CN205792556U - A kind of mine optical fiber digital telephone and emergency communication system - Google Patents

Abstract

The utility model discloses mine optical fiber digital telephone and emergency communication system, this emergency communication system includes that optical cable, optical cable one end are connected with the optical fiber telephone resting on the ground, and the optical cable other end is connected with optical branching device；Optical branching device is respectively connected with being installed on the optical fiber telephone of diverse location under mine；Optical fiber telephone includes optical transceiver module, optical transceiver module transmits next optical signal for receiving optical cable and is sent in controller module, controller module is delivered to decoder module be decoded for being received optical signal, signal after decoded is sent to D/A modular converter and carries out signal conversion, and the signal after conversion is played out by voice playing module；Optical fiber telephone also includes voice acquisition module, voice acquisition module is used for gathering voice signal and being converted into the signal of telecommunication, the signal of telecommunication after conversion is sent to coding module after A/D modular converter is changed and encodes, signal after coding is sent to controller module, and controller module will receive signal and be sent to optical cable through optical transceiver module.

Description

A mine optical fiber digital telephone and emergency communication system

technical field

The utility model belongs to the field of electronic communication, in particular to a mine optical fiber digital telephone and an emergency communication system.

Background technique

The coal mine communication system is one of the six major systems of the coal mine, which plays an important role in the safe production of coal. The communication system is indispensable in the daily production scheduling, command, management, and emergency evacuation and rescue of coal mines. It is the first lifeline to ensure the safety of coal mine workers. However, once a safety accident occurs, secondary disasters such as power cuts, collapses, water penetration, and gas concentration exceeding the standard will completely disable the existing communication systems and monitoring systems based on circuits and electrical signals, and will not be able to play the role of emergency rescue. Therefore, it is imminent to study and use an emergency communication system independent of the existing communication system. Optical fiber sensing technology, because of its unique advantages of no power supply, long-distance transmission, and intrinsic safety, will play a major role in mine safety production monitoring and emergency rescue, and will play a major role in ensuring mine production safety, preventing safety accidents, reducing The occurrence of accidents and the loss of life and property are of great significance.

In the event of an emergency power outage, keep the communication between the mine and the mine unblocked, and provide real-time disaster information. For rescuers, they can make a comprehensive judgment on the underground environment and personnel survival in a short period of time, and provide timely disaster relief and rescue command and underground personnel. Providing important information for rescue decisions plays an important role.

The existing mine communication system has the following deficiencies: Most of the existing mine communication systems use program-controlled telephones or IP telephones, and communicate through special couplers and switches or industrial ring networks. Under certain circumstances, when any one of the underground ring network, switches, couplers and communication cables is damaged, the existing program-controlled telephone or IP telephone communication system will be unusable; and the existing mining IP telephone is transmitted through the underground ring network, through Different voice gateways perform voice interaction, follow the TCP/IP protocol, and have a complex structure. When transmitting large amounts of data, other devices on the ring network will work unstable.

Utility model content

In order to solve the shortcomings of the prior art, the utility model provides a mining optical fiber digital telephone and communication system with simple structure and strong anti-interference performance.

The utility model adopts the following technical solutions:

A digital optical fiber phone for mining, including an optical transceiver module, the optical transceiver module is used to receive the optical signal transmitted by the optical cable and transmit it to the controller module, and the controller module is used to send the received optical signal to the decoder The module decodes, and the decoded signal is sent to the D/A conversion module for signal conversion, and the converted signal is played by the voice playback module;

The mine-used digital optical fiber telephone also includes a voice acquisition module, the voice acquisition module is used to collect voice signals and convert them into electrical signals, and the converted electrical signals are converted by the A/D conversion module and then sent to the encoding module for encoding. The final signal is transmitted to the controller module, and the controller module transmits the received signal to the optical cable through the optical transceiver module.

The controller module is also connected with a status indicator light. Light the status indicator of the corresponding channel to remind the caller.

The controller module is also connected with a buzzer for ringing to remind the called party.

The controller module and the optical transceiver module communicate with each other through a serial port.

The voice collection module is a microphone.

The voice playing module is a power amplifier and a loudspeaker connected in series.

An emergency communication system, including several above-mentioned mine digital fiber optic telephones, said mine digital fiber optic telephones are respectively installed on the ground and under the mine, and the mine digital fiber optic telephones on the ground communicate with the mine through optical cables and optical splitters. The next several mining digital fiber optic telephones are connected.

The optical cable is a one-core optical cable.

The beneficial effects of the utility model are:

(1) The utility model can realize two-way voice communication through a main optical cable on the well and underground, and all optical fiber telephone terminals can realize two-way voice communication. After the voice information is digitized, it passes through the optical transceiver module, which has strong anti-interference ability and system expansion Convenient, long transmission distance, low power consumption, as a supplement to the existing IP phone and program-controlled phone, in an emergency situation when the conventional phone cannot be used, it will play a dispatching role as an emergency phone;

(2) The utility model uses a dedicated optical fiber network for transmission, which is uncharged, intrinsically safe, and does not use an industrial ring network. If the industrial ring network is damaged or the program-controlled telephone transmission line is damaged, it will not affect the use. The structure is simple, the work is stable, and various voices are omitted. Gateways, program-controlled telephone exchanges, couplers, ring network switches and other equipment; the application occasions of the utility model include mines, tunnels, underground pipe corridors, petrochemical warehouses, civil explosions and other occasions with gas or other dangerous gases.

Description of drawings

Fig. 1 is the structural representation of the optical fiber emergency communication system of the present utility model;

Fig. 2 is a structural schematic diagram of the mine-used digital optical fiber telephone of the present invention.

Among them, 1. Digital optical fiber telephone for mining on the ground, 2. Optical splitter, 3. No. 1 digital optical telephone for mining installed in the mine, 4. Digital optical fiber telephone for mining No. 2 installed in the underground, 5 , No. 8 mining digital optical fiber telephone installed under the mine, 6. Optical transceiver module, 7. Controller module, 8. Decoding module, 9. D/A conversion module, 10. Voice playback module, 11. Voice acquisition module , 12, A/D conversion module, 13, encoding module, 14, status indicator light, 15, buzzer.

detailed description

Below in conjunction with accompanying drawing and embodiment the utility model is described further:

As shown in Figure 1, the optical fiber emergency communication system for mining includes an optical cable, one end of the optical cable is connected with the digital optical fiber telephone 1 for mining on the ground, and the other end of the optical cable is connected with the optical splitter 2; the optical splitter 2 are respectively connected with the mining digital optical fiber telephone installed in different positions under the mine.

In this embodiment, the optical splitter 2 takes a 1*8 optical splitter as an example, and the optical splitter may also use other optical splitters with various interfaces.

1*8 optical splitter is connected to No. 1 mine digital fiber optic phone installed under the mine 3, No. 2 mine digital fiber optic phone installed under the mine 4, No. 3 mine digital fiber optic phone installed under the mine, installation No. 4 mine-use digital fiber-optic telephone installed in the mine, No. 5 mine-use digital fiber-optic telephone installed in the mine, No. 6 mine-use digital fiber-optic telephone installed in the mine, and No. 7 mine-use digital fiber-optic telephone installed in the mine And No. 8 mine-used digital optical fiber telephone 5 installed in the mine.

The schematic diagram of the digital optical fiber phone for mining is shown in Figure 2. The mine-used digital optical fiber telephone includes an optical transceiver module 6, and the optical transceiver module 6 is used to receive the optical signal transmitted by the optical cable and transmit it to the controller module 7, and the controller module 7 is used to send the received optical signal to The decoding module 8 decodes, and the signal after decoding is sent to the D/A conversion module 9 for signal conversion, and the converted signal is played by the voice playback module 10;

The mine-used digital optical fiber telephone also includes a voice collection module 11, and the voice collection module 11 is used to collect voice signals and convert them into electrical signals, and the converted electrical signals are converted by the A/D conversion module 12 and sent to the encoding module for encoding. The encoded signal is transmitted to the controller module 7, and the controller module transmits the received signal to the optical cable through the optical transceiver module 6.

Wherein, in this embodiment of the utility model, the speech collection module 11 adopts a microphone; the speech playback module 10 adopts a power amplifier and a loudspeaker connected in series; and the optical cable is a one-core optical cable.

The controller module 7 is also connected with a status indicator light 14, which is used to indicate the calling party when the status indicator light of the corresponding channel is turned on.

The controller module 7 is also connected with a buzzer 15 for ringing to remind the called party.

The controller module 7 is also connected with the backup power supply, and is used for using the backup power supply to provide electric energy for the optical fiber phone when the normal power supply is damaged. Mine-used digital optical fiber telephones work with mining intrinsically safe power supply (12v or 18v). The power supply of optical fiber telephones is 3.3v or 5v. The direct current of intrinsically safe power supply is converted into 3.3v by DC-DC module for all chips and Integrated circuit power supply, when the power is cut off, rely on the backup battery inside the intrinsically safe power supply to work, according to the capacity of the backup battery of the conventional intrinsically safe power supply and the power consumption of the optical fiber digital phone, it can work for about 2 months.

The encoding module and the decoding module in this embodiment are realized by using the ambe-1000 chip, and the ambe-1000 chip integrates the encoding and decoding modules at the same time.

The controller module can be implemented using any single-chip microcomputer.

The normally open buttons with indicator lights respectively represent nine optical fiber telephones on the ground and underground, wherein the normally open buttons are used for calling. The optical fiber digital telephones all have addresses, which are set through the program, respectively 00-08, where 00 represents the ground optical fiber telephone, and 01-08 represent the underground optical fiber telephone respectively. The working engineering is described in detail below:

(1) When the ground is talking with any fiber optic phone in the underground, press the button corresponding to the fiber optic phone you want to call in the underground. Call instruction, this call instruction contains the address of the calling party and the address of the called party, the instruction is transmitted through the optical transceiver module 6, and then reaches each optical fiber telephone underground through the 1*8 optical splitter, at this time, the internal optical fiber telephone of the underground The controller module 7 analyzes the received instruction, and if the address corresponds, the controller module 7 sends a ringing signal, and at the same time lights up the indicator light of the corresponding channel to indicate the calling party. If someone on the scene answers the phone, it will enter the call process, the voice of the microphone is converted into a digital signal through the A/D conversion module, and then enters the ambe-1000 for encoding, and the encoded voice information is transmitted to the controller module, and the controller module 7 through the serial port Send to the optical transceiver integrated module, at this time the voice information is transformed into digital optical signal transmission, when transmitted to the downhole fiber optic phone, it is first converted into a digital electrical signal by the optical transceiver module 6, and then the controller module 7 receives it through the serial port, the controller module 7 After receiving, send the information to ambe-1000 through the I/O port for decoding, and then send the decoded information to the D/A conversion module 9 for digital-to-analog conversion, and then push the speaker to sound through the power amplifier to restore the sound information.

The conversation process from downhole to uphole is exactly the same as the above-mentioned work process, so it will not be repeated.

The calling and communication engineering from the underground fiber optic phone to the ground fiber optic phone are similar to the above-mentioned working process, and will not be described in detail.

(2) When the two optical fiber telephone terminals in the underground are communicating, take the mining digital optical fiber telephone 1 on the ground to call the No. 2 mining digital optical fiber telephone 4 installed in the mine as an example, press the The button corresponding to the digital fiber optic telephone 4, when the internal controller module 7 of the No. 1 mine digital fiber optic telephone 3 installed under the mine detects that the call button is pressed, it sends a call instruction corresponding to the address of the optical fiber telephone through the serial port. This call instruction includes The address of the calling party and the address of the called party are received, the instruction is transmitted through the optical transceiver module 6, and then reaches the optical transceiver integrated module of the optical fiber telephone on the ground through the 8*1 optical splitter, and after being converted into an electrical digital signal, the controller module 7 Receive this command through the serial port, when you find that you are not the called party, then forward the information through the serial port, the call command will reach all the optical fiber telephones in the underground, and the internal controller module of the digital telephone in the underground will analyze the received command, only The address corresponding to the No. 2 mining digital optical fiber telephone 4 installed under the mine, then the controller module of the No. 2 mining digital optical fiber telephone 4 installed under the mine sends a ringing signal, and at the same time lights up the corresponding indicator light of the calling party , which is used to indicate that the calling party is the No. 1 mining digital fiber optic telephone 3. If there is someone on the spot to answer the phone, then enter the call process, the sound of the microphone of the No. 2 mining digital optical fiber telephone 4 installed under the mine is converted into a digital signal by the A/D conversion module 12, and then enters the ambe-1000 for encoding, after encoding The voice information is transmitted to the controller module, and the controller module 7 sends it to the optical transceiver module through the serial port. At this time, the voice information is converted into digital optical signal transmission, first transmitted to the ground fiber optic phone, and then the ground fiber optic phone forwards the voice information Going out, after arriving at No. 1 mining digital fiber optic phone 3, it is transformed into a digital electrical signal through the optical transceiver module 6, and then the controller module 7 receives it through the serial port. After the controller module 7 receives the information, it sends the information to the ambe- 1000 for decoding, and the decoded information is sent to the D/A conversion module 9 for digital-to-analog conversion, and then the speaker is driven to sound through the power amplifier to restore the sound information. The microphone voice information transmission process of No. 1 mine-used digital optical fiber telephone 3 is consistent with the above-mentioned process, and it is also forwarded through the ground optical fiber telephone, so it will not be repeated.

Although the specific implementation of the utility model has been described above in conjunction with the accompanying drawings, it does not limit the protection scope of the utility model. Those skilled in the art should understand that on the basis of the technical solution of the utility model, those skilled in the art do not need to Various modifications or deformations that can be made with creative efforts are still within the protection scope of the present utility model.

Claims (7)

1. a mine digital optical fiber telephone, it is characterised in that include that optical transceiver module, described optical transceiver module are used for receiving light Cable transmits the optical signal come and is sent in controller module, and described controller module delivers to decoding for receiving optical signal Module is decoded, decoded after signal be sent to D/A modular converter and carry out signal conversion, the signal after conversion is broadcast by voice Amplification module plays out；

Described mine digital optical fiber telephone also includes that voice acquisition module, described voice acquisition module are used for gathering voice signal also Being converted into the signal of telecommunication, the signal of telecommunication after conversion is sent to coding module after A/D modular converter is changed and encodes, after coding Signal is sent to controller module, and controller module will receive signal and be sent to optical cable through optical transceiver module.

2. a kind of mine digital optical fiber telephone as claimed in claim 1, it is characterised in that described controller module is also associated with Status indicator lamp.

3. a kind of mine digital optical fiber telephone as claimed in claim 1, it is characterised in that described controller module is also associated with Buzzer.

4. a kind of mine digital optical fiber telephone as claimed in claim 1, it is characterised in that described controller module is received and dispatched with light Module is in communication with each other by serial ports.

5. a kind of mine digital optical fiber telephone as claimed in claim 1, it is characterised in that described voice acquisition module is Mike Wind；Described voice playing module is the power amplifier and loudspeaker being connected in series.

6. an emergency communication system, it is characterised in that include several mine digital light as described in claim 1-5 is arbitrary Fine phone, described mine digital optical fiber telephone is respectively arranged on ground and under mine, the mine digital optical fiber resting on the ground Phone is connected with mine pectus mine digital optical fiber telephone with optical branching device by optical cable.

7. a kind of emergency communication system as claimed in claim 6, it is characterised in that described optical cable is a core optical cable.