Vehicle lamp evaluation system

Abstract

The utility model discloses a vehicle lamp evaluation system, and relates to the technical field of vehicle headlamps. The system comprises a first positioning module, a data processing module, a display module, a first data transmission module, a second positioning module, a light sensing module and a second data transmission module, the first positioning module, the data processing module, the display module and the first data transmission module are arranged on a tested vehicle, and the second positioning module, the light sensing module and the second data transmission module are arranged on a target vehicle. The second data transmission module is further in communication connection with the first data transmission module, and the data processing module is connected with the first positioning module, the display module and the first data transmission module. Thus, the vehicle lamp evaluation system is used for carrying out ADB real vehicle testing, the dazzling condition in the ADB real vehicle testing process can be fed back in real time, observation and evaluation are facilitated, and the timeliness, accuracy and safety of testing are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle headlights, in particular to a vehicle headlight evaluation system. Background Art

[0002] ADB (Adaptive Driving Beam) is an intelligent high beam control system that can automatically change the high beam light type according to road conditions. ADB headlights have multiple independently controlled LEDs that can realize opening and closing and brightness control of specific areas. When detecting oncoming vehicles or following a target vehicle, the ADB headlights turn off the corresponding LED light source in the target area to avoid dazzling other drivers. From functional prototypes to mass production, automotive product development requires a series of test verifications to ensure, to a certain extent, stable performance of functions under different working conditions and environments. Among them, actual vehicle testing is an indispensable part of the ADB headlight development process.

[0003] At present, the actual vehicle test of ADB usually involves engineers on the tested vehicle using walkie-talkies to communicate whether the feedback function is working. However, this method has obvious deficiencies in real-time and accuracy, and also affects normal driving. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems in the related art to a certain extent. To this end, the purpose of the utility model is to propose a headlight evaluation system, which can realize real-time feedback of the glare situation during the ADB headlight real-vehicle test by setting a first positioning module, a data processing module, a display module and a first data transmission module on the tested vehicle, and setting a second positioning module, a photosensitive module and a second data transmission module on the target vehicle, so as to facilitate observation and evaluation and improve the timeliness, accuracy and safety of the test.

[0005] To achieve the above-mentioned purpose, the first aspect of the utility model proposes a vehicle light evaluation system, which includes: a first positioning module, a data processing module, a display module and a first data transmission module arranged on the tested vehicle, and a second positioning module, a photosensitive module and a second data transmission module arranged on the target vehicle, wherein the second data transmission module is respectively connected to the second positioning module and the photosensitive module, the second data transmission module is also communicatively connected to the first data transmission module, and the data processing module is respectively connected to the first positioning module, the display module and the first data transmission module.

[0006] According to the vehicle light evaluation system of the present invention, the data processing module provides real-time feedback on the glare situation of the ADB headlights of the vehicle under test during the actual vehicle test based on the position information of the target vehicle, the position information of the vehicle under test and the brightness value, and displays the test results through the display module, thereby achieving real-time feedback on the glare situation of the ADB headlights during the actual vehicle test, facilitating observation and evaluation, and improving the timeliness, accuracy and safety of the test.

[0007] Specifically, the photosensitive module includes at least one photosensitive sensor, which is arranged at at least one of a windshield, a rearview mirror and a rear of the target vehicle, and is used to obtain a brightness value.

[0008] Specifically, the first positioning module and the second positioning module both include a positioning antenna, and the positioning antenna is used to receive position information of the measured vehicle and the target vehicle.

[0009] Specifically, the first positioning module and the second positioning module both further include: a positioning unit, which is used to correct the position information of the detected vehicle and the target vehicle.

[0010] Specifically, the first data transmission module and the second data transmission module communicate via wireless transmission, and the second data transmission module is used to send the location information and at least one brightness value of the target vehicle to the first data transmission module.

[0011] Specifically, the first data transmission module includes a first wireless data transmission radio station, and the second data transmission module includes a second wireless data transmission radio station.

[0012] Specifically, the first wireless data transmission station and the second wireless data transmission station perform wireless communication via an RS232 / RS485 interface.

[0013] Specifically, the first wireless data transmission radio station and the second wireless data transmission radio station are used in pair.

[0014] Specifically, the data processing module determines the relative position of the target vehicle and the detected vehicle according to the position information of the target vehicle and the position information of the detected vehicle, and determines the dazzling state of the target vehicle according to the relative position and at least one brightness value.

[0015] Specifically, the display module includes: a first display unit for displaying the system's operating options; a second display unit for displaying the status information of the vehicle under test; a third display unit for displaying the status information of the target vehicle; and a fourth display unit for displaying the position of the target vehicle, the status of the headlights of the vehicle under test, and the illumination area. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of a vehicle lamp evaluation system according to some embodiments of the utility model;

[0017] Figure 2 Schematic diagram of the structure of a display module according to some embodiments of the present invention. DETAILED DESCRIPTION

[0018] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0019] The vehicle lamp evaluation system according to an embodiment of the utility model is described in detail below with reference to the accompanying drawings.

[0020] Figure 1 It is a schematic diagram of the structure of a vehicle light evaluation system according to some embodiments of the utility model.

[0021] Reference Figure 1 The vehicle light evaluation system of the present application may include: a first positioning module 11, a data processing module 12, a display module 13 and a first data transmission module 14 arranged on the tested vehicle 1, and a second positioning module 21, a photosensitive module 22 and a second data transmission module 23 arranged on the target vehicle 2, wherein the second data transmission module 23 is respectively connected to the second positioning module 21 and the photosensitive module 22, and the second data transmission module 23 is also communicatively connected to the first data transmission module 14, and the data processing module 12 is respectively connected to the first positioning module 11, the display module 13 and the first data transmission module 14.

[0022] Specifically, the ADB is provided on the tested vehicle 1. During the ADB actual vehicle test, two test scenarios are included, namely, the opposite test scenario and the following test scenario. In the opposite test scenario, the tested vehicle 1 and the target vehicle 2 are traveling in opposite directions. In the following test scenario, the tested vehicle 1 and the target vehicle 2 are traveling in the same direction (the target vehicle 2 is in front of the tested vehicle 1). When the tested vehicle 1 and the target vehicle 2 are traveling in opposite directions (the opposite test scenario), the lights of the tested vehicle 1 will dazzle the driver and passengers of the target vehicle 2 through the front windshield of the target vehicle 2. When the tested vehicle 1 and the target vehicle 2 are traveling in the same direction (the following test scenario), the lights of the tested vehicle 1 will dazzle the driver and passengers of the target vehicle 2 through the rearview mirror of the target vehicle 2. Therefore, according to the test scenario, a photosensitive module 22 is set on the target vehicle 2 to obtain the brightness value, and transmitted to the first data transmission module 14 of the tested vehicle 1 through the second data transmission module 23, and then transmitted to the data processing module 12 by the first data transmission module 14. The data processing module 12 provides real-time feedback on the glare situation of the ADB headlights of the tested vehicle 1 during the actual vehicle test based on the position information of the target vehicle 2, the position information of the tested vehicle 1 and the brightness value, and displays the test results through the display module 13.

[0023] Reference Figure 1 , the target vehicle 2 is provided with a photosensitive module 22 and a second data transmission module 23, and the photosensitive module 22 is connected to the second data transmission module 23. Among them, the photosensitive module 22 is used to obtain the brightness value in real time, and transmit the brightness value to the vehicle under test 1 through the second data transmission module 23. The setting position of the photosensitive module 22 is selected to be forward-mounted or backward-mounted according to the test scene. The forward-mounted photosensitive module 22 is used to detect the brightness value of the opposite test scene, and the backward-mounted photosensitive module 22 is used to detect the brightness value of the following test scene. The target vehicle 2 is also provided with a second positioning module 21, and the second positioning module 21 is connected to the second data transmission module 23, which is used to obtain the position information of the target vehicle 2 in real time, and transmit the position information of the target vehicle 2 to the vehicle under test 1 through the second data transmission module 23.

[0024] Continue to refer to Figure 1 , the tested vehicle 1 is provided with a first positioning module 11, a first data transmission module 14 and a data processing module 12, and the data processing module 12 is connected to the first positioning module 11 and the first data transmission module 14 respectively. Among them, the first positioning module 11 is used to obtain the position information of the tested vehicle 1 in real time, and transmit the position information of the tested vehicle 1 to the data processing module 12. The first data transmission module 14 is connected to the second data transmission module 23 in communication, such as wireless communication, and the second data transmission module 23 is used to transmit the position information and brightness value of the target vehicle 2 to the first data transmission module 14, and the first data transmission module 14 is used to transmit the position information and brightness value of the target vehicle 2 to the data processing module 12. The data processing module 12 is used to obtain the relative position of the target vehicle 2 and the tested vehicle 1 according to the position information of the target vehicle 2 and the position information of the tested vehicle 1, and determine the dazzling situation during the actual vehicle test in combination with the brightness value. The tested vehicle 1 is also provided with a display module 13, and the display module 13 is connected to the data processing module 12, and is used to display the dazzling situation of the ADB headlight actual vehicle test of the tested vehicle 1 determined by the data processing module 12.

[0025] In this way, the data processing module provides real-time feedback on the glare situation of the ADB headlights of the tested vehicle during the actual vehicle test based on the position information of the target vehicle, the position information and brightness value of the tested vehicle, and displays the test results through the display module, thereby achieving real-time feedback on the glare situation of the ADB headlights during the actual vehicle test, facilitating observation and evaluation, and improving the timeliness, accuracy and safety of the test.

[0026] In some embodiments, the photosensitive module includes at least one photosensitive sensor, which is disposed at at least one of a windshield, a rearview mirror, and a rear of the target vehicle to obtain a brightness value.

[0027] Specifically, the photosensitive module includes at least one photosensitive sensor, which is installed on the target vehicle and can detect the change of light at the installation position in real time and output a specific brightness value. The installation position of the photosensitive sensor is selected to be forward-mounted or backward-mounted according to the test scene. The forward-mounted photosensitive module is used to detect the brightness value of the opposite test scene, and the backward-mounted photosensitive module is used to detect the brightness value of the following test scene.

[0028] For example, in the opposite test scenario, the light of the vehicle under test will dazzle the target vehicle's occupants through the target vehicle's front windshield, so the photosensitive sensor needs to be installed forward (without affecting the driver's field of view), for example, installed on the target vehicle's front windshield (specifically the left side of the front windshield), the target vehicle's left and right rearview mirrors, or the front windshield and the target vehicle's left and right rearview mirrors. In the following test scenario, the light of the vehicle under test will dazzle the target vehicle's occupants through the target vehicle's rearview mirrors, so the photosensitive sensor needs to be installed backward, for example, installed on the target vehicle's rear windshield (specifically the middle of the rear windshield), the two sides of the rear of the target vehicle, or the target vehicle's rear windshield and the two sides of the rear of the target vehicle.

[0029] In some embodiments, the first positioning module and the second positioning module may each include a positioning antenna, and the positioning antenna is used to receive position information of the detected vehicle and the target vehicle.

[0030] Specifically, the first positioning module and the second positioning module both include a positioning antenna, which can receive the position information of the vehicle via a satellite and obtain the positioning error from the reference station. Exemplarily, the positioning antenna of the first positioning module receives the position information of the measured vehicle via a satellite, and the positioning antenna of the second positioning module receives the position information of the target vehicle via a satellite.

[0031] In some embodiments, the first positioning module and the second positioning module also include: a positioning unit for correcting the position information of the detected vehicle and the target vehicle.

[0032] Specifically, the first positioning module and the second positioning module also include a positioning unit, and the positioning unit can correct the vehicle position information based on the vehicle position information and the positioning error to obtain the precise position information of the vehicle. Exemplarily, the positioning unit of the first positioning module corrects the position information of the measured vehicle based on the position information and the positioning error of the measured vehicle to obtain the precise position information of the measured vehicle. The positioning unit of the second positioning module corrects the position information of the target vehicle based on the position information and the positioning error of the target vehicle to obtain the precise position information of the target vehicle.

[0033] In some embodiments, the first data transmission module and the second data transmission module communicate via wireless transmission, and the second data transmission module is used to send the location information and at least one brightness value of the target vehicle to the first data transmission module.

[0034] Specifically, during the ADB actual vehicle test, the distance requirement between the target vehicle and the vehicle under test is relatively large. Therefore, a second data transmission module is set on the target vehicle, and a first data transmission module is set on the vehicle under test. The second positioning module transmits the position information of the target vehicle to the second data transmission module, and the photosensitive module inputs the brightness value to the second data transmission module. The second data transmission module transmits the target vehicle position information and at least one brightness value to the first data transmission module. The first data transmission module and the second data transmission module communicate via wireless transmission to meet the distance requirement between the target vehicle and the vehicle under test.

[0035] In some embodiments, the first data transmission module may include a first wireless data transmission radio station, and the second data transmission module may include a second wireless data transmission radio station.

[0036] In some embodiments, the first wireless data transmission station and the second wireless data transmission station perform wireless communication via a RS232 / RS485 interface.

[0037] In some embodiments, the first wireless data transmission radio station and the second wireless data transmission radio station are used in pairs.

[0038] Specifically, the wireless data transmission radio is a device that transmits and receives data using the RS232 / RS485 interface signal through radio technology. The first data transmission module includes the first wireless data transmission radio, and the second data transmission module includes the second wireless data transmission radio. The first wireless data transmission radio and the second wireless data transmission radio are used in pairs, which can avoid interference from other test vehicles to a certain extent. Wireless communication through the RS232 / RS485 interface can directly replace RS232 / RS485 wired wiring. The effective transmission distance is about 1km, and the maximum transmission distance can reach 5km, which meets the distance requirements between the target vehicle and the vehicle under test during the ADB headlight actual vehicle test.

[0039] In some embodiments, the data processing module determines the relative position of the target vehicle and the detected vehicle based on the position information of the target vehicle and the position information of the detected vehicle, and determines the dazzling state of the target vehicle based on the relative position and at least one brightness value.

[0040] Specifically, the second positioning module transmits the position information of the target vehicle to the second data transmission module, the photosensitive module inputs the brightness value to the second data transmission module, the second data transmission module transmits the target vehicle position information and at least one brightness value to the first data transmission module, the first data transmission module transmits the target vehicle position information and at least one brightness value to the data processing module, the first positioning module also transmits the position information of the measured vehicle to the data processing module, the data processing module determines the relative position of the target vehicle and the measured vehicle according to the position information of the target vehicle, the position information of the measured vehicle and the heading information, and determines the dazzling state of the target vehicle according to the relative position and at least one brightness value.

[0041] It should be noted that the standard for whether it is dazzling needs to be calibrated in advance. The brightness threshold for feeling dazzling should be determined based on different relative positions, different distances, and different headlight powers, combined with the brightness measurement value of the illuminance meter and the subjective feelings of the driver and passengers.

[0042] For example, assuming that the headlight power is 30W, and the target vehicle and the vehicle under test are traveling in opposite directions in adjacent lanes, then the brightness threshold y lux for feeling dazzled is set when the distance between the target vehicle and the vehicle under test is xm. If the brightness value detected by the target vehicle exceeds the brightness threshold y lux when the distance between the target vehicle and the vehicle under test is xm, it is determined that the headlights of the test vehicle dazzle the driver of the target vehicle. Otherwise, it is determined that the headlights of the test vehicle do not dazzle the driver of the target vehicle.

[0043] In some embodiments, reference Figure 2 The display module 13 includes: a first display unit 131, used to display the operation options of the system; a second display unit 132, used to display the status information of the vehicle under test 1; a third display unit 133, used to display the status information of the target vehicle 2; a fourth display unit 134, used to display the position of the target vehicle 2, the headlight status and illumination area of ​​the vehicle under test 1.

[0044] Specifically, the display module 13 includes a first display unit 131, a second display unit 132, a third display unit 133 and a fourth display unit 134, which can display in real time the relative position of the target vehicle 2 and the vehicle under test 1, the brightness value of the photosensitive sensor, the glare of the target vehicle and the motion status information of the vehicle under test 1.

[0045] For example, refer to Figure 2, the first display unit 131 is used to display the operation options of the system, such as the start measurement button 1311, the end measurement button 1312, the save data button 1313, the open data button 1314, the playback data button 1315 and the exit button 1316. The second display unit 132 is used to display the status information of the tested vehicle 1, such as the power status, the light switch status, the vehicle speed, the turning angle, the yaw angular velocity and other information of the tested vehicle 1. The third display unit 133 is used to display the status information of the target vehicle 2. After the data processing module determines the glare situation during the ADB headlight actual vehicle test of the tested vehicle 1, the test result is transmitted to the third display unit 133 of the display module 13 for display, such as the brightness value and glare situation of the photosensitive sensor 22 on the target vehicle 2. Among them, the glare situation can be displayed by changing the color of the schematic diagram of the photosensitive sensor 22 on the third display unit 133. For example, if the color of the schematic diagram of the photosensitive sensor 22 is gray, it is not glare, and if the color of the schematic diagram of the photosensitive sensor 22 is red, it is glare. The fourth display unit 134 is used to display the position of the target vehicle 2, the headlight status and the irradiation area of ​​the vehicle under test 1, wherein the headlight status of the vehicle under test 1 includes the on / off status of each LED of the left and right ADB headlights. In addition, the display module 13 also includes a video display unit 135, which is used to display the video stream of the external forward camera on the vehicle under test, monitor the test process in real time, and facilitate observation and data playback analysis.

[0046] To summarize, according to the vehicle light evaluation system of the embodiment of the utility model, by setting a first positioning module, a data processing module, a display module and a first data transmission module on the vehicle under test, and setting a second positioning module, a photosensitive module and a second data transmission module on the target vehicle, the relative position of the target vehicle and the vehicle under test, the brightness value of the photosensitive sensor, the on and off status of each ADB LED of the target vehicle, the glare situation of the target vehicle and the motion status information of the vehicle under test are displayed in real time, and the test process is monitored and played back in real time, which is convenient for observing and evaluating the glare situation during the actual vehicle test of ADB headlights, and improves the timeliness, accuracy and safety of the test.

[0047] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0048] 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 at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0049] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0050] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A vehicle lamp evaluation system, characterized in that: The system comprises: a first positioning module, a data processing module, a display module and a first data transmission module arranged on the tested vehicle, and a second positioning module, a photosensitive module and a second data transmission module arranged on the target vehicle, wherein: The second data transmission module is respectively connected to the second positioning module and the photosensitive module, the second data transmission module is also communicatively connected to the first data transmission module, and the data processing module is respectively connected to the first positioning module, the display module and the first data transmission module.

2. The vehicle lamp evaluation system according to claim 1, characterized in that: The photosensitive module includes at least one photosensitive sensor, which is arranged at least one of a windshield, a rearview mirror and a rear of the target vehicle to obtain a brightness value.

3. The vehicle lamp evaluation system according to claim 2, characterized in that: The first positioning module and the second positioning module both include a positioning antenna, and the positioning antenna is used to receive the position information of the detected vehicle and the target vehicle.

4. The vehicle lamp evaluation system according to claim 3, characterized in that: The first positioning module and the second positioning module both further include: a positioning unit, which is used to correct the position information of the detected vehicle and the target vehicle.

5. The vehicle lamp evaluation system according to claim 3, characterized in that: The first data transmission module and the second data transmission module communicate via wireless transmission, and the second data transmission module is used to send the location information of the target vehicle and at least one brightness value to the first data transmission module.

6. The vehicle lamp evaluation system according to claim 5, characterized in that: The first data transmission module includes a first wireless data transmission radio station, and the second data transmission module includes a second wireless data transmission radio station.

7. The vehicle lamp evaluation system according to claim 6, characterized in that: The first wireless data transmission radio station and the second wireless data transmission radio station perform wireless communication via an RS232 / RS485 interface.

8. The vehicle lamp evaluation system according to claim 6, characterized in that: The first wireless data transmission radio station and the second wireless data transmission radio station are used in pairs.

9. The vehicle lamp evaluation system according to claim 5, characterized in that: The data processing module determines the relative position of the target vehicle and the detected vehicle according to the position information of the target vehicle and the position information of the detected vehicle, and determines the dazzling state of the target vehicle according to the relative position and at least one of the brightness values.

10. The vehicle light evaluation system according to any one of claims 1 to 9, characterized in that: The display module comprises: A first display unit, used to display operation options of the system; A second display unit, used to display the status information of the tested vehicle; A third display unit, used to display the status information of the target vehicle; The fourth display unit is used to display the position of the target vehicle, the status of the headlights of the detected vehicle and the illuminated area.

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