After continuous development, the security monitoring system has developed from three stages: traditional analog monitoring system, semi digital monitoring system and full digital monitoring system. The development of the third stage is more humanized and intelligent. The intelligent video monitoring system adopts image processing, pattern recognition and computer vision technology. By adding an intelligent video analysis module to the monitoring system, with the help of the powerful data processing ability of the computer, it filters out the useless or interference information of the video picture, automatically identifies different objects, analyzes and extracts the key useful information from the video source, and quickly and accurately locates the accident scene, It is a full-automatic, all-weather and real-time monitoring intelligent system that judges the abnormal conditions in the monitoring screen and sends out alarms or triggers other actions in the fastest and best way, so as to effectively carry out pre-warning, in-process processing and timely evidence collection afterwards.

Intelligent monitoring system -- Shenzhen monitoring installation

For the application of intelligent monitoring system, the relatively simple understanding is:

Relationship with people and things

It is mainly concerned with the recognition and monitoring system, including face recognition, license plate number recognition, vehicle type recognition, ship recognition, traffic light recognition and so on. The key requirement for the application of recognition intelligent video surveillance system technology is the recognition accuracy. For example, license plate number recognition is well done in the market, with a recognition rate of more than 95% or even 98%, which can better meet the needs of road monitoring customers. If the recognition rate is lower than 90%, it will bring great trouble to managers. Identification technology is often used in road monitoring, financial banking, channel management and other industries, mainly to provide customers with identification records and hierarchical management basis.

Intelligent monitoring system vehicle monitoring -- Shenzhen monitoring installation kejiada
Relationship with human and object trajectory

At present, there are many subdivisions, mainly including virtual warning line, virtual warning area, automatic PTZ tracking, number statistics, traffic flow statistics, appearance and disappearance of objects, sudden running of personnel, sudden gathering of personnel, etc. In addition to quantity statistics, this technology generally judges a process. Once an abnormal situation is found, such as someone entering the warning area and someone gathering quickly in the northeast corner of the square, it will send an alarm message to remind the on duty monitoring personnel to pay attention to the corresponding hot area. For quantitative statistics technology, the key technical point is to find abnormal conditions and make quantitative statistics on abnormal conditions. Therefore, the accuracy of statistical data is required to reduce the error as much as possible. The technology of motion trajectory recognition and processing is greatly affected by the actual monitoring application scenario. The key of such technology is to find anomalies as soon as possible, avoid omissions as much as possible and improve the accuracy of prediction. At present, such functions are mainly used in safe city construction, commercial monitoring and other industries.

Intelligent monitoring system cultural relic monitoring -- Shenzhen Abosin
Relationship with video environment
The environmental impact mainly includes bad weather such as rain, snow and fog, low illumination at night, camera occlusion or offset, camera jitter, etc. The application of intelligent video monitoring system technology can realize more normal monitoring function in bad video environment. When the video is unclear due to environmental impact, find the person in the picture as soon as possible, or send an alarm after judging the camera offset. The key technical point of this kind of function is that it can stably output the information of intelligent analysis in various applications, so as to minimize the impact of the environment on video monitoring. Such functions have universal adaptability, and more than 80% of monitoring points have potential needs to add such functions.