Variable Information Signsecurity Management System
The variable information signsecurity management system consists of a variable information display module, an information control processing system, a communication system, a monitoring unit, a power supply, and lightning protection devices, and deploys security components to protect system data security.
The foggy road driving safety guidance system integrates multiple technologies such as wireless data transmission, radar vehicle inspection, clock synchronization, real-time control, and safety guidance strategies.
Radar speed measurement mainly utilizes the principle of Doppler Effect