Circuit Design of Intelligent Terminal Nursing Home System

An MSP430 microcontroller-based and NRF24L01+ RF wireless communications technology was raised and it can be used to design scheme of intelligent terminals of the circuit of the nursing home system.This system has realized following function:to distinguish the old person status,to localize and monitor their position and action outdoor,and make emergency call as their falling down or other dangeous situation.The electric circuit uses the modular design such as the power source administration madule,the core control module,the radio frequency wireless connection module,the module to guard against the old men following and the GSM correspondence and the GPS personal location modules.There are these five aspects to describe the entire circuitry hardware design.The experiment indicated that after actual debugging movement on line the recognition distance may reach as far as 100 m,and the system is easy to operate,stable and reliable in its practical application.