Antitheft device and power generator antitheft system

An antitheft device for a power generator electrically connectable to a work machine, comprising at least one processor circuit with a memory comprising instructions, that when executed by the processor circuit, cause the at least one processor circuit to at least:

• acquire position information from each of a plurality of power generators;
• set a single area including positions of the plurality of power generators as a movable area based on the position information;
• make a predetermined notification if at least one of the plurality of power generators has moved out of the movable area;
• and
• register, if a certain power generator is connected to the work machine, the power generator, and another power generator located within a first distance from the power generator and/or the work machine as the plurality of power generators.

A power generator antitheft system comprising a plurality of power generators electrically connectable to a work machine, and an antitheft device configured to be communicable with each power generator, wherein

• the antitheft device comprises at least one processor circuit with a memory comprising instructions, that when executed by the processor circuit, cause the at least one processor circuit to at least:
• acquire position information from each of the plurality of power generators;
• set a single area including positions of the plurality of power generators as a movable area based on the position informations;
• make a predetermined notification if at least one of the plurality of power generators has moved out of the movable area;
• and
• resister, if a certain power generator is set in an operation state, and/or if a certain power generator is connected to the work machine, the power generator and another power generator located within a first distance from the power generator as the plurality of power generators.