发明申请
- 专利标题： Monitoring of shopping cart bottom tray
- 专利标题（中）： 监控购物车底托盘
-
申请号： US11973028申请日： 2007-10-05
-
公开(公告)号： US20080088444A1公开(公告)日： 2008-04-17
- 发明人: Paul Rosebush
- 申请人： Paul Rosebush
- 主分类号： G08B21/24
- IPC分类号： G08B21/24
摘要：
A detection device is provided for alerting a cashier to the presence of an object located on the lower tray of a shopping cart. The detection device uses a combination of a weight sensor and a presence sensor to trigger a signal, all of which are mounted on the cart. The signal is positioned so as to be visible by the user of the cart and store personnel.
公开/授权文献
- US07839284B2 Monitoring of shopping cart bottom tray 公开/授权日：2010-11-23
信息查询
