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Requirements and system composition of the detention center monitoring system
Specific requirements
(1) The monitoring of detainees includes: warehouses, prison corridors or stairwells, public activity areas, and perimeters;
(2) The monitoring of outsiders includes: interrogation room, lawyer interview room, family visit room;
(3) The monitoring of staff includes: entrances and exits (storage area door, prison corridor door, prison area door, interrogation room door, lawyer interview room door, family visit room door), patrol, and attendance;
(4) Provide convenient management methods for leaders at all levels: establish a computer network system, set up multiple workstations, and manage permissions to provide different functions for different permissions.
Ximark system composition
Establish a complete audio and video two-way transmission control system, install information collection and various terminal equipment at the front end, and establish a large-scale control center at the back end to gather all signals and perform unified scheduling. Furthermore, multiple sub-centers can be established according to actual needs and with the aid of a computer network. The system composition generally includes the following parts:
Ximark CCTV system:
Mainly for video signal acquisition and remote control. In order to ensure the safety of warehouses and enable police officers to see the activities of prisoners in warehouses anytime and anywhere, surveillance cameras are required to be installed in every warehouse. Due to the strict monitoring requirements of the detention center, the images of corridors, staircases, public activity areas, perimeters, and main entrances and exits need to be monitored in real time in the control center. Therefore, cameras need to be installed in these places for monitoring.
In terms of camera selection, vandal-proof fixed cameras are used in the warehouse, and fixed cameras or integrated cameras with pan/tilt are used outdoors and in public areas. A fast dome camera with more stable overall performance and faster rotation speed should be installed on the perimeter.
In addition, in order to respond to the requirements of multi-screen real-time monitoring and recording for future reference, the control background can adopt a combination of analog and digital processing methods. The system uses a large analog video matrix to build a TV wall for real-time monitoring, and multi-screens can be performed through the control keyboard. Loop monitoring and key monitoring, and can realize fixed-point tracking and image zooming in and zooming out of images with integrated pan-tilt cameras and fast balls. The storage, playback, transmission, query, and printing of image data are carried out on the digital hard disk video recorder, and a large amount of image data is stored on the hard disk array or tape drive through digital compression technology (MPEG-4, H.264). It is convenient for long-term recording, long-term storage and playback of image data for evidence collection.
Ximark alarm system:
Taking into account the limitations of video surveillance in certain specific environments, the alarm system should install alarm equipment in important parts such as the warehouse and perimeter, and be able to realize real-time detection of front-end alarm equipment in the main control room. And the system displays the location of the alarm points with sub-area indicator lights or electronic maps, accompanied by sound and light warnings. A riot-proof emergency button is installed in the warehouse. In case of emergencies and special requirements, prisoners can call the police on duty at the monitoring center or ask for help as long as they press the emergency button.
The perimeter alarm adopts two protection technologies. A high-voltage power grid is installed on the top of the fence, and an active infrared dual-beam detector is installed on the ground inside the fence. The alarm signal of each defense zone can be linked with the corresponding camera on the spot. Once an alarm occurs, the corresponding camera image will be automatically recalled and displayed on the console monitor first.
Ximark entrance and exit control system (access control):
Realize entrance and exit control and management by swiping card. The detention center is a place where prisoners are centrally detained. Therefore, door control and door access management have become an important part of the entire prison security system. The detention center requires the access control system to not only meet the general functional requirements of general access control systems, but also have more complete functions, such as one-way swiping (general access control functions), two-way swiping (requires all cardholders to swipe their cards when entering and exiting the door), Anti-passback (if a certain card enters the door with a swipe card, it sneaks out without swiping the card, the card will be prohibited by the system the next time the card enters the door, and the card is interlocked in and out), swiping linkage video (every swiping linkage video captures the card reader Face image, can effectively prevent others from embezzling legal cards to commit crimes, and ensure the legitimacy of card readers).
Ximark monitor system:
In order to further ensure the safety of the warehouse, image monitoring alone is not enough. Voice monitoring must be combined so that the police can control the real situation in the warehouse. Therefore, it is required to install monitors in a hidden place in the warehouse. Warehouse monitors correspond to warehouse cameras one-to-one, and the control center police officers can monitor and monitor a warehouse through audio and video synchronization. Similarly, the arraignment must also have a recording function, so that the image and sound can be simultaneously recorded and filed for investigation.
Ximark Broadcasting System:
From the perspective of scientific management, a complete broadcast system can fulfill all the above requirements for all activities, morning exercises, announcements and emergency broadcasts for ideological education of detained prisoners. The broadcast system should be divided into two parts— -Warehouse broadcasting and public area broadcasting. The warehouse broadcast shall have the function of single, cluster, zone, and all warehouse gating broadcasts. Public area broadcasting is mainly set up in playgrounds and perimeters, and district management should be implemented.
Ximark intercom system:
In order to make the management of the detention center more humane, two-way walkie-talkies can be installed in the warehouse. When the prisoner presses the emergency button, the police in the control center activates the intercom system to talk to the warehouse, providing conditions for emergency handling. In addition, in order to avoid supervision loopholes during family visits, the prisoner and family members can be separated by a glass wall, and the intercom system can be used to communicate to prevent possible problems caused by physical contact between the two parties. The intercom system must be able to provide recording functions.
Ximark patrol system:
Due to the particularity of the detention center, police officers are required to conduct day and night inspections of the warehouses and gates in the prison area. There are two types of patrol systems, offline and online. The offline type does not require wiring and is cheap and easy to expand, but it does not have the real-time nature of uploading patrol information. Online patrol information can be uploaded in real time, but it is more expensive and inconvenient to expand because of the need to lay cables. But whether it is online or offline patrol data, it must be able to be stored and queried, and various reports can be generated and printed.
Ximark Time Attendance System:
The electronic attendance function is an indispensable part of modern office. Therefore, it is required that the access control point of the office area can realize the attendance function. The attendance information can be transmitted to the central management host in real time, or temporarily stored in the access control controller. Attendance data can generate various reports and serve as proof of assessment.
In addition, we must also pay attention to the linkage and integration of each system. Nowadays, some integrated products have appeared. If the performance is stable, consider using them to make the system control more convenient and save the system cost.
Case study (take a typical detention center as an example)
A detention center has 100 warehouses, 5 interrogation rooms, 5 lawyer interview rooms, 1 family visit room, and 1 office building. The prison area is in a ring, with playgrounds and public activity areas in the middle, surrounded by high walls. The monitoring system planning for this detention center is required.
1. Warehouse: Warehouse monitoring is the focus of the entire project. It is necessary to ensure that the control center police officers can understand the activities in each warehouse 24 hours a day. Install two cameras crosswise in each warehouse to avoid blind spots. Use low-illuminance (0.1lux) black and white cameras with a horizontal resolution of 480 lines or more. It is recommended not to use pinhole or dome ceiling cameras. Because the camera and lens are combined, the amount of light through the lens is relatively small, which makes the low-illuminance performance relatively poor . Install two monitors at the place where the bed is placed in the warehouse or where the activities are concentrated, and bury them in the wall for concealed installation. Install an integrated machine of intercom, broadcasting, monitoring, and emergency button near the warehouse door, hands-free, anti-riot type. Hang a junction box outside each warehouse to implement unified power supply and line switching.
2. Public activity area: Police officers need to have a general understanding of the situation in the public activity area in order to fully grasp the situation in the prison area. Especially in emergencies, image data of public activity areas are particularly important. Due to the large area of the public activity area, a color camera with a 6x zoom lens and an omni-directional pan/tilt is used, and it has the function of automatic color conversion to black and white under low illumination. The control center can control the 360-degree rotation of the pan/tilt by manipulating the keyboard. Achieve a clear view of the public activity area monitoring. When there is an emergency, the target can be tracked and enlarged, and the action needs to be coordinated. In addition, broadcast points should be placed at appropriate locations in public areas, and high-power sound columns should be placed.
3. Entrance and exit of the prison area: including the entrance and exit at both ends of the corridor of each prison area and the general entrance and exit of the prison area. There is an entrance guard and a camera (with infrared detector) at each end of the corridor of each prison area. The entrance guard requires two-way swipe card, anti-passback control, and has the functions of swiping card linkage to capture and video. The general entrance to the prison area is the main entrance to the outside world. The most important thing is to install a fast dome camera (color) to monitor the situation at the entrance. When people enter and exit the door, the night lighting is better. It can be equipped with a high-definition, color fixed-focus camera (with infrared detector), and is equipped with access control, two-way swipe card, anti-passback control, and has swipe card linkage capture and video functions.
4. Perimeter: As the last line of defense for the detention center, it is the key to the surveillance system. The system sets up three lines of defense. First, install high-performance color dome cameras at each corner of the wall, and the dome is set with alarm linkage preset positions; second, on the ground inside the wall (approximately 2 meters from the wall), install two top and bottom cameras. For active infrared dual-beam detectors (the first pair is about 30 cm away from the ground, the second pair is about 40 cm away from the first pair), once triggered, the corresponding fast dome camera will be linked to quickly rotate to the preset position and start recording ; Finally, install a grid protection screen on the top of the high wall. The three lines of defense are activated at the same time, combined with air defense, and will surely be able to effectively prevent prisoners from escaping from prison.
5. Interrogation room, lawyer interview room, and family visit room: The interrogation room has two doors. The access control requires two-way swipe card, anti-passback control, and swipe card linkage to capture and video. The whole process of the interrogation requires recording and video recording, using a pinhole camera to face the prisoner, and installing two monitors, respectively near the prisoner and the interrogation officer. There is a door in the lawyer’s interview room, which is equipped with an access control and a camera. The access control requires two-way swipe card, anti-passback control, and swipe card linkage to capture and video. The family visit room has a door with about 5 seats. The prisoner and family members are separated by a glass wall. The access control requires two-way swipe card, anti-passback control, swipe card linkage capture and video. Each seat is equipped with a fixed-focus camera for fixed monitoring, and each seat is equipped with a two-way intercom system to provide recording function.
6. Office building: install access control for entering and exiting, one-way swiping card, the access control can also be used for attendance. Establish a computer network system to provide an environment for the management of the monitoring system at all levels.
7. Control center: It is the heart of the entire system, and its status is extremely important. Especially for detention centers with high safety performance requirements, the system is required to run very stably, and to respond to the first time when an alarm occurs. Because the monitoring system of the detention center includes many subsystems, the number of front-end information collection equipment is huge, and the back-end control is complicated, the construction of the control center must be of a certain scale, with an area of about 100 square meters, and the control center needs to be protected against lightning and shielding. There must be a good system grounding. The control center should install air conditioners, temperature and humidity sensors to ensure that the equipment has a good operating environment. In the control room, there are mainly a TV wall and a console. The TV wall is composed of dozens of monitors and a central rear projection display. The monitor group is used for real-time touring display of live images in the monitoring area, and the intermediate projection display is mainly used for Important image surveillance. The console is arc-shaped, equipped with 4 to 5 monitors, control computers and audio control equipment.
(1) Video matrix, its function is to switch the image output to the TV wall, and group all input images to realize loop display. The important images output from the matrix switch to the console monitor can be edited into a single loop sequence display. Under the keyboard control, the key monitoring point images are actively selected for monitoring, and the alarm linkage images are automatically monitored with priority. The main monitoring point images and alarm linkage images are stored in the hard disk video recorder, and recorded 24 hours a day, and the video storage period is seven days.
The system is also equipped with a large alarm host, which controls all front-end alarm point signals, and can arm/disarm single, or multiple, or sub-area, or all alarm points. The alarm signal is linked with video matrix switching, and the perimeter alarms are at the same time. Linked lights and siren. Video and alarm can also be integrated in software and control, so that the electronic map function that realizes the linkage of camera monitoring and alarm points, makes the monitoring and alarm display clear at a glance. .
(2) Warehouse broadcasting, intercom, and monitoring are integrated in one system. Each front-end warehouse device is coded and can be controlled by the keyboard according to the warehouse code. It also has a two-way recording function. The recording computer is placed on the console. The console is also equipped with earphones, microphones and other equipment to facilitate police operations.
(3) Access control, patrol, and attendance are also integrated in a system. The information is registered through the IC card, and then the information is collected by the front-end access control controller and transmitted to the management computer through the 485 line. The management software is responsible for IC card issuance and management, information processing, information classification and report printing functions.
Concluding remarks
The rapid development of science and technology has driven the continuous progress of the entire industry, and the criminal methods of criminals are also constantly changing. Only by making better use of advanced security products can crimes be prevented more effectively and the peace of society can be guaranteed.
For more related systems, please contact us:
Singapore Seamark (Beijing) Branch Sun Dong (Northern Regional Manager)
Room 514, Moma Building, 199 Chaoyang North Road, Chaoyang District, Beijing, China Post Code: 100026
Mobile: 13581807620 QQ: 81920843 MSN: [email protected]
Phone: 010-85982757 / 85989381/85986721
Fax: 010-85982757 / 85989381/85986721 ext. 803
Email: [email protected] Http://www.smartkey.net
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