Japanese company YRP Ubiquitous Networking Laboratory demonstrated a system of communication between pedestrians and electric vehicles that uses technology to UWB (ultra wideband). Recall that the standard for wireless communication with a wide frequency band allows for short distances (about 3 meters) to transmit data at speeds up to 480 Mbps. With increasing distance, it is significantly reduced. However, the task of the new development – does not download movies or music, and the provision of accurate information about the distance to the vehicle.
electric vehicles and hybrid vehicles while moving emit a very faint noise, so the pedestrian may not notice the approach of potential danger. There are warning system via mobile phones, but YRP argues that its development has greater accuracy – the error does not exceed 0.3 m. The prototype solutions include a mobile device, deducing the signal to the display, in the form of sound or vibration. In soybean turn in electric vehicle set transmitter. The distance between them on UWB is 30 m, subject to line of sight. Determination moving at a speed exceeding 40 km/h or emerging from the turning machine technology is difficult.
Materials on the topic:
– Avtodaydzhest. Issue number 27;
– Los Angeles-2009: best new car dealership;
– Record the distance – the Japanese electric Daihatsu Mira.
