Signal light machine is based on the induction control principle

Signal analysis for the vehicle arrived in condition of key phase interspersed with mouth, the basis of the principle of induction control, real-time optimization of the green time of each phase, and maintain a harmonic phase of the bright time constant, thus ensuring the ideal thrust deep into the mouth of phase difference is not change, then completes the main

signal according to the arrival of the vehicle in the intersection key phase state, application of the induction control principle of real-time optimization of the green time of each phase, and maintain harmonious aspect starting time constant, so as to ensure the ideal of intersection phase constant, thereby achieve control of the main green wave and effective application of trunk road traffic flow green light time. No cable sensing lines harmonic control than no cable harmonic control has several advantages: on the basis of the green band, locally to ensure that the green band width; Can real-time adjust the phase of the green time, decrease the loss of green time; Improving the efficiency of the mouth of the insert, reduce the delay of the vehicles in the inserted into the mouth. Emergency priority control signal can be hardware input signal as an urgent priority of the input signal, after receiving signal according to the preset priority scheme to stop control, through the time delay, transition and qing rail, parking and exit several stages to complete priority control, emergency vehicle trigger priority control. Bus priority control is bus priority control implementation time when a bus through the intersection priority control method. Can be applied to general public transport vehicles and bus rapid transit priority control of the vehicle. Bus priority control is based on periodic coordination control, in the guarantee of bus priority at the same time, guarantee the coordination effect of coordination phase.