With the rapid development of China's radio industry, China's radio management work has undergone great changes, and infrastructure construction has been subject to certain rules. In particular, the monitoring and testing departments have introduced a number of advanced equipment, which have basically reached the international advanced level.
However, at present, the management methods of radio stations in China are not advanced enough. The supervision methods of radio stations are relatively backward and cannot fully meet the needs of the rapid development of radio services. There are still some shortcomings in the supervision methods and mechanisms, and the lack of effective technical means has caused the serious use of radio stations at present. According to incomplete statistics, there are more than 3 million domestic walkie-talkies sold each year, and there are only more than 200,000 new walkie-talkie users registered by the radio management agencies. There are also phenomena such as the unauthorized use and reporting of the number of radio base stations by individual telecom operators. At present, the problem of private radio stations seriously interferes with the normal radio management order.
Although the national, provincial and municipal radio regulatory agencies have done their utmost to solve the problem, there are still technical difficulties. In response to the problems in the above management, the Oriental Botai Radio Spectrum Technology Research Institute introduced the innovative concept of RFID station management, and realized the management of a single station by utilizing the characteristics of RFID.
Introduction to RFID technologyAs an emerging automatic identification technology, Radio Frequency Identification (Radio Frequency Iden TIfica TIon, RFID) has been rapidly developed at home and abroad.
RFID radio station management system
Principle of RFID radio station management system
The RFID station management system developed by the Oriental Botai Radio Spectrum Technology Research Institute can realize centralized management of the management system data of each station. The local database server adopts a dual network card structure, and one network card is connected to the original management system network. . Through the interface, the data conversion program of the system can periodically convert the data in the original database server to the local database server, and the second network card of the local data server is connected to the local network, and the corresponding RFID is issued on the network. Label the workstation. The workstation is connected to an RFID reader for issuing and writing RFID tags and encrypting the data as necessary. [nextpage]
The personnel of the radio management department use the handheld RFID reading device to make a non-contact reading of the RFID on the radio transmitting equipment in the field, and obtain the decrypted related equipment information, the network passes through a firewall and China Unicom's CDMA1X network or China. The mobile GPRS network establishes a virtual private network (VPN). If necessary, you can directly connect to the authentication comparison server to query the device information. The authentication comparison server will return the query result to the staff's handheld device, so that the field personnel can make judgments based on the actual results. 2.2 RFID radio station management system composition
The RFID radio station management system includes: electronic tags, handheld RFID reading devices, authentication comparison servers, RFID writing workstations, database servers, CDMA1X or GPRSVPN private networks.
(1) RFID electronic tags
Considering factors such as comprehensive performance and price, the system uses an electronic tag operating at 13.56 MHz. Its chip is TI's TAGIT and PHILIPS Icode2, the internal space is 256 bytes (expandable to 512 bytes), can save most of the information about the radio transmitter, including device code, device unit name, address, device model , transmit power, frequency information, etc., the saved data is DES encrypted to prevent third-party RFID read-write devices from reading or rewriting.
The label is very small, the label can be pasted on the managed device, and the label can no longer be completely removed after being pasted. If the user maliciously disassembles it, it will be completely permanently damaged.
(2) Handheld RFID reading device
The system adopts a handheld RFID reading device capable of reading and writing 13.56MHz, and has a CDMA1X module or a GPRS module, which can directly connect to an application server located in the radio management department, and the reading device has a liquid crystal screen, which can display the read related Information, and the device has a decryption and decompression algorithm, which can completely read the contents of the encrypted label issued by the radio management department. At the same time, the software has a self-protection function. If the reading device is inadvertently lost, the application server can remotely issue a "remote" command to automatically destroy the decryption and decompression program to prevent the algorithm and key from being compromised.
In this solution, a variety of handheld terminal device options are provided. The technical parameters of the main product 6305 are as follows: Multiple functions for fast data acquisition and information processing
Combining hand-held information processing technology, smart card technology, SAM card technology and laser barcode scanning, it forms functions such as SAM card reading and writing, field data saving, etc., which can store data to the machine or through GPRS/CDMA, W. -LAN, ZigBee, Infrared, and 232 interfaces to transfer acquired data to a wireless data center receiver or PC. Easy to use, safe and reliable, can be developed twice, easy to maintain
With clear LCD screen and programmable buttons, SAM card with built-in encryption algorithm and MEMORY real-time hot backup, data can be restored when the machine is damaged; provide integrated environment for local development, convenient for users to develop related application software So that both system programs and applications can be upgraded. [nextpage] (3) authentication comparison server
The authentication compares the data transmitted by the remote handheld device with the server data, and compares the data to the handheld device, and has some management functions, including login management, query permission setting, and remote access to the remote device. Remote control and other functions.
(4) label writing workstation
The writing workstation writes the original data of the relevant radio transmitting device in the database into the RFID tag, and simultaneously compresses, encrypts and digitally signs the data, ensuring that the data in the RFID tag is not read or tampered with by the third party device.
(5) database server
Preserving the relevant data of the latest radio transmitting equipment, which is derived from the local database system or other related application systems, and is the basis for device data comparison.
The system completes on-site real-time data tracking comparison by renting Unicom or mobile wireless data services. By renting a mobile or Unicom VPN private network, the possibility of being exposed to the public network is avoided. The VPN network performs VPN authentication through the SIM card, and implements necessary port mapping functions through the firewall to ensure the security of the network system. Innovation of RFID radio station management system
The only sign of traditional radio station management is the station application number, which means that there are multiple devices under one radio license number. For example, some units have master and backup transmitter licenses and only one station. There are also a number of licenses for a number of devices in a standard radio station. For example, there are thousands of stations in PHS sharing a license. This situation makes it difficult to obtain evidence on the spot and cannot distinguish between legitimate stations and stations that are set up without authorization.
And each RFID tag is globally unique, so that even if the station uses the same license, it is easy to distinguish. The RFID tag has enough storage space to store all the information of the approved station on the chip. The staff can quickly distinguish between legal and illegal stations on the spot, which is convenient for timely supervision.
RFID is a soft electronic label that is easy to paste on approved equipment. It realizes the integration of license and equipment, and has obvious advantages over paper license. The remote supervision of each radio station can be achieved through the establishment of a local independent RFID station data network, especially through a remote real-time network connection.
The RFID radio station management system can realize on-site data forensics and verify the legitimacy of the station. The system can also be used in radio station inspection work procedures to establish a radio equipment inspection database that can be field tested for comparison during annual inspections. The system has a variety of practical extension functions, can be connected with the original database, real-time information sharing, can solve the basic needs of the radio management base layer, can also be extended and developed according to the needs, is an innovative technical means of radio station management.
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