MONITORING SYSTEM AND METHOD USING LOCATION AWARE TECHNOLOGY

摘要

The present invention relates to a monitoring system and a monitoring method using multiple position recognition, the monitoring system comprising: a plurality of fixed transmitters for emitting radio signals and ultrasonic signals; It is carried by a monitoring target, receives a radio signal and an ultrasonic signal from the plurality of fixed transmitters, calculates a distance from each fixed transmitter by using a time difference between the radio signals and the ultrasonic signal received from each fixed transmitter, A portable receiver for determining its position based on the positions of the two fixed transmitters and the distance from these fixed transmitters; And a monitoring device configured to receive the location information of the portable receiver and manage a database of the location information of the monitoring target. According to the present invention, the position of the monitored subject is recognized as a single point based on the distance calculated from the plurality of transmitter nodes, rather than the position of the monitored subject as the region, so that the position of the monitored subject can be identified very precisely. There are advantages to it.;Monitoring, Location Awareness, Patient, Medical, Ultrasound, Sensor