What type of leds in traffic signal?

The traffic signal is the center of the brain called the intersection traffic signal equipment, traffic signal control is the purpose of the control of road traffic situation, traffic distribution in time ratio. Ordinary people just to see the light but you know the traffic signal which kind? Pay

the traffic signal is the center of the brain called the intersection traffic signal equipment. The purpose of traffic signal control is to control the road traffic condition, and according to the proportion of time distribution of road traffic. Ordinary people only look at the traffic light, but do you know what is the traffic light? Traffic signal controller can be divided into the following several types: 1. Point of control the

single intersection traffic signal control is usually referred to as: point control; 。 For a single intersection control object, by changing the light, on the premise of ensure the safety of vehicles, vehicle can be as much as possible. This is the foundation of traffic signal control, too. Point control can be divided into fixed cycle control, inductive signals control and fuzzy logic control. 2. Line control

; Wire control. It is short for traffic signal coordination control system. Its function is to connect main road traffic signals, adjacent to the main street intersection controller has the same operation cycle, the green light one after another, so that the main street traffic can wait for the red light red lights or less, less so as to improve the efficiency of the main road traffic. 3. Surface control

regional traffic signal control for short: level control; The whole area of several signal coordination to the center of each controlled to control traffic lights, traffic lights can be centrally managed, all controlled by the center of the brain, so as to improve the efficiency of road traffic, improve the road safety, have the effect of energy conservation and emissions reduction.