Design method of universal transponder message read-write tool

Abstract

The universal transponder message read-write tool designed by the design method comprises a management unit and an execution unit, the management unit has the functions of providing a human-computer interface for a user, importing message files of each manufacturer, interacting message information with the execution unit and message information actually read from a transponder, and comparing the consistency of a written message and an actually read message; and the execution unit has the functions of receiving an operation instruction of the management unit, processing a message to be written according to the requirements of a transponder A5 interface of each manufacturer, enabling a corresponding radio frequency antenna unit, controlling the message writing and message reading processes, and sending radio frequency energy to an external transponder. The invention designs and develops a universal transponder message read-write tool which is realized based on a version of software and hardware and is compatible with transponder A5 interfaces of all manufacturers, so as to integrate special transponder message read-write tools of all manufacturers, reduce the types of the message read-write tools of each path of bureau electric service section, and improve the field operation efficiency of the transponder.

Description

Technical Field

[0001] The present invention relates to the field of train control in the railway industry. A universal transponder message reading and writing tool based on a software and hardware version is compatible with message reading and writing operations of transponder products of all existing manufacturers in the railway industry. Background Art

[0002] As a component of the ground equipment of the railway train control system, the balise is responsible for transmitting train control data to the onboard equipment of the train control system. With the increase of high-speed rail networks, the number of balises used in the national railway network has exceeded 300,000, and there are currently 9 manufacturers providing balise products.

[0003] Due to the lack of unified standards for message reading and writing interfaces, the functional implementations of the relevant message reading and writing interfaces (hereinafter referred to as A5 interfaces) inside transponders of various manufacturers vary greatly, and the corresponding transponder message reading and writing tools also differ in the implementation of the above functions.

[0004] Tables 1 and 2 summarize the technical parameters of the A5 interfaces of all manufacturers' transponders in terms of hardware and protocol. From the data, it can be seen that from the hardware perspective, the antenna shape, antenna size, and signal transmission power of the A5 interfaces of various manufacturers are different; from the protocol perspective, the communication signal frequency, modulation method and modulation depth, signal format, communication rate and other parameters are also different.

[0005] Table 1 Summary of 9M hardware physical parameters of transponders of various manufacturers

[0006]

[0007] Table 2 Summary of A5 interface protocol parameters of transponders of various manufacturers and models

[0008] Protocol parameters Numeric frequency 9M, 27M Modulation Depth 50～100％ Signal format UART, DBPL, bit width encoding rate 1.75~180kbps

[0009] In the actual application of the electrical service section of each railway bureau, due to the differences in the hardware and protocols of the A5 interface of each transponder, each manufacturer's transponder message reading and writing tools are not compatible with other models of transponder A5 interfaces. The maintenance of transponder messages must rely on special reading and writing tools provided by multiple manufacturers, which will inevitably lead to low efficiency of on-site operation and maintenance work, a wide variety of spare parts warehouses, and a certain probability of use risk. Therefore, it is an urgent task for the current on-site operation and maintenance of transponders to design a transponder message reading and writing tool that can be compatible with the transponder message reading and writing functions of all manufacturers and improve the efficiency of on-site transponder message operation and maintenance. Summary of the invention

[0010] Based on a comprehensive analysis of the technical characteristics of all models of transponder message reading and writing tools of national railway transponder product providers, the present invention proposes a transponder message reading and writing tool based on a version of software and hardware. Through compatible product architecture and software and hardware configuration, it is compatible with the A5 interface of transponders of all manufacturers and realizes the writing and reading functions of transponder messages of all manufacturers.

[0011] The present invention provides a design method for a universal transponder message reading and writing tool, wherein the universal transponder message reading and writing tool comprises two parts: a management unit and an execution unit;

[0012] The functions of the management unit include providing a human-machine interface to the user, importing message files from various manufacturers, exchanging message information with the execution unit and the message information actually read from the transponder, and comparing the consistency of the written message and the actually read message;

[0013] The functions of the execution unit include receiving the operation instructions of the management unit, processing the message to be written according to the requirements of the A5 interface of each manufacturer's transponder, enabling the corresponding radio frequency antenna unit, controlling the process of message writing and message reading, and sending radio frequency energy to the external transponder;

[0014] The execution unit includes a communication module, an encoding module, a demodulation module, a control module, and an antenna module.

[0015] The main function of the communication module is to communicate with the management unit and complete the data exchange between the management unit and the execution unit modules;

[0016] The encoding module integrates the data encoding, signal modulation and protocol encoding required by the A5 interface protocol of each manufacturer's transponder; the encoding module matches the corresponding protocol processing part in the encoding module according to the manufacturer information sent by the communication module, and organizes the target transponder message into the data format required by the A5 interface of each transponder;

[0017] The main function of the demodulation module is to sort out and send the transponder uplink modulation signal sent by the antenna module to the subsequent logic components;

[0018] The control module selects appropriate antenna hardware, controls the antenna's transmission power, controls the modulation depth of the A5 interface signal, and sends the corresponding symbol data to the target transponder according to the manufacturer information of the target transponder, thereby completing the requirement of writing the message to the target transponder;

[0019] The main function of the antenna module is to send the correct A5 interface signal energy and data to transponders from different manufacturers.

[0020] The present invention designs and develops a universal transponder message reading and writing tool based on a version of software and hardware, which is compatible with the A5 interface of transponders of all manufacturers, so as to integrate the dedicated transponder message reading and writing tools of all manufacturers, reduce the types of message reading and writing tools in the electrical service sections of each railway bureau, and improve the efficiency of transponder on-site operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 Schematic diagram of the system composition of the universal transponder message reading and writing tool

[0022] Figure 2 Functional structure diagram of the management unit

[0023] Figure 3 Functional structure diagram of the execution unit

[0024] Figure 4 Functional block diagram of the control module DETAILED DESCRIPTION

[0025] The present invention is described in detail below in conjunction with specific embodiments. The following embodiments will help those skilled in the art to further understand the present invention, but are not intended to limit the present invention in any form. It should be noted that, for those of ordinary skill in the art, several variations and improvements may be made without departing from the inventive concept, and these all belong to the protection scope of the present invention.

[0026] The universal transponder message reading and writing tool of the present invention is composed of two parts: a management unit and an execution unit. The product structure block diagram is shown in FIG. Figure 1 As shown, the message files of each manufacturer are obtained from the external device through the data download interface, and the external transponder is connected through the A1, A4, and A5 interfaces, where the A1 and A4 interfaces are transponder message reading interfaces, and A5 is the transponder message writing interface. The instruction interface between the management unit and the execution unit is connected through wireless communication.

[0027] The management unit uses a general host computer development platform as the hardware platform and a conventional operating system as the software development platform. The management unit uses a PDA or tablet computer as a platform to complete function development, uses a common operating system, completes functions such as downloading and managing message files to be burned, inputs user operation instructions through a human-machine interface, and completes communication with the execution unit (including operation instructions and receiving return data).

[0028] The main functions of the management unit include providing a human-machine interface to users, importing message files from various manufacturers, exchanging message information with the execution unit and the message information actually read from the transponder, comparing the consistency of written messages and actually read messages, etc.

[0029] The execution unit is composed of a logic component + a radio frequency antenna. Its main functions include receiving operation instructions from the management unit, processing the message to be written according to the requirements of the A5 interface of each manufacturer's transponder (including data encoding, signal modulation, and protocol encoding), enabling the corresponding radio frequency antenna unit, controlling the process of message writing and reading, and sending radio frequency energy to the external transponder.

[0030] The specific functions of the management unit are as follows: Figure 2 As shown, it includes a display module connected to the human-machine interface, a message storage module connected to the data download interface, a communication module connected to the instruction interface, and a process control module for the entire software function.

[0031] The main functions of the snap-in include:

[0032] 1) The operator logs in through the password on the human-machine interface of the display module and obtains the permission to use different tools;

[0033] 2) Obtain the transponder message file from the external device through the data download interface, verify the legitimacy of the file data, and store it in the message storage module;

[0034] 3) The management unit provides the user with various transponder operation options through a human-computer interaction interface;

[0035] 4) Extract the user messages and transmission messages contained in the message files of each manufacturer;

[0036] 5) Through the command interface, the communication module sends the message to be written and the manufacturer information of the transponder to be written to the execution unit. The execution unit matches the corresponding antenna module according to the manufacturer information, selects the corresponding transponder A5 interface communication protocol, and sends the message to be written to the target transponder.

[0037] 6) Receive the message writing result from the execution unit, and after confirming that the writing is completed, send a transponder message reading instruction to the execution unit;

[0038] 7) Receive the message reading result of the execution unit and compare and verify it with the target written message;

[0039] 8) The human-machine interface displays whether the message writing is successful.

[0040] The specific functional implementation and block diagram of the execution unit are as follows: Figure 3 As shown, it includes a communication module, an encoding module, a demodulation module, a control module, and an antenna module.

[0041] The main function of the communication module is to communicate with the management unit and complete the data exchange between the management unit and the execution unit modules, including:

[0042] 1) Parse the data frame of the command interface according to the internal protocol;

[0043] 2) Extract the message writing and reading instructions sent by the management unit through the command interface;

[0044] 3) extracting the valid transmission message information and the manufacturer information of the target transponder in the management unit message writing instruction, and sending them to the encoding module and the control module;

[0045] 4) Sending the message writing result and message reading result of the execution unit to the management unit through the instruction interface;

[0046] The encoding module is an important module for software adaptation to the A5 interface of each manufacturer's transponder. Compared with the existing dedicated transponder message reading and writing tools, the encoding module of the universal transponder message reading and writing tool integrates the data encoding, signal modulation and protocol encoding required by the A5 interface protocol of each manufacturer's transponder. The encoding module matches the corresponding protocol processing part in the encoding module according to the manufacturer information sent by the communication module, organizes the target transponder message into the data format required by the A5 interface of each transponder, and can match the corresponding manufacturer's transponder A5 interface protocol part. The main functions include:

[0047] 1) Select different encoding processes according to the transponder manufacturer information sent by the communication module;

[0048] 2) Generate signal frequencies that adapt to the A5 interfaces of transponders from different manufacturers;

[0049] 3) Data encoding of the transponder transmission message according to the A5 interface protocol of each transponder manufacturer;

[0050] 4) Generate baseband code frequency matching the A5 interface of each transponder manufacturer;

[0051] 5) Modulate the signal according to the A5 interface protocol requirements of each transponder manufacturer;

[0052] 6) Perform protocol encoding on the modulated signal according to the A5 interface protocol requirements of each transponder manufacturer;

[0053] The main function of the demodulation module is to sort out and send the transponder uplink modulated signal sent by the antenna module to the subsequent logic components, including:

[0054] 1) Demodulate the signal sent from the A1 interface to obtain the serial baseband code;

[0055] 2) Arrange the serial signal into a data form that can be processed by the logic components;

[0056] The control module plays a key role in the process of hardware adaptation to the A5 interface of transponders from various manufacturers, such as Figure 4 shown.

[0057] Compared with the existing dedicated transponder message reading and writing tools, the control module has the following main differences:

[0058] 1) According to the manufacturer information of the target transponder, the antenna required by the target transponder can be enabled through the power control signal, and the antenna not required by the target transponder can be turned off, so that the antenna can match the corresponding target transponder A5 interface antenna;

[0059] 2) According to the manufacturer information of the target transponder, the antenna's transmit power is adjusted through a power control signal to meet the minimum requirement of the target transponder's A5 interface for receiving energy.

[0060] 3) According to the manufacturer information of the target transponder, the debugging depth of the signal in the A5 interface is adjusted by modulating the depth control signal to meet the modulation depth requirements of the A5 interface protocol of each manufacturer's transponder and meet the electrical parameter requirements of the internal power supply sorting circuit of each manufacturer's transponder.

[0061] The control module controls the hardware and completes the one-to-one matching of the universal transponder message reading and writing tool with the A5 interface signal parameter differences of each manufacturer's transponder, making it possible to write transponder messages for each manufacturer. Its functions mainly include:

[0062] 1) According to the manufacturer information given by the communication module, control the power supply of the 27M antenna and the 9M antenna (8-shaped ring or polygonal antenna) through the power control signal and the antenna selection signal;

[0063] 2) According to the target transponder A5 interface power requirement, the output power of the 27M antenna and the 9M antenna is controlled by a power control signal;

[0064] 3) According to the modulation depth requirement of the target transponder A5 interface signal, the modulation depth of the 27M antenna and the 9M antenna is controlled by debugging the depth control signal;

[0065] 4) Send the symbol data organized by the encoding module according to the protocol to the data ports corresponding to the 27M antenna and the 9M antenna;

[0066] 5) When the communication module gives a read command, the 4M antenna is enabled and the transponder uplink data given by the 4M antenna is forwarded to the demodulation module.

[0067] The control module selects the appropriate antenna hardware, controls the antenna's transmit power, controls the modulation depth of the A5 interface signal, and sends the corresponding symbol data to the target transponder according to the manufacturer information of the target transponder, thereby completing the requirement of writing the message to the target transponder.

[0068] The antenna module is an important module for hardware matching the A5 interface of transponders from various manufacturers. It integrates the requirements of A5 interface antennas of all transponder manufacturers. Among them, the 9M "8" ring antenna selects the appropriate size and combines power control to meet the input power requirements of the A5 interface of transponders from various manufacturers; the 9M polygonal antenna meets the requirements of transponder products with 9 polygonal antennas among transponder manufacturers.

[0069] The main function of the antenna module is to send the correct A5 interface signal energy and data to transponders from different manufacturers, including:

[0070] 1) When the 27M antenna is enabled, the transmission power is adjusted according to the power control signal; the signal modulation is adjusted according to the debugging depth information; the code element signal is modulated and sent out according to the protocol rate requirements.

[0071] 2) When the 9M antenna is enabled, enable the 9M antenna (8-shaped ring) or 9M antenna (8-sided shape) according to the antenna selection signal; adjust the transmission power according to the power control signal; adjust the signal modulation according to the debugging depth information; modulate the code element signal according to the protocol rate requirement and send it out.

[0072] 3) When the 4M antenna is enabled, it receives the uplink signal sent by the transponder through the air gap, amplifies and filters it, obtains robust uplink data with good signal-to-noise ratio, and then sends it to the control module.

[0073] Compared with the special message reading and writing tools previously provided by various manufacturers, the universal transponder message reading and writing tool has a reasonable architecture design, feasible solution analysis and implementation. It uses one version of software and hardware to solve the practical problem that each railway bureau circuit section needs to prepare a variety of special transponder reading and writing tools, reducing the spare parts library of reading and writing tools in the electrical section, and also improving the efficiency of on-site transponder installation, use and maintenance operations.

[0074] The above is only a preferred embodiment of the present invention and is not intended to limit the protection scope of the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A design method for a universal transponder message reading and writing tool, characterized in that: The universal transponder message reading and writing tool comprises two parts: a management unit and an execution unit; The functions of the management unit include providing a human-machine interface to the user, importing message files from various manufacturers, exchanging message information with the execution unit and the message information actually read from the transponder, and comparing the consistency of the written message and the actually read message; The functions of the execution unit include receiving the operation instructions of the management unit, processing the message to be written according to the requirements of the A5 interface of each manufacturer's transponder, enabling the corresponding radio frequency antenna unit, controlling the process of message writing and message reading, and sending radio frequency energy to the external transponder; The execution unit includes a communication module, an encoding module, a demodulation module, a control module, and an antenna module. The main function of the communication module is to communicate with the management unit and complete the data exchange between the management unit and the execution unit modules; The encoding module integrates the data encoding, signal modulation and protocol encoding required by the A5 interface protocol of each manufacturer's transponder; the encoding module matches the corresponding protocol processing part in the encoding module according to the manufacturer information sent by the communication module, and organizes the target transponder message into the data format required by the A5 interface of each transponder; The main function of the demodulation module is to sort out and send the transponder uplink modulation signal sent by the antenna module to the subsequent logic components; The control module selects appropriate antenna hardware, controls the antenna's transmission power, controls the modulation depth of the A5 interface signal, and sends the corresponding symbol data to the target transponder according to the manufacturer information of the target transponder, thereby completing the requirement of writing the message to the target transponder; The main function of the antenna module is to send the correct A5 interface signal energy and data to transponders from different manufacturers.

2. The design method according to claim 1, characterized in that: The management unit includes a display module connected to the human-machine interface, a message storage module connected to the data download interface, a communication module connected to the instruction interface, and a process control module for the entire software function; the functions include: 1) The operator logs in through the password on the human-machine interface of the display module and obtains the permission to use different tools; 2) Obtain the transponder message file from the external device through the data download interface, verify the legitimacy of the file data, and store it in the message storage module; 3) The management unit provides the user with various transponder operation options through a human-computer interaction interface; 4) Extract the user messages and transmission messages contained in the message files of each manufacturer; 5) Through the command interface, the communication module sends the message to be written and the manufacturer information of the transponder to which the message is to be written to the execution unit. The execution unit matches the corresponding antenna module according to the manufacturer information, selects the corresponding transponder A5 interface communication protocol, and sends the message to be written to the target transponder; 6) Receive the message writing result from the execution unit, and after confirming that the writing is completed, send a transponder message reading instruction to the execution unit; 7) Receive the message reading result of the execution unit and compare and verify it with the target written message; 8) The human-machine interface displays whether the message writing is successful.

3. The design method according to claim 1, characterized in that: The control module is relative to the existing dedicated transponder message reading and writing tool: 1) According to the manufacturer information of the target transponder, the antenna required by the target transponder can be enabled through the power control signal, and the antenna not required by the target transponder can be turned off, so that the antenna can match the corresponding target transponder A5 interface antenna; 2) According to the manufacturer information of the target transponder, the transmit power of the antenna is adjusted through the power control signal to meet the minimum requirement of the target transponder A5 interface for receiving energy; 3) According to the manufacturer information of the target transponder, the debugging depth of the signal in the A5 interface is adjusted by modulating the depth control signal to meet the modulation depth requirements of the A5 interface protocol of each manufacturer's transponder and meet the electrical parameter requirements of the internal power supply sorting circuit of each manufacturer's transponder.

4. The design method according to claim 1, characterized in that: The control module controls the hardware to complete the one-to-one matching of the universal transponder message reading and writing tool with the differences in the A5 interface signal parameters of transponders from various manufacturers. Its functions mainly include: 1) According to the manufacturer information provided by the communication module, the power supply of the 27M antenna and the 9M antenna is controlled through the power control signal and the antenna selection signal; 2) According to the target transponder A5 interface power requirement, the output power of the 27M antenna and the 9M antenna is controlled by a power control signal; 3) According to the modulation depth requirement of the target transponder A5 interface signal, the modulation depth of the 27M antenna and the 9M antenna is controlled by debugging the depth control signal; 4) Send the symbol data organized by the encoding module according to the protocol to the data ports corresponding to the 27M antenna and the 9M antenna; 5) When the communication module gives a read command, the 4M antenna is enabled and the transponder uplink data given by the 4M antenna is forwarded to the demodulation module.

5. The design method according to claim 1, characterized in that: The encoding module functions include: 1) Select different encoding processes according to the transponder manufacturer information sent by the communication module; 2) Generate signal frequencies that adapt to the A5 interfaces of transponders from different manufacturers; 3) Data encoding of the transponder transmission message according to the A5 interface protocol of each transponder manufacturer; 4) Generate baseband code frequency matching the A5 interface of each transponder manufacturer; 5) Modulate the signal according to the A5 interface protocol requirements of each transponder manufacturer; 6) Perform protocol encoding on the modulated signal according to the A5 interface protocol requirements of each transponder manufacturer.

6. The design method according to claim 1, characterized in that: The universal transponder message reading and writing tool obtains message files of various manufacturers from external devices through the data download interface, and is connected to the external transponder through the A1, A4, and A5 interfaces, wherein the A1 and A4 interfaces are transponder message reading interfaces, and A5 is a transponder message writing interface; The command interface between the management unit and the execution unit is connected via wireless communication.

7. The design method according to claim 1, characterized in that: The execution unit is composed of a logic component + a radio frequency circuit, which receives the operation instructions of the management unit, coordinates the work of various components, generates A5 interface signals adapted to transponders of various manufacturers, and feeds back the operation results; In terms of hardware, the execution unit uses two 9M antennas with physical shapes that are compatible with the physical size antenna shapes of all transponder manufacturers, and selects a certain antenna to work through a switching switch; through the energy control circuit, it controls the energy level of the signal sent by the antenna to adapt to the A5 interface of each manufacturer's transponder; in terms of software, conventional logic components are used to complete the process control and communication, and different standard signal generation functions.

Images