CN111141529B - Automatic test method for automobile instrument signals - Google Patents
Automatic test method for automobile instrument signals Download PDFInfo
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- CN111141529B CN111141529B CN201911226806.1A CN201911226806A CN111141529B CN 111141529 B CN111141529 B CN 111141529B CN 201911226806 A CN201911226806 A CN 201911226806A CN 111141529 B CN111141529 B CN 111141529B
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Abstract
The invention relates to an automatic test method of automobile instrument signals, which comprises the following steps: establishing an icon sample database, wherein the icon sample database comprises display states of all icons on an automobile instrument panel under different scenes; sending an execution instruction to an automobile instrument panel through an upper simulation device; the automobile instrument panel makes a matched response action according to the execution instruction; acquiring and recording the response action through a first camera to acquire first response information; extracting the display state of the target icon from the first response information, matching the display state of the target icon with an icon sample database, and determining the scene information corresponding to the target icon; verifying whether the scene information corresponding to the target icon is matched with the execution instruction, and if so, displaying the target icon normally; otherwise, the target icon is displayed abnormally. The testing method realizes the automatic detection of the signals, reduces the working intensity of testing personnel, greatly improves the accuracy of signal detection and is beneficial to ensuring the product quality.
Description
Technical Field
The invention relates to the technical field of signal testing, in particular to an automatic testing method for automobile instrument signals.
Background
With the rapid development of the automobile industry, the dependence degree of people on the automobile instrument panel is continuously improved, the automobile instrument panel becomes an important component of an automobile, and the automobile instrument panel undergoes the development process from digitalization to intellectualization and networking. Nowadays, the automobile instrument panel is no longer just used for displaying basic information such as vehicle speed, engine speed, oil quantity and the like, and the information displayed by the automobile instrument panel can be quite huge. However, the more complex the system, the greater the possibility of an error in the dashboard of the vehicle, and the greater the difficulty in detecting the dashboard of the vehicle. At present, the detection of the signal of the automobile instrument panel mainly comprises the steps of manually operating an upper computer of the CAN communication of the PC end to send a message to the automobile instrument panel, and then manually judging whether the signal displayed by the automobile instrument panel is correct or not. However, due to the relatively complex display signals of the automobile instrument panel, the signals repeatedly staring at the automobile instrument panel are easily judged by mistake by workers, and especially for a plurality of periodically flickering signals, the accuracy of manual judgment is further reduced, so that the signal detection quality of the automobile instrument panel cannot be ensured. In addition, the signal of the automobile instrument panel is detected manually, so that the cost is high, and the efficiency is low. Although some automatic signal detection methods are available in the market at the present stage, the detection result accuracy of the detection methods is generally low. Therefore, it is necessary to develop an automatic testing method with high accuracy for detecting the signal of the dashboard of the automobile.
Disclosure of Invention
In order to solve the above technical problems, the present invention provides an automatic test method for automobile instrument signals, based on an upper simulation device and an automobile instrument panel connected to the upper simulation device, wherein the automobile instrument panel is provided with a first camera and a second camera, and the first camera and the second camera are respectively electrically connected to the upper simulation device, the method comprising:
establishing an icon sample database, wherein the icon sample database comprises display states of all icons on an automobile instrument panel under different scenes;
sending an execution instruction to an automobile instrument panel through an upper simulation device;
the automobile instrument panel makes a matched response action according to the execution instruction;
acquiring and recording the response action through a first camera to acquire first response information;
extracting the display state of the target icon from the first response information, matching the display state of the target icon with an icon sample database, and determining the scene information corresponding to the target icon;
verifying whether the scene information corresponding to the target icon is matched with the execution instruction, and if so, displaying the target icon normally; otherwise, the target icon is displayed abnormally.
Further, the method includes verifying whether the scenario information corresponding to the target icon is matched with the execution instruction, if so, displaying the target icon normally, otherwise, after displaying the target icon abnormally, further including an abnormal verification step, where the abnormal verification step includes:
when the target icon is displayed abnormally, the second camera is used for continuously collecting and recording the response action so as to obtain second response information;
extracting the display state of the icon to be verified from the second response information, matching the display state of the icon to be verified with the icon sample database, and determining the scene information corresponding to the icon to be verified;
and when the scene information corresponding to the icon to be verified is consistent with the scene information corresponding to the target icon, confirming that the target icon is abnormally displayed.
Further, the first response information is video information or picture information; the second response signal is video information or picture information; the icon to be verified is embodied in the second response message by the target icon.
Further, the response action comprises signal continuous display, signal discontinuous display or signal preset reset display.
Further, when the response action is continuously displayed as a signal, the first response information is video information, and the second response information is picture information; the first response information is obtained through continuous monitoring of the first camera on the target icon, and the second response signal is obtained through snapshot of the second camera on the icon to be verified.
Further, when the response action is displayed intermittently as a signal or displayed by presetting a reset signal, the first response information and the second response information are both video information; the first response information is obtained through continuous monitoring of the first camera on the target icon, and the second response signal is obtained through short-time recording of the second camera on the icon to be verified.
Further, the target icon and the icon to be verified are matched with an icon sample database through color parameters, shape parameters, flashing frequency or continuous display time.
Further, when the automobile instrument panel receives the execution instruction, a corresponding feedback signal is sent to the upper simulation device.
Further, the upper simulation device sends an execution instruction to the automobile instrument panel in a single signal mode.
An automatic test system of automobile instrument signals, based on the automatic test method of the automobile instrument signals, comprises an upper simulation device and an automobile instrument panel, the automobile instrument panel is electrically connected with an upper simulation device, the upper simulation device is used for sending instructions to the automobile instrument panel and receiving feedback information of the automobile instrument panel, the automobile instrument panel is used for responding according to an instruction sent by the upper simulation device, the automobile instrument panel is provided with a first camera and a second camera, the first camera and the second camera are respectively used for collecting response information of the automobile instrument panel, and the response information collected by the first camera and the response information collected by the second camera are respectively transmitted to the upper simulation device, the upper simulation device analyzes according to the received response information to obtain a test result, and an analysis report is output.
The invention has the following beneficial technical effects:
compared with the prior art, the invention discloses an automatic test method for automobile instrument signals, which realizes automatic detection of various signals of an automobile instrument panel, can realize high-strength repeated pressure test, reduces the working strength of testers, greatly improves the test efficiency, reduces the development cost and releases human resources. Most importantly, according to the technical scheme, the first camera and the second camera are matched with each other to detect signals of the automobile instrument panel, and the second camera is used for verifying the abnormal conditions, so that the accuracy of signal detection is greatly improved, the product quality is favorably guaranteed, and the market share is improved.
Drawings
Fig. 1 is a schematic flow chart of an automated testing method for automobile instrument signals in embodiment 1.
Fig. 2 is a schematic diagram of a connection relationship among the host simulation apparatus, the dashboard of the vehicle, the first camera, and the second camera in embodiment 1.
Reference numerals:
1-upper simulation device, 2-automobile instrument panel, 3-first camera and 4-second camera.
The drawings are for illustrative purposes only and are not to be construed as limiting the patent; for the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted; the same or similar reference numerals correspond to the same or similar parts; the terms describing positional relationships in the drawings are for illustrative purposes only and are not to be construed as limiting the patent.
Detailed Description
The following detailed description of the preferred embodiments of the present invention, taken in conjunction with the accompanying drawings, will make the advantages and features of the invention easier to understand for those skilled in the art and will therefore make the scope of the invention more clearly defined.
Example 1:
as shown in fig. 1, the present embodiment provides an automatic test method for automobile instrument signals, based on an upper simulation device 1 and an automobile instrument panel 2 connected to the upper simulation device 1, the automobile instrument panel 2 is provided with a first camera 3 and a second camera 4, and the first camera 3 and the second camera 4 are respectively electrically connected to the upper simulation device 1.
An automatic test method for automobile instrument signals specifically comprises the following steps:
101. and establishing an icon sample database, wherein the icon sample database comprises the display states of all icons on the automobile instrument panel 2 under different scenes.
In this embodiment, the icon sample database may be established by sequentially collecting normal display states of the icons on the dashboard 2 in different situations, or may be directly imported into the existing icon sample database, which is not limited herein, as long as the icon sample database includes the normal display states of the icons on the dashboard 2 in different situations.
102. And sending an execution command to the automobile instrument panel 2 through the upper simulation device 1.
In this embodiment, the upper simulation device 1 can simulate each component of the automobile to send a corresponding execution instruction to the dashboard 2, for example, the upper simulation device 1 simulates a left turn light and sends an execution instruction for starting the left turn light to the dashboard 2, or the upper simulation device 1 simulates a fuel consumption signal and sends an execution instruction for displaying the fuel consumption to the dashboard 2. In this embodiment, the upper simulation device 1 sends an execution instruction to the dashboard 2 in a single signal mode, and if the turn signal is turned on and off ten thousand times in a test, then whether the turn signal is turned on and off normally every time is respectively determined, and if the turn signal can pass through smoothly in every test, it is determined that the turn signal icon is displayed normally. In order to ensure that the execution instruction sent by the upper simulation device 1 reaches the dashboard 2, that is, the execution instruction is received by the dashboard 2, a feedback mechanism is generally set for the dashboard 2 during the test process, that is, when the dashboard 2 receives the execution instruction, a corresponding feedback signal is sent to the upper simulation device 1. After the upper simulation device 1 receives the feedback signal, the automobile instrument panel 2 has received an effective execution instruction, and once the automobile instrument panel 2 displays an abnormal state, the problem of the upper simulation device 1 or a connecting line can be timely eliminated, so that the problem can be quickly found out by an inspector conveniently. Of course, if the upper simulation device 1 does not receive the feedback information within the preset time after sending the execution instruction, it means that the connection line between the upper simulation device 1 and the dashboard 2 has a problem, and only needs to be checked in time at this time, thereby greatly improving the efficiency of searching for the problem.
Of course, the instrument panel 2 may be directly connected to the vehicle, and each component on the vehicle may be directly connected to the instrument panel 2, and the display function of the instrument panel 2 may be detected by using each component of the vehicle instead of the upper simulation apparatus 1. If the dashboard 2 is directly connected to the vehicle for testing, before the specific test, it is necessary to check whether the connection of the CAN (Controller Area Network) board of the vehicle is normal, for example, to send an initialization signal, and determine whether the connection is normal by obtaining the feedback information of the CAN board. After the connection of the CAN board is confirmed to be normal, it is further required to check whether a key door switch acc (accesses) of the vehicle is opened or not, so as to confirm whether various electronic parts on the vehicle are in a working state or not, and whether an execution instruction CAN be normally sent or not. Once various electronic parts on the automobile are confirmed to be in working states, workers can control different electronic parts to send execution instructions to an automobile instrument panel to start detection.
103. The automobile instrument panel 2 makes a matched response action according to the execution instruction.
After receiving the execution instruction, the dashboard 2 will perform a response action matching the execution instruction according to the preset program. If the execution instruction received by the dashboard 2 is that the left turn light is turned on, the icon corresponding to the left turn light on the dashboard 2 is turned on according to a preset mode, and if the icon corresponding to the left turn light is turned on, blinks or is turned off after being turned on for a period of time, etc. Of course, the display mode of each icon on the dashboard 2 is set by the operator according to the actual needs, and is not limited herein. In addition, the staff also can adjust the detection order of each spare part on the car according to the demand to satisfy customer's variety demand.
104. And acquiring and recording the response action through the first camera 3 to acquire first response information.
Specifically, once the upper simulation device 1 receives the feedback signal, the upper simulation device 1 controls the first camera 3 to be turned on, and the corresponding action of the dashboard 2 is continuously collected and recorded through the first camera 3, so as to obtain the first response information. Subsequently, the first camera 3 transmits the first response information to the upper simulation device 1, so that the upper simulation device 1 analyzes and compares the first response information to obtain a detection result.
105. And extracting the display state of the target icon from the first response information, matching the display state of the target icon with the icon sample database, and determining the scene information corresponding to the target icon.
After receiving the first response information, the upper simulation device 1 firstly screens and positions each icon in the video or picture to find out the target icon being detected, then analyzes feature data such as shape parameters, color parameters, flashing frequency, and continuous display time (continuous lighting time) of the target icon, compares the obtained feature data with an icon sample database, and finds out scenario information matched with the feature data of the target icon, that is, under what scenario, the target icon may have the feature data. In this embodiment, the specific analysis process of the shape parameter, the color parameter, the flashing frequency and the continuous display time of the target icon may be performed by using the prior art in the field and will not be described in detail herein.
106. Verifying whether the scene information corresponding to the target icon is matched with the execution instruction, and if so, displaying the target icon normally; otherwise, the target icon is displayed abnormally.
Once the context information of the target icon is confirmed, the context information may be matched with the execution instruction sent by the upper simulation apparatus 1, that is, it is to be confirmed whether the context information corresponding to the target icon is consistent with the execution instruction received by the dashboard 2, that is, whether the execution instruction sent by the upper simulation apparatus 1 causes the target icon to appear in the feature data in step 105. If the scene information is successfully matched with the execution command sent by the upper simulation device 1, it means that the dashboard 2 executes the action required to be executed by the upper execution command, and the target icon display is normal. If the situation information is not matched with the execution instruction sent by the upper simulation device 1 successfully, it indicates that the automobile instrument panel 2 is not executed or is executed incorrectly for the execution instruction sent by the upper simulation device 1, and at this time, the target icon is displayed abnormally.
If the scene information is successfully matched with the execution instruction sent by the upper simulation device 1, and the target icon is displayed normally, the upper simulation device 1 can continue to send a closing instruction to the automobile instrument panel 2, the first camera 3 continues to be used for collecting the response action of the automobile instrument panel 2 to the closing instruction, whether the response action of the target icon to the closing instruction is correct or not is analyzed by adopting a similar judgment process, and if the target icon makes the response action matched with the closing instruction, a test cycle is indicated to be finished. The device may be shut down at this point to end the test, although the next test cycle may be entered.
Preferably, in order to further verify the target icon with the abnormality displayed in step 106, so as to improve the detection accuracy of the target icon, an abnormality verification step for the target icon is further included after step 106. Specifically, in the detection process of step 106, if it is found that the target icon is displayed abnormally, the second camera 4 is started, and an abnormality verification step is performed, in the process of the abnormality verification step, the second camera 4 needs to be used to collect and record the response action again to obtain the second response information. The icon to be verified is embodied in the second response information by the target icon. The second response information is transmitted to the upper simulation device 1, the upper simulation device 1 extracts the display state of the icon to be verified from the second response information, matches the display state of the icon to be verified with the icon sample database, and determines the scenario information corresponding to the icon to be verified. The contextual information analysis process of the icon to be verified is similar to that of the target icon. When the contextual information corresponding to the icon to be verified is consistent with the contextual information corresponding to the target icon, the contextual information corresponding to the icon to be verified is not matched with the execution instruction, and the target icon can be confirmed to be abnormal in display. The arrangement of the second camera 4 is equivalent to the verification of the abnormal icon, so that the error of the first camera 3 in the detection process is avoided, and the misguidance to the working personnel is avoided.
In this embodiment, the first response information may be video information or picture information. The second response signal may also be video information or picture information, and the information types of the first response signal and the second response signal may be appropriately adjusted according to the response action of the target icon, which is not specifically limited herein.
Preferably, the response action comprises signal continuous display, signal discontinuous display or signal preset reset display. Specifically, when the response action is continuously displayed as a signal, the first response information is video information, the first response information is obtained by continuously monitoring the target icon by the first camera 3, and at this time, the first response information is video information; in the process of the abnormal verification, the target icon to be verified is captured by the second camera 4, and the second response signal is picture information. When the response action is intermittently displayed as a signal, at this time, the first camera is used for capturing the target icon, that is, when the first camera is used for capturing the target icon in a flashing state to obtain first response information, the first response information includes both a picture in which the target icon is on and a picture in which the target icon is off, at this time, the scene information of the target icon cannot be accurately determined, and the probability that the display of the target icon is abnormal is increased. At this time, the second camera 4 needs to be used to record the screen of the target icon to be verified in a short time, so as to obtain the second response information to obtain the flashing frequency of the target icon, and the scene information corresponding to the target to be verified is determined again through the flashing frequency, so as to correct or verify the detection result of the target icon. When the response action is preset as a signal for reset display, the first response information and the second response information are both video information, wherein the first response information is obtained by continuously monitoring the target icon through the first camera 3, and if the upper simulation device analyzes that the target icon is displayed abnormally according to the first response information, the second camera 4 is continuously utilized to record the screen of the target icon to be verified for a short time, so that the second response information is obtained. And analyzing the continuous lighting time of the target icon by the upper simulation device according to the second response information, and verifying the detection result of the abnormal display of the target icon again.
Example 2:
as shown in fig. 2, the present embodiment discloses an automatic test system for automobile instrument signals, which is based on the automatic test method for automobile instrument signals disclosed in embodiment 1, and includes an upper simulation device 1 and an automobile instrument panel 2. The motormeter dish 2 and host simulation device 1 electric connection, host simulation device 1 is used for sending the instruction to motormeter dish 2 and receiving motormeter dish 2's feedback information. The automobile instrument panel 2 is used for responding according to an instruction sent by the upper simulation device 1, and the automobile instrument panel 2 is provided with a first camera 3 and a second camera 4. The first camera 3 and the second camera 4 are respectively used for acquiring response information of the automobile instrument panel 2, the response information acquired by the first camera 3 and the response information acquired by the second camera 4 are respectively transmitted to the upper simulation device 1, the upper simulation device 1 analyzes and obtains a test result according to the received response information, and an analysis report is output.
It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (5)
1. The automatic test method of the motormeter signal is characterized in that based on an upper simulation device (1) and a motormeter panel (2) connected with the upper simulation device (1), the motormeter panel (2) is provided with a first camera (3) and a second camera (4), and the first camera (3) and the second camera (4) are respectively and electrically connected with the upper simulation device (1), and the method comprises the following steps:
establishing an icon sample database, wherein the icon sample database comprises display states of all icons on an automobile instrument panel (2) under different scenes;
sending an execution instruction to an automobile instrument panel (2) through an upper simulation device (1);
the automobile instrument panel (2) makes a matched response action according to the execution instruction;
collecting and recording the response action through a first camera (3) to acquire first response information;
extracting the display state of the target icon from the first response information, matching the display state of the target icon with an icon sample database, and determining the scene information corresponding to the target icon;
verifying whether the scene information corresponding to the target icon is matched with the execution instruction, and if so, displaying the target icon normally; the upper simulation device (1) continues to send a closing instruction to the automobile instrument panel (2), the first camera (3) continues to be used for collecting the response action of the automobile instrument panel (2) to the closing instruction, whether the response action of the target icon to the closing instruction is correct or not is analyzed, and if the target icon makes the response action matched with the closing instruction, a test cycle is finished; otherwise, displaying the target icon to be abnormal, and executing an abnormal verification step;
the anomaly verification step comprises:
when the target icon is displayed abnormally, the second camera (4) is used for collecting and recording the response action again so as to acquire second response information;
extracting the display state of the icon to be verified from the second response information, matching the display state of the icon to be verified with the icon sample database, and determining the scene information corresponding to the icon to be verified;
when the scene information corresponding to the icon to be verified is consistent with the scene information corresponding to the target icon, confirming that the target icon is displayed abnormally;
when the response action is continuously displayed as a signal, the first response information is video information, and the second response information is picture information; the first response information is obtained through continuous monitoring of the first camera (3) on the target icon, and the second response information is obtained through snapshot of the icon to be verified by the second camera (4);
when the response action is displayed intermittently as a signal, a first camera (3) is used for capturing a target icon in a flashing state to obtain first response information, a second camera (4) is used for recording a screen of the target icon to be verified in a short time to obtain second response information to obtain the flashing frequency of the target icon, and scene information corresponding to the target to be verified is re-determined through the flashing frequency to correct or verify the detection result of the target icon;
when the response action is displayed as a signal preset reset, the first response information and the second response information are video information, the first response signal is obtained by continuously monitoring the target icon through the first camera (3), if the upper simulation device analyzes that the target icon is displayed abnormally according to the first response information, the second camera (4) is continuously utilized to record the screen of the target icon to be verified in a short time, the second response information is obtained, the upper simulation device analyzes the time for continuously lighting the target icon according to the second response information, and the detection result of the abnormal display of the target icon is verified again.
2. The method for automatically testing automobile instrument signals as claimed in claim 1, wherein the target icon and the icon to be verified are matched with an icon sample database through color parameters, shape parameters, flashing frequency or continuous display time.
3. The method for automatically testing motormeter signals according to claim 1, characterized in that when the motormeter panel (2) receives the execution command, a corresponding feedback signal is sent to the upper simulation device (1).
4. The method for automatically testing the automobile instrument signal as claimed in claim 1, wherein the upper simulation device (1) sends an execution instruction to the automobile instrument panel (2) in a single signal mode.
5. An automatic test system of automobile instrument signals, based on the automatic test method of automobile instrument signals of any one of claims 1-4, characterized by comprising an upper simulation device (1) and an automobile instrument panel (2), wherein the automobile instrument panel (2) is electrically connected with the upper simulation device (1), the upper simulation device (1) is used for sending instructions to the automobile instrument panel (2) and receiving feedback information of the automobile instrument panel (2), the automobile instrument panel (2) is used for responding according to the instructions sent by the upper simulation device (1), the automobile instrument panel (2) is provided with a first camera (3) and a second camera (4), the first camera (3) and the second camera (4) are respectively used for collecting response information of the automobile instrument panel (2), and the response information collected by the first camera (3) and the response information collected by the second camera (4) are respectively collected by the first camera (3) And the data are transmitted to the upper simulation device (1), the upper simulation device (1) analyzes the received response information to obtain a test result, and outputs an analysis report.
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| CN113110909A (en) * | 2021-04-20 | 2021-07-13 | 肇庆小鹏汽车有限公司 | Vehicle instrument testing method and device |
| CN113758514B (en) * | 2021-07-29 | 2024-04-26 | 江铃汽车股份有限公司 | Automatic test method and system for automobile instrument, readable storage medium and vehicle |
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