公开(公告)号：US3688254A

公开(公告)日：1972-08-29

申请号：US3688254D

申请日：1970-02-06

Applicant: OMRON TATEISI ELECTRONICS CO

Inventor： URYU SADAYUKI ,  UEDA HIROSI

IPC: G08G1/08 ,  G08G1/07

CPC classification number: G08G1/08

Abstract: A system for controlling the traffic signal lights at an intersection where at least two streets cross, which comprises: a vehicle detector having a predetermined detection zone and provided on one of said streets at each side of said intersection to produce a detection signal in response to the presence of a vehicle within said detection zone; means for receiving said detection signal to produce an actuation signal when said detection signal continues for a predetermined period of time; and control means operable in response to said actuation signal to control said signal lights. The system may further include means for causing said actuation signal producing means to be operative only when right-of-way is not given to said one street. With no right-of-way being given to said one street, when a vehicle arriving at the intersection from said one street to be stopped and stay in said detection zone for said predetermined period of time, said actuation signal is produced to actuate said control means to control said signal lights so as to give rightof-way to said one street. The system may still further include means for applying said detection signal as an alternative actuation signal to said control means when right-of-way is given to said one street, so that said control means operates to extend the period of said right-of-way for said one street, thereby allowing the vehicle that has caused said detection signal to pass through said intersection.

Abstract translation: 一种用于在至少两个街道交叉的十字路口处控制交通信号灯的系统，其包括：具有预定检测区域的车辆检测器，并且设置在所述十字路口的每一侧的所述街道之一上，以产生响应于 车辆在所述检测区域内的存在; 用于当所述检测信号持续预定时间段时接收所述检测信号以产生致动信号的装置; 以及响应于所述致动信号可操作以控制所述信号灯的控制装置。 该系统还可以包括用于使所述致动信号产生装置仅在没有给予所述一条街道时正常操作的装置。 在没有向所述一条街道通行的情况下，当车辆从所述一条街道到达所述交叉路口停止并停留在所述检测区域中所述预定时间段时，产生所述致动信号以致动所述控制 控制所述信号灯的手段，以便向所述一条街道通行。 该系统还可以包括用于当向所述一条街道通行时将所述检测信号作为替代致动信号施加到所述控制装置的装置，使得所述控制装置操作以延长所述右路的周期， 以使所述检测信号的车辆通过所述交叉路口。

公开(公告)号：US3602880A

公开(公告)日：1971-08-31

申请号：US3602880D

申请日：1968-02-08

Applicant: OMRON TATEISI ELECTRONICS CO

Inventor： UEDA HIROSI ,  NAKATANI HISAO

IPC: G08G1/08

CPC classification number: G08G1/08

Abstract: A system for providing smooth traffic control at an intersection of two or more streets includes a detecting means for each street which comprises a combination of detectors and a signal generator which produce a first signal when a platoon has been detected on the street and a second signal which denotes the traffic volume on the street. The first and second signals from the detecting means are coupled to a logic means which also has inputs from the traffic signal green indicators for each street and a priority command signal. The logic means include a component circuit for each street. If a platoon is detected on one of the streets and the signal indication to that street is red, the corresponding component circuit applies a control signal to a controller to change the state of the traffic signal. If platoons coincide on at least two streets, a third circuit including a comparing means having the second signals coupled thereto inhibits the production of a control signal by the corresponding component circuit of the street having the lesser traffic volume. However, a fourth circuit always gives priority to one of the streets when a priority command signal is present, by inhibiting the production of the control signal by the corresponding component circuit of the street which does not have priority.