Vehicle-mounted display screen flicker detection method, device and equipment and storage medium

Abstract

The invention relates to the technical field of screen detection, in particular to a vehicle-mounted display screen flicker detection method and device, equipment and a storage medium. According to the method, the light intensity time change curve of the display screen to be tested under the specific test video is obtained, the light intensity fluctuation condition of the screen to be tested is analyzed according to the curve, the light intensity abnormal fluctuation period is determined, the light intensity change direction is considered, the flicker type abnormal frequency is calculated, and corresponding measures are taken according to the flicker frequency. For example, display parameters are adjusted or display screen replacement is prompted. According to the method, the flicker problem can be monitored in real time and accurately recognized, and the display setting is automatically adjusted to relieve or eliminate flicker, so that the display quality and the driving safety of the vehicle-mounted display screen are improved.

Description

Technical Field

[0001] The present invention relates to the field of screen detection technology, and in particular to a method, device, equipment and storage medium for detecting flicker of a vehicle-mounted display screen. Background Art

[0002] With the advent of the digital age, in-vehicle display technology has become an indispensable part of modern cars. From simple dashboards to complex infotainment systems, in-vehicle displays not only provide drivers with necessary vehicle information, but also provide multiple functions such as navigation, entertainment and communication. With the development of technology, the resolution, color performance and response speed of in-vehicle displays have been significantly improved, but it has also brought new challenges, especially in terms of stability and reliability in dynamic environments.

[0003] Among the many problems of in-vehicle displays, flicker is particularly prominent. Flicker not only affects the driver's reading experience, but may also distract the driver, thereby increasing the risk of traffic accidents. Flicker problems may be caused by a variety of factors, including hardware defects of the display, deficiencies in software algorithms, changes in ambient light, etc. As the functions of in-vehicle displays become increasingly complex, for example, there are some relatively wide long screens or special-shaped screens on the market. When these screens leave the factory, they are not a whole piece but are made up of multiple sub-screens. Since the probes for detecting screen flicker are generally used for local detection, if the detection probe does not detect the sub-screen with flicker problems, it is easy to miss the detection.

[0004] Therefore, how to effectively detect and solve the flicker problem of the vehicle display screen to ensure driving safety and improve user experience has become an urgent problem to be solved in this field. Summary of the invention

[0005] The main purpose of the present invention is to provide a method, device, equipment and storage medium for detecting flicker of a vehicle display screen, aiming to solve the technical problem of how to effectively detect and solve the flicker problem of the vehicle display screen in the prior art to ensure driving safety and improve user experience.

[0006] To achieve the above object, the present invention provides a method for detecting flicker of a vehicle display screen, the method comprising the following steps: Obtain the time variation curve of the light intensity of the screen to be tested; Determining light intensity fluctuation data according to the light intensity time variation curve; The flicker detection result of the vehicle-mounted screen is obtained according to the light intensity fluctuation data.

[0007] Optionally, obtaining the light intensity time variation curve of the screen to be tested includes: Acquire display parameters of the screen to be tested, wherein the display parameters include display resolution and display frame rate; Generate a partition delay test video according to the display parameters; Control the screen to be tested to play the partition delay test video, and obtain the light intensity change data of the screen to be tested during the playback process; The light intensity time variation curve is obtained according to the light intensity variation data.

[0008] Optionally, determining the light intensity fluctuation data according to the light intensity time variation curve includes: According to the light intensity time variation curve and the sampling period, the light intensity variation in each sampling period is obtained; Determining the abnormal light intensity fluctuation period according to the light intensity variation and the reference variation; The light intensity variation data of the light intensity abnormal fluctuation period is used as the light intensity fluctuation data.

[0009] Optionally, determining the abnormal light intensity fluctuation period according to the light intensity variation and the reference variation includes: When the light intensity variation is greater than the reference variation, a light intensity variation overflow ratio is obtained according to the light intensity variation and the reference variation; When the light intensity change overflow ratio is greater than the preset fluctuation ratio, the sampling period corresponding to the current light intensity change amount is used as the light intensity abnormal fluctuation period.

[0010] Optionally, determining the abnormal light intensity fluctuation period according to the light intensity variation and the reference variation further includes: When the direction of the light intensity variation is opposite to the direction of the reference variation, the sampling period corresponding to the current light intensity variation is used as the abnormal light intensity fluctuation period.

[0011] Optionally, obtaining the flicker detection result of the vehicle-mounted screen according to the light intensity fluctuation data includes: According to the light intensity fluctuation data, the number of flickering anomalies of the vehicle-mounted screen is obtained; According to the number of flicker-type anomalies, a flicker detection result of the vehicle-mounted screen is obtained.

[0012] Optionally, obtaining the flicker detection result of the vehicle-mounted screen according to the number of flicker-related anomalies includes: When the number of flicker-type abnormalities is greater than the first flicker number threshold and less than the second flicker number threshold, it is determined that the current vehicle screen has a general fault degree, and the display resolution and display frame rate of the vehicle screen are reduced; When the number of flickering anomalies is greater than the second flickering number threshold, it is determined that the current vehicle screen has a serious fault, and a replacement prompt message is displayed on the vehicle screen until the current vehicle screen is replaced.

[0013] In addition, to achieve the above-mentioned purpose, the present invention also proposes a vehicle-mounted display screen flicker detection device, the vehicle-mounted display screen flicker detection device comprising: A data acquisition module, used to obtain the light intensity time variation curve of the screen to be tested; A data processing module, used to determine light intensity fluctuation data according to the light intensity time variation curve; The screen quality analysis module is used to obtain the flicker detection result of the vehicle-mounted screen according to the light intensity fluctuation data.

[0014] In addition, to achieve the above-mentioned purpose, the present invention also proposes a vehicle-mounted display screen flicker detection device, which includes: a memory, a processor, and a vehicle-mounted display screen flicker detection program stored in the memory and executable on the processor, and the vehicle-mounted display screen flicker detection program is configured to implement the steps of the vehicle-mounted display screen flicker detection method described above.

[0015] In addition, to achieve the above objectives, the present invention also proposes a storage medium, on which a vehicle display screen flicker detection program is stored. When the vehicle display screen flicker detection program is executed by a processor, the steps of the vehicle display screen flicker detection method described above are implemented.

[0016] One or more technical solutions proposed in this application have at least the following technical effects: This application obtains the light intensity time variation curve of the display screen to be tested under a specific test video, analyzes the light intensity fluctuation of the screen to be tested according to the curve, determines the abnormal light intensity fluctuation period, considers the direction of light intensity change, calculates the number of flicker-like abnormalities, and takes corresponding measures according to the number of flickers, such as adjusting display parameters or prompting to replace the display screen. This method can monitor and accurately identify flicker problems in real time, automatically adjust display settings to reduce or eliminate flicker, thereby improving the display quality and driving safety of the vehicle display. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0019] Figure 1 A schematic diagram of the flow chart of the first embodiment of the vehicle display screen flicker detection method of the present invention; Figure 2A schematic diagram of a flow chart of a second embodiment of a vehicle display screen flicker detection method according to the present invention; Figure 3 It is a structural block diagram of the first embodiment of the vehicle display screen flicker detection device of the present invention; Figure 4 It is a structural schematic diagram of a vehicle display screen flicker detection device in a hardware operating environment involved in an embodiment of the present invention.

[0020] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0021] It should be understood that the specific embodiments described herein are only used to explain the technical solutions of the present application and are not used to limit the present application.

[0022] In order to better understand the technical solution of the present application, a detailed description will be given below in conjunction with the accompanying drawings and specific implementation methods.

[0023] The main solution of the embodiment of the present application is: obtaining the light intensity time variation curve of the screen to be tested; determining the light intensity fluctuation data based on the light intensity time variation curve; and obtaining the flicker detection result of the vehicle-mounted screen based on the light intensity fluctuation data.

[0024] Among the many problems of in-vehicle displays, flicker is particularly prominent. Flicker not only affects the driver's reading experience, but may also distract the driver, thereby increasing the risk of traffic accidents. Flicker problems may be caused by a variety of factors, including hardware defects of the display, deficiencies in software algorithms, changes in ambient light, etc. As the functions of in-vehicle displays become increasingly complex, for example, there are some relatively wide long screens or special-shaped screens on the market. When these screens leave the factory, they are not a whole piece but are made up of multiple sub-screens. Since the probes for detecting screen flicker are generally used for local detection, if the detection probe does not detect the sub-screen with flicker problems, it is easy to miss the detection.

[0025] This application provides a solution, by obtaining the light intensity time variation curve of the display screen to be tested under a specific test video, analyzing the light intensity fluctuation of the screen to be tested according to the curve, determining the abnormal light intensity fluctuation period, considering the direction of light intensity change, calculating the number of flicker-like abnormalities, and taking corresponding measures according to the number of flickers, such as adjusting display parameters or prompting to replace the display screen. This method can monitor and accurately identify flicker problems in real time, automatically adjust display settings to reduce or eliminate flicker, thereby improving the display quality and driving safety of the vehicle display.

[0026] Based on this, the embodiment of the present invention provides a method for detecting flicker of a vehicle display screen, referring to Figure 1 , Figure 1The figure is a flow chart of a first embodiment of a method for detecting flicker of a vehicle display screen according to the present invention.

[0027] In this embodiment, the vehicle display screen flicker detection method comprises the steps of: Step S10: Obtaining a time-varying curve of light intensity of the screen to be tested.

[0028] It should be noted that since the light intensity data of the screen is related to the brightness information of the video data it is playing, screens of different qualities will show different brightness under the same test video. Therefore, before the test begins, it is necessary to generate a test video adapted to the screen based on the display parameters of the screen to be tested.

[0029] It is understandable that due to the relatively large width of some long screens or special-shaped screens in the car screen, this kind of screen is not a whole piece when it leaves the factory but is composed of multiple sub-screens. Therefore, the screen with flickering problems may be just one of the sub-screens. If a global test is performed directly, it is easy to miss or fail to locate the module that actually has problems. Therefore, when generating a test video, the test video is generated according to the specification parameters reserved when the screen to be tested leaves the factory. The test video needs to ensure that there is a clear brightness difference between two adjacent sub-screens, and the brightness difference distribution is uniform. For example, assuming that a certain car-mounted long screen is composed of three screens, then the test video should be divided into three areas, and each area should play the same video content, but the difference is that there is a fixed time delay when playing between the three areas. In this way, theoretically, the brightness change curves of the three screens are directly collected, and the result should be that they can be completely overlapped through a small translation. The non-overlapping part is the screen display abnormality, that is, these non-overlapping sampling time points may have flickered.

[0030] In one embodiment, obtaining the light intensity time variation curve of the screen to be tested includes: obtaining display parameters of the screen to be tested, wherein the display parameters include display resolution and display frame rate; generating a partition delay test video according to the display parameters; controlling the screen to be tested to play the partition delay test video, and obtaining light intensity change data of the screen to be tested during the playback process; and obtaining the light intensity time variation curve according to the light intensity change data.

[0031] It should be understood that the light intensity data of the screen is closely related to the brightness information of the video content it plays. This means that even if it is the same test video, the brightness displayed will be different when played on screens of different qualities. Therefore, in order to ensure the accuracy of the test, a test video specifically adapted to the screen must be generated according to the display parameters of the screen to be tested (such as resolution and frame rate) before the test begins. In order to simplify subsequent data processing and abnormality identification, the main content of the test video should be a test video in which the screen brightness can change linearly or in steps.

[0032] It should be noted that a linearly changing test video refers to a video whose brightness changes evenly at a fixed rate over time. For example, the brightness can gradually increase linearly from full black to full white, or linearly transition between different brightness levels. This type of test video helps detect the consistency and uniformity of the screen's response over the entire brightness range. By analyzing the linear change in brightness, it is easier to identify abnormal behavior of the screen at a specific brightness level, such as uneven brightness or delayed response. A step-change test video refers to a video whose brightness changes suddenly between different discrete levels. For example, the video may quickly switch between full black, medium brightness, and full white. This type of test video helps detect the screen's switching ability and response speed between different brightness levels. It can help identify delays or desynchronization issues when the screen changes brightness, which can cause flickering or image tearing in dynamic image displays.

[0033] Step S20: determining light intensity fluctuation data according to the light intensity time variation curve.

[0034] It should be noted that the light intensity time variation curve is obtained by continuously sampling the light intensity of the vehicle display screen during the playback of the test video. This curve reflects the change of screen brightness over time and is the basic data for detecting flicker problems. Light intensity fluctuation data refers to the fluctuation of light intensity values ​​relative to time on the light intensity time variation curve. These fluctuations may be normal or abnormal fluctuations caused by screen hardware problems or improper software control. Abnormal fluctuations are often associated with flickering.

[0035] It is understandable that the occurrence of an abnormality does not mean the occurrence of flickering. For example, insufficient brightness or video freezes are not what needs to be detected in this application. Therefore, after determining the light intensity fluctuation data, it is necessary to further screen out the screen flickering conditions and frequency.

[0036] It should be understood that for each sampling point on the curve, the difference between its light intensity value and the light intensity value of the previous sampling point is calculated to obtain the change in light intensity. In the test video where the light intensity changes linearly, theoretically the change in light intensity should be the light intensity change rate multiplied by the sampling time difference. This value should be a fixed value. Similarly, when the light intensity changes in a step-by-step manner, the light intensity should remain unchanged during the time period in the center of the step, that is, the change value is zero. The light intensity difference on both sides of the step should be the difference in the light intensity step, which is also a fixed value. In addition, it should be noted that, in actual situations, the light intensity data of the vehicle display screen is indeed related to the brightness information of the video data it plays, but it will not change very accurately. This is because the screen hardware performance is limited and it is not a completely ideal physical situation. The change in light intensity can only be close to the theoretical value or try to maintain a theoretically stable change. There is a certain error between the light intensity change and the basic change value. In addition, the screen performance is also affected by factors such as the age of the screen. Therefore, the benchmark change set here is only used to judge whether the light intensity change is within the normal range. This benchmark can be a preset value based on the screen specifications or an empirical value derived from historical data. Generally speaking, as long as it is within this range, it can be considered that no abnormality has occurred.

[0037] Step S30: Obtaining the flicker detection result of the vehicle-mounted screen according to the light intensity fluctuation data.

[0038] In one embodiment, obtaining the flicker detection result of the vehicle screen based on the light intensity fluctuation data includes: obtaining the number of flicker-type abnormalities of the vehicle screen based on the light intensity fluctuation data; obtaining the flicker detection result of the vehicle screen based on the number of flicker-type abnormalities.

[0039] It can be understood that based on the number of flicker-type abnormalities, the flicker detection result of the vehicle screen is obtained, including: when the number of flicker-type abnormalities is greater than the first flicker number threshold and less than the second flicker number threshold, it is determined that the current vehicle screen failure degree is general, and the display resolution and display frame rate of the vehicle screen are reduced; when the number of flicker-type abnormalities is greater than the second flicker number threshold, it is determined that the current vehicle screen failure degree is serious, and a replacement prompt message is displayed on the vehicle screen until the current vehicle screen is replaced.

[0040] It should be understood that when analyzing light intensity fluctuation data, a clear standard is needed to determine what constitutes a flicker-type anomaly. This standard may be based on parameters such as the amplitude, frequency, or duration of light intensity changes. For example, if the light intensity changes exceed a preset threshold, or the changes are frequent and continuous, it may be defined as a flicker anomaly. After determining the standard for flicker anomalies, it is necessary to count the number of flicker anomalies that occur within a certain period of time, and this number will be used to assess the severity of the flicker problem.

[0041] It is understandable that according to the number and severity of flickering anomalies, the flicker detection result of the vehicle screen can be obtained, and this result may be divided into different levels, such as slight flickering, moderate flickering or severe flickering. In order to judge the severity of the flickering problem, two thresholds need to be set: the first flickering number threshold and the second flickering number threshold. These two thresholds are set based on empirical data, user comfort, safety standards or manufacturer specifications; for general-level flickering failures, the system may take measures to reduce the display resolution and frame rate of the vehicle screen. The purpose of this is to reduce the workload of the screen, which may help reduce the occurrence of flickering, and also reduce the driving risks caused by flickering problems. If the number of flickering anomalies exceeds the second threshold, the system will determine that there is a severe level of flickering failure on the vehicle screen, which indicates that the flickering problem may seriously affect the display quality and driving safety. For severe flickering failures, the system will display a replacement prompt message on the vehicle screen, suggesting that the user replace the screen as soon as possible. This is to ensure driving safety and avoid potential risks caused by display screen failures.

[0042] This embodiment obtains a light intensity time variation curve of the screen to be tested; determines light intensity fluctuation data based on the light intensity time variation curve; and obtains a flicker detection result of the vehicle-mounted screen based on the light intensity fluctuation data.

[0043] In summary, in this embodiment, by generating a test video that is compatible with the screen display parameters, controlling the vehicle screen to play the video and collecting its light intensity change data, a light intensity time change curve is obtained. Using this curve, the system analyzes the light intensity fluctuation data, identifies abnormal fluctuations, and determines the severity of the flicker problem based on the number of abnormalities. When the number of abnormalities is within a certain range, the system will reduce the screen resolution and frame rate to reduce flicker; if it exceeds the severity threshold, the user is prompted to replace the screen. This method can effectively locate and diagnose the flicker problem of the vehicle display screen and improve the accuracy and reliability of detection.

[0044] Based on the first embodiment of the present application, in the second embodiment of the present application, the same or similar contents as those in the above-mentioned embodiment 1 can be referred to the above introduction, and will not be repeated in the following. Figure 2 , the step S20 comprises: Step S201: obtaining the light intensity variation in each sampling period according to the light intensity time variation curve and the sampling period.

[0045] It should be noted that, in this embodiment, special equipment or sensors are required to continuously collect the light intensity data of the screen when playing the test video, so as to generate a light intensity time change curve. This curve records in detail the changes in screen brightness over time during the test process. Combined with the generation conditions of the test video, light intensity can be collected for each partition. In particular, for a vehicle-mounted display screen composed of multiple sub-screens, this method can ensure that the light intensity changes of each sub-screen are monitored separately and accurately.

[0046] Understandably, this method allows the test system to perform detailed analysis of each partition of the vehicle display, thereby accurately identifying which specific sub-screen has a flicker problem. This is especially important for long-linked or special-shaped screens, because these screens may not be a whole when they leave the factory, but a combination of multiple sub-screens. With this method, the source of the flicker problem can be accurately located, rather than just getting an overall test result.

[0047] Step S202: determining the abnormal light intensity fluctuation period according to the light intensity variation and the reference variation.

[0048] It should be noted that in the above steps, the actual measured light intensity change is compared with a preset reference change to determine whether there is an abnormal fluctuation period of light intensity. The basis of this method is that if the light intensity change exceeds this reference value, it may indicate that the screen is flickering or other abnormal conditions. In addition, the change of light intensity has both the direction and magnitude of the change.

[0049] In one embodiment, determining the abnormal light intensity fluctuation period based on the light intensity change and the benchmark change includes: when the light intensity change is greater than the benchmark change, obtaining the light intensity change overflow ratio based on the light intensity change and the benchmark change; when the light intensity change overflow ratio is greater than the preset fluctuation ratio, using the sampling period corresponding to the current light intensity change as the abnormal light intensity fluctuation period.

[0050] It is understandable that the key point of this method is how to set the reference change. This reference value may be based on the linear light change speed in the test video, or it may be based on the step-by-step light intensity change difference. Generally speaking, as long as the light intensity change is within the allowable error range of this value, the light intensity change in this sampling period can be considered normal and no abnormality has occurred.

[0051] Furthermore, when the direction of the light intensity variation is opposite to the direction of the reference variation, the sampling period corresponding to the current light intensity variation is used as the abnormal light intensity fluctuation period.

[0052] It should be understood that when the actual change direction of the light intensity is contrary to the preset change direction in the test video, then an abnormal situation must have occurred.

[0053] Step S203: taking the light intensity variation data of the light intensity abnormal fluctuation period as the light intensity fluctuation data.

[0054] It can be understood that through this step, all light intensity change data marked as abnormal fluctuations can be sorted out. These data will be used to determine the final flicker detection results, which is crucial for the subsequent diagnosis of screen flicker problems.

[0055] This embodiment obtains the light intensity variation in each sampling period through the light intensity time variation curve and the sampling period; determines the light intensity abnormal fluctuation period based on the light intensity variation and the reference variation; and uses the light intensity variation data of the light intensity abnormal fluctuation period as the light intensity fluctuation data.

[0056] In summary, in this embodiment, by accurately collecting light intensity data and generating a time change curve, detailed monitoring of each partition of the screen is achieved, which is particularly suitable for vehicle-mounted display screens composed of multiple sub-screens. This method can accurately identify and locate flicker problems, whether they occur on a single or multiple sub-screens. By setting the baseline change, this method not only considers the magnitude of the light intensity change, but also pays attention to the direction of the change, thereby improving the accuracy of flicker detection. This method helps to optimize the maintenance process, reduce maintenance costs, improve screen quality control, enhance user experience, and ensure driving safety. Through data-supported decision-making, this method also allows preventive maintenance and extends the service life of the screen, providing an effective tool for the screen manufacturing and maintenance industry, thereby significantly improving the overall reliability and performance of vehicle-mounted display technology.

[0057] This application also provides a vehicle-mounted display screen flicker detection device, please refer to Figure 3 , the vehicle-mounted display screen flicker detection device comprises: The data acquisition module 10 is used to obtain the light intensity time variation curve of the screen to be tested; A data processing module 20, used to determine light intensity fluctuation data according to the light intensity time variation curve; The screen quality analysis module 30 is used to obtain the flicker detection result of the vehicle-mounted screen according to the light intensity fluctuation data.

[0058] In one embodiment, the data acquisition module 10 is also used to obtain display parameters of the screen to be tested, wherein the display parameters include display resolution and display frame rate; generate a partition delay test video according to the display parameters; control the screen to be tested to play the partition delay test video, and obtain light intensity change data of the screen to be tested during the playback process; and obtain the light intensity time change curve according to the light intensity change data.

[0059] In one embodiment, the data processing module 20 is also used to obtain the light intensity change amount within each sampling period based on the light intensity time change curve and the sampling period; determine the light intensity abnormal fluctuation period based on the light intensity change amount and the benchmark change amount; and use the light intensity change data of the light intensity abnormal fluctuation period as the light intensity fluctuation data.

[0060] In one embodiment, the data processing module 20 is also used to obtain a light intensity change overflow ratio based on the light intensity change and the reference change when the light intensity change is greater than a reference change; when the light intensity change overflow ratio is greater than a preset fluctuation ratio, the sampling period corresponding to the current light intensity change is used as the light intensity abnormal fluctuation period.

[0061] In one embodiment, the data processing module 20 is further configured to use the sampling period corresponding to the current light intensity variation as the light intensity abnormal fluctuation period when the direction of the light intensity variation is opposite to the direction of the reference variation.

[0062] In one embodiment, the screen quality analysis module 30 is further used to obtain the number of flicker-type anomalies of the vehicle-mounted screen according to the light intensity fluctuation data; and obtain the flicker detection result of the vehicle-mounted screen according to the number of flicker-type anomalies.

[0063] In one embodiment, the screen quality analysis module 30 is also used to determine that the current vehicle screen has a general fault degree when the number of flicker-type abnormalities is greater than a first flicker count threshold and less than a second flicker count threshold, and to reduce the display resolution and display frame rate of the vehicle screen; when the number of flicker-type abnormalities is greater than the second flicker count threshold, it is determined that the current vehicle screen has a serious fault degree, and a replacement prompt is displayed on the vehicle screen until the current vehicle screen is replaced.

[0064] The vehicle-mounted display screen flicker detection device provided by the present application adopts the vehicle-mounted display screen flicker detection method in the above-mentioned embodiment, which can solve the technical problem of how to effectively detect and solve the flicker problem of the vehicle-mounted display screen to ensure driving safety and improve user experience. Compared with the prior art, the beneficial effects of the vehicle-mounted display screen flicker detection device provided by the present application are the same as the beneficial effects of the vehicle-mounted display screen flicker detection method provided by the above-mentioned embodiment, and the other technical features of the vehicle-mounted display screen flicker detection device are the same as the features disclosed in the above-mentioned embodiment method, which will not be repeated here.

[0065] The present application provides a vehicle-mounted display screen flicker detection device, which includes: at least one processor; and a memory communicatively connected to the at least one processor; wherein the memory stores instructions executable by the at least one processor, and the instructions are executed by the at least one processor so that the at least one processor can execute the vehicle-mounted display screen flicker detection method in the above-mentioned embodiment one.

[0066] Reference below Figure 4 , which shows a schematic diagram of the structure of a vehicle-mounted display screen flicker detection device suitable for implementing the embodiment of the present application. The vehicle-mounted display screen flicker detection device in the embodiment of the present application may include but is not limited to mobile terminals such as mobile phones, laptop computers, digital broadcast receivers, PDAs (Personal Digital Assistants), PADs (Portable Application Descriptions), PMPs (Portable Media Players), vehicle-mounted terminals (such as vehicle-mounted navigation terminals), etc., and fixed terminals such as digital TVs, desktop computers, etc. Figure 4 The vehicle-mounted display screen flicker detection device shown is merely an example and should not bring any limitation to the functions and scope of use of the embodiments of the present application.

[0067] like Figure 4As shown, the vehicle-mounted display screen flicker detection device may include a processing device 1001 (such as a central processing unit, a graphics processor, etc.), which can perform various appropriate actions and processes according to the program stored in the read-only memory (ROM: Read Only Memory) 1002 or the program loaded from the storage device 1003 to the random access memory (RAM: Random Access Memory) 1004. In RAM1004, various programs and data required for the operation of the vehicle-mounted display screen flicker detection device are also stored. The processing device 1001, ROM1002 and RAM1004 are connected to each other through a bus 1005. An input / output (I / O) interface 1006 is also connected to the bus. Generally, the following systems can be connected to the I / O interface 1006: an input device 1007 including, for example, a touch screen, a touch pad, a keyboard, a mouse, an image sensor, a microphone, an accelerometer, a gyroscope, etc.; an output device 1008 including, for example, a liquid crystal display (LCD: Liquid Crystal Display), a speaker, a vibrator, etc.; a storage device 1003 including, for example, a magnetic tape, a hard disk, etc.; and a communication device 1009. The communication device 1009 can allow the vehicle-mounted display screen flicker detection device to communicate with other devices wirelessly or by wire to exchange data. Although the figure shows a vehicle-mounted display screen flicker detection device with various systems, it should be understood that it is not required to implement or have all the systems shown. More or fewer systems can be implemented or provided instead.

[0068] In particular, according to the embodiments disclosed in the present application, the process described above with reference to the flowchart can be implemented as a computer software program. For example, the embodiments disclosed in the present application include a computer program product, which includes a computer program carried on a computer-readable medium, and the computer program includes a program code for executing the method shown in the flowchart. In such an embodiment, the computer program can be downloaded and installed from a network through a communication device, or installed from a storage device 1003, or installed from a ROM 1002. When the computer program is executed by the processing device 1001, the above-mentioned functions defined in the method of the embodiment disclosed in the present application are executed.

[0069] The vehicle-mounted display screen flicker detection device provided by the present application adopts the vehicle-mounted display screen flicker detection method in the above-mentioned embodiment, which can solve the technical problem of how to effectively detect and solve the flicker problem of the vehicle-mounted display screen to ensure driving safety and improve user experience. Compared with the prior art, the beneficial effects of the vehicle-mounted display screen flicker detection device provided by the present application are the same as the beneficial effects of the vehicle-mounted display screen flicker detection method provided by the above-mentioned embodiment, and the other technical features of the vehicle-mounted display screen flicker detection device are the same as the features disclosed in the method of the previous embodiment, which will not be repeated here.

[0070] It should be understood that the various parts disclosed in this application can be implemented by hardware, software, firmware or a combination thereof. In the description of the above embodiments, specific features, structures, materials or characteristics can be combined in any one or more embodiments or examples in a suitable manner.

[0071] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

[0072] The present application provides a computer-readable storage medium having computer-readable program instructions (ie, computer programs) stored thereon, and the computer-readable program instructions are used to execute the vehicle display screen flicker detection method in the above-mentioned embodiment.

[0073] The computer-readable storage medium provided in the present application may be, for example, a USB flash drive, but is not limited to electrical, magnetic, optical, electromagnetic, infrared, or semiconductor systems, systems or devices, or any combination of the above. More specific examples of computer-readable storage media may include, but are not limited to: an electrical connection with one or more wires, a portable computer disk, a hard disk, a random access memory (RAM: Random Access Memory), a read-only memory (ROM: Read Only Memory), an erasable programmable read-only memory (EPROM: Erasable Programmable Read Only Memory or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM: CD-Read Only Memory), an optical storage device, a magnetic storage device, or any suitable combination of the above. In this embodiment, the computer-readable storage medium may be any tangible medium containing or storing a program, which may be used by or in combination with an instruction execution system, system or device. The program code contained on the computer-readable storage medium may be transmitted using any appropriate medium, including but not limited to: wires, optical cables, RF (Radio Frequency: Radio Frequency), etc., or any suitable combination of the above.

[0074] The computer-readable storage medium may be included in the vehicle-mounted display screen flicker detection device; or may exist independently without being assembled into the vehicle-mounted display screen flicker detection device.

[0075] The computer-readable storage medium carries one or more programs. When the one or more programs are executed by the vehicle-mounted display screen flicker detection device, the vehicle-mounted display screen flicker detection device performs vehicle-mounted display screen flicker detection.

[0076] Computer program code for performing the operations of the present application may be written in one or more programming languages ​​or a combination thereof, including object-oriented programming languages ​​such as Java, Smalltalk, C++, and conventional procedural programming languages ​​such as "C" or similar programming languages. The program code may be executed entirely on the user's computer, partially on the user's computer, as a separate software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer through any type of network, including a local area network (LAN) or a wide area network (WAN), or may be connected to an external computer (e.g., via the Internet using an Internet service provider).

[0077] The flow chart and block diagram in the accompanying drawings illustrate the possible architecture, function and operation of the system, method and computer program product according to various embodiments of the present application. In this regard, each square box in the flow chart or block diagram can represent a module, a program segment or a part of a code, and the module, the program segment or a part of the code contains one or more executable instructions for realizing the specified logical function. It should also be noted that in some alternative implementations, the functions marked in the square box can also occur in a sequence different from that marked in the accompanying drawings. For example, two square boxes represented in succession can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, depending on the functions involved. It should also be noted that each square box in the block diagram and / or flow chart, and the combination of the square boxes in the block diagram and / or flow chart can be implemented with a dedicated hardware-based system that performs a specified function or operation, or can be implemented with a combination of dedicated hardware and computer instructions.

[0078] The modules involved in the embodiments described in this application may be implemented by software or hardware, wherein the name of the module does not constitute a limitation on the unit itself in some cases.

[0079] The readable storage medium provided in this application is a computer-readable storage medium, which stores computer-readable program instructions (i.e., computer programs) for executing the above-mentioned vehicle display screen flicker detection method, and can solve the technical problem of how to effectively detect and solve the flicker problem of the vehicle display screen to ensure driving safety and improve user experience. Compared with the prior art, the beneficial effects of the computer-readable storage medium provided in this application are the same as the beneficial effects of the vehicle display screen flicker detection method provided in the above-mentioned embodiment, and will not be repeated here.

[0080] The computer program product provided by the present application can solve the technical problem of detecting flicker of a vehicle display screen. Compared with the prior art, the beneficial effects of the computer program product provided by the present application are the same as the beneficial effects of the vehicle display screen flicker detection method provided by the above embodiment, and will not be described in detail here.

[0081] The above descriptions are only some embodiments of the present application, and are not intended to limit the patent scope of the present application. All equivalent structural changes made using the contents of the present application specification and drawings under the technical concept of the present application, or direct / indirect applications in other related technical fields are included in the patent protection scope of the present application.

Claims

1. A method for detecting flicker of a vehicle display screen, characterized in that: The vehicle-mounted display screen flicker detection method comprises: Obtain the time variation curve of the light intensity of the screen to be tested; Determining light intensity fluctuation data according to the light intensity time variation curve; The flicker detection result of the vehicle-mounted screen is obtained according to the light intensity fluctuation data.

2. The vehicle display screen flicker detection method according to claim 1, characterized in that: The step of obtaining a time-varying curve of light intensity of the screen to be tested comprises: Acquire display parameters of the screen to be tested, wherein the display parameters include display resolution and display frame rate; Generate a partition delay test video according to the display parameters; Control the screen to be tested to play the partition delay test video, and obtain the light intensity change data of the screen to be tested during the playback process; The light intensity time variation curve is obtained according to the light intensity variation data.

3. The vehicle-mounted display screen flicker detection method according to claim 1, characterized in that: Determining the light intensity fluctuation data according to the light intensity time variation curve includes: According to the light intensity time variation curve and the sampling period, the light intensity variation in each sampling period is obtained; Determining the abnormal light intensity fluctuation period according to the light intensity variation and the reference variation; The light intensity variation data of the light intensity abnormal fluctuation period is used as the light intensity fluctuation data.

4. The vehicle display screen flicker detection method according to claim 3, characterized in that: Determining the abnormal light intensity fluctuation period according to the light intensity variation and the reference variation includes: When the light intensity variation is greater than the reference variation, a light intensity variation overflow ratio is obtained according to the light intensity variation and the reference variation; When the light intensity change overflow ratio is greater than the preset fluctuation ratio, the sampling period corresponding to the current light intensity change amount is used as the light intensity abnormal fluctuation period.

5. The vehicle-mounted display screen flicker detection method according to claim 3, characterized in that: The step of determining the abnormal light intensity fluctuation period according to the light intensity variation and the reference variation further comprises: When the direction of the light intensity variation is opposite to the direction of the reference variation, the sampling period corresponding to the current light intensity variation is used as the abnormal light intensity fluctuation period.

6. The vehicle-mounted display screen flicker detection method according to claim 1, characterized in that: The step of obtaining the flicker detection result of the vehicle-mounted screen according to the light intensity fluctuation data includes: According to the light intensity fluctuation data, the number of flickering anomalies of the vehicle-mounted screen is obtained; According to the number of flicker-type anomalies, a flicker detection result of the vehicle-mounted screen is obtained.

7. The vehicle-mounted display screen flicker detection method according to claim 6, characterized in that: The step of obtaining the flicker detection result of the vehicle-mounted screen according to the number of flicker-type anomalies includes: When the number of flicker-type abnormalities is greater than the first flicker number threshold and less than the second flicker number threshold, it is determined that the current vehicle screen has a general fault degree, and the display resolution and display frame rate of the vehicle screen are reduced; When the number of flickering anomalies is greater than the second flickering number threshold, it is determined that the current vehicle screen has a serious fault, and a replacement prompt message is displayed on the vehicle screen until the current vehicle screen is replaced.

8. A vehicle-mounted display screen flicker detection device, characterized in that: The vehicle-mounted display screen flicker detection device comprises: A data acquisition module, used to obtain the light intensity time variation curve of the screen to be tested; A data processing module, used to determine light intensity fluctuation data according to the light intensity time variation curve; The screen quality analysis module is used to obtain the flicker detection result of the vehicle-mounted screen according to the light intensity fluctuation data.

9. A vehicle-mounted display screen flicker detection device, characterized in that: The vehicle display screen flicker detection device includes: a memory, a processor, and a vehicle display screen flicker detection program stored in the memory and executable on the processor, wherein the vehicle display screen flicker detection program is configured to implement the steps of the vehicle display screen flicker detection method as described in any one of claims 1 to 7.

10. A storage medium, characterized in that: The storage medium stores a vehicle display screen flicker detection program, and when the vehicle display screen flicker detection program is executed by the processor, the steps of the vehicle display screen flicker detection method according to any one of claims 1 to 7 are implemented.

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