Railroad crossing alarm of alarm control for the train detector

摘要

(57) Abstract Objective Way operation becomes unstable, depending upon the rust and the like of the carriage railThe train detection device for alarm control of highway crossing signal which does not have thing stoppingOffer. Constitution Near alarm start dot microwave sender 11 myClo wave receiver 12 is installed. Receiver 12 sender 11When and others microwave is received, operating, alarm control relay RWhen it operates, receiver 12 stops receiving, rehabilitating, alarmThe relay RA which makes control relay rehabilitate R is provided. Police/policingNear information end point microwave sender 16 and microwave receiver17 is installed. Receiver 17 from sender 16 microWhen receiving the wave, rehabilitating, train 14 coming, microWhen receiver 17 receives by reflecting the wave it operates,When train 14 passes, again rehabilitating, alarm control relay R motionThe work the relay RB which it can point is provided.