Internet of Things-based traffic light through computing system and method
A technology of traffic lights and computing systems, which is applied in the field of vehicle navigation systems and can solve problems such as loss of vehicles and insecurity
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Embodiment 1
[0024] Example 1: If the electronic map ranging module measures the distance between the nearest traffic light and the vehicle in the path planned by the vehicle navigation system on the electronic map data module is 100 meters, the current green light end time is 5 seconds, the next time The turn-on time of the green light is 10 seconds, and the end time of the next green light is 15 seconds. Through the GPS positioning unit, it can be known that the speed limit of the current road section is 80 km / h, then the speed range displayed on the display unit is 72-80 km / h and 24 km / h. ~36 km / h, and the current green light end time is 5 seconds, the next green light turn-on time is 10 seconds, and the next green light end time is 15 seconds, which are displayed on the display unit at the same time.
Embodiment 2
[0025] Example 2: If the distance is 100 meters, the current green light end time is 2 seconds, the next green light turn-on time is 7 seconds, and the next green light end time is 12 seconds. The GPS positioning unit shows that the current road speed limit is 80 km / hour, then the speed range displayed on the display unit is 30-52 km / h. Since the speed obtained by dividing 100 meters by 2 seconds is 180 km / h, which exceeds the limit speed of 80 km / h, the system does not To be considered, the speed range displayed by the display unit is 30-52 km / h, and the current green light end time is 2 seconds, the next green light turn-on time is 7 seconds, and the next green light end time is 12 seconds. superior.
Embodiment 3
[0026] Example 3: If the distance is 100 meters, the current green light end time is 0 seconds, the next green light turn-on time is 5 seconds, and the next green light end time is 20 seconds. The GPS positioning unit shows that the speed limit of the current road section is 80 km / hour, then the speed range displayed on the display unit is 18-72 km / h, and the current green light end time is 0 seconds, the next green light turn-on time is 5 seconds, and the next green light end time is 20 seconds. superior.
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