CN103646228A - Multi-antenna activation source used for radio frequency identification - Google Patents
Multi-antenna activation source used for radio frequency identification Download PDFInfo
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- CN103646228A CN103646228A CN201310612973.6A CN201310612973A CN103646228A CN 103646228 A CN103646228 A CN 103646228A CN 201310612973 A CN201310612973 A CN 201310612973A CN 103646228 A CN103646228 A CN 103646228A
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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
- G06K7/10356—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 using a plurality of antennas, e.g. configurations including means to resolve interference between the plurality of antennas
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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
- G06K7/0008—General problems related to the reading of electronic memory record carriers, independent of its reading method, e.g. power transfer
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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
- G06K7/10198—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 setting parameters for the interrogator, e.g. programming parameters and operating modes
- G06K7/10217—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 setting parameters for the interrogator, e.g. programming parameters and operating modes parameter settings controlling the transmission power of the interrogator
Abstract
The invention discloses a multi-antenna activation source used for radio frequency identification. The multi-antenna activation source includes a memory, a low-frequency radio frequency circuit which includes an AND gate and a power MOS transistor driving module which are in series connection, a plurality of low-frequency antennas which are connected with the low-frequency radio frequency circuit, a power control circuit which is located between the low-frequency radio frequency circuit and a main control circuit and is used for adjusting the transmitting power of the low-frequency antennas, a first thin code switch, an RS485 communication circuit, a high-frequency wireless module, and a main control circuit which is used for converting low-frequency antenna ID codes and antenna activation source ID codes from the memory into low-frequency activation signals containing the low-frequency antenna ID codes, the antenna activation source ID codes and working mode information through the low-frequency radio frequency circuit according to set working modes; and one end of the first thin code switch is connected with the main control circuit, and the other end of the first thin code switch connected with a second thin code switch used for setting the working modes. With the multi-antenna activation source used for the radio frequency identification of the invention adopted, the coverage of low-frequency signals can be increased; the stability of the low-frequency signals can be improved; the problem of interference among the antennas can be solved; and precise positioning and recognition distance adjustability can be realized.
Description
Technical field
The present invention relates to radio frequency identification field, relate in particular to a kind of activation of source of many antennas for radio-frequency (RF) identification.
Background technology
In recent years, Internet of Things is a new technology of people's common concern, and REID has obtained development rapidly as a gordian technique of Internet of Things.The management of the complex environments such as community, mining area, highway is subject to the great attention of national departments concerned always, but the dispute causing due to negligent supervision even accident still occur repeatedly, cause the unnecessary loss of a lot of individuals and national interests.Strengthening managing measure how, how the Efficient Operation of Nei Feiben community, accurate, real-time, fast grasp residential quarter personnel state, mining area personnel's distribution and mobility status, highway toll efficiency and burst accident rescue is national departments concerned problem in the urgent need to address.Change the management mode falling behind, the modernization, the informationization that realize management are the important channels fundamentally addressing these problems.
At present, the low frequency activation of source using is in practice all single antenna, the transmitting range of activation of source is conventionally 5 meters of left and right, and range of signal is less, easily activates less than label, and low-frequency antenna has certain directivity, the low frequency signal field that it is launched is not positive circular but oval-shaped, and this has just caused the signal intensity of label in different directions inconsistent, even there is no signal, therefore also just can not accurately locate, to management, bring a lot of inconvenience and trouble.Simultaneously, also just because existing low frequency activation of source is single antenna, people must arrange that more equipment covers identical region, and the signal that must guarantee them in installation can not have intersection, otherwise will phase mutual interference and produce signal blind zone, so, both increased equipment cost, also increased difficulty of construction, after many antennas low frequency activation of source comes out, competitive power just shows very lowly.
Summary of the invention
The invention provides a kind of activation of source of many antennas for radio-frequency (RF) identification, this radio-frequency recognition system has increased the coverage of low frequency signal, improve the stability of low frequency signal, solve the interference problem between each antenna, little, a plurality of card reader of signal cover that can realize accurate location, decipherment distance is adjustable, solves single antenna activation of source is read same electronic tag and unsettled puzzlement simultaneously, and reduced power consumption, and extended the serviceable life of battery, can long-term non-fault running.
For achieving the above object, the technical solution used in the present invention is: a kind of activation of source of many antennas for radio-frequency (RF) identification, comprising: storer, for depositing each low-frequency antenna ID coding and antenna activation of source ID coding;
Low frequency radio frequency circuit and several low-frequency antennas being connected with low frequency radio frequency circuit, described low frequency radio frequency circuit comprise series connection with door and power MOS pipe driver module, described and door forms low frequency activation signal for the data signal modulation from governor circuit is arrived to 125KHz carrier signal, and described power MOS pipe driver module carries out power amplification generation low frequency radio frequency signal by low frequency activation signal;
Power control circuit between low frequency radio frequency circuit and governor circuit, this power control circuit is used for regulating low-frequency antenna emissive power;
The first thin code switch, this the first thin code switch one end is connected to described governor circuit, the other end is connected to for the second thin code switch, RS485 communicating circuit and the high frequency wireless module of mode of operation are set, and described mode of operation comprises the order of work of effective number of antennas, each antenna, the work duration of the emissive power of each antenna, each antenna; Described the second thin code switch, RS485 communicating circuit and high frequency the wireless module separately other end are all connected to described governor circuit, described RS485 communicating circuit is by coming the signal of automatic network to realize the configuration to governor circuit mode of operation, and described high frequency wireless module is by carrying out the configuration of wireless realization to governor circuit mode of operation;
Governor circuit, the low frequency activation signal that the low-frequency antenna ID coding from storer, antenna activation of source ID coding is contained to low-frequency antenna ID coding, antenna activation of source ID coding and mode of operation information by low frequency radio frequency circuit evolving according to the mode of operation setting.
The further improved technical scheme of technique scheme is as follows:
1. in such scheme, described antenna activation of source also comprises that one is connected to the signal lamp of described governor circuit, and it is for showing the duty of antenna activation of source.
2. in such scheme, described antenna activation of source also comprises a power-switching circuit, for electric energy being provided to antenna activation of source.
3. in such scheme, the frequency of described low frequency signal is 125KHz.
4. in such scheme, the frequency of described high frequency carrier is 2.45GHz.
Because technique scheme is used, the present invention compared with prior art has following advantages:
1, radio-frequency recognition system of the present invention has increased the coverage of low frequency signal, improve the stability of low frequency signal, solve the interference problem between each antenna, little, a plurality of card reader of signal cover that can realize accurate location, decipherment distance is adjustable, solves single antenna activation of source is read same electronic tag and unsettled puzzlement simultaneously, and reduced power consumption, extended the serviceable life of battery, can long-term non-fault running.
2, radio-frequency recognition system of the present invention is owing to having adopted the design of many antenna circuits, and signal cover is relatively wider, signal stabilization is high, and frequency of operation is 125KHz, realizes than being easier to, and circuit is simple, with low cost, easy to utilize; It adopts various ways to regulate emissive power, makes installation more flexible, more convenient.
3, radio-frequency recognition system of the present invention, by low frequency and just right the merging of high-frequency circuit, wire communication and wireless communication line, makes serviceability more reliable, and it is more convenient to use, and user Geng Yi accepts use.
4, radio-frequency recognition system of the present invention adopts the adjustable mode of emissive power to design, and makes its signal cover adjustable, can adapt to how different applied environments.
5, radio-frequency recognition system of the present invention, by low frequency and the just right fusion of high-frequency circuit in a tag system, makes power consumption lower, and waking distance up can accurately be controlled within the scope of 0.5 ~ 7 meter, and data communication distance is unaffected.
6, radio-frequency recognition system applicating software programming of the present invention adopts unique mode, makes use very simple, and user, only with carrying, enters while waking region up, and system is processing relevant information automatically.
Accompanying drawing explanation
Accompanying drawing 1 is many antennas of the present invention activation of source structural representation;
Accompanying drawing 2 is low frequency radio frequency circuit of the present invention and low-frequency antenna circuit diagram;
Accompanying drawing 3 is power control circuit electrical schematics in radio-frequency recognition system of the present invention;
Accompanying drawing 4 is antenna activation of source main program flow chart in radio-frequency recognition system of the present invention;
Accompanying drawing 5 is antenna activation of source control subroutine flow chart in radio-frequency recognition system of the present invention;
Accompanying drawing 6 is radio-frequency recognition system medium-high frequency wireless data communication subroutine flow chart of the present invention;
Accompanying drawing 7 is RS485 communicating circuit subroutine flow chart in radio-frequency recognition system of the present invention.
In above accompanying drawing: 1, signal lamp; 2, power-switching circuit; 3, high frequency wireless module; 4, storer; 5, low frequency radio frequency circuit; 51, with door; 52, power MOS pipe driver module; 6, low-frequency antenna; 7, governor circuit; 8, power control circuit; 9, the first thin code switch; 10, the second thin code switch; 11, RS485 communicating circuit.
Embodiment
Below in conjunction with drawings and Examples, the invention will be further described:
Embodiment: a kind of activation of source of many antennas for radio-frequency (RF) identification, comprising: storer 4, for depositing each low-frequency antenna ID coding and antenna activation of source ID coding;
Low frequency radio frequency circuit 5 and several low-frequency antennas 6 being connected with low frequency radio frequency circuit 5, described low frequency radio frequency circuit 5 comprise series connection with door 51 and power MOS pipe driver module 52, described and door 51 forms low frequency activation signal for the data signal modulation from governor circuit is arrived to 125KHz carrier signal, and described power MOS pipe driver module 52 carries out power amplification by low frequency activation signal and generates low frequency radio frequency signal;
The first thin code switch 9, these the first thin code switch 9 one end are connected to described governor circuit 7, the other end is connected to for the second thin code switch 10, RS485 communicating circuit 11 and the high frequency wireless module 3 of mode of operation are set, and described mode of operation comprises the order of work of effective number of antennas, each antenna, the work duration of the emissive power of each antenna, each antenna; Described the second thin code switch 10, RS485 communicating circuit 11 and high frequency the wireless module 3 separately other end are all connected to described governor circuit 7, described RS485 communicating circuit 11 is by coming the signal of automatic network to realize the configuration to governor circuit 7 mode of operations, and described high frequency wireless module 3 is by carrying out the configuration of wireless realization to governor circuit 7 mode of operations;
Above-mentioned antenna activation of source 1 also comprises that one is connected to the signal lamp 1 of described governor circuit 7, and it is for showing the duty of antenna activation of source 1.
Above-mentioned antenna activation of source also comprises a power-switching circuit 2, for electric energy being provided to antenna activation of source 1.
The frequency of above-mentioned low frequency signal is 125KHz, and the frequency of above-mentioned high frequency carrier is 2.45GHz.
Described high frequency antenna is to be placed on circuit board, and data during communication comprise the numbering, low frequency signal intensity, self No. ID, battery electric quantity information of low frequency signal source.Described low-frequency antenna can one dimension antenna, can be also 3D antenna, and one dimension antenna has directional effect, and 3D antenna is not limited by direction.Described signal lamp is light emitting diode.Described system power supply battery forms is soft package lithium battery.Described battery electricity detection method is that electric resistance partial pressure detects.
According to low frequency signal intensity value, just can judge accurately the distance between this dual-frequency label and low frequency signal source, thereby the communication distance that can control accurately low frequency part is between 0.5 ~ 7 meter, indirectly is also equivalent to control the communication distance of HFS.
Many antennas low frequency activation of source dispatches from the factory after tested, and after installing and setting mode of operation, the mode of operation that just starts to set is ceaselessly outwards launched low frequency activation signal, and this low frequency activation signal includes the ID coding of each antenna and the ID coding of equipment.When carrying that the carrier of double-frequency electronic label enters or during through signal coverage areas, will receiving this signal, then label sends to card reader by some information of adding label self after signal resolution with high frequency form.In this information, include following content: the electric weight of the ID of each antenna in the ID of many antennas activation of source, activation of source, the signal intensity while receiving signal, label, label No. ID, other information (temperature, humidity, pressure, gravity, speed etc.) etc.Card reader adds the ID of oneself again in these information, then final information is uploaded to upper level administration module.Administration module may have various ways, such as: 1, can be the rig-site utilization equipment such as a controller, this equipment will carry out at the scene information processing and make corresponding management action, carry out the service for people.2, can be the user application software in Remote management center operation, this software to these information processings after, or file or prompting or continue as other equipment data etc. are provided, instruct relevant work personnel to do further work.
Above-described embodiment is only explanation technical conceive of the present invention and feature, and its object is to allow person skilled in the art can understand content of the present invention and implement according to this, can not limit the scope of the invention with this.All equivalences that Spirit Essence is done according to the present invention change or modify, within all should being encompassed in protection scope of the present invention.
Claims (5)
1. for many antennas activation of source of radio-frequency (RF) identification, it is characterized in that: comprising: storer (4), for depositing each low-frequency antenna ID coding and antenna activation of source ID coding;
Low frequency radio frequency circuit (5) and several low-frequency antennas (6) being connected with low frequency radio frequency circuit (5), described low frequency radio frequency circuit (5) comprise series connection with door (51) and power MOS pipe driver module (52), described and door (51) forms low frequency activation signal for the data signal modulation from governor circuit is arrived to 125KHz carrier signal, and described power MOS pipe driver module (52) carries out power amplification by low frequency activation signal and generates low frequency radio frequency signal;
Be positioned at power control circuit (8) between low frequency radio frequency circuit (5) and governor circuit (7), this power control circuit (8) is for regulating low-frequency antenna (6) emissive power;
The first thin code switch (9), this the first thin code switch (9) one end is connected to described governor circuit (7), the other end is connected to for the second thin code switch (10), RS485 communicating circuit (11) and the high frequency wireless module (3) of mode of operation are set, and described mode of operation comprises the order of work of effective number of antennas, each antenna, the work duration of the emissive power of each antenna, each antenna; Described the second thin code switch (10), RS485 communicating circuit (11) and high frequency wireless module (3) the separately other end are all connected to described governor circuit (7), described RS485 communicating circuit (11) is by coming the signal of automatic network to realize the configuration to governor circuit (7) mode of operation, and described high frequency wireless module (3) is by carrying out the configuration of wireless realization to governor circuit (7) mode of operation;
Governor circuit (7), generates by the low-frequency antenna ID coding from storer (4), antenna activation of source ID coding the low frequency activation signal that contains low-frequency antenna ID coding, antenna activation of source ID coding and mode of operation information according to the mode of operation setting by low frequency radio frequency circuit (5).
2. many antennas activation of source according to claim 1, is characterized in that: described antenna activation of source (1) also comprises that one is connected to the signal lamp (1) of described governor circuit (7), and it is for showing the duty of antenna activation of source (1).
3. many antennas activation of source according to claim 1, is characterized in that: described antenna activation of source also comprises a power-switching circuit (2), for electric energy being provided to antenna activation of source (1).
4. many antennas activation of source according to claim 1, is characterized in that: the frequency of described low frequency signal is 125KHz.
5. many antennas activation of source according to claim 1, is characterized in that: the frequency of described high frequency carrier is 2.45GHz.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610641593.9A CN106446734B (en) | 2013-11-27 | 2013-11-27 | Radio-frequency antenna activate source for Internet of Things |
| CN201610642973.4A CN106295444B (en) | 2013-11-27 | 2013-11-27 | Low-power anti-interference antenna activation source |
| CN201610643217.3A CN106295446B (en) | 2013-11-27 | 2013-11-27 | Multiple antennas activate source with accurate positioning function |
| CN201310612973.6A CN103646228B (en) | 2013-11-27 | 2013-11-27 | Multi-antenna activation source used for radio frequency identification |
| CN201610642975.3A CN106295445B (en) | 2013-11-27 | 2013-11-27 | Radio frequency antenna activation source with dynamically adjustable identification distance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310612973.6A CN103646228B (en) | 2013-11-27 | 2013-11-27 | Multi-antenna activation source used for radio frequency identification |
Related Child Applications (4)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610643217.3A Division CN106295446B (en) | 2013-11-27 | 2013-11-27 | Multiple antennas activate source with accurate positioning function |
| CN201610642975.3A Division CN106295445B (en) | 2013-11-27 | 2013-11-27 | Radio frequency antenna activation source with dynamically adjustable identification distance |
| CN201610641593.9A Division CN106446734B (en) | 2013-11-27 | 2013-11-27 | Radio-frequency antenna activate source for Internet of Things |
| CN201610642973.4A Division CN106295444B (en) | 2013-11-27 | 2013-11-27 | Low-power anti-interference antenna activation source |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103646228A true CN103646228A (en) | 2014-03-19 |
| CN103646228B CN103646228B (en) | 2017-02-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610641593.9A Active CN106446734B (en) | 2013-11-27 | 2013-11-27 | Radio-frequency antenna activate source for Internet of Things |
| CN201610642975.3A Active CN106295445B (en) | 2013-11-27 | 2013-11-27 | Radio frequency antenna activation source with dynamically adjustable identification distance |
| CN201610643217.3A Active CN106295446B (en) | 2013-11-27 | 2013-11-27 | Multiple antennas activate source with accurate positioning function |
| CN201310612973.6A Active CN103646228B (en) | 2013-11-27 | 2013-11-27 | Multi-antenna activation source used for radio frequency identification |
| CN201610642973.4A Active CN106295444B (en) | 2013-11-27 | 2013-11-27 | Low-power anti-interference antenna activation source |
Family Applications Before (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610641593.9A Active CN106446734B (en) | 2013-11-27 | 2013-11-27 | Radio-frequency antenna activate source for Internet of Things |
| CN201610642975.3A Active CN106295445B (en) | 2013-11-27 | 2013-11-27 | Radio frequency antenna activation source with dynamically adjustable identification distance |
| CN201610643217.3A Active CN106295446B (en) | 2013-11-27 | 2013-11-27 | Multiple antennas activate source with accurate positioning function |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201610642973.4A Active CN106295444B (en) | 2013-11-27 | 2013-11-27 | Low-power anti-interference antenna activation source |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106682559B (en) * | 2017-03-02 | 2023-08-08 | 苏州摩比信通智能系统有限公司 | Radio frequency identification reading terminal and radio frequency identification reading success prompting method |
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| US20110039601A1 (en) * | 2008-04-18 | 2011-02-17 | Shanghai Quanray Electronics Co., Ltd | signal enhancer chip for radio frequency identification system and a signal enhancer |
| CN202887237U (en) * | 2012-08-27 | 2013-04-17 | 江苏优因特智能科技有限公司 | Radio-frequency-signal controllable activation indicating device |
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| US20090117938A1 (en) * | 2007-11-02 | 2009-05-07 | Broadcom Corporation | Ic for a high frequency communication device with minimal off chip components |
| JP5146664B2 (en) * | 2008-05-27 | 2013-02-20 | ブラザー工業株式会社 | Wireless tag communication device |
| CN102236805A (en) * | 2010-05-06 | 2011-11-09 | 周林生 | Safety identification system based on technology of Internet of things |
| CN202979050U (en) * | 2012-11-26 | 2013-06-05 | 广东步步高电子工业有限公司 | Radio frequency system for double antenna mobile terminal |
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2013
- 2013-11-27 CN CN201610641593.9A patent/CN106446734B/en active Active
- 2013-11-27 CN CN201610642975.3A patent/CN106295445B/en active Active
- 2013-11-27 CN CN201610643217.3A patent/CN106295446B/en active Active
- 2013-11-27 CN CN201310612973.6A patent/CN103646228B/en active Active
- 2013-11-27 CN CN201610642973.4A patent/CN106295444B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110039601A1 (en) * | 2008-04-18 | 2011-02-17 | Shanghai Quanray Electronics Co., Ltd | signal enhancer chip for radio frequency identification system and a signal enhancer |
| 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 |
| CN202887237U (en) * | 2012-08-27 | 2013-04-17 | 江苏优因特智能科技有限公司 | Radio-frequency-signal controllable activation indicating device |
| CN103218594A (en) * | 2012-11-07 | 2013-07-24 | 无锡成电科大科技发展有限公司 | Radio frequency identification terminal |
| CN203689531U (en) * | 2013-11-27 | 2014-07-02 | 苏州木兰电子科技有限公司 | Multi-antenna activation source used for radio frequency identification |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106446734A (en) | 2017-02-22 |
| CN106295445B (en) | 2020-05-22 |
| CN106295446A (en) | 2017-01-04 |
| CN106295445A (en) | 2017-01-04 |
| CN106295446B (en) | 2019-06-18 |
| CN103646228B (en) | 2017-02-08 |
| CN106295444B (en) | 2020-05-22 |
| CN106446734B (en) | 2019-04-23 |
| CN106295444A (en) | 2017-01-04 |
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