Human fall detector based on wireless communication and GPS positioning
Wen Ji · Applied science and technology · 2014
In order to reduce the physical and psychological hurt of falling tof the elderly which caused by falling,and to achieve the timely rescue,the authors design a practical human fall detector is designed. Using The detector acquires and transmits data of human motion by triaxial acceleration sensor and ZigBee wireless communication to realize data acquisition and transmission of human motion,,and detects fall using by the detection algorithm based on acceleration vector amplitude and human attitude angle detection algorithm to realizeapp: addword: realize fall detection,. And with the alarm unit,the detector realizes SMS alarm based on GSM module,and displays geographic information of the fall event on Google by analyzing GPS data. the alarm module based on the SMS alarm of GSM module,analyzing the GPS data to realize the Google display of the geographic information of the fall event.The experimental results show that the detector's discriminant accuracy rate is 100% in the circumstances of the body lying flat after the people fell forward,and not lying flat after fell forward,and that lying on his /her side after fell to the righton the body lie flat after falls forward,lying on his side after fall to the right and don't lie flat after fall forward is 100%. The experimental results also and prove the detector have has a good monitoring interface.