CN203734659U

CN203734659U - Mining wired intercommunication broadcast apparatus

Info

Publication number: CN203734659U
Application number: CN201420090313.6U
Authority: CN
Inventors: 程辉; 付国红; 杨天春; 熊彬
Original assignee: Hunan University of Science and Technology
Current assignee: Hunan University of Science and Technology
Priority date: 2014-02-28
Filing date: 2014-02-28
Publication date: 2014-07-23
Anticipated expiration: 2024-02-28

Abstract

Disclosed in the utility model is a mining wired intercommunication broadcast apparatus comprising a communication lead. One end of the communication lead is ground on the ground and the other end is grounded underground. More than two signal transceivers and more than one signal receiver are connected to the lead; and thus the communication lead and the earth form a conductive loop; and the communication lead, the signal transceiver, and the signal receiver form a single lead communication system. At ordinary times, any signal transceiver is in a signal receiving state and the signal sending circuit final stages of the signal transceivers are disconnected with the single lead communication loop; and the signal receiving circuits in the signal transceivers receive the signal in the single lead communication loop. When one signal transceiver needs to send a signal, the signal sending circuit final stage in the signal transceiver is connected to the single lead communication loop; and after amplification, the processed signal is loaded to the single lead communication loop. According to the scheme, the communication distance is long; the principle is simple; the arrangement is fast; the cost is low; and the reliability is high.

Description

A kind of mining wired intercom broadcaster

Background technology

The utility model belongs to mining communication technical field, is specifically related to a kind of mining wired intercom broadcasting method and device.

Technical field

At present, mining 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 telephone to need 2 or above wire transmission signal, be 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, generally formed by trunk optical fiber communication line, local area network (LAN), terminal wireless communication network (WiFi) etc., equipment cost is high, need to set up special communication network, while meeting with larger destruction, system is difficult to quick reparation, is not suitable in the lower use of some emergencies (as disaster communication).

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 mining wired intercom broadcaster quick, with low cost, reliability is higher.

Mining wired intercom broadcaster of the present utility model, it comprises a communication conductor, and one end of this wire is ground ground connection, and one end is underground ground connection; On this communication conductor, access plural signal transceiver and more than 1 signal receiver; This communication conductor and the earth form galvanic circle, form solid conductor communication system with signal transceiver and signal receiver.

Specifically, after a tandem tap of output series connection of the signal sending circuit of signal transceiver, seal in again on single communication conductor, seal in a paralleling switch in parallel between two access points on single communication conductor at signal transceiver; At a tandem tap of receiving terminal series connection of the signal receiving circuit of signal transceiver, the tandem tap of the signal sending circuit of this tandem tap and same signal transceiver forms linked switch; And the receiving terminal of the signal receiving circuit of signal transceiver and the receiving terminal of signal receiver all adopt in current transformer access solid conductor communication loop.

The utility model can adopt little electric current communication can realize solid conductor wired intercom or broadcast, signal transceiver, receiver, wire do after Explosion-proof Design, can in the inferior explosive gas atmosphere of coal mine, use, and can writing to each other in Rapid Establishment ground and down-hole under case of emergency.

In addition, when the utility model is communicated by letter in emergent (disaster relief), single communication conductor 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 down-hole and ground-based transceiver, can also under the prerequisite of not destroying communication conductor, access signal receiver and receive signal (receiver front end employing split core type current transformer), also can on 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 down-hole.

The beneficial effects of the utility model be embodied in following some:

(1) the utility model adopts 1 wire, and utilizes the conduction of the earth to form closed-loop path, carries out intercommunication broadcast along single communication conductor, and principle is simple, workable.

(2) the utility model is only used 1 communication conductor, can realize between any two transceivers along the line intercommunication or to each receiver broadcast along the line, line cost is low, easy to use.

(2) the utility model can Rapid Establishment single conductor communication system, in case of emergency can apply fast.

(3) the utility model adopts wire communication, and communication distance can reach thousands of rice, and reliability is higher.

Brief description of the drawings

Fig. 1 is the principle of device structural representation of the utility model embodiment.

Fig. 2 is the theory structure schematic diagram of signal transceiver in Fig. 1.

Fig. 3 is the theory structure schematic diagram of signal receiver in Fig. 1.

Fig. 4 is the workflow block diagram of signal transceiver intercommunication talking mode of the present utility model.

Fig. 5 is the workflow block diagram of signal transceiver broadcast mode 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, the mining wired intercom broadcaster of the utility model embodiment comprises a communication conductor LN, and one end of wire LN is ground ground connection, and one end is underground ground connection; In Fig. 1, accessed two signal transceivers on communication conductor LN, ground-based transceiver 1 and underground transceiver 2, also accessed several signal receivers, and receiver 3 is to receiver N; Make communication conductor LN and the earth form galvanic circle, form solid conductor communication loop with each signal transceiver and signal receiver.

As can be seen from Fig. 1, after a tandem tap K2 of output series connection of the signal sending circuit of each signal transceiver, seal in again on single communication conductor LN, seal in a paralleling switch K1 in parallel between two access points on single communication conductor at signal transceiver; At a tandem tap K3 of receiving terminal series connection of the signal receiving circuit of signal transceiver, the tandem tap K3 of same signal transceiver and tandem tap K2 form linked switch; And the receiving terminal of the signal receiving circuit of each signal transceiver and the receiving terminal of each signal receiver all adopt in current transformer access solid conductor communication loop.

Referring to Fig. 2, it is the theory structure schematic diagram of signal transceiver in Fig. 1.Signal transceiver comprises signal sending circuit and signal receiving circuit two parts, transceiver is not when transmitted signal, the tandem tap K2 of signal sending circuit final stage series connection disconnects, the corresponding paralleling switch K1 closure that is incorporated to solid conductor communication loop, simultaneously, tandem tap K3 closure in signal receiving circuit, now signal sending circuit is not worked, current transformer L1 in signal receiving circuit can be transformed into voltage signal by the current signal on single communication line, after amplifying, promotes loudspeaker SP(or earphone) sounding; When transceiver transmitted signal, the tandem tap K2 closure of signal sending circuit final stage series connection, paralleling switch K1 disconnects, simultaneously, tandem tap K3 in signal receiving circuit disconnects, voice signal is transformed into the signal of telecommunication by microphone MIC, after amplifying, is loaded into the current signal on single wire communication loop, and the signal receiving circuit in other signal receiver or the transceiver that can be connected on solid conductor communication loop receives.Therefore, can realize the wired broadcasting on solid conductor, between any two transceivers that connect, also can carry out intercommunication on solid conductor communication loop, the signal sending when intercommunication also can be received by other receivers.

Referring to Fig. 3, it is the theory structure schematic diagram of signal receiver in Fig. 1.Signal receiver comprises current transformer L, signal amplification circuit, loudspeaker SP(or earphone), current signal in solid conductor communication loop, through current transformer, L changes voltage signal into, after signal amplification circuit amplifies, by loudspeaker or earphone sounding, obtain the voice signal that certain signal transceiver sends.

Referring to Fig. 4, it is the workflow block diagram of signal transceiver intercommunication talking mode of the present utility model.It (is the K2 closure of transceiver that a transceiver A on single communication conductor in transceiver is placed in signal transmission state, K1 disconnects, K3 disconnects), all the other transceivers are placed in signal accepting state, and (the transtation mission circuit final stage tandem tap K2 that is transceiver disconnects, K switch 1 closure, K switch 3 closures), signal sends output signal and can be received by the receiving circuit of all receivers on solid conductor communication loop and all the other transceivers, after A transceiver transmitted signal, switch to signal accepting state, called transceiver is received after the signal of A transmission, switch to signal and send state transmitted signal, A like this, between B transceiver, can utilize single conductor communication loop to carry out intercommunication call, A after talk-through, B transceiver is all placed in signal accepting state, discharge communication line.

Referring to Fig. 5, it is the workflow block diagram of signal transceiver broadcast mode of the present utility model.A transceiver A on solid conductor communication loop is placed in signal and sends state, all the other transceivers and receiver are all placed in signal accepting state, realize the broadcast capability of A to all transceivers and receiver, after off-the-air, transceiver A is placed in signal accepting state, waits for new calling.

Must be pointed out, above-described embodiment is a kind of implementation of the present utility model, can not limit accordingly the scope of protection of the present utility model, and other equivalent circuit still belong to protection range of the present utility model.

Claims

1. a mining wired intercom broadcaster, is characterized in that: it comprises a communication conductor, and one end of this wire is ground ground connection, and one end is underground ground connection; On this communication conductor, access plural signal transceiver and more than 1 signal receiver; This communication conductor and the earth form galvanic circle, form solid conductor communication system with signal transceiver and signal receiver.

2. mining wired intercom broadcaster according to claim 1, it is characterized in that: after a tandem tap of output series connection of the signal sending circuit of signal transceiver, seal in again on single communication conductor, seal in a paralleling switch in parallel between two access points on single communication conductor at signal transceiver; At a tandem tap of receiving terminal series connection of the signal receiving circuit of signal transceiver, the tandem tap of the signal sending circuit of this tandem tap and same signal transceiver forms linked switch; And the receiving terminal of the signal receiving circuit of signal transceiver and the receiving terminal of signal receiver all adopt in current transformer access solid conductor communication loop.