| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an anti-theft method capable of quickly performing driving of a vehicle even when a user forgets a personal identification number. <P>SOLUTION: A hydraulic shovel 100 can be also started by a manager personal identification number other than a user personal identification number. The manager personal identification number is, for example, a number previously determined at shipping of a maker and is managed by executive responsibility person. When an operator forgets the user personal identification number, the operator can perform starting of the hydraulic shovel 100 by obtaining the manager personal identification number of the executive responsibility person by a telephone or the like. Further, since the manager personal identification number can be changed, even if the manager personal identification number is transmitted to the operator who forgets the user personal identification number, the executive responsibility person can set a new manager personal identification number separate from the manager personal identification number transmitted to the operator. <P>COPYRIGHT: (C)2008,JPO&INPIT |
