Mining HPLC (High Performance Liquid Chromatography) wireless hybrid network communication method and system

Abstract

The invention relates to a mining HPLC (High Performance Liquid Chromatography) wireless hybrid network communication method and system, and the method comprises the steps: converting an Ethernet signal into a power line carrier signal, and loading the power line carrier signal to a power line of an underground roadway; receiving, amplifying and outputting the power line carrier signal through a plurality of carrier repeaters arranged on the power line; and converting the power line carrier signal into a wireless signal by using an HPLC wireless gateway, and accessing the wireless signal to a wireless terminal node in a roadway. According to the invention, an original underground low-voltage 127V illumination power line is utilized, and remote transmission of signals is realized by loading HPLC signals. According to the method, a network cable or an optical fiber does not need to be independently arranged, so that the construction difficulty and the deployment cost are greatly reduced, and wireless signal coverage is ensured in an underground illuminated place. The problems of difficult underground wireless signal coverage, large construction difficulty, high deployment cost and the like are solved, the stability and reliability of communication are improved, and a powerful guarantee is provided for safe production and efficient management of a mine.

Description

Technical Field

[0001] The present invention relates to the field of mine communication technology, and in particular to a mine HPLC wireless hybrid network communication method and system. Background Art

[0002] In the mine operation environment, it is crucial to ensure stable communication between various equipment in the tunnel and the control center. However, due to the special structure of the mine tunnel, such as narrowness, curvature, and reflection of wireless signals by walls, it is difficult to achieve full coverage of low-rate wireless signals (such as wireless sensor signals with a communication rate of ≤460800bps, voice intercom signals, equipment control signals, etc.). This not only affects the safety and efficiency of mine operations, but may also lead to catastrophic consequences, such as failure to detect equipment failures in a timely manner and failure to warn of environmental anomalies.

[0003] In order to solve the problem of signal coverage in mine tunnels, the existing technology mainly adopts the solution of Ethernet + wireless WiFi router / Sub-1G gateway. Specifically, it is to deploy network cables or optical fibers in the main tunnels to achieve Ethernet and 4G / 5G signal coverage. Then, by leading the network cables / optical fibers from the ring network switch to the branch tunnels, the signal coverage is extended. At the same time, wireless WiFi routers or Sub-1G gateways are used to provide wireless signal coverage to meet the communication needs of equipment and control systems in the tunnels.

[0004] Although the existing technology has solved the problem of signal coverage in mine tunnels to a certain extent, there are still many defects: 1. Difficult wiring: Due to the narrow underground tunnels and crisscrossing pipelines, new wiring becomes very difficult. Ethernet can usually only cover the main tunnels, while a large number of edge tunnels cannot be effectively connected to Ethernet due to the long distance and difficult wiring. 2. High coverage cost: For tunnels far away from the Ethernet switch, if a ring network needs to be connected, it often takes a huge amount of money and a long construction period to set up Ethernet. This greatly reduces the economic efficiency of solving the signal coverage problem. 3. Severe attenuation of wireless signals: In underground tunnels, wireless communication devices such as 4G, 5G and Sub-1G are severely reflected by the walls of the tunnels, resulting in the superposition of signals with different phases in space, which exponentially weakens the communication distance of wireless devices. In order to make up for this defect, a large number of repeaters and amplifiers have to be added, which further increases the coverage cost. 4. High system complexity and maintenance difficulty: Due to the need to deploy a large number of network cables, optical fibers, wireless devices and repeaters / amplifiers, the complexity and maintenance difficulty of the entire communication system are greatly increased. Summary of the invention

[0005] In view of this, it is necessary to provide a mine-used HPLC wireless hybrid network communication method and system to solve the above-mentioned defects of the prior art.

[0006] In order to solve the above problems, in a first aspect, an embodiment of the present invention provides a mine-used HPLC wireless hybrid network communication method, comprising: The Ethernet signal is converted into a power line carrier signal through an Ethernet signal to power line carrier signal device, and loaded onto the power line of the underground tunnel; The power line carrier signal is received, amplified and outputted by multiple carrier repeaters arranged on the power line, so that the power line carrier signal is extended to each lane along the power line; wherein the carrier repeater is integrated on the HPLC wireless gateway, and multiple HPLC wireless gateways are arranged on the power line at intervals; The power line carrier signal is converted into a wireless signal by using an HPLC wireless gateway and connected to a wireless terminal node in the lane.

[0007] Preferably, the mine-used HPLC wireless hybrid network communication method further comprises: The data interface of the wireless terminal node is designed as a universal wired serial port to connect various terminal devices.

[0008] Preferably, the Ethernet signal is converted into a power line carrier signal by an Ethernet signal to power line carrier signal device, and loaded onto the power line of the underground tunnel, specifically including: The Ethernet signal to power line carrier signal device receives Ethernet data from the ring network switch through Ethernet or fiber optic transceiver and parses the data message; Sending the data message to the power line carrier module, which converts the data message into a power line carrier signal; The power line carrier signal is loaded onto the power line of the underground tunnel through a coupling coil to complete data downlink.

[0009] Preferably, the Ethernet signal to power line carrier signal device is also used for: The power line carrier signal on the power line is coupled to the carrier transceiver module through the coupling coil for demodulation, and the corresponding data message is output; The data message is sent to the Ethernet module through UART, and the Ethernet module converts the data message into TCP / IP format and sends it to the network cable and optical fiber to complete the data uplink.

[0010] Preferably, the wireless terminal node communicates with nearby HPLC wireless gateways via wireless communication; each HPLC wireless gateway can cover multiple sensor nodes to form a star connection mode.

[0011] Preferably, the HPLC wireless gateway exchanges data with the wireless terminal nodes through multiple built-in communication channels, and the HPLC wireless gateway monitors the signal of each communication channel in a cyclic scanning manner; When the RSSI of any communication channel is detected to increase, the HPLC wireless gateway stops and receives the data of this channel, and then continues to scan other channels after completion; The backend MCU verifies and analyzes the received data and responds to the wireless terminal node based on the channel information in the data packet.

[0012] Preferably, the HPLC wireless gateway and the wireless terminal node perform data exchange via a mine star ad hoc network wireless communication protocol; RSSI and SNR information are introduced into the mine star ad hoc network wireless communication protocol; after obtaining RSSI and SNR information, the wireless terminal node selects the communication channel preferentially according to the received signal strength; wherein RSSI is the received signal strength indicator, and SNR is the signal-to-noise ratio; According to the RSSI and SNR information of the optimal communication channel, the wireless terminal node adjusts the gain of the adjustable gain amplifier LNA of its own wireless receiver so that the RSS value received by the adjustable gain amplifier LNA is maintained at the target receiving value; wherein the RSS value is the received signal strength value; By adjusting the gain of the LNA, the signal power of useless signals entering the wireless receiver is weakened, thereby improving the SNR value of the demodulator and reducing the communication false alarm rate of the wireless terminal node.

[0013] In a second aspect, an embodiment of the present invention provides a mine-used HPLC wireless hybrid network communication system, comprising: The Ethernet signal to power line carrier signal device is connected to the Ethernet and is used to convert the Ethernet signal into a power line carrier signal and load it onto the power line in the underground tunnel.

[0014] The HPLC wireless gateway is communicatively connected with the Ethernet signal to power line carrier signal device. The HPLC wireless gateways are arranged at intervals on the power line. Each HPLC wireless gateway is integrated with a carrier repeater, which is used to receive, amplify and output the power line carrier signal. The HPLC wireless gateway is used to convert the power line carrier signal into a wireless signal and access the wireless terminal node in the lane. The wireless terminal node is wirelessly connected to the HPLC wireless gateway, and the data interface of the wireless terminal node is designed as a universal wired serial port to connect various terminal devices.

[0015] In a third aspect, the present invention further provides an electronic device, including a memory and a processor, wherein: The memory is used to store programs; The processor is coupled to the memory and is used to execute the program stored in the memory to implement the steps in the mining HPLC wireless hybrid network communication method as described in the embodiment of the first aspect of the present invention.

[0016] In a fourth aspect, the present invention further provides a computer-readable storage medium for storing computer-readable programs or instructions, which, when executed by a processor, can implement the steps in the mining HPLC wireless hybrid network communication method as described in the embodiment of the first aspect of the present invention.

[0017] Compared with the prior art, the mine-used HPLC wireless hybrid network communication method and system provided by the present invention have the following beneficial effects: 1) The present invention loads the HPLC carrier signal onto the existing power line underground, and uses the existing power line in the tunnel to cover the tunnel signal, which not only improves the signal coverage range and communication stability, but also greatly reduces the construction difficulty and deployment cost.

[0018] 2) Aiming at the narrow environment of mines, the present invention has developed a mine star ad hoc wireless communication protocol. This protocol effectively solves the networking complexity and communication instability problems between HPLC and wireless terminal nodes, realizes the rapid network access (<1S) and high communication success rate (>95%) of wireless terminal nodes, and significantly improves the efficiency and reliability of mine communications.

[0019] 3) Through the HPLC wireless hybrid network communication system provided by the present invention, network signal deployment and wireless signal coverage can be quickly carried out in the underground edge tunnels without the need to separately lay network cables or optical fibers, which greatly saves economic costs. At the same time, it also reduces the life safety risks faced by miners due to the long-term installation of communication lines.

[0020] 4) The present invention achieves comprehensive coverage of signals from all underground tunnels, enabling mine maintenance personnel to promptly discover and handle faulty equipment and potential dangerous situations underground, thereby effectively reducing the probability of mine accidents and improving mine safety and production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A flow chart of the wireless hybrid network communication method for HPLC used in mines provided by the present invention; Figure 2 A schematic diagram of the structure of the mine-used HPLC wireless hybrid network communication system provided by the present invention; Figure 3 A schematic diagram of a star connection between a HPLC wireless gateway and wireless terminal nodes provided in an embodiment of the present invention; Figure 4 The principle diagram of the mine star ad hoc network wireless communication protocol provided by the present invention; Figure 5 This is a structural block diagram of the electronic device provided by the present invention. DETAILED DESCRIPTION

[0022] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings, wherein the accompanying drawings constitute a part of this application and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not used to limit the scope of the present invention.

[0023] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0024] In the existing mine communication system, signal transmission and coverage are mainly based on traditional wired networks (such as network cables and optical fibers). However, this method has significant defects in the complex underground tunnel environment. Due to the strong reflection of wireless signals by the walls in the tunnel, the transmission distance of wireless signals underground is severely limited, resulting in the inability to achieve low-cost long-distance wireless signal coverage. This not only increases the construction difficulty and deployment cost, but also makes it impossible for some environmental sensors or control devices in the tunnel to quickly connect to the ring network, resulting in serious consequences such as loss of equipment connection and inability to monitor the environment, which may lead to catastrophic events.

[0025] In view of this, the present invention provides a mine-used HPLC wireless hybrid network communication method, which utilizes the original low-voltage 127V lighting power line in the mine and realizes the remote transmission of the signal by loading the HPLC (high-speed power line carrier) signal. This method does not require the installation of a separate network cable or optical fiber, thereby greatly reducing the construction difficulty and deployment cost, and ensuring that there is wireless signal coverage wherever there is lighting in the mine. It solves the problems of difficult underground wireless signal coverage, high construction difficulty, and high deployment cost, and also improves the stability and reliability of communication, providing a strong guarantee for the safe production and efficient management of the mine. The following will be explained and introduced through multiple embodiments.

[0026] Figure 1 The present invention provides a flow chart of the wireless hybrid network communication method for HPLC used in mines. Figure 2 This is a schematic diagram of the structure of the mine-used HPLC wireless hybrid network communication system provided by the present invention. Figure 2 , the mine HPLC wireless hybrid network communication system includes: The Ethernet signal to power line carrier signal device is connected to the Ethernet and is used to convert the Ethernet signal into a power line carrier signal and load it onto the power line in the underground tunnel. Figure 2 Device 1 refers to the Ethernet signal to power line carrier signal device, device 2 refers to the carrier repeater integrated in the HPLC wireless gateway, and device 3 refers to the wireless terminal node.

[0027] The HPLC wireless gateway is connected to the Ethernet signal to power line carrier signal device. The HPLC wireless gateway is arranged at intervals on the power line. Each HPLC wireless gateway is integrated with a carrier repeater, which is used to receive, amplify and output the power line carrier signal. The HPLC wireless gateway is used to convert the power line carrier signal into a wireless signal and access the wireless terminal node in the lane. The HPLC wireless gateway is a wireless gateway device that integrates HPLC (High-speed Power Line Communications) technology.

[0028] The wireless terminal node is wirelessly connected to the HPLC wireless gateway, and the data interface of the wireless terminal node is designed as a universal wired serial port to connect various terminal devices, including sensors and switch devices.

[0029] like Figure 1 As shown, the mine HPLC wireless hybrid network communication method at least includes the following steps: Step S1, converting the Ethernet signal into a power line carrier signal through an Ethernet signal to power line carrier signal device, and loading it onto the power line of the underground tunnel.

[0030] Specifically, power line carrier technology refers to a special communication method that uses power lines as information transmission media for voice or data transmission. In the Ethernet signal to power line carrier signal stage, it includes two parts: the conversion of Ethernet signal to power signal (data downlink) and the conversion of power signal to Ethernet signal (data uplink).

[0031] In step S1, the conversion of Ethernet signal to power signal (data downlink) is realized. First, the Ethernet signal to power line carrier signal device receives Ethernet data from the ring network switch through Ethernet or optical fiber transceiver, and parses the data message; then, the data message is sent to the power line carrier module, and the power line carrier module converts the data message into an OFDM (Orthogonal Frequency Division Multiplexing) modulated signal. In this embodiment, the OFDM modulated signal is used as the power line carrier signal. Finally, the power line carrier signal is loaded onto the low-voltage 127V lighting power line of the underground tunnel through the coupling coil to complete the data downlink. In this way, the data can be transmitted over long distances through the existing lighting power lines in the mine without the need for additional network cables or optical fibers.

[0032] Furthermore, the Ethernet signal to power line carrier signal device can also realize the conversion of power signal to Ethernet signal (data uplink). Specifically, first, the power line carrier signal on the power line is coupled to the carrier transceiver module through the coupling coil for demodulation, and the corresponding data message is output; then, the data message is sent to the Ethernet module through the UART, in which the data message is encapsulated in the TCP / IP protocol format and sent to the ring network switch or other network equipment through the network cable and optical fiber. In this way, the data completes the uplink transmission process from the power line to the Ethernet.

[0033] In this embodiment, the Ethernet signal to power line carrier signal device may be composed of the following components: Ethernet / fiber optic transceiver: used to receive Ethernet data from the ring network switch.

[0034] The data analysis module is used to analyze the Ethernet data received from the Ethernet / fiber optic transceiver and extract the data message.

[0035] The power line carrier module is used to convert the parsed data message into an OFDM modulated signal. OFDM is a modulation technology that can spread data across multiple subcarriers for transmission, thereby improving the reliability and speed of communication.

[0036] The coupling coil is used to load the OFDM modulated signal onto the 127V power line to achieve data transmission from the device to the power line (data downlink). At the same time, it can also couple the OFDM modulated signal from the power line for the device to receive and process (data uplink).

[0037] The carrier transceiver module is used to receive the OFDM modulated signal from the coupling coil, and demodulate it to restore the original data message.

[0038] The UART interface is used to send the demodulated data message to the Ethernet module for subsequent TCP / IP conversion and transmission.

[0039] The Ethernet module is used to convert Ethernet data packets into TCP / IP format and send them to other devices in the network through network cables and optical fibers to complete uplink data transmission.

[0040] It can be seen that the structure of the Ethernet signal to power line carrier signal device is a complex that integrates multiple functional modules such as Ethernet / optical fiber transceiver, OFDM modulation / demodulation, coupled transmission, UART and Ethernet communication, etc., which realizes the effective conversion and transmission between Ethernet signals and power line carrier signals.

[0041] Step S2, receiving, amplifying and outputting the power line carrier signal by setting up multiple carrier repeaters on the power line, so that the power line carrier signal extends to each lane along the power line; wherein the carrier repeater is integrated on the HPLC wireless gateway, and multiple HPLC wireless gateways are set at intervals on the power line.

[0042] It is understandable that when the power line carrier signal is transmitted on the power line, it will be affected by factors such as noise, signal attenuation, multipath effect, electromagnetic interference, load changes, equipment performance, etc., causing the signal to attenuate rapidly during transmission, greatly reducing the communication distance.

[0043] In view of the above problems faced by the transmission of carrier signals on power lines, in order to compensate for the loss in the signal transmission process and allow data to be transmitted farther, the embodiment of the present invention sets a carrier repeater on the power line to receive and amplify the carrier signal on the power line, and the carrier repeater is integrated on the HPLC wireless gateway. In actual operation, HPLC wireless gateways and carrier repeaters can be added at intervals of 1 km on the power line.

[0044] Specifically, the carrier repeater first receives the carrier signal from the upstream. This signal may have been transmitted over a certain distance, so there will be a certain amount of attenuation and interference. Then, after receiving the signal, the carrier repeater will amplify the signal. By increasing the amplitude of the signal, the attenuation during the transmission process can be compensated, allowing the signal to continue to be transmitted downstream. Finally, the amplified signal is output to the power line and continues to be transmitted downstream. In this way, through the relay transmission of multiple carrier repeaters, the carrier signal can be extended to each lane to achieve wide coverage of the signal.

[0045] In this embodiment, the power line carrier signal is received, amplified and outputted through a carrier repeater, so that the attenuated carrier signal on the power line is amplified again to its original state. This cycle can be repeated to extend the carrier signal to each lane along the low-voltage power line, thereby achieving signal coverage.

[0046] Step S3, using the HPLC wireless gateway to convert the power line carrier signal into a wireless signal and access the wireless terminal node in the lane.

[0047] In this embodiment, the wireless terminal node refers to various devices in the tunnels of the mine that require wireless communication functions, such as environmental sensors, control devices, switch devices, etc. These devices communicate with the HPLC wireless gateway wirelessly, thereby accessing the entire mine-used HPLC wireless hybrid network communication system. Specifically, the wireless terminal nodes can play the role of data acquisition, transmission and reception in the system. They can sense various environmental parameters (such as temperature, humidity, gas concentration, etc.) or the status of the control equipment in the tunnel, and send this information to the HPLC wireless gateway via wireless signals. At the same time, the wireless terminal nodes can also receive control instructions from the gateway and perform corresponding operations on the equipment.

[0048] Figure 3 The star connection diagram of the HPLC wireless gateway and the wireless terminal node provided by the embodiment of the present invention. Figure 3 , the wireless terminal node communicates with the nearby HPLC wireless gateway through wireless communication; each HPLC wireless gateway can cover multiple sensor nodes to form a star connection mode, referring to Figure 3 , HPLC wireless gateway and wireless terminal node (i.e. Figure 3 The sensor nodes in the star network form a star-shaped mining tunnel network without a central node. Each HPLC wireless gateway can cover multiple sensor nodes to ensure uniform coverage of signals in the underground tunnel. There is no central node in the star network structure, and the failure of any node will not affect the operation of the entire network, which improves the safety and reliability of the system.

[0049] It is understandable that due to the complexity of underground tunnels, in order to ensure that the wireless signal can evenly cover every corner of the tunnel and allow mobile devices to seamlessly switch between various wireless access points without affecting communication, the embodiment of the present invention has developed a mine star ad hoc network wireless communication protocol.

[0050] The schematic diagram of the mine star ad hoc network wireless communication protocol is as follows: Figure 4 As shown. Based on the characteristics of narrow and curved underground tunnels and high reflection of wireless radio frequency signals, the protocol optimizes the network access method of wireless data access points and the communication performance in mobile state. Through the mine star ad hoc network wireless communication protocol, the HPLC wireless gateway and wireless data access point in the tunnel can form a star-shaped mine tunnel dedicated network without a central node, realizing efficient and stable wireless communication.

[0051] In a preferred embodiment of the present invention, referring to Figure 3 and Figure 4 The HPLC wireless gateway exchanges data with the wireless terminal nodes through multiple built-in communication channels. In the actual operation process, refer to Figure 3 , the HPLC wireless gateway has three built-in communication channels according to the communication conditions of the lane, which means that the communication between the gateway and the terminal node can be carried out on these three channels. The HPLC wireless gateway uses a cyclic scanning method to monitor the signal of each communication channel. When the RSSI of any communication channel is detected to increase, the HPLC wireless gateway stops and receives the data of this channel, and continues to scan other channels after completion. The received data packet will be sent to the back-end MCU (microcontroller) for legality verification and parsing. If the data packet is legal, the MCU will process it according to the information in the data packet. When it is necessary to return ACK (response) to the wireless terminal node, the gateway will switch the wireless transmitter to the communication channel of the wireless terminal node according to the channel number in the data packet for response. In this way, all wireless terminal nodes in the lane can achieve the purpose of connection at any time without setting up a communication path. This greatly improves the flexibility and convenience of the system.

[0052] It is understandable that due to the narrow and curved underground tunnels, it is necessary to install enough HPLC wireless gateways at the top of the tunnels (e.g., at intervals of 100 meters). Although this dense deployment improves the quality of wireless signals in the tunnels, it may also cause the same wireless terminal node to receive signals from multiple gateways. That is, when wireless terminal nodes in the tunnels are densely deployed, it will cause the wireless signals in the air to interfere with communications.

[0053] To solve this problem, in a preferred embodiment of the present invention, RSSI (Received Signal Strength Indicator) and SNR (Signal-to-Noise Ratio) information are introduced into the wireless communication protocol of the mining star ad hoc network as a reference for the wireless terminal node to adjust the adjustable gain amplifier (LNA) of the RF front end in real time.

[0054] Specifically, refer to Figure 4 After obtaining the RSSI and SNR information, the wireless terminal node selects the communication channel according to the received signal strength; according to the RSSI and SNR information of the optimal communication channel, the wireless terminal node adjusts the gain of the adjustable gain amplifier LNA of its own wireless receiver to keep the RSS (Received Signal Strength) value received by the adjustable gain amplifier LNA at the target receiving value; by adjusting the gain of the LNA, the signal power of useless signals entering the wireless receiver is weakened, thereby improving the SNR value of the demodulator, thereby reducing the communication false alarm rate of the wireless terminal node.

[0055] Step S4, designing the data interface of the wireless terminal node as a universal wired serial port to connect various terminal devices.

[0056] In this embodiment, the data interface of the wireless terminal node is designed as a universal wired serial port, and the universal wired serial port includes an RS232 interface and an RS485 interface. In this embodiment, by designing the external data interface of the wireless terminal node as a universal wired serial port, various types of terminal devices can be easily connected. These serial port standards are widely used in the fields of industrial automation and sensors, and have good compatibility and scalability. In a complex environment such as an underground tunnel, wireless communication may be affected by factors such as wall reflection and electromagnetic interference, resulting in unstable signals or communication interruption. Wired serial port communication can ensure reliable data transmission through a stable physical connection.

[0057] Compared with the prior art, the mine-used HPLC wireless hybrid network communication method and system provided by the present invention have the following beneficial effects: 1) The present invention loads the HPLC carrier signal onto the existing power line underground, and uses the existing power line in the tunnel to cover the tunnel signal, which not only improves the signal coverage range and communication stability, but also greatly reduces the construction difficulty and deployment cost.

[0058] 2) Aiming at the narrow environment of mines, the present invention has developed a mine star ad hoc wireless communication protocol. This protocol effectively solves the networking complexity and communication instability problems between HPLC and wireless terminal nodes, realizes the rapid network access (<1S) and high communication success rate (>95%) of wireless terminal nodes, and significantly improves the efficiency and reliability of mine communications.

[0059] 3) Through the HPLC wireless hybrid network communication system provided by the present invention, network signal deployment and wireless signal coverage can be quickly carried out in the underground edge tunnels without the need to separately lay network cables or optical fibers, which greatly saves economic costs. At the same time, it also reduces the life safety risks faced by miners due to the long-term installation of communication lines.

[0060] 4) The present invention achieves comprehensive coverage of signals from all underground tunnels, enabling mine maintenance personnel to promptly discover and handle faulty equipment and potential dangerous situations underground, thereby effectively reducing the probability of mine accidents and improving mine safety and production efficiency.

[0061] Figure 5 The structural block diagram of the electronic device provided by the present invention is as follows: Figure 5As shown, the present invention also provides an electronic device, the electronic device 500 can be a computing device such as a mobile terminal, a desktop computer, a notebook, a palm computer, and a server. The electronic device 500 includes a processor 501 and a memory 502, wherein the memory 502 stores a mine HPLC wireless hybrid network communication program 503.

[0062] In some embodiments, the memory 502 can be an internal storage unit of a computer device, such as a hard disk or memory of the computer device. In other embodiments, the memory 502 can also be an external storage device of the computer device, such as a plug-in hard disk equipped on the computer device, a smart memory card (Smart Media Card, SMC), a secure digital (SecureDigital, SD) card, a flash card (Flash Card), etc. Further, the memory 502 can also include both an internal storage unit of the computer device and an external storage device. The memory 502 is used to store application software and various types of data installed in the computer device, such as program codes installed in the computer device. The memory 502 can also be used to temporarily store data that has been output or is to be output. In one embodiment, when the mining HPLC wireless hybrid network communication program 503 is executed by the processor 501, the following steps are implemented: The Ethernet signal is converted into a power line carrier signal through an Ethernet signal to power line carrier signal device, and loaded onto the power line of the underground tunnel; The power line carrier signal is received, amplified and outputted by multiple carrier repeaters arranged on the power line, so that the power line carrier signal is extended to each lane along the power line; wherein the carrier repeater is integrated on the HPLC wireless gateway, and multiple HPLC wireless gateways are arranged on the power line at intervals; The power line carrier signal is converted into a wireless signal by using an HPLC wireless gateway and connected to a wireless terminal node in the lane; The data interface of the wireless terminal node is designed as a universal wired serial port to connect various terminal devices.

[0063] In some embodiments, the processor 501 may be a central processing unit (CPU), a microprocessor or other data processing chip, which is used to run the program code or process data stored in the memory 502, such as executing a mine HPLC wireless hybrid network communication program.

[0064] This embodiment also provides a computer-readable storage medium, on which a mine-used HPLC wireless hybrid network communication program is stored. When the mine-used HPLC wireless hybrid network communication program 503 is executed by a processor, the following steps are implemented: The Ethernet signal is converted into a power line carrier signal through an Ethernet signal to power line carrier signal device, and loaded onto the power line of the underground tunnel; The power line carrier signal is received, amplified and outputted by multiple carrier repeaters arranged on the power line, so that the power line carrier signal is extended to each lane along the power line; wherein the carrier repeater is integrated on the HPLC wireless gateway, and multiple HPLC wireless gateways are arranged on the power line at intervals; The power line carrier signal is converted into a wireless signal by using an HPLC wireless gateway and connected to a wireless terminal node in the lane; The data interface of the wireless terminal node is designed as a universal wired serial port to connect various terminal devices.

[0065] The above-mentioned embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the present invention. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

[0066] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A mine-based HPLC wireless hybrid network communication method, characterized in that: include: The Ethernet signal is converted into a power line carrier signal through an Ethernet signal to power line carrier signal device, and loaded onto the power line of the underground tunnel; The power line carrier signal is received, amplified and outputted by multiple carrier repeaters arranged on the power line, so that the power line carrier signal is extended to each lane along the power line; wherein the carrier repeater is integrated on the HPLC wireless gateway, and multiple HPLC wireless gateways are arranged on the power line at intervals; The power line carrier signal is converted into a wireless signal by using an HPLC wireless gateway and connected to a wireless terminal node in the lane.

2. The mine-used HPLC wireless hybrid network communication method according to claim 1, characterized in that: The method further comprises: The data interface of the wireless terminal node is designed as a universal wired serial port to connect various terminal devices.

3. The mine-used HPLC wireless hybrid network communication method according to claim 1, characterized in that: The Ethernet signal is converted into a power line carrier signal by using an Ethernet signal to power line carrier signal device, and loaded onto the power line of the underground tunnel, specifically including: The Ethernet signal to power line carrier signal device receives Ethernet data from the ring network switch through Ethernet or fiber optic transceiver and parses the data message; Sending the data message to the power line carrier module, which converts the data message into a power line carrier signal; The power line carrier signal is loaded onto the power line of the underground tunnel through a coupling coil to complete data downlink.

4. The mine-used HPLC wireless hybrid network communication method according to claim 1, characterized in that: The Ethernet signal to power line carrier signal device is also used for: The power line carrier signal on the power line is coupled to the carrier transceiver module through the coupling coil for demodulation, and the corresponding data message is output; The data message is sent to the Ethernet module through UART, and the Ethernet module converts the data message into TCP / IP format and sends it to the network cable and optical fiber to complete the data uplink.

5. The mine-used HPLC wireless hybrid network communication method according to claim 1, characterized in that: The wireless terminal node communicates with the nearby HPLC wireless gateway through wireless communication; each HPLC wireless gateway can cover multiple sensor nodes to form a star connection mode.

6. The mine-used HPLC wireless hybrid network communication method according to claim 5, characterized in that: The HPLC wireless gateway exchanges data with the wireless terminal nodes through multiple built-in communication channels, and the HPLC wireless gateway monitors the signal of each communication channel in a cyclic scanning manner; When the RSSI of any communication channel is detected to increase, the HPLC wireless gateway stops and receives the data of this channel, and then continues to scan other channels after completion; The backend MCU verifies and analyzes the received data and responds to the wireless terminal node based on the channel information in the data packet.

7. The mine-used HPLC wireless hybrid network communication method according to claim 6, characterized in that: The HPLC wireless gateway and the wireless terminal node perform data exchange via a mine star ad hoc network wireless communication protocol; RSSI and SNR information are introduced into the mine star ad hoc network wireless communication protocol; After obtaining RSSI and SNR information, the wireless terminal node selects the communication channel based on the received signal strength; RSSI is the received signal strength indicator, and SNR is the signal-to-noise ratio; According to the RSSI and SNR information of the optimal communication channel, the wireless terminal node adjusts the gain of the adjustable gain amplifier LNA of its own wireless receiver so that the RSS value received by the adjustable gain amplifier LNA is maintained at the target receiving value; wherein the RSS value is the received signal strength value; By adjusting the gain of the LNA, the signal power of useless signals entering the wireless receiver is weakened, thereby improving the SNR value of the demodulator and reducing the communication false alarm rate of the wireless terminal node.

8. A mine HPLC wireless hybrid network communication system applied to the mine HPLC wireless hybrid network communication method according to any one of claims 1 to 7, characterized in that: include: Ethernet signal to power line carrier signal equipment, connected to Ethernet, used to convert Ethernet signals into power line carrier signals and load them onto the power lines in the underground tunnels; The HPLC wireless gateway is communicatively connected with the Ethernet signal to power line carrier signal device. The HPLC wireless gateways are arranged at intervals on the power line. Each HPLC wireless gateway is integrated with a carrier repeater, which is used to receive, amplify and output the power line carrier signal. The HPLC wireless gateway is used to convert the power line carrier signal into a wireless signal and access the wireless terminal node in the lane. The wireless terminal node is wirelessly connected to the HPLC wireless gateway, and the data interface of the wireless terminal node is designed as a universal wired serial port to connect various terminal devices.

9. An electronic device, It is characterized in that comprising a memory and a processor, wherein: The memory is used to store programs; The processor is coupled to the memory and is used to execute the program stored in the memory to implement the steps in the mining HPLC wireless hybrid network communication method described in any one of claims 1 to 7.

10. A computer-readable storage medium, characterized in that: Used to store computer-readable programs or instructions, which, when executed by a processor, can implement the steps of the mining HPLC wireless hybrid network communication method described in any one of claims 1 to 7.

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