Prison - Monitoring Web Copywriter: Pu-ice ?Advisory Tel :029-81870056 029-81870069 029-88850267 ?Website: http://www.kxddz.cn/ ?Address: 216 South Road, Xi&#39;an Jia Tianguo Taibai International Building 1, Room 1903, 19th floor Detention and prison reform criminals is a place where detainees are not easy to manage, security is the first protection; to protect the safety of the community, but also to protect the safety of prison staff and detainees of the security and stability. By installing the monitoring alarm equipment, can effectively strengthen the management to serving personnel, intuitive 及时 key locations reflect the site conditions, boost security 措施, modern prison management is a powerful tool. With the computer technology widely used in all walks of life, the rapid development of computer hardware and software equipment to digital video surveillance equipment have reached the practical application of the prison monitoring system requirements, and are gradually put into practical in. Cable Transmission through the new co Monitor System effective integration of computer technology can effectively enhance the sentence personnel management, reducing unforeseen circumstances occur, digital video surveillance equipment can be directly timely reaction of the key locations scene situation, 增 强 security measures , is an important means of modern management the prison. Cell control For those with high risk of prisoners, their activities need to monitor in real time and completely; Yifang accidents, to protect himself and prison in the safety of others; use of monitoring alarm systems, Tong Guo installed cameras inside the cell, All of the cell can be real-time video, audio video, prisoners in the cell can record all activities, including; also on the cell through a remote control center to monitor, to achieve real-time video when unattended. Public places In the prison-house, canteen, hall, playground, workplace and other public places are relatively concentrated in the areas of prisoners, because prisoners were in mixed, often prone to various exceptions, relatively small in the prison context, to ensure that all public places within the staff, facilities security, there must be some measure of security alarm monitoring, through the monitoring system can effectively monitor these situations and near real-time video, through the alarm system that can arise when non-normal, in time to the prison management section of the alarm signal to a timely manner to deal with various non-normal. Prisons around the door Around the prison and the door is connected with the outside part of the prison, escaped detainees are often the place, through monitoring, alarm system, can effectively ensure that these areas and re-engage in care of the safety of personnel, and can effectively cope with the prison guard staff interaction, to prevent detainees escape acts, and can prevent outsiders from entering. Care personnel working and living area To ensure the security and stability within the prison is responsible for the management of detainees is responsible for prison security guards and police officers, charged with important tasks, their security is to ensure prison security and stability of the overall top priority, by monitoring the alarm system, care staff work area set up control room, less in the case of guards, all prison effectively have complete control of the situation in order to respond in a timely manner; by working and living area in the custody of officers set up surveillance alarm devices, can effectively care personnel to ensure the safety of the whole prison security and stability in future. Second, the system design principles 1, nature, economy: the selection of the monitoring and alarm system equipment excellent, fully functional, stable performance, the entire system in a long time will remain within the advanced level; the same time, in line with economic and practical, stable and reliable principle, give full play to the maximum effectiveness of the system. 2, Stability: a complex surveillance system, its stability is essential to avoid crashes, offline, can not control or recurrent abnormal phenomenon. 3, Security: For a system, its internal and external security is also very important, should have the password, multi-level control level, withdrawal of fortification level; operator privileges can be divided into system settings, super users, Attendant, etc. a variety of system control, alarm time should be recorded and sharing. 4, for convenience: The operation should be simple and flexible, easy to learn the characteristics of the operator can easily carry out the use and maintenance. 5, expansion, upgrade and integration to facilitate: the system leaves ample room for easy future expansion, upgrades and integration. Third, the basic form the system The system includes monitor, monitor and broadcast three subsystems. Of which: Video surveillance subsystem: Managers at all levels can be achieved under the network of all or part of the prisons, the production area, outside the control region, and the external perimeter of the prison environment in the region live video monitor and digital video systems, and long-term preservation. Monitor Subsystem: Management staff to achieve real-time monitoring of prisoners, and monitor the content can be recorded, and long-term preservation. Radio Subsystem: Managers at all levels can achieve the network under the supervision of all or part of the broadcast area, and the broadcasting system is not affected during the monitor and the monitor functions. The system network architecture has three major layers: the network main control center, various management point of sub-control center, monitoring and management point. Monitoring and management point: Set up surveillance cameras at various points, listeners and broadcasting equipment, cable transmission system equipment with a total transmission of all signals. Sub-Control Center: internal and external control, production department, alarm processing center and guard towers and other management In the dormitories / duty room production areas, inside and outside the tube, watchtowers, alarm processing center set points control points, all regions of the management control system equipment by the scope of the jurisdiction of the prison officer and, internal network Diaokan historical record . Network control center: DVR system set up in the main control center, TV monitor wall system, broadcasting system management equipment, administrators can monitor the network for all control points and all points in the sub-system control, to achieve all the functionality of the system design. Set in the monitoring command center, connect and control all hosts on the network under the same master rub less flexibility to expand the master level; another over control of the host as configured, the network can also be connected between the host computer. Concrete design systems 1 point for each monitoring a specific implementation plan Room surveillance monitor surveillance Each room in the prison setting a camera on the monitor to conduct a comprehensive indoor surveillance monitoring in each room to set up a listener first, on the inter-room to listen in order to keep abreast of the activities of detainees; installation of radio equipment that can staff to achieve their education, propaganda and broadcasting function; can be installed in each monitoring indoor smoke detectors to prevent the prisoners who took the opportunity to create chaos in the prison room. Housing surrounding monitoring alarm monitoring Monitoring room in the entrance stairs, etc. to install a full head cameras used to monitor the situation of all access persons; the same time place in a corridor, the corridor ends of the installation of a fixed camera is used to monitor the situation within the corridor . In some of the more important parts of the design button alarm point. Monitoring alarm in public places In the prison cafeteria, auditorium, playground, work space, the closed room, the space under the occasion, set a certain number of cameras, these non-normal prone to constantly monitor the occasion; and in these occasions, set the number of key areas The push-button alarm point to an accident happen on these occasions, to send out warning signals in time. Prison, the prison door and around the monitoring and alarming Prison is a prison door with the outside world where, in this setting for several cameras, and out of prison officers on the monitor from time to time; and sentry point guard in the prison gate to set up a push-button alarm point; in prisons around the wall and the corner area set a number of major focal point of camera surveillance, and with infrared light, all-weather 24-hour surveillance on these points; and around the prison walls, set up radio active infrared alarm, guard against through here and out of prison staff activities. Care personnel office and living premises alarm monitoring In the prison guards, armed police office, living all around the entrances to install a fixed camera; in a corridor where both ends of the installation of a fixed camera; the same time according to user requirements in the designated office on each floor were installed full- PTZ cameras or three Kam detector (for example, warden&#39;s office, the financial room to set foot pick-type alarm button in the personnel file room, arms room to install a passive infrared detection devices), this setting can guarantee the room key monitor key , deployment, monitoring, deployment of the system after the invasion, if people are reported to the police. Other places According to customer demand, the more important place in the monitor alarm set points. 2, sub-system handles the specific design A total of cable signal reduction equipment, system for system restore audio and video signal output to the Quad, through 16 under the jurisdiction of the screen on the monitor area; A sub-controller to realize the area of each point for large-screen switch, the controller on the front of the mirror control points to control and electric cloud radio address. 3, the specific design of the network control center system Establishment of a digital video disk system, the control point for all digital audio and video signal recording and long-term preservation; Set up TV monitor wall system, with a large audio and video matrix 24 and a large screen monitor for system control and switch back and forth to achieve any of the screen to any one monitor to monitor; The establishment of the master radio and the electric mirror control system goes through the controller on the front of the radio broadcast monitoring point cloud mirror rotation control and electric control Fourth, the characteristics of cable transmission control system Currently, most of the TV monitor using video-based band still point to point transmission, each camera points to the control room needs to layout a set of video cables, power lines and control lines, dozens of television monitors on the camera points will form a large bundle of cables. Moreover, the video baseband signal is 50Hz to 6MHz low-frequency signal, will be 50HZ AC power line electromagnetic interference, therefore, point to point video transmission, power lines and video cables can not be laid with the pipe with the tank, which the between the need to add steel or steel tank isolation shield. In addition, the coaxial cable transmission of baseband video signals increasing transmission distance with the clarity of an image is decreased, the general transmission over 300 m, the image sharpness will be reduced to intolerable levels. Common Cable TV monitor for monitoring transport network, and Beijing Zhongtian Technology Electronic Technology Co., Ltd. products use many years of experience and maturity of RF carrier frequency modulation and demodulation technology, computers and control technology, carrier frequency network technology, R &amp; D a &quot;total control cable&quot; transmission network products. Total cable television transmission control technology (hereinafter referred to as total control cable) transmission technology in the traditional control based on a technological innovation, representing a period of monitoring transmission technology for future development direction, there are many traditional techniques can not monitor the transmission of new features However, traditional monitoring technology is still dominant in certain areas, will and common cable monitoring exist for a longer period, the following discussion of a total of five cables from the scope of monitoring. First, the number of monitoring points The number of monitoring points on the transmission technology or conventional monitor cables with a total control plays a decisive role, the traditional monitoring transmission technology is in the back of each camera to connect up to four cables, one video cable (transmission of video signals), a control cable (transmission Zoom PTZ control signals and signals), an audio cable (transmission monitor signal), a power cable. In addition to power, the other three cables must enter the host computer rooms, with 20 monitoring points, 800 meters distance transmission project as an example, the traditional monitoring technology up to 60 cable laying, cable total length of 4.8 km, the high cost of acquisition of cable ; laying cables number and size of large amount of heavy construction difficult; laying costs; unsightly; difficult to repair, overhaul. If the use of cable monitoring technology, need to add the corresponding modulation equipment, modem equipment, signal amplification equipment and control equipment, need for additional equipment. Because of a coaxial cable inside the monitor to allow simultaneous transmission of video signals 20, control signals and audio signals, so just lay a cable, the total cable length of 2 km, the purchase of cable cost is very low, significantly lower levels of acquisition cable costs; laying cables is simple, construction difficulty; laying low cost; the system appearance; easy maintenance, repair. If the control points are few, the price of conventional monitoring techniques have obvious advantages, is not difficult to construct a total control of the program need to configure the cable-related equipment, high cost, traditional monitoring technology for such an occasion. To three monitoring points is 300 meters distance transmission project as an example, the traditional monitoring technology up to nine cable laying, cable length up to 2.7 kilometers, the purchase of cable cost is not high, the laying of cables in small quantities, is not difficult to construct, maintenance, repair more convenient. If the use of cable monitoring technology, to lay a 300-meter cable, but need to add the appropriate equipment, increasing equipment costs greater than savings in cable costs. As can be seen from the above cases, the traditional point monitoring techniques applied to monitor the transmission bit less total control cable monitoring point and apply more transmission. Based on our accumulated experience in construction, the proposed monitoring points or more in 30 projects, with a total cable construction monitoring program; on 6 of 30 monitoring points, it should be a concrete analysis of specific issues, monitoring of 1 ~ 6 points project, proposed by traditional monitoring technology. Second, transmission distance Traditional control methods suitable for transmission distance is 300 meters, the limit distance of 500 meters can be transferred, installed after the amplifier can transmit 800 meters, but because of the added amplifier noise amplification, while the system, and very high frequency attenuation, resulting in the image spectrum distortion, can not guarantee image quality. Appropriate monitoring of cable transmission distance is 2000 meters, to meet the needs of most users, the ultra long-distance monitoring, can be used the way cable + cable together to build a total of HFC distance transmission systems to address control signals within 100 km of two-way transmission problem. Therefore, more than 500 meters transmission distance is less than 3,000 meters of the demand, for a total cable monitoring technology. Within 500 meters of transmission can be monitored by conventional techniques, can also be used to monitor common mode cable. Third, anti-jamming With the continuous development of modern civilization, the increasing variety of high-power electrical equipment, electromagnetic interference more and more, so much of bad electromagnetic environment, the interference frequencies are 45MHz or less, the traditional use of video-based surveillance with Li Yong Tong Axis 0 ~ 6MHz cable to transmit the image signal bandwidth is fully used within the interference band, poor anti-interference ability, therefore, prone to interference image twill, textured, snow and ghosting, seriously affect the image quality. Of the image move by cable to the monitoring of more than 49MHz high-frequency carrier transmission, completely avoid the common interference frequency, so anti-interference ability. Therefore, in the electromagnetic environment of harsh environments for cable monitoring system. 4, system expansion Expansion of conventional monitoring techniques need to re-wiring, construction workload of the larger construction difficult, long construction period, construction on the surrounding environment easily affected Wei Jie Jue construction impact on the surrounding environment, often require a number of Zhunbeigongzuo Zuo, often Daozhi Party starts on time or even abolish the delay in expansion plans. If the use of cable monitoring technology, will produce different results. 30 monitoring points is still 1000 meters distance transmission projects, for example, because of cable monitoring technology to allow simultaneous transmission in a 20-way coaxial cable required within the signal, the system installed two coaxial cable, 30 Way in the transmission of existing Based on the required signal can be increased by 10 signals that the addition of 10 control points, in addition to increasing front-end equipment and, as appropriate, increase the engine room of the demodulation equipment, without adding other devices, expansion does not require re-wiring. Total cable monitoring system expansion construction workload is small, construction difficulty, short construction period, construction had no effect on the surrounding environment. 5, wiring difficulty In high-rise buildings, cable will enter the shaft, fixed on the bridge, often laying shaft other various uses cable, the electromagnetic environment has become more complex, easy to control technology transfer of traditional base-band signal interference, heavy monitor bales of signal transmission difficult for long cable bridge and the construction is firmly fixed; has completed renovation of office buildings, research institutions, warehouses, residential and other places if the laying of large bundles of heavy damage control signal transmission cable is bound to have good fitting, construction difficult and not beautiful; to overhead or fixed in the wall of the occasion, heavy bales difficult to set up control signal transmission cable, fixed, right-angle turn, buckle PVC slot board. Not suitable for these occasions, the traditional monitoring techniques, monitoring programs should be a total cable. In addition, the lack of power or hard power cable laid under the circumstances, can take control of cable feed means within the camera and modulator for the front-end to provide power. In short, the total cable control for large systems, long distance transmission of various control signals, the system has strong anti-interference, wiring simple, easy expansion; traditional monitoring techniques applied to monitoring points less, the transmission distance is short, less peripheral interference, interference signal is not strong and does not require expansion (or a small amount of expansion) of occasions. ? From: Network ?