Mining intrinsic safety type communication substation

Abstract

The utility model provides a mining intrinsic safety type communication substation, and belongs to the technical field of communication. The mining intrinsic safety type communication substation is characterized in that a first input end of an OR module is used for receiving a temperature signal; or the second input end of the module is used for receiving a gas concentration signal; or the output end of the module and the electromagnetic detection module are both connected with the control module; the first end of the first switch module is connected with the control module, the second end of the first switch module is connected with the communication module, and the control end of the first switch module is connected with the control module; the first end of the second switch module is connected with the control module, the second end of the second switch module is connected with the signal enhancement module, and the control end of the second switch module is connected with the control module; the signal enhancement module is connected with the DC / DC isolation power supply module and the communication module. The DC / DC isolated power supply module is configured to stabilize a power supply voltage. According to the invention, the problems of poor data transmission stability and high energy consumption can be solved.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of communication, and particularly relates to a mine intrinsic safety communication substation. BACKGROUND

[0002] In the mining operation environment, the communication system is crucial, which is related to the information interaction between the underground operation area and the ground command center, and directly affects the timeliness of production scheduling, safety warning and emergency rescue and the like. Moreover, the underground environment is complex and poor, which is full of flammable and explosive gases, and also has strong electromagnetic interference. Therefore, the existing communication substation has the problems of poor data transmission stability and high energy consumption. CONTENT OF THE INVENTION

[0003] The present disclosure provides a mine intrinsic safety communication substation to solve the problems of poor data transmission stability and high energy consumption.

[0004] The present disclosure provides a mine intrinsic safety communication substation, comprising:

[0005] or a module, a control module, a first switch module, a second switch module, a communication module, a signal enhancement module, a DC / DC isolation power supply module and an electromagnetic detection module;

[0006] The first input end of the or module is configured to receive a temperature signal;

[0007] The second input end of the or module is configured to receive a gas concentration signal;

[0008] The output end of the or module and the electromagnetic detection module are both connected with the control module;

[0009] The first end of the first switch module is connected with the control module, the second end of the first switch module is connected with the communication module, and the control end of the first switch module is connected with the control module;

[0010] The first end of the second switch module is connected with the control module, the second end of the second switch module is connected with the signal enhancement module, and the control end of the second switch module is connected with the control module;

[0011] The signal enhancement module is connected with the DC / DC isolation power supply module and the communication module respectively;

[0012] The DC / DC isolation power supply module is configured to stabilize the power supply voltage.

[0013] In an exemplary embodiment of the present disclosure, the signal enhancement module comprises a MOS tube Q7, a capacitor C13, a resistor R62, a resistor R63, a resistor R64 and an amplifier U1A;

[0014] The gate of the MOS tube Q7 is connected with the output end of the second switch module, the drain of the MOS tube Q7 is connected with the output end of the DC / DC isolation power supply module through the resistor R62, and the source of the MOS tube Q7 is grounded.

[0015] The first end of the resistor R64 is connected with the drain of the MOS tube Q7, the second end of the resistor R64 is connected with the inverting input end of the amplifier U1A, the noninverting input end of the amplifier U1A is grounded, the output end of the amplifier U1A is connected with the inverting input end of the amplifier U1A through the resistor R63 in a feedback mode, and the capacitor C13 is connected in parallel across the resistor R63.

[0016] The output end of the amplifier U1A is connected with the communication module.

[0017] In an exemplary embodiment of the present disclosure, the mine intrinsic safety type communication substation further comprises a temperature comparator, a gas concentration comparator, a temperature detection module and a gas detection module.

[0018] The temperature detection module is connected with the noninverting input end of the temperature comparator;

[0019] The inverting input end of the temperature comparator is used for receiving a temperature reference value Vref2, and the output end of the temperature comparator is connected with the first input end of the or module.

[0020] The gas detection module is connected with the noninverting input end of the gas concentration comparator;

[0021] The inverting input end of the gas concentration comparator is used for receiving a gas concentration reference value Vref1, and the output end of the gas concentration comparator is connected with the second input end of the or module.

[0022] In an exemplary embodiment of the present disclosure, the mine intrinsic safety type communication substation further comprises a heat dissipation module;

[0023] The heat dissipation module is connected with the output end of the temperature comparator.

[0024] In an exemplary embodiment of the present disclosure, the mine intrinsic safety type communication substation further comprises a humidity detection module and a humidity comparator;

[0025] The humidity detection module is connected with the noninverting input end of the humidity comparator;

[0026] The inverting input end of the humidity comparator is used for receiving a humidity reference value Vref3, and the output end of the humidity comparator is connected with the control module.

[0027] In an exemplary embodiment of the present disclosure, the mine intrinsic safety type communication substation further comprises a dehumidification module;

[0028] The dehumidification module is connected with the output end of the humidity comparator.

[0029] In an example embodiment of the present disclosure, the communication module comprises a plurality of communication units and a plurality of communication unit interfaces.

[0030] In an example embodiment of the present disclosure, the intrinsically safe communication substation for mine also comprises an alarm module.

[0031] The alarm module is connected to the control module.

[0032] The intrinsically safe communication substation for mine provided by the example embodiments of the present disclosure has the following beneficial effects.

[0033] The present disclosure monitors the temperature signal and the gas concentration signal through the or module, and can timely detect abnormal changes in the underground environment. When the temperature rises or the concentration of harmful gas exceeds the standard, the control module is rapidly fed back, thereby ensuring the safety of underground operation. The DC / DC isolation power supply module stabilizes the power supply voltage, and its isolation function effectively prevents power supply interference, thereby improving the reliability and safety of the present disclosure. In particular, in a mine with a complex electromagnetic environment, the present disclosure can avoid equipment failure caused by power fluctuations. The electromagnetic detection module monitors electromagnetic interference in real time, so that the present disclosure can flexibly respond to interference conditions and ensure communication quality. The first switch module and the second switch module are controlled by the control module to accurately control the working state of the communication module and the signal enhancement module. The signal enhancement module enhances the communication signal when needed, ensures the stability and continuity of communication in a complex underground environment, effectively avoids signal interruption or loss, and improves the practicality and adaptability of the entire communication substation, thereby providing a powerful guarantee for mine safety production. Therefore, the present disclosure can solve the problems of poor data transmission stability and high energy consumption. BRIEF DESCRIPTION OF DRAWINGS

[0034] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are only some embodiments of the present disclosure, and other drawings can be obtained by those skilled in the art without creative labor.

[0035] Figure 1 is a structural schematic diagram of an intrinsically safe communication substation for mine provided by the example embodiments of the present disclosure;

[0036] Figure 2 is a circuit structure schematic diagram of a signal enhancement module provided by the example embodiments of the present disclosure;

[0037] Figure 3 is a structural schematic diagram of another intrinsically safe communication substation for mine provided by the example embodiments of the present disclosure. DETAILED DESCRIPTION

[0038] In order to make the person skilled in the art better understand the scheme, the technical solutions in the scheme embodiments will be clearly described in combination with the drawings in the scheme embodiments. Obviously, the described embodiments are part of the embodiments of the scheme, not all. Based on the embodiments in the scheme, all other embodiments obtained by the person skilled in the art without creative labor should belong to the protection scope of the scheme.

[0039] The term "comprising" and other any variations thereof in the specification and claims of the scheme and the above-mentioned drawings means "including but not limited to", which is intended to cover non-exclusive inclusion and is not limited to the examples listed in the text. In addition, the terms "first" and "second" and the like are used to distinguish different objects, not to describe a specific order.

[0040] The implementation of the present disclosure is described in detail below in combination with specific drawings:

[0041] Figure 1 A structural schematic diagram of a mine intrinsic safety type communication substation provided by the embodiment of the present disclosure is provided. Referring to Figure 1 The mine intrinsic safety type communication substation comprises:

[0042] or module 101, control module 102, first switch module 103, second switch module 104, communication module 105, signal enhancement module 106, DC / DC isolation power supply module 107 and electromagnetic detection module 108;

[0043] The first input end of the or module 101 is used for receiving a temperature signal;

[0044] The second input end of the or module 101 is used for receiving a gas concentration signal;

[0045] The output end of the or module 101 and the electromagnetic detection module 108 are both connected with the control module 102;

[0046] The first end of the first switch module 103 is connected with the control module 102, the second end of the first switch module 103 is connected with the communication module 105, and the control end of the first switch module 103 is connected with the control module 102;

[0047] The first end of the second switch module 104 is connected with the control module 102, the second end of the second switch module 104 is connected with the signal enhancement module 106, and the control end of the second switch module 104 is connected with the control module 102;

[0048] The signal enhancement module 106 is connected with the DC / DC isolation power supply module 107 and the communication module 105 respectively;

[0049] The DC / DC isolation power supply module 107 is configured to stabilize the power supply voltage.

[0050] In the embodiment, or module 101 can implement logical or operation function, and logical judgment is performed on input temperature signal and gas concentration signal. When the received temperature signal or gas concentration signal meets the first condition, an effective signal is output to the control module 102, triggering the subsequent control action. The first condition is that the temperature signal is greater than or equal to the temperature safety preset value, or the gas concentration signal is greater than or equal to the gas concentration safety preset value. The effective signal is a high level signal “1”.

[0051] The control module 102 is configured to receive the signals of the or module 101 and the electromagnetic detection module 108, and according to the above signals, the on-off state of the first switch module 103 and the second switch module 104 can be controlled, so as to realize the control of the communication module 105 and the signal enhancement module 106. For example, when receiving the high level signal of the or module 101, the control module 102 receives the closing instruction of the or module 101, controls the first switch module 103 to connect the communication module 105, and transmits the temperature or gas concentration condition to the terminal through the communication module 105, which is monitored by the remote personnel; until the or module 101 becomes a low level signal, the control module 102 sends an opening instruction to control the first switch module 103 to disconnect the connection with the communication module 105, stops transmitting information to the terminal, and reduces the energy consumption. At the same time, when the electromagnetic detection module 108 detects strong electromagnetic interference, the control module 102 can control the second switch module 104 to connect the signal enhancement module 106, so as to ensure the communication quality.

[0052] The first switch module 103 is configured to realize the circuit on-off between the communication module 105 and the control module 102 under the control of the control module 102. The first end of the first switch module 103 receives the information to be transmitted by the control module 102, the second end is connected with the communication module 105, and the control end is controlled by the control module 102.

[0053] The second switch module 104 is configured to realize the circuit on-off between the signal enhancement module 106 and the control module 102 under the instruction of the control module 102. The first end of the second switch module 104 receives the information to be transmitted by the control module 102, the second end is connected with the signal enhancement module 106, and the control end is controlled by the control module 102.

[0054] The signal enhancement module 106 is configured to perform enhancement processing on the communication signal in the open state, improve the strength and quality of the communication signal, and enhance the transmission capacity of the signal.

[0055] The DC / DC isolation power supply module 107 is configured to stabilize the power supply voltage and provide electrical isolation function at the same time. The module can convert the input unstable direct current power supply into stable output direct current voltage.

[0056] The electromagnetic detection module 108 is configured to detect the electromagnetic interference in the surrounding environment in real time, and send the detection result to the control module 102, so that the electromagnetic interference factors affecting communication can be found in time. When the electromagnetic detection module 108 detects that there is electromagnetic interference, the signal enhancement module 106 is started by the control module 102 to perform signal enhancement, so as to ensure the signal quality.

[0057] From the above, it can be concluded that the present disclosure can timely perceive the abnormal change of the downhole environment by monitoring the temperature signal and the gas concentration signal by the module 101, and rapidly feedback to the control module 102 when the temperature rises or the concentration of harmful gas exceeds the standard, so as to ensure the safety of downhole operation. The DC / DC isolation power supply module 107 stabilizes the power supply voltage, and at the same time, the isolation function effectively prevents power supply interference, thereby improving the reliability and safety of the present disclosure. Especially in the mine with complex electromagnetic environment, the device failure caused by power supply fluctuation can be avoided. The electromagnetic detection module 108 monitors the electromagnetic interference in real time, so that the present disclosure can flexibly cope with the interference situation and ensure the communication quality. The first switch module 103 and the second switch module 104 are controlled by the control module 102 to accurately control the working state of the communication module 105 and the signal enhancement module 106, and the signal enhancement module 106 enhances the communication signal when needed, so as to ensure the stability and continuity of communication in the complex downhole environment, effectively avoid signal interruption or loss, and improve the practicability and adaptability of the entire communication substation, thereby providing a powerful guarantee for the safe production of mines. Therefore, the present disclosure can solve the problems of poor data transmission stability and high energy consumption.

[0058] In one embodiment of the present disclosure, referring to Figure 2 The signal enhancement module 106 comprises a MOS tube Q7, a capacitor C13, a resistor R62, a resistor R63, a resistor R64 and an amplifier U1A.

[0059] The gate of the MOS tube Q7 is connected to the output end of the second switch module 104, the drain of the MOS tube Q7 is connected to the output end of the DC / DC isolation power supply module 107 through the resistor R62, and the source of the MOS tube Q7 is grounded.

[0060] The first end of the resistor R64 is connected to the drain of the MOS tube Q7, the second end of the resistor R64 is connected to the non-inverting input end of the amplifier U1A, the non-inverting input end of the amplifier U1A is grounded, the output end of the amplifier U1A is feedback connected to the non-inverting input end of the amplifier U1A through the resistor R63, and the capacitor C13 is connected in parallel across the resistor R63.

[0061] The output end of the amplifier U1A is connected to the communication module 105.

[0062] In the embodiment, the MOS tube Q7 has high input impedance and low noise characteristics, which can effectively improve the input impedance of the signal enhancement module 106 and improve the signal-to-noise ratio of the signal.

[0063] The resistor R62 provides a suitable bias voltage for the MOS tube Q7 on the one hand, and ensures that the MOS tube works in a suitable amplification region. On the other hand, when the MOS tube Q7 is turned on, the resistor R62 acts as a load resistor to convert the current change of the MOS tube Q7 into a voltage change, thereby realizing signal amplification.

[0064] The amplifier U1A is an operational amplifier and constitutes an inverting proportional amplification circuit. The inverting input terminal of the amplifier U1A receives a signal attenuated by the resistor R64, and the output terminal is connected to the inverting input terminal through the resistor R63, forming a negative feedback amplification circuit. The capacitor C13 is connected in parallel across the resistor R63, which is used to stabilize the working frequency characteristics of the amplifier, reduce the influence of high-frequency noise, and improve the stability of the amplifier and the accuracy of signal amplification. In the embodiment, the amplifier U1A can further amplify the input signal through the above circuit structure, and the amplification factor is determined by the ratio of the resistors R63 and R64, thereby significantly enhancing the strength of the communication signal to meet the requirements of long-distance transmission in the complex environment of the mine.

[0065] The resistor R63 acts as a feedback resistor of the amplifier U1A and determines the amplification factor of the amplifier together with the resistor R64. By adjusting the resistance value, the amplification degree of the signal can be accurately controlled, so that the output signal can reach a suitable strength to meet the requirements of the communication module 105 for signal strength, ensure that the signal can be reliably transmitted in the underground environment, and reduce the influence of signal attenuation and distortion on the communication quality.

[0066] From the above, it can be seen that the signal enhancement module 106 combines the MOS tube Q7 and the inverting proportional amplification circuit to effectively amplify and optimize the communication signal, thereby improving the quality and strength of the communication signal and enhancing the communication capability of the mine-used intrinsically safe communication substation in the complex mine environment.

[0067] In one embodiment of the present disclosure, with reference to Figure 2 A mine-used intrinsically safe communication substation further comprises a temperature comparator 109, a gas concentration comparator 110, a temperature detection module 111, and a gas detection module 112.

[0068] The temperature detection module 111 is connected to the non-inverting input terminal of the temperature comparator 109.

[0069] The inverting input terminal of the temperature comparator 109 is used to receive a temperature reference value Vref2, and the output terminal of the temperature comparator 109 is connected to the first input terminal of the OR module 101.

[0070] The gas detection module 112 is connected to the non-inverting input terminal of the gas concentration comparator 110.

[0071] The inverting input terminal of the gas concentration comparator 110 is connected to receive a gas concentration reference value Vref1, and the output terminal of the gas concentration comparator 110 is connected to the second input terminal of the OR module 101.

[0072] In the embodiment, the temperature detection module 111 is configured to detect the temperature of the environment under the mine in real time and transmit the detected temperature signal in the form of an electric signal to the non-inverting input terminal of the temperature comparator 109. The temperature detection module 111 can be a temperature sensor. The temperature comparator 109 is configured to compare the actual temperature signal transmitted by the temperature detection module 111 with a pre-set temperature reference value Vref2. The temperature reference value Vref2 connected to the inverting input terminal is a fixed voltage value corresponding to a specific safety temperature limit, for example, a voltage value corresponding to 40℃. When the temperature represented by the signal transmitted by the temperature detection module 111 is higher than the reference value, the output terminal of the temperature comparator 109 generates an effective signal (such as a high level), which is transmitted to the first input terminal of the OR module 101.

[0073] The gas detection module 112 is configured to detect the concentration of a specific gas (such as gas, carbon monoxide, etc.) under the mine and convert the detected gas concentration signal into an electric signal transmitted to the non-inverting input terminal of the gas concentration comparator 110. The gas detection module 112 can be a gas sensor. The gas concentration comparator 110 is configured to compare the actual gas concentration signal output by the gas detection module 112 with a pre-set gas concentration reference value Vref1. The gas concentration reference value Vref1 connected to the inverting input terminal is also a fixed voltage value corresponding to a dangerous gas concentration limit, for example, a voltage value corresponding to a gas concentration of 1%.

[0074] The OR module 101 receives the output signals from the temperature comparator 109 and the gas concentration comparator 110. As long as any one of the two input signals becomes a high level signal, the output terminal of the OR module 101 will generate a “1” signal, which will be transmitted to the subsequent control module 102.

[0075] As can be seen from the above, the temperature detection module 111 and the temperature comparator 109 work together to detect the temperature condition under the mine, and the gas detection module 112 and the gas comparator work together to detect the harmful gas concentration condition under the mine. The embodiment realizes rapid early warning of danger, so that the personnel on the surface can know immediately, and builds a strong defense for the safety of underground operation and reduces the hidden danger of accidents.

[0076] In an embodiment of the present disclosure, the reference Figure 2The intrinsically safe communication substation for mine further comprises a heat dissipation module 113.

[0077] The heat dissipation module 113 is connected with the output end of the temperature comparator 109.

[0078] In the embodiment, the temperature comparator 109 is configured to control the start and stop of the heat dissipation module 113. The heat dissipation module 113 can directly receive the instruction from the temperature comparator 109. Once the temperature comparator 109 determines that the current temperature is too high, the signal output by the temperature comparator 109 will start the heat dissipation module 113. The heat dissipation module 113 can adopt various heat dissipation modes, such as air cooling by a fan.

[0079] From the above, it can be concluded that when the temperature comparator 109 detects that the temperature exceeds the safety threshold due to the underground environment or equipment operation, the heat dissipation module 113 will be triggered to work immediately. The heat dissipation module 113 can efficiently dissipate heat, maintain the appropriate temperature inside the communication substation, ensure the stable performance of electronic components, reduce the failure rate, reduce the signal transmission interruption caused by overheating, provide protection for continuous and reliable underground communication operation, and improve the overall production safety.

[0080] In an embodiment of the present disclosure, referring to Figure 2 The intrinsically safe communication substation for mine further comprises a humidity detection module 115 and a humidity comparator 114.

[0081] The humidity detection module 115 is connected with the same-phase input end of the humidity comparator 114.

[0082] The opposite-phase input end of the humidity comparator 114 is used to receive a humidity reference value Vref3, and the output end of the humidity comparator 114 is connected with the control module 102.

[0083] In an embodiment of the present disclosure, referring to Figure 2 The intrinsically safe communication substation for mine further comprises a dehumidification module 116.

[0084] The dehumidification module 116 is connected with the output end of the humidity comparator 114.

[0085] In the embodiment, the humidity detection module 115 is configured to detect the air humidity condition in the mine in real time and convert the humidity information into an electrical signal. The humidity detection module 115 can be a humidity sensor. The humidity comparator 114 is configured to compare the actual humidity signal from the humidity detection module 115 with the preset humidity reference value Vref3 and output a corresponding signal according to the comparison result. The humidity reference value Vref3 connected to the inverting input terminal is set according to the upper limit of humidity that can be tolerated by the communication substation in normal operation. For example, if the humidity comparator 114 receives a humidity signal of 80% RH from the humidity detection module 115, which is higher than the preset reference value of 70% RH, the output terminal will output a high-level signal. The control module 102 receives the output signal of the humidity comparator 114 and can control the on-off of the first switch module 103 according to the signal.

[0086] The dehumidification module 116 receives the output signal of the humidity comparator 114 and starts working when the humidity comparator 114 determines that the humidity exceeds the standard, to perform dehumidification on the air inside or around the communication substation, reduce the air humidity, and protect the electronic components and communication lines. The dehumidification module 116 can use the condensation dehumidification method.

[0087] As can be seen from the above, the humidity detection module 115 can accurately detect the dynamic humidity in the mine and convert it into an electrical signal in real time and transmit it to the humidity comparator 114. The humidity comparator 114 compares the measured humidity with the preset humidity reference value Vref3, which not only controls the dehumidification of the dehumidification module 116, but also allows the control module 102 to control the first switch module 103 to be closed, to communicate with the terminal through the communication module 105. The embodiment can quickly reduce the humidity and prevent the components from being short-circuited and corroded due to moisture.

[0088] In one embodiment of the present disclosure, the communication module 105 includes a plurality of communication units and a plurality of communication unit interfaces. Figure 2

[0089] In the embodiment, the communication units are configured for data transmission, each communication unit is used for independent signal processing and transmission, and can work according to different communication protocols and frequencies. The communication units can be wireless communication units and wired communication units. The wireless communication units can include Wi-Fi units, ZigBee units, Bluetooth units and 4G / 5G units, and the wired communication units can include RS-485 units and Ethernet units. The plurality of communication unit interfaces can adapt to different connection requirements. The communication unit interfaces can include wireless communication unit interfaces and wired communication unit interfaces.

[0090] ​From the above, it can be concluded that through the combination of multiple communication units and corresponding communication unit interfaces, the communication module 105 can flexibly adapt to the complex and changeable communication environment and diversified equipment connection requirements in the mine, ensure reliable transmission and efficient interaction of information, and provide a strong guarantee for the stable operation of the entire mine intrinsically safe communication substation.

[0091] In an embodiment of the present disclosure, with reference to Figure 2 , a mine intrinsically safe communication substation further comprises an alarm module 117;

[0092] The alarm module 117 is connected to the control module 102.

[0093] In this embodiment, the alarm module 117 is configured to issue intuitive and obvious alarm signals under the instruction of the control module 102, to remind the underground workers of potential dangerous situations, and also to transmit alarm information to the monitoring center above the well, so that the personnel above the well can take further measures in time, such as organizing rescue, adjusting ventilation, etc. The alarm signal can take various forms, such as audible and visual alarm, vibration alarm, etc., to ensure that it can attract enough attention of the personnel in the complex underground environment.

[0094] When the control module 102 judges that the underground environment or equipment operation has an abnormal situation, it will send a trigger signal to the alarm module 117. After receiving the signal, the alarm module 117 immediately starts the corresponding alarm mechanism. For example, if the temperature is too high or the concentration of harmful gas exceeds the standard, the alarm module 117 can simultaneously start the audible and visual alarm function, and issue a loud alarm sound and flashing warning light, so that the underground personnel can quickly realize the existence of danger and take measures such as evacuation and equipment inspection in time.

[0095] From the above, it can be concluded that the alarm module 117 can make the operating personnel realize the danger at the first time, react quickly, and strive for valuable risk avoidance or disposal time. The monitoring center above the well synchronously receives the alarm, which is conducive to overall scheduling and greatly improves the efficiency of mine emergency response.

[0096] The above embodiments are only used to illustrate the technical solutions of the present disclosure, but not to limit them; although the present disclosure has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features; 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 disclosure.

Claims

1. A mine intrinsically safe communication substation, characterized in that The or module includes: or module, control module, first switch module, second switch module, communication module, signal enhancement module, DC / DC isolation power module and electromagnetic detection module; The first input end of the or module is used for receiving a temperature signal; The second input end of the or module is used for receiving a gas concentration signal; The output end of the or module and the electromagnetic detection module are connected with the control module; The first end of the first switch module is connected with the control module, the second end of the first switch module is connected with the communication module, and the control end of the first switch module is connected with the control module; The first end of the second switch module is connected with the control module, the second end of the second switch module is connected with the signal enhancement module, and the control end of the second switch module is connected with the control module; The signal enhancement module is connected with the DC / DC isolation power module and the communication module respectively; The DC / DC isolation power module is configured to stabilize the power voltage.

2. The mine intrinsically safe communication substation of claim 1, wherein, The signal enhancement module includes MOS tube Q7, capacitor C13, resistor R62, resistor R63, resistor R64 and amplifier U1A; The gate of the MOS tube Q7 is connected with the output end of the second switch module, the drain of the MOS tube Q7 is connected with the output end of the DC / DC isolation power module through the resistor R62, and the source of the MOS tube Q7 is grounded; The first end of the resistor R64 is connected with the drain of the MOS tube Q7, the second end of the resistor R64 is connected with the inverting input end of the amplifier U1A, the non-inverting input end of the amplifier U1A is grounded, the output end of the amplifier U1A is feedback connected to the inverting input end of the amplifier U1A through the resistor R63, and the capacitor C13 is connected in parallel across the resistor R63; The output end of the amplifier U1A is connected with the communication module.

3. The intrinsically safe communication substation for mine use according to claim 1, characterized in that, Further comprising a temperature comparator, a gas concentration comparator, a temperature detection module and a gas detection module; The temperature detection module is connected with the non-inverting input end of the temperature comparator; The inverting input end of the temperature comparator is used for receiving a temperature reference value Vref2, and the output end of the temperature comparator is connected with the first input end of the or module; The gas detection module is connected with the non-inverting input end of the gas concentration comparator; The inverting input end of the gas concentration comparator is used for receiving a gas concentration reference value Vref1, and the output end of the gas concentration comparator is connected with the second input end of the or module.

4. A mine communication station of claim 3, characterized in that, Further comprising a heat dissipation module; The heat dissipation module is connected with the output end of the temperature comparator.

5. The intrinsically safe communication substation for a mine as claimed in claim 1, characterized in that, Further comprising a humidity detection module and a humidity comparator; The humidity detection module is connected with the non-inverting input end of the humidity comparator; The inverting input end of the humidity comparator is used for receiving a humidity reference value Vref3, and the output end of the humidity comparator is connected with the control module.

6. A mine personal safety communication substation as claimed in claim 5 wherein, Further comprising a dehumidification module; The dehumidification module is connected with the output end of the humidity comparator.

7. The mine personal safety communication substation of claim 1 wherein, The communication module includes a plurality of communication units and a plurality of communication unit interfaces.

8. The intrinsically safe communication substation for a mine as claimed in claim 1, characterized in that, Further comprising an alarm module; The alarm module is connected with the control module.

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