Coal mine fully-mechanized coal mining and excavating system and network control method thereof

Abstract

The invention relates to the technical field of coal mine fully-mechanized coal mining and fully-mechanized excavation, and discloses a coal mine fully-mechanized coal mining and fully-mechanized excavation system and a network control method thereof.The coal mine fully-mechanized coal mining and fully-mechanized excavation system comprises a plurality of network transmission modules which are in communication connection, and each network transmission module comprises a TSN exchange unit, a plurality of support units and a plurality of control units; the network control method is applied to a TSN switching unit, and comprises the following steps: receiving data streams of a control unit and other TSN switching units connected with the control unit; determining the transmission priority of the data stream according to the type of the data stream; determining a gating state of each type of data flow based on the transmission priority through a gating list; and transmitting the various data streams to a superior device through a preset time window in sequence, so that the superior device preferentially acquires the data stream with the highest transmission priority. According to the coal mine fully-mechanized coal mining and excavating system and the network control method thereof, common network transmission of different data streams is achieved, network resources are reasonably distributed, and the bandwidth requirement of the data stream with the highest transmission priority is preferentially guaranteed.

Description

Technical Field

[0001] The present application relates to the technical field of comprehensive mining and excavation of coal mines, and in particular to a comprehensive mining and excavation system for coal mines and a network control method thereof. Background Art

[0002] In actual application scenarios, the coal mining industry's comprehensive mining and excavation scenarios require the use of multiple communication networks (such as Wi-Fi, Ethernet, 4G / 5G) to meet different business needs, such as uploading video data streams, remote control data streams and other common data streams. Different business needs have different requirements for network resources. If the resource allocation is unreasonable and the network's real-time performance is insufficient, some important businesses may not be able to proceed normally. For example, the remote control business cannot get enough low-latency guarantee. At this stage, the coal mining industry's comprehensive mining and excavation scenarios have problems such as network incompatibility, the inability to reasonably allocate network resources in a multi-network business environment, and insufficient network real-time performance and reliability. Summary of the invention

[0003] In view of this, the embodiment of the present application provides a coal mine comprehensive mining and excavation system and its network control method, which can effectively solve the problems of network compatibility, reasonable allocation of network resources in a multi-network business environment, network real-time performance and reliability, etc.

[0004] In a first aspect, an embodiment of the present application provides a network control method for a coal mine fully-mechanized mining and excavation system, wherein the coal mine fully-mechanized mining and excavation system comprises a plurality of network transmission modules connected in communication, each of the network transmission modules comprises a TSN switching unit, a plurality of bracket units and a plurality of control units, and the network control method is applied to the TSN switching unit, and the network control method comprises:

[0005] Receiving data streams from the control unit and other TSN switching units connected to the control unit;

[0006] Determining a transmission priority of the data stream according to the type of the data stream;

[0007] Determining the gating status of each type of the data stream based on the transmission priority through the gating list;

[0008] Each type of data stream is transmitted to the upper-level device in sequence through a preset time window, so that the upper-level device preferentially obtains the data stream with the highest transmission priority.

[0009] In a first possible embodiment of the first aspect, the network control method of the coal mine fully mechanized mining and excavation system further includes:

[0010] The reserved transmission bandwidth is allocated to the data stream with the highest transmission priority, so that the data stream with the highest transmission priority is fully transmitted within the corresponding preset time window.

[0011] In a second possible embodiment of the first aspect, the data stream includes a real-time data stream and a non-real-time data stream, and determining the transmission priority of the data stream according to the type of the data stream includes:

[0012] The real-time data stream is set to a first transmission priority, and the transmission priority of the non-real-time data stream is set to a second transmission priority, wherein the first transmission priority is the highest.

[0013] In a third possible embodiment of the first aspect, the gating state includes an open state and a closed state, and determining the gating state of each type of the data stream based on the transmission priority through the gating list includes:

[0014] Prioritizing setting the gating state of the data flow of the first transmission priority to an open state for priority transmission;

[0015] When the transmission of the data stream of the first transmission priority is completed, the gating state of the data stream of the first transmission priority is closed, and the gating state of the data stream of the second transmission priority is opened to transmit the data stream of the second transmission priority.

[0016] In a fourth possible embodiment of the first aspect, the transmitting the various types of data streams to the upper-level device in sequence through a preset time window includes:

[0017] Different preset time windows are divided according to each type of data stream, so that after the gating state of each type of data stream is turned on, each type of data stream is transmitted within a time period in which transmission is allowed.

[0018] In a fifth possible embodiment of the first aspect, the TSN switching unit includes a switch chip, a plurality of gigabit optical ports, and a plurality of T1 gigabit ports, and the method further includes:

[0019] Connecting other TSN switching units through each of the Gigabit optical ports to receive data streams from other TSN switching units;

[0020] Multiple control units are connected in sequence through each T1 Gigabit port to receive the data stream of each control unit.

[0021] In the second aspect, an embodiment of the present application provides a coal mine comprehensive mining and excavation system, including: multiple communication-connected network transmission modules, each of the network transmission modules includes a TSN switching unit, multiple support units and multiple control units, and the TSN switching unit uses the above-mentioned network control method to control the transmission of data streams.

[0022] In a first possible embodiment of the second aspect, the TSN switching unit includes a plurality of gigabit optical ports, and the TSN switching unit and each of the control units include a plurality of T1 gigabit ports and a plurality of serial communication interfaces;

[0023] Each of the Gigabit optical ports is used to connect to other TSN switching units, each of the T1 Gigabit ports of the TSN switching unit is connected in turn to the T1 Gigabit port of each of the control units, and each of the serial communication interfaces of the TSN switching unit is connected in turn to the serial communication interface of each of the control units.

[0024] In a second possible embodiment of the second aspect, each of the control units includes a micro-control sub-unit, a gateway sub-unit and a switching sub-unit, and the gateway sub-unit is respectively connected to the switching sub-unit and the micro-control sub-unit;

[0025] The microcontroller subunit is used to generate control data for the bracket unit, and the gateway subunit is used to process cross-network communication;

[0026] The switching subunit is used to transmit the control data to the bracket unit and the TSN switching unit respectively.

[0027] In a third possible embodiment of the second aspect, each of the control unit and the bracket unit includes a CAN communication interface;

[0028] The CAN communication interface of each control unit is correspondingly connected to the CAN communication interface of each bracket unit.

[0029] The embodiments of the present application have the following beneficial effects:

[0030] A network control method for a coal mine comprehensive mining and excavation system in this embodiment, the coal mine comprehensive mining and excavation system includes multiple communication-connected network transmission modules, each network transmission module includes a TSN switching unit, multiple bracket units and multiple control units, the network control method is applied to the TSN switching unit, and the network control method includes: receiving the data stream of the control unit and other TSN switching units connected to itself; determining the transmission priority of the data stream according to the type of the data stream; determining the gating state of each type of data stream based on the transmission priority through the gating list; transmitting each type of data stream to the upper device in turn through a preset time window, so that the upper device preferentially obtains the data stream with the highest transmission priority. The network control method for the coal mine comprehensive mining and excavation system realizes the reasonable allocation of network resources in a multi-network service environment, prioritizes the bandwidth requirements of the data stream with the highest transmission priority, ensures that each service obtains the necessary bandwidth and transmission stability, realizes the common network transmission of different data streams, and solves the problems caused by network convergence. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0032] Figure 1 A structural schematic diagram of a coal mine fully mechanized mining and excavation system according to an embodiment of the present application is shown;

[0033] Figure 2 A schematic diagram showing the structure of each network transmission module in an embodiment of the present application is shown;

[0034] Figure 3 A first flow chart of a network control method for a fully mechanized mining and excavation system in a coal mine according to an embodiment of the present application is shown;

[0035] Figure 4 A second flow chart of the network control method of the coal mine comprehensive mining and excavation system in the embodiment of the present application is shown.

[0036] Description of main component symbols:

[0037] 100-coal mine comprehensive mining and excavation system; 110-network transmission module; 111-support unit; 112-control unit; 1121-microcontroller subunit; 1122-gateway subunit; 1123-switching subunit; 113-TSN switching unit. DETAILED DESCRIPTION

[0038] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments.

[0039] The components of the embodiments of the present application generally described and shown in the drawings herein may be arranged and designed in various configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the application claimed for protection, but merely represents the selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without making creative work belong to the scope of protection of the present application.

[0040] Hereinafter, the terms "including", "having" and their cognates that can be used in various embodiments of the present application are intended only to indicate specific features, numbers, steps, operations, elements, components or a combination of the foregoing items, and should not be understood as first excluding the existence of one or more other features, numbers, steps, operations, elements, components or a combination of the foregoing items or increasing the possibility of one or more features, numbers, steps, operations, elements, components or a combination of the foregoing items. In addition, the terms "first", "second", "third" and the like are only used to distinguish descriptions and cannot be understood as indicating or implying relative importance.

[0041] Unless otherwise defined, all terms (including technical terms and scientific terms) used herein have the same meanings as those generally understood by those skilled in the art to which the various embodiments of the present application belong. The terms (such as those defined in generally used dictionaries) will be interpreted as having the same meanings as the contextual meanings in the relevant technical field and will not be interpreted as having idealized meanings or overly formal meanings unless clearly defined in the various embodiments of the present application.

[0042] In conjunction with the accompanying drawings, some embodiments of the present application are described in detail below. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0043] The comprehensive mining and excavation system of a coal mine refers to a series of technologies and equipment for coal production using comprehensive mechanized equipment. The comprehensive mining system mainly includes coal mining machines, scraper conveyors, hydraulic supports and other equipment, which are responsible for the cutting, loading and transportation of coal; the comprehensive excavation system focuses on the development and excavation of tunnels. The technological development of the comprehensive mining and excavation system of a coal mine is rapidly advancing in the direction of greater intelligence and automation. By integrating advanced sensor technology, monitoring technology, control technology and communication technology, coal mine production is becoming more efficient and safe. The present application provides a network control method for a comprehensive mining and excavation system of a coal mine, which ensures the time synchronization of the comprehensive mining and excavation system of a coal mine and the integration of different types of data streams, while ensuring the priority transmission right of real-time data streams. The transmission of real-time data streams is not affected by non-real-time data, so as to prevent equipment failures or safety hazards caused by delays in the transmission of real-time data streams.

[0044] Before describing the network control method of the coal mine comprehensive mining and comprehensive excavation system of the present application, the structure of the coal mine comprehensive mining and comprehensive excavation system is first introduced accordingly.

[0045] Figure 1A structural schematic diagram of a coal mine comprehensive mining and excavation system 100 according to an embodiment of the present application is shown. Exemplarily, the coal mine comprehensive mining and excavation system 100 includes a plurality of communication-connected network transmission modules 110, each of which includes a plurality of bracket units 111, a plurality of control units 112, and a TSN switching unit 113, each of which is connected to each control unit 112, and each of which can be connected to a plurality of control units 112 to receive data streams from each of the control units 112.

[0046] In one embodiment, the mine's comprehensive mining and excavation system is a network structure composed of multiple network transmission modules 110, and each network transmission module 110 is connected in series to form a star topology structure to cover the entire coal mine area. The comprehensive network system improves the network's reliability and fault tolerance.

[0047] Demonstratively, different business networks in the traditional coal mine comprehensive mining and excavation system 100 are separated. This application adopts TSN technology to achieve deterministic minimum time delay in the non-deterministic Ethernet, providing a technical basis for the integration of traditional OT (Operation Technology) and IT (Information Technology) networks.

[0048] In one embodiment, if Figure 2 As shown, the TSN switching unit 113 includes multiple gigabit optical ports, and the TSN switching unit 113 and each control unit 112 include multiple T1 gigabit ports and multiple serial communication interfaces; each gigabit optical port is used to connect other TSN switching units 113, so that the TSN switching unit 113 and other TSN switching units 113 can perform long-distance data transmission, with high transmission efficiency and low latency. Each T1 gigabit port of the TSN switching unit 113 is connected to the T1 gigabit port of each control unit 112 in turn, so that the TSN switching unit 113 and each control unit 112 can perform fast data flow transmission over short distances. Each serial communication interface of the TSN switching unit 113 is connected to the serial communication interface of each control unit 112 in turn, so that the TSN switching unit 113 and each control unit 112 can convert parallel data into serial data, and perform bidirectional communication through two input transmission lines and output transmission lines.

[0049] Optionally, each T1 Gigabit port can adopt the RJ45 interface form to support high-speed data transmission for shorter distance communication. The RJ45 interface can provide a transmission rate of up to 1000Mbps to meet applications with higher bandwidth requirements.

[0050] In one embodiment, the TSN switching unit 113 includes a switch chip, multiple gigabit optical ports, and multiple T1 gigabit ports. The TSN switching unit 113 is used to connect to other TSN switching units 113 through each gigabit optical port to receive data streams from other TSN switching units 113. The TSN switching unit 113 is also used to sequentially connect to multiple control units 112 through each T1 gigabit port to receive data streams from each control unit 112. The support unit 111 may be a hydraulic support.

[0051] Exemplarily, each control unit 112 is used to perform control services on the corresponding connected rack unit 111, and upload the control data stream to the TSN switching unit 113, so that the TSN switching unit 113 can timely transmit the control data stream in real time. Among them, the control data is a set of data transmitted between the control unit 112 and the rack unit 111, including control instructions, real-time working status data of the rack unit 111, and feedback signals after the rack unit 111 executes the control instructions.

[0052] In one embodiment, if Figure 2 As shown, each control unit 112 includes a micro-control subunit 1121, a gateway subunit 1122 and a switching subunit 1123, and the gateway subunit 1122 is connected to the switching subunit 1123 and the micro-control subunit 1121 respectively; the micro-control subunit 1121 is used to generate control data for the bracket unit 111, and the gateway subunit 1122 is used to process cross-network communication. In the control unit 112, the gateway subunit 1122 is used to connect devices using different communication standards, such as connecting the field bus system with the Ethernet system, to ensure that the data stream can be transmitted between different networks, and it is possible to convert the data format and adapt the protocol. The switching subunit 1123 is used to transmit control data to the bracket unit 111 and the TSN switching unit 113 respectively, and each control unit 112 and the bracket unit 111 include a CAN communication interface; the CAN communication interface of each control unit 112 is correspondingly connected to the CAN communication interface of each bracket unit 111, so that data can be transmitted between the control unit 112 and the bracket unit 111.

[0053] In another embodiment, each network transmission module 110 also includes monitoring units such as a video monitoring unit, a device status monitoring unit, and an environmental monitoring unit. Each video monitoring unit, device status monitoring unit, and environmental monitoring unit is connected to a TSN switching unit 113. The TSN switching unit 113 is used to ensure time synchronization between all connected devices and the fusion of all data streams, and transmit the priority data streams in real time.

[0054] It can be understood that each network transmission module 110 is interconnected, and each network transmission module 110 transmits different data streams through the TSN switching unit 113, which solves the compatibility problems that may exist between networks and hinder seamless switching and efficient collaboration. In a multi-network service environment, the TSN switching unit 113 is used to reasonably allocate network resources, ensure that each service data stream obtains the necessary bandwidth, and plan a network that can handle large-capacity data transmission and ensure time determinism under limited resources.

[0055] Figure 3 A flow chart of a network control method of a coal mine fully mechanized mining and excavation system 100 according to an embodiment of the present application is shown. Exemplarily, the network control method is applied to the TSN switching unit 113, and specifically includes the following steps:

[0056] S210 , receiving data streams from the control unit 112 and other TSN switching units 113 connected to the control unit 112 .

[0057] In the present application, the TSN switching unit 113 can realize deterministic transmission, timely upload and processing of different types of data streams, improve the real-time monitoring capability of the coal mine comprehensive mining and excavation system 100, ensure the non-delay transmission of real-time data, and timely feedback the working status of the support module to prevent accidents caused by support instability, ensure low-latency transmission of non-real-time data, and timely detect equipment abnormalities and perform maintenance; the TSN switching unit 113 also ensures that all different types of data streams are collected under the same time reference through time synchronization, which is convenient for comprehensive analysis and decision-making.

[0058] S220: Determine a transmission priority of the data stream according to the type of the data stream.

[0059] Exemplarily, the data stream may include control data, bracket status data and other monitoring data. Different types of data streams have different transmission priorities. The network control method gives priority to data streams that need real-time transmission according to data streams with different transmission priorities, so that the upper-level device can obtain the real-time transmission data stream in time.

[0060] In one embodiment, the data stream includes a real-time data stream and a non-real-time data stream, wherein the real-time data may be important data such as hydraulic support status data and control data, and the non-real-time data stream may be common monitoring data such as coal mining machine status. The network control method determines the transmission priority of the data stream according to the type of the data stream, including: setting the real-time data stream as a first transmission priority, and setting the transmission priority of the non-real-time data stream as a second transmission priority, wherein the first transmission priority is the highest.

[0061] S230, determining the gating status of each type of data flow based on the transmission priority through the gating list.

[0062] Exemplarily, the TSN switching unit 113 can effectively allocate and manage network transmission time points and time periods of data flows of the first transmission priority and the second transmission priority, and give priority to ensuring the transmission requirements of the data flows of the first transmission priority.

[0063] In one embodiment, the gate state includes an open state and a closed state, such as Figure 4 As shown, the network control method determines the gating state of various data flows based on the transmission priority through the gating list, including the following steps:

[0064] S231, preferentially setting the gating state of the data stream with the first transmission priority to an open state for priority transmission.

[0065] S232, when the transmission of the data stream with the first transmission priority is completed, close the gating state of the data stream with the first transmission priority.

[0066] S233, and start the gating state of the data flow with the second transmission priority to transmit the data flow with the second transmission priority.

[0067] S240, transmitting various types of data streams to the upper-level device in sequence through a preset time window, so that the upper-level device preferentially obtains the data stream with the highest transmission priority.

[0068] In one embodiment, the network control method transmits various types of data streams to the upper-level device in sequence through preset time windows, including: dividing different preset time windows according to various types of data streams, so that after the gating state of each type of data stream is turned on, each type of data stream is transmitted within the time period allowed for transmission.

[0069] In one embodiment, the gating state of the data stream is turned on at a preset time point, and the data stream is transmitted through a preset time window, wherein the preset time window defines a preset transmission time of the data stream. When the gating state of the data stream is turned on to the preset transmission time, the gating state of the data stream with the first transmission priority is turned off, and the corresponding data stream is no longer transmitted.

[0070] In one embodiment, the network control method further includes: allocating a reserved transmission bandwidth to the data stream with the highest transmission priority, so that the data stream with the highest transmission priority is fully transmitted within the corresponding preset time window.

[0071] It can be understood that in order to ensure that the data stream is completely transmitted within the current preset time window, the TSN switching unit 113 reserves the transmission bandwidth to quickly transmit the remaining data stream to ensure that the real-time data stream can be fully transmitted in real time. The TSN switching unit 113 also optimizes the use of network resources through precise clock synchronization and transmission scheduling mechanism, and accurately allocates transmission bandwidth according to the needs of the coal mine comprehensive mining and excavation system 100 to ensure that the transmission of control data is not affected by video data.

[0072] In the coal mine comprehensive mining and excavation system 100, the network control method performs well in data blocking control and network storm control, has fine management, and has outstanding advantages in processing time-sensitive data. It can ensure that when real-time data and non-real-time data are transmitted on the same network, real-time data is not interfered by network storms and other data streams, ensuring its real-time and certainty, giving real-time data priority transmission rights, and preventing equipment failures or safety hazards caused by data transmission delays. The network control method can ensure the coordination and synchronous operation between comprehensive mining and excavation equipment, and reduce control errors caused by time differences.

[0073] It can be understood that the network control method of this embodiment corresponds to the coal mine comprehensive mining and excavation system 100 of the above embodiment, and the optional items in the above embodiment are also applicable to this embodiment, so they will not be repeated here.

[0074] In several embodiments provided in the present application, it should be understood that the disclosed apparatus and method can also be implemented in other ways. The apparatus embodiments described above are merely schematic, for example, the flowcharts and structure diagrams in the accompanying drawings show the possible architecture, functions and operations of the apparatus, method and computer program product according to multiple embodiments of the present application. In this regard, each box in the flowchart or block diagram can represent a module, a program segment or a part of a code, and a module, a program segment or a part of a code contains one or more executable instructions for implementing a specified logical function. It should also be noted that in an alternative implementation, the functions marked in the box can also occur in a different order from that marked in the accompanying drawings. For example, two consecutive boxes can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, depending on the functions involved. It should also be noted that each box in the structure diagram and / or the flow diagram, and the combination of boxes in the structure diagram and / or the flow diagram, can be implemented with a dedicated hardware-based system that performs a specified function or action, or can be implemented with a combination of dedicated hardware and computer instructions.

[0075] In addition, the functional modules or units in the various embodiments of the present application may be integrated together to form an independent part, or each module may exist separately, or two or more modules may be integrated to form an independent part.

[0076] If the function is implemented in the form of a software function module and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application, or the part that contributes to the prior art, or the part of the technical solution, can be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for a computer device (which can be a smart phone, a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the methods of each embodiment of the present application.

[0077] The above are only specific implementation methods of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be covered by the protection scope of the present application.

Claims

1. A network control method for a coal mine fully mechanized mining and excavation system, characterized in that: The coal mine fully mechanized mining and excavation system comprises a plurality of communication-connected network transmission modules, each of which comprises a TSN switching unit, a plurality of bracket units and a plurality of control units. The network control method is applied to the TSN switching unit, and the network control method comprises: Receiving data streams from the control unit and other TSN switching units connected to the control unit; Determining a transmission priority of the data stream according to the type of the data stream; Determining the gating status of each type of the data stream based on the transmission priority through the gating list; Each type of data stream is transmitted to the upper-level device in sequence through a preset time window, so that the upper-level device preferentially obtains the data stream with the highest transmission priority.

2. The network control method of the coal mine comprehensive mining and excavation system according to claim 1 is characterized in that: Also includes: The reserved transmission bandwidth is allocated to the data stream with the highest transmission priority, so that the data stream with the highest transmission priority is fully transmitted within the corresponding preset time window.

3. The network control method of the coal mine comprehensive mining and excavation system according to claim 1 is characterized in that: The data stream includes a real-time data stream and a non-real-time data stream, and the determining the transmission priority of the data stream according to the type of the data stream includes: The real-time data stream is set to a first transmission priority, and the transmission priority of the non-real-time data stream is set to a second transmission priority, wherein the first transmission priority is the highest.

4. The network control method of the coal mine comprehensive mining and excavation system according to claim 3 is characterized in that: The gating state includes an open state and a closed state, and the gating state of each type of data stream is determined based on the transmission priority through the gating list, including: Prioritizing setting the gating state of the data flow of the first transmission priority to an open state for priority transmission; When the transmission of the data stream of the first transmission priority is completed, the gating state of the data stream of the first transmission priority is closed, and the gating state of the data stream of the second transmission priority is opened to transmit the data stream of the second transmission priority.

5. The network control method of the coal mine comprehensive mining and excavation system according to claim 1 is characterized in that: The transmitting of each type of data stream to the upper level device in sequence through a preset time window includes: Different preset time windows are divided according to each type of data stream, so that after the gating state of each type of data stream is turned on, each type of data stream is transmitted within a time period in which transmission is allowed.

6. The network control method of the coal mine comprehensive mining and excavation system according to claim 1 is characterized in that: The TSN switching unit includes a switch chip, a plurality of Gigabit optical ports, and a plurality of T1 Gigabit ports, and the method further includes: Connecting other TSN switching units through each of the Gigabit optical ports to receive data streams from other TSN switching units; Multiple control units are connected in sequence through each T1 Gigabit port to receive the data stream of each control unit.

7. A coal mine fully mechanized mining and excavation system, characterized in that: include: A plurality of communication-connected network transmission modules, each of which comprises a TSN switching unit, a plurality of bracket units and a plurality of control units, and the TSN switching unit controls the transmission of data streams using the network control method as described in any one of claims 1 to 6.

8. The coal mine comprehensive mining and excavation system according to claim 7, characterized in that: The TSN switching unit includes a plurality of Gigabit optical ports, and the TSN switching unit and each of the control units include a plurality of T1 Gigabit ports and a plurality of serial communication interfaces; Each of the Gigabit optical ports is used to connect to other TSN switching units, each of the T1 Gigabit ports of the TSN switching unit is connected in turn to the T1 Gigabit port of each of the control units, and each of the serial communication interfaces of the TSN switching unit is connected in turn to the serial communication interface of each of the control units.

9. The coal mine comprehensive mining and excavation system according to claim 7, characterized in that: Each of the control units comprises a micro-control sub-unit, a gateway sub-unit and a switching sub-unit, wherein the gateway sub-unit is connected to the switching sub-unit and the micro-control sub-unit respectively; The microcontroller subunit is used to generate control data for the bracket unit, and the gateway subunit is used to process cross-network communication; The switching subunit is used to transmit the control data to the bracket unit and the TSN switching unit respectively.

10. The coal mine fully mechanized mining and excavation system according to claim 7, characterized in that: Each of the control unit and the bracket unit includes a CAN communication interface; The CAN communication interface of each control unit is correspondingly connected to the CAN communication interface of each bracket unit.

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