CN1053982A - Underpass communication means and equipment - Google Patents
Underpass communication means and equipment Download PDFInfo
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- CN1053982A CN1053982A CN 91100496 CN91100496A CN1053982A CN 1053982 A CN1053982 A CN 1053982A CN 91100496 CN91100496 CN 91100496 CN 91100496 A CN91100496 A CN 91100496A CN 1053982 A CN1053982 A CN 1053982A
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Abstract
The invention discloses a kind of underpass communication means and equipment, two end stations and several relay stations are set in underpass, with the signal of communication of wired serial connection transmission intermediate frequency and control signal unification, hold between station or relay station and the moving-target between end station or the relay station with the wireless mode transmit communications signals.End of the present invention station or relay station partly are made up of transceiver, controller, antenna etc., the end station has the exchange versatility with relaying, manufacture simple, also have with low cost simultaneously, convenient for installation and maintenance, the dependable performance characteristics, easy to utilize, be suitable for occasions work length such as subterranean tunnel, tunnel, subway and transmit apart from underground communication.
Description
The present invention relates to underpass communication means and equipment in a kind of communications field, occasion such as be particularly suitable in railway tunnel, vcehicular tunnel, subterranean railway and the ore deposit in the tunnel and make lower channel method for communicating and equipment at a distance.
Communication in the underpass at present, the means of communication that occasion such as comprises in railway tunnel, vcehicular tunnel, subterranean railway and the ore deposit in the tunnel mainly adopts leakage coaxial communication, its major defect of this communication means and equipment is that investment is big, about 130,000 yuan of every kilometer direct investment, add that to change the investment of communication equipment just bigger in order to adapt to leakage coaxial, the while maintenance difficult, these underground communication occasions are that coal, flue dust are many mostly, the leakage coaxial surface needs often to remove dirty, therefore brings big difficulty and inconvenient to applicating maintenance.
The objective of the invention is to avoid above-mentioned the deficiencies in the prior art part and provide a kind of and manufacture that simple, with low cost, installation and maintenance are convenient, the underpass communication means and the equipment that are suitable for doing in the underpass telecommunication of dependable performance.
The objective of the invention is to finish in the following manner: realize the underpass communication means be two end stations 1 are set in underpass and several relaying 2 methods are carried out and underpass in communications between the transceiver 3 of moving target (or fixed target), this method end station 1 and relay station 2, be connected in series with wire cable between relay station 2 and the relay station 2, wire transmission has the signal of communication of the intermediate-freuqncy signal of speech and the unification of operating state control signal, between the transceiver 3 of end station 1 or relay station 2 and moving target (or fixed target) with wireless mode transmitting transceiver signal of communication.
The equipment of realization underpass communication its each end station 1 or relay station 2 are made up of power divider 4, transmit-receive switch 5, receiver 6, sender 7, monitor 8, controller 9, power supply 10, antenna 11.Controller 9 is made of limiting amplifier 12, isolation attenuator 13, wave detector 14,18,19, electronic switch 15,16,17,20.The voice signal of receiver 6, intermediate-freuqncy signal output 2 is gone into end with the limiting amplifier 12 of controller 9 respectively, electronic switch 15 is gone into end and is connected, limiting amplifier 12 serial connections are isolated attenuator 13, wave detector 14 backs are gone into end in addition with electronic switch 15 and are connected, electronic switch 15 intermediate-freuqncy signal outputs respectively with electronic switch 16, wave detector 18 is gone into end and is connected, wave detector 18 outputs respectively with electronic switch 16,17 go into end connects, electronic switch 16 goes out end, 17 go into end is connected with the intermediate-freuqncy signal input and output A end of controller 9, the A end by cable and subordinate end stand 1 or the intermediate-freuqncy signal input and output A of the corresponding controller 9 of relay station 2 hold connection.Electronic switch 17 outputs are gone into end with wave detector 19 respectively, sender 7 intermediate-freuqncy signals are gone into end 2 and are connected, wave detector 19 outputs and transmit-receive switch 5 gone into end, electronic switch 20 is gone into end and is connected, electronic switch 20 another go into end go out to hold with power supply 10 be connected, it goes out to hold and is connected with receiver 6, sender 7 power supply switching controls ends respectively.And the signal that the signal of receiver 6 is gone into end 1, sender 7 goes out to hold 1 to be connected with output 1, the input 2 of transmit-receive switch 5 respectively, the monitor signal end 3 of receiver 6, sender 7 is gone into end 1,2 with monitor 8 respectively and is connected, and the input 3 of transmit-receive switch 5, output 4 are connected with antenna 11 by power divider 4.
The antenna 11 at end of the present invention station 1 is that the antenna 11 of individual unit antenna, relay station 2 is formed antenna array by several element antennas, and encourages transmission TE at underpass internal antenna 11 in the perpendicular polarization mode
OIWith one group of TM
M, nThe wave method wireless transmission transmitting-receiving signal of communication of the hybrid waveform of mould (and EM ripple), this ripple class is the TEM ripple, but incomplete same.
The present invention has following advantage compared to existing technology:
1, interior every kilometer investment of communication of underpass of implementing with underpass communication means of the present invention and equipment only needs about 60,000 yuan, and letter does not connect investment, so with low cost, is significantly less than existing leakage coaxial communications investment.
2, underpass communication equipment of the present invention is installed simply, and maintenance need not done removing surface work easily, can alleviate maintenance workload greatly.
3, according to the length of lower channel differently several relay stations 2 can be set arbitrarily, realize the telecommunication in the underpass.End station 1 has interchangeability with relay station 2, and therefore versatility is manufactured simple.
4, dependable performance of the present invention, through on probation in the tunnel under 1040 meters, communication efficiency is good, and field strength measurement and train operation communication experiment be lower channel communicating requirement contentedly all, has application value.
Below in conjunction with accompanying drawing the present invention is described in further detail.
Fig. 1 manages Principle of Communication of the present invention and scheme of installation.
Fig. 2 is the functional-block diagram of end of the present invention station 1 or relay station 2.
Fig. 3 is the functional-block diagram of controller 9 of the present invention.
With reference to Fig. 1, Fig. 2, Fig. 3, underpass communication means of the present invention is that the method that two end stations 1 and several relay stations 2 are set in underpass is carried out communications in the underpass, two end stations 1 of embodiment are arranged on the exit of underpass, 2 relay stations 2 are set in 1040 meters long underpass (tunnel), terrestrial repetition station 21 respectively is set, to realize the communications of the transceiver 3 that moves (or fixing) target in terrestrial repetition station 21 and the underpass on the ground outside the underpass mouth.Be connected in series with wire cable between its middle-end station 1 and relay station 2, relay station 2 and the relay station 2, the signal of communication of the intermediate-freuqncy signal that transmission has a speech and the unification of operating state control signal, between the transceiver 3 of end station 1 and relay station 2 and mobile (or fixing) target with wireless mode transmitting transceiver signal of communication.Its operation principle is as follows, if terrestrial repetition station 21 will with transceiver 3 conversations of moving (or fixing) target in tunnel (or tunnel etc.), if there is not relay station 2, signal of communication can only transmission range when operating frequency is for 150MHZ in tunnel (or tunnel etc.) 100 meters so, can only transmission range during 450MHZ 300 meters, after communicating by letter than long just can't the realization, adopt relay station 2 of the present invention in the tunnel, just can realize telecommunication in the tunnel.When ground relay station 21 moves transceiver 3 signallings of (or fixing) target in the tunnel, at first the antenna 11 at end station 1 is received the wireless signal at terrestrial repetition station 21, end station 1 is had the intermediate-freuqncy signal and the operating state control signal of speech immediately through the wire cable transmission by the relay station 2 of wire cable serial connection to several, under the control of this wire signal, each end station 1 and each relay station 2 are in the state of sending out of putting entirely, its wireless signal that sends is moved (or fixing) target transceiver 3 and receives, and finishes the communication of underpass.Embodiment moves or fixed target transceiver 3 as transceiver 3 is installed ON TRAINS.Otherwise, the transceiver 3 of moving target or fixed target will be communicated by letter with terrestrial repetition station 21 in the underpass, its wireless signal that sends is received by its end station 1 or relay station 2 nearby, the intermediate-freuqncy signal and the operating state control signal that have speech then after this station received signal by the wire cable of serial connection to other each end station 1 or relay station 2 transmission, each end station 1 or relay station 2 receive to put immediately behind this signal and send out, the signal of communication of the transceiver 3 of mobile or fixed target is just received at terrestrial repetition station 21, thereby finishes in the underpass and the two-way communication on ground.Be connected in series the signal of communication that intermediate-freuqncy signal that transmission has a speech and operating state control signal are unified with a cable between embodiment of the invention end station 1 and relay station 2, relay station 2 and the relay station 2.
The antenna 11 at end of the present invention station 1 is the individual unit antenna, and the antenna 11 of relay station 2 is formed antenna array by several element antennas, and antenna 11 encourages transmission TE in the perpendicular polarization mode
OIWith one group of TM
M, nThe wave method transmitting transceiver signal of communication of the hybrid waveform of mould (being the EM ripple), the similar TEM ripple of this EM ripple, but incomplete same.As everyone knows, in the underpass during transmission signals, underpass is like a waveguide, intrinsic electromagnetic wave signal loss is very big, as operating frequency 150MHZ signal, about 100 meters of transmission range, therefore can't implement long haul communication in the underpass, communication equipment of the present invention is a physical dimension of considering underpass, rough surface, the gradient of wall, refraction loss, the standing wave safety allowance, factors such as antenna coupling coefficient are provided with the position that is provided with of the quantity of element antenna 11 of antenna array of relay station 2 quantity and relay station 2 and they, be implemented in the long haul communication in the underpass, embodiment individual antenna 11 adopts element antenna.The embodiment of the invention is provided with 2 relay stations 2 in 1040 meters tunnel, the antenna array of each relay station 2 is made up of 4 element antennas, and its antenna array effect is the wireless zone of action that enlarges relay station 2.
Each end station 1 of equipment of the present invention or relay station 2 are made up of power divider 4, transmit-receive switch 5, receiver 6, sender 7, monitor 8, controller 9, power supply 10, antenna 11, each end station 1 or relay station 2 are except that antenna 11 is provided with the quantity difference, all the other building blocks are identical, have interchangeability, versatility, therefore manufacture simply.Its middle controller 9 is made of limiting amplifier 12, isolation attenuator 13, wave detector 14,18,19, electronic switch 15,16,17,20, and controller 9 of the present invention can be realized following automatic control:
1, the reiving/transmitting state conversion and control of antenna 11;
2, the transmitting-receiving switching controls of power supply 10;
3, have the transmitting-receiving input and output control of the intermediate-freuqncy signal of speech;
4, receiver 6 intermediate-freuqncy signals output control.
Limiting amplifier 12 its effects are amplified and amplitude limit the voice signal of receiver 6 inputs, satisfy the signal amplitude requirement, 13 its effects of isolation attenuator prevent that prime from amplifying and back level detection generation interferes with each other, and output regulation detection amplitude, embodiment designs voluntarily with the ordinary electronic line principle.Wave detector 14,18,19 its effects are that speech signal or intermediate-freuqncy signal are become direct current signal, trigger electronic switch 15,16,17,20 conductings or end, and the embodiment wave detector all adopts crystal diode to make wave detector. Electronic switch 15,16,17,20 its act on conducting or by the time, export various operating state control signals, finish the automatic control action of operating state of the present invention.Electronic switch all adopts transistor to do conducting or by finishing on-off action.Controller 9 action principles are as follows: export direct current signal after receiver 6 input voice signals are given wave detector 14 detections, control triggers electronic switch 15, reaches receiver 6 intermediate-freuqncy signals output control.Intermediate-freuqncy signal is exported direct current signal and is controlled triggering electronic switch 16,17 simultaneously after wave detector 18 detections, reach the transmitting-receiving input and output control of the intermediate-freuqncy signal that has speech.The intermediate-freuqncy signal one tunnel that has a speech is exported direct current signal control transmit-receive switch 5 after wave detector 19 detections, transmit-receive switch 5 reaches the reiving/transmitting state conversion and control of antenna 11 by control relay circuit, and another road directly send sender 7 to send.Export direct current signal after wave detector 19 detections, also control electronic switch 20 simultaneously, reach the transmitting-receiving switching controls of power supply 10, make 6 state outages of receiver, the energising of receipts state, then 7 state energisings of sender, the outage of receipts state.The positive 12 volts of voltages of power supply 10 output, the intermediate-freuqncy signal input and output A end embodiment of controller 9 adopts two energising cable sockets, with a cable hold stand 1 with relay station 2, relay station 2 and relay station 2 between wire cable be connected in series transmit communications signals.
Receiver 6 of the present invention is made receiving communication signal, and sender 7 makes to send signal of communication, and embodiment receiver 6, sender 7 all adopt the circuit of the DB-4 type transceiver of Shanghai shipping Electronic Equipment Factory production, and operating frequency is 151MHZ.Monitor 8 its effects monitor that to receiver 6, sender 7 operating states the embodiment of the invention adopts the wave detector that designs voluntarily to reach its operating state is monitored.Transmit-receive switch 5 effects realize end of the present invention station 1 or relay station 2 received signals, send the alternation of signal, and embodiment adopts commercially available JR7-M type relay to do the work of control transmit-receive switch.It acts on power divider 4 and puts when sending out, and sender 7 power outputs are distributed to each antenna 11, when receiving, gives receiver 6 behind the signal plus that antenna 11 is received, and embodiment adopts the power divider of design voluntarily to be made.The transceiver 3 of moving target or fixed target is disposed voluntarily by the user, as long as the identical telecommunication that can carry out in the underpass with the present device operating frequency is transmitted.
The mounting structure of single-end of the present invention station 1 or relay station 2 is as follows: receiver 6, sender 7, power supply 10, and controller 9 and monitor 8, transmit-receive switch 5, power divider 4 is installed in respectively in 4 plug-in units, plug-in unit inside circuit elements device separately assembles with printed panel, be convenient to I﹠ M, the size of plug-in unit is high 500 millimeters, wide 80 millimeters, dark 200 millimeters, 4 plug-in units are installed in high 600 millimeters, wide 500 millimeters, in the dark 210 millimeters cabinet, the antenna socket of the antenna 11 that links to each other with power divider 4 and two energising cable socket A of intermediate-freuqncy signal input and output are installed on the side plate of cabinet, be processed with installing hole on the cabinet back shroud, can be directly installed on present device on the wall of underpass, antenna 11 is directly installed in the underpass, be connected with cable between antenna 11 and the antenna socket, end station 1 and relay station 2, be connected in series with cable between the intermediate-freuqncy signal input and output two energising cable socket A between relay station 2 and the relay station 2, can carry out the interior communications of underpass.
Claims (3)
1, a kind of underpass communication means and equipment, it is characterized in that the underpass communication means is provided with two end stations 1 and several relay stations 2 in underpass method is carried out and underpass in communications between the transceiver 3 of moving target (or fixed target), this method end station 1 and relay station 2, be connected in series with wire cable between relay station 2 and the relay station 2, wire transmission has the signal of communication of the intermediate-freuqncy signal of speech and the unification of operating state control signal, between the transceiver 3 of end station 1 or relay station 2 and moving target (or fixed target) with wireless mode transmitting transceiver signal of communication.
2, underpass communication means according to claim 1 and equipment, each end station 1 or relay station 2 are by power divider 4, transmit-receive switch 5, receiver 6, sender 7, monitor 8, power supply 10, antenna 11 is formed, it is characterized in that controller 9 is formed in addition, its middle controller 9 is by limiting amplifier 12, isolate attenuator 13, wave detector 14,18,19, electronic switch 15,16,17,20 constitute, the voice signal of receiver 6, intermediate-freuqncy signal output 2 is gone into end with the limiting amplifier 12 of controller 9 respectively, electronic switch 15 is gone into end and is connected, limiting amplifier 12 serial connections are isolated attenuator 13, wave detector 14 backs are gone into end in addition with electronic switch 15 and are connected, electronic switch 15 intermediate-freuqncy signal outputs respectively with electronic switch 16, wave detector 18 is gone into end and is connected, wave detector 18 outputs respectively with electronic switch 16,17 go into end connects, electronic switch 16 goes out end, 17 go into end is connected with the intermediate-freuqncy signal input and output A end of controller 9, A end is by the intermediate-freuqncy signal input and output A end connection of the corresponding controller 9 of cable and subordinate end station 1 or relay station 2, electronic switch 17 outputs are gone into end with wave detector 19 respectively, sender 7 intermediate-freuqncy signals are gone into end 2 and are connected, wave detector 19 outputs and transmit-receive switch 5 are gone into end, electronic switch 20 is gone into end and is connected, and another goes into electronic switch 20 end and go out to hold with power supply 10 and be connected, its go out end respectively with receiver 6, sender 7 power supply switching controls ends connect; And the signal that the signal of receiver 6 is gone into end 1, sender 7 goes out to hold 1 to be connected with output 1, the input 2 of transmit-receive switch 5 respectively, the monitor signal end 3 of receiver 6, sender 7 is gone into end 1,2 with monitor 8 respectively and is connected, and the input 3 of transmit-receive switch 5, output 4 are connected with antenna 11 by power divider 4.
3, underpass communication means according to claim 1 and 2 and equipment, it is characterized in that holding the antenna 11 at station 1 to form antenna array by several element antennas, and encourage transmission TE in the perpendicular polarization mode at underpass internal antenna 11 for the antenna 11 of individual unit antenna, relay station 2
OIWith one group of TM
M, nThe wave method wireless transmission transmitting-receiving signal of communication of the hybrid waveform of mould (being the EM ripple).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91100496 CN1017768B (en) | 1991-01-24 | 1991-01-24 | Method and equipment for communication in underground channel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91100496 CN1017768B (en) | 1991-01-24 | 1991-01-24 | Method and equipment for communication in underground channel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1053982A true CN1053982A (en) | 1991-08-21 |
| CN1017768B CN1017768B (en) | 1992-08-05 |
Family
ID=4904661
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 91100496 Expired CN1017768B (en) | 1991-01-24 | 1991-01-24 | Method and equipment for communication in underground channel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1017768B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012075865A1 (en) * | 2010-12-08 | 2012-06-14 | 京信通信系统（中国）有限公司 | Corridor mobile communication coverage distribution system and coupling radiation unit |
-
1991
- 1991-01-24 CN CN 91100496 patent/CN1017768B/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130257673A1 (en) * | 2010-07-27 | 2013-10-03 | Comba Telecom System (China) Ltd | Mobile Communication Coverage Distribution System in Corridor and Coupled Radiation Unit |
| WO2012075865A1 (en) * | 2010-12-08 | 2012-06-14 | 京信通信系统（中国）有限公司 | Corridor mobile communication coverage distribution system and coupling radiation unit |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1017768B (en) | 1992-08-05 |
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| CF01 | Termination of patent right due to non-payment of annual fee |