At present, presented a new round of prison security system construction, has become a new focus in the security industry attention. Orgasm is different from the last round of construction, the construction technology is more complex (a large number of application number, IP, intelligence analysis, software platform and other high and new technology), the impact of a wider (each subsystem in the system, business system and technology system integration, and the lower mass connected to the Internet, etc.), social awareness higher (" hide-and-seek "event happened in recent years, escape from prison events cause social attention) marked characteristics. As a starting from the mid - 90 into the prison security system of the construction of the practitioners, the author witnessed and participated in the system from analog to digital technology, now the development of the large-scale application of integrated information technology, the following will be combined with the practice of these years and recently thinking about some ideas about prison security construction.
Prison security system construction should be the fundamental purpose of improving the prison safety, enhance the management level and efficiency, namely by security system construction "to science and technology to safety", the ultimate goal of "to science and technology to the police". Therefore, related technical system, the principle of product design, project design, project implementation and evaluation, acceptance criteria shall be built around this purpose.
Construction principle 
Purpose, product selection, design, project implementation principle is established. Party a should know "selected only", however, only can improve the prison security and management is the best. Therefore, the product is the latest technology, the most advanced should not be a matter of priority, only if they have a combination of a stable, reliable, economical and practical conditions and in accordance with the above goal is the chosen object (these elements should be the same new product development should follow the important principle). Otherwise, even if the product function is rich, but to run of malfunctions, or complex operation, or do not conform to the actual application requirements, after the completion of such a system is not increase trouble, waste of forces are the result of the end face is abandoned. As keen prison security system construction of the heat of large integrated management platform for involving a large, complex software and hardware technology, especially in the current transition phase of a project often to integrate multiple different brands, different technologies such as system of real cases, it is easier to appear afore-mentioned problems, more should cause manufacturers, engineering business, and attaches great importance to the construction unit.
Focus on core requirements, the pursuit of simple and easy to use
From the perspective of reliability design, the important way to achieve stable and reliable system is as simple as possible, it is also suitable for the prison security system design. , of course, this is not mean design easier, it puts forward higher requirements on the designer, in essence are more difficult to, only in fully grasp system technology, the application requirements and environmental conditions, such as case is likely to achieve the complexity is Jane. System is only as simple as possible more stable and reliable, are more convenient to use. Only to ensure the safety of the prison system itself and reliable; Can only be the prison management system itself is convenient to use real impact rather than just a gimmick, a modern decoration. In modern information society, the product technology is more and more complex, but the user interface, use more and more concise, namely "fool", this is a kind of trend, we even say that on the premise of meet the demand of the core, the more simple the more advanced.
Become passive to active
Prison security system often contains hundreds, thousands of cameras, although in theory can be made of these cameras to the condition of point to point, but due to usually adopt round tour display mode caused by the "blind area" and the personnel on duty in the face of these long-term massive video image and the visual fatigue, it is often difficult to guarantee the real-time found abnormal situation, monitoring and control system only after the analysis of the passive role, make spent building the role of the prison security system to prison security. Therefore, the research and development and can be adopted for later analysis of prior intervention, active prevention, predict and prompt the abnormal situation of "proactive" type technology products have very important meaning to prison security. The current many manufacturers invest a lot of research and development of power technology and products in this field, such as intelligent analysis technology and products, audio alarm system linkage, etc.
System technology development trend and application of hot spots
The prison security system technology in hd, the direction of intelligent, digital integration, network, the core technology is computer and network technology. At present has formed, intelligent analysis technology, digital high-definition application system integration of the three major hot spots.
Hd application
As high-definition cameras and a sharp fall in the cost of the large capacity hard disk, hd products begin to enter the prison security system construction. Predictably, the prison security system construction will be extensive use of hd products.
Intelligent analysis technology
Commonly used in prison intelligence analysis technology with face recognition, staff around, cross the line, and gather the video image intelligent recognition technology, the analysis of the main rules or more mature class people cross the line analysis technology, staff assembled hovered, this kind of fuzzy analysis needs relatively specific environment can have a good recognition effect and practicability is not high, still face recognition technology is relatively mature, the main can be used in AB in personnel management.
In addition to the intelligent recognition technology based on information of video, also can use intelligent recognition technology based on audio information. The author takes the lead in research and development success of audio alarm system in the enterprise through the analysis of monitor indoor abnormal sound linkage audio and video, electronic maps, received a significantly lower after a batch of prisons installed detainees because fight, fight to injury to the effect of residual eents, the early warning and disposal of forward, immediately stop.
The digital system integration
Prison security system including audio and video monitoring system, detainees intercom, access control systems, perimeter alarm system, patrol system, integrated wiring system, etc. Ten several subsystems. Currently, the subsystem are mostly run independently, information cannot be Shared. In case of emergency, the system can't, not from the scene of the video images, voice, instant, multiple perspectives, such as intercom intuitively to understand event site condition, failed to play the role of early warning and ChuJing fast and efficient; Later also through information sharing and associated hard fast search, check the related record information, reduces the working efficiency. So the digital system integration technology, can realize the unified management of the subsystem and the linkage control of the integrated management platform arises at the historic moment. But the integration should be paid attention to keep the subsystems can run independently, to prevent problems due to network failure or adjacent system and management system to paralyze the influence each other and even the whole system. And should not be one-sided pursuit of rich and add some no platform function must function or linkage, lest trifles affect system operation speed and stability, in order to improve the reliability of the system.
Mature technical bottleneck
High-definition monitor image transmission, storage reliability problems
Larger prison security systems on the number of cameras and huge amounts of reliable transport and storage of the information is still the main bottleneck restricting the hd monitor.
Due to cost constraints, security system USES the reliability of the storage device is not the best. On the other hand, as a result of large-scale management platform and large-scale network system is complicated, and a large number of immature software and hardware products put into use, also makes the system affected the reliability of data storage; Hd video image monitoring system based on network for data transmission, should be given due consideration in the design planning network bandwidth, prevent data transmission bandwidth bottleneck jams, cause the loss of data transmission; Network should also be considered when necessary disaster redundancy, backup measures, ensure the reliability of the system; When equipment type selection, also can choose front-end temporary storage function, network cameras and backend storage devices such as NVR point storage function, choose a double front-end ports at the center of the data processing equipment (NVR, streaming media server, center management server), will be the front camera, easy storage and infected computers on a network segment separation of client management.
System equipment maintenance and management issues
To make the prison security system the normal operation of the 24 hours for a long time, must do system maintenance, the maintenance work, timely discovery system failure or hidden dangers and ruled out in time. But the prison security system is composed of many subsystems, and the equipment type and quantity of deployment is various, simply by manual inspection, prone to found not timely, the testers, and so on and so forth, affect the normal operation of system.
At present, some comprehensive management platform software by configuring the application server, to regular monitoring of each subsystem of equipment, abnormal, the video is missing, disk failure, video stop, network congestion, such as equipment off-line condition monitoring, alarm and record, help users to find and solve problems in time, guarantee normal operation of system, play a role.
The prison security system construction matters needing attention
Prison belonging to high-risk places, combined with the new features of the construction of the prison security system construction should be the most reliable technology, best products, choose the best project. Construction of a project, should pay attention to the following questions.
The system design
Must first understand and familiar with the business process, prisons for a professional study of application of special demand in, make the system function is really close to the line needs; Recommend and use mature, reliable technology and product vendors and users are should stick to the principle of. In the plethora of all kinds of new technologies, new products today is particularly important, because there is no "back" prison security, once the chance of an accident, there is no remedy, be human life or major responsibility, can give a prison and related leadership, the parties bring huge impact and losses, and even to bear criminal responsibility. Therefore, must be careful, must keep in mind the fundamental purpose of system construction.
At the same time, the redundancy design should be adopted, the system in addition to meet the needs of the prison is used currently, also need to consider the future system expansion and transformation, such as computer room and control room space, cabinet display, input, output, equipment capacity, the capacity of a storage device, pipe, groove space, backup lines and so on. The understanding of the performance of equipment, cannot use the limit value of equipment, such as: use 70% of the rated power output UPS, the protection distance between the probe and don't use to limit... Conditions permitting dual backup equipment should also be considered.
Choose the contractor
Prison security system usually contains more than ten subsystems, optical, mechanical and electrical, computer, communication, network, software and so on almost all aspects of the modern information technology, and the particularity of high-risk places and prison, the prison security system natural become most complicated in security system, the highest technical content, the most demanding, the most difficult construction project. Therefore, the choice of the contractor is very important, because of the complicated technology system of project construction, manufacturers provide hardware and software products can be semi-finished products, only through the contractor work can truly become a finished product system available for practical application. Especially in contains more large-scale management platform, system integration projects, can choose to strong technical strength, experienced, responsible and stable technical personnel of the contractor may even play a decisive role on the project construction. Some project became a beard, and even housing project, the main reason is not necessarily the solution or equipment problems.
Project implementation
There are a few problems need to pay special attention to.
1, the lightning protection
Prison buildings are constructed in the wild hillside or open place, whenever the thunderstorm season, are vulnerable to lightning hazards, the design and implementation of lines should consider when multiple lightning protection, lightning protection products with reliable quality. For those who because of geographical conditions, the prison by lightning, often can suggest users around the prison install the lightning rod.
2, rat
Due to the prison held the number is more, more, life rubbish and leftovers generally exist problems, the rodents to the reliable operation of the security system brings great harm. Project implementation, the laying of cables must seriously consider rat problem, placing equipment room, rat design must be done. Mice to the destruction of the system is likely to lead to paralysis of the entire security system, must cause enough attention.
3, waterproof, moistureproof
Especially the security equipment installed in the outdoor, must pay attention to make waterproofing and moisture-proof measures. Rain can through the way such as gap, lines and wall leakage into the device, and this effect is often need through the accumulation of a period of time will appear, serious problems arise, equipment often has been unable to use, even beyond repair.
4, the engineering construction
Must send experienced engineering and technical personnel, in strict accordance with the project management, construction management regulations, carry out the construction. Should be ready before construction deepening design, technical clarificaiton, clear the scope of work and the work is responsible for personnel. In the approach should also be ready before the construction technology, construction safety training and related regulation of prison education and training. The daily work plan to communicate with the responsible personnel. Approach to delivered the goods such as mobile phone, camera before construction personnel on duty, can't bring him into the prison. Construction should strictly abide by the provisions of the prison, when the time and attention. Construction in the designated area during construction, absolutely can't communicate with detainees (language, gestures, etc.). Construction is completed, must be packed tools, bring him into the prison, out of many, failed to install wire, equipment need to be out of the prison. Construction of the wire, waste of trunking, line pipe, leftover material must be clean, even a tiny screw can never left. Each process completes the installation of the related records, quality inspection records. Construction personnel must do a good job in secret do shouldn't look at the watch, shouldn't ask don't ask, dont speak do not speak, not moving. Due to working time only about 6 hours a day, and the necessary approval is generally not in the evening to work overtime, in such a short work time, under the condition of strict, more need to reasonably arrange the construction unit construction plan, choose excellent construction management personnel.
After-sales maintenance
The prison security system is a complex information system integration project, after the completion of the system can truly play a role, depends on whether to provide reliable and efficient after-sales maintenance services for a long time. Is the key response speed and processing power and must have a certain number of backup devices. System is completed, usually after-sales maintenance work, the contractor shall be responsible for the system whether the contractor has enough familiar system technical condition of the stability of the after-sale maintenance and technical personnel and the technical personnel will cause great influence to after-sales maintenance, built using improvised construction team project maintenance work will be a big problem. At the same time, based on the particularity of the prison security system, such as fault equipment repair is not allowed in the practice of system is recovered to normal function, in addition, the system's hard disk failure can not send out maintenance, these all need to have adequate backup equipment to do support.
conclusion
Prison security system construction should remember increase safety management according to the purpose, use mature, reliable technology and products, choose excellent contractors (a stable team of design, construction, maintenance and technical personnel, standardize the management of construction on the system construction and the long-term normal operation of the chamber of commerce) play a critical role, completes the after-sales maintenance of the system. To "science and technology to make the system construction is to be safe", "to science and technology to the police".
