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CN113212125A - Control system and method for automatically adjusting shielding of windshield for high beam - Google Patents

Control system and method for automatically adjusting shielding of windshield for high beam Download PDF

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Publication number
CN113212125A
CN113212125A CN202110512568.1A CN202110512568A CN113212125A CN 113212125 A CN113212125 A CN 113212125A CN 202110512568 A CN202110512568 A CN 202110512568A CN 113212125 A CN113212125 A CN 113212125A
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China
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windshield
information
scanner
vehicle
electrochromic
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Inventor
崔传波
贾贝贝
邓存宝
陈艳坤
宋志强
韩青
高涛
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Taiyuan University of Technology
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Taiyuan University of Technology
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60JWINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FOR VEHICLES
    • B60J3/00Antiglare equipment associated with windows or windscreens; Sun visors for vehicles
    • B60J3/04Antiglare equipment associated with windows or windscreens; Sun visors for vehicles adjustable in transparency

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
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Abstract

The invention relates to a control system and a control method for automatically adjusting a windshield to shield a high beam, which utilize electrochromic glass, image recognition, a radar ranging sensor and a 3D scanner to darken through a windshield area module, weaken the light intensity of a beam of the high beam directly irradiating eyes, and solve the problem of meeting safety. The system consists of an information acquisition system, an information analysis system and an adjustment execution system. The information acquisition system consists of a miniature camera, a radar ranging sensor, a human face 3D scanner and a 3D scanner and is responsible for acquiring position information inside and outside the vehicle in real time; the information analysis system is responsible for receiving information, identifying images and sending instructions to the adjustment execution system; the adjusting and executing system is composed of electrochromic glass system components and mainly receives an instruction issued by the information analyzing system, and the appointed grids are changed in color by the electrochromic glass system to weaken the intensity of light beams, avoid the situation that strong light beams directly irradiate eyes and ensure the safe driving of the vehicle.

Description

Control system and method for automatically adjusting shielding of windshield for high beam
Technical Field
The invention relates to the technical field of vehicle safety, in particular to a control system and a control method for automatically adjusting a windshield to shield a high beam.
Background
Automobile driving safety is a big subject of current world research, and night driving lighting problem is an important reason for high accident rate of traffic. According to statistics, the proportion of the number of major accidents in night driving is about 1.5 times of that in daytime.
When driving at night, the driver usually chooses to turn on the high beam to have a better view and a safer psychological feeling. Although the distance between the illumination brightness and the sight line can be increased by lighting a high beam, the high beam can be straightly irradiated to the eyes of a driver of the opposite vehicle during meeting, so that the sight of the driver is directly influenced, and dazzling and short visual blind areas are caused; when the driver drives in the same direction, if the far-reaching headlamp light hits the rearview mirror of the front vehicle, the driver of the front vehicle is indirectly influenced to observe the traffic situation behind through the rearview mirror, and traffic accidents are likely to happen. Therefore, the requirement of the implementation regulations of the road traffic safety law in China is that the high beam lamps and the low beam lamps are switched to be closed when the vehicles meet at night and are 150m away from the opposite vehicle. However, frequent manual dimming operation not only increases the driving burden of the driver, but also may cause unstable direction and unclear vision when switching the lights, thereby causing potential safety hazards. Thus, a system that can intelligently adjust the high beam light that obscures the direct driver's eyes can solve such problems.
Among the prior art, the system of intelligence switching car LED lamp has been developed, has really solved the safety problem that the high beam dazzles and artifical light change probably causes when meeting at present, and intelligent regulation, intellectuality are high, still have because the high beam switches into the low beam field of vision not good, the switch that makes a round trip leads to the lamp life to shorten scheduling problem.
And a high beam system which is composed of a plurality of LED lamps and intelligently turns off to irradiate the corresponding vehicle area by detecting the speed and the position of the vehicle on the road. The system solves the problems of dazzling of the high beam and poor visual field during dimming, but also has the problem of short service life of the lamp caused by frequent switching of the lamp, and the adjustment of the high beam by the position and speed of the vehicle is difficult to realize and is not economical.
Disclosure of Invention
The invention provides a control system and a control method for automatically adjusting the shielding of a windshield for a high beam in order to solve the problems.
The technical scheme adopted by the invention for solving the technical problems is as follows: a control system for automatically adjusting the shielding of a windshield from a high beam is constructed, comprising:
the system comprises an information acquisition device, an information analysis device and an adjusting and executing device;
the information acquisition device comprises a miniature camera, a radar ranging sensor, a 3D scanner and a human face 3D scanner, and is used for controlling the miniature camera to acquire the position coordinates of the eyes of a driver, the coordinate information of a vehicle facing the vehicle during meeting acquired by the radar ranging sensor and the vehicle positioning information of a GPS (global positioning system) positioner, scanning the 3D information of the complete image of the vehicle facing the vehicle by the 3D scanner, and performing 3D scanning on the human face of the driver by the human face 3D scanner to obtain a three-dimensional image so as to lock the positions of the eyes of the driver;
the information analysis device (b) comprises an image recognition unit, a 3D unit and an information processing unit, and is used for recognizing and analyzing the road surface condition information outside the vehicle, which is acquired by the miniature camera through the image recognition unit; the 3D unit is used for processing the 3D information of the complete images of the opposite vehicles scanned by the 3D scanner in real time, the processing information results of the image recognition unit and the 3D system are further integrated and analyzed through the information processing unit, and the color change adjusting scheme of the electrochromic windshield of the adjusting and executing system is determined.
The miniature camera is a high-definition camera, is arranged right in front of a driver seat of the automobile and is used for accurately acquiring the positions of the eyes of the driver; the radar ranging sensor is arranged on the electrochromic windshield; the method comprises the following steps that a 3D scanner selects a ground three-dimensional laser scanner, scans the surrounding space and the position of a vehicle in real time, transmits a 3D stereoscopic image to an information analysis device, and takes the position of a radar ranging sensor as the origin of a coordinate system of the 3D scanner; the human face 3D scanner and the miniature camera are installed at the same position.
Wherein the information analysis device is based on the spatial coordinate position (X) of the eye1,Y1)、(X2,Y2) And spatial coordinate position (X) relative to vehicle lights3,Y3) And analyzing, blocking according to the analyzed light beam path, sending an instruction for blocking the light rays which directly irradiate the eyes, and transmitting the instruction to the electrochromic windshield of the adjusting and executing system.
Wherein, the 3D unit is used for processing the 3D information scanned by the 3D scanner and the human face 3D scanner in real time, processing the information into a space coordinate system taking the 3D scanner as a coordinate zero point, and processing the space position (X) of the eyes scanned by the human face 3D scanner1,Y1)、(X2,Y2) And the spatial position (X) of the car lamp scanned by the 3D scanner3,Y3) And processing the automobile windshield of the automobile into a space coordinate system with the 3D scanner as a coordinate zero point.
Wherein the information processing unit determines the position of the path of the beam of direct eye on the electrochromic windscreen by further processing the information processed by the 3D unit (X)0,Y0) And sends a color change instruction to the position to the electrochromic windshield.
The information analysis device also comprises a grid conductor unit which is used for converting all the scanned space coordinates (X, Y, Z) of all the grids into the serial numbers of conductor contact points in each grid, setting the serial numbers of the conductor contact points corresponding to all the grid coordinates (X, Y, Z), and determining the serial numbers of the grid conductor contact points according to the grid coordinates (X, Y, Z).
The electrochromic windshield of the adjusting and executing system receives the instruction sent by the information analyzing device to adjust, the electrochromic windshield is discolored, direct light beams relative to a vehicle are blocked, and the direct light beams to eyes of a driver are avoided.
The electrochromic windshield is gridded through grid conductor units, an insulator is used for surrounding each grid to form a single grid with a non-flowing conducting medium, a conductor is arranged for each grid along the insulating line path of each grid, and the color and the transparency of the intermediate medium are changed by an external electric field or current, so that the color state of the glass is changed; the electrochromic windshield has 5 kinds of color changing degrees with different brightness according to the intensity of current, the distance between two vehicles is continuously reduced according to the meeting time, the current is from weak to strong, and the color of the glass is also changed from bright to dark in sequence.
In addition, the invention provides a control method for automatically adjusting the shielding of the windshield from the high beam, which carries out high beam shielding regulation and control through the control system for automatically adjusting the shielding of the windshield from the high beam according to the technical scheme, and comprises the following steps:
step 1>, a control switch of a control system for automatically adjusting the shielding of the windshield from the high beam is connected with a switch of the automobile high beam in series, and when a driver turns on the automobile high beam, an information acquisition device, an information analysis device and a switch of the electrochromic windshield are turned on;
step 2>, the information acquisition device scans and shoots the face of the driver of the vehicle in real time by using the miniature camera and the 3D face scanner, transmits the scanned and shot image information to the information analysis device, simultaneously scans the periphery of the vehicle in real time by using the radar ranging sensor, the 3D scanner and the 3D scanner, and transmits the scanned image information to the information analysis device;
step 3>, the information analysis device processes the information received from the information acquisition device through the image recognition device, further processes the scanned surrounding environment and the image of the automobile, screens out the surrounding environment, only leaves the image of the automobile, and transmits the processed image information to the 3D unit;
step 4>, the 3D unit establishes a three-dimensional space coordinate system for the 3D image, projects image information into the space coordinate system by taking the position of the 3D scanner as an original point coordinate of the space coordinate system, projects the face information of the driver scanned by the face 3D scanner into the space coordinate system by combining the space positions of the face 3D scanner and the 3D scanner, and establishes a complete real-time space coordinate model inside and outside the vehicle;
step 5>The information processing unit detects the coordinates (X) of two eyes of the driver according to the scanned face of the driver according to the complete in-vehicle and out-vehicle space coordinate model1,Y1)、(X2,Y2) Calculating the midpoint coordinates (X) of the eyes from the spatial coordinates of the two eyesIn,YIn) Simultaneously according to the scanned position (X) of the lamp of the opposite vehicle3,Y3) According to the midpoint of the eye (X)In,YIn) And position of vehicle lamp (X)3,Y3) Processing the linear function to calculate the path function of the beam(s) ((
Figure DEST_PATH_IMAGE001
) (ii) a The light beam must pass through a point on the electrochromic windshield in front of the eyes of the driver, and the space coordinate position (X) of the point is continuously calculated and processed according to a real-time space coordinate system0,Y0);
Step 6>Insulating wires around each grid of the electrochromic windshield scanned by the 3D scanner determine the space coordinates (X, Y, Z) of each grid; passing the four beams through the coordinates (X) of four points on the electrochromic windshielde0,Ye0,Ze0)、(Xf0,Yf0,Zf0)、(Xm0,Ym0,Zm0)、(Xn0,Yn0,Zn0) Determining a color change coordinate point; simulating a circle in an information processing unit by coordinates of four points, sorting all grid coordinates related to the circle, processing the serial numbers of corresponding conductor contact points according to the sorted grid coordinates and a grid conductor system, transmitting the processed conductor serial numbers to an electrochromic windshield, continuously processing the conductor serial numbers according to real-time information, and continuously transmitting the processed conductor serial numbers to the electrochromic windshield of an adjusting and executing device;
and 7> conducting the corresponding conductor serial numbers in real time by the electrochromic windshield of the adjusting and executing device according to the continuous real-time received conductor serial numbers, conducting the conducting media in the corresponding grids, then changing the colors, finally forming an circumcircle with the outline coordinates of the automobile as a boundary on the automobile cover, and continuously changing the position of the circle according to the position of the automobile, so that the direct light of the high beam of the automobile to the opposite automobile is blocked, and the direct light to the eyes of the automobile driver is avoided.
In addition, the invention provides a control method for automatically adjusting the shielding of the windshield from the high beam, which carries out high beam shielding regulation and control through the control system for automatically adjusting the shielding of the windshield from the high beam according to the technical scheme, and comprises the following steps:
step 1>, a control switch of a control system for automatically adjusting the shielding of the windshield from the high beam is connected with a switch of the automobile high beam in series, and when a driver turns on the automobile high beam, an information acquisition device, an information analysis device and a switch of the electrochromic windshield are turned on;
step 2>, the information acquisition device scans and shoots the face of the driver of the vehicle in real time by using the miniature camera and the 3D face scanner, transmits the scanned and shot image information to the information analysis device, simultaneously scans the periphery of the vehicle in real time by using the radar ranging sensor, the 3D scanner and the 3D scanner, and transmits the scanned image information to the information analysis device;
step 3>, the information analysis device processes the information received from the information acquisition device through the image recognition device, further processes the scanned surrounding environment and the image of the automobile, screens out the surrounding environment, only leaves the image of the automobile, and transmits the processed image information to the 3D unit;
step 4>, the 3D unit establishes a three-dimensional space coordinate system for the 3D image, projects image information into the space coordinate system by taking the position of the 3D scanner as an original point coordinate of the space coordinate system, projects the face information of the driver scanned by the face 3D scanner into the space coordinate system by combining the space positions of the face 3D scanner and the 3D scanner, and establishes a complete real-time space coordinate model inside and outside the vehicle;
step 5>The information processing unit selects driving according to the complete in-vehicle and out-vehicle space coordinate modelTwo eye coordinates (X) of the person1,Y1)、(X2,Y2) Position of lamp of vehicle (X)3,Y3) And width L of the lamp for the vehicle according to the left eye coordinate (X)1,Y1) And position of vehicle lamp (X)3,Y3) Processing the linear function to calculate the path function (y) of the light beamA left side= kx + b), from the eye right coordinate (X)2,Y2) And position of vehicle lamp (X)3,Y3) Processing the linear function to calculate the path function (y) of the light beam'Jiu' right side= kx + b), the two beams must pass through two points on the electrochromic windshield in front of the eyes of the driver, and the space coordinate positions (X) of the two points are continuously calculated and processed according to a real-time space coordinate systemLeft side of,YLeft side of)、(XRight side,YRight side);
Step 6>Insulating wires around each grid of the electrochromic windshield scanned by the 3D scanner determine the space coordinates (X, Y) of each grid; two functions are passed through the coordinates (X) of two points on the electrochromic windscreenLeft side of,YLeft side of)、(XRight side,YRight side) And determining the color change coordinate point. Respectively taking two color-changing coordinate points as circle centers and the width L of a car lamp of the car as a diameter to make two circles, sorting all grid coordinates related to the circles, processing the serial numbers of corresponding conductor contact points according to the sorted grid coordinates and grid conductor units, and transmitting the processed conductor serial numbers to an adjusting and executing device; continuously processing according to the real-time information, and continuously transmitting the processed conductor serial number to an electrochromic windshield of an adjusting and executing system;
step 7>Conducting the corresponding conductor serial number on the electrochromic windshield in real time according to the continuous real-time received conductor serial number transmitted by the information analysis device, conducting the conducting medium in the corresponding grid, then changing color, and finally respectively forming a left coordinate (X) on the electrochromic windshieldLeft side of,YLeft side of) A color-changing circle with the width of the vehicle lamp as the diameter and a right coordinate (X) as the center of the circleRight side,YRight side) The circle center is a color-changing circle with the width of the car lamp as the diameter, so that the direct light irradiation of the car high beam to the eyes of the driver can be prevented.
Different from the prior art, the control system and the method for automatically adjusting the shielding of the windshield by the high beam lamp solve the problem of safe driving during meeting at night by utilizing the technologies of electrochromic glass, image recognition, a radar ranging sensor, a 3D scanner and the like. The invention reduces the light intensity of the light beam of the high beam which directly irradiates the eyes through the darkening of the windshield area module, thereby solving the safety problem of meeting. The system consists of an information acquisition system, an information analysis system and an adjustment execution system. The information acquisition system consists of a miniature camera, a radar ranging sensor, a human face 3D scanner and a 3D scanner and is responsible for acquiring position information inside and outside the vehicle in real time; the information analysis system is responsible for receiving information, identifying images and sending instructions to the adjustment execution system; the adjusting and executing system is composed of electrochromic glass system components and mainly receives an instruction issued by the information analyzing system, and the appointed grids are changed in color by the electrochromic glass system to weaken the intensity of light beams, avoid the situation that strong light beams directly irradiate eyes and ensure the safe driving of the vehicle.
Drawings
The invention will be further described with reference to the accompanying drawings and examples, in which:
fig. 1 is a schematic structural diagram of a control system for automatically adjusting a windshield to shield a high beam provided by the invention.
Fig. 2 is a schematic structural configuration diagram of a control system for automatically adjusting a windshield to shield a high beam provided by the invention.
Fig. 3 is a schematic diagram of a first embodiment of a control method for automatically adjusting a windshield to block a high beam according to the present invention.
Fig. 4 is a schematic diagram of a second embodiment of the control method for automatically adjusting the shielding of the windshield from the high beam provided by the invention.
Fig. 5 is a logic diagram of a first embodiment of a control method for automatically adjusting a high beam shielded by a windshield according to the present invention.
Fig. 6 is a logic diagram of a second embodiment of the control method for automatically adjusting the shielding of the windshield from the high beam provided by the invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described are only for illustrating the present invention and are not to be construed as limiting the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, the present invention provides a control system for automatically adjusting the shielding of a windshield from a high beam, which is structurally configured as shown in fig. 2, and comprises:
the system comprises an information acquisition device a, an information analysis device b and an adjusting and executing device c;
the information acquisition device a comprises a miniature camera 1, a radar ranging sensor 2, a 3D scanner 3 and a human face 3D scanner 4, and is used for controlling the miniature camera 1 to acquire the position coordinates of the eyes of a driver, the coordinate information of opposite vehicles during meeting acquired by the radar ranging sensor 2 and the vehicle positioning information of a GPS (global positioning system) positioner, scanning the 3D information of complete images of the opposite vehicles by the 3D scanner 3, and performing 3D scanning on the human face of the driver by the human face 3D scanner 4 to obtain a three-dimensional graph so as to lock the positions of the eyes of the driver;
the information analysis device b comprises an image recognition unit 5, a 3D unit 6 and an information processing unit 7, and is used for recognizing and analyzing the road surface condition information outside the vehicle, which is acquired by the miniature camera 1, through the image recognition unit 5; the 3D unit 6 is used for processing the complete image 3D information of the opposite vehicle scanned by the 3D scanner 3 in real time, the processing information results of the image recognition unit 5 and the 3D system 6 are further integrated and analyzed by the information processing unit 7, and the color change adjusting scheme of the electrochromic windshield 9 of the adjusting execution system (c) is determined.
The miniature camera 1 is a high-definition camera, is arranged right in front of a driver seat of the automobile and is used for accurately acquiring the positions of the eyes of the driver; the radar ranging sensor 2 is arranged on the electrochromic windshield 9; the 3D scanner 3 selects a ground three-dimensional laser scanner, scans the surrounding space and the position of the vehicle in real time, transmits the 3D stereoscopic image to the information analysis device b, and takes the position of the radar ranging sensor 2 as the origin of a coordinate system of the 3D scanner 3; the human face 3D scanner 4 and the miniature camera 1 are installed at the same position.
Wherein the information analysis device b is based on the spatial coordinate position (X) of the eye1,Y1)、(X2,Y2) And spatial coordinate position (X) relative to vehicle lights3,Y3) And (4) carrying out analysis processing, blocking according to the analyzed light beam route, sending an instruction for blocking the light rays which directly irradiate the eyes, and transmitting the instruction to the electrochromic windshield 9 of the adjusting and executing system c.
Wherein, the 3D unit 6 is used for processing the 3D information scanned by the 3D scanner 1 and the face 3D scanner 4 in real time, processing the information into a space coordinate system with the 3D scanner 3 as a coordinate zero point, and processing the space position (X) of the eyes scanned by the face 3D scanner 41,Y1)、(X2,Y2) And the spatial position (X) of the car lamp scanned by the 3D scanner3,Y3) And processing the automobile windshield of the automobile into a space coordinate system with the 3D scanner 3 as a coordinate zero point.
Wherein the information processing unit 7 determines the position of the path of the light beam directed to the eyes (X) on the electrochromic windscreen 9 by further processing the information processed by the 3D unit 60,Y0) And issues a color change instruction to the position to the electrochromic windshield 9.
The information analysis device b further includes a grid conductor unit 8, which is used to convert all the scanned space coordinates (X, Y, Z) of all the grids into the serial numbers of the conductor contact points in each grid, set the serial numbers of the conductor contact points corresponding to all the grid coordinates (X, Y, Z), and determine the serial numbers of the grid conductor contact points according to the grid coordinates (X, Y, Z).
The electrochromic windshield 9 of the adjusting and executing system c receives the instruction sent by the information analysis device b to adjust, so that the electrochromic windshield 9 changes color, the direct light beam relative to the vehicle is blocked, and the direct light beam to the eyes of a driver is avoided.
The electrochromic windshield 9 is gridded by a grid conductor unit 8, an insulator is used for surrounding each grid to form an independent grid with a non-flowing conductive medium, a conductor is arranged for each grid along the insulated wire path of the grid, and the color and the transparency of the intermediate medium are changed by an external electric field or current, so that the color state of the glass is changed; the electrochromic windshield 9 has 5 kinds of color-changing degrees with different brightness according to the intensity of current, the distance between two vehicles is continuously reduced according to meeting, the current is from weak to strong, and the color of the glass is also changed from bright to dark in sequence.
As shown in fig. 3 and 5, the present invention provides a control method for automatically adjusting a windshield to shield a high beam, which performs high beam shielding control by using the control system for automatically adjusting the windshield to shield a high beam according to the above technical solution, and comprises the steps of:
step 1>, a control switch of a control system for automatically adjusting the shielding of the windshield from the high beam is connected with a switch of the automobile high beam in series, and when a driver turns on the automobile high beam, switches of an information acquisition device a, an information analysis device b and an electrochromic windshield 9 are turned on;
step 2>, the information acquisition device a scans and shoots the face of the driver of the vehicle in real time by using the miniature camera and the 3D face scanner, transmits the scanned and shot image information to the information analysis device b, simultaneously scans the periphery of the vehicle in real time by using the radar ranging sensor 2, the 3D scanner 3 and the 3D scanner 4, and transmits the scanned image information to the information analysis device b;
step 3>, the information analysis device b processes the information received from the information acquisition device a through the image recognition device 4, further processes the scanned surrounding environment and the image of the automobile, screens out the surrounding environment, only leaves the image of the automobile, and transmits the processed image information to the 3D unit 6;
step 4>, the 3D unit 6 establishes a three-dimensional space coordinate system for the 3D image, the position of the 3D scanner 3 is used as the origin coordinate of the space coordinate system, the image information is projected into the space coordinate system, the face information of the driver scanned by the face 3D scanner is projected into the space coordinate system by combining the space positions of the face 3D scanner 4 and the 3D scanner 3, and a complete real-time space coordinate model inside and outside the vehicle is established;
step 5>The information processing unit 6 detects the coordinates (X) of the two eyes of the driver according to the scanned face of the driver according to the complete in-vehicle and out-vehicle space coordinate model1,Y1)、(X2,Y2) Calculating the midpoint coordinates (X) of the eyes from the spatial coordinates of the two eyesIn,YIn) Simultaneously according to the scanned position (X) of the lamp of the opposite vehicle3,Y3) According to the midpoint of the eye (X)In,YIn) And position of vehicle lamp (X)3,Y3) Processing the linear function to calculate the path function of the beam(s) ((
Figure 483868DEST_PATH_IMAGE001
) (ii) a The light beam must pass through a point on the electrochromic windshield in front of the eyes of the driver, and the space coordinate position (X) of the point is continuously calculated and processed according to a real-time space coordinate system0,Y0);
Step 6>Insulating lines around each grid of the electrochromic windshield 8 scanned by the 3D scanner 3 determine the space coordinates (X, Y, Z) of each grid; passing the four light beams through the coordinates (X) of four points on the electrochromic windscreen 8e0,Ye0,Ze0)、(Xf0,Yf0,Zf0)、(Xm0,Ym0,Zm0)、(Xn0,Yn0,Zn0) Determining a color change coordinate point; simulating four-point coordinates into a circle in the information processing unit 6, sorting all grid coordinates related to the circle, and processing the serial numbers of corresponding conductor contact points according to the sorted grid coordinates and the grid conductor systemThe processed conductor serial number is transmitted to the electrochromic windshield 9, the processing is continuously carried out according to the real-time information, and the processed conductor serial number is continuously transmitted to the electrochromic windshield 9 of the adjusting and executing device c;
and 7> the electrochromic windshield 9 of the adjusting and executing device c conducts electricity to the corresponding conductor serial numbers in real time according to the continuous real-time received conductor serial numbers, the conducting media in the corresponding grids change color after conducting electricity, and finally an circumcircle with the outline coordinates of the automobile as a boundary is formed on the automobile cover, and the position of the circle is continuously changed according to the position of the automobile, so that the direct irradiation of the high beam of the automobile to the opposite automobile is blocked, and the direct irradiation of the light to the eyes of the automobile driver is avoided.
As shown in fig. 4 and 6, the present invention provides a control method for automatically adjusting a windshield to shield a high beam, which performs high beam shielding control by using the control system for automatically adjusting the windshield to shield a high beam according to the above technical solution, and comprises the steps of:
step 1>, a control switch of a control system for automatically adjusting the shielding of the windshield from the high beam is connected with a switch of the automobile high beam in series, and when a driver turns on the automobile high beam, switches of an information acquisition device a, an information analysis device b and an electrochromic windshield 9 are turned on;
step 2>, the information acquisition device a scans and shoots the face of the driver of the vehicle in real time by using the miniature camera and the 3D face scanner, transmits the scanned and shot image information to the information analysis device b, simultaneously scans the periphery of the vehicle in real time by using the radar ranging sensor 2, the 3D scanner 3 and the 3D scanner 4, and transmits the scanned image information to the information analysis device b;
step 3>, the information analysis device b processes the information received from the information acquisition device a through the image recognition device 4, further processes the scanned surrounding environment and the image of the automobile, screens out the surrounding environment, only leaves the image of the automobile, and transmits the processed image information to the 3D unit 6;
step 4>, the 3D unit 6 establishes a three-dimensional space coordinate system for the 3D image, the position of the 3D scanner 3 is used as the origin coordinate of the space coordinate system, the image information is projected into the space coordinate system, the face information of the driver scanned by the face 3D scanner is projected into the space coordinate system by combining the space positions of the face 3D scanner 4 and the 3D scanner 3, and a complete real-time space coordinate model inside and outside the vehicle is established;
step 5>The information processing unit 7 selects two eye coordinates (X) of the driver according to the complete in-vehicle and out-vehicle space coordinate model1,Y1)、(X2,Y2) Position of lamp of vehicle (X)3,Y3) And width L of the lamp for the vehicle according to the left eye coordinate (X)1,Y1) And position of vehicle lamp (X)3,Y3) Processing the linear function to calculate the path function (y) of the light beamA left side= kx + b), from the eye right coordinate (X)2,Y2) And position of vehicle lamp (X)3,Y3) Processing the linear function to calculate the path function (y) of the light beam'Jiu' right side= kx + b), the two beams must pass through two points on the electrochromic windshield in front of the eyes of the driver, and the space coordinate positions (X) of the two points are continuously calculated and processed according to a real-time space coordinate systemLeft side of,YLeft side of)、(XRight side,YRight side);
Step 6>Insulating lines around each grid of the electrochromic windshield 9 scanned by the 3D scanner 3 determine the space coordinates (X, Y) of each grid; two functions are passed through the coordinates (X) of two points on the electrochromic windscreenLeft side of,YLeft side of)、(XRight side,YRight side) And determining the color change coordinate point. Respectively taking two color-changing coordinate points as circle centers and the width L of a car lamp of the car as a diameter to make two circles, sorting all grid coordinates related to the circles, processing the serial numbers of corresponding conductor contact points according to the sorted grid coordinates and the grid conductor units 8, and transmitting the processed conductor serial numbers to an adjusting and executing device c; continuously processing according to the real-time information, and continuously transmitting the processed conductor serial number to the electrochromic gear of the regulation execution system cA windshield 9;
step 7>Conducting the corresponding conductor serial number on the electrochromic windshield 9 in real time according to the continuous real-time received conductor serial number transmitted by the information analysis device b, conducting the conducting medium in the corresponding grid, then changing color, and finally forming a left coordinate (X) on the electrochromic windshield 9 respectivelyLeft side of,YLeft side of) A color-changing circle with the width of the vehicle lamp as the diameter and a right coordinate (X) as the center of the circleRight side,YRight side) The circle center is a color-changing circle with the width of the car lamp as the diameter, so that the direct light irradiation of the car high beam to the eyes of the driver can be prevented.
While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined in the appended claims.

Claims (10)

1. A control system for automatically adjusting a windshield to shield a high beam is characterized by comprising an information acquisition device (a), an information analysis device (b) and an adjusting execution device (c);
the information acquisition device (a) comprises a micro camera (1), a radar ranging sensor (2), a 3D scanner (3) and a human face 3D scanner (4), and is used for controlling the micro camera (1) to acquire the position coordinates of the eyes of a driver, the coordinate information of the opposite vehicle during vehicle crossing and the GPS locator positioning vehicle information, which are acquired by the radar ranging sensor (2), scanning the 3D information of the complete image of the opposite vehicle through the 3D scanner (3), and performing 3D scanning on the human face of the driver through the human face 3D scanner (4) to obtain a three-dimensional image so as to lock the positions of the eyes of the driver;
the information analysis device (b) comprises an image recognition unit (5), a 3D unit (6) and an information processing unit (7), and is used for recognizing and analyzing the road surface condition information outside the vehicle, which is collected by the miniature camera (1), through the image recognition unit (5); the 3D unit (6) is used for processing the complete image 3D information of the opposite vehicle scanned by the 3D scanner (3) in real time, the processed information results of the image recognition unit (5) and the 3D system (6) are further integrated and analyzed by the information processing unit (7), and the color change adjusting scheme of the electrochromic windshield (9) of the adjusting and executing system (c) is determined.
2. The control system for automatically adjusting the shielding of a windshield from a high beam according to claim 1, wherein: the miniature camera (1) is a high-definition camera, is arranged right in front of a driver seat of the automobile and is used for accurately acquiring the positions of the eyes of the driver; the radar ranging sensor (2) is arranged on the electrochromic windshield (9); the method comprises the following steps that a 3D scanner (3) selects a ground three-dimensional laser scanner, scans the surrounding space and the position of a vehicle in real time, transmits a 3D stereoscopic image to an information analysis device (b), and takes the position of a radar ranging sensor (2) as the origin of a coordinate system of the 3D scanner (3); the human face 3D scanner (4) and the miniature camera (1) are installed at the same position.
3. The control system for automatically adjusting the shielding of a windshield from a high beam according to claim 1, wherein: the information analysis device (b) analyzes the spatial coordinate position (X) of the eye1,Y1)、(X2,Y2) And spatial coordinate position (X) relative to vehicle lights3,Y3) And (3) carrying out analysis processing, blocking according to the analyzed light beam path, sending an instruction for blocking the light rays which directly irradiate the eyes, and transmitting the instruction to an electrochromic windshield (9) of the adjusting and executing system (c).
4. The control system for automatically adjusting the shielding of a windshield from a high beam according to claim 1, wherein: the 3D unit (6) is used for processing the 3D information scanned by the 3D scanner (1) and the human face 3D scanner (4) in real time and processing the 3D information into a space with the 3D scanner (3) as a coordinate zero pointCoordinate system and spatial position (X) of the eyes scanned by the face 3D scanner (4)1,Y1)、(X2,Y2) And the spatial position (X) of the car lamp scanned by the 3D scanner3,Y3) And the automobile windshield of the automobile is also processed into a space coordinate system with the 3D scanner (3) as a coordinate zero point.
5. The control system for automatically adjusting the shielding of a windshield from a high beam according to claim 4, wherein: the information processing unit (7) determines the path position (X) of the beam of light directed towards the eyes on the electrochromic windscreen (9) by further processing the information processed by the 3D unit (6)0,Y0) And sends a color change instruction to the position to the electrochromic windshield (9).
6. The control system for automatically adjusting the shielding of a windshield from a high beam according to claim 1, wherein: the information analysis device (b) further comprises a grid conductor unit (8) for converting the space coordinates (X, Y, Z) of all the scanned grids into the serial numbers of the conductor contact points in each grid, setting the serial numbers of the conductor contact points corresponding to all the grid coordinates (X, Y, Z), and determining the serial numbers of the grid conductor contact points according to the grid coordinates (X, Y, Z).
7. The control system for automatically adjusting the shielding of a windshield from a high beam according to claim 1, wherein: and the electrochromic windshield (9) of the adjusting and executing system (c) receives the instruction sent by the information analysis device (b) to adjust, so that the electrochromic windshield (9) changes color, the direct light beam relative to the vehicle is blocked, and the direct light beam to the eyes of a driver is avoided.
8. The control system for automatically adjusting the shielding of a windshield from a high beam according to claim 6, wherein: the electrochromic windshield (9) is gridded through a grid conductor unit (8), an independent grid with a non-flowing conducting medium is surrounded by an insulator around each grid, a conductor is arranged for each grid along the insulated wire path of the grid, and the color and the transparency of the intermediate medium are changed by an external electric field or current, so that the color state of the glass is changed; the electrochromic windshield (9) has 5 kinds of color changing degrees with different brightness according to the intensity of current, the distance between two vehicles is continuously reduced according to meeting, the current is from weak to strong, and the color of the glass is also changed from bright to dark in sequence.
9. A control method for automatically adjusting the shielding of a windshield from a high beam, which performs high beam shielding control by the control system for automatically adjusting the shielding of a windshield from a high beam according to any one of claims 1 to 8, characterized in that: the method comprises the following steps:
step 1>, a control switch of a control system for automatically adjusting the shielding of the windshield from the high beam is connected with a switch of the automobile high beam in series, and when a driver turns on the automobile high beam, switches of an information acquisition device (a), an information analysis device (b) and an electrochromic windshield (9) are turned on;
step 2>, the information acquisition device (a) utilizes a micro camera and a 3D face scanner to scan and shoot the face of the driver of the vehicle in real time, transmits the scanned and shot image information to the information analysis device (b), simultaneously utilizes a radar ranging sensor (2), the 3D scanner (3) and the 3D scanner (4) to scan the periphery of the vehicle in real time, and transmits the scanned image information to the information analysis device (b);
step 3>, the information analysis device (b) processes the information received from the information acquisition device (a) through the image recognition device (4), further processes the scanned surrounding environment and the image of the automobile, screens out the surrounding environment, only leaves the image of the automobile, and transmits the processed image information to the 3D unit (6);
step 4>, the 3D unit (6) establishes a three-dimensional space coordinate system for the 3D image, the position of the 3D scanner (3) is used as the origin coordinate of the space coordinate system, image information is thrown into the space coordinate system, the face information of the driver scanned by the face 3D scanner is thrown into the space coordinate system by combining the space positions of the face 3D scanner (4) and the 3D scanner (3), and a complete real-time space coordinate model inside and outside the vehicle is established;
step 5>The information processing unit (6) detects the coordinates (X) of the two eyes of the driver according to the scanned face of the driver according to the complete in-vehicle and out-vehicle space coordinate model1,Y1)、(X2,Y2) Calculating the midpoint coordinates (X) of the eyes from the spatial coordinates of the two eyesIn,YIn) Simultaneously according to the scanned position (X) of the lamp of the opposite vehicle3,Y3) According to the midpoint of the eye (X)In,YIn) And position of vehicle lamp (X)3,Y3) Processing the linear function to calculate the path function of the beam(s) ((
Figure 62047DEST_PATH_IMAGE001
) (ii) a The light beam must pass through a point on the electrochromic windshield in front of the eyes of the driver, and the space coordinate position (X) of the point is continuously calculated and processed according to a real-time space coordinate system0,Y0);
Step 6>Insulating wires around each grid of the electrochromic windshield (9) scanned by the 3D scanner (3) determine the space coordinates (X, Y, Z) of each grid; passing the four light beams through the coordinates (X) of four points on the electrochromic windscreen (9)e0,Ye0,Ze0)、(Xf0,Yf0,Zf0)、(Xm0,Ym0,Zm0)、(Xn0,Yn0,Zn0) Determining a color change coordinate point; simulating the coordinates of four points into a circle in an information processing unit (6), sorting all grid coordinates related to the circle, processing the serial numbers of corresponding conductor contact points according to the sorted grid coordinates and a grid conductor system, transmitting the processed conductor serial numbers to an electrochromic windshield (9), continuously processing the serial numbers according to real-time information, and continuously transmitting the processed conductor serial numbers to an adjusting and executing device (c)An electrochromic windshield (9);
and 7> conducting the corresponding conductor serial numbers in real time according to the continuous real-time received conductor serial numbers by the electrochromic windshield (9) of the adjusting and executing device (c), changing the colors of the conducting media in the corresponding grids after conducting, finally forming an circumscribed circle with the outline coordinates of the automobile as a boundary on the automobile cover, and blocking the direct light of the high beam of the automobile to the opposite automobile according to the continuous change of the position of the automobile, so as to avoid the direct light to the eyes of the driver of the automobile.
10. A control method for automatically adjusting a windshield to shield a high beam, which performs high beam shielding control by the control system for automatically adjusting the windshield to shield a high beam according to any one of claims 1 to 8, comprising:
step 1>, a control switch of a control system for automatically adjusting the shielding of the windshield from the high beam is connected with a switch of the automobile high beam in series, and when a driver turns on the automobile high beam, switches of an information acquisition device (a), an information analysis device (b) and an electrochromic windshield (9) are turned on;
step 2>, the information acquisition device (a) utilizes a micro camera and a 3D face scanner to scan and shoot the face of the driver of the vehicle in real time, transmits the scanned and shot image information to the information analysis device (b), simultaneously utilizes a radar ranging sensor (2), the 3D scanner (3) and the 3D scanner (4) to scan the periphery of the vehicle in real time, and transmits the scanned image information to the information analysis device (b);
step 3>, the information analysis device (b) processes the information received from the information acquisition device (a) through the image recognition device (4), further processes the scanned surrounding environment and the image of the automobile, screens out the surrounding environment, only leaves the image of the automobile, and transmits the processed image information to the 3D unit (6);
step 4>, the 3D unit (6) establishes a three-dimensional space coordinate system for the 3D image, the position of the 3D scanner (3) is used as the origin coordinate of the space coordinate system, image information is thrown into the space coordinate system, the face information of the driver scanned by the face 3D scanner is thrown into the space coordinate system by combining the space positions of the face 3D scanner (4) and the 3D scanner (3), and a complete real-time space coordinate model inside and outside the vehicle is established;
step 5>The information processing unit (7) selects two eye coordinates (X) of the driver according to the complete in-vehicle and out-vehicle space coordinate model1,Y1)、(X2,Y2) Position of lamp of vehicle (X)3,Y3) And width L of the lamp for the vehicle according to the left eye coordinate (X)1,Y1) And position of vehicle lamp (X)3,Y3) Processing the linear function to calculate the path function (y) of the light beamA left side= kx + b), from the eye right coordinate (X)2,Y2) And position of vehicle lamp (X)3,Y3) Processing the linear function to calculate the path function (y) of the light beam'Jiu' right side= kx + b), the two beams must pass through two points on the electrochromic windshield in front of the eyes of the driver, and the space coordinate positions (X) of the two points are continuously calculated and processed according to a real-time space coordinate systemLeft side of,YLeft side of)、(XRight side,YRight side);
Step 6>Insulating wires around each grid of the electrochromic windshield (9) scanned by the 3D scanner (3) determine the space coordinates (X, Y) of each grid; two functions are passed through the coordinates (X) of two points on the electrochromic windscreenLeft side of,YLeft side of)、(XRight side,YRight side) Determining a color change coordinate point;
respectively taking the two color-changing coordinate points as circle centers and the width L of the car lamp of the car as a diameter to make two circles, sorting all grid coordinates related to the circles, processing the serial numbers of corresponding conductor contact points according to the sorted grid coordinates and the grid conductor units (8), and transmitting the processed conductor serial numbers to an adjusting and executing device (c); continuously processing according to the real-time information, and continuously transmitting the processed conductor serial number to an electrochromic windshield (9) of an adjusting and executing system (c);
step 7>Conducting electricity on the corresponding conductor serial number in real time on the electrochromic windshield (9) according to the continuous real-time received conductor serial number transmitted by the information analysis device (b), conducting electricity on the conducting medium in the corresponding grid, then changing color, and finally forming a left coordinate (X) on the electrochromic windshield (9) respectivelyLeft side of,YLeft side of) A color-changing circle with the width of the vehicle lamp as the diameter and a right coordinate (X) as the center of the circleRight side,YRight side) The circle center is a color-changing circle with the width of the car lamp as the diameter, so that the direct light irradiation of the car high beam to the eyes of the driver can be prevented.
CN202110512568.1A 2021-05-11 2021-05-11 Control system and method for automatically adjusting shielding of windshield for high beam Pending CN113212125A (en)

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CN106985640A (en) * 2017-04-26 2017-07-28 上海小糸车灯有限公司 Actively anti-glare method and automobile active anti-dazzle device
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996024881A1 (en) * 1995-02-07 1996-08-15 Schwarz Albert C Jr Eye-shading apparatus for a vehicle window
CN102241235A (en) * 2010-05-11 2011-11-16 财团法人工业技术研究院 Backlight shading device
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