From 2018, Seoul, South Korea began to promote the implementation of the "security management program for vulnerable groups of the elderly", install Internet of Things equipment in the elderly's homes, and take care of and serve the elderly in daily life through non-face-to-face ways. Relevant personnel can monitor the data collected from the elderly's home in real time through the Internet of Things equipment. Once the human body movement is not perceived within a certain period of time, or the temperature, humidity, lighting and other conditions are abnormal, the system will give a warning, and the staff will immediately identify the situation and take countermeasures. Seoul plans to expand the coverage of the program to 16000 households by 2025. In order to improve the life satisfaction of the elderly, Seoul has also formulated the Comprehensive Welfare Plan for the Elderly, which will invest 1.4 trillion won by 2025. Germany is one of the most aging countries in the EU. It is the key direction of the German government's aging work to carry out the age-appropriate transformation of ordinary housing. There is such a typical reconstructed building near the residence of the reporter in Berlin. The exterior can still retain the historical style of a hundred years ago, but the interior of the building shows the humanistic care of modern society everywhere: the entrance steps have been transformed into gentle slopes, and some have also been installed with electric lift tables to facilitate the access of the elderly with inconvenient legs and feet; The stairs are equipped with handrails and anti-slip strips suitable for the height of the elderly to prevent the elderly from falling down and getting injured; The originally narrow and dark corridor has been widened to more than 1.2 meters and installed with voice control lamps and floor lamps to provide lighting for the elderly at any time. Inside the house, relevant German institutions have designed toilets and washbasins that can be automatically lifted and lowered to facilitate wheelchair users. The kitchen has also undergone a similar transformation. Both the cabinet top and the garbage can have been adjusted to the height suitable for wheelchair users. At the same time, the stove monitoring equipment with automatic fire shutdown function and one-button alarm device have been installed. There are more than 17000 people in Lanshancho, Saitama Prefecture, Japan, and the elderly population over 65 years old accounts for 1/3 of the total population. Lanshan Garden was opened in 1996, and is one of the oldest local pension institutions. In order to prevent the elderly from falling down and falling into bed, Lanshan Park previously placed the carpet sensor in front of the bed. When the elderly got out of bed and stood on the carpet, the sensor could sense and notify the nurse on duty, but this way could not perceive the risk of the elderly turning over and falling in advance. In order to more accurately grasp the state of the elderly, such as lying in bed, turning over and getting up, Lanshanyuan decided to carry out intelligent transformation and upgrading of relevant equipment, and adopted the "nursing bed intelligent perception system". The system is equipped with load sensors on the four support legs of the nursing bed, which can continuously sense the stress of the support legs and transmit relevant data to the computer of the nursing station. The associated software can intelligently analyze the eight different states of the elderly, such as lying still, turning over and sitting up, according to the stress changes, and make a prediction of the possible fall, fall and other situations, and give an early warning in advance. (Xinhua News Agency)