INTELLIGENT ROAD TRAFFIC CONTROL SYSTEM

摘要

PURPOSE: An intelligent road traffic control system is provided, which can collect and control an integrate traffic information by developing a commercial software program to control a commercial hardware of a controller, a PLC(Programmable Logic Controller) and a conflict detector used in the intelligent road traffic control system. CONSTITUTION: A main control part(100) stores an intelligent traffic signal control program and a field data base in a memory and controls a traffic signal by a TOD(Time Of Delay) method and a remote control center. A communication control part transmits/receives information and a control signal between a local control system and the control center and transmits traffic volume information to the control center. A signal light driving part(160) prevents an influence of a system due to an AC current by separating a driving signal from an AC power of the signal light using a latch. A display and keyboard part(150) displays the state of the main control part and every kind of information by a keyboard input. A signal light sensing and conflict detection part(170) compares a driving output signal of the signal light with a lighting state of the real signal light. And a PLC part(190) controls a subsidiary control input and a subsidiary output.