Development of Getting Up Detection and Report Device
Kazuo Haruyama, Kanya Tanaka · Journal of Life Support Engineering · 2010
In this tutorial paper, we introduce the getting up detection and report device which can be installed in middle-small facilities and ordinary houses. This device combines a mat sensor which detects rising and a power line communication(PLC) device as a reporting system. This device does not need any additional construction for installation as long as facilities equip electric power supply 100V for ordinary businesses. However, this device had some problems with the mat. The slight bump between the floor and the mat causes probability of stumbling or falling for elderly people who have troubles in their walking. In addition,it might lead to the wire disconnection when they step heavily on the mat. So, we have developed the getting up detection device with an ultrasonic radar, which is safe, cheap, and break-proof. However, if there are many patients in a ward, it is difficult to use some ultrasonic radars. The reason is that if some ultrasonic radars, which have the same frequency, are used in same ward, the ultrasonic signals are coherent with eachother. To solve this problem, we propose a novel incoherent method. This method is achieved by improving the software in the device at a low cost.