Coal mine working face hydraulic support monitoring data transmission method, system, equipment, medium and monitoring system

Abstract

The invention discloses a coal mine working face hydraulic support monitoring data transmission method, system and device, a medium and a monitoring system.The method comprises the steps that firstly, each sensor serves as an addressing sensor, and an addressing frame containing addressing sensor ID information is broadcasted; wherein two sensors form a group of sensors and are mounted on the left side and the right side of the hydraulic support according to a preset interval, and the single digits of the ID addresses of the sensors in the same group are different and are adjacent odd-even numbers; an addressing success frame replied by each positioning base station after receiving the addressing frame is acquired, if the ID information of other sensors except the addressing sensor is the same as the ID information of the addressing sensor, the addressing success frames replied by other sensors are acquired, and a transmission path table is established by using each addressing sensor based on all the replied addressing success frames; and finally, transmitting the monitoring data of the hydraulic support based on the transmission path table, thereby improving timeliness and reliability of monitoring data transmission of the hydraulic support on the coal mine working face.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of coal mine safety monitoring, and in particular to a coal mine working face hydraulic support monitoring data transmission method, system, device, medium and monitoring system. BACKGROUND

[0002] Coal mine working face hydraulic support pressure monitoring is a key technology to ensure safe and efficient production of coal mines. It continuously senses the stress state of the support, identifies abnormal changes in roof pressure and potential support failures in real time, provides direct early warning protection for preventing major accidents such as roof collapse, and significantly improves the safety level of underground operations. At the same time, monitoring data is an important basis for optimizing support action and adjusting support parameters, supporting automatic support movement and efficient cooperation of the coal mining machine, and improving safety and efficiency and avoiding accidents.

[0003] The current coal mine working face hydraulic support pressure monitoring generally uses pressure sensors for collection, uploads to the upper computer platform through wired and wireless communication, and analyzes the collected pressure data through the upper computer platform software to obtain the support stress state and roof pressure distribution law, thereby providing a basis for roof management and optimizing the coordinated control of the coal mining machine cutting speed and support movement process.

[0004] Among them, the wiring of wired communication is complex and has high maintenance cost, which limits the expandability of large mining height or longwall working face. When the working face hydraulic support moves and pushes, the cable is easily squeezed and broken; at the same time, the underground water and acidic coal dust accelerate the aging of the cable outer skin and the rusting of the metal joint, resulting in signal distortion or interruption, which leads to poor reliability of wired communication. Wireless communication avoids cumbersome wiring, but needs to solve problems such as signal shielding (such as hydraulic support column shielding) and multi-node interference, and usually uses "wireless relay + master-slave routing" topology optimization coverage. However, this wireless transmission method, the metal support and the rock layer produce strong reflection and absorption of wireless signals (Wi-Fi, ZigBee), resulting in serious signal attenuation. During the mining process, the support pushing and other operations cause the sensor to be installed, forming a new monitoring blind area, resulting in low system communication reliability, and frequent use of repeaters, increasing maintenance difficulty. In summary, the existing coal mine working face hydraulic support pressure monitoring data transmission method has the defects of high maintenance difficulty, low timeliness and poor reliability. SUMMARY

[0005] The purpose of the present application is to provide a coal mine working face hydraulic support monitoring data transmission method, system, device, medium and monitoring system, to improve the timeliness and reliability of coal mine working face hydraulic support monitoring data transmission, and to reduce the maintenance difficulty of the monitoring equipment.

[0006] To achieve the above purpose, the present application provides a coal mine working face hydraulic support monitoring data transmission method, comprising: broadcasting a sending of an addressing frame containing the ID information of the addressing sensor; wherein two sensors are taken as a group of sensors, and are installed on the left and right sides of the hydraulic support according to a preset interval, the unit digit of the ID address of the same group of sensors is different and is adjacent odd or even number; acquiring an addressing success frame replied by each positioning base station after receiving the addressing frame; if the ID information of other sensors except the addressing sensor is the same as the ID information of the addressing sensor, then acquiring the addressing success frame replied by the other sensors; establishing a transmission path table by each addressing sensor based on all the replied addressing success frames; transmitting the monitoring data of the hydraulic support based on the transmission path table.

[0007] Optionally, after the transmission path table is established by each addressing sensor based on all the replied addressing success frames, the method further comprises: performing unified time calibration and collection cycle initialization on the transmission path table established by all the addressing sensors.

[0008] Optionally, the transmitting the monitoring data of the hydraulic support based on the transmission path table comprises: if the difference between the monitoring data to be currently transmitted and the monitoring data last transmitted is less than a preset difference threshold value and the current number of times of non-transmission is less than a preset number threshold value, then the pressure value data to be currently transmitted is not transmitted; if the difference between the monitoring data to be currently transmitted and the monitoring data last transmitted is greater than or equal to the preset difference threshold value and the current number of times of non-transmission is greater than the preset number threshold value, then the monitoring data is first transmitted to a first transmission path, and a successful return frame is waited for to be received within a predetermined time; wherein the first transmission path is the transmission path closest to each positioning base station in the transmission path table; if the successful return frame is not received within the predetermined time, then the monitoring data to be currently transmitted is transmitted to a second transmission path; wherein the first transmission path is other transmission path in the transmission path table except the transmission path closest to each positioning base station; if the successful return frame of the second transmission path is not received within the predetermined time, then each sensor is taken as an addressing sensor again to reestablish the transmission path table.

[0009] Optionally, the establishing the transmission path table by each addressing sensor according to all the replied addressing success frames comprises: analyzing all the replied addressing success frames by each addressing sensor to acquire the sensor ID address of the reply; The transmission path table is established according to the ID address of the reply sensor closest to each positioning base station, the ID address of the reply sensor equidistant from each positioning base station and the ID address of the reply sensor closest to the addressed sensor.

[0010] Optionally, if the ID information of the other sensor except the addressed sensor is the same as the ID information of the addressed sensor, the addressed success frame replied by the other sensor is acquired. If the unit digit of the ID address of the other sensor except the addressed sensor is the same as the unit digit of the ID address of the addressed sensor, the addressed success frame replied by the other sensor is acquired.

[0011] To achieve the above object, the application further provides a coal mine working face hydraulic support monitoring data transmission system, comprising: An addressing module is configured to broadcast an addressed frame containing ID information of an addressed sensor, with each sensor as the addressed sensor; wherein two sensors are taken as a group of sensors, and are installed on the left and right sides of the hydraulic support at a preset interval, with the unit digits of the ID addresses of the sensors in the same group being different and adjacent odd or even numbers; A first acquisition addressing module is configured to acquire an addressed success frame replied after each positioning base station receives the addressed frame; A second acquisition addressing module is configured to acquire the addressed success frame replied by the other sensor if the ID information of the other sensor except the addressed sensor is the same as the ID information of the addressed sensor; A transmission path construction module is configured to establish a transmission path table based on all the replied addressed success frames by each addressed sensor; A data transmission module is configured to transmit the monitoring data of the hydraulic support based on the transmission path table.

[0012] To achieve the above object, the application further provides a coal mine working face hydraulic support monitoring system, comprising at least two positioning base stations, a plurality of sensors, the coal mine working face hydraulic support monitoring data transmission system and an upper computer platform as described above; The two positioning base stations are installed at the two ends of the coal mine working face, and are configured to receive and upload the hydraulic support monitoring data, send initialization information and addressed reply frames; The plurality of sensors are configured to collect and send the hydraulic support monitoring data, send the addressed frames and store the transmission path table; The upper computer platform is configured to receive and analyze the hydraulic support monitoring data uploaded by the positioning base stations.

[0013] Optionally, the sensor is a pressure sensor, comprising a UWB module, a pressure monitoring module and a pressure indication module.

[0014] To achieve the above object, the application further provides a terminal device, comprising a processor, a memory and a computer program stored in the memory and configured to be executed by the processor, wherein the processor implements the coal mine working face hydraulic support monitoring data transmission method according to any one of the above when executing the computer program.

[0015] To achieve the above object, the application further provides a computer readable storage medium comprising a stored computer program, wherein the computer readable storage medium controls the device where the computer readable storage medium is located to execute the coal mine working face hydraulic support monitoring data transmission method according to any one of the above when the computer program runs.

[0016] Compared with the prior art, the coal mine working face hydraulic support monitoring data transmission method, system, device, medium and monitoring system provided by the application, by designing an ID code containing partition and same-group partition functions for the hydraulic support pressure monitoring sensor, constructing a transmission path table through the addressing interaction of the positioning base station and the sensor, controlling data transmission through a preset rule, and uniformly performing time calibration and collection cycle initialization on all sensors, the sensor can collect pressure data regularly and efficiently transmit the data to the base station as needed. The system data transmission efficiency is improved, the amount of invalid data is reduced, the data time reference is ensured to be consistent through unified calibration and initialization, the maintenance labor cost is reduced, and finally the precise and efficient monitoring of the hydraulic support pressure of the fully mechanized working face is realized, which provides reliable support for roof safety warning. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the present application, the drawings used in the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0018] Figure 1 is a flowchart of a coal mine working face hydraulic support monitoring data transmission method provided by an embodiment of the present application; Figure 2 is a structural schematic diagram of a pressure sensor provided by an embodiment of the present application; Figure 3 is another flowchart of a coal mine working face hydraulic support monitoring data transmission method provided by an embodiment of the present application; Figure 4 is a structural block diagram of a coal mine working face hydraulic support monitoring data transmission system provided by an embodiment of the present application; Figure 5 is a device arrangement schematic diagram of a coal mine working face hydraulic support monitoring system provided by an embodiment of the present application; Figure 6 This is a structural block diagram of a terminal device provided in an embodiment of the present invention. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] It should be noted that the personnel positioning management system is one of the "six essential systems" that coal mines must install. In existing technologies, most coal mines have already built personnel positioning management systems based on UWB (Ultra Wide Band) positioning technology. By covering the entire mine with UWB wireless signals, they achieve the positioning management and emergency rescue of underground personnel. This invention, without affecting the personnel positioning function, reuses the existing UWB network for personnel positioning in the coal mine. It uses UWB signals and transmission networks to upload monitoring data of the coal mine roof, improving the timeliness and reliability of monitoring data transmission while reducing equipment investment and maintenance difficulty.

[0021] See Figure 1 , Figure 1 This is a flowchart of a data transmission method for monitoring hydraulic supports in a coal mine face, provided by an embodiment of the present invention. The data transmission method for monitoring hydraulic supports in a coal mine face includes steps S1 to S5: S1. Treat each sensor as an addressing sensor and broadcast an addressing frame containing the addressing sensor ID information; wherein, two sensors are grouped together and installed on the left and right sides of the hydraulic support at a preset interval. The units digits of the ID addresses of sensors in the same group are different and are adjacent odd or even numbers. Sensors with the same tens digit of their ID addresses are divided into one area. It should be noted that in the personnel positioning management system, the personnel positioning base stations are installed at both ends of the fully mechanized mining face. In this embodiment of the invention, it is only necessary to install two sensors as a group of sensors on the left and right sides of the hydraulic support according to a preset interval, as needed.

[0022] See Figure 2 , Figure 2 This is a structural schematic diagram of a pressure sensor provided in an embodiment of the present invention. Figure 2As shown, the sensor in this embodiment of the invention is a pressure sensor, which internally includes a UWB module, a pressure monitoring module, and a pressure indication module. The pressure acquisition module of the sensor has a KJ10 interface, which can be directly connected to the pressure relief valve of the hydraulic support, so that the sensor can acquire the pressure of the hydraulic support and transmit it through the UWB module. The UWB communication module can send monitoring data and also receive data.

[0023] For example, in order to conveniently obtain the pressure of the hydraulic support, a pressure sensor can be installed on the pressure relief valve of the hydraulic support. A set of sensors can be installed every 3 to 5 hydraulic supports to monitor the pressure of the left and right supports respectively.

[0024] It is worth noting that the sensor ID address in this embodiment of the invention is encoded with a multi-digit number, including at least a tens digit and a units digit level. Sensors with the same tens digit of their ID address are grouped into one zone. This design allows sensors to obtain paths only across zones during path planning, avoiding path redundancy within the same zone and improving path planning efficiency. The units digit is used for path diversity within the same zone and for distinguishing sensors within the same group. Firstly, it determines the communication response within the same zone: when other sensors receive an addressing frame, they only respond if the units digit of their own ID matches that of the addressing sensor, ensuring that each sensor in the same zone (corresponding to units 0-9 if there are 10 sensors) has a different transmission path, improving system robustness. Secondly, it distinguishes sensors within the same group: sensors installed at intervals of 3-5 hydraulic supports (monitoring the pressure of the left and right pillars of the same support) have adjacent odd / even IDs. The units digit (or a combination of odd / even) helps distinguish the sensors corresponding to the left and right pillars, facilitating the system's acquisition of pressure data from the left and right pillars of the same support.

[0025] Furthermore, after each group of sensors is installed, each sensor is used as an addressing sensor, and an addressing frame containing the addressing sensor's local ID information is broadcast.

[0026] S2. Obtain the addressing success frame replied by each positioning base station after receiving the addressing frame; After receiving the addressing frame, each positioning base station parses the type of the addressing frame and the ID of the addressing sensor, and replies with an addressing success frame containing device type and ID information.

[0027] S3. If the ID information of other sensors besides the addressing sensor is the same as the ID information of the addressing sensor, then obtain the addressing success frame replied by the other sensors. In one alternative embodiment, S3 includes: If the units digit of the ID address of a sensor other than the addressing sensor is the same as the units digit of the ID address of the addressing sensor, then the addressing success frame replied by the other sensor is obtained.

[0028] For example, after receiving the data, other sensors will first analyze and obtain the ID of the addressing sensor. If the last digit of the ID address of other sensors is the same as the last digit of the ID address of the addressing sensor, the other sensors will reply with an addressing success frame containing the device type and ID address. This ensures that sensors in the same area have different transmission paths, thereby improving the robustness of data transmission.

[0029] S4. Build a transmission path table using each addressing sensor based on all the successful addressing frames returned; In one alternative embodiment, S4 includes: S401. Use each addressing sensor to parse all the replying address success frames and obtain the replying sensor ID address; S402. Establish a transmission path table based on the response sensor ID address closest to each positioning base station, the response sensor ID address equidistant from each positioning base station and the addressing sensor, and the response sensor ID address closest to the addressing sensor.

[0030] In one alternative embodiment, after S4, the method further includes: Perform unified time calibration and acquisition cycle initialization on the transmission path tables established for all addressed sensors.

[0031] For example, a command containing unified initialization information is broadcast to all sensors via a UWB network. The clock calibration information carries the current standard timestamp of a certain positioning base station. After receiving the command, all sensors align their own clocks with the timestamp and set the acquisition period to 5 seconds. After each sensor completes the calibration and period setting, it sends an acknowledgment frame to the positioning base station via UWB. After receiving the acknowledgment information from all sensors, the base station completes the unified initialization.

[0032] It is worth noting that unified time calibration can ensure that the pressure data collected by all sensors have a consistent time reference, avoiding time misalignment when the host computer platform analyzes the pressure change trend of the hydraulic support due to clock deviation, and improving the accuracy of roof early warning analysis; unified acquisition cycle can avoid redundant data or data loss caused by different sensors having chaotic acquisition frequencies, and reduce the UWB network transmission load.

[0033] S5. Transmit the monitoring data of the hydraulic support based on the transmission path table.

[0034] In one alternative embodiment, S5 includes: S501. If the difference between the current monitoring data to be sent and the last monitoring data sent is less than the preset difference threshold and the current number of times not sent is less than the preset number of times threshold, then the current pressure value data to be sent will not be sent. S502. If the difference between the current monitoring data to be sent and the last monitoring data sent is greater than or equal to a preset difference threshold and the current number of times the data has not been sent is greater than a preset number of times threshold, then the monitoring data is first sent to the first transmission path, and the system waits for a successful return frame within a predetermined time. Wherein, the first transmission path is the transmission path closest to each positioning base station in the transmission path table. S503. If a successful return frame is not received within the predetermined time, the monitoring data to be sent is sent to the second transmission path; wherein, the first transmission path is any transmission path in the transmission path table other than the transmission path closest to each positioning base station. S504. If a successful return frame of the second transmission path is not received within the predetermined time, then each sensor is re-addressed as an addressing sensor to re-establish the transmission path table.

[0035] For example, after initialization, each sensor collects data according to the initialization time interval. If the difference between the collected data and the previously sent monitoring data exceeds 0.5 MPa and the number of times the data was not sent is less than 3, then the current data will not be sent. Otherwise, the current monitoring data is first sent to the transmission path closest to the positioning base station, and a successful return frame is waited for within a specified time. If no successful frame is received, the current monitoring data is resent to another transmission path. If no successful frame is received from another transmission path within the specified time, each sensor is re-sent as an addressing sensor to send an addressing frame, and the transmission path is re-planned.

[0036] In summary, see Figure 3 , Figure 3 This is another schematic flowchart of a data transmission method for monitoring hydraulic supports in coal mine working faces, provided by an embodiment of the present invention. For example, as shown... Figure 3As shown, personnel positioning base stations are installed at both ends of the fully mechanized mining face. The pressure monitoring sensors have sequentially numbered 1D addresses starting from n. Adjacent odd and even numbered sensors are grouped together and installed on the left and right pillars of the hydraulic support, arranged in 3-number sequences starting from support number 1. Five sensors are installed at intervals according to a grouping principle. Each addressing sensor (#X) then broadcasts an addressing frame with its own ID. Upon receiving this frame, the base station replies with a success frame. Other sensors with identical units and tens digits also reply with success frames to sensor #X. Sensor #X stores its reply sensor ID. Next, the base station sends initialization information to all sensors, enabling them to collect pressure monitoring data at fixed time intervals based on a unified time base. Subsequently, the sensors periodically collect bracket pressure data and compare it with the previously transmitted data. If the pressure difference is greater than 0.5 MPa or the number of times data is not transmitted is greater than or equal to 3, the data is sent to the two nearest devices along the path to the base station. If a success frame is received within a specified time, transmission is complete; otherwise, it is sent to other devices along the path. If still not received, the data is retransmitted and stored in the path table. If the pressure difference is less than or equal to 0.5 MPa and the number of times data is not transmitted is less than 3, transmission is temporarily suspended, and periodic data collection continues.

[0037] Therefore, this invention, through designing ID codes with partitioning and group differentiation functions for hydraulic support pressure monitoring sensors, constructs a transmission path table through addressing interaction between the positioning base station and the sensors, controls data transmission through preset rules, and uniformly calibrates and initializes the acquisition cycle of all sensors. This enables the sensors to collect pressure data on a regular basis and transmit it to the base station efficiently as needed. This invention improves system data transmission efficiency and reduces invalid data volume through ID partitioning, path planning, and data transmission rules. Furthermore, unified calibration and initialization ensure consistent data time references and reduce maintenance manpower costs. Ultimately, it achieves accurate and efficient monitoring of hydraulic support pressure in fully mechanized mining faces, providing reliable support for roof safety early warning.

[0038] Based on the above method items, the present invention provides corresponding system items embodiments.

[0039] See Figure 4 , Figure 4 This is a structural block diagram of a monitoring and data transmission system for hydraulic supports in a coal mine working face, provided by an embodiment of the present invention. The monitoring and data transmission system for hydraulic supports in a coal mine working face includes: Addressing module 21 is used to treat each sensor as an addressing sensor and broadcast an addressing frame containing addressing sensor ID information; wherein, two sensors are grouped together and installed on the left and right sides of the hydraulic support at a preset interval, and the last digit of the ID address of the sensors in the same group is different and is an adjacent odd or even number; The first address acquisition module 22 is used to acquire the address success frame replied by each positioning base station after receiving the address frame; The second addressing module 23 obtains the addressing success frame returned by the other sensor if the ID information of other sensors besides the addressing sensor is the same as the ID information of the addressing sensor. Transmission path construction module 24 is used to build a transmission path table based on all the addressing success frames returned by each addressing sensor; The data transmission module 25 is used to transmit the monitoring data of the hydraulic support based on the transmission path table.

[0040] It should be noted that the coal mine working face hydraulic support monitoring data transmission system provided in this embodiment of the invention is used to execute all the process steps of the coal mine working face hydraulic support monitoring data transmission method in the above embodiment. The working principles and beneficial effects of the two are one-to-one, so they will not be described again.

[0041] This invention also provides a monitoring system for hydraulic supports in a coal mine working face, which includes at least two positioning base stations, multiple sensors, a data transmission system for monitoring hydraulic supports in a coal mine working face as described above, and a host computer platform. The two positioning base stations are installed at both ends of the coal mine working face and are used to receive and upload hydraulic support monitoring data, send initialization information and addressing response frames; Multiple sensors are used to collect and transmit hydraulic support monitoring data, send addressing frames, and store transmission path tables; The host computer platform is used to receive and analyze the monitoring data of the hydraulic support uploaded by the positioning base station.

[0042] See Figure 5 , Figure 5 This is a schematic diagram of the equipment layout for a hydraulic support monitoring system for a coal mine working face, provided in an embodiment of the present invention. Figure 5 As shown, the positioning base station is installed at both ends of the fully mechanized coal mining face to maximize coverage of the face. The base station receives pressure monitoring data from multiple sensors via its internal UWB module and can also send data to the sensors. Sensors are installed on the pressure relief valves of the hydraulic supports for direct pressure measurement. A group of sensors is installed every 3-5 supports to monitor the pressure of the left and right supports respectively. Sensors in the same group have different IDs that are adjacent odd or even numbers, facilitating the system's acquisition of the left and right support pressures of the same hydraulic support. Sensors with the same tens digit ID (e.g., 1-9, x1-x9) are grouped into one area. After collecting pressure data, the data is uploaded to the host computer platform analysis and processing software via the hydraulic support monitoring data transmission module.

[0043] This invention provides a monitoring system for hydraulic supports in coal mine working faces. By deploying at least two positioning base stations at both ends of the working face, it leverages the coverage capabilities of the UWB network in the technical solution to avoid signal blind spots and attenuation issues common in complex roadway environments, ensuring the reliability and continuity of sensor monitoring data transmission. Multiple sensors combine data acquisition, addressing frame transmission, and transmission path table storage functions. Combined with the path planning design of the transmission system, it can significantly reduce invalid data transmission, lower network load, and improve the overall system efficiency. The centralized analysis and processing of data uploaded from the base stations by the host computer platform can quickly capture the pressure change trend of the hydraulic supports, providing accurate data support for roof safety early warning and improving the reliability of early warning analysis. At the same time, the system does not require separate deployment of communication cables and data acquisition substations, and can reuse the base station resources of the existing personnel positioning system in the coal mine, significantly reducing system construction costs and subsequent maintenance labor costs, achieving reduced manpower and increased efficiency, and optimizing manpower allocation.

[0044] This invention also provides a terminal device, such as... Figure 6 The diagram shown is a structural block diagram of a preferred embodiment of a terminal device provided by the present invention. The terminal device includes a processor 31, a memory 32, and a computer program stored in the memory 32 and configured to be executed by the processor 31. When the processor 31 executes the computer program, it implements the data transmission method for monitoring hydraulic supports in coal mine working faces as described in any of the above embodiments.

[0045] In addition, embodiments of the present invention also provide a computer-readable storage medium, the computer-readable storage medium including a stored computer program, wherein, when the computer program is executed, it controls the device where the computer-readable storage medium is located to execute the data transmission method for monitoring hydraulic supports in coal mine working faces as described in any of the above embodiments.

[0046] When the processor 31 executes the computer program, it implements the steps in the above-described embodiment of the hydraulic support monitoring data transmission method for coal mine working faces, for example... Figure 1 The diagram shows all the steps of the data transmission method for monitoring hydraulic supports in coal mine working faces.

[0047] Preferably, the computer program can be divided into one or more modules / units, which are stored in the memory 32 and executed by the processor 31 to complete the present invention. The one or more modules / units can be a series of computer program instruction segments capable of performing specific functions, which describe the execution process of the computer program in the terminal device.

[0048] The processor 31 can be a central processing unit (CPU), or other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor can be a microprocessor, or the processor 31 can be any conventional processor. The processor 31 is the control center of the terminal device, connecting various parts of the terminal device through various interfaces and lines.

[0049] The memory 32 mainly includes a program storage area and a data storage area. The program storage area can store the operating system, applications required for at least one function, etc., and the data storage area can store related data, etc. In addition, the memory 32 can be a high-speed random access memory, or a non-volatile memory, such as a plug-in hard disk, a smart media card (SMC), a secure digital (SD) card, and a flash card, etc., or the memory 32 can also be other volatile solid-state storage devices.

[0050] It should be noted that the aforementioned terminal devices may include, but are not limited to, processors and memory, as will be understood by those skilled in the art. Figure 6 The structural block diagram shown is merely a structural example of the terminal device described above and does not constitute a limitation on the structure of the terminal device. The terminal device may include more or fewer components than shown, or combine certain components, or use different components.

[0051] The above description represents the preferred embodiments of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of the present invention, and these improvements and modifications are also considered to be within the scope of protection of the present invention.

Claims

1. A coal mine working face hydraulic support monitoring data transmission method, characterized in that, The method comprises the following steps: Each sensor is taken as an addressing sensor, and an addressing frame containing the ID information of the addressing sensor is broadcasted; two sensors are taken as a group of sensors, and are installed on the left and right sides of the hydraulic support at a preset interval; the unit digit of the ID address of the sensors in the same group is different and is adjacent odd or even number; An addressing success frame returned by each positioning base station after receiving the addressing frame is acquired; If the ID information of the other sensors except the addressing sensor is the same as the ID information of the addressing sensor, the addressing success frame returned by the other sensors is acquired; A transmission path table is established by each addressing sensor based on all the returned addressing success frames; The monitoring data of the hydraulic support is transmitted based on the transmission path table.

2. The coal face hydraulic support monitoring data transmission method of claim 1, wherein, After the transmission path table is established by each addressing sensor based on all the returned addressing success frames, the method further comprises the following steps: The transmission path tables established by all the addressing sensors are subjected to unified time calibration and collection cycle initialization.

3. The coal mine working face hydraulic support monitoring data transmission method of claim 2, wherein, The monitoring data of the hydraulic support is transmitted based on the transmission path table, which comprises the following steps: If the difference between the current monitoring data to be transmitted and the last monitoring data transmitted is less than a preset difference threshold value, and the current number of times of non-transmission is less than a preset number threshold value, the current monitoring data to be transmitted is not transmitted; If the difference between the current monitoring data to be transmitted and the last monitoring data transmitted is greater than or equal to the preset difference threshold value, and the current number of times of non-transmission is greater than the preset number threshold value, the monitoring data is first transmitted to a first transmission path, and a successful return frame is received within a predetermined time; the first transmission path is the transmission path closest to each positioning base station in the transmission path table; If the successful return frame is not received within the predetermined time, the current monitoring data to be transmitted is transmitted to a second transmission path; the first transmission path is the transmission path other than the transmission path closest to each positioning base station in the transmission path table; If the successful return frame of the second transmission path is not received within the predetermined time, each sensor is taken as an addressing sensor again to re-establish a transmission path table.

4. The coal face hydraulic support monitoring data transmission method of claim 1, wherein, The transmission path table is established by each addressing sensor based on all the returned addressing success frames, which comprises the following steps: The returned sensor ID address is acquired by analyzing all the returned addressing success frames by each addressing sensor; The transmission path table is established according to the returned sensor ID address closest to each positioning base station, the returned sensor ID address equidistant from each positioning base station and the addressing sensor, and the returned sensor ID address closest to the addressing sensor.

5. The coal face hydraulic support monitoring data transmission method of claim 1, wherein, If the ID information of the other sensors except the addressing sensor is the same as the ID information of the addressing sensor, the addressing success frame returned by the other sensors is acquired, which comprises the following steps: If the unit digit of the ID address of the other sensors except the addressing sensor is the same as the unit digit of the ID address of the addressing sensor, the addressing success frame returned by the other sensors is acquired.

6. A coal mine working face hydraulic support monitoring data transmission system, characterized in that, The method comprises the following steps: The addressing module is configured to broadcast an addressing frame containing the ID information of the addressing sensor as each sensor is an addressing sensor. The first obtaining addressing module is configured to obtain an addressing success frame returned by each positioning base station after receiving the addressing frame. The second obtaining addressing module is configured to obtain an addressing success frame returned by other sensors if the ID information of the other sensors is the same as the ID information of the addressing sensor. The transmission path construction module is configured to establish a transmission path table based on all the returned addressing success frames by each addressing sensor. The data transmission module is configured to transmit the monitoring data of the hydraulic support based on the transmission path table.

7. A coal face hydraulic support monitoring system, characterised in that, The coal mine working face hydraulic support monitoring data transmission system comprises at least two positioning base stations, a plurality of sensors, and the coal mine working face hydraulic support monitoring data transmission system of claim 6. The two positioning base stations are installed at two ends of the coal mine working face and are configured to receive and upload the monitoring data of the hydraulic support, send initialization information, and reply to the addressing frame. The plurality of sensors are configured to collect and send the monitoring data of the hydraulic support, send the addressing frame, and store the transmission path table. The upper computer platform is configured to receive and analyze the monitoring data of the hydraulic support uploaded by the positioning base station.

8. The coal face hydraulic support monitoring system as claimed in claim 7, wherein, The sensor is a pressure sensor comprising a UWB module, a pressure monitoring module, and a pressure indication module.

9. A terminal device, comprising: The computer readable storage medium comprises a stored computer program, wherein the computer program controls the device where the computer readable storage medium is located to execute the coal mine working face hydraulic support monitoring data transmission method of any one of claims 1 to 5 when the computer program is running.

10. A computer-readable storage medium, characterized in that, The computer readable storage medium comprises a stored computer program, wherein the computer program controls the device where the computer readable storage medium is located to execute the coal mine working face hydraulic support monitoring data transmission method of any one of claims 1 to 5 when the computer program is running.

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