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Sleep posture has been used as a sleep assessment indicator in home health monitoring and clinical monitoring in recent years. Considering comfort and usability, unobtrusive sleep posture detection is needed. In this paper, we proposed a novel sleep respiration-derived posture (RDP) method based on left and right lung respiration impedance signals. We developed a dual-channel respiratory impedance...
This paper presents the design and characterization of a microelectromechanical system (MEMS)-based intraoperative monitoring system for improving lumbar surgery safety. A MEMS pressure-sensing module is designed and incorporated into a nerve root retractor tip to directly monitor pressure exerted on a nerve root during a lumbar surgery. Animal experiments are conducted for intraoperative pressure...
This paper introduces a multi-rope hoist wire rope tension on-line monitoring system, which is used to monitor the tension of multi-rope hoist wire rope in real time, thus to calculate the real hoisting load and tension difference. This system can alert and avoid accidents such as severe tension imbalance and over loading. In addition, this paper analyses reasons of tension imbalance on the basis...
This paper mainly studies the application of synchronous lifting technology in the bridge lifting. The wireless sensor network is installed in the bridge to serve as low-cost alternatives to commercially available cable-based measuring and monitoring systems. Due to the unavoidable sensing noises and the uncertain perturbations in the hydraulic systems, Kalman filter is adopted to reduce the measuring...
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