EP3474250B1 - Method and detector system for detecting a flame event - Google Patents
Method and detector system for detecting a flame event Download PDFInfo
- Publication number
- EP3474250B1 EP3474250B1 EP18198091.3A EP18198091A EP3474250B1 EP 3474250 B1 EP3474250 B1 EP 3474250B1 EP 18198091 A EP18198091 A EP 18198091A EP 3474250 B1 EP3474250 B1 EP 3474250B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- camera
- flame
- detector
- event
- vis
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000000034 method Methods 0.000 title claims description 79
- 238000001514 detection method Methods 0.000 claims description 92
- 230000005855 radiation Effects 0.000 claims description 88
- 230000007717 exclusion Effects 0.000 claims description 51
- 238000011156 evaluation Methods 0.000 claims description 47
- 238000012544 monitoring process Methods 0.000 claims description 15
- FGUUSXIOTUKUDN-IBGZPJMESA-N C1(=CC=CC=C1)N1C2=C(NC([C@H](C1)NC=1OC(=NN=1)C1=CC=CC=C1)=O)C=CC=C2 Chemical compound C1(=CC=CC=C1)N1C2=C(NC([C@H](C1)NC=1OC(=NN=1)C1=CC=CC=C1)=O)C=CC=C2 FGUUSXIOTUKUDN-IBGZPJMESA-N 0.000 claims description 14
- 238000010191 image analysis Methods 0.000 claims description 12
- GNFTZDOKVXKIBK-UHFFFAOYSA-N 3-(2-methoxyethoxy)benzohydrazide Chemical compound COCCOC1=CC=CC(C(=O)NN)=C1 GNFTZDOKVXKIBK-UHFFFAOYSA-N 0.000 claims description 10
- 230000003595 spectral effect Effects 0.000 description 8
- 238000005259 measurement Methods 0.000 description 7
- 238000011161 development Methods 0.000 description 3
- 230000000007 visual effect Effects 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 230000000873 masking effect Effects 0.000 description 1
- 238000009999 singeing Methods 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 238000012731 temporal analysis Methods 0.000 description 1
- 230000002123 temporal effect Effects 0.000 description 1
- 238000001931 thermography Methods 0.000 description 1
- 238000000700 time series analysis Methods 0.000 description 1
- 238000012549 training Methods 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B17/00—Fire alarms; Alarms responsive to explosion
- G08B17/12—Actuation by presence of radiation or particles, e.g. of infrared radiation or of ions
- G08B17/125—Actuation by presence of radiation or particles, e.g. of infrared radiation or of ions by using a video camera to detect fire or smoke
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B17/00—Fire alarms; Alarms responsive to explosion
- G08B17/12—Actuation by presence of radiation or particles, e.g. of infrared radiation or of ions
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B29/00—Checking or monitoring of signalling or alarm systems; Prevention or correction of operating errors, e.g. preventing unauthorised operation
- G08B29/18—Prevention or correction of operating errors
- G08B29/185—Signal analysis techniques for reducing or preventing false alarms or for enhancing the reliability of the system
- G08B29/188—Data fusion; cooperative systems, e.g. voting among different detectors
Definitions
- the present invention relates to a method for detecting a flame event by a detector system, the detector system having a radiation detector and at least one camera detector and monitoring a detection area by the radiation detector and the at least one camera detector for occurrence of flame events.
- the invention further relates to a detector system for detecting a flame event, comprising a radiation detector and at least one camera detector for monitoring a detection area for the occurrence of flame events.
- radiation detectors can be used, which in particular monitor an environment of the radiation detector for the occurrence of a radiation signature characteristic of flame events, particularly preferably in the infrared spectral range.
- internal evaluations of the measured radiation for example on radiation modulations, such as are caused by flame events, can cause flame events very quickly, often within 300 ms or faster, and usually also with a low error rate can be detected.
- a radiation detector is, for example, from the US 5,375,159 known.
- a disadvantage of such radiation detectors can, however, be that they are only designed for global monitoring of a detection area, so that a flame event is detected as soon as such a flame event occurs in the detection area of the radiation detector. Radiation detectors can therefore not be used, or at least only to a limited extent, in areas in which planned flame events, for example flaming and / or flares, are provided.
- detectors for detecting flame events are camera detectors, which record image sequences in the visual and / or infrared spectral range, for example. As soon as an indication for a flame event is recognized in one of the images, these image sequences can be subjected to a subsequent image analysis, in which a flame event can be detected reliably and with a low error rate, in particular by image-by-image observation. This precise image analysis is often time-consuming, so that, especially in comparison to radiation detectors, camera detectors can only provide reliable detection of a flame event after a certain time, often several seconds. In addition to this disadvantage of a slow detection speed, camera detectors have the advantage, however, that areas in the images captured by the camera detectors can be excluded from the image analysis and thus the monitoring for flame events. Such flame cameras are for example from the US 6 696 958 as well as the US 7,609,852 known.
- US 5 734 335 describes a system that monitors a forest and detects and reports a fire early on.
- Several spatially distributed detectors 1 each generate images which are transmitted to a control center 2 and displayed there on screens 6 and recorded on video recorders 7.
- Each detector 1 comprises a rotatably mounted video camera 11, a drive 12 for rotating the video camera 11, an infrared sensor 10 for detecting heat sources, a weather sensor 14 and a control device 13.
- the control device 13 evaluates signals from the infrared sensor 10 and in doing so forms the derivative of Infrared signals, among other things to discover the sun as a large heat source as well as minor heat sources and to exclude a corresponding false alarm due to the sun or a minor heat source.
- the fire monitoring system 1 from DE 10 2012 213125 A1 comprises a first surveillance camera 4 with a field of view 6 and a second surveillance camera 5 with a field of view 7.
- the two surveillance cameras 4, 5 can be designed as thermal imaging cameras or cameras in the infrared range between 700 and 950 nm.
- the two fields of view 6 and 7 are on a common one Monitoring area 8 directed.
- the surveillance images 4.1 and 5.1 are forwarded to an evaluation device 9 which can detect a fire 2 and in particular smoke 3 on the surveillance images 4.1 and 5.1 and can determine the position of the fire 2 in a three-dimensional coordinate system.
- An optional masking module 11 masks temporary disruptive objects, for example a crane 13 that runs through.
- the detection device 1 of DE 10 2008 001 383 A1 comprises an optical device 3, which performs a section of a monitoring area on a sensor element 2.
- the sensor element 2 is, for example, a CCD chip, a CMOS chip or a camera.
- the detection device 1 is arranged on a ceiling 12 of a room.
- the object of the invention was to at least partially eliminate these disadvantages of methods and detection systems for detecting flame events. It is therefore the object of the present invention to provide a method and a detector system for detecting a flame event, which enable a quick and easy in a particularly simple and cost-effective manner To enable flame events to be detected as error-free as possible in areas in which desired and planned flame events are also expected.
- a method according to the invention is provided for detecting a flame event.
- a detector system is used, the detector system having at least one radiation detector and at least one camera detector.
- a detection area of the detector system is monitored by the radiation detector and the at least one camera detector during an implementation of a method according to the invention in order to detect the occurrence of flame events.
- the detection area of the detector system in the sense of the invention is formed in particular by the overlap of the detection areas of the detectors used. An additional evaluation of measurement data of the individual detectors, which are determined outside this overlap area, is possible.
- the radiation detector can preferably be designed to recognize a specific radiation signature, for example a wavelength band, of such a flame event.
- the at least one camera detector is preferably designed to record image data of the detection area, and can provide at least one indication for the presence of a flame event in the detection area by means of an initial evaluation.
- At least one exclusion area is defined in the detection area of the detector system.
- This exclusion area is preferably defined in such a way that it covers an area in the detection area that is covered by the detector system should not be monitored.
- these can preferably be areas in which planned flame events, for example flaming, are provided and can also occur when carrying out a method according to the invention or when operating a corresponding detector system.
- Such exclusion areas can thus provide that a method according to the invention can also be used where such planned and intended flame events are carried out without these being recognized as, in particular, undesired flame events.
- the entire detection area can in particular also be defined as the exclusion area.
- the radiation detector is evaluated in order to detect the presence of a radiation event.
- a radiation event can preferably be caused by an occurrence of a flame event in the detection area, for example as a characteristic radiation signature of such a flame event recognized by the radiation detector.
- Radiation detectors can usually provide this quickly and with a low error rate.
- an initial evaluation of the at least one camera detector is carried out in the following step c).
- a camera indication can be recognized as a result of this initial evaluation of the at least one camera detector.
- a camera indication is in particular a result of the initial evaluation, in which indications of a flame event in the detection area are recognized in at least one of the images recorded by the camera detector. If a camera detector were operated as the sole detector, a second evaluation, in particular, would follow the detection of such a chamber indication an image-by-image analysis, the measurements of the camera detector are carried out in order to reliably detect the flame event and in particular to exclude incorrect identifications.
- Such an image-by-image analysis preferably includes a time series analysis by means of which a temporal course of image elements, in particular image elements on which the camera indication is based, can be tracked and assessed.
- a camera indication in addition to the radiation event recognized in step b), there is a camera indication, so that in other words, at least one indication from both detectors, both the radiation detector and the at least one camera detector for an existing flame event in the detection area.
- step d if there is a camera indication recognized in step c), it is checked whether this camera indication is arranged outside the at least one exclusion area defined in step a).
- Possible desired flame events for example flaming, can be carried out in this way and can be excluded from detection again by defining the exclusion area in step d), without this impairing detection of unwanted, possibly harmful flame events.
- a flame event is finally detected if the check in step d) is positive Has delivered the result.
- the flame event in step e) is detected outside the at least one exclusion area.
- the flame event is thus detected by the presence of both a radiation event and a camera indication, the camera indication in particular being located outside the at least one exclusion area. In this way, flame events can be detected in the detection area, an exclusion area again being excluded in the detection area.
- the method according to the invention can be carried out by using two detectors in one detector system, for example also by a particularly compact detector system.
- the two detectors can also be arranged in a common housing.
- no flame event is also detected if, for example, no radiation event is already detected in step b)
- no camera indication is detected in step c) and / or in step d) the camera indication is arranged within the defined at least one exclusion area.
- a camera indication is recognized if an indication of an inflamed event is recognized in at least one image and in the detection area.
- a camera event is recognized by a second evaluation, the second evaluation being a subsequent image analysis.
- the radiation detector can also have a certain error rate, in particular with regard to flame events which are not recognized as a radiation event in the radiation detector.
- step f) of this embodiment of a method according to the invention an initial evaluation of the at least one camera detector is carried out in order to recognize a camera indication, even if a radiation event is not detected. If such a camera indication is recognized, a second evaluation of the at least one camera detector is carried out in the next step g).
- This second evaluation can include an image analysis, preferably an image-by-image analysis of a plurality of images of the detection area recorded by the at least one camera detector.
- a camera event can be recognized, which likewise indicates the presence of a flame event in the detection area.
- a recognized camera event is present, it is again checked whether the camera event is arranged outside the defined exclusion area. If this is not the case, the detection is terminated and no flame event is detected. However, should the recognized camera event be arranged outside the defined exclusion area, a flame event is recognized in the final step i). This flame event is in turn arranged outside the defined exclusion area.
- an alarm signal is output when a flame event is detected in step e) and / or in step i).
- the alarm signal can in particular be output directly by the detector system, for example as an optical and / or acoustic alarm signal.
- the alarm signal can also be passed on to a downstream alarm unit, for example as an electrical and / or electronic signal.
- Downstream alarm units in the sense of the invention can be, for example, control systems, but also rescue organizations, such as a fire brigade or the like. Comprehensive notification of the surroundings, in particular for example to initiate countermeasures against the flame event, can be made possible in this way.
- steps b) to e) and / or steps b) and f) to i) are carried out continuously or at least essentially continuously.
- An uninterrupted or at least essentially uninterrupted monitoring of the detection area for the occurrence of flame events outside the exclusion area can be provided in this way.
- the evaluation of the radiation detector in step b) and the carrying out of the first evaluation and / or the second evaluation of the at least one camera detector in steps c), f) or g) can preferably also be carried out simultaneously and also continuously or at least essentially continuously ,
- a method according to the invention can be designed such that an infrared detector is used as the radiation detector.
- Infrared detectors are particularly preferred radiation detectors, since flame events mostly have clearly recognizable heat signatures and thus characteristic radiation signatures in the infrared range.
- Control measurements in other wavelength ranges can also be carried out with infrared detectors in order to improve the measurement accuracy of a radiation detector designed as an infrared detector.
- infrared detectors can also be designed to check changes in time, such as flickering or changing a size, of the flame event. A measurement accuracy of the radiation detector designed as an infrared detector can thereby be further improved.
- other wavelength ranges can also be monitored by appropriate special training of the radiation detector, for example in order to detect flame events from hydrogen fires particularly reliably.
- a method according to the invention can also be designed such that a VIS flame camera and / or an IR flame camera are used as the camera detector.
- a camera detector a VIS flame camera monitoring the detection range in the visual spectral range
- an IR flame camera monitoring the detection range in the infrared spectral range.
- Flame cameras are designed in particular to carry out an initial evaluation for quickly providing a camera indication, ie, a first indication that a flame event could be present. Downstream of the camera indication there is usually an image processing as a second evaluation, in particular an image-by-image analysis, by means of which an actual presence of a flame event can be recognized with high accuracy.
- flame cameras can particularly quickly provide a first indication of a flame event, whereby an exact detection of a flame event with a low error rate can be provided by a subsequent image processing.
- At least two camera detectors are used, wherein for detecting a flame event in step e) at least one of the camera detectors detects a camera indication arranged outside the at least one exclusion area defined in step a) and / or for the detection of a flame event in step h), at least one of the camera detectors detects a camera event arranged outside the at least one exclusion area defined in step a).
- at least two camera detectors are used, which can be used in particular in parallel and / or independently of one another.
- the two camera detectors can be used as redundant units. As soon as at least one of the camera detectors detects a camera indication or a camera event, a flame event is detected.
- a method according to the invention can also be further developed in such a way that two camera detectors are used, a VIS flame camera being used as the first camera detector and an IR flame camera being used as the second camera detector.
- two different flame cameras are used as camera detectors.
- the two flame cameras are designed such that they monitor two different spectral bands, the visual spectral band and the infrared spectral band. A further improvement in the detection reliability of a flame event in the detection area can be provided in this way.
- steps c) to e) are only carried out for the VIS flame camera, with steps c) to e being missing in the absence of a camera indication of the VIS flame camera recognized in step c) ) for the IR flame camera.
- the VIS flame camera is first evaluated for recognizing a camera indication and the IR flame camera is only used if the VIS flame camera does not recognize a recognized camera indication.
- the VIS flame camera is used for checking in order to include two different radiation ranges or spectral ranges as early as possible when carrying out a method according to the invention in the detection of the flame event. If the VIS flame camera does not detect a camera indication, the additional use of the IR flame camera can prevent or at least make it significantly more difficult to overlook a flame event.
- a method according to the invention can be further developed such that steps f) to g) are only carried out for the VIS flame camera, with steps f) to i) being carried out for a camera event recognized in step g) for the VIS flame camera for the IR flame camera.
- steps f) to i) being carried out for a camera event recognized in step g) for the VIS flame camera for the IR flame camera.
- the VIS flame camera mostly has a higher error rate, and thus a triggering of false alarms, than an IR flame camera.
- the VIS flame camera can therefore be checked by the IR flame camera. This can increase security in the case of a recognized and detected flame event.
- Step h) of a method according to the invention in which a check of the recognized camera event for an arrangement within or outside the exclusion area is carried out, can also be carried out for the VIS flame camera separately or in addition together with the IR flame camera in a single execution of step h).
- a method according to the invention can alternatively be further developed in such a way that steps f) to g) are only carried out for the VIS flame camera, with steps f), h) and in the case of a camera event recognized in step g) for the VIS flame camera i) are carried out for the IR flame camera, in step h) if there is a camera indication of the IR flame camera recognized in step f), a check is carried out as to whether the camera indication is arranged outside the at least one exclusion area defined in step a).
- the VIS flame camera usually has a higher error rate than an IR flame camera.
- the VIS flame camera can be checked by the IR flame camera
- the measurements of the IR flame camera are only checked for the presence of a camera indication. Security in the case of a recognized and detected flame event can thereby be increased and, at the same time, the entire implementation of a method according to the invention can be accelerated by not having to carry out a second evaluation of the IR flame camera.
- a flame event can be detected in step i) if a VIS location of the camera event of the VIS flame camera and an IR location of the camera event of the IR flame camera match or at least essentially match , In this way it can be avoided that the two flame cameras recognize camera events which are arranged at different positions.
- a flame event is only detected by a method according to the invention in this embodiment if both locations, both the VIS location and the IR location, match. Another In this way, it is possible to reduce an error rate and thereby avoid and prevent false alarms due to incorrectly recognized flame events.
- a method according to the invention can be designed such that step f) is only carried out for the VIS flame camera, with steps f) to i) for the IR if the camera indication of the VIS flame camera recognized in step f) is missing -Flame camera are running.
- no indication of the presence of a flame event is generated either by the radiation detector or by the VIS flame camera. If a camera indication and a corresponding camera event that lies outside the exclusion range are nevertheless detected by the IR flame camera, a flame event is also recognized overall in this case. Even if the flame event is incorrectly detected by the radiation detector and the VIS flame camera, reliable detection of the flame event can thus be provided by a method according to the invention.
- the object is achieved by a detector system for detecting a flame event, comprising a radiation detector and at least one camera detector for monitoring a detection area for the occurrence of flame events.
- a detector system according to the invention is characterized in that the detector system is designed to carry out a method according to the first aspect of the invention. In this way, a detector system according to the invention brings with it all of the advantages which have already been listed in detail in connection with a method according to the first aspect of the invention.
- a detector system according to the invention it can particularly preferably be provided that the radiation detector and the at least one camera detector are arranged in a common housing. To this way, a particularly compact embodiment of a detector system according to the invention can be provided.
- a detector system can also be developed in such a way that a radiation detection area of the radiation detector and a camera detection area of the at least one camera detector are congruent or at least essentially congruent.
- a detection area of the entire detector system results in particular from the overlap of the radiation detection area of the radiation detector and the camera detection areas of the camera detectors used. Because the radiation detection area and the camera detection area are congruent or at least essentially congruent, a particularly large detection area of the entire detector system can be provided. In particular, areas that cannot be monitored by all or even only a single one of the detectors used can be minimized or preferably even avoided entirely.
- the detection area of the detector system in the sense of the invention is formed in particular by the overlap of the detection areas of the detectors used. An additional evaluation of measurement data of the individual detectors, which are determined outside this overlap area, is possible.
- the radiation detection area can, for example, be designed to be significantly larger than the camera detection area, which in particular can be designed to match the planned flames.
- the radiation detector is used for the actual monitoring for flame events, the detector system according to the invention or the method according to the invention making it possible to hide the desired flames.
- the radiation detector is designed as an infrared detector and / or the at least one camera detector is designed as a VIS flame camera and / or as an IR flame camera.
- these Detectors represent particularly preferred embodiments of a radiation detector or a camera detector.
- the detector system can have both an infrared detector and a VIS flame camera and additionally an IR flame camera. A particularly reliable detection of a flame event, which can be carried out particularly quickly, with a low error rate, can be provided in this way.
- FIG. 1 and 2 Possible embodiments of a method according to the invention are shown, as can be carried out by a detector system 1 according to the invention.
- a possible embodiment of a detector system 1 according to the invention is shown in FIG Fig. 3 shown.
- the 1 to 3 are described below together, with the details of the individual figures being discussed separately in each case.
- Fig. 3 shows a detector system 1 according to the invention, which is designed to detect a flame event 4 in a detection area 3 of the detector system 1.
- the detector system 1 shown has a radiation detector 10 and two camera detectors 20, which are arranged in a common housing 2.
- a particularly compact embodiment of a detector system 1 according to the invention can be provided in this way.
- the radiation detector 10 is designed in particular as an infrared detector 12.
- the two camera detectors 20 are designed as a VIS flame camera 22 and as an IR flame camera 23.
- the detection area 3 of the detector system 1 results from the overlap of the radiation detection area 11 of the radiation detector 10 and the camera detection areas 21 of the two camera detectors 20.
- the detection areas 11, 21 of the individual detector subsystems 10, 20 are shown in FIG Fig. 3 marked with different lines and are preferably congruent, as shown, at least essentially, except for small edge sections.
- Fig. 3 visible that both a flame event 4 and a flame 6 are arranged in the detection area 3 of the detector system
- a flame 6 represents a desired and / or planned flame event, with no flame event 4 in particular being to be recognized by the detector system 1 when the flame 6 occurs.
- This can be provided in that in each embodiment of a method according to the invention in a first step a), in which Fig. 1 and 2 denoted by A, an exclusion region 5 is defined in the detection region 3.
- This exclusion area 5 is preferably defined in such a way that possible flames 6 are completely covered by this exclusion area 5.
- the radiation detector 10 is evaluated in order to detect a radiation event 30.
- Fig. 1 shown possible embodiment of a method according to the invention further described.
- a radiation event 30 recognized in step b) is present, in the next step c), in Fig. 1 denoted by C, a camera detector 20 is evaluated in order to recognize a camera indication 41.
- the method shown is first subjected to the VIS flame camera 22 of the initial evaluation 40. If a camera indication 41 is ascertained during this initial evaluation 40, this is shown in the next step d), in the left branch of the in Fig. 1 shown D designated, subjected to a check 50 whether the camera indication 41 recognized by the VIS flame camera 22 is arranged inside or outside the exclusion area 5.
- a flame event 4 is detected in the detection area 3 outside the at least one exclusion area 5. Based on this detection of the flame event 4, an alarm signal 7 can subsequently be output.
- step c) If no camera indication 41 is recognized in step c) during the initial evaluation 40 of the VIS flame camera 22, it is shown in the right branch of the in Fig. 1 illustrated method, step c) for the IR flame camera 23 and this also subjected to an initial evaluation 40. If a camera indication 41 of the IR flame camera 23 is recognized during this initial evaluation 40, this camera indication 41, which is now provided by the IR flame camera 23, is again checked in the following step d) as to whether it is arranged inside or outside the exclusion area 5. If the result of this check 50 is that the camera indication 41 is arranged outside the exclusion area 5, the flame event 4 is again detected in the last step e) of a method according to the invention. It is also conceivable here to send out a downstream alarm signal 7.
- Fig. 2 The embodiment of a method according to the invention shown relates to the case when no radiation event 30 is detected in step b) when evaluating the radiation detector 10.
- an initial evaluation 40 for example of the VIS flame camera 22
- the left branch becomes the one in FIG Fig. 2
- a second evaluation 42 of the VIS flame camera 22 is carried out.
- a camera event 43 of the VIS flame camera 22 can be recognized.
- the second evaluation 40 can preferably be, for example, a downstream image analysis, in particular an image-by-image analysis. A particularly reliable, albeit time-consuming, detection of a flame event 4 can be provided by this second evaluation 40. If a camera event 43 of the VIS flame camera 22 is present, steps f) and g) are repeated for the IR flame camera 23. As a result, the security when detecting a flame event 4 can be increased and, in particular, incorrect identifications by the VIS flame camera 22 can be avoided. If a camera indication 41 is recognized during the first evaluation 40 of the IR flame camera 23 (step f), a second evaluation 42 can also be carried out for the IR flame camera 23 in step g).
- step f) for the IR flame camera 23 in order to recognize a camera indication 41.
- the location of the camera event 43 becomes the location of the camera indication 43 41 of the IR flame camera 23 checked. If, for both flame cameras 22, 23, the check 50 shows that the respective camera event 43 or the camera indication 41 is outside the exclusion area 5, in the next step i), in Fig.
- a flame event 4 is detected.
- step i) it can also be checked whether a VIS location 24 of the camera event 43 of the VIS flame camera 22 and an IR location 25 of the camera event 43 of the IR flame camera 23 match. This correspondence can also be used as a condition that must be fulfilled in order to detect a flame event 4 in step i).
- An alarm signal 7 can also be transmitted downstream of the detection of the flame event 4 in this embodiment of a method according to the invention.
- step f) in which an initial evaluation 40 of the VIS flame camera 22 is carried out, no camera indication 41 is recognized, steps f) to i) can also be carried out for the IR flame camera 23 alone.
- step f) an initial evaluation 40 of the IR flame camera 23 is carried out in order to obtain a camera indication 41 of the IR flame camera 23. If this camera indication 41 is present, a second evaluation 42 IR flame camera 23 is carried out in step g) in order to obtain a camera event 43.
- step h) the location of the camera event 43 is checked to determine whether it is outside the exclusion area 5. If this check 50 is positive, a flame event 4 outside the exclusion area 5 in the detection area 3 of the detector system 1 is recognized in step i) and an alarm signal 7 is subsequently output.
- steps b) to e) or b) and f) to i) can be carried out continuously or at least essentially continuously.
- a particularly rapid and in particular also safe and precise detection of a flame event 4 can be provided in a detection area 3 by a detector system 1 according to the invention or by a method according to the invention, wherein an exclusion area 5 can be defined in particular in the detection area 3, which can be determined by the detection by the detector system 1 is excluded.
- a quick and At the same time, reliable detection of flame events 4 also in areas in which, for example, flames 6 are provided can be provided in this way.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Computer Security & Cryptography (AREA)
- Multimedia (AREA)
- Fire-Detection Mechanisms (AREA)
- Fire Alarms (AREA)
Description
Die vorliegende Erfindung betrifft ein Verfahren zum Detektieren eines Flammenereignisses durch ein Detektorsystem, wobei das Detektorsystem einen Strahlungsdetektor und zumindest einen Kameradetektor aufweist und einen Detektionsbereich durch den Strahlungsdetektor und den zumindest einen Kameradetektor auf ein Auftreten von Flammenereignissen überwacht. Ferner betrifft die Erfindung ein Detektorsystem zum Detektieren eines Flammenereignisses, aufweisend einen Strahlungsdetektor und zumindest einen Kameradetektor zum Überwachen eines Detektionsbereichs auf ein Auftreten von Flammenereignissen.The present invention relates to a method for detecting a flame event by a detector system, the detector system having a radiation detector and at least one camera detector and monitoring a detection area by the radiation detector and the at least one camera detector for occurrence of flame events. The invention further relates to a detector system for detecting a flame event, comprising a radiation detector and at least one camera detector for monitoring a detection area for the occurrence of flame events.
In der modernen Technik, beispielsweise in industriellen Produktionsanlagen, ist es grundsätzlich bekannt, ein Erkennen bzw. Detektieren von Flammenereignissen vorzusehen. Gegebenenfalls kann nach einer derartigen Detektion eines Flammenereignisses auch eine Alarmierung vorgenommen werden. In bestimmten Bereichen ist ein Vorhandensein von entsprechenden Detektorsystemen teilweise sogar gesetzlich vorgeschrieben.In modern technology, for example in industrial production plants, it is generally known to provide for the detection or detection of flame events. If necessary, an alarm can also be carried out after such detection of a flame event. In certain areas, the presence of appropriate detector systems is sometimes even required by law.
Für eine Detektion von Flammenereignissen können beispielsweise Strahlungsdetektoren eingesetzt werden, die insbesondere eine Umgebung des Strahlungsdetektors auf ein Auftreten einer für Flammenereignisse charakteristische Strahlungssignatur, besonders bevorzugt im infraroten Spektralbereich, überwachen. Durch oftmals interne Auswertungen der gemessenen Strahlung, beispielsweise auf Strahlungsmodulationen, wie sie durch Flammenereignisse hervorgerufen werden, können Flammenereignisse sehr schnell, oftmals innerhalb 300 ms oder schneller, und darüber hinaus zumeist mit einer geringen Fehlerquote detektiert werden. Ein derartiger Strahlungsdetektor ist beispielsweise aus der
Weitere bekannte Detektoren zum Detektieren von Flammenereignissen sind Kameradetektoren, die beispielsweise im visuellen und/oder infraroten Spektralbereich Bildfolgen aufnehmen. Diese Bildfolgen können, sobald in einem der Bilder eine Indikation für ein Flammenereignis erkannt wird, einer nachgeschalteten Bildanalyse unterzogen werden, bei der insbesondere durch eine Bild-für-Bild-Betrachtung ein Flammenereignis sicher und mit geringer Fehlerquote erkannt werden kann. Diese genaue Bildanalyse ist oftmals zeitaufwendig, so dass, insbesondere im Vergleich zu Strahlungsdetektoren, Kameradetektoren erst nach einer gewissen Zeit, oftmals mehreren Sekunden, eine sichere Detektion eines Flammenereignisses bereitstellen können. Neben diesem Nachteil einer langsamen Detektionsgeschwindigkeit weisen Kameradetektoren jedoch den Vorteil auf, dass in den durch die Kameradetektoren aufgenommenen Bildern Bereiche von der Bildanalyse und damit der Überwachung auf Flammenereignisse ausklammerbar sind. Derartige Flammenkameras sind beispielsweise aus der
In
Das Brandüberwachungssystem 1 von
Die Detektionsvorrichtung 1 von
Ausgehend von diesem Stand der Technik hat der Erfindung die Aufgabe zugrunde gelegen, diese Nachteile von Verfahren sowie Detektionssystemen zum Detektieren von Flammenereignissen zumindest teilweise zu beheben. Es ist daher die Aufgabe der vorliegenden Erfindung, ein Verfahren sowie ein Detektorsystem zum Detektieren eines Flammenereignisses bereitzustellen, die in besonders einfacher und kostengünstiger Weise ermöglichen, eine schnelle und möglichst fehlerfreie Detektion von Flammenereignissen in Bereichen zu ermöglichen, in denen auch gewollte und geplante Flammenereignisse erwartet werden.Starting from this prior art, the object of the invention was to at least partially eliminate these disadvantages of methods and detection systems for detecting flame events. It is therefore the object of the present invention to provide a method and a detector system for detecting a flame event, which enable a quick and easy in a particularly simple and cost-effective manner To enable flame events to be detected as error-free as possible in areas in which desired and planned flame events are also expected.
Voranstehende Aufgabe wird gelöst durch ein Verfahren zum Detektieren eines Flammenereignisses durch ein Detektorsystem mit den Merkmalen des unabhängigen Anspruchs 1. Ferner wird die Aufgabe gelöst durch ein Detektorsystem zum Detektieren eines Flammenereignisses mit den Merkmalen des nebengeordneten Anspruchs 16. Weitere Merkmale und Details der Erfindung ergeben sich aus den Unteransprüchen, der Beschreibung und den Zeichnungen. Dabei gelten Merkmale und Details, die in Verbindung mit dem erfindungsgemäßen Verfahren beschrieben sind, selbstverständlich auch in Verbindung mit dem erfindungsgemäßen Detektorsystem und jeweils umgekehrt, so dass bezüglich der verschiedenen Erfindungsaspekte stets wechselseitig Bezug genommen wird bzw. werden kann.The above object is achieved by a method for detecting a flame event by a detector system with the features of
Gemäß einem ersten Aspekt der Erfindung wird die Aufgabe gelöst durch ein Verfahren zum Detektieren eines Flammenereignisses durch ein Detektorsystem, wobei das Detektorsystem einen Strahlungsdetektor und zumindest einen Kameradetektor aufweist und einen Detektionsbereich durch den Strahlungsdetektor und den zumindest einen Kameradetektor auf ein Auftreten von Flammenereignissen überwacht. Ein erfindungsgemäßes Verfahren ist durch folgende Schritte gekennzeichnet:
- a) Festlegen zumindest eines Ausschlussbereichs im Detektionsbereich des Detektorsystems,
- b) Auswerten des Strahlungsdetektors zum Erkennen eines Strahlungsereignisses,
- c) bei Vorliegen eines in Schritt b) erkannten Strahlungsereignisses Durchführen einer Erstauswertung des zumindest einen Kameradetektors zum Erkennen einer Kameraindikation,
- d) bei Vorliegen einer in Schritt c) erkannten Kameraindikation Durchführen einer Überprüfung, ob die Kameraindikation außerhalb des in Schritt a) festgelegten zumindest einen Ausschlussbereichs angeordnet ist, und
- e) bei Vorliegen eines positiven Ergebnisses der Überprüfung in Schritt b) Detektieren eines Flammenereignisses im Detektionsbereich außerhalb des zumindest einen Ausschlussbereichs.
- a) defining at least one exclusion area in the detection area of the detector system,
- b) evaluating the radiation detector to detect a radiation event,
- c) in the presence of a radiation event identified in step b), performing an initial evaluation of the at least one camera detector in order to recognize a camera indication,
- d) if a camera indication identified in step c) is present, a check is carried out to determine whether the camera indication is arranged outside the at least one exclusion area defined in step a), and
- e) if there is a positive result of the check in step b) detecting a flame event in the detection area outside the at least one exclusion area.
Ein erfindungsgemäßes Verfahren ist für ein Detektieren eines Flammenereignisses vorgesehen. Während eines erfindungsgemäßen Verfahrens wird ein Detektorsystem eingesetzt, wobei das Detektorsystem zumindest einen Strahlungsdetektor und wenigstens einen Kameradetektor aufweist. Durch den Strahlungsdetektor und den zumindest einen Kameradetektor wird während einer Durchführung eines erfindungsgemäßen Verfahrens ein Detektionsbereich des Detektorsystems überwacht, um eben ein Auftreten von Flammenereignissen zu detektieren. Der Detektionsbereich des Detektorsystems im Sinne der Erfindung wird insbesondere durch den Überlapp der Detektionsbereiche der verwendeten Detektoren gebildet. Ein zusätzliches Auswerten von Messdaten der einzelnen Detektoren, die außerhalb dieses Überlappbereichs ermittelt werden, ist möglich. Der Strahlungsdetektor kann bevorzugt zum Erkennen einer spezifischen Strahlungssignatur, beispielsweise eines Wellenlängenbandes, eines derartigen Flammenereignisses ausgebildet sein. Der zumindest eine Kameradetektor wiederum ist bevorzugt zum Aufnehmen von Bilddaten des Detektionsbereichs ausgebildet, und kann in diesen durch einer Erstauswertung zumindest eine Indikation für ein Vorliegen eines Flammenereignisses im Detektionsbereich bereitstellen.A method according to the invention is provided for detecting a flame event. During a method according to the invention, a detector system is used, the detector system having at least one radiation detector and at least one camera detector. A detection area of the detector system is monitored by the radiation detector and the at least one camera detector during an implementation of a method according to the invention in order to detect the occurrence of flame events. The detection area of the detector system in the sense of the invention is formed in particular by the overlap of the detection areas of the detectors used. An additional evaluation of measurement data of the individual detectors, which are determined outside this overlap area, is possible. The radiation detector can preferably be designed to recognize a specific radiation signature, for example a wavelength band, of such a flame event. The at least one camera detector, in turn, is preferably designed to record image data of the detection area, and can provide at least one indication for the presence of a flame event in the detection area by means of an initial evaluation.
In einem ersten Schritt a) eines erfindungsgemäßen Verfahrens wird im Detektionsbereich des Detektorsystems zumindest ein Ausschlussbereich festgelegt. Dieser Ausschlussbereich wird bevorzugt derart festgelegt, dass er einen Bereich im Detektionsbereich überdeckt, der durch das Detektorsystem nicht überwacht werden soll. Dies können beispielsweise bevorzugt derartige Bereiche sein, in denen geplante Flammenereignisse, beispielsweise Abflammungen, vorgesehen sind und beim Durchführen eines erfindungsgemäßen Verfahrens beziehungsweise beim Betreiben eines entsprechenden Detektorsystems auch auftreten können. Durch derartige Ausschlussbereiche kann somit bereitgestellt werden, dass ein erfindungsgemäßes Verfahren auch dort eingesetzt werden kann, wo eben derartige geplante und gewollte Flammenereignisse durchgeführt werden, ohne dass diese als insbesondere ungewollte Flammenereignisse erkannt werden. Als Ausschlussbereich kann insbesondere auch der gesamte Detektionsbereich festgelegt werden.In a first step a) of a method according to the invention, at least one exclusion area is defined in the detection area of the detector system. This exclusion area is preferably defined in such a way that it covers an area in the detection area that is covered by the detector system should not be monitored. For example, these can preferably be areas in which planned flame events, for example flaming, are provided and can also occur when carrying out a method according to the invention or when operating a corresponding detector system. Such exclusion areas can thus provide that a method according to the invention can also be used where such planned and intended flame events are carried out without these being recognized as, in particular, undesired flame events. The entire detection area can in particular also be defined as the exclusion area.
Im folgenden Schritt b) eines erfindungsgemäßen Verfahrens wird der Strahlungsdetektor ausgewertet, um ein Vorliegen eines Strahlungsereignisses zu erkennen. Ein derartiges Strahlungsereignis kann bevorzugt durch ein Auftreten eines Flammenereignisses im Detektionsbereich hervorgerufen sein, beispielsweise als eine durch den Strahlungsdetektor erkannte charakteristische Strahlungssignatur eines derartigen Flammenereignisses. Dies kann durch Strahlungsdetektoren zumeist schnell und mit einer geringen Fehlerquote bereitgestellt werden. Nach Durchführung des Schritts b) liegt somit eine Information darüber vor, ob im Detektionsbereich ein Flammenereignis vorhanden sein könnte, das durch den Strahlungsdetektor als Strahlungsereignis erkannt worden ist.In the following step b) of a method according to the invention, the radiation detector is evaluated in order to detect the presence of a radiation event. Such a radiation event can preferably be caused by an occurrence of a flame event in the detection area, for example as a characteristic radiation signature of such a flame event recognized by the radiation detector. Radiation detectors can usually provide this quickly and with a low error rate. After step b) has been carried out, information is therefore available as to whether there could be a flame event in the detection area that was recognized by the radiation detector as a radiation event.
Wenn in Schritt b) ein derartiges Strahlungsereignis erkannt worden ist, wird im folgenden Schritt c) eine Erstauswertung des zumindest einen Kameradetektors durchgeführt. Insbesondere kann als Ergebnis dieser Erstauswertung des zumindest einen Kameradetektors eine Kameraindikation erkannt werden. Eine Kameraindikation ist insbesondere ein Ergebnis der Erstauswertung, bei dem Hinweise auf ein Flammenereignis im Detektionsbereich in zumindest einem der durch den Kameradetektor aufgenommenen Bilder erkannt werden. Bei einem Betrieb eines Kameradetektors als alleiniger Detektor würde im Anschluss an ein Erkennen einer derartigen Kammerindikation eine Zweitauswertung, insbesondere eine Bild-für-Bild-Analyse, der Messungen des Kameradetektors durchgeführt werden, um das Flammenereignis sicher zu detektieren und insbesondere um Fehlidentifikationen auszuschließen. Eine derartige Bild-für-Bild-Analyse umfasst bevorzugt eine Zeitreihenanalyse, durch die ein zeitlicher Verlauf von Bildelementen, insbesondere von Bildelementen, die der Kameraindikation zugrunde liegen, verfolgt und beurteilt werden kann. Zusammenfassend liegt im Falle eines tatsächlich existierenden Flammenereignisses somit nach Durchführung des Schritts c) zusätzlich zu dem in Schritt b) erkannten Strahlungsereignis eine Kameraindikation vor, so dass mit anderen Worten von beiden Detektoren, sowohl dem Strahlungsdetektor als auch dem zumindest einen Kameradetektor, zumindest ein Hinweis auf ein existierendes Flammenereignis im Detektionsbereich vorliegt.If such a radiation event has been recognized in step b), an initial evaluation of the at least one camera detector is carried out in the following step c). In particular, a camera indication can be recognized as a result of this initial evaluation of the at least one camera detector. A camera indication is in particular a result of the initial evaluation, in which indications of a flame event in the detection area are recognized in at least one of the images recorded by the camera detector. If a camera detector were operated as the sole detector, a second evaluation, in particular, would follow the detection of such a chamber indication an image-by-image analysis, the measurements of the camera detector are carried out in order to reliably detect the flame event and in particular to exclude incorrect identifications. Such an image-by-image analysis preferably includes a time series analysis by means of which a temporal course of image elements, in particular image elements on which the camera indication is based, can be tracked and assessed. In summary, in the case of a flame event that actually exists, after performing step c), in addition to the radiation event recognized in step b), there is a camera indication, so that in other words, at least one indication from both detectors, both the radiation detector and the at least one camera detector for an existing flame event in the detection area.
Im folgenden Schritt d) wird nun bei Vorliegen einer in Schritt c) erkannten Kameraindikation überprüft, ob diese Kameraindikation außerhalb des in Schritt a) festgelegten zumindest einen Ausschlussbereichs angeordnet ist. Dies stellt einen erfindungswesentlichen Schritt eines erfindungsgemäßen Verfahrens dar, da insbesondere in diesem Schritt überprüft wird, ob das durch die Kameraindikation angezeigte mögliche Vorhandensein des Flammenereignisses an einer Position verortet ist, die von der Überwachung durch das Festlegen des Ausschlussbereichs ausgeschlossen werden soll. Dadurch kann insbesondere ermöglicht werden, zwischen geplanten Flammenereignissen, die bevorzugt in Bereichen des Detektionsbereichs angeordnet sind, die durch den zumindest einen Ausschlussbereich abgedeckt sind, und ungewollten, möglicherweise schädlichen Flammenereignissen außerhalb dieses zumindest einen Ausschlussbereichs zu unterscheiden. Mögliche gewollte Flammenereignisse, beispielsweise Abflammungen, können auf diese Weise durchgeführt werden, und durch das Festlegen des Ausschlussbereichs in Schritt d) von einer Detektion wieder ausgenommen werden, ohne dass dadurch eine Detektion von ungewollten, möglicherweise schädlichen Flammenereignissen beeinträchtig wird.In the following step d), if there is a camera indication recognized in step c), it is checked whether this camera indication is arranged outside the at least one exclusion area defined in step a). This represents a step of a method according to the invention, which is essential to the invention, since in this step in particular it is checked whether the possible presence of the flame event indicated by the camera indication is located at a position which is to be excluded from monitoring by defining the exclusion area. In particular, this makes it possible to distinguish between planned flame events, which are preferably arranged in areas of the detection area that are covered by the at least one exclusion area, and undesired, possibly harmful flame events outside of this at least one exclusion area. Possible desired flame events, for example flaming, can be carried out in this way and can be excluded from detection again by defining the exclusion area in step d), without this impairing detection of unwanted, possibly harmful flame events.
Im letzten Schritt e) eines erfindungsgemäßen Verfahrens wird abschließend ein Flammenereignis detektiert, wenn die Überprüfung in Schritt d) ein positives Ergebnis geliefert hat. Insbesondere wird das Flammenereignis in Schritt e) außerhalb des zumindest einen Ausschlussbereichs detektiert. Zusammenfassend wird das Flammenereignis somit durch ein Vorliegen sowohl eines Strahlungsereignisses als auch einer Kameraindikation detektiert, wobei insbesondere die Kameraindikation außerhalb des zumindest einen Ausschlussbereichs verortet ist. Auf diese Weise kann eine Detektion von Flammenereignissen im Detektionsbereich durchgeführt werden, wobei im Detektionsbereich wiederum ein Ausschlussbereich ausgeschlossen werden kann. Durch die Verwendung des Strahlungsdetektors und lediglich der Erstauswertung des zumindest einen Kameradetektors kann durch das erfindungsgemäße Verfahren die Detektion des Flammenereignisses auf eine besonders schnelle Art und Weise und mit geringer Fehlerquote bereitgestellt werden. Darüber hinaus kann das erfindungsgemäße Verfahren durch die Verwendung von zwei Detektoren in einem Detektorsystem beispielsweise auch durch ein besonders kompaktes Detektorsystem durchgeführt werden. So können die beiden Detektoren beispielsweise auch in einem gemeinsamen Gehäuse angeordnet sein. Auch wird insbesondere auch kein Flammenereignis detektiert, wenn beispielsweise bereits in Schritt b) kein Strahlungsereignis erkannt wird, in Schritt c) keine Kameraindikation erkannt wird und/oder in Schritt d) die Kameraindikation innerhalb des festgelegten zumindest einen Ausschlussbereichs angeordnet ist.In the last step e) of a method according to the invention, a flame event is finally detected if the check in step d) is positive Has delivered the result. In particular, the flame event in step e) is detected outside the at least one exclusion area. In summary, the flame event is thus detected by the presence of both a radiation event and a camera indication, the camera indication in particular being located outside the at least one exclusion area. In this way, flame events can be detected in the detection area, an exclusion area again being excluded in the detection area. By using the radiation detector and merely evaluating the at least one camera detector for the first time, the inventive method enables the flame event to be detected in a particularly rapid manner and with a low error rate. In addition, the method according to the invention can be carried out by using two detectors in one detector system, for example also by a particularly compact detector system. For example, the two detectors can also be arranged in a common housing. In particular, no flame event is also detected if, for example, no radiation event is already detected in step b), no camera indication is detected in step c) and / or in step d) the camera indication is arranged within the defined at least one exclusion area.
Ferner kann ein erfindungsgemäßes Verfahren dahin gehend weiterentwickelt sein, dass bei einem Fehlen eines in Schritt b) erkannten Strahlungsereignisses folgende Schritte ausgeführt werden:
- f) Durchführen einer Erstauswertung des zumindest einen Kameradetektors zum Erkennen einer Kameraindikation,
- g) bei Vorliegen einer in Schritt f) erkannten Kameraindikation Durchführen einer Zweitauswertung des zumindest einen Kameradetektors zum Erkennen eines Kameraereignisses,
- h) bei Vorliegen eines in Schritt g) erkannten Kameraereignisses Durchführen einer Überprüfung, ob das Kameraereignis außerhalb des in Schritt a) festgelegten zumindest einen Ausschlussbereichs angeordnet ist, und
- i) bei Vorliegen eines positiven Ergebnisses der Überprüfung in Schritt h) Detektieren eines Flammenereignisses im Detektionsbereich außerhalb des zumindest einen Ausschlussbereichs.
- f) performing an initial evaluation of the at least one camera detector to identify a camera indication,
- g) if a camera indication recognized in step f) is present, performing a second evaluation of the at least one camera detector to detect a camera event,
- h) if a camera event recognized in step g) is present, carrying out a check as to whether the camera event is arranged outside the at least one exclusion area defined in step a), and
- i) if there is a positive result of the check in step h) detecting a flame event in the detection area outside the at least one exclusion area.
Gemäß diese Ausgestaltung wird eine Kameraindikation erkannt, wenn in mindestens einem Bild und in Detektionsbereich ein Hinweis auf entflammen Ereignis erkannt wird. Ein Kameraereignis wird durch eine Zweitauswertung erkannt, wobei die Zweitauswertung eine nachgeschaltete Bildanalyse ist.According to this embodiment, a camera indication is recognized if an indication of an inflamed event is recognized in at least one image and in the detection area. A camera event is recognized by a second evaluation, the second evaluation being a subsequent image analysis.
In dieser besonders bevorzugten Weiterentwicklung eines erfindungsgemäßen Verfahrens wird berücksichtigt, dass auch der Strahlungsdetektor eine gewisse Fehlerquote aufweisen kann, insbesondere hinsichtlich von Flammenereignissen, die im Strahlungsdetektor nicht als ein Strahlungsereignis erkannt werden. So wird in Schritt f) dieser Ausgestaltungsform eines erfindungsgemäßen Verfahrens auch bei einem Nichtvorliegen eines erkannten Strahlungsereignisses eine Erstauswertung des zumindest einen Kameradetektors zum Erkennen einer Kameraindikation durchgeführt. Sollte eine derartige Kameraindikation erkannt werden, wird im nächsten Schritt g) eine Zweitauswertung des zumindest einen Kameradetektors durchgeführt. Diese Zweitauswertung kann eine Bildanalyse, bevorzugt eine Bild-für-Bild-Analyse von mehreren durch den zumindest einen Kameradetektor aufgenommenen Bildern des Detektionsbereichs umfassen. In dieser Zweitauswertung kann ein Kameraereignis erkannt werden, das ebenfalls auf ein Vorhandensein eines Flammenereignisses im Detektionsbereich hinweist. Um mögliche gewollte Flammenereignisse, die durch das Festlegen des Ausschlussbereichs in Schritt a) ausgeschlossen werden sollen, zu berücksichtigen, wird im folgenden Schritt h) bei einem Vorliegen eines erkannten Kameraereignisses wiederum überprüft, ob das Kameraereignis außerhalb des festgelegten Ausschlussbereichs angeordnet ist. Sollte dies nicht der Fall sein, wird die Detektion abgebrochen und kein Flammenereignis detektiert. Sollte jedoch das erkannte Kameraereignis außerhalb des festgelegten Ausschlussbereichs angeordnet sein, wird im abschließenden Schritt i) ein Flammenereignis erkannt. Dieses Flammenereignis ist wiederum außerhalb des festgelegten Ausschlussbereichs angeordnet. Auf diese Weise kann in dieser besonders bevorzugten Ausgestaltungsform eines erfindungsgemäßen Verfahrens bereitgestellt werden, dass eine noch bessere Detektion von Flammenereignissen außerhalb des Ausschlussbereichs bereitgestellt werden kann, wobei insbesondere eine Verringerung der gesamten Fehlerquote durch Ausschluss von nicht erkannten Flammenereignissen durch den Strahlungsdetektor bereitgestellt werden kann.In this particularly preferred further development of a method according to the invention, it is taken into account that the radiation detector can also have a certain error rate, in particular with regard to flame events which are not recognized as a radiation event in the radiation detector. In step f) of this embodiment of a method according to the invention, an initial evaluation of the at least one camera detector is carried out in order to recognize a camera indication, even if a radiation event is not detected. If such a camera indication is recognized, a second evaluation of the at least one camera detector is carried out in the next step g). This second evaluation can include an image analysis, preferably an image-by-image analysis of a plurality of images of the detection area recorded by the at least one camera detector. In this second evaluation, a camera event can be recognized, which likewise indicates the presence of a flame event in the detection area. In order to take into account possible desired flame events that are to be excluded by specifying the exclusion area in step a), in the following step h), if a recognized camera event is present, it is again checked whether the camera event is arranged outside the defined exclusion area. If this is not the case, the detection is terminated and no flame event is detected. However, should the recognized camera event be arranged outside the defined exclusion area, a flame event is recognized in the final step i). This flame event is in turn arranged outside the defined exclusion area. In this way, in this particularly preferred embodiment of a method according to the invention, it can be provided that even better detection of flame events outside the exclusion area can be provided, in particular a reduction in the overall error rate by excluding Unrecognized flame events can be provided by the radiation detector.
Besonders bevorzugt kann bei einem erfindungsgemäßen Verfahren ferner vorgesehen sein, dass bei einem Detektieren eines Flammenereignisses in Schritt e) und/oder in Schritt i) ein Alarmsignal ausgegeben wird. Auf diese Weise kann eine Alarmierung ermöglicht werden, wenn ein Vorliegen einer positiven Detektion eines Flammenereignisses durch ein erfindungsgemäßes Verfahren angezeigt wird. Das Alarmsignal kann da insbesondere direkt durch das Detektorsystem ausgegeben werden, beispielsweise als optisches und/oder akustisches Alarmsignal. Alternativ oder zusätzlich kann das Alarmsignal auch an eine nachgeschaltete Alarmierungseinheit weitergegeben werden, beispielsweise als elektrisches und/oder elektronisches Signal. Nachgeschaltete Alarmierungseinheiten im Sinne der Erfindung können beispielsweise Kontrollsysteme, aber auch Rettungsorganisationen, wie beispielsweise eine Feuerwehr oder Ähnliches, sein. Eine umfassende Benachrichtigung der Umgebung, insbesondere beispielsweise für eine Einleitung von Gegenmaßnahmen gegen das Flammenereignis, kann auf diese Weise ermöglicht werden.In a method according to the invention, it can also be particularly preferred that an alarm signal is output when a flame event is detected in step e) and / or in step i). In this way, an alarm can be made possible if a positive detection of a flame event is indicated by a method according to the invention. The alarm signal can in particular be output directly by the detector system, for example as an optical and / or acoustic alarm signal. Alternatively or additionally, the alarm signal can also be passed on to a downstream alarm unit, for example as an electrical and / or electronic signal. Downstream alarm units in the sense of the invention can be, for example, control systems, but also rescue organizations, such as a fire brigade or the like. Comprehensive notification of the surroundings, in particular for example to initiate countermeasures against the flame event, can be made possible in this way.
Darüber hinaus kann bei einem erfindungsgemäßen Verfahren vorgesehen sein, dass die Schritte b) bis e) und/oder die Schritte b) sowie f) bis i) kontinuierlich oder zumindest im Wesentlichen kontinuierlich ausgeführt werden. Eine unterbrechungsfreie oder zumindest im Wesentlichen unterbrechungsfreie Überwachung des Detektionsbereichs auf ein Auftreten von Flammenereignissen außerhalb des Ausschlussbereichs kann auf diese Weise bereitgestellt werden. So kann insbesondere das Auswerten des Strahlungsdetektors in Schritt b) und das Durchführen der Erstauswertung und/oder der Zweitauswertung des zumindest einen Kameradetektors in den Schritten c), f) bzw. g) bevorzugt auch gleichzeitig und ebenfalls kontinuierlich oder zumindest im Wesentlichen kontinuierlich ausgeführt werden.In addition, it can be provided in a method according to the invention that steps b) to e) and / or steps b) and f) to i) are carried out continuously or at least essentially continuously. An uninterrupted or at least essentially uninterrupted monitoring of the detection area for the occurrence of flame events outside the exclusion area can be provided in this way. In particular, the evaluation of the radiation detector in step b) and the carrying out of the first evaluation and / or the second evaluation of the at least one camera detector in steps c), f) or g) can preferably also be carried out simultaneously and also continuously or at least essentially continuously ,
Darüber hinaus kann ein erfindungsgemäßes Verfahren dahin gehend ausgebildet sein, dass als Strahlungsdetektor ein Infrarotdetektor verwendet wird. Infrarotdetektoren sind besonders bevorzugte Strahlungsdetektoren, da Flammenereignisse zumeist deutlich erkennbare Wärmesignaturen und damit charakteristische Strahlungssignaturen im Infrarotbereich aufweisen. Mit Infrarotdetektoren können auch Kontrollmessungen in anderen Wellenlängenbereichen durchgeführt werden, um die Messgenauigkeit eines als Infrarotdetektor ausgebildeten Strahlungsdetektors zu verbessern. Darüber hinaus können Infrarotdetektoren auch zum Überprüfen von zeitlichen Veränderungen, wie beispielsweise einem Flackern oder einem Verändern einer Größe, des Flammenereignisses ausgebildet sein. Eine Messgenauigkeit des als Infrarotdetektor ausgebildeten Strahlungsdetektors kann dadurch weiter verbessert werden. Alternativ oder zusätzlich können auch andere Wellenlängenbereiche durch entsprechende spezielle Ausbildung des Strahlungsdetektors überwacht werden, beispielsweise um Flammenereignisse von Wasserstoffbränden besonders sicher zu erkennen.In addition, a method according to the invention can be designed such that an infrared detector is used as the radiation detector. Infrared detectors are particularly preferred radiation detectors, since flame events mostly have clearly recognizable heat signatures and thus characteristic radiation signatures in the infrared range. Control measurements in other wavelength ranges can also be carried out with infrared detectors in order to improve the measurement accuracy of a radiation detector designed as an infrared detector. In addition, infrared detectors can also be designed to check changes in time, such as flickering or changing a size, of the flame event. A measurement accuracy of the radiation detector designed as an infrared detector can thereby be further improved. As an alternative or in addition, other wavelength ranges can also be monitored by appropriate special training of the radiation detector, for example in order to detect flame events from hydrogen fires particularly reliably.
Auch kann ein erfindungsgemäßes Verfahren dahin gehend ausgebildet sein, dass als Kameradetektor eine VIS-Flammenkamera und/oder eine IR-Flammenkamera verwendet werden. Dies sind besonders bevorzugten Ausgestaltungsformen eines Kameradetektors, wobei eine VIS-Flammenkamera den Detektionsbereich im visuellen Spektralbereich, eine IR-Flammenkamera den Detektionsbereich im infraroten Spektralbereich überwacht. Flammenkameras sind insbesondere zum Durchführen einer Erstauswertung für ein schnelles Bereitstellen einer Kameraindikation, d. h., einem ersten Hinweis darauf, dass ein Flammenereignis vorhanden sein könnte, ausgebildet. Nachgeschaltet an die Kameraindikation erfolgt zumeist eine Bildverarbeitung als Zweitauswertung, insbesondere eine Bild-für-Bild-Analyse, durch die mit hoher Genauigkeit ein tatsächliches Vorhandensein eines Flammenereignisses erkannt werden kann. Flammenkameras können somit mit anderen Worten besonders schnell einen ersten Hinweis auf ein Flammenereignis liefern, wobei ein exaktes Erkennen eines Flammenereignisses mit geringer Fehlerquote durch eine nachgeschaltete Bildverarbeitung bereitgestellt werden kann.A method according to the invention can also be designed such that a VIS flame camera and / or an IR flame camera are used as the camera detector. These are particularly preferred embodiments of a camera detector, a VIS flame camera monitoring the detection range in the visual spectral range, an IR flame camera monitoring the detection range in the infrared spectral range. Flame cameras are designed in particular to carry out an initial evaluation for quickly providing a camera indication, ie, a first indication that a flame event could be present. Downstream of the camera indication there is usually an image processing as a second evaluation, in particular an image-by-image analysis, by means of which an actual presence of a flame event can be recognized with high accuracy. In other words, flame cameras can particularly quickly provide a first indication of a flame event, whereby an exact detection of a flame event with a low error rate can be provided by a subsequent image processing.
Besonders bevorzugt kann bei einem erfindungsgemäßen Verfahren vorgesehen sein, dass zumindest zwei Kameradetektoren verwendet werden, wobei für ein Detektieren eines Flammenereignisses in Schritt e) zumindest von einem der Kameradetektoren eine außerhalb des in Schritt a) festgelegten zumindest einen Ausschlussbereichs angeordnete Kameraindikation erkannt wird und/oder für ein Detektieren eines Flammenereignisses in Schritt h) zumindest von einem der Kameradetektoren ein außerhalb des in Schritt a) festgelegten zumindest einen Ausschlussbereichs angeordneten Kameraereignis erkannt wird. In dieser Ausgestaltungsform eines erfindungsgemäßen Verfahrens sind zumindest zwei Kameradetektoren eingesetzt, die insbesondere parallel und/oder unabhängig voneinander verwendet werden können. Dadurch, dass für ein Detektieren eines Flammenereignisses lediglich durch eine der beiden Kameradetektoren außerhalb des in Schritt a) festgelegten zumindest einen Ausschlussbereichs eine Kameraindikation und/oder ein Kameraereignis erkannt werden muss, kann eine weitere Verminderung von Fehlalarmen und/oder nicht detektierten Flammenereignissen bereitgestellt werden. Mit anderen Worten können die beiden Kameradetektoren als redundante Einheiten eingesetzt werden. Sobald zumindest eine der Kameradetektoren eine Kameraindikation bzw. ein Kameraereignis erkennt, wird ein Flammenereignis detektiert.In a method according to the invention, it can be particularly preferably provided that at least two camera detectors are used, wherein for detecting a flame event in step e) at least one of the camera detectors detects a camera indication arranged outside the at least one exclusion area defined in step a) and / or for the detection of a flame event in step h), at least one of the camera detectors detects a camera event arranged outside the at least one exclusion area defined in step a). In this embodiment of a method according to the invention, at least two camera detectors are used, which can be used in particular in parallel and / or independently of one another. As a result of the fact that a camera indication and / or a camera event only has to be detected by one of the two camera detectors outside the at least one exclusion area defined in step a), a further reduction in false alarms and / or undetected flame events can be provided. In other words, the two camera detectors can be used as redundant units. As soon as at least one of the camera detectors detects a camera indication or a camera event, a flame event is detected.
Auch kann ein erfindungsgemäßes Verfahren dahin gehend weiterentwickelt sein, dass zwei Kameradetektoren verwendet werden, wobei als erster Kameradetektor eine VIS-Flammenkamera und als zweiter Kameradetektor eine IR-Flammenkamera eingesetzt wird. In dieser besonders bevorzugten Ausgestaltungsform werden zwei verschiedene Flammenkameras als Kameradetektoren eingesetzt. Insbesondere sind die beiden Flammenkameras derart ausgebildet, dass sie zwei verschiedene Spektralbänder, das visuelle Spektralband und das infrarote Spektralband, überwachen. Eine weitere Verbesserung einer Detektionssicherheit eines Flammenereignisses im Detektionsbereich kann auf diese Weise bereitgestellt werden.A method according to the invention can also be further developed in such a way that two camera detectors are used, a VIS flame camera being used as the first camera detector and an IR flame camera being used as the second camera detector. In this particularly preferred embodiment, two different flame cameras are used as camera detectors. In particular, the two flame cameras are designed such that they monitor two different spectral bands, the visual spectral band and the infrared spectral band. A further improvement in the detection reliability of a flame event in the detection area can be provided in this way.
Gemäß einer weiteren Weiterentwicklung eines erfindungsgemäßen Verfahrens kann ferner vorgesehen sein, dass die Schritte c) bis e) erst für die VIS-Flammenkamera ausgeführt werden, wobei bei einem Fehlen einer in Schritt c) erkannten Kameraindikation der VIS-Flammenkamera die Schritte c) bis e) für die IR-Flammenkamera ausgeführt werden. Mit anderen Worten wird in dieser bevorzugten Ausgestaltungsform zuerst die VIS-Flammenkamera für ein Erkennen einer Kameraindikation ausgewertet und nur bei Fehlen einer erkannten Kameraindikation durch die VIS-Flammenkamera ein Einsatz der IR-Flammenkamera durchgeführt. Mit anderen Worten wird nach einem erkannten Strahlungsereignis durch den Strahlungsdetektor, der bevorzugt im Infrarotbereich arbeitet, die VIS-Flammenkamera zur Überprüfung eingesetzt, um möglichst früh bei der Durchführung eines erfindungsgemäßen Verfahrens zwei verschiedene Strahlungsbereiche bzw. Spektralbereiche bei der Detektion des Flammenereignisses mit einzubeziehen. Sollte durch die VIS-Flammenkamera keine Kameraindikation erkannt werden, kann durch den zusätzlichen Einsatz der IR-Flammenkamera eine mögliches fehlerhaftes Übersehen eines Flammenereignisses verhindert oder zumindest deutlich erschwert werden.According to a further development of a method according to the invention, it can further be provided that steps c) to e) are only carried out for the VIS flame camera, with steps c) to e being missing in the absence of a camera indication of the VIS flame camera recognized in step c) ) for the IR flame camera. In other words, in this preferred embodiment, the VIS flame camera is first evaluated for recognizing a camera indication and the IR flame camera is only used if the VIS flame camera does not recognize a recognized camera indication. In other words, after a radiation event has been detected by the radiation detector, which preferably works in the infrared range, the VIS flame camera is used for checking in order to include two different radiation ranges or spectral ranges as early as possible when carrying out a method according to the invention in the detection of the flame event. If the VIS flame camera does not detect a camera indication, the additional use of the IR flame camera can prevent or at least make it significantly more difficult to overlook a flame event.
Alternativ oder zusätzlich kann ein erfindungsgemäßes Verfahren dahin gehend weiterentwickelt sein, dass die Schritte f) bis g) erst für die VIS-Flammenkamera ausgeführt werden, wobei bei einem in Schritt g) erkannten Kameraereignis für die VIS-Flammenkamera die Schritte f) bis i) für die IR-Flammenkamera ausgeführt werden. In dieser Ausgestaltungsform eines erfindungsgemäßen Verfahrens wird berücksichtigt, dass die VIS-Flammenkamera zumeist eine höhere Fehlerquote, und damit eine Auslösung von Fehlalarmen, aufweist, als eine IR-Flammenkamera. In dieser Ausgestaltungsform eines erfindungsgemäßen Verfahrens kann daher eine Kontrolle der VIS-Flammenkamera durch die IR-Flammenkamera durchgeführt werden. Eine Sicherheit bei einem erkannten und detektierten Flammenereignis kann dadurch erhöht werden. Der Schritt h) eines erfindungsgemäßen Verfahrens, in dem eine Überprüfung des erkannten Kameraereignisses auf eine Anordnung innerhalb oder außerhalb des Ausschlussbereichs durchgeführt wird, kann auch für die VIS-Flammenkamera getrennt oder zusätzlich zusammen mit der IR-Flammenkamera bei einer einzigen Ausführung des Schritts h) durchgeführt werden.As an alternative or in addition, a method according to the invention can be further developed such that steps f) to g) are only carried out for the VIS flame camera, with steps f) to i) being carried out for a camera event recognized in step g) for the VIS flame camera for the IR flame camera. In this embodiment of a method according to the invention, it is taken into account that the VIS flame camera mostly has a higher error rate, and thus a triggering of false alarms, than an IR flame camera. In this embodiment of a method according to the invention, the VIS flame camera can therefore be checked by the IR flame camera. This can increase security in the case of a recognized and detected flame event. Step h) of a method according to the invention, in which a check of the recognized camera event for an arrangement within or outside the exclusion area is carried out, can also be carried out for the VIS flame camera separately or in addition together with the IR flame camera in a single execution of step h).
Darüber hinaus kann ein erfindungsgemäßes Verfahren alternativ dahingehend weiterentwickelt sein, dass die Schritte f) bis g) erst für die VIS-Flammenkamera ausgeführt werden, wobei bei einem in Schritt g) erkannten Kameraereignisses für die VIS-Flammenkamera die Schritte f), h) und i) für die IR-Flammenkamera ausgeführt werden, wobei in Schritt h) bei einem Vorliegen einer in Schritt f) erkannten Kameraindikation der IR-Flammenkamera eine Überprüfung durchgeführt wird, ob die Kameraindikation außerhalb des in Schritt a) festgelegten zumindest einen Ausschlussbereichs angeordnet ist. Auch in dieser Ausgestaltungsform eines erfindungsgemäßen Verfahrens wird berücksichtigt, dass die VIS-Flammenkamera zumeist eine höhere Fehlerquote aufweist, als eine IR-Flammenkamera. Auch in dieser Ausgestaltungsform eines erfindungsgemäßen Verfahrens kann daher eine Kontrolle der VIS-Flammenkamera durch die IR-Flammenkamera durchgeführt werden, wobei in dieser alternativen Ausgestaltungsform die Messungen der IR-Flammenkamera lediglich auf ein Vorhandensein einer Kameraindikation überprüft werden. Eine Sicherheit bei einem erkannten und detektierten Flammenereignis kann dadurch erhöht und gleichzeitig durch den Verzicht auf das Durchführen einer Zweitauswertung der IR-Flammenkamera die gesamte Durchführung eines erfindungsgemäßen Verfahrens beschleunigt werden.In addition, a method according to the invention can alternatively be further developed in such a way that steps f) to g) are only carried out for the VIS flame camera, with steps f), h) and in the case of a camera event recognized in step g) for the VIS flame camera i) are carried out for the IR flame camera, in step h) if there is a camera indication of the IR flame camera recognized in step f), a check is carried out as to whether the camera indication is arranged outside the at least one exclusion area defined in step a). In this embodiment of a method according to the invention, too, it is taken into account that the VIS flame camera usually has a higher error rate than an IR flame camera. In this embodiment of a method according to the invention, therefore, the VIS flame camera can be checked by the IR flame camera, in this alternative embodiment the measurements of the IR flame camera are only checked for the presence of a camera indication. Security in the case of a recognized and detected flame event can thereby be increased and, at the same time, the entire implementation of a method according to the invention can be accelerated by not having to carry out a second evaluation of the IR flame camera.
Ferner kann gemäß einer bevorzugten Weiterentwicklung eines erfindungsgemäßen Verfahren vorgesehen sein, dass in Schritt i) ein Flammenereignis detektiert wird, wenn ein VIS-Ort des Kameraereignisses der VIS-Flammenkamera und ein IR-Ort des Kameraereignisses der IR-Flammenkamera übereinstimmen oder zumindest im Wesentlichen übereinstimmen. Auf diese Weise kann vermieden werden, dass die beiden Flammenkameras Kameraereignisse erkennen, die an verschiedenen Positionen angeordnet sind. Ein Flammenereignis wird durch ein erfindungsgemäßes Verfahren in dieser Ausgestaltungsform nur dann erkannt, wenn beide Orte, sowohl der VIS-Ort als auch der IR-Ort, übereinstimmen. Eine weitere Verringerung einer Fehlerquote und dadurch eine Vermeidung und Verhinderung von Fehlalarmen durch fälschlich erkannte Flammenereignisse kann auf diese Weise bereitgestellt werden.Furthermore, according to a preferred further development of a method according to the invention, a flame event can be detected in step i) if a VIS location of the camera event of the VIS flame camera and an IR location of the camera event of the IR flame camera match or at least essentially match , In this way it can be avoided that the two flame cameras recognize camera events which are arranged at different positions. A flame event is only detected by a method according to the invention in this embodiment if both locations, both the VIS location and the IR location, match. Another In this way, it is possible to reduce an error rate and thereby avoid and prevent false alarms due to incorrectly recognized flame events.
Darüber hinaus kann ein erfindungsgemäßes Verfahren dahin gehend ausgebildet sein, dass Schritt f) erst für die VIS-Flammenkamera ausgeführt wird, wobei bei einem Fehlen der in Schritt f) erkannten Kameraindikation der VIS-Flammenkamera, die Schritte f) bis i) für die IR-Flammenkamera ausgeführt werden. Mit anderen Worten wird in dieser Ausgestaltungsform eines erfindungsgemäßen Verfahrens weder durch den Strahlungsdetektor noch durch die VIS-Flammenkamera ein Hinweis auf ein Vorhandensein eines Flammenereignisses generiert. Sollte dennoch durch die IR-Flammenkamera eine Kameraindikation und ein entsprechendes Kameraereignis detektiert werden, das außerhalb des Ausschlussbereichs liegt, wird auch in diesem Fall insgesamt ein Flammenereignis erkannt. Auch bei einem fehlerhaften Nichtdetektieren des Flammenereignisses durch den Strahlungsdetektor und die VIS-Flammenkamera kann somit eine sichere Detektion des Flammenereignisses durch ein erfindungsgemäßes Verfahren bereitgestellt werden.In addition, a method according to the invention can be designed such that step f) is only carried out for the VIS flame camera, with steps f) to i) for the IR if the camera indication of the VIS flame camera recognized in step f) is missing -Flame camera are running. In other words, in this embodiment of a method according to the invention, no indication of the presence of a flame event is generated either by the radiation detector or by the VIS flame camera. If a camera indication and a corresponding camera event that lies outside the exclusion range are nevertheless detected by the IR flame camera, a flame event is also recognized overall in this case. Even if the flame event is incorrectly detected by the radiation detector and the VIS flame camera, reliable detection of the flame event can thus be provided by a method according to the invention.
Gemäß einem zweiten Aspekt der Erfindung wird die Aufgabe gelöst durch ein Detektorsystem zum Detektieren eines Flammenereignisses, aufweisend einen Strahlungsdetektor und zumindest einen Kameradetektor zum Überwachen eines Detektionsbereichs auf ein Auftreten von Flammenereignissen. Ein erfindungsgemäßes Detektorsystem ist dadurch gekennzeichnet, dass das Detektorsystem zum Ausführen eines Verfahrens gemäß dem ersten Aspekt der Erfindung ausgebildet ist. Auf diese Weise bringt ein erfindungsgemäßes Detektorsystem sämtliche Vorteile mit sich, die ausführlich bereits in Verbindung mit einem Verfahren gemäß dem ersten Aspekt der Erfindung aufgeführt sind.According to a second aspect of the invention, the object is achieved by a detector system for detecting a flame event, comprising a radiation detector and at least one camera detector for monitoring a detection area for the occurrence of flame events. A detector system according to the invention is characterized in that the detector system is designed to carry out a method according to the first aspect of the invention. In this way, a detector system according to the invention brings with it all of the advantages which have already been listed in detail in connection with a method according to the first aspect of the invention.
Besonders bevorzugt kann bei einem erfindungsgemäßen Detektorsystem vorgesehen sein, dass der Strahlungsdetektor und der zumindest eine Kameradetektor in einem gemeinsamen Gehäuse angeordnet sind. Auf diese Weise kann eine besonders kompakte Ausgestaltungsform eines erfindungsgemäßen Detektorsystems bereitgestellt werden.In a detector system according to the invention, it can particularly preferably be provided that the radiation detector and the at least one camera detector are arranged in a common housing. To this In this way, a particularly compact embodiment of a detector system according to the invention can be provided.
Auch kann ein erfindungsgemäßes Detektorsystem dahin gehend weiterentwickelt sein, dass ein Strahlungsdetektionsbereich des Strahlungsdetektors und ein Kameradetektionsbereich des zumindest einen Kameradetektors deckungsgleich oder zumindest im Wesentlichen deckungsgleich ausgebildet sind. Ein Detektionsbereich des gesamten Detektorsystems ergibt sich insbesondere aus dem Überlapp des Strahlungsdetektionsbereichs des Strahlungsdetektors und der Kameradetektionsbereiche der eingesetzten Kameradetektoren. Dadurch, dass der Strahlungsdetektionsbereich und der Kameradetektionsbereich deckungsgleich oder zumindest im Wesentlichen deckungsgleich ausgebildet sind, kann ein besonders großer Detektionsbereich des gesamten Detektorsystems bereitgestellt werden. Insbesondere Bereiche, nicht von allen oder sogar nur von einem einzigen der eingesetzten Detektoren überwacht werden kann, können dadurch minimiert oder bevorzugt sogar gänzlich vermieden werden.A detector system according to the invention can also be developed in such a way that a radiation detection area of the radiation detector and a camera detection area of the at least one camera detector are congruent or at least essentially congruent. A detection area of the entire detector system results in particular from the overlap of the radiation detection area of the radiation detector and the camera detection areas of the camera detectors used. Because the radiation detection area and the camera detection area are congruent or at least essentially congruent, a particularly large detection area of the entire detector system can be provided. In particular, areas that cannot be monitored by all or even only a single one of the detectors used can be minimized or preferably even avoided entirely.
Wie oben beschrieben ist der Detektionsbereich des Detektorsystems im Sinne der Erfindung insbesondere durch den Überlapp der Detektionsbereiche der verwendeten Detektoren gebildet. Ein zusätzliches Auswerten von Messdaten der einzelnen Detektoren, die außerhalb dieses Überlappbereichs ermittelt werden, ist möglich. Alternativ zu einer Deckungsgleichheit kann beispielsweise der Strahlungsdetektionsbereich deutlich größer ausgebildet sein, als der Kameradetektionsbereich, welcher insbesondere an die geplanten Abflammungen angepasst ausgebildet sein kann. In diesem Fall wird der Strahlungsdetektor für die eigentliche Überwachung auf Flammenereignisse eingesetzt, wobei das erfindungsgemäße Detektorsystem beziehungsweise das erfindungsgemäße Verfahren ein Ausblenden der gewollten Abflammungen ermöglicht.As described above, the detection area of the detector system in the sense of the invention is formed in particular by the overlap of the detection areas of the detectors used. An additional evaluation of measurement data of the individual detectors, which are determined outside this overlap area, is possible. As an alternative to a congruence, the radiation detection area can, for example, be designed to be significantly larger than the camera detection area, which in particular can be designed to match the planned flames. In this case, the radiation detector is used for the actual monitoring for flame events, the detector system according to the invention or the method according to the invention making it possible to hide the desired flames.
Besonders bevorzugt kann ferner bei einem erfindungsgemäßen Detektorsystem vorgesehen sein, dass der Strahlungsdetektor als ein Infrarotdetektor und/oder der zumindest eine Kameradetektor als eine VIS-Flammenkamera und/oder als eine IR-Flammenkamera ausgebildet sind. Wie oben bereits beschrieben, stellen diese Detektoren besonders bevorzugte Ausgestaltungsformen eines Strahlungsdetektors bzw. eines Kameradetektors dar. Insbesondere kann das Detektorsystem sowohl einen Infrarotdetektor als auch eine VIS-Flammenkamera und zusätzlich eine IR-Flammenkamera aufweisen. Eine besonders sichere Detektion eines Flammenereignisses, die insbesondere besonders schnell durchgeführt werden kann, mit geringer Fehlerquote kann auf diese Weise bereitgestellt werden.In a detector system according to the invention, it can also be particularly preferred that the radiation detector is designed as an infrared detector and / or the at least one camera detector is designed as a VIS flame camera and / or as an IR flame camera. As already described above, these Detectors represent particularly preferred embodiments of a radiation detector or a camera detector. In particular, the detector system can have both an infrared detector and a VIS flame camera and additionally an IR flame camera. A particularly reliable detection of a flame event, which can be carried out particularly quickly, with a low error rate, can be provided in this way.
Weitere, die Erfindung verbessernde Maßnahmen, ergeben sich aus der nachfolgenden Beschreibung zu Ausführungsbeispielen der Erfindung, welche in den Figuren dargestellt sind. Sämtliche aus den Ansprüchen, der Beschreibung und den Zeichnungen hervorgehenden Merkmale und/oder Vorteile, einschließlich konstruktiver Einzelheiten und räumlicher Anordnungen, können sowohl für sich als auch in den verschiedenen Kombinationen, erfindungswesentlich sein. Elemente mit gleicher Funktion und Wirkungsweise sind in den Zeichnungen mit denselben Bezugszeichen versehen. Es zeigen schematisch:
Figur 1- eine erste Ausgestaltungsform eines erfindungsgemäßen Verfahrens,
Figur 2- eine zweite Ausgestaltungsform eines erfindungsgemäßen Verfahrens, und
- Figur 3
- ein erfindungsgemäßes Detektorsystem.
- Figure 1
- a first embodiment of a method according to the invention,
- Figure 2
- a second embodiment of a method according to the invention, and
- Figure 3
- an inventive detector system.
In den
Eine Abflammung 6 stellt ein gewolltes und/oder geplantes Flammenereignis dar, wobei bei einem Auftreten der Abflammung 6 insbesondere kein Flammenereignis 4 durch das Detektorsystem 1 erkannt werden soll. Dies kann dadurch bereitgestellt werden, dass in jeder Ausgestaltungsform eines erfindungsgemäßen Verfahrens in einem ersten Schritt a), in den
Im nächsten Schritt b), in
Im Folgenden wird die in
Sollte in Schritt c) bei der Erstauswertung 40 der VIS-Flammenkamera 22 keine Kameraindikation 41 erkannt werden, so wird, dargestellt im rechten Ast des in
Die in
Sollte, dargestellt im rechten Ast des erfindungsgemäßen Verfahrens in
Zusätzlich können sämtliche Schritte des erfindungsgemäßen Verfahrens, insbesondere die Schritte b) bis e) bzw. b) sowie f) bis i) kontinuierlich oder zumindest im Wesentlichen kontinuierlich ausgeführt werden. Zusammenfassend kann durch ein erfindungsgemäßes Detektorsystem 1 bzw. durch ein erfindungsgemäßes Verfahren eine besonders schnelle und insbesondere auch sichere und genaue Detektion eines Flammenereignisses 4 in einem Detektionsbereich 3 bereitgestellt werden, wobei insbesondere im Detektionsbereich 3 ein Ausschlussbereich 5 definiert sein kann, der von der Detektion durch das Detektorsystem 1 ausgenommen ist. Eine schnelle und gleichzeitig sichere Detektion von Flammenereignissen 4 auch in Bereichen, in denen beispielsweise Abflammungen 6 vorgesehen sind, kann auf diese Weise bereitgestellt werden.In addition, all steps of the method according to the invention, in particular steps b) to e) or b) and f) to i) can be carried out continuously or at least essentially continuously. In summary, a particularly rapid and in particular also safe and precise detection of a
- 11
- Detektorsystemdetector system
- 22
- Gehäusecasing
- 33
- Detektionsbereichdetection range
- 44
- Flammenereignisflames event
- 55
- Ausschlussbereichexclusion area
- 66
- Abflammungsingeing
- 77
- Alarmsignalalarm
- 1010
- Strahlungsdetektorradiation detector
- 1111
- StrahlungsdetektionsbereichRadiation detection area
- 1212
- Infrarotdetektorinfrared detector
- 2020
- Kameradetektorcamera detector
- 2121
- KameradetektionsbereichCamera detection range
- 2222
- VIS-FlammenkameraVIS flames camera
- 2323
- IR-FlammenkameraIR flame Camera
- 2424
- VIS-OrtVIS-site
- 2525
- IR-OrtIR site
- 3030
- Strahlungsereignisradiation event
- 4040
- Erstauswertunginitial evaluation
- 4141
- Kameraindikationcamera indication
- 4242
- Zweitauswertungsecond evaluation
- 4343
- Kameraereigniscamera event
- 5050
- ÜberprüfungVerification
Claims (19)
- Method for detecting a flame event (4) by means of a detector system (1), wherein the detector system (1) has a radiation detector (10) and at least one camera detector (20) and monitors a detection area (3) for the occurrence of flame events (4) by means of the radiation detector (10) and the at least one camera detector (20),a) comprising the following steps:
determining at least one exclusion area (5) in the detection area (3) of the detector system (1),b) evaluating the radiation detector (10) in order to identify a radiation event (30),characterized by the following steps:c) if a radiation event (30) identified in step b) is present, carrying out a first evaluation (40) of the at least one camera detector (20) in order to identify a camera indication (41),d) if a camera indication (41) identified in step c) is present, carrying out a check (50) in order to determine whether the camera indication (41) is arranged outside the at least one exclusion area (5) determined in step a), ande) if there is a positive result of the check (50) in step d), detecting a flame event (4) in the detection area (3) outside the at least one exclusion area (5). - Method according to Claim 1,
characterized in that
at least two camera detectors (20) are used, wherein, for the purpose of detecting a flame event (4) in step e), a camera indication (41) arranged outside the at least one exclusion area (5) determined in step a) is identified at least by one of the camera detectors (20). - Method according to Claim 2,
characterized in that
two camera detectors (20) are used, wherein a VIS flame camera (22) is used as the first camera detector (20) and an IR flame camera (23) is used as the second camera detector (20). - Method according to Claim 3,
characterized in that
steps c) to e) are first of all carried out for the VIS flame camera (22), wherein, in the absence of a camera indication (41) of the VIS flame camera (22) identified in step c), steps c) to e) are carried out for the IR flame camera (23). - Method according to one of the preceding claims,
characterized in that
an alarm signal (7) is output if a flame event (4) is detected in step e). - Method according to one of the preceding claims,
characterized in that
steps b) to e) are carried out continuously or at least substantially continuously. - Method according to one of the preceding claims,
characterized in that
a VIS flame camera (22) and/or an IR flame camera (23) is/are used as the camera detector (20). - Method according to one of the preceding claims,
characterized in that
the following steps are carried out in the absence of a radiation event (30) identified in step b):f) carrying out a first evaluation (40) of the at least one camera detector (20) in order to identify a camera indication (41), wherein a camera indication is identified if an indication of a flame event is identified in at least one image in the detection area,g) if a camera indication (41) identified in step f) is present, carrying out a second evaluation (42) of the at least one camera detector (20) in order to identify a camera event (43), wherein the second evaluation is a downstream image analysis,h) if a camera event (43) identified in step g) is present, carrying out a check (50) in order to determine whether the camera event (43) is arranged outside the at least one exclusion area (5) determined in step a), andi) if there is a positive result of the check (50) in step h), detecting a flame event (4) in the detection area (3) outside the at least one exclusion area (5). - Method according to Claim 8,
characterized in that
an alarm signal (7) is output if a flame event (4) is detected in step i). - Method according to either of Claims 8 and 9,
characterized in that
steps b) and f) to i) are carried out continuously or at least substantially continuously. - Method according to one of Claims 8 to 10,
characterized in that
at least two camera detectors (20) are used, wherein, for the purpose of detecting a flame event (4), a camera event (43) arranged outside the at least one exclusion area (5) determined in step a) is identified at least by one of the camera detectors (20) in step h). - Method according to one of Claims 8 to 11,
characterized in that
two camera detectors (20) are used, wherein a VIS flame camera (22) is used as the first camera detector (20) and an IR flame camera (23) is used as the second camera detector (20), and wherein steps f) to g) are first of all carried out for the VIS flame camera (22), wherein steps f) to i) are carried out for the IR flame camera (23) if a camera event (43) is identified for the VIS flame camera (22) in step g) . - Method according to one of Claims 8 to 12,
characterized in that
two camera detectors (20) are used, wherein a VIS flame camera (22) is used as the first camera detector (20) and an IR flame camera (23) is used as the second camera detector (20), and wherein steps f) to g) are first of all carried out for the VIS flame camera (22), wherein steps f), h) and i) are carried out for the IR flame camera (23) if a camera event (43) is identified for the VIS flame camera (22) in step g), wherein a check (50) is carried out in step h), if a camera indication (41) of the IR flame camera (23) identified in step f) is present, in order to determine whether the camera indication (41) is arranged outside the at least one exclusion area (5) determined in step a). - Method according to Claim 12 or 13,
characterized in that
a flame event (4) is detected in step i) if a VIS location (24) of the camera event (43) of the VIS flame camera (22) and an IR location (25) of the camera indication (41) and/or of the camera event (43) of the IR flame camera (23) correspond or at least substantially correspond. - Method according to Claim 8,
characterized in that
two camera detectors (20) are used, wherein a VIS flame camera (22) is used as the first camera detector (20) and an IR flame camera (23) is used as the second camera detector (20), and wherein step f) is first of all carried out for the VIS flame camera (22), wherein, in the absence of a camera indication (41) of the VIS flame camera (22) identified in step f), steps f) to i) are carried out for the IR flame camera (23). - Detector system (1) for detecting a flame event (4), having a radiation detector (10) and at least one camera detector (20) for monitoring a detection area (3) for the occurrence of flame events (4),
characterized in that
the detector system (1) is designed to carry out a method according to one of the preceding claims. - Detector system (1) according to Claim 16,
characterized in that
the radiation detector (10) and the at least one camera detector (20) are arranged in a common housing (2). - Detector system (1) according to Claim 16 or 17,
characterized in that
a radiation detection area (11) of the radiation detector (10) and a camera detection area (21) of the at least one camera detector (20) are congruent or are at least substantially congruent. - Detector system (1) according to one of Claims 16 to 18,
characterized in that
the radiation detector (10) is in the form of an IR detector and/or the at least one camera detector (20) is in the form of a VIS flame camera (22) and/or an IR flame camera (23).
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102017009680.5A DE102017009680A1 (en) | 2017-10-18 | 2017-10-18 | Method and detector system for detecting a flame event |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3474250A1 EP3474250A1 (en) | 2019-04-24 |
EP3474250B1 true EP3474250B1 (en) | 2020-02-26 |
Family
ID=63722169
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP18198091.3A Active EP3474250B1 (en) | 2017-10-18 | 2018-10-02 | Method and detector system for detecting a flame event |
Country Status (3)
Country | Link |
---|---|
US (1) | US10657785B2 (en) |
EP (1) | EP3474250B1 (en) |
DE (1) | DE102017009680A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2024005701A1 (en) * | 2022-06-30 | 2024-01-04 | Termisk Systemteknik I Sverige Ab | A system and method for fire detection |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20240184026A1 (en) * | 2022-12-01 | 2024-06-06 | Lindsey Firesense, Llc | Infrared imaging sensor with antireflective coated optics for fire detection and fire detection device including same |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5734335A (en) * | 1989-12-20 | 1998-03-31 | Finmeccanica S.P.A. | Forest surveillance and monitoring system for the early detection and reporting of forest fires |
US5375159A (en) | 1992-09-29 | 1994-12-20 | C & P Of Virginia | System and method for remote testing and protocol analysis of communication lines |
ATE340395T1 (en) * | 2000-02-07 | 2006-10-15 | Vsd Ltd | SMOKE AND FLAME DETECTION |
DE60203752T2 (en) * | 2001-02-14 | 2005-11-24 | Infrared Integrated Systems Ltd., Towcester | fire alarm |
US6696958B2 (en) | 2002-01-14 | 2004-02-24 | Rosemount Aerospace Inc. | Method of detecting a fire by IR image processing |
TWI264684B (en) | 2004-11-16 | 2006-10-21 | Univ Nat Kaohsiung Applied Sci | Fire detection method and system applying with image acquisition |
DE102008001383A1 (en) | 2008-04-25 | 2009-10-29 | Robert Bosch Gmbh | Detection device and method for detecting fires and / or fire features |
US20110304728A1 (en) * | 2010-06-11 | 2011-12-15 | Owrutsky Jeffrey C | Video-Enhanced Optical Detector |
DE102012213125A1 (en) * | 2012-07-26 | 2014-01-30 | Robert Bosch Gmbh | Fire control system |
-
2017
- 2017-10-18 DE DE102017009680.5A patent/DE102017009680A1/en not_active Withdrawn
-
2018
- 2018-10-02 EP EP18198091.3A patent/EP3474250B1/en active Active
- 2018-10-17 US US16/162,704 patent/US10657785B2/en not_active Expired - Fee Related
Non-Patent Citations (1)
Title |
---|
None * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2024005701A1 (en) * | 2022-06-30 | 2024-01-04 | Termisk Systemteknik I Sverige Ab | A system and method for fire detection |
Also Published As
Publication number | Publication date |
---|---|
US20190114892A1 (en) | 2019-04-18 |
US10657785B2 (en) | 2020-05-19 |
DE102017009680A1 (en) | 2019-04-18 |
EP3474250A1 (en) | 2019-04-24 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP2690611B1 (en) | Fire monitoring system | |
DE102008001391B4 (en) | Fire detection device and method for fire detection | |
DE102006057605A1 (en) | Method and device for monitoring a three-dimensional space area | |
EP2624228B1 (en) | Fire alarm with human-machine interface and method for controlling the fire alarm | |
EP3474250B1 (en) | Method and detector system for detecting a flame event | |
EP0107042A1 (en) | Infrared detector for spotting an intruder in an area | |
EP0984413A2 (en) | Method and system for automatic forest fire recognition | |
DE60203752T2 (en) | fire alarm | |
AT519472B1 (en) | External shot counter for small arms | |
EP2251847B1 (en) | Device and method for detecting flames with detectors | |
EP3591427B1 (en) | Missile alerter and a method for issuing a warning about a missile | |
WO2002028110A1 (en) | Method for controlling the functional capability of an optical detection device and optical detection device | |
EP3575666B1 (en) | Device for protecting a hazardous area of a system | |
DE3231025C2 (en) | Device for the identification of pulsed laser radiation | |
EP3333557B1 (en) | Infra-red optical system for missile warning and method for use of such a system | |
WO1997028521A1 (en) | Device for the production of an alarm and for surveillance of an area | |
EP1762995A1 (en) | Detection of smoke with a video camera | |
WO2016087202A1 (en) | Image processing by means of cross-correlation | |
EP2758948B1 (en) | Fire detector with sensor array | |
EP3839567A1 (en) | Missile warning and a method for issuing a warning about a missile | |
EP1300816A1 (en) | Method and system to detect fires in enclosed spaces | |
DE2140297C3 (en) | Device for detecting and indicating fire | |
EP1548677B1 (en) | Fire detection method and fire detection apparatus | |
WO2003102889A1 (en) | Fire detector and fire detection system | |
DE102021115139B4 (en) | Method for controlling a flight movement of an aircraft and aircraft |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION HAS BEEN PUBLISHED |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
AX | Request for extension of the european patent |
Extension state: BA ME |
|
17P | Request for examination filed |
Effective date: 20190327 |
|
RBV | Designated contracting states (corrected) |
Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: GRANT OF PATENT IS INTENDED |
|
INTG | Intention to grant announced |
Effective date: 20191015 |
|
GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE PATENT HAS BEEN GRANTED |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: FG4D Free format text: NOT ENGLISH |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: EP |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R096 Ref document number: 502018000837 Country of ref document: DE |
|
REG | Reference to a national code |
Ref country code: AT Ref legal event code: REF Ref document number: 1238574 Country of ref document: AT Kind code of ref document: T Effective date: 20200315 |
|
REG | Reference to a national code |
Ref country code: IE Ref legal event code: FG4D Free format text: LANGUAGE OF EP DOCUMENT: GERMAN |
|
REG | Reference to a national code |
Ref country code: NL Ref legal event code: FP |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: NO Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20200526 Ref country code: RS Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20200226 Ref country code: FI Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20200226 |
|
REG | Reference to a national code |
Ref country code: LT Ref legal event code: MG4D |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20200527 Ref country code: IS Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20200626 Ref country code: BG Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20200526 Ref country code: SE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20200226 Ref country code: LV Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20200226 Ref country code: HR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20200226 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: ES Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20200226 Ref country code: PT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20200719 Ref country code: SK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20200226 Ref country code: SM Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20200226 Ref country code: EE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20200226 Ref country code: LT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20200226 Ref country code: DK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20200226 Ref country code: RO Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20200226 Ref country code: CZ Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20200226 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R097 Ref document number: 502018000837 Country of ref document: DE |
|
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20200226 |
|
26N | No opposition filed |
Effective date: 20201127 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: PL Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20200226 Ref country code: SI Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20200226 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LU Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20201002 Ref country code: MC Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20200226 |
|
REG | Reference to a national code |
Ref country code: BE Ref legal event code: MM Effective date: 20201031 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: BE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20201031 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20201002 |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: TR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20200226 Ref country code: MT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20200226 Ref country code: CY Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20200226 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: MK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20200226 Ref country code: AL Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20200226 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LI Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20211031 Ref country code: CH Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20211031 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: NL Payment date: 20221021 Year of fee payment: 5 Ref country code: FR Payment date: 20221020 Year of fee payment: 5 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 20221024 Year of fee payment: 5 Ref country code: DE Payment date: 20221020 Year of fee payment: 5 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R119 Ref document number: 502018000837 Country of ref document: DE |
|
REG | Reference to a national code |
Ref country code: NL Ref legal event code: MM Effective date: 20231101 |
|
GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20231002 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20231002 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: NL Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20231101 |