CN102410045A - Gas monitoring system for distributed coalmines - Google Patents
Gas monitoring system for distributed coalmines Download PDFInfo
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- CN102410045A CN102410045A CN2011104500489A CN201110450048A CN102410045A CN 102410045 A CN102410045 A CN 102410045A CN 2011104500489 A CN2011104500489 A CN 2011104500489A CN 201110450048 A CN201110450048 A CN 201110450048A CN 102410045 A CN102410045 A CN 102410045A
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Abstract
The invention discloses a gas monitoring system for distributed coalmines. The gas monitoring system comprises a field apparatus module, a ground monitoring terminal and a system network module, wherein underground monitoring data is sampled by the field apparatus module and then is transmitted to a ground monitoring module through the system network module, and the ground monitoring module is used for summarizing, storing and uploading sampled data. The technical scheme of the gas monitoring system can be applied to environments of the coalmines with different scales and is convenient for the system to expand; and the gas monitoring system has the advantages of rich monitoring variety and wide monitoring range and can be used for monitoring underground environments in a multiple variety and high accuracy manner.
Description
Technical field
The invention belongs to mine gas monitoring field, particularly a kind of towards the distributed coal mine gas monitoring system.
Background technology
In economic development and continuous riseing to resources requirement; All kinds of accidents that cause are of common occurrence because mine gas exceeds standard; Caused great economic loss and casualties, therefore fire damp is carried out effective monitoring becomes a problem that must effectively be solved.Relevant unit has also dropped into lot of manpower and material resources; Be intended to set up complete; The coal mine gas monitoring and controlling system of safety; In the present system most taked based on the single microcomputer monitoring monitoring in the ground of vibrating sensor with elementary, monitor based on the ground network of multisensor, but the work after coming into operation from the system that these have been accomplished has been found following several technical issues.
(1) current coal mine gas monitoring and controlling system information transmission does not have the uniform communication agreement, and normally a cover system is formulated a cover agreement, greatly reduces the wide usage and the expansion of system.(2) current coal mine gas monitoring and controlling system information transmission error rates is high; The supervisor can not be had the situation of down-hole accurately to be understood; After potential safety hazard appears in the down-hole; Can not make reaction fast; Incured loss through delay in the rescue valuable time (3) since under the mine environment abominable, the non-maintaining property of legacy equipment is not high again, many in R&D process, check and accept equipment up to standard after underground work a period of time owing to producing fault and deformation inevitably under the effect of high humility, high-temperature and pernicious gas.(4) current coal mine gas monitoring and controlling system is not made differentiation targetedly for the mine of different scales; And because the complicated underground environment of mine; Adopt the mine of cover standard monitoring different scales blindly; Light then cause the waste of resource manpower, heavy then produce the safety detection leak, underground labour's life security is threatened.(5) current coal mine gas monitoring and controlling system real-time is poor, and the down-hole is surveyed asynchronous with aboveground monitoring.Above unfavorable factor causes system can not carry out real-time safety detection and feedback information effectively, thereby has strengthened monitor staff's judgement difficulty, and has wasted in the very first time and scent a hidden danger, and handles the important opportunity of hidden danger.
Summary of the invention
The purpose of this invention is to provide a kind of towards the distributed coal mine gas monitoring system.
The technical solution that realizes the object of the invention is: a kind of towards the distributed coal mine gas monitoring system, comprising:
The site plant module connects to form with explosion-proof network controller by some sensors and after being unified into the sensor crowd, and wherein each sensor is connected with an alarm buzzer respectively, has the buzzing warning function; The down-hole is provided with a plurality of monitoring points, and a cover site plant module is all disposed in each monitoring point, in order to gather down-hole information and through the grid module earthward detection module transmit;
The grid module is transferred to the ground monitoring module in order to the information with the collection of site plant module, and to big-and-middle-sized mine, the grid module comprises optical fiber backbone ethernet ring network, LonWorks subnet and network adapter; With twisted-pair feeder or power line the sensor crowd in the site plant module is connected to a LonWorks subnet; Through network adapter the LonWorks subnet is articulated to the optical fiber backbone ethernet ring network then, down-hole information upwards transfers to the ground monitoring module from each LonWorks subnet after the optical fiber backbone ethernet ring network compiles; To small mine, the grid module directly adopts the LongWorks subnet, with twisted-pair feeder or power line the sensor crowd in the site plant module is articulated on the LonWorks subnet, and down-hole information directly transfers to the ground monitoring module by the LonWorks subnet;
The ground monitoring module; The data by the EM equipment module collection in order to will pass through grid transmission that module is compiled show in real time, handle and upload; The ground monitoring module comprises supervisory control comuter, database server and printer; Supervisory control comuter is connected with database server, and supervisory control comuter backs up the storage of receiving in database server, and database server is used to store the historical data and the alarm logging of each monitoring point; Supervisory control comuter is connected with printer, and printer is used to print required various forms.
The present invention compared with prior art, its remarkable advantage: the system equipment of (1) coal-face, driving face can move easily, and the system of being convenient to expands.(2) the monitoring kind is abundant, and monitoring range is extensive, can multiple type, monitor subsurface environment accurately.(3) with multiple sensors as the information gathering source, improved the degree of accuracy that down-hole hidden danger is differentiated.(4) have the operation style of patterned complete Chinese man-machine interface and Windows, the friendly type of system is strong.(5), be applicable to the Minepit environment of different scales to the different system schema of system structure design of different scales.
Description of drawings
Fig. 1 is the general structure design figure towards the distributed coal mine gas monitoring system.
Fig. 2 be big-and-middle-sized mine towards distributed coal mine gas monitoring system structural design drawing.
Fig. 3 be small mine towards distributed coal mine gas monitoring system structural design drawing.
Fig. 4 is level Surveillance center of an office structure chart.
Fig. 5 is an ore deposit level Surveillance center structure chart.
Fig. 6 is the module map towards the distributed coal mine gas monitoring system.
The specific embodiment
The present invention is towards the distributed coal mine gas monitoring system; According to two big major function demands: monitoring and reporting to the police; Design three big functional modules pointedly: site plant module 1, ground monitoring terminal 2 and grid module 3; The monitored data of down-hole passes monitoring module 2 earthward through grid module 3 afterwards by 1 sampling of site plant module, and is gathered, stores and uploaded by 2 pairs of sampled datas of ground monitoring module.
The present invention is a kind of towards the distributed coal mine gas monitoring system, comprising:
Site plant module 1; Connect to form with explosion-proof network controller by some sensors and after being unified into the sensor crowd; Wherein each sensor is connected with an alarm buzzer respectively; Have the buzzing warning function, sensor comprises gas concentration sensor, carbonomonoxide concentration sensor, temperature pick up, air velocity transducer, flow transmitter, pressure sensor, electric fixtures start-stop sensor, feed condition sensor and Air door sensor; Warning function comprises gas density exceed standard sound and light alarm, carbonomonoxide concentration exceed standard sound and light alarm, the below standard sound and light alarm of oxygen concentration, other harmful gas concentration exceed standard sound and light alarm, temperature over-range sound and light alarm, wind speed transfinite sound and light alarm, smog exceed standard sound and light alarm, pressure reduction transfinite sound and light alarm, equipment fault sound and light alarm, communication failure sound and light alarm, power failure sound and light alarm; The down-hole is provided with a plurality of monitoring points, and a cover site plant module 1 is all disposed in each monitoring point, in order to gather down-hole information and through grid module 2 earthward detection module 3 transmit;
Grid module 2 is transferred to ground monitoring module 3 in order to the information that site plant module 1 is gathered, and to big-and-middle-sized mine, grid module 2 comprises optical fiber backbone ethernet ring network, LonWorks subnet and network adapter; With twisted-pair feeder or power line the sensor crowd in the site plant module 1 is connected to a LonWorks subnet; Through network adapter the LonWorks subnet is articulated to the optical fiber backbone ethernet ring network then, down-hole information upwards transfers to ground monitoring module 3 from each LonWorks subnet after the optical fiber backbone ethernet ring network compiles; To small mine, grid module 2 directly adopts the LongWorks subnet, with twisted-pair feeder or power line the sensor crowd in the site plant module 1 is articulated on the LonWorks subnet, and down-hole information directly transfers to ground monitoring module 3 by the LonWorks subnet;
Ground monitoring module 3; Compile the data of gathering of transmission and show in real time, handle and upload in order to will pass through 2 of grid modules by EM equipment module 1; Ground monitoring module 3 comprises supervisory control comuter, database server and printer; Supervisory control comuter is connected with database server, and supervisory control comuter backs up the storage of receiving in database server, and database server is used to store the historical data and the alarm logging of each monitoring point; Supervisory control comuter is connected with printer, and printer is used to print required various forms.Supervisory control comuter is used to move distributed methane monitoring system software; Database server is used to store historical data, the alarm logging of each monitoring point; Printer is used for printing reports; Interactive portion have patterned complete Chinese man-machine interface, Windows operation style, modular construction, be easy to use, flexible configuration and be convenient to characteristics such as expansion.On the control interface, can reflect the general picture of whole monitoring system and the geographical distribution at control point intuitively.The user directly clicks the screen graph object, i.e. the detailed data of addressable corresponding control point.The monitor staff can implement remote signalling, remote measurement, remote control to monitored object through clicking corresponding icon, and can view detailed monitor message.Optical fiber backbone ethernet ring network communication protocol is TCP/IP in the grid module 3, bandwidth 100Mbps; LonWorks subnetwork communicating agreement is LonTalk, and bandwidth 78Kbps or 5Kbps, the transmission medium of LonWorks subnet are Shielded Twisted Pair, and whole LonWorks subnet can articulate 127 equipment; The transfer rate of LonWorks subnet is 5Kbps, and transmission range is 20km.
Grid module 3 is a nucleus module of the present invention, it by down-hole Control Network, ground monitoring central site network, Intranet and and safety of coal mines supervision department between network four parts form.The down-hole Control Network can exceed standard according to environmental aspect, safety means operation conditions, the hazardous substances under the ground Surveillance center needs real time monitoring coal mine and report to the police and the powering-off state that transfinites, and also need satisfy the user's request of long-range deciliter underground power supply used switch.The ground monitoring central site network need realize in the ground monitoring between intracardiac and the monitor workstation, being connected between work station and the server, and provide and Intranet and safety of coal mines supervision department between interface.Intranet is mainly used in coal production and management; Level Surveillance center connects with Intranet with level Surveillance center of office distributed coal mine gas monitor monitoring system in the ore deposit, thereby makes Safety of Coal Mine Production functional department and person in charge on the enterprise network can understand the relevant information of each mine safety production at any time.Network between the safety of coal mines supervision department can realization office level ground monitoring center and safety of coal mines supervision department between networking; Safety of coal mines supervision department can directly obtain information from the ground monitoring center through network, conveniently understands and grasp the Safety of Coal Mine Production situation.
Below in conjunction with accompanying drawing the present invention is described in further detail.
The general structure of distributed coal mine methane monitoring system is as shown in Figure 1.Whole system is made up of ore deposit level methane monitoring system, mineral bureau or colliery group safety production monitoring center (level Surveillance center of office), higher level's security production supervision and management department's monitoring terminal and enterprise network and internet.According to the mine scale, ore deposit level methane monitoring system has following two kinds of system architectures.
As shown in Figure 2 is the distributed ore deposit level methane monitoring system structure that is applicable to small mine, and system adopts LonWorks Control Network technology.Lay a LonWorks control net at ground monitoring center and down-hole, it is online that all-network type equipment all is articulated in LonWorks control, and the transmission medium of subnet is that Shielded Twisted Pair The whole control network can articulate 127 network-type equipment.The transfer rate of network is 5Kbps, and transmission range can reach 20 kilometers, and communication protocol is LonTalk.
As shown in Figure 3 is the distributed ore deposit level methane monitoring system structure that is applicable to big-and-middle-sized mine, and system adopts optical fiber backbone ethernet ring network and LonWorks Control Network seamless link technology.Lay an optical fiber ring network at ground monitoring center and down-hole; In the zone that network-type equipment such as explosion-proof network-type universal monitor terminal are concentrated relatively; With twisted-pair feeder or power line network-type equipment is constituted a LonWorks control subnet; Articulate to the optical fiber backbone ethernet ring network through explosion-proof network controller then, each explosion-proof network controller can articulate 63 network-type terminal devices.
The optical fiber backbone looped network adopts 100Mbps EPA technology, and communication protocol is TCP/IP, and each the fiber segment transmission range in the optical fiber ring network is 40 kilometers; Wherein the bus topology transmission range of LonWorks control subnet when transfer rate is 78Kbps can reach 2700 meters, and free topological transmission range can reach 500 meters, and the transmission range when transfer rate is 5Kbps can reach 20 kilometers, and communication protocol is LonTalk.In order to ensure the real-time and the reliability of system, the practical efficiency of the bandwidth of optical fiber backbone looped network is controlled in 25%, i.e. 25Mbps, and then the LonWorks Control Network subnet that articulates of optical fiber backbone looped network is:
25Mbps * 78Kbps (supposing that the subnet bandwidth is with foot) ≈ 320 sub-net
The number of terminals that can articulate is: 320 * 63=20160
Also be controlled in the 25%C like the subnet bandwidth availability ratio, then total system can articulate LonWorks Control Network subnet just reach 1280 surplus, the number of terminals that total system can articulate just reaches:
1280 * 63=80640
Visible from aforementioned calculation, can satisfy the needs that any extensive mine gas is monitored in real time based on the distributed ore deposit level methane monitoring system structure of optical fiber ring network and the seamless link of LonWorks Control Network.
The distributed coal mine methane monitoring system is made up of level Surveillance center of office, ore deposit level Surveillance center, communication network, fire damp monitoring system and system monitoring software.
As shown in Figure 4 is level Surveillance center of office structure chart, and level Surveillance center of office is mainly by being made up of work station, database server, printer, large screen projector, router and Ethernet switch.Work station is used for operation office level gas-monitoring software; Database server is used to store and manage the data that each ore deposit level methane monitoring system is uploaded; Printer is used to print required various forms; Large screen projector is used for using when many people check the safety in production of each ore deposit simultaneously, like enterprises thorough examination, the higher level supervisory department's inspection etc. of keeping the safety in production; Router is used for being connected with the safety of enterprise network; Ethernet switch is used for level Surveillance center of structure office LAN.
As shown in Figure 5 is ore deposit level Surveillance center structure chart, and level Surveillance center in ore deposit mainly is made up of work station, database server, fiber optic Ethernet switch or network adapter, printer and router.Work station is used to move ore deposit level gas-monitoring software; Database server be used to store and pit for managing under the data uploaded of gas-monitoring subsystem; Printer is used to print required various forms; Router is used for being connected with the safety of enterprise network; The fiber optic Ethernet switch is used for being connected with big-and-middle-sized fire damp monitoring system network; Network adapter be used for small-sized well under the methane monitoring system network be connected.
The communication network of distributed coal mine methane monitoring system comprise down-hole Control Network, ground monitoring central site network, Intranet and and higher level's safety of coal mines supervision and management department between communication network.
The communication network that big-and-middle-sized mine adopts is formed (small mine is the LonWorks field control network of dedicated bandwidth 5Kbps only) by an optical fiber backbone ethernet ring network and a plurality of LonWorks subnet.Optical fiber backbone ethernet ring network communication protocol is TCP/IP, bandwidth 100Mbps, and LonWorks subnetwork communicating agreement is LonTalk bandwidth 78Kbps or 5Kbps.The zone of concentrating relatively at each explosion-proof network-type universal monitor terminal is provided with a LonWorks subnet, and the LonWorks subnet is through the seamless link of explosion-proof network controller realization with the optical fiber backbone net.The equipment on the network of being articulated in can also and be articulated between all devices on the network and communicates except that can communicating with ore deposit level Surveillance center.In addition, because communication network has adopted the carrier sense technology, so each online equipment can be uploaded to the ground monitoring center immediately with important information (like warning message).The ground monitoring center adopts Ethernet to realize the interconnection of the network equipment in the Surveillance center.Ground monitoring Center-to-Field network connects through the Ethernet optical fiber switch; Level Surveillance center of office provides the interface with enterprise network; Be connected through internet between higher level's safety of coal mines supervision and management department.
The hardware environment of system monitoring software adopts based on 100/1000Mbps Ethernet, monitor workstation and server.The Ethernet host-host protocol is TCP/IP, presses colliery scale configure database server and monitor workstation as required, and system supports B/S and C/S structure.Application software has ore deposit level version drawn game level version, and ore deposit level version is only monitored local mine; Office's level version can be kept watch on all and innings ore deposit level methane monitoring system of level Surveillance center networking, but open remote control function.In addition, office's safety, production management department can use situation such as each mine gas variation of browser monitors and blower fan start-stop through enterprise network.Safety of coal mines at different levels supervisory department uses each mine gas of browser monitors to change through internet and situation such as blower fan start-stop.Systems soft ware all adopts modular arrangements, and each functions of modules is independent, interface is clear, can be distributed in any computer as required, and through the network mutual access.
Claims (3)
1. one kind towards the distributed coal mine gas monitoring system, it is characterized in that: comprise
Site plant module (1) connects to form with explosion-proof network controller by some sensors and after being unified into the sensor crowd, and wherein each sensor is connected with an alarm buzzer respectively, has the buzzing warning function; The down-hole is provided with a plurality of monitoring points, and a cover site plant module (1) is all disposed in each monitoring point, in order to gather down-hole information and through grid module (2) earthward detection module (3) transmit;
Grid module (2) is transferred to ground monitoring module (3) in order to the information that site plant module (1) is gathered, and to big-and-middle-sized mine, grid module (2) comprises optical fiber backbone ethernet ring network, LonWorks subnet and network adapter; With twisted-pair feeder or power line the sensor crowd in the site plant module (1) is connected to a LonWorks subnet; Through network adapter the LonWorks subnet is articulated to the optical fiber backbone ethernet ring network then, down-hole information upwards transfers to ground monitoring module (3) from each LonWorks subnet after the optical fiber backbone ethernet ring network compiles; To small mine; Grid module (2) directly adopts the LongWorks subnet; With twisted-pair feeder or power line the sensor crowd in the site plant module (1) is articulated on the LonWorks subnet, down-hole information directly transfers to ground monitoring module (3) by the LonWorks subnet;
Ground monitoring module (3); Compile the data of gathering of transmission and show in real time, handle and upload in order to will pass through grid module (2) by EM equipment module (1); Ground monitoring module (3) comprises supervisory control comuter, database server and printer; Supervisory control comuter is connected with database server, and supervisory control comuter backs up the storage of receiving in database server, and database server is used to store the historical data and the alarm logging of each monitoring point; Supervisory control comuter is connected with printer, and printer is used to print required various forms.
2. according to claim 1 towards the distributed coal mine gas monitoring system, it is characterized in that: said sensor comprises gas concentration sensor, carbonomonoxide concentration sensor, temperature pick up, air velocity transducer, flow transmitter, pressure sensor, electric fixtures start-stop sensor, feed condition sensor and Air door sensor.
3. according to claim 1 towards the distributed coal mine gas monitoring system, it is characterized in that: optical fiber backbone ethernet ring network communication protocol is TCP/IP in the grid module (3), bandwidth 100Mbps; LonWorks subnetwork communicating agreement is LonTalk, and bandwidth 78Kbps or 5Kbps, the transmission medium of LonWorks subnet are Shielded Twisted Pair, and whole LonWorks subnet can articulate 127 equipment; The transfer rate of LonWorks subnet is 5Kbps, and transmission range is 20km.
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| CN2011104500489A CN102410045A (en) | 2011-12-29 | 2011-12-29 | Gas monitoring system for distributed coalmines |
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