公开(公告)号：US3852590A

公开(公告)日：1974-12-03

申请号：US36763373

申请日：1973-06-06

Applicant: STEWART WARNER CORP

Inventor： BROUWER F

IPC: G05D3/00 ,  B23Q35/128 ,  G06K11/02 ,  G06T1/00

CPC classification number: G06K11/02 ,  B23Q35/128

Abstract: The following specification describes a contour tracing photocell and circuit arrangement for a tracing head utilizing a plurality of equal area photocells in juxtaposed positions transverse to the axis of a line or pattern edge whose contour is being traced. In tracing a line or the edge of a pattern is projected intermediate the center pair of cells. A signal from each cell of the pair is combined with a signal from a respective cell spaced adjacent and on the opposite side of the other cell of the pair to provide a signal representing the direction and displacement of the line or edge. The signals are derived from respective tandemly connected differential amplifiers whose outputs are combined in a resistive summing circuit to derive signals representing direction and displacement of either a line, left pattern edge or right pattern edge for controlling both the steering head and coordinate drive motors to move the head along the line or edge.

Abstract translation: 以下说明书描述了用于跟踪头的轮廓跟踪光电元件和电路装置，其利用多个相等面积的光电池，其横向于正在跟踪其轮廓的线或图案边缘的轴线并置位置。 在追踪一条线或图案的边缘投影在中心细胞对之间。 来自该对的每个单元的信号与来自在该对的另一个单元相邻且相对侧间隔开的相应单元的信号组合，以提供表示线或边缘的方向和位移的信号。 信号源自各自串联连接的差分放大器，其输出组合在电阻求和电路中，以导出表示方向和位移的信号，即线，左图案边缘或右图案边缘，用于控制转向头和坐标驱动电机移动 头部沿线或边缘。

公开(公告)号：US3714649A

公开(公告)日：1973-01-30

申请号：US3714649D

申请日：1970-05-18

Applicant: STEWART WARNER CORP

Inventor： KREMPEL F ,  PAYNE R ,  BROUWER F ,  ENGLEHARDT W

IPC: G01S1/02 ,  G01S19/19 ,  G07C1/20 ,  G07C1/24 ,  G07C5/08 ,  G08G1/07 ,  G01S9/56

CPC classification number: G07C1/24 ,  G01S1/02

Abstract: A completely automatic system for monitoring auto racers or the like. Each vehicle carries a transponder which senses its own passage of a position event such as crossing the start-finish line, entering or leaving the pit area, etc., and transmits a signal indicating same to a track side receiver adjacent that event position on a time shared basis with the transponders of all other vehicles. A master transmitter sends a time divisible sync signal to all of the vehicle transponders and each transponder is adapted to transmit a position event signal during only a predetermined time division of the sync signal. Thr track side receivers feed into a central control unit which is also synchronized with the master transmitter and logs the appearance of its positional event of each vehicle in real time. A clock and a computer are provided so that racing rank, lap speeds, etc., may be determined from the log data. A unique position event occurrence sensing system is also disclosed in which an inductance carried by the vehicle passes through a fluctuating magnetic field, the polarity orientation of which defines the position of the particular event.