Mining positioning base station based on Wi-SUN communication

Abstract

The utility model discloses a mining positioning base station based on Wi-SUN communication, which comprises a shell, and is characterized in that a movement is arranged in the shell and comprises a processing module, a clock module, a Wi-SUN wireless communication module, a UWB wireless communication module, a power supply module and an Ethernet module; the clock module, the Wi-SUN wireless communication module, the UWB wireless communication module and the Ethernet module are all connected with the processing module, and the power supply module is connected with the processing module, the UWB wireless communication module, the Wi-SUN wireless communication module, the Ethernet module and the clock module; the processing module is used for controlling the UWB wireless communication module to carry out positioning, wireless convergence management and two-way communication are realized through the Wi-SUN wireless communication module, and the Ethernet module acquires positioning data and forwards the positioning data so as to realize data interaction. According to the invention, the deployment cost and the field implementation workload can be reduced, the security and stability of communication are improved, and the expandability is improved.

Description

Technical Field

[0001] This application relates to the fields of wireless communication and precise positioning technology in mines, and in particular to a mine positioning base station based on Wi-SUN communication. Background Technology

[0002] Under the current backdrop of intelligent coal mine development, most mining enterprises have completed the construction of underground precision positioning systems, achieving real-time precise positioning of personnel, vehicles, and equipment underground. Currently, communication between the positioning base station and the system's host computer or other devices in existing precision positioning systems mostly uses wired communication methods, such as RS485 bus, CAN bus, Ethernet, and fiber optics. A smaller number use wireless communication based on LoRa or Zigbee technologies.

[0003] However, existing technologies have at least the following problems:

[0004] Wired communication base stations typically have a communication range of tens to hundreds of meters or even longer, making cabling a significant part of the overall equipment installation process. Underground mining environments are complex and dangerous, especially in coal mining and tunneling faces, where base stations need to be moved frequently to follow the progress of mining and tunneling operations. Using wired cabling presents challenges such as difficulties in wiring and complex assembly / disassembly.

[0005] In scenarios with numerous large mobile devices, such as coal mining faces and tunneling faces, wireless communication positioning base stations based on LoRa or Zigbee technologies face challenges. These challenges arise because of the extensive obstruction from metal equipment and the complex, hazardous, and often non-flat environment of the working face. LoRa communication, with its point-to-point communication method, is susceptible to environmental interference, leading to data loss. Zigbee communication, on the other hand, has a short range, and installing numerous devices in this area results in high costs and extensive equipment maintenance. Summary of the Invention

[0006] To address the shortcomings of existing technologies, this invention provides a mining positioning base station based on Wi-SUN communication, which reduces deployment costs and on-site implementation workload, improves communication security and stability, and enhances scalability.

[0007] The present invention adopts the following technical solution.

[0008] This utility model provides a mining positioning base station based on Wi-SUN communication, including a housing with an internal core. The core includes a processing module, a clock module, a Wi-SUN wireless communication module, a UWB wireless communication module, a power supply module, and an Ethernet module. The clock module, Wi-SUN wireless communication module, UWB wireless communication module, and Ethernet module are all connected to the processing module. The power supply module is connected to the processing module, UWB wireless communication module, Wi-SUN wireless communication module, Ethernet module, and clock module. The processing module controls the UWB wireless communication module for positioning and controls the Wi-SUN wireless communication module to perform wireless aggregation management of lower-level mining positioning base stations based on Wi-SUN communication. It also enables bidirectional communication with upper-level mining positioning base stations based on Wi-SUN communication, transmitting positioning data from each base station through the Wi-SUN network. The Ethernet module acquires and forwards positioning data through the Wi-SUN network to achieve data interaction with the host computer.

[0009] Optional, the Wi-SUN wireless communication module includes:

[0010] The Wi-SUN wireless communication unit is connected to the processing module via a UART interface;

[0011] The Wi-SUN antenna is connected to the Wi-SUN wireless communication unit via the first feed line and is used to amplify the wireless transmission signal of the Wi-SUN wireless communication unit.

[0012] Optionally, the number of UWB wireless communication modules is at least two.

[0013] Optionally, the UWB wireless communication module includes:

[0014] The UWB wireless communication unit is connected to the processing module via an SPI interface;

[0015] The UWB antenna is connected to the UWB wireless communication unit via a feed line and is used to amplify the UWB transmitted signal of the UWB wireless communication module.

[0016] Optional, the power module includes:

[0017] Lithium-ion battery packs are used to provide power.

[0018] The power conversion module, connected to the processing module, UWB wireless communication module, Wi-SUN wireless communication module, clock module, and Ethernet module, is used to convert the voltage of the lithium battery pack and provide the corresponding operating power to the corresponding modules.

[0019] Optionally, the power module may also include:

[0020] The intrinsic safety protection module for lithium batteries connects the lithium battery pack and the power conversion module, and is used to protect the lithium battery pack from overcharge, over-discharge, overcurrent, short circuit and temperature.

[0021] Optionally, the power module may also include:

[0022] The lithium battery power meter module is connected to the processing module via an I2C interface and to the lithium battery intrinsic safety protection module. It is used to calculate the power usage of the lithium battery pack and transmit the power usage information to the processing module via the I2C interface.

[0023] Optionally, the power module may also include:

[0024] The charging management module, connected to the intrinsic safety protection module of the lithium battery, is used to manage the charging of the lithium battery pack.

[0025] Optionally, the movement also includes:

[0026] The storage module, connected to the processing module, is used to store at least one of the following data: positioning data when the processing module performs positioning, wireless communication data obtained by the Wi-SUN wireless communication module during wireless communication, configuration information of the positioning base station, electronic fence alarm information, and historical logs.

[0027] Optionally, the movement also includes:

[0028] The display module, connected to the processing module, is used to display corresponding information according to the display instructions issued by the processing module.

[0029] Compared with the prior art, the beneficial effects of this utility model include at least the following:

[0030] The mining positioning base station provided by this utility model achieves precise positioning by controlling the UWB wireless communication module and wireless communication by the Wi-SUN wireless communication module. Wi-SUN wireless communication features long transmission distance, high communication rate, low communication latency, strong scalability, and low power consumption. Its self-organizing network and self-healing capabilities give the Wi-SUN network high reliability and stability, effectively solving the data transmission problem of positioning base stations in complex underground mining environments.

[0031] This invention solves the problems of difficult wiring and complicated disassembly / reassembly when using wired wiring for positioning base stations in complex and dangerous underground mining scenarios, scenarios requiring frequent relocation of positioning base stations, and scenarios with severe spatial obstruction. It also solves the problems of susceptibility to environmental interference, unstable communication, high deployment costs, and extensive equipment maintenance associated with LoRa and Zigbee wireless communication for positioning base stations. It effectively reduces wiring costs and on-site implementation workload, and has advantages such as simple and convenient installation, low cost, easy maintenance, and secure and stable communication. Device terminals with embedded Wi-SUN protocols can easily achieve data interoperability, and various applications can be expanded based on the Wi-SUN network, contributing to the intelligent development of underground coal mine equipment. Attached Figure Description

[0032] To more clearly illustrate the technical solutions of the embodiments of this disclosure, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein:

[0033] Figure 1 This is a schematic diagram of a mining positioning base station system framework based on Wi-SUN communication provided in an embodiment of this disclosure;

[0034] Figure 2 This is a schematic diagram of the structure of a mining positioning base station based on Wi-SUN communication provided in an embodiment of this disclosure.

[0035] Figure label:

[0036] 1: Mining positioning base station;

[0037] 2: UMB positioning tag card;

[0038] 10: Movement;

[0039] 100: Processing module;

[0040] 200: Clock module;

[0041] 300: Wi-SUN wireless communication module; 310: Wi-SUN wireless communication unit; 320: Wi-SUN antenna;

[0042] 400: Power supply module; 410: Lithium battery fuel gauge module; 420: Power conversion module; 430: Lithium battery intrinsic safety protection module; 440: Lithium battery pack; 450: Charging management module;

[0043] 500: UWB wireless communication module; 510: First UWB wireless communication unit; 520: First UWB antenna; 530: Second UWB wireless communication unit; 540: Second UWB antenna;

[0044] 600: Storage module;

[0045] 700: Display module;

[0046] 800: Ethernet module. Detailed Implementation

[0047] To make the objectives, technical solutions, and advantages of this disclosure clearer, the technical solutions of this disclosure will be clearly and completely described below with reference to the accompanying drawings of the embodiments. The embodiments described in this application are merely some embodiments of this disclosure, and not all embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this disclosure.

[0048] The terms "first," "second," etc., used in the embodiments of this disclosure are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this disclosure described herein can be used. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion.

[0049] The terms "set," "connect," and "fix" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection or a connection through an intermediate medium, or it can be an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this disclosure according to the specific circumstances. Unless otherwise stated, the term "multiple" means two or more.

[0050] It should be noted that, unless otherwise specified, the embodiments and features described in the present disclosure can be combined with each other.

[0051] Figure 1This is a schematic diagram of a mining positioning system framework provided in an embodiment of the present disclosure. The mining positioning system includes a mining positioning base station 1 and UWB (Ultra-Wideband) positioning identification cards 2. The mining positioning base stations 1 communicate with each other through a Wi-SUN (Wireless Smart Utility Network) network. The mining positioning base stations 1 communicate with multiple UWB positioning identification cards 2 in real time, calculate the distance and direction of the UWB positioning identification cards 2 according to the positioning algorithm, and exchange the calculation results with a host computer or other devices through Wi-SUN networking and multi-hop communication.

[0052] Combination Figure 2 As shown, this utility model provides a mining positioning base station 1 based on Wi-SUN communication, including a housing, inside which is a core module 10. The core module 10 includes: a processing module 100, a clock module 200, a Wi-SUN wireless communication module 300, a UWB wireless communication module 500, a power supply module 400, and an Ethernet module 800. The clock module 200, Wi-SUN wireless communication module 300, UWB wireless communication module 500, and Ethernet module 800 are all connected to the processing module 100, and the power supply module 400 is connected to both the processing module 100 and the UWB wireless communication module 500. The system is connected to the Wi-SUN wireless communication module 300, the Ethernet module 800, and the clock module 200. The processing module 100 controls the UWB wireless communication module 500 for positioning and controls the Wi-SUN wireless communication module 300 to perform wireless aggregation management of the lower-level mining positioning base stations based on Wi-SUN communication. It also enables bidirectional communication with the upper-level mining positioning base stations based on Wi-SUN communication, transmitting the positioning data of each mining positioning base station through the Wi-SUN network. The Ethernet module 800 obtains and forwards the positioning data through the Wi-SUN network to achieve data interaction with the host computer.

[0053] Specifically, the processing module 100 can be an ARM core processing module, and those skilled in the art can select the ARM core processing module according to the actual application requirements.

[0054] In this embodiment, the processing module 100 controls the Wi-SUN wireless communication module 300 to perform wireless aggregation management of lower-level Wi-SUN node devices through the Wi-SUN network, and to conduct bidirectional communication with upper-level Wi-SUN node devices, transmitting the positioning data results through the Wi-SUN network; used for logical judgment, data parsing and information interaction for accurate positioning of base stations.

[0055] The mining positioning base station 1 provided in this embodiment uses a UWB wireless communication module 500 for positioning and a Wi-SUN wireless communication module 300 for wireless communication. Compared to related technologies that use wired communication such as RS485 bus, CAN bus, Ethernet, and fiber optics, this disclosure uses the UWB wireless communication module 500 and the Wi-SUN wireless communication module 300 for wireless communication, effectively reducing wiring costs and on-site implementation workload. Installation is simple and convenient, and maintenance is easy. Compared to related technologies based on LoRa or Zigbee wireless communication positioning base stations, this disclosure uses the sub-G frequency band with the Wi-SUN wireless communication module 300, enhancing penetration capability, increasing communication distance, improving communication speed, enhancing communication security, and reducing data loss rate. Because of the increased communication distance, the amount of equipment installed and used is reduced, thereby lowering deployment and maintenance costs.

[0056] In some embodiments, a wireless mesh network can be built using the Wi-SUN protocol. The Wi-SUN protocol allows each node to perform long-distance hop communication while maintaining a high transmission rate, effectively solving the data transmission problem of positioning base stations in complex underground mining environments and improving the security and stability of communication. In addition, the Wi-SUN network has self-organizing and self-healing functions, further improving the scalability of base station applications.

[0057] Optionally, the Wi-SUN wireless communication module 300 includes:

[0058] Wi-SUN wireless communication unit 310 is connected to processing module 100 via UART interface;

[0059] The Wi-SUN antenna 320 is connected to the Wi-SUN wireless communication unit via a first feed line and is used to amplify the wireless transmission signal of the Wi-SUN wireless communication unit 310.

[0060] In this embodiment, the Wi-SUN antenna 320 amplifies the wireless transmission signal, enabling long-distance wireless communication and reducing infrastructure investment. Furthermore, the Wi-SUN network employs a mesh structure, allowing for automatic construction and optimization of connection paths. When a positioning base station fails, data can be routed via alternative paths, ensuring communication continuity. Moreover, the Wi-SUN protocol enables interoperability between devices from different manufacturers, reducing the difficulty and cost of technology integration.

[0061] Optionally, there are at least two UWB wireless communication modules 500.

[0062] In this embodiment, the precise positioning in the mine uses the TOF algorithm, which requires at least two UWB wireless communication modules 500 to determine the direction and distance. By comparing the distance difference between the two UWB wireless communication modules 500 and the target positioning card, it is determined that the target positioning card is located in the front or back direction of the positioning base station.

[0063] Optionally, the UWB wireless communication module 500 includes:

[0064] The UWB wireless communication unit is connected to the processing module 100 via the SPI interface;

[0065] The UWB antenna is connected to the UWB wireless communication unit via a feed line and is used to amplify the UWB transmitted signal of the UWB wireless communication unit.

[0066] In this embodiment, two UWB wireless communication modules 500 are used. The first UWB wireless communication module includes: a first UWB wireless communication unit 510, connected to the processing module 100 via an SPI interface; and a first UWB antenna 520, connected to the first UWB wireless communication unit 510 via a first feed line, used to amplify the UWB transmission signal of the first UWB wireless communication unit 510. A second UWB wireless communication unit 530 is connected to the processing module 100 via an SPI interface. The second UWB wireless communication module includes: a second UWB antenna 540, connected to the second UWB wireless communication unit 530 via a second feed line, used to amplify the UWB transmission signal of the second UWB wireless communication unit 530. The processing module 100 controls the first UWB wireless communication unit 510 and the second UWB wireless communication unit 530 to perform real-time UWB communication with the UWB positioning tag 2 according to a positioning algorithm, and calculates the distance and direction of each UWB positioning tag 2.

[0067] Optional, the power module 400 includes:

[0068] Lithium battery pack 440 is used to provide power;

[0069] The power conversion module 420 is connected to the processing module 100, the UWB wireless communication module 500, the Wi-SUN wireless communication module 300, the clock module 200, and the Ethernet module 800. It is used to convert the voltage of the lithium battery pack and provide the corresponding working power to the corresponding modules.

[0070] In this embodiment, the power conversion module 420 provides each module with the required operating power at various operating levels, improving the overall system power efficiency. Furthermore, the output power can be dynamically adjusted according to load changes, reducing energy waste. Moreover, when a new module needs to be added to the system, it can be easily replaced as long as the power conversion module 420 can provide the required voltage, improving scalability.

[0071] Optionally, the power module 400 also includes:

[0072] The lithium battery intrinsic safety protection module 430 connects the lithium battery pack 440 and the power conversion module 420, and is used to protect the lithium battery pack 440 from overcharge, over-discharge, overcurrent, short circuit and temperature.

[0073] In this embodiment, the lithium battery intrinsically safe protection module 430 provides various protections for the lithium battery, improving its safety, reliability, and lifespan. It also effectively prevents battery damage and system failures, thereby reducing the frequency of repairs and replacements due to battery issues and lowering system maintenance costs. The lithium battery intrinsically safe protection module 430, through its intrinsically safe design, ensures system safety even in fault conditions, preventing potential hazards. This makes it particularly suitable for mining applications, improving communication security in complex mining environments.

[0074] Optionally, the power module 400 also includes:

[0075] The lithium battery power meter module 410 is connected to the processing module 100 via an I2C interface and is also connected to the lithium battery intrinsic safety protection module 430. It is used to calculate the power usage of the lithium battery pack 440 and transmit the power usage information to the processing module 100 via the I2C interface.

[0076] Specifically, calculating the power usage of the lithium battery pack 440 includes calculating information such as the lithium battery voltage, remaining power, and remaining operating time, and then sending the calculation results to the ARM core processing module.

[0077] In this embodiment, the lithium battery fuel gauge module 410 calculates the power usage of the lithium battery pack 440 and transmits this information to the processing module 100. This allows for real-time tracking of the battery status, preventing sudden device shutdown due to insufficient power. In some embodiments, when the battery level falls below a set threshold, an alarm signal is issued to remind the user to charge or replace the battery promptly. Precise management of power usage prevents over-discharge of the battery, thus helping to extend its lifespan. Furthermore, the connection between the lithium battery fuel gauge module 410 and the processing module 100 reduces the complexity of external circuitry and improves system integration.

[0078] Optionally, the power module 400 also includes:

[0079] The charging management module 450 is connected to the lithium battery intrinsic safety protection module 430 and is used to manage the charging of the lithium battery pack 440.

[0080] In this embodiment, the charging management module 450 manages the charging of the lithium battery pack 440, which can protect the lithium battery pack 440, extend the battery life, and indicate the charging status.

[0081] Optionally, movement 10 also includes:

[0082] The storage module 600, connected to the processing module 100, is used to store at least one of the following data: positioning data when the processing module 100 performs positioning, wireless communication data obtained by the Wi-SUN wireless communication module 300 during wireless communication, configuration information of the positioning base station, electronic fence alarm information, and historical logs.

[0083] The storage module 600 can be FLASH storage and is connected to the processing module 100 via an SPI interface.

[0084] In this embodiment, FLASH storage is used, which can retain data information even when power is off, improving the reliability and stability of the system. Furthermore, FLASH memory has a long lifespan, reducing the risk of data loss due to memory failure. Moreover, FLASH memory supports electrically erasable and in-circuit programming, allowing for dynamic updates of corresponding data during operation without replacing the storage chip, improving system flexibility and scalability. Furthermore, some FLASH memories support error correction codes, automatically detecting and correcting errors in the stored data, further improving data accuracy. Additionally, the configuration information of the positioning base station can be stored in a protected area within the FLASH memory, ensuring that these critical parameters are not altered by unauthorized access or manipulation, thus enhancing data security.

[0085] Optionally, movement 10 also includes:

[0086] The display module 700 is connected to the processing module 100 and is used to display corresponding information according to the display instructions issued by the processing module 100.

[0087] The display module 700 can be an LCD display, connected to the processing module 100, and is used to display information such as the UWB positioning tag number, UWB positioning tag voltage, and UWB positioning tag location, as well as the configuration parameters and operating status of the positioning base station, according to the display instructions issued by the processing module 100.

[0088] In this embodiment, the display module 700 displays the corresponding information in real time, allowing users to intuitively obtain relevant data and understand the on-site situation in a timely manner without having to use complex equipment or software for querying, thus improving the convenience and efficiency of operation.

[0089] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this disclosure and not to limit them. Although this disclosure has been described in detail with reference to the above embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the specific implementation methods of this disclosure. Any modifications or equivalent substitutions that do not depart from the spirit and scope of this utility model should be covered within the protection scope of the claims of this utility model.

Claims

1. A mining positioning base station based on Wi-SUN communication, comprising a housing, wherein an organic core is disposed inside the housing, characterized in that, The core module includes: a processing module, a clock module, a Wi-SUN wireless communication module, a UWB wireless communication module, a power supply module, and an Ethernet module. The clock module, Wi-SUN wireless communication module, UWB wireless communication module, and Ethernet module are all connected to the processing module. The power supply module is connected to the processing module, UWB wireless communication module, Wi-SUN wireless communication module, Ethernet module, and clock module. The processing module controls the UWB wireless communication module to perform positioning and controls the Wi-SUN wireless communication module to perform wireless aggregation management of lower-level mining positioning base stations based on Wi-SUN communication. It also performs bidirectional communication with upper-level mining positioning base stations based on Wi-SUN communication, transmitting the positioning data of each mining positioning base station through the Wi-SUN network. The Ethernet module obtains and forwards the positioning data through the Wi-SUN network.

2. The mine positioning base station based on Wi-SUN communication according to claim 1, characterized in that, Wi-SUN wireless communication modules include: The Wi-SUN wireless communication unit is connected to the processing module via a UART interface; The Wi-SUN antenna is connected to the Wi-SUN wireless communication unit via the first feed line and is used to amplify the wireless transmission signal of the Wi-SUN wireless communication unit.

3. The mine positioning base station based on Wi-SUN communication according to claim 1, characterized in that, There must be at least two UWB wireless communication modules.

4. The mine positioning base station based on Wi-SUN communication according to claim 1, characterized in that, The UWB wireless communication module includes: The UWB wireless communication unit is connected to the processing module via an SPI interface; The UWB antenna is connected to the UWB wireless communication unit via a feed line and is used to amplify the UWB transmitted signal of the UWB wireless communication module.

5. The mine positioning base station based on Wi-SUN communication according to claim 1, characterized in that, The power module includes: Lithium-ion battery packs are used to provide power. The power conversion module, connected to the processing module, UWB wireless communication module, Wi-SUN wireless communication module, clock module, and Ethernet module, is used to convert the voltage of the lithium battery pack and provide the corresponding operating power to the corresponding modules.

6. The mine positioning base station based on Wi-SUN communication according to claim 5, characterized in that, The power module also includes: The intrinsic safety protection module for lithium batteries connects the lithium battery pack and the power conversion module, and is used to protect the lithium battery pack from overcharge, over-discharge, overcurrent, short circuit and temperature.

7. The mining positioning base station based on Wi-SUN communication according to claim 6, characterized in that, The power module also includes: The lithium battery power meter module is connected to the processing module via an I2C interface and to the lithium battery intrinsic safety protection module. It is used to calculate the power usage of the lithium battery pack and transmit the power usage information to the processing module via the I2C interface.

8. The mine positioning base station based on Wi-SUN communication according to claim 6, characterized in that, The power module also includes: The charging management module, connected to the intrinsic safety protection module of the lithium battery, is used to manage the charging of the lithium battery pack.

9. The mine positioning base station based on Wi-SUN communication according to claim 1, characterized in that, The movement also includes: The storage module, connected to the processing module, is used to store at least one of the following data: positioning data when the processing module performs positioning, wireless communication data obtained by the Wi-SUN wireless communication module during wireless communication, configuration information of the positioning base station, electronic fence alarm information, and historical logs.

10. The mine positioning base station based on Wi-SUN communication according to claim 1, characterized in that, The movement also includes: The display module, connected to the processing module, is used to display corresponding information according to the display instructions issued by the processing module.

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