CN203734791U - Underground wired calling system - Google Patents
Underground wired calling system Download PDFInfo
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- CN203734791U CN203734791U CN201420090294.7U CN201420090294U CN203734791U CN 203734791 U CN203734791 U CN 203734791U CN 201420090294 U CN201420090294 U CN 201420090294U CN 203734791 U CN203734791 U CN 203734791U
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Abstract
The utility model, which belongs to the technical field of underground communication, particularly relates to an underground wired calling system comprising more than two wired calling sub systems. Each wired calling sub system includes one single communication lead connecting the ground and the underground; one terminal of the single communication lead is grounded on the ground; and the other terminal is grounded at the underground. Each single communication lead is connected in series with more than two signal transceivers; and one transceiver is placed on the ground; and the rest of transceivers are placed underground. The single communication leads and the earth form a conductive loop; and the single communication leads and the signal transceivers form a single lead communication system. All wired calling sub systems are installed at the signal transceivers on the ground and a ground calling center is formed by a switch group, so that all wired calling sub systems form a unified communication system. According to the scheme, the underground wired calling system has advantages of long communication distance, simple principle, fast arrangement, low cost, and high reliability; and large-area communication connection between the earth and the underground can be established rapidly in the emergency situation.
Description
Technical field
The utility model belongs to underground communication technical field, is specifically related to a kind of underground wireline call system.
Background technology
At present, underground communication adopts the various ways such as telephone, wireless relay intercommunication, wired broadcasting, radio broadcasting, local area network (LAN)+wireless network (WiFi) communication.Specifically, mainly there is the deficiency of following several respects in these methods:
(1) adopt 2 of telephone needs or transmit signal with upper conductor, being generally used for point-to-point communication;
(2) adopt wireless relay intercommunication to need wireless transceiver relaying, cost is high, and reliability is low;
(3) adopt wired broadcasting generally to need two-wire to transmit signal, signal is limited to one-way transmission;
(4) adopt radio broadcasting mode saturatingly apart from short, be generally one-way transmission signal;
(5) adopt the function ratio of local area network (LAN)+wireless network (WiFi) communication more powerful, but system complex, be generally trunk optical fiber communication+local area network (LAN)+terminal wireless communication network (WiFi) composition, equipment cost is high, need to set up special communication network, while meeting with larger destruction, system is difficult to quick reparation, be not suitable for some in emergency circumstances (as disaster communication) apply fast.
Summary of the invention
The purpose of this utility model is for the above-mentioned defect existing in prior art, provides that a kind of communication distance is long, principle is simple, arrange the underground wireline call system quick, with low cost, reliability is higher.
The purpose of this utility model realizes by the following technical solutions: this underground wireline call system, and it comprises plural wireline call subsystem; Described wireline call subsystem comprises that 1 connects ground and underground single communication conductor, single communication conductor one end is ground ground connection, and one end, underground ground connection, is connected in series 2 above signal transceivers on single communication conductor, one of them transceiver is placed in ground, and remaining transceiver is placed in underground; Single communication conductor and the earth form galvanic circle, form solid conductor communication system with signal transceiver; The signal transceiver that described each wireline call subsystem is placed in ground forms ground call center by switches set, makes to form unified communications between each wireline call subsystem.
Specifically, in described each wireline call subsystem, the final stage output of the signal sending circuit of signal transceiver adopts transformer to be linked on single communication conductor, a tandem tap of primary coil series connection of transformer, the secondary coil of transformer accesses a paralleling switch in parallel between two access points of single communication conductor; The receiving terminal of the signal receiving circuit of signal transceiver adopts in current transformer access solid conductor communication loop, a tandem tap of current transformer secondary coil series connection.
Specifically, the switches set of described ground call center is made up of communication switch between the line connecting between two between the single communication conductor of one group of each wireline call subsystem.
For increasing flexibility and the reliability of system, between the ground earth point of single communication conductor of described each wireline call subsystem and the switches set of ground call center, be respectively provided with an earthed switch.
Principle of the present utility model and the course of work are as follows: any one signal transceiver on each wireline call subsystem is at ordinary times in signal accepting state, the tandem tap of the primary coil of the signal sending circuit final stage output transformer in transceiver disconnects, paralleling switch closure on secondary coil, the secondary tandem tap closure of current transformer of the signal receiving circuit in signal transceiver, receives the signal in (monitoring) communication conductor; In the time that some signal transceivers need transmitted signal, the tandem tap closure of the primary coil of signal sending circuit final stage output transformer, paralleling switch on secondary coil disconnects, the secondary tandem tap of signal receiving circuit front end current transformer disconnects, signal outputs on single communication conductor through transformer coupled after signal sending circuit amplifies processing, realizes and calls out the calling talkback between each transceiver on subsystem; Each ground-based transceiver of calling out subsystem concentrates on ground call center, can realize all-calls subsystem calls, also can be separately to a subsystem calls intercommunication call, any two calling subsystems can also pass through the switching over of ground call center, merge composition and call out arbitrarily subsystem.
In addition, when the utility model is communicated by letter in emergent (disaster relief), the single communication conductor of arbitrary calling subsystem connects after 1 ground-based transceiver ground connection nearby in ground surface end, the unwrapping wire when other end can be gone into the well with people with coil holder, while closing on disaster relief scene, ground connection be nearby connected in series transceiver on single communication conductor after, can realize intercommunication call between underground (down-hole) and ground-based transceiver, can also on single communication conductor, be connected in series fast multiple transceivers for multi-point intercommunication call or contact with ground, in case of emergency writing to each other of Rapid Establishment ground and underground (down-hole).And, many solid conductors are called out the laying of subsystems and can be carried out simultaneously, manage, assume unified command of by ground-based transceiver on ground, the laying of each solid conductor calling subsystem with communicate by letter and can be independent of each other, fast and flexible when emergency communication, the survival ability of system is strong.
The utility model can adopt very little signal code communication, and signal transceiver, wire do after Explosion-proof Design, can in the inferior explosive gas atmosphere of coal mine, use, and can write to each other Rapid Establishment ground and down-hole are large-area under case of emergency.
The beneficial effects of the utility model be embodied in following some:
(1) any one calling subsystem of the utility model only adopts 1 wire, and utilizes the conduction formation closed-loop path of the earth to carry out speech talkback communication.
(2) ground-based transceiver of the multiple calling subsystems of the utility model is concentrated composition ground call center, can carry out audio call to all the other all transceivers in system simultaneously, ground call center both can call out underground any one transceiver and realize speech talkback call, also can between any 2 transceivers of each calling subsystem, carry out speech talkback call, can also switch by ground control switch, realize any 2 speech talkback calls of calling out between subsystem.
(3) the utility model adopts wire communication, and communication distance can reach thousands of rice, and reliability is higher.
(4) any communication line only needs 1 wire, can realize intercommunication call or broadcast along the line between any two transceivers along the line, and line cost is low, easy to use.
(5) cancel output coupling transformer if signal sends, adopt transistor directly to export, transceiver and communication line reinforced insulation are also made Explosion-proof Design, can make the utility model reach safety anti-explosive requirement, can in the inferior explosive gas atmosphere of coal mine, use.
(6) the utility model can be called out command centre in Rapid Establishment mining area, in case of emergency can apply fast, and the layout fast and flexible of communication system, system survivability is strong.
Brief description of the drawings
Fig. 1 is the system principle structural representation of the utility model embodiment.
Fig. 2 is the workflow block diagram that underground certain transceiver is called out on ground of the present utility model.
Fig. 3 is intercommunication FB(flow block) between calling subsystem transceiver of the present utility model.
Fig. 4 is that ground of the present utility model is to underground broadcasting stream journey block diagram.
Fig. 5 is intercommunication flow chart between the each transceiver of any 2 subsystem of the present utility model
Fig. 6 is that transceiver of the present utility model sends state operation principle schematic diagram.
Fig. 7 is transceiver accepting state operation principle schematic diagram of the present utility model.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in further detail.
Referring to Fig. 1, it is the theory structure schematic diagram that the utility model is applied to mine example, this underground wireline call system comprises four wireline call subsystems, each wireline call subsystem comprises that 1 connects ground and underground single communication conductor, single communication conductor one end is ground ground connection, and one end is underground ground connection.As can be seen from Fig. 1, the single communication conductor of four wireline call subsystems is respectively L1, L2, L3, L4, and is placed on respectively in four underworkings; On single communication conductor L1, be serially connected with 3 signal transceivers, transceiver 10 is placed in ground, and transceiver 11 and transceiver 12 are placed in down-hole; On single communication conductor L2, be also serially connected with 3 signal transceivers, transceiver 20 is placed in ground, and transceiver 21 and transceiver 22 are placed in down-hole; Transceiver 30 on single communication conductor L3 is placed in ground, and transceiver 31 and transceiver 32 are placed in down-hole; Transceiver 40 on single communication conductor L4 is placed in ground, and transceiver 41 and transceiver 42 are placed in down-hole.From Fig. 1, be also shown in, the signal transceiver 10,20,30,40 that each wireline call subsystem is placed in ground forms ground call center 50 by switches set, and switches set forms by connecting between two communication switch J12, J13, J14, J23, J24, J34 between the line of single communication conductor L1, L2, L3, L4; Between single communication conductor L1, L2, L3, the ground earth point of L4 and the switches set of ground call center of each wireline call subsystem, be respectively equipped with earthed switch J1, J2, J3, J4.
Referring to Fig. 1, in each wireline call subsystem, the final stage output of the signal sending circuit of signal transceiver adopts transformer to be linked on single communication conductor, a tandem tap of primary coil series connection of transformer, tandem tap on the signal sending circuit of the transceiver 10,11,12 on single communication conductor L1 is respectively K10, K11, K12, and the tandem tap on the signal sending circuit of the transceiver 30,31,32 on single communication conductor L3 is respectively K30, K31, K32; The secondary coil of transformer accesses a paralleling switch in parallel between two access points of single communication conductor, paralleling switch on transceiver 10,11,12 on single communication conductor L1 is respectively S10, S11, S12, and the paralleling switch on the signal transceiver 30,31,32 on single communication conductor L3 is respectively S30, S31, S32; In Fig. 1, the transceiver 20,21,22,40,41,42 on single communication conductor L2, L4 does not specifically draw.The receiving terminal of the signal receiving circuit of each transceiver adopts in current transformer access solid conductor communication loop, tandem tap of secondary series connection of current transformer, tandem tap in the signal receiving circuit of the transceiver 10,11,12 on single communication conductor L1 is respectively W10, W11, W12, and the tandem tap in the signal receiving circuit of the transceiver 30,31,32 on single communication conductor L3 is respectively W30, W31, W32.
In Fig. 1, closure when respectively ground earthed switch J1, J2, J3, the J4 of calling subsystem are flat, while communication between single communication conductor line, corresponding earthed switch disconnects, between line, communication switch J12, J13, J14, J23, J24, J34 disconnect when flat, communication switch closure between corresponding line while communication between single communication conductor line, like this, 2 or the unified underground wireline call system of multiple solid conductor audio call subsystem composition.At ordinary times, any one signal transceiver is in signal accepting state, when signal receives, paralleling switch closure on tandem tap disconnection, secondary coil on the primary coil of the signal sending circuit final stage transformer in transceiver, the secondary tandem tap closure of current transformer in signal receiving circuit, the signal receiving circuit in transceiver receives the signal in single communication conductor by current transformer; In the time of transceiver transmitted signal, tandem tap closure on the primary coil of signal sending circuit final stage transformer, paralleling switch on secondary coil disconnects, the secondary tandem tap of current transformer in signal receiving circuit disconnects, signal outputs on single communication conductor through transformer coupled after signal sending circuit is processed, can receive for other transceiver on single communication conductor, same like this solid conductor is called out and wherein between 2 transceivers, can be carried out speech talkback call on subsystem.
The ground-based transceiver of two or more single conductor voice communication subsystems is concentrated composition ground call center, can call out all the other transceivers by ground-based transceiver simultaneously, between ground and any one transceiver of down-hole, carries out speech talkback call; Ground call center also can select to carry out speech talkback call between the ground-based transceiver of 1 subsystem and all the other certain transceivers of subsystem, or select to carry out speech talkback call between the ground-based transceiver of 2 subsystems and the transceiver of corresponding subsystem, or carry out speech talkback call between the ground-based transceiver of multiple subsystems and the transceiver of corresponding subsystem; Can also be by disconnecting ground earthed switch separately between any two communication subsystems, communication switch between closed line between the two, realizes two speech talkback calls between communication subsystem.
Referring to Fig. 2, the closed ground connection of the each earthed switch in ground call center, between line, communication switch disconnects, it (is the primary coil tandem tap closure of the signal sending circuit final stage transformer of transceiver that each ground-based transceiver is placed in signal transmission state, parallel connection of secondary windings switch disconnects, the secondary tandem tap of signal receiving circuit front end current transformer disconnects), all the other transceivers are placed in signal accepting state, and (the primary coil tandem tap that is the transtation mission circuit final stage transformer of transceiver disconnects, parallel connection of secondary windings switch closure, the secondary tandem tap closure of signal receiving circuit front end current transformer), ground call center switches to signal after can calling out underground all transceivers and receives state, underground all transceivers receive after signal, called certain transceiver C switches to signal transmission state and postbacks signal, carry out intercommunication call with ground call center, after talk-through, intercommunication transceiver is all placed in signal accepting state and waits for calling 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 accepting state, when one of them transceiver A wants to carry out intercommunication call with another transceiver B, transceiver A is first placed in signal and sends state transmitted signal, after transmitted signal, A switches to signal accepting state, on solid conductor communication loop, other each transceivers receive after the call signal of A transmission, called transceiver B switches to subsequently signal and sends state transmitted signal, transceiver A, between B, carry out intercommunication call, transceiver A, between B, after intercommunication talk-through, be all placed in signal accepting state, wait for the calling of certain transceiver next time.
Referring to Fig. 4, each ground earthed switch closure of calling out subsystem, between line, communication switch disconnects, ground-based transceiver is placed in signal and sends state, and underground transceiver is all placed in signal accepting state, the simultaneously continuous transmitted signal of ground-based transceiver, underground each transceiver can receive signal continuously, realize the function of ground to underground each transceiver broadcast, after off-the-air, ground-based transceiver returns to signal accepting state.
Referring to Fig. 5, any two solid conductors are called out subsystem (for example L1, L2) while needing to communicate by letter between, L1, L2 ground earthed switch disconnects, Control on Communication switch J12 closure between line, L1, L2 connects and utilizes underground two earth terminal ground connection, form new solid conductor communication loop with the earth, first each transceiver is in signal accepting state, when one of them transceiver A wants to carry out intercommunication call with another transceiver B, transceiver A is first placed in signal and sends state transmitted signal, after transmitted signal, A switches to signal accepting state, on solid conductor communication loop, other each transceivers receive after the call signal of A transmission, called transceiver B switches to subsequently signal and sends state transmitted signal, transceiver A, between B, carry out intercommunication call, transceiver A, between B, after intercommunication talk-through, be all placed in signal accepting state, wait for the calling of certain transceiver next time, between line after end of conversation, corresponding L1, L2 ground earthed switch closure, between line, Control on Communication switch J12 disconnects, wait for new calling.
With reference to Fig. 6, transceiver comprises signal sending circuit and two parts of signal receiving circuit, when transceiver is placed in signal transmission state, the primary coil serial connection switch closure of signal sending circuit final stage transformer, parallel connection of secondary windings switch disconnects, the secondary tandem tap of current transformer of signal receiving circuit disconnects, signal receiving circuit does not receive signal, signal to be sent is loaded on single conductor communication loop by transformer coupled after signal amplifies again, form the signal code in solid conductor communication loop, can be received by the each transceiver on solid conductor communication loop.In Fig. 6, SP represents loudspeaker, and MIC represents microphone.
With reference to Fig. 7, when transceiver is placed in signal accepting state, the primary coil serial connection switch of signal sending circuit final stage transformer disconnects, parallel connection of secondary windings switch closure, the secondary tandem tap closure of current transformer of signal receiving circuit, signal receiving circuit receives the current signal transmitting in solid conductor communication loop.In Fig. 6, SP represents loudspeaker, and MIC represents microphone.
Claims (4)
1. a underground wireline call system, is characterized in that: it comprises plural wireline call subsystem; Described wireline call subsystem comprises that 1 connects ground and underground single communication conductor, single communication conductor one end is ground ground connection, one end is underground ground connection, on single communication conductor, be connected in series 2 above signal transceivers, one of them transceiver is placed in ground, and remaining transceiver is placed in underground; Single communication conductor and the earth form galvanic circle, form solid conductor communication system with signal transceiver; The signal transceiver that described each wireline call subsystem is placed in ground forms ground call center by switches set, makes to form unified communications between each wireline call subsystem.
2. underground wireline call system according to claim 1, it is characterized in that: in described each wireline call subsystem, the final stage output of the signal sending circuit of signal transceiver adopts transformer to be linked on single communication conductor, a tandem tap of primary coil series connection of transformer, the secondary coil of transformer accesses a paralleling switch in parallel between two access points of single communication conductor; The receiving terminal of the signal receiving circuit of signal transceiver adopts in current transformer access solid conductor communication loop, a tandem tap of current transformer secondary coil series connection.
3. underground wireline call system according to claim 1 and 2, is characterized in that: the switches set of described ground call center is made up of communication switch between the line connecting between two between the single communication conductor of one group of each wireline call subsystem.
4. underground wireline call system according to claim 3, is characterized in that: between the ground earth point of single communication conductor of described each wireline call subsystem and the switches set of ground call center, be respectively provided with an earthed switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420090294.7U CN203734791U (en) | 2014-02-28 | 2014-02-28 | Underground wired calling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420090294.7U CN203734791U (en) | 2014-02-28 | 2014-02-28 | Underground wired calling system |
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| Publication Number | Publication Date |
|---|---|
| CN203734791U true CN203734791U (en) | 2014-07-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420090294.7U Withdrawn - After Issue CN203734791U (en) | 2014-02-28 | 2014-02-28 | Underground wired calling system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103780981A (en) * | 2014-02-28 | 2014-05-07 | 湖南科技大学 | Underground wired calling system |
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2014
- 2014-02-28 CN CN201420090294.7U patent/CN203734791U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103780981A (en) * | 2014-02-28 | 2014-05-07 | 湖南科技大学 | Underground wired calling system |
| CN103780981B (en) * | 2014-02-28 | 2017-01-18 | 湖南科技大学 | Underground wired calling system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140723 Effective date of abandoning: 20161026 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |