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1. Program overview
(1) Project background
As the judicial organs’ tasks of maintaining social order and combating criminal crimes become more and more serious, the number of detention, education, and labor reforms of criminals in various supervision places continues unabated. How to improve prisons with technological innovations in new forms The new management model is becoming a new urgent need. At present, many scientific and technological means are used in the prison for monitoring, such as video, intercom, infrared, access control, power grid, etc., which have been comprehensively managed. However, these information systems are limited to information processing, and information collection is still only dependent on handwriting input. The information system is truly associated with the detainees, and video recognition relies on manual labor, and some automatic alarms also rely on manual recognition.
(2) Program objectives
The prison IoT management application program based on RFID radio frequency identification technology uses a safe and reliable automatic identification system in a special environment such as a surveillance site to distinguish, identify, track and locate detainees, and protect internal staff And manage the visitors, link the information of everyone in the information system with the dynamics of everyone in reality, actively identify and automatically alarm according to the preset.
This system can greatly enhance the modern management level of supervision sites, and improve the safety and self-protection capabilities of supervision sites. Whether it is inside or outside the prison, it can identify and track the location of prison managers and prisoners in real time.
(3) Scheme structure and principle
The program usesRFIDRadio frequency identification technology, through the information transmission between the reader and the electronic tag, to achieve the functions of identification, tracking and positioning, and trajectory query.
In the rooms, floors, squares, walls, passages, etc. inside and outside the prison, base stations are arranged as required to achieve signal coverage, and corresponding electronic tags are assigned to prisoners to be monitored and prison guards and objects to be protected. Wear RFID inmate wristbands for prison inmates, and install base stations in prisons, factories, and hospitals, so that you can know the number of detainees in real time. When detainees leave or enter an illegal area without authorization, the system will alarm, facilitating timely deal with. A non-dismountable wristband is used for prisoners. If the prisoner’s wristband has a signal or is damaged, it will automatically alarm and record the historical action track of each prisoner.
Prison guards and staff wear special RFID prison guard tags. The tags are equipped with an alarm button. Once an emergency occurs, press the help button to send a help signal to notify the monitoring center, and promptly display the alarm location on the map of the command center. The terminal can provide timely support to ensure the safety of the police.
2. Function introduction
(1) Management of the way out
When prison personnel need to go out for medical treatment, arraignment, court, transfer, etc., inmates need to wear RFID monitoring wristbands and install vehicle-mounted positioning base stations on prison vehicles and other vehicles. On the one hand, the vehicles are managed by GPS positioning, on the other hand. The number and status of the detainees in the vehicle and the prison guards are monitored throughout the entire process. The vehicle-mounted positioning base station sends the vehicle location and personnel information back to the monitoring center through GPRS or CDMA. The monitoring center can know the situation of the vehicle and the personnel in the escort at any time .
The prison guards in the car carry a portable monitoring terminal. The terminal and alarm monitor the status of the personnel in the car in real time, and immediately alarm when there is an abnormality in the wristband of the personnel, so as to realize effective monitoring on the way out. At the same time, prison guards can also send an alarm signal to the monitoring center when they encounter an emergency.
(2) Out-of-office inquiries, medical treatment, labor, and execution management outside prison
When detainees go out for medical treatment, work, etc., they can quickly build a temporary wireless mobile monitoring and positioning system in the place where they go out to monitor on-site personnel wearing wristbands to prevent the escape of prisoners who go out. The wireless mobile monitoring base station sends the personnel information on site back to the monitoring center via GPRS or CDMA. The monitoring center can know the situation of outgoing personnel at any time through the monitoring terminal, and can take immediate measures when abnormal situations occur.
Out-of-monitoring executives can wear GPS positioning wristbands to monitor the location and wristband status of the personnel in real time, and automatically send out an alarm message when an abnormal situation occurs.
(3) Real-time monitoring of fixed areas in prisons
Through the deployment of monitoring base stations in the prison and all other relevant personnel activities and passing areas, full coverage of the signal in the area that needs to be monitored in the prison is achieved. Arrange radio frequency fences in boundary areas such as fences. Relevant personnel wear positioning wristbands to conduct real-time, full, and active monitoring of prisoners and management personnel, and promptly report abnormal situations; prison guards wear wristbands to prevent attacks, and automatically or manually send out alarm signals for help in emergency situations.
(4) Prison boundary and access management
By arranging base stations at the border and exit gates of the prison and defining the legal area of action, the coupling of the radio frequency fences and wristbands arranged at the borders and exit gates can be used to realize information statistics and alarm prompts on the wristbands near the border and exit gates.
(5) Monitoring and management of foreign vehicles
By issuing cards for daily entry and exit vehicles and escort vehicles, the vehicle information can be combined with the card to determine the location of the vehicle in the prison, and real-time control of vehicle location information, personnel information, and movement information of the vehicle in the prison. Combined with the GPS system, it monitors the walking route of the outgoing vehicle, whether it is driving according to the prescribed route, and controls the position and status information of the outgoing vehicle in real time.
(6) Asset management
It can manage the guns and important assets of prison guards in the prison, can realize the statistics of the gun warehouse, the monitoring of the guns on the job, the gun maintenance records, etc., and the location setting and status monitoring of the important equipment in the prison.
(7) Small payment
The micro-payment function is through system integration, using the charging function of the radio frequency card to realize the charge management of the prisoners in the dining and shopping process.
(8) Linkage management with other prison facilities
When an alarm occurs, it can automatically switch to the video camera near the corresponding alarm location and track the monitoring site.At the same time, it can also be linked with the fingerprint system and the electric door to provide signals to the corresponding position of the follower door to control the action of the electric door
3. System composition and usage characteristics
(1) System composition
1. Base station
The base station is an intelligent long-distance reader, which is the information center device of the Internet of Things system. The base station continuously collects the radio frequency identification information sent by the surrounding positioning card, and uploads it to the collection server through the wireless communication network (WIFI network) to provide high-precision, real-time data collection for the Internet of Things system. Mainly have the following characteristics:
(1) Real-time collection of information and alarm signals emitted by the wristband;
(2) The base station can call the prison guard wristband;
(3) Real-time statistics of people; GPS positioning function;
(4) Built-in CDMA module, two-way communication with the control center;
2. Wristband label
The wristband tag is the information terminal device of the RFID sensor network. The wristband periodically sends out radio frequency information with its own logo to the surrounding base stations, and automatically sends out an alarm signal under abnormal conditions to notify the background computer system. The wristband is equipped with a button battery, and there are prison guard wristbands and prisoner wristbands. Mainly have the following characteristics:
Wristband design; alarm for illegal disassembly of the prisoner’s wristband; battery voltage detection function, automatically prompts when the voltage is low; low transmission power, no harm to the human body;
(2) System operation and operation-software platform
1. Software function
The software management system mainly includes entry management, information maintenance, labor education management, personal fund management, exit registration, query statistics, positioning, tracking, alarm management, and system management. Real-time display of the positioning target position and alarm information through the software interface.
2. Software system characteristics
Quickly, conveniently and accurately grasp the distribution and flow of personnel in the prison; the system is expandable and has a flexible interface design; the software provides a standard interface that can be seamlessly integrated with the existing prison administration system; the system area information can be queried on the WEB interface, It can be seamlessly integrated with the existing application system; the key hardware equipment of the system provides backup power; it provides automatic data backup and recovery tools.
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