CN114604167A - Traffic safety-oriented low-light environment vehicle lamp projection system - Google Patents
Traffic safety-oriented low-light environment vehicle lamp projection system Download PDFInfo
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
- B60Q1/26—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic
- B60Q1/50—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating other intentions or conditions, e.g. request for waiting or overtaking
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
- B60Q1/02—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments
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Abstract
本发明涉及一种面向交通安全的低照度环境车灯投射系统，包括投影预设图案的车灯投影装置，用于接受前车的方位信息和自身车轮偏移角度的位移传感器，用于识别与前车或者障碍物距离的距离传感器，用于检测自身以及前车的行驶速度的速度检测器，用于检测车头前方物体和车辆前方坡度的识别的摄像头，用于处理位移传感器、距离传感器、速度检测器收集的综合信息的中央控制器；将所述处理位移传感器、距离传感器和速度检测器收集的综合信息传递给中央处理器，所述中央处理器根据预设程序控制车灯投影装置规划场景投射到车上前方的路面。本发明改善了车灯单纯的照明功能，大大提高了暗环境下驾驶的安全性。
The invention relates to a low-illumination environment vehicle lamp projection system oriented to traffic safety, comprising a lamp projection device for projecting a preset pattern, a displacement sensor for receiving the orientation information of the preceding vehicle and the offset angle of its own wheels, and used for identifying and A distance sensor for the distance of the preceding vehicle or obstacle, a speed detector for detecting the driving speed of itself and the preceding vehicle, a camera for detecting the object in front of the vehicle and the recognition of the slope in front of the vehicle, for processing displacement sensors, distance sensors, speed The central controller of the comprehensive information collected by the detector; the comprehensive information collected by the processing displacement sensor, the distance sensor and the speed detector is transmitted to the central processing unit, and the central processing unit controls the lamp projection device to plan the scene according to the preset program Projected onto the road in front of the car. The invention improves the simple lighting function of the vehicle lamp, and greatly improves the driving safety in the dark environment.
Description
技术领域technical field
本发明涉及交通安全与汽车车灯领域，更具体地说，涉及一种面向交通安全的低照度环境车灯投射系统。The present invention relates to the field of traffic safety and automobile lamps, and more particularly, to a low-illumination environment vehicle lamp projection system oriented to traffic safety.
背景技术Background technique
随着社会生产水平的不断发展和经济水平的日益提高，汽车已经成为人民日常生活中不可缺少的出行工具，给人们的出行提供了巨大的方便。但与此同时，车辆安全也成为时下关注的热点。传统的汽车车灯仅仅提供照明的功能以增加暗环境下的视距视区，而很难给驾驶员提供辅助驾驶的帮助。与此同时，车灯投影的技术正在蓬勃发展，目前在汽车车灯的技术领域，车灯可以实现将车辆状态以及特定内容投影在地面上，但目前的投影基本上是为了美观作用，而不是为了改善交通安全。特别是在一些特殊场景下，发生交通事故的可能性很高。With the continuous development of social production level and the increasing economic level, automobiles have become an indispensable travel tool in people's daily life, providing great convenience for people's travel. But at the same time, vehicle safety has also become a hot spot of concern nowadays. The traditional car lights only provide the function of lighting to increase the viewing distance in the dark environment, but it is difficult to provide the driver with assistance in driving. At the same time, the technology of car lamp projection is booming. At present, in the technical field of car lights, car lights can project the vehicle status and specific content on the ground, but the current projection is basically for aesthetic purposes, not for To improve traffic safety. Especially in some special scenarios, the possibility of a traffic accident is very high.
发明内容SUMMARY OF THE INVENTION
本发明要解决的技术问题在于，提供一种暗环境下改善行车安全的车灯投影系统，其系统能够改善车灯单纯的照明功能，大大提高了暗环境下驾驶的安全性。The technical problem to be solved by the present invention is to provide a lamp projection system for improving driving safety in a dark environment.
本发明解决其技术问题所采用的技术方案是：构造一种面向交通安全的低照度环境车灯投射系统，包括投影预设图案的车灯投影装置，用于接受前车的方位信息和自身车轮偏移角度的位移传感器，用于识别与前车或者障碍物距离的距离传感器，用于检测自身以及前车的行驶速度的速度检测器，用于检测车头前方物体和车辆前方坡度的识别的摄像头，用于处理位移传感器、距离传感器、速度检测器收集的综合信息的中央控制器；The technical solution adopted by the present invention to solve the technical problem is: constructing a low-illumination environment vehicle lamp projection system oriented to traffic safety, including a lamp projection device for projecting a preset pattern, which is used for receiving the orientation information of the preceding vehicle and its own wheels. Displacement sensor for offset angle, distance sensor for identifying the distance to the vehicle in front or obstacle, speed detector for detecting the driving speed of oneself and the vehicle in front, camera for detecting the object in front of the front of the vehicle and the recognition of the slope in front of the vehicle , a central controller for processing comprehensive information collected by displacement sensors, distance sensors, and speed detectors;
所述车灯投影装置包括前方投影装置、侧方投影装置、后方投影装置，所述前方投影装置设置于车辆前方大灯处，所述侧方投影装置设置于b柱上，所述后方投影装置设置于车辆后方尾灯处；The vehicle lamp projection device includes a front projection device, a side projection device and a rear projection device, the front projection device is arranged at the front headlight of the vehicle, the side projection device is arranged on the b-pillar, and the rear projection device Set at the rear taillights of the vehicle;
所述位移传感器设置于车辆的车头正前方以及车轮上方，所述距离传感器设置于车辆的车头正前方进气格栅处，所述速度检测器设置于车辆的车头正前方进气格栅处，所述摄像头设置于车辆的车头正前方进气格栅处，所述中央控制器位于车辆的车载电脑处；The displacement sensor is arranged directly in front of the front of the vehicle and above the wheels, the distance sensor is arranged at the air intake grille directly in front of the front of the vehicle, and the speed detector is arranged at the air intake grille directly in front of the front of the vehicle, The camera is arranged at the air intake grille directly in front of the front of the vehicle, and the central controller is located at the on-board computer of the vehicle;
将所述处理位移传感器、距离传感器和速度检测器收集的综合信息传递给中央处理器，所述中央处理器根据预设程序控制车灯投影装置规划场景投射到车上前方的路面；The integrated information collected by the processing displacement sensor, the distance sensor and the speed detector is transmitted to the central processing unit, and the central processing unit controls the lamp projection device to project the planning scene onto the road ahead of the vehicle according to the preset program;
所述场景包括：跟车行驶场景、转弯行驶场景、停车下车场景、车辆故障场景、上下坡场景和进入窄路场景。The scenarios include: following car driving scenarios, turning driving scenarios, parking and alighting scenarios, vehicle failure scenarios, uphill and downhill scenarios, and narrow road entry scenarios.
按上述方案，所述综合信息还包括车辆的驾驶室开关、左后车门的开关、副驾驶室开关、右后车门的开关、车辆故障按钮耦合和车辆转向灯耦合。According to the above solution, the comprehensive information also includes vehicle cab switch, left rear door switch, passenger cab switch, right rear door switch, vehicle fault button coupling and vehicle turn signal coupling.
按上述方案，所述车灯投影装置投影的图案高宽比为2.5：1。According to the above solution, the aspect ratio of the pattern projected by the vehicle lamp projection device is 2.5:1.
按上述方案，所述跟车行驶场景具体为：所述中央控制器以车辆的行驶速度和与前车的车头间距为基础，在车辆前方从车辆近处到远处投影出绿色的简单视距识别线、蓝色的停车视距线、黄色的建议跟车视距线和红色的停车线，所述中央控制器根据速度不同投射不同的长度，并在与前车小于停车线距离时以5hz的频率闪烁。According to the above solution, the following car driving scenario is specifically: the central controller projects a simple green line of sight in front of the vehicle from the near to the far distance of the vehicle on the basis of the speed of the vehicle and the distance between the vehicle and the front of the vehicle. Identification line, blue parking sight line, yellow suggested following sight line and red parking line, the central controller projects different lengths according to different speeds, and when the distance to the preceding vehicle is less than the parking line frequency flashes.
按上述方案，所述转弯行驶场景具体为：车辆的前车灯自动向转弯方向偏移，并投射出车辆的转弯行驶轨迹，车辆的后车灯投影出地面警示标识，所述警示标识满足图案高宽比为2.5：1的条件。According to the above solution, the turning driving scene is specifically as follows: the headlights of the vehicle are automatically shifted in the turning direction, and the turning trajectory of the vehicle is projected, and the rear lights of the vehicle project a ground warning sign, and the warning sign satisfies the pattern 2.5:1 aspect ratio condition.
按上述方案，所述停车下车场景具体为：车辆的驾驶室车门或左后车门打开时，在车辆左后方投影出警示标志，车辆的副驾驶门或左后车门打开时，在车辆左后方投影出警示标志，所述警示标志满足图案高宽比为2.5：1的条件。According to the above solution, the parking and alighting scene is specifically: when the cab door or the left rear door of the vehicle is opened, a warning sign is projected on the left rear of the vehicle; A warning sign is projected, and the warning sign satisfies the condition that the aspect ratio of the pattern is 2.5:1.
按上述方案，所述车辆故障场景具体为：车辆在车前和车后投影出高宽比为2.5：1的三角形故障标志。According to the above solution, the vehicle failure scene is specifically: the vehicle projects a triangular failure sign with an aspect ratio of 2.5:1 in front of and behind the vehicle.
按上述方案，所述上下坡场景具体为：车辆的左前灯和右前灯在上坡时依据上坡的坡度向上调整角度，在下坡时依据下坡的坡度向下调整角度。According to the above solution, the uphill and downhill scene is specifically: the left headlight and the right headlight of the vehicle adjust the angle upward according to the slope of the uphill when going uphill, and adjust the angle downwards according to the slope of the downhill when going downhill.
按上述方案，所述进入窄路场景具体为：中央控制器依据摄像头判断出前方窄路，控制车灯投影出向前的两条直线，两条直线的宽度为车辆出厂宽度加上10cm的裕量。According to the above scheme, the entry into the narrow road scene is as follows: the central controller determines the narrow road ahead according to the camera, and controls the headlights to project two straight lines forward. The width of the two straight lines is the factory width of the vehicle plus a margin of 10cm .
按上述方案，所述中央控制器包括STM32F103C8处理器，所述STM32F103C8处理器分别与总线、存储器和I/O输入输出接口连接。According to the above solution, the central controller includes an STM32F103C8 processor, and the STM32F103C8 processor is respectively connected to a bus, a memory and an I/O input and output interface.
实施本发明的面向交通安全的低照度环境车灯投射系统，具有以下有益效果：Implementing the traffic safety-oriented low-illumination environment vehicle lamp projection system of the present invention has the following beneficial effects:
本发明面向交通安全的低照度环境车灯投射系统，结合暗环境下事故易发的一些场景，能很大程度的整体提高暗环境下行车的安全性，相较于传统的汽车大灯，能够较为直观的反映驾驶环境，辅助驾驶员操纵车辆，从而提高安全性，在一定程度上能够提高汽车的科技感，能够增强驾驶员对车辆的操作信心。The low-light environment vehicle lamp projection system of the present invention is oriented to traffic safety, and combined with some scenes that are prone to accidents in a dark environment, the overall safety of driving in a dark environment can be greatly improved. It more intuitively reflects the driving environment and assists the driver to operate the vehicle, thereby improving safety, improving the sense of technology of the car to a certain extent, and enhancing the driver's confidence in the operation of the vehicle.
附图说明Description of drawings
下面将结合附图及实施例对本发明作进一步说明，附图中：The present invention will be further described below in conjunction with the accompanying drawings and embodiments, in which:
图1是本发明面向交通安全的低照度环境车灯投射系统的结构示意框图；1 is a schematic block diagram of the structure of a low-illumination environment vehicle lamp projection system oriented to traffic safety of the present invention;
图2是本发明的正常行驶场景图；Fig. 2 is the normal driving scene diagram of the present invention;
图3是本发明的转弯行驶场景图；Fig. 3 is the turning driving scene diagram of the present invention;
图4是本发明的停车下车场景图；Fig. 4 is the scene diagram of parking and getting off of the present invention;
图5是本发明的车辆故障场景图；Fig. 5 is the vehicle failure scene diagram of the present invention;
图6是本发明的上坡下坡场景图；Fig. 6 is an uphill and downhill scene diagram of the present invention;
图7是本发明的进入窄路场景图；Fig. 7 is the scene diagram of entering narrow road of the present invention;
图8是本发明的投影到地面的警示标志图。FIG. 8 is a diagram of a warning sign projected onto the ground according to the present invention.
具体实施方式Detailed ways
为了对本发明的技术特征、目的和效果有更加清楚的理解，现对照附图详细说明本发明的具体实施方式。In order to have a clearer understanding of the technical features, objects and effects of the present invention, the specific embodiments of the present invention will now be described in detail with reference to the accompanying drawings.
如图1-8所示，本发明的面向交通安全的低照度环境车灯投射系统包括投影预设图案的车灯投影装置，用于接受前车的方位信息和自身车轮偏移角度的位移传感器，用于识别与前车或者障碍物距离的距离传感器，用于检测自身以及前车的行驶速度的速度检测器，用于检测车头前方物体和车辆前方坡度的识别的摄像头，位移传感器设置于车辆的车头正前方以及车轮上方，距离传感器设置于车辆的车头正前方进气格栅处，速度检测器设置于车辆的车头正前方进气格栅处，摄像头设置于车辆的车头正前方进气格栅处，中央控制器位于车辆的车载电脑处。As shown in Figures 1-8, the traffic safety-oriented low-light environment vehicle lamp projection system of the present invention includes a lamp projection device for projecting a preset pattern, and a displacement sensor for receiving the orientation information of the preceding vehicle and the offset angle of its own wheels. , a distance sensor used to identify the distance from the vehicle in front or an obstacle, a speed detector used to detect the speed of the vehicle and the vehicle in front, a camera used to detect the object in front of the vehicle and the recognition of the slope in front of the vehicle, and the displacement sensor is installed in the vehicle The distance sensor is located directly in front of the front of the vehicle and above the wheels, the distance sensor is located at the intake grille directly in front of the vehicle, the speed detector is located at the intake grille directly in front of the vehicle, and the camera is located in the intake grille directly in front of the vehicle. At the gate, the central controller is located at the vehicle's on-board computer.
所述车灯投影装置包括前方投影装置、侧方投影装置、后方投影装置，所述前方投影装置设置于车辆前方大灯处，所述侧方投影装置设置于b柱上距离车辆底盘30cm处，所述后方投影装置设置于车辆后方尾灯处。用于处理位移传感器、距离传感器、速度检测器收集的综合信息的中央控制器；将处理位移传感器、距离传感器和速度检测器收集的综合信息传递给中央处理器，中央处理器根据预设程序控制车灯投影装置规划场景投射到车上前方的路面；综合信息还包括车辆的驾驶室开关、左后车门的开关、副驾驶室开关、右后车门的开关、车辆故障按钮耦合和车辆转向灯耦合。The headlight projection device includes a front projection device, a side projection device, and a rear projection device. The front projection device is arranged at the front headlight of the vehicle, and the side projection device is arranged on the b-pillar at a distance of 30 cm from the vehicle chassis. The rear projection device is arranged at the rear tail light of the vehicle. The central controller for processing the comprehensive information collected by the displacement sensor, the distance sensor and the speed detector; transmits the comprehensive information collected by the processing displacement sensor, the distance sensor and the speed detector to the central processing unit, and the central processing unit controls according to the preset program The lamp projection device projects the planning scene to the road ahead of the vehicle; the comprehensive information also includes the vehicle's cab switch, left rear door switch, passenger cab switch, right rear door switch, vehicle fault button coupling and vehicle turn signal coupling .
场景包括：跟车行驶场景、转弯行驶场景、停车下车场景、车辆故障场景、上下坡场景和进入窄路场景。跟车行驶场景具体为：中央控制器以车辆的行驶速度和与前车的车头间距为基础，在车辆前方从车辆近处到远处投影出绿色的简单视距识别线、蓝色的停车视距线、黄色的建议跟车视距线和红色的停车线，中央控制器根据速度不同投射不同的长度，并在与前车小于停车线时以5hz的频率闪烁。转弯行驶场景具体为：车辆的前车灯自动向转弯方向偏移，并投射出车辆的转弯行驶轨迹，车辆的后车灯投影出地面警示标识，警示标识满足图案高宽比为2.5：1的条件。停车下车场景具体为：车辆的驾驶室车门或左后车门打开时，在车辆左后方投影出警示标志，车辆的副驾驶门或左后车门打开时，在车辆左后方投影出警示标志，警示标志满足图案高宽比为2.5：1的条件。车辆故障场景具体为：车辆在车前和车后投影出高宽比为2.5：1的三角形故障标志。上下坡场景具体为：车辆的左前灯和右前灯在上坡时依据上坡的坡度向上调整角度，在下坡时依据下坡的坡度向下调整角度。进入窄路场景具体为：中央控制器依据摄像头判断出前方窄路，控制车灯投影出向前的两条直线，两条直线的宽度为车辆出厂宽度加上10cm的裕量。Scenarios include: following the car, turning, parking and getting off, vehicle failure, uphill and downhill, and entering a narrow road. The following scenarios are as follows: the central controller projects a simple green line of sight distance and a blue line of sight distance in front of the vehicle from the near to the far distance of the vehicle based on the speed of the vehicle and the distance to the front of the vehicle. The distance line, the yellow suggested line of sight line and the red stop line, the central controller projects different lengths according to different speeds, and flashes at a frequency of 5hz when the vehicle in front is smaller than the stop line. The turning driving scene is specifically: the headlights of the vehicle are automatically shifted to the turning direction, and the turning trajectory of the vehicle is projected, and the rear lights of the vehicle are projected on the ground warning signs, and the warning signs meet the pattern aspect ratio of 2.5:1. condition. The specific scene of parking and getting off is: when the cab door or the left rear door of the vehicle is opened, a warning sign is projected on the left rear of the vehicle; The logo satisfies the condition that the pattern aspect ratio is 2.5:1. The vehicle failure scenario is as follows: the vehicle projects a triangular failure sign with an aspect ratio of 2.5:1 in front of and behind the vehicle. The uphill and downhill scene is specifically: the left headlight and the right headlight of the vehicle adjust the angle upward according to the slope of the uphill when going uphill, and adjust the angle downwards according to the slope of the downhill when going downhill. The scene of entering a narrow road is as follows: the central controller determines the narrow road ahead according to the camera, and controls the headlights to project two straight lines forward. The width of the two straight lines is the factory width of the vehicle plus a 10cm margin.
在车辆左右前方大灯侧面、后方左右尾灯侧面、b柱上距离车辆底盘30cm处均设置有投影功能的灯。车灯投影装置投影的图案高宽比为2.5：1，从后车驾驶员视角来看，可视性更高，且投射图案不局限于警示标志。中央控制器包括STM32F103C8处理器，所述STM32F103C8处理器分别与总线、存储器和I/O输入输出接口连接。Lamps with projection function are provided on the sides of the left and right front headlights, the sides of the rear left and right tail lamps, and the b-pillars at a distance of 30cm from the vehicle chassis. The aspect ratio of the pattern projected by the lamp projection device is 2.5:1, which is more visible from the perspective of the driver behind, and the projected pattern is not limited to warning signs. The central controller includes an STM32F103C8 processor, and the STM32F103C8 processor is respectively connected with a bus, a memory and an I/O input and output interface.
中央控制器的工作过程为：首先由位移传感器、距离传感器、速度检测器和摄像头从环境和车辆中识别信息，并将信息传递给中央控制器，中央控制器根据传递来的综合信息根据预设的程序做出判断，将当前环境划分为跟车行驶场景；转弯行驶场景；停车下车场景；车辆故障场景；上下坡场景；进入窄路场景六个场景，得到指令后，再由中央控制器发出指令由汽车车灯投影出不同的图案。The working process of the central controller is: first, the displacement sensor, distance sensor, speed detector and camera identify information from the environment and the vehicle, and transmit the information to the central controller. The program makes judgments and divides the current environment into six scenarios: following the car; turning and driving; parking and getting off; vehicle failure; going up and down the slope; entering the narrow road scenario. Issue commands to project different patterns from the headlights of the car.
正常行驶场景下：中央控制器依据车辆实时速度控制车灯投射出不同距离的四条直线，其中，a为绿色的简单视距识别线，b蓝色的停车视距线，c黄色的跟车建议距离线，d为红色的必须停车；停车线的停车具体速度匹配的距离见表1。In normal driving scenarios: the central controller controls the lights to project four straight lines with different distances according to the real-time speed of the vehicle, among which a is the simple line of sight in green, b is the line of sight for parking in blue, and c is the suggestion for following the car in yellow The distance line, d is red, must stop; the specific speed matching distance of the stop line is shown in Table 1.
表1必须停车的停车速度与前车距离的匹配表Table 1 Matching table between the parking speed and the distance of the preceding vehicle that must be stopped
如图3所示，转弯行驶场景下：中央控制器依据车轮偏移角度以及转向灯的耦合控制车灯投影，在前方，除车辆前方正常照明区域外，向车辆转向角度方向多10度的照明区域。在后方投影出左转或右转标志，其中车辆的前灯偏移角度为10度，车辆的后方投影出图案高宽比为2.5：1的警示标志。As shown in Figure 3, in the turning driving scenario: the central controller controls the projection of the lights according to the wheel offset angle and the coupling of the turn signals. In the front, in addition to the normal lighting area in front of the vehicle, the lighting is 10 degrees more in the direction of the steering angle of the vehicle. area. A left-turn or right-turn sign is projected at the rear, where the vehicle's headlights are offset by 10 degrees, and a warning sign with a pattern aspect ratio of 2.5:1 is projected at the rear of the vehicle.
如图4所示，停车下车场景下，中央控制器依据车辆的左右车门的闭合，控制车灯投影，在车辆开门的方向，投影出图案高宽比为2.5：1的警示标志。As shown in Figure 4, in the scene of parking and getting off, the central controller controls the projection of the lights according to the closing of the left and right doors of the vehicle, and projects a warning sign with a pattern aspect ratio of 2.5:1 in the direction of the vehicle opening.
车辆故障场景下：中央控制器依据车辆故障耦合按钮，控制车灯投影出在车辆后方投影高宽比为2.5：1的警示标志。In the vehicle failure scenario: the central controller controls the headlights to project a warning sign with an aspect ratio of 2.5:1 at the rear of the vehicle according to the vehicle failure coupling button.
上坡下坡场景时：中央控制器依据摄像头判断出车辆的上下坡，控制车辆的前灯向上或向下调整角度，当识别到前方有上坡时，车灯向上偏移；识别到有下坡时，车灯向下偏移。When going uphill and downhill: the central controller determines the uphill and downhill of the vehicle according to the camera, and controls the headlights of the vehicle to adjust the angle upwards or downwards. On hills, the lights are offset downwards.
进入窄路场景时：中央控制器依据摄像头判断出前方窄路，控制车灯投影出向前的两条直线，其宽度为车辆出厂宽度加上10cm的裕量。When entering the narrow road scene: the central controller judges the narrow road ahead according to the camera, and controls the lights to project two straight lines forward, the width of which is the width of the vehicle factory plus a 10cm margin.
上面结合附图对本发明的实施例进行了描述，但是本发明并不局限于上述的具体实施方式，上述的具体实施方式仅仅是示意性的，而不是限制性的，本领域的普通技术人员在本发明的启示下，在不脱离本发明宗旨和权利要求所保护的范围情况下，还可做出很多形式，这些均属于本发明的保护之内。The embodiments of the present invention have been described above in conjunction with the accompanying drawings, but the present invention is not limited to the above-mentioned specific embodiments, which are merely illustrative rather than restrictive. Under the inspiration of the present invention, without departing from the scope of protection of the present invention and the claims, many forms can be made, which all belong to the protection of the present invention.
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