| 发明名称 | Position determination system | ||
| 摘要 | A position determination system is provided comprising one or more fixed base units and one or more mobile units, wherein the system is arranged to determine the horizontal position of a mobile unit based on the proximity of said mobile unit to at least one base unit and wherein the system is arranged to determine the height of said mobile unit based on the air pressure sensed at the mobile unit and the air pressure sensed at one or more of the base units. The use of pressure sensors to determine height reduces the complexity of the infrastructure required for 3D positioning. The invention finds particular benefit in patient care and monitoring environments and in object tracking and inventory systems. The invention also extends to mobile units for use in the system, intelligent buildings fitted with the system and to methods of determining the position of mobile units. | ||
| 申请公布号 | US9310207(B2) | 申请公布日期 | 2016.04.12 |
| 申请号 | US201113880928 | 申请日期 | 2011.10.20 |
| 申请人 | Sonitor Technologies AS | 发明人 | Booij Wilfred Edwin;Olsen Øysten Haug |
| 分类号 | G08B21/00;G01C21/00;H04W64/00;H04W48/04;A61B5/11;A61B5/00;G01C5/06;G01C21/20;G01S5/00;G01S5/02;G08B21/04;G08B21/18 | 主分类号 | G08B21/00 |
| 代理机构 | O'Shea Getz P.C. | 代理人 | O'Shea Getz P.C. |
| 主权项 | 1. A position determination system comprising one or more fixed base units and one or more mobile units, wherein the system is arranged to determine the position in the horizontal plane of a mobile unit using ultrasound and based on the proximity of said mobile unit to at least one base unit and wherein the system is arranged to determine the height of said mobile unit based on the air pressure sensed at the mobile unit and the air pressure sensed at one or more of the base units. | ||
| 地址 | Oslo NO | ||