According to the characteristics of key areas, combined with the existing monitoring engineering points, and according to the actual needs, the planning idea of "enclosure, supplement, connection and combination" is put forward:

1、 Encircle

As the name suggests, it is to surround the target area to form a closed circle. The first is to control all intersections entering and leaving the city, the second is to control all entrances and exits in the main urban area, and the third is to control the entrances and exits in local areas to ensure 100% effective coverage of the main entrances and exits, so as to achieve the goal of obtaining clear images for any people, vehicles and objects entering and leaving; Strive to achieve effective coverage of all incoming and outgoing parts.

2、 Connect

Control the entrances and exits around all key parts, key places and key parts, and connect them into lines and circles according to the distribution of surrounding cameras according to the main roads in the urban area to form multiple interrelated closed circles to ensure that moving targets can be captured for many times.

3、 Supplement

Supplement points for various closed circles: ensure that the target can reach clear coverage when passing through the closed circles of each layer, reasonably plan the overlapping closed circles of each jurisdiction, and avoid repeated construction, missing construction, etc.

Supplement points in the closed circle: mainly in the closed circle of the police station, supplement monitoring engineering points for classified key units, key places and key parts, especially in areas with high incidence of cases, select the camera type according to the actual situation.

4、 Combined
Integrate social resources, give full play to the auxiliary role of social resources in public security prevention and control, especially make full use of the video resources at the entrances and exits of closed key units, so as to form a strong supplement to the closed circles at all levels.