CN201247505Y - Wireless sensing network node for compositely detecting smoke temperature in fire monitoring system - Google Patents
Wireless sensing network node for compositely detecting smoke temperature in fire monitoring system Download PDFInfo
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- CN201247505Y CN201247505Y CNU200820184935XU CN200820184935U CN201247505Y CN 201247505 Y CN201247505 Y CN 201247505Y CN U200820184935X U CNU200820184935X U CN U200820184935XU CN 200820184935 U CN200820184935 U CN 200820184935U CN 201247505 Y CN201247505 Y CN 201247505Y
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Abstract
A fume temperature composite detecting wireless sensing network node in a fire monitoring system is characterized by comprising a fume temperature composite detecting sensor module, a data processing module and a radio frequency module; the fume temperature composite detecting sensor module comprises a temperature sensor module and a fume detection module and is used for collecting temperature data and fume data which are controlled and read by an embedded micro-processor; the data processing module is used for judging the scope of detection data by the embedded micro-processor, the detection data within the normal scope is sent to a base station by the radio frequency module in a certain interval time, and temperature and fume information beyond the normal scope is sent to the base station by the radio frequency module on a real time basis; and the radio frequency module is used for receiving data signals from the embedded micro-processor and sending the data signals to the base station in a radio frequency manner. The utility model carries out data transmission in a wireless manner; the arrangement of wires is not required in the monitoring system; and buildings can not be damaged due to the installation of a fire fighting system.
Description
Technical field
The utility model relates to fire characteristic parameters of temperature and smog composite sensing device, a kind of smoke temperature compound detection device that is applied in the fire hazard monitoring system of more specifically saying so.
Background technology
Traditional fire detection technology mainly contains temperature-sensitive and sense cigarette dual mode, and the concentration change by testing environment variation of temperature and smoke particle has judged whether that fire takes place respectively, and the technology of photoelectric smoke commonly used and heat detection fire is relative ripe.Combined type smoke-temperature sensing fire detector is monitor temperature and two fire characteristic parameters of smoke particle simultaneously, have improved the reliability of detection, are the fire detection technologies of at present popular in the world Multifunction high reliability.Along with computing machine and development of Communication Technique, fire detection technology is detected by single-point and develops into system monitoring, but for many years, early fire detection and warning for buildings, what automatic fire alarm system was continued to use always is the cable network mode, by various circuits control point and control center is interconnected, and is covered with in various buildings as the circuit of cobweb, and in some special building places such as ancient building, wired fire detection system is improper or out of use at all.
Ancient building mostly is wooden structures, even if masonry structure, the wind and rain baptism of experiencing 1,100 itself is very fragile, and any loss that fire caused all may be immeasurable in the scenic spots and historical sites.Wired automatic fire alarm system owing to have a large amount of pre-pipe layings and threading in pipe work, has increased construction cost in process of construction, also prolonged the construction period, the more important thing is and can cause artificial destruction to ancient building.The wireless sensing network technology develops rapidly in recent years, but has the wireless sensing network system of significant advantage not having ripe correlation technique aspect the detection of buildings in all many-sides such as dependable performance, easy to install and use, low costs as a kind of.Multiple wired fire detection technology is combined with wireless sensor network technology, and making up the smoke temperature compound detection wireless sensing device network node that is applied to fire hazard monitoring system is one of most important element task of building the distributed wireless fire protection alarm system.
The utility model content
The utility model is for avoiding above-mentioned existing in prior technology weak point, a kind of have data acquisition and data-transformation facility are provided, automatically the temperature and the smog of its surrounding environment are surveyed, simultaneously, portion can directly carry out pre-service to data within it, and be to carry out smoke temperature compound detection wireless sensing network node in the fire hazard monitoring system of data transmission with Wireless transmission mode, with this node deployment in the zone that will monitor, a plurality of nodes are set up wireless network by the self-organization mode, form quick and easy for installation in conjunction with host computer, installation cost is low, the wireless fire disaster real time monitoring network that installation rate is fast.
The utility model technical solution problem adopts following technical scheme:
The design feature of smoke temperature compound detection wireless sensing network node is to have in the utility model fire hazard monitoring system:
One smoke temperature compound detection sensor assembly is made of temperature sensor module and smoke detection module, collecting temperature data and smog data, and by embedded microprocessor control with read;
One data processing module is to judge detecting the data in-scope with embedded microprocessor, and the detection data in the normal range send to the base station by radio-frequency module with an interlude; The temperature of super normal range and smog information are sent to the base station by radio-frequency module in real time;
One radio-frequency module, reception sends to the base station from the data-signal of embedded microprocessor and with radio frequency.
The utility model design feature also is:
Described smoke detection module constitutes the indoor chamber of smog optical detection by optical detection darkroom and the optics labyrinth that is positioned at periphery, optical detection darkroom; In the indoor chamber of described optical detection, become angle that infrared-emitting diode and infrared receiving diode are set respectively greater than 90 degree with axis; The infrared light of described infrared-emitting diode emission arrives infrared receiving diode after the smoke particle scattering in the indoor chamber of optical detection, be smoke detection signal with the output signal that strengthens with smokescope on the described infrared receiving diode.
Described temperature sensor module adopts Temperature Humidity Sensor chip SHT11, be connected respectively to the corresponding pin of embedded microprocessor with described sensor chip SHT11 serial line interface clock line SCK and serial line interface data line DATA pin, temperature survey and the data read control signal of Temperature Humidity Sensor chip SHT11 is provided by described embedded microprocessor.
The utility model node is used for being deployed in a large number each monitoring point in the monitoring section, forms the network system of the self-organization of a multi-hop, the perceptive object-fire information in perception collaboratively, collection and the processing network's coverage area by wireless communication mode.The intranodal embedded microprocessor sends detected superscalar data temperature and smog information to base station by radio-frequency module immediately.In the base station, include embedded microprocessor and external radio-frequency module thereof, reception is from the packet of each detection node, determine the fire characteristic parameter of corresponding position according to the ID of node separately, pass through the fire recognizer by comprehensive smog of embedded microprocessor and temperature data, judge that the relevant position has or not the generation of fire.With can move corresponding background software on the host computer that the base station links to each other, reproduce to realize fire monitoring district management and virtual scene.
Compared with the prior art, the utility model beneficial effect is embodied in:
1, the utility model adopts wireless mode to carry out data transmission, need not wiring in the monitoring system, can not damage buildings because of the installation fire-fighting system causes;
2, the utility model is modular design, and device is simple, and cost is low, and is easy for installation.
3, the utility model adopts low power dissipation design, has prolonged the battery life cycle, and the serviceable life of node is longer;
Description of drawings
Fig. 1 the utility model wireless sensor network node structured flowchart.
Fig. 2 the utility model smoke temperature compound detection sensor module structure block diagram.
Fig. 3 the utility model photoelectric type smoke detection cell structure figure.
Fig. 4 the utility model optics labyrinth structure synoptic diagram.
Fig. 5 the utility model wireless sensor network fire hazard monitoring system structural representation.
Below pass through embodiment, and in conjunction with the accompanying drawings the utility model is further detailed.
Embodiment
Referring to Fig. 1, in the present embodiment, the node setting comprises:
One smoke temperature compound detection sensor assembly is made of temperature sensor module and smoke detection module, collecting temperature data and smog data, and by embedded microprocessor control with read; Adopt the temperature sensor module and the photoelectric type smoke detection module of small size, low-power consumption.
One data processing module is to judge detecting the data in-scope with embedded microprocessor, and the detection data in the normal range send to the base station by radio-frequency module with an interlude; The temperature of super normal range and smog information are sent to the base station by radio-frequency module in real time; The base station includes embedded microprocessor and external radio-frequency module thereof, reception is from the packet of each detection node, determine the fire characteristic parameter of corresponding position according to the ID of node separately, pass through the fire recognizer by comprehensive smog of embedded microprocessor and temperature data, judge that the relevant position has or not the generation of fire.
Data processing in the present embodiment adopts intranodal embedded microprocessor Atmega128, eight, high-performance, low-power consumption; Adopt RISC reduced instruction structure set, its instruction set mostly is one-cycle instruction greatly, but high-speed cruising.In 3V when power supply,, the typical power down electric current of Atmega128 is less than 1uA, low-voltage, low-power consumption, high-performance.
One radio-frequency module, reception sends to the base station from the data-signal of embedded microprocessor and with radio frequency.
Radio communication in the present embodiment works in the 2.4GHz frequency range, radio communication partly adopt CC2420 radio frequency chip CC2420 be Chipcon company release first meet the radio-frequency (RF) transceiver of 2.4GHz IEEE802.15.4 standard.It is based on SmartRF 03 technology of Chipcon company, make with 0.18um CMOS technology, only need few external component, stable performance and power consumption are extremely low, its selectivity and susceptibility index have surpassed the requirement of IEEE802.15.4 standard, can guarantee the validity and the reliability of short haul connection.
Referring to Fig. 2, temperature sensor module adopts Temperature Humidity Sensor chip SHT11, be connected respectively to the corresponding pin of embedded microprocessor with sensor chip SHT11 serial line interface clock line SCK and serial line interface data line DATA pin, temperature survey and the data read control signal of Temperature Humidity Sensor chip SHT11 is provided by described embedded microprocessor.V0 is the smoke signal output terminal, and Vi is an infrared-emitting diode control pin, and VCC is the power supply signal input end.
Referring to Fig. 3, the smoke detection module constitutes the indoor chamber of smog optical detection by optical detection darkroom 1 and the optics labyrinth 2 that is positioned at 1 periphery, optical detection darkroom in the present embodiment; In the indoor chamber of optical detection, become angle that infrared-emitting diode 4 and infrared receiving diode 5 are set respectively greater than 90 degree with axis; The infrared light that infrared-emitting diode 4 is subjected to the driving emission of input signal Vi arrives infrared receiving diode after the smoke particle scattering in the indoor chamber of optical detection, infrared receiving diode 5 receives that scattered beam produces smog current signal V0, and signal is given embedded microprocessor after amplifying; After doing analog to digital conversion, treated and identification is exported fire alarm signal after satisfying certain condition in conjunction with temperature signal, and promptly extremely going up the output signal that strengthens with smokescope with infrared reception two is smoke detection signal; The infrared light that infrared-emitting diode 4 sends is under the situation that non smoke exists, because the resistance light action in darkroom, light can not be injected infrared receiving diode 5, the output of receiving element no signal.
For realizing the requirement of low-power consumption, infrared-emitting diode adopts infrared pulse light, the I/O pin output narrow pulse signal Vi of embedded microprocessor, control infrared-emitting diode emission infrared pulse light.The power supply of sensor assembly provides by the Vcc pin.
Referring to Fig. 4, Z-shaped light-blocking member 3 is adopted in optics labyrinth 2, can weaken the influence of ambient light to greatest extent.It also forms the smog labyrinth simultaneously, and smoke particle flows into easily on the one hand, is difficult for relatively after cigarette enters on the other hand flowing out, to reduce the influence of extraneous air-flow.Be with fly net outside the optics labyrinth and enter the optical detection chamber, but do not hinder entering of smoke particle to prevent mosquito.Z-shaped light-blocking member also can make water vapor compositions such as steam or mist be difficult to enter in the optical detection darkroom, only is condensed on the peripheral surface and fly net.
Referring to Fig. 5, when the utility model specifically is applied in fire hazard monitoring system, need in the monitored area, set each probe node is set respectively on the coordinate position, probe node constitutes by the self-organization mode and builds up star or tree-shaped wireless senser network, system's setting also comprises base station and host computer, the node here is the compound point type fire detector of cigarette temperature, realization is monitored automatically to the temperature and the smog of its surrounding environment, and the raw data that detects is done pre-service at intranodal, can intercom mutually between the adjacent node, and routing function is arranged; Utilize the wireless multi-hop communication technology,, Monitoring Data is sent to the base station by other network node transfer.
Set each the signal base station on the coordinate position in the monitored area, the base station can probe node, also is the bridge that connects each probe node and host computer, constitutes the ad-hoc wireless communication network of multi-hop on the one hand between the radio-frequency module of base station and the probe node.The base station utilizes serial communication protocol or Ethernet that the Monitoring Data of each wireless fire disaster probe node is transferred to host computer and does further processing on the other hand.
Operation corresponding background process software on the host computer, by the Monitoring Data of fire characteristic parameter is handled, whether breaking out of fire provides early warning to the monitored area to the fire decision-making technic of monitored area to utilize the combination of many criterions, have fire to take place in case judge the monitored area, daemon software also will be made location and demonstration to the fire scene.
Structure setting in the present embodiment can make systematic technical indicator reach spatial discrimination and be not less than 50 meters less than 1 meter, single-hop communication distance sighting distance, and the detection response time was less than 20 seconds.
Claims (4)
1, smoke temperature compound detection wireless sensing network node in the fire hazard monitoring system is characterized in that having:
One smoke temperature compound detection sensor assembly is made of temperature sensor module and smoke detection module, collecting temperature data and smog data, and by embedded microprocessor control with read;
One data processing module is to judge detecting the data in-scope with embedded microprocessor, and the detection data time at certain intervals in the normal range sends to the base station by radio-frequency module; The temperature of super normal range and smog information are sent to the base station by radio-frequency module in real time;
One radio-frequency module, reception sends to the base station from the data-signal of embedded microprocessor and with radio frequency.
2, smoke temperature compound detection wireless sensing network node in the fire hazard monitoring system according to claim 1, it is characterized in that described temperature sensor module adopts Temperature Humidity Sensor chip SHT11, be connected respectively to the corresponding pin of embedded microprocessor with described sensor chip SHT11 serial line interface clock line SCK and serial line interface data line DATA pin, temperature survey and the data read control signal of Temperature Humidity Sensor chip SHT11 is provided by described embedded microprocessor.
3, smoke temperature compound detection wireless sensing network node in the fire hazard monitoring system according to claim 1 is characterized in that described smoke detection module is by optical detection darkroom (1) be positioned at peripheral optics labyrinth (2), optical detection darkroom (1) and constitute the indoor chamber of smog optical detection; In the indoor chamber of described optical detection, become angle that infrared-emitting diode (4) and infrared receiving diode (5) are set respectively greater than 90 degree with axis; The infrared light of described infrared-emitting diode (4) emission arrives infrared receiving diode (5) after smoke particle scattering in the indoor chamber of optical detection, going up the output signal that strengthens with smokescope with described infrared reception two utmost points (5) is smoke detection signal.
4, smoke temperature compound detection wireless sensing network node in the fire hazard monitoring system according to claim 3 is characterized in that described optics labyrinth (2) is set to Z-shaped light-blocking member (3).
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| CNU200820184935XU CN201247505Y (en) | 2008-08-22 | 2008-08-22 | Wireless sensing network node for compositely detecting smoke temperature in fire monitoring system |
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| CNU200820184935XU CN201247505Y (en) | 2008-08-22 | 2008-08-22 | Wireless sensing network node for compositely detecting smoke temperature in fire monitoring system |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101917211A (en) * | 2010-07-27 | 2010-12-15 | 上海中为智能机器人有限公司 | Mine downhole intelligent wireless monitoring and positioning system base station |
| CN101937216A (en) * | 2010-07-27 | 2011-01-05 | 上海中为智能机器人有限公司 | Mine underground intelligent wireless monitoring and positioning system |
| CN101666812B (en) * | 2009-09-28 | 2011-06-15 | 李惠 | Radio acceleration strain temperature data collecting system based on solar energy |
| CN101763704B (en) * | 2009-12-28 | 2012-07-04 | 余博贺 | Intelligent home fire-fighting detection and alarm system and control method thereof |
| CN103049976A (en) * | 2012-11-30 | 2013-04-17 | 浙江工商大学 | Multi-parameter fire detection node based on wireless sensor network |
| CN108510697A (en) * | 2018-04-17 | 2018-09-07 | 芜湖岭上信息科技有限公司 | One kind being suitable for combination type fire detector used in a variety of fields |
-
2008
- 2008-08-22 CN CNU200820184935XU patent/CN201247505Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101666812B (en) * | 2009-09-28 | 2011-06-15 | 李惠 | Radio acceleration strain temperature data collecting system based on solar energy |
| CN101763704B (en) * | 2009-12-28 | 2012-07-04 | 余博贺 | Intelligent home fire-fighting detection and alarm system and control method thereof |
| CN101917211A (en) * | 2010-07-27 | 2010-12-15 | 上海中为智能机器人有限公司 | Mine downhole intelligent wireless monitoring and positioning system base station |
| CN101937216A (en) * | 2010-07-27 | 2011-01-05 | 上海中为智能机器人有限公司 | Mine underground intelligent wireless monitoring and positioning system |
| CN101937216B (en) * | 2010-07-27 | 2012-08-08 | 上海中为智能机器人有限公司 | Mine underground intelligent wireless monitoring and positioning system |
| CN101917211B (en) * | 2010-07-27 | 2013-04-10 | 上海中为智能机器人有限公司 | Mine downhole intelligent wireless monitoring and positioning system base station |
| CN103049976A (en) * | 2012-11-30 | 2013-04-17 | 浙江工商大学 | Multi-parameter fire detection node based on wireless sensor network |
| CN108510697A (en) * | 2018-04-17 | 2018-09-07 | 芜湖岭上信息科技有限公司 | One kind being suitable for combination type fire detector used in a variety of fields |
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| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090527 Termination date: 20110822 |