作者: Anthony E. Dombrowski
DOI:
关键词: Obstacle 、 Signal 、 Electrical engineering 、 School bus 、 ALARM 、 Electronic engineering 、 Antenna (radio) 、 Transceiver 、 Object (computer science) 、 Doppler effect 、 Engineering
摘要: A driver alerting device for a school bus or the like includes pair of transceivers adapted mounting at forward end and below vehicle. Return wave signals from any object person within transceiver range are supplied to through an antenna connection. Any resultant doppler shift signal is amplified driving audio alarm alert presence range.