INTEGRATED LAP COUNTER FOR RADIO CONTROL MODEL

摘要

PURPOSE: To easily count up the number of laps by detecting a spurious radio frequency electromagnetic signal occasionally generated from a radio receiver in a vehicle and the individual characteristics of the radio receiver. ;CONSTITUTION: The speed, steering and direction of a model racing car 1 are controlled by radio frequency control signals generated from a transmitter 8. A control signal receiver 9 loaded on the racing car 1 interpretes these signal as control instructions and continuously and freely generates spurious radio frequency electromagnetic radiation as a noise signal form 2. The receiver 9 is oscillated at specific frequency in order to prevent crosstalk between the racing car 1 itself and its transmitter. When the racing car 1 passes a position on a track on which laps are to be counted, spurious noise signals 2 are collected to a lap counter 7 through a conductor 10.;COPYRIGHT: (C)1993,JPO