Intelligent video surveillance assists prison security

Intelligent video surveillance technology can only be used as an auxiliary means for daily monitoring in terms of the current level of development. Therefore, smart video surveillance technology cannot be used in place of manual monitoring. The significance of smart video surveillance technology construction is that it can monitor police from a large number of invalid images. Freed up and increased the discovery rate of events, providing convenience and basis for manual monitoring and subsequent disposal. The application of intelligent video surveillance technology in prison security is very popular.

With the growing development of prison video surveillance systems, the existing manual monitoring of this traditional model has been unable to meet the needs of public security prisons in the new situation. To complete the daily prison surveillance tasks, ensure the security of prisons, give full play to the role of video surveillance systems, and reduce the intensity of civilian police work, they can only develop in the direction of intelligent video surveillance.

Smart Vision Functional Requirements Structure

Below, according to several important monitoring contents, respectively describe the application of their respective intelligent system upgrades.

1. House/Monitoring Room

Surveillance in the housing is the most important daily task in the monitoring and management system of the prison/watching house. The “Intelligent Virtual Wall” technology can be used to monitor the doors, windows, fences, and front and rear patrol walkways; through the “high-limit warning”, it can effectively prevent suicide or other vicious events from happening or give early warning. In addition, through the "smart behavior analysis" technology, it is possible to give early warning of fighting, gathering, and abnormal behavior at night.

Monitoring needs: Can intelligently determine the time interval from the police departure from the duty room to the return duty room, prompt, record and count events that are smaller than the standard patrol time (can be customized), and the effective time is 17:00-6:30.

2. The office

Among them, the bolt range is 2/3 of the height of the toilet separation wall, the hemisphere is full coverage, the bolt can be used to enter the more alert line alarm, the dome is used to enter the bathroom alarm, the hemisphere and the bolt machine are used to make crowds Wait for the alarm.

3. Public recreation areas such as ventilation areas

Using intelligent analysis technology such as “Intelligent Behavior Analysis” technology and number statistics, when an abnormal crowd gathering phenomenon occurs, the system issues an early warning to prompt the staff to deal with it, effectively preventing the occurrence of bucket events; when someone falls or accelerates running, , it can also send an alarm automatically. Using the “stay and check-in” technique, when people in the vicinity of the fence are abnormally staying and paralysing, the system itself generates an alarm to prevent the occurrence of the escape from the prison.

Prison/Custodian entrances and exits, important passages and corridors: In conjunction with the access control system and the perimeter system, the monitoring of the "raises" and "sending supervision" processes has been stepped up. When the prisoners leave the building collectively, the speed and direction of the flow of the abortion are analyzed to determine whether there is any abnormal congestion and crowding. For key passages such as "a gate," "two gates," and "three gates," in prisons or detention centers, it was found that there were automatic warnings when a moving target passed, and that the staff were promptly found to promptly handle the matter. Real-time monitoring of the prisoner's movement trajectory and exact location; automatically counting the number of people entering and leaving the prison house entrances and exits.

Modern prison/watch-keeping management systems often also require the setting up of a "sentence management system", which can query and manage the data of each inmate. It is suggested that if it can be combined with intelligent video analysis technology (such as PTZ intelligent tracking technology, etc.), it can be more intuitive and real-time to understand the prisoner's action trajectory and the exact location of the present, more intuitive and effective than simple management through the IC card.

Prison/Containment Wall and Surroundings

The periphery of the prison/watching center and the entrance to the detention center are part of the connection between the prison and the detention center and the outside world. They are often places where detainees can escape from prison. Through monitoring and alarm systems, the safety of these places and the people who are in charge of the guards can be effectively ensured. Can effectively cooperate with prison / detention center guards to prevent prisoners from jailbreaking and prevent outsiders from entering.

The alarm subsystem of the prison/detention center usually includes an emergency alarm and help system (manual alarm buttons, active/passive infrared double alarm, sound and light alarms, police officers' offices set up in the prison area, duty room arraignment rooms, meeting rooms, medical personnel Offices, duty rooms, conference rooms and gun ammunition depots, financial office, cadre personnel files room, criminals archives room, key room) and perimeter alarm system (inside of prison/conservatory perimeter perimeter wall, 2 meters wide open warning along the wall With electronic alerting, active infrared alarms are used.

However, the infrared radiation alarm device usually has a high failure rate, a high false alarm rate, and is susceptible to weather, electromagnetic environment, and human factors. The electronic fence method also has high equipment costs, difficulty in installation and power supply construction, and aesthetic impact, and it cannot be used for issues such as crossing and overflight.

The "smart virtual wall" technology was used to warn the incidents passing through the "virtual wall" by cameras set up around the walls of the prisons/careties, which overcomes the shortcomings of the infrared detectors that could easily be misreported and have no intuitive images. When an intruding target crosses the “virtual wall” and triggers an alarm, the software immediately controls the PTZ camera or high-speed dome camera to automatically track the target, making it easy for prison guards to quickly capture intruders in complex environments.

About intelligent vision function

Intelligent vision monitoring is the use of computer vision technology to process, analyze, and understand video signals. Without human intervention, it automatically locates, identifies, and tracks changes in surveillance scenes through automatic analysis of sequence images. The analysis and judgment of the target's behavior can promptly provide an alarm or provide useful information in the event of an abnormal situation, effectively assist the security personnel in handling the crisis, and minimize false positives and false negatives.