CN215340823U - Commercial car data center test system - Google Patents
Commercial car data center test system Download PDFInfo
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- CN215340823U CN215340823U CN202120693037.2U CN202120693037U CN215340823U CN 215340823 U CN215340823 U CN 215340823U CN 202120693037 U CN202120693037 U CN 202120693037U CN 215340823 U CN215340823 U CN 215340823U
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Abstract
The utility model discloses a test system for a data center of a commercial vehicle, which comprises: the Ethernet interface, the CAN interface, the 485 interface, the 232 interface and the power interface belong to a measured object and are integrated in a data center; preferably, when the upper computer controls the programmable power supply to be powered on, the data center is connected with the ethernet tester through a 100Base-T1 ethernet network, and the data center is connected with the CAN network tester through a CAN network. The utility model solves the problems of complex operation, high testing difficulty and low testing efficiency in the real vehicle testing process of vehicle-mounted data collection, analysis and verification in the prior art.
Description
Technical Field
The utility model belongs to the field of automobiles, and particularly relates to a test system for a data center of a commercial vehicle.
Background
Commercial vehicles, particularly mass transit vehicles, the integrity and safety of vehicle information plays a crucial role in the proper operation of the vehicle. The vehicle-mounted data center is used as a key part for collecting vehicle information, functions of Ethernet communication, CAN data acquisition, 485 bus information transmission, program upgrading, vehicle key information uploading and the like between equipment are realized, and the equipment is used as a vehicle networking key part and is important for normal operation of vehicles. The change of the logic function of the whole vehicle or the requirement of the public transport system causes the short iteration cycle of the software of the vehicle-mounted data center and the short test time.
The existing vehicle-mounted data testing method mainly collects data through a manual real vehicle and analyzes and judges signals one by one, electronic equipment is relatively independent, the data volume of the whole vehicle is large, the data updating speed is high, and in addition, due to the complexity of the environment of the real vehicle during operation, the problems of high testing difficulty, high workload, long testing period, low testing efficiency, insufficient testing depth and the like exist in manual testing.
SUMMERY OF THE UTILITY MODEL
The utility model provides a test system for a data center of a commercial vehicle, aiming at the problems in the prior art, and part of embodiments of the test system can solve the problems in the prior art that the vehicle-mounted data collection, analysis and verification are complex to operate, the test difficulty is high and the test efficiency is low in the real vehicle test process.
In order to achieve the purpose, the utility model adopts the following technical scheme:
a commercial vehicle data center testing system, the testing system comprising: the Ethernet interface, the CAN interface, the 485 interface, the 232 interface and the power interface belong to a measured object and are integrated in a data center; preferably, when the upper computer controls the programmable power supply to be powered on, the data center is connected with the ethernet tester through a 100Base-T1 ethernet network, and the data center is connected with the CAN network tester through a CAN network.
Preferably, the test system comprises a test method of an on-board data center, and the test method comprises the following steps: the Ethernet tester sends information such as route configuration and signals to the data center, tests an Ethernet interface of the data center and outputs a test result; the CAN network tester imports a topological communication protocol of a vehicle type applied by the data center and a database file so that the data center obtains a message ID, a message period and a configuration file of a message signal of a real vehicle simulation node, and tests a CAN interface of the data center according to a test instruction and outputs a test result; preferably, when the test instruction simulates real vehicle voltage fluctuation to the data center, the step of testing the data center by the programmable power supply according to the test case includes: according to the test case, simulating the voltage of the real vehicle at the lowest and highest power supply voltage standards: controlling the programmable power supply to be powered on within a preset time range, setting the lowest voltage or the highest voltage, and testing whether the data center works normally when the lowest voltage or the highest voltage fluctuates; and simulating the transient voltage change of the real vehicle according to the test case, controlling the programmable power supply to be electrified within a preset time range, and testing whether the equipment works normally when the voltage of the data center fluctuates transiently.
Preferably, when the ethernet interface of the data center is tested in the test instruction, the step of sending fixed periodic messages with different frame lengths by an ethernet tester to test the ethernet interface of the data center includes: monitoring whether the routing configuration of the Ethernet interface of the data center is normal or not according to the test case, periodically sending data packets with different frame lengths to the Ethernet interface of the data center, and testing whether the throughput, the time delay and the packet loss rate of the Ethernet interface meet the functional requirements when receiving a target data packet or not; and detecting whether the Ethernet interface of the data center generates frame loss or not in a high-load test environment to simulate a large-flow network port test environment according to the test case, and testing the network load capacity of the Ethernet interface of the data center in a preset time period.
Preferably, when the CAN interface of the data center to be tested is tested in the test instruction, the step of testing the CAN interface of the data center by the CAN network tester according to the test case includes: simulating a real vehicle environment according to the test case, importing a database file to a CAN network tester by using a message protocol of a corresponding vehicle type, sending periodic messages to a CAN interface of the data center, and testing whether the CAN interface of the data center is normal within a preset time; and according to the test case, using a high-priority message to pull up the load in a preset time period to simulate a high-load test environment, and testing whether a CAN interface of the data center loses frames or generates error frames in the preset time period.
Preferably, when the 485 interface and the 232 interface of the data center are tested in the test instruction, the step of testing the 485 interface and the 232 interface of the data center by the upper computer according to the test case includes: and simulating data configuration information of a 485 bus and a 232 bus of the real vehicle according to the test case, sending periodic data to the 485 interface and the 232 interface of the data center through an upper computer by using a data packet mode configured corresponding to the vehicle type, and testing whether the 485 interface and the 232 interface of the data center are normal within preset time.
Compared with the prior art, the utility model has the beneficial effects that: 1) the system CAN simulate the real vehicle environment to realize systematic, integrated and automatic test on the communication function comprising an Ethernet interface, a CAN interface, a 485 interface and a 232 interface; 2) the device can simulate the real vehicle environment to carry out voltage fluctuation test, multiple continuous tests, endurance test, power-on and power-off test and automatically store test data of all interfaces.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a system framework diagram of the present invention.
FIG. 2 is a flow chart of the present invention for simulating real vehicle voltage fluctuation test in a data center.
FIG. 3 is a flow chart of the present invention for testing an Ethernet interface of a data center.
FIG. 4 is a flow chart of the present invention in testing a data center CAN interface.
Fig. 5 is a flowchart illustrating the testing of 485 and 232 interfaces of a data center according to the present invention.
1-a data center; 2-a power interface; 3-CAN interface; 4-an ethernet interface; 5-485 interface; 6-232 interface; 7-232 upper computer; 8-485 upper computer; 9-external network tester; 10-CAN network tester; 11-programmable power supply.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive effort based on the embodiments of the present invention, are within the scope of the present invention.
In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention.
As shown in fig. 1-5, this embodiment provides a vehicle-mounted data testing system, which includes an ethernet interface, a CAN interface, a 485 interface, a 232 interface, and a power interface belonging to a tested object, an upper computer (including a 485 upper computer and a 232 upper computer), and a testing device (including a programmable power supply, a CAN network tester, and an ethernet tester) connected to a corresponding tested object; the Ethernet interface, the CAN interface, the 485 interface, the 232 interface and the power interface are integrated in the data center.
The upper computer is used for receiving a test instruction input by a user through a human-computer interaction interface and sending protocol content corresponding to the test case content to the data center according to the test instruction;
the test equipment is used for simulating the whole vehicle environment of the data center according to the test case, testing equipment interfaces such as an Ethernet interface and a CAN interface, and outputting a test result.
The testing equipment comprises a programmable power supply connected with the upper computer, and the programmable power supply is controlled to supply power to the data center when being electrified. The data center is connected with the Ethernet tester through a 100Base-T1 Ethernet, and meanwhile, the data center is connected with the CAN network tester through a CAN network.
The embodiment also provides a testing method of the vehicle-mounted data center, which is applied to the vehicle-mounted data center testing system, and the method comprises the following steps:
and the Ethernet tester sends information such as routing configuration, signals and the like to the data center, tests the Ethernet interface of the data center and outputs a test result.
The CAN network tester imports a topological communication protocol of a vehicle type applied by the data center and a database file so that the data center CAN acquire a message ID, a message period and a configuration file of a message signal of the real vehicle simulation node, and tests a CAN interface of the data center according to a test instruction and outputs a test result.
The 485 upper computer imports the real vehicle 485 protocol content and the file applied by the data center so that the data center can acquire the message content of the simulated real vehicle 485 bus, tests the 485 interface of the data center according to the test instruction and outputs the test result.
The 232 upper computer imports the real vehicle 232 protocol content and the file applied by the data center so that the data center can acquire the message content of the simulated real vehicle 232 bus, test the 232 interface of the data center according to the test instruction and output the test result.
When the voltage fluctuation of the real vehicle is simulated for the data center in the test instruction, the step of testing the data center by the programmable power supply according to the test case comprises the following steps:
according to the test case, simulating the voltage of the real vehicle at the lowest and highest power supply voltage standards: controlling the programmable power supply to be powered on within a preset time range, setting the lowest voltage or the highest voltage, and testing whether the data center works normally when the lowest voltage or the highest voltage fluctuates;
and simulating the transient voltage change of the real vehicle according to the test case, controlling the programmable power supply to be electrified within a preset time range, and testing whether the equipment works normally when the voltage of the data center fluctuates transiently.
When the test instruction is used for testing the Ethernet interface of the data center, the step of sending messages with fixed periodicity and different frame lengths by an Ethernet tester to test the Ethernet interface of the data center comprises the following steps:
monitoring whether the routing configuration of the Ethernet interface of the data center is normal or not according to the test case, periodically sending data packets with different frame lengths to the Ethernet interface of the data center, and testing whether the throughput, the time delay and the packet loss rate of the Ethernet interface meet the functional requirements when receiving a target data packet or not;
and detecting whether the Ethernet interface of the data center generates frame loss or not in a high-load test environment to simulate a large-flow network port test environment according to the test case, and testing the network load capacity of the Ethernet interface of the data center in a preset time period.
When the CAN interface of the data center to be tested is tested in the test instruction, the step that the CAN network tester tests the CAN interface of the data center according to the test case comprises the following steps:
simulating a real vehicle environment according to the test case, importing a database file to a CAN network tester by using a message protocol of a corresponding vehicle type, sending periodic messages to a CAN interface of the data center, and testing whether the CAN interface of the data center is normal within a preset time;
and according to the test case, using a high-priority message to pull up the load in a preset time period to simulate a high-load test environment, and testing whether a CAN interface of the data center loses frames or generates error frames in the preset time period.
When the 485 interface and the 232 interface of the data center are tested in the test instruction, the step of testing the 485 interface and the 232 interface of the data center by the upper computer according to the test case comprises the following steps:
and simulating data configuration information of a 485 bus and a 232 bus of the real vehicle according to the test case, sending periodic data to the 485 interface and the 232 interface of the data center through an upper computer by using a data packet mode configured corresponding to the vehicle type, and testing whether the 485 interface and the 232 interface of the data center are normal within preset time.
Although the present invention has been described in detail with respect to the above embodiments, it will be understood by those skilled in the art that modifications or improvements based on the disclosure of the present invention may be made without departing from the spirit and scope of the utility model, and these modifications and improvements are within the spirit and scope of the utility model.
Claims (2)
1. A commercial vehicle data center test system, characterized in that, test system includes:
the Ethernet interface, the CAN interface, the 485 interface, the 232 interface and the power interface belong to a measured object and are integrated in a data center;
the system comprises a 485 upper computer and a 232 upper computer, wherein the 485 upper computer is used for receiving a test instruction input by a user through a man-machine interaction interface and sending protocol content corresponding to test case content to the data center according to the test instruction;
with the test equipment who corresponds measurand and be connected, test equipment is including programmable control power supply, CAN network tester, ethernet tester, programmable control power supply with power source, 485 host computer and 232 host computer are connected, CAN network tester with CAN interface connection, ethernet tester with ethernet interface connection, test equipment is used for the basis the test case is right data center simulates whole car environment, tests ethernet interface, CAN interface, 485 interface, 232 interface, power source to output test result.
2. The system of claim 1, wherein when the upper computer controls the programmable power supply to be powered on, the data center is connected to the ethernet tester through a 100Base-T1 ethernet network, and the data center is connected to the CAN network tester through a CAN network.
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| CN202120693037.2U CN215340823U (en) | 2021-04-06 | 2021-04-06 | Commercial car data center test system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112965470A (en) * | 2021-04-06 | 2021-06-15 | 上海创程车联网络科技有限公司 | Commercial car data center test system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112965470A (en) * | 2021-04-06 | 2021-06-15 | 上海创程车联网络科技有限公司 | Commercial car data center test system |
| CN112965470B (en) * | 2021-04-06 | 2024-06-18 | 上海创程车联网络科技有限公司 | Commercial car data center test system |
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