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The first thing to remind is that the judicial industry discussed in this article is mainly based on courts, procuratorates, bureaus, and bureaus of justice. Therefore, discussion of selection will also be centered around detention centers, detention centers, drug rehabilitation centers, courts, procuratorates, and prisons. Other areas will not be studied in depth for the time being.
The first level: policies and regulations
"No rules no standards"! In any place involving personal safety and high confidentiality, verbal restrictions are far less serious than serious legal effects. However, due to the large number of departments in the judiciary and the different functions of each department, the focus of the technical protection system is also different. Li Wei, product manager of the legal industry in Tianjin Tiandi Weiye Digital Technology Co., Ltd. introduced: “Prisons, detention centers, and detention centers are mainly detainees. The main focus is on system applications such as surveillance systems, access control systems, alarm systems, perimeter systems, emergency command systems, and fenced power grid systems; the main prosecutors and courts are mainly involved in trials and trials and require that surveillance systems must be able to synchronize audio and video recordings throughout the process. Each location is very different from the product selection."
* Bureau
Since the “hide and seek†incident in February 2009, detention centers have placed greater demands on the importance of surveillance systems. “See it clearly and save it†became the most basic requirement of the detention center surveillance system. In 2010, the Ministry of Public Security issued the "Construction Regulations for the Detention Center Monitoring System" and proposed specific parameters and layouts for cameras, pickups, storage devices, control and display playback equipment, transmission networks, and management software selected for the detention center monitoring system. The normative requirements. The supervision department of Chengdu Detachment Management Depart- ment and Technical Department Gango made a number of attendance at the detention center monitoring system and summed up the results of such selection: the illuminance of the color rifle should be less than or equal to 0.12 Lux, and the illuminance of the color dome camera should be less than or equal to 0.3 Lux. The horizontal resolution is greater than 480TVL, and the signal-to-noise ratio is less than 50Db; and the camera should adopt the H.264 or MPEG-4 video encoding and decoding standard, and the resolution of certain important areas should reach 4CIF. At the same time, Gan Gong said that most products sold on the market are relatively easy to meet this requirement. Therefore, there is a large selection space for depot product selection. Only a few models with day/night conversion function are required to be installed on-site to carry out daylight and daytime operations respectively. Contrast at night, test its day-night conversion, noise control and other performance, compared to select better after the effect, do not want to covet well-known brands.
For the purchase of the office room door, Gan Gong emphasized: “The cell door serves as the first line of defense for the detainees who manage the caretaker. Its purchase criteria are strict. In December 2010, the Ministry issued the “GA526-2010 The “gate†industry standard clearly specifies the technical requirements and inspection rules for the gates of the detention center, and the gates of any detention center are required to bid and participate. The brands participating in the products must meet the standards of their laws and regulations (the details of the specific rules can be self-checked on the Internet).
In addition, the perimeter grid is a very important perimeter line for detention centers. In conjunction with the National Standardization Administration, the AQSIQ issued the “GB25287-2010 Perimeter Prevention of High Voltage Grid Devices†standard in November 2010, replacing the original * industry standard. The GA247-2000 Perimeter High-voltage Power Grid Device provides detailed regulations on the technical requirements, tests, and test methods for guarding the perimeter of the detention center for high-voltage grid installations (the details can also be searched online).
prison
Relative to *, the relevant policies for prison selection are somewhat thin. Qiu Liangnan, general manager of Guangzhou Skynet Security Technology Co., Ltd. and member of the Fifth National Standards Committee, told the author that the state's publicly-written regulations are the “Prison Construction Standards†that are required to be implemented in 2011. They specify in detail the technical protection systems that prisons must build, including monitoring. , access control, alarms, perimeter systems, etc. However, for specific products and technologies, no specific technical indicators or specifications have yet been formed. This has also led to confusion in the entire prison market and infrequent product participation.
Second pass: close to the needs
Even so, there are more manufacturers that have introduced products that are compatible with prisons. According to Li Huan, Solution Manager of Zhejiang Dahua Technology Co., Ltd., Dahua has customized front-end camera to back-end intelligent analysis and platform software for prison applications. For example, according to the practical requirements of the prison cell, production area, ventilation area, etc., a 700-line infrared riot hemisphere camera, a 3 million-pixel infrared high-definition riot hemisphere camera, and a 1.3 million-pixel infrared high-definition gun are introduced; at the same time, the entrance to the prison and the fence are targeted. The megapixel high-resolution master-slave tracking intelligent high-speed dome camera was introduced in the wide area of ​​the perimeter and activity area; in the back-end applications, the mature 960H HD DVR equipment and network hard disk recorders were introduced; in addition, for intelligent analysis applications, It also introduced a back-end intelligent video analysis application based on server platform, which can analyze the code stream of network equipment, detect scene changes, cross the alert line, enter the alert zone, leave the alert zone, in the alert zone, cross the fence, and detect defects. , legacy inspections, moving inspections, and fast moving items protection to meet the prison environment.
Procuratorate
In fact, the technical protection products of the Procuratorate and the courts are similarly less selective in terms of policies and regulations. Only the Supreme People's Procuratorate in 2008 issued the "People's Procuratorate interrogates duty suspects to implement the whole process of simultaneous audio and video recording technical work (for trial)" (referred to as "work flow") and the People's Procuratorate interrogates duty suspects to implement a full-range synchronized audio and video recording system. The Construction Regulations (Trial) (referred to as the “Construction Regulationsâ€) specifies the selection reference and hard indicators from the front-end, transmission, control, and record display equipment, thereby standardizing the procuratorial organs interrogating job-related suspects for the implementation of full-range simultaneous audio and video recording. jobs.
For buyers, in addition to product related certification, and through the assessment of industry regulations, how to choose the applicable brand in these dazzling products is the key. According to Guangzhou Tianwang Qiu, “Product selection is the key to the application of the industry. Both in terms of scientificity and practical users, they should be emphasized: applicability, accuracy, stability, and convenience as much as possible. Sex."
Li Wei, legal product manager of Tianjin Tiandi Weiye Digital Technology Co., Ltd., talked about the judiciary's selection of the front-end camera of the largest technical defense system-monitoring system: “Prison, detention center, detention center, court, procuratorate, etc. Location selection of cameras is very different. Prisons, detention centers, and detention centers belong to high-risk areas. The use of front-end equipment must be riot-proof, and hemispherical equipment must be used inside the building to prevent prisoners from hanging up using the designed stand. Courts and procuratorates now require high-definition products for product selection.†In addition, there are many details required in various fields.
* Bureau
When talking about the product requirements of the intercom system, such as the police station and the detention center, Dai Yuanbing, the engineering and technology manager of Shenzhen Lebang Technology Co., Ltd., talked about: “First, the system must be stable; second, the traditional analog system has become powerless, like traditional video tapes, CD-ROMs. Such as susceptible to the impact of the record carrier, a large number of data, inconvenient to query, can not be remotely transmitted video, case information is easy to tamper with, the criminal suspect's transcript information and recording information does not match, resulting in frequent occurrence of confession, so choose digital, information The networked system can completely avoid these situations.†For example, IP network intercom can realize network transmission and digital storage, and the data can be easily transmitted and carried conveniently and can be permanently saved. In addition, the network intercom can also monitor and monitor in real time. Audio and video synchronization, real-time alarm, easy installation. â€
prison
As the country’s penal enforcement agency, prisons are responsible for penalizing and rehabilitating criminals, preventing and reducing crimes, and maintaining social harmony and stability. They also have to deal with cumbersome production and life issues. Liang Cong, director of the Judicial Industry Department of Guangdong Pyramid Information Technology Co., Ltd., believes: “Prison technical protection systems must have functions of 'supervising, controlling, managing, checking, looking, and using' to predict and respond to various types of unexpected events in advance.†Among them, Liu Xu, a senior consulting engineer of Suzhou Keda Technology Co., Ltd., combined with the practical experience of the integrated management platform for prison applications for many years, also summarized the following several product purchase opinions.
Practice in Court Procuratorates
1. Prisons are more sensitive to alarms as high-risk areas. This requires manufacturers to have higher rates of false alarm rates, smart analysis accuracy, camera clarity, and device stability. reliability. This is illustrated by the more important monitoring and perimeter systems in the system.
Camera. Tian Yimin of Xinjiang Wusu Prison Command and Control Center took his own Wusu prison as an example. “We have a total of 500 cameras in the prison. The cameras need 24 hours of work and keep running for 365 days. Therefore, the requirements for the products: First, the maintenance cost. To be low, can work reliably for 7*24 hours for a long time; Secondly, for image retrieval and viewing convenience, the image storage quality must be above D1; the network transmission delay can be less than 1 second to meet the demand.â€
Li Huan, Solution Manager of Zhejiang Dahua Technology Co., Ltd. added: “The front-end equipment in the Shicang warehouse is the first choice for anti-riot and wide-angle lens cameras, so that it can meet the monitoring of no dead ends in the warehouse.â€
Perimeter products. Guangzhou Tianwang Qiu Zong said: “Prison perimeter warning (intrusion detection). There are two points of concern: the first demand is the rigor of prevention, and then to prevent leak alarms and never allow prisoners to cross the detection area. No alarm occurs; second demand and product stability. Perimeter products must have few false alarms and can work reliably in various climates for a long period of time. For example, if the shell of the perimeter is made of ABS material, then it is in the sun. Exposure is very easy to age, and then 'stop cooking', if using PC material, even if the car was hit or subjected to a huge impact, it can still be intact."
2. The relevant products used in the system should have a certain degree of advancement. Priority should be given to selecting mature technologies and maximizing investment returns so as to avoid obsolescence of the overall performance due to outdated technology and premature elimination;
3. Because there are many prison security subsystems, each security subsystem needs to be integrated. Therefore, each security device needs to have the ability to provide secondary development interfaces for integration, in order to facilitate the realization of various security devices on the integrated security management platform. Integrate and enhance the comprehensive security level of prisons;
4. As the country’s penal enforcement agency, product safety and confidentiality are particularly important. The selected vendors are usually mainstream manufacturers with a certain scale and have many application cases in the prison industry. The products they provide usually require the improvement of their security mechanisms. It has a high level of security and has a test report issued by a national authoritative testing agency.
Procuratorate/Court
Han Fengzhan, product manager of Zhejiang Dahua Technology Co., Ltd. emphasized: "Because of the special nature of the judicial system, its technical protection system focuses on the safety and stability of the system. Therefore, in addition to satisfying the Ministry of Justice's mandate on product selection, the product selection is mandatory. In addition to the requirements, there are also very high requirements on the effect of the product itself and its operational stability."
Court digital interrogation system: There are no special requirements for the front-end camera and monitoring equipment, but it is necessary to meet the image definition and monitor effect. Therefore, high-definition cameras and high-quality monitoring equipment are often used. For the back-end interrogation host and management software, the There are high requirements: For the characteristics of the judicial interrogation process is not reproducible, the importance of audiovisual data in the trial process, etc., in addition to the audio and video processing capabilities of the interrogation host itself, stability and low power consumption have become important technical indicators. Compatibility of CD-ROM drive compatibility, dual-disc synchronization recording and hard disk backup remediation and other factors are also important reference indicators for selection of the host to be interrogated.
Combined with the business characteristics of the judicial interrogation process, audio and video, stability, and versatility of optical drives are equally important. Most of the current industry audio samples for audio are still around 16K, and the audio quality directly determines the effectiveness of audiovisual data as evidence. For example, Dahua uses CD-quality audio effects to serve the judicial interrogation process; in addition, the repetitive nature of the interrogation process imposes stringent requirements on the stability of the interrogation host. Embedded devices use their advantages of stable operation, low power consumption, and portability. Is the best choice; CD-ROM drives are consumables, in addition to hard disk video recording can be remedial measures within a specified time, but also for the versatility of the optical drive also put forward higher requirements, can be used in any computer.
Conclusion
In addition to hardware product selection, users have the most troublesome issues. In the interview, users generally reflected today's integrated management platform. The systems have not yet achieved true linkage and integration. Therefore, integrating the integrated management platform of all subsystems is their most important need. If the front end sends an alarm signal, the system can automatically pop up the image of the alarm, and automatically close or open the access control. It can integrate the business management systems of various judicial departments and become the most demanding software product in the judicial industry.
When it comes to the R&D aspect of hardware products, the user's opinion is even more “a basketâ€: the front-end camera plus smart analysis module and the perimeter fence products have their own drawbacks, and they urgently need new products to enter... There are even novel camera energy-saving ideas: Xinjiang Uk The prison Tian Yimin suggested that manufacturers can integrate camera pick-ups + infrared devices. When no sound is detected and infrared does not detect any activity information, the camera can be standby and send to the DVR signal at the same time to stop the video storage, thereby saving storage space and improving the life of the camera.
It seems that companies want to make more sophisticated products, the user's voice must not be ignored, manufacturers blindly develop higher-pixel, higher-definition camera, it is better to listen to the user's views, the details often determine the success or failure!
Judicial anti-technology product purchase will stabilize two levels
The quality of the system is related to the double standards of software and hardware. Reasonable software system architecture with the right products can play its full role. Among them, the criteria for a reasonable system architecture is whether it meets the needs of the actual situation; and the proper products not only refer to the quality, whether they meet the requirements, and whether they are designed in combination with the specific environment, but also the scope of their investigation. So, for the judicial industry, what are the policies for product purchase? An integrator who has years of experience in judicial projects will give us what kind of purchasing experience?