Coal mine communication system and control method of coal mine communication system

Abstract

The present application provides a coal mine communication system and a control method for the coal mine communication system. The system includes: an underground subsystem, which is a communication transmission system located inside the mine, and the underground subsystem at least includes a first 5G communication device and a first SPN device, and the first 5G communication device and the first SPN device are connected in communication; an above-ground subsystem, which is a communication transmission system located on the ground, and the above-ground subsystem at least includes a second 5G communication device and a second SPN device, and the second 5G communication device and the second SPN device are connected in communication, wherein the underground subsystem and the above-ground subsystem are connected in communication through the first 5G communication device, the first SPN device, the second 5G communication device and the second SPN device. This solution solves the problem of poor stability of coal mine communication systems in the prior art.

Description

Technical Field

[0001] The present application relates to the technical field of coal mine transmission networks, and in particular to a coal mine communication system, a control method for a coal mine communication system, a control device for a coal mine communication system, and a computer program product. Background Art

[0002] At present, coal mine communication systems are mainly divided into wired communication systems and wireless communication systems. Among them, wired communication systems are generally difficult to lay, inconvenient to maintain, and unstable performance due to their own structure and the special environment of the mine. Therefore, wireless communication systems can be used, and the wireless communication systems mainly use power carrier communication, leakage wireless communication, induction communication, PHS communication system, as well as mine CDMA, WiFi, 3G, 4G communication systems, etc. However, the stability of coal mine communication systems is currently poor. Summary of the invention

[0003] The main purpose of the present application is to provide a coal mine communication system, a control method for a coal mine communication system, a control device for a coal mine communication system and a computer program product, so as to at least solve the problem of poor stability of the coal mine communication system in the prior art.

[0004] In order to achieve the above-mentioned purpose, according to one aspect of the present application, a coal mine communication system is provided, including: an underground subsystem, which is a communication transmission system located inside the mine, and the underground subsystem at least includes a first 5G communication device and a first SPN device, and the first 5G communication device and the first SPN device are communicatively connected; an above-ground subsystem, which is a communication transmission system located on the ground, and the above-ground subsystem at least includes a second 5G communication device and a second SPN device, and the second 5G communication device and the second SPN device are communicatively connected, wherein the underground subsystem and the above-ground subsystem are communicatively connected through the first 5G communication device, the first SPN device, the second 5G communication device and the second SPN device.

[0005] According to another aspect of the present application, a control method for any one of the coal mine communication systems is provided, the method comprising: acquiring communication information, wherein the communication information is information on the link status of a first link currently used for communication between the underground subsystem and the surface subsystem; determining whether there is a communication abnormality in the first link based on the communication information; and in the event of an abnormality in the communication of the first link, controlling the use of a second link for communication between the underground subsystem and the surface subsystem.

[0006] According to another aspect of the present application, there is provided a control device for any one of the coal mine communication systems, the device comprising: a first acquisition unit, used to acquire communication information, wherein the communication information is information on the link status of a first link currently used for communication between the underground subsystem and the surface subsystem; a determination unit, used to determine whether there is a communication abnormality in the first link based on the communication information; and a control unit, used to control the use of a second link for communication between the underground subsystem and the surface subsystem when there is a communication abnormality in the first link.

[0007] According to another aspect of the present application, a computer program product is provided, comprising a computer program, wherein when the computer program is executed by a processor, the steps of any one of the control methods of the coal mine communication system are implemented.

[0008] By applying the technical solution of the present application, SPN equipment is added to the original coal mine communication system. Since SPN equipment has the characteristics of high reliability and high precision, this solution can use SPN equipment to enhance the stability and coverage of the original 5G network, thereby making the coal mine communication system of this solution more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] The drawings constituting part of the present application are used to provide a further understanding of the present application. The exemplary embodiments and descriptions of the present application are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0010] Figure 1 A schematic diagram of the structure of a coal mine communication system according to an embodiment of the present application is shown;

[0011] Figure 2 A schematic diagram showing the networking structure of this solution is shown;

[0012] Figure 3 A schematic diagram showing the construction of the communication network of this solution is shown;

[0013] Figure 4 A hardware structure block diagram of a mobile terminal for executing a control method for a coal mine communication system provided in an embodiment of the present application is shown;

[0014] Figure 5 A schematic flow chart of a control method for a coal mine communication system provided according to an embodiment of the present application is shown;

[0015] Figure 6 A schematic diagram showing another process of networking of this solution is shown;

[0016] Figure 7 A structural block diagram of a control device for a coal mine communication system provided according to an embodiment of the present application is shown.

[0017] The above drawings include the following reference numerals:

[0018] 102, processor; 104, memory; 106, transmission device; 108, input and output devices. DETAILED DESCRIPTION

[0019] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0020] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described 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, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0021] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequential order. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present application described here. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0022] At present, power carrier communication, leakage wireless communication, induction communication, and PHS communication systems have shortcomings such as poor anti-interference ability, poor adaptability to the use environment, and inability to achieve full signal coverage; WiFi and 4G communication systems that can guarantee better voice, image, and video transmission performance have become the first choice for coal mine wireless communication systems, and their performance basically meets the data communication needs of the main coal mining business.

[0023] The transmission network is a network used as a transmission channel. It is generally built under the switching network, data network and support network to provide signal transmission and conversion. It belongs to the basic network of the above three networks. The transmission network generally studies optical cables, copper wires, signal amplifiers, interfaces, connectors, interface converters, microwave systems, PDH, SDH, WDM, ASON and satellites.

[0024] In coal mining, it is necessary to have all-round coverage of underground signals, which requires good coverage of the transmission network, and the performance of the transmission network needs to be improved or stabilized. Repeaters, optical cables and SPN equipment are used to provide all-round coverage of signals above and below the well.

[0025] In coal mining, it is necessary to provide all-round coverage of underground signals, which requires good coverage of the transmission network, and the performance of the transmission network needs to be improved or maintained stable. Repeaters, optical cables and SPN equipment are used to provide all-round coverage of signals above and below the well. Based on the geological structure of the mining area and the location of the equipment in the machine room, the mining industry has a lot of application space. It provides more effective equipment networking to reduce the load of equipment boards and ensure the safety of base station side equipment, improve the coverage of the transmission network, meet the planning, construction, maintenance and management requirements of the transmission network in the new era, and solve the problems of low configuration efficiency, too much reliance on manual experience for arrangement, and the configuration plan is difficult to meet the objective actual needs and low accuracy.

[0026] As introduced in the background technology, the stability of the coal mine communication system in the prior art is poor. To solve the above problems, the embodiments of the present application provide a coal mine communication system, a control method for a coal mine communication system, a control device for a coal mine communication system and a computer program product.

[0027] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0028] This application provides a coal mine communication system, such as Figure 1 As shown, including:

[0029] An underground subsystem, wherein the underground subsystem is a communication transmission system located inside a mine, and the underground subsystem comprises at least a first 5G communication device and a first SPN device, and the first 5G communication device is communicatively connected with the first SPN device;

[0030] The above-hole subsystem is a communication transmission system located on the ground, and the above-hole subsystem at least includes a second 5G communication device and a second SPN device, and the above-mentioned second 5G communication device and the above-mentioned second SPN device are communicatively connected, wherein the above-mentioned downhole subsystem and the above-hole subsystem are communicatively connected through the above-mentioned first 5G communication device, the above-mentioned first SPN device, the above-mentioned second 5G communication device and the above-mentioned second SPN device.

[0031] Through this embodiment, SPN equipment is added to the original coal mine communication system. Since the SPN equipment has the characteristics of high reliability and high precision, this solution can use SPN equipment to enhance the stability and coverage of the original 5G network, thereby making the coal mine communication system of this solution more stable.

[0032] Specifically, the coal mine communication system also includes a controller, and the controller is used to execute the control method of the coal mine communication system.

[0033] Specifically, the underground subsystem is a dedicated communication transmission system located inside the mine, which is mainly responsible for the communication tasks inside the mine, including the transmission of various information such as data, voice, and video. The first 5G communication device is one of the core devices of the underground subsystem, which can provide 5G wireless communication services and support functions such as high-speed data transmission, low latency, and large-scale connection. The first 5G communication device usually includes a 5G base station unit (BBU) and a 5G radio frequency unit (AAU), which are responsible for processing the digital signal processing of wireless signals and the transmission and reception of wireless signals. The SPN device is a device specially designed for 5G transmission networks, which supports network slicing, low-latency forwarding, and advanced resource scheduling. In the underground subsystem, the first SPN device is responsible for connecting the first 5G communication device, providing a high-speed transmission channel, and ensuring the transmission efficiency and stability of data from underground to above ground. A communication connection is established between the first 5G communication device and the first SPN device, which means that the 5G base station and the transmission network are effectively integrated underground, ensuring that the wireless signal can quickly and stably reach the ground or other underground nodes through the transmission network.

[0034] Specifically, the above-ground subsystem is located on the ground and is a communication transmission system outside the mine. It is used to process and forward communication data from the underground subsystem, and also supports two-way communication between the ground and the underground. The second 5G communication device is a 5G base station in the above-ground subsystem, which is used to provide 5G wireless communication services on the ground and work with the 5G equipment of the underground subsystem to achieve seamless communication inside and outside the mine. The SPN device also plays the role of a transmission gateway in the above-ground subsystem. It connects the second 5G communication device and other ground network equipment, such as the core network and data room, to form a high-speed transmission channel. A communication connection is also established between the second 5G communication device and the second SPN device, which ensures data transmission from the ground to the underground, as well as uplink transmission of underground data. The above-ground subsystem is also connected to ground facilities such as the core network and data room to form a complete communication link.

[0035] Specifically, the communication connection between the underground subsystem and the surface subsystem is completed through the first 5G communication device, the first SPN device, the second 5G communication device and the second SPN device. The optical cable is the key physical link connecting the underground and the surface, and is used to transmit signals and data. At both ends of the optical cable, the 5G communication devices in the underground and the surface are connected together through the first SPN device and the second SPN device, forming a closed transmission ring network.

[0036] Through the connection of the above-mentioned devices, wireless signals and data can be transmitted from underground to the surface, and vice versa, realizing two-way communication inside and outside the mine. Using SPN equipment and dual physical loop design, even if a link fails, the system can automatically switch through the backup link to ensure the continuity and stability of communication. The connection between underground and surface equipment also supports bandwidth upgrades and network slicing technology, which means that the system can allocate different network resources according to different business needs, provide customized services, and provide a solid foundation for future intelligent mining and safety monitoring.

[0037] In short, this coal mine communication system has built an efficient, stable and intelligent communication network through the integration of two subsystems, underground and above ground, and the use of advanced 5G communication equipment and SPN equipment. It not only meets the daily communication needs of coal mines, but also provides the necessary communication infrastructure for the intelligent transformation of coal mines.

[0038] Specifically, the solution of the present application enhances the stability and coverage of the 5G network by establishing dual physical loops above and below the well, using SPN (Slicing Packet Network) equipment and repeaters, etc., while using blockchain technology to optimize network configuration and management.

[0039] Specifically, SPN (Slicing Packet Network) equipment is a new type of transmission network equipment designed to meet the needs of 5G and future networks. It introduces new features and functions based on traditional transmission networks to support the three major application scenarios of 5G networks: enhanced mobile broadband (eMBB), massive machine type communication (mMTC) and ultra-reliable low latency communication (URLLC). Compared with traditional transmission equipment, SPN equipment has the following significant advantages:

[0040] Support network slicing: SPN devices can create and manage multiple independent network slices, each of which can provide customized services for different business types and needs. For example, eMBB slices provide high-bandwidth transmission, URLLC slices provide low-latency, high-reliability transmission, and mMTC slices focus on large-scale connections. This capability makes SPN devices very suitable for the diverse business needs of 5G networks.

[0041] Improve latency performance: SPN devices use flexible low-latency forwarding mechanisms, such as FlexE (Flexible Ethernet) technology, which can significantly reduce the transmission delay of data packets, which is crucial for applications such as remote control and autonomous driving in URLLC scenarios.

[0042] Enhanced network reliability: SPN devices support high-level redundancy and fault recovery mechanisms, such as 1+1 protection for the main control board, 1+1 protection for the switch board, and 1+1 protection for the power board. This means that even if a component fails, the device can seamlessly switch to the backup component to ensure the continuity of network services.

[0043] High bandwidth capability: SPN equipment provides high-bandwidth transmission capability and supports multiple high-speed interfaces, such as 25G, 50G, 100G, 200G, etc. It can meet the needs of 5G networks for large-bandwidth transmission, and also provide sufficient bandwidth resources for future network upgrades.

[0044] Flexible resource scheduling: SPN equipment can dynamically adjust resource allocation according to network needs, such as through time slot scheduling and frequency domain resource division, to achieve efficient resource utilization. This is particularly important in the dynamic business environment of 5G networks, and can quickly respond to changes in business needs.

[0045] Simplify network architecture: SPN devices reduce the number of devices in the network, simplify the network architecture, and reduce operation and maintenance costs by providing highly integrated and high-density interfaces. At the same time, SPN devices support link aggregation technology, further enhancing the network's fault tolerance and bandwidth efficiency.

[0046] Compatibility and scalability: SPN equipment is designed with compatibility with existing network equipment in mind. It also has good scalability, facilitates smooth network upgrades and expansions, and supports the evolution from 4G to 5G.

[0047] Support for multi-service carrying: SPN equipment can carry multiple types of services simultaneously, including traditional circuit switching services, IP data services, and emerging 5G slicing services, providing network operators with flexible service deployment and management capabilities.

[0048] Intelligent management: SPN devices are usually integrated with intelligent management functions, which can automatically monitor the network operation status, perform fault detection and self-repair, and support centralized network control based on SDN (Software Defined Networking), thus improving the intelligent operation and maintenance level of the network.

[0049] In summary, the advantage of SPN equipment is that it can provide flexible, efficient and reliable network transmission services, which is particularly suitable for the complex requirements of 5G networks, including large bandwidth, low latency and large-scale connections, which is crucial for the intelligent construction and safe operation of industrial scenarios such as coal mines.

[0050] Specifically, the solution of this application adds equipment to support 5G network slicing, which can allocate network resources according to different business scenarios to meet the continuous coverage and multi-scenario business requirements of 5G networks. At the same time, the transmission equipment (such as the main control board, switch and power board) adopts a 1+1 protection mechanism to enhance the redundancy and stability of the equipment, so that the network can still operate even if some equipment fails.

[0051] Specifically, the aboveground part usually refers to the communication facilities and management equipment on the ground. In the 5G transmission ring network system for coal mining, the aboveground part includes the following key components:

[0052] Data room: used to centrally manage communication data inside and outside the mine. It is the control center of the network and may include core network equipment, servers, storage devices, etc.

[0053] SPN equipment (Slicing Packet Network): SPN equipment is an important part of the 5G transmission network. It can provide network slicing function, that is, providing customized logical networks for different types of services on the physical network to meet diverse quality of service (QoS) requirements.

[0054] Aggregation node: An aggregation node is a node in the network used to aggregate and distribute data. It aggregates communication data from different directions and sends it to the destination through an optimized path. It can also distribute data from one center to multiple directions.

[0055] Management platform: used to monitor and schedule the operation status of the entire network, including the health of transmission links, traffic management of communication data, automatic detection and recovery of faults, etc.

[0056] The underground part refers to the communication facilities inside the mine. The environment in this part is more complex and harsh. The communication design needs to consider the unique conditions underground, such as:

[0057] Ring network SPN equipment: SPN equipment deployed underground is interconnected through a ring network structure to form a closed ring network. This design improves the redundancy and fault recovery capabilities of the network.

[0058] 5G BBU equipment (Base Band Unit): BBU is the core component of the 5G base station and is responsible for baseband processing of signals, including data modulation, demodulation, encoding and decoding.

[0059] Repeater: Used to amplify and transmit signals in underground environments, overcome the problem of signal attenuation, and ensure that the signal can be transmitted over long distances while maintaining good quality.

[0060] Underground central substation transmission equipment: These devices are located in key locations in the mine and are responsible for the conversion and distribution of underground power and communication signals. They are important nodes in the underground communication network.

[0061] The aboveground and underground parts are connected to each other through physical connections such as optical cables to form a complete transmission network system. The aboveground part is responsible for management and scheduling, while the underground part is responsible for specific data collection, transmission and monitoring tasks. The two parts work together to achieve efficient communication inside and outside the mine. In coal mining, the effective integration and optimization of the aboveground and underground communication systems play a vital role in ensuring mining safety, improving mining efficiency and realizing intelligent mining.

[0062] Specifically, the dual routing of the solution of the present application generally refers to a redundant design strategy for key data transmission paths in order to improve the reliability and fault tolerance of the network. Dual routing means providing two independent physical paths for the transmission of data or signals. These two paths can transmit data in parallel under normal circumstances, but when one of the paths fails, the data can automatically switch to the other path for transmission, thereby maintaining the continuity of communication and service quality.

[0063] In underground and above-ground communication networks, optical cables are the primary physical medium for data transmission. Dual-route optical cables mean that there are at least two different optical cable paths from one node to another. The purpose of this is that even if one of the optical cables stops working due to damage or maintenance, data can continue to be transmitted through the backup optical cable, ensuring the stability of the network and meeting bandwidth requirements.

[0064] The "formation of a dual physical loop of no less than 50G" mentioned in the system refers to the use of a ring network structure to provide dual routing protection. A ring network is a network topology in which all nodes are connected by two links to form a closed ring. In a ring network, data can be transmitted in two directions. If the main transmission path fails, the data can automatically switch to the backup path. This strategy is particularly important in coal mine environments because geological conditions and equipment failures may cause link interruptions.

[0065] The dual-link connection between the aggregation layer node and the SPN device ensures that even if one link fails, the node can still maintain connection with the network through the other link. This design reduces the impact of single point failure on the entire network and improves the reliability of data transmission.

[0066] The private network base station is connected to the operator's To C (consumer-oriented) core network and To B (enterprise-oriented) core network at the same time. This can also be regarded as a dual routing strategy, ensuring that even if one core network has problems, the base station can still provide services through another network and maintain stable operation of the network.

[0067] Dual-route design is a common redundancy strategy in network planning. Its purpose is to quickly and automatically switch to the backup path when the main path fails, avoid service interruption, and improve network availability and robustness. In industrial applications such as coal mines, due to the complexity of the network environment and potential high risks, dual-route protection is particularly critical. It provides additional security for data transmission and ensures that the communication network can continue to provide stable services even under harsh conditions.

[0068] During the specific implementation process, the above-mentioned underground subsystem also includes a BBU device and a first substation. The BBU device is used to preprocess the transmitted signal, wherein the preprocessing method includes one or more of encoding, decoding, modulation and demodulation; the first substation is used to realize power conversion underground, wherein the above-mentioned first 5G communication device, the above-mentioned first SPN device, the above-mentioned BBU device and the above-mentioned first substation form a first ring network communication connection.

[0069] In this solution, the addition of BBU equipment and the first substation, as well as the first ring network communication connection formed by them, the first 5G communication equipment and the first SPN equipment, are of great significance for building a stable, efficient and safe coal mine communication system.

[0070] Specifically, the BBU device (Baseband Unit) is one of the core components in the 5G communication system and is mainly responsible for signal preprocessing. Preprocessing refers to a series of processing steps performed before and after the signal is sent, including but not limited to encoding, decoding, modulation, and demodulation. These processing steps are crucial to ensure accurate transmission and reception of data.

[0071] Coding is the process of converting raw data into a signal format suitable for transmission, while decoding is the process of restoring the transmitted signal format to the original data at the receiving end. Coding can improve the security and efficiency of data transmission, while decoding ensures the accuracy of data.

[0072] Modulation is the process of converting digital data into analog signals for transmission over wireless channels; demodulation is the opposite, converting the received analog signals back into digital data. The modulation and demodulation processes can enhance the signal's anti-interference and transmission distance.

[0073] By performing these pre-processing functions, the BBU device ensures the transmission quality and stability of wireless signals in the complex environment underground, providing reliable data communication capabilities between miners and the ground control room.

[0074] The first substation plays a key role in the underground subsystem of the coal mine communication system, and is responsible for realizing power conversion underground. In the mine environment, the power supply may come from different power sources, such as the ground power grid, underground batteries or generators. The task of the first substation is to convert this power into a stable power supply suitable for underground communication equipment, including providing power support for 5G communication equipment, SPN equipment and BBU equipment.

[0075] The first ring network communication connection is composed of the first 5G communication equipment, the first SPN equipment, the BBU equipment and the first substation. The ring network design is a redundant network architecture that is usually used to improve the reliability and stability of the network. In the coal mine communication system, the ring network design allows data to continue to be transmitted through other paths even if a node or link fails, which significantly improves the robustness and reliability of the network. Resources in the ring network (such as bandwidth and power) can be allocated and utilized more efficiently, avoiding the waste of resources and inefficiency in the single path design. Due to the resource scheduling and link optimization in the ring network design, the delay of data transmission can be reduced, which is crucial for applications such as real-time monitoring and control. The ring network structure supports two-way data and signal transmission, which not only enables data from underground to above ground, but also enables control instructions and data transmission from above ground to underground, enhancing the communication flexibility of the system. As part of the ring network, the first substation ensures the stability of power supply and provides guarantee for the continuous operation of communication equipment.

[0076] Specifically, the underground main substation is generally called the central substation, which is usually arranged together with the central water pump room (main drainage pump chamber) on the side of the bottom of the auxiliary shaft away from the main shaft, connected to the auxiliary shaft through a pipe, and connected to the horizontal tunnel of the bottom of the shaft through a passage.

[0077] This section introduces the role of the substation. Power conversion and distribution: The substation is responsible for converting the high-voltage electricity received from the power grid into low-voltage electricity suitable for use by equipment inside the mine. In coal mining, due to the particularity of the underground environment, the safe supply and distribution of electricity is crucial. The substation uses complex power conversion equipment and cable networks to ensure that all electrical equipment underground, including communication equipment, can obtain a stable and safe power supply. Communication signal transmission: In addition to power conversion, the central substation also undertakes the task of signal transmission in this system. It becomes an important node in the underground communication network through connection with transmission network equipment (such as SPN equipment), helping the transmission of signals between underground and above ground. The transmission equipment in the substation may include optical cable interfaces, repeaters, etc. to enhance the quality and stability of signal transmission.

[0078] This section introduces the role of BBU equipment (Base Band Unit). Signal processing core: In the 5G communication system, the BBU equipment is the core part of the base station and is responsible for the processing of baseband signals, including data encoding, decoding, modulation and demodulation. It is equivalent to the "brain" of the base station, which performs advanced processing on the signal and then transmits or receives it wirelessly through the RRU (Radio Frequency Unit). Network resource control: The BBU equipment is also responsible for managing the network resources of the base station, including frequency resources, time slot resources, etc., to ensure the efficiency and optimization of data transmission. In the C-RAN (centralized radio access network) architecture, multiple physically separated RRUs can be connected to the centrally deployed BBU through optical fiber. The BBU is responsible for unified resource scheduling and signal processing for all connected RRUs, thereby improving the overall performance and flexibility of the network. Interface with the transmission network: The BBU equipment is connected to the transmission network equipment (such as SPN equipment) through the interface, transmits the processed data or received data to the transmission network, and further communicates with the well data room or other network nodes to realize data interaction and transmission.

[0079] Specifically, the coal mine communication system of this solution can also be called a 5G transmission ring network system based on blockchain technology, including an underground part and an above-ground part. The underground part includes a ring network SPN device and underground 5GBBU equipment. The underground central substation transmission equipment, underground SPN equipment and underground BBU equipment form a closed ring network.

[0080] Specifically, ring network SPN equipment and 5G BBU equipment are deployed underground to form a closed ring network with the SPN equipment and aggregation node equipment in the data room above ground. The dual route protection of optical cables and repeaters enhances the redundancy of the network. Even if a route fails, data transmission can still be carried out through another route, ensuring the continuity and security of the network.

[0081] Specifically, SPN (Slicing Packet Network) equipment and 5G BBU (Base Band Unit) equipment are deployed in the underground environment. SPN equipment is an advanced network device that can support network slicing, that is, providing customized logical networks for different types of services on the physical network to meet different quality of service (QoS) requirements. 5G BBU is the core component of the 5G base station, responsible for processing baseband signals, including data modulation, demodulation, encoding and decoding. The SPN equipment and 5G BBU equipment underground form a closed ring network structure with the SPN equipment and aggregation node equipment in the data room above the well. This ring structure is a common redundant design in the transmission network, which can provide self-healing capabilities. When a node or link on the ring fails, the network can automatically bypass the fault point to ensure the continuity of data transmission. In order to further enhance the stability and fault tolerance of the network, a dual routing protection strategy is adopted. This means that two independent paths are provided for data transmission in the network through optical cables and repeaters. Under normal circumstances, data may be transmitted through only one of the paths, but when this path is interrupted for some reason (such as optical cable breakage, equipment failure, etc.), data transmission can be immediately switched to another backup path, thus avoiding communication interruption and ensuring the security and continuous operation of the network. Optical cables provide high-speed and stable signal transmission, which is the basis for building dual-route protection. Repeaters are used to amplify signals in underground environments to overcome the problem of signal attenuation and ensure that signals can maintain good quality across long distances underground. The dual-route design of optical cables and repeaters can ensure high efficiency and stability of data transmission even in the complex and changeable underground environment of coal mines.

[0082] In some embodiments, the above-mentioned well subsystem also includes a second substation and a data room, the second substation is used to realize power conversion in the well; the data room is used to store the transmitted data, wherein the above-mentioned second 5G communication equipment, the above-mentioned second SPN equipment, the above-mentioned second substation and the above-mentioned data room form a second ring network communication connection.

[0083] In this solution, the construction of the second ring network communication connection provides the coal mine communication system with efficient, stable and secure on-site data transmission and management capabilities through power conversion in the second substation, data storage and processing in the data room, and communication support between the second 5G communication equipment and the second SPN equipment. It is an important technical foundation for realizing intelligent mine management and improving mine safety and production efficiency.

[0084] Specifically, the main function of the second substation is to realize the power conversion on the well, that is, to convert the power from the external power grid into a stable power supply suitable for the communication equipment and other facilities on the well. This power conversion is very important because it ensures that the entire well subsystem, including 5G communication equipment, SPN equipment and data room, can obtain a stable and reliable power supply, which is a prerequisite for the normal operation of the system.

[0085] The data room is the core facility in the mine subsystem, used to store, process and forward transmitted data. In the coal mine communication system, the data room plays the role of a data center. It not only stores the data collected underground and above the mine, but also performs preliminary processing and analysis of the data through its internal servers and storage devices, providing support for subsequent data analysis, monitoring and decision-making.

[0086] The second ring network communication connection consists of the second 5G communication equipment in the well subsystem, the second SPN equipment, the second substation and the data room. The ring network is a high-availability network architecture. Its advantage is that even if a part of the network fails, data can still be transmitted through other paths, thus ensuring the continuity and reliability of the network.

[0087] Through the power conversion and distribution of the second substation, the well subsystem can obtain stable and efficient power supply. This high-reliability power supply is the key to ensuring the continuous operation of well communication equipment and data rooms, especially in the event of power grid failure or power fluctuations, the second substation can quickly switch to the backup power supply to ensure that the system is not interrupted.

[0088] The existence of a data center enables data to be centrally stored and processed, reducing data transmission delays and improving data processing speed and efficiency. This is extremely important for scenarios that require real-time data transmission and analysis, such as real-time monitoring of mine safety status, control of robots or automation equipment, etc.

[0089] The design of the second ring network communication connection significantly enhances the fault tolerance and stability of the well subsystem. Even if a component (such as the second 5G communication equipment or data room) fails, data and signals can still be transmitted through other paths of the ring network, which greatly reduces the risk of single point failure and ensures the continuity of communication and data security.

[0090] The ring network communication connection also supports efficient data transmission. Through the network slicing and resource scheduling capabilities of the second SPN device, the optimal transmission path and resources can be allocated for different types of services (such as high-definition video streaming, real-time control instructions, massive sensor data, etc.), thereby improving the efficiency and quality of data transmission.

[0091] The design of the second ring network communication connection enables the various components within the well subsystem to be integrated and managed, facilitating the overall monitoring and optimization of the network. For example, the central management platform can monitor the network's operating status in real time, perform fault detection, resource allocation, and performance optimization, ensuring that the entire system is in the best operating state.

[0092] Specifically, Figure 2 and Figure 3 As shown, the above-ground part includes a data room, SPN equipment and a central substation SPN to form a closed ring network. The SPN equipment in the data room above the well and the aggregation node also form a loop, forming a ring network with the constructed transmission equipment. The SPN equipment forms a loop with the central substation and the data room, and the automatic switching function of the transmission equipment is used to ensure the safety of the equipment on the ring.

[0093] Constructed transmission equipment usually refers to communication equipment that has been installed and put into use, which is used for data transmission and exchange. This may include optical fibers, cables, wireless communication equipment, switches, routers, etc.

[0094] An aggregation node is a point in a network that connects multiple networks or network segments so that data can be transmitted between them. In a data center or network architecture, an aggregation node is usually a high-performance device, such as a switch or router, that can handle large amounts of data traffic.

[0095] SPN equipment refers to the equipment in the data center. SPN is the abbreviation of "Switched Power Network" in English, which is "Switched Power Network" in Chinese. It is a way of operating a power system, in which power can be distributed among different users as needed.

[0096] Specifically, this paragraph introduces the role of the data room. Data storage and processing: The data room is the information center of the entire communication system, in which high-performance servers, storage devices and network equipment are deployed to store, process and manage large amounts of data from underground and other network nodes. In the context of 5G networks and blockchain technology, the data room may also be responsible for tasks such as encryption, verification and distributed storage of data to ensure the security and integrity of the data. Core network control: The equipment in the data room may also include control nodes of the core network, such as UPF (User Plane Function), AMF (Access and Mobility Management Function), etc. They are responsible for the processing of user data, the allocation and management of network resources, and the control of access points to ensure the operating efficiency of the entire network and the quality of user services.

[0097] The data room contains a large number of storage devices, such as hard disk arrays, solid-state drives (SSDs), and tape libraries, which are used to store various data transmitted from underground, including but not limited to coal mine production data, environmental monitoring data, video surveillance data, equipment status data, etc. These data are crucial for analyzing the operating efficiency of coal mines, ensuring mining safety, and realizing intelligent management.

[0098] The data center not only stores data, but also processes it. It may contain high-performance servers and computing resources for running complex data analysis algorithms, machine learning models, and artificial intelligence applications. These processing capabilities enable the data center to analyze data transmitted from the well in real time, identify potential safety risks, optimize production processes, and support decision-making.

[0099] The data center is the center of the entire 5G network control. It contains core network equipment such as UPF (user plane function), AMF (access and mobility management function), SMF (session management function), etc. These devices are responsible for managing user data, network resource allocation, access control and session management. Through these devices, the data center can control and coordinate the entire transmission ring network system to ensure the continuity and high quality of network services.

[0100] The data room is connected to the external Internet or other networks through its network equipment to provide communication services inside and outside the mine. In the coal mine environment, this means that the data room must not only support the transmission of internal data, but also be able to connect to the external operator network to provide voice, data, video and other communication services for underground personnel. In addition, the data room may also be responsible for interacting with the blockchain network to ensure the distributed storage and security verification of data.

[0101] Due to the sensitivity of data and network control, data rooms must be equipped with advanced security measures, including physical security, network security and data encryption, to protect the stored and processed information from unauthorized access and attacks. At the same time, data rooms are usually designed with redundant power supplies and network connections, as well as data backup and disaster recovery systems to ensure that critical data and network services can be quickly restored in the event of a failure or disaster.

[0102] The data room may also have a technical support center equipped with a professional IT and communications technology team responsible for monitoring the operating status of the room, troubleshooting and equipment maintenance, and ensuring that all systems can continue to operate stably.

[0103] During the specific implementation process, the above-mentioned coal mine communication system also includes multiple optical cables and repeaters, and the above-mentioned underground subsystem and the above-mentioned surface subsystem are communicatively connected via at least one of the above-mentioned optical cables; the repeater is located in the transmission path of all the above-mentioned optical cables, and the above-mentioned repeater is used to amplify the transmitted signal.

[0104] In this solution, in the 5G transmission ring network system of the coal mine, optical cables and repeaters together constitute the physical network for data and signal transmission. Optical cables provide high-speed and stable data transmission channels, while repeaters ensure signal coverage and quality in complex environments through signal amplification and network expansion. The combination of the two, plus the dual-route protection design, jointly builds an efficient, stable and reliable communication network to support the intelligent and safe mining needs of coal mines.

[0105] Specifically, optical cables transmit data through optical signals, providing higher bandwidth and lower transmission loss than traditional cables, which is very suitable for the large data volume transmission needs of 5G networks. In coal mines, optical cables connect the communication equipment underground with the data room and management platform above the mine to ensure high-speed and stable transmission of data. The internal environment of the mine is complex, and there are problems such as electromagnetic interference and signal attenuation. Due to its physical properties, optical cables can effectively resist these interferences and ensure the quality and stability of signal transmission. Even in long-distance transmission, optical cables can maintain the integrity and clarity of the signal. The plan mentions the use of optical cables for dual-route protection, that is, each transmission path has at least one backup optical cable path. This is to ensure that when the main optical cable fails, the data can automatically switch to the backup optical cable to ensure the continuity and reliability of the network.

[0106] Specifically, repeaters are deployed in the optical cable transmission path, especially in areas where the signal is attenuated or a large area needs to be covered. They can receive, amplify and forward signals to ensure that 5G signals can pass through the complex environment of the mine and achieve effective coverage over long distances or large areas. Repeaters can help expand the coverage of 5G networks, especially in closed spaces such as underground. By deploying multiple repeaters, a dense signal transmission network can be built to ensure that each operating point underground can receive high-quality 5G signals. The ring network structure built by repeaters can improve the redundancy and fault tolerance of the network. Even if a section of optical cable or a repeater fails, data can be transmitted through other paths to reduce the risk of network interruption. Repeaters do not require complex routing decisions during signal transmission and can achieve rapid forwarding of communication data, which is crucial for application scenarios that require high bandwidth and low latency, such as real-time video monitoring and remote equipment control.

[0107] Specifically, downhole and surface signals are connected by connecting optical cables, and the optical cables that can be used are 48-core and 72-core.

[0108] Specifically, several repeaters are arranged in the underground part, and the repeaters are located at the entrance well. The two ends of the repeaters are connected to the number, and the time domain resource granularity of the communication data transmission resource is used as the scheduling unit. The frequency domain resources of the communication data transmission are divided into at least one transmission resource set, and the time slots of the communication data are numbered in sequence to obtain the time slot number, and the time slot number is used as the time slot information. The time slot number and the transmission resource set are determined by calculation processing to achieve the signal loop closure in the well. Through the connection between the repeater and the transmission network, the communication data can be transmitted between the repeaters without routing, and there is no need for repeated debugging, thereby realizing low-latency communication and improving communication efficiency and effect.

[0109] Specifically, underground, repeaters are strategically placed at the manhole locations. These repeaters serve as signal enhancement and forwarding nodes to ensure that 5G signals can cover all areas in the underground that require communication. Both ends of the repeater are connected to the underground SPN equipment and 5G base station (BBU) to form a signal transmission node.

[0110] In 5G networks, time domain resources and frequency domain resources are key resources for transmitting data. The granularity of time domain resources usually refers to time slices or time slots, while frequency domain resources refer to the available frequency bandwidth. The system divides frequency domain resources into at least one transmission resource set, so that spectrum resources can be flexibly allocated and managed according to different business requirements and network conditions.

[0111] Next, the system numbers the time slots of the communication data and numbers the time slots in chronological order. These time slot numbers are used as time slot information to schedule the transmission of communication data. By determining the set of transmission resources corresponding to each time slot, the system can effectively manage the data transmission within the time slot and ensure that the data is sent and received within the specified time and frequency band.

[0112] Timeslot numbering and scheduling is one of the key technologies to achieve efficient resource allocation and data transmission. 5G networks use a mode called Time Division Duplex (TDD), in which time domain resources are divided into a series of timeslots, each of which has a specific time range for uplink or downlink communication. The following is a detailed explanation of the process and role of timeslot numbering and scheduling:

[0113] The time slot in the 5G network is the basic time unit in the TDD mode. A certain amount of data can be transmitted in each time slot. The length of the time slot depends on the parameter configuration of the 5G network. Usually, each time slot contains multiple symbol periods (SymbolPeriods), and each symbol period can carry multiple data units.

[0114] To manage these time slots, the system numbers them, that is, assigns a unique digital identifier to each time slot. This numbering is usually done in chronological order, based on the direction of time flow, so that the system can track and manage the use of each time slot. Time slot numbering helps in scheduling and allocating time slots, as well as making flexible adjustments when needed.

[0115] In addition to the time slot division, the system also divides the frequency domain resources to form a transmission resource set. Each set contains a specific set of frequency resources for carrying data transmission. This resource division can be dynamically adjusted based on business needs, network load, signal quality and other factors to ensure efficient use of resources.

[0116] Through calculation and processing, the system determines which set of transmission resources each time slot number matches. This means that within a specific time slot, data will be transmitted using a specific frequency band. This process involves complex resource scheduling algorithms that aim to balance network load, improve transmission efficiency, reduce interference, etc., to ensure that data is sent and received under optimal conditions.

[0117] Scheduling decisions take into account a variety of factors, including but not limited to the real-time status of the network, service priorities, user needs, and network quality. The system may use predictive algorithms, machine learning, or artificial intelligence techniques to optimize the matching of time slots and resource sets based on current and predicted network conditions to achieve the best transmission performance.

[0118] Once the time slot number and the transmission resource set are matched, the system will transmit data on the specified time slot and frequency band according to the scheduling plan. In this way, both the data sender and the receiver know when and where to communicate, thus avoiding resource conflicts and improving the reliability and efficiency of transmission.

[0119] Timeslot numbering and scheduling technology is the core of 5G network resource management. It is not only applicable to ground communication environments, but also to complex underground environments. In industrial scenarios such as coal mines, through precise timeslot scheduling and resource allocation, the system can overcome the challenges of underground environments, such as signal attenuation, multipath effects, and high latency, ensuring stable transmission of real-time data, video, and control information, and providing necessary communication support for intelligent mining and safety monitoring.

[0120] The system uses computational processing to determine which time slot numbers match which frequency domain resource sets. This involves complex resource allocation algorithms that may consider multiple factors such as network load, priority, link quality, etc. to achieve optimal data transmission scheduling. For example, the system can prioritize idle or lightly loaded frequency band resources to high-priority service time slots.

[0121] In the underground part, a closed loop of signal transmission is formed through the arrangement of repeaters and the above-mentioned time slot scheduling technology. This loop uses the automatic switching function of the transmission equipment to ensure that even if a link or device has problems, data transmission can continue through other paths, thereby achieving network robustness and continuous signal coverage. Communication data can be transmitted between repeaters without routing, that is, data packets do not need to make complex routing decisions on each repeater, but are directly forwarded based on the information of the time slot number and frequency domain resource set, which greatly reduces transmission delay and improves communication efficiency.

[0122] A management platform is set up on the surface of the well, which is used to monitor and schedule the transmission link and the communication data. The loop downhole is connected to the management platform via optical cable transmission. The transmission link transmits signals through electromagnetic waves, such as Wi-Fi, Bluetooth and mobile communication technologies (such as 4G / 5G). A management platform is set up on the surface of the well, combined with blockchain technology, to achieve effective monitoring and scheduling of the transmission link, as well as efficient scheduling of communication data. Blockchain technology can ensure the accuracy and security of network configuration through its decentralization and immutability, avoid over-reliance on manual experience, and improve configuration efficiency and accuracy.

[0123] Specifically, optical cables are the most common physical medium for communication between the surface and underground. Optical cables can provide high-speed and stable communication links, which are very suitable for bandwidth-intensive applications such as transmitting large amounts of data and high-definition video. In coal mine environments, optical cables are usually laid from the data room to the underground, connecting the SPN equipment of the underground central substation and the underground 5G BBU equipment to form a closed loop network. The dual-route protection design of the optical cable ensures that even if one route is damaged, data can still be transmitted through another route, improving the redundancy and reliability of communication.

[0124] The space inside the mine is vast, and signal transmission is easily affected by obstacles and geological structures. Repeaters are deployed at key locations underground to amplify and forward signals, ensuring that signals can effectively pass through the mine environment and achieve seamless communication between underground equipment and the control center above the mine. Repeaters can be connected to the transmission network through wired methods (such as optical cables), or communicate with other repeaters or ground equipment through wireless methods (such as 5G signals).

[0125] The application of 5G wireless communication technology in the underground part provides high-bandwidth, low-latency and high-reliability wireless communication capabilities. The 5G base station (including BBU and RRU) is installed underground and communicates with the underground equipment and the SPN equipment on the well through wireless signal transmission. This wireless communication method is particularly suitable for real-time monitoring and data transmission of mobile equipment underground.

[0126] SPN equipment (Slicing Packet Network) is deployed both above and below ground. It plays a core role in network slicing, data processing and transmission. Above ground, SPN equipment connects the data room and aggregation node, responsible for data aggregation and distribution; below ground, SPN equipment forms a closed loop network with BBU equipment to process and transmit underground data. SPN equipment is connected to the above ground part through optical cables to form a ring network structure, which improves the flexibility and stability of the network.

[0127] The management platform on the surface is responsible for monitoring and dispatching the entire network. It is connected to the underground ring network through optical cables, collects the status information of underground equipment, and issues control instructions to ensure the normal operation of underground communication equipment and accurate data transmission.

[0128] In summary, the above-ground part and the underground part establish direct communication links through optical cables, wireless communications, repeaters and other facilities to form a unified 5G transmission ring network system. This communication system design can overcome the communication barriers in the coal mine environment, ensure that the control center on the ground can obtain underground data in real time and accurately, and effectively monitor and manage underground equipment, which is of great significance to improving the safety production and intelligent level of coal mines.

[0129] Specifically, all 5G base stations are opened in SA mode, and the upper transmission network is constructed with no less than 50G dual physical loops to ensure that all sites in the private network are included in the loop. Each loop is connected to two transmission aggregation nodes uplink respectively, and the optical cable construction reasonably selects the route to avoid physical same routing and same cable forming a loop.

[0130] Specifically, the transmission equipment adopts the optical cable multi-route solution for protection, and each end of the aggregation layer equipment has no less than 2 different optical cable routes. The transmission equipment is designed with a 4-hour backup power supply. When the city power is disconnected, the communication equipment will immediately switch to battery power supply. The battery can continuously ensure the normal operation of the equipment for 4 hours to meet the subsequent power supply needs.

[0131] Specifically, the transmission equipment in the transmission network combination supports 1+1 protection for the main control board, 1+1 protection for the switch, and 1+1 protection for the power board. The core aggregation ring realizes a ring network with a bandwidth of no less than 50GE. The aggregation layer equipment supports 24 slots, and the high-density single board supports 4*200GE ports. The typical power consumption of the equipment is less than 3000W (full configuration). 1588V2 clock transmission is carried out between transmission equipment. The underground transmission network SPN equipment tracks the 1588V2 clock signal and transmits the signal to the underground 5G base station (BBU) to achieve clock synchronization.

[0132] Specifically, in the data room, the UWB base station and the 4G / 5G converged base station transmit the base station signal to the SPN transmission ring network through the existing network transmission optical cable, and send the data to the MEC core network (UPF+MEP) through the SPN ring network. The MEC core network directly deploys the base station positioning application, and directly deploys the application in the sinking 5G core network, reducing computing delay and increasing the reliability and accuracy of positioning.

[0133] Specifically, multiple repeaters are connected in sequence through the wireless transmission method of 5G communication to form a transmission link. The first repeater in the transmission ring network is connected to the transmission network by wired or wireless means, and the last repeater in the transmission loop is connected to the terminal device by wireless means.

[0134] In addition, the core network combination includes adding a communication emergency guarantee board to the core network equipment that has been deployed in the existing network to form a UPF+ networking solution, which ensures that steady-state users do not lose connection and operate by inertia. After the main network is disconnected, users can reconnect and ensure the smooth operation of the underground 5G private network.

[0135] The private network base station is dually connected to the operator's To C core network and To B core network to realize the access edge enhanced UPF for individual users and Internet users in the mining area. By adding a new board in the UPF cabinet in the mining area, UPF+ is realized, including emergency AMF, emergency UDM and emergency SMF functions, without the need to add new network element nodes separately.

[0136] The solution of this application takes emergency handling into consideration. By adding an emergency support board to the core network equipment, it can ensure that steady-state users do not lose connection and maintain service even after the large network is disconnected. At the same time, the power consumption of the equipment is controlled within a reasonable range, which reduces energy consumption, is conducive to continuous operation and reduces environmental impact.

[0137] When in use, by adding SPN equipment, a ring network is formed with the existing transmission equipment to ensure the stable operation of the transmission network while achieving the upgrade of the transmission network bandwidth, providing a basis for the research on transmission slicing. The newly added equipment supports the 5G network slicing function, meets the continuous coverage and multi-scenario business requirements of the 5G network, and has end-to-end independent networking capabilities. The transmission equipment supports 1+1 protection for the main control board, 1+1 protection for the switch, and 1+1 protection for the power board. It is connected to the transmission network through a repeater, and / or is connected to other repeaters wirelessly to build a transmission link. The transmission link transmits the communication data sent by the terminal device based on preset rules. The communication data can be transmitted between repeaters without routing, without repeated debugging, to achieve low-latency communication, effectively improve communication efficiency and effect, improve the efficiency of the transmission network, and increase the stability of the transmission network.

[0138] The method embodiments provided in the embodiments of the present application can be executed in a mobile terminal, a computer terminal or a similar computing device. Taking running on a mobile terminal as an example, Figure 4 FIG. 1 is a hardware structure block diagram of a mobile terminal of a control method of a coal mine communication system according to an embodiment of the present invention. Figure 4 As shown, the mobile terminal may include one or more ( Figure 4 Only one is shown in the figure) a processor 102 (the processor 102 may include but is not limited to a processing device such as a microprocessor MCU or a programmable logic device FPGA) and a memory 104 for storing data, wherein the mobile terminal may also include a transmission device 106 and an input / output device 108 for communication functions. It can be understood by those skilled in the art that Figure 4 The structure shown is only for illustration and does not limit the structure of the mobile terminal. Figure 4 More or fewer components as shown, or with Figure 4 Different configurations are shown.

[0139] The memory 104 can be used to store computer programs, for example, software programs and modules of application software, such as the computer program corresponding to the display method of device information in the embodiment of the present invention. The processor 102 executes various functional applications and data processing by running the computer program stored in the memory 104, that is, the above method is implemented. The memory 104 may include a high-speed random access memory, and may also include a non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some examples, the memory 104 may further include a memory remotely arranged relative to the processor 102, and these remote memories can be connected to the mobile terminal via a network. Examples of the above-mentioned network include but are not limited to the Internet, an intranet, a local area network, a mobile communication network, and a combination thereof. The transmission device 106 is used to receive or send data via a network. The above-mentioned specific examples of the network may include a wireless network provided by a communication provider of the mobile terminal. In one example, the transmission device 106 includes a network adapter (Network Interface Controller, referred to as NIC), which can be connected to other network devices through a base station so as to communicate with the Internet. In one example, the transmission device 106 may be a radio frequency (RF) module, which is used to communicate with the Internet wirelessly.

[0140] In this embodiment, a control method for a coal mine communication system running on a mobile terminal, a computer terminal or a similar computing device is provided. It should be noted that the steps shown in the flowchart of the accompanying drawings can be executed in a computer system such as a set of computer executable instructions, and although a logical order is shown in the flowchart, in some cases, the steps shown or described can be executed in an order different from that shown here.

[0141] Figure 5 FIG. 1 is a flow chart of a control method of a coal mine communication system according to an embodiment of the present application. Figure 5 As shown, the method comprises the following steps:

[0142] Step S201, acquiring communication information, wherein the communication information is information on the link status of the first link currently used for communication between the downhole subsystem and the uphole subsystem;

[0143] Specifically, the link status information of the first link currently used between the downhole subsystem and the surface subsystem is collected and analyzed periodically or when triggered by a specific event. Link status information usually includes the transmission rate, bit error rate, delay, packet loss rate, and current activation status of the link. The system needs to obtain this information to grasp the health status of the first link in real time, which is the basis for fault detection and management. For example, by monitoring the bit error rate and packet loss rate, it can be determined whether there is interference or data transmission quality problems in the link; by monitoring the delay, the real-time performance of data transmission can be understood to ensure the low-latency characteristics of communication.

[0144] Step S202, determining whether the first link has communication abnormality according to the communication information;

[0145] Specifically, based on the communication information obtained in step S201, certain judgment criteria and algorithms are applied to evaluate the communication status of the first link to determine whether there is a communication anomaly. Communication anomalies may include but are not limited to signal loss, bit error rate outside the normal range, high delay, or large-scale data packet loss.

[0146] This judgment process is the key to the system's self-healing and maintaining communication quality. Once a link anomaly is detected, the system can immediately identify the problem and proceed to the next step to take emergency measures to avoid the impact of communication interruptions on coal mine operations.

[0147] Step S203, when the first link communication is abnormal, control the downhole subsystem and the surface subsystem to communicate using the second link.

[0148] Specifically, if it is determined that there is indeed a communication anomaly in the first link, the system will automatically execute step S203, that is, switch to the second link for communication. The second link is usually designed as a backup for the first link to provide redundancy, ensuring that even if one link fails, the system can still maintain communication through another link.

[0149] Link switching is usually completed automatically by the network management platform or the intelligent algorithm integrated in the SPN device, without manual intervention. This process may include reconfiguring network parameters, adjusting data routing, activating the physical connection of the second link, etc., to ensure that data can be quickly and losslessly switched to the new link and continue to be transmitted.

[0150] Through this embodiment, during the operation of the coal mine communication system, it can be determined whether the link has communication abnormalities, and in the case of link communication abnormalities, the link can be replaced in time for communication, thereby improving the stability of the coal mine communication system of this solution.

[0151] Specifically, in the solution of the present application, the management platform of the well part is responsible for monitoring the operating status of the entire network, including key indicators such as signal strength, data transmission rate, and device status. The network monitoring system may use software-defined network (SDN) technology to monitor the network status in real time through a centralized control plane. The SPN devices and repeater devices in the system periodically send link status information, including signal quality, link connectivity and other data. Through this information, the management platform can determine the working status of each link in real time. The management platform may integrate advanced fault detection algorithms, such as graph-based path analysis, link quality threshold detection, etc. These algorithms can quickly identify fault points in communication links and provide a basis for dual-link switching.

[0152] Specifically, the dual-link design provides redundant protection for the same transmission task through two physically independent links (such as optical cable paths). Under normal circumstances, data is mainly transmitted through one main link, and the other link remains in a standby state.

[0153] When the management platform detects a failure in a primary link (such as signal interruption, data transmission abnormality, etc.), it will immediately start the automatic switching mechanism and switch the data transmission task to the backup link. This process is usually automatic and fast to reduce communication interruption time.

[0154] In some cases, the system may use link aggregation technology (such as LACP, Link Aggregation Control Protocol) to bind multiple links together to form a logical single high-bandwidth link. When a physical link fails, data transmission is automatically transferred to other links to maintain high availability.

[0155] After the link switching is completed, the management platform will record the fault information and may initiate the fault recovery process, such as notifying maintenance personnel to repair the faulty link, adjusting the network configuration to optimize data transmission, etc. At the same time, it will continue to monitor the network status to ensure the continuity and quality of data transmission.

[0156] The transmission equipment in the system uses the 1588V2 protocol for time synchronization, which is very important in wireless communications, especially for 5G networks, which require high-precision time synchronization to ensure service quality and low-latency communications. Transmission equipment (such as SPN equipment) supports 1+1 protection for the main control board, 1+1 protection for the switch, and 1+1 protection for the power board, which means that when the main equipment fails, the backup equipment can immediately take over the task to ensure uninterrupted transmission.

[0157] In specific implementation, for example, when an optical cable link underground is interrupted due to geological changes or equipment failure, the management platform detects this abnormality through the link status report. The management platform immediately activates the backup optical cable link and switches data transmission from the failed link to the backup link. At the same time, the system may further improve the flexibility and fault tolerance of the network through the wireless connection capability of the repeater, ensuring that the communication between the wellbore and underground can remain stable even under harsh conditions.

[0158] In general, the 5G transmission ring network system based on blockchain technology can effectively detect communication anomalies through real-time network monitoring, fault detection mechanism and automatic dual-link switching function, and achieve rapid communication recovery through link redundancy design, ensuring the continuity and safety of coal mine operations.

[0159] Specifically, in order to enhance site transmission protection and transmission route dual-link redundancy, a C-RAN method is adopted for construction: including an aggregation layer and an access layer; wherein the aggregation layer is used to construct an aggregation layer node communication loop between C-RAN equipment room equipment, as well as a communication link between C-RAN equipment room equipment and core equipment room equipment, and to construct a primary and backup communication link between core equipment room equipment; wherein the C-RAN equipment room equipment includes multiple SPN devices; and is used to form a dual-route protection optical cable network linked between a first number of C-RAN equipment room equipment and an optical cable network of a second number of 5GC core equipment room equipment, to form a dual-route access network between the C-RAN equipment room equipment.

[0160] The access layer is used to select the equipment access method (such as D-RAN) according to the conditions of the mining area, so that base stations at different sites can access the above-mentioned C-RAN computer room equipment, so that the SPN equipment and the aggregation layer node equipment form a communication loop, so that the entire mining area transmission equipment can realize signal transmission; based on the C-RAN access method and C-RAN computer room equipment, each site is dual-routed to the corresponding C-RAN computer room equipment according to the preset access distance; and the dual-route protection optical cables are respectively connected to the adjacent C-RAN nodes through the above-mentioned D-RAN access method.

[0161] D-RAN access mode refers to distributed wireless access network. In the D-RAN architecture, BBU (baseband processing unit) and RRU (radio remote unit) are no longer placed in a cabinet or room. Instead, RRU is deployed close to the antenna, while BBU can be deployed separately in the cabinet. This distributed deployment method makes network planning more flexible, and the location of RRU and antenna can be adjusted according to actual needs to optimize signal coverage and quality.

[0162] Specifically, the C-RAN architecture usually consists of two parts: the aggregation layer and the access layer:

[0163] Aggregation layer: The main function of this layer is to build communication loops and links between equipment in the computer room to achieve signal aggregation and transmission between devices. Specifically, it is responsible for building the aggregation layer node communication loop between C-RAN equipment in the computer room (i.e. connecting multiple C-RAN equipment in the computer room through a ring network), as well as the communication link between C-RAN equipment in the computer room and the core equipment in the computer room. At the same time, it also builds the main and backup communication links between the core equipment in the computer room to ensure that when the main link fails, the backup link can be put into use immediately to maintain the continuity of network operation. C-RAN equipment in the computer room usually includes multiple SPN (Slicing Packet Network) devices, and the connection between these devices needs to adopt a dual-route protection optical cable network to reduce the impact of a single point of failure.

[0164] Access layer: This layer mainly handles the signal transmission between the base station and the C-RAN room equipment. 5G base stations at different sites (through D-RAN or C-RAN access methods) access the C-RAN room equipment to upload and download data. Here, it is emphasized that the equipment access method should be selected according to the conditions of different mining areas to ensure the stability of communication between the SPN equipment and the aggregation layer node equipment. The connection between each site and the C-RAN room equipment also adopts dual routing, and data is transmitted through different physical paths to increase the reliability of transmission. Under the D-RAN access mode, the dual-route protection optical cables will be connected to the adjacent C-RAN nodes respectively to form multi-path protection.

[0165] In the C-RAN architecture, transmission protection is achieved by implementing dual-link redundancy and dual-route protection. Dual-link redundancy means that each communication link has a backup link. When the main link fails, the data can be automatically switched to the backup link to ensure the continuity of transmission. The dual-route protection optical cable network provides multiple paths for data transmission at the physical level. Even if a path fails, data can still be transmitted through other paths, enhancing the robustness and stability of the system.

[0166] In order to further improve the stability and efficiency of the network, the solution proposes the concept of preset access distance. This means that the distance between each 5G base station and the C-RAN equipment room is planned to ensure the quality and efficiency of signal transmission. Each site will be connected to the corresponding C-RAN equipment room through dual routing, which means that the data will have two different transmission paths, so that even if one of the paths has problems, the signal transmission can still be completed through the other path, avoiding the risk of signal interruption.

[0167] The main difference between D-RAN (Distributed RAN) and C-RAN is the deployment location of the BBU. In D-RAN, the BBU and RRU are usually located in the same location, while in C-RAN, the BBU is centrally deployed and the RRU is distributed at various sites. The use of C-RAN can reduce the energy consumption of the BBU and simplify network maintenance, but an efficient transmission network is required to support data transmission between the BBU and the remote RRU. In this solution, the use of C-RAN significantly enhances the signal transmission capability of the transmission equipment in the entire mining area, especially in improving the coverage, stability and security of the transmission network.

[0168] In the D-RAN (Distributed Radio Access Network) architecture, the baseband unit (BBU) and radio frequency unit (RRU) of each base station are usually deployed in the same physical location, that is, each 5G base station is a complete unit, including the local BBU and RRU. Due to the short distance between the BBU and RRU, the delay of signal transmission is low, which helps to improve the response speed of the network and the efficiency of data transmission. At the same time, since each base station processes data independently, it can theoretically reduce network congestion and increase data transmission rate. Under the D-RAN architecture, each base station requires a complete BBU device, which leads to high equipment cost and energy consumption, because the BBU device usually contains high-power processors and storage units. In addition, higher energy consumption also means that more power supply and heat dissipation facilities are required. Each D-RAN base station is independent, which means that when maintenance or upgrades are required, each base station must be visited one by one, which increases the complexity and cost of maintenance. However, due to the independence of the equipment, the failure of a single base station will not affect the operation of the entire network, improving the local robustness of the network.

[0169] In the C-RAN (centralized radio access network) architecture, BBUs are centrally deployed in data centers or computer rooms, while RRUs are distributed across sites. The connection between BBU and RRU is achieved through optical fiber. This architecture allows multiple RRUs to share one BBU, reducing the overall number of BBUs. Centralized BBU management can implement more complex signal processing and resource scheduling algorithms, which helps improve spectrum efficiency and network performance. However, the optical fiber transmission distance between BBU and RRU is long, which may introduce additional signal delays, especially for applications with high real-time requirements. C-RAN reduces equipment costs and energy consumption by reducing the number of BBUs. Centralized BBUs can share computing resources, further reducing energy consumption. At the same time, the energy consumption of optical fiber communication is usually lower than that of wireless communication, so more electricity can be saved overall. The maintenance of C-RAN is mainly concentrated in the computer room where the BBU is located, which simplifies the maintenance and upgrade process and reduces costs. However, the failure or interruption of the optical fiber link may affect multiple base stations, reducing the local robustness of the network.

[0170] In the specific implementation process, the above-mentioned communication information includes one or more of a bit error rate, a signal-to-noise ratio, a signal strength, a throughput and a delay time. According to the above-mentioned communication information, determining whether the above-mentioned first link has communication abnormalities can be achieved through the following steps: when the above-mentioned communication information meets the preset conditions, determining that the above-mentioned first link has communication abnormalities, wherein the above-mentioned preset conditions include one or more of a first preset condition, a second preset condition, a third preset condition, a fourth preset condition and a fifth preset condition, the above-mentioned first preset condition is that the above-mentioned bit error rate is greater than a preset bit error rate threshold, the above-mentioned second preset condition is that the above-mentioned signal-to-noise ratio is less than a preset signal-to-noise ratio threshold, the above-mentioned third preset condition is that the above-mentioned signal strength is less than a preset signal strength threshold, the above-mentioned fourth preset condition is that the above-mentioned throughput is less than a preset throughput threshold, and the above-mentioned fifth preset condition is that the above-mentioned delay time is greater than a preset time threshold; when the above-mentioned communication information does not meet the above-mentioned preset conditions, determining that the communication of the above-mentioned first link is normal.

[0171] In this solution, by setting these preset conditions, the system can detect the degradation of link performance in time, thereby avoiding the deterioration of communication quality and maintaining the accuracy and timeliness of data transmission. This mechanism can preventively detect the link status and respond in advance when the link begins to show signs of instability to prevent major failures. The system reduces the need for manual intervention and improves the efficiency and intelligence level of link management by automatically detecting and evaluating the link status. For links that do not meet the preset conditions, the system can automatically switch to the backup link, avoiding resource waste while ensuring the normal operation of key services. By switching to the normal link in time, the system can maintain high availability and maintain the continuity and stability of the communication network even under harsh conditions.

[0172] Specifically, the bit error rate (BER) refers to the ratio of the number of erroneous bits to the total number of transmitted bits during data transmission. If the bit error rate suddenly increases, it may indicate that the link is interfered with or the device performance is degraded, and further investigation is required. The preset bit error rate threshold refers to the maximum bit error rate value that the system can tolerate under normal communication. When the actual measured bit error rate exceeds this threshold, the system believes that the link has a problem with degraded data transmission quality, which may be interfered with or there is a problem with the link itself.

[0173] The signal-to-noise ratio (SNR) is the ratio of the average power of the signal to the average power of the noise, and is a measure of signal clarity. A low SNR may mean poor signal quality, which may be caused by electromagnetic interference, equipment failure, or signal attenuation. The preset SNR threshold is the minimum SNR required for the system to operate normally. If the SNR is lower than this threshold, it means that the signal is subject to greater noise interference, affecting the transmission quality of the signal.

[0174] The received signal strength indication (RSSI) is an indicator of the strength of the received signal, which is used to reflect the strength of the signal at both ends of the link. If the RSSI value continues to decrease, it may indicate that the signal coverage is reduced or the signal path is blocked, and you need to check the physical connection of the optical cable or the configuration of the repeater. The signal strength threshold is the minimum signal strength requirement set to ensure that the communication link can transmit data stably. If the signal strength is lower than the preset value, it may mean that the link coverage is insufficient or there are physical obstacles that cause signal attenuation.

[0175] Throughput refers to the amount of data that a link can transmit per unit time and is an important indicator for measuring data transmission efficiency. If throughput suddenly decreases, it may mean that the link bandwidth is insufficient, or there are problems such as packet loss and network congestion. The preset throughput threshold is the minimum data transmission rate set by the system based on business requirements. If the actual throughput is lower than this threshold, it may mean that the link bandwidth is insufficient or there is data congestion, which affects data transmission efficiency.

[0176] Latency refers to the transmission time of a data packet in the network. For real-time applications (such as remote control and video transmission), high latency is unacceptable. If the latency increases, it may indicate a problem with the network path or a decrease in the processing power of the network device. The preset time threshold is the system's maximum tolerance for data transmission time. If the latency time exceeds the preset threshold, it means that the real-time performance of the link is poor, which may affect the normal operation of real-time monitoring and control functions.

[0177] Network monitoring systems usually continuously monitor the above parameters and set reasonable thresholds. Once the signal quality drops below a certain threshold, the signal strength weakens to a level that is insufficient to maintain effective communication, or the data transmission rate decreases to a level that affects normal business, the system will determine that the communication link is abnormal and trigger the fault detection and recovery process. For example, the system may confirm the link status by sending a test data packet, or directly switch to a backup link for data transmission, while recording the abnormal situation and notifying maintenance personnel to check and repair it.

[0178] In the 5G transmission ring network system based on blockchain technology, these monitoring mechanisms are even more important because they help maintain high network reliability and low latency, which is crucial for real-time data transmission and blockchain consensus mechanism. By continuously monitoring signal quality and data transmission performance, the system can promptly detect and respond to potential failures, ensuring the continued stable operation of the communication network in harsh environments such as coal mines.

[0179] Assume that in the coal mine communication system, the underground subsystem and the surface subsystem are communicating using the first link, which uses optical fiber transmission technology and supports high-speed data transmission and low latency. The preset conditions set in the system include:

[0180] The first preset condition: the bit error rate (BER) is greater than a preset bit error rate threshold of 0.001.

[0181] The second preset condition: the signal-to-noise ratio (SNR) is less than a preset signal-to-noise ratio threshold of 20 dB.

[0182] The third preset condition: the signal strength is less than the preset signal strength threshold of -70dBm.

[0183] Fourth preset condition: the throughput is less than a preset throughput threshold of 100 Mbps.

[0184] Fifth preset condition: the delay time is greater than the preset time threshold of 10ms.

[0185] The system uses the built-in network monitoring module to monitor the communication information of the first link in real time, including bit error rate, signal-to-noise ratio, signal strength, throughput and delay time.

[0186] At a certain moment, the system detects that the bit error rate on the first link is 0.0011, which exceeds the preset bit error rate threshold of 0.001. This indicates that the data quality of the link transmission begins to decline and there is a potential communication failure.

[0187] Next, the system checks whether the signal-to-noise ratio is less than the preset 20dB. Assuming that the signal-to-noise ratio is 19.5dB, which is lower than the preset threshold, this means that the link is subject to high noise interference, which may affect the clarity of data transmission.

[0188] Subsequently, the system detected a signal strength of -72dBm, which was less than the preset signal strength threshold of -70dBm, indicating that the signal coverage might be insufficient or there were physical obstacles in the link causing signal attenuation.

[0189] The system continuously monitors the throughput. Assume that at a certain point in time, the throughput drops to 95 Mbps, which is lower than the preset threshold of 100 Mbps. This indicates that the link may not be able to meet the current business needs.

[0190] Finally, the system detected that the delay time occasionally exceeded the preset time threshold of 10ms, such as reaching 12ms, which may mean that the real-time performance of the link is not sufficient to support certain high-delay-sensitive applications such as remote control and video surveillance.

[0191] If any one or more of the preset conditions are met in the above monitoring, the system will determine that the first link is in an abnormal communication state. For example, if the bit error rate is greater than 0.001 and the signal-to-noise ratio is less than 20dB, the system will take immediate action and believe that the first link cannot provide stable, high-quality communication services and is faulty.

[0192] On the contrary, if all communication information monitored by the system does not meet the above preset conditions, that is, the bit error rate does not exceed 0.001, the signal-to-noise ratio is greater than or equal to 20dB, the signal strength is not less than -70dBm, the throughput is higher than 100Mbps, and the delay time is less than or equal to 10ms, the system determines that the first link communication is normal and can meet the current business needs and communication quality standards.

[0193] In some embodiments, before obtaining the communication information, the method further includes the following steps: obtaining configuration information, wherein the configuration information includes network topology information and / or business demand information, the network topology information is information on the physical layout and connection method of the transmission network, and the business demand information is information on the communication service requirements of the coal mine 5G network for specific businesses; constructing a configuration generation model, wherein the configuration generation model is trained using multiple sets of training data, each set of the multiple sets of training data includes historical configuration information obtained within a historical time period, and historical configuration schemes corresponding to the historical configuration information, wherein the historical configuration schemes are schemes for historical devices, historical locations of historical devices, and historical links used by historical devices that meet the needs of specific business communications; inputting the configuration information into the configuration generation model to obtain a configuration scheme corresponding to the configuration information.

[0194] In this solution, through intelligent generation of models, the system can automatically adjust the network configuration according to the real-time network topology and business needs to meet the current communication service needs in the most optimized way. Compared with traditional manual configuration, this method greatly improves the efficiency and accuracy of configuration. Models based on historical data and machine learning can reduce failures and misconfigurations caused by manual operations, make the network configuration process more robust, and reduce the network failure rate. By optimizing the configuration, it can ensure that the network is in the best state in key indicators such as latency, bandwidth, and throughput, thereby improving the user's communication experience in the coal mine 5G network, while improving the performance and reliability of the service.

[0195] Specifically, the acquisition of configuration information is the basis of the entire process, which includes two parts: network topology information and business demand information. Network topology information: This refers to the physical layout and connection method of the transmission network, including the distribution of equipment in the network, connection method (such as ring, star, etc.), link type (optical fiber, wireless, etc.) and link capacity. Business demand information: This part of information reflects the communication service requirements of the coal mine 5G network for specific services, such as high-definition video surveillance, real-time data transmission, remote control operation, etc. These services may have different requirements for latency, bandwidth, throughput, and network stability.

[0196] The construction of the configuration generation model is based on machine learning. Specifically, it is trained using multiple sets of training data. These training data are the actual configuration information obtained in the historical time period and the corresponding successful configuration solutions, including the type and location of historical devices, the historical links used, and how these configurations meet the communication needs of specific services.

[0197] Through training, the model can learn the relationship between network topology, business requirements and configuration solutions, so that it can predict the optimal configuration solution when given new network topology information and business requirement information.

[0198] Once the model is trained, it can be used to generate actual network configurations. The specific operation is to input the current network topology information and business demand information of the coal mine 5G network into the configuration generation model. The model will automatically calculate and output a configuration plan based on the learned associations. This configuration plan includes the optimal use of devices in the network, the location arrangement of devices, and the optimal selection of links, ensuring that the network configuration can efficiently and stably support various communication services of the coal mine.

[0199] Specifically, according to the actual network topology and business requirements, the adjacency matrix and node form are used as input; then, according to the transmission network service configuration requirements, the corresponding mathematical model is established; finally, based on the characteristics of the mathematical model of the transmission network service configuration, the above mathematical model is searched for the optimal solution in combination with the graph theory algorithm, and finally the optimal solution for the transmission network service configuration is obtained. This technology processes the transmission network service configuration problem in the form of mathematical optimization, simplifies the complex service configuration, greatly reduces the complexity of the configuration processing, and improves the accuracy. It can efficiently and quickly find the optimal solution every time to achieve the optimal configuration of the transmission service;

[0200] Specifically, network topology and business requirements input network topology, which refers to the physical layout and connection method of the transmission network, including which devices (nodes) are connected to each other, and the connection paths (links) between them. In the 5G transmission system underground in a coal mine, the network topology may include ring network SPN equipment, 5G BBU equipment, underground central substation transmission equipment, repeaters and above-ground data room equipment, etc., as well as optical cables or wireless connections between these devices. Business requirements: refers to the specific service requirements that the 5G network underground in a coal mine needs to support, such as data transmission rate, latency, quality of service (QoS), etc. In a coal mine environment, business requirements may include high-definition video surveillance, real-time data transmission, remote control operations, etc. These services have high requirements on the bandwidth, latency and stability of the network.

[0201] Next, a mathematical model is established based on the network topology and business requirements. This model usually includes objective functions and constraints to describe the goals of network configuration (such as minimizing costs while maximizing network performance) and the rules that must be followed (such as ensuring signal coverage, network redundancy, and fault recovery capabilities). The construction of the mathematical model is based on a deep understanding of network characteristics, including physical characteristics such as node capacity, link bandwidth, and signal attenuation.

[0202] In this model, the network topology can be represented by an adjacency matrix. The adjacency matrix is ​​a two-dimensional array that describes the connection relationship between nodes in the network. The elements in the matrix represent the connection status between nodes. For example, if two nodes are directly connected, the corresponding position in the matrix is ​​1, otherwise it is 0. The adjacency matrix can clearly show the structure and connection mode of the network, providing a basis for subsequent model optimization.

[0203] After having a mathematical model, the next step is to use an optimization algorithm to search for the optimal solution of the model. In this process, graph theory algorithms (such as the shortest path algorithm, maximum flow algorithm, minimum spanning tree algorithm, etc.) are usually used to analyze and optimize the network structure. Graph theory algorithms can process the relationship between nodes and links in the network and find the optimal path or configuration solution that meets specific conditions.

[0204] Combined with the mathematical model of transmission network service configuration, the goal of the optimization algorithm is to find a configuration solution that can both meet service requirements (such as bandwidth, delay) and optimize network resource utilization (such as cost, energy consumption). This may involve the selection of network nodes, bandwidth allocation of links, and the adjustment of repeater deployment parameters. The algorithm will try to find a solution that optimizes the objective function under the constraints of the model, that is, the optimal network configuration solution.

[0205] Through the above process, the optimal solution for transmission network service configuration can be obtained, which will guide the actual equipment deployment, link connection and service configuration of the 5G transmission ring network system. For example, it may determine which equipment needs to be deployed in the underground central substation, how the optical cable should be laid to form dual-route protection, or how the 5G base station can be optimally connected with the SPN equipment.

[0206] The entire optimization process converts actual problems into mathematical models and then uses algorithms to solve them, which not only ensures the scientificity and accuracy of the solution, but also greatly simplifies the configuration process, reduces reliance on manual experience, and improves configuration efficiency. For 5G transmission systems in coal mine environments, this optimization solution can effectively improve network stability and transmission efficiency, and ensure the communication services required for safe and efficient operation of coal mines.

[0207] Specifically, according to the actual network topology structure and business requirements of the transmission network, the adjacency matrix and node forms are used as input respectively; wherein the above-mentioned network topology structure includes nodes and pipes connecting the nodes, and the above-mentioned business requirements are the services that need to be transmitted between nodes; based on the input of the network topology structure and business requirements of the above-mentioned transmission network, according to the planning and design requirements of the transmission network business configuration, a corresponding mathematical model is established for the transmission network business configuration problem; wherein the above-mentioned mathematical model includes the objective function of the optimal transmission network business configuration and the constraint conditions corresponding to the planning and design requirements of the transmission network business configuration; based on the mathematical model of the above-mentioned transmission network planning and design business configuration problem, the above-mentioned mathematical model is solved in combination with the graph theory algorithm to obtain the optimal business configuration plan as the output; according to the output of the optimal business configuration plan, the optimal plan for the configuration of the above-mentioned transmission network is planned and designed.

[0208] The location information of the wireless device BBU and the first SPN device in the base station room is obtained; based on the above location information, the 50GE loop composed of the second SPN device and the convergence layer node device is obtained to form a ring network with the built transmission equipment, which ensures the stable operation of the transmission network and realizes the bandwidth upgrade of the transmission network, providing a basis for the research on transmission slicing. The new equipment supports the 5G network slicing function, meets the continuous coverage and multi-scenario business requirements of the 5G network, and has end-to-end independent networking capabilities. The transmission equipment supports 1+1 protection of the main control board, 1+1 protection of the switch and 1+1 protection of the power board, and is connected to the transmission network through a repeater, and / or is connected to other repeaters by wireless means to build a transmission link. The transmission link transmits the communication data sent by the terminal device based on preset rules. The communication data can be transmitted between repeaters without routing, without repeated debugging, to achieve low-latency communication, effectively improve communication efficiency and effect, improve the efficiency of the transmission network, and increase the stability of the transmission network.

[0209] In the specific implementation process, before obtaining the communication information, the above method also includes the following steps: obtaining multiple time slots; numbering all of the above time slots in the order of the above time slots to obtain the time slot numbers corresponding to all of the above time slots; and transmitting data in all of the above time slots in sequence in the order of the above time slot numbers.

[0210] In this solution, by evenly distributing data to multiple time slots for transmission, congestion caused by concentrated data transmission in certain time slots can be avoided, thereby improving the efficiency of data transmission and the throughput of the system. The strategy of transmitting data in each time slot can better utilize network resources, avoid waste of resources, and ensure that each user or device can obtain sufficient transmission bandwidth when needed. Orderly time slot management and data transmission can reduce data waiting time, thereby reducing transmission delay, which is especially important for applications with high real-time requirements (such as video surveillance, remote control, etc.). Time slot numbering facilitates fault monitoring and processing. By monitoring the data transmission of each time slot, the problem time slot can be quickly located, and targeted fault detection and repair can be carried out.

[0211] Specifically, in a time division multiplexing system, data transmission is divided into multiple fixed time intervals on the time axis, which are called "time slots". The system first determines the number of available time slots, which is usually determined based on factors such as system frequency resources, bandwidth, user needs and network configuration.

[0212] Next, the system will number these time slots. The order of numbering is usually based on the order in which the time slots appear, starting from the first time slot to the last time slot. The purpose of numbering is to facilitate the management and scheduling of time slots and ensure the orderly transmission of data. For example, if the system has 10 time slots, the first time slot is numbered 1, the second time slot is numbered 2, and so on, until the last time slot is numbered 10.

[0213] After the numbering is completed, the system will transmit data in each time slot in sequence according to the order of the time slot numbers. This means that if the system wants to transmit a set of data, it will divide the data into multiple packets that match the number of time slots, and then send a packet in each time slot in sequence according to the order of the time slot numbers. For example, if the system wants to transmit 10 packets, it will send the first packet in the first time slot numbered 1, and the second packet in the second time slot numbered 2, until all packets are transmitted.

[0214] Specifically, in the time division duplex (TDD) mode of the 5G network, time domain resources are finely divided into multiple time slots, each of which has its own specific time window. The time slot number provides a clear identification for these time slots, allowing the network to effectively allocate and manage time domain resources. For example, the system can allocate specific time slots to critical tasks based on business priority, data type, or real-time network conditions to ensure that data is transmitted at the right time.

[0215] The time slot number is the basis for time slot scheduling. The system coordinates the communication between different devices through the time slot number to ensure the accuracy and synchronization of uplink and downlink data transmission. In the complex environment underground, data transmission may be interfered by many factors. Through time slot scheduling, data can be arranged to be transmitted in the time period with the least interference, improving transmission efficiency and reducing data packet loss.

[0216] Timeslot numbering helps the system optimize the overall performance of the network. For example, by analyzing historical data, the system can predict which timeslots have the best network conditions, so that these timeslots are used first for the transmission of critical data. In addition, timeslot numbering also supports dynamic adjustment of timeslot allocation to adapt to changing network loads and user needs, ensuring efficient use of network resources.

[0217] When a network anomaly is detected, such as a drop in signal quality or an increase in data transmission delay, the system can trace back the data transmission process based on the time slot number and quickly locate the time point and possible cause of the failure. This is crucial for fault recovery because it allows the system to quickly adjust the transmission strategy, such as switching to a backup link or reallocating time slot resources, to reduce the impact of communication interruptions.

[0218] An important feature of 5G networks is that they support low-latency communications, which is particularly critical for real-time control and monitoring applications. Time slot numbering ensures that data can be transmitted accurately within a predefined time, avoiding unnecessary waiting and processing time, thereby achieving low-latency data transmission.

[0219] Time slot numbering and scheduling can reduce conflicts and redundancies in the data transmission process and improve the efficiency of data transmission. At the same time, it also provides a time reference point for data encryption and authentication, ensuring the security of data during transmission. Especially when blockchain technology is applied to network management, time slot numbering is an important basis for timestamping and data verification.

[0220] In short, time slot numbering is the core mechanism of time resource management in 5G networks. It enables the system to accurately control and optimize the data transmission process. Especially in 5G transmission ring network systems in complex environments such as underground, the use of time slot numbering can significantly improve the performance, reliability and security of the network. It is one of the key technologies to achieve efficient and stable communication.

[0221] The networking method of the above solution of this application is as follows Figure 6 The following steps are shown for reference only:

[0222] Step S1: constructing a convergence layer node communication loop between C-RAN equipment room equipment, a communication link between C-RAN equipment room equipment and core equipment room equipment, and constructing a primary and standby communication link between core equipment room equipment; wherein the C-RAN equipment room equipment includes multiple SPN equipment;

[0223] Step S2: Obtain a first number of C-RAN equipment room devices and a second number of 5GC core equipment room devices, build a 100GE loop between the first number of C-RAN equipment room devices, build a 100GE link between the 100GE loop and the second number of 5GC core equipment room devices, and build a primary and backup 100GE link between the second number of 5GC core equipment room devices through two different physical routing jumpers;

[0224] Step S3: The AAU of each site of the base station is connected to different ports of the BBU of the corresponding C-RAN equipment room through dual routing, and in the C-RAN access mode, the BBU equipment is connected to the SPN board through link aggregation;

[0225] Step S4: Obtain location information of the wireless device BBU and the first SPN device in the base station room; based on the location information, obtain a 50GE loop formed by the second SPN device and the aggregation layer node device, and simultaneously obtain a communication link formed by the base station side microwave device and the nearest C-RAN device under mining conditions;

[0226] Step S5: A dual-route protection optical cable network forming a link between the first number of C-RAN equipment room devices and an optical cable network of the second number of 5GC core equipment room devices are used to form a dual-route access network between the C-RAN equipment room devices; based on the C-RAN access mode and the C-RAN equipment room devices, each site is dual-routed to the corresponding C-RAN equipment room device according to a preset access distance; and the dual-route protection optical cables are respectively connected to adjacent C-RAN nodes through the D-RAN access mode;

[0227] Step S6: Select the equipment access mode according to the conditions of the mining area, so that base stations at different sites are connected to the C-RAN equipment room, so that the SPN equipment and the convergence layer node equipment form a communication loop, so that the transmission equipment in the entire mining area can realize signal transmission.

[0228] The embodiment of the present application also provides a control device for a coal mine communication system. It should be noted that the control device for a coal mine communication system in the embodiment of the present application can be used to execute the control method for a coal mine communication system provided in the embodiment of the present application. The device is used to implement the above-mentioned embodiments and preferred implementation modes, and those that have been described will not be repeated. As used below, the term "module" can implement a combination of software and / or hardware for a predetermined function. Although the device described in the following embodiments is preferably implemented in software, the implementation of hardware, or a combination of software and hardware, is also possible and conceivable.

[0229] The following is an introduction to the control device of the coal mine communication system provided in the embodiment of the present application.

[0230] Figure 7 1 is a structural block diagram of a control device for a coal mine communication system according to an embodiment of the present application. Figure 7 As shown, the device comprises:

[0231] A first acquisition unit 10 is used to acquire communication information, wherein the communication information is information about the link status of the first link currently used for communication between the downhole subsystem and the uphole subsystem;

[0232] A determination unit 20, configured to determine whether the first link has communication abnormality according to the communication information;

[0233] The control unit 30 is used to control the downhole subsystem and the surface subsystem to use the second link for communication when the first link communication is abnormal.

[0234] Through this embodiment, during the operation of the coal mine communication system, it can be determined whether the link has communication abnormalities, and in the case of link communication abnormalities, the link can be replaced in time for communication, thereby improving the stability of the coal mine communication system of this solution.

[0235] In the specific implementation process, the above-mentioned communication information includes one or more of a bit error rate, a signal-to-noise ratio, a signal strength, a throughput and a delay time. The determination unit includes a first determination module and a second determination module. The first determination module is used to determine that the above-mentioned first link communication is abnormal when the above-mentioned communication information meets the preset conditions, wherein the above-mentioned preset conditions include one or more of the first preset conditions, the second preset conditions, the third preset conditions, the fourth preset conditions and the fifth preset conditions. The first preset condition is that the above-mentioned bit error rate is greater than a preset bit error rate threshold, the second preset condition is that the above-mentioned signal-to-noise ratio is less than a preset signal-to-noise ratio threshold, the third preset condition is that the above-mentioned signal strength is less than a preset signal strength threshold, the fourth preset condition is that the above-mentioned throughput is less than a preset throughput threshold, and the fifth preset condition is that the above-mentioned delay time is greater than a preset time threshold; the second determination module is used to determine that the above-mentioned first link communication is normal when the above-mentioned communication information does not meet the above-mentioned preset conditions.

[0236] In this solution, by setting these preset conditions, the system can detect the degradation of link performance in time, thereby avoiding the deterioration of communication quality and maintaining the accuracy and timeliness of data transmission. This mechanism can preventively detect the link status and respond in advance when the link begins to show signs of instability to prevent major failures. The system reduces the need for manual intervention and improves the efficiency and intelligence level of link management by automatically detecting and evaluating the link status. For links that do not meet the preset conditions, the system can automatically switch to the backup link, avoiding resource waste while ensuring the normal operation of key services. By switching to the normal link in time, the system can maintain high availability and maintain the continuity and stability of the communication network even under harsh conditions.

[0237] In some embodiments, the device further includes a second acquisition unit, a construction unit and a processing unit, wherein the second acquisition unit is used to acquire configuration information before acquiring communication information, wherein the configuration information includes network topology information and / or business demand information, the network topology information is information on the physical layout and connection method of the transmission network, and the business demand information is information on the communication service requirements of the coal mine 5G network for specific businesses; the construction unit is used to construct a configuration generation model, wherein the configuration generation model is trained using multiple sets of training data, each set of training data in the multiple sets of training data includes historical configuration information acquired within a historical time period, and historical configuration schemes corresponding to the historical configuration information, wherein the historical configuration schemes are schemes for historical devices, historical locations of historical devices and historical links used by historical devices that meet the needs of specific business communications; the processing unit is used to input the configuration information into the configuration generation model to obtain a configuration scheme corresponding to the configuration information.

[0238] In this solution, through intelligent generation of models, the system can automatically adjust the network configuration according to the real-time network topology and business needs to meet the current communication service needs in the most optimized way. Compared with traditional manual configuration, this method greatly improves the efficiency and accuracy of configuration. Models based on historical data and machine learning can reduce failures and misconfigurations caused by manual operations, make the network configuration process more robust, and reduce the network failure rate. By optimizing the configuration, it can ensure that the network is in the best state in key indicators such as latency, bandwidth, and throughput, thereby improving the user's communication experience in the coal mine 5G network, while improving the performance and reliability of the service.

[0239] During the specific implementation process, the above-mentioned device also includes a third acquisition unit, a numbering unit and a transmission unit. The third acquisition unit is used to acquire multiple time slots before acquiring communication information; the numbering unit is used to number all of the above-mentioned time slots in the order of the above-mentioned time slots to obtain the time slot numbers corresponding to all of the above-mentioned time slots; the transmission unit is used to transmit data in all of the above-mentioned time slots in sequence according to the order of the above-mentioned time slot numbers.

[0240] In this solution, by evenly distributing data to multiple time slots for transmission, congestion caused by concentrated data transmission in certain time slots can be avoided, thereby improving the efficiency of data transmission and the throughput of the system. The strategy of transmitting data in each time slot can better utilize network resources, avoid waste of resources, and ensure that each user or device can obtain sufficient transmission bandwidth when needed. Orderly time slot management and data transmission can reduce data waiting time, thereby reducing transmission delay, which is especially important for applications with high real-time requirements (such as video surveillance, remote control, etc.). Time slot numbering facilitates fault monitoring and processing. By monitoring the data transmission of each time slot, the problem time slot can be quickly located, and targeted fault detection and repair can be carried out.

[0241] The control device of the coal mine communication system includes a processor and a memory. The first acquisition unit, the determination unit and the control unit are stored in the memory as program units, and the processor executes the program units stored in the memory to implement corresponding functions. The modules are all located in the same processor; or, the modules are located in different processors in any combination.

[0242] The processor includes a kernel, which retrieves the corresponding program unit from the memory. One or more kernels can be set, and the problem of poor stability of the coal mine communication system in the prior art can be solved by adjusting the kernel parameters.

[0243] The memory may include non-permanent memory in a computer-readable medium, random access memory (RAM) and / or non-volatile memory, such as read-only memory (ROM) or flash RAM, and the memory includes at least one memory chip.

[0244] An embodiment of the present invention provides a computer-readable storage medium, wherein the computer-readable storage medium includes a stored program, wherein when the program is executed, the device where the computer-readable storage medium is located is controlled to execute the control method of the coal mine communication system.

[0245] An embodiment of the present invention provides a processor, and the processor is used to run a program, wherein the control method of the coal mine communication system is executed when the program is run.

[0246] The embodiment of the present invention provides a device, which includes a processor, a memory, and a program stored in the memory and executable on the processor, and when the processor executes the program, at least the steps of the control method of the coal mine communication system are implemented. The device in this article can be a server, a PC, a PAD, a mobile phone, etc.

[0247] A computer program product includes a non-volatile computer-readable storage medium, wherein the non-volatile computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the steps of the control method of the coal mine communication system in each embodiment of the present application are implemented.

[0248] Obviously, those skilled in the art should understand that the above modules or steps of the present invention can be implemented by a general computing device, they can be concentrated on a single computing device, or distributed on a network composed of multiple computing devices, they can be implemented by a program code executable by a computing device, so that they can be stored in a storage device and executed by the computing device, and in some cases, the steps shown or described can be executed in a different order than here, or they can be made into individual integrated circuit modules, or multiple modules or steps therein can be made into a single integrated circuit module for implementation. Thus, the present invention is not limited to any specific combination of hardware and software.

[0249] Those skilled in the art will appreciate that the embodiments of the present application may be provided as methods, systems, or computer program products. Therefore, the present application may adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment in combination with software and hardware. Moreover, the present application may adopt the form of a computer program product implemented in one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) that include computer-usable program code.

[0250] The present application is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the embodiments of the present application. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of the processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0251] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0252] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0253] In a typical configuration, a computing device includes one or more processors (CPU), input / output interfaces, network interfaces, and memory.

[0254] The memory may include non-permanent memory in a computer-readable medium, random access memory (RAM) and / or non-volatile memory in the form of read-only memory (ROM) or flash RAM. The memory is an example of a computer-readable medium.

[0255] Computer readable media include permanent and non-permanent, removable and non-removable media that can be implemented by any method or technology to store information. Information can be computer readable instructions, data structures, program modules or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technology, compact disk read-only memory (CD-ROM), digital versatile disk (DVD) or other optical storage, magnetic cassettes, magnetic disk storage or other magnetic storage devices or any other non-transmission media that can be used to store information that can be accessed by a computing device. As defined herein, computer readable media does not include temporary computer readable media (transitory media), such as modulated data signals and carrier waves.

[0256] It should also be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, commodity or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, commodity or device. In the absence of more restrictions, the elements defined by the sentence "comprises a ..." do not exclude the existence of other identical elements in the process, method, commodity or device including the elements.

[0257] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A coal mine communication system, characterized in that: include: An underground subsystem, wherein the underground subsystem is a communication transmission system located inside a mine, and the underground subsystem comprises at least a first 5G communication device and a first SPN device, and the first 5G communication device and the first SPN device are in communication connection; The uphole subsystem is a communication transmission system located on the ground, and the uphole subsystem at least includes a second 5G communication device and a second SPN device, and the second 5G communication device and the second SPN device are communicatively connected, wherein the downhole subsystem and the uphole subsystem are communicatively connected through the first 5G communication device, the first SPN device, the second 5G communication device and the second SPN device.

2. The coal mine communication system according to claim 1, characterized in that: The downhole subsystem also includes: The BBU device is used to pre-process the transmitted signal, wherein the pre-processing method includes one or more of encoding, decoding, modulation and demodulation; The first substation is used to realize power conversion underground, wherein the first 5G communication equipment, the first SPN equipment, the BBU equipment and the first substation form a first ring network communication connection.

3. The coal mine communication system according to claim 1, characterized in that: The above-the-hole subsystem further comprises: The second substation is used to realize power conversion on the well; A data room is used to store the transmitted data, wherein the second 5G communication equipment, the second SPN equipment, the second substation and the data room form a second ring network communication connection.

4. The coal mine communication system according to claim 1, characterized in that: The coal mine communication system also includes: A plurality of optical cables, wherein the downhole subsystem and the uphole subsystem are communicatively connected via at least one of the optical cables; The repeater is located in the transmission path of all the optical cables, and the repeater is used to amplify the transmitted signal.

5. A control method for a coal mine communication system according to any one of claims 1 to 4, characterized in that: The method comprises: Acquiring communication information, wherein the communication information is information about a link status of a first link currently used for communication between the downhole subsystem and the uphole subsystem; Determining, according to the communication information, whether the first link has communication abnormality; In the case where the first link communication is abnormal, the downhole subsystem and the uphole subsystem are controlled to use the second link communication.

6. The method according to claim 5, characterized in that The communication information includes one or more of a bit error rate, a signal-to-noise ratio, a signal strength, a throughput, and a delay time, and determining whether the first link has communication abnormality according to the communication information includes: In the case where the communication information satisfies a preset condition, determining that the first link communication is abnormal, wherein the preset condition includes one or more of a first preset condition, a second preset condition, a third preset condition, a fourth preset condition and a fifth preset condition, the first preset condition is that the bit error rate is greater than a preset bit error rate threshold, the second preset condition is that the signal-to-noise ratio is less than a preset signal-to-noise ratio threshold, the third preset condition is that the signal strength is less than a preset signal strength threshold, the fourth preset condition is that the throughput is less than a preset throughput threshold, and the fifth preset condition is that the delay time is greater than a preset time threshold; When the communication information does not satisfy the preset condition, it is determined that the communication of the first link is normal.

7. The method according to claim 5, characterized in that Before acquiring the communication information, the method further includes: Obtain configuration information, wherein the configuration information includes network topology information and / or business demand information, the network topology information is information about the physical layout and connection mode of the transmission network, and the business demand information is information about the communication service demand of the coal mine 5G network for specific services; Constructing a configuration generation model, wherein the configuration generation model is trained using multiple sets of training data, each set of training data in the multiple sets of training data includes historical configuration information acquired in a historical time period, and a historical configuration scheme corresponding to the historical configuration information, wherein the historical configuration scheme is a scheme that satisfies historical devices used for specific business communications, historical locations of historical devices, and historical links used by historical devices; The configuration information is input into the configuration generation model to obtain a configuration solution corresponding to the configuration information.

8. The method according to claim 5, characterized in that Before acquiring the communication information, the method further includes: Get multiple time slots; Numbering all the time slots according to the order of the time slots to obtain time slot numbers corresponding to all the time slots; Data is transmitted in all the time slots in sequence according to the order of the time slot numbers.

9. A control device for a coal mine communication system according to any one of claims 1 to 4, characterized in that: The device comprises: A first acquisition unit, configured to acquire communication information, wherein the communication information is information on a link state of a first link currently used for communication between the downhole subsystem and the uphole subsystem; a determining unit, configured to determine whether the first link has communication abnormality according to the communication information; The control unit is used to control the downhole subsystem and the surface subsystem to use the second link for communication when the first link communication is abnormal.

10. A computer program product, comprising a computer program, characterized in that When the computer program is executed by a processor, the steps of the method for controlling a coal mine communication system according to any one of claims 5 to 8 are implemented.

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