A vehicle-mounted streaming media delay test system, method and storage medium
By using a combined test of RGB three-color lamp and white light in the vehicle streaming media delay test system, combined with battery power and structural parts softening processing, the problems of insufficient accuracy and high cost in the existing technology are solved, and high precision is achieved , low-cost streaming media delay automatic testing, suitable for production lines and R&D verification in the automotive electronics industry.
Patent Information
- Application Number
- CN202210936330.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2022-10-12
- Publication Date
- 2024-12-27
- Estimated Expiration
- 2042-10-12
AI Technical Summary
The existing streaming media delay testing methods have problems of insufficient accuracy and high cost, especially in production line production testing and development verification.
A vehicle-mounted streaming media delay testing system is designed, including an output unit, a collection unit and a processing module. Through the combined testing of RGB three-color lamps and white light lamps, combined with battery power and structural parts to reduce test errors, and Reduce system measurement errors through clearing operations.
It realizes a high-precision and low-cost streaming media delay automatic testing system, which is suitable for production lines and R&D verification in the automotive electronics industry, improving the credibility and portability of the test.
Smart Images

Figure CN115396662B_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the fields of virtual reality and measurement technology, and in particular to a vehicle-mounted streaming media delay test system, method and storage medium. Background Art
[0002] In-vehicle streaming media refers to the in-vehicle streaming media rearview mirror, which is a type of media that is transmitted and played at the same time; the in-vehicle streaming media camera captures the image behind the vehicle in real time and presents it on the display screen of the central rearview mirror without loss, observing the real situation behind the vehicle from the perspective of the camera. In-vehicle streaming media has the advantages of reducing visual blind spots and enhancing night vision capabilities, and delay is one of the most important parameters of in-vehicle streaming media. If the delay is too large, on the one hand, it will not be able to provide the driver with real-time images in a timely manner, creating a safety hazard, and on the other hand, it will cause discomfort such as dizziness to the user.
[0003] There are two existing methods for testing streaming media delay. One is to use a mobile phone to shoot while a stopwatch is running and compare the time difference between the stopwatch and the display screen. The other is to use LED running lights and high-speed cameras in the laboratory to calculate the time difference between the video source and the display screen. Although the principle of method one is simple, the refresh rate of the mobile phone camera and the display screen, as well as the accuracy of the stopwatch, cause large errors to the system, and the test results are not reliable. In method two, although the time interval of the LED running lights can be controlled and the refresh speed of the high-speed camera is fast, which solves the lack of accuracy of method one, the equipment is expensive, which is not conducive to production line testing or development verification. Summary of the invention
[0004] In view of this, the purpose of the present invention is to provide a vehicle-mounted streaming media delay test system, method and storage medium, which can improve the accuracy of existing test equipment and reduce costs, and facilitate verification testing in design, production and other links.
[0005] The vehicle-mounted streaming media delay test system described in the present invention is applied to any vehicle-mounted streaming media and at least includes: an output unit, a collection unit and a processing module; the processing module is respectively connected to the output unit and the collection unit for communication and provides power.
[0006] The output unit responds to the processing module and generates a detection light; the detection light is transmitted to the vehicle-mounted streaming media display screen through the vehicle-mounted streaming media camera.
[0007] The collection unit collects the detection light from the vehicle-mounted streaming media display screen and converts it into an electrical signal and sends it to the processing module for performing vehicle-mounted streaming media delay detection to obtain a detection result.
[0008] In the above technical solution, under the control of the processing module, the output unit executes color output, allowing the on-board streaming media camera to receive color and transmit it to the on-board streaming media display screen. The acquisition unit then acquires the color of the on-board streaming media display screen and processes it into an electrical signal and transmits it to the processing module for calculation to obtain the display test result. Among them, since the processing module can be battery-powered, the system is miniaturized and portable, which is convenient for production line and R&D test verification. At the same time, the structure of the three parts is simple and reasonable, providing a simple and easy streaming media delay automatic test system for the current on-board electronics industry.
[0009] Furthermore, the output unit at least includes: an RGB three-color lamp, a white light lamp, a circuit control board and structural parts.
[0010] The circuit control board is used to control the RGB three-color lamp and the white light lamp to emit detection light.
[0011] The structural member is used for softening the detection light.
[0012] In the above technical solution, the setting of RGB three-color lights and white light lights reduces the test error caused by a single light color through the method of testing the combination of four lights: R (red light), G (green light), B (blue light) and W (white light). Among them, the structural parts can use diffusers to soften and evenly process the light into non-glaring light, thereby improving the accuracy of the test.
[0013] Further, the acquisition unit at least includes: an RGB sensor signal processing circuit and a photodiode signal processing circuit;
[0014] The RGB sensor signal processing circuit is used to collect the detection light of the RGB three-color lamp, and process it into a first interrupt signal and a color judgment signal to be transmitted to the processing module.
[0015] A voltage comparator is provided in the photodiode signal processing circuit, and the photodiode signal processing circuit is used to collect the detection light of the white light lamp, and perform waveform shaping through the voltage comparator to form a second interrupt signal and transmit it to the processing module.
[0016] In the above technical solution, the RGB sensor can adopt the RGB sensor WSON008X2120, the RGB sensor is directly connected to the processing module, monitors the red, green and blue outputs of the streaming media display screen, and outputs an interrupt signal and a color judgment signal to the processing module through the processing circuit; the photodiode can adopt the photodiode S9219-01, and the voltage comparator can adopt LM393. The photodiode detects the white light output of the streaming media display screen, and after being processed by LM393, the output shaped waveform is sent to the processing module as an interrupt signal output.
[0017] Furthermore, the processing module at least includes: a key input module, an MCU and a display screen.
[0018] The key input module is used to output a detection light control signal to the circuit control board.
[0019] The MCU is used to process the first interrupt signal, the second interrupt signal and the color judgment signal to obtain a test result.
[0020] The display screen is used to display the test result.
[0021] In the above technical solution, the key input executes the action to control the RGB three-color lamp and the white light lamp to emit the required detection light. The MCU processes the signal interrupt signal and color judgment information transmitted by the acquisition unit, and displays the processing operation results on the display screen. The MCU can also be replaced by other CPUs, but is not limited to this, and the processing operation results are displayed on the display screen.
[0022] As another preferred embodiment, the present invention also provides a testing method using the above-mentioned testing system, wherein the testing method comprises the following steps:
[0023] S1: In the test system, the first delay time of four detection lights, RGB three-color lights and white light lights, from being emitted by the output unit to being received by the collection unit is tested respectively, and the first delay time is saved.
[0024] S2: Apply the test system to the vehicle-mounted streaming media to be tested, and test the second delay time of the four colors of light, RGB three-color light and white light, from being emitted by the output unit to being received by the collection unit.
[0025] S3: Subtract the second delay time from the first delay time of the four color lights to obtain a first test value, and calculate an average value of the first test value as a test result.
[0026] In the above technical solution, S1 is the delay clearing part, which is used to count the delay of the test system to reduce the system measurement and calculation error; S2 is the test part, which applies the test system to the vehicle-mounted streaming media to be tested; S3 is the test part, which subtracts the data tested during the S1 clearing operation from the test data of S2 during processing, and displays the average value. The setting of the delay clearing part eliminates the test error caused by the test system, and the response time is at the uS level, which meets the system mS level test requirements.
[0027] Furthermore, the test system at least includes:
[0028] An output unit is responsive to the processing module and generates a detection light.
[0029] A collection unit that collects the detection light from the vehicle-mounted streaming media display screen and converts it into an electrical signal.
[0030] A processing module for delay detection of in-vehicle streaming media.
[0031] In the above technical solution, the output unit is arranged in front of the vehicle-mounted streaming media camera, outputs detection light to the vehicle-mounted streaming media camera, and the detection light is transmitted to the vehicle-mounted streaming media display screen through the vehicle-mounted streaming media camera. The collection unit is arranged in front of the vehicle-mounted streaming media display screen, collects the detection light of the vehicle-mounted streaming media display screen and converts it into an electrical signal and sends it to the processing module for vehicle-mounted streaming media delay detection to obtain the detection result.
[0032] Furthermore, the S1 specifically includes:
[0033] S11: The processing module controls the output unit to turn on the RGB three-color lamp and the white light lamp to emit detection light, and starts timing.
[0034] S12: The acquisition unit converts the detection light emitted by the RGB three-color lamp into a first interrupt signal and a first color judgment signal, and converts the detection light emitted by the white light lamp into a second interrupt signal.
[0035] S13: The processing module receives the first interrupt signal, the second interrupt signal and the first color determination signal, and calculates first delay times of four types of detection light respectively.
[0036] In the above technical solution, for the delay clearing part, the RGB three-color lamp and the white light lamp processing module are turned on to start timing. The acquisition unit directly collects the detection light emitted by the output unit and processes it into an interrupt signal and a color judgment signal to transmit to the processing module. The processing module stops timing after receiving the interrupt signal and the color judgment signal. During the clearing operation, the acquisition unit is connected to the output unit to respectively count the system delay of the four colors of R, G, B and W emitted and received by the sensor, and save the data for subsequent testing.
[0037] Furthermore, the S2 specifically includes:
[0038] S21: The test system is applied to the vehicle-mounted streaming media to be tested. The processing module controls the output unit to turn on the RGB three-color lamp and the white light lamp as detection light of the vehicle-mounted streaming media camera, and starts timing. The detection light is transmitted to the vehicle-mounted streaming media display screen through the vehicle-mounted streaming media camera.
[0039] S22: The collection unit collects the detection light of the RGB three-color lamp, and processes it into a third interrupt signal and a second color judgment signal, which are transmitted to the processing module.
[0040] The collecting unit collects the detection light of the white light lamp, processes it into a fourth interrupt signal and transmits it to the processing module.
[0041] S23: The processing module receives the third interrupt signal, the fourth interrupt signal and the second color determination signal, and calculates the second delay time of the four detection lights respectively.
[0042] In the above technical scheme, for the test part, the test system is applied to the vehicle-mounted streaming media to be tested, the output unit is arranged in front of the vehicle-mounted streaming media camera, the acquisition unit is arranged in front of the vehicle-mounted streaming media display screen, the RGB three-color lamp and the white light lamp processing module are turned on to start timing, the acquisition module collects the detection light transmitted from the output module to the streaming media display screen end, and processes it into an interrupt signal and a color judgment signal to transmit to the processing module, the processing module stops timing after receiving the interrupt signal and the color judgment signal, and respectively counts the system delay of the four colors of R, G, B and W emitted and received by the sensor, and saves the data for subsequent testing.
[0043] Furthermore, the S3 specifically includes:
[0044] S31: Subtract the first delay time from the second delay time of the four color lights respectively, to obtain first test values of the four detection lights respectively.
[0045] S32: Calculate the average value of the first test value to obtain a test result and display it on the processing module.
[0046] In the above technical solution, for the test part, the test data of the test process is subtracted from the data tested during the zeroing operation, and the average value is statistically displayed, eliminating the test error caused by the test system. The response time is at the uS level, meeting the system's mS level testing requirements.
[0047] As another preferred embodiment, the present invention also provides a storage medium located in any processing system, wherein the storage medium includes a computer program executable by a processor, and the computer program is used to execute a vehicle-mounted streaming media delay test method as described above.
[0048] Compared with the prior art, the present invention has the following beneficial effects:
[0049] The present invention provides a simple and easy streaming media delay automatic testing system and method for the current vehicle-mounted electronics industry. On the one hand, a battery is arranged in the processing module to power the testing system, so that the system is miniaturized and portable. On the other hand, the system is composed of three parts: an output unit, a collection unit and a processing module that do not require precise optical design. The cost is low. The small size and low cost make the testing system convenient for production line and R&D test verification. At the same time, a method for testing a combination of four lights R (red light), G (green light), B (blue light) and W (white light) on the hardware reduces the test error caused by a single light color. A zeroing method is added during the test process to eliminate the test error caused by the delay of the test system and improve the test accuracy. BRIEF DESCRIPTION OF THE DRAWINGS
[0050] Figure 1 The present invention is a schematic diagram of a vehicle-mounted streaming media delay test system.
[0051] Figure 2 The present invention is a flow chart of a method for testing delay of vehicle-mounted streaming media.
[0052] Figure 3 The present invention provides a delay clearing flow chart of a vehicle-mounted streaming media delay testing method.
[0053] Figure 4 The present invention is a test flow chart of a vehicle-mounted streaming media delay test method. DETAILED DESCRIPTION
[0054] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. The drawings show preferred embodiments of the present invention. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein.
[0055] Please refer to Figure 1 In a preferred embodiment, the vehicle-mounted streaming media delay test system described in the present invention is applied to any vehicle-mounted streaming media, and at least includes: an output unit, a collection unit and a processing module; the processing module is respectively communicated with the output unit and the collection unit and provides power.
[0056] The output unit responds to the processing module and generates a detection light; the detection light is transmitted to the vehicle-mounted streaming media display screen through the vehicle-mounted streaming media camera.
[0057] The collection unit collects the detection light from the vehicle-mounted streaming media display screen and converts it into an electrical signal and sends it to the processing module for performing vehicle-mounted streaming media delay detection to obtain a detection result.
[0058] Among them, the output unit mainly outputs light to the on-board streaming media camera. It can output four detection pipelines of white light, red light, blue light and green light respectively as the light color input for camera image collection. The acquisition unit is used to complete the capture of on-board streaming media images. It is mainly composed of sensors and signal processing circuits. The collected information is sent to the processing module after processing. The processing module is the core of the test system, providing power to the output unit and the acquisition unit, providing control signals to the output unit, processing the signals transmitted by the acquisition unit, and displaying the calculation results on the display screen.
[0059] During the specific implementation process, under the control of the processing module, the output unit executes the output of the detection light, allowing the on-board streaming media camera to receive color and transmit it to the on-board streaming media display screen. The acquisition unit then collects the color of the on-board streaming media display screen and processes it into an electrical signal and transmits it to the processing module for calculation to obtain the display test result. Among them, since the processing module can be battery-powered, the system is miniaturized and portable, which is convenient for production lines and R&D test verification. At the same time, the structure of the three parts is simple and reasonable, providing a simple and easy-to-use streaming media delay automatic test system for the current on-board electronics industry.
[0060] In this embodiment, the output unit at least includes: an RGB three-color lamp, a white light lamp, a circuit control board and structural parts.
[0061] The circuit control board is used to control the RGB three-color lamp and the white light lamp to emit detection light.
[0062] The structural member is used for softening the detection light.
[0063] During the specific implementation process, the setting of RGB three-color lights and white light lights, through the method of testing the combination of four lights: R (red light), G (green light), B (blue light) and W (white light), reduces the test error caused by a single light color. Among them, the structural parts can use diffusers to soften and evenly process the light into non-glare light, thereby improving the test accuracy.
[0064] In this embodiment, the acquisition unit at least includes: an RGB sensor signal processing circuit and a photodiode signal processing circuit;
[0065] The RGB sensor signal processing circuit is used to collect the detection light of the RGB three-color lamp, and process it into a first interrupt signal and a color judgment signal to be transmitted to the processing module.
[0066] A voltage comparator is provided in the photodiode signal processing circuit, and the photodiode signal processing circuit is used to collect the detection light of the white light lamp, and perform waveform shaping through the voltage comparator to form a second interrupt signal and transmit it to the processing module.
[0067] During the specific implementation process, the RGB sensor can adopt the RGB sensor WSON008X2120, the RGB sensor is directly connected to the processing module, monitors the red, green and blue outputs of the streaming media display screen, and outputs an interrupt signal and a color judgment signal to the processing module through the processing circuit; the photodiode can adopt the photodiode S9219-01, and the voltage comparator can adopt LM393. The photodiode detects the white light output of the streaming media display screen, and after being processed by LM393, the output shaped waveform is sent to the processing module as an interrupt signal output.
[0068] In this embodiment, the processing module at least includes: a key input module, an MCU and a display screen.
[0069] The key input module is used to output a detection light control signal to the circuit control board.
[0070] The MCU is used to process the first interrupt signal, the second interrupt signal and the color judgment signal to obtain a test result.
[0071] The display screen is used to display the test result.
[0072] During the specific implementation process, the key input executes the action to control the RGB three-color lamp and the white light lamp to emit the required detection light. The MCU processes the signal interrupt signal and color judgment information transmitted by the acquisition unit, and displays the processing operation results on the display screen. The MCU can also be replaced by other CPUs, but is not limited to this, and the processing operation results are displayed on the display screen.
[0073] It should be understood that the processing module has already started timing when the output module is turned on, and stops timing upon receiving an interrupt signal transmitted from the acquisition module, thereby obtaining the delay time.
[0074] As another alternative, please refer to Figure 2 The present invention also provides a testing method using the above-mentioned testing system, the testing method comprising the following steps:
[0075] S1: In the test system, the first delay time of four detection lights, RGB three-color lights and white light lights, from being emitted by the output unit to being received by the collection unit is tested respectively, and the first delay time is saved.
[0076] S2: Apply the test system to the vehicle-mounted streaming media to be tested, and test the second delay time of the four colors of light, RGB three-color light and white light, from being emitted by the output unit to being received by the collection unit.
[0077] S3: Subtract the second delay time from the first delay time of the four color lights to obtain a first test value, and calculate an average value of the first test value as a test result.
[0078] During the specific implementation process, S1 is the delay clearing part, which is used to count the delay of the test system to reduce the system measurement and calculation error; S2 is the test part, which applies the test system to the vehicle-mounted streaming media to be tested; S3 is the test part, and the test data of S2 will be subtracted from the data tested during the S1 clearing operation during processing, and the average value will be statistically displayed. The setting of the delay clearing part eliminates the test error caused by the test system, and the response time is at the uS level, which meets the system mS level test requirements.
[0079] In this embodiment, the test system at least includes:
[0080] An output unit is responsive to the processing module and generates a detection light.
[0081] A collection unit that collects the detection light from the vehicle-mounted streaming media display screen and converts it into an electrical signal.
[0082] A processing module for delay detection of in-vehicle streaming media.
[0083] During the specific implementation process, the output unit is arranged in front of the vehicle-mounted streaming media camera, and outputs detection light to the vehicle-mounted streaming media camera. The detection light is transmitted to the vehicle-mounted streaming media display screen through the vehicle-mounted streaming media camera. The collection unit is arranged in front of the vehicle-mounted streaming media display screen, and collects the detection light of the vehicle-mounted streaming media display screen and converts it into an electrical signal and sends it to the processing module for vehicle-mounted streaming media delay detection to obtain the detection result.
[0084] Please refer to Figure 3 In this embodiment, S1 specifically includes:
[0085] S11: The processing module controls the output unit to turn on the RGB three-color lamp and the white light lamp to emit detection light, and starts timing.
[0086] S12: The acquisition unit converts the detection light emitted by the RGB three-color lamp into a first interrupt signal and a first color judgment signal, and converts the detection light emitted by the white light lamp into a second interrupt signal.
[0087] S13: The processing module receives the first interrupt signal, the second interrupt signal and the first color determination signal, and calculates first delay times of four types of detection light respectively.
[0088] Among them, INT_2 is the interrupt signal of the RGB three-color lamp, INT_1 is the interrupt signal of the white light lamp, and the color is identified by the color judgment signal. The first delay time of the four detection lights is Rt, Gt, Bt and Wt respectively. It should be understood that R is red light, B is blue light, B is green light, and W is white light. The following descriptions are also set for this purpose. Specifically, S1 is the delay clearing part. Turn on the RGB three-color lamp and the white light processing module to start timing. The acquisition unit directly collects the detection light emitted by the output unit and processes it into an interrupt signal and a color judgment signal to transmit to the processing module. The processing module stops timing after receiving the interrupt signal and the color judgment signal. During the clearing operation, the acquisition unit is connected to the output unit to respectively count the system delay time of the four color lights of R, G, B and W being emitted and received by the sensor, and save the data for subsequent testing.
[0089] Please refer to Figure 3 In this embodiment, S2 specifically includes:
[0090] S21: The test system is applied to the vehicle-mounted streaming media to be tested. The processing module controls the output unit to turn on the RGB three-color lamp and the white light lamp as detection light of the vehicle-mounted streaming media camera, and starts timing. The detection light is transmitted to the vehicle-mounted streaming media display screen through the vehicle-mounted streaming media camera.
[0091] S22: The collection unit collects the detection light of the RGB three-color lamp, and processes it into a third interrupt signal and a second color judgment signal, which are transmitted to the processing module.
[0092] The collecting unit collects the detection light of the white light lamp, processes it into a fourth interrupt signal and transmits it to the processing module.
[0093] S23: The processing module receives the third interrupt signal, the fourth interrupt signal and the second color determination signal, and calculates the second delay time of the four detection lights respectively.
[0094] Among them, INT_2 is the interrupt signal of the RGB three-color lamp, INT_1 is the interrupt signal of the white light lamp, and the color is identified by the color judgment signal. The second delay time of the four detection lights is TR, TG, TB and TW respectively. Specifically, S2 is the test part. The test system is applied to the vehicle-mounted streaming media to be tested, the output unit is arranged in front of the vehicle-mounted streaming media camera, and the acquisition unit is arranged in front of the vehicle-mounted streaming media display screen. The RGB three-color lamp and the white light lamp processing module are turned on to start timing. The acquisition module collects the detection light transmitted from the output module to the streaming media display screen, and processes it into an interrupt signal and a color judgment signal to transmit to the processing module. The processing module stops timing after receiving the interrupt signal and the color judgment signal, and respectively counts the system delay time of the four color lights R, G, B and W being emitted and received by the sensor, and saves the data for subsequent testing.
[0095] Please refer to Figure 3 In this embodiment, S3 specifically includes:
[0096] S31: Subtract the first delay time from the second delay time of the four color lights respectively, to obtain first test values of the four detection lights respectively.
[0097] S32: Calculate the average value of the first test value to obtain a test result and display it on the processing module.
[0098] In the specific implementation process, S3 is the test part, which subtracts the test data during the zeroing operation from the test data of the test process, and displays the average value, eliminating the test error caused by the test system. The response time is at the uS level, meeting the system's mS level test requirements.
[0099] As another preferred embodiment, the present invention also provides a storage medium located in any processing system, wherein the storage medium includes a computer program executable by a processor, and the computer program is used to execute a vehicle-mounted streaming media delay test method as described above.
[0100] Compared with the prior art, the present invention has the following beneficial effects:
[0101] The present invention provides a simple and easy streaming media delay automatic testing system and method for the current vehicle-mounted electronics industry. On the one hand, a battery is arranged in the processing module to power the testing system, so that the system is miniaturized and portable. On the other hand, the system is composed of three parts: an output unit, a collection unit and a processing module that do not require precise optical design. The cost is low. The small size and low cost make the testing system convenient for production line and R&D test verification. At the same time, a method for testing a combination of four lights R (red light), G (green light), B (blue light) and W (white light) on the hardware reduces the test error caused by a single light color. A zeroing method is added during the test process to eliminate the test error caused by the delay of the test system and improve the test accuracy.
[0102] Although example embodiments have been described herein with reference to the accompanying drawings, it should be understood that the above example embodiments are merely exemplary and are not intended to limit the scope of the present invention thereto. Various changes and modifications may be made therein by one of ordinary skill in the art without departing from the scope and spirit of the present invention. All such changes and modifications are intended to be included within the scope of the present invention as required by the appended claims.
[0103] Those skilled in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of the present invention.
[0104] The various system and method embodiments of the present invention can be implemented in hardware, or in software modules running on one or more processors, or in a combination thereof. It should be understood by those skilled in the art that a microprocessor or a digital signal processor (DSP) can be used in practice to implement some or all of the functions of some modules according to embodiments of the present invention. The present invention can also be implemented as a device program (e.g., a computer program and a computer program product) for executing part or all of the methods described herein. Such a program implementing the present invention can be stored on a computer-readable medium, or can have the form of one or more signals. Such a signal can be downloaded from an Internet website, or provided on a carrier signal, or provided in any other form.
[0105] In the several embodiments provided in this application, it should be understood that the disclosed systems and methods can be implemented in other ways. For example, the system embodiments described above are only illustrative, for example, the division of functions is only a logical function division, and there may be other division methods in actual implementation, such as multiple tools or components can be combined or integrated into another system, or some features can be ignored or not executed.
[0106] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.
[0107] Although the present invention is described in conjunction with the above specific embodiments, it is obvious that those skilled in the art can make many substitutions, modifications and changes according to the above content. Therefore, all such substitutions, improvements and changes are included in the spirit and scope of the appended claims.
Claims
1. A vehicle-mounted streaming media delay test method, characterized in that: A vehicle-mounted streaming media delay test system applied to any vehicle-mounted streaming media is adopted, and the vehicle-mounted streaming media delay test system at least comprises: an output unit, a collection unit and a processing module; the processing module is respectively connected to the output unit and the collection unit for communication and provides power supply; The output unit responds to the processing module and generates a detection light; the detection light is transmitted to the vehicle-mounted streaming media display screen through the vehicle-mounted streaming media camera; The collecting unit collects the detection light from the vehicle-mounted streaming media display screen and converts it into an electrical signal and sends it to the processing module for performing vehicle-mounted streaming media delay detection to obtain a detection result; The output unit at least includes: an RGB three-color lamp, a white light lamp, a circuit control board and structural parts; The circuit control board is used to control the RGB three-color lamp and the white light lamp to emit detection light; The structural member is used to soften the detection light; The acquisition unit at least includes: an RGB sensor signal processing circuit and a photodiode signal processing circuit; The RGB sensor signal processing circuit is used to collect the detection light of the RGB three-color lamp, and process it into a first interrupt signal and a color judgment signal to be transmitted to the processing module; A voltage comparator is provided in the photodiode signal processing circuit, and the photodiode signal processing circuit is used to collect the detection light of the white light lamp, and perform waveform shaping by the voltage comparator to form a second interrupt signal and transmit it to the processing module; The processing module at least includes: a key input module, an MCU and a display screen; The key input module is used to output a detection light control signal to the circuit control board; The MCU is used to process the first interrupt signal, the second interrupt signal and the color judgment signal to obtain a test result; The display screen is used to display the test result; The test method comprises the following steps: S1: testing in the test system respectively the first delay time of four detection lights, RGB three-color lights and white light lights, from being emitted by the output unit to being received by the collection unit, and saving the first delay time; S2: Apply the test system to the in-vehicle streaming media to be tested, and test the second delay time of the four colors of light, RGB three-color light and white light, from being emitted by the output unit to being received by the collection unit; S3: subtracting the second delay time from the first delay time of the four color lights to obtain a first test value, and calculating an average value of the first test value as a test result; The S1 specifically includes: S11: the processing module controls the output unit to turn on the RGB three-color lamp and the white light lamp to emit detection light, and starts timing; S12: the acquisition unit converts the detection light emitted by the RGB three-color lamp into a first interrupt signal and a first color judgment signal, and converts the detection light emitted by the white light lamp into a second interrupt signal; S13: the processing module receives the first interrupt signal, the second interrupt signal and the first color determination signal, and calculates first delay times of four types of detection light respectively; The S2 specifically includes: S21: applying the test system to the vehicle-mounted streaming media to be tested, the processing module controlling the output unit to turn on the RGB three-color lamp and the white light lamp as detection light of the vehicle-mounted streaming media camera, and starting timing, the detection light is transmitted to the vehicle-mounted streaming media display screen end through the vehicle-mounted streaming media camera; S22: the collection unit collects the detection light of the RGB three-color lamp, and processes it into a third interrupt signal and a second color judgment signal and transmits them to the processing module; The collecting unit collects the detection light of the white light lamp, processes it into a fourth interrupt signal and transmits it to the processing module; S23: The processing module receives the third interrupt signal, the fourth interrupt signal and the second color determination signal, and calculates the second delay time of the four detection lights respectively.
2. The vehicle-mounted streaming media delay test method according to claim 1 is characterized in that: The test system at least comprises: an output unit responsive to the processing module and generating a detection light; A collection unit that collects the detection light from the on-board streaming media display screen and converts it into an electrical signal; A processing module for delay detection of in-vehicle streaming media.
3. The vehicle-mounted streaming media delay test method according to claim 2 is characterized in that: The S3 specifically includes: S31: respectively subtracting the first delay time from the second delay time of the four color lights to obtain first test values of the four detection lights; S32: Calculate the average value of the first test value to obtain a test result and display it on the processing module.
4. A storage medium, located in any processing system, characterized in that: The storage medium includes a computer program executable by a processor, and the computer program is used to execute a vehicle-mounted streaming media delay testing method as described in any one of claims 1-3.
Citation Information
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