Mining belt conveyor control equipment

Abstract

The invention belongs to the technical field of wireless communication, and particularly discloses mining belt conveyor control equipment which comprises a main controller and a sub-control system, and the main controller is used for being connected with a belt conveyor driving part and controlling the belt conveyor driving part to drive a belt conveyor to operate. The plurality of sub-control systems are arranged along a belt of the belt conveyor at intervals; each sub-control system comprises a sensor, an emergency stop switch and a sub-controller, and the sensor is used for collecting operation information of the belt conveyor; the emergency stop switch is used for receiving a control instruction of an operator to realize switching control of a switch state; the sub-controllers are respectively connected with the sensors and the emergency stop switches, the sub-controllers and the main controller are in wireless communication connection through Wi F i-Mesh networking, and the sub-controllers are in wireless communication connection through Wi F i-Mesh networking. The wireless communication mode of WiFi-Mesh networking is adopted between the main controller and the sub-controllers and between the sub-controllers, complex wiring is not needed, use convenience is achieved, and the overall size of the device is greatly reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of wireless communication, and in particular relates to a mining belt conveyor control device. Background Art

[0002] The belt conveyor controller used in coal mines is usually the core component of the coal mine belt centralized control system. It is responsible for automatically controlling the belt conveyor to ensure the safe, efficient and reliable operation of the transportation system.

[0003] Traditional belt conveyor controllers used in coal mines usually use mining cables to connect sensors and control switches along the belt conveyor. The specific implementation steps are to install the main controller of the belt conveyor at the head of the belt conveyor, then lay multi-core mining cables along the conveyor conveyor direction, then install power supplies, sub-controllers, sensors and control switches along the belt conveyor, and finally use mining cables to connect sensors and control switches to the main controller.

[0004] The traditional belt conveyor controller needs to install an independent switch inside, and then connect the network port of the main control board to the switch to achieve the access capability of the local area network. Therefore, when the traditional belt conveyor controller is implemented, the belt conveyor main controller is connected to the sensor and control switch with mining cables, which is cumbersome to install and troublesome to wire. In addition, the mining cable needs to run through the entire belt line, and the line length is several kilometers. The cable is easily damaged, and the signal transmitted by the cable is also easily interfered. What's more, since an independent switch needs to be installed, the overall size of the equipment is greatly increased. Due to the internal space limitation of the mine cave, its implementation in the mine cave is too limited. Summary of the invention

[0005] In view of the above-mentioned problems, the purpose of the present invention is to provide a mining belt conveyor control device, which can realize the wireless installation and communication of the belt conveyor sub-controller and greatly reduce the overall size of the equipment, making it more suitable for use in mines with limited internal space.

[0006] The technical solution of the present invention is: a mining belt conveyor control device, including a main controller and a sub-control system.

[0007] The main controller is used to connect with the belt conveyor drive and control the belt conveyor drive to drive the belt conveyor. There are multiple sub-control systems, which are arranged at intervals along the belt of the belt conveyor; each sub-control system includes: sensors for collecting the operation information of the belt conveyor; emergency stop switches for receiving control instructions from operators to realize the conversion control of the switch state; sub-controllers are respectively connected to sensors and emergency stop switches to receive the operation information collected by the sensors connected to them and the switch state of the emergency stop switches connected to them; the main controller and each sub-controller and each sub-controller are connected through WiFi-Mesh wireless communication; WiFi-Mesh networking is a wireless mesh network technology.

[0008] Furthermore, the main controller includes:

[0009] The shell is divided into a flameproof chamber and an intrinsically safe chamber by a partition;

[0010] The control panel is located in the intrinsically safe chamber and is connected to each sub-controller in communication;

[0011] A power supply component is arranged in the flameproof chamber and connected to the control panel to supply power to the control panel;

[0012] The solid-state relay is installed in the flameproof chamber and connected to the control board for non-safety switch output.

[0013] Furthermore, the side wall of the intrinsically safe chamber is provided with a display screen, buttons and a plug;

[0014] The display screen is connected to the control panel and is used to display various status information;

[0015] The button is connected to the control panel and is used to receive user instructions and set relevant parameters;

[0016] The plug is connected to the control board and is used to connect the control line.

[0017] Furthermore, the power supply assembly includes:

[0018] Wide-voltage switching power supply, connected to an external power supply, used to convert external 60V-265V AC power into 24V DC power;

[0019] The first intrinsically safe power supply is electrically connected to the wide voltage switching power supply and the control board respectively, and is used for converting 24V direct current into a 12V intrinsically safe power supply and supplying power to the control board.

[0020] Furthermore, the power supply assembly is also used for external output, and the power supply assembly also includes a second intrinsically safe power supply; the second intrinsically safe power supply is connected to the wide-voltage switching power supply, and is used to convert 24V DC power into a 24V intrinsically safe power supply for external output.

[0021] Furthermore, the control panel includes:

[0022] processor;

[0023] The first input circuit is electrically connected to the processor and the external switch quantity input device, respectively, and is used to receive the switch quantity of the external switch quantity input device;

[0024] A first output circuit is electrically connected to the processor and the first external device, respectively, and is used to transmit a control signal to the first external device;

[0025] RS485 circuit, electrically connected to the processor and the display screen respectively, for communication connection between the processor and the display screen;

[0026] A second output circuit is electrically connected to the processor and the second external device, respectively, and is used to transmit a control signal to the second external device;

[0027] A second input circuit is electrically connected to the processor and the sensor, respectively, and is used to transmit information collected by the sensor to the processor;

[0028] A radio frequency circuit, electrically connected to the processor, for implementing wireless communication;

[0029] A switch module, electrically connected to the processor, for implementing wired communication;

[0030] The DC-to-DC circuit is electrically connected to the intrinsically safe power supply input into the flameproof cavity and the processor respectively, and is used to supply the intrinsically safe power supply input into the flameproof cavity to the processor.

[0031] Furthermore, the DC-to-DC circuit has two paths, one of which is used to process the intrinsically safe power supply to power the processor and the RF circuit, and the other is used to process the intrinsically safe power supply to power the first input circuit, the first output circuit, the RS485 circuit, the second output circuit, the second input circuit and the switch module.

[0032] Furthermore, the two DC-to-DC circuits are electrically isolated by using an optocoupler chip.

[0033] Furthermore, it also includes a power generation assembly, there are multiple power generation assemblies, and the multiple power generation assemblies are electrically connected to the multiple sub-controllers in a one-to-one correspondence, and are used to convert the mechanical kinetic energy of the belt movement into electrical energy to supply power to the sub-controllers; the power generation assembly includes:

[0034] The rolling assembly is used to be close to the belt, and the movement of the belt drives the rolling assembly to rotate;

[0035] A generator is drivingly connected to the rolling assembly, and the rotation of the rolling assembly drives the generator to rotate and generate electricity;

[0036] A voltage stabilizer is connected to the generator and is used to stabilize the output current of the generator.

[0037] Furthermore, the rolling assembly comprises:

[0038] Fixed bracket;

[0039] An elastic member, one end of which is arranged on the fixing bracket;

[0040] The roller is rotatably arranged at the other end of the elastic member, and the elastic member is used for squeezing the roller to be close to the belt.

[0041] The working principle of the present invention is as follows: the main controller controls the operation of the belt conveyor drive member through the first output circuit and the second output circuit provided by the main controller, so that the belt conveyor drive member drives the belt conveyor to operate, and communicates with each sub-controller along the belt conveyor through the WiFi-Mesh network. The first input circuit and the second input circuit are used to connect sensors and emergency stop switches that are relatively close. The network port and the optical fiber port are used to connect to the network to achieve connection with the remote server.

[0042] The sub-controller uses the kinetic energy generated by the belt movement of the conveyor belt to generate electricity through the power generation component to charge the battery inside the sub-controller. The wireless network and self-generation characteristics avoid the use of power supply and communication cables, making the product realize the function of wireless deployment.

[0043] The sub-controller is connected to the sensor and the emergency stop switch. The sensor collects the operating information of the belt conveyor in real time, such as temperature, weight, and belt tearing, and transmits the data to the main controller for analysis through the WiFi-Mesh network. When the belt of the belt conveyor is abnormal or an accident occurs, the nearby operator will immediately press the emergency stop switch. After the sub-controller detects that the emergency stop switch has been pressed, it notifies the main controller through the WiFi-Mesh network to control the belt conveyor to stop working.

[0044] The main controller and sub-controllers communicate through the WiFi-Mesh network. This communication method does not require multiple wireless routers to be deployed along the belt conveyor to achieve the networking function of all sub-controllers. Each sub-controller can act as a wireless router while serving as a terminal device to provide WiFi networks for other sub-stations.

[0045] Compared with the prior art, the present invention has the following beneficial effects:

[0046] The wireless communication method of WiFi-Mesh networking is adopted between the main controller and the sub-controllers and between the sub-controllers of the present invention. The WiFi-Mesh networking technology avoids the situation that each sub-controller needs to access the WiFi network, which greatly reduces the occupation of static IP address resources underground.

[0047] By using the WiFi-mesh networking function, the sensors and control switches along the belt conveyor can be wirelessly connected to the main controller of the belt conveyor to collect belt operation data and upload emergency stop signals. When there is no WiFi coverage in a certain area, the sub-controllers here can be connected to other sub-controllers through the Mesh network, and finally realize the interconnection with the main controller.

[0048] In actual use, no cable connection is required, and no complicated wiring is required, so it is easy to use.

[0049] Furthermore, the control device proposed by the present invention does not require interaction between switches, thereby greatly reducing the overall size of the device and being more suitable for use in mines with limited internal space. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0051] Figure 2 is a schematic diagram of the external structure of the main controller of the present invention;

[0052] Figure 3 It is a schematic diagram of the internal structure of the main controller of the present invention;

[0053] Figure 4 It is a structural module diagram of the control panel of the present invention;

[0054] Figure 5 It is a schematic diagram of the intrinsically safe power supply isolation structure of the present invention;

[0055] Figure 6 This is the connection method between the switch module and the processor of the present invention;

[0056] Figure 7 It is a schematic structural diagram of the power generation assembly of the present invention.

[0057] Among them, 1-main controller, 10-partition, 100-wall terminal, 11-housing, 111-explosion-proof chamber, 112-intrinsically safe chamber, 1121-display screen, 1122-button, 1123-plug, 12-control board, 13-power supply assembly, 131-wide voltage switching power supply, 132-first intrinsically safe power supply, 133-second intrinsically safe power supply, 14-solid-state relay, 2-sub-control system, 20-sensor, 3-sub-controller, 4-power generation assembly, 41-rolling assembly, 411-fixed bracket, 412-elastic part, 413-roller, 42-generator, 43-voltage stabilizer, 5-belt conveyor drive, 6-belt conveyor, 60-emergency stop switch. DETAILED DESCRIPTION

[0058] The following is combined with Figure 1 To the attached Figure 7, the specific embodiments of the present invention are described in detail. In the description of the present invention, it should be understood that the terms "center", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention.

[0059] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features; in the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0060] It should be noted that:

[0061] Wi-Fi-Mesh networking is a wireless mesh network technology. Wifi-Mesh is a multi-hop network, which is a new wireless network technology that is completely different from traditional wireless networks. In a wireless mesh network, any wireless device node can act as an AP and a router at the same time. Each node in the network can send and receive signals, and each node can communicate directly with one or more peer nodes.

[0062] RS485: Recommended Standard 485, or 485 bus, is a standard interface and signal transmission method at the physical communication layer, and belongs to the first level of the open system interconnection model. It is designed to expand the physical functions of the RS-232 interface, and the network composed of this interface is generally half-duplex mode, using two-wire and shielded twisted pair transmission to form a bus topology. It is commonly used in industries such as industry, automation, automobiles, and building management.

[0063] Example

[0064] like Figure 1 The mining belt conveyor control device shown includes a main controller 1 and a sub-control system 2.

[0065] The main controller 1 is used to connect with the belt conveyor driving member 5 and control the belt conveyor driving member 5 to drive the belt conveyor 6 to operate. In this embodiment, the belt conveyor driving member 5 adopts a motor.

[0066] There are multiple sub-control systems 2, and the multiple sub-control systems are arranged at intervals along the belt of the belt conveyor 6; each sub-control system includes a sensor 20, an emergency stop switch 60 and a sub-controller 3, the sensor 20 is used to collect the operation information of the belt conveyor 6; the emergency stop switch 60 is used to receive the control instructions of the operator to realize the conversion control of the switch state; the sub-controller 3 is connected to the sensor 20 and the emergency stop switch 60 respectively, and is used to receive the operation information collected by the sensor 20 connected thereto and the switch state of the emergency stop switch 60 connected thereto; the main controller 1 and each sub-controller 3 and each sub-controller 3 are connected through WiFi-Mesh network wireless communication.

[0067] The emergency stop switch 60 is directly connected to the sub-controller 3. When the belt of the conveyor belt 6 is abnormal or in an accident, the nearby operator will immediately press the emergency stop switch 60. After the sub-controller 3 detects that the emergency stop switch 60 is pressed, it notifies the main controller 1 through the Wi-Fi-Mesh network to control the conveyor belt drive 5 to stop working. The sensor 20 is directly connected to the sub-controller 3. The sensor 20 collects the operation information of the conveyor belt 6 in real time, and specifically can collect the temperature, weight, belt tearing and other information of the conveyor belt 6 during operation. The sensor 20 can specifically adopt any one or more of a temperature sensor, a vibration sensor, an ultrasonic distance sensor, a speed sensor and a pressure sensor. This embodiment adopts a temperature sensor, an ultrasonic distance sensor and a pressure sensor.

[0068] Preferably, Figure 2 , Figure 3 As shown, the main controller 1 includes a shell 11, a control board 12, a power supply assembly 13 and a solid-state relay 14. The interior of the shell 11 is divided into a flameproof chamber 111 and an intrinsically safe chamber 112 by a partition 10, and a through-wall terminal 100 is provided on the partition 10. The control board 12 is arranged in the intrinsically safe chamber 112, and is connected to each sub-controller 3 for communication, and is used to run the mining system to perform various detection, communication and control tasks. A terminal row is provided on the control board 12, and the terminal row is used to connect the control board 12 to the through-wall terminal 100. The power supply assembly 13 is arranged in the flameproof chamber 111, connected to the through-wall terminal 100, and is used to supply power to the control board 12. The solid-state relay 14 is arranged in the flameproof chamber 111, connected to the control board 12, and is used as a non-safety switch output.

[0069] Preferably, Figure 2 As shown, the side wall of the intrinsically safe chamber 112 is provided with a display screen 1121, a button 1122 and a plug 1123. The display screen 1121 is connected to the control panel 12 for displaying various status information. The button 1122 is connected to the control panel 12 for receiving user instructions and setting relevant parameters. The plug 1123 is connected to the control panel 12, and the plug 1123 is an aviation plug for connecting control lines, specifically connecting antennas, network cables, optical fibers and other control lines.

[0070] Preferably, Figure 3 As shown, the power supply assembly 13 includes a wide-voltage switching power supply 131 and a first intrinsically safe power supply 132 .

[0071] The wide voltage switching power supply 131 is connected to an external power supply, and is used to convert an external 60V-265V AC power into a 24V DC power. The first intrinsically safe power supply 132 is electrically connected to the wide voltage switching power supply 131 and the control board 12, and is used to convert the 24V DC power into a 12V intrinsically safe power supply and supply power to the control board 12.

[0072] Preferably, the power supply assembly 13 is also used for external output, and the power supply assembly 13 further includes a second intrinsically safe power supply 133. The second intrinsically safe power supply 133 is used to convert 24V direct current into a 24V intrinsically safe power supply for external output.

[0073] There are three first intrinsically safe power supplies 132, two of which are connected to the control board 12, and the other is used for external output.

[0074] It should be noted that: Figure 2 As shown, a bell mouth is also provided on the outer side wall of the explosion-proof chamber 111, and the bell mouth is used to connect the power line and the output line of the solid-state relay 14.

[0075] Preferably, Figure 4 As shown, the control board includes a processor, a first input circuit, a first output circuit, an RS485 circuit, a second output circuit, a second input circuit, a radio frequency circuit, a switch module, and a DC-to-DC circuit.

[0076] The processor uses a Mine Hong processor, which is used to run the Mine Hong system. It is responsible for electrically connecting with other circuits on the control board, collecting the values ​​of various input quantities, and controlling the corresponding output results of other output quantities after obtaining the results through calculations, so as to realize a complete set of control processes.

[0077] The first input circuit is a switch quantity input circuit, which has 13 channels. The 13 first input circuits are electrically connected to the processor and the external switch quantity input device respectively, and are used to receive the switch quantity of the external switch quantity input device, such as the switch quantity signal of the proximity switch, the emergency stop switch 60 and the click operation status switch.

[0078] The first output circuit is a switch output circuit having 6 channels, which are electrically connected to the processor and the first external device respectively, and are used to transmit control signals to the first external device, such as brakes, warning lights, valves and other devices.

[0079] The RS485 circuit is electrically connected to the processor and the display screen 1121 respectively, and is used for communication connection between the processor and the display screen 1121.

[0080] The second output circuit is a 4mA-20mA output circuit, which has two channels. The two second output circuits are electrically connected to the processor and the second external device respectively, and are used to transmit control signals to the second external device, such as variables such as motor speed and hydraulic rod length.

[0081] The second input circuit is a 4mA-20mA input circuit, which has three paths. The three paths of the second input circuit are electrically connected to the processor and the sensor 20 respectively, and are used to transmit the information collected by the sensor 20 to the processor.

[0082] The radio frequency circuit is electrically connected to the processor for wireless communication. The radio frequency circuit includes a Bluetooth circuit and a Wi-Fi circuit. The Wi-Fi circuit can be used to access the Internet and other sub-controllers, and the Bluetooth circuit can be used to connect to mobile phones or other wireless sensors.

[0083] The switch module is electrically connected to the processor for wired communication, and a reliable network connection can be achieved using a network cable or optical fiber.

[0084] The DC-DC circuit is electrically connected to the intrinsically safe power supply input into the flameproof chamber 111 and the processor, respectively, and is used to supply the intrinsically safe power supply input into the flameproof chamber 111 to the processor. The DC-DC circuit is used to convert the two 12V intrinsically safe power supplies input into the flameproof chamber 111 into 5V and 3.3V, respectively, to power various functional modules on the control board.

[0085] By running the Kuanghong operating system on the processor, the processor has the ability to access the soft bus. The soft bus can realize distributed data management and dynamic interaction of resources, and optimize the interaction mode of underground equipment and improve operating efficiency by using near-field device perception and interconnection, distributed database and unified data protocol. At the same time, the device can also realize the interconnection and unified management of equipment from different manufacturers through the soft bus function.

[0086] Use processors equipped with the Kuanghong operating system to improve the localization level of equipment, realize distributed data management and dynamic interaction of resources through the soft bus, and improve underground work efficiency.

[0087] Preferably, due to the complex functions and numerous chips of the control board, the overall power consumption is high and a single intrinsically safe power supply cannot be used for power supply. If the intrinsically safe power supply is not used, the control board needs to be placed in the flameproof chamber 111 to meet the explosion-proof requirements, which will greatly increase the overall volume and weight. The use of two intrinsically safe power supplies for power supply can avoid this situation. Figure 4 , Figure 5As shown, there are two DC-DC circuits, one of which is used to process the intrinsically safe power supply to supply power to the processor and the radio frequency circuit, and the other is used to process the intrinsically safe power supply to supply power to the first input circuit, the first output circuit, the RS485 circuit, the second output circuit, the second input circuit and the switch module. The intrinsic safety of the core components of the product is achieved by multi-channel intrinsically safe power supply, which reduces the proportion of the equipment flameproof chamber 111 and greatly reduces the size and weight of the equipment. Among them, the control board 12 also includes a solid-state relay control circuit, which is electrically connected to the processor, and the solid-state relay control circuit is connected to the solid-state relay 14 for controlling the solid-state relay 14.

[0088] Preferably, the two DC-to-DC circuits are electrically isolated using an optocoupler chip.

[0089] It should be noted that: Figure 6 As shown, a switch module is integrated on the main control board to connect the serial port of the processor with the serial port of the switch module to realize the wired networking function of the processor. This solution can effectively reduce the layout of switches inside the housing 11, free up space for a switch, reduce a section of network cable and two network port circuits, avoid the interconnection of network cables inside the device, and reduce the overall size of the device.

[0090] Preferably, Figure 7 As shown, it also includes a power generation assembly 4, and there are multiple power generation assemblies 4. The multiple power generation assemblies 4 are electrically connected to the multiple sub-controllers 3 in a one-to-one correspondence, and are used to convert the mechanical kinetic energy of the belt movement into electrical energy for supplying power to the sub-controllers 3. The power generation assembly 4 includes a rolling assembly 41, a generator 42, and a voltage stabilizer 43. The rolling assembly 41 is used to be close to the belt, and the movement of the belt drives the rolling assembly 41 to rotate. The generator 42 is connected to the rolling assembly 41 in a transmission manner, and the rotation of the rolling assembly 41 drives the generator 42 to rotate and generate electricity. The voltage stabilizer 43 is connected to the generator 42 and is used to stabilize the output current of the generator 42.

[0091] Preferably, Figure 7 As shown, the rolling assembly 41 includes a fixed bracket 411, an elastic member 412 and a roller 413. One end of the elastic member 412 is disposed on the fixed bracket 411. The roller 413 is rotatably disposed at the other end of the elastic member 412, and the elastic member 412 is used to squeeze the roller 413 to be close to the belt.

[0092] The working principle of the above embodiment is:

[0093] The main controller 1 controls the operation of the belt conveyor drive 5 through its own first output circuit and second output circuit, so that the belt conveyor drive 5 drives the belt conveyor 6 to operate, and communicates with each sub-controller 3 along the belt conveyor 6 through the WiFi-Mesh network. The first input circuit and the second input circuit are used to connect the sensor 20 and the emergency stop switch 60 that are relatively close. The network port and the optical fiber port are used to connect to the network to achieve connection with the remote server.

[0094] The sub-controller 3 generates electricity by using the kinetic energy generated by the belt movement of the belt conveyor 6 through the power generation component 4 to charge the battery inside the sub-controller 3. The use of power supply and communication cables is avoided through the characteristics of wireless network and self-generation, so that the product can realize the function of wireless deployment.

[0095] The sub-controller 3 is connected to the sensor 20 and the emergency stop switch 60. The sensor 20 collects the operating information of the belt conveyor in real time, such as the temperature, weight, and belt tearing, and transmits the data to the main controller 1 for analysis through the WiFi-Mesh network. When the belt of the belt conveyor 6 is abnormal or has an accident, the nearby operator will immediately press the emergency stop switch 60. After the sub-controller 3 detects that the emergency stop switch 60 has been pressed, it notifies the main controller 1 through the WiFi-Mesh network to control the belt conveyor 6 to stop working.

[0096] The main controller 1 and the sub-controller 3 communicate through the Wi-Fi-Mesh network. This communication method can realize the networking function of all sub-controllers 3 without arranging multiple wireless routers along the belt conveyor 6. Each sub-controller 3 can act as a wireless router while serving as a terminal device to provide a Wi-Fi network for other sub-stations.

[0097] The specific models of the above electronic components are not specially specified, and ordinary products available on the market can be selected as long as they can meet the use requirements of the present invention.

[0098] The specific embodiments described above further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific embodiment of the present invention and does not limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention are included in the protection scope of the present invention.

Claims

1. A mining belt conveyor control device, It is characterized in that include: A main controller (1) is used to connect to a belt conveyor driving member (5) and control the belt conveyor driving member (5) to drive the belt conveyor (6) to operate; There are multiple sub-control systems (2), and the multiple sub-control systems are arranged at intervals along the belt of the belt conveyor (6); each sub-control system includes: a sensor (20) for collecting operation information of the belt conveyor (6); The emergency stop switch (60) is used to receive control instructions from an operator to realize the switching control of the switch state; the sub-controller (3) is respectively connected to the sensor (20) and the emergency stop switch (60) and is used to receive the operation information collected by the sensor (20) connected thereto and the switch state of the emergency stop switch (60) connected thereto; the main controller (1) and each sub-controller (3) and each sub-controller (3) are connected to each other through WiFi-Mesh networking wireless communication.

2. A mining belt conveyor control device as claimed in claim 1, It is characterized in that The main controller (1) comprises: A shell (11), the interior of which is divided into a flameproof chamber (111) and an intrinsically safe chamber (112) by a partition (10); A control panel (12) is arranged in the intrinsically safe chamber (112) and is communicatively connected with each sub-controller (3); A power supply component (13) is disposed in the flameproof chamber (111) and connected to the control panel (12) for supplying power to the control panel (12); The solid-state relay (14) is arranged in the flameproof chamber (111), connected to the control board (12), and used as a non-safety switch quantity output.

3. A mining belt conveyor control device as claimed in claim 2, It is characterized in that The side wall of the intrinsically safe chamber (112) is provided with a display screen (1121), a button (1122) and a plug (1123); The display screen (1121) is connected to the control panel (12) and is used to display various status information; The button (1122) is connected to the control panel (12) and is used to receive user instructions and set relevant parameters; The plug (1123) is connected to the control board (12) and is used to connect the control circuit.

4. A mining belt conveyor control device as claimed in claim 2, It is characterized in that The power supply component (13) comprises: A wide-voltage switching power supply (131), connected to an external power supply, for converting external alternating current into direct current; The first intrinsically safe power supply (132) is electrically connected to the wide-voltage switching power supply (131) and the control board (12) respectively, and is used to convert direct current into an intrinsically safe power supply and supply power to the control board (12).

5. A mining belt conveyor control device as claimed in claim 4, It is characterized in that The power supply component (13) is also used for external output, and the power supply component (13) further comprises a second intrinsically safe power supply (133); the second intrinsically safe power supply (133) is connected to the wide-voltage switching power supply (131) and is used to convert direct current into an intrinsically safe power supply for external output.

6. A mining belt conveyor control device as claimed in claim 5, It is characterized in that The control panel (12) comprises: processor; The first input circuit is electrically connected to the processor and the external switch quantity input device, respectively, and is used to receive the switch quantity of the external switch quantity input device; A first output circuit is electrically connected to the processor and the first external device, respectively, and is used to transmit a control signal to the first external device; RS485 circuit, electrically connected to the processor and the display screen (1121) respectively, for communication connection between the processor and the display screen (1121); A second output circuit is electrically connected to the processor and the second external device, respectively, and is used to transmit a control signal to the second external device; A second input circuit is electrically connected to the processor and the sensor (20) respectively, and is used to transmit information collected by the sensor (20) to the processor; A radio frequency circuit, electrically connected to the processor, for implementing wireless communication; A switch module, electrically connected to the processor, for implementing wired communication; The DC-to-DC circuit is electrically connected to the intrinsically safe power supply input into the flameproof chamber (111) and the processor respectively, and is used to supply the intrinsically safe power supply input into the flameproof chamber (111) to the processor.

7. A mining belt conveyor control device as claimed in claim 6, It is characterized in that There are two DC-to-DC circuits, one of which is used to process intrinsically safe power to supply power to the processor and the radio frequency circuit, and the other DC-to-DC circuit is used to process intrinsically safe power to supply power to the first input circuit, the first output circuit, the RS485 circuit, the second output circuit, the second input circuit and the switch module.

8. A mining belt conveyor control device as claimed in claim 7, It is characterized in that The two DC-to-DC circuits are electrically isolated by using an optocoupler chip.

9. A mining belt conveyor control device as claimed in claim 1, It is characterized in that It also includes a power generation assembly (4), wherein there are a plurality of power generation assemblies (4), and the plurality of power generation assemblies (4) are electrically connected to the plurality of sub-controllers (3) in a one-to-one correspondence, and are used to convert the mechanical kinetic energy of the belt movement into electrical energy for supplying power to the sub-controllers (3); the power generation assembly (4) includes: The rolling assembly (41) is used to be in close contact with the belt, and the movement of the belt drives the rolling assembly (41) to rotate; The generator (42) is connected to the rolling assembly (41) in a transmission manner, and the rolling assembly (41) rotates to drive the generator (42) to rotate and generate electricity; A voltage stabilizer (43) is connected to the generator (42) and is used to stabilize the output current of the generator (42).

10. A mining belt conveyor control device as claimed in claim 9, It is characterized in that The rolling assembly (41) comprises: A fixing bracket (411); An elastic member (412), one end of which is arranged on the fixing bracket (411); The roller (413) is rotatably arranged at the other end of the elastic member (412), and the elastic member (412) is used to squeeze the roller (413) to be close to the belt.

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