By using these instruments, the elderly can measure blood pressure and electrocardiogram non-invasively, and the measurement results representing vital signs are automatically forwarded to the personal electronic medical records of the intelligent pension service center, and the system provides 24-hour automatic entry service. 2. Intelligent network platform for the elderly: With the customer's electronic medical records, both the elderly and their children can remotely log on to the intelligent network platform for the elderly, and inquire and pay attention to the health status of the elderly at any time. The platform can also provide a series of health information and other nursing services, such as health guidance, diet guidance, fitness guidance and so on. In addition, the network platform will also provide online entertainment, such as audio news, audio-visual entertainment, comic sketches, red songs and movies, medical care and so on. 3. Intelligent national unified call telephone for the aged (400-1818-200): Answer emergency calls 24 hours a day, provide services at any time, timely process the rescue information sent by the client, provide necessary health information and location information for the emergency center, and coordinate the treatment. When an accident happens, press the emergency rescue button on the watch, and the watch will be automatically connected to the overseas Chinese sub-health service center. The customer service staff of the health service center will immediately contact the relevant emergency units (such as 120, 1 10, etc.). ) and the emergency contact person of the customer, and provide the real-time location and health status of the customer, so that the customer can get timely and effective assistance. 4. Intelligent data security for the elderly: for the background database, a safe and thorough backup scheme is adopted in file storage, and Dell high-end server and raid0 technology are adopted, which has disaster tolerance function to ensure the stable and normal operation of the system; The network is connected to the 6M enterprise broadband provided by ISP service provider, and the hardware firewall is used to access the internet network, so as to protect the system security and avoid virus intrusion. Page login adopts encrypted verification code to prevent repeated login and violent login; Perfect authority management and information security settings, for logged-in users, all members who can log in must be members who have passed the 400 telephone manual real-name authentication of Overseas Chinese Sub-health Service Center.