This is to describe a Large Offroad Dump Truck Unmanned Navigation System used in Torigatayama Limestone Quarry.
The system has been developed with cooperation of Nittetsu Mining Co., Ltd. and Shin Caterpillar Mitsubishi Ltd. and equipped on CAT 777B (85 tons payload). The system has been in production use.
The Unmanned Truck enables high speed travelling under severe climatic conditions.
The Unmanned Dump Truck Navigation System has following features.
1) The system is an Autonomous Guidance System and does not need large ground facilities such as guiding lines.
2) The system is of all weather type and can be used day and night under severe climatic conditions in quarries.
3) The system is composed of multiple fail-safe constructions.
4) The system is fleet system that controls a set of trucks as a fleet.
5) The system has a learning function of a loading position.
6) The system has maximum ground speed of 30 km/hr in forward and 10km/hr in reverse, which enables high speed travelling.