| 摘要 |
<p>PROBLEM TO BE SOLVED: To reduce the danger of malfunction, abnormality of communication operation, etc., as much as possible in the case of a deficiency in power supply from an external power source. SOLUTION: This system is constituted by connecting a main body control part HS and a remote control part RS which use different communication system by a repeating device C enabling them to communicate with each other by their communication systems, they are equipped with an internal power source B continuing control operation until the deficiency state of electric power supplied from the external power source lasts for a permissible time, and when the permissible time is elapsed, the control operation is initialized. Further, the permissible time of the repeating device C is set longer than the permissible time of the main body control part SH. In this case, the repeating device C is so constituted that the elapsed time of the deficiency state of power supply from the external power source is longer than the permissible time of the main body control part HS and the permissible time of the remote control part RS and when the set time shorter than the permissible time of the repeating device C is elapsed, the control operation is initialized.</p> |
