Because most of the rural areas are vulnerable groups such as left-behind elderly people, children and women, in order to ensure people's safety and improve villagers' self-protection ability and emergency handling ability, this set of "ten-household joint defense" alarm system has been established, and one household is in trouble and nine households are helped. When one household calls the police, it can immediately send out a distress message, and the other nine households will immediately receive the alarm and rush to the scene to deal with it. At the same time, the police situation will be automatically transmitted to the networked alarm center platform by parents' machines, so as to maximize the effectiveness of police-civilian cooperation. Take 10 households as a group, realize the joint defense of families, communities and villages, and realize the safe countryside.