CN105590078B - A kind of equipment automatic identification equipment and automatic identifying method based on RFID technique - Google Patents
A kind of equipment automatic identification equipment and automatic identifying method based on RFID technique Download PDFInfo
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- CN105590078B CN105590078B CN201510971134.2A CN201510971134A CN105590078B CN 105590078 B CN105590078 B CN 105590078B CN 201510971134 A CN201510971134 A CN 201510971134A CN 105590078 B CN105590078 B CN 105590078B
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
- G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
- G06K7/10009—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves
- G06K7/10316—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves using at least one antenna particularly designed for interrogating the wireless record carriers
- G06K7/10346—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves using at least one antenna particularly designed for interrogating the wireless record carriers the antenna being of the far field type, e.g. HF types or dipoles
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
- G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
- G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
- G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
- G06K19/0723—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips the record carrier comprising an arrangement for non-contact communication, e.g. wireless communication circuits on transponder cards, non-contact smart cards or RFIDs
- G06K19/0726—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips the record carrier comprising an arrangement for non-contact communication, e.g. wireless communication circuits on transponder cards, non-contact smart cards or RFIDs the arrangement including a circuit for tuning the resonance frequency of an antenna on the record carrier
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- Theoretical Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
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- Electromagnetism (AREA)
- General Health & Medical Sciences (AREA)
- Artificial Intelligence (AREA)
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- Near-Field Transmission Systems (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The invention discloses a kind of equipment automatic identification equipments and automatic identifying method based on RFID technique, the device includes controller, the low frequency stimulator, radio frequency receiver and the display terminal that are electrically connected with the controller and half active rfid electronic tag being attached in required identification equipment.Equipment automatic identification equipment and automatic identifying method disclosed in this invention based on RFID technique, can be by contactless method automatic identification compared with multiple target；By using half active rfid electronic tag, the service life of electronic tag is greatly improved；It can far distance controlled driver and receiver operation and automatically scanning electronic tag.
Description
Technical field
The present invention relates to technology of Internet of things research field more particularly to a kind of equipment automatic identification dresses based on RFID technique
It puts and automatic identifying method.
Background technology
Radio frequency identification（Radio Frequency Identification, RFID）Technology is a kind of using radio communication
The non-contact automatic identification technology of realization.RFID technique is that enemy and we's target of aircraft is used in World War II earliest
Identification, due to technology and cost reason, is not used widely.From the 1960s, RFID technique is theoretical to be started soon
Speed development, various RFID techniques and the rapid appearance of application；In recent years, as sensor network, large scale integrated circuit, network lead to
The development of the technologies such as letter, information security, RFID technique be also widely used for train identification, identity card and voucher management,
The multiple fields such as animal identification, special equipment and hazardous material management, public transport and Technical innova- tion；It is led simultaneously in military affairs
There is certain application in domain.
RFID label tag has the characteristics that big small, capacity, long lifespan, is hardly damaged, and supports fast reading and writing, non-visual knowledge
Not, mobile identification, multi-targets recognition, positioning and long-term follow management.RFID technique is combined with technologies such as internet, communications,
It can be achieved to the Weigh sensor of object, positioning, tracking, monitoring and management.
In logistical applications, based on RFID technique, unified relevant information electronic tag is added on all kinds of goods and materials,
Classified by reader automatic identification and positioning, goods and materials can be established and stored up, transported and controlled with state automatic sensing and intelligence
Information device processed；So as to transport and in delivery process, realize that accurate place, correct time provide positive exact figures to accurate target
The goods and materials of amount avoid causing unnecessary chaotic, waste in management.
It is also obtained in military-logistics system using radio frequency identification and satellite positioning tech by wireless sensor network
Real time data in military materials storage, transportational process, with reference to military logistics management platform, links each transport of military logistics
Link can complete positioning, searching, management and the high-efficient homework of valuable cargo, realize the object that army is dispensed into military logistics
Flow " seamless link " of transportation network and the information network based on RFID.
In the prior art, common passive electronic label utilizes reading after the microwave signal that reader is sent is received
The electromagnetic wave for writing device transmitting provides energy, but its reading distance is near, and operating distance is only less than 0.5 meter；Active electronic label by
Inside tags battery powered actively sends data to reader, and reading distance is far, but is unable to control working condition, and the service life has
Limit.
The content of the invention
The technical problems to be solved by the invention are just to provide a kind of remote controlled and automatically scanning based on RFID skills
The equipment automatic identification equipment and automatic identifying method of art.
The present invention adopts the following technical scheme that：
A kind of equipment automatic identification equipment based on RFID technique, thes improvement is that：The device includes control
In device, the low frequency stimulator being electrically connected with the controller, radio frequency receiver and display terminal and identification equipment needed for being attached to
Half active rfid electronic tag；The display terminal shows that described is low for remote control, data processing, scanning result
Frequency driver generates the pumping signal of codified, for encouraging half active rfid electronic tag, the half active rfid electronics
Label has unique electronic code, for identifying equipment storage configuration, after pumping signal is received, launches and is stored in label
Internal information；The radio frequency receiver is used to read the signal of half active rfid electronic tag transmitting and signal is decoded,
And it send to controller and is handled；The controller be used to controlling low frequency stimulator and radio frequency receiver power on and go electricity,
Data transmission between radio frequency receiver and controller.
Further, the low frequency stimulator includes transmitting antenna and the antenna drive circuit being electrically connected, power supply
It powers for antenna and antenna drive circuit.
Further, the transmitting antenna uses circular coil form, is used as resonant antenna, and electricity is driven by antenna
Road generates 125KHz signals, and by resonance, antenna launches resonance signal, and according to control sequence, antenna drives
Dynamic circuit can generate not homotactic 125KHz modulated signals.
Further, the antenna drive circuit adjustable antenna peak point current, maximum 1.5A；Frequency can be
Adjustment in 100KHz-150KHz, and can adjust automatically antenna resonant frequency.
Further, the half active rfid electronic tag is coupled to receive circuit and emission of radio frequency signals electricity including low frequency
Road and the button cell powered for it；The low frequency, which is coupled to receive circuit, includes low frequency wake-up chip and low frequency coupling
The microprocessor that antenna and control low frequency wake-up chip wake up, the low frequency coupled antenna use 125KHz inductor, resonant circuits
Or capacitor resonant circuit carries out resonance；The emission of radio frequency signals circuit includes wireless transmission chip, the wireless transmission chip
Transmitting antenna using printed board antenna, tranmitting frequency 2.4GHz, peak inrush current 10mA, power consumption -5dBm；It is standby
Operating current 200nA under pattern.
Further, the radio frequency receiver includes radio receiving transmitting module, serial ports modular converter, microprocessor control mould
Block and wire antenna；The radio receiving transmitting module is radio transmitting and receiving chip, works in 2.4~2.5GHz ISM bands, in chip
Put frequency synthesizer, power amplifier, crystal oscillator and modulator；The wire antenna is welded on circuit board with SMA sockets
On, collectively constitute wireless receiving circuit with radio transmitting and receiving chip peripheral circuit；The microprocessor control module is used to control
The data and the communication of host computer that the work and processing of radio transmitting and receiving chip receive；The serial ports modular converter, will
Transistor-Transistor Logic level switchs to RS485 serial ports level.
A kind of equipment automatic identifying method based on RFID technique, using above-mentioned device, includes the following steps：
（1）The control RFID system work of display terminal control software, and send inquiry instruction；
（2）Low frequency stimulator generates the low-frequency excitation signal of 125KHz, excitation half active rfid electronic tag work；
（3）Half active rfid electronic tag has unique coding, will be in it only when receiving correct pumping signal
The data of portion's storage are sent, and when not being properly received pumping signal, electronic tag is in holding state；
（4）The address of radio frequency receiver automatic identification electronic tag transmitting and data, all data of reception are stored, is whole
Reason, removes the data of repetition, is packaged data according to agreement, and wait is uploaded to controller.Radio frequency receiver is receiving inquiry life
After order, currently stored data are uploaded to controller automatically；
（5）Controller provides power supply for low frequency stimulator and radio frequency receiver, automatically controls driver and receiver powers on
With remove electricity, when controller execution start a query at instruction when, powered on automatically to driver and receiver, scanning electron label；Work as control
When device processed performs inquiry tag instruction, the data being currently stored in receiver are read；Terminate querying command when controller performs
When, automatically control driver and receiver power-off；
（6）Display terminal software inquires about corresponding substance, finally draws scanning result according to the number received.
The beneficial effects of the present invention are：
Equipment automatic identification equipment and automatic identifying method disclosed in this invention based on RFID technique, can be connect by non-
The method automatic identification of touch is compared with multiple target；By using half active rfid electronic tag, electronic tag is greatly improved
Service life；It can far distance controlled driver and receiver operation and automatically scanning electronic tag.
Description of the drawings
Fig. 1 is the course of work schematic diagram of the automatic identification equipment disclosed in the embodiment of the present invention 1；
Fig. 2 is the course of work schematic diagram of the low frequency stimulator of the automatic identification equipment disclosed in the embodiment of the present invention 1；
Fig. 3 is the antenna resonance oscillogram of the low frequency stimulator of the automatic identification equipment disclosed in the embodiment of the present invention 1；
Fig. 4 is the course of work of half active rfid electronic tag of the automatic identification equipment disclosed in the embodiment of the present invention 1
Schematic diagram；
Fig. 5 is the course of work schematic diagram of the radio frequency receiver of the automatic identification equipment disclosed in the embodiment of the present invention 1；
Fig. 6 is the course of work schematic diagram of the controller of the automatic identification equipment disclosed in the embodiment of the present invention 1；
Fig. 7 is the work flow diagram of the automatic identification equipment disclosed in the embodiment of the present invention 1；
Fig. 8 is the system structure diagram of the automatic identification equipment disclosed in the embodiment of the present invention 1.
Specific embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to embodiments, to the present invention
It is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not used to
Limit the present invention.
Embodiment 1, present embodiment discloses a kind of equipment automatic identification equipment based on RFID technique, as shown in Figure 1, its
Workflow is：Instruction is started a query at by display terminal proposition, driver generates 125KHz signals, swashs by low frequency coupled antenna
Half active rfid electronic tag is encouraged, after electronic tag is activated, the label information for being stored in internal is sent out by radio-frequency antenna
It penetrates, receiver reads label information, and label data is arranged, and removes repeated data, is stored according to protocol packing, wait number to be uploaded
According to；Display terminal proposes inquiry tag instruction, and controller starts to read the data of receiver memory storage, and is uploaded to display eventually
End after display terminal handles data, shows scanning result, while notification controller terminates to inquire about.Specific each system design is implemented
It is as follows：
（One）Low frequency stimulator
As shown in Fig. 2, low frequency stimulator includes power supply, transmitting antenna, antenna drive circuit.
Transmitting antenna uses circular coil form, is used as resonant antenna, and 125KHz letters are generated by antenna drive circuit
Number, by resonance, antenna launches resonance signal, and according to control sequence, antenna drive circuit can generate not
Homotactic 125KHz modulated signals.Excitation signal waveforms such as Fig. 3 institutes of its modulated signal, carrier waveform and antenna resonance transmitting
Show.
The antenna drive circuit adjustable antenna peak point current, maximum 1.5A；Frequency can be adjusted in 100KHz-150KHz
It is whole, and can adjust automatically antenna resonant frequency.
（Two）Half active rfid electronic tag
As shown in figure 4, electronic tag is the carrier of system data, the data for representing its identity can be stored inside it.This
The half active electronic label that system uses, when receiving correct pumping signal, the data of its storage inside is sent, not just
When acknowledgement is to pumping signal, electronic tag is in holding state.Its internal circuit is mainly coupled to receive circuit including low frequency and penetrates
Frequency signal transmission circuit.
Low frequency is coupled to receive circuit and has used low frequency wake-up chip and low frequency coupled antenna.Low frequency wake-up chip can be by
Microprocessor controls arousal function, sensitivity, the standby current of 1uA with 1mVrms；Very faint signal can be received, and
And stand-by power consumption is very low, is suitable for working long hours.
Electronic tag receives pumping signal with the mode that low frequency couples, using 125KHz resonance circuits as antenna, due to
The finite volume of electronic tag, it is difficult to use large volume of antenna, therefore resonance is carried out using ordinary inductor and capacitance.It is treating
Under machine pattern, low frequency wake-up chip receives the pumping signal from antenna, when detecting effective carrier wave, sends a wake-up
Signal is to microprocessor, while output data, and after data end of output, microprocessor is by reset signal by low frequency wake-up core
Piece resets, and low frequency wake-up chip returns to standby mode；When detecting invalid carrier wave, low frequency wake-up chip directly returns standby
Pattern.
Radio frequency transmitter circuitry has used wireless transmission chip, and due to volumetric constraint, transmitting antenna uses printed board antenna.It penetrates
The transmit-receive radio road that takes place frequently is mainly to be launched internal data are stored in by antenna, tranmitting frequency 2.4GHz, peak-peak
Electric current is 10mA, power consumption -5dBm；Operating current only 200nA under standby mode.
The supply voltage of electronic tag circuit is 3.3V, is powered using 3.3V button cells, due to electronic tag
It only works when receiving correct signal excitation, in holding state, power consumption very little, therefore button cell when no correct signal encourages
Service life it is longer, be suitble to long-term work.
（Three）Radio frequency receiver
As shown in figure 5, the receiver includes radio receiving transmitting module, serial ports modular converter, microprocessor control module.
Radio receiving transmitting module has used radio transmitting and receiving chip, works in 2.4~2.5GHz ISM bands, built-in chip type frequency
The function modules such as synthesizer, power amplifier, crystal oscillator and modulator, output power and communication channel can by program into
Row configuration.Chip energy consumption is very low, and during with the power emission of -5dBm, operating current only has 10.5mA, and operating current is only during reception
There is 18mA.
Radio frequency receiver uses wire antenna, using the welding of SMA sockets on circuit boards, with radio transmitting and receiving chip peripheral circuit
Collectively constitute wireless receiving circuit.
Microprocessor be used for control radio transmitting and receiving chip nRF2401 work and processing receive data, with it is upper
The communication of machine.Simultaneously it is equipped with one piece of ROM in circuit, inside solidification firmware updating can be risen online when updating software
Grade.The serial ports level of the microprocessor is Transistor-Transistor Logic level, but the data transmission between controller uses RS485 serial ports, therefore is increased
Add serial ports modular converter, Transistor-Transistor Logic level is switched into RS485 serial ports level.
（Four）Controller
As shown in fig. 6, controller, which is mainly driver and receiver, provides power supply, the work of driver and receiver is controlled
Make and carried out with receiver and display terminal the transmission of order and data.
Power supply used in electronic labelling system is direct current 9V, 3.3V, 5V, and 9V points of direct current exports for two-way, respectively to driver
It powers with receiver, device inside chip is powered in order to control by direct current 3.3V and direct current 5V.Therefore input voltage need to be converted into 9V, 5V
With 3.3V DC voltages.Power module has Enable Pin, when Enable Pin is hanging, power module output voltage, when Enable Pin is
During high level, power module cut-out output.Therefore, microprocessor can be by controlling the level of Enable Pin CTRL ports, control
The output and shut-off of power module.Microprocessor controls power module by light-coupled isolation, reduces the crosstalk between circuit.
Controller, which is mainly responsible for, to be received display terminal control instruction, reads receiver storage data, transmits data to display
Terminal and control driver and receiver power on and go electricity.After receiver receives the instruction of display terminal, resolve command, and
Send command adapted thereto.When execution starts a query at order, microprocessor controls driver and receiver power supply by GPIO port
It powers on；When performing inquiry tag order, microprocessor reads the data of receiver return by second serial ports, is temporarily stored in list
In the RAM of piece machine, and it is uploaded to display terminal；After the completion of inquiry, display terminal notification controller terminates to inquire about, controller control
Driver and receiver power-off processed.
It is communicated between controller and receiver and display terminal using RS485 serial ports, the output of microprocessor serial ports is
Transistor-Transistor Logic level, therefore increase serial ports modular converter and carry out level conversion.
（Five）Equipment automatic identification equipment structure design
Driver, receiver, antenna and controller are embedded in by the present apparatus according to actual conditions in inside；It is installed in outside
Communication interface passes through cable connection with display terminal.Since there are reception and transmitting antenna in inside, equipment manager shell is using non-
Metallic composite, can the not fragmentation under -42 degree cryogenic conditions.
（Six）Equipment automatic identification equipment workflow
Equipment automatic identification equipment workflow as shown in fig. 7, controller, receiver and display terminal into line command sum number
During according to communication, verified using CRC7, add the reliability of communication.
（Seven）Display terminal Software for Design
Display terminal software is for managing, exciter equipped and electronic labeling information, control device scan operation.Job step
It is rapid as follows：
Step 1：Driver is numbered in deposit database table；
Step 2：By the correspondence driver number of equipment, label information and essential information deposit database table；
Step 3：Inquire about all devices：All driver number informations are obtained, are powered up for all driver, to all
Driver submit tag queries request, wait label information return；
Step 4：Query device specific：According to facility information, the associated driver number of equipment is got；Swash to associated
It encourages device and is powered up operation, inquiry request is carried out to associated driver, waits label information to be returned；
Step 5：For the label information of return, carry out repeated authentication, classification, most at last the inverting of label coding information into setting
Standby information, to user's presentation device, there are situations.
The present embodiment also discloses a kind of equipment automatic identifying method based on RFID technique, uses above-mentioned device, bag
Include following steps：
（1）The control RFID system work of display terminal control software, and send inquiry instruction；
（2）Low frequency stimulator generates the low-frequency excitation signal of 125KHz, excitation half active rfid electronic tag work；
（3）Half active rfid electronic tag has unique coding, will be in it only when receiving correct pumping signal
The data of portion's storage are sent, and when not being properly received pumping signal, electronic tag is in holding state；
（4）The address of radio frequency receiver automatic identification electronic tag transmitting and data, all data of reception are stored, is whole
Reason, removes the data of repetition, is packaged data according to agreement, and wait is uploaded to controller.Radio frequency receiver is receiving inquiry life
After order, currently stored data are uploaded to controller automatically；
（5）Controller provides power supply for low frequency stimulator and radio frequency receiver, automatically controls driver and receiver powers on
With remove electricity, when controller execution start a query at instruction when, powered on automatically to driver and receiver, scanning electron label；Work as control
When device processed performs inquiry tag instruction, the data being currently stored in receiver are read；Terminate querying command when controller performs
When, automatically control driver and receiver power-off；
（6）Display terminal software inquires about corresponding substance, finally draws scanning result according to the number received.
Claims (7)
1. a kind of equipment automatic identification equipment based on RFID technique, it is characterised in that：The device includes controller, with control
Low frequency stimulator, radio frequency receiver and the display terminal of device electrical connection processed and half active being attached in required identification equipment
Radio electronic label；The display terminal shows for remote control, data processing, scanning result, the low-frequency excitation
Device generates the pumping signal of codified, for encouraging half active rfid electronic tag, half active rfid electronic tag tool
There is unique electronic code, for identifying equipment storage configuration, after pumping signal is received, launch and be stored in inside tags
Information；The radio frequency receiver for read half active rfid electronic tag transmitting signal and to signal decode, and send to
Controller is handled；What the controller was used to controlling low frequency stimulator and radio frequency receiver powers on and goes electricity, radio frequency to connect
Receive the data transmission between device and controller.
2. the equipment automatic identification equipment according to claim 1 based on RFID technique, it is characterised in that：The low frequency
Driver includes transmitting antenna and the antenna drive circuit being electrically connected, and power supply is powered for antenna and antenna drive circuit.
3. the equipment automatic identification equipment according to claim 2 based on RFID technique, it is characterised in that：The transmitting
Antenna uses circular coil form, is used as resonant antenna, and 125KHz signals are generated by antenna drive circuit, by resonance electricity
Road resonance, antenna launch resonance signal, and according to control sequence, antenna drive circuit can generate not homotactic 125KHz
Modulated signal.
4. the equipment automatic identification equipment according to claim 3 based on RFID technique, it is characterised in that：The antenna
Driving circuit adjustable antenna peak point current, maximum 1.5A；Frequency can adjust in 100KHz-150KHz, and can adjust automatically
Antenna resonant frequency.
5. the equipment automatic identification equipment according to claim 1 based on RFID technique, it is characterised in that：Half master
Dynamic radio electronic label is coupled to receive circuit and emission of radio frequency signals circuit and the button cell powered for it including low frequency；Institute
The low frequency stated, which is coupled to receive circuit, to be included low frequency wake-up chip and low frequency coupled antenna and controls what low frequency wake-up chip woke up
Microprocessor, the low frequency coupled antenna carry out resonance using 125KHz inductor, resonant circuits or capacitor resonant circuit；It is described
Emission of radio frequency signals circuit include wireless transmission chip, the transmitting antenna of the wireless transmission chip using printed board antenna,
Tranmitting frequency is 2.4GHz, peak inrush current 10mA, power consumption -5dBm；Operating current 200nA under standby mode.
6. the equipment automatic identification equipment according to claim 1 based on RFID technique, it is characterised in that：The radio frequency
Receiver includes radio receiving transmitting module, serial ports modular converter, microprocessor control module and wire antenna；The wireless receiving and dispatching mould
Block is radio transmitting and receiving chip, works in 2.4~2.5GHz ISM bands, built-in chip type frequency synthesizer, power amplifier, crystal
Oscillator and modulator；The wire antenna is welded on circuit boards with SMA sockets, common with radio transmitting and receiving chip peripheral circuit
Form wireless receiving circuit；The microprocessor control module is used to control the work of radio transmitting and receiving chip and processing connects
The data received and the communication of host computer；Transistor-Transistor Logic level is switched to RS485 serial ports level by the serial ports modular converter.
7. a kind of equipment automatic identifying method based on RFID technique, the device described in usage right requirement 1, which is characterized in that
Include the following steps：
（1）The control RFID system work of display terminal control software, and send inquiry instruction；
（2）Low frequency stimulator generates the low-frequency excitation signal of 125KHz, excitation half active rfid electronic tag work；
（3）Half active rfid electronic tag has unique coding, only when receiving correct pumping signal, will be deposited inside it
The data of storage are sent, and when not being properly received pumping signal, electronic tag is in holding state；
（4）The address of radio frequency receiver automatic identification electronic tag transmitting and data by all data storage of reception, arrange,
The data repeated are removed, are packaged data according to agreement, wait is uploaded to controller, and radio frequency receiver is receiving querying command
Afterwards, currently stored data are uploaded to controller automatically；
（5）Controller provides power supply for low frequency stimulator and radio frequency receiver, automatically controls driver and receiver is powered on and gone
Electricity when controller execution starts a query at instruction, powers on, scanning electron label to driver and receiver automatically；Work as controller
When performing inquiry tag instruction, the data being currently stored in receiver are read；When controller, which performs, terminates querying command, from
Dynamic control driver and receiver power-off；
（6）Display terminal software inquires about corresponding substance, finally draws scanning result according to the number received.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110365358A (en) * | 2019-07-15 | 2019-10-22 | 常州爱索电子有限公司 | A kind of super positioning driver of RFID |
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| CN107945307B (en) * | 2017-11-20 | 2020-07-31 | 北京交大思诺科技股份有限公司 | Railway equipment tracking management system |
| CN109840438A (en) * | 2017-11-24 | 2019-06-04 | 广州市振光科技有限公司 | The intelligent storage article positioning of label is searched based on acousto-optic, searches system |
| CN108495361B (en) * | 2018-02-08 | 2021-08-13 | 黑龙江五世昌科技有限公司 | Electronic tag, data exchange host and electronic tag system |
| CN115567904A (en) * | 2021-07-02 | 2023-01-03 | 中国移动通信有限公司研究院 | Communication method in FRID framework, controller and FRID framework |
| CN113723579B (en) * | 2021-08-26 | 2023-08-22 | 广州赛意信息科技股份有限公司 | Asset dynamic identification edge terminal based on identification and position |
| CN114604543B (en) * | 2021-12-29 | 2024-06-04 | 重庆品胜科技有限公司 | Metering identification system, metering identification method and turnover box |
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| CN202976184U (en) * | 2012-12-13 | 2013-06-05 | 哈尔滨金融学院 | RFID (radio frequency identification) based production line supervision device |
| CN204129915U (en) * | 2014-07-16 | 2015-01-28 | 浙江海康科技有限公司 | A kind of swimming pool locating lifesaving system based on half active RFID technology |
| CN104700144A (en) * | 2015-03-30 | 2015-06-10 | 上海十贝电子科技有限公司 | Tag with two-way triggering function |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110365358A (en) * | 2019-07-15 | 2019-10-22 | 常州爱索电子有限公司 | A kind of super positioning driver of RFID |
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