| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To prolong the life of a product as a radio wave module, to properly hold memory information stored in a storage section even when a battery is replaced, and to suitably performing security operation even in a storage stage during distribution of the radio module as the product. <P>SOLUTION: The radio wave module 1 has a main battery 32 removably set in a primary radio wave module body 2 and is configured to supply operating electric power from a sub-battery 9 to a volatile memory 60 and an abnormality detection section 57 even when the main battery 32 is not set in the primary radio wave module body 2 normally. When the capacity of the main battery 32 becomes shortage, the main battery 32 is replaced to prolong the life of the product as the radio wave module 1. <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
