发明名称 Method and apparatus for wireless tracking and communication
摘要 A positional tracking system including a mobile unit is disclosed which may be disposed in a pre-determined coverage area, such as an amusement park. The mobile unit may send an alert message to a dispatch center or parent units if the mobile unit enters locations defined by forbidden coordinates. The mobile unit may function only within the a coverage area, and thus park patrons will have little incentive to remove mobile units from the coverage area. A dispatch center may determine when the mobile unit leaves the coverage area and notify a parent unit. Additionally, the mobile unit can automatically sound an audible alert when leaving the coverage area.
申请公布号 US2003030561(A1) 申请公布日期 2003.02.13
申请号 US20010925104 申请日期 2001.08.08
申请人 YAFUSO BYRON;SEIGNIOUS KAYLA R. 发明人 YAFUSO BYRON;SEIGNIOUS KAYLA R.
分类号 G08B21/02;(IPC1-7):G08B23/00 主分类号 G08B21/02
代理机构 代理人
主权项
地址