EP1548677A1 - Verfahren und Einrichtung zur Branderkennung - Google Patents
Verfahren und Einrichtung zur Branderkennung Download PDFInfo
- Publication number
- EP1548677A1 EP1548677A1 EP04450236A EP04450236A EP1548677A1 EP 1548677 A1 EP1548677 A1 EP 1548677A1 EP 04450236 A EP04450236 A EP 04450236A EP 04450236 A EP04450236 A EP 04450236A EP 1548677 A1 EP1548677 A1 EP 1548677A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- fire
- alarm
- images
- pixels
- camera
- 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.)
- Granted
Links
- 238000001514 detection method Methods 0.000 title claims description 49
- 238000012545 processing Methods 0.000 claims abstract description 31
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims abstract description 16
- 239000011777 magnesium Substances 0.000 claims abstract description 16
- 229910052749 magnesium Inorganic materials 0.000 claims abstract description 15
- 238000000034 method Methods 0.000 claims description 26
- 230000001960 triggered effect Effects 0.000 claims description 17
- 239000000779 smoke Substances 0.000 claims description 10
- 238000012217 deletion Methods 0.000 claims description 5
- 230000037430 deletion Effects 0.000 claims description 5
- 230000004044 response Effects 0.000 claims description 4
- 230000006870 function Effects 0.000 claims 2
- 125000004122 cyclic group Chemical group 0.000 claims 1
- 238000004020 luminiscence type Methods 0.000 abstract 1
- 229910000861 Mg alloy Inorganic materials 0.000 description 4
- 230000004913 activation Effects 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 238000011002 quantification Methods 0.000 description 2
- 230000035484 reaction time Effects 0.000 description 2
- 230000002123 temporal effect Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 244000144980 herd Species 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 230000000873 masking effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000001454 recorded image Methods 0.000 description 1
- 230000011664 signaling Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000011144 upstream manufacturing 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
Definitions
- the invention relates to a method for fire detection, in particular for the detection of magnesium fires, wherein the Danger area with at least one camera pictures with a certain Resolution and a specific refresh rate recorded which images are processed and at the Processing resulting values with predefined reference values compared with the reference values an alarm is triggered.
- the invention further relates to a device for fire detection, in particular for the detection of magnesium fires, with at least one camera for taking pictures of the danger area with a certain resolution and a specific one Refresh rate, a memory for storing images, a device for processing the images, and a device to trigger an alarm.
- Fire alarm which on the optical or chemical detection of smoke, have the disadvantage that an alarm or firefighting relatively late becomes possible.
- have fire alarm which the resulting Flames detect a shorter reaction time.
- such fire detectors are not as reliable as on the one hand extraneous light influences cause false alarms and on the other hand certain flames are not detected as such can.
- US 5,937,077 A describes a method for fire detection, taking pictures with a camera in the infrared range and to eliminate sources of error only one very narrow infrared wavelength range further processed by 1140 nm becomes.
- the images are used to detect possible sources of fire further processed and characteristic of flames Compared pictures and evaluated accordingly. If the rating exceeds a certain threshold, the trigger takes place an alarm.
- US 2002/0030608 A1 describes a device for Fire detection, in particular in the cargo holds of aircraft, where with cameras images are taken in the infrared range. From the analyzed images histograms are created and after contiguous areas of pixels with certain brightness values searched. From certain changes in the histogram and the number of pixels of the contiguous areas can be deduced fire herd.
- US 2003/0141980 A1 shows a method for the detection of Smoke and fire, recorded at the digitalbider and with each other be compared.
- the algorithm for the detection of fire filters movements in the frequency domain between 1.25 and 4 Hz and detects the flickering a flame characteristic changes.
- WO 01/97193 A2 describes a method and a device for fire detection of the specified type, in which a Number of pictures taken over time is analyzed and the data fed to a Fourier transform and a certain frequency range for the Flickering of a flame is characteristic, accordingly is analyzed.
- a Number of pictures taken over time is analyzed and the data fed to a Fourier transform and a certain frequency range for the Flickering of a flame is characteristic, accordingly is analyzed.
- the computational effort and thus the required Time for a reliable detection of the flame relative high.
- WO 01/24131 A2 shows a further fire detection algorithm, in particular on the detection of flames, like them occur during the combustion of gasoline is turned off. Also thereby temporal courses of pictures are correspondingly analyzed, which takes a relatively long time.
- DE 295 02 831 U1 shows a fire alarm and Control system in which a certain danger area is captured optically and the captured image with stored Images that correspond to fire or smoke is compared.
- this system is very prone to false alarms.
- the object of the present invention is therefore in the Creation of a method above, by which as quickly and reliably as possible the fire or its cause, such as. a flying sparks or an arc can be detected can.
- the effort should be as low as possible, so that through the required low computing power a quick response is possible. Disadvantages of known methods should be avoided or be reduced.
- Another object of the present invention is the creation of an above-mentioned device for fire detection, in particular for the detection of magnesium fires or their cause, which is as simple and inexpensive is and reliable and rapid detection of a Brandes enabled.
- the first object of the invention is achieved by an above mentioned method, wherein the camera, a recorded background image representing fire-free situation and save, those pixels from the other Processing in which the pixels of the Background image a predefined brightness value (MaskLevel) and to form a luminance histogram from the current picture the number of pixels in Depending on Helligskeits Symposiumen be determined, further the number of pixels in all brightness ranges above one predefined brightness value (VerifyLevel), which is on fire can be summed up, and finally the Alarm is triggered when this sum exceeds the predefined reference value (FireLevel).
- the inventive method is characterized by the fact that by capturing the Background image detected in a fire-free state areas which cause false alarms due to their brightness could be excluded from further processing.
- These areas can, for example, light sources within the detected by the camera danger area, reflections od.
- These areas can, for example, light sources within the detected by the camera danger area, reflections od.
- the camera images in the infrared range, preferably in the wavelength range below 850 nm added.
- the filtering of visible light with one wavelength Above 850 nm, with appropriate optical filters, which are preceded by the camera, or by means of electronic filter, which depends on the selected frequency range are coordinated.
- the amount exceeding the stored reference value recorded and alerting depending on this level is carried out.
- a gradation of alerting in Dependence of the number of those pixels with a brightness value above the defined brightness value closing on fire can be done. For example, in a particular high number of pixels, which is highly likely to the emergence of a fire, immediately an alarm the fire department of a corresponding place in the factory or even a suitable extinguishing system can be activated automatically, whereas, if the reference value is slightly exceeded, only an advance warning can be made.
- the alarm is triggered when additional or Alternatively to the above-mentioned alerting at least one more Fire detection device, for example a smoke detection device, emits an alarm signal.
- at least one more Fire detection device for example a smoke detection device
- the alarm is triggered when additional or Alternatively to the above-mentioned alerting at least one more Fire detection device, for example a smoke detection device, emits an alarm signal.
- the second object of the invention is achieved by an above-mentioned Device for fire detection, in particular for detection of magnesium fires, solved, with the memory to Saving a wallpaper representing a fire-free situation is formed, and the means for processing the images to recognize those pixels of the Background image, which has a predefined brightness value exceed, is trained, and further a device for Exclude these pixels of the current images from processing is provided.
- a device for Exclude these pixels of the current images from processing is provided.
- Such a device is through characterized and enabled a relatively simple structure rapid detection of a fire, especially magnesium fire, already during the formation of sparks or arcs.
- the at least one camera may be wireless with the processing device be connected. This will give you the flexibility and at most also increased security.
- fades can be used to hide certain areas the danger area covered by the camera, which can be designed in various ways.
- To capture the images in the infrared range is at least a camera associated with an infrared filter, preferably the wavelength range ⁇ 850 nm passes.
- the device for processing the pictures and the device to exclude the pixels of the current images from editing is preferably formed by a computer.
- the calculator by a Computer a microprocessor or a microcontroller formed be.
- the invention relates to a device for logging the temporal History of processed images provided.
- the logging can be done on a disk or on paper.
- a further feature of the invention are several Cameras provided, all with the processing device are connected, so the alarm depending on the pictures all cameras can be triggered.
- a logical "AND" -link can be used All camera signals are made, leaving an alarm only is triggered when all cameras detect images, which close to fire.
- a logical "OR” connection of the camera signals take place, so that the Alarm is already triggered when already a camera Signal provides, which indicates fire. additionally also weightings of the individual camera signals can be made which are adapted to the respective circumstances.
- another fire detection device for example an aspiratory fire detection device be provided, which connected to the processing device is so the alarm also depends on at least another fire detection device can be triggered. Consequently can, as already mentioned above, a combination of signals several fire detection devices take place.
- At least one extinguishing device provided with the means for triggering the alarm connected is. This can essentially simultaneously or shortly after the triggering of an alarm, the extinguishing device is activated and the fire was already erased shortly after its creation become.
- FIG. 1 shows a schematic flow diagram of an embodiment of the method according to the invention for fire detection, in particular for the detection of magnesium fires, wherein at least one camera 1 records images of a region of interest in which a fire can occur.
- a processing machine 10 which processes a workpiece 11, in particular a workpiece made of magnesium or a magnesium alloy.
- step 100 the signal of each camera 1 is stored and, according to block 101, luminance histograms are created.
- block 102 is used to quantify the number of pixels which can be indicative of fire and exceed a predefined reference value n R , and depending on this, issue a corresponding alarm.
- n R If the number of pixels is below the reference value n R , no message is given in block 103, if the number of pixels is in a high range above the reference value n R , according to block 104, for example, an automatic alerting of the fire brigade or the automatic activation of a deletion device. If the number of pixels which are above the predefined reference value n R lies in a middle range, then, for example, according to block 105, only a local alarm or pre-alarm occurs, so that corresponding steps can be set on-site. In addition, logging of the logging may occur according to block 106.
- Fig. 2 shows an example of a background image in which certain pixels which have a predefined brightness value (MaskLevel) are to be identified and identified by a further processing (hatched).
- MoskLevel a predefined brightness value
- Fig. 3 shows an example of a luminance histogram (see block 101 in Fig. 1) of a current image, wherein the brightness is divided from 0% (black) to 100% (white) into individual regions. In the example shown, the areas are divided into 5% sections of the brightness. In practice, a much finer subdivision will take place.
- the luminance histogram now shows the number of pixels depending on the respective brightness range.
- the fire detection method according to the invention now selects all values of the luminance histogram which lie above a defined brightness value (VerifyLevel) L V , which is for example 75%, and could indicate fire. Now, a quantification (see block 102 in FIG.
- n 1 , n 2 , n 3 , n 4 of the pixels in all brightness ranges is performed above this predefined brightness value L V.
- the pixels are summed accordingly (n 1 + n 2 + n 3 + n 4 ) and compared to a predefined reference value (Fire Level) n R. If the predefined reference value n R is exceeded, an alarm is triggered. In this case, a gradation of the alarm can be done in such a way that when exceeding a predefined reference value n R1 only a pre-alarm is triggered, and when exceeding a higher predefined reference value n R2, a main alarm, possibly with activation of a deletion is made. Below the reference value n R1 there is no alarm (corresponding to block 103 in FIG. 1).
- FIG. 4 shows a block diagram of an embodiment of the device according to the invention for detecting fire with at least one camera 1, which is connected to a device 2 for processing the images.
- This connection between the at least one camera 1 and the processing device 2 can also be wireless.
- the memory 3 is designed for storing a background image representing a fire-free situation, and the device 2 for processing the images for recognizing those pixels of the background image which exceed a predefined brightness value, and means for excluding these pixels of the current images from the Processing provided.
- apertures 5 for masking certain areas and filters 6, for example an infrared filter, may be arranged upstream of each camera 1.
- a device 7 for logging the time course of the processed images may also be provided.
- the memory 3 or a separate memory also contains the brightness values (mask level) predefined before activation of the device, the predefined brightness values (VerifyLevel L V ), which can be based on fire, and the predefined reference values (Fire level n R ) stored. These reference values are determined and saved individually before activation.
- the signals of all cameras 1 are supplied to the processing device 2. After quantification, a corresponding signaling is sent to the device 4 for triggering an alarm. According to arrow VA only a pre-alarm, according to arrow A is a normal alarm.
- At least one further fire detection device 8 for example a smoke detection device, may be provided, which is also connected to the device 4 for triggering an alarm.
- a further fire detection device 8 for example a smoke detection device, may be provided, which is also connected to the device 4 for triggering an alarm.
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Fire-Detection Mechanisms (AREA)
- Fire Alarms (AREA)
Abstract
Description
Claims (19)
- Verfahren zur Branderkennung, insbesondere zur Erkennung von Magnesiumbränden, wobei vom Gefahrenbereich mit zumindest einer Kamera Bilder mit einer bestimmten Auflösung und einer bestimmten Wiederholfrequenz aufgenommen werden, die Bilder verarbeitet werden und bei der Verarbeitung resultierende Werte mit vordefinierten Referenzwerten verglichen werden, und bei Überschreitung der Referenzwerte ein Alarm ausgelöst wird, dadurch gekennzeichnet, dass mit der Kamera ein, eine brandfreie Situation repräsentierendes Hintergrundbild aufgenommen und gespeichert wird, dass jene Pixel von der weiteren Verarbeitung ausgeschlossen werden, bei welchen die Pixel des Hintergrundbildes einen vordefinierten Helligkeitswert (MaskLevel) überschreiten, dass zur Bildung eines Luminanz-Histogramms aus dem aktuellen Bild die Anzahl der Pixel in Abhängigkeit von Helligkeitsbereichen ermittelt werden, dass die Anzahl der Pixel in allen Helligkeitsbereichen über einem vordefinierten Helligkeitswert (VerifyLevel), welche auf Feuer schließen lassen können, summiert werden, und dass der Alarm ausgelöst wird, wenn diese Summe den vordefinierten Referenzwert (FireLevel) überschreitet.
- Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass mit der Kamera Bilder im Infrarotbereich, vorzugsweise im Wellenlängenbereich unterhalb 850 nm, aufgenommen werden.
- Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass Bereiche innerhalb des erfassten Bildes festgelegt und mechanisch oder elektronisch ausgeblendet werden.
- Verfahren nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass in zyklischen Abständen ein, eine brandfreie Situation repräsentierendes Hintergrundbild aufgenommen und abgespeichert wird.
- Verfahren nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass die Höhe der Überschreitung des vordefinierten Referenzwertes (FireLevel) erfasst und die Alarmierung in Abhängigkeit dieser Höhe durchgeführt wird.
- Verfahren nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass die Bildwiederholfrequenz mindestens 10 Hz beträgt.
- Verfahren nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass im Wesentlichen gleichzeitig mit bzw. kurz nach der Alarmierung eine Löscheinrichtung aktiviert wird.
- Verfahren nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass der Alarm ausgelöst wird, wenn zusätzlich oder alternativ dazu zumindest eine weitere Branderkennungseinrichtung, beispielsweise eine Raucherkennungseinrichtung, ein Alarmsignal abgibt.
- Verfahren nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, dass die resultierenden Werte mehrerer Kameras miteinander verknüpft werden und der Alarm in Abhängigkeit der resultierenden Werte aller Kameras ausgelöst wird.
- Einrichtung zur Branderkennung, insbesondere zur Erkennung von Magnesiumbränden, mit zumindest einer Kamera (1) zur Aufnahme von Bildern vom Gefahrenbereich mit einer bestimmten Auflösung und einer bestimmten Wiederholfrequenz, einem Speicher (3) zum Speichern von Bildern, einer Einrichtung (2) zur Verarbeitung der Bilder, und einer Einrichtung (4) zur Auslösung eines Alarmes, dadurch gekennzeichnet, dass der Speicher (3) zum Speichern eines, eine brandfreie Situation repräsentierendes Hintergrundbildes ausgebildet ist, und dass die Einrichtung (2) zur Verarbeitung der Bilder zur Erkennung jener Pixel des Hintergrundbildes, welche einen vordefinierten Helligkeitswert (MaskLevel) überschreiten, ausgebildet ist, und dass eine Einrichtung zum Ausschließen dieser Pixel der aktuellen Bilder von der Verarbeitung vorgesehen ist.
- Einrichtung nach Anspruch 10, dadurch gekennzeichnet, dass die zumindest eine Kamera (1) drahtlos mit der Verarbeitungseinrichtung (2) verbunden ist.
- Einrichtung nach Anspruch 10 oder 11, dadurch gekennzeichnet, dass Blenden (5) zum Ausblenden bestimmter Bereiche vorgesehen sind.
- Einrichtung nach einem der Ansprüche 10 bis 12, dadurch gekennzeichnet, dass der zumindest einen Kamera (1) ein Infrarotfilter (6), zugeordnet ist, der vorzugsweise den Wellenlängenbereich < 850 nm durchlässt.
- Einrichtung nach einem der Ansprüche 10 bis 13, dadurch gekennzeichnet, dass der zumindest einen Kamera (1) ein elektronisches Filter zugeordnet ist, welches vorzugsweise den Wellenlängenbereich < 850 nm durchlässt.
- Einrichtung nach einem der Ansprüche 10 bis 14, dadurch gekennzeichnet, dass die Einrichtung (2) zur Verarbeitung der Bilder und die Einrichtung zum Ausschließen der Pixel der aktuellen Bilder von der Verarbeitung durch einen Rechner gebildet ist.
- Einrichtung nach einem der Ansprüche 10 bis 15, dadurch gekennzeichnet, dass eine Einrichtung (7) zur Protokollierung des zeitlichen Verlaufs der verarbeiteten Bilder vorgesehen ist.
- Einrichtung nach einem der Ansprüche 10 bis 16, dadurch gekennzeichnet, dass mehrere Kameras (1) vorgesehen sind, welche mit der Verarbeitungseinrichtung (2) verbunden sind, so dass der Alarm in Abhängigkeit der Bilder aller Kameras (1) auslösbar ist.
- Einrichtung nach Anspruch 10 bis 17, dadurch gekennzeichnet, dass eine weitere Branderkennungsvorrichtung (8) beispielsweise eine Raucherkennungsvorrichtung vorgesehen ist, welche mit der Verarbeitungseinrichtung (2) verbunden ist, so dass der Alarm auch in Abhängigkeit der zumindest einen weiteren Branderkennungsvorrichtung (8) auslösbar ist.
- Einrichtung nach einem der Ansprüche 10 bis 18, dadurch gekennzeichnet, dass eine Löscheinrichtung (9) vorgesehen ist, welche mit der Einrichtung (4) zur Auslösung des Alarmes verbunden ist.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT20652003 | 2003-12-22 | ||
AT0206503A AT414055B (de) | 2003-12-22 | 2003-12-22 | Verfahren und einrichtung zur branderkennung |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1548677A1 true EP1548677A1 (de) | 2005-06-29 |
EP1548677B1 EP1548677B1 (de) | 2008-04-09 |
Family
ID=34528589
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP04450236A Not-in-force EP1548677B1 (de) | 2003-12-22 | 2004-12-22 | Verfahren und Einrichtung zur Branderkennung |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1548677B1 (de) |
AT (2) | AT414055B (de) |
DE (1) | DE502004006764D1 (de) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108194145A (zh) * | 2018-03-15 | 2018-06-22 | 中国矿业大学(北京) | 基于红外图像的矿井水灾报警*** |
CN108252741A (zh) * | 2018-03-15 | 2018-07-06 | 中国矿业大学(北京) | 基于红外图像的采煤工作面水灾报警*** |
CN108457699A (zh) * | 2018-03-15 | 2018-08-28 | 中国矿业大学(北京) | 基于红外图像的掘进工作面水灾报警*** |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6184792B1 (en) * | 2000-04-19 | 2001-02-06 | George Privalov | Early fire detection method and apparatus |
US20020135490A1 (en) * | 2001-03-09 | 2002-09-26 | Vidair Aktiengesellschaft | Method and device for detecting smoke and/or fire in rooms |
US20030141980A1 (en) * | 2000-02-07 | 2003-07-31 | Moore Ian Frederick | Smoke and flame detection |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03182185A (ja) * | 1989-12-11 | 1991-08-08 | Fujitsu Ltd | 赤外線監視システム |
US5937077A (en) * | 1996-04-25 | 1999-08-10 | General Monitors, Incorporated | Imaging flame detection system |
US6529132B2 (en) * | 1998-02-27 | 2003-03-04 | Societe Industrielle D'avation Latecoere | Device for monitoring an enclosure, in particular the hold of an aircraft |
DE19840873A1 (de) * | 1998-09-01 | 2000-03-09 | Deutsch Zentr Luft & Raumfahrt | Verfahren und Vorrichtung zur automatischen Waldbranderkennung |
CN1190759C (zh) * | 2000-12-28 | 2005-02-23 | 西门子建筑技术公司 | 视频烟雾检测*** |
-
2003
- 2003-12-22 AT AT0206503A patent/AT414055B/de not_active IP Right Cessation
-
2004
- 2004-12-22 DE DE502004006764T patent/DE502004006764D1/de active Active
- 2004-12-22 EP EP04450236A patent/EP1548677B1/de not_active Not-in-force
- 2004-12-22 AT AT04450236T patent/ATE391976T1/de active
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20030141980A1 (en) * | 2000-02-07 | 2003-07-31 | Moore Ian Frederick | Smoke and flame detection |
US6184792B1 (en) * | 2000-04-19 | 2001-02-06 | George Privalov | Early fire detection method and apparatus |
US20020135490A1 (en) * | 2001-03-09 | 2002-09-26 | Vidair Aktiengesellschaft | Method and device for detecting smoke and/or fire in rooms |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108194145A (zh) * | 2018-03-15 | 2018-06-22 | 中国矿业大学(北京) | 基于红外图像的矿井水灾报警*** |
CN108252741A (zh) * | 2018-03-15 | 2018-07-06 | 中国矿业大学(北京) | 基于红外图像的采煤工作面水灾报警*** |
CN108457699A (zh) * | 2018-03-15 | 2018-08-28 | 中国矿业大学(北京) | 基于红外图像的掘进工作面水灾报警*** |
CN108252741B (zh) * | 2018-03-15 | 2023-04-18 | 中国矿业大学(北京) | 基于红外图像的采煤工作面水灾报警*** |
CN108457699B (zh) * | 2018-03-15 | 2023-04-18 | 中国矿业大学(北京) | 基于红外图像的掘进工作面水灾报警*** |
CN108194145B (zh) * | 2018-03-15 | 2023-04-18 | 中国矿业大学(北京) | 基于红外图像的矿井水灾报警*** |
Also Published As
Publication number | Publication date |
---|---|
EP1548677B1 (de) | 2008-04-09 |
AT414055B (de) | 2006-08-15 |
ATE391976T1 (de) | 2008-04-15 |
ATA20652003A (de) | 2005-11-15 |
DE502004006764D1 (de) | 2008-05-21 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE102008001391B4 (de) | Brandmeldervorrichtung sowie Verfahren zur Branddetektion | |
EP0984413B1 (de) | Verfahren und Vorrichtung zur automatischen Waldbranderkennung | |
EP2690611B1 (de) | Brandüberwachungssystem | |
DE19934171B4 (de) | Filtersystem und -verfahren | |
WO2008037293A1 (de) | Detektion von rauch mit einer videokamera | |
EP1281166A1 (de) | Bildgebender brandmelder | |
DE4430016C2 (de) | Bewegungsmelder und ein Verfahren zur Bewegungsmeldung | |
EP1346330B1 (de) | Video-rauchdetektionssystem | |
EP3501018B1 (de) | Präsenzdetektor unbewegter objekte | |
EP1548677B1 (de) | Verfahren und Einrichtung zur Branderkennung | |
DE102019207711A1 (de) | Verfahren und Vorrichtung zur Detektion von Rauch | |
DE60319346T2 (de) | Sensor mit erkennung von verdeckungen | |
EP3591427B1 (de) | Flugkörperwarner und ein verfahren zum warnen vor einem flugkörper | |
DE102009028212A1 (de) | Verfahren zum Überwachen eines Bereichs | |
EP3474250B1 (de) | Verfahren und detektorsystem zum detektieren eines flammenereignisses | |
DE69313739T2 (de) | Rauchdetektierungsvorrichtung für Feueralarm | |
DE102016222134A1 (de) | Videoanalyseeinrichtung für eine Überwachungsvorrichtung und Verfahren zur Erzeugung eines Einzelbildes | |
DE102013220553A1 (de) | Raucherkennungsvorrichtung, Verfahren zur Detektion von mindestens einem Rauchdetektionsmerkmal sowie Computerprogramm | |
DE102004034908A1 (de) | Rauchmeldesystem | |
EP1300816A1 (de) | Verfahren und System zur Erkennung von Bränden in Räumen | |
DE19641000A1 (de) | Verfahren und Anordnung zur automatischen Erkennung der Anzahl von Personen in einer Personenschleuse | |
DE102019134813A1 (de) | Ereignis-Überwachung in einem räumlichen Bereich | |
WO2003102889A1 (de) | Brandmelder und brandmeldeanlage | |
EP1762994A1 (de) | Intelligente Überwachungskamera | |
DE4200340C2 (de) | Vorrichtung zum selektiven Feuererfassen und Auslösen eines Löschvorgangs |
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 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR |
|
AX | Request for extension of the european patent |
Extension state: AL BA HR LV MK YU |
|
17P | Request for examination filed |
Effective date: 20051222 |
|
AKX | Designation fees paid |
Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR |
|
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: WAGNER AUSTRIA GMBH |
|
GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK 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 Ref country code: CH Ref legal event code: NV Representative=s name: KELLER & PARTNER PATENTANWAELTE AG |
|
REG | Reference to a national code |
Ref country code: IE Ref legal event code: FG4D Free format text: LANGUAGE OF EP DOCUMENT: GERMAN |
|
REF | Corresponds to: |
Ref document number: 502004006764 Country of ref document: DE Date of ref document: 20080521 Kind code of ref document: P |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
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: 20080409 |
|
NLV1 | Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act | ||
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
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: 20080709 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: 20080409 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: 20080909 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: 20080720 Ref country code: NL 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: 20080409 |
|
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: 20080409 |
|
REG | Reference to a national code |
Ref country code: IE Ref legal event code: FD4D |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
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: 20080809 |
|
EN | Fr: translation not filed | ||
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
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: 20080409 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: 20080409 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: 20080709 Ref country code: IE 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: 20080409 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: 20080409 |
|
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: 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: 20080409 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: 20080409 |
|
26N | No opposition filed |
Effective date: 20090112 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR 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: 20090130 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: 20080409 |
|
BERE | Be: lapsed |
Owner name: WAGNER AUSTRIA GMBH Effective date: 20081231 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: MC Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20081231 |
|
GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20081222 |
|
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: 20080409 |
|
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: 20081231 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: 20080409 |
|
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: 20081222 |
|
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: 20081222 Ref country code: HU 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: 20081010 |
|
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: 20080409 |
|
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: 20080710 |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PCAR Free format text: NEW ADDRESS: EIGERSTRASSE 2 POSTFACH, 3000 BERN 14 (CH) |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20151210 Year of fee payment: 12 Ref country code: CH Payment date: 20151221 Year of fee payment: 12 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: AT Payment date: 20151222 Year of fee payment: 12 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R119 Ref document number: 502004006764 Country of ref document: DE |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
REG | Reference to a national code |
Ref country code: AT Ref legal event code: MM01 Ref document number: 391976 Country of ref document: AT Kind code of ref document: T Effective date: 20161222 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: CH Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20161231 Ref country code: AT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20161222 Ref country code: LI Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20161231 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20170701 |