CN113965503A - Automobile CAN gateway routing bench test method and system - Google Patents
Automobile CAN gateway routing bench test method and system Download PDFInfo
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- CN113965503A CN113965503A CN202111227404.0A CN202111227404A CN113965503A CN 113965503 A CN113965503 A CN 113965503A CN 202111227404 A CN202111227404 A CN 202111227404A CN 113965503 A CN113965503 A CN 113965503A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/50—Testing arrangements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
- H04L12/40006—Architecture of a communication node
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/08—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
- H04L43/0823—Errors, e.g. transmission errors
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
- H04L2012/40208—Bus networks characterized by the use of a particular bus standard
- H04L2012/40215—Controller Area Network CAN
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
- H04L2012/40267—Bus for use in transportation systems
- H04L2012/40273—Bus for use in transportation systems the transportation system being a vehicle
Abstract
The invention relates to the technical field of automobile bus communication, and provides an automobile CAN gateway routing rack test system, which comprises: the test channel selection module selects one untested CAN channel from the 6 paths of CAN channels as a current test CAN channel; the testing module periodically sends a set number of testing frames to the gateway router through the testing CAN channel and forwards the testing frames sent by the testing CAN channel to the CAN channel corresponding to the testing CAN channel through the gateway router; the recording module is used for recording the receiving time and/or the sending time of the test frames of all the CAN channels in real time; after the 6 paths of CAN channels are tested, all data recorded by the recording module CAN be output through the display module, the verification of forwarding of the 6 paths of CAN gateway signal routes is automatically completed, the missing sending or the missing forwarding of test frames is avoided, the test data of each tested CAN channel CAN be automatically recorded in the test process, and an engineer CAN conveniently evaluate the performances of the missing forwarding rate, the error forwarding rate and the like of the gateway routes based on the test data.
Description
Technical Field
The invention relates to the technical field of automobile bus communication, and provides a method and a system for testing an automobile CAN gateway routing rack.
Background
Along with the appearance of intelligent automobile, the requirement of customer to the intelligent service of car is also higher and higher, whole car ECU module's integration is also stronger and stronger, network architecture topology is at this moment by traditional power CAN, automobile body CAN expands and increases information CAN, chassis CAN, diagnosis CAN, along with gateway route is forwardded also by traditional 2 way CAN upgrade to support 6 at least ways CAN, gateway signal route is also more and more complicated, carry out CAN route through traditional artifical rack and forward the verification, not only the efficiency of software testing is low, and the signal problem of missing sending or missing the commentaries on classics appears easily.
Disclosure of Invention
The invention provides a vehicle CAN gateway routing bench test method, aiming at solving the problems.
The invention is realized in this way, a car CAN gateway routing bench test system, the said system includes:
the test unit of integration on CANOE software, the test unit passes through 6 ways CAN passageways and gateway route communication connection, and wherein the test unit includes: a test channel selection module, a test module, a recording module and a display module, wherein the test channel selection module is connected with the test module, the test module is connected with the gateway route through 6 paths of CAN channels, the recording module is connected with the display module, the display module is connected with the test module, wherein,
the test channel selection module selects one untested CAN channel from the 6 paths of CAN channels as a current test CAN channel;
the testing module periodically sends a set number of testing frames to the gateway router through the testing CAN channel and forwards the testing frames sent by the testing CAN channel to the CAN channel corresponding to the testing CAN channel through the gateway router;
the recording module is used for recording the receiving time and/or the sending time of the test frames of all the CAN channels in real time;
and the display module is used for displaying and outputting all recorded data through the display module by the recording module after the 6-channel CAN channel is tested.
Further, the system comprises:
the test frame number determining module is used for determining the number of test frames sent by each test CAN channel and sending the test frames to the test module;
and the sending period determining module is used for determining the sending period of each test frame and sending the sending period to the testing module.
Further, a mapping relation between a test frame sending CAN channel and a test frame forwarding CAN channel is stored in the routing gateway.
Further, the system further comprises:
and the power supply selection unit is used for testing the power supply voltage of the module, and the value range of the power supply voltage is 9-16V.
The invention is realized in this way, a car CAN gateway routing bench test method, the method includes the following steps:
s1, selecting an untested CAN channel from the 6 CAN channels as a current testing CAN channel;
s2, periodically sending test frames with set number to the gateway router through the test CAN channel, and forwarding the test frames sent by the test CAN channel to the CAN channel corresponding to the test CAN channel by the gateway router;
s3, recording the receiving time and/or the sending time of the test frame on the 6 paths of CAN channels in real time;
and S4, detecting whether all CAN channels are tested, if so, outputting recorded data, and if not, executing the step S1.
Furthermore, after the current test CAN channel finishes the set time length of sending all the test frames, the current test CAN channel is determined to be finished, and one CAN channel is selected from the untested CAN channels to be used as the next test CAN channel.
Further, the transmission period of the test frame is 20ms, and the number P of the test frames per test CAN channel is 5.
Further, a mapping relation between a test frame sending CAN channel and a test frame forwarding CAN channel is stored in the routing gateway.
The test method for the automobile CAN gateway routing rack provided by the invention CAN automatically complete the verification of 6-path CAN gateway signal routing forwarding, avoid the missed sending or missed forwarding of test frames, automatically record the test data of each test CAN channel in the test process, and facilitate the evaluation of the gateway routing missing rate, the wrong forwarding rate and other performances by engineers based on the test data.
Drawings
Fig. 1 is a schematic structural diagram of an automotive CAN gateway routing bench test system provided in an embodiment of the present invention;
fig. 2 is a flowchart of a method for testing a CAN gateway routing bench according to an embodiment of the present invention.
Detailed Description
The following description of preferred embodiments of the invention will be made in further detail with reference to the accompanying drawings.
Fig. 1 is a schematic structural diagram of an automotive CAN gateway routing bench test system provided in an embodiment of the present invention, and for convenience of description, only a part related to the embodiment of the present invention is shown, where the system includes:
the test unit of integration on CANOE software, the test unit passes through 6 ways CAN passageways and gateway route communication connection, and wherein the test unit includes:
a test channel selection module, a test module, a recording module and a display module, wherein the test channel selection module is connected with the test module, the test module is connected with the gateway route through 6 paths of CAN channels, the recording module is connected with the display module, the display module is connected with the test module, wherein,
the test channel selection module selects one untested CAN channel from the 6 paths of CAN channels as a current test CAN channel;
the testing module periodically sends a set number of testing frames to the gateway router through the testing CAN channel and forwards the testing frames sent by the testing CAN channel to the CAN channel corresponding to the testing CAN channel through the gateway router;
the recording module is used for recording the receiving time and/or the sending time of the test frames of all the CAN channels in real time;
and the display module is used for displaying and outputting all recorded data through the display module by the recording module after the 6-channel CAN channel is tested.
In the embodiment of the invention, the routing gateway stores the mapping relation between the test frame sending CAN channel and the test frame forwarding CAN channel, supposing that the sending CAN channel is defined as CAN channel 1 in the mapping table, and the corresponding receiving CAN channels are CAN channel 2 and CAN channel 4, when the CAN channel 1 is determined as the testing CAN channel, the testing module periodically sends the test frames with the set number to the gateway route through the CAN channel 1, and the gateway route forwards the test frames sent by the CAN channel 1 to the CAN channel 2 and the CAN channel 4.
In an embodiment of the present invention, the system further includes:
the test frame number determining module is used for determining the number of test frames sent by each test CAN channel and sending the test frames to the test module;
and the sending period determining module is used for determining the sending period of each test frame and sending the sending period to the testing module.
In an embodiment of the present invention, the system further includes:
and the power supply selection unit is used for testing the power supply voltage of the module, and is generally 9-16V.
Fig. 2 is a flowchart of a method for testing a CAN gateway routing bench provided in the embodiment of the present invention, where the method specifically includes the following steps:
s1, selecting an untested CAN channel from the 6 CAN channels as a current testing CAN channel;
s2, periodically sending test frames with set number to the gateway router through the test CAN channel, and forwarding the test frames sent by the test CAN channel to the CAN channel corresponding to the test CAN channel by the gateway router;
s3, recording the receiving time and/or the sending time of the test frame on the 6 paths of CAN channels in real time;
and S4, detecting whether all CAN channels are tested, if so, outputting recorded data, and if not, executing the step S1.
In the embodiment of the present invention, after the current testing CAN channel finishes sending all the test frames for the set duration (5S), it is determined that the testing of the current testing CAN channel is finished, and one CAN channel is selected from the untested CAN channels as the next testing CAN channel, i.e., step S1 is executed.
In the embodiment of the present invention, the sending period of the test frame is 20ms, the number P of the test frames of each test CAN channel is 5, and 6 channels of the CAN channels are named in sequence as: CAN passageway 1 to CAN passageway 6, confirm CAN passageway 1 as the test CAN passageway earlier, send 1 test frame to the gateway route through CAN passageway 1 every 20ms, the gateway route forwards the test frame that CAN passageway 1 sent to the CAN passageway 1 (test CAN passageway) corresponding CAN passageway, the above-mentioned process of cycle execution, until CAN passageway 1 has sent 5 test frames to the gateway route is continuous, after the setting duration that the 5 th test frame sent and finished, affirm that CAN passageway 1 tests and finishes, regard CAN passageway 2 as next test CAN passageway, its test procedure is the same with CAN passageway 1's test procedure, test each CAN passageway in proper order, until all CAN passageways test finishes.
In the embodiment of the invention, a routing gateway stores a mapping relation between a test frame sending CAN channel and a test frame forwarding CAN channel, records the forwarding CAN channel of each CAN channel test frame, assumes that the sending CAN channel is defined as CAN channel 1 in a mapping table, and the corresponding receiving CAN channels are CAN channel 2 and CAN channel 4, when the CAN channel 1 is determined as the testing CAN channel, a test module periodically sends a set number of test frames to the gateway route through the CAN channel 1, and the gateway route forwards the test frames sent by the CAN channel 1 to the CAN channel 2 and the CAN channel 4.
The test method for the automobile CAN gateway routing rack provided by the invention CAN automatically complete the verification of 6-path CAN gateway signal routing forwarding, avoid the missed sending or missed forwarding of test frames, automatically record the test data of each test CAN channel in the test process, and facilitate the evaluation of the gateway routing missing rate, the wrong forwarding rate and other performances by engineers based on the test data.
It is clear that the specific implementation of the invention is not restricted to the above-described embodiments, but that various insubstantial modifications of the inventive process concept and technical solutions are within the scope of protection of the invention.
Claims (8)
1. An automotive CAN gateway routing bench test system, the system comprising:
the test unit of integration on CANOE software, the test unit passes through 6 ways CAN passageways and gateway route communication connection, and wherein the test unit includes: a test channel selection module, a test module, a recording module and a display module, wherein the test channel selection module is connected with the test module, the test module is connected with the gateway route through 6 paths of CAN channels, the recording module is connected with the display module, the display module is connected with the test module, wherein,
the test channel selection module selects one untested CAN channel from the 6 paths of CAN channels as a current test CAN channel;
the testing module periodically sends a set number of testing frames to the gateway router through the testing CAN channel and forwards the testing frames sent by the testing CAN channel to the CAN channel corresponding to the testing CAN channel through the gateway router;
the recording module is used for recording the receiving time and/or the sending time of the test frames of all the CAN channels in real time;
and the display module is used for displaying and outputting all recorded data through the display module by the recording module after the 6-channel CAN channel is tested.
2. The automotive CAN gateway routing bench test system of claim 1, wherein the system comprises:
the test frame number determining module is used for determining the number of test frames sent by each test CAN channel and sending the test frames to the test module;
and the sending period determining module is used for determining the sending period of each test frame and sending the sending period to the testing module.
3. The CAN gateway routing bench test system of claim 1 or 2, wherein a mapping relationship between the test frame sending CAN channel and the test frame forwarding CAN channel is stored on the routing gateway.
4. The automotive CAN gateway routing bench test system of claim 1 or 2, further comprising:
and the power supply selection unit is used for testing the power supply voltage of the module, and the value range of the power supply voltage is 9-16V.
5. The CAN gateway routing bench test method for a car according to any of claims 1 to 4, wherein the method comprises the following steps:
s1, selecting an untested CAN channel from the 6 CAN channels as a current testing CAN channel;
s2, periodically sending test frames with set number to the gateway router through the test CAN channel, and forwarding the test frames sent by the test CAN channel to the CAN channel corresponding to the test CAN channel by the gateway router;
s3, recording the receiving time and/or the sending time of the test frame on the 6 paths of CAN channels in real time;
and S4, detecting whether all CAN channels are tested, if so, outputting recorded data, and if not, executing the step S1.
6. The method of claim 5, wherein the testing of the current CAN channel is deemed to be completed after the current CAN channel completes the sending of all the test frames for the set duration, and one CAN channel is selected from among the untested CAN channels as the next CAN channel.
7. The method of claim 5 wherein the transmission period of the test frames is 20ms, and the number of test frames P of each test CAN channel is 5.
8. The method of claim 5 wherein the routing gateway has stored thereon a mapping between the test frame sending CAN channel and the test frame forwarding CAN channel.
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| JP2003198563A (en) * | 2001-12-27 | 2003-07-11 | Ntt Comware Corp | Radio communication device, method therefor, radio communication program and computer readable recording medium recorded with the same program |
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