| 摘要 |
PROBLEM TO BE SOLVED: To provide an antitheft system for construction machines, capable of remotely controlling the prevention of the theft of many construction machines without requiring complicated transmission processes. SOLUTION: A management center 4 for managing the construction machine 1 is provided with a transmission device 4a for transmitting at least either the time to stop an engine or the time to cancel the engine stop as time information to the construction machine. The construction machine 1 is equipped with a receiving device 7 for receiving the time information transmitted, a storage part 5a for storing the time information received, a clock 5b for measuring the current time, and an engine control part 5c for stopping the engine when the current time coincides with the time stored in the storage part 5a or for canceling the engine stop. |
