CN203966171U - RFID label for intelligent electric meter - Google Patents
RFID label for intelligent electric meter Download PDFInfo
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- CN203966171U CN203966171U CN201420374236.7U CN201420374236U CN203966171U CN 203966171 U CN203966171 U CN 203966171U CN 201420374236 U CN201420374236 U CN 201420374236U CN 203966171 U CN203966171 U CN 203966171U
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- electric meter
- rfid label
- intelligent electric
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Abstract
The utility model discloses a kind of RFID label for intelligent electric meter, comprise chip unit and antenna element, described chip unit is RFID chip, described antenna element comprises the first antenna and the second antenna, described the first antenna is all connected with chip unit with the second antenna, and the first antenna and the second antenna utilize two completely independently double antenna difference ports of difference input formation Omni-directional antenna.The utlity model has the advantages such as simple and compact for structure, easy and simple to handle, good reliability.
Description
Technical field
The utility model is mainly concerned with metering outfit field, refers in particular to a kind of RFID label that is applicable to intelligent electric meter.
Background technology
Intelligent electric meter is the intelligent terminal of intelligent grid, except possessing the function of measuring of traditional electric energy meter basic electricity amount, in order to adapt to the use of intelligent grid and new forms of energy, it also has two-way multiple rate function of measuring, user side and controls the intelligentized functions such as the bidirectional data communication function of function, plurality of data transmission modes, anti-stealing electricity function, and intelligent electric meter is representing the developing direction of following energy-conserving intelligent electrical network final user intelligent terminal.
At present, intelligent electric meter be take IC-card ammeter as main, and user holds IC-card and hands over money power purchase to power supply department, power supply department writes purchase of electricity in IC-card with sale of electricity supervisor, and user holds IC-card and in induction zone, brushes non-contact IC card (abbreviation is swiped the card, lower same), the power supply of can closing a floodgate, after power supply walks Qana.When in table, dump energy equals to report to the police electric weight, the power alarm of operating a switch (or buzzer warning), now user swipes the card and can restore electricity in induction zone; When dump energy is zero, automatically switch off, user's power purchase of paying dues that must again hold, just can recover electricity consumption.But, for administration of power networks department and power grid operation mechanism, still there are some inconvenience in this IC-card ammeter, when especially the user of large quantity is effectively managed, by manually connecting, the operation such as read-write and control all exists the problem that efficiency is not high in management.
Utility model content
The technical problems to be solved in the utility model is just: the technical matters existing for prior art, the utility model provides a kind of RFID label for intelligent electric meter of simple and compact for structure, easy and simple to handle, good reliability.
For solving the problems of the technologies described above, the utility model by the following technical solutions:
A kind of RFID label for intelligent electric meter, comprise chip unit and antenna element, described chip unit is RFID chip, described antenna element comprises the first antenna and the second antenna, described the first antenna is all connected with chip unit with the second antenna, and the first antenna and the second antenna utilize two completely independently double antenna difference ports of difference input formation Omni-directional antenna.
As further improvement of the utility model: described the first antenna all has the impedance parameter identical with single port label with any one port in the second antenna, and conjugate impedance match impedance is 11+j143 Ω.
As further improvement of the utility model: described RFID label is affixed on intelligent electric meter nameplate vinyl cover inner side.
As further improvement of the utility model: described chip unit comprises analog front-end assembly and digital control part, analog front-end assembly comprises power management module, modulation /demodulation and oscillator, and digital control part comprises label controller and nonvolatile memory.
Compared with prior art, the utility model has the advantage of:
1, adopt after electronic tag of the present utility model, reliability is higher.Between card and read write line, machinery-free contact, has avoided because the various faults produce are read and write in contact.
2, adopt after electronic tag of the present utility model, without exposed chip, need not worry that chip comes off, electrostatic breakdown, the problems such as crooked damage.
3, adopt after electronic tag of the present utility model, easy to operate, quick.Due to contactless communication, read write line just can operate card in less scope, so needn't plug as IC-card when work non-contact card is used, there is no directivity, card can skim over read write line surface by any direction, can greatly improve the speed of each use.
4, adopt after electronic tag of the present utility model, can effectively avoid a conflict, can prevent from occurring between card that data disturb.
Accompanying drawing explanation
Fig. 1 is structural framing principle schematic of the present utility model.
Fig. 2 is structural representation of the present utility model.
Marginal data:
1, chip unit; 2, antenna element; 201, the first antenna; 202, the second antenna.
Embodiment
Below with reference to Figure of description and specific embodiment, the utility model is described in further details.
Because conventional RFID label is all applied in external environment, as all can obtained good readwrite performance in air and papery circle matter, if but be installed on the inside of intelligent electric meter, will there is larger skew in the resonant frequency of RFID label, thereby improved the backward scattering power of RFID label, thereby greatly reduced the readwrite performance of RFID label.This is because the considerable influence that the plastic cement below the plastic cement famous brand of intelligent electric meter and famous brand and metal parts produce.And the conjugate impedance of the chip of RFID label under special frequency channel fixed, impact due to plastic cement on intelligent electric meter and metal material, the antenna of ammeter label is in the impedance of special frequency channel and the impedance meeting generation off resonance of chip, thereby greatly affect the readwrite performance of label, finally cause the in use occurrence frequency drift of RFID label, cause the problems such as to read distance short, and group's reading amount is few.
As depicted in figs. 1 and 2, RFID label for intelligent electric meter of the present utility model, comprise chip unit 1 and antenna element 2, this antenna element 2 adopts the design of double antenna differential ends interruption-forming Omni-directional antenna, and each antenna port includes the impedance parameter identical with single port label; Be that antenna element 2 comprises that the first antenna 201 and the second antenna 202, the first antennas 201 are all connected with chip unit 1 with the second antenna 202.
Omni-directional antenna design is very important for the request for utilization of intelligent electric meter metering, can greatly improve the quantity that single label reads.And be all to complete by its two differential antennae ports all mutual (comprise and generate internal power, air interface, negotiation sequence and command execution) between chip unit 1.This double antenna port has been realized the diversity of Antenna Design, therefore contributes to reduce to greatest extent the susceptibility of label to orientation.
In the present embodiment, chip unit 1 can adopt the Monza4 chip of Impinj company according to actual needs, and Monza 4 label chips have adopted unique architecture.
In the present embodiment, antenna element 2 can adopt True3D antenna technology according to actual needs, utilize two completely independently difference input can realize Omni-directional antenna design, thereby prevent from losing efficacy or blind spot because of reading of producing of direction.
In the present embodiment, chip unit 1 works in dual-port pattern, can independently operate in this pattern lower port, therefore each port of dual-port label has the impedance parameter identical with single port label, conjugate impedance match impedance is 11+j143 Ω, the impedance of the design of antenna is in the plastic cement circle matter of the lower cooperation ammeter of special frequency channel (as Chinese Industrial Standards (CIS)), reaches or approaches conjugate impedance match impedance.
In the present embodiment, RFID label of the present utility model is affixed on ammeter nameplate vinyl cover inner side.
In the present embodiment, chip unit 1 comprises analog front-end assembly and digital control part, and analog front-end assembly comprises power management module, modulation /demodulation and oscillator, and digital control part comprises label controller and nonvolatile memory.
During work, RFID label of the present utility model is put into RFID printer and print and precoding, after printing coding, RFID label is affixed on to ammeter nameplate vinyl cover inner side, just can to a plurality of mutual inductors, identify simultaneously.When identifying, reader sends the radiofrequency signal of characteristic frequency by emitting antenna, produce induction current when RFID label enters effective perform region, thereby obtains energy, RFID label is activated, and RFID label is launched self coded message by built-in radio-frequency antenna; The receiving antenna of reader receives the modulation signal sending from RFID label, through antenna adjustments device, be sent to reader signal processing module, after demodulation code, effective information is delivered to background system, system produces corresponding operation according to the flow process of system works.
Below be only preferred implementation of the present utility model, protection domain of the present utility model is also not only confined to above-described embodiment, and all technical schemes belonging under the utility model thinking all belong to protection domain of the present utility model.It should be pointed out that for those skilled in the art, the some improvements and modifications not departing under the utility model principle prerequisite, should be considered as protection domain of the present utility model.
Claims (4)
1. the RFID label for intelligent electric meter, it is characterized in that, comprise chip unit (1) and antenna element (2), described chip unit (1) is RFID chip, described antenna element (2) comprises the first antenna (201) and the second antenna (202), described the first antenna (201) is all connected with chip unit (1) with the second antenna (202), and the first antenna (201) and the second antenna (202) utilize two completely independently double antenna difference ports of difference input formation Omni-directional antenna.
2. the RFID label for intelligent electric meter according to claim 1, it is characterized in that, described the first antenna (201) all has the impedance parameter identical with single port label with any one port in the second antenna (202), and conjugate impedance match impedance is 11+j143 Ω.
3. the RFID label for intelligent electric meter according to claim 1 and 2, is characterized in that, described RFID label is affixed on intelligent electric meter nameplate vinyl cover inner side.
4. the RFID label for intelligent electric meter according to claim 1 and 2, it is characterized in that, described chip unit (1) comprises analog front-end assembly and digital control part, analog front-end assembly comprises power management module, modulation /demodulation and oscillator, and digital control part comprises label controller and nonvolatile memory.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420374236.7U CN203966171U (en) | 2014-07-08 | 2014-07-08 | RFID label for intelligent electric meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420374236.7U CN203966171U (en) | 2014-07-08 | 2014-07-08 | RFID label for intelligent electric meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203966171U true CN203966171U (en) | 2014-11-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420374236.7U Active CN203966171U (en) | 2014-07-08 | 2014-07-08 | RFID label for intelligent electric meter |
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| CN (1) | CN203966171U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107534205A (en) * | 2015-06-11 | 2018-01-02 | 张凯 | Provided with the RFID label tag for increasing frequency breach |
-
2014
- 2014-07-08 CN CN201420374236.7U patent/CN203966171U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107534205A (en) * | 2015-06-11 | 2018-01-02 | 张凯 | Provided with the RFID label tag for increasing frequency breach |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170509 Address after: The new Shao road 410004 Hunan province Changsha No. 398 Co-patentee after: METROLOGY CENTER, STATE GRID HUNAN ELECTRIC POWER COMPANY Patentee after: State Grid Hunan Electric Power Company Co-patentee after: State Grid Corporation of China Address before: 410007 Hunan Province, Hunan Province, Yuhua District, Changsha Avenue, No. 778 Changsha electric power metering center Patentee before: Liu Qing |