路口交通

1. Sensors detect and alert on poor air quality or adverse weather conditions.

1. iBeacon-equipped traffic lights transmit signals to pedestrian apps.

2. Apps analyze multiple iBeacon signals for precise pedestrian positioning.
   

1. Controllers decode and wirelessly transmit traffic signals via LoRa.

2. mmWave occupancy detectors trigger complementary signals to alert drivers when pedestrians are present, especially in adverse weather.