In the construction of intelligent cities, video surveillance systems are the core of the construction. It is an important component of the security technology prevention system and an advanced comprehensive system with strong prevention capabilities.

Video monitoring systemIt is the use of video technology to detect and monitor fortified areasreal-time display Recording on-site imagesElectronic systemOr the internet. By real-time monitoring, crime and unexpected events can be prevented, and potential illegal behavior can be deterred.

Video surveillance systems are widely used. In the field of urban security, it is spread throughout the streets and alleys, and can monitor the monitoring areatwenty-four24-hour uninterrupted real-time monitoring allows monitoring personnel to view the on-site situation at any time. For example, the traffic command center can see the traffic flow on the road in real time, and detect congestion and accidents in a timely manner，Assist in directing traffic；It is also used for public area safety, such as squares and parks, to ensure the personal and property safety of citizens.

Architecture diagram of monitoring center

The video surveillance system mainly consists of three parts: front-end equipment, transmission system, and back-end equipment.The front-end devices are mainly cameras, which are like human eyesCollect external signals.The transmission system is responsible for transmitting the signals collected by the front-end camera to the back-end devices. Mainly transmitted through coaxial cables，Generally, transmission is carried out using Ethernet cables, fiber optics, or wireless networks. The backend devices include storage devices, display devices, and management software. Storage devices (such as hard disk recordersNVR）Used to store video data for easy viewing in the future. Display devices (such as monitors) are used to display monitoring images. The management software can control the camera, such as adjusting focal length, angle, switching screens, etc., and can also set recording plans, replay recordings, etc.

Video monitoring systemfromtwentycenturyseventyYear toninetyIn the mid-19th century, closed-circuit television monitoring systems were the mainstayI have experienced itIn the era of analog video surveillance、In the era of digital video surveillance、In the era of intelligent video surveillanceUp to nowHigh definition development stage.From the initial key departments such as banks and the military, to the widespread adoption of security systems, and then to diverse scenarios such as urban management, transportation, and communitiesIt fully explainsThe close integration of video surveillance with social development and its increasing importance.