CN115856482A - MP 5-based 360-panorama abnormal working condition automatic testing method - Google Patents

Abstract

The invention discloses an automatic 360-panorama abnormal working condition testing method based on MP5, which mainly has the design concept that different fault phenomena are decomposed into test cases in advance, an operation simulation signal and a voltage simulation signal are sent to a tested MP5 with a 360-panorama function during testing, the tested MP5 is tested in a circulating mode based on the simulation signals and the test cases, MP5 interface images are synchronously collected and identified, and fault influence factors are analyzed aiming at the MP5 interface images to generate a test report. The method can lock key influence parameters of the accidental problems and establish quality problem scene data, thereby greatly improving the probability of recurrence of the accidental fault phenomenon and assisting in evasive verification of vehicle models under research and follow-up vehicle models.

Description

Automatic testing method of 360 panoramic abnormal working conditions based on MP5

technical field

The invention relates to the field of automobile fault testing, in particular to an MP5-based automatic testing method for 360 panoramic abnormal working conditions.

Background technique

During the R&D life cycle of the vehicle project, the 360 panoramic parts will be updated and iterated with multiple software versions. For each software version, the testers need to conduct multiple rounds of bench and real vehicle tests for its full functions. During the test, sometimes some abnormal failures such as 360 panoramic black screen, stuck screen, and overlapping interface switching will occasionally occur. Because these phenomena are sporadic, it is difficult to try to reproduce them manually. The designers of 360 Panorama cannot obtain the system logs when the fault phenomenon occurs and the fault influencing factors of the phenomenon, which makes it impossible to further analyze the cause of the phenomenon. Often such If the problem is not resolved, there will be certain potential risks after the vehicle is launched in the later stage.

Specifically, at present, for the occasional fault phenomenon that occurs in the 360 panorama during the bench and real vehicle testing, manual reproduction is unstable, mainly due to the limited influence factors of the traversal fault phenomenon, and when the fault phenomenon occurs even after the accidental recurrence, The test method of reliability verification for the rectification of later problems cannot fully guarantee the effectiveness of the rectification.

Contents of the invention

In view of the above, the present invention aims to provide an MP5-based automatic testing method for 360 panoramic abnormal working conditions to solve the aforementioned technical problems.

The technical scheme that the present invention adopts is as follows:

The present invention provides a kind of MP5-based automatic testing method of 360 panorama abnormal working conditions, including:

Decompose different failure phenomena into test cases in advance;

Send the running analog signal and voltage analog signal to the tested MP5 with 360 panorama function;

Based on the analog signal and test cases, the tested MP5 is cyclically tested, and the MP5 interface image is collected and recognized synchronously;

Analyze MP5 interface images and generate test reports.

In at least one possible implementation manner, the MP5 under test is fixedly arranged in a dark box, and a camera for collecting the interface of the MP5 under test is also installed in the dark box.

In at least one possible implementation manner, the running simulation signal is a CAN signal required to cover abnormal working conditions, including: gear position, steering, vehicle speed and wheel angle.

In at least one possible implementation manner, the voltage analog signal includes: a battery voltage value, an ACC voltage value, and a voltage waveform under a preset working condition.

In at least one possible implementation manner, the cyclical testing of the MP5 under test includes: setting a corresponding test sequence for each test case, for cyclically performing operation simulation signal transmission, voltage adjustment, and MP5 interface image recognition.

In at least one possible implementation manner, the generating the test report includes: automatically generating a test report including fault influence factor information and fault occurrence time information when an MP5 interface image fault is identified.

In at least one possible implementation manner, the test method further includes: during the process of traversing the impact factors, recording the MP5 interface image during the test in real time.

In at least one possible implementation manner, the test method further includes: after updating and rectifying the MP5 under test, using the test case and test sequence that caused the failure to occur earlier to repeat the rectification and verification for many times.

The main design idea of the present invention is to decompose different fault phenomena into test cases in advance, and send the running simulation signal and voltage simulation signal to the MP5 under test with 360 panorama function during the test. Based on the simulation signal and test cases, the tested MP5, and synchronously collect and identify the MP5 interface image, analyze the fault influencing factors for the MP5 interface image and generate a test report. The present invention can lock the key influencing parameters of sporadic problems and establish scene data of quality problems, thereby greatly improving the probability of recurring sporadic fault phenomena, and assisting in-development and follow-up vehicle models to perform avoidance verification.

Further, in some embodiments, multiple reliability tests may be carried out on whether the problem rectification is effective or not.

Description of drawings

In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention will be further described below in conjunction with accompanying drawing, wherein:

Fig. 1 is a flow chart of the MP5-based automatic testing method for 360 panoramic abnormal working conditions provided by the embodiment of the present invention.

Detailed ways

Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

The present invention proposes an embodiment of an MP5-based 360 panoramic abnormal working condition automatic testing method, specifically, as shown in Figure 1, including:

Step S1, decomposing different fault phenomena into test cases in advance;

Step S2, sending a running analog signal and a voltage analog signal to the MP5 under test with a 360-degree panorama function;

Step S3, based on the analog signal and the test case, cyclically test the tested MP5, and synchronously collect and identify the MP5 interface image;

Step S4, analyzing the MP5 interface image, and generating a test report.

Further, the tested MP5 is fixedly arranged in a dark box, and a camera for collecting the interface of the tested MP5 is also installed in the dark box.

Further, the running simulation signal is a CAN signal required to cover abnormal working conditions, including: gear, steering, vehicle speed, and wheel angle.

Further, the voltage analog signal includes: battery voltage value, ACC voltage value, and voltage waveform under preset working conditions.

Further, the cyclic test of the MP5 under test includes: setting a corresponding test sequence for each test case, which is used to cyclically execute the operation simulation signal transmission, voltage adjustment and MP5 interface image recognition.

Further, the generation of the test report includes: when a fault in the MP5 interface image is identified, automatically generating a test report including information on the fault influencing factor and time information of the fault.

Corresponding to the foregoing embodiments, the following specific implementation methods are provided here for reference:

Place the tested faulty component MP5 integrated with 360 panorama function in the automated test black box, adjust the position of MP5 and the position of the real-time shooting camera in the dark box, so that the camera can capture the entire interface of MP5 and clearly display it on the host computer come out.

Write the CAN signal sending sub-Vl program in LabView. This program is used to simulate the R gear, left/right steering, vehicle speed, wheel angle signal, etc. sent to MP5 during the actual test process, which can cover the current 360 abnormal working conditions. CAN signal.

Write the power adjustment sub-Vl program in LabView, which is used to simulate the battery voltage value and ACC voltage value on the bench or real vehicle when the fault phenomenon occurs in the actual test process, and can realize some starting voltages such as when the vehicle is started Some special voltage waveforms such as waveforms, etc., and can be arbitrarily changed by changing the voltage parameters to further create some extreme voltage conditions.

Write the interface identification sub-Vl program in LabView, which is used to automatically identify and judge whether there is a fault phenomenon, mainly to identify some special display elements of the 360 panoramic interface, such as camera, track line, etc.

The reasons for the 360 panoramic black screen, stuck screen, and overlapping interfaces are often related to the battery voltage value or ACC voltage value, the interval time between interfaces, the CAN signal load rate required for vehicle operation, or the combination of these factors. Related, in order to accurately analyze occasional failure phenomena and identify the influencing factors that lead to failure phenomena, targeted test cases can be written for different failure phenomena, which can traverse multiple influencing factors of failure phenomena. In the actual test, you can use the test software Teststand in the host computer to write corresponding test sequences for different test cases. The test sequence can call CAN signal transmission, power adjustment and interface identification subVI programs, and can use the software The For loop structure in realizes the traversal of all factors affecting the fault phenomenon.

Finally, two points can be pointed out: First, in the process of traversing the impact factors, in order to facilitate the designer to analyze the problem in the later stage, you can also set the Datelog recording device to record the MP5 interface image in real time during the test process, and the later stage can be based on the report. At the point in time when the fault phenomenon occurs in the middle, look back at the corresponding fault image. Second, after the rectification of the fault phenomenon is completed, the rectified software can be updated on the tested MP5, and the rectification and verification can be repeated many times by using the test cases and test sequences that caused the fault first to ensure the effectiveness of the rectification.

In summary, the main design idea of the present invention is to decompose different fault phenomena into test cases in advance, and send the running analog signal and voltage analog signal to the MP5 under test with 360 panorama function during the test, based on the analog signal and the test case , cyclically test the MP5 under test, and synchronously collect and identify the MP5 interface image, analyze the fault influencing factors for the MP5 interface image and generate a test report. The present invention can lock the key influencing parameters of sporadic problems and establish scene data of quality problems, thereby greatly improving the probability of recurring sporadic fault phenomena, and assisting in-development and follow-up vehicle models to perform avoidance verification.

In the embodiments of the present invention, "at least one" means one or more, and "multiple" means two or more. "And/or" describes the association relationship of associated objects, indicating that there may be three kinds of relationships, for example, A and/or B may indicate that A exists alone, A and B exist simultaneously, or B exists alone. Among them, A and B can be singular or plural. The character "/" generally indicates that the contextual objects are an "or" relationship. "At least one of the following" and similar expressions refer to any combination of these items, including any combination of single items or plural items. For example, at least one of a, b, and c can represent: a, b, c, a and b, a and c, b and c or a and b and c, where a, b, c can be single, or Can be multiple.

The structure, features and effects of the present invention have been described in detail above based on the embodiments shown in the drawings, but the above are only preferred embodiments of the present invention. It should be noted that the technologies involved in the above-mentioned embodiments and their preferred modes Features, those skilled in the art can reasonably combine and match them into various equivalent solutions without departing from or changing the design ideas and technical effects of the present invention; therefore, the present invention does not limit the scope of implementation as shown in the drawings. Any changes made according to the idea of the present invention, or modifications to equivalent embodiments that are equivalent changes, and still within the spirit covered by the description and illustrations, shall fall within the protection scope of the present invention.

Claims (8)

1. An MP 5-based 360-panorama abnormal working condition automatic testing method is characterized by comprising the following steps:

decomposing different fault phenomena into test cases in advance;

sending an operation analog signal and a voltage analog signal to a tested MP5 with a 360-degree panorama function;

circularly testing the MP5 to be tested based on the analog signal and the test case, and synchronously acquiring and identifying an MP5 interface image;

and analyzing the MP5 interface image and generating a test report.

2. The MP 5-based 360-panorama abnormal working condition automatic testing method of claim 1, wherein the MP5 to be tested is fixedly arranged in a dark box, and a camera for collecting the MP5 interface to be tested is further installed in the dark box.

3. The MP 5-based 360-view panoramic abnormal condition automatic test method according to claim 1, wherein the operation simulation signal is a CAN signal required for covering an abnormal condition, comprising: gear, steering, vehicle speed, and wheel angle.

4. The MP 5-based 360-panorama abnormal-condition automatic test method of claim 1, wherein the voltage analog signal comprises: the voltage value of the storage battery, the voltage value of the ACC and the voltage waveform under the preset working condition.

5. The MP 5-based 360-view panoramic abnormal working condition automatic test method according to claim 1, wherein the cyclic test of the MP5 to be tested comprises: and setting a corresponding test sequence for each test case, and circularly executing operation analog signal transmission, voltage adjustment and MP5 interface image identification.

6. The MP 5-based 360-view abnormal operating condition automatic test method according to claim 1, wherein the generating of the test report comprises: and when the MP5 interface image fault is identified, automatically generating a test report containing fault influence factor information and fault occurrence time information.

7. The MP 5-based 360-panorama abnormal working condition automatic test method according to any one of claims 1 to 6, wherein the test method further comprises: and in the process of traversing the influence factors, recording the MP5 interface image in the test process in real time.

8. The MP 5-based 360 panoramic abnormal operating condition automatic test method of any one of claims 1 to 6, wherein the test method further comprises: after the correction is updated on the MP5 to be tested, the correction verification is carried out by using the test case and the test sequence which lead to the occurrence of the fault for a plurality of times.

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