CN102622844A - Wireless energy-saving compound type fire detector - Google Patents
Wireless energy-saving compound type fire detector Download PDFInfo
- Publication number
- CN102622844A CN102622844A CN2012100794365A CN201210079436A CN102622844A CN 102622844 A CN102622844 A CN 102622844A CN 2012100794365 A CN2012100794365 A CN 2012100794365A CN 201210079436 A CN201210079436 A CN 201210079436A CN 102622844 A CN102622844 A CN 102622844A
- Authority
- CN
- China
- Prior art keywords
- module
- fire
- temperature
- alarm
- signal
- 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
Images
Classifications
-
- Y02B60/50—
Landscapes
- Fire Alarms (AREA)
- Alarm Systems (AREA)
Abstract
The invention relates to a wireless energy-saving temperature and smoke sensing compound type fire detector for fire detection and alarming. The wireless energy-saving temperature and smoke sensing compound type fire detector comprises seven parts, i.e., a central control module, a timer module, a power module, a temperature sensing module, a smoke sensing module, a wireless transmission module and a sound and light alarming module. The wireless energy-saving temperature and smoke sensing compound type fire detector not only can be used as an independent type fire detector, but also can be used for building a fire detecting system by a wireless network. On the basis that the compound type fire detector effectively improves the fire alarming accuracy, an energy-saving algorithm and an energy-saving circuit design are adopted to prolong the service life of the detector. Under the state without fire alarming, the temperature sensing module and the smoke sensing module start to work at different time; when the sensing module in a working state detects a fire signal, the other sensing module is started instantaneously; and if the two sensing modules detect the fire signal simultaneously, the central control module controls the sound and light alarming module to emit an alarming signal. Under the networking condition, the fire alarming signal is sent out.
Description
Technical field
The present invention 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 object of the invention 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.
To achieve these goals, main modular of the present invention 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 present invention 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.Detection alarm idiographic flow of the present invention 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 present invention;
Fig. 2 is a detection alarm process flow diagram of the present invention; 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 components and parts of the present invention are formed synoptic diagram;
Embodiment
Below in conjunction with accompanying drawing 3, the present invention is further described through instance.
Embodiment 1:
The present invention 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 Set For Current time interval of the present invention 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 present invention 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 TI TMP102 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 present invention 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 present invention 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; When flue gas exists; Infrared remote receiver can receive stronger light signal under the infrarede emitting diode opening; (measure and adopt astigmatic formula photoelectric smoke principle: infrared remote receiver and infrarede emitting diode are not point-blank to cause the difference of twice image data excessive; Even light emitting diode is opened, 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 present invention 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 present invention and frequency acquisition can require to regulate according to actual scene.According to instance 1 energy-saving design, the power consumption of the present invention's 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 present invention 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 (10)
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, and is responsible for the electric power supply of entire circuit; Timer module links to each other with Central Control Module, for Central Control Module provides the interruption timing; Each module of Central Control Module and other links to each other; Be responsible for the maintenance and the Control work of entire circuit; The time of Central Control Module control timer module is provided with, control temperature-sensitive module and data analysis and the duty of feeling the cigarette module, the data setting and the duty of control wireless transport module; The duty of control acousto-optic alarm module; The temperature-sensitive module links to each other with Central Control Module, is responsible for the scene temperature surveying work, and measurement result is sent to Central Control Module; Sense cigarette module links to each other with Central Control Module, is responsible for on-the-spot flue gas concentration measuring work, and measurement result is sent to Central Control Module; Wireless transport module links to each other with Central Control Module, is responsible for sending fire alarm signal and accepting the host computer control signal; The sound and light alarm module links to each other with Central Control Module, the onsite alarming work when being responsible for the fire generation;
Under the alarm free state; Temperature-sensitive module and the timesharing unlatching work under the regulation and control of Central Control Module of sense cigarette module; Open the detecting module of the module of work in temperature-sensitive module and the sense cigarette module, do not open the detecting module of the module of work, after data that the detecting module of work detects surpass the alarm threshold value that is provided with as dormant state as work; Central Control Module is opened the detecting module of dormant state immediately; After if the data that two kinds of detecting modules detect all surpass alarm threshold value separately, Central Control Module confirms that fire takes place, and driving sound and light alarm module is sent on-the-spot sound and light alarm; Being connected under the situation of wireless network, alerting signal is sent through wireless transport module.
2. by the described wireless energy saving composite fire detector of claim 1; It is characterized in that; Adopt temperature to survey and survey the mode detection of fires that combines with flue gas; Guaranteeing to adopt energy-conservation algorithm on warning accuracy, the basis of response time: under the alarm free state, temperature-sensitive module and sense cigarette module timesharing unlatching work; When the detecting module of work detects fire signal, open temperature-sensitive module and another detecting module of feeling in the cigarette module immediately, if two kinds of detecting modules detect fire signal simultaneously, then detector sends alerting signal.
3. 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, the sound and light alarm module provides on-the-spot sound and light alarm; Under the networking condition, send fire signal through wireless transport module, otherwise close wireless transport module; This is wireless, and the energy saving composite fire detector uses as free-standing fire detector, or is used to make up the wireless fire disaster detection network.
4. by the described wireless energy saving composite fire detector of claim 1, it is characterized in that each module adopts low-power consumption components and parts design circuit.
5. by the described wireless energy saving composite fire detector of claim 1, it is characterized in that adopt the low-power consumption microprocessor chip, its wakeup time is merely 1 μ s, microprocessor only is in state of activation when deal with data, and all the other times are in standby mode.
6. by the described wireless energy saving composite fire detector of claim 1, it is characterized in that, adopt low-power consumption temperature-sensitive chip detecting temperature, this built-in chip type AD conversion and serial communication function.
7. by the described wireless energy saving composite fire detector of claim 1, it is characterized in that adopt energy-conservation algorithm controls temperature-sensitive module: under no fire alarm state, temperature-sensitive module acquisition rate is 1Hz; When the temperature-sensitive module detected fire signal, acquisition rate changed 8Hz into; If repeatedly the mean value of image data surpasses alarm threshold value, the temperature-sensitive module is sent heat alarm.
8. by the described wireless energy saving composite fire detector of claim 1, it is characterized in that, adopt astigmatic formula photoelectric smoke principle design sense cigarette module: under no fire alarm state, sense cigarette module acquisition rate is 1Hz; When sense cigarette module detected fire signal, acquisition rate changed 3Hz into; If repeatedly the mean value of image data surpasses alarm threshold value, sense cigarette module is sent the smoke alarm signal.
9. by the described wireless energy saving composite fire detector of claim 1; It is characterized in that; Adopt lithium battery power supply, adopt electric weight detection chip monitoring battery electric weight, when battery electric quantity is crossed when low; Send low electric weight alerting signal through LED flash, or send low electric weight alerting signal through wireless network.
10. by the described wireless energy saving composite fire detector of claim 1, it is characterized in that, adopt radio transmitting device, when joining wireless network, under no fire alarm state, 20s sends a detectable signal at interval; If detect fire signal, then send fire alarm immediately, during the no signal transmission, radio transmitting device is in closed condition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210079436.5A CN102622844B (en) | 2012-03-23 | 2012-03-23 | Wireless energy-saving compound type fire detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210079436.5A CN102622844B (en) | 2012-03-23 | 2012-03-23 | Wireless energy-saving compound type fire detector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102622844A true CN102622844A (en) | 2012-08-01 |
| CN102622844B CN102622844B (en) | 2014-01-15 |
Family
ID=46562739
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210079436.5A Expired - Fee Related CN102622844B (en) | 2012-03-23 | 2012-03-23 | Wireless energy-saving compound type fire detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102622844B (en) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103745553A (en) * | 2013-12-25 | 2014-04-23 | 广西科技大学 | Fire hazard automatic alarm apparatus |
| CN104269011A (en) * | 2014-09-26 | 2015-01-07 | 珠海保税区光联通讯技术有限公司 | Sound wave and temperature sensor and working method thereof |
| CN105026896A (en) * | 2012-12-12 | 2015-11-04 | 英特尔公司 | Sensor hierarchy |
| CN106297155A (en) * | 2016-10-24 | 2017-01-04 | 盐城冠星科技有限公司 | A kind of wireless intelligence type smoke alarm |
| CN106448023A (en) * | 2016-12-01 | 2017-02-22 | 上海腾盛智能安全科技股份有限公司 | Fire disaster smoke alarm with storage function |
| CN106887106A (en) * | 2017-04-21 | 2017-06-23 | 上海电机学院 | A kind of SCM Based wireless fire disaster alarm system |
| CN107290070A (en) * | 2017-08-04 | 2017-10-24 | 河北为信电子科技股份有限公司 | A kind of efficient wireless temperature measurement method of intelligent power saving formula and its device |
| CN107452178A (en) * | 2016-08-22 | 2017-12-08 | 杭州北海信息系统有限公司 | Intelligent fire alarm system and fire disaster intelligently alarm method |
| CN107924598A (en) * | 2015-07-13 | 2018-04-17 | 开利公司 | Safety automation system |
| CN109523738A (en) * | 2018-12-03 | 2019-03-26 | 武汉拓宝科技股份有限公司 | A kind of dynamic Smoke Detection algorithm based on time wheel piece |
| CN111354153A (en) * | 2020-03-12 | 2020-06-30 | 安徽启新明智科技有限公司 | Wireless feedback method and device for composite alarm and controller |
| CN111583574A (en) * | 2020-04-24 | 2020-08-25 | 广州通达汽车电气股份有限公司 | Vehicle-mounted fire protection system, method and device and storage medium |
| WO2024066000A1 (en) * | 2022-09-29 | 2024-04-04 | 中车长春轨道客车股份有限公司 | Fire suppression system for improving reliability of lithium ion storage batteries |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5608383A (en) * | 1995-03-29 | 1997-03-04 | Neil; Clifford R. | Automatic temperature alarm system |
| US6084522A (en) * | 1999-03-29 | 2000-07-04 | Pittway Corp. | Temperature sensing wireless smoke detector |
| CN1383106A (en) * | 2001-04-24 | 2002-12-04 | 松下电工株式会社 | Fire alarm system |
| CN202134071U (en) * | 2011-07-28 | 2012-02-01 | 程建勋 | Automobile, shop and household alarm with no false alarming and free of installation |
-
2012
- 2012-03-23 CN CN201210079436.5A patent/CN102622844B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5608383A (en) * | 1995-03-29 | 1997-03-04 | Neil; Clifford R. | Automatic temperature alarm system |
| US6084522A (en) * | 1999-03-29 | 2000-07-04 | Pittway Corp. | Temperature sensing wireless smoke detector |
| CN1383106A (en) * | 2001-04-24 | 2002-12-04 | 松下电工株式会社 | Fire alarm system |
| CN202134071U (en) * | 2011-07-28 | 2012-02-01 | 程建勋 | Automobile, shop and household alarm with no false alarming and free of installation |
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105026896A (en) * | 2012-12-12 | 2015-11-04 | 英特尔公司 | Sensor hierarchy |
| CN103745553A (en) * | 2013-12-25 | 2014-04-23 | 广西科技大学 | Fire hazard automatic alarm apparatus |
| CN104269011A (en) * | 2014-09-26 | 2015-01-07 | 珠海保税区光联通讯技术有限公司 | Sound wave and temperature sensor and working method thereof |
| CN107924598A (en) * | 2015-07-13 | 2018-04-17 | 开利公司 | Safety automation system |
| US11792037B2 (en) | 2015-07-13 | 2023-10-17 | Carrier Corporation | Safety automation system |
| US11240056B2 (en) | 2015-07-13 | 2022-02-01 | Carrier Corporation | Safety automation system |
| CN107452178A (en) * | 2016-08-22 | 2017-12-08 | 杭州北海信息系统有限公司 | Intelligent fire alarm system and fire disaster intelligently alarm method |
| CN106297155A (en) * | 2016-10-24 | 2017-01-04 | 盐城冠星科技有限公司 | A kind of wireless intelligence type smoke alarm |
| CN106448023A (en) * | 2016-12-01 | 2017-02-22 | 上海腾盛智能安全科技股份有限公司 | Fire disaster smoke alarm with storage function |
| CN106887106A (en) * | 2017-04-21 | 2017-06-23 | 上海电机学院 | A kind of SCM Based wireless fire disaster alarm system |
| CN107290070A (en) * | 2017-08-04 | 2017-10-24 | 河北为信电子科技股份有限公司 | A kind of efficient wireless temperature measurement method of intelligent power saving formula and its device |
| CN109523738A (en) * | 2018-12-03 | 2019-03-26 | 武汉拓宝科技股份有限公司 | A kind of dynamic Smoke Detection algorithm based on time wheel piece |
| CN111354153A (en) * | 2020-03-12 | 2020-06-30 | 安徽启新明智科技有限公司 | Wireless feedback method and device for composite alarm and controller |
| CN111583574A (en) * | 2020-04-24 | 2020-08-25 | 广州通达汽车电气股份有限公司 | Vehicle-mounted fire protection system, method and device and storage medium |
| CN111583574B (en) * | 2020-04-24 | 2021-10-15 | 广州通达汽车电气股份有限公司 | Vehicle-mounted fire protection system, method and device and storage medium |
| WO2024066000A1 (en) * | 2022-09-29 | 2024-04-04 | 中车长春轨道客车股份有限公司 | Fire suppression system for improving reliability of lithium ion storage batteries |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102622844B (en) | 2014-01-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102622844B (en) | Wireless energy-saving compound type fire detector | |
| US20160334082A1 (en) | Modularized smart home-care lighting device | |
| CN201546759U (en) | ZigBee technology-based underground safety-monitoring system for coal mine | |
| CN103957638A (en) | Smart home LED lamp with security function | |
| CN202632460U (en) | Wireless energy-saving compound fire hazard detector | |
| CN102737468A (en) | System and method for detecting fire hazard based on wireless multi-sensor information fusion | |
| CN205507445U (en) | But intelligent kitchen system of remote monitoring AND operation | |
| CN102393743A (en) | Embedded multifunctional intelligent trolley | |
| CN102821525B (en) | A kind of multi-function emergency lamp control system and control method thereof | |
| CN103794036A (en) | Wireless multipoint intelligent alarm system and control method thereof | |
| CN205450606U (en) | Smart home system | |
| CN110031904B (en) | Indoor personnel presence detection system based on low-resolution infrared thermal imaging | |
| CN104123819A (en) | Fireproof and thief-proof alarming system based on single-chip microcomputer | |
| CN207216829U (en) | A kind of photoelectric smoke fog siren based on arrowband Internet of Things | |
| CN203703790U (en) | LED emergency lighting device capable of sensing smoke | |
| Defeng et al. | A fire monitoring system in ZigBee wireless network | |
| CN108879826A (en) | A kind of power battery intelligent monitor system | |
| CN109872487A (en) | One kind being based on Lora domestic safety prevention system | |
| CN106128057A (en) | A kind of warehouse based on wireless sensor network security intelligent monitor system | |
| CN203288022U (en) | Spatial fire early-warning device based on solar blind ultraviolet technology | |
| CN204044963U (en) | A kind of petrochemical plant safety monitoring based on WSN network and warning system | |
| CN203338545U (en) | A household environment wireless monitoring system | |
| CN205235248U (en) | Intelligent building fire control detection device | |
| CN201233635Y (en) | Infrared detection device | |
| CN116311760A (en) | Civil building fire monitoring and early warning system based on Internet of things |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| 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: 20140115 Termination date: 20200323 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |