CN101763704A - Intelligent home fire-fighting detection and alarm system and control method thereof - Google Patents
Intelligent home fire-fighting detection and alarm system and control method thereof Download PDFInfo
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Abstract
The invention discloses an intelligent home fire-fighting detection and alarm system which comprises a plurality of fire-fighting detectors, a plurality of data gathering centers and a monitoring center, wherein the plurality of fire-fighting detectors are divided into a plurality of groups, each data gathering center corresponds to one group of the fire-fighting detector for communication, and the monitoring center is communicated with the plurality of data gathering centers. The invention also provides a control method based on the system. In the control method, a wireless communication network is formed by a plurality of wireless network fire-fighting detectors, data information is collected in real time and transmitted to the data gathering centers to be subjected to an intelligentized judgment of a fire degree so as to prevent a fire false alarm to the maximum limit, the transmission of detection area state information and information data by a mobile phone short message on the internet is realized through a GPRS (general packet radio service) and Ethernet communication module, thereby realizing pre-alarm and extinguishing the fire in the cradle, and the monitoring center can also realize the connection with a town fire station system so as to reach the highest fire reaction speed.
Description
Technical field
The present invention relates to a kind of intelligent home fire-fighting detection and alarm system and control method thereof based on the WI-FI wireless sensor network.
Background technology
When having detection function, intelligent false alarm preventing function, threshold value setting function, breaking out of fire still at utmost the fire-fighting system of sound and stable operation become and ensured that the people produce, the important means that life is carried out smoothly more and more obtains paying attention in every field.But, domestic present automatic fire alarm system nearly all is wired or only the partial function realization is wireless, do not have the antiquated building of the wired fire-fighting system of condition setting for some,, fire load low because of its fire resistance rating is big, building is adjoined, the cohort layout, aging away from cities and towns, backer's lack of water, wiring, also work reliably and with long-term for wired system and increased suitable difficulty; The building that has come into operation is equipped with wire system again, and not only cost height, and difficulty is quite big.In addition, problems such as existing zigbee Radio Network System exists transmission range little, and system load is big inadequately, and technology is immature, and there is little, the problem such as cost an arm and a leg of scale support in the wireless fire-fighting detection system product of external existing non-network, can not satisfy the needs of China.
Summary of the invention
Purpose of the present invention is exactly for fear of above-mentioned existing in prior technology weak point, a kind of installation facility, moderate cost, reliable operation, little, the intelligentized intelligent home fire-fighting detection and alarm system of energy consumption are provided, the control method based on this intelligent home fire-fighting detection and alarm system also is provided simultaneously.
For achieving the above object, the present invention proposes a kind of intelligent home fire-fighting detection and alarm system, comprise a plurality of fire fighting detectors, several convergence centers, a Surveillance center, a plurality of fire fighting detectors are divided into some groups, in the heart each and corresponding one group fire fighting detector communication in several convergences, a Surveillance center and several convergence center communications.Finish the collection and networking transmission of fire information data.
Described fire fighting detector comprises the MCU single-chip microcomputer, respectively the WI-FI wireless communication module that is connected with the MCU single-chip microcomputer, condition of a fire parameter detection sensor, fire-fighting link device; Be used for that the testing result data to data is caught and transmitted in real time to fire and current region state and converge central host, finish functions such as data acquisition.
Described convergence center comprises the MCU single-chip microcomputer, respectively the WI-FI wireless communication module that is connected with the MCU single-chip microcomputer, Ethernet transport module, GPRS transport module, display module, Keysheet module, warning device;
Described Surveillance center comprises computing machine, and computing machine connects Ethernet transport module, GPRS transport module.
In a kind of preferred implementation, above-mentioned condition of a fire parameter detection sensor comprises smoke detection sensor, combustible gas detecting sensor, temperature detecting sensor, humidity acquisition sensor.
In a kind of preferred implementation, above-mentioned fire-fighting link device comprises fire-fighting water valve, flusher, audible-visual annunciator.
In a kind of preferred implementation, above-mentioned WI-FI wireless communication module adopts the GS1010 communication module of WI-FI.With the IEEE802.11 agreement is that reliable procotol makes up cordless communication network, realizes the networked wireless transmission of data.
Said system is to constitute cordless communication network by a plurality of wireless network fire fighting detectors, and real-time image data information, transmission arrives the intellectuality judgement that the fire degree is done at the convergence center, intelligent judgement can prevent to greatest extent that fire wrong report situation from occurring, and by GPRS module and Ethernet interface communication module, can realize that mobile phone short message form transmission surveyed area status information and information data are in the transmission on the Internet, realize pre-alarm, fire is eliminated in cradle, Surveillance center can also realize interrelating with cities and towns system of fire department, to reach the fastest fire reaction velocity.
The present invention also provides a kind of control method based on above-mentioned intelligent home fire-fighting detection and alarm system, and this method comprises the following steps:
A, fire fighting detector through the WI-FI wireless communication module with the condition of a fire parameter signal that collects according to fixing communication frame format, by the direct sequence spread spectrum modulation technique, then according to the IEEE802.11 communication protocol of WI-FI, in the reticular pattern network that the WI-FI wireless communication module is formed, transmit, converge to the convergence center after the route automatically.
After the data message of each fire fighting detector node is collected at B, convergence center, is (as: temperature higher than 80 degree to judgment criteria by each collection capacity of pre-establishing, humidity is lower than?, smog collection capacity 1 is for having cigarette 0 for smokeless etc.), whether judge has disaster hidden-trouble, information is carried out initial analysis and made corresponding processing, at last with fixing communication frame format, by GPRS, internet network is transferred to the Surveillance center of appointment.
C, Surveillance center to information analysis, adjudicate and make respective handling.
According to the present invention, what whole wireless network adopted is that wi-fi GS1010 forms mesh network, the robustness of assurance system, each detector communication module can be carried out route each other, arrive the convergence center with guarantee information, after collecting, the convergence center is uploaded to the fire fighting monitoring center, thereby to information analysis, adjudicate and make respective handling.
The data that inside of the present invention communicates with one another comprise regional temperature, humidity, smog, several data such as detector position, and carry out storage and uniform, call and manage in the heart the database in fire fighting monitoring, and video data in real time.
Compared with prior art, beneficial effect of the present invention is embodied in:
A, based on the wireless network architecture of wi-fi technology
Be ripe relatively on the present international market of Wi-fi technology, and be a kind of radio network technique of market approval, up-to-date low-power consumption wifi mixed-media network modules mixed-media has following characteristics: distance is moderate, networking is simple, low in energy consumption, data transmission capacity is big, cost is low, full duplex transmission etc.The present invention has adopted ripe wi-fi wireless communication technology, builds the wireless fire fighting detector network, compares with traditional wired fire protection alarm system, and system installs, and the complexity of debugging reduces greatly, to the destruction and the transformation existence hardly of building.For the ancient building that can't transform of numerous domestic, the building that has come into operation lay transformation, very strong specific aim and practicality are arranged.
B, adaptivity flexibly
There is the healthy and strong network system in the wireless fire fighting detector system that the present invention built, has powerful adaptivity.Each node of detector is interconnected by the WIFI-GS1010 communication module, all has routing function, what adopt is netted network structure, the additions and deletions node is convenient, network size can be adjusted arbitrarily according to construction scope, and the complexity of installing and being provided with does not increase, and has avoided traditional wired alarming system scale little, the drawback that dirigibility is weak.
C, cheap cost
Occurred wireless fire-fighting system both at home and abroad, but its price reaches to expensive.The present invention adopts the Wifi technology of low power consumption and low cost, and it is fast to have speed, low-power consumption, characteristics such as low cost, current system cost can be dropped to and degree that traditional wired fire-fighting system maintains an equal level, and each module of this system still has certain room for price-cut, be highly susceptible to the popularization in market.
D, low-power consumption
The complete development system of GS1010 of the wireless SOC (system on a chip) of the Wi-Fi that is based on GainSpan (SoC) that the present invention adopts, GainSpan GS1010 SOC is highly integrated, a ultra-low power consumption wireless SOC (system on a chip) (SOC), it in addition more energy-conservation than Zigbee cordless communication network, 2 joint No.5 cells can use time about 1 year to 2 years.Thereby more effectively prolonged the maintenance period of individual probe node, saved corresponding manpower and materials.
The accuracy of e, information transmission, real-time
The present invention can cross the timely seizure condition of a fire by adopting high-quality fire fighting detector; By in its wireless network transmissions, adopting ground data mode transmission, and timed sending, patrol and examine and three kinds of transmission modes of the output of reporting to the police are carried out co-ordination, can make information data carry out Network Transmission in the very first time; Based on the Network Transmission of the IEEE802.11 agreement of Wifi,, comprise strict data check, fully guaranteed the accuracy of data, real-time has effectively been avoided the wrong report of the condition of a fire and has been failed to report.
F, data are intuitively complete.
Description of drawings
Fig. 1 is the system architecture synoptic diagram;
Fig. 2 is a fire fighting detector structure block diagram;
Fig. 3 is a convergence division center block diagram;
Fig. 4 is system's control flow chart;
Embodiment
Below in conjunction with accompanying drawing in detail the preferred embodiments of the present invention are described in detail.
As shown in Figure 1, a kind of intelligent home fire-fighting detection and alarm system based on the WI-FI wireless sensor network of the present invention comprises a plurality of fire fighting detectors, several convergence centers, a Surveillance center, a plurality of fire fighting detectors are divided into some groups, in the heart each and corresponding one group fire fighting detector communication in several convergences, a Surveillance center and several convergence center communications.
As shown in Figure 2, fire fighting detector comprises the MCU single-chip microcomputer, respectively the WI-FI wireless communication module that is connected with the MCU single-chip microcomputer, condition of a fire parameter detection sensor, fire-fighting link device.Wherein: the WI-FI wireless communication module adopts the GS1010 communication module of WIFI, combines with fire fighting detector, with IEEE 802.11 protocol construction cordless communication networks, realizes the networked wireless transmission of data.Condition of a fire parameter detection sensor comprises smoke detection sensor, combustible gas detecting sensor, temperature detecting sensor, humidity acquisition sensor, is used for fire and current region state are caught, and finishes the collection of fire information data.The fire-fighting link device comprises fire-fighting water valve, flusher, audible-visual annunciator, by the unified control of Surveillance center, handles by the informational function analysis, realizes fire-alarm prediction, self-extinguishing, fire alarm indication, guides crowd evacuation.
As shown in Figure 3, the convergence center comprises the MCU single-chip microcomputer, respectively the WI-FI wireless communication module that is connected with the MCU single-chip microcomputer, Ethernet transport module, GPRS transport module, display module, Keysheet module, warning device.That wherein the MCU single-chip microcomputer at convergence center adopts is the LPC2292MCU of the ARM kernel of 32bit, adopts advanced framework, and abundant IO mouth is provided, strong calculation function, and powerful service ability, and have characteristics low in energy consumption.Simultaneously, it operates on the real time operating system uCOSII, has real-timely, and characteristics such as system is reliable are for the realization of each function provides guarantee.What wireless transceiver circuit adopted is the WIFI system of GS1010 scheme, it has comprised the establishment of all indispensabilities in IEEE 802.11 and the compatible system in single chip, merged the radio-frequency (RF) transceiver of 2.4GHz and 5GHz, embedded networking storehouse and development environment.
The convergence center is meant the LPC2292MCU that adopts the ARM7 core, the GPRS transport module, the Ethernet transport module, the data transfer platform that the Wi-Fi communication module is built jointly, realize data no gap transmission on internet network, make things convenient for data to transmit throughout the country, solve the fire hazard monitoring place issue.
Surveillance center comprises computing machine, and computing machine connects Ethernet transport module, GPRS transport module.The data that Surveillance center can inquire about in real time, collect the convergence node, and with the together relevant data acquisition node association of each node data, in electronic chart, show simultaneously; Want in addition to realize abnormal nodes is carried out real-time tracing, prompting, node data backed up in realtime, provided function such as inquiry.
GPRS transport module, the data of collection occur when unusual, send to the phone number of GPRS module binding, i.e. keeper or associated user's phone number with the form of short message.
The Ethernet transport module converges in the convergence center after the data acquisition, convergence center Information Monitoring uploads to Surveillance center by Ethernet.
The Wi-Fi communication module is used to build the bottom sensor network.
In concrete the enforcement, the communication module of each fire fighting detector all is a routing node, and the GS1010 communication module on each node erects automatically can be from the reticular pattern wireless sense network of route.
Radio communication adopts WI-FI and GPRS communication module, the convergence node is collected the detection data of probe node in the subnet, and, become the trunk roads of wireless network by WI-FI and GPRS communication module access to wireless communication network, accept patrolling and examining and inquiring about simultaneously from Surveillance center; The convergence node can be adjudicated detection data in addition, occurs if any abnormal data, can also inform that Surveillance center starts relevant fire-fighting link device and carries out respective handling.
As shown in Figure 4, a kind of control method based on above-mentioned intelligent home fire-fighting detection and alarm system, this method comprises the following steps:
A, fire fighting detector through the WI-FI wireless communication module with the condition of a fire parameter signal that collects according to fixing communication frame format, by the direct sequence spread spectrum modulation technique, then according to the IEEE802.11 communication protocol of WI-FI, in the reticular pattern network that the WI-FI wireless communication module is formed, transmit, converge to the convergence center after the route automatically.
In this step, the acquired signal of fire fighting detector comprises smog, humidity, temperature and various switching value (control signal of fire-fighting link device).
The WI-FI wireless network transmissions is taked the transmission of 19bit data mode, and transmission mode has three kinds: timed sending, the output of patrolling and examining and report to the police, interim:
Timed sending: fire fighting detector is regularly to WI-FI wireless network send state information;
Patrol and examine: if fire fighting detector receives the search request that Surveillance center sends, then send state information;
The output of reporting to the police: if when the condition of a fire supplemental characteristic that fire fighting detector collects surpasses early warning or alarming threshold value, send state information initiatively.
After the data message of each fire fighting detector node is collected at B, convergence center, judgment criteria by each collection capacity of pre-establishing (as: whether temperature and humidity is higher than setting value, smog collection capacity is established 1 for cigarette 0 being arranged for smokeless etc.) is tentatively judged, whether judge has disaster hidden-trouble, information is carried out initial analysis and made corresponding processing, at last with fixing communication frame format, pass through GPRS, internet network is transferred in Surveillance center's database of appointment, so that Surveillance center carries out data storage and monitoring.
Fixed communication frame format among above-mentioned steps A, the step B is:
| Start bit FA | Network node number | The sensor type number | Type number 1 | Sampled data 1 | Type number 2 | Sampled data 2 | Type number 3 | Sampled data 3 |
Wherein: the beginning of start bit FA flag data frame, have only receiving end (converging the center) to receive FA after, just be considered as useful frame.Network node number is the fire fighting detector numbering.
The convergence center is carried out initial analysis and is made corresponding processing information, comprises the following steps:
When the no condition of a fire:
Supplemental characteristics such as a, analysis current time, fire fighting detector address, environment temperature, humidity, smog;
B, with above-mentioned data by GPRS, the Internet sends to Surveillance center and carries out data storage and monitoring, so that query history record later on;
C, the synchronous display status information of LCD display;
The setting of d, alarming threshold value;
When the condition of a fire occurring:
Supplemental characteristics such as a, analysis current time, probe address, the environment temperature of collecting, humidity, smog;
B, startup warning device are reported to the police, and siren sounds;
C, with above-mentioned data instant by GPRS, the Internet uploads to Surveillance center and carries out data storage and monitoring, so that query history record later on;
D, the synchronous display status information of LCD display.
C, Surveillance center to information analysis, adjudicate and make respective handling, carry out data storage and monitoring.
Surveillance center to information analysis, adjudicate and make respective handling, comprise the following steps:
During the no condition of a fire:
A, the environment temperature of analyzing current time, probe address, receiving, detector electric weight, smokescope value, humidity value supplemental characteristic;
B, above-mentioned data are deposited system database;
C, the synchronous display status information of LED display;
Before the condition of a fire is sprouted:
A, the warning family of power and influence are worth setting;
B, pre-alarm information indicating;
C, the synchronous display status information of LED display;
When the condition of a fire is arranged:
A, the environment temperature of analyzing current time, detector time, receiving, supplemental characteristics such as smokescope, ambient humidity;
B, Surveillance center's response are reported to the police, and start fire-fighting link each equipment of device (as fire alarm bell, water injector etc.), and fire alarm is reported fire department and notifies the user, ask the fastest Fire-Fighting Service;
C, deposit above-mentioned data in system database for printing inquiry;
D, the synchronous display status information of LED display.
Each fire fighting detector preestablishes a numbering by system before coming into operation, and this fire fighting detector relevant information can be stored in the database of Surveillance center.After new fire fighting detector was opened, system can discern this fire fighting detector automatically, and it is added existing networking, and on the contrary, when certain node was deleted, this node also can be deleted automatically by system in its network, re-route.Therefore, the directly additions and deletions of bottom data acquisition node, and can not cause network paralysis.
Claims (10)
1. intelligent home fire-fighting detection and alarm system, it is characterized in that: comprise a plurality of fire fighting detectors, several convergence centers, a Surveillance center, a plurality of fire fighting detectors are divided into some groups, in the heart each and corresponding one group fire fighting detector communication in several convergences, a Surveillance center and several convergence center communications; Described fire fighting detector comprises the MCU single-chip microcomputer, respectively the WI-FI wireless communication module that is connected with the MCU single-chip microcomputer, condition of a fire parameter detection sensor, fire-fighting link device;
Described convergence center comprises the MCU single-chip microcomputer, respectively the WI-FI wireless communication module that is connected with the MCU single-chip microcomputer, Ethernet transport module, GPRS transport module, display module, Keysheet module, warning device;
Described Surveillance center comprises computing machine, and computing machine connects Ethernet transport module, GPRS transport module.
2. intelligent home fire-fighting detection and alarm system according to claim 1 is characterized in that: described condition of a fire parameter detection sensor comprises smoke detection sensor, combustible gas detecting sensor, temperature detecting sensor, humidity acquisition sensor.
3. intelligent home fire-fighting detection and alarm system according to claim 1 is characterized in that: described fire-fighting link device comprises fire-fighting water valve, flusher, audible-visual annunciator.
4. intelligent home fire-fighting detection and alarm system according to claim 1 is characterized in that: described WI-FI wireless communication module adopts the GS1010 communication module of WI-FI.
5. intelligent home fire-fighting detection and alarm system according to claim 1 is characterized in that: the MCU single-chip microcomputer at described convergence center adopts the LPC2292MCU of ARM7 core.
6. control method based on each described intelligent home fire-fighting detection and alarm system of claim 1 to 5, this method comprises the following steps:
A, fire fighting detector through the WI-FI wireless communication module with the condition of a fire parameter signal that collects according to fixing communication frame format, by the direct sequence spread spectrum modulation technique, then according to the IEEE802.11 communication protocol of WI-FI, in the reticular pattern network that the WI-FI wireless communication module is formed, transmit, converge to the convergence center after the route automatically.
After the data message of each fire fighting detector node is collected at B, convergence center, judgment criteria by each collection capacity of pre-establishing, whether judge has disaster hidden-trouble, information is carried out initial analysis and made corresponding processing, at last with fixing communication frame format, by GPRS, internet network is transferred to the Surveillance center of appointment.
C, Surveillance center to information analysis, adjudicate and make respective handling.
7. control method according to claim 6 is characterized in that: the fixed communication frame format among described steps A, the step B is:
Wherein: network node number is the fire fighting detector numbering.
8. control method according to claim 6, it is characterized in that: the WI-FI wireless network transmissions in the described steps A is taked the transmission of 19bit data mode, transmission mode has three kinds: timed sending, the output of patrolling and examining and report to the police, and interim: timed sending: fire fighting detector is regularly to WI-FI wireless network send state information;
Patrol and examine: if fire fighting detector receives the search request that Surveillance center sends, then send state information;
The output of reporting to the police: if when the condition of a fire supplemental characteristic that fire fighting detector collects surpasses early warning or alarming threshold value, send state information initiatively.
9. control method according to claim 6 is characterized in that: among the described step B information is carried out initial analysis and made corresponding processing, comprise the following steps:
When the no condition of a fire:
A, the condition of a fire supplemental characteristic of analyzing current time, fire fighting detector address, collecting;
B, with above-mentioned data by GPRS, the Internet sends to Surveillance center and carries out data storage and monitoring;
C, the synchronous display status information of display screen;
The setting of d, alarming threshold value;
When the condition of a fire occurring:
A, the condition of a fire supplemental characteristic of analyzing current time, probe address, collecting;
B, startup warning device are reported to the police.
C, with above-mentioned data instant by GPRS, the Internet uploads to Surveillance center and carries out data storage and monitoring;
D, the synchronous display status information of display screen.
10. control method according to claim 6 is characterized in that: among the described step C to information analysis, adjudicate and make respective handling, comprise the following steps:
During the no condition of a fire:
A, the condition of a fire supplemental characteristic of analyzing current time, probe address, receiving;
B, above-mentioned data are deposited system database;
C, the synchronous display status information of display screen;
Before the condition of a fire is sprouted:
A, the warning family of power and influence are worth setting;
B, pre-alarm information indicating;
C, the synchronous display status information of display screen;
When the condition of a fire is arranged:
A, the condition of a fire supplemental characteristic of analyzing current time, detector time, receiving;
B, Surveillance center's response are reported to the police, and start the fire-fighting link device, and fire alarm is reported fire department and notifies the user;
C, deposit above-mentioned data in system database;
D, the synchronous display status information of display screen
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