CN115278574A - Mining explosion-proof and intrinsic safety signal controller - Google Patents

Mining explosion-proof and intrinsic safety signal controller Download PDF

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Publication number
CN115278574A
CN115278574A CN202210980712.9A CN202210980712A CN115278574A CN 115278574 A CN115278574 A CN 115278574A CN 202210980712 A CN202210980712 A CN 202210980712A CN 115278574 A CN115278574 A CN 115278574A
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CN
China
Prior art keywords
pin
resistor
chip
capacitor
grounded
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CN202210980712.9A
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Chinese (zh)
Inventor
刘广坛
郑付亮
安继伟
刘远振
刘鸣放
裴志强
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Henan Zhongfei Photoelectric Technology Co ltd
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Henan Zhongfei Photoelectric Technology Co ltd
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Priority to CN202210980712.9A priority Critical patent/CN115278574A/en
Publication of CN115278574A publication Critical patent/CN115278574A/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/30—Services specially adapted for particular environments, situations or purposes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/40—Circuits
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M11/00—Telephonic communication systems specially adapted for combination with other electrical systems
    • H04M11/06—Simultaneous speech and data transmission, e.g. telegraphic transmission over the same conductors
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/10—Small scale networks; Flat hierarchical networks
    • H04W84/12—WLAN [Wireless Local Area Networks]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices
    • H04W88/04—Terminal devices adapted for relaying to or from another terminal or user
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices
    • H04W88/06—Terminal devices adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Emergency Protection Circuit Devices (AREA)

Abstract

A mining explosion-proof and intrinsic safety signal controller is characterized in that a shell is divided into an explosion-proof cavity and an intrinsic safety cavity through a partition plate, a power panel is arranged in the explosion-proof cavity, a control main board, a loudspeaker, a display screen, an indicator light and a microphone are arranged in the intrinsic safety cavity, the control main board is connected with the power panel, a first cable leading-in device is arranged outside the shell at the explosion-proof cavity, a second cable leading-in device, a through hole, an operating button, an indicator light hole, a microphone hole, an antenna interface terminal and a loudspeaker hole are arranged outside the shell at the intrinsic safety cavity, and the operating button, the indicator light, the microphone and an antenna are connected with the control main board respectively; the mine signal communication and the automatic and intelligent control of the electromechanical equipment can be realized by utilizing the relay routing function of the self without wiring and installing a base station. Besides intelligent control, the intelligent control system has the functions of sound and light signals and voice prompt talkback, and the sound is clear and bright, so that the intelligent control system is an ideal updating product in the existing underground sound and light signal communication device of the coal mine and has huge social and economic benefits.

Description

Mining explosion-proof and intrinsic safety signal controller
Technical Field
The invention relates to a mining signal communication device, in particular to a mining explosion-proof and intrinsic safety signal controller.
Background
In the existing coal mine communication technology, the main forms of communication are wired carrier communication, leakage communication, induction communication, 4G and 5G network communication and the like; due to the structural deficiency, these devices have many disadvantages in application, such as: the anti-interference performance is poor, the system cost is high, signals in a coverage area are weak, data signal transmission is delayed, and the sensitivity and reliability of data receiving and transmitting are poor, so that mine communication and an automation controller have frequent faults, light persons cause equipment damage, shutdown and production halt, heavy persons cause serious and extra-large safety accidents such as casualties and serious threats to the safety production of a coal mine. Therefore, the research and development of a mine signal communication and controller with good mobility (wireless), high sensitivity, safety and reliability becomes a technical problem which is urgently needed to be solved at present.
Disclosure of Invention
Aiming at the situation, in order to overcome the defects of the prior art, the invention aims to provide a mining flameproof and intrinsically safe signal controller which can effectively solve the problems of poor anti-interference capability, high maintenance cost, weak signals, delay of transmitted data signals, poor sensitivity and reliability and the like of the conventional signal communication equipment.
In order to achieve the purpose, the invention adopts the technical scheme that the mining explosion-proof and intrinsic safety signal controller comprises a shell, a power panel, a microphone, a loudspeaker and a control main board, wherein a handle is arranged at the upper part of the shell, the shell is divided into an explosion-proof cavity and an intrinsic safety cavity through a partition plate, the power panel is arranged in the explosion-proof cavity, the control main board, the loudspeaker, a display screen, an indicator lamp and the microphone which are connected with the control main board are arranged in the intrinsic safety cavity, the control main board is connected with the power panel through an explosion-proof type wiring terminal arranged on the partition plate, a plurality of first cable leading-in devices connected with the power panel are arranged outside the shell at the explosion-proof cavity, the second cable lead-in device, a through hole corresponding to the display screen, an operating button, an indicating lamp hole corresponding to the indicating lamp, a microphone hole corresponding to the microphone, an antenna interface terminal and a loudspeaker hole corresponding to the loudspeaker are arranged outside the shell of the intrinsic safety cavity, the antenna is arranged on the antenna interface terminal, and the operating button, the indicating lamp, the microphone and the antenna are respectively connected with the control mainboard to realize functions of dotting, acousto-optic signals and signal instructions, voice broadcasting, talkback, display screen display, designated number information signal lamp conversion control, voice warning and equipment control;
the control mainboard is provided with a control circuit, the pin 5 and the pin 6 of the control chip U10 are respectively connected with the pin 2 and the pin 1 of the crystal oscillator Y1 and respectively connected with one end of a capacitor C28 and one end of a capacitor C29, and the other common end of the capacitor C28 and the other common end of the capacitor C29 are grounded; the pin 7 of the control chip U10 is respectively connected with a resistor R18 connected with VDD3.3V, a diode D14 and a grounding capacitor C27; pins 16 and 17 of a control chip U10 are respectively connected with pins 4 and 5 of a wireless module U2, pins 23, 24 and 25 of the control chip U10 are respectively connected with pins 3, 4 and 5 of a chip P10, pin 26 of the control chip U10 is connected with pin 2 of an optical coupler U8, pin 29 and pin 30 of the control chip U10 are respectively connected with pin 8 and pin 9 of a SIM network communication module U29, pin 34 of the control chip U10 is connected with pin 4 of the optical coupler U13, pin 35 of the control chip U10 is connected with pin 4 of the optical coupler U15, pin 37 of the control chip U10 is connected with pin 2 of the optical coupler U12, pins 38, 40, 39, 51, 52 and 50 of the control chip U10 are respectively connected with a grounded resistor R47, a resistor R10, a resistor R11, a resistor R12, a resistor R13 and a resistor R15, the resistor R11, the resistor R12, the resistor R13, the resistor R15 and the pins 39, 51, 52 and 50 of the control chip U10 are respectively connected with the button SW4, the button SW3, the button SW2 and the button SW1, so that functions of dotting, emergency stop, unlocking and voice talkback are realized, the pins 42, 43, 44 and 45 of the control chip U10 are respectively connected with the pins 4, 5, 6 and 17 of the display module U6, the pins 46, 47, 48 and 49 of the control chip U10 are respectively connected with the pins 1, 2, 3 and 4 of the chip P3, the pin 53 of the control chip U10 is connected with the pin 1 of the voice power amplification chip U3, the pins 54 and 55 of the control chip U10 are respectively connected with the pins 2 and 3 of the voice chip U4, the pin 57 of the control chip U10 is connected with the pin 2 of the opto-coupler U8, and the pin 60 of the control chip U10 is grounded through the resistor R14; the power supply of DC12V is converted into sysDC9V through a three-terminal regulator U5 to supply power to the carrier circuit, and the power supply is output by a regulator U9 to VCC3.3V to supply power to a control chip U10; a pin 1 of the display module U6 is respectively connected with a pin 5 of the display module U6, a pin 44 of the control chip U10 and a pin 18 of the display module U6 through a variable resistor RT1, a pin 2 of the display module U6 is connected with a three-terminal regulator U1 to input DC12V, pins 15 and 20 of the display module U6 are grounded, and a pin 19 of the display module U6 is connected with a VCC5V power supply; in the signal data transmission between the mining signal controllers, two communication technologies of wireless local area network communication and carrier communication are applied, two paths of signals simultaneously receive and transmit the same signal command, and advantage complementation is formed, so that the communication and the data transmission are more timely, safe and reliable; the communication of the upper and lower 4G/5G networks of the mine is realized through the SIM network communication module U29, and if the mine without 4G/5G signals does not exist, data signals are relayed and transmitted mutually and equipment is controlled to operate through a wireless local area network formed between the base unit and the extension unit of the signal controller.
The invention has simple structure and scientific and reasonable design, adopts the chip technology and the modern network technology, does not need wiring and base station installation, and can realize the automatic and intelligent control of mine signal communication and electromechanical equipment by utilizing the relay routing function of the invention. The intelligent control device has the advantages of safe, stable and reliable performance, strong anti-interference capability, clear and surging sound, multiple purposes, simple and convenient operation and maintenance, sound and light signals, and has the functions of voice prompt and talkback, besides intelligent control, and great social and economic benefits.
Drawings
FIG. 1 is a schematic diagram of the present invention.
Fig. 2 is a side sectional view (right side) of the inventive structure.
Fig. 3 is a partial schematic view of an antenna connection of the present invention.
Fig. 4 is a diagram of a power control circuit on the power strip of the present invention.
Fig. 5 is one of the control circuit diagrams on the control motherboard of the present invention.
Fig. 6 is a second control circuit diagram of the control motherboard according to the present invention.
Fig. 7 is a third control circuit diagram of the control motherboard according to the present invention.
Fig. 8 is a fourth diagram of the control circuit on the control motherboard according to the present invention.
Fig. 9 is a fifth control circuit diagram of the control motherboard according to the present invention.
Detailed Description
The following detailed description of the embodiments of the invention is provided in connection with the accompanying drawings and the detailed description.
The mining explosion-proof and intrinsic safety signal controller is provided by combining the attached drawing, and comprises a shell, a power panel, a microphone, a loudspeaker and a control main board, wherein a handle 14 is arranged at the upper part of the shell 1, the shell 1 is divided into an explosion-proof cavity 101 and an intrinsic safety cavity 102 through a partition plate 2, the power panel 3 is arranged in the explosion-proof cavity 101, the control main board 4, a loudspeaker 11, a display screen 7, an indicator lamp 9 and the microphone 10 which are connected with the control main board 4 are arranged in the intrinsic safety cavity 102, the control main board 4 is connected with the power panel 3 through an explosion-proof wiring terminal 5 arranged on the partition plate 2, a plurality of first cable lead-in devices 6 connected with the power panel 3 are arranged outside the shell 1 at the explosion-proof cavity 101, a second cable lead-in device 601, a through hole 13 corresponding to the display screen 7, an operation button 8, an indicator lamp hole corresponding to the indicator lamp 9, a microphone hole corresponding to the microphone 10, an antenna interface terminal and a loudspeaker hole 1201 corresponding to the loudspeaker 11 are arranged outside the shell 1 at the intrinsic safety cavity 102, an antenna interface terminal is provided with an antenna 12, the antenna 8, the operation button 9, the microphone, the indicator lamp is connected with a warning lamp, the speaker control main board 4, a voice display device, a voice control device and a voice display device for realizing a voice control point, a voice display device for displaying and a voice broadcasting function for displaying a voice, a voice and a voice control point, a voice control device for displaying function for displaying a voice, a voice and a voice control point, a voice broadcasting function for displaying a voice;
the control main board 4 is provided with a control circuit, the pin 5 and the pin 6 of the control chip U10 are respectively connected with the pin 2 and the pin 1 of the crystal oscillator Y1 and respectively connected with one end of a capacitor C28 and one end of a capacitor C29, and the other common end of the capacitor C28 and the other common end of the capacitor C29 are grounded; the pin 7 of the control chip U10 is respectively connected with a resistor R18 connected with VDD3.3V, a diode D14 and a grounding capacitor C27; pins 16 and 17 of a control chip U10 are respectively connected with pins 4 and 5 of a wireless module U2, pins 23, 24 and 25 of the control chip U10 are respectively connected with pins 3, 4 and 5 of a chip P10, pin 26 of the control chip U10 is connected with pin 2 of an optical coupler U8, pins 29 and 30 of the control chip U10 are respectively connected with pin 8 and pin 9 of a SIM network communication module U29, pin 34 of the control chip U10 is connected with pin 4 of an optical coupler U13, pin 35 of the control chip U10 is connected with pin 4 of an optical coupler U15, pin 37 of the control chip U10 is connected with pin 2 of an optical coupler U12, pins 38, 40, 39, 51, 52 and 50 of the control chip U10 are respectively connected with a grounded resistor R47, a resistor R10, a resistor R11, a resistor R12, a resistor R13 and a resistor R15, the resistor R11, the resistor R12, the resistor R13 and the resistor R15 are respectively connected with the pins 39, 51, 52 and 50 of the control chip U10 through the button SW4, the button SW3, the button SW2 and the button SW1 (namely the operation button 8), so that functions of dotting, emergency stop, unlocking and voice talkback are realized, the pins 42, 43, 44 and 45 of the control chip U10 are respectively connected with the pins 4, 5, 6 and 17 of the display module U6 (namely the display screen 7), the pins 46, 47, 48 and 49 of the control chip U10 are respectively connected with the pins 1, 2, 3 and 4 of the chip P3, the pin 53 of the control chip U10 is connected with the pin 1 of the voice power amplification chip U3, the pins 54 and 55 of the control chip U10 are respectively connected with the pins 2 and 3 of the voice chip U4, the pin 57 of the control chip U10 is connected with the pin 2 of the optical coupler U8, and the pin 60 of the control chip U10 is grounded through the resistor R14; a DC12V power supply is converted into sysDC9V through a three-terminal regulator U5 to supply power to a carrier circuit, and VCC3.3V is output through a regulator U9 to supply power to a control chip U10 (a pin 1 of the three-terminal regulator U5 is connected with the DC12V power supply, a pin 1 of the three-terminal regulator U5 and the DC12V power supply are respectively connected with one ends of a capacitor C11 and a capacitor C12, the other ends of the capacitor C11 and the capacitor C12 are grounded with a common end of a pin 2 of the three-terminal regulator U5, a pin 3 of the three-terminal regulator U5 is connected with one end of a diode D40, the other end of the diode D40 is connected with a pin 1 of the regulator U9, the pin 3 of the regulator U9 and the pin 1 of the regulator U9 are respectively connected with one ends of a power sysDC9V, a capacitor C16 and a capacitor C18, the pin 3 of the regulator U9 is connected with a power interface VCC3.3V of the control chip U10, the pin 3 of the regulator U9 and a VCC3.3V power interface of the control chip U10 are respectively connected with one end of a capacitor C17 and a capacitor C15; pin 1 of the display module U6 is connected to pin 5 of the display module U6, pin 44 of the control chip U10, and pin 18 of the display module U6 through a variable resistor RT1, pin 2 of the display module U6 is connected to the three-terminal regulator U1 to input DC12V (pin 2 of the display module U6 is connected to pin 3 of the three-terminal regulator U1 through a diode D4, a pin 1 of the three-terminal regulator U1 is connected with a DC12V power supply, a pin 1 of the three-terminal regulator U1 and the DC12V power supply are respectively connected with one end of a capacitor C2 and one end of a capacitor C1, the other ends of the capacitor C2 and the capacitor C1 are grounded with the common end of a pin 4 of the three-terminal regulator U1), a pin 15 and a pin 20 of the display module U6 are grounded, and a pin 19 of the display module U6 is connected with a VCC5V power supply; in the signal data transmission among the mining signal controllers, two communication technologies of wireless local area network communication and carrier communication are applied, two paths of signals simultaneously receive and transmit the same signal instruction, and advantage complementation is formed, so that the communication and the data transmission are more timely, safe and reliable; the communication of the upper and lower 4G/5G networks of the mine is realized through the SIM network communication module U29, and if the mine without 4G/5G signals does not exist, data signals are relayed and transmitted mutually and equipment is controlled to operate through a wireless local area network formed between the base unit and the extension unit of the signal controller.
In order to ensure better implementation effect, as shown in fig. 1-4, the first cable leading-in device 6 is provided with 4, one of the cable leading-in devices is connected with an external AC127V power supply, the other three cable leading-in devices are used for automatic control, the power panel 3 is provided with a power control circuit, the power control circuit is composed of a first transformer T1, a voltage stabilizing circuit, a relay control circuit and plug-in type connecting terminals P7, P6 and P5, the connecting terminal P1 is connected with the AC127V power supply through one of the cable leading-in devices, a pin 1 of the connecting terminal P1 is connected with a pin 1 of the connecting terminal P4 through a capacitor C7 and a capacitor C9, a pin 1 and a pin 2 of the connecting terminal P4 are connected with an H end and a G end of the AC127V through a capacitor C7, a capacitor C81, a capacitor C91 and a capacitor C101 and are communicated with the transformer T1 on the control main board 4 to form a carrier signal communication loop, the primary coil of a first transformer T1 is connected with AC127V, a middle tap is connected with AC36V, two secondary coils are respectively 15V, two output ends of a secondary coil 4 are connected with a second rectification voltage stabilizing circuit, the second rectification voltage stabilizing circuit comprises a first layer overvoltage and overcurrent protection circuit and a second layer overvoltage and overcurrent protection circuit, a power supply +12-2V is output through the second layer overvoltage and overcurrent protection circuit to generate a stable and reliable intrinsic safety circuit with double overvoltage and overcurrent protection, the power supply is connected with a wiring terminal P10 through a wiring terminal P4 through an explosion-proof wiring terminal 5 to supply power to a control mainboard 4, two output ends of the secondary coil 5 are connected with the first rectification voltage stabilizing circuit, and the power supply with +12V is output through the first rectification voltage stabilizing circuit to supply power to a relay K1, a relay K2 and a relay K3 control circuit; a pin 1 of a primary coil of a first transformer T1 is connected with a pin 1 of a wiring terminal P1 through a fuse FU1, a pin 2 of the primary coil of the first transformer T1 is connected with a pin 3 of the wiring terminal P3, a pin 3 of the primary coil of the first transformer T1 is connected with a pin 1 of the wiring terminal P3, a pin 2 of the wiring terminal P3 is connected with a pin 2 of the wiring terminal P1, a pin 3 of the wiring terminal P1 is connected with a pin 2 of the wiring terminal P4 through a capacitor C81 and a capacitor C101 which are connected in series, a pin 1 of the wiring terminal P1 is connected with a pin 1 of the wiring terminal P4 through a capacitor C7 and a capacitor C91 which are connected in series, a pin 3, a pin 4 and a pin 5 of the wiring terminal P4 are connected with a control circuit of a relay K1, a relay K2 and a relay K3, the relay K1 and the relay K3 respectively connected with a plug-in-plug type wiring terminal P7, a plug-type wiring terminal P6 and a plug-type wiring terminal P5, a pin 7 of the wiring terminal P4 is connected with a power supply +12-2; the number of secondary coils of the first transformer T1 is 2, the secondary coil 5 supplies power to circuits of the relay K1, the relay K2 and the relay K3 through a voltage stabilizing circuit, the secondary coil 4 is rectified through a rectifier bridge D1 and filtered by a polar capacitor C1, and a first-layer overvoltage and overcurrent protection circuit is formed by a chip U1A, a voltage stabilizing diode D2, a voltage stabilizing diode D3, a voltage stabilizing diode D4, a triode Q101, a triode Q31, a triode Q41, a potentiometer R10, a resistor R1, a resistor R2, a resistor R301, a resistor R4, a resistor R501, a resistor R601, a resistor R72, a resistor R82, a resistor R99 and a resistor R111; and the +12.0v output by the collector of the triode Q101 is transmitted to a second layer overvoltage and overcurrent protection circuit consisting of a chip U2B, and a stable and reliable dual overvoltage and overcurrent protection intrinsic safety circuit is generated through filtering by a polar capacitor C6 to supply power to the control mainboard 4 of the intrinsic safety cavity.
A secondary coil 4 of the first transformer T1 is connected with a pin 1 and a pin 3 of a rectifier D1, a pin 4 of the rectifier D1 is connected with a pin 1V-, a pin 2 of the rectifier D1 is connected with an emitting electrode of a triode Q101, a collector electrode of the triode Q101 is connected with an emitting electrode of a triode Q61, a collector electrode of the triode Q61 is connected with one end of a resistor R351, a common end D of the collector electrode of the triode Q61 and the resistor R351 is connected with a pin 6 of a connecting terminal P4, and the other end of the resistor R351 is connected with a grounded light emitting diode D13; the first layer of overvoltage and overcurrent protection circuit is that the base electrode of a triode Q101 is connected with the collector electrode of a triode Q21 through a resistor R2, the emitter electrode of the triode Q21 is connected with a voltage stabilizing diode D3, the other end of the voltage stabilizing diode D3 is grounded, the base electrode of the triode Q21 is connected with the collector electrode of a triode Q31 through a resistor R4 and the common end B of a polar capacitor C2, the emitter electrode of the triode Q31 is connected with a grounded voltage stabilizing diode D4, the base electrode of the triode Q31 is connected with the pin 1 of a potentiometer R10, the pin 3 of the potentiometer R10 is grounded, the pin 2 of the potentiometer R10 is connected with one end of a resistor R111, the other end of the resistor R111 is connected with the common end of a resistor R301 and a resistor R501 +12-1, the other end of the resistor R301 is connected with the positive electrode of the polar capacitor C2 through a resistor R4, the negative electrode of the polar capacitor C2 is grounded, the other end of the resistor R501 is connected with one end of a resistor R72 through a resistor R601, the other end of the resistor R72 and the common end of the cathode of the polar capacitor C301 are respectively connected with a resistor R82 and a power supply 1V-, a pin 2 of the chip U1A is respectively connected with the anode of the polar capacitor C301 and one end of the resistor R99, the other end of the resistor R99 is connected with the common end of the resistor R82 and a resistor R19, the other end of the resistor R82 is connected with a power supply 1V-, a pin 3 of the chip U1A is connected with the common end of a resistor R501 and a resistor R601, a pin 4 of the chip U1A is connected with the 1V-, a pin 1 of the chip U1A is connected with a resistor R4 and a common end A of the polar capacitor C2, an emitter of the triode Q41 and an pin 8 of the chip U1A are connected with the common end of 1V + through the common end of the resistor R301 and the resistor R4, a base electrode of the triode Q41 is connected with the common end of the resistor R1 and a voltage stabilizing diode D2, the other end of the voltage stabilizing diode D2 is connected with the collector of the triode Q51, the negative electrode of the polar capacitor C1 is connected with 1V-; the second overvoltage and overcurrent protection circuit is characterized in that the base electrode of the triode Q51 is connected with the common end of the resistor R121 and the voltage-stabilizing diode D5, the other end of the voltage-stabilizing diode D5 is respectively connected with the resistor R82, the resistor R19 and the power supply 2V-, the other end of the resistor R121 is connected with the collector electrode of the triode Q51, and the emitter electrode of the triode Q51 is connected with the pin 8 of the chip U2B through the common end of the resistor R141 and the resistor R151 to form 2V +; the base electrode of the triode Q61 is connected with the collector electrode of the triode Q7 through the resistor R131, the emitter electrode of the triode Q7 is grounded through the voltage stabilizing diode D9, the base electrode of the triode Q7 is connected with the collector electrode of the triode Q81 through the resistor R151 and the common end C of the polar capacitor C4, the negative electrode of the polar capacitor C4 is grounded, the emitter electrode of the triode Q81 is grounded through the voltage stabilizing diode D7, the base electrode of the triode Q81 is connected with the pin 1 of the potentiometer R302, the pin 3 of the potentiometer R302 is grounded, the pin 2 of the potentiometer R10 is connected with one end of the resistor R311, the other end of the resistor R311 is connected with the common end D together with the positive electrodes of the resistor R141, the resistor R16 and the polar capacitor C6, and the negative electrode of the polar capacitor C6 is grounded; the other end of the resistor R141 is connected with the anode of the polar capacitor C4 through a resistor R151, the cathode of the polar capacitor C4 is grounded, the other end of the resistor R16 is connected with one end of a resistor R181 through a resistor R171, the other end of the resistor R181 and the common end of the cathode of the polar capacitor C501 are respectively connected with a resistor R19 and a resistor R2V-, a pin 2 of the chip U2B is respectively connected with the anode of the polar capacitor C501 and one end of a resistor R201, the other end of the resistor R201 is connected with 2V through a resistor R191, a pin 5 of the chip U2B is connected with the common end of the resistor R16 and the resistor R171, a pin 7 of the chip U2B is connected with the common end E of the polar capacitor C4, and a pin 4 of the chip U2B is connected with 2V-; the control circuit of the relay K1, the relay K2 and the relay K3 is that a pin 3, a pin 4 and a pin 5 of a connecting terminal P4 are respectively connected with the bases of a triode Q91, a triode Q10 and a triode Q11 through a resistor R231, a resistor R271 and a resistor R331, the base of the resistor R231 and the base of the triode Q91 are connected with one end of a resistor R241, the other end of the resistor R241 is grounded with the common end of the emitter of the triode Q91, the collector of the triode Q91 is respectively connected with a resistor R211, a diode D16 and a relay K1, the other end of the resistor R211 is connected with the other end of a diode D16 through a light-emitting diode D151, the common end of the light-emitting diode D151 and the diode D16 is connected with the relay K1 together to form a voltage stabilizing circuit, and the relay K1 is connected with a plug-in type connecting terminal P7; the resistor R271 is connected with one end of a resistor R281 between bases of the triode Q10, the other end of the resistor R281 is grounded with a common end of emitters of the triode Q10, a collector of the triode Q10 is respectively connected with the resistor R261, the diode D9 and the relay K2, the other end of the resistor R261 is connected with the other end of the diode D9 through the light-emitting diode D81, and a common end of the light-emitting diode D81 and the diode D9 and the relay K2 are jointly connected with a voltage stabilizing circuit; the relay K2 is connected with the plug-in wiring terminal P6; the resistor R331 is connected with one end of the resistor R341 between the base electrodes of the triode Q11, the other end of the resistor R341 is grounded with the common end of the emitter electrode of the triode Q11, the collector electrode of the triode Q11 is respectively connected with the resistor R321, the diode D10 and the relay K3, the other end of the resistor R321 is connected with the other end of the diode D11 through the light-emitting diode D10, and the common end of the light-emitting diode D10 and the diode D11 and the relay K3 are jointly connected with a voltage stabilizing circuit; the relay K3 is connected with the plug-in wiring terminal P5.
The first rectification voltage stabilizing circuit is an LM7812 type voltage stabilizing circuit (known technology), a secondary coil 5 of a first transformer T1 is respectively connected with a pin 1 and a pin 3 of a rectifier D12, a pin 2 of the rectifier D12 is respectively connected with a pin 1 of a polar capacitor C11, a capacitor C13 and a pin 1 of a three-terminal voltage stabilizing chip K5, a pin 2 of the three-terminal voltage stabilizing chip K5 is respectively connected with the polar capacitor C12 and a capacitor C14 and outputs +12V power, and a pin 4 of the rectifier D12, the capacitor C11, the capacitor C13, a pin 3 of the three-terminal voltage stabilizing chip K5, a common end of the capacitor C12 and the capacitor C14 are grounded.
As shown in fig. 6, pin 2 of the voice power amplifier chip U3 is grounded through a capacitor C10, pin 3 of the voice power amplifier chip U3 is connected to one end of a resistor R3, the other end of the resistor R3 is connected to a capacitor C74 and a capacitor C5, the other end of the capacitor C5 is connected to pin 3 of the programming control switch chip U7, the other end of the capacitor C74 is connected to pin 7 of the voice chip U4, pin 6 of the voice power amplifier chip U3 is connected to VCC5V, pins 5 and 8 of the voice power amplifier chip U3 are connected to the speaker 11, and pin 0 and pin 7 of the voice power amplifier chip U3 are grounded; a pin 1 of a voice chip U27 is connected with one end of a light-emitting diode D3, the other end of the light-emitting diode D3 is connected with VDD3.3V through a resistor R95, a pin 2 of the voice chip U27 is connected with a pin 1 of an optocoupler U13, a pin 3 of the voice chip U27 is respectively connected with a resistor R92 connected with VDD3.3VD and a grounding resistor R94, a pin 8 of the voice chip U27 is grounded, a pin 6 and a pin 5 of the voice chip U4 are respectively connected with one ends of a capacitor C73 and a capacitor C72, and the other common end of the capacitor C73 and the capacitor C72 is grounded; a pin 1 of the voice chip U4 is connected with one end of the light-emitting diode D2, the other end of the diode D2 is connected with VDD3.3V through a resistor R2, a pin 7 of the voice chip U4 is connected with a pin 13 of the programming control switch chip U7, pins 6 and 5 of the voice chip U4 are respectively connected with one ends of a capacitor C9 and a capacitor C8, and the other common end of the capacitor C9 and the capacitor C8 is grounded; pins 6, 7, 8, 9 and 11 of the programming control switch chip U7 are grounded, pin 10 of the programming control switch chip U7 is connected with pin 3 of the optocoupler U8, pin 15 of the programming control switch chip U7 is connected with pin 5 of the power amplifier chip U21, and pin 16 of the programming control switch chip U7 is connected with pin 4 of the optocoupler U8; a pin 1 of the optical coupler U8 is connected with VDD3.3V through a resistor R7, a pin 3 of the optical coupler U8 is connected with a pin 10 of a programming control switch chip U7, a grounding capacitor C14 and a grounding resistor R9, and a pin 4 of the optical coupler U8 is connected with sysDC9V; a pin 1 of the optocoupler U11 is connected with VDD3.3V through a resistor R17, a pin 3 of the optocoupler U11 is connected with one end of a resistor R19, the other end of the resistor R19 is connected with the common end of a resistor R20 and a pin 1 of the triode Q1, the common end of the resistor R20 and a pin 2 of the triode Q1 is grounded, a pin 3 of the triode Q1 is connected with one end of a light-emitting tube D8 (namely an indicator lamp 9), the other end of the light-emitting tube D8 is connected with a power supply sysDC9V through a resistor R8, and a pin 4 of the optocoupler U11 is connected with VCC3.3V.
As shown in fig. 7, pin 1 of the power amplifier chip U21 is connected to pin 8 of the power amplifier chip U21 through a polar capacitor C61, pins 2 and 4 of the power amplifier chip U21 are grounded, pin 3 of the power amplifier chip U21 is connected to a common terminal of a diode D28 and a capacitor C59, the other terminal of the diode D28 is connected to a resistor R61, the other terminal of the resistor R61 is connected to a common terminal of a resistor R60, pin 8 of the decoder chip U20 and pin 1 of an optocoupler U15, the other terminal of the resistor R60 is connected to a power sysDC9V, pin 5 of the power amplifier chip U21 is connected to pin 15 of the programming control switch chip U7 through a resistor R58, pin 6 of the power amplifier chip U21 is connected to a common terminal of pin 3 of the chip OP1, a resistor R33 and a resistor R34, the other terminal of the resistor R33 is connected to a collector of a triode Q4 and one terminal of a resistor R35, an emitter of the triode Q4 is grounded, a collector of the triode Q4 is connected to a collector of the triode Q6, the other terminal of the resistor R35 is connected to a collector of the capacitor C35, the capacitor C35 is connected to a ground, the other terminal of the capacitor C35 and a capacitor C20 is connected to a capacitor C20, and a capacitor C20 are connected to a capacitor C20; the common end of the resistor R34 and the base electrode of the triode Q4 is connected with one end of a resistor R41, the other end of the resistor R41 is respectively connected with a pin 6 of a transformer T1 and one end of a capacitor C40, a pin 1 and a pin 3 of the transformer T1 are respectively connected with a pin 4 and a pin 3 of a magnetic ring T2, a pin 4 of the transformer T1 is respectively connected with the capacitor C40, a resistor R44 and a grounded polar capacitor C42, the other end of the resistor R44 is respectively connected with a resistor R45 and one end of a resistor R50, the other end of the resistor R45 is connected with the base electrode of the triode Q6, an emitter electrode of the triode Q6 is grounded, the resistor R45 and the resistor R50 are connected with a pin 3 of a chip OP2, a pin 6 of a power amplifier chip U18 and a grounded polar capacitor C41, the other end of the resistor R50 is respectively connected with a resistor R51 and one end of a diode D27, the other end of the resistor R51 is connected with a pin 2 of the triode Q8, a pin 1 of the triode Q8 is grounded, a pin 3 of the triode Q8 is grounded, and a pin 3 of the triode Q8 is connected with a pin 3 of a chip OP3, the other end of the diode D27 is respectively connected with a pin 5 of the decoding chip U20 and one end of a resistor R54, the other end of the resistor R54 is connected with one end of a variable resistor RT2, the other end of the variable resistor RT2 is connected with a grounded capacitor C56, a pin 6 of the decoding chip U20 is connected between the variable resistor RT2 and the capacitor C56, a pin 7 of the decoding chip U20 is grounded, a pin 1 of the decoding chip U20 is connected with a grounded polar capacitor C52, a pin 4 of the decoding chip U20 is connected with one end of a resistor R47 through a grounded diode D25 and a grounded polar capacitor C44, the other end of the resistor R47 is connected with a power supply sysDC9V, a pin 2 of the decoding chip U20 is connected with a capacitor C57, a grounded capacitor C49 and a resistor R52, the other end of the capacitor C57 is respectively connected with a capacitor C59 and a grounded capacitor C60 through a resistor R66, the other end of the resistor R52 is respectively connected with a grounded resistor R56 and a resistor R53 through a capacitor C47, the other end of the resistor R53 is connected with a pin 5 of the power amplifier U18 through a capacitor C48, the pin 4 and the pin 2 of the power amplifier chip U18 are grounded, the pin 3 of the power amplifier chip U18 is respectively connected with a grounded capacitor C46, a resistor R48 and one end of the microphone 10 through a capacitor C45, and the resistor R48 is connected with the power supply sysDC9V.
As shown in fig. 9, a pin 1 of the optical coupler U13 is connected to a pin 2 of the voice chip U27 and a pin 8 of the decoding chip U19 through a resistor R26, a capacitor C30 is connected between the pin 1 and the pin 2 of the optical coupler U13, a common end of the capacitor C30 and the pin 2 of the optical coupler U13 is grounded, a capacitor C31 is connected between a pin 4 and a pin 3 of the optical coupler U13, a common end of the capacitor C31 and the pin 3 of the optical coupler U13 is grounded, a pin 4 of the optical coupler U13 is connected to one end of a resistor R27, and a pin 34 of the control chip U10 is connected between a pin 4 of the optical coupler U13 and the resistor R27; a pin 1 of the optical coupler U15 is connected with a pin 8 of the decoding chip U20 through a resistor R31, a capacitor C32 is connected between a pin 1 and a pin 2 of the optical coupler U15, the common ends of the capacitor C32 and the pin 2 of the optical coupler U15 are grounded, a capacitor C33 is connected between a pin 4 and a pin 3 of the optical coupler U15, the common ends of the capacitor C33 and the pin 3 of the optical coupler U15 are grounded, a pin 4 of the optical coupler U15 is connected with one end of the resistor R32, a pin 35 of the control chip U10 is connected between the pin 4 of the optical coupler U15 and the resistor R32, and the other common end of the resistor R32 and the resistor R27 is connected with VDD3.3V; a pin 1 of the optocoupler U12 is connected with VDD3.3V through a resistor R22, a pin 2 of the optocoupler U12 is connected with a pin 37 of a control chip U10, a grounding resistor R81 and a pin 1 of a reverse circuit U22A, a pin 2 of the reverse circuit U22A is connected with a pin 2 of a chip OP1, the pin 1 of the chip OP1 is connected with one end of a resistor R67, the other end of the resistor R67 is respectively connected with a resistor R66, a resistor R21 and a power supply VCC3.3V, the other end of the resistor R66 is connected with the pin 1 of the chip OP2, the other end of the resistor R21 is connected with a diode D15, the other end of the diode D15 is respectively connected with the pin 2 of the chip OP2 and a pin 3 of the triode Q2, the pin 1 of the triode Q2 is connected with the common end of the resistor R23 and the resistor R24, the other end of the resistor R24 is grounded with the common end of the pin 2 of the triode Q2, and the other end of the optocoupler R23 is connected with the pin 3 of the optocoupler U12; a common-end power supply sysDC9V of the 4 pins of the chip OP1 and the 4 pins of the chip OP 2; a pin 1 of the optocoupler U14 is connected with a pin VDD3.3V through a resistor R28, a pin 2 of the optocoupler U14 is connected with a pin 38 of the chip U10, a grounding resistor R80 and a pin 3 of the reverse circuit U22B, a pin 4 of the reverse circuit U22B is connected with a pin 2 of the chip OP3, a pin 1 of the chip OP3 is connected with one end of a resistor R70, the other end of the resistor R70 is respectively connected with a resistor R71, a resistor R69, a resistor R25 and a power supply VCC3.3V, the other end of the resistor R71 is connected with a pin 1 of the chip OP4, the other end of the resistor R69 is connected with a pin 1 of the chip OP5, the other end of the resistor R25 is connected with one end of a diode D17, the other end of the diode D17 is respectively connected with a pin 2 of the chip OP4, a pin 2 of the chip OP5 and a pin 3 of the triode Q3, a pin 1 of the triode Q3 is connected with a common end of the resistor R29 and a common end of the resistor R30, the common end of the resistor R30 is connected with a common end of the triode Q2; the common terminal of the 4 pins of the chip OP3 and the 4 pins of the chip OP4 is connected with the 5 pin of the transformer T1, the 3 pins of the chip OP5 are connected with the 4 pins of the transformer T1, and the 4 pins of the chip OP5 are connected with the power sysDC9V.
As shown in fig. 8, pin 1 and pin 2 of the decoding chip U19 are respectively connected to one end of a polar capacitor C53 and one end of a capacitor C51, the other common end of the polar capacitor C53 and the other end of the capacitor C51 are grounded, pin 3 of the decoding chip U19 is respectively connected to pin 3 of the decoding chip U23, a grounded capacitor C39 and a resistor R39, the other end of the resistor R39 is connected to a capacitor C38, the other end of the capacitor C38 is respectively connected to a diode D21, a diode D22 and a capacitor C37, the other ends of the diode D21 and the diode D22 are commonly grounded, the other end of the capacitor C37 is connected to one end of a resistor R40, the other end of the resistor R40 is respectively connected to a resistor R38 and a collector of a transistor Q5, an emitter of the transistor Q5 is grounded, a base of the transistor Q5 is respectively connected to a base of the transistor Q4 and a resistor R37, the other end of the resistor R37 is connected to the common end of the resistor R38, which is connected to the power sysDC9V, the 4 feet of the decoding chip U19 are respectively connected with the 4 feet of the decoding chip U23, the polar capacitor C43, the diode D26 and the resistor R46, the other end of the resistor R46 is connected with the power supply sysDC9V, the other common end of the polar capacitor C43 and the diode D26 is grounded, the 5 feet of the decoding chip U19 are connected with the 3 feet of the chip U26, the 6 feet of the decoding chip U19 are respectively connected with the grounded capacitor C58, the variable resistor RT4, the variable resistor RT5, the variable resistor RT6 and the variable resistor RT7, the other end of the variable resistor RT7 is connected with the 12 feet of the chip U26 through the resistor R91, the other ends of the variable resistor RT4, the variable resistor RT5 and the variable resistor RT6 are respectively connected with the 15 feet, the 14 feet and the 13 feet of the chip U26 through the resistor R55, the resistor R87 and the resistor R88, the 7 feet of the decoding chip U19 are grounded, the 8 feet of the decoding chip U19 are respectively connected with the resistor R59 and the 2 feet of the voice chip U4, and the other end of the resistor sDC9V 9; the common end and the 9 pin of the 6 pin, the 7 pin and the 8 pin of the chip U26 are grounded, and the 16 pin of the chip U26 is connected with a power supply sysDC9V; pin 1 and pin 2 of the decoding chip U23 are respectively connected with a grounded capacitor C63 and a grounded capacitor C65, pin 4 of the decoding chip U23 is respectively connected with a grounded diode D32, a grounded polar capacitor C62 and a resistor R62, the other end of the resistor R62 is connected with a power supply sysDC9V, pin 5 of the decoding chip U23 is connected with the resistor R63, the other end of the resistor R63 is connected with pin 6 of the decoding chip U23 and a grounded capacitor C64 through a variable resistor RT3, pin 7 of the decoding chip U23 is grounded, pin 8 of the decoding chip U23 is respectively connected with a resistor R93 and a resistor R64 connected with the power supply sysDC9V, and the other end of the resistor R93 is grounded through a light emitting diode D23; a pin 1 of the optocoupler U24 is connected with a pin VDD3.3V through a resistor R84, a pin 2 of the optocoupler U24 is connected with a pin 11 of a control chip U10, a pin 3 of the optocoupler U24 is respectively connected with a pin 10 of a capacitor C71, a resistor R86 and a programming control switch chip U25, the other common end of the capacitor C71 and the resistor R86 is grounded, and a pin 4 of the optocoupler U24 is connected with a power supply sysDC9V; a pin 1 of the optical coupler U16 is connected to VDD3.3V through a resistor R83, a pin 2 of the optical coupler U16 is connected to a pin 10 of a chip U10, a pin 3 of the optical coupler U16 is respectively connected with a capacitor C66, a resistor R85 and a pin 11 of a programming control switch chip U25, the other common end of the capacitor C66 and the resistor R85 is grounded, and a pin 4 of the optical coupler U16 is connected with a power supply sysDC9V; a pin 3 of a programming control switch chip U25 is connected with a pin 1 of a triode Q9 through a capacitor C54, a pin 3 of the triode Q9 is grounded, a pin 2 of the triode Q9 is connected with a pin 3 of a chip OP4, a pin 8 and a pin 9 of the programming control switch chip U25 are grounded, a pin 12 and a pin 13 of the programming control switch chip U25 are respectively connected with a pin 5 and a pin 7 of a counter integrated chip U28, a pin 14 and a pin 15 of the programming control switch chip U25 are respectively connected with a pin 5 and a pin 7 of a counter integrated chip U17, a pin 16 of the programming control switch chip U25 is connected with a power sysDC9V, a pin 8 and a pin 12 of the counter integrated chip U28 are grounded, a pin 10 of the counter integrated chip U28 is respectively connected with one end of a resistor R94, a pin 2 of a crystal oscillator Y2 and a grounded capacitor C76, a pin 11 of the counter integrated chip U28 is respectively connected with the other end of the resistor R94, a pin 1 of the crystal oscillator Y2 and a grounded capacitor C75, and a pin 16 of the counter integrated chip U28 is connected with a pin 4 of a transformer T1 through a resistor R97; the pin 8 and the pin 12 of the counter integrated chip U17 are grounded, the pin 10 of the counter integrated chip U17 is respectively connected with one end of a resistor R27, the pin 2 of the crystal oscillator Y3 and a grounded capacitor C50, the pin 11 of the counter integrated chip U17 is respectively connected with the other end of a resistor R57, the pin 1 of the crystal oscillator Y2 and a grounded capacitor C55, and the pin 16 of the counter integrated chip U17 is connected with the pin 4 of the transformer T1 through a resistor R96.
A glass pressing plate 15 is arranged in the intrinsic safety cavity 102 corresponding to the through hole 13, the display screen 7 is arranged on the control main board 4 through screws, and the display screen 7 is observed through the through hole 13 and the glass pressing plate 15; the antenna interface terminal 1201 is provided with a mounting hole 1206, an antenna feeder of the antenna 12 extends into the mounting hole 1206 to be connected with the antenna interface terminal 1201, the antenna 12 and the mounting hole 1206 are sequentially provided with a sealing ring 1202, a metal pad 1203 and a pressing hollow nut 1204 from inside to outside, the pressing hollow nut 1204 is rotated to press the metal pad 1203 and the sealing ring 1202 to realize sealing, an L-shaped guide clamping tube 1205 is arranged outside the pressing hollow nut 1204, and an extending end of the antenna 12 extends out of the guide clamping tube 1205.
When the mining flameproof and intrinsic safety signal controller operates a button SW2 'emergency stop' button, the mining flameproof and intrinsic safety signal controllers which are the same in the same type on the online can both send out acousto-optic signals, display the number of a machine sending an emergency stop instruction and realize the locking function of signal equipment; the mining explosion-proof and intrinsic safety signal controller with different letter codes on the connecting line only relays data signal information, and other functions do not respond; only the machine which sends the emergency stop instruction and the mining explosion-proof and intrinsic safety signal controller with the same number specified by the program design are unlocked.
The mining explosion-proof and intrinsic safety signal controller can receive and transmit data signals, wherein the relay routing function can infinitely prolong the wireless communication distance in the severe underground coal mine environment; when receiving and transmitting acousto-optic signals, acousto-optic signals are received and transmitted for several times, and the loudspeaker 11 broadcasts information receiving and transmitting instructions in a voice mode.
The chip types are respectively as follows: the model of the three-terminal voltage stabilizer U1 is L7806CV-DG, the model of the three-terminal voltage stabilizer U5 is L7809ABD2T-TR, the model of the voltage stabilizing chip U9 is AMS1117, the model of the wireless module U2 is WH-L-102-L-P, the model of the voice power amplifier chip U3 is TPA6211AIDGNR, and the models of the voice chip U4 and the voice chip U27 are WTN6; the display module U6 is JLX12864G-1509 in model, the programming control switch circuit U7, the programming control switch circuit U25 and the programming control switch circuit U26 are CD4051B in model, the optocouplers U8, the optocouplers U11, the optocouplers U13, the optocouplers U15, the optocouplers U12, the optocouplers U14, the optocouplers U24 and the optocouplers U16 are FL357N (B) (TA) -G in model, and the control chip U10 is STM32F103RBT6 in model; the counter integrated chip U17 and the counter integrated chip U28 are in a CD4060BC model, and the decoding chip U19, the decoding chip U20 and the decoding chip U23 are in an LM567 model; the models of the power amplifier chip U21 and the power amplifier chip U18 are TPA6211AIDGNR; the reverse circuits U22A and U22B are of the type 74LVT14D; the model of the SIM network communication module U29 is SIM7600; U1A, U B is the LM393 voltage comparator circuit. The above-described models are exemplary of the present invention and are not intended to be limiting, and any equivalent and equivalent models are within the scope of the present invention.
The invention, when used in particular, is illustrated by the following examples.
In implementation and application, only the explosion-proof and intrinsic safety signal controllers are arranged in an underground roadway according to needs (generally, one controller is arranged every 150 meters), data signals among the explosion-proof and intrinsic safety signal controllers are mutually relayed and routed to form a unique communication network, and the wireless communication and control distance in the underground severe environment of a coal mine can be infinitely prolonged.
Referring to fig. 1-3, the explosion-proof chamber and the intrinsic safety chamber are formed, and the two chambers are effectively isolated by a steel plate with the thickness of 16 mm. The power control mainboard is installed at the flame proof intracavity, and this ampere of signal control mainboard is installed at this ampere of intracavity, and two chambeies are connected through JD7-220 type flame proof binding post 5. The two sides of the explosion-proof cavity are provided with four cable leading-in devices 6 in total, one cable leading-in device is connected with an AC127V power supply, and the other three cable leading-in devices are used for automatic control.
The power panel in the explosion-proof cavity 101 consists of a transformer, a rectification intrinsic safety voltage stabilizing circuit, three relay (K1, K2 and K3) control circuits and plug-in wiring terminals P7, P6 and P5. The intrinsically safe cavity 102 is provided with an intrinsically safe signal control mainboard 4, and an operating button 8, a microphone 10, an indicator light 9, a loudspeaker 11 and a display screen 7 are arranged on the intrinsically safe signal control mainboard corresponding to the position of a display screen window. The device information and the signal control instructions of each device can be directly watched through the display screen window. The display 7 (Chinese character liquid crystal display) directly displays the number of the machine and the working instructions of each device at ordinary times. When setting parameters or station numbers, the equipment parameters and the station numbers can be set after the passwords are input through button operation. The external antenna 12 is connected with the signal main board through an antenna feeder line, the operating button 8, the microphone 10, the indicating lamp 9 and the loudspeaker 11 are respectively connected with the control main board 4 through connecting plugs, and the operation and maintenance are simple and convenient. The two sides of the intrinsic safety cavity are symmetrically provided with one cable lead-in device 6 respectively for an antenna and intrinsic safety control, wherein the antenna interface device is composed of an antenna interface terminal, a sealing ring, a metal ring and a pressing hollow nut, and the intrinsic safety cavity is simple in design and convenient and reliable to install.
Referring to fig. 4, the terminal P1 is connected to an AC127V power supply, a is connected to H, B is connected to L, and G is connected to a common line. The primary coil of the first transformer T1 is connected with AC127V, the middle tap can be connected with AC36V, two secondary coils are 15V respectively, and the secondary coil 4 and the connecting terminal P4 of the intrinsically safe voltage stabilizing circuit are connected with a chip P10 through a JD7-220 flameproof connecting terminal 5 to supply power to the intrinsically safe cavity signal control mainboard 4. The secondary coil 5 supplies power to the relay K1, K2, K3 circuit through an LM7812 voltage stabilization circuit (i.e., a voltage stabilization circuit composed of the rectifiers D12, K5 and the capacitors C11, C13, C12, C14 in fig. 4). Plug-in binding post P7, P6, P5 are the external control binding post of K1, K2, K3 relay respectively.
The working principle of the intrinsic safety power supply is as follows: a primary coil of a first transformer T1 is connected with AC127V or AC36V voltage, two secondary coils are respectively provided with 15V, a secondary coil 4 is rectified through an RS608L rectifier bridge D1, filtering of a polar capacitor C1 is provided, and a first layer overvoltage and overcurrent protection circuit is formed by a chip U1A, a voltage stabilizing diode D2, a voltage stabilizing diode D3 and a voltage stabilizing diode D4, triodes Q101, Q31 and Q41, a potentiometer R10, resistors R1, R2, R3, R4, R501, R601, R72, R82, R99 and a resistor R10; and the +12.0v output by the collector of the triode Q101 is transmitted to a secondary overvoltage and overcurrent protection circuit consisting of U2B, and a stable and reliable intrinsic safety circuit with double overvoltage and overcurrent protection is generated through filtering by a polar capacitor C6 to supply power to the control mainboard 4 of the intrinsic safety cavity.
Referring to fig. 5-9, the control motherboard 4 of the intrinsically safe cavity is composed of a carrier encoding circuit composed of a control chip U10, a wireless module U2, a display module U6, a counter integrated chip U17, a programming control switch chip U25, a programming control switch chip U26 and the like, an audio decoding circuit composed of a decoding chip U19, a decoding chip U20 and the like, and a carrier decoding circuit composed of a control chip U10 and the like.
In one local area, the invention can set multiple types of wireless coding signals such as A, B, C, D, E and the like through the operation button 8 on the panel, and simultaneously automatically configures the carrier coding signal with the same instruction as the wireless coding signal through a wiring terminal P10 program, and simultaneously enables the instruction to control the relay action of the power panel and the sound and light information and language broadcast of the intrinsic safety panel.
For example: the signal controller is internally provided with a letter C through a panel operation button 8, and is provided with numbers 1-n of a C class. In the local area, as long as the signal of the C-type serial number controls the sending of any command signal, the C-type can receive the signal and has an acousto-optic voice broadcasting command and a control target for controlling the corresponding command.
When the invention sends a signal, the 50-pin high level of the control chip U10 of an operation button (dotting) of the machine becomes low level, the control chip U10 judges the content of the sent information according to the dotting information and instructs the wireless module U2 to send out wireless coding information, meanwhile, the control chip U10 generates a carrier coding signal through the circuits of the optocoupler U16, the optocoupler chip U24, the carrier coding chip U25 and the counter integrated circuit chip U17, and the carrier coding signal is coupled into an AC127V power line through the power amplification of the triode Q9 and the coupling of the high-frequency transformer T1, the capacitors C7, C8, C9 and C10, and simultaneously, the process of sending out the wireless coding signal and the carrier coding signal is realized. After the signal is sent out, the signal controllers (the mining explosion-proof and intrinsic safety signal controllers) in the local area all receive the signal information command and transmit the signal information command through a route, and only the acousto-optic command with the same type of setting (same letters) is executed, the command information is broadcasted and the automatic control is realized.
The signal receiving principle is as follows: the wireless module U2 is connected with the antenna 12, and when the antenna 12 of each mining signal controller receives wireless coding information sent from the local area network, the power carrier also receives command information sent from the local area network. After the data signal received by the wireless module U2 is sent to the microprocessor of the control chip U10 for data processing, the voice circuit comprises: pins 55 and 54 of a control chip U10 control pins 2 and 3 of a voice chip U4, and a voice power amplifier circuit of a voice power amplifier chip U3 pushes a loudspeaker 11 to broadcast; secondly, the light-emitting circuit: the pin 26 of the control chip U10 changes from high level to low level to indicate that the luminescent tube D8 emits light; third, the display circuit: the pins 42, 43, 44 and 45 of the control chip U10 are respectively connected with the pins 4, 5, 6 and 17 of the display module U6; fourthly, a control circuit: the 23, 24 and 25 pins of the control chip U10 respectively control the corresponding actions of the relays K1, K2 and K3 in the power control circuit on the power panel 3, thereby achieving the purpose of controlling the operation of the electromechanical device.
Carrier coded signals are coupled with a high-frequency transformer T1 on an intrinsic safety signal control board through capacitors C7, C8, C9 and C10 coupling capacitors, amplified and sent to a decoding chip U19 to be further processed through a pin 34 and a pin 35 of a control chip U10 after primary processing, command signals and wirelessly sent coded commands are simultaneously executed after processing, and a light-emitting sound broadcasting voice command is sent out to control and execute the action of a relay.
The invention can also be connected with a 4G/5G network and is controlled by the communication of a remote terminal; pins 8 and 9 of the SIM network communication module U29 are connected with pins 29 and 30 of the control chip U10, and pins 4 and 5 of the wireless module U2 are respectively connected with pins 16 and 17 of the control chip U10, so that a signal controller and a network are communicated with each other and are automatically controlled.
Referring to fig. 4, 5 and 7, the system has the functions of talkback, sound and light signals, dotting instruction voice broadcasting, automatic signal lamp conversion and voice warning.
In the standby state, the simplex talkback and calling can be realized. When the 'talkback' button is pressed down, all signal controllers on the online can hear the talk and call, and when the 'talkback' button is released, the signal controllers are all in a call receiving state.
When the dotting signal is sent, different signal instructions are sent within 4 seconds after the 'signal' is pressed according to different continuous pressing times, and if the 'signal' is pressed, the 'parking' is indicated; when the two lower points are pressed, the driving is performed forwards (upwards); pressing three times continuously indicates 'driving after going forward (down'); meanwhile, the sound and light of the signal controller respond for several times after being pressed for several times, and the signal instruction information is broadcasted through voice.
The signal controller with special serial number is set by the program of the control chip U10 (if design No. 88), when the dotting signal is sent for two times and three times, the signal controller of the online all sounds light signals, broadcasts signal instructions and plays 'driving, strictly forbidding pedestrians' voice warning intermittently.
Signal flow: after pressing "signal" button, press several times in 4 seconds, control chip U10's of signal controller mainboard 50 feet become the low level several times by the high level (if press signal "button three times in succession, then control chip U10's 50 feet become the low level three times by the high level), control chip U10 automatic judgement information instruction that sends, with wireless module U2 and carrier wave coding circuit communication, two ways send signal information instruction simultaneously, and self local also reports information instruction content that sends. The signal controller on the line receives the transmitted signal information, firstly, the information is routed and transmitted, and simultaneously, the information instruction content is broadcasted by sound and light and voice, and at the same time, whether the information transmitted by a special number is identified, if so, the K2 relay of the power panel is closed, the red-green conversion of the signal lamp is controlled, and the signal controller on the line broadcasts the warning voice.
A signal receiving process: after the antenna of the signal controller on the online receives the sent signal information, the signal controller communicates with the control chip U10 through the wireless module U2 and the carrier receiving circuit, and after distinguishing and signal processing, the signal controller sends out sound-light information voice and displays the serial number of the signal sending machine and the content of the signal through the display screen, and the control chip U10 outputs high level through the 23 pins to pull in the K2 relay of the power panel.
Referring to fig. 5, after the emergency stop button is pressed, the pin 52 of the control chip U10 changes from high level to low level, the microprocessor inside the control chip U10 transmits an emergency stop encoded signal and a carrier emergency stop encoded signal to the wireless module U2, and the signal controllers in the local area all receive the emergency stop wireless signal and the carrier emergency stop signal, and relay and forward the signals. The signal controllers with the same number (same letters) all send out sound and light signals, and the numbers of the sudden stops are displayed on the display screen. After the signal controller or the main control computer with the designated number receives the signal, the pin 25 of the control chip U10 is at a high level, so that the relay K3 of the power panel is attracted, self-locking is carried out, only the controller sending the emergency stop signal or the controller with the designated number can unlock, and the signal controllers with other numbers have no right to unlock (program control of the control chip U10).
After the host computer sending the emergency stop signal or the mining signal controller with the special number sends the unlocking signal, the main control computer receives the unlocking signal, the 25-pin high level of the control chip U10 is converted into the low level, and the relay K3 is successfully released and unlocked. The carrier wave emergency stop signal receiving and sending process is the same as the above.
Referring to fig. 5 and 6, the field centralized control, one-key start-stop function: firstly, signals E01 and E02. When the stop button is operated, all the equipment on the online is stopped to run simultaneously, so that the operation is simple and the maintenance is convenient.
A control signal sending process: when an operator (equipment driver) starts first E01 equipment, two lines of a wiring terminal P1 on a power panel 3 of the signal controller are in short circuit, a pin 40 of a control chip U10 is changed from high level to low level, the control chip U10 and a wireless module U2 send out a wireless coding signal through an antenna, meanwhile, a carrier coding signal generated by the control chip U10 and a counter integrated circuit chip U17 is amplified by a triode Q9 in a power mode, and is coupled into an AC127V power line through a (high-frequency) transformer T1, capacitors C7, C8, C9 and C10.
The antenna of the signal controller of each device to be centrally controlled in a local area receives the same wireless coding signal, the carrier coding signals in the wireless modules U2 and AC127 of the signal controllers of the E01-En devices and the carrier coding signals in the AC127 are distinguished and processed with the communication signal of the control chip U10 of the local main board through respective signal paths, so that the 23 feet of the control chip U10 are changed from low level to high level, the relays K2 of the power panel are sequentially attracted in a delayed mode, and the E01-En devices are sequentially operated in a delayed mode. When an operator E01 presses a stop button to enable a signal controller of the E01 equipment to send a stop signal, a pin 23 of a control chip U10 of a signal board of the signal controller in the local area is changed from a high level to a low level, a relay K2 of a power supply board is immediately released, and the equipment stops running.
The invention can also be used in combination with a handheld intrinsic safety signal controller to realize the running function of the automatic operation endless rope winch: the handheld intrinsic safety signal controller is communicated and controlled with a signal controller main control machine with a set number. The control method comprises the following steps: after pressing handheld ann signal controller and dotting button two or three down, send the instruction of driving forward, signal controller along the local line all sends reputation twice or thrice after receiving the instruction, loudspeaker just play "driving, banning pedestrian" warning sound afterwards, and only the relay K1 or K2 actuation of the control power panel of signal controller of special serial number controls electromechanical device motor's positive and negative rotation, has realized that the car of asking for the way moves forward or backward. When the hand-held signal controller is received to stop, and the dotting button is pressed down, after the similar signal controllers in the local area receive a stopping instruction, the signal controllers along the line are all sounded once, and stop sound is sent out, a relay K1 or K2 of a main control computer of the No. 1 machine is released, and the endless rope winch stops running. The person holding the intrinsic safety signal controller walks along with the cable car to know the safety condition of the cable car in operation at any time.
The signal control main control computer (if the serial number is set to be 88), when the antenna of each signal controller in the local roadway receives the wireless signal of the two-down or three-down dotting instruction sent by the handheld intrinsic safety signal controller, the signal controller main control computer with the serial number of 88 and the wireless module U2 of the signal controller on the wire communicate with the control chip U10, and the signal data identification processing sends out acousto-optic voice, warning and signal relay. Relays K1, K2 and K3 on the 88 th main control machine power panel are attracted so as to enable the winch cable car to operate.
The invention has scientific and reasonable design, adopts the chip technology and the modern network technology, does not need to arrange wires and install a base station, and can realize the automatic and intelligent control of mine signal communication and electromechanical equipment by utilizing the self relay routing function. Its performance safety, reliable and stable, the interference killing feature is strong, and this signal controller still has acoustic optical signal except can realizing intelligent control, and the speech prompt talkbacks the conversation function, and sound is clear surging, and a tractor serves several purposes, and the operation maintenance is simple and convenient, is the renewal product of ideal among the colliery reputation signal communication device in the pit at present, compares with prior art, by following beneficial effect:
1. extensive cabling and equipment maintenance issues. The communication signal is received, transmitted and relayed by utilizing the relay routing function of the host machine, and a communication network is formed between the host machine and the extension machine without a large number of communication lines and related electrical equipment, so that the maintenance workload is reduced;
2. poor communication quality. Digital signal communication is adopted to replace analog signal communication, and the conversation quality is clear and bright;
3. the application place is limited. The product can be applied to communication, talkback, automation and intelligent control of various places in mines, cement plants and underground mines;
4. the problem of incomplete function. The traditional product has single function, can not integrate other related functions, can not meet the field requirement, and can realize the functions of sound and light alarm, point marking along the line, voice prompt and talkback through field test and use.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention in any way, and it will be apparent to those skilled in the art that variations and modifications can be made in the above disclosed embodiments without departing from the scope of the invention.

Claims (10)

1. A mining flame-proof and intrinsic safety signal controller comprises a shell, a power panel, a microphone, a loudspeaker and a control main board, wherein a handle (14) is arranged on the upper portion of the shell (1), the mining flame-proof and intrinsic safety signal controller is characterized in that the shell (1) is divided into a flame-proof cavity (101) and an intrinsic safety cavity (102) through a partition plate (2), the power panel (3) is arranged in the flame-proof cavity (101), the control main board (4) and the loudspeaker (11), a display screen (7), an indicator lamp (9) and the microphone (10) which are connected with the control main board (4) are arranged in the intrinsic safety cavity (102), the control main board (4) is connected with the power panel (3) through a flame-proof type wiring terminal (5) arranged on the partition plate (2), the explosion-proof power supply device is characterized in that a plurality of first cable leading-in devices (6) connected with a power supply board (3) are arranged outside a shell (1) at the explosion-proof cavity (101), a second cable leading-in device (601) is arranged outside the shell (1) at the intrinsic safety cavity (102), a through hole (13) corresponding to a display screen (7), an operation button (8), an indicator lamp hole corresponding to an indicator lamp (9), a microphone hole corresponding to a microphone (10), an antenna interface terminal (1201) and a loudspeaker hole (1101) corresponding to a loudspeaker (11), an antenna (12) is arranged on the antenna interface terminal (1201), the operation button (8), the indicating lamp (9), the microphone (10) and the antenna (12) are respectively connected with the control mainboard (4) to realize the functions of dotting, acousto-optic signals and signal instructions, voice broadcasting, talkback, display screen display, designated number information signal lamp conversion control, voice warning and equipment control;
a control circuit is arranged on the control main board (4), wherein a pin 5 and a pin 6 of a control chip U10 are respectively connected with a pin 2 and a pin 1 of the crystal oscillator Y1 and respectively connected with one ends of a capacitor C28 and a capacitor C29, and the other common end of the capacitor C28 and the capacitor C29 is grounded; the pin 7 of the control chip U10 is respectively connected with a resistor R18 connected with VDD3.3V, a diode D14 and a grounding capacitor C27; pins 16 and 17 of a control chip U10 are respectively connected with pins 4 and 5 of a wireless module U2, pins 23, 24 and 25 of the control chip U10 are respectively connected with pins 3, 4 and 5 of a chip P10, pin 26 of the control chip U10 is connected with pin 2 of an optical coupler U8, pins 29 and 30 of the control chip U10 are respectively connected with pin 8 and pin 9 of a SIM network communication module U29, pin 34 of the control chip U10 is connected with pin 4 of an optical coupler U13, pin 35 of the control chip U10 is connected with pin 4 of an optical coupler U15, pin 37 of the control chip U10 is connected with pin 2 of an optical coupler U12, pins 38, 40, 39, 51, 52 and 50 of the control chip U10 are respectively connected with a grounded resistor R47, a resistor R10, a resistor R11, a resistor R12, a resistor R13 and a resistor R15, the resistor R11, the resistor R12, the resistor R13, the resistor R15 and the pins 39, 51, 52 and 50 of the control chip U10 are respectively connected with the button SW4, the button SW3, the button SW2 and the button SW1, so that functions of dotting, emergency stop, unlocking and voice talkback are realized, the pins 42, 43, 44 and 45 of the control chip U10 are respectively connected with the pins 4, 5, 6 and 17 of the display module U6, the pins 46, 47, 48 and 49 of the control chip U10 are respectively connected with the pins 1, 2, 3 and 4 of the chip P3, the pin 53 of the control chip U10 is connected with the pin 1 of the voice power amplification chip U3, the pins 54 and 55 of the control chip U10 are respectively connected with the pins 2 and 3 of the voice chip U4, the pin 57 of the control chip U10 is connected with the pin 2 of the opto-coupler U8, and the pin 60 of the control chip U10 is grounded through the resistor R14; the power supply of DC12V is converted into sysDC9V through a three-terminal regulator U5 to supply power to the carrier circuit, and the power supply is output by a regulator U9 to VCC3.3V to supply power to a control chip U10; a pin 1 of the display module U6 is respectively connected with a pin 5 of the display module U6, a pin 44 of the control chip U10 and a pin 18 of the display module U6 through a variable resistor RT1, a pin 2 of the display module U6 is connected with a three-terminal regulator U1 to input DC12V, pins 15 and 20 of the display module U6 are grounded, and a pin 19 of the display module U6 is connected with a VCC5V power supply; in the signal data transmission among the mining signal controllers, two communication technologies of wireless local area network communication and carrier communication are applied, two paths of signals simultaneously receive and transmit the same signal instruction, and advantage complementation is formed, so that the communication and the data transmission are more timely, safe and reliable; the communication of the upper 4G/5G network and the lower 4G/5G network of the mine is realized through the SIM network communication module U29, and if no 4G/5G signal exists in the mine, data signals are relayed and transmitted mutually and equipment operation is controlled through a wireless local area network formed by the signal controller base machine and the extension machine.
2. The mining flameproof and intrinsically safe signal controller according to claim 1, wherein 4 first cable lead-in devices (6) are provided, one of the cable leading-in devices is connected with an external AC127V power supply, the other three cable leading-in devices are used for automatic control, a power supply control circuit is arranged on the power panel (3), the power supply control circuit is composed of a first transformer T1, a voltage stabilizing circuit, a relay control circuit and plug-in type wiring terminals P7, P6 and P5, wherein the wiring terminal P1 is connected with an AC127V power supply through one of the cable leading-in devices, a pin 1 of the wiring terminal P1 is connected with a pin 1 of the wiring terminal P4 through a capacitor C7 and a capacitor C9, a pin 1 and a pin 2 of the wiring terminal P4 are connected with an H end and a G end of the AC127V through the capacitor C7, a capacitor C81, a capacitor C91 and a capacitor C101 and are communicated with the transformer T1 on the control mainboard (4) to form a carrier signal communication loop, a primary coil of the first transformer T1 is connected with the AC127V, the middle tap is connected with AC36V, the two secondary coils are respectively connected with 15V, the two output ends of the secondary coil 4 are connected with a second rectification voltage stabilizing circuit, the second rectification voltage stabilizing circuit comprises a first layer overvoltage and overcurrent protection circuit and a second layer overvoltage and overcurrent protection circuit, a power supply is output by the second layer overvoltage and overcurrent protection circuit to be +12-2V, a stable and reliable intrinsic safety circuit with double overvoltage and overcurrent protection is generated, a connecting terminal P10 is connected with a connecting terminal P4 through an explosion-proof connecting terminal (5) to supply power to a control main board (4), the two output ends of the secondary coil 5 are connected with a first rectification voltage stabilizing circuit, the +12V power supply is output by the first rectification voltage stabilizing circuit to supply power to the control circuits of the relay K1, the relay K2 and the relay K3; the pin 1 of the primary coil of the first transformer T1 is connected with the pin 1 of the wiring terminal P1 through the fuse FU1, the pin 2 of the primary coil of the first transformer T1 is connected with the pin 3 of the wiring terminal P3, the pin 3 of the primary coil of the first transformer T1 is connected with the pin 1 of the wiring terminal P3, the pin 2 of the wiring terminal P3 is connected with the pin 2 of the wiring terminal P1, the pin 3 of the wiring terminal P1 is connected with the pin 2 of the wiring terminal P4 through the serially connected capacitor C81 and the capacitor C101, the pin 1 of the wiring terminal P1 is connected with the pin 1 of the wiring terminal P4 through the serially connected capacitor C7 and the capacitor C91, the pin 3, the pin 4 and the pin 5 of the wiring terminal P4 are connected with the control circuit of the relay K1, the relay K2 and the relay K3, the relay K1, the relay K2 and the relay K3 are respectively connected with the plug-in-plug type wiring terminal P7, the plug-type wiring terminal P6 and the plug-type wiring terminal P5, the pin 7 of the wiring terminal P4 is connected with the power supply +12-2.
3. The mining flameproof and intrinsically safe signal controller according to claim 2, characterized in that a secondary coil 4 of the first transformer T1 is connected with pins 1 and 3 of a rectifier D1, pin 4 of the rectifier D1 is connected with pin 1V-, pin 2 of the rectifier D1 is connected with an emitter of a triode Q101, a collector of the triode Q101 is connected with an emitter of a triode Q61, a collector of the triode Q61 is connected with one end of a resistor R351, a common end D of the collector of the triode Q61 and the resistor R351 is connected with pin 6 of a connection terminal P4, and the other end of the resistor R351 is connected with a grounded light emitting diode D13; the first layer of overvoltage and overcurrent protection circuit is that the base electrode of a triode Q101 is connected with the collector electrode of a triode Q21 through a resistor R2, the emitter electrode of the triode Q21 is connected with a voltage stabilizing diode D3, the other end of the voltage stabilizing diode D3 is grounded, the base electrode of the triode Q21 is connected with the collector electrode of a triode Q31 through a resistor R4 and the common end B of a polar capacitor C2, the emitter electrode of the triode Q31 is connected with a grounded voltage stabilizing diode D4, the base electrode of the triode Q31 is connected with the pin 1 of a potentiometer R10, the pin 3 of the potentiometer R10 is grounded, the pin 2 of the potentiometer R10 is connected with one end of a resistor R111, the other end of the resistor R111 is connected with the common end of a resistor R301 and a resistor R501 +12-1, the other end of the resistor R301 is connected with the positive electrode of the polar capacitor C2 through a resistor R4, the negative electrode of the polar capacitor C2 is grounded, the other end of the resistor R501 is connected with one end of a resistor R72 through a resistor R601, the other end of the resistor R72 and the common end of the cathode of the polar capacitor C301 are respectively connected with a resistor R82 and a power supply 1V-, the pin 2 of the chip U1A is respectively connected with the anode of the polar capacitor C301 and one end of the resistor R99, the other end of the resistor R99 is connected with the common end of the resistor R82 and the resistor R19, the other end of the resistor R82 is connected with the power supply 1V-, the pin 3 of the chip U1A is connected with the common end of a resistor R501 and a resistor R601, the pin 4 of the chip U1A is connected with the 1V-, the pin 1 of the chip U1A is connected with a resistor R4 and a common end A of the polar capacitor C2, the emitter of the triode Q41 and the pin 8 of the chip U1A are connected with the common end of 1V + through the common end of the resistor R301 and the resistor R4, the base electrode of the triode Q41 and the common end of the resistor R1V + of the voltage regulator D2, the other end of the voltage regulator diode D2 is connected with the other end of the 1V-, the other end of the resistor R1 and the other end of the collector of the resistor R1 and the collector of the triode Q41 and the collector of the polar capacitor C1 and the rectifier D1 and the collector 51 of the triode Q101, the negative electrode of the polar capacitor C1 is connected with 1V-; the second overvoltage and overcurrent protection circuit is characterized in that the base electrode of the triode Q51 is connected with the common end of the resistor R121 and the voltage-stabilizing diode D5, the other end of the voltage-stabilizing diode D5 is respectively connected with the resistor R82, the resistor R19 and the power supply 2V-, the other end of the resistor R121 is connected with the collector electrode of the triode Q51, and the emitter electrode of the triode Q51 is connected with the pin 8 of the chip U2B through the common end of the resistor R141 and the resistor R151 to form 2V +; the base electrode of the triode Q61 is connected with the collector electrode of the triode Q7 through the resistor R131, the emitter electrode of the triode Q7 is grounded through the voltage stabilizing diode D9, the base electrode of the triode Q7 is connected with the collector electrode of the triode Q81 through the resistor R151 and the common end C of the polar capacitor C4, the negative electrode of the polar capacitor C4 is grounded, the emitter electrode of the triode Q81 is grounded through the voltage stabilizing diode D7, the base electrode of the triode Q81 is connected with the pin 1 of the potentiometer R302, the pin 3 of the potentiometer R302 is grounded, the pin 2 of the potentiometer R10 is connected with one end of the resistor R311, the other end of the resistor R311 is connected with the common end D together with the positive electrodes of the resistor R141, the resistor R16 and the polar capacitor C6, and the negative electrode of the polar capacitor C6 is grounded; the other end of the resistor R141 is connected with the anode of the polar capacitor C4 through a resistor R151, the cathode of the polar capacitor C4 is grounded, the other end of the resistor R16 is connected with one end of a resistor R181 through a resistor R171, the common end of the other end of the resistor R181 and the cathode of the polar capacitor C501 is respectively connected with a resistor R19 and a resistor R2V-, a pin 2 of the chip U2B is respectively connected with the anode of the polar capacitor C501 and one end of a resistor R201, the other end of the resistor R201 is connected with 2V through a resistor R191, a pin 5 of the chip U2B is connected with the common end of the resistor R16 and the resistor R171, a pin 7 of the chip U2B is connected with a resistor R151 and the common end E of the polar capacitor C4, and a pin 4 of the chip U2B is connected with 2V-; the control circuit of the relay K1, the relay K2 and the relay K3 is that a pin 3, a pin 4 and a pin 5 of a connecting terminal P4 are respectively connected with bases of a triode Q91, a triode Q10 and a triode Q11 through a resistor R231, a resistor R271 and a resistor R331, the resistor R231 is connected with one end of a resistor R241 between the base of the triode Q91 and the base of the resistor R241, the other end of the resistor R241 is grounded with the common end of an emitting electrode of the triode Q91, a collecting electrode of the triode Q91 is respectively connected with a resistor R211, a diode D16 and the relay K1, the other end of the resistor R211 is connected with the other end of the diode D16 through a light emitting diode D151, the common end of the light emitting diode D151 and the diode D16 is connected with the relay K1 through a voltage stabilizing circuit, and the relay K1 is connected with a plug-in connecting terminal P7; the resistor R271 is connected with one end of a resistor R281 between the base electrodes of the triode Q10, the other end of the resistor R281 is grounded with the common end of the emitting electrode of the triode Q10, the collector electrode of the triode Q10 is respectively connected with the resistor R261, the diode D9 and the relay K2, the other end of the resistor R261 is connected with the other end of the diode D9 through the light-emitting diode D81, and the common end of the light-emitting diode D81 and the diode D9 and the relay K2 are jointly connected with a voltage stabilizing circuit; the relay K2 is connected with the plug-in wiring terminal P6; the resistor R331 is connected with one end of the resistor R341 between the base electrodes of the triode Q11, the other end of the resistor R341 is grounded with the common end of the emitting electrodes of the triode Q11, the collector electrode of the triode Q11 is respectively connected with the resistor R321, the diode D10 and the relay K3, the other end of the resistor R321 is connected with the other end of the diode D11 through the light-emitting diode D10, and the common end of the light-emitting diode D10 and the diode D11 and the relay K3 are jointly connected with a voltage stabilizing circuit; the relay K3 is connected with the plug-in wiring terminal P5.
4. The mining flameproof and intrinsically safe signal controller according to claim 1, characterized in that 2 pins of the voice power amplifier chip U3 are grounded through a capacitor C10, 3 pins of the voice power amplifier chip U3 are connected with one end of a resistor R3, the other end of the resistor R3 is respectively connected with a capacitor C74 and a capacitor C5, the other end of the capacitor C5 is connected with 3 pins of a programming control switch chip U7, the other end of the capacitor C74 is connected with 7 pins of a voice chip U4, 6 pins of the voice power amplifier chip U3 are connected with VCC5V, 5 pins and 8 pins of the voice power amplifier chip U3 are connected with a loudspeaker (11), and 0 pin and 7 pin of the voice power amplifier chip U3 are grounded; a pin 1 of a voice chip U27 is connected with one end of a light-emitting diode D3, the other end of the light-emitting diode D3 is connected with VDD3.3V through a resistor R95, a pin 2 of the voice chip U27 is connected with a pin 1 of an optocoupler U13, a pin 3 of the voice chip U27 is respectively connected with a resistor R92 connected with VDD3.3VD and a grounding resistor R94, a pin 8 of the voice chip U27 is grounded, a pin 6 and a pin 5 of the voice chip U4 are respectively connected with one ends of a capacitor C73 and a capacitor C72, and the other common end of the capacitor C73 and the capacitor C72 is grounded; a pin 1 of the voice chip U4 is connected with one end of the light-emitting diode D2, the other end of the diode D2 is connected with VDD3.3V through a resistor R2, a pin 7 of the voice chip U4 is connected with a pin 13 of the programming control switch chip U7, pins 6 and 5 of the voice chip U4 are respectively connected with one ends of a capacitor C9 and a capacitor C8, and the other common end of the capacitor C9 and the capacitor C8 is grounded; pins 6, 7, 8, 9 and 11 of a programming control switch chip U7 are grounded, a pin 10 of the programming control switch chip U7 is connected with a pin 3 of an optical coupler U8, a pin 15 of the programming control switch chip U7 is connected with a pin 5 of a power amplifier chip U21, and a pin 16 of the programming control switch chip U7 is connected with a pin 4 of the optical coupler U8; a pin 1 of the optical coupler U8 is connected with VDD3.3V through a resistor R7, a pin 3 of the optical coupler U8 is connected with a pin 10 of a programming control switch chip U7, a grounding capacitor C14 and a grounding resistor R9, and a pin 4 of the optical coupler U8 is connected with sysDC9V; a pin 1 of the optocoupler U11 is connected with VDD3.3V through a resistor R17, a pin 3 of the optocoupler U11 is connected with one end of a resistor R19, the other end of the resistor R19 is connected with the common end of a resistor R20 and a pin 1 of the triode Q1, the common end of the resistor R20 and a pin 2 of the triode Q1 is grounded, a pin 3 of the triode Q1 is connected with one end of a light-emitting tube D8, the other end of the light-emitting tube D8 is connected with a power supply sysDC9V through a resistor R8, and a pin 4 of the optocoupler U11 is connected with VCC3.3V.
5. The mining flameproof and intrinsically safe signal controller according to claim 4, characterized in that a pin 1 of the power amplifier chip U21 is connected with a pin 8 of the power amplifier chip U21 through a polar capacitor C61, pins 2 and 4 of the power amplifier chip U21 are grounded, a pin 3 of the power amplifier chip U21 is connected with a common end of a diode D28 and a capacitor C59, the other end of the diode D28 is connected with a resistor R61, the other end of the resistor R61 is connected with a common end of a resistor R60, a pin 8 of the decoder chip U20 and a pin 1 of an optocoupler U15, the other end of the resistor R60 is connected with a power sysDC9V, a pin 5 of the power amplifier chip U21 is connected with a pin 15 of a programming control switch chip U7 through a resistor R58, a pin 6 of the power amplifier chip U21 is connected with a pin 3 of the chip OP1, a common end of the resistor R33 and a resistor R34, the other end of the resistor R33 is connected with a collector of a triode Q4 and one end of the resistor R35, an emitter of the triode Q4 is grounded, a collector of the triode Q4 is connected with a pin of the resistor R35, a collector of the resistor C35 is connected with a collector of the other end of the capacitor C35, and a capacitor C35 of the decoder chip C34 is connected with a capacitor C35, and a capacitor C20 of the decoder chip C35, and a capacitor C35 are connected with a capacitor C35, and a capacitor C35; the common end of a resistor R34 and the base electrode of a triode Q4 is connected with one end of a resistor R41, the other end of the resistor R41 is respectively connected with a pin 6 of a transformer T1 and one end of a capacitor C40, a pin 1 and a pin 3 of the transformer T1 are respectively connected with a pin 4 and a pin 3 of a magnetic ring T2, the pin 4 of the transformer T1 is respectively connected with the capacitor C40, a resistor R44 and a grounded polar capacitor C42, the other end of the resistor R44 is respectively connected with a resistor R45 and one end of a resistor R50, the other end of the resistor R45 is connected with the base electrode of a triode Q6, the emitting electrode of the triode Q6 is grounded, the resistor R45 and the resistor R50 are connected with a pin 3 of a chip OP2, the pin 6 of a power amplifier chip U18 and the grounded polar capacitor C41, the other end of the resistor R50 is respectively connected with a resistor R51 and one end of a diode D27, the other end of the resistor R51 is connected with a pin 2 of a pin of a triode Q8, the pin 1 of a triode Q8 is grounded, the pin 3 of the triode Q8 is connected with a pin 3 of a chip OP3, the other end of the diode D27 is respectively connected with a pin 5 of the decoding chip U20 and one end of a resistor R54, the other end of the resistor R54 is connected with one end of a variable resistor RT2, the other end of the variable resistor RT2 is connected with a grounded capacitor C56, a pin 6 of the decoding chip U20 is connected between the variable resistor RT2 and the capacitor C56, a pin 7 of the decoding chip U20 is grounded, a pin 1 of the decoding chip U20 is connected with a grounded polar capacitor C52, a pin 4 of the decoding chip U20 is connected with one end of a resistor R47 through a grounded diode D25 and a grounded polar capacitor C44, the other end of the resistor R47 is connected with a power supply sysDC9V, a pin 2 of the decoding chip U20 is connected with a capacitor C57, a grounded capacitor C49 and a resistor R52, the other end of the capacitor C57 is respectively connected with a capacitor C59 and a grounded capacitor C60 through a resistor R66, the other end of the resistor R52 is respectively connected with a grounded resistor R56 and a resistor R53 through a capacitor C47, the other end of the resistor R53 is connected with a pin 5 of the power amplifier U18 through a capacitor C48, the pin 4 and the pin 2 of the power amplifier chip U18 are grounded, the pin 3 of the power amplifier chip U18 is respectively connected with a grounded capacitor C46, a resistor R48 and one end of a microphone (10) through a capacitor C45, and the resistor R48 is connected with a power supply sysDC9V.
6. The mining flameproof and intrinsically safe signal controller according to claim 1, characterized in that a pin 1 of the optocoupler U13 is connected with a pin 2 of the voice chip U27 and a pin 8 of the decoding chip U19 through a resistor R26, a capacitor C30 is connected between the pin 1 and the pin 2 of the optocoupler U13, the common end of the capacitor C30 and the pin 2 of the optocoupler U13 is grounded, a capacitor C31 is connected between a pin 4 and a pin 3 of the optocoupler U13, the common end of the capacitor C31 and the pin 3 of the optocoupler U13 is grounded, the pin 4 of the optocoupler U13 is connected with one end of the resistor R27, and the pin 4 of the optocoupler U13 is connected with a pin 34 of the control chip U10; a pin 1 of the optical coupler U15 is connected with a pin 8 of the decoding chip U20 through a resistor R31, a capacitor C32 is connected between a pin 1 and a pin 2 of the optical coupler U15, the common ends of the capacitor C32 and the pin 2 of the optical coupler U15 are grounded, a capacitor C33 is connected between a pin 4 and a pin 3 of the optical coupler U15, the common ends of the capacitor C33 and the pin 3 of the optical coupler U15 are grounded, a pin 4 of the optical coupler U15 is connected with one end of the resistor R32, a pin 35 of the control chip U10 is connected between the pin 4 of the optical coupler U15 and the resistor R32, and the other common end of the resistor R32 and the resistor R27 is connected with VDD3.3V; a pin 1 of the optocoupler U12 is connected with a pin VDD3.3V through a resistor R22, a pin 2 of the optocoupler U12 is connected with a pin 37 of a control chip U10, a grounding resistor R81 and a pin 1 of a reverse circuit U22A, a pin 2 of the reverse circuit U22A is connected with a pin 2 of a chip OP1, the pin 1 of the chip OP1 is connected with one end of a resistor R67, the other end of the resistor R67 is respectively connected with a resistor R66, a resistor R21 and a power supply VCC3.3V, the other end of the resistor R66 is connected with the pin 1 of the chip OP2, the other end of the resistor R21 is connected with a diode D15, the other end of the diode D15 is respectively connected with the pin 2 of the chip OP2 and a pin 3 of the triode Q2, the pin 1 of the triode Q2 is connected with the common end of the resistor R23 and the common end of the resistor R24, the other end of the resistor R24 is connected with the common end of the pin 2 of the triode Q2 and the common end of the pin 3 of the optocoupler U12 is grounded; a common-end power supply sysDC9V of the 4 pins of the chip OP1 and the 4 pins of the chip OP 2; a pin 1 of the optocoupler U14 is connected with VDD3.3V through a resistor R28, a pin 2 of the optocoupler U14 is connected with a pin 38 of the chip U10, a grounding resistor R80 and a pin 3 of a reverse circuit U22B, a pin 4 of the reverse circuit U22B is connected with a pin 2 of the chip OP3, a pin 1 of the chip OP3 is connected with one end of a resistor R70, the other end of the resistor R70 is respectively connected with a resistor R71, a resistor R69, a resistor R25 and a power supply VCC3.3V, the other end of the resistor R71 is connected with a pin 1 of the chip OP4, the other end of the resistor R69 is connected with a pin 1 of the chip OP5, the other end of the resistor R25 is connected with one end of a diode D17, the other end of the diode D17 is respectively connected with a pin 2 of the chip OP4, a pin 2 of the chip OP5 and a pin 3 of the triode Q3, a pin 1 of the triode Q3 is connected with a common end of the resistor R29 and a resistor R30, the other end of the optocoupler R30 is connected with a common end of the triode Q2; the common terminal of the 4 pins of the chip OP3 and the 4 pins of the chip OP4 is connected with the 5 pin of the transformer T1, the 3 pins of the chip OP5 are connected with the 4 pins of the transformer T1, and the 4 pins of the chip OP5 are connected with the power sysDC9V.
7. The mining flameproof and intrinsically safe signal controller according to claim 6, characterized in that pins 1 and 2 of a decoding chip U19 are respectively connected with one end of a polar capacitor C53 and one end of a capacitor C51, the other common end of the polar capacitor C53 and the other end of the capacitor C51 are grounded, pin 3 of the decoding chip U19 is respectively connected with pin 3 of a decoding chip U23, a grounded capacitor C39 and a resistor R39, the other end of the resistor R39 is connected with a capacitor C38, the other end of the capacitor C38 is respectively connected with a diode D21, a diode D22 and a capacitor C37, the other ends of the diode D21 and the diode D22 are commonly grounded, the other end of the capacitor C37 is connected with one end of a resistor R40, the other end of the resistor R40 is respectively connected with a resistor R38 and a collector of a triode Q5, an emitter of the triode Q5 is grounded, a base of the triode Q5 is respectively connected with a base of a transistor Q4 and a resistor R37, the other end of the resistor R37 is connected with a common power supply sysDC9V, the pin 4 of the decoding chip U19 is respectively connected with the pin 4 of the decoding chip U23, the polar capacitor C43, the diode D26 and the resistor R46, the other end of the resistor R46 is connected with the power supply sysDC9V, the other common end of the polar capacitor C43 and the diode D26 is grounded, the pin 5 of the decoding chip U19 is connected with the pin 3 of the chip U26, the pin 6 of the decoding chip U19 is respectively connected with the grounded capacitor C58, the variable resistor RT4, the variable resistor RT5, the variable resistor RT6 and the variable resistor RT7, the other end of the variable resistor RT7 is connected with a pin 12 of the chip U26 through a resistor R91, the other ends of the variable resistor RT4, the variable resistor RT5 and the variable resistor RT6 are respectively connected with a pin 15, a pin 14 and a pin 13 of the chip U26 through a resistor R55, a resistor R87 and a resistor R88, a pin 7 of the decoding chip U19 is grounded, a pin 8 of the decoding chip U19 is respectively connected with a resistor R59 and a pin 2 of the voice chip U4, and the other end of the resistor R59 is connected with a power supply sysDC9V; the common end and the 9 pin of the 6 pin, the 7 pin and the 8 pin of the chip U26 are grounded, and the 16 pin of the chip U26 is connected with a power supply sysDC9V; pin 1 and pin 2 of the decoding chip U23 are respectively connected with a grounded capacitor C63 and a grounded capacitor C65, pin 4 of the decoding chip U23 is respectively connected with a grounded diode D32, a grounded polar capacitor C62 and a resistor R62, the other end of the resistor R62 is connected with a power supply sysDC9V, pin 5 of the decoding chip U23 is connected with the resistor R63, the other end of the resistor R63 is connected with pin 6 of the decoding chip U23 and a grounded capacitor C64 through a variable resistor RT3, pin 7 of the decoding chip U23 is grounded, pin 8 of the decoding chip U23 is respectively connected with a resistor R93 and a resistor R64 connected with the power supply sysDC9V, and the other end of the resistor R93 is grounded through a light emitting diode D23; a pin 1 of the optocoupler U24 is connected with a pin VDD3.3V through a resistor R84, a pin 2 of the optocoupler U24 is connected with a pin 11 of the control chip U10, a pin 3 of the optocoupler U24 is respectively connected with a pin 10 of the capacitor C71, a resistor R86 and the programming control switch chip U25, the other common end of the capacitor C71 and the resistor R86 is grounded, and a pin 4 of the optocoupler U24 is connected with a power supply sysDC9V; a pin 1 of the optical coupler U16 is connected to VDD3.3V through a resistor R83, a pin 2 of the optical coupler U16 is connected to a pin 10 of a chip U10, a pin 3 of the optical coupler U16 is respectively connected with a capacitor C66, a resistor R85 and a pin 11 of a programming control switch chip U25, the other common end of the capacitor C66 and the resistor R85 is grounded, and a pin 4 of the optical coupler U16 is connected with a power supply sysDC9V; a pin 3 of a programming control switch chip U25 is connected with a pin 1 of a triode Q9 through a capacitor C54, a pin 3 of the triode Q9 is grounded, a pin 2 of the triode Q9 is connected with a pin 3 of a chip OP4, a pin 8 and a pin 9 of the programming control switch chip U25 are grounded, a pin 12 and a pin 13 of the programming control switch chip U25 are respectively connected with a pin 5 and a pin 7 of a counter integrated chip U28, a pin 14 and a pin 15 of the programming control switch chip U25 are respectively connected with a pin 5 and a pin 7 of a counter integrated chip U17, a pin 16 of the programming control switch chip U25 is connected with a power sysDC9V, a pin 8 and a pin 12 of the counter integrated chip U28 are grounded, a pin 10 of the counter integrated chip U28 is respectively connected with one end of a resistor R94, a pin 2 of a crystal oscillator Y2 and a grounded capacitor C76, a pin 11 of the counter integrated chip U28 is respectively connected with the other end of the resistor R94, a pin 1 of the crystal oscillator Y2 and a grounded capacitor C75, and a pin 16 of the counter integrated chip U28 is connected with a pin 4 of a transformer T1 through a resistor R97; the pin 8 and the pin 12 of the counter integrated chip U17 are grounded, the pin 10 of the counter integrated chip U17 is respectively connected with one end of a resistor R27, the pin 2 of the crystal oscillator Y3 and a grounded capacitor C50, the pin 11 of the counter integrated chip U17 is respectively connected with the other end of a resistor R57, the pin 1 of the crystal oscillator Y2 and a grounded capacitor C55, and the pin 16 of the counter integrated chip U17 is connected with the pin 4 of the transformer T1 through a resistor R96.
8. The mining flameproof and intrinsically safe signal controller according to claim 1, characterized in that a glass pressing plate (15) is arranged in the intrinsically safe cavity (102) corresponding to the through hole (13), the display screen (7) is arranged on the control main board (4) through a screw, and the display screen (7) is observed through the through hole (13) and the glass pressing plate (15); antenna interface terminal (1201) on be equipped with mounting hole (1206), the antenna feeder of antenna (12) stretches into mounting hole (1206) and links to each other with antenna interface terminal (1201), antenna (12) and mounting hole (1206) are equipped with sealing washer (1202) from inside to outside in proper order, metal pad (1203) and compress tightly hollow nut (1204), it compresses tightly metal pad (1203) and sealing washer (1202) to rotate compress tightly hollow nut (1204), realize sealedly, it is equipped with direction card pipe (1205) of L type to compress tightly hollow nut (1204) outside, the end that stretches out of antenna (12) stretches out the outside through direction card pipe (1205).
9. The mining flameproof and intrinsically safe signal controller according to any one of claims 1 to 8, characterized in that when the mining flameproof and intrinsically safe signal controller operates a button SW2 'scram' button, the same type of mining flameproof and intrinsically safe signal controllers on a line can both send acousto-optic signals, display the number of a machine sending a scram instruction, and realize the locking function of signal equipment; the mining explosion-proof and intrinsic safety signal controller with different letter codes on the connecting line only relays data signal information, and other functions do not respond; only the machine which sends the emergency stop instruction and the mining explosion-proof and intrinsic safety signal controller with the same number specified by the program design are unlocked.
10. The mining flameproof and intrinsically safe signal controller according to any one of claims 1 to 8, which is characterized in that the mining flameproof and intrinsically safe signal controller can receive and transmit data signals, wherein a relay routing function can infinitely prolong a wireless communication distance in a severe underground coal mine environment; when receiving and transmitting acousto-optic signals, acousto-optic signals are received and transmitted for several times, and a loudspeaker (11) broadcasts information receiving and transmitting instructions in a voice mode.
CN202210980712.9A 2022-08-16 2022-08-16 Mining explosion-proof and intrinsic safety signal controller Pending CN115278574A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210980712.9A CN115278574A (en) 2022-08-16 2022-08-16 Mining explosion-proof and intrinsic safety signal controller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210980712.9A CN115278574A (en) 2022-08-16 2022-08-16 Mining explosion-proof and intrinsic safety signal controller

Publications (1)

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CN115278574A true CN115278574A (en) 2022-11-01

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Application Number Title Priority Date Filing Date
CN202210980712.9A Pending CN115278574A (en) 2022-08-16 2022-08-16 Mining explosion-proof and intrinsic safety signal controller

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