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The RFID roll call management system is an intelligent solution for dynamic management of prison personnel developed by Guoan Chuangzhan Technology based on years of research and application practice of indoor personnel positioning technology. The system is based on RFID radio frequency technology, and through the wearing of special electronic identity tags for detainees, each person can be automatically identified by the system and accept the precise auxiliary management of the system.
1. Construction background
In order to prevent detainees from escaping, the supervisory unit generally adopts regional entry and exit reports and call management in work rooms. That is to say, when detainees need to move across regions, they need to report the number of persons on the move, whereabouts, and the police officers and other information to the prison command center, and they can move only after obtaining the approval of the command center. In the labor process, it is also necessary to count the number of detainees in the plant regularly and report it to the command center. However, under the traditional management model, people counting, reporting, and statistics are all done manually, which has caused problems such as long management process, heavy workload of police officers, low management efficiency, and labor impact. Therefore, breaking through traditional management shortcomings through technical means is the solution Important directions for these issues.
2. Scheme design
The system consists of three levels of electronic tag identification, information transmission, and tracking management, including: card-type electronic identity tags, wristband-type electronic tags, positioning identification antennas, fixed base station readers, mobile handheld readers, Communication gateway, management platform software, etc.
The system topology diagram is as follows
1. System workflow
1) The hand-held read-write terminal device directly reads the identity tag of the detained prisoner, and then connects the computer through the data line to upload the collected roll-call data to the platform server, and then transmits it from the software platform to other departments. The process is relatively simple.
2) In the case of a fixed-type reading and writing device, the detainee first carries the tag into the antenna identification range. After the antenna triggers the tag to work, the tag signal is received by the base station reader and the information is sent to the management background through a wired method.
Deploy the positioning antenna in the prison room and the entrances and exits of important passages, and match the ID of the positioning antenna with its deployment location in the background software. The detainee wears a wristband tag, and when passing through the identification range of the positioning antenna, the locator sends a low-frequency induction signal with its own ID to the wristband tag (the effective range of the positioning antenna can be adjusted according to the size of the antenna) , The tag reports the ID to the nearest radio frequency signal receiving base station in real time, and the background software knows from the ID that the person wearing the wristband tag is at the location of the locator.
According to actual business requirements, the roll call positioning system can be implemented according to different areas and objects.
2. Regional roll call positioning. Prisons usually adopt the method of regional management, that is, the management area is delimited by building layout or floor rooms.
1) Roll call positioning in the prison area
It is mainly used for small activity spaces such as prison cells and ventilation rooms. The cell is used as a unit to manage by name and location. The automatic and timed roll call positioning management can be carried out through the fixed positioning read-write equipment arranged in each room, and the prison guards can also carry out mobile roll call management through the handheld management terminal.
2) Roll call positioning outside the prison area
Mainly in large collective activity spaces such as labor reeducation workshops, collective activity playgrounds and labor classrooms. These places have large activity areas and large numbers of people. Fixed positioning reading and writing equipment can be arranged at the door, and the equipment can automatically perform operations when personnel pass by. Roll call statistics instead of waiting in line. In addition to arranging equipment at the door, fixed reading and writing equipment can also be arranged at other locations within its range of activities, such as ceilings, ceilings, walls, etc., to conduct automatic and regular roll-call management of detainees in real time.
3) Positioning by name of the entrance and exit of the passage
Fixed read-write devices are arranged at these main entrances and exits. When the detainees pass by these places, there is no need to line up. When they are walking freely, the system will automatically roll their names and count them in real time.
3. Main functions of the system
1) Management of prisoners in custody: The system uses positioning reading and writing equipment to perform roll-call statistics on prisoners in custody, including the number of online personnel, detailed identities, time and location, dynamic changes in the positioning area, etc., as well as real-time positioning management in the prison.
2) Prison guard management: The system will perform real-time positioning and tracking monitoring of the prison guards when they enter the recognition range of the positioning device during the inspection process with a card-type electronic tag. Play a regulatory and supervisory role. The card label has a button for help function. When the police encounter an emergency, they can directly press the button above to call for help in time.
3) Object tool management: Bind the anti-dismantling electronic tags to the object tools, and after the prisoner has participated in the labor, the labor tools used by the prisoner shall be counted in time to prevent the prisoner from hiding in private and causing accidents.
4. System hardware composition
1) Fixed reading and writing equipment: identification distance can be far or near, 1-100 meters adjustable, identification direction 90-360° adjustable, strong identification ability, can read 2000 tags at a time, and is not susceptible to external factors interference. After the equipment reads the information, it is transmitted to the computer management client terminal in real time via the network, and then sent to the command center and other departments.
2) Hand-held reading and writing terminal: mobile roll call equipment tool, the recognition distance is adjustable from 1-30 meters, the recognition direction is not limited, 200 tags can be read at a time, and the information can be transmitted to the computer management terminal through the data line after the information is collected , And then sent to other departments such as superiors.
3) Management tags: Police officers use card tags, and detainees can choose either wristband or card type, depending on their needs. Detainees use card-type tags for management, and they are prone to mutual borrowing, exchange, and loss. If conditions permit, it is recommended that detainees prefer wristband wristband tags, tamper-evident alarm, full tracking, and timely grasp of the situation.
5. System features
1) Real-time management: After the detainees are called, the system can quickly and timely feedback to the customer management end, there is no delay, so that the status of the detainees can be accurately grasped. The system can roll the names of the prisoners one by one, or quickly roll the names in batches. You can roll the call from a short distance or from a long distance.
2) Automatic and mobile combined management
The system can automatically recognize the roll call when the detainee passes through a fixed positioning read-write device, and it can also perform a barrier-free mobile roll call without affecting the prisoner’s work. The police officer holds a mobile read-write terminal device to complete it. The system can perform a roll call and count regularly and from time to time, and monitor the number, identity, location and other information of detainees in a timely manner.
3) Dual frequency working mechanism
This system is different from the traditional passive, single-frequency working mechanism, but adopts active dual-frequency working equipment, and incorporates high-frequency + low-frequency working modes, namely 2.4G/433M, 125K, and both RF signal strength and accuracy are obtained. A great improvement, combined with the unique RSSI fourth-generation core algorithm developed by the company, makes the system’s working mechanism more accurate and effective, which is significantly better than the overall performance of similar products in the market.
4) Expansion of access control and consumer credit card
Personnel roll call tags can integrate the 13.56HZ chip of the conventional access control IC card swiping module, and can also carry out stored-value consumption, purchase things, order meals, etc.
5) Video linkage function
During the roll call positioning process, nearby cameras can be called to assist work at any time to check the status of the personnel within the roll call range. If an abnormal situation occurs during the roll call process, the system will automatically call the corresponding camera linkage work.
3. Construction significance
1. Improve management efficiency. Strengthen the police with science and technology, liberate the police force, promote the standardization of police affairs, and transform the police work from manual management to an informationized, automated, and intelligent management method. Through automatic identification and statistics of personnel entry and exit, manual links are reduced, management time is shortened, human error is reduced, supervision measures are strengthened, and management is more timely and in place.
2. Improve labor efficiency. The automatic roll call system eliminates the need to wait in line, greatly shortening the roll call inspection time of detainees and saving labor time.
3. Conducive to the construction of a big data system for prison administration and police information management. Using the advanced technology and equipment of this system, the unified collection and storage of various useful management information, and sharing within the system, play a huge role in the entire public security, judicial management and even the construction of a harmonious society.
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