CN105787544B - Double-frequency electronic label system - Google Patents
Double-frequency electronic label system Download PDFInfo
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- CN105787544B CN105787544B CN201610110952.8A CN201610110952A CN105787544B CN 105787544 B CN105787544 B CN 105787544B CN 201610110952 A CN201610110952 A CN 201610110952A CN 105787544 B CN105787544 B CN 105787544B
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Classifications
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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
- G06K19/0724—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 being a circuit for communicating at a plurality of frequencies, e.g. for managing time multiplexed communication over at least two antennas of different types
-
- 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
- G06K19/072—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 a plurality of integrated circuit chips
Abstract
The present invention discloses a kind of double-frequency electronic label system, antenna activation source, comprising: memory, for storing each low-frequency antenna ID coding and antenna activation source ID coding；Low frequency radio frequency circuit and several low-frequency antennas being connected with low frequency radio frequency circuit, the low frequency radio frequency circuit includes concatenated with door and power MOS pipe drive module, it is described with door for will the data signal modulation from governor circuit to 125KHz carrier signal formation low frequency activation signal；The power control circuit between low frequency radio frequency circuit and governor circuit, the power control circuit is for adjusting low-frequency antenna transmission power；Low-frequency antenna ID coding, antenna activation source ID from memory are encoded the low frequency activation signal for containing low-frequency antenna ID coding, antenna activation source ID coding and operating mode information by low frequency radio frequency circuit evolving according to set operating mode by governor circuit.Invention increases the coverage areas of low frequency signal, improve the stability of low frequency signal, solve the interference problem between each antenna.
Description
Technical field
The present invention relates to field of radio frequency identification more particularly to a kind of double-frequency electronic label systems.
Background technique
In recent years, Internet of Things is a new technology of people's common concern, one as Internet of Things of Radio Frequency Identification Technology
Key technology is rapidly developed.The management of the complex environments such as cell, mining area, highway is constantly subjected to national departments concerned
Pay much attention to, but due to caused by negligent supervision dispute even accident still occur repeatedly, cause many personal and country
Interests unnecessary loss.How Strengthening managing measure, how accurate, real-time, fast grasp residential area Nei Feiben is small
The Efficient Operation of area's personnel state, mining area personnel distribution and mobility status, highway toll efficiency and burst accident rescue is state
Relevant department of family problem in the urgent need to address.Change backward management mode, realizes that the modernization of management, informationization are from root
The important channel solved these problems in sheet.
Currently, the low frequency activation source used in practice is all single antenna, the transmitting range of activate source is usually on 5 meters of left sides
The right side, range of signal is smaller, is easy activation less than label, and low-frequency antenna has certain directionality, the low frequency that it is emitted
Signal field is not circular but oval, which results in the signal strength of label in different directions is inconsistent, even
There is no signal, therefore cannot be accurately positioned yet, brings many inconvenient and trouble to management.Meanwhile also just due to existing low frequency
Activate source is single antenna, and people must cover identical region to arrange more equipment, and when installation
It has to be ensured that their signal cannot have intersection, it otherwise will interfere with each other and generate signal blind zone, so, both increase
Equipment cost, also increases difficulty of construction, and after multiple antennas low frequency activation source comes out, competitiveness just shows very low
Under.
Summary of the invention
The present invention provides a kind of double-frequency electronic label system, this double-frequency electronic label system increases the covering of low frequency signal
Range improves the stability of low frequency signal, solves the interference problem between each antenna, may be implemented be accurately positioned, identify away from
, multiple card reader small from signal cover that is adjustable, solving single antenna activate source read the same electronic tag and not simultaneously
Stable puzzlement, and power consumption is reduced, the service life of battery is extended, it can long trouble free running.
In order to achieve the above objectives, the technical solution adopted by the present invention is that: a kind of double-frequency electronic label system, including antenna swash
Work-source, dual-band radio frequency electronic tag and card reader, antenna activation source launch outward low frequency activation according to the operating mode of setting and believe
Number, the dual-band radio frequency electronic tag receives low frequency activation signal and will add intensity mark letter after low frequency activation signal resolution
Number, electronic tag ID number modulates information at high-frequency coding signal, the card reader receives this high-frequency coding signal；
The antenna activation source, comprising: memory is compiled for storing each low-frequency antenna ID coding and antenna activation source ID
Code；
Low frequency radio frequency circuit and several low-frequency antennas being connected with low frequency radio frequency circuit, the low frequency radio frequency circuit include
Concatenated and door and power MOS pipe drive module, it is described to be used to arrive the data signal modulation from governor circuit with door
125KHz carrier signal forms low frequency activation signal, and the power MOS pipe drive module puts low frequency activation signal progress power
It is big to generate low frequency radio frequency signal；
The power control circuit between low frequency radio frequency circuit and governor circuit, the power control circuit is for adjusting low frequency
Antenna transmission power；
First toggle switch, the first toggle switch one end are connected to the governor circuit, and the other end is connected to for setting
The second toggle switch, RS485 communicating circuit and high frequency wireless module of operating mode are set, the operating mode includes effective day
Line number mesh, the order of work of each antenna, the transmission power of each antenna, each antenna operating time；Second dial-up
Respectively the other end is all connected to the governor circuit, the RS485 communication for switch, RS485 communicating circuit and high frequency wireless module
By carrying out configuration of the signal realization of automatic network to governor circuit operating mode, the high frequency wireless module passes through to be come wirelessly circuit
Realize the configuration to governor circuit operating mode；
Governor circuit encodes the low-frequency antenna ID from memory according to set operating mode, antenna activation source
ID coding contains low-frequency antenna ID coding, antenna activation source ID coding and operating mode information by low frequency radio frequency circuit evolving
Low frequency activation signal；
The dual-band radio frequency electronic tag, comprising:
Low frequency reception antenna for receiving the low frequency radio frequency signal from antenna activation source, and is generated and is compiled containing signal source
The inductive signal of code；
Low-frequency channel generates low-frequency information signal according to the inductive signal from low frequency reception antenna；
High-frequency circuit, for by the intensity id signal from microcontroller, signal source code and electronic tag ID number tune
Encoded signal is made；
High frequency antenna, for encoded signal to be emitted in space by high frequency carrier；
It is stored with the microcontroller of electronic tag ID number, suspend mode and starting are realized according to the low-frequency information signal
The switching of state, this microcontroller are programmed to:
Step 1: read the low-frequency information signal and intensity id signal is generated according to its intensity,
Step 2: analyze and extract the low-frequency information signal and signal source code is generated according to it,
Step 3: starting timer interruption in a time interval, under interrupt status, successively executes: opening the height
Frequency circuit closes the high-frequency circuit and opens low-frequency channel,
Step 4: then exiting the timer interruption when the duration reaches the time interval.
The further improved technical solution of above-mentioned technical proposal is as follows:
1. in above scheme, the antenna activation source further includes a signal lamp for being connected to the governor circuit,
For showing the working condition in antenna activation source.
2. in above scheme, the antenna activation source further includes a power-switching circuit, for being provided to antenna activation source
Electric energy.
3. in above scheme, further including a lithium battery for being connected to dual-band radio frequency electronic tag, being used to provide power supply；
Voltage detection unit between the lithium battery and microcontroller, the interpretation compared with threshold voltage by the voltage from power supply
The electricity size of the lithium battery.
4. in above scheme, further including an indicator light, being connected to the microcontroller, be used to indicate dual band radio frequency electronics
The working condition of label.
5. in above scheme, the frequency of the low frequency signal is 125KHz.
6. in above scheme, the frequency of the high frequency carrier is 2.45GHz.
Due to the above technical solutions, the present invention has the following advantages over the prior art:
1, double-frequency electronic label system of the present invention increases the coverage area of low frequency signal, improves the stabilization of low frequency signal
Property, the interference problem between each antenna is solved, may be implemented to be accurately positioned, identify apart from adjustable, solution single antenna activate source
Signal cover is small, multiple card reader read the same electronic tag and unstable puzzlement simultaneously, and reduce power consumption,
The service life of battery is extended, it can long trouble free running.
2, double-frequency electronic label system of the present invention is due to using multiple antennas circuit design, signal cover is relatively wide,
Signal stabilization is high, and working frequency is 125KHz, and realization is easier, and circuit is simple, low in cost, answers convenient for promoting
With；It uses various ways to adjust transmission power, keeps installation more flexible, is more convenient.
3, double-frequency electronic label system of the present invention just arrives low frequency and high-frequency circuit, wire communication and wireless communication line
Place is fused together, so that working performance is more reliable, use is more convenient, and user is more easily accepted by use.
4, double-frequency electronic label system of the present invention is designed using the adjustable mode of transmission power, makes its signal cover can
It adjusts, can adapt to more different application environments.
5, double-frequency electronic label system of the present invention by low frequency with high-frequency circuit is just right merges in a tag system
In, so that power consumption is lower, waking up distance can be accurately controlled within the scope of 0.5 ~ 7 meter, and data communication is apart from unaffected.
6, double-frequency electronic label system software programming of the present invention uses unique mode, so that using extremely simple,
User is only with carrying, and into when waking up region, system will automatically process relevant information.
Detailed description of the invention
Attached drawing 1 is double-frequency electronic label system structure diagram of the present invention；
Attached drawing 2 is low frequency radio frequency circuit and low frequency antenna circuit schematic diagram in double-frequency electronic label system of the present invention；
Attached drawing 3 is power control circuit electrical schematics in double-frequency electronic label system of the present invention；
Attached drawing 4 is antenna activation source main program flow chart in double-frequency electronic label system of the present invention；
Attached drawing 5 is that antenna activation source controls subroutine flow chart in double-frequency electronic label system of the present invention；
Attached drawing 6 is double-frequency electronic label system medium-high frequency wireless data communication subroutine flow chart of the present invention；
Attached drawing 7 is RS485 communicating circuit subroutine flow chart in double-frequency electronic label system of the present invention；
Attached drawing 8 is hardware system structure schematic diagram of the present invention；
Attached drawing 9 is main program flow chart of the present invention；
Attached drawing 10 is external wake interrupt service subroutine flow chart of the present invention；
Attached drawing 11 is that timer 1 of the present invention interrupts (high-frequency data transmission) service subprogram flow chart；
Attached drawing 12 is that timer 2 of the present invention interrupts (timing configured) service subprogram flow chart.
In the figures above: 2, dual-band radio frequency electronic tag；3, card reader；4, memory；5, low frequency radio frequency circuit；51, with
Door；52, power MOS pipe drive module；6, low-frequency antenna；7, governor circuit；8, power control circuit；9, the first toggle switch；
10, the second toggle switch；11, RS485 communicating circuit；12, high frequency wireless module；13, low frequency reception antenna；14, low-frequency channel；
15, high-frequency circuit；16, microcontroller；17, high frequency antenna；18, signal lamp；19, power-switching circuit；20, lithium battery；
21, voltage detection unit；22, indicator light.
Specific embodiment
The invention will be further described with reference to the accompanying drawings and embodiments:
Embodiment: a kind of double-frequency electronic label system, including antenna activation source, dual-band radio frequency electronic tag 2 and card reader
3, antenna activation source launches outward low frequency activation signal according to the operating mode of setting, and the dual-band radio frequency electronic tag 2 receives
Low frequency activation signal simultaneously will add intensity id signal, electronic tag ID number modulates information into high frequency after low frequency activation signal resolution
Encoded signal, the card reader 3 receive this high-frequency coding signal；
The antenna activation source, comprising: memory 4, for storing each low-frequency antenna ID coding and antenna activation source ID
Coding；
Low frequency radio frequency circuit 5 and several low-frequency antennas being connected with low frequency radio frequency circuit 56, the low frequency radio frequency circuit 5
Including concatenated with door 51 and power MOS pipe drive module 52, described be used for door 51 will be from the 125KHz phase of governor circuit
To high-frequency carrier signal together with 4KHz rather low-frequency data-signal hybrid modulation, become the relative high frequency for being easy to antenna transmitting
(125KHz) signal (claim signal-A), the voltage of signal-A signal is 3V, electric current 5mA, and power only has 15mW, passes through day
Line is not enough to reach ideal using effect after launching, so increase power amplification circuit hereafter, i.e., the described function
Rate metal-oxide-semiconductor drive module 52, the module amplify the low-power signal signal-A of 3V/5mA by its voltage by voltage and current
It is enlarged into 12V, 200mA respectively with electric current, the signal (claiming singal-B) that power is 2.4W, power amplification multiple is 160 times, with
Signal-B is sent to low-frequency antenna 6 afterwards, and wired electric signal is converted to electromagnetic wave by LC oscillating circuit by low-frequency antenna 6
Form is emitted in air；
The power control circuit 8 between low frequency radio frequency circuit 5 and governor circuit 7, the power control circuit 8 is for adjusting
6 transmission power of low-frequency antenna；
First toggle switch 9,9 one end of the first toggle switch are connected to the governor circuit 7, and the other end, which is connected to, to be used for
The second toggle switch 10, RS485 communicating circuit 11 and the high frequency wireless module 12 of operating mode are set, and the operating mode includes
Effective number of antennas, the order of work of each antenna, the transmission power of each antenna, each antenna operating time；It is described
Second toggle switch 10, RS485 communicating circuit 11 and the respective other end of high frequency wireless module 12 are all connected to the governor circuit
7, the RS485 communicating circuit 11 is by coming configuration of the signal realization of automatic network to 7 operating mode of governor circuit, the high frequency
Wireless module 12 wirelessly realizes the configuration to 7 operating mode of governor circuit by coming；
Governor circuit 7 encodes the low-frequency antenna ID from memory 4 according to set operating mode, antenna activation
ID coding in source is generated by low frequency radio frequency circuit 5 containing low-frequency antenna ID coding, antenna activation source ID coding and operating mode letter
The low frequency activation signal of breath；
The dual-band radio frequency electronic tag 2, comprising:
Low frequency reception antenna 13 for receiving the low frequency radio frequency signal from antenna activation source 1, and generates and contains signal source
The inductive signal of coding；
Low-frequency channel 14 generates low-frequency information signal according to the inductive signal from low frequency reception antenna 13；
High-frequency circuit 15, for by intensity id signal, signal source code and electronic tag ID from microcontroller 16
Number it is modulated into encoded signal；
High frequency antenna 17, for encoded signal to be emitted in space by high frequency carrier；
It is stored with the microcontroller 16 of electronic tag ID number, suspend mode is realized according to the low-frequency information signal and is opened
The switching of dynamic state, this microcontroller 16 are programmed to:
Step 1: read the low-frequency information signal and intensity id signal is generated according to its intensity,
Step 2: analyze and extract the low-frequency information signal and signal source code is generated according to it,
Step 3: starting timer interruption in a time interval, under interrupt status, successively executes: opening the height
Frequency circuit 15 closes the high-frequency circuit 15 and opens low-frequency channel 14,
Step 4: then exiting the timer interruption when the duration reaches the time interval.
Above-mentioned antenna activation source 1 further includes a signal lamp 18 for being connected to the governor circuit 7, is used to show day
The working condition of line activate source 1.
Above-mentioned antenna activation source further includes a power-switching circuit 19, for providing electric energy to antenna activation source 1；This lithium electricity
Pond 6 is soft package lithium battery, and the energy density of lithium battery is high, and the lithium battery of Soft Roll form is small in size, is suitble to make in electronic tag
With.
Further include: one is connected to the lithium battery 20 of dual-band radio frequency electronic tag 2, is used to provide power supply；Positioned at the lithium
Voltage detection unit 21 between battery 20 and microcontroller 16, by the voltage from power supply compared with threshold voltage described in interpretation
The electricity size of lithium battery 20.Voltage detection unit between the lithium battery and microcontroller, by the electricity from power supply
The electricity size of the lithium battery described in interpretation compared with threshold voltage is pressed, this battery electricity detection method is electric resistance partial pressure detection, benefit
With AD converter included inside single-chip microcontroller, it can accurately determine that the voltage of battery reduces compared with external A/D converter
The power consumption of label, while the cost of label is reduced again, be conducive to promote the use of.
Further include an indicator light 22, is connected to the microcontroller 16, is used to indicate the work of dual-band radio frequency electronic tag 2
State.
The frequency of above-mentioned low frequency signal is 125KHz, and the frequency of above-mentioned high frequency carrier is 2.45GHz.
The high frequency antenna is located on circuit board, and data when communication include the number of low frequency signal source, low frequency letter
Number intensity, the ID number of itself, battery level information.The low-frequency antenna can be also possible to 3D antenna, one-dimensional day with one-dimensional antenna
Line has directional effect, and 3D antenna is not limited by direction.The signal lamp is light emitting diode.The system power supply battery
Form is soft package lithium battery.The battery electricity detection method is electric resistance partial pressure detection.
The software that the microcontroller 16 is embedded in a number and its signal strength for analyzing low frequency signal source is calculated
Method and one group of software algorithm for reducing power consumption.Fig. 2,3,4,5 are the flow charts of the software algorithm.
Low frequency signal parser is explained: for the signal of low frequency signal source transmitting as unit of frame, each frame data include frame
Head, data start flag, data, end-of-data mark, data check.Dual-frequency label is in the frame for receiving low frequency signal source transmitting
When head information, just starts to start AD conversion, the average value of frame head part transformation result is calculated, and as signal strength
Value then proceedes to receive low frequency signal, continues to convert, and with resulting signal strength indication come the data obtained after determining.When one
After frame data receive, then the frame data are analyzed, it is legal, it uses, non-rule abandons.Later low frequency part continue into
Enter the extremely low signal of power consumption and listens to mode.
The distance between the dual-frequency label and low frequency signal source can be accurately judged according to low frequency signal intensity value, from
And the communication distance that can accurately control low frequency part indirectly also corresponds to control high frequency section between 0.5 ~ 7 meter
Communication distance.
When using above-mentioned dual-band radio frequency electronic tag, using the characteristic of radio-frequency signal, 125KHz low frequency signal exists
Propagation rate in air can achieve 4Kbps, and the aerial spread speed of 2.45GHz high-frequency signal can achieve 2Mbps.
Required electric current is about 13mA when system works, and it is standby when required electric current be only 3uA, therefore we are by two frequency ranges
The communication speed of radio is disposed as highest 4Kbps and 2Mbps.Time used in so identical communication data amount is just most
Short, the time of system standby, consumed energy was with regard to minimum, and the service life of battery is with regard to longer with regard to longest；Secondly, may be implemented
Closely triggering wakes up, on the one hand the function of remote data communication has reached pinpoint purpose, on the other hand due to this
The electronic tag overwhelming majority time is in deep sleep state, and power consumption is extremely low, and the electricity of single lithium battery can be allow for it
Using the longer time, extend the service life of label.
Dual-frequency label circuit board is in deep sleep shape under normal circumstances after installation battery, encapsulation, test factory
State, power consumption is extremely low, and overall power is about in 3uA.Only in personnel or the object for carrying double-frequency electronic label (abbreviation dual-frequency label)
When body enters coverage area (0.5-7m) of low frequency signal source, the low frequency signal detecting chip of dual-frequency label can just detect this letter
Number, and immediately wake up the MCU of dormant state, make it into working condition.Then the number of low frequency signal source, low frequency are believed again
Number intensity, the battery level information of dual-frequency label, dual-frequency label ID number (and other information) according to the format of regulation with high frequency
Form be sent to apart from farther away card reader or double-frequency card reader.According to this it can be seen that the dual-frequency label has a characteristic that
It closely wakes up, telecommunication, and wake source is it is found that wake up known to distance.Avoid card reading distance due to card reader compared with
The problem of far influencing each other.After card reader receives high-frequency wireless signals, the data that can be obtained according to fixed format parsing,
And these data are temporarily stored in reader respectively and are neutralized according to fixed agreement with wired (RS485/RS232/ Ethernet/light
Deng) or the mode of wireless (GPRS/CDMA/WIFI/3G etc.) these information are uploaded to manage and dispatch center.Long-range manage and dispatch
After center receives data, so that it may make corresponding judgement accordingly, and do the work such as further manage and dispatch.
Multiple antennas low frequency activation source is dispatched from the factory after tested, after installing and setting operating mode, is begun to setting
Operating mode ceaselessly launches outward low frequency activation signal, this low frequency activation signal includes the ID coding and equipment of each antenna
ID coding.When the carrier for carrying double-frequency electronic label enters or passes into signal coverage areas, the signal will be received,
Then label sends card reader for some information for adding label itself after signal resolution with high frequency regimes.It is wrapped in this information
Contain following content: the ID of each antenna in the ID of multiple antennas activate source, activate source, signal strength when receiving signal, mark
The electricity of label, the ID number of label, other information (temperature, humidity, pressure, gravity, speed etc.) etc..Card reader is again in these information
In add oneself ID, final information is then uploaded to upper level management module.Form there are many management module is possible, than
Such as: 1, can be a controller field application equipment, this equipment will carry out at the scene information processing and make corresponding management
Movement, for people's service.2, can be Remote management center operation user application software, the software to these information at
It after reason, or achieves or prompts or continue as other equipment and data etc. are provided, to instruct relevant work personnel are further to be worked.
The above embodiments merely illustrate the technical concept and features of the present invention, and its object is to allow person skilled in the art
Scholar cans understand the content of the present invention and implement it accordingly, and it is not intended to limit the scope of the present invention.It is all according to the present invention
Equivalent change or modification made by Spirit Essence, should be covered by the protection scope of the present invention.
Claims (2)
1. a kind of double-frequency electronic label system, it is characterised in that: including antenna activation source (1), dual-band radio frequency electronic tag (2) and
Card reader (3), antenna activation source (1) launch outward low frequency activation signal, the dual band radio frequency electricity according to the operating mode of setting
Subtab (2) receives low frequency activation signal and will add intensity id signal, electronic tag ID number after low frequency activation signal resolution
Modulates information receives this high-frequency coding signal at high-frequency coding signal, the card reader (3)；
The antenna activation source (1), comprising: memory (4), for storing each low-frequency antenna ID coding and antenna activation source ID
Coding；
Low frequency radio frequency circuit (5) and several low-frequency antennas (6) being connected with low frequency radio frequency circuit (5), the low frequency radio frequency electricity
Road (5) includes concatenated and door (51) and power MOS pipe drive module (52), described to be used to that governor circuit will be come from door (51)
Data signal modulation to 125KHz carrier signal formed low frequency activation signal, the power MOS pipe drive module (52) will be low
Frequency activation signal carries out power amplification and generates low frequency radio frequency signal；
Power control circuit (8) between low frequency radio frequency circuit (5) and governor circuit (7), the power control circuit (8) are used
In adjusting low-frequency antenna (6) transmission power；
First toggle switch (9), the first toggle switch (9) one end are connected to the governor circuit (7), and the other end is connected to use
In the second toggle switch (10), RS485 communicating circuit (11) and the high frequency wireless module (12) of setting operating mode, the work
Mode include effective number of antennas, the order of work of each antenna, the transmission power of each antenna, each antenna work when
It is long；Respectively the other end is all connected to for second toggle switch (10), RS485 communicating circuit (11) and high frequency wireless module (12)
The governor circuit (7), the RS485 communicating circuit (11) are realized by carrying out the signal of automatic network to governor circuit (7) work
The configuration of mode, the high frequency wireless module (12) is by carrying out configuration of the line realization to governor circuit (7) operating mode；
Governor circuit (7), will be from low-frequency antenna ID coding, the antenna activation of memory (4) according to set operating mode
ID coding in source is generated by low frequency radio frequency circuit (5) containing low-frequency antenna ID coding, antenna activation source ID coding and operating mode
The low frequency activation signal of information；
The dual-band radio frequency electronic tag (2), comprising:
Low frequency reception antenna (13) for receiving the low frequency radio frequency signal from antenna activation source (1), and generates and contains signal source
The inductive signal of coding；
Low-frequency channel (14) generates low-frequency information signal according to the inductive signal from low frequency reception antenna (13)；
High-frequency circuit (15), for intensity id signal, signal source code and the electronic tag ID of microcontroller (16) will to be come from
Number it is modulated into encoded signal；
High frequency antenna (17), for encoded signal to be emitted in space by high frequency carrier；
It is stored with the microcontroller (16) of electronic tag ID number, suspend mode and starting are realized according to the low-frequency information signal
The switching of state, this microcontroller (16) are programmed to:
Step 1: read the low-frequency information signal and intensity id signal is generated according to its intensity,
Step 2: analyze and extract the low-frequency information signal and signal source code is generated according to it,
Step 3: starting timer interruption in a time interval, under interrupt status, successively executes: opening the high-frequency electrical
Road (15) closes the high-frequency circuit (15) and opens low-frequency channel (14),
Step 4: then exiting the timer interruption when the duration reaches the time interval；
The antenna activation source (1) further includes a signal lamp (18) for being connected to the governor circuit (7), is used to show
The working condition in antenna activation source (1).
2. double-frequency electronic label system according to claim 1, it is characterised in that: the frequency of the high frequency carrier is
2.45GHz。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610110952.8A CN105787544B (en) | 2013-11-27 | 2013-11-27 | Double-frequency electronic label system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310613605.3A CN103646230B (en) | 2013-11-27 | 2013-11-27 | Radio-frequency recognition system based on double-frequency electronic label |
| CN201610110952.8A CN105787544B (en) | 2013-11-27 | 2013-11-27 | Double-frequency electronic label system |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310613605.3A Division CN103646230B (en) | 2013-11-27 | 2013-11-27 | Radio-frequency recognition system based on double-frequency electronic label |
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| CN105787544A CN105787544A (en) | 2016-07-20 |
| CN105787544B true CN105787544B (en) | 2019-02-01 |
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| CN106406200B (en) * | 2016-09-23 | 2017-10-27 | 华中科技大学 | A kind of monitoring system of cascaded logic door-controlled type active electronic label |
| CN108828572A (en) * | 2018-08-24 | 2018-11-16 | 杭州物必连科技有限公司 | A kind of Internet of Things Web robot, articles from the storeroom positioning system and localization method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101441706A (en) * | 2008-11-28 | 2009-05-27 | 武汉理工大学 | Double-activating method of active electronic label |
| CN202373001U (en) * | 2011-11-24 | 2012-08-08 | 中船重工(武汉)凌久信息技术有限公司 | Low-frequency activated passive active radio frequency identification device |
| CN103164730A (en) * | 2011-12-09 | 2013-06-19 | 苏州木兰电子科技有限公司 | Dual-frequency radio frequency electronic tag |
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| US20060125602A1 (en) * | 2004-12-09 | 2006-06-15 | Joshua Posamentier | Active multiplexer for a multiple antenna transceiver |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101441706A (en) * | 2008-11-28 | 2009-05-27 | 武汉理工大学 | Double-activating method of active electronic label |
| CN202373001U (en) * | 2011-11-24 | 2012-08-08 | 中船重工(武汉)凌久信息技术有限公司 | Low-frequency activated passive active radio frequency identification device |
| CN103164730A (en) * | 2011-12-09 | 2013-06-19 | 苏州木兰电子科技有限公司 | Dual-frequency radio frequency electronic tag |
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