Method and device for wireless monitoring of railway protection based on linear scale wireless networking

Abstract

The present invention relates to a method and device for wireless monitoring of railway protection based on linear-scale wireless networking. The method comprises the following steps: deploying wireless micro-stations at commanding heights on communication towers along the railway; wirelessly connecting the wireless micro-stations to high-altitude cameras on other communication towers; the high-altitude cameras aggregate and transmit video data to the wireless micro-stations; the wireless micro-stations transmit the video data to wireless micro-stations on adjacent communication towers; repeating these steps until the wireless micro-stations transmit the video data to wireless micro-stations on communication towers near a monitoring center; connecting the wireless micro-stations on communication towers near the monitoring center to the monitoring center via optical fiber; and transmitting the received video data to the monitoring center via an optical fiber network. The method has the advantage of addressing the high cost of wireless coverage and the instability of existing wireless transmission technologies in linear scenarios such as along railways, rivers, and highways.

Description

Technical Field

[0001] The present invention relates to the technical field of railway line monitoring, and in particular to a method and device for wireless monitoring of railway protection based on linear scale wireless networking. Background Art

[0002] Currently, video surveillance along railway lines is virtually nonexistent. Train accidents are often unable to be recorded immediately, and there's no real-time video available for preventative analysis. While image analysis, camera sensing, and 4G / 5G communication technologies are relatively mature, railway lines are located in remote areas without convenient fiber optic networks, power lines, or public network coverage. Therefore, there's currently no effective and cost-effective way to transmit video data from these remote locations in real time.

[0003] The existing communication methods along the railway are wireless and wired. Wireless includes GSM-R communication system and wired includes optical fiber communication.

[0004] The signal control network based on GSM-R technology is dedicated to the daily operation and management of railways. It is a very effective dispatching and command communication tool, but it cannot achieve real-time transmission of broadband video data. It is an independent communication system and is not open to the public.

[0005] Fiber-optic communications along railway lines primarily serve as access backbone networks for existing railway communication base stations and are not open to the public. Deploying additional fiber-optic networks and establishing a security monitoring system along the railway would be prohibitively expensive. Furthermore, the area within 50 meters of the existing railway line is a protected area, where groundbreaking is prohibited. If construction is required, approval must be obtained from the relevant railway authorities, resulting in a lengthy and complex approval process.

[0006] Since the existing facilities along the railway are dedicated facilities and cannot be used directly, wireless broadband communications can be built along the railway using methods such as public 4G / 5G and wireless microwave.

[0007] When using the public 4G / 5G network, videos can be transmitted over the public network if the 4G / 5G signal is good in cities and surrounding areas. However, most railway lines are located in remote rural and mountainous areas, where public network coverage is sparse. Therefore, direct use of the public network to transmit video data is not feasible in actual monitoring scenarios.

[0008] When using wireless microwaves, wireless bridges, etc., the underlying wireless transmission protocol is based on 802.11, which has obvious weaknesses in anti-interference ability, low power consumption, and wireless transmission distance. In weather conditions such as rain, fog, and haze, the performance of wireless transmission will be seriously affected, and the anti-interference ability is relatively weak. In order to achieve long-distance wireless transmission, high-gain directional antennas and increased wireless signal amplifiers are generally used, and increasing the wireless signal amplifier directly increases the overall power consumption of the device. Since there are no power supply lines in remote areas, the power supply of the equipment can generally only be powered by solar energy or wind power, and the high power consumption of the equipment directly increases the cost of solar or wind power supply, resulting in high investment.

[0009] Regarding wired solutions, they are generally transmitted through fiber optic networks, or cables are pulled on both sides of the railway line. If only the monitoring function is completed, the investment cost is high, and the cables are often damaged, resulting in high maintenance costs.

[0010] One wireless solution involves transmitting over the public network operator's 4G network. However, this solution is ineffective due to unstable signals in remote areas, long video delays, and a poor user experience. Furthermore, high carrier data rates make it difficult to use. Another approach involves point-to-point transmission using wireless microwaves and wireless bridges. However, this approach is susceptible to interference, resulting in unstable video transmission and hindering power supply costs.

[0011] Patent document: CN212847137U, announcement date: 20210330, discloses a railway track monitoring system based on wireless communication, including at least two railway track monitoring nodes, a monitoring device and a power supply. The railway track monitoring node includes a temperature sensor, a vibration sensor, a camera, a first processor and a lithium battery. The monitoring device includes a second processor, a memory and a LORA antenna. Each first processor is communicatively connected to the second processor. The power supply includes a CT power coil, a rectifier and filter module, a DC / DC module, a voltage regulator module, a battery and a power switching module. The CT power coil is arranged on the AC line for drawing power from the AC line. The power switching module realizes the switching output of the two power supplies.

[0012] The advantages of this system are that it enables 24 / 7 real-time monitoring of railway tracks, eliminating the need for dedicated patrol personnel, reducing labor costs, improving monitoring efficiency, and significantly enhancing reliability. However, this technical solution still relies on public 4G / 5G transmission, making it unsuitable for remote areas with unstable signals, rendering the system ineffective.

[0013] The preceding description is intended to provide general background information and does not necessarily constitute prior art. Summary of the Invention

[0014] The purpose of the present invention is to provide a method and device for wireless monitoring of railway protection based on linear-scale wireless networking. The method can solve the problems of high wireless coverage cost and unstable existing wireless transmission technology in linear scenarios such as along railways, rivers, and highways.

[0015] The present invention provides a method for wireless monitoring of railway protection based on linear scale wireless networking, comprising the following steps:

[0016] S1: Deploy wireless micro base stations at the commanding heights of communication towers along the railway.

[0017] S2: Wireless connection between wireless micro-station and other high-altitude cameras on communication towers;

[0018] S3: The high-altitude camera aggregates and transmits the video data to the wireless micro station;

[0019] S4: The wireless micro station sends the video data to a wireless micro station on another adjacent communication tower;

[0020] S5: Repeat steps S2, S3, and S4 until the wireless micro station sends the video data to a wireless micro station on a communication tower close to the monitoring center;

[0021] S6: The wireless micro station on the communication tower near the monitoring center is connected to the monitoring center via optical fiber;

[0022] S7: The wireless micro station on the communication tower close to the monitoring center transmits the received video data to the monitoring center through the optical fiber network.

[0023] Furthermore, the step S3 includes the steps of:

[0024] S31: High-altitude cameras on other communication towers within a 5-kilometer radius of the wireless micro station use linear multi-SHF frequency band wireless networking to wirelessly aggregate video data to the wireless micro station.

[0025] Furthermore, the step S7 includes the steps of:

[0026] S71: Low-altitude cameras use the nearest wireless micro-station and star-shaped multi-UHF band wireless networking to aggregate low-altitude video data transmission to the wireless micro-station with fiber optic access under the premise of certain obstructions.

[0027] Furthermore, the linear multi-SHF frequency band wireless networking method includes:

[0028] According to the linear direction of the business flow, the networking strategy is judged, and the loopback frequency band status information of each linear high-altitude device is exchanged in real time, and the linear networking route is continuously adjusted in real time to achieve a linear multi-frequency networking strategy.

[0029] Furthermore, the star-shaped multi-UHF frequency band wireless networking method includes:

[0030] Within a certain distance radius of the device, it is necessary to obtain the loopback frequency band status information of the low-altitude device in real time and continuously adjust the star network UHF band in real time to achieve the star multi-frequency networking strategy.

[0031] The present invention also provides a device for wireless monitoring of railway protection based on linear scale wireless networking, and the device for wireless monitoring of railway protection based on linear scale wireless networking is applied to any of the above-mentioned methods for wireless monitoring of railway protection based on linear scale wireless networking.

[0032] Furthermore, the device for wireless monitoring of railway protection based on linear-scale wireless networking includes a wireless microstation, which includes a lightweight low-frequency wireless private network communication module, and the lightweight low-frequency wireless private network communication module includes a physical protocol control unit, a digital processing algorithm unit, a hardware interface unit and a wireless unit; the physical protocol control unit is responsible for completing the physical protocol process control function according to the instructions of the LTE-OFDM protocol module, including collaborative processing resources, transceiver control, algorithm calling, result summary reporting, and process control of the service transmission protocol process; the digital processing algorithm unit is responsible for providing a digital algorithm library and completing the processing of transceiver data according to protocol requirements, including data scanning, data detection, data generation, received data demodulation, and data decoding processing; the hardware interface unit is responsible for the configuration, enabling, and shutting down of the wireless unit, bottom-level response processing, event control processing, and sleep processing; the wireless unit is responsible for the software-defined configuration of low-frequency conversion and the software-defined configuration of transmission power.

[0033] Furthermore, the wireless micro station also includes an LTE-OFDM protocol module, which includes an entry channel management unit, a wireless resource control management unit, an orthogonal frequency division multiplexing unit, a data stream high-low conversion unit, and a physical adaptation unit; the entry channel management unit is responsible for providing entry channel instruction conversion processing, converting external instructions into internal processing instructions, and is responsible for access and transmission at the data layer; the wireless resource control management unit is responsible for resource control and management, controlling the dynamic configuration of underlying parameters, controlling device access, controlling device connection, managing device mobility, controlling the recovery mechanism of wireless link failure, and completing data detection, mapping, control, and transmission; The orthogonal frequency division multiplexing unit is responsible for solving frequency selective fading in complex wireless transmission environments, configuring uplink and downlink resource conversion, and realizing asymmetric uplink and downlink service configuration, so as to maximize the resource utilization of unidirectional asymmetric services; the data stream high-low conversion unit is responsible for decomposing high-speed service data streams into multi-service parallel low-speed data streams, allocating service data to independent subcarriers, utilizing the independence of channel fading, and using the multi-service data diversity gain brought by the joint independent subcarrier allocation to improve the wireless broadband performance in complex scenarios and achieve broadband transmission capability; the physical adaptation unit is responsible for completing information format adaptation and relay transmission with the lightweight low-frequency wireless private network communication module.

[0034] The method for wireless monitoring of railway protection based on linear-scale wireless networking provided by the present invention solves the current situation of no network and no electricity along the railway line while controlling the cost, and provides three-dimensional and all-round monitoring coverage along the railway line to ensure that the railway line is visible and controllable. Compared with existing technical solutions, it can solve the problems of high wireless coverage cost and unstable existing wireless transmission technology in linear scenarios such as along railways, rivers, and highways. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 This is a flow chart of a method for wireless monitoring of railway protection based on linear-scale wireless networking provided by an embodiment of the present invention.

[0036] Figure 2 This is a module diagram of multi-frequency hopping provided by an embodiment of the present invention.

[0037] Figure 3 This is a module diagram of a linear multi-SHF frequency band wireless network provided by an embodiment of the present invention.

[0038] Figure 4 This is a module diagram of a star-shaped multi-UHF frequency band wireless network provided by an embodiment of the present invention.

[0039] Figure 5 This is a flow chart of a low signal-to-noise and low-power wireless transmission mechanism provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0040] The following embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples. The following examples are used to illustrate the present invention but are not intended to limit the scope of the present invention.

[0041] The terms "first", "second", "third", "fourth", etc. in the description and claims of the present invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0042] Example 1

[0043] Figure 1 This is a flow chart of a method for wireless monitoring of railway protection based on linear scale wireless networking provided by an embodiment of the present invention. Figure 1 The present invention provides a method for wireless monitoring of railway protection based on linear scale wireless networking, comprising the following steps:

[0044] S1: Deploy wireless micro base stations at the commanding heights of communication towers along the railway.

[0045] It should be noted that although the public network signals on the existing communication towers along the railway cannot directly transmit video data due to incomplete signal coverage, the commanding heights of the towers can continue to be used to deploy high-altitude omnidirectional wireless micro stations.

[0046] S2: Wireless connection between wireless micro-station and other high-altitude cameras on communication towers;

[0047] S3: The high-altitude cameras aggregate and transmit the video data to the wireless micro station. Specifically, the high-altitude cameras on other communication towers within a 5-kilometer radius of the wireless micro station use a linear multi-SHF frequency band wireless networking method to wirelessly aggregate the video data to the wireless micro station.

[0048] It should be noted that due to the high fiber transmission costs of operators, in order to reduce the number of optical fibers used by each high-altitude camera along the railway, thereby significantly saving fiber transmission costs; other high-altitude cameras within a 5-kilometer radius of the high-altitude wireless micro-station adopt a linear multi-SHF frequency band wireless networking method to wirelessly aggregate video data to the wireless micro-station, ensuring high-speed transmission capabilities and directly reducing fiber transmission costs to 1 / 4;

[0049] Figure 4 This is a module diagram of a star-shaped multi-UHF frequency band wireless network provided by an embodiment of the present invention. Figure 4 As shown, the star-shaped multi-UHF frequency band wireless networking method includes: within a certain distance radius of the device, it is necessary to obtain the loopback frequency band status information of the low-altitude device in real time, and continuously adjust the star-shaped networking UHF frequency band in real time to achieve the star-shaped multi-frequency networking strategy.

[0050] Specifically, in the star-shaped multi-UHF frequency band wireless networking strategy, within a certain distance radius of the device, the environment of each low-altitude terminal device is different. In order to ensure that each low-altitude terminal device can ensure stable transmission of the wireless channel in an environment with unobstructed line of sight or certain obstruction of non-visual visibility, it is necessary to obtain the loopback frequency band status information of the low-altitude device in real time, and continuously adjust the star-shaped networking UHF frequency band in real time to achieve the star-shaped multi-frequency networking strategy. Adaptive detection: Real-time detection of the channel signal-to-noise situation of the frequency band where the low-altitude terminal device is located, and adjustment of the wireless UHF frequency band configuration to ensure that the star-shaped networking strategy is conducive to stable data transmission. Star networking: While ensuring the stable connection of the link of the linear backbone network, the device can also provide star-shaped device networking access within a certain distance radius in all directions. In the processing of the loopback information of each device, a star-shaped frequency band selection strategy table is generated.

[0051] S4: The wireless micro station sends the video data to a wireless micro station on another adjacent communication tower;

[0052] S5: Repeat steps S2, S3, and S4 until the wireless micro station sends the video data to a wireless micro station on a communication tower close to the monitoring center;

[0053] S6: The wireless micro station on the communication tower near the monitoring center is connected to the monitoring center via optical fiber;

[0054] S7: The wireless micro station on the communication tower close to the monitoring center transmits the received video data to the monitoring center through the optical fiber network.

[0055] Furthermore, the step S7 includes the steps of:

[0056] S71: Low-altitude cameras use the nearest wireless micro-station and star-shaped multi-UHF band wireless networking to aggregate low-altitude video data transmission to the wireless micro-station with fiber optic access under the premise of certain obstructions.

[0057] Figure 3 This is a module diagram of a linear multi-SHF frequency band wireless network provided by an embodiment of the present invention. Figure 3 As shown, the linear multi-SHF frequency band wireless networking method includes: judging the networking strategy based on the linear direction of the business flow, and exchanging the loopback frequency band status information of each linear high-altitude device in real time, and continuously adjusting the linear networking route in real time to achieve the linear multi-frequency networking strategy. Adaptive detection: Real-time detection of the business flow transmission direction, adjustment of the wireless time slot channel configuration, and ensuring that the linear networking strategy is conducive to stable data transmission. Linear networking: While providing star networking capabilities, the device ensures the formation of a link connection for a linear backbone network based on the business flow direction, and generates a linear routing connection strategy table based on the processing of the loopback information of each device.

[0058] It should be noted that communication towers generally have power supply measures, so they can directly provide uninterrupted power supply for wireless micro stations and high-altitude cameras; low-altitude cameras and low-altitude wireless terminals are located without power supply measures, so solar energy and wind energy are needed for necessary power supply; the largest power consumption at low altitudes comes from wireless transmission equipment. In order to reduce the additional power consumption brought by wireless transmission equipment and reduce the cost of solar energy and wind energy, wireless transmission equipment adopts a low signal-to-noise and low-power wireless transmission mechanism. Under the premise of low signal-to-noise ratio of the wireless channel, it can also transmit signals with low wireless power, greatly reducing the power consumption required by the equipment.

[0059] The method for wireless monitoring of railway protection based on linear-scale wireless networking of the present invention adopts multi-frequency hopping technology in linear networking, which ensures that other high-altitude and low-altitude wireless devices within a 5km radius of the optical fiber access wireless micro station can be accessed at any time; high-frequency bands are used at high altitudes to ensure high bandwidth rate; low-frequency bands are used at low altitudes to ensure wireless diffraction capability with certain noise obstacles.

[0060] Figure 5 This is a flow chart of the low signal-noise and low-power wireless transmission mechanism provided by an embodiment of the present invention. Figure 5 As shown, the method of wireless monitoring of railway protection based on linear-scale wireless networking of the present invention adopts a low-signal-noise and low-power wireless transmission mechanism for wireless devices to ensure that the wireless devices are connected to the nearest wireless micro station nearby, and can also perform wireless communication at low transmission power when the signal-to-noise ratio of the wireless channel is low, thereby greatly reducing the overall power consumption of the wireless devices.

[0061] Specifically, in the low signal-noise and low-power wireless transmission mechanism, the device does not pursue the maximum and optimal wireless channel signal-to-noise ratio, but instead determines how to calculate the minimum critical signal-to-noise ratio and continuously adjusts it to stabilize at the critical signal-to-noise ratio, thereby reducing the power consumption of the device's most power-consuming RF front-end. At the same time, it can also ensure the wireless broadband transmission quality of low-altitude devices within a certain wireless transmission distance.

[0062] Figure 2 This is a module diagram of multi-frequency hopping provided by an embodiment of the present invention. Figure 2As shown, multi-frequency hopping technology uses omnidirectional wireless device searches for UHF and SHF bands. Based on the device type and location, it calculates the wireless communication distance of other devices. Using frequency band loopback selection, it selects the closest wireless device with the best signal for connection, then jumps to the optimal frequency band for communication, and continuously re-evaluates and re-selects through frequency band loopback. Frequency band loopback selection: omnidirectionally searches for available frequency bands within a certain distance radius, calculates and determines the channel conditions of each UHF and SHF band, and ranks them at the service application layer. Frequency band hopping and calling: Based on the preset linear path direction and then sorting based on the frequency band loopback results, the appropriate frequency band is calculated and jumped to. If a device in the linear path experiences a problem or is subject to wireless interference, the real-time frequency band loopback results are used to sort and re-judgment and call the appropriate frequency band.

[0063] The present invention also provides a device for wireless monitoring of railway protection based on linear scale wireless networking, which is applied to the above-mentioned method for wireless monitoring of railway protection based on linear scale wireless networking.

[0064] Furthermore, the railway protection wireless monitoring based on linear-scale wireless networking includes a wireless microstation, which includes a lightweight low-frequency wireless private network communication module, and the lightweight low-frequency wireless private network communication module includes a physical protocol control unit, a digital processing algorithm unit, a hardware interface unit and a wireless unit; the physical protocol control unit is responsible for completing the physical protocol process control function according to the instructions of the LTE-OFDM protocol module, including collaborative processing resources, transceiver control, algorithm call, result summary and reporting, and at the same time performing process control on the service transmission protocol process; the digital processing algorithm unit is responsible for providing a digital algorithm library and completing the processing of transceiver data according to the protocol requirements, including data scanning, data detection, data generation, received data demodulation, and data decoding processing; the hardware interface unit is responsible for the configuration, enabling, and shutting down of the wireless unit, the underlying response processing, the event control processing, and the sleep processing; the wireless unit is responsible for the software-defined configuration of low-frequency conversion and the software-defined configuration of transmission power.

[0065] The wireless micro station of the present invention also includes an LTE-OFDM protocol module, which includes an entry channel management unit, a wireless resource control management unit, an orthogonal frequency division multiplexing unit, a data stream high-low conversion unit and a physical adaptation unit; the entry channel management unit is responsible for providing entry channel instruction conversion processing, converting external instructions into internal processing instructions, and is responsible for access and transmission at the data level; the wireless resource control management unit is responsible for resource control and management, controlling the dynamic configuration of underlying parameters, controlling device access, controlling device connection, managing device mobility, controlling the recovery mechanism of wireless link failure, and completing data detection, mapping, control and transmission; The orthogonal frequency division multiplexing unit is responsible for solving frequency selective fading in complex wireless transmission environments, configuring uplink and downlink resource conversion, and realizing asymmetric uplink and downlink service configuration, so as to maximize the resource utilization of unidirectional asymmetric services; the data stream high-low conversion unit is responsible for decomposing high-speed service data streams into multi-service parallel low-speed data streams, allocating service data to independent subcarriers, and utilizing the independence of channel fading. The multi-service data diversity gain brought by the joint independent subcarrier allocation is used to improve the wireless broadband performance in complex scenarios and achieve broadband transmission capability; the physical adaptation unit is responsible for completing information format adaptation and relay transmission with the lightweight low-frequency wireless private network communication module.

[0066] Based on the above description, it can be seen that the advantages of the present invention are:

[0067] 1. The method for wireless monitoring of railway protection based on linear-scale wireless networking provided by the present invention solves the current situation of no network and no electricity along the railway line under controllable costs, and provides three-dimensional and all-round monitoring coverage along the railway line to ensure that the railway line is visible and controllable. Compared with existing technical solutions, it can solve the problems of high wireless coverage costs and unstable existing wireless transmission technology in linear scenarios such as along railways, rivers, and highways.

[0068] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any modifications or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included in the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A method for wireless monitoring of railway protection based on linear scale wireless networking, characterized in that: The following steps are involved: S1: Deploy wireless micro base stations at the commanding heights of communication towers along the railway. S2: Wireless connection between wireless micro-station and other high-altitude cameras on communication towers; S3: The high-altitude camera aggregates and transmits the video data to the wireless micro station; S4: The wireless micro station sends the video data to a wireless micro station on another adjacent communication tower; S5: Repeat steps S2, S3, and S4 until the wireless micro station sends the video data to a wireless micro station on a communication tower close to the monitoring center; S6: The wireless micro station on the communication tower near the monitoring center is connected to the monitoring center via optical fiber; S7: The wireless micro-station on the communication tower close to the monitoring center transmits the received video data to the monitoring center via the optical fiber network; The wireless micro station includes a lightweight low-frequency wireless private network communication module, which includes a physical protocol control unit, a digital processing algorithm unit, a hardware interface unit and a wireless unit; the wireless micro station also includes an LTE-OFDM protocol module; The physical protocol control unit is responsible for completing the physical protocol process control function according to the instructions of the LTE-OFDM protocol module, including collaborative processing resources, transceiver control, algorithm call, result summary and reporting, and at the same time controlling the process of service transmission protocol; The digital processing algorithm unit is responsible for providing a digital algorithm library and completing the processing of sent and received data according to the protocol requirements, including data scanning, data detection, data generation, received data demodulation, and data decoding processing; The hardware interface unit is responsible for the configuration, enabling, disabling, bottom-level response processing, event control processing, and sleep processing of the wireless unit; The wireless unit is responsible for the software-defined configuration of low-frequency conversion and the software-defined configuration of transmission power.

2. The method for wireless monitoring of railway protection based on linear scale wireless networking according to claim 1, characterized in that: The step S3 comprises the steps of: S31: High-altitude cameras on other communication towers within a 5-kilometer radius of the wireless micro station use linear multi-SHF frequency band wireless networking to wirelessly aggregate video data to the wireless micro station.

3. The method for wireless monitoring of railway protection based on linear scale wireless networking according to claim 1, characterized in that: The step S7 comprises the steps of: S71: Low-altitude cameras use the nearest wireless micro-station and star-shaped multi-UHF band wireless networking to aggregate low-altitude video data transmission to the wireless micro-station with fiber optic access under the premise of certain obstructions.

4. The method for wireless monitoring of railway protection based on linear scale wireless networking according to claim 2, characterized in that: The linear multi-SHF frequency band wireless networking method includes: According to the linear direction of the business flow, the networking strategy is judged, and the loopback frequency band status information of each linear high-altitude device is exchanged in real time, and the linear networking route is continuously adjusted in real time to achieve a linear multi-frequency networking strategy.

5. The method for wireless monitoring of railway protection based on linear scale wireless networking according to claim 3, characterized in that: The star-shaped multi-UHF frequency band wireless networking method includes: Within a certain distance radius of the device, it is necessary to obtain the loopback frequency band status information of the low-altitude device in real time and continuously adjust the star network UHF band in real time to achieve the star multi-frequency networking strategy.

6. A device for wireless monitoring of railway protection based on linear scale wireless networking, characterized in that: The device for wireless monitoring of railway protection based on linear-scale wireless networking is used to implement the method for wireless monitoring of railway protection based on linear-scale wireless networking as described in any one of claims 1 to 5.

7. The device for wireless monitoring of railway protection based on linear scale wireless networking according to claim 6, characterized in that: The device for wireless monitoring of railway protection based on linear-scale wireless networking includes a wireless micro station.

8. The device for wireless monitoring of railway protection based on linear scale wireless networking according to claim 7, characterized in that: The LTE-OFDM protocol module includes an entry channel management unit, a radio resource control management unit, an orthogonal frequency division multiplexing unit, a data stream high-low conversion unit and a physical adaptation unit; The entry channel management unit is responsible for providing entry channel instruction conversion processing, converting external instructions into internal processing instructions, and is responsible for access and transmission at the data level; The radio resource control management unit is responsible for resource control and management, controlling the dynamic configuration of underlying parameters, controlling device access, controlling device connection, managing device mobility, controlling the recovery mechanism for radio link failure, and completing data detection, mapping, control and transmission; The orthogonal frequency division multiplexing unit is responsible for solving frequency selective fading in complex wireless transmission environments, configuring uplink and downlink resource conversion, and realizing asymmetric uplink and downlink service configuration, thereby maximizing resource utilization of unidirectional asymmetric services; The data stream high-low conversion unit is responsible for decomposing the high-speed service data stream into multiple parallel low-speed data streams, allocating the service data to independent subcarriers, and utilizing the independence of channel fading. The multi-service data diversity gain brought by the joint independent subcarrier allocation is used to improve the wireless broadband performance in complex scenarios and achieve broadband transmission capabilities. The physical adaptation unit is responsible for completing information format adaptation and relay transmission with the lightweight low-frequency wireless private network communication module.

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