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System for monitoring and fall detection of patients using mobile 3-axis accelerometers sensors

This paper describes system for monitoring and fall detection of patients using triaxial accelerometer together with ZigBee transceiver to detect fall of patients. The system is composed of data acquisition, fall detection and database for analysis. Triaxial accelerometer is used for human position traking and fall detection. The system is capable of monitoring patients in real time and on the basis of results another important parameters of patient can be deducted: the quality of therapy, the time spent on different activities, the joint movement, etc. The system, including calibration of accelerometers and measurement is explained in detail.