Industrial vehicle management system

Abstract

An industrial vehicle management system includes: a receiving unit that acquires operational information specifying a position and an operational state of each of a plurality of industrial vehicles; a symbol combining unit that, based on the operational information received by the receiving unit, superimposes and combines upon a map symbols showing the position of each of the industrial vehicles; a display control unit that displays upon a display device a map image that has been superimposed and combined by the symbol combining unit; and a symbol processing unit that changes display formats of the symbols according to the operational state.

1 . An industrial vehicle management system, comprising:
 a receiving unit that acquires operational information specifying a position and an operational state of each of a plurality of industrial vehicles;   a symbol combining unit that, based on the operational information received by the receiving unit, superimposes and combines upon a map symbols showing the position of each of the industrial vehicles;   a display control unit that displays upon a display device a map image that has been superimposed and combined by the symbol combining unit; and   a symbol processing unit that changes display formats of the symbols according to the operational state.   
     
     
         2 . The industrial vehicle management system according to  claim 1 , wherein:
 the operational information includes at least operating hours and maintenance costs; and   the symbol processing unit changes the display formats of the symbols according to the operating hours or the maintenance costs.   
     
     
         3 . The industrial vehicle management system according to  claim 2 , further comprising:
 a restriction unit that restricts corresponding industrial vehicles to a predetermined hour band among the operating hours, or to predetermined costs among the maintenance costs, wherein:   the symbol combining unit superimposes and combines upon the map, only symbols indicating the corresponding industrial vehicles restricted by the restriction unit.   
     
     
         4 . The industrial vehicle management system according to  claim 3 , wherein:
 the operational information further includes information specifying a type of each of the industrial vehicles, an empty weight of each of the industrial vehicles, an entity in charge of maintenance of each of the industrial vehicles, an operating time of each of the industrial vehicles, an area in which each of the industrial vehicles is located, and the number of warnings issued from each of the industrial vehicles;   the restriction unit restricts the corresponding industrial vehicles based on at least one of the type of each of the industrial vehicles, the empty weight of each of the industrial vehicles, the entities in charge of maintenance of each of the industrial vehicles, the operating time of each of the industrial vehicles, the area in which each of the industrial vehicles is located, and the number of warnings issued from each of the industrial vehicles; and   the symbol combining unit superimposes and combines upon the map, only symbols indicating the corresponding industrial vehicles restricted by the restriction unit.   
     
     
         5 . The industrial vehicle management system according to  claim 1 , wherein:
 the symbol combining unit superimposes and combines, over another symbol, a symbol indicating an industrial vehicle for which a value denoting the operational state is greater.