CN202339570U - Dual-band radio frequency electronic tag - Google Patents
Dual-band radio frequency electronic tag Download PDFInfo
- Publication number
- CN202339570U CN202339570U CN2011205114301U CN201120511430U CN202339570U CN 202339570 U CN202339570 U CN 202339570U CN 2011205114301 U CN2011205114301 U CN 2011205114301U CN 201120511430 U CN201120511430 U CN 201120511430U CN 202339570 U CN202339570 U CN 202339570U
- Authority
- CN
- China
- Prior art keywords
- frequency
- signal
- low
- electronic tag
- microcontroller
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Radar Systems Or Details Thereof (AREA)
Abstract
The utility model discloses a dual-band radio frequency electronic tag, which comprises a low-frequency antenna, a low-frequency circuit, a microcontroller, a high-frequency circuit, a high-frequency antenna and a voltage detection unit, wherein the low-frequency antenna is used for receiving a low-frequency signal from an activation source, and generating a sensing signal; the low-frequency circuit extracts the intensity of the low-frequency signal according to the sensing signal from the low-frequency antenna, and generates a triggering signal; the microcontroller stores an electronic tag identification (ID) number, switches a dormant state and an on-state according to the triggering signal, processes the intensity of the low-frequency signal, and generates an intensity identification signal; the high-frequency circuit is used for modulating the intensity identification signal and the ID number from the microcontroller into a coded signal; the high-frequency antenna is used for transmitting the coded signal into a space through a high-frequency carrier; and the voltage detection unit is positioned between a lithium battery and the microcontroller. A distance between the dual-band radio frequency electronic tag and a card reader can be measured, so that accurate positioning is realized, an identification distance is adjustable, and the problem about the simultaneous reading of a plurality of card readers for the same electronic tag is solved; and power consumption is strictly controlled, so that the electronic tag is extremely low in power consumption, and can run for a long time without any failure.
Description
Technical field
The utility model relates to a kind of electronic tag, relates in particular to a kind of dual band radio frequency electronic tag.
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 complex environments such as sub-district, mining area, highway receives the great attention of national departments concerned always, but the dispute even the accident that cause owing to negligent supervision still occur repeatedly, and causes the unnecessary loss of a lot of individuals and the interests of country.The measure of how strengthening management, how the effective operation of Nei Feiben sub-district, accurate, real-time, fast grasp residential quarter personnel state, mining area personnel's distribution and mobility status, highway toll efficient and burst accident rescue is the problem that national departments concerned presses for solution.Change the management mode that falls behind, realize that modernization, the informationization of management is the important channel that fundamentally addresses these problems.
At present; The electronic tag that in reality, uses all is an one-segment, and about 50 meters, range of signal is bigger usually for the electronic tag transmitting range; Read simultaneously by a plurality of card reader easily; And can not accurately distinguish when a plurality of card reader are read specifically is the position in which card reader, therefore also just can not accurately locate, and brings a lot of inconvenience to management.Simultaneously; Also just because existing electronic tag is being the one-segment pattern, they must ceaselessly outwards send oneself ID number, or ceaselessly switching working mode (sending mode and receiving mode) receives the information that card reader is sent; So; The power consumption of electronic tag will be very high, and battery serviceable life will be very short, causes the life-span of label also very limited.
Summary of the invention
The utility model provides a kind of dual band radio frequency electronic tag; This dual band radio frequency electronic tag can be measured distance between dual band radio frequency electronic tag and the card reader, and realization is accurately located, decipherment distance is adjustable, solve a plurality of card reader reads the puzzlement of same electronic tag simultaneously, can long-term non-fault operate.
For achieving the above object, the technical scheme that the utility model adopts is: a kind of dual band radio frequency electronic tag comprises:
Low-frequency antenna is used to receive the low frequency signal from activation of source, and generates induced signal;
Low-frequency channel extracts the intensity of said low frequency signal and produces trigger pip according to the induced signal from low-frequency antenna;
Store electronic tag ID number microcontroller, the intensity that realizes the switching of dormancy and starting state and handle said low frequency signal according to said trigger pip generates the intensity id signal;
High-frequency circuit is used for from the intensity id signal of microcontroller be modulated into coded signal ID number;
High frequency antenna is used for coded signal is transmitted into the space through high frequency carrier.
Related content in the technique scheme is explained as follows:
1, in the such scheme, lithium battery is used to provide power supply;
Voltage detection unit between said lithium battery and microcontroller will compare from power source voltage and threshold voltage, the electric weight size of the said lithium battery of interpretation.
2, in the such scheme, pilot lamp is connected to said microcontroller, is used to indicate the duty of electronic tag.
3, in the such scheme, the frequency of said low frequency signal is 125KHz.
4, in the such scheme, the frequency of said high frequency carrier is 2.45GHz.
The utility model principle of work is: the dual-frequency label circuit board under normal circumstances is in deep sleep after installation battery, encapsulation, test are dispatched from the factory, power consumption is extremely low, and overall power is about 3uA.Only when the coverage (0.5-7m) of personnel that carry double-frequency electronic label (abbreviation dual-frequency label) or object entering low frequency signal source; The low frequency signal detecting chip of dual-frequency label just can detect this signal; The MCU that is about to dormant state of existing side by side wakes up, makes it get into duty.And then send to distance card reader or double frequency card reader far away to ID number (with other information) form according to the rules of the battery electric quantity information of the numbering of low frequency signal source, low frequency signal intensity, dual-frequency label, dual-frequency label with the form of high frequency.Can find out that according to this this dual-frequency label has following characteristics: closely wake up, telecommunication, and wake source can know, wakes distance up and can know.Avoided because the Card Reader distance problem far away and interactional of card reader.After card reader receives high-frequency wireless signals; Can according to the data obtained of fixed format analysis, and with these data be temporarily stored in respectively in the read write line or according to fixing agreement with the mode of wired (RS485/RS232/ Ethernet/light etc.) or wireless (GPRS/CDMA/WIFI/3G etc.) with these information uploadings to the management and dispatching center.After the telemanagement dispatching center receives data, just can make corresponding judgment in view of the above, and do work such as further management and dispatching.
Because the technique scheme utilization, the utility model compared with prior art has advantage:
1, because the utility model has adopted the low-frequency range radio circuit in governor circuit, frequency of operation is 125KHz, and the realization ratio of low frequency wake-up signal source is easier to, circuit is simple, and is with low cost, easy to utilize.
2, because the utility model has adopted the radio circuit of high band in governor circuit, frequency of operation is 2.45GHz, communication distance is far away, is 0-50 rice under the normal condition, has expanded its application.
3, because the controller of the utility model adopts 16 super low power consuming single chip processor MSP430F2132, and it is low in energy consumption, and function is strong, and processing speed is fast, aboundresources can be simplified the hardware designs of tag system, thereby reduces design cost.
4, because the utility model fusion that low frequency and high-frequency circuit is just right in a tag system, makes power consumption lower, wake distance up and can accurately be controlled in the 0.5-7 rice scope, and data communication is apart from unaffected.
5, because the utility model adopts the Soft Roll lithium battery, and electric weight is more, and volume is littler, longer service life is carried more conveniently, and user Geng Yi accepts use.
6, because the utility model applicating software programming adopts unique mode, make that use is very simple, the user only gets final product with carrying, and gets into when waking the zone up, and system is processing relevant information automatically.
Description of drawings
Accompanying drawing 1 is the utility model dual band radio frequency Electronic Tag Structure synoptic diagram.
In the above accompanying drawing: 1, low-frequency antenna; 2, low-frequency channel; 3, microcontroller; 4, high-frequency circuit; 5, high frequency antenna; 6, lithium battery; 7, voltage detection unit; 8, pilot lamp.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is further described:
Embodiment: a kind of dual band radio frequency electronic tag comprises:
Low-frequency antenna 1 is used to receive the low frequency signal from activation of source, and generates induced signal; Said low-frequency antenna can be the one dimension antenna, also can be the 3D antenna, and the one dimension antenna can be realized directional effect; The signal that reduces other directions disturbs, and 3D antenna not recipient uses more convenient to restriction;
Low-frequency channel 2 extracts the intensity of said low frequency signal and produces trigger pip according to the induced signal from low-frequency antenna 1;
Store electronic tag ID number microcontroller 3, realize the switching of dormancy and starting state and handle the intensity of said low frequency signal, generate the intensity id signal according to said trigger pip;
High-frequency circuit 4 is used for from the intensity id signal of microcontroller 3 be modulated into coded signal ID number;
High frequency antenna 5 is used for coded signal is transmitted into the space through high frequency carrier, and this high frequency antenna can be made on the circuit board, compares with external antenna, has dwindled the volume of this label, makes label smaller and more exquisite, carries more easily;
Lithium battery 6 is used to provide power supply;
Voltage detection unit 7 between said lithium battery 6 and microcontroller 3 will compare from power source voltage and threshold voltage, the electric weight size of the said lithium battery 6 of interpretation; This battery electricity detection method is that electric resistance partial pressure detects, and the AD converter that utilizes single-chip microcomputer inside to carry can be confirmed the voltage of battery accurately; Compare with external A/D converter; Reduced the power consumption of label, reduced the cost of label simultaneously again, helped promoting the use of.
Pilot lamp 8 is connected to said microcontroller 3, is used to indicate the duty of electronic tag, and pilot lamp 8 is a light emitting diode, indication dual-frequency label dormancy (pilot lamp goes out) and work (pilot lamp flicker) two states.
The frequency of above-mentioned low frequency signal is 125KHz.
The frequency of above-mentioned high frequency carrier is 2.45GHz.
Said high frequency antenna is placed on the circuit board, and the data during communication comprise the numbering, low frequency signal intensity, self ID number, battery electric quantity information of low frequency signal source.Said low-frequency antenna can the one dimension antenna, also can be the 3D antenna, and the one dimension antenna has directional effect, the 3D antenna not the recipient to restriction.Said signal lamp is a light emitting diode.Said system supplying cell form is the Soft Roll lithium battery.Said battery electricity detection method is that electric resistance partial pressure detects.
When adopting above-mentioned dual band radio frequency electronic tag, utilize the characteristic of radio-frequency signal, the aerial propagation rate of 125KHz low frequency signal can reach 4Kbps, and the aerial velocity of propagation of 2.45GHz high-frequency signal can reach 2Mbps.Electric current required during system works is about 13mA, and needed electric current is merely 3uA during standby, so we all are set to the highest 4Kbps and 2Mbps with the wireless communication speed of two frequency ranges.The so identical employed time of communication data amount is just the shortest, and the time of system standby is just the longest, and the energy that is consumed is just minimum, and the serviceable life of battery is just longer, and the serviceable life of dual-frequency label is also just longer.
The foregoing description only is the technical conceive and the characteristics of explanation the utility model, and its purpose is to let the personage who is familiar with this technology can understand content of the utility model and enforcement according to this, can not limit the protection domain of the utility model with this.All equivalences of being done according to the utility model spirit change or modify, and all should be encompassed within the protection domain of the utility model.
Claims (5)
1. dual band radio frequency electronic tag is characterized in that: comprising:
Low-frequency antenna (1) is used to receive the low frequency signal from activation of source, and generates induced signal;
Low-frequency channel (2) extracts the intensity of said low frequency signal and produces trigger pip according to the induced signal from low-frequency antenna (1);
Store electronic tag ID number microcontroller (3), the intensity that realizes the switching of dormancy and starting state and handle said low frequency signal according to said trigger pip generates the intensity id signal;
High-frequency circuit (4) is used for from the intensity id signal of microcontroller (3) be modulated into coded signal ID number;
High frequency antenna (5) is used for coded signal is transmitted into the space through high frequency carrier.
2. electronic tag according to claim 1 is characterized in that:
Lithium battery (6) is used to provide power supply;
Be positioned at the voltage detection unit (7) between said lithium battery (6) and the microcontroller (3), will be from the electric weight size of power source voltage and the threshold voltage comparison said lithium battery of interpretation (6).
3. electronic tag according to claim 1 is characterized in that:
Pilot lamp (8) is connected to said microcontroller (3), is used to indicate the duty of electronic tag.
4. electronic tag according to claim 1 is characterized in that: the frequency of said low frequency signal is 125KHz.
5. electronic tag according to claim 1 is characterized in that: the frequency of said high frequency carrier is 2.45GHz.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205114301U CN202339570U (en) | 2011-12-09 | 2011-12-09 | Dual-band radio frequency electronic tag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205114301U CN202339570U (en) | 2011-12-09 | 2011-12-09 | Dual-band radio frequency electronic tag |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202339570U true CN202339570U (en) | 2012-07-18 |
Family
ID=46488260
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205114301U Expired - Fee Related CN202339570U (en) | 2011-12-09 | 2011-12-09 | Dual-band radio frequency electronic tag |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202339570U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104253634A (en) * | 2014-07-24 | 2014-12-31 | 上海励识电子科技有限公司 | Double-frequency multi-protocol multifunctional NFC (near field communication) integrating system and application method |
| CN105578592A (en) * | 2015-12-11 | 2016-05-11 | 北京天地玛珂电液控制***有限公司 | Device and system for positioning workers of fully mechanized face |
| CN106355218A (en) * | 2016-08-19 | 2017-01-25 | 成都九洲电子信息***股份有限公司 | Active electronic tag system for positioning accurately |
| CN105701432B (en) * | 2013-11-27 | 2018-06-29 | 苏州木兰电子科技有限公司 | RF tag identifying system based on multiple antennas |
-
2011
- 2011-12-09 CN CN2011205114301U patent/CN202339570U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105701432B (en) * | 2013-11-27 | 2018-06-29 | 苏州木兰电子科技有限公司 | RF tag identifying system based on multiple antennas |
| CN104253634A (en) * | 2014-07-24 | 2014-12-31 | 上海励识电子科技有限公司 | Double-frequency multi-protocol multifunctional NFC (near field communication) integrating system and application method |
| CN104253634B (en) * | 2014-07-24 | 2016-05-11 | 上海励识电子科技有限公司 | Double frequency multi-protocols multifunctional near-field communication integrate system and methods for using them |
| CN105578592A (en) * | 2015-12-11 | 2016-05-11 | 北京天地玛珂电液控制***有限公司 | Device and system for positioning workers of fully mechanized face |
| CN105578592B (en) * | 2015-12-11 | 2019-09-03 | 北京天地玛珂电液控制***有限公司 | A kind of device and system of fully-mechanized mining working personnel positioning |
| CN106355218A (en) * | 2016-08-19 | 2017-01-25 | 成都九洲电子信息***股份有限公司 | Active electronic tag system for positioning accurately |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103646230B (en) | Radio-frequency recognition system based on double-frequency electronic label | |
| CN103164730A (en) | Dual-frequency radio frequency electronic tag | |
| CN201570054U (en) | Low-power-consumption RFID temperature sensing tag | |
| CN201402531Y (en) | WSN-based geomagnetic parking stall detector and geomagnetic parking stall detection system | |
| CN202339570U (en) | Dual-band radio frequency electronic tag | |
| CN105546331B (en) | Gas cylinder detects inflation system and inflation method automatically | |
| CN105787545B (en) | Anti-interference dual band radio frequency identification device | |
| CN202551346U (en) | System for positioning underground locomotive of coal mine based on ZigBee and geographic information system (GIS) | |
| CN102595318A (en) | Coal mine underground locomotive positioning system based on ZigBee and geographic information system (GIS) | |
| CN107607909A (en) | A kind of indoor orientation method and label node based on LF and UWB | |
| CN202615575U (en) | Novel diaper alarm system | |
| CN203930845U (en) | Many antennas radio-frequency recognition system for double-frequency electronic label | |
| CN201725376U (en) | Wireless wake-up type active student label recognition system | |
| CN104331725A (en) | Wireless positioning system based on radio frequency identification technology for prison | |
| TWI533731B (en) | Beacon device and control method thereof | |
| CN105787410B (en) | Multiple antennas rfid device for electronic tag | |
| CN105787544B (en) | Double-frequency electronic label system | |
| Gamm et al. | Smart metering using distributed wake-up receivers | |
| CN201474724U (en) | Mine wireless mp3 alarm information screen | |
| CN205428046U (en) | Smart meter meter | |
| CN204242205U (en) | A kind of prison wireless location system based on REID | |
| CN204559893U (en) | Wireless communication device, table meter inquiry unit and table meter inquiry system | |
| CN103413162A (en) | Ultra-thin smart energy-saving e-card based on satellite positioning | |
| CN203733217U (en) | IC card intelligent gas meter | |
| CN205068466U (en) | Mining personnel's locator card based on 433MHZ radio frequency technology |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120718 Termination date: 20151209 |
|
| EXPY | Termination of patent right or utility model |