CN114441139A - Automobile headlamp testing method and device - Google Patents
Automobile headlamp testing method and device Download PDFInfo
- Publication number
- CN114441139A CN114441139A CN202011216649.9A CN202011216649A CN114441139A CN 114441139 A CN114441139 A CN 114441139A CN 202011216649 A CN202011216649 A CN 202011216649A CN 114441139 A CN114441139 A CN 114441139A
- Authority
- CN
- China
- Prior art keywords
- measurement
- vehicle
- information
- headlamp
- test
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M11/00—Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
- G01M11/02—Testing optical properties
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M11/00—Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
- G01M11/02—Testing optical properties
- G01M11/06—Testing the alignment of vehicle headlight devices
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/40—Engine management systems
Landscapes
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Lighting Device Outwards From Vehicle And Optical Signal (AREA)
Abstract
The invention provides a method and a device for testing an automobile headlamp, and relates to the field of automobile headlamp detection. The method comprises the following steps: acquiring first measurement information of a measured vehicle in a test scene, wherein the first measurement information comprises a plurality of measurement parameter values of the measured vehicle, and a measurement position and a measurement time corresponding to each measurement parameter value, and the measurement parameter values are parameter values related to a headlamp of the measured vehicle; acquiring running information of the tested vehicle in the test scene at different measurement moments; and determining the headlamp performance parameters of the tested vehicle according to the first measurement information and the running information. The headlamp performance parameters determined by the embodiment of the invention have a plurality of parameter values, measurement positions and measurement moments related to the tested vehicle headlamp, so that the problem of single lamplight test index in the prior art is solved; the invention can also test the light performance index parameters in different scenes and also solves the problem of single test scene.
Description
Technical Field
The invention relates to the field of automobile headlamp detection, in particular to an automobile headlamp testing method and device.
Background
The existing automobile lamps are various in types, such as halogen lamps, xenon lamps and laser lamps, and the brightness, the irradiation distance and the like of the automobile lamps manufactured by various automobile manufacturers are different, so that the safety risk of the automobile driving at night is high. No matter the automobile manufacturer or the automobile testing and detecting mechanism, the light brightness performance of a single lamp is mostly detected, the detecting method is single, and the testing index is single.
There have been bottlenecks in testing automotive headlamps, such as the following: first, vehicle lamp attenuation is not well tested. And secondly, the color temperature of the vehicle lamp is not tested, the eyes of a person are in a tense state in the driving process, and the eyes of the person have the weakest ability of identifying the color and the shape in dawn and dusk, so that the fatigue of the eyes and the body is easily caused. Thirdly, the irradiation width and the irradiation distance are insufficient, the irradiation width and the distance of a plurality of headlights are insufficient, and a driver can hardly see the obstacle accurately and has more time to react to the obstacle.
Disclosure of Invention
The embodiment of the invention provides a method and a device for testing an automobile headlamp, which aim to solve the problem of single lamplight test index in the prior art.
In order to solve the technical problems, the invention adopts the following technical scheme:
the embodiment of the invention provides a method for testing an automobile headlamp, which comprises the following steps:
acquiring first measurement information of a measured vehicle in a test scene, wherein the first measurement information comprises a plurality of measurement parameter values of the measured vehicle, and a measurement position and a measurement time corresponding to each measurement parameter value, and the measurement parameter values are parameter values related to a headlight of the measured vehicle;
acquiring running information of the tested vehicle in the test scene at different measuring moments;
and determining the headlamp performance parameters of the tested vehicle according to the first measurement information and the running information.
Optionally, the measurement position includes a first measurement distance along the first direction, a second measurement distance along the second direction, and a third measurement distance along the third direction.
Optionally, after obtaining the first measurement information of the vehicle under test in the test scenario, the method further includes:
generating a plurality of measurement vectors according to the first measurement information, wherein each measurement vector comprises a measurement position, a measurement time and the measurement parameter value, and the measurement times in different measurement vectors are different;
and obtaining a first matrix according to the plurality of measurement vectors.
Optionally, determining a headlamp performance parameter of the vehicle to be measured according to the first measurement information and the driving information, including:
generating a second matrix according to the driving information;
according to the measuring time, the first matrix and the second matrix are combined, and a headlamp performance parameter matrix is determined;
the headlamp performance parameter matrix is used for representing the corresponding relation among the driving information, the measurement parameter value, the measurement position and the measurement time.
Optionally, the method further includes:
and when a running vehicle is behind the detected vehicle, controlling the detected vehicle to keep a preset safe vehicle distance with the running vehicle behind.
Optionally, the method further includes:
acquiring second measurement information of the tested vehicle after the tested vehicle works for a first preset time in the test scene, wherein the second measurement information comprises a plurality of measurement parameter values of the tested vehicle and a measurement position and a measurement time corresponding to each measurement parameter value;
and comparing the first measurement information with the second measurement information to determine the light attenuation information of the headlight of the vehicle to be measured.
Optionally, the measurement parameter value includes at least one of an illumination intensity value, a junction temperature value, and a color temperature value.
Optionally, the driving information includes: the light mode of the detected vehicle, the speed of the detected vehicle and the position information of the detected vehicle.
The embodiment of the invention further provides a device for testing the automobile headlamp, which comprises:
the device comprises a first acquisition module, a second acquisition module and a third acquisition module, wherein the first acquisition module is used for acquiring first measurement information of a tested vehicle in a test scene, the first measurement information comprises a plurality of measurement parameter values of the tested vehicle, and a measurement position and a measurement time corresponding to each measurement parameter value, and the measurement parameter values are parameter values related to a tested vehicle headlamp;
the second acquisition module is used for acquiring the running information of the tested vehicle in the test scene at different measurement moments;
and the determining module is used for determining the headlamp performance parameters of the measured vehicle according to the first measurement information and the driving information.
Optionally, the apparatus further comprises:
a generating module, configured to generate a plurality of measurement vectors according to the first measurement information, where each measurement vector includes a measurement location, a measurement time, and the measurement parameter value, and measurement times in different measurement vectors are different;
and the processing module is used for obtaining a first matrix according to the plurality of measurement vectors.
The invention has the beneficial effects that:
in the scheme, the method acquires the first measurement information and the running information in a test scene, and determines the headlamp performance parameters of the tested vehicle according to the first measurement information and the running information, wherein the headlamp performance parameters determined by the method have a plurality of parameter values, measurement positions and measurement moments related to the headlamp of the tested vehicle, so that the problem of single lamplight test index in the prior art is solved; the method provided by the invention can also obtain the lamplight performance index parameters of the tested vehicle in different scenes, and also solves the problem of single test scene.
Drawings
FIG. 1 is a schematic flow chart of a method for testing an automobile headlamp according to an embodiment of the present invention;
FIG. 2 shows one of the practical test charts provided by the embodiment of the present invention;
FIG. 3 shows a second practical test chart provided by the embodiment of the present invention;
FIG. 4 is a diagram illustrating the effect of the generated headlight illumination projection provided by the embodiment of the invention;
FIG. 5 is a schematic block diagram of an exemplary embodiment of an automotive headlamp testing apparatus;
fig. 6 is a schematic application diagram of the automotive headlamp testing apparatus according to the embodiment of the present invention.
Description of reference numerals: 001-light intensity and color temperature sensor; 002-sensor test column; 003-test field area; 004-the vehicle under test; 005-data service center; 006-cellular communication network; 007-client; 008-test report.
Detailed Description
In order to make the technical problems, technical solutions and advantages of the present invention more apparent, the following detailed description is given with reference to the accompanying drawings and specific embodiments. In the following description, specific details such as specific configurations and components are provided only to help the full understanding of the embodiments of the present invention. Thus, it will be apparent to those skilled in the art that various changes and modifications may be made to the embodiments described herein without departing from the scope and spirit of the invention. In addition, descriptions of well-known functions and constructions are omitted for clarity and conciseness.
It should be appreciated that reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure or characteristic described in connection with the embodiment is included in at least one embodiment of the present invention. Thus, the appearances of the phrases "in one embodiment" or "in an embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.
In various embodiments of the present invention, it should be understood that the sequence numbers of the following processes do not mean the execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present invention.
It should be noted that the existing car lamps are of many types, such as halogen lamp, xenon lamp, laser lamp, and the brightness, irradiation distance, etc. of the car lamp manufactured by each car manufacturer are different, which results in higher safety risk of the car driving at night.
According to incomplete statistics, 60% of traffic accidents occur in the evening, of which 22% are episodes in poor visibility. Many accidents occur because the width and the distance of the vehicle illumination are limited, the color of the illumination light is dark, and a driver cannot see obstacles in the road clearly during driving and cannot brake and avoid in time.
However, there are bottlenecks in the testing of the car headlights, such as the following: firstly, the attenuation of the car lamps is not well tested, the car lamps have light attenuation, the light attenuation means that the light intensity of the headlight is lower than the original light intensity after the headlight is lighted for a period of time, generally, the light attenuation of the halogen headlight is 70% within 10 months to one year, and the headlight is not used for night driving illumination after the light attenuation reaches 50%. The color temperature of the vehicle lamp is not tested, the eyes of a person are in a tense state for a long time in the driving process, and the eyes of the person have the weakest recognition capability on the color and the shape in dawn and dusk, so that the fatigue of the eyes is easily caused, and further the body fatigue is caused. Thirdly, the irradiation width and the irradiation distance are insufficient, the irradiation width and the distance of a plurality of headlights are insufficient, and a driver can hardly see the obstacle accurately and has more time to react to the obstacle.
Aiming at the defects of the prior art, the invention provides a method and a device for testing an automobile headlamp. The method mainly comprises the steps of controlling a vehicle to run on a road at a certain speed, controlling light mode switching according to road condition information, obtaining an illumination intensity value and a color temperature value of automobile light in a three-dimensional space at different distances from a measuring point, and evaluating the performance of the automobile light according to the illumination intensity value and the color temperature value.
Specifically, as shown in fig. 1, a method for testing an automobile headlamp according to an alternative embodiment of the present invention includes:
it should be noted that, in general, the manner of illuminating the front object by the car headlamp is to actively emit light by the car headlamp, and the light enters the eyes of the driver after being reflected by the target object, so as to make a corresponding judgment. The light of the automobile is actually the projection of a light beam on the bottom surface.
In this embodiment, a test device is arranged in advance on a test road, and a vehicle to be tested is controlled to travel to the test device at a preset speed in a relative manner, the test device obtains first measurement information of the vehicle to be tested in a test scene, the first measurement information includes a plurality of measurement parameter values of the vehicle to be tested, each measurement parameter value is a parameter value related to a headlight of the vehicle to be tested, and the measurement parameter values may be an illumination intensity value, a color temperature value, and the like; the first measurement information further comprises a measurement position and a measurement time corresponding to each measurement parameter value, namely the test device can obtain the measurement parameter values corresponding to the positions of the vehicle to be tested at different distances from the test device and at different times, and the problem that the vehicle lamp illuminates the three-dimensional space can be solved.
Here, the vehicle to be tested travels towards the testing device in a relative manner at a preset speed, preferably at a constant speed, so that the first measurement information of the vehicle to be tested in the testing scene can be better obtained, of course, the vehicle to be tested may also travel at a non-constant speed, and in the case of the non-constant speed, the testing device performs analysis processing, and the first measurement information can also be obtained accurately, where the preset speed is not limited.
Of course, the first measurement information of the vehicle under test in the test scene is obtained, where the test scene may be one or any combination of straight road scene information, quarter turn scene information, S-curve scene information, crosswalk scene information, and vehicle meeting scene information. The scenarios described herein are merely examples, and other application scenarios are certainly possible. The invention can arrange the same testing device for each scene, and arrange a plurality of testing devices at different positions to realize the acquisition of the first measurement information of the tested vehicle in the testing scene and the acquisition of the light performance index parameters of the tested vehicle in different scenes, thereby solving the problem of different illuminations in different scenes. The invention is not limited to the above method for arranging the test device, but the idea described above is also within the scope of the invention within reasonable scope.
As shown in fig. 2, the testing apparatus may include: the illumination intensity and color temperature sensors 001 with different heights are formed into a sensor testing column 002 which is arranged in a testing field area 003, the sensor testing column 002 carries a data transmission module of a high-precision time service Global Navigation Satellite System (GNSS), wherein, in order to reduce the reliability of time delay and data transmission, the data transmission module adopts a fifth generation cellular mobile communication technology (5G) network to be more excellent. Of course, the vehicle 004 to be tested has a data transmission module on which a high-precision time service Global Navigation Satellite System (GNSS) is mounted. The high-precision time service GNSS data transmission module is a wireless data transmission module carrying a high-precision time service function and a cm-level positioning function, and can store data locally or transmit the data to a data service center through a wireless communication technology.
200, acquiring running information of the tested vehicle in the test scene at different measurement moments;
in this embodiment, a high-precision time service GNSS data transmission module is installed in a vehicle to be tested, and the running information of the vehicle to be tested in the test scene at different measurement times is acquired, where the running information may include information such as GNSS position coordinates and vehicle speed of the vehicle to be tested at different times, a current lighting mode of the vehicle, a manufacturer and a model of the vehicle.
And 300, determining headlamp performance parameters of the tested vehicle according to the first measurement information and the running information.
In this embodiment, data association is performed according to the acquired first measurement information and the driving information to form a data set, so as to determine a headlamp performance parameter of the measured vehicle, where the headlamp performance parameter may be used to indicate performance of measurement parameter values of headlamps at different distances, at different heights, and in different bandwidths.
Furthermore, according to the headlamp performance parameters of the detected vehicle, an automobile headlamp irradiation projection effect graph can be drawn in various different modes such as a coordinate system and a drawing table, and the performance parameters of the automobile headlamp can be visually represented through the headlamp irradiation projection effect graph.
In the scheme, the method obtains the first measurement information and the running information in the test scene, and determines the headlamp performance parameters of the tested vehicle according to the first measurement information and the running information, wherein the headlamp performance parameters determined by the method have a plurality of parameter values, measurement positions and measurement moments related to the headlamps of the tested vehicle, so that the problem of single lamplight test index in the prior art is solved; the method provided by the invention can also obtain the lamplight performance index parameters of the tested vehicle in different scenes, and also solves the problem of single test scene.
In the above-described embodiments of the present invention, the measurement position includes a first measurement distance in the first direction, a second measurement distance in the second direction, and a third measurement distance in the third direction.
In this embodiment, the first direction may be a direction in which the vehicle to be tested travels toward the testing device, the second direction may be a direction perpendicular to a horizontal ground surface, and the third direction may be a direction perpendicular to the first direction and the second direction, respectively. For example: the first direction is the driving direction of the vehicle to be tested to the testing device, namely, the generated first measured distance is the distance between the vehicle to be tested and the testing device, the generated second measured distance in the second direction is the height of the testing device, and the generated third measured distance in the third direction is the width of the road to be tested. The invention solves the problem of single test light data by acquiring the position information of each measurement parameter value.
Specifically, the measurement parameter value includes at least one of a light intensity value, a junction temperature value, and a color temperature value.
Wherein the illumination intensity is: a physical technical term refers to the luminous flux of visible light received per unit area. Illuminance, abbreviated, in Lux or lx units; the color temperature is a unit of measure representing the color component contained in the light. Theoretically, the blackbody temperature refers to the color that an absolute blackbody would appear after warming from absolute zero (-273 ℃). After being heated, the black body gradually turns from black to red, turns yellow and becomes white, and finally emits blue light. When heated to a certain temperature, the light emitted by a black body contains spectral components, referred to as the color temperature at that temperature, measured in "K" (kelvin). The junction temperature value is used for judging a parameter value of light attenuation information of the automobile headlamp.
In the above embodiment of the present invention, after the step 100, the method further includes:
generating a plurality of measurement vectors according to the first measurement information, wherein each measurement vector comprises a measurement position, a measurement time and the measurement parameter value, and the measurement times in different measurement vectors are different;
and obtaining a first matrix according to the plurality of measurement vectors.
In this embodiment, a plurality of measurement vectors are generated according to the obtained first measurement information, the measurement may record information values corresponding to different measurement parameter values at different times and different positions, and a first matrix having the plurality of measurement vectors is generated according to the obtained information values, where the first matrix is a data matrix. For example: arranging a testing device at a certain height from the ground, and measuring by the testing device to obtain a current data matrix at the current moment, wherein the data matrix has different measurement parameter values, and GNSS positions corresponding to every measurement parameter value are recorded as L and current time T.
Specifically, as shown in fig. 3, the sensor test column 002 in the testing device is divided into a plurality of heights, i.e., H0, H1, H2 and H3 in fig. 3, and the measured parameter values of the vehicle 004 to be tested, which are acquired by the embodiment of the present invention, are preferably the illumination intensity E and the color temperature K. For example: when the first measurement distance (distance L between the vehicle under test and the test device) and the third measurement distance (road W under test) are not divided, a data matrix is generated
On the basis of this, if a plurality of test devices are provided for the road, it is of course also possible to generate a plurality of data matrices, i.e.
Wherein said
Comprises the following steps:
that is, the generated first matrix may be a plurality of matrices, which are the plurality of data matrices described above, according to the number of the test devices, but of course, the matrices may be generated by dividing the second measurement distance (height H between the test devices) by L or W without dividing the matrices, and specifically, may be generated according to the position of the vehicle under test, and the matrices are merely exemplary matrices.
In the above embodiment of the present invention, the steps 200 and 300 include:
generating a second matrix according to the driving information;
according to the measuring time, the first matrix and the second matrix are combined, and a headlamp performance parameter matrix is determined;
the headlamp performance parameter matrix is used for representing the corresponding relation among the driving information, the measurement parameter value, the measurement position and the measurement time.
Further, the travel information includes: the light mode of the detected vehicle, the speed of the detected vehicle and the position information of the detected vehicle.
In this embodiment, a second matrix is generated based on the travel information, where the travel information includes: the method comprises the steps that the light mode of a detected vehicle, the speed of the detected vehicle and the position information of the detected vehicle are obtained, wherein the position information is the GNSS position of the detected vehicle; according to the obtained relevant data of the running information, recording the relevant data of the detected vehicle, and generating a second matrix omega (T) by the GNSS position coordinates, the speed V of the detected vehicle and the current light mode M of the vehicle at different moments;
the second matrix ω (T) ═ M v L.
Further, the first matrix is
And the second matrix omega (T) combines the L in omega (T) with L in omega (T) by using the same data as the measurement time T
L in (3) is differenced and converted into a plane distance to obtain a vertical distance DnAnd level HnAnd synthesizing the data to form the headlamp performance parameter matrix gamma(n,T)。
The above-mentioned
The headlamp performance parameter matrix gamma(n,T)For representing the correspondence between the travel information, the measurement parameter value, the measurement position, and the measurement time.
Further according to said Γ(n，T)The data is plotted to obtain the projection effect of the headlight irradiation of the automobile, as shown in a in fig. 4. Then gamma is(n，T)The performance parameters of the automobile headlamp are characterized. In the same way, the steps are further repeated for different test scenes such as straight roads, quarter turns, S curves, crosswalks, oncoming vehicles and the like to obtain the automobile headlamp performance parameter matrixes in different scenes.
Further, the automobile headlamp testing method further comprises the following steps:
and when a running vehicle is behind the detected vehicle, controlling the detected vehicle to keep a preset safe vehicle distance with the running vehicle behind.
In the embodiment, in the practical application process, a situation that a running vehicle exists behind the detected vehicle inevitably occurs, and at the moment, the detected vehicle and the running vehicle behind the detected vehicle are controlled to keep a preset safe vehicle distance. The detected vehicle and the rear driving vehicle are controlled to keep a sufficient distance, preferably, when the speed per hour of the motor vehicle is 60 kilometers, the preset safe vehicle distance is more than 60 meters; when the speed per hour is 80 kilometers, the preset safe distance is more than 80 meters, and so on.
Further, the automobile headlamp testing method further comprises the following steps: when the vehicle under test is in a plurality of test scenes, the measurement information further includes: and the tested vehicle corresponds to the light mode under each test scene.
In this embodiment, different lighting modes of the vehicle to be controlled in different scenes are obtained, the lighting modes may include a low beam mode, a high beam mode, and a plurality of different modes such as an automatic light height adjustment mode, each application scene corresponds to one lighting mode, and the setting may be performed according to actual requirements, which is not limited by the present invention.
In another optional embodiment of the present invention, the method for testing an automobile headlamp further includes:
acquiring second measurement information of the tested vehicle after the tested vehicle works for a first preset time in the test scene, wherein the second measurement information comprises a plurality of measurement parameter values of the tested vehicle and a measurement position and a measurement time corresponding to each measurement parameter value;
and comparing the first measurement information with the second measurement information to determine the light attenuation information of the headlight of the vehicle to be measured.
The embodiment is different from the above embodiment in that second measurement information after the vehicle under test operates in the test scene for a first preset time is obtained, and measurement parameter values in the second measurement information include: illumination intensity value, junction temperature value and color temperature value. And comparing the color temperature values in the first measurement information and the second measurement information to determine the light attenuation information of the headlight of the vehicle to be measured. After the vehicle headlamp continuously works for a certain time, the test is carried out, and the light attenuation problem of the vehicle headlamp after being used for a period of time can be obtained by comparing the data before and after the vehicle headlamp is used.
In another embodiment of the present invention, as shown in fig. 6, further, the data processing and analyzing local client 007 is constructed, and the data of the testing device and the speed data of the driving position of the vehicle to be tested are associated with each other through high-precision time by capturing the testing data from the server, so as to form a data set.
Specifically, the high-precision time service GNSS data transmission module may transmit the acquired test information to the data processing center 005 through the cellular communication network 006, that is, the performance test report 008 of the vehicle light is given through the data integration processing system. And the test report is automatically generated according to the headlamp performance parameters of the tested vehicle.
By the scheme, the blank of the whole automobile test of the automobile headlamp in China is filled, the test report of the automobile headlamp can be efficiently given, and due to the fact that the system adopts a central data framework, various indexes can be flexibly adjusted to meet various test requirements of the automobile headlamp in the future.
In conclusion, the invention solves the problem of the whole vehicle light test by measuring the illumination intensity values and the color temperature values at different distances, and simultaneously the test contents cover the contents such as the illumination intensity values, the color temperature values and the like; furthermore, test positions are set in different broad bands in the road, so that the light intensity and the color temperature value of the vehicle lamp in different road widths can be obtained, and the problem of the lighting width of the vehicle lamp is solved; furthermore, sensors with different heights are arranged at the test position for measurement, so that the light intensity and the color temperature value of the light irradiated at different heights are obtained, and the problem of the lighting height of the car lamp is solved; furthermore, different test scenes such as a straight road, a quarter turn, an S curve and the like are set, light performance index parameters of the vehicle in different scenes are obtained through different pedestrian crossings, oncoming vehicles and the like, and the problem that the vehicle lamp system illuminates different scenes is solved.
As shown in fig. 5, an automotive headlamp testing apparatus according to an alternative embodiment of the present invention includes:
the system comprises a first acquisition module 10, a second acquisition module, a third acquisition module and a fourth acquisition module, wherein the first acquisition module is used for acquiring first measurement information of a tested vehicle in a test scene, the first measurement information comprises a plurality of measurement parameter values of the tested vehicle, and a measurement position and a measurement time corresponding to each measurement parameter value, and the measurement parameter values are parameter values related to a headlamp of the tested vehicle;
the second obtaining module 20 is configured to obtain driving information of the vehicle under test in the test scene at different measurement times;
and the determining module 30 is used for determining the headlamp performance parameters of the measured vehicle according to the first measurement information and the driving information.
It should be noted that the measurement positions include a first measurement distance along the first direction, a second measurement distance along the second direction, and a third measurement distance along the third direction.
Optionally, the apparatus further comprises:
a generating module, configured to generate a plurality of measurement vectors according to the first measurement information, where each measurement vector includes a measurement location, a measurement time, and the measurement parameter value, and measurement times in different measurement vectors are different;
and the processing module is used for obtaining a first matrix according to the plurality of measurement vectors.
Optionally, the apparatus further comprises:
a second generating module, configured to generate a plurality of measurement vectors according to the first measurement information, where each measurement vector includes a measurement location, a measurement time, and the measurement parameter value, and measurement times in different measurement vectors are different;
and the obtaining module is used for obtaining a first matrix according to the plurality of measurement vectors.
Optionally, the apparatus further comprises:
the third generation module is used for generating a second matrix according to the running information;
the second determining module is used for combining the first matrix and the second matrix according to the measuring time to determine a headlamp performance parameter matrix;
the headlamp performance parameter matrix is used for representing the corresponding relation among the driving information, the measurement parameter value, the measurement position and the measurement time.
Optionally, the apparatus further comprises:
and the control module is used for controlling the detected vehicle and the rear running vehicle to keep a preset safe vehicle distance when the running vehicle is arranged behind the detected vehicle.
Optionally, the apparatus further comprises:
a third obtaining module, configured to obtain second measurement information after the vehicle under test operates in the test scene for a first preset time, where the second measurement information includes a plurality of measurement parameter values of the vehicle under test, and a measurement position and a measurement time corresponding to each measurement parameter value;
and the third determining module is used for comparing the first measurement information with the second measurement information to determine the light attenuation information of the tested vehicle headlight.
It should be noted that the measurement parameter value includes at least one of an illumination intensity value, a junction temperature value, and a color temperature value.
The travel information includes: the light mode of the detected vehicle, the speed of the detected vehicle and the position information of the detected vehicle.
In the embodiment, a data processing and analyzing local client can be further built, test data are captured from the server, and data of the test device and data of the running position and speed of the tested vehicle are correlated through high-precision time to form a data set.
Specifically, as shown in fig. 6, the data processing and analyzing local client 007 is further configured to capture test data from the server, and correlate the data of the test device with the data of the driving position and speed of the vehicle to be tested through high-precision time to form a data set.
Specifically, the high-precision time service GNSS data transmission module may transmit the acquired test information to the data processing center 005 through the cellular communication network 006, that is, the performance test report 008 of the vehicle light is given through the data integration processing system. And the test report is automatically generated according to the headlamp performance parameters of the tested vehicle.
In summary, the headlamp performance parameters determined by the method and the device provided by the invention are that the illumination intensity value and the color temperature value of the automobile lamp light in the three-dimensional space at different distances from the measuring point are obtained, and the performance of the automobile lamp light is evaluated according to the illumination intensity value, the color temperature value and the light attenuation value, so that the problem of single lamp light test index in the prior art is solved; the method provided by the invention can also obtain the lamplight performance index parameters of the tested vehicle in different scenes, and also solves the problem of single test scene.
While the preferred embodiments of the present invention have been described, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the following claims.
Claims (10)
1. A method for testing an automobile headlamp is characterized by comprising the following steps:
acquiring first measurement information of a measured vehicle in a test scene, wherein the first measurement information comprises a plurality of measurement parameter values of the measured vehicle, and a measurement position and a measurement time corresponding to each measurement parameter value, and the measurement parameter values are parameter values related to a headlamp of the measured vehicle;
acquiring running information of the tested vehicle in the test scene at different measurement moments;
and determining the headlamp performance parameters of the tested vehicle according to the first measurement information and the running information.
2. The method for testing a vehicle headlight according to claim 1, characterized in that the measuring positions comprise a first measuring distance in a first direction, a second measuring distance in a second direction and a third measuring distance in a third direction.
3. The automobile headlamp test method according to claim 1, wherein after first measurement information of a vehicle under test in a test scene is obtained, the method further comprises:
generating a plurality of measurement vectors according to the first measurement information, wherein each measurement vector comprises a measurement position, a measurement time and the measurement parameter value, and the measurement times in different measurement vectors are different;
and obtaining a first matrix according to the plurality of measurement vectors.
4. The method for testing headlights of cars according to claim 3, wherein determining the headlight performance parameter of the vehicle under test based on the first measurement information and the driving information comprises:
generating a second matrix according to the driving information;
according to the measuring time, the first matrix and the second matrix are combined, and a headlamp performance parameter matrix is determined;
the headlamp performance parameter matrix is used for representing the corresponding relation among the driving information, the measurement parameter value, the measurement position and the measurement time.
5. The method for testing an automobile headlamp according to claim 1, wherein the method further comprises:
and when a running vehicle is behind the detected vehicle, controlling the detected vehicle to keep a preset safe vehicle distance with the running vehicle behind.
6. The method for testing an automobile headlamp according to claim 1, wherein the method further comprises:
acquiring second measurement information of the tested vehicle after the tested vehicle works for a first preset time in the test scene, wherein the second measurement information comprises a plurality of measurement parameter values of the tested vehicle and a measurement position and a measurement time corresponding to each measurement parameter value;
and comparing the first measurement information with the second measurement information to determine the light attenuation information of the headlight of the vehicle to be measured.
7. The method for testing headlights of cars of claim 6, wherein the measured parameter values include at least one of a light intensity value, a junction temperature value and a color temperature value.
8. The headlamp testing method of claim 1, wherein the driving information comprises: the light mode of the detected vehicle, the speed of the detected vehicle and the position information of the detected vehicle.
9. An automobile headlamp testing device is characterized by comprising:
the device comprises a first acquisition module, a second acquisition module and a third acquisition module, wherein the first acquisition module is used for acquiring first measurement information of a tested vehicle in a test scene, the first measurement information comprises a plurality of measurement parameter values of the tested vehicle, and a measurement position and a measurement time corresponding to each measurement parameter value, and the measurement parameter values are parameter values related to a tested vehicle headlamp;
the second acquisition module is used for acquiring the running information of the tested vehicle in the test scene at different measurement moments;
and the determining module is used for determining the headlamp performance parameters of the measured vehicle according to the first measurement information and the driving information.
10. The headlamp test device as claimed in claim 9, wherein the device further comprises:
a generating module, configured to generate a plurality of measurement vectors according to the first measurement information, where each measurement vector includes a measurement location, a measurement time, and the measurement parameter value, and measurement times in different measurement vectors are different;
and the processing module is used for obtaining a first matrix according to the plurality of measurement vectors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011216649.9A CN114441139B (en) | 2020-11-04 | 2020-11-04 | Automobile headlight testing method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011216649.9A CN114441139B (en) | 2020-11-04 | 2020-11-04 | Automobile headlight testing method and device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114441139A true CN114441139A (en) | 2022-05-06 |
| CN114441139B CN114441139B (en) | 2023-08-15 |
Family
ID=81361882
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011216649.9A Active CN114441139B (en) | 2020-11-04 | 2020-11-04 | Automobile headlight testing method and device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114441139B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117761570A (en) * | 2023-03-01 | 2024-03-26 | 创正电气股份有限公司 | Performance detection method and system for explosion-proof lamp |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2248650A1 (en) * | 1996-05-07 | 1997-11-13 | Recon/Optical, Inc. | Electro-optical imaging detector array with two axis image motion compensation |
| JPH1164165A (en) * | 1997-08-13 | 1999-03-05 | Banzai Kogyo Kk | Vehicle opposing device of headlight tester |
| JP2001013038A (en) * | 1999-06-29 | 2001-01-19 | Takimoto Keiki Seisakusho:Kk | Method for confrontation of vehicle and headlight tester used for the method |
| CN103954437A (en) * | 2012-06-20 | 2014-07-30 | 东软集团股份有限公司 | Vehicle headlamp irradiation angle detection method, device and system based on vertical face |
| WO2014206624A1 (en) * | 2013-06-24 | 2014-12-31 | Bayerische Motoren Werke Aktiengesellschaft | Method for checking the adjustment of a headlamp in a motor vehicle |
| DE102013011975A1 (en) * | 2013-07-12 | 2015-01-29 | Iav Gmbh Ingenieurgesellschaft Auto Und Verkehr | Method for evaluating headlamps |
| JP2016183917A (en) * | 2015-03-26 | 2016-10-20 | 富士重工業株式会社 | Vehicle headlight inspection apparatus |
| JP2017037025A (en) * | 2015-08-12 | 2017-02-16 | 株式会社小糸製作所 | Automatic inspection device for vehicle lamp |
| IT201600127830A1 (en) * | 2016-12-19 | 2018-06-19 | Magneti Marelli Spa | Verification procedure of the installation of a device mounted on a vehicle, and relative system. |
| CN109506902A (en) * | 2018-11-18 | 2019-03-22 | 中车长春轨道客车股份有限公司 | Train illuminator irradiating angle test device and its test method |
| CN111366912A (en) * | 2020-03-10 | 2020-07-03 | 上海西井信息科技有限公司 | Laser sensor and camera calibration method, system, device and storage medium |
-
2020
- 2020-11-04 CN CN202011216649.9A patent/CN114441139B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2248650A1 (en) * | 1996-05-07 | 1997-11-13 | Recon/Optical, Inc. | Electro-optical imaging detector array with two axis image motion compensation |
| JPH1164165A (en) * | 1997-08-13 | 1999-03-05 | Banzai Kogyo Kk | Vehicle opposing device of headlight tester |
| JP2001013038A (en) * | 1999-06-29 | 2001-01-19 | Takimoto Keiki Seisakusho:Kk | Method for confrontation of vehicle and headlight tester used for the method |
| CN103954437A (en) * | 2012-06-20 | 2014-07-30 | 东软集团股份有限公司 | Vehicle headlamp irradiation angle detection method, device and system based on vertical face |
| WO2014206624A1 (en) * | 2013-06-24 | 2014-12-31 | Bayerische Motoren Werke Aktiengesellschaft | Method for checking the adjustment of a headlamp in a motor vehicle |
| DE102013011975A1 (en) * | 2013-07-12 | 2015-01-29 | Iav Gmbh Ingenieurgesellschaft Auto Und Verkehr | Method for evaluating headlamps |
| JP2016183917A (en) * | 2015-03-26 | 2016-10-20 | 富士重工業株式会社 | Vehicle headlight inspection apparatus |
| JP2017037025A (en) * | 2015-08-12 | 2017-02-16 | 株式会社小糸製作所 | Automatic inspection device for vehicle lamp |
| IT201600127830A1 (en) * | 2016-12-19 | 2018-06-19 | Magneti Marelli Spa | Verification procedure of the installation of a device mounted on a vehicle, and relative system. |
| CN109506902A (en) * | 2018-11-18 | 2019-03-22 | 中车长春轨道客车股份有限公司 | Train illuminator irradiating angle test device and its test method |
| CN111366912A (en) * | 2020-03-10 | 2020-07-03 | 上海西井信息科技有限公司 | Laser sensor and camera calibration method, system, device and storage medium |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117761570A (en) * | 2023-03-01 | 2024-03-26 | 创正电气股份有限公司 | Performance detection method and system for explosion-proof lamp |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114441139B (en) | 2023-08-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7512252B2 (en) | Image processing system and vehicle control system | |
| US7839303B2 (en) | Vehicle detecting apparatus | |
| EP2537709B1 (en) | Image processing apparatus and light distribution control method | |
| CN103118900B (en) | Front lamp device and brightness control method thereof | |
| CN104210421B (en) | Surrounding decision maker | |
| Gallen et al. | Nighttime visibility analysis and estimation method in the presence of dense fog | |
| US7358496B2 (en) | Infrared night vision system, in colour | |
| CN105922928A (en) | Vehicle headlight control device | |
| CN108859933A (en) | Motor-vehicle bulb and vehicle | |
| US8605154B2 (en) | Vehicle headlight management | |
| US10872419B2 (en) | Method and apparatus for evaluating a vehicle travel surface | |
| US9616805B2 (en) | Method and device for controlling a headlamp of a vehicle | |
| EP2525302A1 (en) | Image processing system | |
| CN107199943B (en) | Intelligent lamp assembly and intelligent lighting system for motor vehicle | |
| CN104251442A (en) | Vehicle headlight | |
| JP5361901B2 (en) | Headlight control device | |
| CN114056225A (en) | Method for operating a high beam assistance system of a motor vehicle and motor vehicle | |
| CN110979157B (en) | Vehicle lighting control system and vehicle | |
| CN114441139B (en) | Automobile headlight testing method and device | |
| US20230278485A1 (en) | Method for operating an illuminating device, and motor vehicle | |
| JP4007578B2 (en) | Headlamp irradiation range control method and headlamp apparatus | |
| KR20170069551A (en) | System and method of detecting signal light | |
| KR20160091331A (en) | System and method for forming nighttime images for a motor vehicle | |
| JP7084223B2 (en) | Image processing equipment and vehicle lighting equipment | |
| CN109760582B (en) | Automatic control method for meeting anti-dazzling car lights based on internet of vehicles |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |