WO2022057796A1

WO2022057796A1 - Train brake shoe abrasion detection device and detection method

Info

Publication number: WO2022057796A1
Application number: PCT/CN2021/118332
Authority: WO
Inventors: 孔令荣; 赖远桥; 傅霖煌; 杨跃胜; 成世毅; 陈晶
Original assignee: 深圳市远望谷信息技术股份有限公司
Priority date: 2020-09-15
Filing date: 2021-09-14
Publication date: 2022-03-24
Also published as: CN112211933A

Abstract

A train brake shoe abrasion detection device and detection method. The detection device comprises a brake shoe abrasion detection electronic tag (10) mounted on a train brake shoe (60), an RFID reader/writer (20) mounted on the ground, and a ground train monitoring system (30); the brake shoe abrasion detection electronic tag (10) detects the degree of abrasion of a brake shoe friction block (61) by detecting a change in the thickness of the brake shoe friction block (61), and transmits a detection result to the RFID reader/writer (20) in a wireless transmission manner; and the RFID reader/writer (20) is connected to the ground train monitoring system (30).

Description

A kind of train brake shoe wear detection device and detection method

This application claims the priority of the Chinese patent application with the application number 202010967338.X and the invention title "A train brake shoe wear detection device and detection method", which was filed in the China Patent Office on September 15, 2020, all of which are The contents are incorporated herein by reference.

technical field

The application belongs to the technical field of train brake shoes, and in particular relates to a train brake shoe wear detection device and a detection method.

Background technique

The brake shoe is a brake part that directly rubs the wheels to stop the train when the train is running and braking. It is a shoe-shaped brake block made of cast iron or other materials. The friction between the wheels stops the wheels from turning. When friction occurs between the wheel and the brake shoe, the temperature of the wheel and the brake shoe will increase, and the surface of the friction block of the brake shoe will be worn. security risks.

At this stage, the wear degree of the train brake shoe is marked on the friction block. When the train stops, it is not only time-consuming and laborious to check whether the brake shoe needs to be replaced by manual observation, but also has visual errors. Cause friction block waste or safety hazards.

technical problem

One of the purposes of the embodiments of the present application is to provide a train brake shoe wear detection device and detection method, which aims to solve the problem in the prior art that checking whether the brake shoe needs to be replaced by manual observation is not only time-consuming and laborious, but also has visual errors. , the wear degree of the friction block after replacement is also different, resulting in a technical problem of waste of friction block or hidden safety hazards.

technical solutions

In order to solve the above-mentioned technical problems, the technical solutions adopted in the embodiments of the present application are:

A first aspect of the embodiments of the present application provides a train brake shoe wear detection device, including a brake shoe wear detection electronic label installed on the train brake shoe, an RFID reader installed on the ground, and a brake shoe wear detection function compatible. Ground train monitoring system, the brake shoe wear detection electronic tag can be activated by the RFID reader, and the activated brake shoe wear detection electronic tag detects the friction of the brake shoe by detecting the change in the thickness of the friction block of the brake shoe The wear degree of the block, and the detection result including the wear degree is transmitted to the RFID reader, the RFID reader is connected to the ground train monitoring system, and the detection result is transmitted to the ground Train monitoring system.

A second aspect of the embodiments of the present application provides a method for detecting wear of a train brake shoe, including:

When the brake shoe wear detection electronic label enters the electromagnetic field area of the antenna of the RFID reader installed on the ground, the brake shoe wear detection electronic label is activated, detects the wear degree of the brake shoe friction block, and transmits the detection result. To the RFID reader/writer installed on the ground, the RFID reader/writer transmits the detection result to the ground train monitoring system, and performs real-time monitoring and early warning of brake shoe wear.

A third aspect of the embodiments of the present application provides a terminal device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, when the processor executes the computer program accomplish:

When the brake shoe wear detection electronic tag enters the electromagnetic field area of the antenna of the RFID reader installed on the ground, the brake shoe wear detection electronic label is activated, detects the wear degree of the brake shoe friction block, and transmits the detection result to the installation. The RFID reader on the ground, the RFID reader transmits the detection results to the ground train monitoring system, and performs real-time monitoring and early warning of brake shoe wear.

A fourth aspect of the embodiments of the present application provides a computer-readable storage medium, where the computer-readable storage medium stores a computer program, and the computer program is executed by a processor to implement:

A fifth aspect of the embodiments of the present application further provides a computer program product, which, when the computer program product runs on a terminal device, enables the terminal device to implement:

beneficial effect

Compared with the prior art, the embodiments of the present application include the following advantages:

In the embodiment of the present application, through the above solution, the wear of the train brake shoes can be monitored in real time, and the brake shoes that complete the life cycle can be replaced in time. Compared with the manual visual inspection of the brake shoe wear, the efficiency of the workers is not only improved, but also the purpose is prevented. Depending on the occurrence of errors, the automatic management of train brake shoe wear inspection and the traceability management of brake shoe replacement are realized, reducing brake shoe waste, improving train operation safety and reducing operating costs.

Description of drawings

In order to illustrate the technical solutions in the embodiments of the present application more clearly, the following briefly introduces the accompanying drawings that are used in the description of the embodiments or exemplary technologies. Obviously, the drawings in the following description are only for the present application. In some embodiments, for those of ordinary skill in the art, other drawings can also be obtained according to these drawings without any creative effort.

FIG. 1 is a schematic diagram of a train brake shoe wear detection device of the present application.

FIG. 2 is a schematic structural diagram of a train brake shoe of a train brake shoe wear detection device of the present application.

Embodiments of the present invention

In the following description, for the purpose of illustration rather than limitation, specific details such as a specific system structure and technology are set forth in order to provide a thorough understanding of the embodiments of the present application. However, it will be apparent to those skilled in the art that the present application may be practiced in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present application with unnecessary detail.

It is to be understood that, when used in this specification and the appended claims, the term "comprising" indicates the presence of the described feature, integer, step, operation, element and/or component, but does not exclude one or more other The presence or addition of features, integers, steps, operations, elements, components and/or sets thereof.

In addition, in the description of the specification of the present application and the appended claims, the terms "first", "second", "third", etc. are only used to distinguish the description, and should not be construed as indicating or implying relative importance.

The present application will be further described below with reference to the description of the drawings and specific embodiments.

As shown in FIG. 1 , a train brake shoe wear detection device provided by the present application includes a passive UHF RFID brake shoe wear detection electronic tag 10 installed on the train brake shoe, and an RFID reader 20 installed on the ground and compatible The ground train monitoring system 30 with brake shoe wear detection function; the passive UHF RFID brake shoe wear detection electronic tag 10 includes a plurality of position detection wires 13 for brake shoe wear detection, a common wire 14 and a detection wire interface and a common wire The passive UHF RFID tag chip 11 and the tag antenna 12 of the line interface, each position detection wire 13 and the common wire 14 are respectively connected to the detection line interface and the common wire interface of the passive UHF RFID tag chip 11, and the tag antenna 12 is connected to the wireless interface. The antenna connection port of the source UHF RFID tag chip 11. Each position detection wire 13 is short-circuited and electrically connected to the common wire 14 at the end, each position detection wire 13 is arranged in a specific shape, and the ends are distributed at the minimum wear point 15 and the maximum wear point 16 perpendicular to the friction surface of the brake shoe In between, the distances from the ends of all the position detection wires 13 to the friction surface are arranged in sequence, they form an oblique line and are connected with the common wire 14, and are fixed on a specific position of the friction block of the train brake shoe. The passive UHF RFID tag chip 11 can detect the connection state of each position detection wire 13 and the common wire 14. When it detects that a certain position detection wire 13 is disconnected from the common wire 14, it indicates that the position detection wire 13 is connected to the common wire 14. The brake shoe at the connection point position of the wire 14 is worn out. If it is detected that multiple position detection wires 13 are disconnected, it indicates that the brake shoe at the connection point position of the wire is worn out. The connection state of these position detection wires 13 and the common wire 14 can indicate the degree of wear of the brake shoe friction block, so the passive UHF RFID brake shoe wear detection electronic tag 10 can detect the change of the thickness of the brake shoe friction block and the wear of the brake shoe friction block. degree of wear. The wear position 17 corresponding to the minimum wear point 15 is the minimum wear concerned by the system; the wear position 18 corresponding to the maximum wear point 16 is the maximum wear concerned by the system. When the friction block reaches the maximum wear, the brake shoe must be replaced. When the passive UHF RFID brake shoe wear detection electronic tag 10 enters the antenna electromagnetic field area of the RFID reader/writer 20 installed on the ground, the passive UHF RFID brake shoe wear detection electronic tag 10 is activated to detect the brake shoe friction block. and then transmit the information such as the label TID code or EPC code representing the installation position or identity information of the brake shoe and the current position detection wire connection state detection result to the RFID reader 20 on the ground, and each data passes through the communication network 40. Finally, it is transmitted to the ground train monitoring system 30, so that the ground train monitoring system 30 can timely and accurately know the wear degree of the friction block of the brake shoe, send an alarm message to the brake shoe with serious wear in time, and carry out the inspection on the brake shoe that exceeds the wear tolerance limit. Call the police and arrange for a replacement.

Further, the passive UHF The working frequency band of the RFID brake shoe wear detection electronic tag 10 and the RFID reader/writer installed on the ground is the UHF frequency band, which has a long reading and writing distance, and RFID electronic tags of other working frequency bands can also be used. The communication protocol includes but is not limited to UHF. Various communication protocol standards of RFID and self-defined communication protocols, RFID electronic tags can receive the instructions of the RFID reader and respond to the instructions to perform wear detection and tag reading and writing operations and return various data.

As a further improvement of the present application, the brake shoe wear detection electronic label includes a wear detection wire, a label chip with a detection wire interface, and a label antenna, the wear detection wire is connected to the detection wire interface of the label chip, and the The tag antenna is connected to the antenna connection port of the tag chip, the wear detection line is close to the wear surface of the brake shoe friction block, and the tag antenna is far away from the wear surface of the brake shoe friction block, which can ensure friction in the brake shoe. The tag antenna cannot be damaged under the maximum wear state of the block.

As a further improvement of the present application, the wear detection wire includes at least one position detection wire and a common wire, and each position detection wire is short-circuited and electrically connected to the common wire at the end close to the wear surface of the brake shoe friction block. The tag chip detects the connection state of each position detection wire at its end with the common wire, and when it detects that a position detection wire is disconnected from the common wire, it indicates that the position detection wire is connected to the common wire. The brake shoe friction pad at the point position is worn out.

As a further improvement of this application, in order to obtain detailed wear detection conditions, multiple position detection wires for wear detection can be set, and the maximum number of position detection wires is set based on the number of position detection ports supported by the chip; each position detection wire The wire is short-circuited and electrically connected to the common wire at the end. Each position detection wire is arranged in a specific shape, distributed between the minimum wear point and the maximum wear point perpendicular to the friction surface of the brake shoe, and fixed on the friction surface of the train brake shoe. at a specific location in the block.

As a further improvement of the present application, there are multiple wear detection lines and are arranged in parallel, and the lengths of the wear detection lines are successively reduced.

As a further improvement of the present application, the wear detection line is perpendicular to the wear surface of the brake shoe friction block, and the connection point between the position detection wire and the common wire and the wear surface of the brake shoe friction block The distance increases sequentially.

As a further improvement of the present application, the connection points of the position detection wire and the common wire are evenly distributed between the minimum wear point and the maximum wear point of the brake shoe friction block.

As shown in FIG. 2 , the train brake shoe wear detection device provided by the present application is located on the brake shoe 60 around the train wheel 50, wherein the brake shoe module 60 includes a friction block 61, an armature brake arm 62, and a passive UHF RFID brake shoe wear The electronic label 10 is detected, the friction block 61 is firmly installed on the armature brake arm 62, and the armature brake arm 62 is connected with the train pneumatic device. When braking, the brake shoe hugs the wheel, and the train is rubbed against the wheel through the friction block. The passive UHF RFID brake shoe wear detection electronic tag 10 is installed on the bottom surface 63 or the side surface of the friction block 61. The arc surface of the friction block 61 in contact with the wheel 50 is the wear surface 64, and the vertical direction of the wear surface is the wear direction, as shown in Figure 2 The direction indicated by the arrow on the mid bottom surface 63 is the wear direction. The position detection wire 13 used for wear detection in the electronic tag is also called a wear detection line. The position detection wire of the electronic tag is close to the wear surface 64, but the antenna of the electronic tag needs to be far away from the wear surface 64 and close to the armature brake arm 62 to ensure that the tag antenna cannot be damaged under the maximum wear state of the brake shoe friction block 61.

The embodiment of the present application also provides a method for detecting the wear of a train brake shoe. When the train is running at a high speed, when the passive UHF RFID brake shoe wear detection electronic tag 10 passes through the electromagnetic field area emitted by the RFID reader/writer 20 installed on the ground, the passive The UHF RFID tag chip 11 is activated, detects the connection state of the position detection wire 13, and then transmits data such as the label TID code or EPC code representing the installation position or identity information of the brake shoe and the current position detection wire 13 connection state detection result and other data For the RFID reader 20 on the ground, various data are finally transmitted to the ground train monitoring system 30, so that the ground train monitoring system 30 can timely and accurately know the wear degree of the friction block of the brake shoe, and issue an alarm in time for the brake shoe with serious wear. information, and alarm and arrange replacement of brake shoes exceeding the wear tolerance limit to ensure the safe operation of the train.

The present application proposes a train brake shoe wear detection device and a detection method for monitoring the wear degree of the friction block of the train brake shoe in real time. In the control room, if the wear value of the friction block of the brake shoe reaches the limit value of the replacement brake shoe, an alarm signal will be issued, and personnel will be arranged to replace the scrapped brake shoe in time, which greatly ensures the safety of the train.

The present application provides a train brake shoe wear detection device and a detection method, which improves the wear detection accuracy, improves the intelligence of the train, and reduces the running cost.

The present application provides a train brake shoe wear detection device and detection method. By using the RFID wireless transmission technology, the train brake shoe wear condition can be monitored in real time, the brake shoe that has completed its life cycle can be replaced in time, and the brake shoe wear can be checked with manual visual inspection. In comparison, it not only improves the efficiency of workers, but also prevents the occurrence of visual errors, realizes automatic management of train brake shoe wear inspection and brake shoe replacement traceability management, reduces brake shoe waste, improves train operation safety and reduces operating costs. .

The present application proposes a terminal device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements when executing the computer program:

As a further improvement of the present application, the brake shoe wear detection electronic label includes a wear detection wire, a label chip with a detection wire interface, and a label antenna, the wear detection wire is connected to the detection wire interface of the label chip, and the The tag antenna is connected to the antenna connection port of the tag chip; when the processor executes the computer program, the processor further implements:

When the brake shoe wear detection electronic tag passes through the electromagnetic field area emitted by the RFID reader/writer installed on the ground, the tag antenna is used to receive the electromagnetic wave energy emitted by the RFID reader/writer, and convert the electromagnetic wave energy into The energy required for the label chip to work, activate the label chip; the activated label chip is used for real-time detection of the connection status of each position detection wire and the common wire, and will represent the installation position or identity information of the brake shoe. The detection result of the tag TID code or EPC code and the connection state of the currently detected position detection line is transmitted to the RFID reader; the RFID reader is used to transmit the detection result to the ground train monitoring system, the The ground train monitoring system is used to obtain the wear degree of the brake shoe friction block according to the detection result, send an alarm message to the brake shoe with serious wear, and alarm and replace the brake shoe that exceeds the wear tolerance limit.

As a further improvement of the present application, when the processor executes the computer program, it also implements:

A plurality of position detection wires used for brake shoe wear detection are sequentially fixed at different positions in the vertical direction to the friction surface of the brake shoe. The shorter the position detection wire, the farther its end is away from the friction surface, and the later it will be worn and disconnected; the longest position detection wire end is closest to the wear surface, which is the minimum wear point concerned by the ground train control system, and the shortest position The end of the detection wire is the maximum tolerable wear position, that is, the maximum wear point. Once the position detection wire of the maximum wear point is cut off from the connection with the common wire, the brake shoe must be replaced, and the remaining position detection wires are distributed at the minimum wear point. Between the point of maximum wear and the point of maximum wear, the distances from the ends of all the position detection wires to the friction surface gradually increase.

The present application proposes a computer-readable storage medium, where a computer program is stored in the computer-readable storage medium, wherein, when the computer program is executed by a processor, the following is realized:

As a further improvement of the present application, the brake shoe wear detection electronic label includes a wear detection wire, a label chip with a detection wire interface, and a label antenna, the wear detection wire is connected to the detection wire interface of the label chip, and the The tag antenna is connected to the antenna connection port of the tag chip; when the computer program is executed by the processor, it realizes:

When the brake shoe wear detection electronic tag passes through the electromagnetic field area emitted by the RFID reader/writer installed on the ground, the tag antenna is used to receive the electromagnetic wave energy emitted by the RFID reader/writer, and convert the electromagnetic wave energy into The energy required for the label chip to work, activate the label chip; the activated label chip is used for real-time detection of the connection status of each position detection wire and the common wire, and will represent the installation position or identity information of the brake shoe. The detection result of the tag TID code or EPC code and the connection state of the currently detected position detection line is transmitted to the RFID reader; the RFID reader is used to transmit the detection result to the ground train monitoring system, the The ground train monitoring system is used to obtain the wear degree of the friction block of the brake shoe according to the detection result, and to issue an alarm message to the brake shoe with serious wear, and to alarm and replace the brake shoe that exceeds the wear tolerance limit.

As a further improvement of the present application, when the computer program is executed by the processor, it realizes:

Exemplarily, a computer program can be divided into one or more units, one or more units are stored in a memory, and executed by a processor to complete the present application. One or more units may be a series of computer program instruction segments capable of performing specific functions, and the instruction segments are used to describe the execution process of the computer program in the terminal device.

The computer-readable storage medium may be an internal storage unit of the terminal device described in the foregoing embodiments, such as a hard disk or a memory of the terminal device. The computer-readable storage medium may be non-volatile or volatile. The computer-readable storage medium may also be an external storage device of the terminal device, for example, a plug-in hard disk, a secure digital (Secure Digital, SD) card, a flash memory card (Flash Card), etc. equipped on the terminal device.

The terminal device may include, but is not limited to, a processor and a memory. Those skilled in the art can understand that a terminal device may include an input and output device, a network access device, a bus, and the like.

The processor may be a central processing unit, or other general-purpose processors, digital signal processors, application-specific integrated circuits, off-the-shelf programmable gate arrays or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. . A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.

The memory may be an internal storage unit of the terminal device, such as a hard disk or memory of the terminal device. The memory may also be an external storage device of the terminal device, such as a plug-in hard disk, a smart memory card, a flash memory card, etc., which are equipped on the terminal device. Further, the memory may also include both an internal storage unit of the terminal device and an external storage device.

The above content is a further detailed description of the present application in conjunction with specific preferred embodiments, and it cannot be considered that the specific implementation of the present application is limited to these descriptions. For those of ordinary skill in the technical field of the present application, without departing from the concept of the present application, some simple deductions or substitutions can be made, which should be regarded as belonging to the protection scope of the present application.

Claims

A train brake shoe wear detection device, which includes a brake shoe wear detection electronic label installed on the train brake shoe, an RFID reader installed on the ground, and a ground train monitoring system compatible with the brake shoe wear detection function. The shoe wear detection electronic tag can be activated by the RFID reader, and the activated brake shoe wear detection electronic tag detects the wear degree of the brake shoe friction block by detecting the change in the thickness of the brake shoe friction block, and will include The detection result of the degree of wear is transmitted to the RFID reader, and the RFID reader is connected to the ground train monitoring system, and transmits the detection result to the ground train monitoring system.
The train brake shoe wear detection device according to claim 1, wherein the brake shoe wear detection electronic label is a passive UHF RFID brake shoe wear detection electronic label.
The train brake shoe wear detection device according to claim 1, wherein the brake shoe wear detection electronic label comprises a wear detection line, a label chip with a detection line interface, and a label antenna, and the wear detection line is connected to the The detection line interface of the tag chip, the tag antenna is connected to the antenna connection port of the tag chip, the wear detection line is close to the wear surface of the brake shoe friction block, and the tag antenna is far away from the brake shoe friction block. Wear surface.
The train brake shoe wear detection device according to claim 3, wherein the wear detection wire comprises at least one position detection wire and a common wire, and each position detection wire is at the end of the wear surface close to the brake shoe friction block Short-circuit electrical connection with the common wire, and detect the connection state of each position detection wire at its end with the common wire through the tag chip, when it is detected that a certain position detection wire is disconnected from the common wire, It means that the brake shoe friction block at the connection point between the position detection wire and the common wire is worn out.
The apparatus for detecting wear of a train brake shoe according to claim 4, wherein a plurality of the wear detection lines are arranged in parallel, and the lengths of the wear detection lines are successively reduced.
The apparatus for detecting wear of a train brake shoe according to claim 4, wherein the wear detection line is perpendicular to the wear surface of the brake shoe friction block, and the connection point of the position detection wire and the common wire is connected to the brake shoe. The distance between the wear surfaces of the shoe friction block becomes larger in turn.
The train brake shoe wear detection device according to claim 6, wherein the connection points of the position detection wire and the common wire are evenly distributed between the minimum wear point and the maximum wear point of the brake shoe friction block.
A train brake shoe wear detection method, wherein, based on the train brake shoe wear detection device according to claims 1 to 7, the following processes are performed:

When the brake shoe wear detection electronic label enters the electromagnetic field area of the antenna of the RFID reader installed on the ground, the brake shoe wear detection electronic label is activated, detects the wear degree of the brake shoe friction block, and transmits the detection result. To the RFID reader/writer installed on the ground, the RFID reader/writer transmits the detection result to the ground train monitoring system, and performs real-time monitoring and early warning of brake shoe wear.
A train brake shoe wear detection method, wherein, based on the train brake shoe wear detection device according to claims 1 to 7, the following processes are performed:

When the brake shoe wear detection electronic tag passes through the electromagnetic field area emitted by the RFID reader/writer installed on the ground, the tag antenna is used to receive the electromagnetic wave energy emitted by the RFID reader/writer, and convert the electromagnetic wave energy into The energy required for the label chip to work, activate the label chip; the activated label chip is used for real-time detection of the connection status of each position detection wire and the common wire, and will represent the installation position or identity information of the brake shoe. The detection result of the tag TID code or EPC code and the connection state of the currently detected position detection line is transmitted to the RFID reader; the RFID reader is used to transmit the detection result to the ground train monitoring system, the The ground train monitoring system is used to obtain the wear degree of the brake shoe friction block according to the detection result, send an alarm message to the brake shoe with serious wear, and alarm and replace the brake shoe that exceeds the wear tolerance limit.
The method for detecting wear of a train brake shoe according to claim 9, wherein a plurality of position detection wires used for brake shoe wear detection are sequentially fixed at different positions perpendicular to the friction surface of the brake shoe, and the longer the position detection wire, the The closer its end is to the friction surface, the sooner it will be worn and disconnected. The shorter the position detection wire, the farther its end is away from the friction surface, and the later it will be disconnected by wear; the longest position detection wire end is closest to the wear surface, It is the minimum wear point concerned by the ground train control system. The end of the shortest position detection wire is the maximum tolerated wear position, that is, the maximum wear point. Once the position detection wire of the maximum wear point is cut off from the connection with the common wire, it must be The brake shoe is replaced, and the remaining position detection wires are distributed between the minimum wear point and the maximum wear point, and the distances from the ends of all position detection wires to the friction surface increase sequentially.
A terminal device, comprising a memory, a processor, and a computer program stored in the memory and running on the processor, wherein the processor implements when the processor executes the computer program:

When the brake shoe wear detection electronic tag enters the electromagnetic field area of the antenna of the RFID reader installed on the ground, the brake shoe wear detection electronic label is activated, detects the wear degree of the brake shoe friction block, and transmits the detection result to the installation. The RFID reader on the ground, the RFID reader transmits the detection results to the ground train monitoring system, and performs real-time monitoring and early warning of brake shoe wear.
The terminal device according to claim 11, wherein the brake shoe wear detection electronic label comprises a wear detection line, a label chip with a detection line interface and a label antenna, and the wear detection line is connected to the detection of the label chip line interface, the tag antenna is connected to the antenna connection port of the tag chip; when the processor executes the computer program, it also implements:

When the brake shoe wear detection electronic tag passes through the electromagnetic field area emitted by the RFID reader/writer installed on the ground, the tag antenna is used to receive the electromagnetic wave energy emitted by the RFID reader/writer, and convert the electromagnetic wave energy into The energy required for the label chip to work, activate the label chip; the activated label chip is used for real-time detection of the connection status of each position detection wire and the common wire, and will represent the installation position or identity information of the brake shoe. The detection result of the tag TID code or EPC code and the connection state of the currently detected position detection line is transmitted to the RFID reader; the RFID reader is used to transmit the detection result to the ground train monitoring system, the The ground train monitoring system is used to obtain the wear degree of the brake shoe friction block according to the detection result, send an alarm message to the brake shoe with serious wear, and alarm and replace the brake shoe that exceeds the wear tolerance limit.
The terminal device according to claim 12, wherein when the processor executes the computer program, it further implements:

A plurality of position detection wires used for brake shoe wear detection are sequentially fixed at different positions in the vertical direction to the friction surface of the brake shoe. The shorter the position detection wire, the farther its end is away from the friction surface, and the later it will be worn and disconnected; the longest position detection wire end is closest to the wear surface, which is the minimum wear point concerned by the ground train control system, and the shortest position The end of the detection wire is the maximum tolerable wear position, that is, the maximum wear point. Once the position detection wire of the maximum wear point is cut off from the connection with the common wire, the brake shoe must be replaced, and the remaining position detection wires are distributed at the minimum wear point. Between the point of maximum wear and the point of maximum wear, the distances from the ends of all the position detection wires to the friction surface gradually increase.
A computer-readable storage medium storing a computer program, wherein the computer program is executed by a processor to realize:

When the brake shoe wear detection electronic tag enters the electromagnetic field area of the antenna of the RFID reader installed on the ground, the brake shoe wear detection electronic label is activated, detects the wear degree of the brake shoe friction block, and transmits the detection result to the installation. The RFID reader on the ground, the RFID reader transmits the detection results to the ground train monitoring system, and performs real-time monitoring and early warning of brake shoe wear.
The computer-readable storage medium of claim 14, wherein the brake shoe wear detection electronic label comprises a wear detection line, a label chip with a detection line interface, and a label antenna, and the wear detection line is connected to the label The detection line interface of the chip, the tag antenna is connected to the antenna connection port of the tag chip; the computer program is implemented by the processor when it is executed:

When the brake shoe wear detection electronic tag passes through the electromagnetic field area emitted by the RFID reader/writer installed on the ground, the tag antenna is used to receive the electromagnetic wave energy emitted by the RFID reader/writer, and convert the electromagnetic wave energy into The energy required for the label chip to work, activate the label chip; the activated label chip is used for real-time detection of the connection status of each position detection wire and the common wire, and will represent the installation position or identity information of the brake shoe. The detection result of the tag TID code or EPC code and the connection state of the currently detected position detection line is transmitted to the RFID reader; the RFID reader is used to transmit the detection result to the ground train monitoring system, the The ground train monitoring system is used to obtain the wear degree of the brake shoe friction block according to the detection result, send an alarm message to the brake shoe with serious wear, and alarm and replace the brake shoe that exceeds the wear tolerance limit.