Underground coal mine long-distance leakage communication system

Abstract

An underground coal mine long-distance leakage communication system comprises a transfer station, an antenna port of the transfer station is connected with a radio frequency input port of a first distributor through a radio frequency cable, the first distributor comprises at least two radio frequency output ports, the radio frequency output ports of the first distributor are connected with one end of a first leakage cable, and the other end of the first leakage cable is connected with an antenna port of the transfer station. The other end of the first leaky cable is connected with the terminal resistor, and the first leaky cable can perform wireless signal interaction with an underground interphone, a vehicle-mounted station and a base station. According to the utility model, short-distance wireless signal interaction with equipment such as an underground interphone, a vehicle-mounted station and a base station can be realized through the leaky cable, so that underground long-distance stable and timely communication can be realized; and meanwhile, the underground full-range coverage can be realized with lower cost by using the plurality of distributors and the relay amplifiers to be matched with the leaky cable, so that the stability of underground communication can be ensured.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of underground communication, specifically a coal mine underground long distance leak communication system. BACKGROUND

[0002] Coal is now indispensable energy, the present coal mining process needs to open the mine for mining, but because the depth of the mine is deep, the production process needs close exchange in the well and the well, and in the mining process, water seepage, gas outburst and other safety hazards are prone to occur, if the underground workers continue to work under the safety hazards without timely treatment, accidents may occur, therefore, the timely communication in the well is extremely important, the current underground communication system is more common for two kinds of wired communication system and wireless communication system, but the wired communication system needs to be fixedly arranged and is inconvenient for emergency communication, and the wireless communication system can be carried for communication, but the underground environment is relatively complex, and the depth of the well is relatively deep, when the transmitting and receiving device arranged on the well carries out wireless communication, signal transmission may have problems, thereby failing to carry out timely communication, thereby affecting the communication between the well and the well in production and possibly causing safety hazards. CONTENT OF THE UTILITY MODEL

[0003] The utility model provides a coal mine underground long distance leak communication system for solving the defects in the prior art.

[0004] The utility model is implemented through the following technical solutions:

[0005] A coal mine underground long distance leak communication system, including the transfer station, the antenna mouth of transfer station is connected with the radio frequency input of first distributor through radio frequency cable, first distributor includes at least two radio frequency output, the radio frequency output of first distributor is connected with one end of first leak cable, the other end of first leak cable is connected with terminal resistance, first leak cable can carry out wireless signal interaction with intercom, vehicle-mounted station and base station in the well.

[0006] The utility model discloses a coal mine underground long distance leak communication system, transfer station is connected with the output of DC voltage stabilizing power supply through two core sheath cable, the input end of DC voltage stabilizing power supply is connected with AC through two core sheath cable.

[0007] The utility model discloses a coal mine underground long distance leak communication system, set up a relay amplifier every 400m on first leak cable.

[0008] The first leaky cable is connected with the input port of the second distributor, the second distributor includes at least two output ports, the output port of the second distributor is connected with one end of the second leaky cable, and the other end of the second leaky cable is connected with a terminal resistor.

[0009] The second leaky cable is connected with the input port of the third distributor, the third distributor includes at least two output ports, the output port of the third distributor is connected with one end of the third leaky cable, and the other end of the third leaky cable is connected with a terminal resistor.

[0010] The utility model discloses a kind of coal mine underground long-distance leaky communication systems, the other end of the first leaky cable can be connected with the input port of second distributor, the second distributor includes at least two output ports, the output port of the second distributor is connected with one end of second leaky cable, the other end of the second leaky cable is connected with terminal resistor. BRIEF DESCRIPTION OF DRAWINGS

[0011] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or prior art description. Obviously, the drawings in the following description are some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor.

[0012] Figure 1 It is the structural schematic diagram of the utility model.

[0013] Reference signs: 1, transfer station; 2, radio frequency cable; 3, first distributor; 4, first leaky cable; 5, interphone; 6, vehicle-mounted station; 7, base station; 8, two-core sheath cable; 9, DC stabilized power supply; 10, relay amplifier; 11, second distributor; 12, second leaky cable; 13, third distributor; 14, third leaky cable; 15, terminal resistor. DETAILED DESCRIPTION

[0014] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the following will combine the drawings in the embodiments of the present application to clearly and completely describe the technical scheme in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0015] The utility model relates to a coal mine underground long-distance leakage communication system, including transfer station 1, the antenna mouth of transfer station 1 is connected with the radio frequency input mouth of first distributor 3 through radio frequency cable 2, first distributor 3 includes at least two radio frequency output mouths, the radio frequency output mouth of first distributor 3 is connected with the one end of first leakage cable 4, the other end of first leakage cable 4 is connected with terminal resistance 15, first leakage cable 4 can carry out wireless signal interaction with intercom 5, vehicle-mounted station 6 and base station 7 in underground, vehicle-mounted station 6 is arranged on all vehicles in underground, and base station 7 is arranged at fixed position in underground and is powered through underground power supply line, intercom 5 is carried by the underground personnel, because intercom 5 needs to be charged periodically, if intercom 5 suddenly cannot be used due to uncharged or failure, still can carry out communication through vehicle-mounted station 6 and base station 7, ensure the stable normal communication in underground.

[0016] Specifically, the transfer station 1 is connected with the output port of the DC voltage stabilizing power supply 9 through the two-core sheath cable 8, and the input end of the DC voltage stabilizing power supply 9 is connected with the AC power supply through the two-core sheath cable 8. The DC voltage stabilizing power supply 9 plays a role in stabilizing power supply in the utility model, and ensures the normal use of the transfer station 1.

[0017] Specifically, the first leakage cable 4 is provided with a relay amplifier 10 every 400m. The relay amplifier 10 can ensure the stability of signal transmission in the utility model, so as to ensure the normal and stable communication in underground.

[0018] Further, the other end of the first leakage cable 4 can be connected with the input port of the second distributor 11, the second distributor 11 includes at least two output ports, the output port of the second distributor 11 is connected with the one end of the second leakage cable 12, and the other end of the second leakage cable 12 is connected with the terminal resistance 15.

[0019] Further, the other end of the first leakage cable 4 can be connected with the input port of the second distributor 11, the second distributor 11 includes at least two output ports, the output port of the second distributor 11 is connected with the one end of the second leakage cable 12, and the other end of the second leakage cable 12 is connected with the terminal resistance 15.

[0020] Finally, it should be noted that: the above examples are used to illustrate the technical solutions of the present application, but not limited to; although the present application is described in detail with reference to the foregoing examples, those skilled in the art should understand that: it can still be modified to the technical solutions recorded in the foregoing examples, or part of the technical features are replaced; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A coal mine underground long distance leaky communication system, characterized in that: The application relates to a relay station (1) which is connected to the radio frequency input of a first distributor (3) through a radio frequency cable (2), the first distributor (3) comprising at least two radio frequency outputs, the radio frequency output of the first distributor (3) being connected to one end of a first leaky cable (4), the other end of the first leaky cable (4) being connected to a terminal resistor (15), the first leaky cable (4) being capable of wireless signal interaction with a downhole interphone (5), a vehicle-mounted station (6) and a base station (7).

2. A coal mine long haul leaky pipe communication system according to claim 1 wherein: The relay station (1) is connected to the output of a direct current voltage stabilizer (9) through a two-core sheath cable (8), and the input of the direct current voltage stabilizer (9) is connected to alternating current through the two-core sheath cable (8).

3. A coal mine underground long distance leaky pipe communication system according to claim 1, characterized in that: A repeater amplifier (10) is arranged on the first leaky cable (4) every 400 m.

4. A coal mine long distance leaky pipe communication system according to claim 1, characterized in that: The other end of the first leaky cable (4) is connected to the input of a second distributor (11), the second distributor (11) comprising at least two outputs, the output of the second distributor (11) being connected to one end of a second leaky cable (12), the other end of the second leaky cable (12) being connected to a terminal resistor (15).

5. A coal mine long haul leaky pipe communication system according to claim 4 wherein: The other end of the second leaky cable (12) is connected to the input of a third distributor (13), the third distributor (13) comprising at least two outputs, the output of the third distributor (13) being connected to one end of a third leaky cable (14), the other end of the third leaky cable (14) being connected to a terminal resistor (15).

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