CN102621970A - Urban industrial gas safety intelligent monitoring system based on Internet of Things and urban industrial gas safety intelligent monitoring method - Google Patents
Urban industrial gas safety intelligent monitoring system based on Internet of Things and urban industrial gas safety intelligent monitoring method Download PDFInfo
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Abstract
The invention discloses an urban industrial gas safety intelligent monitoring system based on the Internet of Things (IOT) and an urban industrial gas safety intelligent monitoring method, relates to an urban industrial gas safety intelligent monitoring system and an urban industrial gas safety intelligent monitoring method, and aims to solve the problems that as the monitoring coverage of a regional and independent gas monitoring system adopted in the prior art is small, urban industrial gas cannot be monitored safely and integrally and the monitoring reliability is poor. The urban industrial gas safety intelligent monitoring system controls and processes emergent hidden dangers in a real time manner and effectively alarms and processes the potential hidden dangers on the basis of an information collecting and transmitting network and a multi-step monitoring and managing system with stepped monitoring systems and a centralized monitoring system of the IOT and in combination with an intelligent analyzing, judging and adjudicating system. The urban industrial gas safety intelligent monitoring system has the advantages of reasonable layering of a monitoring and managing network, high intelligent degree, multiple detecting terminal, strong anti interference performance, high reliability and flexible layout manner, and is convenient to manage and maintain. The urban industrial gas safety intelligent monitoring system and the urban industrial gas safety intelligent monitoring method are suitable for intelligently monitoring the safety of urban industrial gases.
Description
Technical field
The present invention relates to a kind of urban industry gas safety and intelligent monitoring system and detection method.
Background technology
Internet of Things (The Internet of things) is the important component part of generation information technology, and its integrated application computer networking technology, the communication technology, sensing technology on basis, original internet constitutes the huge network of " all things on earth is interconnected ".
Cloud computing (cloud computing) is based on increase, use and the delivery mode of the related service of internet, is usually directed to provide through the internet dynamically be prone to expansion and often be virtualized resource.It can pass through network expansion resource requirement as required, and system reduces hardware and software cost.
Wireless sensor network (Wireless Sensor Networks, be called for short WSN) is the product that this three technology of calculating, communication and sensor combines, and wireless sensor network is normally operated in the abominable even dangerous remote environment that the people can't be approaching.
Fieldbus (Field Bus) technology is a kind of control technology that integrates computer technology, the communication technology, integrated circuit technique and intelligent control technology; According to the definition of the IEC61158 standard of International Electrotechnical Commission, the communication network that it is two-way for carrying out between field apparatus and the opertaing device, serial, multinode are communicated by letter.
Expert system (Expert System) is to utilize the computer model of human expert's reasoning to handle to handle the challenge that needs the expert to make explanations in the real world, and knowledge base and inference machine are the cores of expert system.Knowledge bases all capable of using such as on-line fault diagnosis (On-Line Fault Diagnosis), gas spreading trend are judged, best accident treatment measure is chosen and corresponding inference mechanism are made and being judged and ruling.
The detection of industrial gasses has crucial meaning to urban safety.Mostly existing industrial gasses security monitoring platform is zonal, independence, lack environment, meteorology, public resource equal angles analysis-by-synthesis and management industrial gasses safety from entire city.
The number of existing internet-of-things terminal is being on the increase; This functional reliability to internet-of-things terminal has proposed higher requirement; Internet-of-things terminal also usually breaks down in the practical application, the express-analysis source of failure and type, and proposition maintenance scheme has great significance.
Existing industrial gasses supervisory system is provided with remote monitoring center more, can accomplish functions such as Realtime Alerts, but software and hardware resources is less, and function singleness can't satisfy the needs of multi-angular analysis, unified plan.
Existing industry is flammable/and the poisonous gas detecting instrument device has multiplely, can be divided into according to the mode that realizes function: portable or stationary gas detector, gas detection transmitter, bus-type gas detection alarm system, radio-type gas detecting system.They all have range of application separately.But in the actual industrial scene, single using gases transmitter/bus-type gas detection alarm or radio-type gas detecting system can not be taken into account equipment cost, operation cost and complex industrial environment.
Tradition is flammable/and the poisonous gas detection device adopts the catalytic combustion-type sensor to obtain gas concentration information more, and the advantage of this sensor is that cost is low, the output linearity is good, and shortcoming is that the life-span is short; For guaranteeing precision, need demarcate once every half a year; Need first preheating a few minutes then could operate as normal before using, power consumption be big.These characteristics make catalytic combustion type gas sensor in the bus-type gas detection system, still have the value of existence, and in the radio-type gas detection system is used, exist fatal shortcoming.
Summary of the invention
The present invention causes can't realizing urban industry gas safety is carried out the problem of whole monitoring, monitoring reliability difference in order to solve the existing gas monitoring system of regionality, independence that adopts because it monitors coverage rate for a short time, thereby a kind of urban industry gas safety and intelligent monitoring system and monitoring method based on Internet of Things is provided.
Based on the urban industry gas safety and intelligent monitoring system of Internet of Things, it comprises M local gas detection subnet, remote monitoring platform and cloud computing platform,
Include a radio communication base station and N wireless gas detection terminal in each local gas detection subnet, N wireless gas detection terminal is used to detect the gas concentration of this local gas detection subnet location; N wireless gas detection terminal all with this local gas detection subnet in the radio communication base station radio communication;
Radio communication base station in each local gas detection subnet is all realized data interaction through Ethernet and remote monitoring platform;
Remote monitoring platform and cloud computing platform are realized data interaction through Ethernet;
M is a positive integer; N is a positive integer.
It also comprises gps system, and N GPS terminal arranged in the said gps system, and each GPS terminal and a wireless gas detection terminal are fixed together, and the monitor supervision platform of gps system is realized data interaction through Ethernet and remote monitoring platform.
It also comprises city video monitoring system; The N of a city video monitoring system monitor terminal is respectively applied for the video information of taking N region, wireless gas detection terminal, and the monitor supervision platform of city video monitoring system is realized data interaction through Ethernet and remote monitoring platform.
It also comprises the co simulate system, and said co simulate system is used for urban industry gas accident is simulated, and said co simulate system is through Ethernet and remote monitoring platform realization data interaction.
The co simulate system utilizes the mode simulation technology, GIS is technological and instant weather information realizes.
Wireless gas detection terminal is a field bus type gas concentration detector or based on the gas detector of Zigbee technology.
Based on the urban industry gas safe and intelligent monitoring method of said system, it is realized by following steps:
Step 1, in each local gas detection subnet, adopt N wireless gas detection terminal to measure the gas concentration of this LAN covering area, and said gas concentration sent to the radio communication base station in this local gas detection subnet;
Radio communication base station in step 2, each local gas detection subnet judges one by one whether N the detected gas concentration value in wireless gas detection terminal surpasses preset concentration value; When the detected gas concentration value in one or more wireless gas detection terminal surpassed preset concentration value, then execution in step three; Otherwise then execution in step four;
Radio communication base station in step 3, this local gas detection subnet will be sent to remote monitoring platform through Ethernet above the end message and the gas concentration value at the wireless gas detection terminal of preset concentration value; And return execution in step one;
In the step 5, also comprise the steps: to judge when having the gas security incident in certain local gas detection subnet when remote monitoring platform, remote monitoring platform calls gps system, and the place that the gas security incident takes place is positioned.
In the step 5, also comprise the steps: to judge when having the gas security incident in this local gas detection subnet when remote monitoring platform, remote monitoring platform calls city video monitoring system, and video capture is carried out in the place that the gas security incident takes place.
In the step 5; Also comprise the steps: to judge when having the gas security incident in this local gas detection subnet when remote monitoring platform; Remote monitoring platform calls the co simulate system, and gaseous diffusion scope, developmenting spread trend and the best relief route in place that the gas security incident takes place are simulated.
The present invention can monitor urban industry gas, detects wide coverage, and monitoring reliability is high.
Description of drawings
Fig. 1 is the structural representation of monitoring system of the present invention; Fig. 2 is the structural representation of embodiment five; Fig. 3 is the structural representation of the radio-type gas detector described in the embodiment six; Fig. 4 is the structural representation of the bus-type gas detector described in the embodiment six; Wherein mark 41 is a power lead; 42 is order wire; Fig. 5 is the structural representation of the local gas alarm controller described in the embodiment six; Wherein mark 51 is an order wire; 52 is power lead; Fig. 6 is the transducer calibration schematic flow sheet; Fig. 7 is a fault testing mechanism principle schematic.
Embodiment
Embodiment one, combination Fig. 1 explain this embodiment, and based on the urban industry gas safety and intelligent monitoring system of Internet of Things, it comprises M local gas detection subnet, remote monitoring platform 2 and cloud computing platform 3,
Include a radio communication base station 11 and N wireless gas detection terminal 12 in each local gas detection subnet, N wireless gas detection terminal 12 is used to detect the gas concentration of this local gas detection subnet location; N wireless gas detection terminal 12 all with this local gas detection subnet in radio communication base station 11 radio communications;
Radio communication base station 11 in each local gas detection subnet is all realized data interaction through Ethernet and remote monitoring platform 2;
M is a positive integer; N is a positive integer.
Principle of work: the gas concentration information of each department is gathered at wireless gas detection terminal 12 in real time, and with data upload; Radio communication base station 11 receives the data of being uploaded by wireless gas detection terminal 12, and carries out analyzing and processing, then through GPRS/CDMA/GSM/3G/4G network insertion INTERNET network, and when gas concentration surpasses alarm threshold value, sends alerting signal; Remote monitoring platform 2 is arranged on urban industry gas safety monitoring center; Through the long-range reception of INTERNET network real-time each department gas concentration situation; Utilize multiple information comprehensive analysis such as 3 pairs of gas concentration data of INTERNET net and cloud computing platform, geographic position; According to existing mathematical model prediction gaseous diffusion trend, with the optimum processing scheme of proposition accident.
Functions such as remote monitoring platform 2 needed data analyses, modelling send to cloud computing platform 3 through network or other data communication interface with order; Utilize the software and hardware resource of cloud computing platform 3 to accomplish these tasks, cloud computing platform 3 turns back to remote monitoring platform 2 with the result then; The data message of remote monitoring platform 2 also can be sent to the cloud storage terminal through data communication interface; Remote monitoring platform 2 required partial datas also can or obtain through the other-end that links to each other with cloud computing platform from cloud computing platform 3.
The present invention is based on the information acquisition and the transmission network of Internet of Things; The multilevel monitor of hierarchical monitoring and central Centralized Monitoring and management system; And combined with intelligent analysis, judgement and ruling system; Emergency safety hidden danger is carried out controlled in real-time and processing, potential potential safety hazard is effectively reported to the police and rectified and improved.Its advantage is that monitoring is reasonable with the supervising the network layering, and intelligent degree is high, and institute be with that to survey the terminal many, strong interference immunity, and the reliability height, layout type is flexible, administers and maintains convenience.And native system has the fault self-checking function; It is the detection failure source effectively, and this fault detection system is divided into three grades, and they are respectively: remote monitoring platform fault analysis mechanism; Local gas security terminal fault detection mechanism, the gas detector fault detection mechanism.Fault analysis mechanism in telemanagement center is through existing knowledge base and corresponding inference mechanism; Fault signature analysis when system is broken down is handled; Infer the information such as consequence that system failure place, fault type, trouble hunting method, fault possibly brought, thereby avoid the casualties and the economic loss that cause because of system's faults itself.
The difference of the described urban industry gas safety and intelligent monitoring system based on Internet of Things of embodiment two, this embodiment and embodiment one is; It also comprises gps system 4; N GPS terminal arranged in the said gps system 4; Each GPS terminal and a wireless gas detection terminal 12 are fixed together, and the monitor supervision platform of gps system 4 is realized data interaction through Ethernet and remote monitoring platform 2.
This embodiment utilizes gps system to confirm to report to the police accurately the address, and on planimetric map, carries out automatic mark coordinate, scope, peripheral traffic and ambient conditions etc.
The difference of the described urban industry gas safety and intelligent monitoring system based on Internet of Things of embodiment three, this embodiment and embodiment two is; It also comprises city video monitoring system 5; The N of city video monitoring system 5 monitor terminal is respectively applied for the video information of taking N 12 regions, wireless gas detection terminal, and the monitor supervision platform of city video monitoring system 5 is realized data interaction through Ethernet and remote monitoring platform 2.
This embodiment utilizes existing city video monitoring system that video observation is carried out in the place where the accident occurred.
The difference of the described urban industry gas safety and intelligent monitoring system based on Internet of Things of embodiment four, this embodiment and embodiment three is; It also comprises co simulate system 6; Said co simulate system 6 is used for urban industry gas accident is simulated, and said co simulate system 6 is through Ethernet and remote monitoring platform 2 realization data interactions.
This embodiment utilizes the mode simulation technology, GIS is technological and instant accident (disaster) range of scatter, developmenting spread trend, best relief route etc. are demonstrated and cooked up to instant weather information.Thereby through analyzing the conclusion circular rapidly and accurately this information and data relevant departments are rushed towards the site disposal relief, and the remote command instruction can be provided.
Can also do with preliminary calamity damage evaluation the damage that disaster caused through systematic analysis.
The difference of the described urban industry gas safety and intelligent monitoring system based on Internet of Things of embodiment five, this embodiment and embodiment four is that co simulate system 6 utilizes the mode simulation technology, GIS is technological and instant weather information realizes.
The difference of the described urban industry gas safety and intelligent monitoring system based on Internet of Things of embodiment six, this embodiment and embodiment one is, wireless gas detection terminal 12 is a field bus type gas concentration detector or based on the gas detector of Zigbee technology.
The structure of the field bus type gas detector in this embodiment is as shown in Figure 4, and it selects catalytic combustion-type or infrared type gas sensor for use.The advantage of catalytic combustion type gas sensor is that cost is low, and the linearity is good, and power consumption is big but less for the influence of bus-type equipment; The advantage of infrared type gas sensor is that it is highly sensitive, and mission life can reach 5 years, and does not need in the use to demarcate, and the sensor intoxicating phenomenon can not occur.
The 2.5V power supply of catalytic combustion type gas sensor adopts HF switch type DC converting chip, and (switching frequency >=1.5MHz), transformation efficiency can reach 90%.
Bus-type/radio-type gas detector sensor demarcation mode in use is that detector is exempted from opening, exempted to operate scaling method.That is: at first detector is returned to zero.Zeroing work is accomplished by alarm controller, and alarm controller sends the detector demarcation signal then, and detector will be in pre-set demarcation state successively.When normal concentration gas was fed detector probe, detector began to demarcate automatically, and after after a while, this detector is accomplished the demarcation of this concentration.Change another normal concentration gas and place the detector probe place, detector begins the staking-out work of another concentration point, and this detector is accomplished and demarcated after a period of time.After removing normal concentration gas, detector gets into the gas concentration detected state automatically.This moment, next detector got into the demarcation state automatically, and as above repeatable operation can be accomplished exempting from opening, exempting from operation and demarcate of detector.
The demarcation flow process of gas detector is as shown in Figure 6.Gas detector can not change the detection accuracy of sensor in theory after demarcating completion.
Based on the gas detector (coordinator node, routing node, gas detector terminal node) of Zigbeer technology, as shown in Figure 3, adopt the integrated SoC of monolithic to realize, as: the CC2530 of TI company (8051 kernel).The protocol stack that system uses is the ZigBee2007 protocol stack Z-Stack that TI company provides; This protocol stack has been realized Physical layer and the standard of data link layer and network layer and the application layer standard of ZigBee of IEEE802.15.4, preferably resolves the wireless sensor network connectivity scenario.
Adopt based on the sensor of the gas detector terminal node of ZigBee wireless technology to need not preheating, low-power consumption type gas sensor, like electrochemical gas sensor, infrared gas sensor.
Gas detector terminal node and routing node based on the ZigBee wireless technology adopt solar panel and accumulator dual power supply, and solar panel adopts the floating charge mode to charge a battery when bright and clear, also give other circuit supplies simultaneously.When insufficient light, electric power management circuit automatically switches to accumulator with power supply source.
Gas detector terminal node, field bus type gas detector based on the ZigBee wireless technology all have the fault self-checking function; When breaking down; Can failure message be uploaded to the local gas alarm controller with specific fault code and fail address, the structure of local gas alarm controller meaning as shown in Figure 5.The principle of fault detection mechanism is as shown in Figure 7.
Coordinator node, field bus type main control node based on the ZigBee wireless technology all are integrated in the local gas alarm controller.
The local gas alarm controller has functions such as gas concentration demonstration, digital quantity output, warning, fault detect, and it can also be uploaded to remote monitoring platform through wireless network with gas concentration information and failure message.
The local gas alarm controller is taked the separate type circuit layout.Convenient debugging and system maintenance.
Embodiment seven, based on the urban industry gas safe and intelligent monitoring method of embodiment one, it is realized by following steps:
Step 1, in each local gas detection subnet, adopt N wireless gas detection terminal 12 to measure the gas concentration of these LAN covering areas, and said gas concentration sent to the radio communication base station 11 in this local gas detection subnet;
Radio communication base station 11 in step 2, each local gas detection subnet judges one by one whether N wireless gas detection terminal 12 detected gas concentration value surpass preset concentration value; When one or more wireless gas detection terminal 12 detected gas concentration value surpassed preset concentration value, then execution in step three; Otherwise then execution in step four;
Radio communication base station 11 in step 3, this local gas detection subnet will be sent to remote monitoring platform 2 through Ethernet above the end message and the gas concentration value at the wireless gas detection terminal 12 of preset concentration value; And return execution in step one;
In the step 5, also comprise the steps: to judge when having the gas security incident in certain local gas detection subnet when remote monitoring platform 2, remote monitoring platform 2 calls gps system, and the place that the gas security incident takes place is positioned.
In the step 5, also comprise the steps: to judge when having the gas security incident in this local gas detection subnet when remote monitoring platform 2, remote monitoring platform 2 calls city video monitoring system, and video capture is carried out in the place that the gas security incident takes place.
In the step 5; Also comprise the steps: to judge when having the gas security incident in this local gas detection subnet when remote monitoring platform 2; Remote monitoring platform 2 calls the co simulate system, and gaseous diffusion scope, developmenting spread trend and the best relief route in place that the gas security incident takes place are simulated.
Claims (10)
1. based on the urban industry gas safety and intelligent monitoring system of Internet of Things, it is characterized in that: it comprises M local gas detection subnet, remote monitoring platform (2) and cloud computing platform (3),
Include a radio communication base station (11) and N wireless gas detection terminal (12) in each local gas detection subnet, N wireless gas detection terminal (12) is used to detect the gas concentration of this local gas detection subnet location; N wireless gas detection terminal (12) all with this local gas detection subnet in radio communication base station (11) radio communication;
Radio communication base station (11) in each local gas detection subnet is all realized data interaction through Ethernet and remote monitoring platform (2);
Remote monitoring platform (2) and cloud computing platform (3) are realized data interaction through Ethernet;
M is a positive integer; N is a positive integer.
2. the urban industry gas safety and intelligent monitoring system based on Internet of Things according to claim 1; It is characterized in that it also comprises gps system (4); N GPS terminal arranged in the said gps system (4); An each GPS terminal and a wireless gas detection terminal (12) are fixed together, and the monitor supervision platform of gps system (4) is realized data interaction through Ethernet and remote monitoring platform (2).
3. the urban industry gas safety and intelligent monitoring system based on Internet of Things according to claim 2; It is characterized in that it also comprises city video monitoring system (5); N monitor terminal of city video monitoring system (5) is respectively applied for the video information of taking N region, wireless gas detection terminal (12), and the monitor supervision platform of city video monitoring system (5) is realized data interaction through Ethernet and remote monitoring platform (2).
4. the urban industry gas safety and intelligent monitoring system based on Internet of Things according to claim 3; It is characterized in that it also comprises co simulate system (6); Said co simulate system (6) is used for urban industry gas accident is simulated, and said co simulate system (6) realizes data interaction through Ethernet and remote monitoring platform (2).
5. the urban industry gas safety and intelligent monitoring system based on Internet of Things according to claim 4 is characterized in that co simulate system (6) utilizes the mode simulation technology, GIS is technological and instant weather information realizes.
6. the urban industry gas safety and intelligent monitoring system based on Internet of Things according to claim 1 is characterized in that wireless gas detection terminal (12) is for field bus type gas concentration detector or based on the technological gas detector of Zigbee.
7. based on the urban industry gas safe and intelligent monitoring method of claim 1, it is characterized in that: it is realized by following steps:
Step 1, in each local gas detection subnet, adopt N wireless gas detection terminal (12) to measure the gas concentration of this LAN covering area, and said gas concentration sent to the radio communication base station (11) in this local gas detection subnet;
Radio communication base station (11) in step 2, each local gas detection subnet judges one by one whether N the detected gas concentration value in wireless gas detection terminal (12) surpasses preset concentration value; When the detected gas concentration value in one or more wireless gas detection terminals (12) surpassed preset concentration value, then execution in step three; Otherwise then execution in step four;
Radio communication base station (11) in step 3, this local gas detection subnet will be sent to remote monitoring platform (2) through Ethernet above the end message and the gas concentration value at the wireless gas detection terminal (12) of preset concentration value; And return execution in step one;
Step 4, remote monitoring platform (2) calculate the gas concentration value that receives and store through cloud computing platforms (3), and result of calculation is back to remote monitoring platform (2);
Step 5, remote monitoring platform (2) judge in each local gas detection subnet whether have the gas security incident one by one according to the result of calculation that step 4 obtains, thereby realize the intellectual monitoring of urban industry gas safety.
8. urban industry gas safe and intelligent monitoring method according to claim 7; It is characterized in that in the step 5; Also comprise the steps: to judge when having the gas security incident in certain local gas detection subnet when remote monitoring platform (2); Remote monitoring platform (2) calls gps system, and the place that the gas security incident takes place is positioned.
9. urban industry gas safe and intelligent monitoring method according to claim 7; It is characterized in that in the step 5; Also comprise the steps: to judge when having the gas security incident in this local gas detection subnet when remote monitoring platform (2); Remote monitoring platform (2) calls city video monitoring system, and video capture is carried out in the place that the gas security incident takes place.
10. urban industry gas safe and intelligent monitoring method according to claim 7; It is characterized in that in the step 5; Also comprise the steps: to judge when having the gas security incident in this local gas detection subnet when remote monitoring platform (2); Remote monitoring platform (2) calls the co simulate system, and gaseous diffusion scope, developmenting spread trend and the best relief route in place that the gas security incident takes place are simulated.
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