Disclosure of Invention
The invention aims to solve the technical problem of providing an intelligent automobile headlight intensity detection method, an intelligent automobile headlight intensity detection system, an upper computer and a headlight detector, which can automatically turn off the automatic light avoidance function of a detected automobile in the detection process.
In order to solve the technical problems, the invention provides a method for detecting the intensity of headlight of an intelligent automobile, 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 headlight automatic shielding function according to the vehicle information, if not, detecting the intelligent headlight intensity of 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 intelligent headlight automatic shielding function of the detected vehicle, and detecting the intelligent headlight intensity of the detected vehicle according to the detection flow.
As an improvement of the scheme, the intelligent automobile headlight intensity detection method further comprises the following steps: after the intelligent automobile headlight intensity detection is completed, the connection with the OBD module of the detected automobile is disconnected, so that the intelligent headlight automatic shielding function of the detected automobile is restarted.
As an improvement of the scheme, the step of detecting the intelligent automobile headlight intensity of the detected vehicle according to the detection flow comprises the following steps: s1, starting a detected intelligent automobile headlight, and closing other intelligent automobile headlights to be detected; s2, moving the light detector to align the central line of the light beam transmission surface of the detected intelligent automobile headlight with the detection central line of the light detector; s3, detecting the light intensity of the detected intelligent automobile headlight through the light detector; s4, repeating the steps S1-S3 until all intelligent automobile headlamps finish detection.
As an improvement of the above solution, the step of moving the light detector to align the center line of the light beam transmitting surface of the detected intelligent automobile headlight 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 transmission surface of the detected intelligent automobile headlight; 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 transmission surface of the detected intelligent automobile headlight are on the same horizontal plane; and driving the lamplight detector to horizontally move according to the movement information, so that the central line of the detection surface and the central line of the beam light transmission surface of the intelligent automobile headlight to be detected are on the same vertical surface.
As an improvement of the above-described aspect, the step of measuring a parking state of the subject vehicle and generating movement information according to the parking state includes: scanning the detected vehicle in a radar mode to generate parking state data and headstock 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 headstock 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, the step S3 further includes: adjusting the steering wheel angle of the motor vehicle with the AFS function so as to enable the detected intelligent automobile headlight speed to be 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 intelligent automobile to be detected to synchronously move; and detecting the light intensity of the detected intelligent automobile headlight in real time through the light detector.
Correspondingly, the invention also provides an upper computer, which comprises: the acquisition module is used for acquiring license plate information of the detected vehicle on the detection station; the extraction module is used for extracting 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 headlight automatic shielding function or not according to the vehicle information; the instruction generation module is used for generating a function closing instruction when the judging module judges that the detected vehicle has the intelligent headlight 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 intelligent headlight automatic shielding function of the detected vehicle; and the detection module is used for detecting the intelligent automobile headlight intensity of 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 headlight and closing other intelligent automobile headlights to be detected; the detector control unit is used for driving the light detector to align the central line of the light beam light transmission surface of the detected intelligent automobile headlight with the detection central line of the light detector, and is also used for driving the light detector to enable the light detector to synchronously move with the detected intelligent automobile.
Correspondingly, the invention also provides a lamplight detector, which comprises: the detection surface is used for detecting the intensity of the intelligent automobile headlight for the detected vehicle; the processing module is used for measuring the parking state of the detected vehicle, generating moving information according to the parking state and generating real-time adjustment information according to the steering wheel angle; the rotation module is used for driving the lamplight detector to rotate according to the movement information and the adjustment information; the vertical movement 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 the beam light transmission surface of the intelligent automobile headlight to be detected are on the same horizontal plane; and the horizontal movement module is used for driving the lamplight detector to horizontally move according to the movement information and the adjustment information.
Correspondingly, the invention also provides an intelligent automobile headlight intensity detection system, which comprises the upper computer, the lamplight detector and the 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:
According to the invention, the vehicle information of the detected vehicle can be automatically detected, and the automatic avoidance technical function can be controlled to be temporarily disabled through the OBD module aiming at the vehicle with the intelligent headlight automatic shielding function, and the automatic avoidance technical function is recovered to be normal after the detection is finished; and aiming at the vehicle without the intelligent headlight automatic shielding function, the vehicle is processed according to the normal detection flow. Therefore, the universality and the practicability of the intelligent automobile headlight intensity detection method are ensured on the basis of not changing the existing intelligent automobile headlight intensity detection method.
In addition, the invention can respectively align the light detector with the detected intelligent automobile headlight one by one in a mode of moving the light detector, thereby avoiding incomplete projection of the light of the automobile on the light detector caused by nonstandard parking of the automobile and ensuring that the light detector can effectively measure the light intensity of the intelligent automobile headlight.
Further, aiming at the motor vehicle with the AFS function, the invention can adjust the position of the light detector in real time according to the steering wheel angle of the motor vehicle and measure the light intensity information of the intelligent automobile headlight in the deflection process in real time, thereby determining whether the intelligent automobile headlight generates light intensity change in the deflection process so as to ensure the safety of the motor vehicle with the AFS function.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings, for the purpose of making the objects, technical solutions and advantages of the present invention more apparent.
Referring to fig. 2, fig. 2 shows a flowchart of an embodiment of a method for detecting headlight intensity of a smart car according to the present invention, which includes:
S101, license plate information of the detected vehicle on the detection station is obtained.
Specifically, the license plate information of the detected vehicle entering the detection station can be collected through the camera and sent to the upper computer, so that the upper computer can timely obtain the license plate information of the detected vehicle on the detection station.
S102, extracting vehicle information of the detected vehicle according to the license plate information.
The vehicle information includes, but is not limited to, vehicle model number, intelligent headlight data (e.g., number, size, whether or not the intelligent headlight has an automatic shade function, etc.).
S103, judging whether the detected vehicle has an intelligent headlight automatic shielding function according to the vehicle information.
Before starting detection, the connection between the upper computer and the OBD module of the detected vehicle can be established to enable the OBD module of the detected vehicle to be electrified; at this time, the upper computer can control the detected vehicle by sending an instruction to the detected vehicle OBD module.
And S104, if not, detecting the intelligent automobile headlight intensity of the detected automobile according to the detection flow.
When judging that the detected vehicle does not have the intelligent headlight automatic shielding function, detecting the intelligent automobile headlight intensity of the detected vehicle according to the existing detection flow.
And S105, when the detection flow is judged to be yes, generating a function closing instruction, sending the function closing instruction to the OBD module of the detected vehicle so as to close the intelligent headlight automatic shielding function of the detected vehicle, and then detecting the intelligent automobile headlight intensity of the detected vehicle according to the detection flow.
In order to avoid the automatic extinction or shielding of the intelligent headlight in the detection process, when the detected vehicle is judged to have the automatic shielding function of the intelligent headlight, 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 headlight of the detected vehicle. At this time, even the luxury car equipped with the automatic light avoidance function of the intelligent headlight can also detect the intensity of the intelligent car headlight according to the existing detection flow.
Further, after the intelligent automobile headlight intensity detection is completed, the intelligent headlight automatic shielding function of the detected vehicle can be restarted by disconnecting the upper computer from the detected vehicle OBD module.
Therefore, the invention can realize the aim of controlling the automatic avoidance technology function to temporarily lose efficacy through the OBD module after the automobile walks to the appointed position, and recovering the function to be normal after the detection is finished; therefore, the universality and the practicability of the intelligent automobile headlight intensity detection method are ensured on the basis of not changing the existing intelligent automobile headlight intensity detection method.
Referring to fig. 3, fig. 3 shows a flowchart of an embodiment of the present invention for detecting the intensity of a headlight of an intelligent vehicle according to a detection procedure, which includes:
S201, starting the detected intelligent automobile headlight and closing other intelligent automobile headlights to be detected.
In the detection process, the upper computer can send an instruction to the OBD module of the detected vehicle according to a preset automatic detection flow, and the OBD module is used for controlling the light state (namely starting/closing the intelligent automobile headlight). Specifically, the control sequence of the lamps in the automatic detection process of different types of vehicles is as follows:
(1) The two-lamp vehicle adopts a left parking mode to detect the far light of a left main lamp, the near light of the left main lamp, the passing light, the far light of a right main lamp and the near light of the right main lamp;
(2) The two-lamp vehicle adopts a right parking mode for detection, namely a right main lamp far beam, a right main lamp low beam, a passing lamp, a left main lamp far beam and a left main lamp low beam;
(3) Four lamp system vehicles adopt left berth mode to detect: left auxiliary lamp far light-left main lamp near light-passing lamp-right auxiliary lamp far light-right main lamp near light;
(4) Four lamp system vehicles adopt right stop mode to detect: far light of right auxiliary lamp-far light of right main lamp-near light of right main lamp-passing the lamp-left auxiliary lamp far beam-left main lamp near beam.
S202, moving the light detector to align the central line of the light beam transmission surface of the detected intelligent automobile headlight with the detection central line of the light detector.
It should be noted that, the OBD module may interactively communicate with the light detector and drive the light detector according to the light detection sequence;
In the detection process, different detected intelligent automobile headlamps are required to be detected respectively. Specifically, the mode of accessible removal light detector carries out the one-to-one with light detector and the intelligent automobile headlight that is examined respectively, avoids leading to the vehicle light to not throw to light detector completely because of the vehicle parks nonstandard on, guarantees that light detector can effectively measure the light intensity of intelligent automobile headlight.
S203, detecting the light intensity of the detected intelligent automobile headlight through the light detector.
The AFS (Adaptive Front-LIGHTING SYSTEM) can automatically adjust the deflection of the headlight according to the angle of the steering wheel of the automobile, the deflection rate of the automobile and the running speed, and keep the light direction consistent with the current running direction of the automobile so as to illuminate the 'unreachable' area in advance and provide omnibearing safety illumination, thereby obviously enhancing the driving safety in darkness.
After static fixed-point light intensity detection is performed on the detected intelligent automobile headlight, dynamic light intensity detection can be performed on the detected automobile with the AFS function by combining the characteristics of the AFS system.
Specifically, the step of dynamically detecting the light intensity of the vehicle to be inspected includes:
(1) Adjusting the steering wheel angle of the motor vehicle with the AFS function so as to enable the detected intelligent automobile headlight speed to be 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 headlight can be calculated according to the steering wheel angle of the detected automobile adjusted by the inspector, and then the next optimal theoretical position of the light detector can be calculated by combining the real-time position state of the light detector after the step S203 is completed. When the light detector is positioned at the detection position, the light detector can be guaranteed to detect the light intensity of the detected intelligent automobile headlight.
(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 intelligent automobile to be detected to synchronously move;
(4) And detecting the light intensity of the detected intelligent automobile headlight in real time through the light detector.
In the synchronous movement process, the light detector detects the light intensity of the detected intelligent automobile headlight in the deflection process in real time, so as to judge whether the intelligent automobile headlight generates light intensity change in the deflection process, and the safety of the motor vehicle with the AFS function can be ensured only by determining that the light intensity of the intelligent automobile headlight in the deflection process is unchanged and is in a normal range.
S204, repeating the steps S201-S203 until all intelligent automobile headlamps are detected.
Correspondingly, according to the step of detecting the dynamic light intensity, all intelligent automobile headlamps can be dynamically detected in real time.
Further, the running state of the light detector can be checked remotely through the technology of the Internet of things.
Therefore, the invention can automatically move the light detector according to the preset detection flow, realize one-to-one alignment between the light detector and the detected intelligent automobile headlight, and ensure that the light emitted by the detected intelligent automobile headlight can be irradiated to the light detector, thereby detecting the light intensity value more accurately.
Referring to fig. 4, fig. 4 shows a flowchart of an embodiment of moving a light detector to align a center line of a light transmitting surface of a detected intelligent automobile headlight with a detection center line of the light detector, which includes:
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 subject vehicle and generating movement information according to the parking state includes:
(1) The vehicle to be inspected is scanned by a radar method, and parking state data and headstock outline surface data for representing the state of the vehicle to be inspected are generated.
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, and generates parking state data and headstock outline data for representing the state of the vehicle.
(2) And calculating the detection position of the lamplight detector according to the parking state data and the headstock outline surface data.
The detection position is the optimal theoretical position for accurately detecting the light intensity of the vehicle by the light detector. When the light detector is positioned at the detection position, the light detector can be aligned with the detected intelligent automobile headlight.
(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.
S302, driving the lamplight detector to rotate according to the movement information, so that the detection surface of the lamplight detector is parallel to the light beam transmission surface of the intelligent automobile headlight to be detected.
And S303, 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 the beam light transmission surface of the intelligent automobile headlight to be detected are on the same horizontal plane.
And S304, driving the lamplight detector to horizontally move according to the movement information, so that the central line of the detection surface and the central line of the beam light transmission surface of the intelligent automobile headlight to be detected are on the same vertical surface.
The steps S302, S303, and S304 are not necessarily sequential, and the steps S302 and S303 and S304 may be performed simultaneously.
Therefore, through steps S302, S303 and S304, the position and angle adjustment of the light detector in multiple directions can be realized, so that the light detector can be accurately moved to the detection position.
As shown in FIG. 5, the intelligent automobile headlight intensity detection system comprises an upper computer 1, a light detector 2 and an OBD module 3, wherein the OBD module 3 is used for responding to instructions of the upper computer.
Before starting detection, 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 host computer 1 can control the vehicle to be inspected by sending an instruction to the vehicle OBD module 3 to be inspected.
As shown in fig. 6, the host computer 1 includes:
the acquisition module 11 is used for acquiring license plate information of the detected vehicle at 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 extracting module 12 is used for extracting the vehicle information of the detected vehicle according to the license plate information. The vehicle information includes, but is not limited to, vehicle model number, intelligent headlight data (e.g., number, size, whether or not the intelligent headlight has an automatic shade function, etc.).
And the judging module 13 is used for judging whether the detected vehicle has an intelligent headlight automatic shielding function according to the vehicle information.
The instruction generating module 14 is configured to generate a function closing instruction when the judging module 13 judges that the detected vehicle has an intelligent headlight automatic shielding function.
And the sending module 15 is used for sending the function closing instruction to the OBD module of the detected vehicle so as to close the intelligent headlight automatic shielding function of the detected vehicle.
And the detection module 16 is used for detecting the headlight intensity of the intelligent automobile for the detected vehicle according to the detection flow.
It should be noted that, in order to avoid the automatic extinction or shielding of the intelligent headlight in the detection process, when the judging module 13 judges that the detected vehicle has the automatic shielding function of the intelligent headlight, the instruction generating module 14 generates a function closing instruction, and sends the function closing instruction to the OBD module 2 of the detected vehicle through the sending module 15 to close the automatic shielding function of the intelligent headlight of the detected vehicle, at this time, even a luxury vehicle equipped with the automatic shielding function of the lamp light of the intelligent headlight can also perform the intelligent automobile headlight intensity detection according to the existing detection flow through the detecting module 16. Correspondingly, when the judging module 13 judges that the detected vehicle does not have the intelligent headlight automatic shielding function, the intelligent automobile headlight intensity detection can be directly performed through the detecting module 16 according to the existing detecting flow.
Therefore, the invention can realize the aim of controlling the automatic avoidance technology function to temporarily fail through the OBD module 3 after the automobile walks to the appointed position, and recovering the function to be normal after the detection is finished; therefore, the universality and the practicability of the intelligent automobile headlight intensity detection method are ensured on the basis of not changing the existing intelligent automobile headlight 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 turn off other intelligent automobile headlights to be detected. During 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 procedure, and control the light state (i.e. start/turn off the intelligent automobile headlight) through the OBD module 3.
The detector control unit 162 is used for driving the light detector to align the center line of the light beam transmission surface of the detected intelligent automobile headlight with the detection center line of the light detector, and is also used for driving the light detector to enable the light detector to move synchronously with the detected intelligent automobile headlight. It should be noted that, the detector control unit 163 may interactively communicate with the light detector, and drive the light detector 2 according to the light detection sequence.
In the detection process, different detected intelligent automobile headlamps are required to be detected respectively. Specifically, the mode of accessible removal light detector 2 carries out the one-to-one with light detector 2 and the intelligent automobile headlight that is examined respectively, avoids leading to the vehicle light to not throw to light detector completely because of the vehicle parks nonstandard on, 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:
The detection surface 21 is used for detecting the intensity of the headlight of the intelligent automobile on the detected vehicle.
The processing module 22 is configured to measure a parking state of the vehicle to be detected, generate movement information according to the parking state, and generate real-time adjustment information according to the steering wheel angle.
The rotation module 23 is used for driving the lamplight detector to rotate according to the movement information so that the detection surface of the lamplight detector is parallel to the light beam transmission surface of the intelligent automobile headlight to be detected; meanwhile, the rotation module 23 is further configured to drive the light detector to rotate according to the adjustment information. Preferably, the horizontal movement module 23 may be a rotation shaft, but is not limited thereto, so long as the rotation of the light detector is achieved.
And the vertical movement module 24 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 the beam light transmission surface of the intelligent automobile headlight to be detected are on the same horizontal plane. Preferably, the horizontal movement module 24 may be a guide rail in a vertical direction, but is not limited thereto, so long as vertical movement of the light detector is achieved.
The horizontal movement module 25 is used for driving the lamplight detector to horizontally move according to the movement information so that the central line of the detection surface and the central line of the beam light transmission surface of the intelligent automobile headlight to be detected 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 movement module 25 may be a horizontal guide rail, but is not limited thereto, so long as the horizontal movement of the light detector is achieved.
Therefore, the rotation module 23, the vertical movement module 24 and the horizontal movement module 25 can realize the position and angle adjustment of the lamplight detector in multiple directions, so that the lamplight detector can accurately move to the detection position. Meanwhile, the synchronous movement of the light detector and the intelligent automobile headlight can be realized through the rotating module 23 and the horizontal movement module 25, so that the real-time dynamic light intensity detection of the intelligent automobile headlight 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 inspected by a radar method, and generate parking state data and head outline data indicating the state of the vehicle to be inspected. The radar is rotatable in a horizontal direction through a rotation axis, and scans from one side of the vehicle to the other side, generating parking state data and headstock outline data for representing the state of the vehicle.
The first calculating unit 222 is configured to calculate a detection position of the light detector 2 according to the parking state data and the vehicle head profile data. The detection position is the optimal theoretical position for accurately detecting the light intensity of the vehicle by the light detector 2. When the light detector 2 is positioned at the detection position, the light detector 2 can be aligned with the detected intelligent automobile headlight.
The second calculating unit 223 is configured to calculate movement information of the light detector 2 according to the detected 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 invention can automatically move the light detector 2 according to the preset detection flow, realize one-to-one alignment between the light detector and the detected intelligent automobile headlight, and ensure that the light emitted by the detected intelligent automobile headlight can be irradiated to the light detector, thereby detecting the light intensity value more accurately.
While the foregoing is directed to the preferred embodiments of the present invention, it will be appreciated by those skilled in the art that changes and modifications may be made without departing from the principles of the invention, such changes and modifications are also intended to be within the scope of the invention.