APPARATUS FOR CHECKING A POSITION OF AN OPERATOR BY USING RADIO WAVES, CONCERNED WITH DETECTING A POSITION OF AN OPERATOR REGARDLESS OF AN OBSTACLE AND PREVENTING AN INCIDENT BY ATTACHING A RADIO WAVE ORIGINATOR TO AN OPERATOR

摘要

PURPOSE: An apparatus for checking a position of an operator by using radio waves is provided to detect a position of an operator regardless of an obstacle and prevent an incident by attaching a radio wave originator to the operator. CONSTITUTION: A radio wave originator(10) is attached to each operator and generates radio waves having a certain frequency. A radio wave receiver(20) is attached to an operation car and senses radio waves outputted from the radio wave originator(10). A distance calculator(30) calculates a position of each operator or a distance between a car and each operator by using radio waves received from the radio wave receiver(20). A light emitting lamp(40) visually informs an operator and a driver when the operator and the car approach within a reference distance. A speaker(50) audibly informs the operator and the driver when the operator and the car approach within the reference distance. A controller(60) operates the light emitting lamp(40) and the speaker(50) according to the result calculated in the distance calculator(30). A display unit(70) displays a position of each operator on a screen. A reference distance input unit(80) changes a reference distance stored in the controller(60).