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公开(公告)号：US6116640A
公开(公告)日：2000-09-12
申请号：US053451
申请日：1998-04-01
申请人： Hideyuki Tanaka , Yasukazu Sano , Taichi Tanigawa
发明人： Hideyuki Tanaka , Yasukazu Sano , Taichi Tanigawa
IPC分类号： B60R21/01 , B60R21/015 , G06K9/00 , G06T7/00 , B60R21/32
CPC分类号： B60R21/01538 , G06K9/00362 , G06T7/0044
摘要： An apparatus for determining an occupant's posture is provided which includes a sensor having at least one pair of linear photosensor arrays each comprising a plurality of photosensor elements, for forming an image of an occupant, a distance measurement processor that derives distance distributions in fields of view monitored by the linear photosensor arrays, from the image of the occupant formed by the sensor, and an occupant discrimination processor that compares patterns of the distance distributions with model patterns of distance distributions preliminarily stored in the processor, so as to determine the presence and posture of the occupant. The linear fields of view are set to extend in a substantially horizontal direction with respect to the occupant, and the occupant discrimination processor first examines at least one of symmetry of the distance distribution pattern in each field of view, concave or convex shape of the pattern, degree of similarity in variations in the distance distribution patterns between adjacent fields of view, and a distribution of distances measured at a particular position of the fields of view, and then determines the posture of the occupant by comparing the patterns of the distance distributions actually measured, with a group of model patterns that is selected in advance depending upon the result of the examination.
摘要翻译： 提供了一种用于确定乘员姿势的装置，其包括具有至少一对线性光电传感器阵列的传感器，所述至少一对线性光电传感器阵列包括用于形成乘员的图像的多个光传感器元件，在视场中导出距离分布的距离测量处理器 由线性光电传感器阵列从由传感器形成的乘员的图像进行监视;以及乘客判别处理器，其将距离分布的图案与预先存储在处理器中的距离分布的模型图案进行比较，以便确定存在和姿势 的乘客。 线性视场被设定为相对于乘员在大致水平的方向上延伸，乘员判别处理器首先检查每个视场中的距离分布图案的对称性，图案的凹或凸形状 ，相邻视野之间的距离分布图案的变化的相似度，以及在视野的特定位置处测量的距离的分布，然后通过实际比较距离分布的图案来确定乘员的姿势 测量，具有根据检查结果预先选择的一组模型模式。
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公开(公告)号：US6027138A
公开(公告)日：2000-02-22
申请号：US879821
申请日：1997-06-20
申请人： Hideyuki Tanaka , Yasukazu Sano , Taichi Tanigawa
发明人： Hideyuki Tanaka , Yasukazu Sano , Taichi Tanigawa
CPC分类号： B60R21/01538 , B60N2/002 , G01C3/085 , G06K9/00201 , G06K9/00362
摘要： The present invention detects not only the presence of an occupant, but also his/her posture based on the distance distribution of each portion of the occupant within each of monitor fields of view, which distance distribution is obtained by means of a single-stage or multistage occupant sensor. The result of the detection can be used in controlling inflation of an air bag, so as to avoid an accident that might otherwise occur upon inflation of the air bag, thus assuring increased safety and reliability. Since the acceleration can be calculated by arithmetic processing of the output of the distance sensor, there is no particular need to provide an exclusive acceleration sensor. Further, an optical system including the distance sensor may be designed so that the sensor can also detect an occupant whose part of the body is thrust out of automobile.
摘要翻译： 本发明不仅检测乘员的存在，还检测出基于每个监视器视野内的乘员的每个部分的距离分布的姿势，该距离分布是通过单级或 多级乘员传感器 检测结果可用于控制气囊的充气，以避免在气囊膨胀时可能发生的事故，从而确保提高安全性和可靠性。 由于可以通过距离传感器的输出的运算处理来计算加速度，所以不需要提供专用的加速度传感器。 此外，包括距离传感器的光学系统可以被设计成使得传感器还可以检测身体的一部分被推出汽车的乘客。
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公开(公告)号：US5874904A
公开(公告)日：1999-02-23
申请号：US908588
申请日：1997-08-08
IPC分类号： G01C3/06 , B60R21/00 , B60W30/00 , G01S11/12 , G01S17/89 , G01S17/93 , G06T1/00 , G06T7/00 , G08G1/16
CPC分类号： G06T7/0075 , G01S11/12
摘要： An inter-vehicle distance to a preceding or following vehicle is reliably determined by using a simple processing, to alert the following vehicle to approach a dangerous range. The distance measurement apparatus includes a pair of light-receiving devices disposed on image-forming surfaces of lenses and having sensor lines and measurement windows on each sensor line at a certain interval, a distance detection device, a white line detection device and a vehicle detection device. The distance detection device detects distances at points, the coordinates of which are specified by the sensor line numbers and measurement window addresses. By using the detection results, the white line detection device detects a sensor line in which a white line on a road surface is present. By using the detection results obtained from the distance detection device relating to the sensor lines in which the white line is not present, the vehicle detection device checks a presence of a vehicle and outputs information on the inter-vehicle distance and the direction of the vehicle. The following vehicle may be alerted by flashing the brake lights.
摘要翻译： 通过使用简单的处理可靠地确定与前一车辆或后续车辆的车辆间距离，以警告后续车辆接近危险范围。 距离测量装置包括一对光接收装置，其设置在透镜的图像形成表面上，并且在一定间隔的每个传感器线上具有传感器线和测量窗口，距离检测装置，白线检测装置和车辆检测 设备。 距离检测装置检测点处的距离，其坐标由传感器行号和测量窗口地址指定。 通过使用检测结果，白线检测装置检测出存在路面上的白线的传感器线。 通过使用与不存在白线的传感器线相关的距离检测装置获得的检测结果，车辆检测装置检查车辆的存在并输出车辆间距离和车辆方向的信息 。 可以通过闪烁刹车灯来警告以下车辆。
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公开(公告)号：US06459597B1
公开(公告)日：2002-10-01
申请号：US10015946
申请日：2001-12-17
申请人： Seiki Igarashi , Taichi Tanigawa
发明人： Seiki Igarashi , Taichi Tanigawa
IPC分类号： H02J102
CPC分类号： H02M7/5387 , H02M1/12
摘要： An electric power conversion apparatus includes a noise reduction device for reducing the common mode noise and the normal mode noise caused by on/off of the switching devices of an electric power conversion apparatus for driving an AC motor. Since the noise-compensation-current supply circuit of the noise reduction device uses devices with a lower breakdown voltage, the operating speed of the noise-compensation-current supply circuit is higher than the operating speed of the conventional noise-compensation-current supply circuit which uses devices with a higher breakdown voltage equivalent to the DC voltage of the electric power conversion apparatus.
摘要翻译： 电力转换装置包括用于降低由用于驱动AC电动机的电力转换装置的开关装置的通/断引起的共模噪声和正常模式噪声的降噪装置。 由于降噪装置的噪声补偿电流供给电路使用具有较低击穿电压的器件，因此噪声补偿电流供给电路的工作速度高于常规噪声补偿电流供给电路的工作速度 其使用具有与电力转换装置的直流电压相当的更高的击穿电压的装置。
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公开(公告)号：US5915033A
公开(公告)日：1999-06-22
申请号：US929421
申请日：1997-09-15
CPC分类号： G01C3/085 , B60G2400/823 , B60G2401/00 , B60G2401/142 , B60G2800/222 , B60G2800/242 , B60G2800/70
摘要： A method of the invention corrects a detection error, caused by an assembly error, in a distance or a distance-related index detected from an image captured in the visual field of an image detection module including an optical device and a pair of image sensing devices, each including a plurality of image sensors. In the method, the visual field is divided into windows disposed in a two-dimensional matrix format in order to detect the distance or a parallax for a pair of images in each window; the characteristics of an error is expressed in a detected value caused by an angle error in the assembly of the image detection module, as a quadratic polynomial for two angle variables indicating the position of the window within the visual field; parallax for a plurality of windows is detected after a test sample image has been provided to the module; the coefficient value for each term in the polynomial is determined based on the results of the detection, and these values are stored in a storage device; and, when using the image detection module to detect actual distances, the detected value for each window is corrected by adding to it the value of the polynomial to which the stored values of the coefficients and the values of the variables indicating the position of the window are applied.
摘要翻译： 本发明的方法校正由在包括光学装置和一对图像感测装置的图像检测模块的视野中捕获的图像中检测到的距离或距离相关索引中的装配误差引起的检测误差 ，每个包括多个图像传感器。 在该方法中，将视野划分为以二维矩阵格式布置的窗口，以便检测每个窗口中一对图像的距离或视差; 作为用于表示窗口在视野内的位置的两个角度变量的二次多项式，误差特性表示为由图像检测模块的组装中的角度误差引起的检测值; 在将测试样本图像提供给模块之后，检测多个窗口的视差; 基于检测结果确定多项式中的每个项的系数值，并将这些值存储在存储装置中; 并且当使用图像检测模块检测实际距离时，通过将每个窗口的检测值加上其中存储的系数值和指示窗口位置的变量值的多项式的值来校正 被应用。
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