发明名称 |
NAVIGATION SYSTEMS AND METHODS FOR WHEELED OBJECTS |
摘要 |
A system for controlling shopping carts usage in the vicinity of a parking lot, the system comprising:
a device that repeatedly transmits a lock command from a directional antenna (282), said directional antenna mounted above ground and angled downward to create a lock zone (286) in which shopping cart use is restricted, said lock zone encompassing an exit area associated with the parking lot; and
a plurality of shopping carts, each shopping cart comprising a brake mechanism, and comprising an RF communication circuit that is responsive to the lock command by activating the brake mechanism. |
申请公布号 |
EP1869405(B1) |
申请公布日期 |
2014.10.08 |
申请号 |
EP20060739105 |
申请日期 |
2006.03.20 |
申请人 |
GATEKEEPER SYSTEMS, INC. |
发明人 |
CARTER, SCOTT, J.;HANNAH, STEPHEN, E.;JAMES, JESSE, M. |
分类号 |
G08B13/24;A47F10/04;B60K25/08;B60T7/16;B62B3/14;B62B5/04;G01C17/00;G01C21/00;G01C21/12;G06Q10/08;G08G1/00;H02K7/18 |
主分类号 |
G08B13/24 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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