公开(公告)号：US5453740A

公开(公告)日：1995-09-26

申请号：US216343

申请日：1994-03-23

Applicant: Phillip M. Gallagher ,  James N. Hess

Inventor： Phillip M. Gallagher ,  James N. Hess

IPC: B60Q1/52 ,  G01S7/03 ,  G01S7/26 ,  G01S13/10 ,  G01S13/56 ,  G01S13/93 ,  G08G1/16

CPC classification number: G01S7/06 ,  B60Q9/008 ,  G01S13/10 ,  G01S13/56 ,  G01S13/931 ,  G01S2013/9353 ,  G01S2013/9357 ,  G01S2013/9382 ,  G01S2013/9392 ,  G01S7/03

Abstract: A vehicle collision prevention system for preventing a source vehicle from colliding with an obstruent object comprising detection circuitry adapted for detecting and providing an indication of an impending collision with an obstruent object, the detection circuitry further comprising transmission circuitry adapted to transmit a preselected reference signal with a known frequency; reception circuitry adapted to receive a modulated reference signal reflected from an obstruent object; compensation circuitry adapted to receive environmental inputs external to the source vehicle and provide a measure of source vehicle velocity; processor circuitry coupled to the transmission circuitry, reception circuitry, and compensation circuitry, the processor circuitry adapted to control and monitor the transmission and reception of a reference signal, calculate its propagation time to and from an obstruent object, and determine its reflected strength, determine the approximate propagation velocity of the reference signal and obstruent object with respect to the environmental inputs, determine the frequency of the reflected reference signal based upon the Doppler effect, and determine the approximate distance to the obstruent object based upon the reflected reference signal frequency, signal strength and propagation velocity and generate a distance signal indication; indication circuitry coupled to the detection circuitry and adapted for providing an indication of the distance to the obstruent object based on distance signal indications; and a energizing mechanism for energizing the detection circuitry and indication circuitry.

Abstract translation: 一种车辆碰撞防止系统，用于防止源车辆与包含检测电路的物体碰撞，所述检测电路适于检测并提供与被检测物体的即将发生的碰撞的指示，所述检测电路还包括传输电路，其适于传输预选的参考信号与 已知频率 接收电路，适于接收从被摄物体反射的调制参考信号; 补偿电路，其适于接收源车辆外部的环境输入并提供源车辆速度的量度; 耦合到传输电路，接收电路和补偿电路的处理器电路，适于控制和监视参考信号的传输和接收的处理器电路，计算其到达或来自物体的传播时间，并确定其反射强度，确定 参考信号和物体相对于环境输入的近似传播速度基于多普勒效应确定反射参考信号的频率，并且基于反射的参考信号频率确定与被摄物体的近似距离，信号 强度和传播速度，并产生距离信号指示; 指示电路，其耦合到所述检测电路并且适于基于距离信号指示提供到所述物体的距离的指示; 以及用于激励检测电路和指示电路的通电机构。