CN102364062A - CDMA 1X (Code Division Multiple Access 1X) network communication-based coal mine monitoring system - Google Patents
CDMA 1X (Code Division Multiple Access 1X) network communication-based coal mine monitoring system Download PDFInfo
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- CN102364062A CN102364062A CN2011102502013A CN201110250201A CN102364062A CN 102364062 A CN102364062 A CN 102364062A CN 2011102502013 A CN2011102502013 A CN 2011102502013A CN 201110250201 A CN201110250201 A CN 201110250201A CN 102364062 A CN102364062 A CN 102364062A
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Abstract
The invention discloses a CDMA 1X (Code Division Multiple Access 1X) network communication-based coal mine monitoring system. The system mainly comprises a responsive monitoring center system, and a wireless network, a CDMA data transmitter and field equipment which are connected to the responsive monitoring center system in sequence. The system has the advantages that: an advanced CDMA 1X network is adopted, so that the conventional wiring mode of an aboveground part can be changed on the premise of not changing an underground part, namely wireless transmission is adopted to substitute wired transmission to be more suitable for remote data transmission. Meanwhile, a new alarm function can also be introduced, and dangerous data can be directly transmitted to a handheld communicator of a related person in charge, so that gas explosion accidents are reduced. Meanwhile, the system has the prominent characteristics of simple structure, low cost, high safety, capability of avoiding disconnection and the like.
Description
Technical field
The present invention relates to the mine monitoring system, specifically, be based on the mine monitoring system of CDMA 1X network service.
Background technology
With in recent years, accident of mine disaster takes place repeatedly, and the reason that causes has a lot, wherein much causes because of gas explosion.Since 15 days February in 2005, domestic five above gas accidents of once dead ten people take place in succession, Shuozhou, the Shanxi coal mine gas accident that wherein takes place recently has 69 people and is murdered.On March 21st, 2005; National safety of coal mines transformation and gas control work teleconference have been held; Require various places further to carry out the 81st standing meeting spirit of State Council; Further carry out national safety of coal mines transformation and gas control work,, reverse the multiple passive situation of the particularly serious gas accident in colliery to improve the Safety of Coal Mine Production supportability.
The main cause of gas explosion is improper ventilation, have various ignition sources, thought paralysis and sloppy management etc.When the improper or booster air feed in booster position being installed when not enough, will strengthen the gas adverse current after coal and gas are given prominence to, it is fresh distinguished and admirable that high concentration gas can get into big lane, reaches explosion limit, in case ignition source occurs, gas explosion will take place.Like this, prevent the generation of gas explosion accident, can pass through to strengthen the management of ventilation equipment, strengthen the monitoring to gas density, the generation of the various ignition sources of strict control and raising miner and administrative staff's measures such as ideology realize.
The tradition coal mine gas monitoring and controlling system is divided into two parts usually: aboveground part and down-hole part.Traditional down-hole part, employing be that monitor respectively each monitoring point, and directly reach the data of each different monitoring point aboveground through connecting up respectively.Aboveground part then is directly delivered to Surveillance center in the data that receive the circuit transmission, needs personnel's monitoring in 24 hours, can not carry out automatic analyzing and processing, even make the measure of reporting to the police timely.As, when the content of carbon monoxide reaches the burning threshold, then need the supervisor to estimate data, through the monitoring personnel, send actuation of an alarm then.Suppose the supervisor because of the interim away from posts of emergency situations, therefore cause easily and miss monitored data, thereby cause serious mine disaster to take place.
Summary of the invention
The object of the present invention is to provide a kind of simple in structure, low-cost, safe, mine monitoring system based on CDMA 1X network service that can not occur going offline.
For achieving the above object; The technical scheme that the present invention adopts is: based on the mine monitoring system of CDMA 1X network service; Mainly by replying the system of monitoring center, and be connected in wireless network, CDMA data link, the site plant of replying the system of monitoring center successively and constitute.
The said system of monitoring center of replying comprises one-level safety management PC, secondary safety management PC and Hand held communication device; Said one-level safety management PC, secondary safety management PC and Hand held communication device all are connected with wireless network simultaneously.
The mining equipment start-stop sensor that said site plant comprises mining equipment and is connected in mining equipment.
Said site plant also comprises carbon monoxide transducer, air flow sensor, pressure sensor.
Said pressure sensor is a B/P EGR Back Pressure Transducer EGR.
Said CDMA data link is connected with site plant through fieldbus.
Said fieldbus is the RS485 bus.
Said CDMA data link is provided with the RS232 interface; Be provided with the RS485/232 converter between said RS232 interface and the RS485 bus.
Said wireless network is a CDMA 1X network.
CDMA 1X network is that a kind of novel mobile data communication is professional.CDMA 1X network be CHINAUNICOM improve optimize release in the cdma network process of construction the 2.75th generation the communication technology; Its wave point of on the basis of present IS-95 cdma network, further having upgraded; Make it support high speed supplementary service channel, thereby can realize high-speed internet access service.CDMA 1X network has outstanding technical advantage in transfer rate, function aspects than GPRS; CDMA 1X network theory speed 153.6Kbps; Present actual test rate is 80kbps; Surpass the 56kbps that present common telephone dials up on the telephone, be average 30-40kbps CDMA 1X network data transmission 2-3 doubly.Be particularly suitable for the communication requirement of industries such as picture financial transaction, remote monitoring, replace fully in the past traditional wired MODEM, X.25, communication modes such as data radio station, note.
CDMA 1X network wireless transmission data have following advantage.
1, the CDMA 1X network user can arbitrarily distribute and move the site of oneself, need not to worry the maintenance of circuit or the communicating interrupt that when wired telephone-moving, causes.Build work such as new site need not to carry out backguy, sunken cord.Less than optical fiber or the investment of special line system, equipment is easy for installation.
2, the terminal price comparison is low.Compare with DDN, a lot of than DTU or its terminal low price of DDN dedicated line modem.
3, CDMA 1X network rate are cheap, charge rationally.The monthly payment of CDMA 1X network rate is also more cheap than wired telephone network rate.The welfare lottery ticket distribution work does not have the information transmission of big data quantity, the special line that unnecessary employing rate are very high (DDN, frame relay).CDMA 1X network also can charge with the service quality that provides according to the data volume of communication.In the CDMA1X network, the user only needs to set up with network and once be connected, just can keep this connection for a long time, and only when the transmission data just busy channel also quilt chargeed, busy channel not during maintenance does not produce charging.Like this, both need not frequently connect the expense in the time of also transmission gap needn't being paid.
4, CDMA 1X network can be supported frequent, low volume bursts type data service best.Communication quality is reliable and stable, never goes offline.
5, CDMA1X network insertion speed is fast, and the seamless link with the available data net is provided.Because CDMA 1X network itself is exactly a multicomponent data net; Support TCP/IP, agreement X.25, therefore need not switching, directly and Packet Data Network's (IP network or X.25 net) intercommunication through networks such as PSTN; Access speed only several seconds are faster than circuit type data service.Adopt ICP/IP protocol, radio data network than before (cluster, two-way call, GSM short message), network insertion is direct convenience more.
6, cover better.(CDPD), its network coverage is extraordinary to more a lot of radio data networks for cluster, two-way call.
The operating principle of native system does.
Native system is divided into the two large divisions: down-hole part and aboveground part.
The down-hole part is mainly come concentration and content, the underground air situation of all gases under the production wells, the data such as service behavior of equipment through various site plants, then through fieldbus with transfer of data to aboveground.Aboveground, the data that the down-hole is caught are connected with secondary safety management PC with one-level safety management PC through special line.
One-level safety management PC and what move above the secondary safety management PC is monitoring software has the label of each sensor of down-hole above, and institute's data presented constantly refreshes through the change of uploading data.Simultaneously, monitoring software can also gather, handle, analyze and file these data, can be used as the important evidence of relevant responsible person's decision-making.And monitoring software has the automatic warning function that exceeds standard, and is used for pointing out the fault or the on-the-spot gas density situation of staff's corresponding device, in time to take measures, avoids the generation of major event.
In native system the inside, be not that each site plant all is furnished with a CDMA data link, because site plant is in the down-hole, the data that they are gathered upload to aboveground through the mode concentrated area of bus.Usually all have serial ports on the site plant, the transmission of image data can be carried out through the RS485 bus in the down-hole like this.When fieldbus uploads to when aboveground, only need just can directly be connected through a RS485/232 converter with the CDMA data link.
The invention has the advantages that.
Adopt advanced CDMA 1X network, can under the prerequisite that does not change the down-hole part, can change the traditional wiring mode of aboveground part, promptly adopt wireless transmission to replace wire transmission, be more suitable for like this in remote transfer of data.Simultaneously, can also introduce a kind of new warning function, can dangerous data directly be sent to responsible person's Hand held communication device, thereby reduce the generation of gas explosion accident.Possess simultaneously simple in structure, low-cost, safe, the high-lighting characteristics such as can not occur going offline.
Description of drawings
Fig. 1 is a system architecture diagram of the present invention.
Fig. 2 is the system architecture diagram of the embodiment of the invention one.
The specific embodiment
Below in conjunction with embodiment the present invention is done to specify further, but embodiment of the present invention is not limited thereto.
Embodiment one
Like Fig. 1,2, shown in.Based on the mine monitoring system of CDMA 1X network service,, and be connected in wireless network, CDMA data link, the site plant of replying the system of monitoring center successively and constitute mainly by replying the system of monitoring center.
Reply the system of monitoring center and comprise one-level safety management PC, secondary safety management PC and Hand held communication device; Said one-level safety management PC, secondary safety management PC and Hand held communication device all are connected with wireless network simultaneously.
The mining equipment start-stop sensor that site plant comprises mining equipment and is connected in mining equipment.
Site plant also comprises carbon monoxide transducer, air flow sensor, pressure sensor.
Pressure sensor is a B/P EGR Back Pressure Transducer EGR.
The CDMA data link is connected with site plant through fieldbus.
Fieldbus is the RS485 bus.
The CDMA data link is provided with the RS232 interface; Be provided with the RS485/232 converter between said RS232 interface and the RS485 bus.
Wireless network is a CDMA 1X network.
As implied abovely just can better realize the present invention.
Claims (9)
1. based on the mine monitoring system of CDMA 1X network service, it is characterized in that:, and be connected in wireless network, CDMA data link, the site plant of replying the system of monitoring center successively and constitute mainly by replying the system of monitoring center.
2. the mine monitoring system based on CDMA 1X network service according to claim 1 is characterized in that: the said system of monitoring center of replying comprises one-level safety management PC, secondary safety management PC and Hand held communication device; Said one-level safety management PC, secondary safety management PC and Hand held communication device all are connected with wireless network simultaneously.
3. the mine monitoring system based on CDMA 1X network service according to claim 1 is characterized in that: the mining equipment start-stop sensor that said site plant comprises mining equipment and is connected in mining equipment.
4. the mine monitoring system based on CDMA 1X network service according to claim 3, it is characterized in that: said site plant also comprises carbon monoxide transducer, air flow sensor, pressure sensor.
5. the mine monitoring system based on CDMA 1X network service according to claim 4 is characterized in that: said pressure sensor is a B/P EGR Back Pressure Transducer EGR.
6. according to any described mine monitoring system based on CDMA 1X network service among the claim 1-5, it is characterized in that: said CDMA data link is connected with site plant through fieldbus.
7. the mine monitoring system based on CDMA 1X network service according to claim 6 is characterized in that: said fieldbus is the RS485 bus.
8. the mine monitoring system based on CDMA 1X network service according to claim 7 is characterized in that: said CDMA data link is provided with the RS232 interface; Be provided with the RS485/232 converter between said RS232 interface and the RS485 bus.
9. according to any described mine monitoring system based on CDMA 1X network service among the claim 1-5, it is characterized in that: said wireless network is a CDMA 1X network.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102502013A CN102364062A (en) | 2011-08-29 | 2011-08-29 | CDMA 1X (Code Division Multiple Access 1X) network communication-based coal mine monitoring system |
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| CN2011102502013A CN102364062A (en) | 2011-08-29 | 2011-08-29 | CDMA 1X (Code Division Multiple Access 1X) network communication-based coal mine monitoring system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102705009A (en) * | 2012-05-22 | 2012-10-03 | 上海乾视通信技术有限公司 | Mine information system |
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| CN101532396A (en) * | 2009-01-20 | 2009-09-16 | 樊铁山 | Coal mine safety monitoring system connected with explosion impact air-pressure explosion-protection sensors |
| CN201902236U (en) * | 2010-09-29 | 2011-07-20 | 付海芹 | Comprehensive life monitoring system |
| CN101975090A (en) * | 2010-10-18 | 2011-02-16 | 中国瑞林工程技术有限公司 | Intelligent stress automatic alarm system for monitoring stability of underground metal mine |
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| CN201908689U (en) * | 2010-10-26 | 2011-07-27 | 北京鑫源九鼎科技有限公司 | Linkage warning system for mine gas accident |
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| CN102705009A (en) * | 2012-05-22 | 2012-10-03 | 上海乾视通信技术有限公司 | Mine information system |
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Application publication date: 20120229 |