CN112903092A - Intelligent automobile headlamp light intensity detection method and system, upper computer and light detector - Google Patents
Intelligent automobile headlamp light intensity detection method and system, upper computer and light detector Download PDFInfo
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Abstract
The invention discloses an intelligent automobile headlamp light intensity detection method, which comprises the following steps: acquiring license plate information of a detected vehicle on a detection station; extracting vehicle information of the detected vehicle according to the license plate information; judging whether the detected vehicle has an intelligent headlamp automatic shielding function or not according to the vehicle information, carrying out intelligent headlamp light intensity detection on the detected vehicle according to a detection flow if the detected vehicle has the intelligent headlamp automatic shielding function, generating a function closing instruction if the detected vehicle has the intelligent headlamp automatic shielding function, sending the function closing instruction to an OBD (on-board diagnostics) module of the detected vehicle to close the intelligent headlamp automatic shielding function of the detected vehicle, and carrying out intelligent headlamp light intensity detection on the detected vehicle according to the detection flow. The invention also discloses an upper computer, a light detector and an intelligent automobile headlamp light intensity detection system. By adopting the method and the device, the automatic avoiding function of the light of the detected vehicle can be automatically turned off in the detection process, and the universality and the practicability of the existing intelligent automobile headlamp light intensity detection method are ensured.
Description
Technical Field
The invention relates to the technical field of motor vehicle annual audit detection, in particular to an intelligent automobile headlamp light intensity detection method, an upper computer, a light detector and an intelligent automobile headlamp light intensity detection system.
Background
Along with the development of the light source technology of the automobile headlamp, meanwhile, along with the application of the automatic shielding technology of the intelligent headlamp, light rays are emitted from the lens and projected to the front for illumination, and the direct high beam light rays in front can certainly influence the oncoming car and the equidirectional preceding car, so that if part of light rays can be extinguished or shielded at the position of the oncoming car in front, the high beam does not need to be turned off, the automatic light avoiding function of the intelligent headlamp is born, and therefore the technology is also applied to part of luxurious car types.
As shown in fig. 1, in the annual inspection of automobiles, the headlamp high beam luminous intensity inspection of automobiles is to detect the automobile lights by using a headlamp detector, when the automobile stops at a specified detection distance along a guide line, and simultaneously, the longitudinal axis of the automobile is ensured to be parallel to the guide line, and the headlamp detector automatically walks to a certain position in front of the automobile, the headlamp detector automatically searches the headlamp of the automobile to be detected, measures the high beam luminous intensity, and completes the detection of all the headlamps of the automobile according to the steps. However, in the luxury vehicle partially equipped with the automatic light evasion function of the intelligent headlamp, when the headlamp detector detects the vehicle headlamp, the automatic light evasion function of the intelligent headlamp is started, and part of the light is automatically extinguished or shielded, so that the detection of the high beam luminous intensity (cd) of the vehicle headlamp does not meet the limit value requirement on the high beam luminous intensity (cd) in the motor vehicle safety technology inspection project and method of GB38900-2020, and the measured value of the light of the vehicle cannot be truly reflected.
Therefore, the application of new technologies such as automotive electronics, LED headlights and laser headlights makes the original detection method and device unable to meet the detection requirements under the new technical conditions, and therefore the detection method and device also need to be improved in synchronization technology along with the development of automotive electronics technology.
Disclosure of Invention
The invention aims to solve the technical problem of providing an intelligent automobile headlamp light intensity detection method, a system, an upper computer and a light detector, which can automatically turn off the automatic avoiding function of the light of a detected automobile in the detection process.
In order to solve the technical problem, the invention provides an intelligent automobile headlamp light intensity detection method, which comprises the following steps: acquiring license plate information of a detected vehicle on a detection station; extracting vehicle information of the detected vehicle according to the license plate information; judging whether the detected vehicle has an intelligent headlamp automatic shielding function or not according to the vehicle information, carrying out intelligent automobile headlamp light intensity detection on the detected vehicle according to a detection flow if the detected vehicle has the intelligent headlamp automatic shielding function, generating a function closing instruction if the detected vehicle has the intelligent headlamp automatic shielding function, sending the function closing instruction to an OBD (on-board diagnostics) module of the detected vehicle to close the intelligent headlamp automatic shielding function of the detected vehicle, and carrying out intelligent automobile headlamp light intensity detection on the detected vehicle according to a detection flow.
As an improvement of the above scheme, the method for detecting the light intensity of the intelligent automobile headlamp further comprises the following steps: and after the light intensity detection of the intelligent automobile headlamp is completed, the connection with the OBD module of the detected automobile is disconnected so as to restart the automatic shielding function of the intelligent headlamp of the detected automobile.
As an improvement of the above scheme, the step of performing intelligent automobile headlight intensity detection on the detected vehicle according to the detection process includes: s1, starting the detected intelligent automobile headlamp, and closing other detected intelligent automobile headlamps; s2, moving the light detector to align the central line of the light beam transmitting surface of the detected intelligent automobile headlamp with the detection central line of the light detector; s3, detecting the light intensity of the detected intelligent automobile headlight through the light detector; and S4, repeating the steps S1-S3 until all intelligent automobile headlights are detected.
As an improvement of the above scheme, the step of moving the light detector to align the center line of the light beam transmitting surface of the detected intelligent automobile headlamp with the detection center line of the light detector includes: measuring the parking state of the detected vehicle, and generating movement information according to the parking state; driving the light detector to rotate according to the movement information so that the detection surface of the light detector is parallel to the light beam transmitting surface of the intelligent automobile headlamp to be detected; driving the lamplight detector to vertically move according to the movement information so that the center line of the detection surface and the center line of a light beam transmitting surface of the detected intelligent automobile headlamp are on the same horizontal plane; and driving the lamplight detector to move horizontally according to the movement information so that the center line of the detection surface and the center line of the light beam transmitting surface of the detected intelligent automobile headlamp are on the same vertical surface.
As an improvement of the above solution, the step of measuring a parking state of the subject vehicle and generating movement information according to the parking state includes: scanning a detected vehicle in a radar mode, and generating parking state data and vehicle head outline surface data for representing the state of the detected vehicle; calculating the detection position of the lamplight detector according to the parking state data and the vehicle head outline surface data; and calculating the movement information of the lamplight detector according to the detection position and the current position of the lamplight detector.
As an improvement of the above solution, after the step S3, the method further includes: adjusting the steering wheel angle of the motor vehicle with the AFS function so that the speed of the detected intelligent automobile headlamp is adaptively and dynamically adjusted along with the steering wheel angle; generating real-time adjustment information according to the steering wheel angle; driving the lamplight detector to rotate and horizontally move in real time according to the adjustment information so as to enable the lamplight detector and the detected intelligent automobile to move synchronously; and carrying out real-time light intensity detection on the detected intelligent automobile headlamp through the light detector.
Correspondingly, the invention also provides an upper computer, which comprises: the acquisition module is used for acquiring the license plate information of the detected vehicle on the detection station; the extraction module is used for extracting the vehicle information of the detected vehicle according to the license plate information; the judging module is used for judging whether the detected vehicle has an intelligent headlamp automatic shielding function or not according to the vehicle information; the command generation module is used for generating a function closing command when the judgment module judges that the detected vehicle has the intelligent headlamp automatic shielding function; the sending module is used for sending the function closing instruction to the OBD module of the detected vehicle so as to close the automatic shielding function of the intelligent headlamp of the detected vehicle; and the detection module is used for carrying out intelligent automobile headlamp light intensity detection on the detected vehicle according to the detection flow.
As an improvement of the above solution, the detection module includes: the vehicle control unit is used for driving the OBD module to start the detected intelligent automobile headlamp and turn off other detected intelligent automobile headlamps; and the detector control unit is used for driving the light detector so as to align the central line of the light beam transmitting surface of the detected intelligent automobile headlamp with the detection central line of the light detector, and is also used for driving the light detector so as to enable the light detector and the detected intelligent automobile to move synchronously.
Correspondingly, the invention also provides a lamplight detector, which comprises: the detection surface is used for carrying out intelligent automobile headlamp light intensity detection on the detected vehicle; the processing module is used for measuring the parking state of the detected vehicle, generating movement information according to the parking state and generating real-time adjustment information according to the angle of the steering wheel; the rotating module is used for driving the lamplight detector to rotate according to the movement information and the adjustment information; the vertical moving module is used for driving the lamplight detector to vertically move according to the movement information so that the central line of the detection surface and the central line of a light beam transmitting surface of the detected intelligent automobile headlamp are on the same horizontal plane; and the horizontal movement module is used for driving the light detector to move horizontally according to the movement information and the adjustment information.
Correspondingly, the invention also provides an intelligent automobile headlamp light intensity detection system which comprises the upper computer, a light detector and an OBD module, wherein the OBD module is used for responding to the instruction of the upper computer.
The implementation of the invention has the following beneficial effects:
the invention can automatically detect the vehicle information of the detected vehicle, and can control the automatic avoidance technology function to temporarily lose efficacy through the OBD module aiming at the vehicle with the intelligent headlamp automatic shielding function, and the automatic avoidance technology function is recovered to be normal after the detection is finished; and for the vehicle without the intelligent headlamp automatic shielding function, processing according to a normal detection flow. Therefore, the universality and the practicability of the intelligent automobile headlamp light intensity detection method are ensured on the basis of not changing the existing intelligent automobile headlamp light intensity detection method.
In addition, the light detector and the detected intelligent automobile headlamp are respectively aligned one by one in a mode of moving the light detector, so that the situation that the light of the automobile is not completely projected onto the light detector due to the fact that the automobile is not parked in a standard mode is avoided, and the light detector can effectively measure the light intensity of the intelligent automobile headlamp.
Further, aiming at the motor vehicle with the AFS function, the position of the light detector can be adjusted in real time according to the steering wheel angle of the motor vehicle, and the light intensity information in the deflection process of the intelligent automobile headlamp is measured in real time, so that whether the intelligent automobile headlamp generates light intensity change in the deflection process is determined, and the safety of the motor vehicle with the AFS function is ensured.
Drawings
FIG. 1 is a schematic view of a prior art automotive light detection system;
FIG. 2 is a flowchart of an embodiment of an intelligent method for detecting the light intensity of a headlamp of an automobile according to the present invention;
FIG. 3 is a flowchart illustrating an embodiment of detecting the light intensity of the headlight of the vehicle according to the detection process;
FIG. 4 is a flowchart of an embodiment of moving the light detector to align the center line of the light beam transmitting surface of the intelligent vehicle headlamp to be inspected with the center line of the light detector;
FIG. 5 is a schematic structural diagram of an intelligent automobile headlamp light intensity detection system according to the present invention;
FIG. 6 is a schematic structural diagram of a host computer according to the present invention;
fig. 7 is a schematic structural view of the light detector of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 2, fig. 2 shows a flowchart of an embodiment of the method for detecting the light intensity of the intelligent automobile headlamp of the present invention, which includes:
s101, license plate information of a detected vehicle on a detection station is obtained.
Specifically, the license plate information of the detected vehicle entering the detection station can be collected through the camera, and the license plate information is sent to the upper computer, so that the upper computer can timely acquire the license plate information of the detected vehicle on the detection station.
And S102, extracting the vehicle information of the detected vehicle according to the license plate information.
The vehicle information includes, but is not limited to, a vehicle model, and intelligent headlamp data (e.g., number of intelligent headlamps, size, whether an intelligent headlamp automatic shielding function is available, etc.).
S103, judging whether the detected vehicle has an intelligent headlamp automatic shielding function or not according to the vehicle information.
Before the detection is started, the connection between the upper computer and the OBD module of the detected vehicle can be established, so that the OBD module of the detected vehicle is electrified; at the moment, the upper computer can send an instruction to the OBD module of the detected vehicle to realize the control of the upper computer on the detected vehicle.
And S104, when the judgment result is no, carrying out intelligent automobile headlamp light intensity detection on the detected vehicle according to the detection process.
And when the detected vehicle is judged not to have the automatic shielding function of the intelligent headlamp, carrying out intelligent automobile headlamp light intensity detection on the detected vehicle according to the existing detection flow.
And S105, if the detected vehicle light intensity is judged to be yes, generating a function closing instruction, sending the function closing instruction to the OBD module of the detected vehicle to close the automatic shielding function of the intelligent headlamp of the detected vehicle, and then carrying out intelligent automobile headlamp light intensity detection on the detected vehicle according to a detection process.
In order to avoid automatic turning off or shielding of the intelligent headlamp in the detection process, when the detected vehicle is judged to have the automatic shielding function of the intelligent headlamp, the upper computer generates a function closing instruction and sends the function closing instruction to the OBD module of the detected vehicle so as to close the automatic shielding function of the intelligent headlamp of the detected vehicle. At the moment, even if the luxury vehicle with the automatic light avoiding function of the intelligent headlamp is equipped with the automatic light avoiding function of the intelligent headlamp, the light intensity of the intelligent headlamp can be detected according to the existing detection flow.
Further, after the light intensity detection of the intelligent automobile headlamp is completed, the automatic shielding function of the intelligent headlamp of the detected automobile can be restarted in a mode of disconnecting the upper computer from the OBD module of the detected automobile.
Therefore, the invention can realize that the function of the automatic avoidance technology is temporarily disabled by the OBD module after the automobile travels to the designated position, and the function is recovered to the normal target after the detection is finished; therefore, the universality and the practicability of the intelligent automobile headlamp light intensity detection method are ensured on the basis of not changing the existing intelligent automobile headlamp light intensity detection method.
Referring to fig. 3, fig. 3 is a flowchart illustrating an embodiment of detecting the light intensity of the intelligent car headlight of the detected car according to the detection process in the present invention, which includes:
s201, starting the detected intelligent automobile headlamp, and turning off other detected intelligent automobile headlamps.
In the detection process, the upper computer can send an instruction to an OBD module of the detected vehicle according to a preset automatic detection flow, and the light state is controlled through the OBD module (namely, the intelligent automobile headlamp is started/closed). Specifically, the control sequence of the lights in the automatic detection process for different types of vehicles is as follows:
(1) the two-lamp vehicle is detected in a left parking mode, namely, a left main lamp high beam, a left main lamp low beam, a passing lamp, a right main lamp high beam and a right main lamp low beam;
(2) the two-lamp vehicle is detected in a right parking mode, namely, a right main lamp high beam, a right main lamp low beam, a passing lamp, a left main lamp high beam and a left main lamp low beam;
(3) four lights system vehicle, adopt left side to berth the mode and detect: a left auxiliary lamp high beam, a left main lamp dipped beam, a passing lamp, a right auxiliary lamp high beam, a right main lamp high beam and a right main lamp dipped beam;
(4) four lights system vehicle, adopt the right side to berth the mode and detect: the main light comprises a right auxiliary light high beam, a right main light dipped beam, a passing light, a left auxiliary light high beam, a left main light high beam and a left main light dipped beam.
S202, moving the lamplight detector to align the central line of the light beam transmitting surface of the detected intelligent automobile headlamp with the detection central line of the lamplight detector.
The OBD module can be in interactive communication with the light detector and drives the light detector according to a light detection sequence;
in the detection process, different detected intelligent automobile headlights need to be detected respectively. Specifically, the light detector and the intelligent automobile headlamp to be detected are aligned one by one respectively in a mode of moving the light detector, so that the situation that the light of the automobile is not completely projected onto the light detector due to the fact that the automobile is parked nonstandard is avoided, and the fact that the light detector can effectively measure the light intensity of the intelligent automobile headlamp is guaranteed.
And S203, detecting the light intensity of the detected intelligent automobile headlamp through the light detector.
An Adaptive Front-lighting System (AFS) can automatically adjust the deflection of headlamps according to the angle of the steering wheel of the vehicle, the rate of deflection of the vehicle, and the driving speed, and keep the direction of the headlamps consistent with the current driving direction of the vehicle, so that the "not reached" area can be illuminated in advance, and omnidirectional safety lighting is provided, thereby significantly enhancing the safety of driving in the dark.
It should be noted that after the detected intelligent automobile headlamp is subjected to static fixed point light intensity detection, the detected intelligent automobile headlamp can be subjected to dynamic light intensity detection for the detected automobile with the AFS function by combining the characteristics of the AFS system.
Specifically, the step of performing dynamic light intensity detection on the subject vehicle includes:
(1) adjusting the steering wheel angle of the motor vehicle with the AFS function so that the speed of the detected intelligent automobile headlamp is adaptively and dynamically adjusted along with the steering wheel angle;
(2) generating real-time adjustment information according to the steering wheel angle;
it should be noted that the theoretical deflection value of the detected intelligent automobile headlamp can be calculated according to the steering wheel angle of the detected vehicle adjusted by the detector, and then the next optimal theoretical position of the lamp light detector can be calculated by combining the real-time position state of the lamp light detector after step S203 is completed. When the light detector is located at the detection position, the light detector can be ensured to carry out light intensity detection on the detected intelligent automobile headlamp.
(3) Driving the lamplight detector to rotate and horizontally move in real time according to the adjustment information so as to enable the lamplight detector and the detected intelligent automobile to move synchronously;
(4) and carrying out real-time light intensity detection on the detected intelligent automobile headlamp through the light detector.
In the synchronous moving process, the light detector detects the light intensity of the detected intelligent automobile headlamp in the deflection process in real time, so that whether the intelligent automobile headlamp generates light intensity change in the deflection process is judged, and the safety of the motor vehicle with the AFS function can be ensured as long as the light intensity of the intelligent automobile headlamp in the deflection process is unchanged and within a normal range.
And S204, repeating the steps S201-S203 until all the intelligent automobile headlights are detected.
Correspondingly, according to the steps of dynamic light intensity detection, all intelligent automobile headlamps can be dynamically detected in real time.
Furthermore, the operating state of the lamplight detector can be remotely checked through the Internet of things technology.
Therefore, the light detector can be automatically moved according to the preset detection flow, one-to-one alignment between the light detector and the detected intelligent automobile headlamp is realized, and light rays emitted by the detected intelligent automobile headlamp can be irradiated to the light detector, so that the light intensity value is detected more accurately.
Referring to fig. 4, fig. 4 is a flowchart illustrating an embodiment of moving the light detector to align the center line of the light beam transmitting surface of the detected intelligent car headlamp with the detection center line of the light detector according to the present invention, including:
s301, measuring the parking state of the detected vehicle, and generating movement information according to the parking state.
Specifically, the step of measuring a parking state of the detected vehicle and generating movement information according to the parking state includes:
(1) and scanning the detected vehicle in a radar mode to generate parking state data and vehicle head outline surface data for representing the state of the detected vehicle.
The scanning detection radar can rotate along the horizontal direction through the rotating shaft, scans from one side of the vehicle to the other side of the vehicle, and generates parking state data and vehicle head outline surface data used for representing the vehicle state.
(2) And calculating the detection position of the lamplight detector according to the parking state data and the vehicle head outline surface data.
The detection position is an optimal theoretical position for the light detector to accurately realize the detection of the light intensity of the vehicle. When the light detector is located at the detection position, the light detector can be aligned with the detected intelligent automobile headlamp.
(3) And calculating the movement information of the lamplight detector according to the detection position and the current position of the lamplight detector.
Wherein the movement information includes rotation information, vertical movement information, and horizontal movement information.
And S302, driving the light detector to rotate according to the movement information so that the detection surface of the light detector is parallel to the light beam transmitting surface of the intelligent automobile headlamp to be detected.
And S303, driving the lamplight detector to vertically move according to the movement information so that the center line of the detection surface and the center line of the light beam transmitting surface of the detected intelligent automobile headlamp are on the same horizontal plane.
S304, driving the lamplight detector to move horizontally according to the movement information, so that the center line of the detection surface and the center line of the light beam transmitting surface of the detected intelligent automobile headlamp are on the same vertical surface.
There is no inevitable sequence among the steps S302, S303, and S304, and the steps S302 and S303 and S304 may be performed simultaneously.
Therefore, the position and angle of the light detector in multiple directions can be adjusted through steps S302, S303, and S304, so that the light detector can be accurately moved to the detection position.
As shown in fig. 5, the intelligent automobile headlamp light intensity detection system of the present invention includes an upper computer 1, a light detector 2 and an OBD module 3, wherein the OBD module 3 is used for responding to an instruction of the upper computer.
Before the detection is started, the connection between the upper computer 1 and the OBD module 3 of the detected vehicle can be established, so that the OBD module 3 of the detected vehicle is electrified; at this time, the upper computer 1 can control the detected vehicle by sending an instruction to the detected vehicle OBD module 3.
As shown in fig. 6, the upper computer 1 includes:
and the acquisition module 11 is used for acquiring the license plate information of the detected vehicle on the detection station. Specifically, the license plate information of the detected vehicle entering the detection station can be collected through the camera, and the license plate information is sent to the acquisition module of the upper computer, so that the upper computer can acquire the license plate information of the detected vehicle on the detection station in time.
And the extraction module 12 is configured to extract vehicle information of the detected vehicle according to the license plate information. The vehicle information includes, but is not limited to, a vehicle model, and intelligent headlamp data (e.g., number of intelligent headlamps, size, whether an intelligent headlamp automatic shielding function is available, etc.).
And the judging module 13 is used for judging whether the detected vehicle has an intelligent headlamp automatic shielding function or not according to the vehicle information.
And the instruction generating module 14 is used for generating a function closing instruction when the judging module 13 judges that the detected vehicle has the intelligent headlamp automatic shielding function.
And the sending module 15 is configured to send the function closing instruction to the OBD module of the detected vehicle so as to close an automatic shielding function of an intelligent headlamp of the detected vehicle.
And the detection module 16 is used for carrying out intelligent automobile headlamp light intensity detection on the detected vehicle according to the detection process.
It should be noted that, in order to avoid automatic turning off or shielding of the intelligent headlamp in the detection process, when the judging module 13 judges that the detected vehicle has the automatic shielding function of the intelligent headlamp, the instruction generating module 14 generates a function turning-off instruction, and sends the function turning-off instruction to the OBD module 2 of the detected vehicle through the sending module 15 to turn off the automatic shielding function of the intelligent headlamp of the detected vehicle, at this time, even a luxury vehicle equipped with the automatic light-avoiding function of the intelligent headlamp can perform the detection of the light intensity of the intelligent headlamp according to the existing detection flow through the detecting module 16. Accordingly, when the judging module 13 judges that the detected vehicle does not have the automatic shielding function of the intelligent headlamp, the detection module 16 can directly detect the light intensity of the intelligent headlamp according to the existing detection process.
Therefore, the invention can realize that the function of the automatic avoidance technology is temporarily disabled by the control of the OBD module 3 after the automobile travels to the designated position, and the function is recovered to the normal target after the detection is finished; therefore, the universality and the practicability of the intelligent automobile headlamp light intensity detection method are ensured on the basis of not changing the existing intelligent automobile headlamp light intensity detection method.
Further, the detection module 16 includes a vehicle control unit 161 and a detector control unit 162, specifically:
the vehicle control unit 161 is used for driving the OBD module to start the detected intelligent automobile headlight and turning off other detected intelligent automobile headlights. In the detection process, the vehicle control unit 161 may send an instruction to the OBD module 3 of the detected vehicle according to a preset automatic detection process, and control the light state (i.e. turn on/off the smart car headlight) through the OBD module 3.
The detector control unit 162 is configured to drive the light detector so that a center line of a light beam transmitting surface of the detected intelligent automobile headlamp is aligned with a detection center line of the light detector, and is further configured to drive the light detector so that the light detector and the detected intelligent automobile headlamp move synchronously. It should be noted that the detector control unit 163 may be in interactive communication with the light detectors, and drive the light detectors 2 according to the light detection sequence.
In the detection process, different detected intelligent automobile headlights need to be detected respectively. Specifically, the accessible removes the mode of light detector 2, aligns light detector 2 and the intelligent automobile headlight that is examined respectively one by one, avoids on the vehicle light throws the light detector totally because of the vehicle parks not standard, guarantees that light detector 2 can effectively measure the light intensity of intelligent automobile headlight.
As shown in fig. 7, the light detector 2 includes:
and the detection surface 21 is used for carrying out intelligent automobile headlamp light intensity detection on the detected vehicle.
And the processing module 22 is used for measuring the parking state of the detected vehicle, generating movement information according to the parking state and generating real-time adjustment information according to the angle of the steering wheel.
The rotating module 23 is configured to drive the light detector to rotate according to the movement information, so that a detection surface of the light detector is parallel to a light beam transmitting surface of the intelligent automobile headlamp to be detected; meanwhile, the rotating module 23 is further configured to drive the light detector to rotate according to the adjustment information. Preferably, the horizontal moving module 23 may be a rotating shaft, but is not limited thereto, as long as the rotation of the light detector can be achieved.
And the vertical moving module 24 is used for driving the light detector to vertically move according to the movement information so that the central line of the detection surface and the central line of the light beam transmitting surface of the detected intelligent automobile headlamp are on the same horizontal plane. Preferably, the horizontal moving module 24 may be a vertical guide rail, but is not limited thereto as long as the vertical movement of the light detector can be achieved.
The horizontal moving module 25 is used for driving the lamplight detector to move horizontally according to the movement information so that the central line of the detection surface and the central line of the light beam transmitting surface of the detected intelligent automobile headlamp are on the same vertical surface; meanwhile, the horizontal movement module 25 is further configured to drive the light detector to move horizontally according to the adjustment information. Preferably, the horizontal moving module 25 may be a guide rail in a horizontal direction, but is not limited thereto as long as the horizontal movement of the light detector can be achieved.
Therefore, the position and angle of the light detector in multiple directions can be adjusted through the rotating module 23, the vertical moving module 24 and the horizontal moving module 25, so that the light detector can be accurately moved to the detection position. Meanwhile, the light detector and the intelligent automobile headlamp can synchronously move through the rotating module 23 and the horizontal moving module 25, so that real-time dynamic light intensity detection of the intelligent automobile headlamp is realized.
Further, the processing module 22 includes a scanning unit 221, a first calculating unit 222 and a second calculating unit 223, specifically:
the scanning unit 221 is configured to scan the vehicle to be detected by a radar method, and generate parking state data and vehicle head outline surface data indicating a state of the vehicle to be detected. The radar can be rotated in the horizontal direction by the rotating shaft, and scanned from one side of the vehicle to the other side thereof, thereby generating parking state data and vehicle head contour surface data representing the vehicle state.
The first calculating unit 222 is configured to calculate the detection position of the light detector 2 according to the parking state data and the vehicle head contour surface data. The detection position is the optimal theoretical position for the lamplight detector 2 to accurately realize the detection of the light intensity of the vehicle. When the light detector 2 is at the detection position, the light detector 2 can be ensured to be aligned with the detected intelligent automobile headlamp.
The second calculating unit 223 is configured to calculate the movement information of the light detector 2 according to the detection position and the current position of the light detector 2. Wherein the movement information includes rotation information, vertical movement information, and horizontal movement information.
Therefore, the light detector 2 can be automatically moved according to the preset detection process, one-to-one alignment between the light detector and the detected intelligent automobile headlamp is realized, and the light emitted by the detected intelligent automobile headlamp can be irradiated to the light detector, so that the light intensity value can be detected more accurately.
While the foregoing is directed to the preferred embodiment of the present invention, 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.
Claims (10)
1. The intelligent automobile headlamp light intensity detection method is characterized by comprising the following steps:
acquiring license plate information of a detected vehicle on a detection station;
extracting vehicle information of the detected vehicle according to the license plate information;
judging whether the detected vehicle has an intelligent headlamp automatic shielding function or not according to the vehicle information,
if not, the intelligent automobile headlight light intensity detection is carried out on the detected vehicle according to the detection flow,
and if so, generating a function closing instruction, sending the function closing instruction to the OBD module of the detected vehicle to close the automatic shielding function of the intelligent headlamp of the detected vehicle, and then carrying out intelligent automobile headlamp light intensity detection on the detected vehicle according to a detection flow.
2. The intelligent method for detecting the light intensity of the automobile headlamp as claimed in claim 1, further comprising: and after the light intensity detection of the intelligent automobile headlamp is completed, the connection with the OBD module of the detected automobile is disconnected so as to restart the automatic shielding function of the intelligent headlamp of the detected automobile.
3. The intelligent automobile headlamp light intensity detection method as claimed in claim 1, wherein the step of performing intelligent automobile headlamp light intensity detection on the detected vehicle according to the detection process comprises:
s1, starting the detected intelligent automobile headlamp, and closing other detected intelligent automobile headlamps;
s2, moving the light detector to align the central line of the light beam transmitting surface of the detected intelligent automobile headlamp with the detection central line of the light detector;
s3, detecting the light intensity of the detected intelligent automobile headlight through the light detector;
and S4, repeating the steps S1-S3 until all intelligent automobile headlights are detected.
4. The method as claimed in claim 3, wherein the step of moving the light detector to align the center line of the light beam transmitting surface of the intelligent car headlight with the detection center line of the light detector comprises:
measuring the parking state of the detected vehicle, and generating movement information according to the parking state;
driving the light detector to rotate according to the movement information so that the detection surface of the light detector is parallel to the light beam transmitting surface of the intelligent automobile headlamp to be detected;
driving the lamplight detector to vertically move according to the movement information so that the center line of the detection surface and the center line of a light beam transmitting surface of the detected intelligent automobile headlamp are on the same horizontal plane;
and driving the lamplight detector to move horizontally according to the movement information so that the center line of the detection surface and the center line of the light beam transmitting surface of the detected intelligent automobile headlamp are on the same vertical surface.
5. The intelligent car headlight intensity detection method as claimed in claim 4, wherein said step of measuring a parking status of the detected car and generating the movement information according to the parking status comprises:
scanning a detected vehicle in a radar mode, and generating parking state data and vehicle head outline surface data for representing the state of the detected vehicle;
calculating the detection position of the lamplight detector according to the parking state data and the vehicle head outline surface data;
and calculating the movement information of the lamplight detector according to the detection position and the current position of the lamplight detector.
6. The intelligent headlight intensity detection method of claim 3, wherein the step S3 is followed by further comprising:
adjusting the steering wheel angle of the motor vehicle with the AFS function so that the speed of the detected intelligent automobile headlamp is adaptively and dynamically adjusted along with the steering wheel angle;
generating real-time adjustment information according to the steering wheel angle;
driving the lamplight detector to rotate and horizontally move in real time according to the adjustment information so as to enable the lamplight detector and the detected intelligent automobile to move synchronously;
and carrying out real-time light intensity detection on the detected intelligent automobile headlamp through the light detector.
7. A host computer, comprising:
the acquisition module is used for acquiring the license plate information of the detected vehicle on the detection station;
the extraction module is used for extracting the vehicle information of the detected vehicle according to the license plate information;
the judging module is used for judging whether the detected vehicle has an intelligent headlamp automatic shielding function or not according to the vehicle information;
the command generation module is used for generating a function closing command when the judgment module judges that the detected vehicle has the intelligent headlamp automatic shielding function;
the sending module is used for sending the function closing instruction to the OBD module of the detected vehicle so as to close the automatic shielding function of the intelligent headlamp of the detected vehicle;
and the detection module is used for carrying out intelligent automobile headlamp light intensity detection on the detected vehicle according to the detection flow.
8. The upper computer of claim 7, wherein the detection module comprises:
the vehicle control unit is used for driving the OBD module to start the detected intelligent automobile headlamp and turn off other detected intelligent automobile headlamps;
and the detector control unit is used for driving the light detector so as to align the central line of the light beam transmitting surface of the detected intelligent automobile headlamp with the detection central line of the light detector, and is also used for driving the light detector so as to synchronously move the light detector and the detected intelligent automobile headlamp.
9. A light detector, comprising:
the detection surface is used for carrying out intelligent automobile headlamp light intensity detection on the detected vehicle;
the processing module is used for measuring the parking state of the detected vehicle, generating movement information according to the parking state and generating real-time adjustment information according to the angle of the steering wheel;
the rotating module is used for driving the lamplight detector to rotate according to the movement information and the adjustment information;
the vertical moving module is used for driving the lamplight detector to vertically move according to the movement information so that the central line of the detection surface and the central line of a light beam transmitting surface of the detected intelligent automobile headlamp are on the same horizontal plane;
and the horizontal movement module is used for driving the light detector to move horizontally according to the movement information and the adjustment information.
10. The utility model provides an intelligence car headlight light intensity detecting system which characterized in that includes:
the upper computer according to claim 7 or 8;
the light detector of claim 9;
and the OBD module is used for responding to the instruction of the upper computer.
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