| 摘要 |
<p>A system for simplifying the life of a person comprises a base station carried by the user (person) and one or more 'mobile units' communicating with the base station. The base station can detect the presence and/or the absence of the respective mobile unit within a surveyed area. In some applications, a 'mobile unit' can detect the presence or absence of a base station within a 'surveyed area' to, for example, enable or disable an object associated with the mobile unit.</p> |
