Automatic Leveling Device System of Building Hoist

Automatic leveling device system

Building hoist is a kind of essential vertical transportation machinery on construction sites, but the level of automation control is very poor. Generally, there's no leveling device, only depend on operators' eye survey or estimation to levelling; Also there're no call system or display functions, only by gesture or shouting to contact hoist operator. The running of hoist is passive, lack of efficiency and safety.

The leveling device system can detect calling signals of every floor automatically by using callling devices on the each floor, judge the up and down conditions of calling signals to make cages stop precisely. When allow cages to stop at the referred floors, system will issue an decelerating order automatically while cages near to referred floors to make cages stop at the specified floor.