Design Of Indoor Safety Monitoring Terminal For Solitary Oldies

The development of the world economy,society and culture has brought about the evolution of the population structure.With the increasing proportion of the elderly population,the model of population structure has gradually appeared "inverted Pyramid".In particular,under the impetus of the basic national policy of family planning,China has gradually entered the stage of aging.Now the number of only child family is more than before,in view of the situation that the old man has no one to take care of at home,it is very important to be able to master the daily life of the old man at the first time.The elderly group needs our concern.Their living conditions require real-time monitoring of professional equipment.Therefore,it is of great social significance and a broad market prospect to study the indoor safety monitoring terminal which can detect the daily activities of the elderly and ensure the daily safety of the elderly.Firstly,this thesis briefly describes the core of indoor safety monitoring system,wireless sensor network,and briefly introduces its core technology,ZigBee.The hardware devices of indoor safety monitoring terminal and indoor wireless sensor network acquisition node are selected and the circuit is designed to meet the functional requirements of the system.Secondly,aiming at the routing protocol algorithm that ZigBee technology needs to use in networking,we deeply study and try to improve the routing algorithm.For the fall detection part of the wireless sensor collection node,this thesis proposes a new fall detection algorithm to better monitor the abnormal fall state of the solitary old man.The software function of each part of the system is designed to meet the system requirements.Finally,the actual monitoring devices are distributed in various areas of the room to collect real-time data and identify anomalies.This thesis focuses on the experiment and analysis of the proposed fall detection algorithm and simulates,and compares the existing ZigBee routing protocol algorithm and the improved algorithm,and verifies its feasibility,accuracy and reliability.After the actual test,the monitoring terminal can monitor the living parameters such as cooking,water,movement and room location in real time,and detect the indoor temperature,humidity,smoke and other environmental parameters in real time.The indoor safety monitoring terminal of the old man in this study has the characteristics of low power consumption,small volume and strong concealment,which can meet the needs of the protection and safety monitoring of the daily privacy of the old man.