CN104219012A - EMC test system and EMC test method for transponder transmission module - Google Patents
EMC test system and EMC test method for transponder transmission module Download PDFInfo
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- CN104219012A CN104219012A CN201410525821.7A CN201410525821A CN104219012A CN 104219012 A CN104219012 A CN 104219012A CN 201410525821 A CN201410525821 A CN 201410525821A CN 104219012 A CN104219012 A CN 104219012A
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Abstract
The invention discloses an EMC test system and an EMC test method for a transponder transmission module, and belongs to the railway industry. The EMC test system comprises the transponder transmission module, a code sending device and an EMC test device, wherein the code sending device is connected with the transponder transmission module, and used for simulating the information condition sent to the transponder transmission module by a ground transponder when a train passes through the ground transponder in various cases; the EMC test device is connected with the transponder transmission module, and used for simulating a train running control system to communicate with the transponder transmission module, and testing whether the transponder transmission module goes wrong. The EMC test system and the EMC test method disclosed by the invention are capable of automatically identifying the communication mode used by the transponder transmission module, high in anti-jamming capability, and capable of avoiding a blockage problem which usually occurs during a test using a notebook computer; moreover, a portion communicating with the transponder transmission module in the EMC test device is mutually independent of a portion used for storing and analysing communication data, thus the reliability is higher.
Description
Technical Field
The invention belongs to the railway industry, and particularly relates to an EMC test system and a test method for a transponder transmission module.
Background
The transponder information Transmission Module (abbreviated as BTM) is an important component in a train operation control system, and is mainly used for receiving transponder information sent by a ground transponder, obtaining a transponder user message by processing the transponder information, and transmitting the transponder user message to the train operation control system.
In order to ensure the safety of the transponder information transmission module, EMC testing of the transponder information transmission module is required in the testing phase. At present, the method for performing EMC test on the transponder information transmission module mainly uses a notebook computer to test the transponder information transmission module. However, the use of a notebook computer for EMC testing often causes the phenomenon of jamming, and fails to analyze and determine responsibility for faults.
Disclosure of Invention
In order to solve the above problems, the present invention provides an EMC test system and a test apparatus for a transponder transmission module.
An EMC test system of a transponder transmission module comprises the transponder transmission module, a code sending device and an EMC test device; wherein,
the code sending device is connected with the transponder transmission module and is used for simulating the information condition sent to the transponder transmission module by the ground transponder when the train passes through the ground transponder under various conditions;
and the EMC testing device is connected with the transponder transmission module and used for simulating the communication between the train operation control system and the transponder transmission module and testing whether the transponder transmission module breaks down or not.
An EMC test method of a transponder transmission module, the EMC test method comprising:
the simulation train operation control system sends a request command to the responder transmission module;
automatically identifying and locking a communication mode used by the transponder transmission module according to the reply of the transponder transmission module;
and acquiring the communication data of the transponder transmission module, analyzing whether a fault occurs in the test according to the data, and outputting a test result.
The invention has the beneficial effects that: the invention provides an EMC test system and a test method of a transponder transmission module, which can automatically identify the communication mode used by the transponder transmission module, have strong anti-interference capability, avoid the problem of frequent jamming when a notebook computer is used for testing, and have higher reliability because the part of the EMC test device communicating with the transponder transmission module is independent from the part of the EMC test device storing and analyzing communication data.
Drawings
FIG. 1 is a block diagram of an EMC test system for a transponder transmission module provided by the present invention;
FIG. 2 is a block diagram of an EMC testing apparatus in an EMC testing system of a transponder transmission module provided in the present invention;
FIG. 3 is a flow chart of an EMC test method of a transponder transmission module provided by the present invention;
fig. 4 is a flowchart for automatically identifying and locking a communication mode in the EMC test method of the transponder transmission module provided by the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the following embodiments and accompanying drawings. The exemplary embodiments and descriptions of the present invention are provided mainly for explaining the present invention, but not for limiting the present invention.
The invention provides an EMC test system of a transponder transmission module, as shown in FIG. 1, the EMC test system comprises a transponder transmission module, a code sending device and an EMC test device; the code sending device is connected with the transponder transmission module and is used for simulating the information condition sent to the transponder transmission module by the ground transponder when the train passes through the ground transponder under various conditions; and the EMC testing device is connected with the transponder transmission module and used for simulating the communication between the train operation control system and the transponder transmission module and testing whether the transponder transmission module breaks down or not.
Specifically, the EMC testing apparatus includes an analog communication module 101, an identification module 102, a data storage analysis module 103, and an output module 104;
the simulation communication module 101 is used for simulating a train operation control system to send a request command to a transponder transmission module and receive a reply of the transponder transmission module;
the identification module 102 is used for automatically identifying and locking the communication mode used by the transponder transmission module, so that the analog communication module can continuously communicate with the transponder transmission module;
the data storage analysis module 103 is used for acquiring the communication data of the transponder transmission module and analyzing whether a fault occurs in the test according to the data;
and the output module 104 is used for outputting the test result.
In the invention, the information condition sent by the ground transponder to the transponder transmission module when the code sending device simulates that a train passes through the ground transponder under various conditions specifically means that: for example, when the train passes through the ground transponder at normal speed, low speed and high speed, and changes suddenly, turns back and the like, the ground transponder sends information to the transponder transmission module;
during testing, the EMC testing device, the tested transponder transmission module and the code sending device in the EMC testing system are all placed in an EMC testing laboratory, and the testing process is completed in an EMC environment.
Further, the identification module 102 in the embodiment of the present invention specifically includes:
a judging unit 1021, configured to judge whether a reply of the responder transmission module is received within a preset time after the analog communication module sends the request command to the responder transmission module;
a checking unit 1022, configured to check the information replied by the transponder transmission module;
and the locking unit 1023 is used for locking the communication mode of the current analog communication module and the transponder transmission module after the information returned by the transponder transmission module is verified by the verification unit.
Accordingly, the identification module 102 may further include:
the counting unit 1024 is used for counting the number of times that the request command is sent to the responder transmission module by the analog communication module;
and the clearing unit 1025 is used for clearing the count of the counting unit.
Further, the data storage analysis module 103 in the embodiment of the present invention specifically includes:
a data acquisition unit 1031 configured to acquire communication data of the transponder transmission module; the acquired communication data mainly comprises: the code sending device simulates various conditions to send information to the responder transmission module, and then the responder transmission module processes the received information;
a storage unit 1032 for storing the acquired communication data; the communication process and the data can be analyzed more carefully in the later period;
an analyzing unit 1033, configured to analyze the communication data and determine whether a fault is encountered in the test.
Specifically, a data acquisition unit in the EMC testing apparatus of the present invention is connected to an L, V, B interface of a transponder transmission module, and acquires communication data of the transponder transmission module through a L, V, B interface of the transponder transmission module; the L interface is a communication interface between the transponder transmission module and the recorder, the V interface is a communication interface between the transponder transmission module and the monitoring system, and the B interface is a communication interface between the transponder transmission module and the train operation control system;
therefore, the EMC testing device can simultaneously detect the L, V, B interfaces of the transponder transmission module, and can detect the communication state of the L, V, B interface and whether the three interfaces have faults or data abnormity through the output module, so that the inconvenience that the communication interfaces need to be switched back and forth when a notebook computer is used for testing is avoided, and the usability of data is improved.
Specifically, in the EMC testing device of the present invention, the analog communication module 101 and the identification module 102, which simulate the train operation control system, to achieve normal communication between the EMC testing device and the transponder transmission module, and the data storage and analysis module 103, which obtains and analyzes the communication data of the transponder transmission module, are respectively implemented in two processors; as shown in fig. 2, the processor 1 and the processor 2 respectively perform the above operations, so that the communication part and the data acquisition and analysis part are ensured to be independent from each other, thereby improving the reliability of the EMC testing apparatus.
Correspondingly, in the EMC testing device of the transponder transmission module, the two processors are respectively and independently powered, and the used power supply is an external power supply; however, because the interference in the EMC environment is large, some processing needs to be performed on the external power supply to ensure that the external power supply can normally supply power to the EMC testing device, so that the EMC testing device can normally work;
therefore, the EMC testing device also comprises a power supply processing module which is used for processing an external power supply to ensure that the external power supply meets the power supply requirement under the EMC environment so as to ensure the normal work of the EMC testing device; the power supply processing module specifically comprises an EMC processing circuit, a protection circuit, a voltage conversion circuit, a filtering processing circuit and the like;
the EMC testing device also comprises a voltage monitoring module for monitoring the voltage of the power supply; when the voltage is monitored to be unstable and the voltage value is not accordant with the expected value, the corresponding module in the EMC testing device is triggered to restart; specifically, the EMC testing apparatus according to the present invention includes two processors, and when the voltage monitoring module monitors that the voltage value of a certain processor does not match the expected value, the voltage monitoring module triggers to restart the processor.
Specifically, in the embodiment of the present invention, the EMC testing device is connected to a transponder transmission module, and the transponder transmission module is further connected to a code sending device, both of which are disposed in an EMC environment; one processor in the EMC testing device simulates a train operation control system to send a request command to a transponder transmission module, so that normal communication with the transponder transmission module is realized; at the moment, the transponder transmission module processes the information after receiving the information simulated by the code sending device, and respectively sends the processing result to the recorder, the monitoring system and the train operation control system through L, V, B interfaces; at this time, another processor in the EMC testing apparatus obtains the processing result of the transponder transmission module through the L, V, B interface, analyzes the processing result to determine whether the transponder transmission module has a fault, and sends the testing result to the output module for output.
The EMC test system of the transponder transmission module provided by the invention can automatically identify the communication mode used by the transponder transmission module, has strong anti-jamming capability, avoids the problem of frequent jamming when a notebook computer is used for testing, has higher reliability because the part of the EMC test device communicating with the transponder transmission module is independent from the part of the EMC test device storing and analyzing communication data, can simultaneously detect the interface B, V, L, avoids the inconvenience of switching the communication interface back and forth in the notebook computer test, and simultaneously improves the usability of data.
The embodiment of the invention also provides an EMC test method of the transponder transmission module, which comprises the following steps:
s1: the simulation train operation control system sends a request command to the responder transmission module;
s2: automatically identifying and locking a communication mode used by the transponder transmission module according to the reply of the transponder transmission module;
s3: and acquiring the communication data of the transponder transmission module, analyzing whether a fault occurs in the test according to the data, and outputting a test result.
Specifically, in step S2 of the embodiment of the present invention, the method for automatically identifying and locking the communication mode used by the transponder transmission module specifically includes:
judging whether response information replied by the transponder transmission module is received or not;
if not, continuing to send a request command to the responder transmission module;
if yes, checking the received response information; and if the verification is passed, locking the communication mode of the current analog communication module and the transponder transmission module.
Further, in step S1 of the embodiment of the present invention, when the simulated train operation control system sends the request command to the transponder transmission module, the method further includes: counting the number of times of sending request commands to the responder transmission module;
correspondingly, when it is determined that the response message replied by the transponder transmission module is not received and the received response message is not verified, the method may further include: judging whether the counted count value reaches a preset value, if not, continuing to simulate the train operation control system to send a request command to a responder transmission module, if so, resetting the count, and changing another communication mode to simulate the train operation control system to send the request command to the responder transmission module;
specifically, for example, the communication modes of the train operation control system and the transponder transmission module include SCI and CAN, and the following only describes the process of automatically identifying and locking the communication mode used by the transponder transmission module, and the specific flow is as shown in fig. 4, as follows:
step 401: the simulation train operation control system sends an SCI request command to the responder transmission module and adds 1 to the count;
step 402: judging whether response information replied by the transponder transmission module is received, if so, executing step 403, otherwise, executing step 405;
step 403: checking the received response message, if the check is passed, executing step 404, and if the check is not passed, executing step 405;
step 404: locking the SCI communication mode;
step 405: judging whether the count value reaches a preset value or not, if not, returning to the step 401, if so, clearing the count value and executing the step 406;
step 406: the simulation train operation control system sends a CAN request command to the transponder transmission module, and adds 1 to the count;
step 407: judging whether response information replied by the transponder transmission module is received, if so, executing step 408, otherwise, executing step 410;
step 408: checking the received response message, if the check is passed, executing step 409, and if the check is not passed, executing step 410;
step 409: locking a CAN communication mode;
step 410: and judging whether the count value reaches a preset value or not, if not, returning to the step 406, and if so, clearing the count value and returning to the step 401.
In steps 403 and 408 of the embodiment of the present invention, verifying the response information specifically includes: firstly, checking whether the length and the type of the response information are matched; then, checking the communication CRC in the response information; then, verifying the core content in the response information; and the verification of the response information is passed only after the contents are verified.
Further, in step S3 of the embodiment of the present invention, the communication data of the transponder transmission module is obtained through communication interfaces between the transponder transmission module and the recorder, and between the monitoring system and the train operation control system, where the communication interfaces specifically refer to an L interface, a V interface, and a B interface, where the L interface refers to a communication interface between the transponder transmission module and the recorder, the V interface is a communication interface between the transponder transmission module and the monitoring system, and the B interface is a communication interface between the transponder transmission module and the train operation control system; therefore, the EMC testing device can simultaneously detect the L, V, B interface of the transponder transmission module, thereby avoiding the inconvenience of switching the communication interface back and forth when a notebook computer is used for testing, and simultaneously improving the usability of data;
the invention provides an EMC test system and a test method of a transponder transmission module, which can automatically identify a communication mode used by the transponder transmission module, have strong anti-interference capability, and avoid the problem of frequent jamming when a notebook computer is used for testing, and the part of an EMC test device communicating with the transponder transmission module is independent from the part storing and analyzing communication data, so that the reliability is higher, the EMC test device can simultaneously detect an interface B, V, L, the inconvenience of switching the communication interface back and forth in the notebook test is avoided, and the usability of data is improved.
While the specification has been described in terms of various embodiments, each embodiment does not necessarily encompass a separate embodiment, and such descriptions are merely for clarity and should be taken as a whole by those skilled in the art, and the embodiments may be combined as appropriate to form other embodiments that will be appreciated by those skilled in the art. The present disclosure is intended to cover only the practical examples of the present invention, and they are not intended to limit the scope of the present invention, and any modifications, equivalents, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (10)
1. An EMC test system of a transponder transmission module is characterized by comprising the transponder transmission module, a code sending device and an EMC test device;
the code sending device is connected with the transponder transmission module and is used for simulating the information condition sent to the transponder transmission module by the ground transponder when the train passes through the ground transponder under various conditions;
and the EMC testing device is connected with the transponder transmission module and is used for simulating the communication between the train operation control system and the transponder transmission module and testing whether the transponder transmission module breaks down or not.
2. The EMC test system of claim 1, wherein the EMC test apparatus comprises:
the simulation communication module is used for simulating the train operation control system to send a request command to the responder transmission module and receiving the reply of the responder transmission module;
the identification module is used for automatically identifying and locking the communication mode used by the transponder transmission module, so that the analog communication module can continuously communicate with the transponder transmission module;
the data storage analysis module is used for acquiring the communication data of the transponder transmission module and analyzing whether a fault occurs in the test according to the data;
and the output module is used for outputting the test result.
3. The EMC test system of claim 2, wherein the identification module specifically includes:
the judging unit is used for judging whether the reply of the responder transmission module is received within the preset time after the analog communication module sends the request command to the responder transmission module;
the verification unit is used for verifying the information replied by the transponder transmission module;
and the locking unit is used for locking the communication mode of the current analog communication module and the responder transmission module after the information replied by the transponder transmission module is verified by the verification unit.
4. The EMC test system of claim 2, wherein the data storage analysis module specifically includes:
the data acquisition unit is used for acquiring communication data of the transponder transmission module;
a storage unit for storing the acquired communication data;
and the analysis unit is used for analyzing the communication data and judging whether a fault is encountered in the test.
5. EMC test system as claimed in claim 4, characterized in that the data acquisition unit acquires the communication data of the transponder transmission module, in particular via a communication interface between the transponder transmission module and the recorder, the monitoring system and the train operation control system.
6. The EMC test system of claim 2, wherein the EMC test apparatus further comprises a power supply processing module for processing an external power supply to meet power supply requirements under the EMC environment.
7. The EMC test system of claim 2, wherein the EMC test device further comprises a voltage monitoring module to monitor a voltage of the power supply, and to trigger a restart of a corresponding module in the EMC test device when the monitored voltage value does not correspond to an expected value.
8. An EMC test method of a transponder transmission module, characterized in that the EMC test method comprises:
the simulation train operation control system sends a request command to the responder transmission module;
automatically identifying and locking a communication mode used by the transponder transmission module according to the reply of the transponder transmission module;
and acquiring the communication data of the transponder transmission module, analyzing whether a fault occurs in the test according to the data, and outputting a test result.
9. EMC test method according to claim 8, characterized in that the method of automatically identifying and locking the communication mode used by the transponder transmission module is embodied as:
judging whether response information replied by the transponder transmission module is received or not;
if not, continuing to send a request command to the responder transmission module;
if yes, checking the received response information; and if the verification is passed, locking the communication mode of the current analog communication module and the transponder transmission module.
10. EMC testing method according to claim 8, characterized in that said obtaining of communication data of the transponder transmission module is obtained in particular by means of communication interfaces between the transponder transmission module and the recorder, the monitoring system and the train operation control system.
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| CN201410525821.7A CN104219012B (en) | 2014-10-09 | 2014-10-09 | The EMC test system of transponder transport module and method of testing |
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| CN109625025A (en) * | 2018-12-13 | 2019-04-16 | 北京交大思诺科技股份有限公司 | BTM equipment early warning system |
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| Publication number | Publication date |
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| CN104219012B (en) | 2016-08-17 |
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