Concept of operation:
KAKKU anti-collision device work on the principal of retro-reflective sensors.
KAKKU Anti-Collision Device
Sensing distance : 1.5 mtrs. to 15 mtrs.
The anti-collision device prevents collision between two E.O.T cranes or other electrically operated moving elements.
The device works on the principle of RETRO-REFLECTIVE sensors. The sensor unit, fitted with a relay, is mounted on the side of one E.O.T crane it emits laser light towards the other object (adjacent crane) / end stopper. A reflector is fitted on the other object, along the optical line of the sensor. When the crane reaches at the set distance towards the other object, the reflector reflects back the light towards the sensor. On receiving the reflected light the sensor operates the relay. The relay sends tripping signal to the control circuit of crane travel mechanism.
To abort collision between two E.O.T cranes , the sensor and reflector combinations are to be mounted on both the cranes.