CN102497412A - Wireless sensor network (WSN)-based staff tracking and monitoring system for petrochemical sulfur-containing device - Google Patents
Wireless sensor network (WSN)-based staff tracking and monitoring system for petrochemical sulfur-containing device Download PDFInfo
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- CN102497412A CN102497412A CN2011104064545A CN201110406454A CN102497412A CN 102497412 A CN102497412 A CN 102497412A CN 2011104064545 A CN2011104064545 A CN 2011104064545A CN 201110406454 A CN201110406454 A CN 201110406454A CN 102497412 A CN102497412 A CN 102497412A
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Abstract
The invention discloses a wireless sensor network (WSN)-based staff tracking and monitoring system for a petrochemical sulfur-containing device. A sulfur-containing device monitoring area is divided into a plurality of monitoring cells (2). A plurality of sensor nodes (1) and a sink node (6) of the sensor nodes (1) are deployed in each monitoring cell (2). The sink node (6) is connected with an intra-plant computer network (5) through a gateway node (4). A portable hydrogen sulfide (H2S) detector capable of acquiring the concentration of H2S at the position of the detector and performing positioning and information transmission through wireless communication modules of the sensor nodes (1) is provided. By the system, the concentration of the H2S and the position and safety of staff on the scene can be monitored in a centralized way, and H2S poisoning accidents can be effectively prevented.
Description
Technical field
The present invention relates to a kind of local supervising and measuring equipment that is used for petrochemical iy produced, is a kind of petrochemical industry sulfur-bearing device employee tracing and monitoring system based on WSN specifically.
Background technology
In petrochemical industry, sulphur is the nonhydrocarbon element main in the oil, that content is maximum, hydrogen sulfide (H
2S) being present in each link of oil exploitation, refining processing, is the most important chemical toxicant of petroleum chemical enterprise.H
2Possibility that S take place to poison in petrochemical industry and generality are far above other industry.Along with the increase of oil play processing import high-sulphur crude, H
2The control that S poisons becomes the important topic that enterprise does the employment security health well.In the face of H2S harm, the situation of monitoring process of factory production sulfur-bearing thing is the important measures that directly reduce factory's loss and ensure safety in production.
Hydrogen sulfide detection method commonly used has:
1, chemical method: promptly, then the sample that samples is measured in the laboratory, also had the scene to measure through on-the-spot sampling; The advantage of this method is that certainty of measurement is high; But this method measures that program is loaded down with trivial details, to obtain data untimely, bring shortcomings such as danger also can for sometimes the mensuration personnel.
2, the direct determination method of electronics: adopt semiconductor gas sensor, have to measure rapidly, be beneficial to and on-the-spotly use, have warning etc. and enrich advantages such as function; But evaluated error is bigger, costs an arm and a leg.
In the electronics determination method, fixed H is adopted in legacy network monitoring both at home and abroad
2The S detection system.Fixed H
2H in the S detection system
2S gas intelligent detecting device picks up H in the environment
2The S concentration information converts the signal of telecommunication to, and utilizes the fieldbus that connects that information is passed.System obtains the H of production process through real-time online measuring
2The S concentration curve.But because monitoring terminal and main control terminal adopt wire communication, the serious infrastructure that relies on of communication.Simultaneously, in design, receive the wiring restriction, the quantities that connects up, relocates is big, and circuit damages easily, and node is not removable in the net.Particularly in the time will linking up the node of apart from each other, the cable wiring manufacture difficulty of laying dedicated communication line is big, expense is high, length consuming time, the networking demand that enlarges is rapidly formed serious bottleneck block.
WSN is by having wireless communication ability, volume is little, the limited sensor node of the energy is formed wireless network in a large number.WSN is applied to the monitoring of petroleum chemical enterprise's device; Can be through being distributed in the dissimilar sensor node in different monitoring zone in a large number; The difficulty of solution harmful biochemical gas concentration of manual type in-site measurement under the high-risk environment; Overcome in the wire communication difficult problems such as system is huge, difficult installation simultaneously, help improving the confidence level and the efficient of monitoring harmful gases.In the production procedure of petroleum chemical industry; Many devices all can produce sulfur dioxide; So the situation of sulfur-bearing thing reaches the employee is carried out tracing and monitoring in the real time on-line monitoring production process, to doing safety in production well, guaranteeing that workman's life security has great social significance and realistic meaning.
Summary of the invention
But the situation that the purpose of this invention is to provide sulfur-bearing thing in a kind of on-line monitoring production process reaches the petrochemical industry sulfur-bearing device employee tracing and monitoring system based on WSN that the employee is carried out tracing and monitoring.
Petrochemical industry sulfur-bearing device employee tracing and monitoring system based on WSN provided by the invention; Sulfur-bearing assembly monitor zone is divided into a plurality of monitor cell; Each monitor cell is disposed a plurality of sensor nodes and is settled the aggregation node of these sensor nodes, and aggregation node is connected through computer network in gateway node and the factory; And setting can be to the H of present position
2S concentration is gathered and is positioned and transmit the portable H of information through the wireless communication module of sensor node.
Have in 3～5 adjacent or close sensor nodes of each monitor cell one be used for compiling Monitoring Data leader's node.
Portable H is made up of CC2431 governor circuit, power circuit, temperature and humidity sensing circuit, hydrogen sulfide testing circuit, liquid crystal display circuit and warning circuit.
The present invention has following advantage:
This portable H can be used as a node in the network; Can be worn on field personnel's the body as moving target; Both can accomplish the function of conventional H table, accomplish concentration of hydrogen sulfide, the collection of humiture, demonstration, warning; But also has radio communication function; The information such as concentration of hydrogen sulfide, humiture, position that will collect are connected through computer network in wireless sensor network and the factory; Realize upper monitoring center remote monitoring; Concentrate the concentration of hydrogen sulfide of on-site supervision and staff's position, security situation, prevented the generation of hydrogen sulfide poisoning accident effectively.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is the circuit theory diagrams of portable H of the present invention.
Embodiment
See figures.1.and.2; Petrochemical industry sulfur-bearing device employee tracing and monitoring system based on WSN provided by the invention; Sulfur-bearing assembly monitor zone is divided into a plurality of monitor cell 2; Each monitor cell 2 is disposed a plurality of sensor nodes 1 and is settled the aggregation node 6 of these sensor nodes, and aggregation node 6 is connected through computer network 5 in gateway node 4 and the factory; And setting can be to the H of present position
2S concentration is gathered and is positioned and transmit the portable H of information through the wireless communication module of sensor node 1.
In above-mentioned, have in 3～5 adjacent or close sensor nodes 1 of each monitor cell one be used for compiling Monitoring Data leader's node 3.
Portable H is made up of CC2431 governor circuit, power circuit, temperature and humidity sensing circuit, hydrogen sulfide testing circuit, liquid crystal display circuit and warning circuit.
In above-mentioned, the normal detection range of the concentration of hydrogen sulfide of portable H is 0～50ppm; Alarm setting value is 10ppm, when the concentration of hydrogen sulfide in detecting environment transfinites, sends alarm; Liquid crystal display circuit is the concentration of hydrogen sulfide and the humiture of display environment in real time, can provide prompting when concentration of hydrogen sulfide transfinites in detecting environment.
The CC2431 governor circuit is the core of whole portable H, mainly is to the signal that sensor transmissions the is come collection of advancing, and handles and encode, and sends through radio communication then.The function of whole ZigBee protocol stack also will be realized by the software and hardware of node module, the for example reception of data, transmission, and each layer function of protocol stack is realized.In addition, CC2431 inside has engine of positioning, does not need other hardware of annex just can realize the some bit function of design.
The present invention is owing to adopted according to the very high CC2431 chip of integrated level; Its chip internal is the integrated radio frequency 2.4GHz transceiver of A/D, processor, RAM, ROM and a superior performance only need add battery-powered power module, resets, clock module, antenna just can form node module; Circuit implements fairly simple, good reliability.
The hydrogen sulfide testing circuit adopts conventional testing circuit, and the temperature and humidity sensing circuit adopts conventional circuit.
Portable H among the present invention can send detected concentration of hydrogen sulfide as a blind node in the network, but also can utilize self engine of positioning to judge the positional information of oneself, and oneself positional information is sent.Therefore, in Control Room, the monitoring personnel not only can know clearly the field personnel position, but also can know the concentration of hydrogen sulfide of this position.Host computer monitoring software is provided with hydrogen sulfide overload alarm function, provides the prompting of transfiniting, in case when finding that on-the-spot concentration of hydrogen sulfide transfinites, the monitor staff can order the site operation personnel to withdraw.Even accident happens also can know clearly through system, the Position Approximate that the site operation personnel has an accident is understood on-the-spot environmental information, gets the time for rescue, submits necessary information.
When the staff carries portable H access to plant zone when executing the task, the staff understands the H of present position in real time through portable H
2Situation such as S concentration and humiture for whether the staff gos deep into device are executed the task and foundation are provided, the H when the present position
2Portable node was reported to the police when S concentration reached dangerous critical condition, reminded the staff to withdraw the scene at once.Personnel to access to plant maintenance and maintenance; The WSN node receives the RF signal of moving target; Position and follow the tracks of through receiving the RF signal strength signal intensity, prediction work personnel positions and direct of travel are sent to gateway node through aggregation node; Intranet is connected in gateway node and the factory, realizes upper monitoring center remote monitoring.Use 2.4GHZ frequency range transmitting information wirelessly between the WSN node, gateway node and upper monitoring central host are connected in series through standard RS-422.PC upper monitoring main frame is monitored employee's field operation and safety in production situation in real time through the relevant information of collecting net artis, in time controls and eliminate accident potential, realizes effective control and management to field device.In case security incident takes place to leak; The monitoring management personnel can be immediately from make good one's retreat route and rescue personnel's information such as safe course of personnel positions distribution situation, trapped personnel quantity, the distress personnel of the supervisory control comuter inquiry scene of the accident; Solve the insurmountable problem of staff's experience that much only depends on; Guarantee the effective operation of rescue and relief work and safe rescue, for the petrochemical industry production safety management provides the robust techniques guarantee.
Claims (3)
1. petrochemical industry sulfur-bearing device employee tracing and monitoring system based on WSN; It is characterized in that; Sulfur-bearing assembly monitor zone is divided into a plurality of monitor cell (2); Each monitor cell (2) is disposed a plurality of sensor nodes (1) and is settled the aggregation node (6) of these sensor nodes (1), and aggregation node (6) is connected through computer network (5) in gateway node (4) and the factory; And be provided with and gather and position and transmit the portable H of information through the wireless communication module of sensor node (1) the H2S concentration of present position.
2. the petrochemical industry sulfur-bearing device employee tracing and monitoring system based on WSN according to claim 1 is characterized in that, have in 3～5 adjacent or close sensor nodes (1) of each monitor cell one be used for compiling Monitoring Data leader's node (3).
3. the petrochemical industry sulfur-bearing device employee tracing and monitoring system based on WSN according to claim 1; It is characterized in that portable H is made up of CC2431 chip, power circuit, temperature and humidity sensing circuit, hydrogen sulfide testing circuit, liquid crystal display circuit and warning circuit.
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| CN2011104064545A CN102497412A (en) | 2011-12-08 | 2011-12-08 | Wireless sensor network (WSN)-based staff tracking and monitoring system for petrochemical sulfur-containing device |
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| CN2011104064545A CN102497412A (en) | 2011-12-08 | 2011-12-08 | Wireless sensor network (WSN)-based staff tracking and monitoring system for petrochemical sulfur-containing device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105445340A (en) * | 2014-08-29 | 2016-03-30 | 中国石油化工股份有限公司 | Method and apparatus for measuring content of hydrogen sulfide in crude oil, and crude oil transportation safety monitoring method and apparatus thereof |
| CN115166508A (en) * | 2022-09-08 | 2022-10-11 | 深圳市云天数字能源有限公司 | Failure detection method and relay failure detection device for grid-connected inverter |
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| CN102056192A (en) * | 2010-11-09 | 2011-05-11 | 广东石油化工学院 | WSN (wireless sensor network) intra-network data fusion method based on kernel density estimation and non-parameter belief propagation |
| US20110133927A1 (en) * | 2008-08-14 | 2011-06-09 | Humphrey Christopher A | Environmental risk management system and method |
| CN102235177A (en) * | 2010-04-21 | 2011-11-09 | 常熟市智胜信息技术有限公司 | ZigBee-based wireless sensor network system for mine safety monitoring |
| CN202395818U (en) * | 2011-12-08 | 2012-08-22 | 广东石油化工学院 | Petrochemical sulfur-containing device staff tracking and monitoring system based on WSN |
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| US20110133927A1 (en) * | 2008-08-14 | 2011-06-09 | Humphrey Christopher A | Environmental risk management system and method |
| CN101808353A (en) * | 2010-03-08 | 2010-08-18 | 南昌航空大学 | Method for monitoring and analyzing own health status of wireless sensor network |
| CN102235177A (en) * | 2010-04-21 | 2011-11-09 | 常熟市智胜信息技术有限公司 | ZigBee-based wireless sensor network system for mine safety monitoring |
| CN102056192A (en) * | 2010-11-09 | 2011-05-11 | 广东石油化工学院 | WSN (wireless sensor network) intra-network data fusion method based on kernel density estimation and non-parameter belief propagation |
| CN202395818U (en) * | 2011-12-08 | 2012-08-22 | 广东石油化工学院 | Petrochemical sulfur-containing device staff tracking and monitoring system based on WSN |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105445340A (en) * | 2014-08-29 | 2016-03-30 | 中国石油化工股份有限公司 | Method and apparatus for measuring content of hydrogen sulfide in crude oil, and crude oil transportation safety monitoring method and apparatus thereof |
| CN115166508A (en) * | 2022-09-08 | 2022-10-11 | 深圳市云天数字能源有限公司 | Failure detection method and relay failure detection device for grid-connected inverter |
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Application publication date: 20120613 |