CN101945496A - Wireless distributed poisonous or combustible gas sensor detection network system and monitoring method thereof - Google Patents
Wireless distributed poisonous or combustible gas sensor detection network system and monitoring method thereof Download PDFInfo
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Abstract
The invention discloses a wireless distributed poisonous or combustible gas sensor detection network system which comprises a wireless gas on-site detection device and a remote monitoring device, and is characterized in that the wireless gas on-site detection device comprises a gas sensing module, a digital processing module and a wireless communication module following WIFI protocol; the gas sensing module is used for detecting the concentration of poisonous or combustible gas in the ambient environment and connecting detection information into an INTERNET network and the remote monitoring device for communication through a 3G network via the wireless communication module after treatment by the digital processing module; and the wireless gas on-site detection devices can form a self-organizing network with mutual communication through the communication of the wireless communication modules. The system can simultaneously realize the on-site and the remote monitoring of data of poisonous or combustible gas in a real-time manner through the network.
Description
Technical field
The invention belongs to gas sensor apparatus monitoring technical field under the outburst surroundings, be specifically related to a kind of distributed poisonous or combustible gas sensor detection network system and method for supervising thereof based on WiFi and 3G radio sensing network.
Background technology
In recent years, along with the development of China's chemical industry, Sudden Pollution Accident be progressively ascendant trend.Inflammable, explosive, toxic gas run into that manual operation is improper, under the influence of factors such as natural calamity, production equipment and technology trouble in case leak, will cause poisoning, fire even explosion accident, the serious harm people's safety of life and property.Same in sudden disasters such as earthquake, fire, flood, will face the situation of poisonous and harmful or combustible gas leakage.After the rescue personnel reaches the spot, need monitor parameters such as the gaseous species at scene and concentration, thereby understand the gaseous diffusion situation of the scene of the accident.Present portable gas concentration monitor equipment, great majority can only be monitored pure gas, and owing to do not possess the wireless transmission function of data, need the on-the-spot reading of data of rescue personnel, this can bring potential danger to the rescue personnel in the fast changing scene of the accident.
Domestic Environment emergency monitoring treatment facility is also relatively backward at present, equipment such as similar sudden accident gas fast detecting case have been developed abroad with regard to sudden accident, be used for sudden gas leakage accidents and emergency relief, sampling ability and sampling precision have been improved, strengthened the emergent scope of sudden accident, made it be applicable to that more confined space, underground storehouse and pipeline and rescue personnel enter the occasion of comparison danger.Simultaneously, the detection case configuration has the XQC-15E air sampler of 30 meters sampling abilities, with 10 kinds of common toxic, pernicious gas fast detecting pipe, making in about 5 minutes of the rescue personnel can be poisonous to common 10 kinds, pernicious gas carries out fast detecting, for accident treatment provides in time field monitoring data accurately.Though these equipment have solved some problems of gas on-site monitoring to a certain extent, yet owing to do not possess the remote monitoring ability, need the rescue personnel to monitor to the scene, bring certain danger to the rescue personnel.The present invention comes therefrom.
Summary of the invention
The object of the invention is to provide a kind of distributed poisonous or combustible gas sensor detection network system, has solved that poisonous or fuel gas field monitoring brings certain problems such as danger to the rescue personnel in the prior art.
In order to solve these problems of the prior art, technical scheme provided by the invention is:
A kind of distributed poisonous or combustible gas sensor detection network system, comprise on-the-spot sniffer of wireless gas and long-distance monitorng device, it is characterized in that the on-the-spot sniffer of described wireless gas comprises gas sensing module, digital signal processing module and follows the wireless communication module of WIFI agreement; Described gas sensing module detects poisonous or combustable gas concentration in the surrounding environment, and will detect information be connected into INTERNET network and long-distance monitorng device communication by wireless communication module by 3G network after digital signal processing module is handled; Form the self-organizing network of mutual communication between the on-the-spot sniffer of described wireless gas by the wireless communication module communication.
Preferably, described digital signal processing module comprises processor and accepts the memory of processor read-write, and inventory analysis was handled after described processor was accepted the detection information of gas sensing module, and sent the transmitting-receiving instruction to wireless communication module.
Preferably, described gas sensing module comprises gas sensor and D/A converting circuit, after the concentration of toxic gases, converts digital signal to by supporting D/A converting circuit and exports to digital signal processing module in the described gas sensor collection surrounding being monitored.
Preferably, described microprocessor connects wireless communication module by the RS-485 serial ports, and described wireless communication module is to the detection information of each toxic combustible gas sensor of microprocessor poll.
Preferably, described wireless communication module comprises transceiver, 3G network interface card and WIFI network interface card, and the detection information of toxic combustible gas sensor is accepted and sent to described transceiver; Described wireless communication module is followed the wireless MAC agreement, organizes themselves into wireless route with the on-the-spot sniffer wireless communication module of other wireless gas.
Preferably, described system also comprises the wireless receiving and dispatching gateway, and described wireless receiving and dispatching gateway is accepted the detection information of the toxic combustible gas sensor of the wireless route transmission of reception, and the forwarding of detection information is uploaded to the INTERNET network.
Preferably, described system also comprises the on-site supervision device, the self-organizing network communication of the on-the-spot sniffer formation of on-the-spot sniffer of gas or wireless gas that described on-site supervision device is direct and wireless, the detection information of accepting wireless route or wireless gas scene sniffer realizes on-site supervision.
Preferably, described long-distance monitorng device comprises remote server, described long-distance monitorng device is connected into the INTERNET network, and the toxic combustible gas of accepting the self-organizing network transmission of on-the-spot sniffer of wireless gas or the on-the-spot sniffer formation of wireless gas by the INTERNET network detects information.
Preferably, described remote server is responsible for coordinating whole detection network system, show that storing the on-the-spot sniffer of wireless gas detects information, and all detection information reported datas are carried out the multinode information fusion handle, analyze source of leaks and diffusion tendency poisonous, fuel gas.
The present invention also provides a kind of poisonous or fuel gas method for supervising based on 3G and WIFI wireless network, it is characterized in that described method comprises:
(1) behind the on-the-spot sniffer power-up initializing of wireless gas, wireless communication module begins to carry out the adding trial of self-organizing network; When not having self-organizing network, create self-organized network nodes, accept the adding of the on-the-spot sniffer of other wireless gases;
(2) toxic combustible gas information in the surrounding environment is caught in the collection of the on-the-spot sniffer gas sensing of wireless gas module, and the information that will detect is transferred to the on-the-spot sniffer of other wireless gases of self-organizing network or is uploaded to long-distance monitorng device by self-organizing network by self-organizing network;
(3) long-distance monitorng device carries out the on-site supervision or the remote monitoring of poisonous or fuel gas according to the gas information that receives.
The invention provides a kind of large-scale distributed poisonous or combustible gas sensor detection network system based on WiFi MANET and 3G wireless Internet, can apace sensing terminal be launched at the scene configuration, control terminal is arranged on safe place, and which type of safeguard procedures the assessment rescue personnel need adopt safety to enter the operating area that the scene is carried out accident treatment and determined safety.Simultaneously, can be according to the variation of field condition, the situation of definite gaseous diffusion in zone widely is for peripheral personnel provide real-time alarm and whether need the information such as orientation of withdrawing and withdrawing.
The present invention is directed under the situation of outburst surroundings contamination accident, need carry out emergency monitoring to murder by poisoning, inflammable gas, emergent toxic gas detected transmission equipment and sensing network that exploitation can be disposed fast, can improve the operating efficiency and the fail safe of gas-monitoring greatly, in time, effectively, scientifically handle various Sudden Pollution Accident provide may.This invention can be widely applied to environmental protection, safety supervision and law enforcement agency, except being applied to aspects such as fire-fighting and rescue, environmental protection emergent accident, also there is using value in this system at aspects such as safety in production, the law enforcement that prevents chemical substance harm and chemical weapons anti-terrorisms.As in law enforcement, also running into picture oxygen shortage, combustible gas blast, carbon monoxide and the fatal harm of hydrogen sulfide, some illegal arms and terrorist also can utilize poisonous chemical vapors to endanger public security, this system can be used for detecting the situation of these chemical substances, to guarantee to enter this regional fail safe.
Integrated highly sensitive sensing of native system and radio network technique can be disposed under complicated site environment fast, possess the interim emergent gas-monitoring ability of accident.The present invention is based on 3G and (contain WCDMA, TD-SCDMA and EV-DO) and the toxic combustible gas of the radio sensing network of WiFi to dispose detection system fast be that the WiFi wireless sensor network system of the self-organizing of a, combustible gas detecting poisonous by poisonous, combustible gas sensor, a large amount of wireless local supervising and measuring equipment in a large number being used for of forming is realized on-site supervision, this system can in time be sent to remote server on the Internet with sensing data by 3G network simultaneously, thereby remote monitoring function is provided.The signal that poisonous, combustible gas sensor is responsible for front end obtains and handles; On-the-spot sniffer of wireless gas and toxic gas sensor pairing use are connected with control unit (microprocessor) by the RS-485 serial ports, are responsible for reporting the testing result with poisonous, the combustible gas sensor of its pairing; Remote server is responsible for the demonstration and the storage of system coordination, sensor state information, and all reported datas are carried out the multinode information fusion, analyzes source of leaks and diffusion tendency thereof poisonous, fuel gas.The wireless receiving and dispatching gateway can be WAP (wireless access point) (AP) independently, also can form self-organization network by the wireless communication module of on-the-spot sniffer self assembling of each wireless gas and realize wireless route.The on-the-spot sniffer of wireless gas is powered by the accumulator direct current supply mode.The present invention adopts Wi-Fi MANET mechanism and 3G network technology, has effectively overcome the shortcoming that wireless transmission distance is limited, be blocked easily, is applicable to the applied environment of various complexity, when realizing on-site supervision, reaches the purpose of remote monitoring.
System of the present invention is the WiFi wireless sensor network system of self-organizing, and it is by poisonous, combustible gas sensor in a large number, and digital signal processing module and wireless communication module (transmitter module and accept module) and/or a remote monitoring device constitute; Poisonous, combustible gas sensor is responsible for detecting the concentration of toxic gases in the surrounding air, and testing result is exported with digital signaling; Each wireless communication terminal is connected with digital signal processing module by the RS-485 serial ports, inquiry according to the fixed time gap periods is poisonous, the testing result of combustible gas sensor, and the wireless route that forms by self-organization network reports remote monitoring device with testing result; When having the such wireless receiving and dispatching gateway of WAP (wireless access point) in the network, the gas sensing data pass to remote server on the Internet by the wireless receiving and dispatching gateway by 3G network, remote server is responsible for the demonstration and the storage of system coordination, sensor object information, all reported datas are carried out the multinode information fusion handle, analyze source of leaks and diffusion tendency thereof poisonous, fuel gas.
System of the present invention adopts the wireless sensor network of being set up by on-the-spot sniffer of wireless gas and the self-organizing of wireless receiving and dispatching gateway based on WiFi, the on-the-spot sniffer of wireless gas is behind power-up initializing, attempt communicating by letter with wireless receiving and dispatching gateway or the on-the-spot sniffer of the wireless gas that adds network around it, join in the self-organizing network by them, the on-the-spot sniffer of wireless gas is after successfully adding network, except being responsible for reporting the microprocessor that is attached thereto by the RS-485 serial ports about poisonous, outside the testing result of fuel gas gas sensor, also be responsible for admitting the on-the-spot sniffer of other wireless gas to add network, and responsible relaying transmit free its to admit the needs of the on-the-spot sniffer of wireless gas that adds network to report to the data of wireless receiving and dispatching gateway; Behind the wireless receiving and dispatching gateway electrifying startup, set up one oneself to be the wireless network of administrative center, and begin to admit the on-the-spot sniffer of wireless gas to add network, the wireless receiving and dispatching gateway is according to the fixed time, periodic maintaining network is removed the inefficacy routing iinformation, adds newly-increased routing iinformation, the wireless receiving and dispatching gateway receives the data that the on-the-spot sniffers of all wireless gases report and uploads to the INTERNET network, the on-the-spot sniffer of 255 wireless gases of the maximum receivabilities of wireless receiving and dispatching gateway.
The on-the-spot sniffer of wireless gas of the present invention adopts the ARM chip technology, and to mainboard, CPU adopts 32 ARM9 chips of atmel corp with the system integration, the comprehensive and energy control module power consumption of performance.The on-the-spot sniffer of wireless gas mainly is made up of gas sensing module, digital signal processing module, wireless communication module, power module four parts.
With respect to scheme of the prior art, advantage of the present invention is:
Technical solution of the present invention is used for the wireless sensor network system of poisonous and combustible gas detecting, can reach long-range simultaneously by poisonous, the fuel gas data of network real-time monitoring at the scene.
Description of drawings
Below in conjunction with drawings and Examples the present invention is further described:
Fig. 1 is the network topological diagram of the distributed poisonous or combustible gas sensor detection network system of the embodiment of the invention;
Fig. 2 is the structural representation of the on-the-spot sniffer of the wireless gas of the embodiment of the invention;
Fig. 3 is the control circuit figure of the on-the-spot sniffer of the wireless gas of the embodiment of the invention.
Embodiment
Below in conjunction with specific embodiment such scheme is described further.Should be understood that these embodiment are used to the present invention is described and are not limited to limit the scope of the invention.The implementation condition that adopts among the embodiment can be done further adjustment according to the condition of concrete producer, and not marked implementation condition is generally the condition in the normal experiment.
Embodiment is shown in Fig. 1～3, this distributed poisonous or combustible gas sensor detection network system, both can carry out on-site supervision, can carry out remote monitoring again, comprise the on-the-spot sniffer of wireless gas, on-site supervision device and long-distance monitorng device, the on-the-spot sniffer of described wireless gas comprises gas sensing module, digital signal processing module, the wireless communication module of following the WIFI agreement and power module; Described gas sensing module detects poisonous or combustable gas concentration in the surrounding environment, and will detect information be connected into INTERNET network and long-distance monitorng device communication by wireless communication module by 3G network after digital signal processing module is handled; Form the self-organizing network of mutual communication between the on-the-spot sniffer of described wireless gas by the wireless communication module communication.
Digital signal processing module comprises processor and accepts the memory of processor read-write, and inventory analysis was handled after described processor was accepted the detection information of gas sensing module, and sent the transmitting-receiving instruction to wireless communication module.32 ARM9 chips of described microprocessor atmel corp connect wireless communication module by the RS-485 serial ports, and described wireless communication module is to the detection information of each toxic combustible gas sensor of microprocessor poll.
Described gas sensing module comprises gas sensor and D/A converting circuit, after the concentration of toxic gases, converts digital signal to by supporting D/A converting circuit and exports to digital signal processing module in the described gas sensor collection surrounding being monitored.Power module provides the power supply support for gas sensing module, digital signal processing module, wireless communication module.
Described wireless communication module comprises transceiver, 3G network interface card and WIFI network interface card, and the detection information of toxic combustible gas sensor is accepted and sent to described transceiver; Described wireless communication module is followed the wireless MAC agreement, organizes themselves into wireless route with the on-the-spot sniffer wireless communication module of other wireless gas.Wireless receiving and dispatching gateway, described wireless receiving and dispatching gateway are accepted the detection information of the toxic combustible gas sensor of the wireless route transmission of reception, and the forwarding of detection information is uploaded to the INTERNET network.
The self-organizing network communication of the on-the-spot sniffer formation of on-the-spot sniffer of gas or wireless gas that described on-site supervision device is direct and wireless, the detection information of accepting wireless route or wireless gas scene sniffer realizes on-site supervision.Described long-distance monitorng device comprises remote server, described long-distance monitorng device is connected into the INTERNET network, and the toxic combustible gas of accepting the self-organizing network transmission of on-the-spot sniffer of wireless gas or the on-the-spot sniffer formation of wireless gas by the INTERNET network detects information.Described remote server is responsible for coordinating whole detection network system, show that storing the on-the-spot sniffer of wireless gas detects information, and all detection information reported datas are carried out the multinode information fusion handle, analyze source of leaks and diffusion tendency poisonous, fuel gas.
When monitoring, behind the on-the-spot sniffer power-up initializing of wireless gas, wireless communication module begins to carry out the adding trial of self-organizing network; When not having self-organizing network, create self-organized network nodes, accept the adding of the on-the-spot sniffer of other wireless gases; Toxic combustible gas information in the surrounding environment is caught in the collection of the on-the-spot sniffer gas sensing of wireless gas module, and the information that will detect is transferred to the on-the-spot sniffer of other wireless gases of self-organizing network or is uploaded to long-distance monitorng device by self-organizing network by self-organizing network; Long-distance monitorng device carries out the on-site supervision or the remote monitoring of poisonous or fuel gas according to the gas information that receives.
Poisonous, combustible gas sensor is responsible for detecting the concentration of toxic gases in the surrounding air, and testing result is exported with digital signaling; Each wireless communication terminal is connected with digital signal processing module by the RS-485 serial ports, inquiry according to the fixed time gap periods is poisonous, the testing result of combustible gas sensor, and the wireless route that forms by self-organization network reports remote monitoring device with testing result; When having the such wireless receiving and dispatching gateway of WAP (wireless access point) in the network, the gas sensing data pass to remote server on the Internet by the wireless receiving and dispatching gateway by 3G network, remote server is responsible for the demonstration and the storage of system coordination, sensor object information, all reported datas are carried out the multinode information fusion handle, analyze source of leaks and diffusion tendency thereof poisonous, fuel gas.
Above-mentioned example only is explanation technical conceive of the present invention and characteristics, and its purpose is to allow the people who is familiar with this technology can understand content of the present invention and enforcement according to this, can not limit protection scope of the present invention with this.All equivalent transformations that spirit is done according to the present invention or modification all should be encompassed within protection scope of the present invention.
Claims (10)
1. distributed poisonous or combustible gas sensor detection network system, comprise on-the-spot sniffer of wireless gas and long-distance monitorng device, it is characterized in that the on-the-spot sniffer of described wireless gas comprises gas sensing module, digital signal processing module and follows the wireless communication module of WIFI agreement; Described gas sensing module detects poisonous or combustable gas concentration in the surrounding environment, and will detect information be connected into INTERNET network and long-distance monitorng device communication by wireless communication module by 3G network after digital signal processing module is handled; Form the self-organizing network of mutual communication between the on-the-spot sniffer of described wireless gas by the wireless communication module communication.
2. distributed poisonous or combustible gas sensor detection network system according to claim 1, it is characterized in that described digital signal processing module comprises processor and accepts the memory that processor is read and write, inventory analysis was handled after described processor was accepted the detection information of gas sensing module, and sent the transmitting-receiving instruction to wireless communication module.
3. distributed poisonous or combustible gas sensor detection network system according to claim 2, it is characterized in that described gas sensing module comprises gas sensor and D/A converting circuit, after the concentration of toxic gases, convert digital signal to by supporting D/A converting circuit and export to digital signal processing module in the described gas sensor collection surrounding being monitored.
4. distributed poisonous or combustible gas sensor detection network system according to claim 2, it is characterized in that described microprocessor connects wireless communication module by the RS-485 serial ports, described wireless communication module is to the detection information of each toxic combustible gas sensor of microprocessor poll.
5. distributed poisonous or combustible gas sensor detection network system according to claim 2, it is characterized in that described wireless communication module comprises transceiver, 3G network interface card and WIFI network interface card, the detection information of toxic combustible gas sensor is accepted and sent to described transceiver; Described wireless communication module is followed the wireless MAC agreement, organizes themselves into wireless route with the on-the-spot sniffer wireless communication module of other wireless gas.
6. distributed poisonous or combustible gas sensor detection network system according to claim 5, it is characterized in that described system also comprises the wireless receiving and dispatching gateway, described wireless receiving and dispatching gateway is accepted the detection information of the toxic combustible gas sensor of the wireless route transmission of reception, and the forwarding of detection information is uploaded to the INTERNET network.
7. distributed poisonous or combustible gas sensor detection network system according to claim 5, it is characterized in that described system also comprises the on-site supervision device, the self-organizing network communication of the on-the-spot sniffer formation of on-the-spot sniffer of gas or wireless gas that described on-site supervision device is direct and wireless, the detection information of accepting wireless route or wireless gas scene sniffer realizes on-site supervision.
8. distributed poisonous or combustible gas sensor detection network system according to claim 1, it is characterized in that described long-distance monitorng device comprises remote server, described long-distance monitorng device is connected into the INTERNET network, and the toxic combustible gas of accepting the self-organizing network transmission of on-the-spot sniffer of wireless gas or the on-the-spot sniffer formation of wireless gas by the INTERNET network detects information.
9. distributed poisonous or combustible gas sensor detection network system according to claim 8, it is characterized in that described remote server is responsible for coordinating whole detection network system, show that storing the on-the-spot sniffer of wireless gas detects information, and all detection information reported datas are carried out the multinode information fusion handle, analyze source of leaks and diffusion tendency poisonous, fuel gas.
10. poisonous or fuel gas method for supervising based on 3G and WIFI wireless network is characterized in that described method comprises:
(1) behind the on-the-spot sniffer power-up initializing of wireless gas, wireless communication module begins to carry out the adding trial of self-organizing network; When not having self-organizing network, create self-organized network nodes, accept the adding of the on-the-spot sniffer of other wireless gases;
(2) toxic combustible gas information in the surrounding environment is caught in the collection of the on-the-spot sniffer gas sensing of wireless gas module, and the information that will detect is transferred to the on-the-spot sniffer of other wireless gases of self-organizing network or is uploaded to long-distance monitorng device by self-organizing network by self-organizing network;
(3) long-distance monitorng device carries out the on-site supervision or the remote monitoring of poisonous or fuel gas according to the gas information that receives.
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| CN103399555A (en) * | 2013-08-12 | 2013-11-20 | 山东兖矿国拓科技工程有限公司 | Wireless intelligent monitoring system for combustible and toxic gas |
| CN103852557A (en) * | 2012-11-29 | 2014-06-11 | 苏州申贝仪器有限公司 | Visual mobile multi-parameter hazardous gas detection device |
| CN104713985A (en) * | 2013-12-17 | 2015-06-17 | 徐通 | Wireless sensor-based mine environment harmful gas detection system |
| CN106448080A (en) * | 2016-09-20 | 2017-02-22 | 北京工业大学 | Small-space volatile inflammable liquid detection system based on sensor-network sniffing |
| CN106534358A (en) * | 2016-12-12 | 2017-03-22 | 浙江求是人工环境有限公司 | Monitoring data transmission networking system and method based on 433MHz Cobweb protocol |
| CN111665177A (en) * | 2020-06-11 | 2020-09-15 | 太原理工大学 | Laboratory protection system based on object recognition, toxic gas and heat source detection |
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| CN111665177A (en) * | 2020-06-11 | 2020-09-15 | 太原理工大学 | Laboratory protection system based on object recognition, toxic gas and heat source detection |
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Application publication date: 20110112 |