Residential areas are distributed in all corners of the city, forming a single or multiple independent small areas, and the current number of residential theft, to the community security brings great pressure, technical means increasingly become the focus。

The perimeter environment of different communities is different, there are many blind spots in supervision, and the internal structure is relatively loose. It is often difficult to achieve comprehensive and effective prevention and management by civil air defense alone. It is an effective measure to use the perimeter security alarm system to implement 24-hour real-time monitoring and management of the perimeter area of the community。