Case study of intelligent guidance system for narrow road traffic lights in underground garage of Guangzhou Tianhe Public Security Bureau
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1. Selection of intelligent control system for narrow traffic lights:
Product model: RD303
Product specifications: automatic counting, card opening type
Brand Manufacturer: Rui Fonda
2. Requirements of the intelligent guidance system for narrow traffic lights:
1. Vehicles entering the entrance direction. When the entrance: red light, no traffic, and instructions are waiting, the entrance vehicle cannot cross the yellow “red light no-stop area” and press on the entrance ground feeling, otherwise it will cause system instructions to judge errors.
2. Vehicles in and out of the direction strictly follow the traffic light guidelines to wait or travel along.
3. The power supply of the traffic light controller and the vehicle detector is 220V, and the green light intelligent guidance control must take one single-phase 220V AC power source, not the non-in-phase power source of the three-phase.
3. Description of the intelligent control system for narrow traffic lights:
1. When there is no vehicle entering at the entrance and no vehicle going out at the exit, both ends of the entrance and exit are green lights;
2. When there is a vehicle at the entrance that wants to enter, press it to the entrance first:
1) The red light at the exit turns on immediately, and the green light at the entrance remains unchanged. At this time, vehicles in the direction of the entrance can swipe their cards to open the barriers, and they will automatically fall off after passing the barriers;
2) At this time, the entrance vehicle can continuously swipe the card to enter under the guidance of the entrance green light;
3) When all the vehicles entering the channel at the entrance have passed the ground sense of the exit, the two ends of the entrance and exit will return to green lights;
3. When there is a vehicle at the exit that wants to go out, first press it to the exit location:
1) The red light at the entrance turns on immediately, and the green light at the exit remains unchanged. At this time, vehicles in the direction of the exit can swipe their cards to open the exit barriers, and they will automatically fall off after passing the exit barriers;
2) At this time, under the guidance of the exit green light, the export vehicle can continuously swipe the card to go out;
3) When all the vehicles entering the passage from the exit have passed the ground sense of the entrance, the two ends of the entrance and exit will return to green lights;
4. The narrow-lane traffic light intelligent guidance system can automatically count the vehicles in the passage, and only when all vehicles in the priority direction have exited the passage, the traffic lights will start to change.
5. The intelligent control system for narrow road traffic lights always starts the refresh countdown with the vehicle that has the priority to pass and finally enters the channel. After more than 5 minutes (settable), the intelligent control system for traffic lights automatically restores the two ends to the green light traffic state;
6. The barrier itself has the functions of automatic gate-off, anti-smashing, and vehicle counting. When the card is valid for the outgoing vehicle, the gate opening signal is output and the barrier is opened. When the vehicle passes the barrier, the barrier automatically falls. When there are multiple vehicles passing in one direction continuously at the same time, and the signals of multiple vehicle swiping cards to effectively open the gate are continuously output, the internal chip of the barrier starts to count the received gate opening signals, and the barrier gate receives N gate opening signals. , And detect that N vehicles passing through the barrier will automatically drop off.
7. The intelligent guidance system for narrow traffic lights can be equipped with artificial buttons, remote control and other devices to restore the red lights at both ends to the green traffic state.
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