Construction machine management, permitting operation of a construction
machine only under specified conditions and inhibiting its operation in
case it is in a state incongruent with preset working conditions. Working
conditions for each construction machine are set up by a working
conditions setup means, including a geographically divided working area
and a working time zone in which a construction machine is allowed to
operate in a specified working area. Setup working conditions are stored
in a memory means. At the time of starting a construction machine, the
status of the construction machine is checked for by a status checkup
means which is adapted to check for current position of the construction
machine and current time against the working area and working time zone
of the setup working conditions. In case a construction machine is found
to be in a state incongruent with both of the working area and the
working time zone of the preset working conditions, the management
inhibits operation of that construction machine.