With the growing development of prison video surveillance systems, the existing manual monitoring can no longer meet the needs of the public security prisons under the new situation of completing the daily prison surveillance tasks, ensuring the security of prisons, giving full play to the role of video surveillance systems, and reducing the intensity of civilian police work. Therefore, prison monitoring and management must be developed in the direction of intelligent video surveillance.
The functional needs of the prison's intelligent vision virtual wall, perimeter prison prison wall, is the most important lifeline of prison security, through video analysis technology, to enter the internal wall or over the wall behavior, as soon as it appears it must first capture the discovery, due to There are a large number of cameras deployed on the wall, and the external environment is complex and changeable. The accuracy of video analysis is very high.
Use scenario: Prison inner wall, perimeter.
In the daily management of illegally invading prisons, it is completely closed between 7:00 a.m. and 6:00 a.m. in the morning, and personnel are not allowed to move freely. According to the management of aisles and corridors, main roads, there are no people or vehicles. If there are people or vehicles during this period of time, Appeared, whether it is police officers or other personnel, all need to be monitored by police officers for the first time, and make judgments and deal with them accordingly. Through intelligent visual analysis technology, this abnormal behavior can be accurately captured.
Use scenarios: stairways, walkways, trunk roads.
At night, the main prison guards who have emerged from high security and centralized detention are required to pay close attention to their behavior. In the evening, due to the adjustment of the police force and the long time, it is necessary to pay close attention to the behavior of such specific prisoners. Through the video analysis system, attention can be paid. Its behavior of getting up, currently some prisons use the DVR's own motion detection function to handle the night shift analysis, because the motion detection itself only generates alarms for pixel changes, and can not conduct intelligent matching analysis between personnel behavior and rules, leading to false alarms. The rate is higher. Since many prisons currently employ double-valued posts and the number of people who wake up at night is too frequent, it is recommended to use night-time video analysis.
Use scenario: forbidden room, strict house, and high guard room.
徘徊 Long-term detention in prisons, such as toilets, storage rooms, or other sensitive locations. Some people spend more time staying and crouching. Smart vision analysis systems can identify the people who have simply passed through or stayed for a long time. Or vehicles, and pictures and videos of people and vehicles that have been overstayed, paralysed, and vehicles are cut out, and an alarm signal is generated to remind the on-duty police officers to pay attention.
Use scenarios: halls, walkways, bathrooms, washrooms, storage rooms.
The discarding of AB doors and the personnel's stay at the AB gate serve as the core import and export within the prison. Checking the entry and exit of personnel and vehicles is one of the important links in prison management. For the AB door channel, the disposal of various objects left behind is the core work content of intelligent visual analysis. According to the continuous analysis of 7×24 hours in the AB door, it can accurately discover in real time whether there are dangerous objects left behind and generate an alarm reminder.
Use scene: AB door channel.
Climbing According to the current prison environment, it is absolutely forbidden to carry out space activities beyond a certain height, such as high-risk acts such as destroying prison facilities or destroying at high altitudes, or hanging up and committing suicide. Therefore, ultra-high activities must be discovered in the first instance once they occur. At present, many prisons and police stations adopt the method of using cordon lines. Due to changes in the background light or the environment, simple cordon analysis can lead to a large number of false positives. Through multi-dimensional video analysis techniques, false positives can be significantly reduced.
