| 摘要 |
A lifting position monitor is incorporated in a case (20) for attachment to the upper torso of a wearer. The case contains a micro-electromechanical motion sensor arrangement (52) capable of detecting movement in three mutual ly orthogonal axes, which is encapsulated with solid state integrated signal processing electronics (51) to provide respective outputs which represent complex movements in all three axes relative to a datum position. An electronic data processor (70) analyses the outputs to look for predetermine d movement patterns with components in one or more of said axes and operates a n alarm (76) to warn the wearer of a potentially dangerous lifting practice. T he processor (70) can determine the three-dimensional direction, extent and spe ed of movements. Movement data may be recorded and downloaded (74) or sent wirelessly (75) to a remote location for remote monitoring and analysis of long-term movement patterns. |
