CN113556325A - Method and device for checking transponder message - Google Patents
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- H—ELECTRICITY
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- H04B1/59—Responders; Transponders
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- H—ELECTRICITY
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- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
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Abstract
The invention provides a method and a device for verifying a transponder message, wherein the method comprises the following steps: converting the transponder message from hexadecimal to binary; according to the programming specification of the responder message, performing bit-wise segmentation on the binary responder message to obtain binary fragments of the responder message, and analyzing each binary fragment to obtain fields in the responder message; and matching each field with the compiling specification, and acquiring the verification result of the responder message according to the matching result corresponding to each field. The invention realizes the automatic analysis and verification of the transponder message, improves the verification efficiency and the verification accuracy, and is convenient for a user to verify the transponder message.
Description
Technical Field
The invention relates to the technical field of message verification, in particular to a method and a device for verifying a transponder message.
Background
When a user of the transponder finds that the transponder has a problem, the transponder message needs to be checked to ensure the reliability of the transponder message, and to eliminate or further find whether the problem occurs in the transponder message.
The transponder messages currently used for train interlocking are hexadecimal and have multidimensional arrays. When the transponder message is verified, the transponder message is firstly converted into a binary system from a hexadecimal system, and then the binary system transponder message is manually segmented and analyzed and then verified.
The manual method for verifying the transponder message requires labor cost, takes long time and is easy to make mistakes.
Disclosure of Invention
The invention provides a method and a device for checking a transponder message, which are used for solving the defects of high cost, low efficiency and easy error of checking the transponder message in the prior art, realizing automatic checking of the transponder message and improving the efficiency and the accuracy of the checking.
The invention provides a method for checking a transponder message, which comprises the following steps:
converting the transponder message from hexadecimal to binary;
according to the programming specification of the responder message, performing bit-wise segmentation on the binary responder message to obtain binary fragments of the responder message, and analyzing each binary fragment to obtain fields in the responder message;
and matching each field with the compiling specification, and acquiring the verification result of the responder message according to the matching result corresponding to each field.
According to the method for checking the transponder message provided by the invention, the binary transponder message is segmented according to the compiling specification of the transponder message, and the method comprises the following steps:
and according to the digit and the position of each field in the compilation specification of the responder message, carrying out bit-based segmentation on the binary responder message.
According to the transponder message verification method provided by the invention, the matching of each field with the programming specification comprises the following steps:
acquiring the position of each field in the responder message;
if each field exists in the compiling specification, judging whether the position of each field in the compiling specification is the same as the position of each field in the responder message or not, and acquiring a matching result corresponding to each field.
According to the method for verifying the responder message, provided by the invention, the step of obtaining the verification result of the responder message according to the matching result corresponding to each field comprises the following steps:
and if each field exists in the compiling specification and the position of each field in the compiling specification is the same as the position of each field in the responder message, the verification result is known to be passed, and if not, the verification result is known to be failed.
According to the method for verifying the transponder message provided by the invention, before the transponder message is converted from hexadecimal system to binary system, the method comprises the following steps:
determining the position of the responder message in an array according to the type of the responder message; the type and the position of the transponder message are pre-associated;
and extracting the responder message from the array according to the position of the responder message.
According to the method for verifying the transponder message provided by the invention, the method for converting the transponder message from hexadecimal to binary comprises the following steps:
under the condition that the responder message is in an encrypted format, analyzing the responder message;
and converting the decrypted transponder message from hexadecimal to binary.
According to the transponder message checking method provided by the invention, under the condition that the transponder message is used for train interlocking, the fields in the transponder message comprise one or more of a main transponder identifier with a function of forenotice of a transponder, a mobile authorization, a mobile blocking mode access, a main signal mode access and a protection section.
The invention also provides a transponder message checking device, which comprises:
the conversion module is used for converting the transponder message from hexadecimal to binary;
the processing module is used for carrying out bit-wise segmentation on the binary transponder message according to the compilation specification of the transponder message, acquiring binary fragments of the transponder message, analyzing each binary fragment and acquiring fields in the transponder message;
and the checking module is used for matching each field with the compiling specification and acquiring the checking result of the responder message according to the matching result corresponding to each field.
The invention also provides an electronic device, which comprises a memory, a processor and a computer program stored on the memory and capable of running on the processor, wherein the processor executes the program to realize the steps of any one of the transponder message verification methods.
The invention also provides a non-transitory computer readable storage medium having stored thereon a computer program which, when executed by a processor, performs the steps of the transponder message verification method as described in any one of the above.
According to the transponder message checking method and device provided by the invention, the hexadecimal transponder message is automatically converted into the binary system, and then the binary transponder message is subjected to bitwise segmentation and analysis checking by using the programming specification of the transponder message, so that the transponder message is subjected to automatic analysis checking, the checking efficiency and the checking accuracy are improved, and a user can conveniently check the transponder message.
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In order to more clearly illustrate the technical solutions of the present invention or the prior art, the drawings needed for the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.
FIG. 1 is a schematic flow chart of a transponder message verification method according to the present invention;
fig. 2 is a schematic structural diagram of a transponder message checking apparatus provided in the present invention;
fig. 3 is a schematic structural diagram of an electronic device provided in the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The following describes a transponder message verification method according to the present invention with reference to fig. 1, including: step 101, converting a transponder message from a hexadecimal system into a binary system;
the transponder is an important positioning device in a CBTC (Communication Based Train Control) system and an FAO (full Automatic Operation) system, and plays a critical role in the safety of Train Operation.
The responder message is a message sent by the responder. The transponder message is generally hexadecimal, and because the programming specification is defined for the binary system of the transponder, the transponder message is converted into the binary system before the programming specification of the transponder message is used for checking the transponder message.
102, according to the programming specification of the responder message, performing bit-wise segmentation on the binary responder message to obtain binary fragments of the responder message, and analyzing each binary fragment to obtain fields in the responder message;
optionally, since the accuracy of the formulation specification of the transponder message directly affects the accuracy of the transponder message verification, the formulation specification of the transponder message is determined to be correct before the transponder message is verified using the formulation specification of the transponder message.
The organization structure of the transponder message is defined in the formulation specification of the transponder message. That is, the responder message is generated according to the compiling specification, and the responder message is checked to determine whether the responder message meets the pre-established compiling specification.
The present embodiment uses the formulation specification of the transponder message to segment the binary file of the transponder message into a plurality of binary segments. Binary fragments of the computer language are then parsed into identifiable fields.
Optionally, the fields in the analyzed transponder message are visualized, so that the user can confirm the fields conveniently.
And 103, matching each field with the compiling specification, and acquiring a verification result of the responder message according to a matching result corresponding to each field.
And verifying each field by using the compilation specification to obtain a verification result.
According to the embodiment, the hexadecimal transponder message is automatically converted into the binary system, and then the binary system transponder message is subjected to bitwise segmentation and analysis verification by using the programming specification of the transponder message, so that the transponder message is subjected to automatic analysis verification, the verification efficiency and the verification accuracy are improved, and convenience is brought to a user for performing transponder message verification.
On the basis of the foregoing embodiment, in this embodiment, the performing bit-wise segmentation on the binary transponder packet according to the programming specification of the transponder packet includes: and according to the digit and the position of each field in the compilation specification of the responder message, carrying out bit-based segmentation on the binary responder message.
The position and the number of bits of each field in the responder message are specified in the programming specification of the responder message. Optionally, the sequence of each field in the transponder message may be determined according to the position of each field, and the binary fragments of each field are sequentially intercepted from the binary transponder message according to the bit number of each field according to the sequence of each field in the transponder message, so as to implement segmentation of the binary transponder message, with fast segmentation speed and high accuracy.
On the basis of the foregoing embodiment, in this embodiment, the matching each field with the compilation specification includes: acquiring the position of each field in the responder message; if each field exists in the compiling specification, judging whether the position of each field in the compiling specification is the same as the position of each field in the responder message or not, and acquiring a matching result corresponding to each field.
Specifically, when each field is verified, the present embodiment not only requires that each field exists in the formulation specification, but also requires that the position of each field in the transponder is consistent with the position set in the formulation specification, and only when both conditions are satisfied, it is determined that the field is verified to pass, thereby improving the accuracy of verification.
On the basis of the foregoing embodiment, the obtaining a verification result of the responder packet according to a matching result corresponding to each field in this embodiment includes: and if each field exists in the compiling specification and the position of each field in the compiling specification is the same as the position of each field in the responder message, the verification result is known to be passed, and if not, the verification result is known to be failed.
Specifically, it is determined that the transponder message check passes only if each field in the transponder message is successfully matched, otherwise the check fails.
On the basis of the foregoing embodiments, before converting the transponder message from hexadecimal to binary in this embodiment, the method includes: determining the position of the responder message in an array according to the type of the responder message; the type and the position of the transponder message are pre-associated; and extracting the responder message from the array according to the position of the responder message.
Optionally, the type of the transponder message is searched and obtained according to the number of the transponder input by the user. The array is stored with a plurality of transponder messages, and the positions of the transponder messages of different types stored in the array are different.
Because the corresponding relation between the type and the position of the responder message is preset, the position of the responder message in the array can be positioned according to the type and the corresponding relation of the responder message. The transponder message is extracted from the located position in the array.
On the basis of the foregoing embodiments, in this embodiment, the converting the transponder packet from hexadecimal to binary includes: under the condition that the responder message is in an encrypted format, analyzing the responder message; and converting the decrypted transponder message from hexadecimal to binary.
In particular, in order to improve the security of the transponder message, the transponder message is encrypted.
If the responder message is an encrypted file, the responder message is decrypted before being converted into a binary system.
The transponder message is generally encrypted by using an encryption tool, and the transponder message is decrypted into a message in a manufacturer-defined format by using a corresponding tool during decryption.
On the basis of the foregoing embodiments, in this embodiment, when the transponder message is used for train interlocking, the field in the transponder message includes one or more of a main transponder identifier, a movement authorization, a movement blocking mode route, a main signal mode route, and a protection segment, which have a function of notifying a transponder in advance.
The route corresponding to the main transponder having the function of predicting the transponder is the first route in the corresponding annunciator, and the predicted route is the route protected by the second annunciator along the route opening direction.
The movement authorization refers to the permission of a train to enter along a given path and move in a specific area.
The mobile blocking mode route is a route handled by a train having a CI (Computer Interlocking) at the CBTC control level. The same route at the same time can ensure that a plurality of trains in the same running direction can run safely in the access area.
The main signal mode route refers to a route handled by a train with CI being a non-CBTC control level. The same route at the same time can only ensure the safe operation of a train in the access area.
The protection section is a line protection area which is arranged outside the main access terminal signal machine and along the main access direction and is used for ensuring the safe and accurate stop of the train.
The transponder message verification apparatus provided by the present invention is described below, and the transponder message verification apparatus described below and the transponder message verification method described above may be referred to in correspondence with each other.
As shown in fig. 2, the apparatus includes a conversion module 201, a processing module 202, and a verification module 203, wherein:
the conversion module 201 is configured to convert the transponder message from hexadecimal to binary;
the responder message is a message sent by the responder. The transponder message is generally hexadecimal, and because the programming specification is defined for the binary system of the transponder, the transponder message is converted into the binary system before the programming specification of the transponder message is used for checking the transponder message.
The processing module 202 is configured to perform bit-wise segmentation on the binary transponder packet according to the formulation specification of the transponder packet, to obtain binary segments of the transponder packet, and to analyze each binary segment to obtain a field in the transponder packet;
optionally, since the accuracy of the formulation specification of the transponder message directly affects the accuracy of the transponder message verification, the formulation specification of the transponder message is determined to be correct before the transponder message is verified using the formulation specification of the transponder message.
The organization structure of the transponder message is defined in the formulation specification of the transponder message. That is, the responder message is generated according to the compiling specification, and the responder message is checked to determine whether the responder message meets the pre-established compiling specification.
The present embodiment uses the formulation specification of the transponder message to segment the binary file of the transponder message into a plurality of binary segments. Binary fragments of the computer language are then parsed into identifiable fields.
The checking module 203 is configured to match each field with the compiling specification, and obtain a checking result of the transponder packet according to a matching result corresponding to each field.
And verifying each field by using the compilation specification to obtain a verification result.
According to the embodiment, the hexadecimal transponder message is automatically converted into the binary system, and then the binary system transponder message is subjected to bitwise segmentation and analysis verification by using the programming specification of the transponder message, so that the transponder message is subjected to automatic analysis verification, the verification efficiency and the verification accuracy are improved, and convenience is brought to a user for performing transponder message verification.
On the basis of the foregoing embodiment, the processing module in this embodiment is configured to: and according to the digit and the position of each field in the compilation specification of the responder message, carrying out bit-based segmentation on the binary responder message.
On the basis of the foregoing embodiment, the verification module in this embodiment is configured to: acquiring the position of each field in the responder message; if each field exists in the compiling specification, judging whether the position of each field in the compiling specification is the same as the position of each field in the responder message or not, and acquiring a matching result corresponding to each field.
On the basis of the foregoing embodiment, the verification module in this embodiment is configured to: and if each field exists in the compiling specification and the position of each field in the compiling specification is the same as the position of each field in the responder message, the verification result is known to be passed, and if not, the verification result is known to be failed.
On the basis of the above embodiment, this embodiment further includes an extraction module, configured to determine a position of the transponder packet in the array according to the type of the transponder packet; the type and the position of the transponder message are pre-associated; and extracting the responder message from the array according to the position of the responder message.
On the basis of the foregoing embodiments, the conversion module in this embodiment is configured to: under the condition that the responder message is in an encrypted format, analyzing the responder message; and converting the decrypted transponder message from hexadecimal to binary.
On the basis of the above embodiment, in this embodiment, in the case that the transponder message is used for train interlocking, the field in the transponder message includes one or more of a main transponder identifier having a function of notifying a transponder in advance, a mobile authorization, a mobile block mode route, a main signal mode route, and a protection zone.
Fig. 3 illustrates a physical structure diagram of an electronic device, which may include, as shown in fig. 3: a processor (processor)310, a communication Interface (communication Interface)320, a memory (memory)330 and a communication bus 340, wherein the processor 310, the communication Interface 320 and the memory 330 communicate with each other via the communication bus 340. Processor 310 may invoke logic instructions in memory 330 to perform a transponder message verification method comprising: converting the transponder message from hexadecimal to binary; according to the programming specification of the responder message, performing bit-wise segmentation on the binary responder message to obtain binary fragments of the responder message, and analyzing each binary fragment to obtain fields in the responder message; and matching each field with the compiling specification, and acquiring the verification result of the responder message according to the matching result corresponding to each field.
In addition, the logic instructions in the memory 330 may be implemented in the form of software functional units and stored in a computer readable storage medium when the software functional units are sold or used as independent products. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
In another aspect, the present invention also provides a computer program product comprising a computer program stored on a non-transitory computer readable storage medium, the computer program comprising program instructions which, when executed by a computer, enable the computer to perform the transponder message verification method provided by the above methods, the method comprising: converting the transponder message from hexadecimal to binary; according to the programming specification of the responder message, performing bit-wise segmentation on the binary responder message to obtain binary fragments of the responder message, and analyzing each binary fragment to obtain fields in the responder message; and matching each field with the compiling specification, and acquiring the verification result of the responder message according to the matching result corresponding to each field.
In yet another aspect, the present invention also provides a non-transitory computer readable storage medium having stored thereon a computer program, which when executed by a processor is implemented to perform the transponder message verification methods provided above, the method comprising: converting the transponder message from hexadecimal to binary; according to the programming specification of the responder message, performing bit-wise segmentation on the binary responder message to obtain binary fragments of the responder message, and analyzing each binary fragment to obtain fields in the responder message; and matching each field with the compiling specification, and acquiring the verification result of the responder message according to the matching result corresponding to each field.
The above-described embodiments of the apparatus are merely illustrative, and the units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.
Through the above description of the embodiments, those skilled in the art will clearly understand that each embodiment can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware. With this understanding in mind, the above-described technical solutions may be embodied in the form of a software product, which can be stored in a computer-readable storage medium such as ROM/RAM, magnetic disk, optical disk, etc., and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the methods described in the embodiments or some parts of the embodiments.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. A method for checking a transponder message, comprising:
converting the transponder message from hexadecimal to binary;
according to the programming specification of the responder message, performing bit-wise segmentation on the binary responder message to obtain binary fragments of the responder message, and analyzing each binary fragment to obtain fields in the responder message;
and matching each field with the compiling specification, and acquiring the verification result of the responder message according to the matching result corresponding to each field.
2. The method according to claim 1, wherein said bit-wise partitioning binary transponder packets according to the specification of said transponder packets comprises:
and according to the digit and the position of each field in the compilation specification of the responder message, carrying out bit-based segmentation on the binary responder message.
3. The transponder message verification method of claim 1, wherein said matching each field to said orchestration specification comprises:
acquiring the position of each field in the responder message;
if each field exists in the compiling specification, judging whether the position of each field in the compiling specification is the same as the position of each field in the responder message or not, and acquiring a matching result corresponding to each field.
4. The method according to claim 3, wherein the obtaining the verification result of the transponder packet according to the matching result corresponding to each field comprises:
and if each field exists in the compiling specification and the position of each field in the compiling specification is the same as the position of each field in the responder message, the verification result is known to be passed, and if not, the verification result is known to be failed.
5. The method of verifying a transponder message according to any one of claims 1-4, wherein said converting the transponder message from hexadecimal to binary comprises:
determining the position of the responder message in an array according to the type of the responder message; the type and the position of the transponder message are pre-associated;
and extracting the responder message from the array according to the position of the responder message.
6. The transponder message verification method according to any of claims 1-4, wherein said converting the transponder message from hexadecimal to binary comprises:
under the condition that the responder message is in an encrypted format, analyzing the responder message;
and converting the decrypted transponder message from hexadecimal to binary.
7. The transponder message verification method according to any one of claims 1-4, wherein in case the transponder message is used for train interlocking, the fields in the transponder message include one or more of a main transponder identification, a movement authorization, a movement block mode approach, a main signal mode approach and a protection zone that have a forenotice transponder function.
8. A transponder message verification device, comprising:
the conversion module is used for converting the transponder message from hexadecimal to binary;
the processing module is used for carrying out bit-wise segmentation on the binary transponder message according to the compilation specification of the transponder message, acquiring binary fragments of the transponder message, analyzing each binary fragment and acquiring fields in the transponder message;
and the checking module is used for matching each field with the compiling specification and acquiring the checking result of the responder message according to the matching result corresponding to each field.
9. An electronic device comprising a memory, a processor and a computer program stored on said memory and executable on said processor, characterized in that said processor, when executing said program, carries out the steps of the transponder message checking method according to any one of claims 1 to 7.
10. A non-transitory computer readable storage medium, having stored thereon a computer program, wherein the computer program, when being executed by a processor, is adapted to carry out the steps of the transponder message verification method according to any one of claims 1 to 7.
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| CN114666009A (en) * | 2022-03-16 | 2022-06-24 | 天津津航计算技术研究所 | Automatic responder message generation method based on pattern matching |
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Application publication date: 20211026 |