Safe City and Xueliang Project Plan

Industry： public safety 22

For urban roads, public squares, urban-rural junctions and key locations, build a video surveillance network covering the entire area to support public security prevention and control, emergency command and grassroots governance.

1. Industry security needs and pain points

Safe City and Xueliang Project are security applications with the widest coverage and the largest system scale, involving the collaboration of multiple departments such as public security, political and legal affairs, urban management, and transportation. Compared with a single park or building project, its complexity is reflected in:

Large coverage: Points range from hundreds to thousands, distributed on roads, squares, back streets and alleys, and at the interface between urban and rural areas, with complex cascading networks.
Difficult to share online: Different system manufacturers built in different batches have different protocols and standards, making cross-department access difficult.
Difficult to guarantee online rate: The front-end environment is complex, the power and network conditions are poor, and it is difficult to detect and repair the equipment in time after it goes offline.
Insufficient operation and maintenance strength: There are many points but limited operation and maintenance personnel, and there is a lack of systematic inspection and fault closed-loop mechanisms.

2. Construction Goals

Key public areas are fully covered, forming a video network with "full area coverage, full network sharing, full-time availability, and full controllability".
Realize cross-department and cross-level video resource sharing and authorized access.
The online rate and video integrity rate of key parts meet the standards, and faults can be monitored, orders can be dispatched, and the loop can be closed.
Supports integration with bayonet, face, vehicle and other data to serve actual security prevention and control and emergency command operations.

3. Overall system architecture

Front-end perception layer: Classified configuration by point - Class I points (key parts) use high-definition dome cameras and face capture cameras, Class II points (primary and secondary arterial roads) use high-definition gun cameras and ball cameras, and Class III points (back streets and alleys) use economical infrared cameras.
transport network layer: Video private network bearer, core-aggregation-access three-layer architecture, dual-link redundancy of key nodes.
Platform and storage layer: Central platform unified access management, distributed storage expansion on demand, and double backup of important points.
Application and operation layer: Real-time monitoring, video review, intelligent analysis, and one GIS map, supporting the operation and maintenance platform to achieve a closed loop of assets, work orders, and assessments.

4. Point classification and equipment selection

Point level	Typical scenario	Recommended models	Key requirements
A type of point	Government agencies, squares, hubs	HD ball machine + face capture machine	High zoom, clear face, double backup
Class II points	Main and secondary arterial roads, commercial streets	HD infrared gun camera + ball camera	Ultra wide dynamic range, low illumination, stable online
Three types of points	Backstreets, alleys, urban villages	Economical infrared waterproof machine	Controllable cost, easy to install and maintain
urban-rural interface	Access to the city	Bayonet capture + fill light	Number plate recognition, working around the clock

5. Core functions and business value

Global visibility: GIS visually presents point distribution and online status on a single map, making it clear where there are problems.
Resource sharing: Standardized access and authorization mechanisms, breaking down departmental barriers and avoiding duplication of investment.
Intelligent actual combat: Face comparison, vehicle deployment and control, abnormal behavior analysis, turning passive verification into active early warning.
Operation and maintenance closed loop: Automatic inspection, fault dispatch, and repair confirmation leave traces throughout the entire process, and the online rate can be quantified.
Smooth evolution: The modular architecture supports batch construction and later expansion, and the initial investment continues to maintain value.

6. Implement delivery and service guarantee

Cooperate with the competent departments to carry out demand surveys and point surveys to form a hierarchical and classified construction list.
Develop unified technical standards and access specifications to ensure interconnection and interoperability in multiple batches of construction.
Construction will be promoted in different regions, with priority given to completing key parts and access routes to and from the city.
Establish an operation and maintenance system: asset ledger, inspection plan, fault response time limit and assessment indicators.
Provide long-term technical support and spare parts guarantee to support the stable operation and continuous expansion of the system.

7. Typical configuration suggestions

It is recommended to build in batches in the order of "key points first, then general, first main trunks and then branch roads": the first phase covers first-class points and access to the city to form a skeleton; the second phase expands second-class points and main roads; the third phase completes back streets and alleys and urban-rural junctions. The storage adopts a distributed architecture to expand capacity on demand, with double backup of the first-class point recording. In terms of operation and maintenance, it is recommended to configure a full-time team and introduce automatic inspection tools, and include online rate into assessment indicators to ensure long-term availability of the system.