The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 15, 2014
Filed:
Apr. 13, 2012
Zheng Shi, Shenzhen, CN;
Jiang-feng Liu, Shenzhen, CN;
Zheng Shi, Shenzhen, CN;
Jiang-Feng Liu, Shenzhen, CN;
Shenzhen Futaihong Precision Industry Co., Ltd., Shenzhen, CN;
FIH (Hong Kong) Limited, Kowloon, HK;
Abstract
A road traffic control system is applied to an intersection to control traffic and includes a light support, three traffic lights, a speed measuring device, a light controller, and an alarm. The light support is installed at one lane at the intersection; the three traffic lights are installed on the light support to control traffic. The speed measuring device is installed on guardrails on the lane to measure current speed of vehicle. When one of the traffic lights changes its color to indicate stopping, the light controller synchronously controls the speed measuring device to detect the current speed of the vehicle that is passing through the speed measuring device, and compares the measured speed of the vehicle with a preset speed limit. The alarm outputs warning signals when the measured speed is above the preset speed limit.