WO2010003408A1 - Verfahren für die überwachung eines raumes mittels funksignale übertragender sensoren - Google Patents
Verfahren für die überwachung eines raumes mittels funksignale übertragender sensoren Download PDFInfo
- Publication number
- WO2010003408A1 WO2010003408A1 PCT/DE2009/000987 DE2009000987W WO2010003408A1 WO 2010003408 A1 WO2010003408 A1 WO 2010003408A1 DE 2009000987 W DE2009000987 W DE 2009000987W WO 2010003408 A1 WO2010003408 A1 WO 2010003408A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- sensors
- evaluation
- radio signals
- change
- space
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B13/00—Burglar, theft or intruder alarms
- G08B13/22—Electrical actuation
- G08B13/24—Electrical actuation by interference with electromagnetic field distribution
- G08B13/2491—Intrusion detection systems, i.e. where the body of an intruder causes the interference with the electromagnetic field
- G08B13/2494—Intrusion detection systems, i.e. where the body of an intruder causes the interference with the electromagnetic field by interference with electro-magnetic field distribution combined with other electrical sensor means, e.g. microwave detectors combined with other sensor means
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B19/00—Alarms responsive to two or more different undesired or abnormal conditions, e.g. burglary and fire, abnormal temperature and abnormal rate of flow
- G08B19/005—Alarms responsive to two or more different undesired or abnormal conditions, e.g. burglary and fire, abnormal temperature and abnormal rate of flow combined burglary and fire alarm systems
Definitions
- the invention relates to a method for monitoring a room by means of wirelessly communicating sensors.
- a variety of different sensors is used to monitor rooms. When a predetermined sensory threshold is exceeded, a reaction is triggered by the sensors. For example, this may be the control of an air conditioning system in temperature sensors to maintain a room temperature within a predetermined range.
- Smoke and gas detectors are used for the safety of a building and persons inside it. Such measuring systems regularly trigger an audible alarm when the concentration of smoke or gas has again exceeded a threshold.
- infrared or ultrasound sensors are often used, which, as motion detectors, detect a movement in the monitored space and thus a change in its spatial presence.
- areas to be monitored are highly structured, for example, very winding, displaced by furniture or the like, or are divided by Spanish walls
- the detection of movements in such rooms by the known motion detectors is only very limited possible, since they can only detect sections in such rooms. A variety of sensors would be necessary for complete monitoring.
- the thresholds are set very high in which natural movements occur, such as movements of bushes or trees in the wind or in which z. B. arise due to large temperature differences strong air currents. It is known, for example, that false alarms often occur in ultrasound systems in sun-drenched motor vehicles.
- the evaluation of the data determined by the sensors is usually done centrally in an evaluation device.
- the measured values are usually transmitted by cable, although temperature measurement results of an outdoor sensor, which are transmitted wirelessly in particular in the case of weather stations, are also known.
- the evaluation of the data is further limited mostly in the display of the measured values, if necessary. in the formation of means of similar data, for example, to obtain an average temperature of a space for the control of the air conditioner. It can be left undecided whether such an evaluation device is also suitable, in addition to mitzuverwalten example of temperature and measured values of smoke and gas detectors, a combination of the data determined by the sensors of different types, however, is not regularly.
- the object of the invention is to provide a method of room monitoring, with which complex-equipped or can be safely monitored for any change in their spatial presence, and that relies on easy-to-install sensors, can also be integrated in existing monitoring systems.
- the invention is based on a monitoring of a room by means of wirelessly communicating sensors, so that expensive cabling is not necessary. Due to this measure, the method according to the invention can also be used in already existing monitoring systems.
- a light control can turn on the light, or if only windows and / or doors are open and possibly move. According to specifications made can then be triggered by the evaluation a response to such events.
- the more sensors are also wirelessly interconnected and have networked sensors via an evaluation device for determining the signal strengths.
- an evaluation device for determining the signal strengths As a result, a plurality of radio links is created, the disturbance of which enables a localization of changes in the spatial presence of the monitored space. The number of such radio links is increased again when the sensors are bidirectionally networked.
- the sensors are fixedly installed, a comparatively simple evaluation of the change in the field strength and / or a change in the received power, for example, of a transmitted measured value signal can preferably take place. Again, it is again thought that then a certain bandwidth of the received power or the field strength is given, so that only after a threshold is exceeded, a corresponding reaction takes place.
- the wireless communication takes place on the basis of cost and availability of technologies known ISM bands, in particular at 868 MHz, 2.4 GHz and / or 5.8 GHz.
- the method according to the invention offers the advantage that changes in the measured values of sensors and the evaluation of the signal strength of received radio signals of a change in the spatial presence of the monitored space are determined.
- information can be obtained from various information that would otherwise not be directly accessible.
- Such a sensor fusion allows the combination of, for example, ultrasonic sensors, temperature sensors, noise sensors or the like, from which a room occupancy can be detected in its entirety.
- sensor 1 may monitor the temperature
- sensor 2 may be a gas detector
- sensor 3 may be an ultrasonic sensor
- sensor 4 may only emit radio signals.
- the sensors 1 to 4 are arranged stationarily in a space 5 to be monitored.
- the sensors 1 to 4 are bidirectionally and wirelessly networked with each other, indicated by the Double arrows between the sensors 1 to 4. Accordingly, the sensors 1 to 4 have both a transmitting and a receiving device for wireless communication.
- each of the sensors 1 to 4 has an evaluation device, not shown, for evaluating the signal strength of the radio signals emanating from the other three sensors. If an evaluation device is still assigned to the sensors 1 to 4, a reaction to a change in the signal strength of the received radio signals due to a change in the spatial presence of the monitored space 5 by such a detecting sensor, for example a message to a central processing unit 6, then if necessary. triggers an alarm.
- the central unit 6 will also have transmitting and receiving devices and communicate bidirectionally with the sensors 1 to 4 wirelessly, so that a multiplicity of further radio links are set up and a close-meshed network is created.
- the central unit 6 will receive and evaluate the measured value signals of the sensors 1 to 3, so here the time course of the temperature, which is measured by the sensor 1, the smoke or gas concentration, measured by the sensor 2 and movements, determined by the Sensor 3.
- the central unit 6 will also monitor the radio signals of the sensors 1 to 4 received by it and evaluate them for changes in the signal strength. Such is also done by each of the sensors 1 to 4 as nodes of the radio network. Become a sensor significant changes in the signal strength of the other sensors and the central unit 6 detected, this is passed to the central unit 6, which will then trigger a response, for example in the form of an alarm or the like.
- the advantage here is that changes in the measured values of the sensors 1 to 4 can also be taken into account by such a central unit 6, for example in the event of a fire due to the increase in the temperature measured by the sensor 1 and the increasing gas concentration measured by the sensor 2 extremely slight changes in the signal strengths of the radio signals due to, for example, flames and rising flue gases.
- such a central unit 6 also enables a self-learning, adaptive evaluation of all data, so that the system can readily recognize that changes in the spatial presence of the monitored space have taken place only to a normal extent.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Alarm Systems (AREA)
- Fire Alarms (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE112009001665T DE112009001665A5 (de) | 2008-07-08 | 2009-07-07 | Verfahren für die Überwachung eines Raumes mittels Funksignale übertragender Sensoren |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200810031923 DE102008031923A1 (de) | 2008-07-08 | 2008-07-08 | Verfahren für die Überwachung eines Raums |
DE102008031923.6 | 2008-07-08 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2010003408A1 true WO2010003408A1 (de) | 2010-01-14 |
WO2010003408A8 WO2010003408A8 (de) | 2010-04-15 |
Family
ID=41346083
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE2009/000987 WO2010003408A1 (de) | 2008-07-08 | 2009-07-07 | Verfahren für die überwachung eines raumes mittels funksignale übertragender sensoren |
Country Status (2)
Country | Link |
---|---|
DE (2) | DE102008031923A1 (de) |
WO (1) | WO2010003408A1 (de) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2013120527A1 (de) * | 2012-02-16 | 2013-08-22 | Siemens Aktiengesellschaft | Funknetzanordnung für ein bauwerk |
DE102013015222A1 (de) | 2013-09-13 | 2015-03-19 | Er Systems Sa | Verfahren und Vorrichtung zur Lokalisierung von Objekten |
CN104678770B (zh) * | 2015-01-23 | 2019-03-01 | 小米科技有限责任公司 | 位移事件检测方法和*** |
DE102015121230A1 (de) * | 2015-12-07 | 2017-06-08 | Deutsche Telekom Ag | Verfahren und System zum Detektieren von Bewegungen von Objekten |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4035070A1 (de) * | 1990-11-05 | 1992-05-07 | Norbert Schaaf | Funkalarmanlage |
US5257007A (en) * | 1991-10-01 | 1993-10-26 | M-Tec Corporation | Portable security system |
US6150936A (en) * | 1996-05-20 | 2000-11-21 | Pittway Corporation | Method and system for analyzing received signal strength |
US6288640B1 (en) * | 1995-12-15 | 2001-09-11 | GAGNON ANDRé | Open transmission line intrusion detection system using frequency spectrum analysis |
US20050055568A1 (en) * | 2003-08-12 | 2005-03-10 | Agrawala Ashok K. | Method and system for providing physical security in an area of interest |
US20080018464A1 (en) * | 2006-07-12 | 2008-01-24 | Van Doorn Eric | Perimeter security system |
-
2008
- 2008-07-08 DE DE200810031923 patent/DE102008031923A1/de not_active Withdrawn
-
2009
- 2009-07-07 WO PCT/DE2009/000987 patent/WO2010003408A1/de active Application Filing
- 2009-07-07 DE DE112009001665T patent/DE112009001665A5/de not_active Withdrawn
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4035070A1 (de) * | 1990-11-05 | 1992-05-07 | Norbert Schaaf | Funkalarmanlage |
US5257007A (en) * | 1991-10-01 | 1993-10-26 | M-Tec Corporation | Portable security system |
US6288640B1 (en) * | 1995-12-15 | 2001-09-11 | GAGNON ANDRé | Open transmission line intrusion detection system using frequency spectrum analysis |
US6150936A (en) * | 1996-05-20 | 2000-11-21 | Pittway Corporation | Method and system for analyzing received signal strength |
US20050055568A1 (en) * | 2003-08-12 | 2005-03-10 | Agrawala Ashok K. | Method and system for providing physical security in an area of interest |
US20080018464A1 (en) * | 2006-07-12 | 2008-01-24 | Van Doorn Eric | Perimeter security system |
Also Published As
Publication number | Publication date |
---|---|
WO2010003408A8 (de) | 2010-04-15 |
DE112009001665A5 (de) | 2011-04-07 |
DE102008031923A1 (de) | 2010-01-14 |
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