CN103780981B - Underground wired calling system - Google Patents
Underground wired calling system Download PDFInfo
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- CN103780981B CN103780981B CN201410071697.1A CN201410071697A CN103780981B CN 103780981 B CN103780981 B CN 103780981B CN 201410071697 A CN201410071697 A CN 201410071697A CN 103780981 B CN103780981 B CN 103780981B
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Abstract
The invention belongs to the technical field of underground communication and particularly relates to an underground wired calling system. The underground wired calling system comprises more than two wired calling subsystems, each wired calling subsystem comprises a communication conductor which is connected with the ground surface and underground, one end of each communication conductor is grounded on the ground surface, the other end of each communication conductor is grounded underground, more than two signal transceivers are in a series connection with one another on each communication conductor, one transceiver on each communication conductor is located on the ground surface, other transceivers on each communication conductor are located underground, a conducting loop is formed between each communication conductor and the ground, a single conductor communication system is formed between each communication conductor and the signal transceivers, and the signal transceiver, located on the ground surface, of each wired calling subsystem forms a ground call center through a switching group so that a unified communication system is formed among the wired calling subsystems. The underground wired calling system has the advantages that the communication distance is long, principles are simple, the arrangement is rapid, costs are low, the reliability is high, and large area communication of the ground surface and underground can be rapidly established under emergency conditions.
Description
Technical field
The invention belongs to underground communication technical field is and in particular to a kind of underground wireline call system.
Background technology
At present, underground communication adopts telephone, wireless relay intercommunication, wired broadcasting, radio broadcasting, LAN+wireless
The various ways such as network (wifi) communication.Specifically, these methods are primarily present the deficiency of following several respects:
(1) adopt telephone to need 2 or more wire transmission signals, be generally used for point-to-point communication；
(2) wireless transceiver is needed to relay using wireless relay intercommunication, high cost, reliability is low；
(3) two-wire transmission signal is generally required using wired broadcasting, signal is limited to one-way transmission；
(4) using radio broadcasting mode thoroughly apart from short, generally one-way transmission signal；
(5) function of being communicated using LAN+wireless network (wifi) is more powerful, but system complex, generally trunk
Fiber optic communication+LAN+terminal wireless communication network (wifi) composition, equipment cost is high, needs to set up special communication network
Network, when meeting with larger destruction, system is difficult to quickly repair, be not suitable for some in emergency circumstances (as disaster communication) quickly should
With.
Content of the invention
Present invention aims to drawbacks described above present in prior art, provide a kind of communication distance longer, former
The underground wireline call system that reason is simple, arrangement is quick, with low cost, reliability is higher.
The purpose of the present invention to be realized by the following technical solutions: this underground wireline call system, it includes two
Individual above wireline call subsystem；Described wireline call subsystem includes 1 single communication conductor connecting ground and underground,
Single communication conductor one end is grounded on ground, and one end is grounded in underground, and the signal that single communication conductor concatenates more than 2 is received
Send out device, one of transceiver is placed in ground, and remaining transceiver is placed in underground；Single communication conductor and the earth constitute conductive returning
Road, constitutes solid conductor communication system with signal transceiver；Described each wireline call subsystem is placed in the signal transceiver on ground
Terrestrial call center is constituted by switches set, makes to constitute unified communications between each wireline call subsystem.
Specifically, in described each wireline call subsystem, the final stage outfan of the signal sending circuit of signal transceiver
It is linked on single communication conductor using transformator, primary coil one tandem tap of series connection of transformator, the secondary of transformator
A paralleling switch in parallel between two access points of the coil single communication conductor of access；The signal receiving circuit of signal transceiver
Receiving terminal adopt current transformer access solid conductor communication loop in, secondary transformer coil connect a series connection open
Close.
Specifically, the switches set at described terrestrial call center is by the single communication conductor of one group of each wireline call subsystem
Between between the line that connects two-by-two communication switch constitute.
For increasing motility and the reliability of system, on the ground of the single communication conductor of described each wireline call subsystem
It is respectively provided with an earthed switch between the switches set at earth point and terrestrial call center.
The principle of the present invention and work process are as follows: any one signal transceiver on each wireline call subsystem is at ordinary times
It is in signal reception state, the tandem tap of the primary coil of signal sending circuit final stage outfan transformator in transceiver breaks
Open, the paralleling switch closure on secondary coil, the series connection of the secondary transformer of the signal receiving circuit in signal transceiver
Switch closure, receives the signal in (monitoring) communication conductor；When some signal transceiver needs sending signal, signal sends
The tandem tap closure of the primary coil of circuit final stage outfan transformator, the paralleling switch on secondary coil disconnects, and signal connects
The secondary tandem receiving circuit front-end current transformer switches off, and signal is after signal sending circuit processing and amplifying through transformator coupling
Close output on single communication conductor, realize the calling talkback between each transceiver on calling subsystem；Each calls subsystem
Ground-based transceiver concentrate on terrestrial call center, it is possible to achieve to all-calls subsystem calls it is also possible to individually to one
Subsystem calls intercommunication is conversed, and any two calls subsystem can also be by the switch switching at terrestrial call center, merging group
Become and arbitrarily call subsystem.
In addition, the present invention is when emergent (disaster relief) communicates, the single communication conductor of arbitrary calling subsystem is in ground surface end even
It is grounded nearby after connecing 1 ground-based transceiver, the unwrapping wire while other end can be gone into the well with people with coil holder, when closing on disaster relief scene,
Single communication conductor is grounded after concatenation transceiver nearby, you can realize underground (down-hole) intercommunication and ground-based transceiver between and lead to
Words, can also quickly be concatenated multiple transceivers on single communication conductor and converse for multi-point intercommunication or contacted with ground, can be
In emergency circumstances quickly set up writing to each other of ground and underground (down-hole).And, a plurality of solid conductor calls the cloth of subsystem
If can carry out simultaneously, managed concentratedly by ground-based transceiver, assume unified command of on ground, each solid conductor calls subsystem
Lay and communication can be independent of each other, fast and flexible during emergency communication again, the survival ability is strong of system.
The present invention can adopt the signal code communication of very little, after signal transceiver, wire do Explosion-proof Design, can be in colliery
Use in the explosive gas atmospheres such as down-hole, and can quickly set up ground communicate connection large-area with down-hole under emergency conditions
System.
Beneficial effects of the present invention be embodied in following some:
(1) any one calling subsystem of the present invention is only with 1 wire, and forms closed-loop path using the conduction of the earth
Carry out speech talkback communication.
(2) ground-based transceiver of the present invention multiple calling subsystem concentrates composition terrestrial call center, can be simultaneously to being
On system, remaining all transceiver carries out audio call, and terrestrial call center both can call any one transceiver of underground and realize
Speech talkback call, it is also possible to carry out speech talkback call between any 2 transceivers of each calling subsystem, can also be led to
Cross ground controlling switch switching, realize the speech talkback call between any 2 calling subsystems.
(3) present invention adopts wire communication, and, up to thousands of rice, reliability is higher for communication distance.
(4) any one communication line only needs 1 wire, you can realizes intercommunication between any two transceiver along the line and leads to
Words or broadcast along the line, line cost is low, easy to use.
(5) if signal sends cancels output coupling transformator, directly exported using transistor, transceiver and communication line add
Insulate by force and make Explosion-proof Design, the present invention can be made to reach safety anti-explosive requirement, can be in the inferior explosive gas atmosphere of coal mine
Middle use.
(6) present invention can quickly set up mining area calling commander center, in case of emergency can quickly apply, communication system
Arrangement fast and flexible, system survivability is strong.
Brief description
Fig. 1 is the system principle structural representation of the embodiment of the present invention.
Fig. 2 is the workflow block diagram of the terrestrial call underground transceiver of the present invention.
Fig. 3 be the present invention calling subsystem transceiver between intercommunication FB(flow block).
Fig. 4 is the ground of the present invention to underground broadcasting stream journey block diagram.
Fig. 5 be the present invention each transceiver of any 2 subsystems between intercommunication flow chart
Fig. 6 is that the transceiver of the present invention sends operation principle schematic.
Fig. 7 is the transceiver reception state operation principle schematic diagram of the present invention.
Specific embodiment
The present invention is described in further detail with reference to the accompanying drawings and examples.
Referring to Fig. 1, it is the theory structure schematic diagram that the present invention is applied to mine example, this underground wireline call system includes
Four wireline call subsystems, each wireline call subsystem includes 1 single communication conductor connecting ground and underground, single
Communication conductor one end is grounded on ground, and one end is grounded in underground.It can be seen from figure 1 that four wireline call subsystems is single logical
Letter wire is l1, l2, l3, l4 respectively, and is individually positioned in four underworkings；It is serially connected with 3 on single communication conductor l1
Signal transceiver, transceiver 10 is placed in ground, and transceiver 11 and transceiver 12 are placed in down-hole；Also concatenate on single communication conductor l2
There are 3 signal transceivers, transceiver 20 is placed in ground, transceiver 21 and transceiver 22 are placed in down-hole；On single communication conductor l3
Transceiver 30 be placed in ground, transceiver 31 and transceiver 32 are placed in down-hole；Transceiver 40 on single communication conductor l4 is placed in
Ground, transceiver 41 and transceiver 42 are placed in down-hole.It is also shown from Fig. 1, each wireline call subsystem is placed in the signal on ground
Transceiver 10,20,30,40 by switches set constitute terrestrial call center 50, switches set by connect two-by-two single communication conductor l1,
Between the line of l2, l3, l4, communication switch j12, j13, j14, j23, j24, j34 are constituted；Single logical in each wireline call subsystem
Be respectively equipped between the letter ground earth point of wire l1, l2, l3, l4 and the switches set at terrestrial call center earthed switch j1, j2,
j3、j4.
Referring to Fig. 1, in each wireline call subsystem, the final stage outfan of the signal sending circuit of signal transceiver is using change
Depressor is linked on single communication conductor, and primary coil one tandem tap of series connection of transformator, on single communication conductor l1
Tandem tap on the signal sending circuit of transceiver 10,11,12 is k10, k11, k12 respectively, on single communication conductor l3
Tandem tap on the signal sending circuit of transceiver 30,31,32 is k30, k31, k32 respectively；The secondary coil of transformator connects
Enter between two access points of single communication conductor a paralleling switch in parallel, transceiver on single communication conductor l1 10,11,
Paralleling switch on 12 is s10, s11, s12 respectively, the parallel connection on signal transceiver 30,31,32 on single communication conductor l3
Switch is s30, s31, s32 respectively；In Fig. 1, the transceiver 20,21,22,40,41,42 on single communication conductor l2, l4 does not have
Specifically draw.The receiving terminal of the signal receiving circuit of each transceiver adopts current transformer to access in solid conductor communication loop,
One tandem tap of the secondary tandem of current transformer, the signal of the transceiver 10,11,12 on single communication conductor l1 receives electricity
Tandem tap on road is w10, w11, w12 respectively, and the signal of the transceiver 30,31,32 on single communication conductor l3 receives electricity
Tandem tap on road is w30, w31, w32 respectively.
In Fig. 1, closure when ground earthed switch j1, j2, j3, j4 of each calling subsystem are flat, between single communication conductor line
During communication, corresponding earthed switch disconnects, and between line, communication switch j12, j13, j14, j23, j24, j34 disconnect when flat, single communication
Communication switch closure between corresponding line when communicating between wire, so, 2 or multiple solid conductor audio call subsystem composition system
One underground wireline call system.At ordinary times, any one signal transceiver is in signal reception state, when signal receives, transmitting-receiving
Paralleling switch in tandem tap disconnection on the primary coil of signal sending circuit final stage transformator in device, secondary coil closes
Close, the secondary transformer tandem tap closure in signal receiving circuit, the signal receiving circuit in transceiver passes through electric current
Transformer receives the signal in single communication conductor；When transceiver sending signal, at the beginning of signal sending circuit final stage transformator
Tandem tap closure on level coil, the paralleling switch on secondary coil disconnects, the current transformer in signal receiving circuit
Level tandem tap disconnects, and signal exports on single communication conductor through transformer coupled after signal sending circuit process, can
Receive for the other transceivers on single communication conductor, so same solid conductor calls wherein 2 transmitting-receivings on subsystem
Speech talkback call can be carried out between device.
The ground-based transceiver of two or more single conductor voice communication subsystems concentrates composition terrestrial call center, by ground
Face transceiver can call remaining transceiver simultaneously, carry out speech talkback and lead between ground and any one transceiver of down-hole
Words；Terrestrial call center can also select to carry out between the ground-based transceiver of 1 subsystem and remaining certain transceiver of subsystem
Speech talkback is conversed, or selects to carry out voice pair between the ground-based transceiver of 2 subsystems and the transceiver of corresponding subsystem
Say call, or carry out speech talkback call between the ground-based transceiver of multiple subsystem and the transceiver of corresponding subsystem；Appoint
Can also communicate between closure line between the two and open by disconnecting respective ground earthed switch between two communication subsystems of meaning
Close, realize the speech talkback call between two communication subsystems.
Referring to Fig. 2, each earthed switch in terrestrial call center closure ground connection, between line, communication switch disconnects, each ground-based transceiver
It is placed in signal and send state (i.e. the primary coil tandem tap closure of the signal sending circuit final stage transformator of transceiver, secondary
Coils from parallel connection of coils switches off, and the secondary tandem of signal receiving circuit front end current transformer switches off), remaining transceiver is placed in
(i.e. the primary coil tandem tap of the transtation mission circuit final stage transformator of transceiver disconnects signal reception state, parallel connection of secondary windings
Switch closure, the secondary tandem switch closure of signal receiving circuit front end current transformer), terrestrial call center can be to underground
Signal is switched to receive state, after all transceivers in underground receive signal, certain transceiver called after all transceiver callings
C switches to signal to send state signal back, carries out intercommunication call with terrestrial call center, after talk-through, intercommunication transceiver is equal
It is placed in the wait of signal reception state to call next time.
Referring to Fig. 3, the ground earthed switch closure of certain solid conductor communication call subsystem, between line, communication switch disconnects,
Each transceiver is in signal reception state, when one of transceiver a is intended to carry out intercommunication call with another transceiver b, transmitting-receiving
Device a is first placed in signal and sends state sending signal, and after sending signal, a switches to signal reception state, solid conductor communication loop
After other each transceivers upper receive the call signal of a transmission, called transceiver b subsequently switches to signal to send shape
State sending signal, carries out intercommunication call, is placed in signal and connects after intercommunication talk-through between transceiver a, b between transceiver a, b
Receipts state, waits the calling of certain transceiver next time.
Referring to Fig. 4, the ground earthed switch closure of each calling subsystem, between line, communication switch disconnects, and ground-based transceiver is put
Send state in signal, subsurface transceiver is placed in signal reception state, and ground-based transceiver continuously transmits signal simultaneously, and underground is each
Transceiver can continuously receive signal, realizes the function to each transceiver broadcasts in underground for the ground, and after off-the-air, ground is received and dispatched
Device returns to signal reception state.
Referring to Fig. 5, when needing communication between any two solid conductor calling subsystem (such as l1, l2), l1, l2 ground
Earthed switch disconnects, Control on Communication switch j12 closure between line, and l1, l2 connect and utilize underground two earth terminal ground connection, with the earth
Form new solid conductor communication loop, each transceiver first is in signal reception state, and one of transceiver a is intended to and another
When one transceiver b carries out intercommunication call, transceiver a is first placed in signal and sends state sending signal, and after sending signal, a switches to
Signal reception state, after on solid conductor communication loop, other each transceivers receive the call signal of a transmission, called
Transceiver b subsequently switch to signal send state sending signal, carry out intercommunication call between transceiver a, b, transceiver a, b it
Between be placed in signal reception state after intercommunication talk-through, wait the calling of certain transceiver next time, after end of conversation between line, phase
Answer l1, l2 ground earthed switch closure, between line, Control on Communication switch j12 disconnects, and waits new calling.
With reference to Fig. 6, transceiver includes signal sending circuit and two parts of signal receiving circuit, and transceiver is placed in signal and sends out
When sending state, the primary coil concatenation switch closure of signal sending circuit final stage transformator, parallel connection of secondary windings switches off, letter
The secondary transformer tandem tap of number receiving circuit disconnects, signal receiving circuit not receipt signal, signal warp to be sent
Signal is loaded on single conductor communication loop by transformer coupled after amplifying again, forms the signal electricity in solid conductor communication loop
Stream, can be received by each transceiver on single wire communication loop.In Fig. 6, sp represents loudspeaker, and mic represents mike.
With reference to Fig. 7, when transceiver is placed in signal reception state, the primary coil concatenation of signal sending circuit final stage transformator
Switch off, parallel connection of secondary windings switch closure, the secondary transformer tandem tap closure of signal receiving circuit, signal connects
Receive the current signal that circuit receives transmission in solid conductor communication loop.In Fig. 7, sp represents loudspeaker, and mic represents mike.
Claims (3)
1. a kind of underground wireline call system it is characterised in that: it includes plural wireline call subsystem；Described wired
Calling subsystem includes 1 single communication conductor connecting ground and underground, and single communication conductor one end is grounded on ground, one end
In underground ground connection, single communication conductor concatenates the signal transceiver of more than 2, one of transceiver is placed in ground, remaining
Transceiver be placed in underground；Single communication conductor constitutes galvanic circle with the earth, constitutes solid conductor with signal transceiver and communicates
System；The signal transceiver that described each wireline call subsystem is placed in ground constitutes terrestrial call center by switches set, makes each
Unified communications is constituted between wireline call subsystem；The switches set at described terrestrial call center is by one group of each wireline call
Between the line connecting two-by-two between the single communication conductor of system, communication switch is constituted.
2. underground according to claim 1 wireline call system it is characterised in that: in described each wireline call subsystem,
The final stage outfan of the signal sending circuit of signal transceiver is linked on single communication conductor using transformator, at the beginning of transformator
Level coil one tandem tap of series connection, in parallel one between two access points of the secondary coil single communication conductor of access of transformator
Individual paralleling switch；The receiving terminal of the signal receiving circuit of signal transceiver adopts current transformer to access solid conductor communication loop
In, secondary transformer coil one tandem tap of series connection.
3. underground according to claim 1 wireline call system it is characterised in that: in described each wireline call subsystem
It is respectively provided with an earthed switch between the ground earth point of single communication conductor and the switches set at terrestrial call center.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410071697.1A CN103780981B (en) | 2014-02-28 | 2014-02-28 | Underground wired calling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410071697.1A CN103780981B (en) | 2014-02-28 | 2014-02-28 | Underground wired calling system |
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| Publication Number | Publication Date |
|---|---|
| CN103780981A CN103780981A (en) | 2014-05-07 |
| CN103780981B true CN103780981B (en) | 2017-01-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410071697.1A Active CN103780981B (en) | 2014-02-28 | 2014-02-28 | Underground wired calling system |
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| Country | Link |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001119481A (en) * | 1999-10-19 | 2001-04-27 | Hitachi Ltd | Off-talk communication service system |
| CN103152431A (en) * | 2013-03-22 | 2013-06-12 | 天地（常州）自动化股份有限公司 | Mine emergency rescue communication system |
| CN203734791U (en) * | 2014-02-28 | 2014-07-23 | 湖南科技大学 | Underground wired calling system |
-
2014
- 2014-02-28 CN CN201410071697.1A patent/CN103780981B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001119481A (en) * | 1999-10-19 | 2001-04-27 | Hitachi Ltd | Off-talk communication service system |
| CN103152431A (en) * | 2013-03-22 | 2013-06-12 | 天地（常州）自动化股份有限公司 | Mine emergency rescue communication system |
| CN203734791U (en) * | 2014-02-28 | 2014-07-23 | 湖南科技大学 | Underground wired calling system |
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| Publication number | Publication date |
|---|---|
| CN103780981A (en) | 2014-05-07 |
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