RFID-based intelligent positioning management system for prison personnel,Pet Identification manufac

　　RFID-based intelligent positioning management system for prison personnel

　　1. Current situation of prisons

　　The current situation of prison personnel management in our country is mostly still at the stage of using prison guards to inspect and monitor and alarm by cameras. Manual operations still account for a large proportion and the degree of informationization is relatively low. However, information collection is still only relying on manual input and cannot be used to input information. The system is truly connected to the detainees. Due to the current level of prison management, a series of vicious escapes have occurred, such as: Shaanxi Hanzhong, Jieshou, Hohhot, Hunan Changde, Fangchenggang, Fuyang, etc., causing great harm to the society. In order to prevent another escape Occurs, preventing criminals from harming society again, making the intelligent construction of prisons extremely urgent. The rapid development of RFID technology in the country has brought new opportunities for the intelligent construction of prisons. In order to improve the informatization level of prison management, promote the development of prison management to institutionalization, standardization and real-time development, and ensure the safety and stability of prisons, and gradually realize The "intelligent all-round positioning" of the prison area has laid a solid foundation. Shanghai Renwei Electronic Technology Co., Ltd. is based on the third-generation RFID technology, applies 0.13um chip manufacturing process, and relies on the world's top radio frequency electronic technology experts to integrate the world's most advanced antenna technology, optical communication technology, industrial Ethernet transmission technology, and database This networked prisoner location control and management system has been developed and constructed to tackle key multi-disciplinary comprehensive topics such as processing technology, computer software technology, geographic information system technology, and Internet technology. This system uses RFID (Radio Frequency Identification) radio frequency identification technology to realize automatic identification, location tracking, early warning and automatic alarm, emergency command and regulation of prisoners' behavior, and uses safe and reliable information collection methods to monitor, track, and identify detainees and prison guards. The personal information in the information system is truly connected with the individuals in reality, and real-time tracking and alarming can be realized. Only in this way can the prison management information be realized in a real sense, and the "police from science and technology" can be realized.

　　Electronic wristband RW-T 708 is a multi-functional composite tag that integrates 2.4GHz and 13.56MHz radio frequency chips. This electronic wristband can realize the two basic functions of personnel positioning and personnel identification, so as to use this feature to further realize prisoner cross-border alarm, area alarm, route monitoring, emergency investigation, proximity alarm, emergency call, and prison all-in-one card management, etc. Various prison management functions. In addition, the RW-T 708 electronic wristband for prison inmates also has an anti-disassembly function to prevent inmates from destroying the electronic wristband. The prison management system is a visual application system that uses RW-T 708 electronic wristband to manage and monitor prison guards and prisoners according to the needs of all parties in the prison. The system can keep track of the location of prisoners and prison guards, real-time identification, positioning and tracking indoors and outdoors, providing prison managers with valuable real-time location information, condition warning information, active alarm information and other comprehensive management information. At the same time, it enables prison managers to grasp the number and information of prisoners in each controlled area of the prison in real time, as well as the information of prison guards patrolled around, thereby improving the security level of prison guards and equipment. The prison management system also uses the all-in-one card function of the RW-T 708 electronic wristband to realize the all-in-one card for internal consumption, attendance, and access control in the prison. Through the high-tech functions of RW-T 708, Renwei Electronic Prison Management System finally improves the efficiency and level of prison management through accurate real-time information methods, and significantly improves the efficiency and benefits of prison management.

　　2. System design plan

　　1 Guiding ideology and principles of system construction

　　The system construction aims to improve the informatization level of prison management and prevent escape incidents. It focuses on real-time, high-efficiency, and scientific management of prison management. With the goal of benefit and quality, the system design and overall planning shall be carried out within the overall framework of the construction of the digital information supervision area. The process of informatization and modernization of district prisoner management and administrative management.

　　System development and construction follow the following principles

　　1. Focus on overall planning

　　The prisoner positioning control system developed this time consists of four subsystems: prisoner basic situation management, wristband label management, electronic map range positioning, and prisoner evaluation management and control. They belong to the different application levels of the overall support platform of the digital prison area, including the basic situation of the prisoner. Management and wristband label management belong to the basic data layer of the overall platform, and belong to the basic platform as well as unit management, dictionary library management, and prison authority management systems; electronic map management and personnel assessment management and control systems belong to the application layer of the overall platform. Therefore, it is necessary to carry out system planning within the framework of the overall support platform of the digital surveillance area, and design and develop it as an integral part of the construction of the digital surveillance area;

　　2. Based on independent research and development. The system construction adopts the standard 2.4G RFID technology commonly used in the market, and the 2.4G transmission efficiency reaches 2Mbps. There is no need for continuous work between the receiving end and the transmitting end, which greatly reduces power consumption and extends battery life. At the same time, in order to avoid the phenomenon that the 27Mhz wireless frequency band is prone to mutual interference, 2.4G also adopts automatic frequency modulation technology, and the receiving end and the transmitting end can find the available frequency band. In addition, it is more important that the 2.4G RF wireless technology is a two-way transmission mode to avoid 27Mhz unidirectional transmission that is prone to signal discontinuity. 2.4Ghz is a public frequency band and does not require any organization or individual to pay patent fees, and its cost is much lower than other wireless network technologies (such as WiFi/Bluetooth, etc.). Use 2.4G wireless module to cooperate with our company's independent research and development and design of auxiliary circuit and single-chip encryption processing program to form a safe and stable electronic positioning system;

　　3. Focus on future development. In terms of the overall system architecture, service equipment selection, wristband tag type, basic data collection, etc., fully consider the realization of subsequent functions, taking into account the compatibility of the equipment, the scalability of the system, the scalability of functions and the diversity of applications;

　　4. Apply advanced technology. Combined with the latest development of information technology, the entire system is constructed with advanced and mature technology and equipment, and advanced development platforms and technical means are applied to meet the requirements of technological upgrading and function expansion. Development and operation are based on the current advanced Microsoft.net technology, and the database adopts SQL Server 2000;

　　5. Strengthen system specifications. System development and resource construction conform to a unified technical specification and characterization system, pay attention to the continuity and sharing of development work, and pay attention to leaving standardized data and control interfaces for subsequent system development and promotion. Unified development of technical indicators such as application technology, data storage format, signal transmission format, interconnection interface mode, etc.;

　　6. Give full play to construction benefits. The development and construction of the system should be combined with the actual conditions of the supervision area, and the management of the supervision area should be further strengthened on the basis of the existing system; in accordance with the construction ideas of overall planning, construction while using, and gradual improvement, the construction benefits should be fully brought into play.

　　2 System principle

　　RFID prison personnel intelligent management system through the application of RFID electronic tags, using electronic tags as the most advanced identification code at present, it has the characteristics of not easy to be damaged, reliable data, long service life, long effective communication distance, etc. It is an alternative to barcode and infrared identification. The best choice. Install it on the controlled target and use it as the unique identifier of the target for tracking and positioning. At work, managers track and locate targets through networked wireless identification base stations.

　　1. The working principle of electronic tags

　　Electronic tag (RFID) technology is a wireless automatic identification technology that uses radio frequency signals and their spatial coupling and transmission characteristics to realize automatic machine identification of stationary or moving items to be identified. The system uses electronic tag technology to develop, Two products, an electronic wristband and a prison guard card, were produced.

　　The radio frequency identification system generally consists of three parts, namely, electronic tags, readers, and background management software. In the application, the electronic tag is attached to the object, equipment, or person to be identified. When the object, equipment, or person attached to the electronic tag enters the reading range of the reader, the reader will automatically wirelessly send the agreement in the electronic tag The identification information receives or writes specific information, so as to realize the function of automatically identifying items or automatically collecting item identification information.

　　2. RFID automatic identification technology principle

　　The system composed of RFID and short-range communication equipment mainly includes two parts: smart RFID and RFID read-write units (RWU). The wireless communication between the read-write equipment RWU and RFID realizes the communication between the information management system and RFID. Information exchange.

　　The read-write device RWU is an RFID read-write controller, which is composed of a microprocessor, a security module, a microwave communication controller and communication interfaces such as RS232, 485, TCP/IP, etc. It uses short-range communication protocols and microwave wireless transmission methods to realize RWU For the purpose of safe and reliable information exchange with RFID, RWU connects to the host computer through RS232, 485, WIFI, GPRS, TCP/IP, etc., receives control commands and data from the host computer and returns data.

　　3. Principles of Regional Positioning and Tracking

　　A B C is the reader, the receiving range is constant, tag1 tag2 tag3 is the same parameter and gain type tag. The gain can be cycled automatically (0db 1db 2db 3db respectively). When transmitting data, it can also send its own antenna gain data.

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