The invention discloses an urban traffic information indicator
system with
complementation between
solar energy and
alternating current. The urban traffic information indicator
system with the
complementation between the
solar energy and the
alternating current comprises a power supply
system, a controller, a sampling unit, a memory unit, a display unit, an electrical level switching circuit, a
clock calendar
chip and an upper computer, wherein the power supply system supplies power for the controller and the controller controls the power supply system, the sampling unit collects
road traffic information and transmits the
road traffic information to the controller, the memory unit is connected with the controller, the display unit displays current traffic information in real time, the electrical level switching circuit is connected with the controller and the display unit and converts electrical level of a
transistor-
transistor logic(TTL) to electrical level of a radio
station (RS) 232, the
clock calendar
chip is connected with the controller, and the upper computer is arranged in a
command center and transmits
wireless information with the controller through a
wireless transmission unit. Changing-over between the
alternating current and the
solar energy power supply is achieved, the current
road condition information is transmitted to an urban traffic
command center in real time, various road signs and important word prompt message can be displayed at the same time, the
road condition information which is strong in timeliness and is strong in pertinence is provided for drivers, and traffic pressure can be released to a large degree.