Construction of Safe City Monitoring and Alarm System Based on Network

The purpose of the safe city monitoring and alarm system is to help the public security department to control and combat crime more efficiently and accurately by constructing an integrated, multi-functional and comprehensive security prevention and control network covering the entire city, thus ensuring the harmony and harmonization of the urban environment. steady development.

The safe city monitoring and alarm system has typical cross-regional, cross-industry, and cross-application characteristics. In terms of geography, the entire system involves the interconnection of grassroots police stations, district and county public security bureaus (sub-bureaus), and the three-level monitoring center of the municipal public security bureau. In terms of industry, its monitoring resources cover many scenes inside and outside the public security, including roads, security checkpoints, important units, key parts, public places, and fire protection, schools, communities, hotels, banks, industrial factories and mines. In terms of application, the system should complete various functions such as image monitoring, video playback, intelligent recognition, and alarm linkage, and realize integration with external systems such as CK alarm, 110/119 alarm, GIS, and GPS.

Because of this, networking is becoming a mainstream trend in safe city monitoring and alarm systems, because only network can meet the complex application requirements of safe city monitoring and alarm systems. It is precisely because of the network, the safe city monitoring and alarm system has more choices in the construction mode.

Judging from the actual situation of some built and under construction projects across the country, there are two main types of network-based safe city monitoring and alarm system construction models: one is self-built private networks, and the other is cooperation with operators.

In the self-built private network mode, the main body of investment construction and maintenance management is mainly the public security department. All public security internal monitoring resources are located in the public security intranet, and external monitoring resources are accessed through front-end analog docking or platform digital docking. In the cooperation mode with operators, the main body of investment, construction and maintenance management can be operators, and the public security department adopts the leasing method. To ensure safety, internal and external monitoring resources are also accessed separately. In essence, there is not much difference between the two construction models, and they are divided into internal and external systems. The difference is that the former has strong autonomy, while the latter has low initial investment.

Self-built private network mode solution

Due to the wide range of situations involved, the situation varies greatly from place to place. Therefore, the actual deployment of safe city monitoring and alarm solutions usually adopts strategies tailored to local conditions, and the network architecture is different. Among them, the three-level cascade architecture is the most typical and most common, as shown in the following figure.

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