| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an image display system able to prevent theft of a projector by a simple configuration. <P>SOLUTION: In the image display system 10 comprising a projector 11 for projecting and displaying an image and a wagon 12 on which the projector 11 is placed, the identification number of the projector 11 stored in a storage part 38 of the projector 11 is transmitted to the wagon 12 by a control part 24 of the projector at least when the projector 11 is started, and a control part 54 of the wagon 12 compares the identification number received by the wagon 12 and the identification number stored in a storage part 52 of the wagon 12. If they match, use permission information is transmitted to the projector 11. If the use permission information cannot be obtained from the wagon 12 due to the control part 24 of the projector 11, information that the projector 11 cannot be used is informed by the informing part, and also the power source of the projector 11 is turned off. <P>COPYRIGHT: (C)2012,JPO&INPIT |
