As a very important part of the prison security system, the surveillance system plays a non-negligible role in the security of prisons. The monitoring system occupies most of the overall investment budget. According to Chen Zhaobing, the solution manager of Zhejiang Dahua Technology Co., Ltd., “The Zhejiang, Shanghai, Hubei, Yunnan, and Qinghai provinces already have some prisons for the construction of high-definition systems. In the latest tender projects, there are fewer pure HD systems. This is mainly reflected in the SD+HD combination, but we believe that in the second half of this year or next year, high-definition surveillance systems will be used in large-scale prisons."
Two big problems: storage and data security
The application of high-definition monitoring brings the pressure of network bandwidth and video storage space first. Therefore, it is critical to improve the network infrastructure and design the system architecture. According to Zhejiang Yushi Sun Jiajun, “The network infrastructure of some prisons carrying security systems is very simple. Many prisons have no network connection from inside the prison wall to the prison’s general office building, or the network system is relatively elementary, and they cannot afford large-scale monitoring systems. Image scheduling applications, which is also a big issue in the popularization of HD applications."
In addition, if the monitoring system architecture is not properly selected, it will also affect the stability of the system's operation. The lack of reliability of surveillance video storage will also affect the playback of key videos, traceability of major events, and evidence search. According to industry reports, these problems are common in many prisons. At present, most of the prisons still use the modular combination system of the DVR and the matrix. These modular combined systems are usually unable to expand smoothly, and there are great deficiencies in the reliability of video storage, management and maintenance functions of the system, and emergency command functions. Security issues for surveillance video data. Due to the large number of DVR products deployed in early prisons. On the one hand, the DVR device does not support RAID protection. If a certain disk fails, the video content on the entire disk cannot be recovered. Moreover, DVRs are piled up in the sub-monitoring center or duty room of the prison. The sub-control center does not have a standard room environment, and it is easy to cause frequent DVR failures. These are the obstacles in the process of high-definition monitoring applications and must be handled with care.
Application Key: Reasonable Architecture and Design
The current application of high-definition surveillance in prisons is still in its infancy, said Li Wei, product manager of interrogation supervision at Tianjin Tiandi Weiye Digital Technology Co., Ltd.: “The application of high-definition camera products such as 720P and 1080P in prisons is still at a preliminary stage, mainly applied at the gates. Channels and other key venues. There are no large-area HD products in the premises, activity areas, etc. This is mainly due to factors such as network bandwidth, system architecture design, data security, and cost considerations.â€
As a security-sensitive industry, prisons place great emphasis on the stability of security products. Although the quality of high-definition surveillance images is very moving, if the entire network system is unstable, prison users will often not rush to adopt. The key to winning the high-definition prison reform lies in the "soft power" of the network structure and design of the entire monitoring system. On the basis of stability, the deployment of high-definition cameras depends more on the actual needs of users for monitoring systems. Many users will ask when they come in contact with security vendors: "Does the prison need to deploy all HD systems?" Considering the cost and the prison security budget, it is usually determined by the circumstances. Sun Jiajun, Minister of Prison Development Department of Zhejiang Yushi Technology Co., Ltd. introduced: “There are two types of prison surveillance sites, one is the monitoring of outdoor locations such as public places and perimeters, and the other is a large number of internal monitoring of housing units. The area is usually about 10 square meters, so the monitoring point (the prisoner) will not exceed 10 meters. This is obviously different from the city security monitoring. The monitoring head of the urban security monitoring generally needs to monitor the monitoring range of more than 100 meters."
Therefore, for the open area outside the prison, walled perimeter monitoring, in order to better monitor results, users will try to choose high-definition monitor. The use of a D1 resolution camera for the room is sufficient to fully meet the requirements of the prison. On the one hand, the range of indoor monitoring is relatively small, and the distance between monitoring targets is very close. A small 10-square-meter room is equipped with two or three D1 cameras. In addition, prison officers on duty are very familiar with the prisoners under their jurisdiction. Generally, the prisoner's profile can be judged immediately.
Two big problems: storage and data security
The application of high-definition monitoring brings the pressure of network bandwidth and video storage space first. Therefore, it is critical to improve the network infrastructure and design the system architecture. According to Zhejiang Yushi Sun Jiajun, “The network infrastructure of some prisons carrying security systems is very simple. Many prisons have no network connection from inside the prison wall to the prison’s general office building, or the network system is relatively elementary, and they cannot afford large-scale monitoring systems. Image scheduling applications, which is also a big issue in the popularization of HD applications."
In addition, if the monitoring system architecture is not properly selected, it will also affect the stability of the system's operation. The lack of reliability of surveillance video storage will also affect the playback of key videos, traceability of major events, and evidence search. According to industry reports, these problems are common in many prisons. At present, most of the prisons still use the modular combination system of the DVR and the matrix. These modular combined systems are usually unable to expand smoothly, and there are great deficiencies in the reliability of video storage, management and maintenance functions of the system, and emergency command functions. Security issues for surveillance video data. Due to the large number of DVR products deployed in early prisons. On the one hand, the DVR device does not support RAID protection. If a certain disk fails, the video content on the entire disk cannot be recovered. Moreover, DVRs are piled up in the sub-monitoring center or duty room of the prison. The sub-control center does not have a standard room environment, and it is easy to cause frequent DVR failures. These are the obstacles in the process of high-definition monitoring applications and must be handled with care.
Application Key: Reasonable Architecture and Design
The current application of high-definition surveillance in prisons is still in its infancy, said Li Wei, product manager of interrogation supervision at Tianjin Tiandi Weiye Digital Technology Co., Ltd.: “The application of high-definition camera products such as 720P and 1080P in prisons is still at a preliminary stage, mainly applied at the gates. Channels and other key venues. There are no large-area HD products in the premises, activity areas, etc. This is mainly due to factors such as network bandwidth, system architecture design, data security, and cost considerations.â€
As a security-sensitive industry, prisons place great emphasis on the stability of security products. Although the quality of high-definition surveillance images is very moving, if the entire network system is unstable, prison users will often not rush to adopt. The key to winning the high-definition prison reform lies in the "soft power" of the network structure and design of the entire monitoring system. On the basis of stability, the deployment of high-definition cameras depends more on the actual needs of users for monitoring systems. Many users will ask when they come in contact with security vendors: "Does the prison need to deploy all HD systems?" Considering the cost and the prison security budget, it is usually determined by the circumstances. Sun Jiajun, Minister of Prison Development Department of Zhejiang Yushi Technology Co., Ltd. introduced: “There are two types of prison surveillance sites, one is the monitoring of outdoor locations such as public places and perimeters, and the other is a large number of internal monitoring of housing units. The area is usually about 10 square meters, so the monitoring point (the prisoner) will not exceed 10 meters. This is obviously different from the city security monitoring. The monitoring head of the urban security monitoring generally needs to monitor the monitoring range of more than 100 meters."
Therefore, for the open area outside the prison, walled perimeter monitoring, in order to better monitor results, users will try to choose high-definition monitor. The use of a D1 resolution camera for the room is sufficient to fully meet the requirements of the prison. On the one hand, the range of indoor monitoring is relatively small, and the distance between monitoring targets is very close. A small 10-square-meter room is equipped with two or three D1 cameras. In addition, prison officers on duty are very familiar with the prisoners under their jurisdiction. Generally, the prisoner's profile can be judged immediately.
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