Separation layer wireless detection system based on magnetic sensor

Abstract

The invention discloses a separation layer wireless detection system based on a magnetic sensor, and belongs to the technical field of magnetic sensors. Aiming at the problems of complex structure, unstable system, low precision, high cost and the like of the traditional separation layer sensor, a magnet is fixed on a steel wire rope at the bottom of the separation layer sensor, a high-precision magnetic sensor is mounted at a position parallel to the steel wire rope at the bottom of the separation layer sensor through a structural member, and the mounting distance is 1-10mm; the high-precision magnetic sensor is connected with the separation layer wireless detection controller through a hard wire, the separation layer wireless detection controller detects displacement data of the steel wire rope through the separation layer sensor, and the internal controller detects and processes the displacement data of the steel wire rope and transmits the related displacement data to the cloud platform in a wireless mode. According to the invention, the magnetic sensing array is used for measuring the infinitesimal displacement of the steel wire rope, and the high-precision measurement of the separation layer can be realized. In addition, a wireless communication mode is provided, field wiring is omitted, installation is simplified, cost is saved and reduced, and the reliability of equipment and the system is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of magnetic sensors, and in particular relates to a wireless detection system for separation layers based on magnetic sensors. Background Art

[0002] Traditional delamination sensors basically use a steel wire rope wound on a reel, with the upper end of the wire rope anchored in a drilled hole in the tunnel ceiling. When the rock layer to which the upper end of the wire rope is anchored undergoes delamination displacement, the wire rope moves and pulls the relevant sensors for measurement. Some use a displacement ruler in combination with a proximity switch, while others use a grating to measure the displacement data of the delamination.

[0003] CN 115127470 A and CN109631791A both use optical fiber abscission sensors. The internal structure of the optical fiber roof abscission sensor is complex. In addition, the space reserved for the roof abscission sensor is limited, resulting in one sensor being able to accommodate only the core components of two base points, deep and shallow. Moreover, the displacement caused by the roof abscission needs to be transmitted layer by layer before it can be converted into the wavelength change of the grating in the optical fiber, which results in low accuracy of the sensor.

[0004] CN 102174898 B adopts a precision wire displacement ruler and a wired method to transmit delamination data; the displacement ruler is not accurate enough and will age after long-term use, resulting in reduced accuracy. The wired method of transmitting data has the problems of high cost, complex wiring and low reliability. Summary of the invention

[0005] Aiming at the problems of complex structure, unstable system, low precision and high cost of traditional delamination sensors, the present invention provides a delamination wireless detection system based on magnetic sensors.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A delamination wireless detection system based on a magnetic sensor, the system comprising a magnet, a delamination detection mechanism, a delamination wireless detection controller, a wireless gateway, and a cloud platform;

[0008] The wireless gateway is connected to the separation layer wireless detection controller and the cloud platform by wireless communication respectively; the wireless gateway is responsible for receiving, forwarding and accessing the network of data.

[0009] The wireless gateway is used to receive the sensing data of the separation layer wireless detection controller or send a wake-up instruction to the separation layer wireless detection controller;

[0010] The delamination wireless detection controller periodically sends or receives a wake-up signal from the wireless gateway and then sends data. The delamination wireless detection controller collects displacement data of the current sensor location according to the timed wake-up instruction of the wireless gateway, and uploads the collected displacement data to the wireless gateway in the form of a chain network using a single-hop or multi-hop wireless communication method. A single hop means that two adjacent delamination wireless detection controllers perform relay wireless communication transmission; a multi-hop means that one or more delamination wireless detection controllers perform relay wireless communication transmission at intervals; the wireless gateway aggregates the data and uploads it to the cloud platform.

[0011] The cloud platform conducts comprehensive analysis and judgment on the angle data uploaded by the wireless gateway.

[0012] Furthermore, the delamination wireless detection controller includes a main controller, a wireless communication unit, a magnetic sensor array, a battery, a wireless transmission circuit and a housing;

[0013] The delamination detection structure includes a metal claw and a claw telescopic structure;

[0014] The wireless communication technology used by the wireless communication unit includes at least one of Bluetooth, RFID, Lora, NB-IoT, 4G, 5G and star flash light;

[0015] The data encoding format transmitted by the wireless communication technology includes a start bit, an address bit, a data bit and a check bit.

[0016] Further, the wireless gateway includes a main controller, a wireless communication unit, a 4G / 5G communication module, an ETH Ethernet communication module, a wireless transmission circuit and a housing;

[0017] The wireless communication technology used by the wireless communication unit includes at least one of Bluetooth, RFID, Lora, NB-IoT, 4G, 5G and star flash light;

[0018] The data encoding format transmitted by the wireless communication technology includes a start bit, an address bit, a data bit and a check bit.

[0019] Furthermore, the delamination wireless detection controller or wireless gateway is arranged in a shell, the shell is made of polymer material, sealed by epoxy resin, and meets the IP65 protection level, and the design standard refers to the mine safety and coal safety design;

[0020] The wireless transmission circuit of the wireless sensor device or the wireless gateway adopts a circuit board microstrip antenna and is connected to the respective main controllers through a feeder line.

[0021] Furthermore, a magnetic sensor array is arranged at the bottom of the mechanical part of the delamination wireless detection controller, and a steel wire rope is provided above the magnetic sensor array. A magnet is fixed on the steel wire rope. The magnetic sensor array is installed by a structural member to a position parallel to the steel wire rope at the bottom of the delamination wireless detection controller, and the installation distance is 1 to 10 mm. The magnetic sensor array is connected to the delamination wireless detection controller through a hard wire. The delamination wireless detection controller detects and processes the displacement data of the steel wire rope, and transmits the relevant displacement data to the cloud platform through wireless transmission.

[0022] Furthermore, the working process of the delamination wireless detection controller is as follows:

[0023] Step 1: After power-on, the system enters initialization, configures the working status of related modules, and then enters sleep mode. The separation layer wireless detection controller wakes up regularly, or the wireless gateway sends a wake-up command to the separation layer wireless detection controller to work;

[0024] Step 2: After waking up, collect high-precision magnetic sensor data to determine whether the data exceeds the threshold;

[0025] Step 3: When the data of the high-precision magnetic sensor does not exceed the threshold, the data is uploaded to the wireless gateway at a scheduled time, and then the separation layer wireless detection controller enters a dormant state, waiting for the wireless gateway to send a wake-up command;

[0026] Step 4: When the data from the high-precision magnetic sensor exceeds the threshold, the data is uploaded to the cloud platform in real time, and then the separation wireless detection controller enters a dormant state, waiting for the wireless gateway to send a wake-up command.

[0027] Furthermore, the magnetic sensor array is composed of multiple high-precision magnetic sensors, and the number of high-precision magnetic sensors in a single magnetic sensor array is no more than 16. The magnetic sensor array and a single magnetic sensor have a limited range. Multiple magnetic sensors are used in combination to expand the range of the entire magnetic sensor array to meet measurement requirements.

[0028] The high-precision magnetic sensors in the magnetic sensor array are arranged at equal intervals;

[0029] The magnetic sensor array has a length of not less than 200 mm and a width of not less than 10 mm;

[0030] The magnetic sensor array and the delamination wireless detection controller are connected by hard wire, which includes a power line, a signal line, a clock line, an address line and a ground line, and the outer layer of the signal line has a shielding layer.

[0031] Furthermore, the outer shell of the delamination wireless detection controller is provided with fixing holes, and the installation method is bolt fixing or magnetic suction installation;

[0032] The delamination wireless detection controller supports access to one or more magnetic sensor arrays.

[0033] Furthermore, the magnetic sensor array communicates with the main controller via I2C or SPI, and the wireless communication unit communicates with the main controller via UART or SPI.

[0034] Furthermore, the method for measuring the angle of the delamination wireless detection controller is:

[0035] The magnetic sensor array in the delamination wireless detection controller simultaneously outputs the angle values ​​of the XY plane, XZ plane, and YZ plane. The angles α1 and α2 are output through the 16-bit ADC output algorithm. The displacement position of the magnet relative to the magnetic sensor array is obtained according to the trigonometric function relationship, and then the displacement position of the delamination wireless detection controller is obtained:

[0036]

[0037] L1=L0-L2

[0038] Wherein, L0 is the distance between the two magnetic sensors, L1 represents the horizontal component of the distance between the magnet and magnetic sensor 1, L2 represents the horizontal component of the distance between the magnet and magnetic sensor 2, and S1 represents the distance between the magnet and magnetic sensor 2.

[0039] Compared with the prior art, the present invention has the following advantages:

[0040] The present invention proposes to use a magnetic sensor array to measure the tiny displacement of the wire rope, which can achieve high-precision measurement of the separation layer. In addition, the present invention proposes to use wireless communication to save on-site wiring, simplify the installation method, save costs, and improve the reliability of equipment and systems.

[0041] The present invention is a wireless desorption detection system based on magnetic sensors. A single wireless desorption detection controller can perform wireless measurement without the need to lay out power and signal lines. Combined with the wireless detection system, it can meet application scenarios such as equipment pre-installation, post-installation and later modification, reduce the difficulty of on-site deployment, improve system stability, and has low cost.

[0042] The present invention uses a single-hop or multi-hop wireless communication method in the form of a chain network to upload the collected angle data. The wireless chain network can realize long-distance data transmission. Through the relay of multiple nodes, the coverage of the wireless signal can be extended to a very far place. Compared with the traditional wired network, the wireless chain network has obvious advantages in construction cost. Laying long-distance cables or optical fibers requires a lot of manpower, material resources and financial resources, including the purchase of cables, the implementation of laying projects and the subsequent maintenance costs. However, the wireless chain network does not need to carry out large-scale cable laying, and only needs to install wireless node equipment, which greatly reduces the construction cost and construction difficulty. In practical applications, the flexibility of the wireless chain network is very high. If it is necessary to increase or decrease the nodes in the network, the operation is relatively simple. In some complex environments, the stability of the wireless chain network is excellent. Even if a node fails due to natural disasters, man-made damage and other reasons, as long as it is not a key node or multiple adjacent nodes fail at the same time, the network can continue to maintain a certain data transmission capacity by replanning the transmission path or enabling spare nodes, etc., to ensure the basic operation of the entire system. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Figure 1 It is the overall structure of the delamination wireless detection controller, wherein: 102-metal claw, 103-claw telescopic structure, 202-main controller, 203-magnetic sensor array, 204-battery, 205-wireless communication unit, 206-magnet;

[0044] Figure 2 It is a partial structure of a delamination wireless detection controller, wherein: 202-main controller, 203-magnetic sensor array, 204-battery, 205-wireless communication unit;

[0045] Figure 3 It is a schematic diagram of a wireless gateway, where: 302-main controller, 303-wireless communication unit, 304-4G / 5G communication module, 305-ETH Ethernet communication module;

[0046] Figure 4 It is a schematic diagram of the connection relationship between the separation layer wireless detection controller and the wire rope;

[0047] Figure 5 An angle diagram of the measurement method of the separation layer wireless detection controller;

[0048] Figure 6 This is the working flow diagram of the separation layer wireless detection controller;

[0049] Figure 7 It is a schematic diagram of the overall system of the present invention and a schematic diagram of a single-hop or multi-hop wireless transmission mode of a chain network;

[0050] Figure 8It is a diagram of an array of multiple separation layer wireless detection controllers;

[0051] Fig. 9 It is the wireless communication data encoding format of a single separation layer wireless detection controller. DETAILED DESCRIPTION

[0052] In order to gain a deeper understanding of the present invention, we will provide a comprehensive and detailed description of the present invention. However, the present invention has multiple implementations and is not limited to the specific examples listed herein. The presentation of these examples is intended to deepen the comprehensive understanding of the disclosure of the present invention.

[0053] The exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided to enable a more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art.

[0054] The embodiment of the present invention provides a wireless detection system for separation layer based on a magnetic sensor. The overall system diagram is shown in the attached figure. Figure 7 As shown, the system includes a separation layer wireless detection controller 201, a wireless gateway 301, a cloud platform 401, a magnet 206, and a separation layer detection mechanism 101;

[0055] The wireless gateway 301 is wirelessly connected to the separation layer wireless detection controller 201 and the cloud platform 401 respectively;

[0056] The wireless gateway 301 is used to send a timed wake-up instruction to the separation layer wireless detection controller 201; the wireless gateway 301 is responsible for receiving, forwarding and accessing the network of data.

[0057] The delamination wireless detection controller 201 collects the current displacement data according to the timed wake-up instruction of the wireless gateway 301, and uploads the collected displacement data to the wireless gateway 301 in the form of a chain network using a single-hop or multi-hop wireless communication method; the chain network is as shown in the attached Figure 8 As shown in the figure; single hop, that is, two adjacent separation layer wireless detection controllers carry out relay wireless communication transmission; multi-hop, that is, one or more separation layer wireless detection controllers carry out relay wireless communication transmission, single hop, multi-hop forms are shown in the attached figure Figure 7 shown.

[0058] The cloud platform 401 performs comprehensive analysis and judgment on the angle data uploaded by the wireless gateway 301 .

[0059] Furthermore, the delamination wireless detection controller 201 includes a main controller 202, a wireless communication unit 205, a magnetic sensor array 203, a battery 204, a wireless transmission circuit and a housing; Figure 2 As shown;

[0060] The delamination detection structure 101 includes a metal claw 102 and a claw telescopic structure 103; Figure 1 As shown;

[0061] The wireless communication technology used by the wireless communication unit 205 includes at least one of Bluetooth, RFID, Lora, NB-IoT, 4G, 5G and star flash light;

[0062] The data encoding format transmitted by the wireless communication technology includes a start bit, an address bit, a data bit and a check bit; as shown in the attached Fig. 9 As shown; wherein, the start bit is the type of the separation wireless detection controller, the address bit is the MAC address of the separation wireless detection controller, the MAC address of a single separation wireless detection controller is unique, and the source of the data can be determined based on this address; data bit: the angle data detected by the separation wireless detection controller; check bit: whether the data collected and sent by the separation wireless detection controller is correct, and whether the data is valid can be determined based on this check bit.

[0063] Further, the wireless gateway 301 includes a main controller 302, a wireless communication unit 303, a 4G / 5G communication module 304, an ETH Ethernet communication module 305, a wireless transmission circuit and a housing; as shown in the attached Figure 3 shown.

[0064] The wireless communication technology used by the wireless communication unit 303 includes at least one of Bluetooth, RFID, Lora, NB-IoT, 4G, 5G and star flash light;

[0065] The data encoding format transmitted by the wireless communication technology includes a start bit, an address bit, a data bit and a check bit.

[0066] Furthermore, the delamination wireless detection controller or wireless gateway is arranged in a shell, the shell is made of polymer material, sealed by epoxy resin, and meets the IP65 protection level, and the design standard refers to the mine safety and coal safety design;

[0067] The wireless transmission circuit of the wireless sensor device or the wireless gateway adopts a circuit board microstrip antenna and is connected to the respective main controllers through a feeder line.

[0068] Furthermore, a magnetic sensor array is arranged at the bottom of the mechanical part of the separation wireless detection controller, a steel wire rope is provided above the magnetic sensor array, a magnet is fixed on the steel wire rope, the magnetic sensor array is installed by a structural member to a position parallel to the steel wire rope at the bottom of the separation wireless detection controller, and the installation distance is 1 to 10 mm. The magnetic sensor array is connected to the separation wireless detection controller through a hard line, and the separation wireless detection controller transmits the relevant displacement data to the cloud platform through wireless transmission by detecting and processing the displacement data of the magnet; as shown in the attached Figure 4 shown.

[0069] Further, the working process of the delamination wireless detection controller is as shown in the attached Figure 6 As shown, the specific process is:

[0070] Step 1: After power-on, the system enters initialization, configures the working status of related modules, and then enters sleep mode. The wireless gateway sends a wake-up command to the separation layer wireless detection controller;

[0071] Step 2: Collect high-precision magnetic sensor data after timed wake-up to determine whether the data exceeds the threshold;

[0072] Step 3: When the data of the high-precision magnetic sensor does not exceed the threshold, the data is uploaded to the wireless gateway at a scheduled time, and then the separation layer wireless detection controller enters a dormant state, waiting for the wireless gateway to send a wake-up command;

[0073] Step 4: When the data from the high-precision magnetic sensor exceeds the threshold, the data is uploaded to the cloud platform in real time, and then the separation wireless detection controller enters a dormant state, waiting for the wireless gateway to send a wake-up command.

[0074] Furthermore, the magnetic sensor array is composed of multiple high-precision magnetic sensors, and the number of high-precision magnetic sensors in a single magnetic sensor array is no more than 16. The magnetic sensor array and a single magnetic sensor have a limited range. Multiple magnetic sensors are used in combination to expand the range of the entire magnetic sensor array to meet measurement requirements.

[0075] The high-precision magnetic sensors in the magnetic sensor array are arranged at equal intervals;

[0076] The magnetic sensor array has a length of not less than 200 mm and a width of not less than 10 mm;

[0077] The magnetic sensor array and the delamination wireless detection controller are connected by hard wire, which includes a power line, a signal line, a clock line, an address line and a ground line, and the outer layer of the signal line has a shielding layer.

[0078] Furthermore, the outer shell of the delamination wireless detection controller is provided with fixing holes, and the installation method is bolt fixing or magnetic suction installation;

[0079] The delamination wireless detection controller supports access to one or more magnetic sensor arrays.

[0080] Furthermore, the magnetic sensor array communicates with the main controller via I2C or SPI, and the wireless communication unit communicates with the main controller via UART or SPI.

[0081] Further, the method for measuring the angle of the delamination wireless detection controller is as shown in the attached Figure 5 As shown, the specific method is:

[0082] The magnetic sensor array in the delamination wireless detection controller simultaneously outputs the angle values ​​of the XY plane, XZ plane, and YZ plane. The angles α1 and α2 are output through the 16-bit ADC output algorithm. The displacement position of the magnet relative to the magnetic sensor array is obtained according to the trigonometric function relationship, and then the displacement position of the delamination wireless detection controller is obtained:

[0083]

[0084] L1=L0-L2

[0085] Wherein, L0 is the distance between the two magnetic sensors, L1 represents the horizontal component of the distance between the magnet and magnetic sensor 1, L2 represents the horizontal component of the distance between the magnet and magnetic sensor 2, and S1 represents the distance between the magnet and magnetic sensor 2.

[0086] The present invention aims to solve the problems of low reliability, poor stability and high cost of existing sensors during use, and provides a wireless detection system for delamination based on magnetic sensors. The present invention uses a wireless transmission method of a chain network to transmit data in a single-hop and multi-hop manner. The wireless chain network is a special wireless network topology with a unique transmission method. In this network, each node is connected in sequence to form a chain-like shape. Data transmission usually adopts a relay method. The signal starts from the source node and is transmitted to the next adjacent node one by one in the form of wireless communication. Each node carries the data of the previous node until it reaches the target node, completing the transmission of all node data.

[0087] The topology of the wireless chain network is clear and the connection between nodes is simple and linear. This structure makes the network planning and management relatively easy.

[0088] The data transmission path in the wireless chain network is fixed and is carried out in sequence according to the order of nodes. This feature facilitates network flow control and data management, and also makes it easy to troubleshoot and locate problems during transmission.

[0089] Each node not only needs to receive data from the previous node, but also needs to forward the data to the next node accurately, so it needs to have both receiving and forwarding functions. This places certain requirements on the hardware and software design of the node. The node needs to have sufficient processing power and stable wireless communication capabilities.

[0090] Those skilled in the art can clearly understand that the specific working processes of the systems, devices, modules and units described above can refer to the corresponding processes in the aforementioned method embodiments, and for the sake of brevity, they are not further described here.

[0091] In addition, the functional units in various embodiments of the present invention may be physically independent of each other, or two or more functional units may be integrated together, or all functional units may be integrated into one processing unit. The above integrated functional units may be implemented in the form of hardware, or in the form of software or firmware.

[0092] It can be understood by a person skilled in the art that if the integrated functional unit is implemented in the form of software and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on such an understanding, the technical solution of the present invention can be essentially or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, which includes several instructions to enable a computing device (such as a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the method described in each embodiment of the present invention when running the instructions. The aforementioned storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, and other media that can store program codes. Alternatively, all or part of the steps of the aforementioned method embodiment can be implemented by hardware related to program instructions (such as a computing device such as a personal computer, a server, or a network device), and the program instructions can be stored in a computer-readable storage medium. When the program instructions are executed by the processor of the computing device, the computing device executes all or part of the steps of the method described in each embodiment of the present invention.

[0093] 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 within the spirit and principles of the present invention, the technical solutions described in the aforementioned embodiments can still be modified, or some or all of the technical features therein can be replaced by equivalents. However, these modifications or replacements do not deviate from the protection scope of the present invention.

[0094] The contents not described in detail in the specification of the present invention belong to the prior art known to the professional and technical personnel in the field. Although the illustrative specific embodiments of the present invention are described above to facilitate the understanding of the present invention by the technical personnel in the field, it should be clear that the present invention is not limited to the scope of the specific embodiments. For the ordinary technical personnel in the field, as long as various changes are within the spirit and scope of the present invention defined and determined by the attached claims, these changes are obvious, and all inventions and creations using the concept of the present invention are protected.

[0095] The contents not described in detail in the specification of the present invention belong to the prior art known to the professional and technical personnel in the field. Although the illustrative specific embodiments of the present invention are described above to facilitate the understanding of the present invention by the technical personnel in the field, it should be clear that the present invention is not limited to the scope of the specific embodiments. For the ordinary technical personnel in the field, as long as various changes are within the spirit and scope of the present invention defined and determined by the attached claims, these changes are obvious, and all inventions and creations using the concept of the present invention are protected.

Claims

1. A wireless detection system for separation layer based on magnetic sensor, characterized in that: The system comprises a separation layer wireless detection controller (201), a wireless gateway (301), a cloud platform (401), a magnet (206), and a separation layer detection mechanism (101); The wireless gateway (301) is wirelessly connected to the separation layer wireless detection controller (201) and the cloud platform (401) respectively; The wireless gateway (301) is used to receive sensing data from the separation layer wireless detection controller (201) or send a wake-up instruction to the separation layer wireless detection controller (201); The delamination wireless detection controller (201) periodically sends or receives a wireless gateway wake-up signal and then sends data. The delamination wireless detection controller (201) collects displacement data of the current sensor location according to the timed wake-up instruction of the wireless gateway (301), and uploads the collected displacement data to the wireless gateway (301) in a chain network using a single-hop or multi-hop wireless communication method; the wireless gateway aggregates the data and uploads it to the cloud platform (401); The cloud platform (401) performs comprehensive analysis and judgment on the angle data uploaded by the wireless gateway (301).

2. A magnetic sensor-based desorption wireless detection system according to claim 1, characterized in that: The delamination wireless detection controller (201) comprises a main controller (202), a wireless communication unit (205), a magnetic sensor array (203), a battery (204), a wireless transmission circuit and a housing; The delamination detection structure (101) comprises a metal claw (102) and a claw telescopic structure (103).

3. A magnetic sensor-based desorption wireless detection system according to claim 2, characterized in that: The wireless gateway (301) comprises a main controller (302), a wireless communication unit (303), a 4G / 5G communication module (304), an ETH Ethernet communication module (305), a wireless transmission circuit and a housing; The wireless communication technology used by the wireless communication unit (303) includes at least one of Bluetooth, RFID, Lora, NB-IoT, 4G, 5G and star flash light; The data encoding format transmitted by the wireless communication technology includes a start bit, an address bit, a data bit and a check bit.

4. A magnetic sensor-based desorption wireless detection system according to claim 3, characterized in that: The delamination wireless detection controller or wireless gateway is arranged in a shell, the shell is made of polymer material, sealed with epoxy resin, and meets the IP65 protection level; The wireless transmission circuit of the wireless sensor device or the wireless gateway adopts a circuit board microstrip antenna and is connected to the respective main controllers through a feeder line.

5. A magnetic sensor-based desorption wireless detection system according to claim 4, characterized in that: A magnetic sensor array is arranged at the bottom of the mechanical part of the delamination wireless detection controller, a steel wire rope is provided above the magnetic sensor array, a magnet is fixed on the steel wire rope, the magnetic sensor array is installed by a structural member to a position parallel to the steel wire rope at the bottom of the delamination wireless detection controller, and the installation distance is 1 to 10 mm. The magnetic sensor array is connected to the delamination wireless detection controller through a hard wire, and the delamination wireless detection controller transmits the relevant displacement data to the cloud platform through wireless transmission by detecting and processing the displacement data of the magnet.

6. The magnetic sensor-based desorption wireless detection system according to claim 5, characterized in that: The working process of the delamination wireless detection controller is as follows: Step 1: After power-on, the system enters initialization, configures the working status of related modules, and then enters sleep mode. The separation layer wireless detection controller wakes up regularly, or the wireless gateway sends a wake-up command to the separation layer wireless detection controller to work; Step 2: After waking up, collect high-precision magnetic sensor data to determine whether the data exceeds the threshold; Step 3: When the data of the high-precision magnetic sensor does not exceed the threshold, the data is uploaded to the wireless gateway at a scheduled time, and then the separation layer wireless detection controller enters a dormant state, waiting for the wireless gateway to send a wake-up command; Step 4: When the data from the high-precision magnetic sensor exceeds the threshold, the data is uploaded to the cloud platform in real time, and then the separation wireless detection controller enters a dormant state, waiting for the wireless gateway to send a wake-up command.

7. A magnetic sensor-based desorption wireless detection system according to claim 6, characterized in that: The magnetic sensor array is composed of a plurality of high-precision magnetic sensors, and the number of high-precision magnetic sensors in a single magnetic sensor array is no more than 16; The high-precision magnetic sensors in the magnetic sensor array are arranged at equal intervals; The magnetic sensor array has a length of not less than 200 mm and a width of not less than 10 mm; The magnetic sensor array and the delamination wireless detection controller are connected by hard wire, which includes a power line, a signal line, a clock line, an address line and a ground line, and the outer layer of the signal line has a shielding layer.

8. The magnetic sensor-based desorption wireless detection system according to claim 7, characterized in that: The outer shell of the delamination wireless detection controller is provided with fixing holes, and the installation method is bolt fixing or magnetic suction installation; The delamination wireless detection controller supports access to one or more magnetic sensor arrays.

9. The magnetic sensor-based desorption wireless detection system according to claim 8, characterized in that: The magnetic sensor array communicates with the main controller via I2C or SPI, and the wireless communication unit communicates with the main controller via UART or SPI.

10. A magnetic sensor-based desorption wireless detection system according to claim 9, characterized in that: The method for measuring the angle of the separation layer wireless detection controller is: The magnetic sensor array in the delamination wireless detection controller simultaneously outputs the angle values ​​of the XY plane, XZ plane, and YZ plane. The angles α1 and α2 are output through the 16-bit ADC output algorithm. The displacement position of the magnet relative to the magnetic sensor array is obtained according to the trigonometric function relationship, and then the displacement position of the delamination wireless detection controller is obtained: L1=L0-L2 Wherein, L0 is the distance between the two magnetic sensors, L1 represents the horizontal component of the distance between the magnet and magnetic sensor 1, L2 represents the horizontal component of the distance between the magnet and magnetic sensor 2, and S1 represents the distance between the magnet and magnetic sensor 2.

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