CN202632460U - Wireless energy-saving compound fire hazard detector - Google Patents
Wireless energy-saving compound fire hazard detector Download PDFInfo
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- CN202632460U CN202632460U CN2012201133609U CN201220113360U CN202632460U CN 202632460 U CN202632460 U CN 202632460U CN 2012201133609 U CN2012201133609 U CN 2012201133609U CN 201220113360 U CN201220113360 U CN 201220113360U CN 202632460 U CN202632460 U CN 202632460U
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Abstract
The utility model relates to a wireless energy-saving compound fire hazard detector. The detector comprises seven large portions of a center control module, a timer module, a power supply module, a temperature-sensitive module, a smoke-sensitive module, a wireless transmission module and an acousto-optic alarm module. According to the utility model, the wireless energy-saving compound fire hazard detector can be applied as an independent fire hazard detector and applied to a fire hazard detection system established through a wireless network. Under the precondition that the fire hazard alarm accuracy degree of the compound detector is effectively raised, the usage life of the detector is prolonged employing an energy saving algorithm and an energy saving circuit. Under the condition without a fire hazard alarm, the temperature-sensitive module and the smoke-sensitive module are started by time-sharing; when a working detection module detects a fire hazard signal, another detection module is started; and once two detection modules detect a fire hazard signal simultaneously, the center control module controls the acousto-optic alarm module to emit an alarm signal. The fire alarm signal is sent out under a networked state.
Description
Technical field
The utility model relates to wireless temperature-sensitive sense smoke composite type fire detector, particularly based on the wireless temperature-sensitive sense smoke composite type fire detector of energy-saving design.
Background technology
Development along with microelectric technique; Be limited to the single-sensor fire detector and very easily report, fail to report phenomenon by mistake; Composite type fire detector becomes the focus of research gradually, and has entered among people's the life, such as JTF-GOM-GST601 combined type cigarette temperature detector.Traditional wiring type fire detector very easily causes detector to use because of line interruption or other reasons, has seriously limited the application places of detector, therefore, and the self-powered preferred option that addresses this problem that become of radio communication and detector.Yet for some special places, changing battery is the thing of comparison difficulty, and electric quantity consumption finishes and means that detector can't work.Therefore, need energy-saving scheme reasonable in design, to prolong the serviceable life of detector.
Texas Instrument (Texas Instruments) is in its photo-electric flue gas detector design based on low-power consumption MSP430F2012 chip; The effective energy-saving scheme has been proposed: under the normal mode of operation; The every 8s of detector detects infrared signal, has judged whether that flue gas exists.In non-sample phase, close operational amplifier and infrared light circuit, microprocessor chip is in holding state.After reporting to the police for the first time, the SI becomes 4s; The second warning post-sampling becomes 1s at interval; If detector is reported to the police for continuous three times, then send alerting signal.Power unit adopts 2 joint AAA powered battery, and through calculating, under normal mode of operation, its average consumed cur-rent is merely 2.0 μ A/s.
The patent No. is the wireless smoke detector that the United States Patent (USP) of US6084522A is based on temperature sensitivity.Detector adopts photoelectric sensor to survey the flue gas signal, and thermistor detecting temperature signal is reported to the police and status signal sends through wireless network.On power saving, device is provided with timer, is divided into dormant stage and working stage.Dormant stage, detector does not have any operation; Working stage, detector sensor is all opened, and status signal is sent.The time interval in two stages is 10s.In patent, the author mentions, and this time interval can be regulated as required.Yet based on energy-conservation consideration, this time interval should be provided with higher value, and the bigger time interval causes failing to report the generation of phenomenon most probably.
More than the design of two kinds of energy-saving schemes, all be to be prerequisite with the alarm time of sacrificing detector, cause delayed alarm most probably or fail to report phenomenon and cause fire rescue untimely, cause heavy losses.
Summary of the invention
The utility model purpose provides a kind of energy-conservation, pin-point accuracy, the wireless energy saving composite fire detector of response fast, and this detector can work alone, and also can join in the wireless network, through the wireless network transmissions fire signal.The utility model provides a kind of wireless energy saving composite fire detector, comprises Central Control Module, timer module, power module, temperature-sensitive module, sense cigarette module, wireless transport module and sound and light alarm module; It is characterized in that: each module of power module and other links to each other; Timer module links to each other with Central Control Module; Each module of Central Control Module and other links to each other; The temperature-sensitive module links to each other with Central Control Module; Sense cigarette module links to each other with Central Control Module; Wireless transport module links to each other with Central Control Module; The sound and light alarm module links to each other with Central Control Module.
To achieve these goals, the utility model main modular is formed as shown in Figure 1, comprises Central Control Module 1, timer module 2, power module 3, temperature-sensitive module 4, sense cigarette module 5, wireless transport module 6, sound and light alarm module 7.Wherein, the sound and light alarm module comprises fire alarm and low electric weight warning.The mode that the utility model adopts temperature-sensitive, sense cigarette to combine improves the warning accuracy.Under the alarm free state, by Central Control Module 1 control temperature-sensitive module 4 and the 5 unlatching work in turn of sense cigarette module, timer module 2 is responsible for clocking capability.Detector module (4 or 5) in work is when detecting fire signal; Central Control Module 1 is opened another detecting module (preceding detecting module is not closed); If two detecting modules send alerting signal simultaneously; Then Central Control Module 1 control acousto-optic alarm module 7 sends the sound and light alarm signal, if detector is connected on the wireless network, then through wireless transport module 6 alerting signal is sent.The utility model detection alarm idiographic flow is as shown in Figure 2.
1) each functions of modules of initialization, whether the test components and parts exist fault;
2) open wireless transport module 6, scanning channel searches whether the wireless network that can add is arranged: after detecting the network that can add, send request signal to main frame.Receive the main frame command adapted thereto after adding network, information such as confirm like address assignment, coordinate.After communication finishes, close wireless transport module 6, wait for that next communication cycle communicates; If no available network, then detector gets into independent working mode, closes radio receiving transmitting module;
3) open temperature-sensitive module 4; Guarantee to feel cigarette module 5 simultaneously and be in closed condition: if temperature-sensitive module 4 does not detect fire signal in the working time; Then after timer module 2 reaches predetermined break period, close temperature-sensitive module 4, open sense cigarette module 5 by Central Control Module 1 control;
4), then open sense cigarette module 5 immediately if temperature-sensitive module 4 is sent alerting signal; When sense cigarette module 5 detects fire signal, and temperature-sensitive module 4 sent alerting signal, behind Central Control Module 1 analysis confirmation, opens sound and light alarm module 7 and sends the sound and light alarm signal.If detector joins in the wireless network, then warning message is sent through wireless transport module 6;
5) if sense cigarette module 5 does not detect fire signal in the working time, and the heat alarm of the temperature-sensitive module 4 of this moment is not removed, and then feels cigarette module 5 continuous firings, removes or detect the smoke alarm signal until heat alarm;
6) when sense cigarette module 5 works independently, its detection alarm flow process and temperature-sensitive module 4 alarm flow that works independently is identical, promptly repeats 3)-5) step, just with 3)-5) temperature-sensitive module 4 in the step changes sense cigarette module 5 into, feel cigarette module 5 changes temperature-sensitive module 4 into and get final product.
Description of drawings
Fig. 1 is each module composition frame chart of the utility model;
Fig. 2 is the utility model detection alarm process flow diagram; After dotted arrow represented that timer interrupts among the figure, the outer module of bracket was promptly carried out in the operation in turn of the inside and outside module of frame of broken lines internal bracket one time, became the module of carrying out in the bracket, circulation in turn during next recycle;
Fig. 3 is that the utility model components and parts are formed synoptic diagram.
Embodiment
Below in conjunction with accompanying drawing 3, the utility model is further described through instance.
Embodiment 1:
The utility model is taking into full account design circuit on the energy-conservation basis, and components and parts are formed synoptic diagram such as Fig. 3 shows.Comprise centralized control unit A, power supply unit B, temperature-sensitive unit C, sense cigarette cells D, wireless transmission unit E and alarm unit F.Each unit concrete function and energy-saving scheme are following:
1) centralized control unit A
Centralized control unit A is equivalent to the Central Control Module 1 of Fig. 1 and the combination of timer module 2, adopts the low-power consumption MSP430F2112 of Texas Instrument (TI) chip, this built-in chip type timer and AD translation function.The MSP430F2112 chip has taken into full account energy-saving design, and 5 kinds of low power mode of operation are provided, and the standby mode power consumption is merely 0.7 μ A, only needs 1 μ s from standby mode to waking up.Centralized control unit A only just is in state of activation when carrying out data processing, all be in standby mode At All Other Times.Centralized control unit A control temperature-sensitive unit C opens with sense cigarette cells D in turn, and the utility model Set For Current time interval is 10s, and this time interval can be regulated as required; Centralized control unit A is responsible for the image data of temperature-sensitive unit C and sense cigarette cells D is analyzed, and has judged whether that fire takes place; Centralized control unit A is responsible for being provided with wireless transmission unit E, comprises transformat and transfer rate etc.; Centralized control unit A is responsible for driving alarm unit F.
2) power supply unit B
Power supply unit B is equivalent to the power module 3 of Fig. 1, comprises 3.6V lithium battery, TI bq27200 electric weight detection chip and LED light.Bq27200 detects battery electric quantity and crosses when hanging down, and A sends alerting signal to centralized control unit, and the flicker of centralized control unit A driving LED pilot lamp is luminous, and alert is in time changed battery.This place's LED light should be distinguished with the fire alarm pilot lamp, and the utility model adopts green LED lamp.If add wireless network, then will hang down the electric weight alerting signal and send.
3) temperature-sensitive unit C
Temperature-sensitive unit C is equivalent to the temperature-sensitive module 4 of Fig. 1, adopts TITMP102 low-power consumption chip, and chip itself promptly is a temperature sensor, and temperature-measuring range is-40-+125 ℃, and in-25-+85 ℃ scope, its temperature measurement accuracy can reach 0.5 ℃.TMP102 built-in chip type AD translation function, image data through AD conversion back through universal serial bus directly and microprocessor communicate, reduced the load of processor.The TMP102 chip provides four kinds of acquisition rate: 8Hz, 4Hz, 1Hz and 0.25Hz, and the utility model adopts the 1Hz acquisition rate under no fire alarm state.If detection data exceeds alarm threshold value, then change acquisition rate into 8Hz, collection result is averaged, if reach alarm threshold value, then heat detector sends alerting signal.The TMP102 die size is merely: 1.7 * 1.7mm, for temperature-sensitive sensors such as thermistor, circuit will be optimized greatly.The user also can install a plurality of TMP102 and carry out temperature survey on detector, to improve measuring accuracy and warning accuracy.
4) sense cigarette cells D
Sense cigarette cells D is equivalent to the sense cigarette module 5 of Fig. 1, adopts astigmatic formula photoelectric smoke principle.Comprise collection tabacco barn, infrarede emitting diode, infrared remote receiver and TLV2780 operational amplifier.The utility model adopts the AD translation function of MSP430F2112 built-in chip type that the signal of sense cigarette cells D collection is handled for reducing circuit complexity.Set For Current is handled a secondary data for every at a distance from 1s sense cigarette cells D, promptly gather respectively infrarede emitting diode close with opening under the flue gas data, the result is compared.Data when gathering infrarede emitting diode and closing and the data of gathering when infrarede emitting diode opened are carried out the influence that environment can be effectively eliminated in the difference processing with it; (measure to adopt astigmatic formula photoelectric smoke principle: infrared remote receiver and infrarede emitting diode not point-blank, even the light emitting diode unlatching, receiver does not receive infrared signal yet; And when flue gas existed, because the scattering process of flue gas particle, receiver will receive infrared signal.Close the infrared signal of situation and do difference and gather infrarede emitting diode, main in order to eliminate the influence of surround lighting), when this difference surpasses alarm threshold value, think that promptly fire takes place.Detailed process is: under the situation that infrarede emitting diode is closed, open infrared remote receiver and TLV2780 amplifier, gather current infrared signal and carry out the AD conversion; After converting, open infrarede emitting diode, gather current infrared signal and carry out the AD conversion; After conversion finishes, close sense cigarette cells D, centralized control unit A compares the data of twice collection.If the result surpasses alarm threshold value, then repeat aforesaid operations 3 times (closing, open infrarede emitting diode (two actions) is single job) immediately, result is averaged, if reach alarm threshold value, then feel the cigarette cells D and send alerting signal.
5) wireless transmission unit E
Wireless transmission unit E is equivalent to the wireless transport module 6 of Fig. 1, comprises TI CC2520 chip and 2.4GHz antenna.Can add low-power consumption Zigbee wireless network.After the utility model powers on, scanning channel, the wireless network that search can add.If the network that can not add is then closed wireless transmission unit E, and the 1 hour scanning channel in interval.If add wireless network, with the main frame exchange message, like address information, coordinate information etc., and 20s sends detector's status to main frame at interval, guarantees that detector still in network, after communication finishes, cuts out wireless transmission unit E.When detector detects fire signal, if before do not add network, then scan available channels once more sends alerting signal; If added wireless network, then open wireless transmission unit E immediately sends alerting signal.When the host acknowledgement alarm is the wrong report phenomenon, can send information, the alarm condition of closure detector.
6) alarm unit F
Alarm unit F is equivalent to the sound and light alarm module 7 of Fig. 1, comprises hummer and red light emitting diodes.Alarm unit F always is in closed condition under the alarm free state, when center control module A confirms to have fire to take place, drive alarm unit F and send the sound and light alarm signal; When center control module A confirms that the false positive signal of main frame transmission is removed or received in fire alarm, then close alarm unit F.
Parameters such as above interval time of the utility model and frequency acquisition can require to regulate according to actual scene.According to instance 1 energy-saving design, the power consumption of the utility model main components and parts under the alarm free state is shown in table 1, table 2.Can know that through calculating the average power consumption of the utility model under the alarm free state is merely 3.5 μ A/s, alarm time is merely 4s.
Each element 1s internal power budget table of table 1 temperature-sensitive module
Each element 1s internal power budget table of table 2 sense cigarette module
Claims (3)
1. a wireless energy saving composite fire detector comprises Central Control Module, timer module, power module, temperature-sensitive module, sense cigarette module, wireless transport module and sound and light alarm module; It is characterized in that: each module of power module and other links to each other; Timer module links to each other with Central Control Module; Each module of Central Control Module and other links to each other; The temperature-sensitive module links to each other with Central Control Module; Sense cigarette module links to each other with Central Control Module; Wireless transport module links to each other with Central Control Module; The sound and light alarm module links to each other with Central Control Module.
2. by the described wireless energy saving composite fire detector of claim 1, it is characterized in that this is wireless built-in sound and light alarm module of energy saving composite fire detector detector and wireless transport module.
3. by the described wireless energy saving composite fire detector of claim 1, it is characterized in that, adopt low-power consumption temperature-sensitive chip TI TMP102 detecting temperature, this built-in chip type AD conversion and serial communication function.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201133609U CN202632460U (en) | 2012-03-23 | 2012-03-23 | Wireless energy-saving compound fire hazard detector |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201133609U CN202632460U (en) | 2012-03-23 | 2012-03-23 | Wireless energy-saving compound fire hazard detector |
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| CN202632460U true CN202632460U (en) | 2012-12-26 |
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| CN2012201133609U Expired - Fee Related CN202632460U (en) | 2012-03-23 | 2012-03-23 | Wireless energy-saving compound fire hazard detector |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103745551A (en) * | 2013-12-25 | 2014-04-23 | 广西科技大学 | Fire hazard automatic alarm data transceiver apparatus |
| CN107045762A (en) * | 2017-04-14 | 2017-08-15 | 重庆和航科技股份有限公司 | Electrical fire remotely monitors dynamic early-warning method and system |
| CN109345799A (en) * | 2013-10-07 | 2019-02-15 | 谷歌有限责任公司 | Intelligent household's hazard detector of context special characteristic and/or early warning configuration is provided |
| CN113470298A (en) * | 2021-06-30 | 2021-10-01 | 重庆消防安全技术研究服务有限责任公司 | Intelligent early warning patrol equipment for fire control |
-
2012
- 2012-03-23 CN CN2012201133609U patent/CN202632460U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109345799A (en) * | 2013-10-07 | 2019-02-15 | 谷歌有限责任公司 | Intelligent household's hazard detector of context special characteristic and/or early warning configuration is provided |
| CN103745551A (en) * | 2013-12-25 | 2014-04-23 | 广西科技大学 | Fire hazard automatic alarm data transceiver apparatus |
| CN107045762A (en) * | 2017-04-14 | 2017-08-15 | 重庆和航科技股份有限公司 | Electrical fire remotely monitors dynamic early-warning method and system |
| CN107045762B (en) * | 2017-04-14 | 2023-08-11 | 重庆和航科技股份有限公司 | Electric fire remote monitoring dynamic early warning method and system |
| CN113470298A (en) * | 2021-06-30 | 2021-10-01 | 重庆消防安全技术研究服务有限责任公司 | Intelligent early warning patrol equipment for fire control |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121226 Termination date: 20150323 |
|
| EXPY | Termination of patent right or utility model |