Continuously variable headlamp control
    61.
    发明授权
    Continuously variable headlamp control 有权
    连续可变前照灯控制

    公开(公告)号:US06049171A

    公开(公告)日:2000-04-11

    申请号:US157063

    申请日:1998-09-18

    摘要: Continuously variable headlamps offer greater flexibility for roadway illumination but offer challenges in automatic control design. Each continuously variable headlamp has an effective illumination range varied by changing at least one parameter from a set including horizontal direction aimed, vertical direction aimed, and intensity emitted. A system for automatically controlling continuously variable headlamps on a controlled vehicle includes an imaging system capable of determining lateral and elevational locations of headlamps from oncoming vehicles and tail lamps from leading vehicles. The system also includes a control unit that can acquire an image from in front of the controlled vehicle. The image covers a glare area including points at which drivers of oncoming and leading vehicles would perceive the headlamps to cause excessive glare. The image is processed to determine if at least one oncoming or leading is within the glare area. If at least one vehicle is within the glare area, the headlamp illumination range is reduced. Otherwise, the headlamp illumination range is set to full illumination range.

    摘要翻译: 连续可变头灯为道路照明提供更大的灵活性,但在自动控制设计中提供了挑战。 每个连续可变的前照灯具有通过从包括水平方向目标,垂直方向瞄准和发射强度的组中改变至少一个参数而变化的有效照明范围。 用于在受控车辆上自动控制连续可变头灯的系统包括能够确定来自迎面而来的车辆的前照灯和来自主要车辆的尾灯的侧向和高度位置的成像系统。 该系统还包括可从受控车辆前方获取图像的控制单元。 该图像覆盖了眩光区域,其中包括即将到来的和主要车辆的驾驶员将感觉到头灯引起过度眩光的点。 处理图像以确定在眩光区域内是否至少有一个迎面而来的或领先的。 如果至少一辆车辆在眩光区域内,那么前照灯照明范围就会降低。 否则,前照灯的照明范围设定为全光照范围。

    Moisture sensor and windshield fog detector using an image sensor
    62.
    发明授权
    Moisture sensor and windshield fog detector using an image sensor 失效
    湿度传感器和挡风玻璃雾度检测器使用图像传感器

    公开(公告)号:US5923027A

    公开(公告)日:1999-07-13

    申请号:US931118

    申请日:1997-09-16

    摘要: A control system for automatically detecting moisture on the windshield of a vehicle. The automatic moisture detecting system includes an optical system for imaging a portion of the windshield on to an image array sensor, such as a CMOS active pixel sensor. The voltages of each of the pixels which represents the illumination level is converted to a corresponding gray scale value by an analog digital converter. The gray scale values corresponding to the image are stored in memory. The spatial frequency composition of the gray scale values are analyzed to determine the amount of rain present. In order to provide a control signal to control the operation of the windshield wipers of the vehicle as a function of the amount of moisture present. The system is also adapted to detect the level of fog both on the interior of the windshield as well as the exterior of the windshield. By providing a system for automatically detecting the presence of fog on the interior and exterior of the windshield, serious performance limitations of known automatic rain sensors are eliminated.

    摘要翻译: 一种用于自动检测车辆挡风玻璃上的水分的控制系统。 自动水分检测系统包括用于将挡风玻璃的一部分成像到诸如CMOS有源像素传感器的图像阵列传感器上的光学系统。 通过模拟数字转换器将表示照明电平的每个像素的电压转换成相应的灰度值。 与图像对应的灰度值存储在存储器中。 分析灰度值的空间频率组成以确定存在的雨量。 为了提供控制信号以根据存在的水分的量来控制车辆挡风玻璃刮水器的操作。 该系统还适用于在挡风玻璃的内部以及挡风玻璃的外部上检测雾的水平。 通过提供用于自动检测挡风玻璃内部和外部的雾的系统,消除了已知的自动雨水传感器的严重性能限制。

    Systems and components for enhancing rear vision from a vehicle
    67.
    发明授权
    Systems and components for enhancing rear vision from a vehicle 有权
    用于增强车辆后视的系统和部件

    公开(公告)号:US06672745B1

    公开(公告)日:2004-01-06

    申请号:US09724136

    申请日:2000-11-28

    IPC分类号: B60Q100

    摘要: A vehicle system is disclosed that includes a vehicle lamp assembly including a plurality of LEDs that emit white light so as to function as an illuminator light. The lamp assembly also may include a plurality of LEDs that emit colored light, such as red or red-orange, so as to function as a signal light. Alternatively or additionally, the lamp assembly may include a camera of a vehicle imaging system. The lamp assembly may serve as a center high mounted stop light or as a tail light. The system also includes a controller that rapidly pulses the LEDs on and off at a rate that is imperceivable by the human eye. The pulsing intervals of the LEDs may be related to the readout intervals of the camera sensor array. In this manner, the LEDs may be pulsed on during camera readout so as to increase their intensity while the camera is capturing an image, or may be pulsed off during camera readout to prevent feedback glare from interfering with image capture by a highly sensitive image sensor array of the camera.

    摘要翻译: 公开了一种车辆系统,其包括车灯组件,其包括发射白光以发挥照明灯光的多个LED。 灯组件还可以包括发射彩色光的多个LED,例如红色或红橙色,以便用作信号光。 或者或另外,灯组件可以包括车辆成像系统的照相机。 灯组件可以用作中央高安装的停止灯或作为尾灯。 该系统还包括一个以人眼不可能发生的速率快速地脉冲LED的控制器。 LED的脉冲间隔可能与相机传感器阵列的读出间隔有关。 以这种方式,在相机读出期间,LED可以被脉冲接通,以便在照相机捕获图像时增加它们的强度,或者可以在相机读出期间脉冲关闭以防止反射眩光干扰高灵敏度图像传感器的图像捕获 相机阵列。