CN202003403U - Assets management system of colleges and universities based on active radio frequency identification (RFID) - Google Patents
Assets management system of colleges and universities based on active radio frequency identification (RFID) Download PDFInfo
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- CN202003403U CN202003403U CN2011201297214U CN201120129721U CN202003403U CN 202003403 U CN202003403 U CN 202003403U CN 2011201297214 U CN2011201297214 U CN 2011201297214U CN 201120129721 U CN201120129721 U CN 201120129721U CN 202003403 U CN202003403 U CN 202003403U
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Abstract
The utility model discloses an assets management system of colleges and universities based on active radio frequency identification (RFID), which comprises a plurality of active RFID tags. The active RFID tags correspond to readers which are communicated with college-level servers through gateway nodes, and the college-level servers are connected to school-level servers. The system has strong monitoring and early warning functions. The readers distributed at every monitoring point are integrated with multi-aspect warning devices with sound, light and the like. If assets are removed out of the monitoring range of a certain reader, the reader will do real-time grading warning on line, and the assets management system which runs on the servers makes a record of relevant information and realizes visual warning. The management of the assets like instrument and equipment of colleges and universities is an important application field of RFID technology which can enable the assets management system of colleges and universities to realize true intelligence management. Owing to the RFID technology, efficiency of appraisal of fixed assets and circulating funds can be enhanced, real-time dynamic management of equipment can be strengthened, and benefits of assets management can be comprehensively increased.
Description
Technical field
The utility model relates to a kind of asset management system of colleges and universities based on active radio-frequency (RF) identification.
Background technology
(Radio Frequency Identification RFID) is a kind of contactless automatic identification technology to radio-frequency (RF) identification.As far back as in World War II, U.S. army just once used this technology identification allied forces aircraft, because technology and cost never are used widely.Since U.S. Department of Defense and Wal-Mart company take the lead in after logistics field is used the RFID technology, industrial community is held optimistic expectation to the prospect of RFID.The market survey report prediction nearest according to ABI Research, the coming five years RFID industry production value average annual growth rate is 25%.RFID technology and application are in rapid upward period, are thought one of the most potential technology in this century by industry.
The RFID technology can be widely used in fields such as eas, commodity counterfeit prevention, identification, logistics management, vehicle toll.This technology develops very soon abroad.The RFID of low frequency and high frequency is used widely at aspects such as animal husbandry, traffic, gate inhibition, manufacturing, Item Managements.Successful Application RFID such as some fields such as railway, customs, digital certificates at home, and RFID The Application of Technology such as more field such as drug control, manufacturing industry, logistics management are just actively prepared trial.But above situation belongs to the development of passive RFID technology more, and the active RFID Study on Technology is a brand-new application, because it possesses characteristics such as communication distance is long, transmission data rate is big, reliability height, begins high speed development abroad.Development research at home is in the starting stage, is applied to systems such as container identification, non-parking charge, coal miner location gradually, and it is significant to develop the active RFID Study on Technology energetically.
Colleges and universities' asset management is one of RFID technology important use field, but present domestic colleges and universities also rarely have report to what assets were carried out the RFID intelligent management.Colleges and universities' assets have characteristics such as the height of value, life cycle is long, loose in the configuration place, management difficulty is big, so asset management is a complicated system engineering in colleges and universities' management.The problem that colleges and universities' asset management mainly exists:
1. instrument and equipment examination efficient is low
At present the asset management of colleges and universities is by means of traditional labor management ways and means, and the collection and the typing of data always are manual operations, and efficient is low, error rate is high, and assets information in kind and management system information can't be synchronous in real time.Can only pass through label made of paper during examination, manually register, examine processing, time-consuming, effort, efficient is low.
2. equipment flows and is difficult to monitoring
Tunnel the continuous propelling of colleges and universities' informatization, and individual configuration device constantly increases, and progressively being equipped with of desktop computer, printer, notebook computer, digital camera etc. makes capital assets have stronger flowability.When institutional adjustment, job rotation, teaching and administrative staff's transfer or office moved, the generation of the adjustment of equipment and mobile tunnel under traditional management mode, accomplish that account reality symbol can only be an empty verbiage.
Adopt the RFID technology can effectively solve the bottleneck difficult problem of colleges and universities' asset data distributed collection input, assets daily management activity and the asset management system effectively could be combined, thereby reach the real-time synchronous consistent of information in kind and system information.Therefore, set up a cover and manage the effective way that becomes solution asset management difficulty automatically based on asset management system's realization of RFID technology.
The utility model content
For remedying the deficiencies in the prior art, the utility model provides a kind of asset management system of colleges and universities based on active radio-frequency (RF) identification.
For achieving the above object, the utility model adopts following technical scheme:
Based on the asset management system of colleges and universities of active radio-frequency (RF) identification, it comprises a plurality of active RFID tags, and active RFID tag is corresponding with read write line, and read write line is by gateway node and institute-level server communication, and institute-level server is connected with school level server.
Described active RFID tag is communicated by letter by Ad Hoc network or GPRS with read write line.
Described read write line is located at the doorway of each office or machine room, is responsible for the reading of on-the-spot label information, processing and sound and light alarm are realized data forwarding and transmission.
Described read write line comprises center processor, and center processor is connected with the GPRS module is two-way with antennafier respectively; The input end of described center processor is connected with keyboard, and the output terminal of center processor is connected with the input end of acousto-optic warning unit and LCD MODULE.
Described gateway node is responsible for the label information that on-site collection comes is transmitted to cable network, and it is connected to institute-level server by Ethernet or serial ports.
Described institute level server transmits assets information to school's level server by the internet, the operation school level asset management system on school's level server, assets to whole school manage, and the supvr can land web server lookup assets position by any All-China Federation of Taiwan Compatriots's net PC or mobile phone.
Beneficial effect:
(1) low-power consumption: active RFID possesses characteristics such as communication distance is long, transmitted data amount is big, and reliability height and compatibility are good, compares with passive RFID, and advantage technically is very obvious.But because powered battery, and main energy consumption is a wireless transmission of signal, adopt electronic tag to be in dormant state during the event design, utilize external interrupt wakeup, the effective identifying code that utilizes interrupt mode to receive read write line is simultaneously also discerned the information that just sends oneself after the position of controlling oneself changes.Read write line is placed on the inlet in room, but its emissive power of manual shift changes the coverage of read write line, realizes the low-power consumption of system.
(2) this system has strong monitoring and warning function: the multi-faceted warning device such as the integrated sound of read write line, light that is distributed in each monitoring point.In case there are assets to shift out certain read write line monitoring range, carry out grading forewarning system to the read write line online in real time, and run on asset management system's record corresponding information of server, realize visual warning.
(3) safety Design of rfid system:
1. the mechanism that adopts label and read write line to authenticate mutually prevents that illegal read write line from obtaining label information or distorting label data, perhaps forges label and cheat read write line.
2. for effectively protecting the information of label not intercepted and captured, the AES128 safety coprocessor that utilizes processor CC2431 chip to carry during system design carries out encrypted transmission to the information that sends, and avoids using in the communication process plaintext transmission.
Description of drawings
Fig. 1 is a structured flowchart of the present utility model;
Fig. 2 is a read write line structural principle block diagram;
Fig. 3 is a gateway structural principle block diagram;
Fig. 4 is the process flow diagram of read write line.
Embodiment
The utility model is described in further detail below in conjunction with drawings and Examples:
Be illustrated in figure 1 as the asset management system of colleges and universities of active RFID.Every assets of colleges and universities all are furnished with the electronic tag (RFID) of unique ID number after purchasing.According to the school assets distribution situation rfid interrogator is set, a general machine room or read write line of office's configuration, and unique numbering is arranged, the assets of this read write line supervision whole equipment room or office.Whether the supervision process is as follows: (1) read write line regularly (this time can manually be provided with) sends the Card Reader order, after the RFID label receives effective identifying code, at first judge and control oneself in same read write line recognition zone, if just do not send information; Otherwise,, and send to read write line to ID number and the relevant information encryption of self.The read write line recording-related information also sends to gateway node.If there is a new RFID label to enter the recognition zone of this read write line, read write line will write down its relevant information, and sends to gateway node, and this read write line produces sound and light alarm simultaneously.(2) read write line is separated by than long time (but this time manual shift, the longest 12 hours), the order of broadcasting Card Reader, behind all electronic tag operation anti-collision algorithms in its recognition zone, encrypt self ID number and relevant information, and sending to read write line, read write line judges whether the equipment of oneself supervising all exists according to this.If there are assets not exist, inquire about once more at these assets, if very do not exist, write down this information and send to gateway node, this read write line produces sound and light alarm simultaneously.
The information of read write line collection can be sent to gateway by dual mode.A kind of mode is that all read write lines organize themselves into wireless Ad Hoc network, and the information that each read write line is collected arrives gateway node through the multi-hop route.This mode must design the multi-hop routing algorithm.Another kind of mode is that read write line send information to gateway node by the GPRS module.The information feedback that gateway node sends read write line is given the asset management system of institute-level server.
Gateway node is connected to institute's level server by serial ports or Ethernet, and the institute-level asset management system of operation manages the assets of the court on institute's level server.Supervisory routine can Treatment Analysis the information that sends of gateway whether unusual, if note abnormalities then can send warning, and the motion track of the INFORMATION DISCOVERY assets of sending according to each read write line; If the normal of assets moves, then revise the Asset ID of corresponding read write line supervision.Then the ID input manager system of these article is inquired about the position of determining these article if seek certain part article.
Institute's level server transmits assets information to school's level server by the internet, and the operation school level asset management system on this server manages the assets of whole school.The supvr can land web server lookup assets position by any All-China Federation of Taiwan Compatriots's net PC even mobile phone.
Based on the hardware design of this system, mainly contain electronic label read/write, active RFID tag and gateway node.
Active RFID tag is based on processor CC2431 chip.It is the SOC (system on a chip) that is used for realizing embedded ZigBee application that Chipcon company releases.Inner integrated industrial standard enhancement mode 8051 MCU kernels, 128KB Flash ROM, 8 KB RAM and CC2420 radio-frequency (RF) transceiver, AES128 safety coprocessor; CC2420 has fully-integrated voltage controlled oscillator, only needs considerably less peripheral circuit elements such as antenna, crystal oscillator, power supply just can work on the 2.4GHz frequency range.
Read write line is placed on the doorway of each office or machine room, supervises the electronic tag of its recognition scope, and carries out corresponding sound and light alarm.It mainly contains center processing chip CC2431, keyboard, LCD MODULE, antennafier and acousto-optic warning unit and forms.Its hardware configuration as shown in Figure 2.
Processor unit CC2431 is responsible for controlling the operation of read write line, regularly reads the information and the storage of electronic tag.Under wireless Ad hoc network communication mode, this processor sends self information and transmits the information that other read write lines are sent by built-in CC2420 radio-frequency (RF) transceiver.Under the mobile network communication mode, this processor sends information by the GPRS module.Under the dual mode, the AES128 safety coprocessor that the information of transmission utilizes processor CC2431 chip to carry is encrypted biography.The CC2591 chip is an antennafier, and the ultrahigh frequency that is used between antenna and feeder line amplifies, and increases receiving range and improves the quality of reception.Keyboard is mainly used in the time that read write line regularly reads electronic tag that is provided with.
Gateway node receives the information of read write line transmission and is sent to institute-level server.Its hardware configuration as shown in Figure 3.The gateway node dual mode of having received and sent messages.When read write line composition wireless Ad hoc network communicated, the CC2420 radio-frequency (RF) transceiver built-in by processor CC2431 received the information that read write line is sent; When read write line communicated by mobile network, this processor was received and sent messages by the GPRS module.Gateway node transmission information also has dual mode to institute-level server.A kind of by ethernet module SW5100 with the bag form send information to institute-level server; Another kind send information to institute-level server by serial ports.Ethernet communication module SW5100 is a multi-functional monolithic network interface chip, can realize that the Internet that does not have operating system connects.The MAX232 chip is mainly realized the conversion of level.CP2102 is the USB-UART converter that U.S. Silicon company releases.USB2. the relative RS-232 interface of 0 interface has advantages such as the interface volume is little, data rate fast, plug and play, but the USB2.0 agreement is too complicated, and adopt USB-UART bridge CP2102 to convert RS-232 interface to the USB2.0 interface, not only realized the miniaturization of interface, be convenient to and server communication, and need not to research and develop corresponding USB2.0 agreement, shortened the lead time greatly, and the power supply of gateway node can provide by USB interface.
On software architecture, mainly divide read write line, electronic tag, gateway and server quadruplet software.
(1) read write line software: be responsible for the reading of on-the-spot label information, processing and sound and light alarm are realized data forwarding, basic functions such as transmission are used the NesC language development, and the AES128 coprocessor that the data use processor of transmitting-receiving carries carries out encryption and decryption.Software flow as shown in Figure 4.
The LCD of read write line shows the time at ordinary times, uses as clock.Read write line has regularly Card Reader order and the order of broadcasting Card Reader.When the RFID label receives regularly Card Reader order, at first judge the recognition scope of controlling oneself and whether being in same read write line, if do not send information; Send self-information to read write line otherwise encrypt.When the RFID label receives the order of broadcasting Card Reader, all to encrypt and send information to read write line.Read write line judges according to this whether the assets of supervision exist.Regularly Card Reader is broadcasted frequent many of Card Reader relatively, can reduce the energy consumption of RFID so greatly.Regularly the frequency of Card Reader and broadcasting Card Reader can be imported from keyboard.Utilize the timer 0 and 1 interrupt management of processor.
If a plurality of read write lines are formed wireless Ad Hoc network, in the design of whole communication protocol stack, need to guarantee efficient communication between read write line, the connectedness of service data transmission path.
(2) electronic tag software: in most cases, label is in park mode, utilizes external interrupt that it is waken up, enters accepting state.After electronic tag receives effective identifying code, analyze the order that receives.If regularly Card Reader order, the RFID label is judged ID number of card reader, if the read write line of supervision oneself does not send information; Otherwise encrypt self ID number and relevant information and send to read write line; If self ID number and relevant information and send to read write line are encrypted in broadcasting Card Reader order, RFID label equally.This program mainly is a label anti-collision algorithm, uses the NesC language development.
When a plurality of labels enter the recognition scope of read write line, receive the identifying code that read write line sends simultaneously after, the data that different labels return can overlap, and cause read write line decoding error to received signal, can't carry out ID identification fast and effectively.Therefore, must study label anti-collision algorithm, make read write line receive label information reliably, fast.In native system, for the continuous label of card number, can effectively use polling algorithm, polling algorithm only need use Manchester code identification collision position one time, just can send instruction according to rule, can reduce the complicacy of system design greatly; For the unordered label of card number, adopt the binary tree search method of dynamically adjusting, can realize the label data read-write fast.
(3) gateway software: be responsible for the label information that on-site collection comes is transmitted to cable network.It is connected to institute-level server by Ethernet or serial ports.Gateway can be realized real time of data transmission under the application-specific.Need to realize basic data communication interface on the software programming, use the NesC language development.
(4) server software: be back-end data management and the core of analyzing.All label datas that it is explained and storage gateway transmits.Simultaneously, server provides the real time data library inquiry for validated user.The software programming more complicated of server, need and gateway communication in lower floor, realize the basic communication of data interface, the upper strata will provide the standard database interface for the user, therefore select for use senior commercial data base system comparatively suitable, as Microsoft SQL server.Server software operates on the windows platform, uses the C language development.
Claims (6)
1. based on the asset management system of colleges and universities of active radio-frequency (RF) identification, it is characterized in that it comprises a plurality of active RFID tags, active RFID tag is corresponding with read write line, and read write line is by gateway node and institute-level server communication, and institute-level server is connected with school level server.
2. the asset management system of colleges and universities based on active radio-frequency (RF) identification as claimed in claim 1 is characterized in that described active RFID tag is communicated by letter by Ad Hoc network or GPRS with read write line.
3. the asset management system of colleges and universities based on active radio-frequency (RF) identification as claimed in claim 1 or 2, it is characterized in that, described read write line is located at the doorway of each office or machine room, is responsible for the reading of on-the-spot label information, processing and sound and light alarm are realized data forwarding and transmission.
4. the asset management system of colleges and universities based on active radio-frequency (RF) identification as claimed in claim 3 is characterized in that described read write line comprises center processor, and center processor is connected with the GPRS module is two-way with antennafier respectively; The input end of described center processor is connected with keyboard, and the output terminal of center processor is connected with the input end of acousto-optic warning unit and LCD MODULE.
5. the asset management system of colleges and universities based on active radio-frequency (RF) identification as claimed in claim 1 is characterized in that, described gateway node is responsible for the label information that on-site collection comes is transmitted to cable network, and it is connected to institute-level server by Ethernet or serial ports.
6. the asset management system of colleges and universities based on active radio-frequency (RF) identification as claimed in claim 1, it is characterized in that, described institute level server transmits assets information to school's level server by the internet, the operation school level asset management system on school's level server, assets to whole school manage, and the supvr can land web server lookup assets position by any All-China Federation of Taiwan Compatriots's net PC or mobile phone.
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| CN2011201297214U CN202003403U (en) | 2011-04-28 | 2011-04-28 | Assets management system of colleges and universities based on active radio frequency identification (RFID) |
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| CN2011201297214U CN202003403U (en) | 2011-04-28 | 2011-04-28 | Assets management system of colleges and universities based on active radio frequency identification (RFID) |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103412530A (en) * | 2013-07-29 | 2013-11-27 | 四川交通职业技术学院 | Fixed-asset management system based on RFID technology |
| CN104166891A (en) * | 2014-06-06 | 2014-11-26 | 国家电网公司 | Double-RFID label-controlled power grid information asset management system and implementation method thereof |
| CN107220575A (en) * | 2017-05-24 | 2017-09-29 | 安徽省亳州市中级人民法院 | Asset monitoring system |
| CN110008778A (en) * | 2019-05-13 | 2019-07-12 | 北京中科蓝信科技有限公司 | The asset management system of indoor distributed system and its ultrahigh frequency radio frequency identification (RFID) reader of application |
| CN111209984A (en) * | 2019-12-17 | 2020-05-29 | 北京卫星制造厂有限公司 | Real-time sensing method based on RFID (radio frequency identification) Internet of things manufacturing |
| WO2022213533A1 (en) * | 2021-04-06 | 2022-10-13 | 海南马良师傅网络科技有限公司 | Instrument asset positioning supervision system and method based on internet of things remote terminal monitoring |
-
2011
- 2011-04-28 CN CN2011201297214U patent/CN202003403U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103412530A (en) * | 2013-07-29 | 2013-11-27 | 四川交通职业技术学院 | Fixed-asset management system based on RFID technology |
| CN104166891A (en) * | 2014-06-06 | 2014-11-26 | 国家电网公司 | Double-RFID label-controlled power grid information asset management system and implementation method thereof |
| CN104166891B (en) * | 2014-06-06 | 2018-05-08 | 国家电网公司 | A kind of electric network information asset management system of double RFID tag management and control and its implementation |
| CN107220575A (en) * | 2017-05-24 | 2017-09-29 | 安徽省亳州市中级人民法院 | Asset monitoring system |
| CN110008778A (en) * | 2019-05-13 | 2019-07-12 | 北京中科蓝信科技有限公司 | The asset management system of indoor distributed system and its ultrahigh frequency radio frequency identification (RFID) reader of application |
| CN111209984A (en) * | 2019-12-17 | 2020-05-29 | 北京卫星制造厂有限公司 | Real-time sensing method based on RFID (radio frequency identification) Internet of things manufacturing |
| WO2022213533A1 (en) * | 2021-04-06 | 2022-10-13 | 海南马良师傅网络科技有限公司 | Instrument asset positioning supervision system and method based on internet of things remote terminal monitoring |
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Granted publication date: 20111005 Termination date: 20120428 |