In order to alleviate the problem of empty-nester home care

combined with sensor technology

design and implement an elderly healthcare system based on ambient intelligence. The system is composed of two parts

which are data acquisition module with many types of non-invasive sensor and WEB module of healthcare for the elderly. Data acquisition module uses MODBUS protocol for data collection and data transmission by GSM network

and data storage and analysis are carried out through server. WEB module offer different system function modules to relatives

medical personnel and system administrators to help them provide better care services for the elderly. The test results show that the sensor data can be used to map the behavior of elderly and operation of system is stable.