Centralized man-machine interaction method, device and system for mining combined feeder switch

Abstract

The invention relates to the technical field of mining equipment data communication, in particular to a mining combined feeder switch centralized man-machine interaction method, device and system. The man-machine interaction method comprises the following steps that a man-machine interface is provided through a display control device, and the man-machine interface is connected with a comprehensive protector and a camera element in each unit cavity at the same time through a communication bus and used for obtaining corresponding data information. According to the mining combined feeder switch centralized man-machine interaction method provided by the invention, the periodic data table and the non-periodic table are established, time-sharing and partition integration is carried out on the equipment data of each unit cavity, and time-sharing calling is carried out on the video image of each unit cavity, so that bandwidth occupation is effectively reduced, system efficiency is improved, and cost is reduced. The mining combined feeder switch solves the problem of information isolated island of each unit cavity of the original mining combined feeder switch, and adopts a centralized human-computer interface to display the data of all equipment, thereby being beneficial to centralized control and real-time monitoring of the running health state of the equipment.

Description

Technical Field

[0001] The present invention relates to the technical field of data communication of mining equipment, and in particular to a centralized human-computer interaction method, device and system for a mining combined feeder switch. Background Art

[0002] The existing combined feeder switches for coal mines combine single feeder switches into a whole in the form of four, six, eight or ten units. Each unit is an independent cavity with integrated protectors, circuit breakers, trolleys and camera components installed inside. A centralized control cavity is set up with switches, display control screens and button components installed inside.

[0003] Due to the limited installation space and equipment size, the size of the human-computer interaction screen of the equipment and the amount of displayable data are limited. Usually, the equipment data and image status of all units cannot be seen in the centralized control chamber, which makes it inconvenient to centrally process and display the data and images of each unit.

[0004] To meet the requirements of integration and intelligence, it is urgently necessary to integrate the operating data of each unit based on mature data communication methods such as Ethernet and industrial bus.

[0005] Based on this, the present invention aims at the problems existing in the prior art and hereby proposes a centralized human-computer interaction method, device and system for a combined feeder switch for mining, so as to better solve the problems existing in the prior art. Summary of the invention

[0006] In order to solve one of the above technical problems, the present invention provides a display control method, device and system for a combined feeder switch for mining, which integrates the data and real-time images of each unit of the combined feeder switch, reduces the number of human-computer interaction devices, combines more functions of the centralized control cavity, meets the needs of a large number of interactive functions, improves operation efficiency, and realizes centralized data transmission; the technical solution adopted is: a centralized human-computer interaction method for a combined feeder switch for mining, comprising the following steps: A human-machine interface is provided through a display control device, and the human-machine interface is simultaneously connected to the integrated protector and camera components in each unit cavity through a communication bus to obtain corresponding data information; The display control method comprises: S1: Establish the drivers of the integrated protector, camera, centralized control chamber controller, intrinsically safe keypad, thermostat, dehumidifier, partial discharge detection device, ModbusRTU server, and MobusTCP server of each unit cavity, and ensure that the upper computer human-machine interface can access the above lower computer components and equipment through the bus and network; S2: Establish middleware tables A and B for data communication. Table A stores periodic data. The human-machine interface periodically reads real-time status data from the lower computer and writes real-time control instructions. Table B stores non-periodic data. The human-machine interface reads the original parameter data from the lower computer and writes the new parameter data non-periodically according to the request conditions. This can effectively achieve data separation, decoupling and efficient transmission between the host computer and the slave computer.

[0007] S3: Centrally operate the data in the periodic data table A through data recording, interface display and control, telemetry, telesignaling and remote control data functions of the data server; and centrally operate the data in the non-periodic table B by using parameter setting and data server remote adjustment functions.

[0008] In any of the above solutions, preferably, the data records include fault records, event records, curve records and historical records.

[0009] In any of the above solutions, it is preferred that the data server is a ModbusTCP server or a ModbusRTU server.

[0010] In any of the above solutions, preferably, the display control method further comprises the following steps: After the upper computer human-machine interface obtains the key value of the intrinsically safe button through the periodic data table A, it realizes the logical operation framework by constructing a three-level menu and a two-level interface. The two-level interface realizes the interface and permission switching through the login and logout interface.

[0011] In any of the above solutions, preferably, in the three-level menu, the first-level menu is a page turning function, the second-level menu is a cursor moving function, and the third-level menu is a parameter setting function.

[0012] The two-level interface is divided into a monitoring interface and a setting interface; the monitoring interface is mainly used for data monitoring, curve analysis, data recording, instructions, diagnosis and debugging, and version tracing; the setting interface is mainly used for time adjustment, screen setting, lower computer parameter setting, and authority management.

[0013] The display content and control functions of the monitoring interface come from the periodic data table A, and the display content and parameter settings of the setting interface come from the non-periodic data table B.

[0014] In any of the above schemes, preferably, the display control method also includes: the upper computer human-machine interface integrates an overview of each unit device in the "main interface" or "home page" of the monitoring interface, and by operating the keys with partitioning function, the detailed data and real-time images of each unit pop up, and according to the interface prompts at this time, the opening, closing, swinging in, swinging out, leakage test, and resetting operations can be performed, and the unit detailed interface and camera are automatically closed when no operation is performed.

[0015] The above operation can realize the rapid switching between the overall system data and the detailed data of each unit, and effectively reduce the impact of the camera code stream data on the performance of the human-machine interface.

[0016] The present invention also provides a centralized human-machine interaction device for a combined feeder switch for mining, the human-machine interaction device is used to provide a human-machine interaction interface, and the human-machine interaction device includes: a display screen and an intrinsically safe keyboard; the display screen adopts a B / S architecture and is composed of a power management module, a self-developed display control module, and a liquid crystal screen; wherein the power module provides intrinsically safe power for other modules; the display control module has an RS232 interface for connecting intrinsically safe buttons, an RS485 interface as a ModbusRTU server, a USB interface for connecting a mouse and a keyboard and for temporary user input, network port 1 as a ModbusTCP server, network port 2 for establishing an internal control network, and network port 3 for establishing an internal video network.

[0017] In any of the above solutions, it is preferred that the intrinsically safe keyboard adopts a communication key module with a functional partition design, which consists of three parts: a digital area, a navigation area, and a control area: In the "main interface", the numeric keys in the numeric area are used to pop up the detailed unit interface, and in other interfaces, the numeric area is used to enter values; The navigation keys in the navigation area are used for interface switching, cursor movement, parameter setting, and implementation of the logic operation framework function; The function keys in the control area are assigned different functions in different interfaces. For example, when the detailed unit interface pops up on the "main interface", the function keys correspond to closing, opening, swinging out, swinging in, leakage test, resetting and other functions, and there are corresponding button prompts on the interface.

[0018] The present invention also provides a centralized human-machine interactive control system for a combined feeder switch for mining, which adopts a dual-network separation design of a control network and a video transmission network; The control network is composed of network interface components such as PLC controller, electric energy meter, gateway, wireless temperature collector, etc. and serial interface components such as comprehensive protection and trolley controller; Among them, the components of the serial port interface are converted into the network port interface through a multi-serial port protocol gateway, and all serial port components use the factory default communication parameters.

[0019] In any of the above schemes, it is preferred that the video network is composed of cameras in the corresponding units, and the cameras support dual stream output; wherein, the high-resolution stream is transmitted to a remote hard disk burner for video storage and analysis, and the low-resolution stream is transmitted to a display screen, so as to realize linkage with real-time images when performing operations such as opening and closing the switch, and chassis vehicle entry and exit on site.

[0020] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention integrates the data and real-time images of each unit of the combined feed switch, reduces the number of human-computer interaction devices, combines more functions in the centralized control cavity, meets the needs of a large number of interactive functions, improves operating efficiency, and realizes centralized data transmission.

[0021] 2. The centralized human-computer interaction method for the combined feeder switch for mining provided by the present invention integrates the equipment data of each unit cavity by time-sharing and partitioning through the establishment of periodic data tables and non-periodic tables, and calls the video images of each unit cavity by time-sharing, thereby effectively reducing bandwidth occupancy and improving system efficiency. It solves the problem of information islands in each unit cavity of the original combined feeder switch for mining, and adopts a centralized human-computer interface to display the data of all devices, which is beneficial to centralized control and real-time monitoring of the health status of equipment operation.

[0022] 3. The centralized human-computer interaction device for the combined feeder switch for mining provided by the present invention constructs a display control framework by combining a display screen, a multi-partition intrinsically safe keyboard and an interaction method, realizes separation and decoupling from the lower computer equipment data, and is suitable for the rapid transplantation and construction of human-computer interaction of all types of explosion-proof products, thereby improving operational efficiency, development efficiency, portability and ease of use.

[0023] 4. The centralized human-machine interactive control system for the combined feeder switch for mining provided by the present invention can transmit and upload the data of various devices in a time-sharing and partitioned manner through dual-network separation, camera dual-stream transmission, etc., thereby reducing bandwidth occupancy. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for the specific embodiments or the description of the prior art. In all the drawings, similar elements or components are generally identified by similar reference numerals. In the drawings, the elements or components are not necessarily drawn according to the actual scale.

[0025] Figure 1 It is a data table schematic diagram of the centralized human-computer interaction method for the mining combined feeder switch of the present invention.

[0026] Figure 2 The present invention is a schematic diagram of a data calling method of a centralized human-computer interaction method for a combined feeder switch for mining use.

[0027] Figure 3 The diagram is a schematic diagram of authority and interface switching of the centralized human-computer interaction method for a combined feeder switch for mining use of the present invention.

[0028] Figure 4 It is a display control framework of the centralized human-computer interaction method for the combined feeder switch for mining of the present invention.

[0029] Figure 5 The figure is a schematic diagram of the structure of the centralized human-machine interaction device of the mining combined feeder switch of the present invention.

[0030] Figure 6 The network diagram of the centralized interactive control system of the combined feeder switch for mining of the present invention is shown in FIG. DETAILED DESCRIPTION

[0031] The following is a detailed description of the embodiments of the technical solution of the present invention in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present invention. Figure 1-Figure 6 as shown in .

[0032] Embodiment 1: A centralized human-computer interaction method for a combined feeder switch for a mine, comprising the following steps: A human-machine interface is provided through a display control device, and the human-machine interface is simultaneously connected to the integrated protector and camera components in each unit cavity through a communication bus to obtain corresponding data information; The display control method comprises: S1: Establish the drivers of the integrated protector, camera, centralized control chamber controller, intrinsically safe keypad, thermostat, dehumidifier, partial discharge detection device, ModbusRTU server, and MobusTCP server of each unit cavity, and ensure that the upper computer human-machine interface can access the above lower computer components and equipment through the bus and network; S2: Establish middleware tables A and B for data communication. Table A stores periodic data. The human-machine interface periodically reads real-time status data from the lower computer and writes real-time control instructions. Table B stores non-periodic data. The human-machine interface reads the original parameter data from the lower computer and writes the new parameter data non-periodically according to the request conditions. This can effectively achieve data separation, decoupling and efficient transmission between the host computer and the slave computer.

[0033] S3: Centrally operate the data in the periodic data table A through data recording, interface display and control, telemetry, telesignaling and remote control data functions of the data server; centrally operate the data in the non-periodic table B by using parameter setting and data server remote adjustment functions.

[0034] In any of the above solutions, preferably, the data records include fault records, event records, curve records and historical records.

[0035] In any of the above solutions, it is preferred that the data server is a ModbusTCP server or a ModbusRTU server.

[0036] In any of the above solutions, preferably, the display control method further comprises the following steps: After the upper computer human-machine interface obtains the key value of the intrinsically safe button through the periodic data table A, it realizes the logical operation framework by constructing a three-level menu and a two-level interface. The two-level interface realizes the interface and permission switching through the login and logout interface.

[0037] In any of the above solutions, preferably, in the three-level menu, the first-level menu is a page turning function, the second-level menu is a cursor moving function, and the third-level menu is a parameter setting function.

[0038] The two-level interface is divided into a monitoring interface and a setting interface; the monitoring interface is mainly used for data monitoring, curve analysis, data recording, instructions, diagnosis and debugging, and version tracing; the setting interface is mainly used for time adjustment, screen setting, lower computer parameter setting, and authority management.

[0039] The display content and control functions of the monitoring interface come from the periodic data table A, and the display content and parameter settings of the setting interface come from the non-periodic data table B.

[0040] In any of the above schemes, preferably, the display control method also includes: the upper computer human-machine interface integrates an overview of each unit device in the "main interface" or "home page" of the monitoring interface, and by operating the keys with partitioning function, the detailed data and real-time images of each unit pop up, and according to the interface prompts at this time, the opening, closing, swinging in, swinging out, leakage test, and resetting operations can be performed, and the unit detailed interface and camera are automatically closed when no operation is performed.

[0041] The above operation can realize the rapid switching between the overall system data and the detailed data of each unit, and effectively reduce the impact of the camera code stream data on the performance of the human-machine interface.

[0042] Example 2: The present invention also provides a centralized human-computer interaction device for a combined feeder switch for mining, which is used to provide a human-computer interaction interface, and includes: a display screen and an intrinsically safe keyboard; the display screen adopts a B / S architecture and is composed of a power management module, an independently developed display control module, and a liquid crystal screen; wherein the power module provides intrinsically safe power for other modules; the display control module has an RS232 interface for connecting intrinsically safe buttons, an RS485 interface as a ModbusRTU server, a USB interface for connecting a mouse and a keyboard and for temporary user input, network port 1 as a ModbusTCP server, network port 2 for establishing an internal control network, and network port 3 for establishing an internal video network.

[0043] In any of the above solutions, it is preferred that the intrinsically safe keyboard adopts a communication key module with a functional partition design, which consists of three parts: a digital area, a navigation area, and a control area: In the "main interface", the numeric keys in the numeric area are used to pop up the detailed unit interface, and in other interfaces, the numeric area is used to enter values; The navigation keys in the navigation area are used for interface switching, cursor movement, parameter setting, and to realize the logic operation framework function; The function keys in the control area are assigned different functions in different interfaces. For example, when the detailed unit interface pops up on the "main interface", the function keys correspond to closing, opening, swinging out, swinging in, leakage test, resetting and other functions, and there are corresponding button prompts on the interface.

[0044] Embodiment 3: The present invention also provides a centralized human-machine interactive control system for a combined feeder switch for mining, which adopts a dual-network separation design of a control network and a video transmission network; The control network is composed of network interface components such as PLC controller, electric energy meter, gateway, wireless temperature collector, etc. and serial interface components such as comprehensive protection and trolley controller; Among them, the components of the serial port interface are converted into the network port interface through a multi-serial port protocol gateway, and all serial port components use the factory default communication parameters.

[0045] In any of the above schemes, it is preferred that the video network is composed of cameras in the corresponding units, and the cameras support dual stream output; wherein, the high-resolution stream is transmitted to a remote hard disk burner for video storage and analysis, and the low-resolution stream is transmitted to a display screen, so as to realize linkage with real-time images when performing operations such as opening and closing the switch, and chassis vehicle entry and exit on site.

[0046] It should be noted that the periodic data table A is divided into a data reading area A1 and a data writing area A2. The data in area A1 is divided into A1-1, A1-2, A1-3, A1-4, etc. on a device basis. The human-machine interface periodically reads real-time data from each lower computer (device) and writes it into area A1. The data in area A2 is divided into A2-1, A2-2, A2-3, A2-4, etc. on a device basis. The human-machine interface periodically writes the data in area A2 to the corresponding lower computer (device).

[0047] The sampling period of each device is determined based on the response time of the lower computer, the requirements of the upper computer and other conditions.

[0048] It should be noted that the non-periodic data table B is divided into B1, B2, B3, B4, etc. according to the type of the upper computer. The length of each partition is determined by the number of parameters requested by the lower computer. The first word (Bn.1) of each partition stores the device number, and the second word (Bn.2) stores the operation instruction, including three instructions: no operation (0), upload (1), and download (2). Upload and download are inching operations to reduce bandwidth usage. The data starting from the third word (Bn.3) stores the parameters that the lower computer needs to set. Only one operation can be performed on the same type of device at the same time.

[0049] For example, B1.1=3, B1.2=2, B1.3~B1.7=1-5, that is, the download operation is performed on the third device of the B1 class device, and data 1-5 are written to the specified area of ​​the lower computer.

[0050] It should be noted that: Figure 2 As shown, all data operations of the display control method are read and written from the periodic table A and the non-periodic table B, including the update and setting of the database, communication server, interface elements, fault filtering, etc.

[0051] It should be noted that: Figure 3-Figure 4 As shown, the display control method constructs a display control framework, which includes permission switching, interface switching, multi-level menus, parameter settings, parameter limits, etc. The permission switching and interface are performed through the n+1th login and logout interface. After successful login, the parameter setting interface 1~n is switched, and after successful logout, the monitoring interface 1~n is switched. The data display, control instructions, etc. of each interface of the monitoring interface operate the content in the periodic data table A, and the parameter settings, display contents, etc. of each interface of the setting interface operate the content in the non-periodic data table B. The system constructs a three-level menu mode, in which the interface switching (including the monitoring interface, setting interface, and login interface) belongs to the first-level menu, the cursor movement in the interface belongs to the second-level menu, and the parameter setting selected by the cursor belongs to the third-level menu. The three-level menu is switched through the up, down, left, and right direction keys, and the confirmation and cancel keys.

[0052] It should be noted that: Figure 5 As shown, the present invention is a centralized human-computer interaction device for a combined feeder switch for mining, mainly comprising 1 display screen and 2 intrinsically safe buttons, wherein 1 comprises an intrinsically safe power management module, a display control module, a liquid crystal display screen and other components, wherein the display control module has RS232, RS485, USB, network port 1, network port 2, network port 3 and other interfaces, RS232 is used to connect an intrinsically safe keyboard, RS485 is used for a serial port data upload interface, USB is used to connect an external mouse or keyboard, and perform operations such as Chinese input, program update, and database export, network port 1 is used for network port data upload, remote diagnosis and other functions, network port 2 is used to connect to an internal control network, and network port 3 is used to connect to an internal camera network. Among them, 2 is an intrinsically safe button consisting of three areas: digital area, navigation area, and control area: the digital area has the functions of numerical input and device number reuse, which corresponds to the device number function in the monitoring interface and the numerical input function in the setting interface; the navigation area is used to build a display control framework to realize functions such as interface page turning, cursor movement, parameter setting, multi-level menu switching, and authority switching; the control area has different control functions according to prompts in different interfaces to update the instruction data in the periodic table A.

[0053] It should be noted that: Figure 6 As shown, the network schematic diagram of a centralized human-machine interactive control system for a combined feeder switch for mining of the present invention is divided into two VLANs through a switch, VLAN1 is used to build an internal control network, multiple gateways, wireless temperature collectors, electric meters, PLC controllers, etc. are connected together, and the equipment data of each sub-cavity unit, such as the integrated protector, trolley controller, electric energy meter, wireless temperature collector, etc., and the equipment data of the control cavity unit, such as the PLC controller, partial discharge monitor, dehumidification controller, etc., are connected to the display screen through VLAN1; VLAN2 is used to build an internal video network, and the camera of each sub-cavity unit is connected to the display screen through VLAN2. The system has two optical fibers or two network ports to the outside, one for data remote transmission and the other for video remote transmission.

[0054] In summary, it can be seen that the present invention integrates the data and real-time images of each unit of the combined feed switch, reduces the number of human-computer interaction devices, combines more functions in the centralized control cavity, meets the needs of a large number of interactive functions, improves operating efficiency, and realizes centralized data transmission.

[0055] In the centralized human-computer interaction method of the combined feeder switch for mines, by establishing periodic data tables and non-periodic tables, the equipment data of each unit cavity is integrated in time and partition, and the video image of each unit cavity is called in time, which effectively reduces the bandwidth occupancy and improves the system efficiency. The problem of information islands in each unit cavity of the original combined feeder switch for mines is solved. The centralized human-computer interface is used to display the data of all devices, which is conducive to centralized control and real-time monitoring of the health status of equipment operation; in the centralized human-computer interaction device of the combined feeder switch for mines, a display control framework is constructed by combining the display screen, multi-partition intrinsically safe keyboard and interaction method to achieve separation and decoupling from the lower computer equipment data, which is suitable for the rapid transplantation and construction of human-computer interaction of all types of explosion-proof products, and improves the operation efficiency, development efficiency, portability and ease of use; the human-computer interaction control system, through dual network separation, camera dual stream transmission, etc., aggregates and transmits and uploads the data of multiple devices in time and partition, reducing bandwidth occupancy.

[0056] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that the technical solutions described in the above embodiments may still be modified, or some or all of the technical features may be replaced. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention. For those skilled in the art, any replacement, improvement or change made to the implementation mode of the present invention falls within the protection scope of the present invention.

[0057] The matters not described in detail in the present invention are all known technologies to those skilled in the art.

Claims

1. A centralized human-computer interaction method for a combined feeder switch for a mine, characterized in that: The steps include: A human-machine interface is provided through a display control device, and the human-machine interface is simultaneously connected to the integrated protector and camera components in each unit cavity through a communication bus to obtain corresponding data information; The display control method comprises: S1: Establish the drivers of the integrated protector, camera, centralized control chamber controller, intrinsically safe keypad, thermostat, dehumidifier, partial discharge detection device, ModbusRTU server, and MobusTCP server of each unit cavity, and ensure that the upper computer human-machine interface can access the above lower computer components and equipment through the bus and network; S2: Establish middleware tables A and B for data communication. Table A stores periodic data. The human-machine interface periodically reads real-time status data from the lower computer and writes real-time control instructions. Table B stores non-periodic data. The human-machine interface reads the original parameter data from the lower computer and writes the new parameter data non-periodically according to the request conditions. S3: Centrally operate the data in the periodic data table A through data recording, interface display and control, telemetry, telesignaling and remote control data functions of the data server; and centrally operate the data in the non-periodic table B by using parameter setting and data server remote adjustment functions.

2. A centralized human-computer interaction method for a combined feeder switch for mining use according to claim 1, characterized in that: in, Data records include fault records, event records, curve records and historical records.

3. A centralized human-computer interaction method for a combined feeder switch for mining use according to claim 2, characterized in that: in, Data server ModbusTCP server, ModbusRTU server.

4. A centralized human-computer interaction method for a combined feeder switch for mining use according to claim 3, characterized in that: The display control method further comprises the following steps: After the upper computer human-machine interface obtains the key value of the intrinsically safe button through the periodic data table A, it realizes the logical operation framework by constructing a three-level menu and a two-level interface. The two-level interface realizes the interface and permission switching through the login and logout interface.

5. A centralized human-computer interaction method for a combined feeder switch for mining use according to claim 4, characterized in that: in, The first level menu in the three-level menu is for page turning, the second level menu is for cursor movement, and the third level menu is for parameter setting. The two-level interface is divided into a monitoring interface and a setting interface; the monitoring interface is mainly used for data monitoring, curve analysis, data recording, instructions, diagnosis and debugging, and version tracing, and the setting interface is mainly used for time adjustment, screen setting, lower computer parameter setting, and authority management; The display content and control functions of the monitoring interface come from the periodic data table A, and the display content and parameter settings of the setting interface come from the non-periodic data table B.

6. A centralized human-computer interaction method for a combined feeder switch for mining use according to claim 5, characterized in that: The display control method also includes: the upper computer human-machine interface integrates an overview of each unit device in the "main interface" or "home page" of the monitoring interface, and by operating the keys with partitioning functions, the detailed data and real-time images of each unit are popped up, and according to the interface prompts at this time, the opening, closing, swinging in, swinging out, leakage test, and reset operations can be performed, and the unit detailed interface and camera are automatically closed when no operation is performed.

7. A centralized human-machine interaction device for a combined feeder switch for mining, the human-machine interaction device is used to provide a human-machine interaction interface, characterized in that: The human-computer interaction device includes: a display screen and an intrinsically safe keyboard; the display screen adopts a B / S architecture and is composed of a power management module, a self-developed display control module, and a liquid crystal screen; wherein the power module provides intrinsically safe power for other modules; the display control module has an RS232 interface for connecting intrinsically safe buttons, an RS485 interface as a ModbusRTU server, a USB interface for connecting a mouse and a keyboard and for temporary user input, network port 1 as a ModbusTCP server, network port 2 for establishing an internal control network, and network port 3 for establishing an internal video network.

8. A centralized human-machine interaction device for a combined feeder switch for mining use according to claim 7, characterized in that: The intrinsically safe keyboard adopts a communication key module with a functional partition design, which consists of three parts: digital area, navigation area, and control area: In the "main interface", the numeric keys in the numeric area are used to pop up the detailed unit interface, and in other interfaces, the numeric area is used to enter values; The navigation keys in the navigation area are used for interface switching, cursor movement, parameter setting, and implementation of the logic operation framework function; The function keys in the control area are assigned different functions in different interfaces. For example, when the detailed unit interface pops up on the "main interface", the function keys correspond to closing, opening, swinging out, swinging in, leakage test, reset and other functions, and there are corresponding button prompts on the interface.

9. A centralized human-machine interactive control system for a combined feeder switch for mining, characterized in that: Adopt dual network separation design of control network and video transmission network; The control network is composed of network interface components such as PLC controller, electric energy meter, gateway, wireless temperature collector, etc. and serial interface components such as comprehensive protection and trolley controller; Among them, the components of the serial port interface are converted into the network port interface through a multi-serial port protocol gateway, and all serial port components use the factory default communication parameters.

10. A centralized human-machine interactive control system for a combined feeder switch for mining use according to claim 9, characterized in that: The video network is composed of cameras in the corresponding units, and the cameras support dual stream output; among them, the high-resolution stream is transmitted to the remote hard disk burner for video storage and analysis, and the low-resolution stream is transmitted to the display screen to realize the linkage of real-time images when performing on-site operations such as opening and closing the switch, and chassis vehicle entry and exit.

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