Safety and security issues are emerging in the modern society where is increasing 1 person household. Most single person households are in their 20s and 30s. They show a pattern of life that leave the house in the morning and enter in the evening. It happens all the time that stranger enters the house or leave the house without turning off the gas stoves, boilers, TV, and other electrical appliances. Especially, as internet shopping penetrates into every day, numerous parcels or delivery arrives at home. And these daily factors are a safety issue for 1 person household. As the use of smartphones has become popular, there is an increasing tendency to use smart devices for security, home appliances, and healthcare that can be linked to the smartphone.