CN1946200A - Radio communication system for mine personal handphone system - Google Patents
Radio communication system for mine personal handphone system Download PDFInfo
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- CN1946200A CN1946200A CNA2006100499246A CN200610049924A CN1946200A CN 1946200 A CN1946200 A CN 1946200A CN A2006100499246 A CNA2006100499246 A CN A2006100499246A CN 200610049924 A CN200610049924 A CN 200610049924A CN 1946200 A CN1946200 A CN 1946200A
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- 238000004088 simulation Methods 0.000 description 1
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Abstract
This invention discloses a Xiaolingtong radio communication system used in mines including an underground communication sub-system including two parts of underground equipments and ground equipments, in which, the underground equipments include a base station controller, a base station, a supply, an optical end machine and cell phones, the ground equipments include an optical end machine, a supply and local devices, the base station controller is connected with each base station via its interface plates and supplies to them, the controller is connected with the local devices via the optical end machine and the ground optical end machine, which can not only finish free talk among cell phones in the system independently to realize the free talk among cell phones in the whole mine region but also realizes the free talk of commercial and long distance talk so as to realize mobile communications between that of mines and the social public networks.
Description
Affiliated technical field
The present invention relates to a kind of mining communication system, specifically radio communication system for mine personal handphone system.
Background technology
Along with the progress of mine modernization production technique and the needs of production development, increasing move or half move and produce equipment and mobile operational process post, and all press for commander and the decision-making of including the mine production scheduling at any time at the randomness information flow of a large amount of reflection forefronts of the production that taking place.From safety and this angle of production, improve mine communication and make it adapting with current mine production development, safety requirements, be that mine production presses for one of problem of solution all the time.Because radio wave can not be propagated well at mine, a pair of can the communication equipment of proper communication more than 10 kilometers on ground, in but 200 meters of less thaies of the communication distance of down-hole, and, because the electromagnetic wave propagation problem too complex that underground wireless communication relates to, thereby the mine wireless communication field is as a special dimension of mobile communication, and almost nobody goes to explore electromagnetic wave this problem of propagation at mine before sixties end in last century.
At present, in mining field of wireless communication, especially under the coal mine, several communication modes such as carrier communication, induction communication and leakage communication are arranged roughly.Wherein carrier communication and induction communication are early stage a kind of mining communication modes, and this mode all needs to utilize effective long conductor as the electric signal carrier usually in the tunnel in, for example aerial cable and other cable etc., and its system generally is made up of base station, mobile phone, power supply etc.Because of its operating frequency low (0.1～2 megahertz), be subject to electric equipment electromagnetic interference in the environment, communication quality is poor.Leaking communication is a kind of mine wireless communication mode that last century, late nineteen eighties occurred at home first.This mode is " leaky cable " to be used as the vast of heaven line of base station, utilizes " leaky cable " that electric signal is had vertical transmission, the horizontal width of cloth characteristic of penetrating, realize and terminal equipment (mobile phone) between wireless telecommunications under coal mine.Leak communication system and generally be made up of base station, mobile phone, tandem device, repeater, terminate load, power supply, leaky cable etc., its operating frequency higher (being generally tens of to hundreds of megahertzes) has better anti-disturbance performance.Since mid-term in last century, " leakage wireless telecommunications " mode is the most effective communication modes both at home and abroad under the coal mine always.But existing well leaks communication system down still exists following some shortcomings: the one, and environment electromagnetics disturbs big (even operating frequency is higher, also keep away the influences that strong electromagnetic caused that power consumption equipment produced such as unavoidable Underground Locomotive Carrier), influence the continuation of speech quality or conversation when serious; The 2nd, the communication coverage is little.Here the coverage of indication is mainly determined by the total length of leaky cable, one section leaky cable of every prolongation (length is relevant by factors such as operating frequency, use leaky cable characteristic and repeater performances) needs to add vertical loss that a repeater compensates the signal of telecommunication.Cable is longer, and required repeater is many more, and is mainly also just serious by the signal noise accumulation that repeater produced so, causes communication quality poor, so its limited coverage area; The 3rd, weight of equipment is heavy, volume is big, function is few; The 4th, that after-sale service ensures is poor (because its system equipment all is a special equipment, its after-sales service system obviously can not resemble and accomplish to keep in repair the social public network equipment, socialized service).
Summary of the invention
Technical problem to be solved by this invention is that a kind of anti-electromagnetic interference capability of proposition is strong, communication quality good, the radio communication system for mine personal handphone system of wide coverage, to satisfy current mine production development and the required communicating requirement of safety.
Radio communication system for mine personal handphone system of the present invention comprises the downhole communication subsystem, and this subsystem comprises underground equipment and ground installation two parts, and described underground equipment comprises base station controller, base station, power supply, optical transceiver and mobile phone; Described ground installation comprises ground light terminal, power supply and local side apparatus.Described base station controller links to each other with each described base station respectively through the base-station interface plate, and simultaneously to each described base station power supply; Described base station controller links to each other with described local side apparatus through described ground light terminal by described optical transceiver.
Above-mentioned radio communication system for mine personal handphone system, it also comprises the ground communications subsystem, described ground communications subsystem comprises local side apparatus (EPRT), base station controller, base station, mobile phone and power supply, described base station controller links to each other with each described base station respectively through the base-station interface plate, and simultaneously to each described base station power supply; Described base station controller is connected with described local side apparatus by the EI line.
Above-mentioned radio communication system for mine personal handphone system, it also comprises repeater, described repeater is connected between the described base station controller and described base station of described downhole communication subsystem or ground communications subsystem.
The present invention introduces the mine field of wireless communication with ground " Personal Handyphone System " wireless telecommunications system, and makes corresponding improvement, meets and satisfies specific environment for use in down-hole and safety requirements.It can independently finish freely conversing between the mobile phone in the system by local side apparatus.By linking to each other with user's public network switch (PBX), freely conversing between not only can round Realization mining area mobile phone, also can realize the free local telephone network or the long-distance call conversation of mobile phone in the system, thereby really realize comprehensively integrating with of mining mobile communication and social mobile communication public network.System configuration of the present invention is simple, and dilatation is convenient.By increasing equipment such as base station controller and corresponding base station, just can conveniently enlarge system ovelay range, speech quality is at all unaffected.Because system equipment operating frequency height of the present invention (about 2 gigahertzs), therefore, the antijamming capability of equipment is strong, and communication quality is good.Communication system easy construction of the present invention, debugging is quick, and is powerful, easy to maintenance, uses flexibly.When distance surpasses 5000m between base station controller and base station, can insert repeater by between, to satisfy the communication needs.
Description of drawings is described in further detail the present invention below in conjunction with drawings and embodiments.
Fig. 1 is the block diagram of system of the present invention;
Fig. 2 is the theory diagram of base station controller with RPC;
Fig. 3 is the theory diagram of base station controller with CSC;
Fig. 4 is a 10mW base station basic functional principle block diagram;
Fig. 5 is a 40mW base station basic functional principle block diagram.
Embodiment
As shown in Figure 1, PSTN represents local telephone system, and PBX represents switch.Except that these two equipment, all the other are constitution equipments of system of the present invention.Radio communication system for mine personal handphone system of the present invention comprises downhole communication subsystem and ground communications subsystem.The downhole communication subsystem is made up of underground equipment and ground installation, and underground equipment comprises base station controller 1, base station 2, power supply, optical transceiver 3, repeater 4 and mobile phone 5, and ground installation comprises optical transceiver 6, local side apparatus 7 and power supply.Base station controller 1 links to each other with each base station 2 respectively through the base-station interface plate, and simultaneously to each base station 2 power supply.Base station controller 1 links to each other with system local side apparatus 7 through ground light terminal 6 by down-hole optical transceiver 3.When base station controller 1 and 2 distances of required mounted base station surpass 5000m, 2 needs access repeaters 4 then in base station controller 1 and base station.Ground communications subsystem equipment comprises local side apparatus 7, base station controller 8, base station 9, mobile phone 5, repeater 11 and power supply.Base station controller 8 links to each other with each base station 9 respectively through the base-station interface plate, and simultaneously to each base station 9 power supply; Base station controller 8 is connected with local side apparatus 7 by the EI line.When base station controller 8 and 9 distances of required mounted base station surpass 5000m, then at base station controller 8 and base station 9 indirect incoming trunks 11.System's local side apparatus 7 is connected by cable with PBX (switch).The function of each capital equipment is as follows in the system:
1, local side apparatus 7 (EPRT).Local side apparatus 7 (EPRT) provides the interface of native system to switch, thereby makes the terminal (mobile phone) of native system can obtain all functions that exchanger user has.By it, can the logical number of wireless terminal and exchanger user is corresponding one by one.A plurality of EPRT machine frames can superpose, and except that a main frame frame, other machine frames can be configured to expand machine frame, thereby have increased the number of users that single EPRT can insert.The interface of EPRT and switch is the simulation 2 lines (digital signals that it is converted into 64K PCM with the analog signal that receives and signaling, set up digital communi-cations link by EI and base station controller) or EI PRI interface is (in this case, EPRT is exactly an independently switch, inner exchanging is adopted in communication in the system between the mobile phone, no longer needs the intervention of switch).
2, base station controller 1 (8).Base station controller 1 (8) can be made up of two kinds of different interior nuclear equipments: RPC or CSC.
2.1, the base station controller formed of RPC.This base station controller is the core control equipment of system, and equipment is accepted to transmit maximum 4 E1 basic group signals from RT, meets G.703 in the physical layer of procotol, standard G.704, and network layer is observed Q.931 protocols.Equipment is finished protocol conversion (PHS agreement/Nationall agreement), and sends dtmf signal by RT (local side apparatus 7) to Local Exchange's dialing.This base station controller from E1 line that RT (local side apparatus) is connected extract clock, then clock is sent to all base stations 2 (9) (RP), thereby makes (RP) synchronous working of all base stations 2 (9).But equipment is in start or when restarting, the trigger pulse triggers of start-phase synchronous port, if there is not this triggering signal, equipment is then own to define a start-phase.Therefore, belong to the frame signal of RP of different base station controller and asynchronous.This base station controller can use the E1 transmission line to extend and be installed in far-end.The mode that the transmission of E1 signal can be adopted has: high rate user loop (HDSL) transmission, Optical Fiber Transmission and digital microwave transmission.
The RPC theory diagram as shown in Figure 2, it mainly is made up of control module (ECNT), E1 TIM trunk interface module (E1-IF), RP line interface template (RP-IF) etc.Wherein: control module provides the Operations, Administration and Maintenance (OA﹠amp to equipment; M) function.The E1 TIM trunk interface module is connected with RT (local side) through optical transceiver by E1 (speed is 2.048Mbit/s) trunk interface, and this E1 interface transmits all control and voice channel (voice or the interior data of voice frequency band that comprise pcm encoder).RPC can adorn 8 RP line interface templates, maximum may command and support 32 base stations (RP), and equipment links to each other with each base station (RP) by one two line special purpose interface, and provides 116V DC power supply to each RP; Down-hole base station controller 1 uses the EI line to be connected with 3 of down-hole optical transceivers; Down-hole base station controller 1 uses mining communication cable (two core twisted-pair feeders) to link to each other with 2 of base stations, down-hole, and provides 116V DC power supply to each base station.
Base station (RP) type: 10mW and 200mW base station that this base station controller is supported.
2.2, the base station controller formed of CSC.CSC (CS controller, base station controller) is the core control equipment of RF subsystem in the PAS/iPAS/mSwitch wireless local telephone system, G.703 physical layer in procotol meet, standard G.704, network layer is observed Q.931 protocols, be connected with RT (local side apparatus in the PAS system) or iPAS GW by the PRI interface, receive 8 (the most nearly 16) E1 basic group signals that transmit from RT or iPAS GW.CSC realizes the control of speech channel line concentration and sends dtmf signal by RT or iPAS GW to Local Exchange's dialing.It links to each other with CS by ISDN 2BIQ BRI (basic rate interface) interface.CSC can be installed in same place with the switch (LE) of local central office, system equipment etc., also can use the E1 transmission line to extend and be installed in far-end.The mode that the transmission of E1 signal can be adopted has: high rate user loop (HDSL) transmission, Optical Fiber Transmission and digital microwave transmission.Each CSC can handle 480 callings simultaneously, has 8 E1 lines (the most nearly 16) to be connected with RT (or iPAS GW), can support 30 subscriber channels for every.CSC can safeguard by the PC Application of Microcomputer NETMAN that is attached thereto and monitor.System parameter setting is flexible, and warning information and transmission data collection are convenient, and software release upgrade can be written into to CSC is long-range by PC.
CSC theory diagram such as Fig. 3.CSC mainly is made up of system's control plate-CCM3/CCM3R plate, E1MW plate/ETMW plate, CSIF plate/CSIF-16 plate etc.System's control plate (CCM3/CCM3R): the functions such as Operations, Administration and Maintenance to CSC are provided.E1MW plate: CSC is connected with RT (local side) by E1 (speed is 2.048Mbit/s) trunk interface, and this E1 interface transmits all control and voice channel (voice or the interior data of voice frequency band that comprise pcm encoder).CSIF/CSIF-16 plate: CSC is connected with base station (CS) by " U " interface (bri interface) on the CSIF plate, and each " U " interface is made up of 2 B passages and a D passage.A CSC can support 14 blocks of CSIF plates at most.The base station, links to each other with CSC by standard " U " interface at network side as the end-equipment of radio local telephone network; In wireless side, carry out communication by RCR STD-28 air interface and PS.The base station type that this base station device is supported: CS-ACS40mW and CS500mW base station.
Down-hole base station controller 1 uses the EI line to be connected with 3 of down-hole optical transceivers; Down-hole base station controller 1 uses mining communication cable (two core twisted-pair feeders) to link to each other with 2 of base stations, down-hole, and provides 116V DC power supply to each base station.
3, optical transceiver.Machine adopts single plate structure, divide by function and can be divided into substantially: five parts such as recombiner unit, B. codec unit, C. orderwire unit, D. supervisory control system, E. secondary power supply A.2/8, wherein A, B, E Unit three are element, but finish the inverse conversion from the signal of maximum 4 2048kbit/s to laser signal.Optical transceiver can lead to G.703 signal (2048kbit/s) of 4 standards at most, and IN1, IN2, IN3, IN4 connect four input signals respectively, and OUT1, OUT2, OUT3, OUT4 are four corresponding output signals.
4, base station.There are two types the base station: the one, and the matched base station (RP) of base station controller with RPC forms has two kinds of 10mW and 200mW usually.Wherein use usually on ground the 200mW base station.The 2nd, the matched base station (ACS) of base station controller with CSC forms has two kinds of 40mW and 500mW usually.Wherein use usually on ground the 500mW base station.
(RP) is wireless device in the base station, by RPC next ADPCM signal and power feed, import the interface (4B+D+K) of base station RP into by a pair of twisted-pair feeder, signal is by the rf modulations ripple emission of base station, and constitute Radio Link between PS, provide the terminal use voice by RPC, local side apparatus, central exchange office, the base station provides RCR STD-28 air interface (A interface) aspect wireless.
Wave point has four channel time-division access functions, and it has TDMA/TDD (4 channel TDMA-TDD), and a control channel and three transmission channels can be provided.RCR STD-8 is special requirement control channel time slot location not, and therefore, this system allows in four time slots any is defined as the control time slot.Wherein 10mW base station basic functional principle block diagram as shown in Figure 4.
Base station (ACS) is the RF equipment in the wireless local telephone system equally, by CSC (CS Controller, base station controller) the ADPCM signal and the power feed that transmit, import the interface of base station (ACS) into by a pair of twisted-pair feeder, signal is by the rf modulations ripple emission of base station, and constitute Radio Link between PS (mobile phone), provide the terminal use voice by CSC, RT (local side apparatus in the PAS system) or GW (gateway device in the iPAS/mSwitch system), central exchange office.Provide RCR STD-28 air interface at the wireless parties plane system.
Introduce the ACS base station in system after, the base station can be configured to 1C3T (1 control channel, 3 traffic channels).The downhole communication subsystem is generally pressed base station of 300m～1000m and is considered (corner, tunnel is necessary) by actual tunnel, down-hole specific design.
Wherein make theory diagram as shown in Figure 5 on the 40mW base station.
5, repeater.Base station line extender (CS-R) has the regeneration function of 4 road ISDN.It directly utilizes twisted-pair feeder that the U mouth is extended to far-end with transparent mode, and the clock of regeneration side and access side two ends U mouth keeps synchronously, thereby has overcome the restriction that ISDN BRI adjusts the distance on inserting.Every pair of U mouth is independent separately on physical structure, is independent of each other.The working power of equipment can be used the local 127V of interchange power supply.This equipment simple installation, non-maintaining, can a plurality of cascades.
Repeater can have two kinds of feeding classifications: the one, extract power supply from the U mouth circuit of being with DC feedback; The 2nd, extract power supply from two pairs of special-purpose feeder lines.
6, mobile phone.Mobile phone is a system terminal equipment, mainly finish in system freely converse, function serving information such as note.
Claims (3)
1, radio communication system for mine personal handphone system comprises the downhole communication subsystem, it is characterized in that, this subsystem comprises underground equipment and ground installation two parts, and described underground equipment comprises base station controller, base station, power supply, optical transceiver and mobile phone; Described ground installation comprises ground light terminal, power supply and local side apparatus, and described base station controller links to each other with each described base station respectively through the base-station interface plate, and simultaneously to each described base station power supply; Described base station controller links to each other with described local side apparatus through described ground light terminal by described optical transceiver.
2, radio communication system for mine personal handphone system as claimed in claim 1, it is characterized in that, it also comprises the ground communications subsystem, described ground communications subsystem comprises local side apparatus, base station controller, base station, mobile phone and power supply, described base station controller links to each other with each described base station respectively through the base-station interface plate, and simultaneously to each described base station power supply; Described base station controller is connected with described local side apparatus by the EI line.
3, radio communication system for mine personal handphone system as claimed in claim 1 or 2 is characterized in that, it also comprises repeater, and described repeater is connected between the described base station controller and described base station of described downhole communication subsystem or ground communications subsystem.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2006100499246A CN1946200B (en) | 2006-03-21 | 2006-03-21 | Radio communication system for mine personal handphone system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2006100499246A CN1946200B (en) | 2006-03-21 | 2006-03-21 | Radio communication system for mine personal handphone system |
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| CN1946200A true CN1946200A (en) | 2007-04-11 |
| CN1946200B CN1946200B (en) | 2012-02-29 |
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| CN2006100499246A Expired - Fee Related CN1946200B (en) | 2006-03-21 | 2006-03-21 | Radio communication system for mine personal handphone system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101977397A (en) * | 2010-11-22 | 2011-02-16 | 丹东东方测控技术有限公司 | Multi-base station system device in radio station wireless communication networking and working method |
| CN101404695B (en) * | 2008-10-06 | 2011-07-13 | 四川天壹科技发展有限公司 | Mining PHS wireless communication integrated management system |
| CN101790179B (en) * | 2010-02-12 | 2012-07-11 | 中国矿业大学(北京) | Mine mobile communication system |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4879755A (en) * | 1987-05-29 | 1989-11-07 | Stolar, Inc. | Medium frequency mine communication system |
| AUPM593694A0 (en) * | 1994-05-27 | 1994-06-23 | Curtin University Of Technology | Underground microcellular communications network |
| CN1492698A (en) * | 2003-09-29 | 2004-04-28 | 北京交通大学 | Method and networking and calling capable of effectively increasing mine lane radio communication distance |
| CN100501133C (en) * | 2005-05-20 | 2009-06-17 | 中国科学院计算技术研究所 | Sensor network based underground safety monitoring system and method |
| CN2888778Y (en) * | 2006-03-21 | 2007-04-11 | 浙江嘉科电子有限公司 | Little smart wireless communication system for mine application |
-
2006
- 2006-03-21 CN CN2006100499246A patent/CN1946200B/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101404695B (en) * | 2008-10-06 | 2011-07-13 | 四川天壹科技发展有限公司 | Mining PHS wireless communication integrated management system |
| CN101790179B (en) * | 2010-02-12 | 2012-07-11 | 中国矿业大学(北京) | Mine mobile communication system |
| CN101977397A (en) * | 2010-11-22 | 2011-02-16 | 丹东东方测控技术有限公司 | Multi-base station system device in radio station wireless communication networking and working method |
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Address after: 314000 Factory 1, Taoyuan Road, Gao Zhao street, Xiuzhou District, Jiaxing, Zhejiang, 1 Patentee after: ZHEJIANG JEC ELECTRONICS Co.,Ltd. Address before: 314000 Jiaxing city science and technology center, four Chengnan Road, Jiaxing, Zhejiang Patentee before: ZHEJIANG JEC ELECTRONICS Co.,Ltd. |
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Granted publication date: 20120229 |