Implementation of Prison Escape Monitoring System in Zitian Detention Center——On the application of RFID radio frequency technology in prison security management
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Beijing Zitian Huike Information Technology Co., Ltd. cooperated with the Judicial and Prison Administration and the Public Security Bureau to monitor the escape of prison inmates and detention center inmates, and developed a complete set of intelligent RFID inmate escape prevention product system, which was fully recognized and endorsed by prison user leaders. The system is divided into three parts: 1. Video monitoring part 2. RFID bracelet/wristband part 3. Unified monitoring platform. The following description takes the *** detention center project as an example.
1. Video surveillance network integration
(I. Overview
At present, the security supervision system developed by Beijing Zitianhuike Information Technology Co., Ltd. integrates the original monitoring systems of each prison (such as audio and video monitoring systems, office automation, etc.), combined with advanced video transmission technology, RFID radio frequency technology, in the institution Daily safety management has played an extremely important role. In addition, each detention center has used a supervisory information database information management system to provide data support for the national database of criminals and criminals, and improve work efficiency. In order to make the city’s public security supervision more scientific, informatized, and digitized, it is necessary to realize the networking of the monitoring system and the supervision information system of various supervision sites within the city, so that the supervision technology and the supervision information management technology can be integrated and used, which has become the current supervision information. The focus of chemical construction.
(2) System composition
The scheme design consists of three parts: one is the front-end signal acquisition system in the monitoring and alarm system; the second is the video recording, control, management and display system in the master control center; the third is the control, alarm, and display system of the network control terminal.
The front-end image acquisition system adopts various types of image acquisition equipment such as fixed black and white cameras, fixed color cameras, color omnidirectional dome cameras, color/black and white omnidirectional dome cameras, etc. according to the actual site conditions;
The recording, control, management and display system in the master control center adopts various control and display equipment such as matrix digital video system, network cluster management platform, and color flat monitor;
The control, alarm, and display system of the network control terminal is mainly composed of the detention center management information system-system integration software installed on the office PC. If the detachment or the municipal monitoring and command center wants to build a screen wall or projection wall, an IP digital matrix switching control host needs to be added, and the video images of all monitoring sites can be observed on the screen wall of the detachment monitoring and command center for unified command.
The main technical indicators of the required equipment are as follows:
(1) Network digital video server (16 channels)
Working voltage: AC: 220V±10% single-phase 50Hz±1Hz
Indoor working conditions: temperature: -5°C to +45°C, relative humidity: <90%, grounding resistance: <2 ohms
Video format: PAL format
Compression standard: H.264/MPEG-4 video compression algorithm and OggVorbis audio compression technology, etc.
Compression method: hardware compression
Image resolution: CCIR601 format (720×576); image transmission frame rate: 25 frames/sec
Display resolution: ≥1024×768;
Mean time between failures MTBF> 20000 hours
(2) Video splitter (16 channels, 8 channels, 4 channels common)
Video splitter, multi-input video splitter reduces the number of single splitters, can reduce the volume of equipment, and improve the stability of the system. Each channel of video input can be allocated to two channels, three channels, and four channels of video output identical to the input for use by other video processors.
(3) IP digital matrix switching control host (12 channels)
Video compression standard: H.264
Compression method: real-time decompression of all hardware audio and video
Operating System: Support Windows XP (ie Embedded XP, XPE for short)
(3) Topological structure diagram
The n-channel video server distributor added in the front-end monitoring site solves the problem of each sub-control computer viewing and controlling n cameras in the monitoring site. The added 4-channel digital video server is connected to the keyboard port of the analog monitoring host through the serial port and communication converter. The network interface is connected with the public security private network; the remote network control terminal (including the central management server, the leadership sub-control computer, the command center IP digital matrix switching control host, etc.) and the supervisory information system server need to be connected to the public security private network. details as follows:
(4) Introduction to integrated system control software
5.1. Leadership network sub-control at all levels
On the office computers of leaders at all levels, according to different operating habits, you can arbitrarily choose the remote monitoring mode of IE browser or professional multimedia electronic map software to remotely monitor the monitoring points in each area, and can remotely control the monitoring sites. The omni-directional camera can understand the situation of each scene in real time, the control is flexible, convenient, and intuitive, and it also displays the image of the cell in which the detainees are held. The daily operation interface is shown in the figure below:
In these two modes, you can remotely view the video data in the sub-control system of each area, so that after an abnormal situation occurs, you can understand the situation at the time of the incident in time, so that you can quickly deal with various situations.
5.2 City Bureau and Detachment Monitoring Command Center Control System
One set of IP digital matrix switching control host and several 100HZ color flat-screen monitors or projectors can be set in the municipal command center or supervision detachment, and integrated security management software can be installed, through the settings in the IP digital matrix switching system With the multimedia operation based on network cluster management software, the image of any front-end monitoring point in the entire system can be switched to the monitor in the designated screen wall, so as to supervise all the monitoring areas in the monitoring system of the entire city supervision site.
Because the images of each monitoring point have been digitally processed by the control equipment (network video server) of each monitoring center, and are in the form of data stream in the public security internal private network, so in addition to the control centers at all levels, they can control the system in each area. In addition to controlling and supervising the images of the front-end monitoring points, leaders at all levels can learn the actual situation of each monitoring site in real time on their office computers when needed.
The functions are as follows:
Possess complete multimedia windows or electronic map control and management functions, and supports multiple electronic maps.
It is very convenient to manage and control multiple digital matrices on the software interface, and any channel of image of all on-site monitoring terminals in the network can be arbitrarily adjusted on any monitor. It has a complete matrix switching control capability and can be started on any monitor Any switching sequence, you can also watch all camera images of any grouping sequence on multiple monitors at the same time, or switch multiple specified switching sequences in groups on multiple monitors. You can open a window on the software interface to monitor the output screen of each digital matrix.
You can open a single window on the software interface to arbitrarily adjust all camera images in the system, and perform various motion control of the front-end omni-directional camera while viewing the images.
The front-end hard disk video digital host can be controlled, managed and set up through the network, and the front-end host can be remotely controlled to perform recording/stop recording, alarm arming/disarming and other operations, and the working status of any front-end host can be checked at any time.
The alarm information uploaded by the on-site host can be received through the network. The system can automatically record and manage the received alarm information. After the alarm information processing is completed, the alarm history record is automatically generated, and various conditions of the alarm history record are supported; alarm pop-up electronics Maps and sound reminders.
Random retrieval and playback of the historical record of any channel of the image in the digital host of the on-site hard disk video recording, etc.
2. RFID bracelet monitoring and credit card system
(I. Overview
The RFID bracelet is a safe and reliable way of distinguishing and identifying detainees, and an intelligent prison administration management system that corresponds each person’s information in the management system to each person in reality, and realizes the informatization of prison management in a true sense. Step into the path of “requiring police force from science and technology”.
(2) Application and realization function of RFID bracelet/wristband in prison
Application 1: Business handling in the firm
Business content: interrogation, temporary office, lawyer meeting, family meeting, imprisonment, release, etc.
Use a handheld PDA terminal to process. Frequency 2.45GHz
Interrogation: When the police bring out the detainee, they first select the type of business on the touch screen, and then, by swiping the bar code on the interrogation certificate, “input” the interrogation information into the computer to determine the identity of the detainee. At this time, if the detainee and the interrogation certificate do not match, The computer will call the police, prompting the police to verify “whether the wrong person was brought.”
If the above business is successfully handled, the computer will automatically change the status of these detainees to “temporary office.” Relevant police can see relevant records in the “List of Temporary Personnel”. Before get off work in the afternoon, if there are still people who have not been put in prison, the computer will call the police to prompt the police to check.
Relevant businesses will be included in the workload of the relevant civilian police as a basis for workload assessment.
Application 2: Discipline—talk education
After the detainee enters the management classroom, the police use a scanner to read the detainee’s identity. The system automatically determines the detainee’s identity and starts timing. After the conversation is over, the police use the scanner to read the detainee’s identity, and the system records the end time of the detainee’s conversation. The conversation is over.
Application 3: Financial consumption
All detainees’ consumption and collection of items in the detention center can be confirmed through the barcode of their personal identification belt (badge). The police can bring the “handheld PDA consumer machine” to the prison area to handle the consumption of detainees and the collection of goods.
Large quantities of multiple consumption modes: The police only need to scan the goods sold like a supermarket cashier, and then import the data into the prison management information system, without any manual input. Detainees confirm their consumption by scanning their own barcodes, which highlights the humanized management thought.
After the police collects the above requirements, they transmit the data on the consumer machine to the detention center management information system. The detention center management information system automatically analyzes the imported data and prints the “Purchase Order” and “Item Distribution List.” The police completed the procurement business according to the “Purchase Order”. According to the “Item Distribution Form”, items are distributed to the detainees and the detainees are required to sign and confirm.
Small amount of goods consumption model: This business model is suitable when the demand for detainees is relatively small, the variety is single, and there is inventory in the detention center. The police can enter the prison area by cart to complete the sale of goods. After the police use the consumer machine to scan the barcode to determine the identity of the detainee, the account balance of that person can be displayed on the consumer machine in real time, which makes it convenient for the police and the detainee to grasp the balance status. After the consumer behavior occurs, the corresponding amount is automatically deducted.
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