Data signal transmitting system - has sensor which detects approach of receiver, switches on information display then switches it off until next approach

摘要

A signal transmitting device comprising a transmitter (1), a receiver (2) and a controller (14) for controlling the transmitter (1) in dependence on the distance of a target (8) on which the receiver (2) is located. An activation signal generator (3) near the receiver emits a signal and a distance sensor (11) near the transmitter measures the distance of the target. USE/ADVANTAGE - Especially for displaying product information to shoppers as they approach the product. The transmitter is placed on the shelf and the receiver is on the shopping trolley. Individual information transmission with higher attention.