Fully-mechanized mining automation network system based on time-sensitive network

Abstract

The invention discloses a fully-mechanized coal mining automation network system based on a time sensitive network, and the system comprises a main TSN switch which is disposed at a fully-mechanized coal mining face, and a plurality of subsystems in the fully-mechanized coal mining automation system are connected with the main TSN switch through different communication modes; and the main TSN switch is used for realizing communication between the fully-mechanized coal mining automation system and the outside and realizing communication among the plurality of subsystems in combination with TSN equipment preset for the plurality of subsystems. The system adopts the time-sensitive network for communication, so that the real-time performance and reliability of network data transmission are improved, and the requirements of automatic control of a fully mechanized coal mining face for data communication are met.

Description

Technical Field

[0001] The present application relates to the field of coal mine network communication technology, and in particular to a comprehensive mining automation network system based on a time-sensitive network. Background Art

[0002] With the improvement of automation and intelligence in underground mining, more and more types of equipment are included in the fully-mechanized coal mining automation system. Each device transmits data to the ground workstation and each other through the communication system, so there are many types of data transmitted in the communication system that connects these devices. Since different types of data have different communication requirements, the communication methods used by each device in the fully-mechanized coal mining automation system are mostly different.

[0003] In the related art, standard Ethernet is generally used as the backbone network of the communication system, and other communication methods are compatible with standard Ethernet. However, since Ethernet itself cannot guarantee reliable and real-time data transmission, and the various types of communication methods and communication protocols used by various devices have different characteristics and cannot be compatible, the comprehensive mining face communication system in the above-mentioned related art has high uncertainty and delay when transmitting data, which may affect the normal operation of the comprehensive mining automation system. Summary of the invention

[0004] The purpose of this application is to solve one of the above-mentioned technical problems at least to a certain extent.

[0005] To this end, the purpose of this application is to propose a comprehensive mining automation network system based on a time-sensitive network. The system uses a time-sensitive network for communication, which improves the real-time and reliability of network data transmission, meets the needs of comprehensive mining face automation control for data communication, and solves the problem of high uncertainty and delay in data transmission in Ethernet communication of comprehensive mining face.

[0006] To achieve the above-mentioned purpose, the first aspect of the present application proposes a comprehensive mining automation network system based on a time-sensitive network, the system comprising:

[0007] A main TSN switch, which is arranged at the fully mechanized mining working face, and a plurality of subsystems in the fully mechanized mining automation system are respectively connected to the main TSN switch through different communication modes;

[0008] The main TSN switch is used to realize the communication between the comprehensive mining automation system and the outside, and to realize the communication between the multiple subsystems in combination with the TSN devices preset for the multiple subsystems.

[0009] In addition, the comprehensive mining automation network system based on the time-sensitive network TSN of the embodiment of the present application also has the following additional technical features:

[0010] Optionally, in some embodiments, the system further includes: multiple mine ring network TSN switches, ground TSN switches and ground TSN control terminals, wherein the main TSN switch is connected to the ground TSN switch through the multiple mine ring network TSN switches, or the main TSN switch is directly connected to the ground TSN switch, and the ground TSN switch is connected to the ground TSN control terminal; the main TSN switch is used to transmit the communication data of the multiple subsystems to the ground TSN control terminal through the multiple mine ring network TSN switches and the ground TSN switch.

[0011] Optionally, in some embodiments, each of the TSN switches includes: a configuration unit, which is used to configure a gating list of the TSN switch, set corresponding priorities for different types of communication data transmitted by the multiple subsystems, and preset a corresponding bandwidth for each type of communication data.

[0012] Optionally, in some embodiments, each of the TSN switches is a layer 2 switch, so that the above-ground network and the underground network in the comprehensive mining automation network system form the same layer 2 network.

[0013] Optionally, in some embodiments, the multiple subsystems include: a coal mining machine control subsystem, a hydraulic support control subsystem, a conveyor control subsystem, a pump station control subsystem and multiple Ethernet terminal devices. The multiple subsystems are respectively connected to the main TSN switch through different connection methods based on their own communication methods, including: a TSN switch is integrated in the support controller of each hydraulic support, and each of the support controllers communicates through the corresponding support TSN switch; the hydraulic support control subsystem is connected to the main TSN switch through any support TSN switch; the coal mining machine control subsystem and the pump station control subsystem are directly connected to the main TSN switch.

[0014] Optionally, in some embodiments, the multiple subsystems are respectively connected to the main TSN switch through different connection methods based on their own communication methods, and also include: configuring a corresponding TSN device for each of the Ethernet terminal devices to convert the Ethernet terminal device into a TSN terminal device, and each of the TSN terminal devices is directly connected to the main TSN switch.

[0015] Optionally, in some embodiments, the multiple subsystems are connected to the main TSN switch through different connection methods based on their own communication methods, and also include: the conveyor control subsystem is connected to the main TSN switch through a TSN gateway, wherein the TSN gateway is used to convert industrial field bus communication into Ethernet communication.

[0016] Optionally, in some embodiments, the system further includes: a centralized network control CNC controller, wherein the CNC controller is used to identify the different types of communication data, wherein the different types of communication data include: security data stream, control data stream, audio data stream, video data stream and sensor data stream.

[0017] Optionally, in some embodiments, the configuration unit is specifically used to: set the security data stream to a first priority and preset a first bandwidth for the security data stream; set the control data stream to a second priority and preset a second bandwidth for the control data stream; set the audio data stream to a third priority and preset a third bandwidth for the audio data stream; wherein the first priority is greater than the second priority, the second priority is greater than the third priority, and the first bandwidth, the second bandwidth and the third bandwidth are low bandwidths.

[0018] Optionally, in some embodiments, the configuration unit is specifically used to: set the sensor data stream to the fourth priority and preset a fourth bandwidth for the sensor data stream; set the video data stream to the fifth priority and preset a fifth bandwidth for the video data stream; wherein the third priority is greater than the fourth priority, the fourth priority is greater than the fifth priority, the fourth bandwidth is a low bandwidth, the fifth bandwidth is a high bandwidth, and the bandwidth values ​​of the first bandwidth, the second bandwidth, the third bandwidth, the fourth bandwidth and the fifth bandwidth are determined according to the current amount of data to be transmitted.

[0019] The technical solution provided by the embodiments of the present application brings at least the following beneficial effects:

[0020] This application has built a comprehensive mining face communication system using a time-sensitive network TSN. The backbone network of the comprehensive mining automation network system is formed by TSN switches set at different locations. The network communicates based on time-sensitive network technology and can complete the transmission of each data packet in the comprehensive mining automation system with a certain delay. In addition, the system connects each subsystem and device in the comprehensive mining automation system to the TSN switch for TSN communication, unifies the communication mode of each device in the comprehensive mining automation system, and can transmit various types of data in the same network, simplifying the complexity of the entire communication network and further reducing the delay of data transmission. In addition, the system also provides deterministic low-latency services for some key data streams through the gating planning and configuration of the TSN switch, ensuring the timely and reliable transmission of key data. As a result, the system provides a real-time, deterministic and reliable communication network for the comprehensive mining face, improves the real-time and reliability of network data transmission, can meet the needs of data communication for the automation control of the comprehensive mining face, and is conducive to ensuring the normal and stable operation of the coal mine comprehensive mining automation system.

[0021] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0023] Figure 1 A schematic diagram of the structure of a comprehensive mining automation network system based on a time-sensitive network TSN proposed in an embodiment of the present application;

[0024] Figure 2 A schematic diagram of the structure of a specific comprehensive mining automation network system based on a time-sensitive network TSN proposed in an embodiment of the present application. DETAILED DESCRIPTION

[0025] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0026] It should be noted that there are many types of equipment included in the coal mine comprehensive mining automation system, such as coal mining machines, hydraulic supports, scraper conveyors, transfer machines, crushers, belt conveyors, and emulsion high-pressure pumps for liquid supply, as well as mobile substations and combination switches for power supply. There are many types of data transmitted in the communication system, including control data, sensor data, video, and audio data, and different types of data have different requirements for the real-time and deterministic nature of the communication link. As a result, the communication methods used by the equipment are mostly different. For example, there are standard Ethernet or industrial Ethernet for communication, and there are RS485, CAN and other buses for communication, which cannot be unified. Protocol conversion and other steps are required for data transmission between various devices. The communication network is relatively complex and the transmission efficiency is low.

[0027] Moreover, since the Ethernet used in the current communication system is a best-effort communication mode, it cannot guarantee the timely and deterministic transmission of data. Combining the above two reasons, the current communication network system of the fully mechanized mining face in the mine has high uncertainty and delay.

[0028] To this end, this application proposes a comprehensive mining automation network system based on the time-sensitive network TSN, which can perform real-time, deterministic and reliable communication to meet the needs of automation control for data communication.

[0029] The following describes a comprehensive mining automation network system based on a time-sensitive network TSN proposed in an embodiment of the present invention with reference to the accompanying drawings.

[0030] Figure 1 A schematic diagram of the structure of a comprehensive mining automation network system based on a time-sensitive network TSN proposed in an embodiment of the present application is shown in FIG. Figure 1 As shown, the system includes: a main TSN switch 100 and TSN devices 110 preset for certain subsystems in the comprehensive mining automation system.

[0031] Among them, the main TSN switch 100 is set at the underground comprehensive mining working face of the mine. Multiple subsystems in the coal mine comprehensive mining automation system select corresponding connection methods to connect to the main TSN switch 100 based on actual factors such as their own communication protocols and hardware equipment conditions. That is, multiple subsystems are connected to the main TSN switch 100 through different communication methods.

[0032] For example, the multiple subsystems in the comprehensive mining automation system include but are not limited to the coal mining machine control subsystem, the hydraulic support control subsystem and the conveyor control subsystem. Figure 1As shown, multiple subsystems are respectively connected to the main TSN switch 100 through different communication methods, including: some subsystems can be directly connected to the main TSN switch 100, and some subsystems are restricted by their working methods in the comprehensive mining automation system and need to be connected to the preset related TSN devices 110 before connecting to the main TSN switch 100. For different subsystems, the types of corresponding TSN devices 110 can be different, and the number of subsystems that need to be connected and the number of TSN devices 110 that need to be preset can be determined according to actual needs.

[0033] The main TSN switch 100 is used to realize the communication between the comprehensive mining automation system and the outside, and to realize the communication between multiple subsystems in combination with the TSN devices 110 preset for multiple subsystems. For example, the main TSN switch 100 can realize the communication between the comprehensive mining automation system and the ground control center in combination with the ring network and the ground TSN switch.

[0034] It should be noted that this application builds a communication network system based on Time Sensitive Networking (TSN) technology. As mentioned above, each device in the network system uses a device that supports TSN communication. Time-sensitive networks provide deterministic services based on standard Ethernet technology, and can complete the transmission of data packets with a certain delay. TSN provides microsecond-level deterministic services, which significantly improves the real-time performance of data transmission. In addition, TSN can also reduce the complexity of the entire communication network and realize the simultaneous transmission of periodic data and non-periodic data.

[0035] For example, taking data transmission in the industrial field as an example, the current periodic control data is transmitted using industrial Ethernet, and the non-periodic data is transmitted using standard Ethernet. TSN, through its scheduling mechanism, enables the transmission of periodic data and non-periodic data in the same network. Therefore, this application connects each subsystem in the comprehensive mining automation system to the TSN network through different TSN devices and corresponding connection methods, further simplifying the network complexity in the entire communication.

[0036] Specifically, the comprehensive mining automation network system of the present application includes various TSN switches arranged at different locations above and below the well, various TSN devices arranged to connect each subsystem to the TSN network system, such as TSN gateways, etc., and terminal devices such as TSN terminals.

[0037] In one embodiment of the present application, Figure 2 A schematic diagram of the structure of a specific comprehensive mining automation network system based on a time-sensitive network TSN proposed in an embodiment of the present application is shown in FIG. Figure 2As shown, the network system also includes: a plurality of mine ring network TSN switches 200, a ground TSN switch 300 and a ground TSN control terminal 70.

[0038] The main TSN switch 100 is connected to the ground TSN switch 300 through multiple mine ring network TSN switches 200, or the main TSN switch can also be directly connected to the ground TSN switch, and no other ordinary switches are set in the communication link. The ground TSN switch 300 is connected to the ground TSN control terminal 70.

[0039] When the underground subsystem needs to exchange data with the ground control center, the main TSN switch 100 is specifically used to transmit the communication data of multiple subsystems to the ground TSN control terminal 70 through multiple mine ring network TSN switches 200 and the ground TSN switch 700.

[0040] Among them, the main TSN switch 100 set at the fully mechanized mining face in the mine, the mine ring network TSN switch 200 and the TSN switch 300 set on the ground constitute the backbone network of the fully mechanized mining automation network system. The specific setting position of the main TSN switch 100 at the fully mechanized mining face can be determined according to factors such as the convenience of communication connection with each subsystem. For example, the main TSN switch 100 can be set at the chute of the fully mechanized mining face to connect with multiple subsystems.

[0041] During specific implementation, when building a TSN network system for each subsystem in the coal mine comprehensive mining automation system, since the original communication methods of each subsystem in the comprehensive mining automation system are different, for example, some equipment needs to be connected to industrial field buses such as the CAN bus to achieve communication. Therefore, this application specifically sets up different connection methods for each type of subsystem to connect to the main TSN switch 100, so as to uniformly connect each subsystem to the built TSN network system.

[0042] In order to more clearly illustrate the specific implementation method of the comprehensive mining automation network system based on the time-sensitive network TSN of the present application and connecting and communicating with each subsystem, an example description is given below using a specific comprehensive mining automation network system proposed in an embodiment of the present application.

[0043] like Figure 2 As shown, in Figure 1 Based on the system shown, the system also includes multiple subsystems, including: a coal mining machine control subsystem 10, a hydraulic support control subsystem 20, a conveyor control subsystem 30, a pump station control subsystem 40 and multiple Ethernet terminal devices 50, as well as a TSN gateway 60 and a ground control terminal 70.

[0044] For ease of description, Figure 2 The centralized control server is only described as an example of an Ethernet terminal device. In actual applications, multiple Ethernet terminal devices 50 can be connected to the main TSN switch 100 according to the actual situation of the comprehensive mining face, and this application does not impose any restrictions on this.

[0045] Specifically, in this embodiment, the main TSN switch 100 is set in the drift of the working face, and various subsystems such as coal mining machines, hydraulic supports, conveyors and pumping stations are connected to the main TSN switch 100 through corresponding connection methods. These subsystems are mainly divided into the following three types of connection methods, which are described in detail below.

[0046] As a first possible implementation method, multiple subsystems are connected to the main TSN switch through different connection methods based on their own communication methods, including: a TSN switch is integrated in the support controller of each hydraulic support, and each support controller communicates through the corresponding support TSN switch; the hydraulic support control subsystem is connected to the main TSN switch through any support TSN switch; the coal mining machine control subsystem and the pump station control subsystem are directly connected to the main TSN switch.

[0047] In this example, if Figure 2 As shown, in the hydraulic support control subsystem 20 of the working face, each hydraulic support has a corresponding support controller 21, and a TSN switch ( Figure 2 The TSN switches in brackets represent integrated devices), and each support controller 21 can communicate with each other through the corresponding support TSN switch (i.e., the TSN switch integrated as described above). The hydraulic support control subsystem 20 is also connected to the main TSN switch 100 through the TSN switch integrated in one of the support controllers 21 to achieve communication connection between the hydraulic support control subsystem 20 and the main TSN switch 100. The coal mining machine control subsystem 10 and the pump station control subsystem 40 are directly connected to the main TSN switch 100.

[0048] That is, the first type of connection method is that multiple subsystems such as the coal mining machine control subsystem 10, the hydraulic support control subsystem 20 and the pump station control subsystem 40 can be connected through the main TSN switch 100, and the subsystems such as the hydraulic support control subsystem 20 that contain multiple devices, and the various devices within the subsystem can also be communicated and connected through the set TSN switch.

[0049] As a second possible implementation method, multiple subsystems are respectively connected to the main TSN switch through different communication methods, and also include: configuring a corresponding TSN device for each Ethernet terminal device to convert the Ethernet terminal device into a TSN terminal device, and each TSN terminal device is directly connected to the main TSN switch.

[0050] In this example, in the Ethernet terminal device 50 such as the centralized control server, the corresponding TSN device is configured to convert the Ethernet terminal device into a TSN terminal device ( Figure 2 The TSN terminal in brackets represents the result after conversion), and the TSN terminal device can be directly connected to the main TSN switch 100.

[0051] For example, Figure 2 As shown, for the centralized control server, this type of terminal device preferably uses a terminal device that supports the TSN communication protocol, and configures a dedicated TSN network card for the centralized control server to achieve direct access to the Ethernet terminal device. For different Ethernet terminal devices 50, various types of TSN devices including TSN network cards can be configured for connection.

[0052] As a third possible implementation method, multiple subsystems are connected to the main TSN switch through different communication methods, and also include: the conveyor control subsystem is connected to the main TSN switch through a TSN gateway, wherein the TSN gateway is used to convert industrial field bus communication into Ethernet communication.

[0053] In this example, for the subsystem that originally adopted industrial field bus communication, for example, the conveyor control system 30, in order to access the TSN backbone network, it is necessary to convert the field bus communication of the original subsystem into Ethernet communication through a gateway. This application prefers to use a dedicated gateway that supports TSN communication, namely the TSN gateway 60 shown in the figure.

[0054] In specific implementation, a separate TSN gateway 60 can be set for each subsystem that needs to perform communication conversion, or a common TSN gateway 60 can be set for multiple subsystems, depending on parameter information such as the distance between the subsystems where the TSN gateway is to be set, and various factors such as the hardware cost of network communication.

[0055] Therefore, the embodiment of the present application realizes that each subsystem in the comprehensive mining automation system is connected to the main TSN switch through different connection methods based on its own communication characteristics, and then can communicate through the TSN comprehensive mining automation network system. In the network system of the present application, the backbone network switch adopts a TSN switch, and the Ethernet switches in the connected subsystems also give priority to TSN switches, and all terminal devices give priority to TSN terminals. Thus, data transmission from TSN terminal to TSN terminal can be realized, and the intermediate communication links used in data transmission are all TSN switches.

[0056] For example, when data is transmitted from the underground centralized control server 50 to the ground control terminal 70 above the well, the ground TSN switch 300 is connected to the ground TSN control terminal 70, and the centralized control server 50 is connected to the ground TSN switch 300 through the main TSN switch 100 and the mine ring network TSN switch 200, that is, the intermediate communication links are all composed of TSN switches, which can achieve the best communication quality. The ground control terminal 70 can be a terminal device at the ground control center.

[0057] In order to ensure the TSN transmission characteristics of the TSN comprehensive mining automation network system of the present application, in one embodiment of the present application, each TSN switch in the above embodiment is a layer 2 switch, so that the above-ground network and the underground network in the comprehensive mining automation network system constitute the same layer 2 network.

[0058] Specifically, in this embodiment, the above-mentioned main TSN switch 100, the mine ring network TSN switch 200 and the TSN switch set in the subsystem, for example, the bracket TSN switch integrated in the bracket controller 21, are all layer 2 switches, and the selected switches support a series of TSN protocols such as 802.1AS, 802.1Qbv, 802.1Qbu, 802.1Qcc, 802.1Qci and 802.1CB, so that the above-ground part and the underground network in the constructed TSN comprehensive mining automation network system are under the same layer 2 network.

[0059] Among them, the layer 2 network is the data link layer. The layer 2 network is a network that transmits data between adjacent network nodes or between nodes on the same local area network. The layer 2 switch is a device that works on the layer 2 network and can only forward data frames within the same broadcast domain. Since the TSN protocol is a protocol applicable to the layer 2 network, this application builds a complete layer 2 network, which can ensure the best TSN characteristics when transmitting data between networks.

[0060] It should be noted that, in one embodiment of the present application, the mine ring network TSN switch 200 may also be a three-layer TSN switch, so that different connected subnets work in different clock domains, further improving the efficiency of underground data transmission.

[0061] Based on the above embodiments, since multiple subsystems in the comprehensive mining automation system need to transmit a large number of data types, in actual applications, in order to ensure that some key data streams can be transmitted to the target device at a certain time point with low latency, this application also provides deterministic low-latency services for some key data streams through gating planning and configuration of TSN switches.

[0062] In one embodiment of the present application, each TSN switch includes: a configuration unit, which is used to configure a gating list of the TSN switch, set corresponding priorities for different types of communication data transmitted by multiple subsystems, and preset corresponding bandwidth for each type of communication data.

[0063] Specifically, in this embodiment, in the entire comprehensive mining automation system, due to the large number of subsystems, the transmitted data streams mainly include control streams, video streams, audio streams, and sensor data streams, among which the control stream is the key stream in the system. In order to ensure the determinism and low latency of control stream data transmission, the highest priority is set for the control stream in the network, and other types of traffic are set to lower priorities. Through the gated queue setting of the TSN switch, sufficient bandwidth is reserved for high-priority data, and control data transmission with high real-time requirements is prioritized, thereby ensuring low latency and determinism of key data streams.

[0064] In specific implementation, each TSN switch such as the main TSN switch 100 and the mine ring network TSN switch 200 in the above-mentioned embodiment can be configured by the configuration unit in the switch. The gate control list (GCL) of the TSN switch in which it is located, and the priority of each type of communication data stream for data transmission is set in the gate list. The priority can be reflected by factors such as the order in which data is sent. For example, when the control flow data and the video flow data arrive at the main TSN switch 100 at the same time, since the priority of the control flow data set in the gate control list is greater than that of the video flow data, the main TSN switch 100 transmits the control flow data first to ensure low-latency transmission of key data flows.

[0065] Furthermore, the configuration unit also presets the corresponding bandwidth for each priority level of communication data, and reserves sufficient bandwidth for each type of data, wherein the bandwidth of high priority communication data is firstly ensured to meet the communication needs. In specific implementation, the configuration unit may preset the bandwidth corresponding to each type of communication data according to the priority level and data volume of each type of communication data, and make adaptive adjustments in combination with the current communication task.

[0066] It is understandable that in order to set corresponding priorities and bandwidths for different types of communication data, it is first necessary to identify various types of data in the TSN comprehensive mining automation network system. In one embodiment of the present application, different types of communication data can be identified through a preset centralized network control (CNC) controller, wherein the identified different types of communication data include: security data stream, control data stream, audio data stream, video data stream and sensor data stream.

[0067] Specifically, the CNC controller in this embodiment can be a set of software that can run on a host or server device in the system, for example, Figure 2 The CNC controller can identify different types of data streams through a dedicated protocol (eg, 802.1Qcc), thereby dynamically configuring the network to ensure stable transmission of key data streams while maximizing data communication efficiency.

[0068] Furthermore, when setting corresponding priorities and bandwidths for different types of communication data identified in the above embodiments, as a possible implementation method, the configuration unit is specifically used to: set the security data stream to the first priority and preset the first bandwidth for the security data stream; set the control data stream to the second priority and preset the second bandwidth for the control data stream; set the audio data stream to the third priority and preset the third bandwidth for the audio data stream; set the sensor data stream to the fourth priority and preset the fourth bandwidth for the sensor data stream; set the video data stream to the fifth priority and preset the fifth bandwidth for the video data stream.

[0069] Among them, the first priority is greater than the second priority, the second priority is greater than the third priority, the third priority is greater than the fourth priority, the fourth priority is greater than the fifth priority, the first bandwidth, the second bandwidth, the third bandwidth and the fourth bandwidth are low bandwidths, the fifth bandwidth is high bandwidth, and the bandwidth values ​​of the first bandwidth, the second bandwidth, the third bandwidth, the fourth bandwidth and the fifth bandwidth are determined according to the current amount of data to be transmitted.

[0070] Specifically, the device data related to security is set to the highest priority, where the security data stream can be alarm information and abnormal detection information sent by each subsystem. Since the data volume of the security data stream is usually small, a low reserved bandwidth can meet the communication needs. The control data is set to the second priority. Since the control data is a control instruction and the data volume is small, the reserved bandwidth is low. Data with high real-time requirements such as digital voice communication data is set to the third priority, and the reserved bandwidth is low. Sensor data is set to the fourth priority, and the reserved bandwidth is low. Other data such as video is set to the lowest priority. Since the data volume of video data is large, the largest bandwidth is reserved.

[0071] As described above, the bandwidth pre-set for each communication data can be adaptively adjusted in combination with the current communication task. For example, when multiple workers underground are making voice calls, the amount of digital voice communication data in the current data transmission task is large, so a larger bandwidth can be configured for the digital voice communication data.

[0072] Therefore, this application configures different priorities for different types of communication data through gating planning and configuration of TSN switches, which can ensure low-latency and reliable transmission of key data streams.

[0073] In summary, the comprehensive mining automation network system based on the time-sensitive network TSN of the embodiment of the present application constitutes the backbone network of the comprehensive mining automation network system through TSN switches set at different positions. The network communicates based on the time-sensitive network technology and can complete the transmission of each data packet in the comprehensive mining automation system with a certain delay. In addition, the system connects each subsystem and device in the comprehensive mining automation system to the TSN switch for TSN communication, unifies the communication mode of each device in the comprehensive mining automation system, and can transmit various types of data in the same network, simplifying the complexity of the entire communication network, and further reducing the delay of data transmission. In addition, the system also provides deterministic low-latency services for some key data streams through the gating planning and configuration of the TSN switch, ensuring the timely and reliable transmission of key data. As a result, the system provides a real-time, deterministic and reliable communication network for the comprehensive mining working face, improves the real-time and reliability of network data transmission, can meet the data communication needs of the automation control of the comprehensive mining working face, and is conducive to ensuring the normal and stable operation of the coal mine comprehensive mining automation system.

[0074] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0075] In addition, 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 at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0076] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0077] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being “above”, “above”, and “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0078] It should be understood that various parts of the present application can be implemented by hardware, software, firmware or a combination thereof. If implemented by hardware, as in another embodiment, it can be implemented by any one of the following technologies known in the art or a combination thereof: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, a dedicated integrated circuit having a suitable combination of logic gate circuits, a programmable gate array (PGA), a field programmable gate array (FPGA), etc.

[0079] In addition, each functional unit in each embodiment of the present application may be integrated into a processing module, or each unit may exist physically separately, or two or more units may be integrated into one module. The above-mentioned integrated module may be implemented in the form of hardware or in the form of a software functional module. If the integrated module is implemented in the form of a software functional module and sold or used as an independent product, it may also be stored in a computer-readable storage medium.

[0080] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A comprehensive mining automation network system based on a time-sensitive network, characterized in that: include: A main TSN switch, which is arranged at the fully mechanized mining working face, and a plurality of subsystems in the fully mechanized mining automation system are respectively connected to the main TSN switch through different communication modes; The main TSN switch is used to realize the communication between the comprehensive mining automation system and the outside, and to realize the communication between the multiple subsystems in combination with the TSN devices preset for the multiple subsystems.

2. The comprehensive mining automation network system according to claim 1 is characterized in that: Also includes: Multiple mine ring network TSN switches, ground TSN switches and ground TSN control terminals, among which, The main TSN switch is connected to the ground TSN switch through the multiple mine ring network TSN switches, or the main TSN switch is directly connected to the ground TSN switch, and the ground TSN switch is connected to the ground TSN control terminal; The main TSN switch is used to transmit the communication data of the multiple subsystems to the ground TSN control terminal through the multiple mine ring network TSN switches and the ground TSN switch.

3. The comprehensive mining automation network system according to claim 1 is characterized in that: Each of the TSN switches comprises: A configuration unit, the configuration unit is used to configure a gating list of the TSN switch, set corresponding priorities for different types of communication data transmitted by the multiple subsystems, and preset a corresponding bandwidth for each type of communication data.

4. The comprehensive mining automation network system according to claim 1 is characterized in that: Each of the TSN switches is a layer 2 switch, so that the above-ground network and the underground network in the comprehensive mining automation network system form the same layer 2 network.

5. The comprehensive mining automation network system according to claim 1 is characterized in that: The multiple subsystems include: a coal mining machine control subsystem, a hydraulic support control subsystem, a conveyor control subsystem, a pump station control subsystem and multiple Ethernet terminal devices. The multiple subsystems are connected to the main TSN switch through different connection methods based on their own communication methods, including: A TSN switch is integrated in the support controller of each hydraulic support, and each of the support controllers communicates through the corresponding support TSN switch; The hydraulic support control subsystem is connected to the main TSN switch via any support TSN switch; The coal mining machine control subsystem and the pump station control subsystem are directly connected to the main TSN switch.

6. The comprehensive mining automation network system according to claim 5 is characterized in that: The multiple subsystems are connected to the main TSN switch respectively through different connection modes based on their own communication modes, and further include: A corresponding TSN device is configured for each of the Ethernet terminal devices to convert the Ethernet terminal device into a TSN terminal device, and each of the TSN terminal devices is directly connected to the main TSN switch.

7. The fully mechanized mining automation network system according to claim 5 is characterized in that: The multiple subsystems are connected to the main TSN switch respectively through different connection modes based on their own communication modes, and further include: The conveyor control subsystem is connected to the main TSN switch via a TSN gateway, wherein the TSN gateway is used to convert industrial field bus communication into Ethernet communication.

8. The fully mechanized mining automation network system according to claim 3 is characterized in that: Also includes: A centralized network controls a CNC controller, wherein the CNC controller is used to identify the different types of communication data, wherein the different types of communication data include: security data stream, control data stream, audio data stream, video data stream and sensor data stream.

9. The comprehensive mining automation network system according to claim 8 is characterized in that: The configuration unit is specifically used for: Setting the security data stream to a first priority and presetting a first bandwidth for the security data stream; Setting the control data flow to a second priority and presetting a second bandwidth for the control data flow; Setting the audio data stream to a third priority and presetting a third bandwidth for the audio data stream; The first priority is greater than the second priority, the second priority is greater than the third priority, and the first bandwidth, the second bandwidth, and the third bandwidth are low bandwidths.

10. The fully mechanized mining automation network system according to claim 9 is characterized in that: The configuration unit is specifically used for: Setting the sensor data stream to a fourth priority and presetting a fourth bandwidth for the sensor data stream; Setting the video data stream to a fifth priority and presetting a fifth bandwidth for the video data stream; Among them, the third priority is greater than the fourth priority, the fourth priority is greater than the fifth priority, the fourth bandwidth is a low bandwidth, the fifth bandwidth is a high bandwidth, and the bandwidth values ​​of the first bandwidth, the second bandwidth, the third bandwidth, the fourth bandwidth and the fifth bandwidth are determined according to the current amount of data to be transmitted.

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