CN110311207A - A kind of near field adapted local cosine transform antenna applied to RFID - Google Patents
A kind of near field adapted local cosine transform antenna applied to RFID Download PDFInfo
- Publication number
- CN110311207A CN110311207A CN201910571904.2A CN201910571904A CN110311207A CN 110311207 A CN110311207 A CN 110311207A CN 201910571904 A CN201910571904 A CN 201910571904A CN 110311207 A CN110311207 A CN 110311207A
- Authority
- CN
- China
- Prior art keywords
- antenna
- pedestal
- near field
- cosine transform
- antenna housing
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- 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.)
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/005—Damping of vibrations; Means for reducing wind-induced forces
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
- H01Q1/2208—Supports; Mounting means by structural association with other equipment or articles associated with components used in interrogation type services, i.e. in systems for information exchange between an interrogator/reader and a tag/transponder, e.g. in Radio Frequency Identification [RFID] systems
- H01Q1/2225—Supports; Mounting means by structural association with other equipment or articles associated with components used in interrogation type services, i.e. in systems for information exchange between an interrogator/reader and a tag/transponder, e.g. in Radio Frequency Identification [RFID] systems used in active tags, i.e. provided with its own power source or in passive tags, i.e. deriving power from RF signal
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/42—Housings not intimately mechanically associated with radiating elements, e.g. radome
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
Landscapes
- Support Of Aerials (AREA)
Abstract
The invention discloses a kind of near field adapted local cosine transform antennas applied to RFID, including antenna housing, antenna circuit module and pedestal, the pedestal is equipped with mounting plate, the antenna circuit module is connected by buffer gear with mounting plate, the pedestal offsets with the port of antenna housing and is connected by four bindiny mechanisms, mounting blocks there are four being set on the pedestal, the upper surface of the antenna housing is equipped with prompt patch, the antenna circuit module is equipped with and the peripheral hardware connector that is electrically connected, the peripheral hardware connector through antenna housing and with its movable connection, the buffer gear includes fixed four T-bars on a mounting board, the top of the mounting plate is equipped with connecting plate, four T-bars run through connecting plate and are slidably connected with it.Structure of the invention is reasonable, is not only convenient for repairing it to shell installing and dismounting for master worker and providing convenience, can also carry out buffer protection to antenna circuit module, increase its service life.
Description
Technical field
The present invention relates to RFID adapted local cosine transform antenna technical field more particularly to a kind of near field applied to RFID are adaptive
Answer focusing anteena.
Background technique
Radio frequency identification (RFID) is a kind of wireless communication technique, and specific objective can be identified by radio signals and is read and write
Related data, without establishing mechanical or optical contact between identifying system and specific objective.
The signal of radio is the electromagnetic field by being tuned into radio frequency, data from the label being attached on article
It sends out, to recognize automatically and track the article.Certain labels are in identification from the electromagnetic field that identifier issues
Energy is obtained, battery is not needed；Also there is label itself to possess power supply, and can actively issue radio wave and (be tuned into radio
The electromagnetic field of frequency).Label contains the information of Electronic saving, can identify within several meters.Unlike bar code, penetrate
Frequency marking label do not need to be within identifier sight, can also be embedded in and be tracked within object.
Many industries have all used Radio Frequency Identification Technology.Label is attached to an automobile just in production, manufacturer is just
The progress of this vehicle in the production line can be tracked.Warehouse can track the place of drug.RF tag can also invest livestock with
On pet, the convenient positive identification to livestock and pet (actively identification, which is meant, prevents several livestocks from using the same identity).
The identification card of radio frequency identification can make employee get enter into the building part of latching, and the radio frequency transponder on automobile can also be with
For imposing the expense of charging section and parking lot；Certain RF tags are attached to clothing, on personal effects, even implantation human body
Within.Since this technology may read personal information in the case where permitting without me, this technology also has infringement
Individual privacy suffering.
Existing RFID system is made of computer, recognizer and antenna, and antenna has adaptive poly- with the development of science and technology
Burnt function, its working principle is that Reader emits the radio wave energy of a specific frequency, to driving circuit by internal number
According to submitting, Reader just received in sequence unscrambling data, gives application program and does corresponding processing at this time；RFID technique application at present
Very wide, such as: library, access control system, food safety are traced to the source；It is made of antenna shell, pedestal and Anneta module, current
Shell with pedestal is connected by screw, and installation and removal are more troublesome, and the access control system for students' dormitory compares appearance
It is easy to damage, student's collision beat it is equal caused by, be more troublesome when positioned at detachable maintaining, be that master worker brings not
Just；Secondly, existing Anneta module is mostly to be immobilized in the shell, when antenna shell vibrating, the vibration of Anneta module can be caused,
Cause the electronic component on Anneta module to shake, poor contact easily occur, reduces the service life of antenna.
How shell easy to disassemble, realize maintenance to Anneta module, provide convenience for master worker, how to realize to day
The bumper and absorbing shock of wire module is protected, and the service life for increasing antenna is present urgent need to resolve, therefore we devise one kind and answer
Problem above is solved for the near field adapted local cosine transform antenna of RFID.
Summary of the invention
A kind of near field adapted local cosine transform antenna applied to RFID proposed by the present invention, solves and is not easy to antenna housing
Carry out disassembly and can not be to antenna circuit module buffer protection, the problem of increasing its service life.
To achieve the goals above, present invention employs following technical solutions:
A kind of near field adapted local cosine transform antenna applied to RFID, including antenna housing, antenna circuit module and pedestal, institute
Pedestal is stated equipped with mounting plate, the antenna circuit module is connected by buffer gear with mounting plate, the pedestal and antenna
The port of shell offsets and is connected by four bindiny mechanisms, is set on the pedestal there are four mounting blocks, the antenna housing
Upper surface be equipped with prompt patch, the antenna circuit module is equipped with and the peripheral hardware connector that is electrically connected, the peripheral hardware connection
Head through antenna housing and with its movable connection.
Preferably, the buffer gear includes fixed four T-bars on a mounting board, and the top of the mounting plate is equipped with
Connecting plate, four T-bars run through connecting plate and are slidably connected with it, are equipped between the connecting plate and mounting plate multiple
First spring, the antenna circuit module are fixed by screws on connecting plate.
Preferably, the inside of the antenna housing is equipped with damp-proof layer.
Preferably, the bindiny mechanism includes the link block being fixedly connected with pedestal upper end, the antenna housing and pedestal
Opposite one side is equipped with mounting groove, and the mounting groove matches with link block, and the link block is equipped with sliding groove, the sliding
Sliding panel is slidably connected in slot, and multiple second springs, the sliding panel and second are equipped between the sliding panel and sliding groove
Spring it is opposite be fixedly connected with fixture block on one side, the mounting groove one side opposite with sliding groove is prolonged equipped with card slot, the fixture block
Extend in card slot, follow block slidably connected in the card slot, the follow block offsets with fixture block, the follow block it is opposite with fixture block one
Face is equipped with push rod, and the push rod is slidably connected through antenna housing and with it.
Preferably, the fixture block is set as arcwall face close to mounting groove inner top on one side.
Preferably, the push rod top is arranged with screw thread, and the outer sheath of the push rod is equipped with the nut being threadedly coupled with it,
The nut offsets with antenna housing.
Preferably, through equipped with mounting hole on four mounting blocks.
Compared with prior art, the present invention has the advantages that:
1, of the invention, when the trough rim of the arcwall face of fixture block and mounting groove offsets, since it is arcwall face, it is under pressure
When, fixture block is slided into sliding groove drives sliding panel sliding, and second spring is compressed；The inner wall of fixture block and mounting groove offset and to
Sliding in mounting groove under the action of second spring, can push sliding panel and fixture block sliding when fixture block slides at card slot
It is dynamic, and extend to fixture block in card slot, so realize the installation to antenna housing；When removing antenna housing, master worker can
Threaded portion is disengaged it from rotating screw cap and separate antenna housing direction is mobile, and then master worker pushes push rod to antenna case
The direction of body is mobile, and follow block and fixture block offset and disengage it from the movement of card slot direction at this time, when that can not push push rod, blocks at this time
Block completely disengages card slot, in this way, antenna housing can be disassembled；It is so relatively simple to the installing and dismounting of antenna housing fast
Victory repairs antenna circuit module convenient for master worker, provides convenience for staff.
2, of the invention, when antenna housing is beaten or is collided, connecting plate is slided up and down in multiple T-bars, more
Under the action of a first spring, bumper and absorbing shock can be carried out to connecting plate, subtracted in this way, realizing and carrying out buffering to antenna circuit module
Shake realizes the protection to antenna circuit module, increases its service life.
In conclusion structure of the invention is reasonable, it is not only convenient for that shell installing and dismounting repairs it for master worker and provides
It is convenient, buffer protection can also be carried out to antenna circuit module, increase its service life.
Detailed description of the invention
Fig. 1 is a kind of sectional view of the near field adapted local cosine transform antenna applied to RFID proposed by the present invention；
Fig. 2 is a kind of perspective view of the near field adapted local cosine transform antenna applied to RFID proposed by the present invention；
Fig. 3 is that the connection of buffer gear in a kind of near field adapted local cosine transform antenna applied to RFID proposed by the present invention is shown
It is intended to；
Fig. 4 is schematic enlarged-scale view at A in a kind of near field adapted local cosine transform antenna applied to RFID proposed by the present invention.
In figure: 1 antenna housing, 2 antenna circuit modules, 3 pedestals, 4 mounting plates, 5 connecting plates, 6 T-bars, 7 first springs,
8 damp-proof layers, 9 mounting blocks, 10 mounting holes, 11 mounting grooves, 12 link blocks, 13 sliding grooves, 14 sliding panels, 15 second springs, 16 cards
Block, 17 card slots, 18 follow blocks, 19 push rods, 20 nuts, 21 peripheral hardware connectors, 22 prompt patches.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.
Referring to Fig.1-4, a kind of near field adapted local cosine transform antenna applied to RFID, including antenna housing 1, antenna circuit mould
Block 2 and pedestal 3, antenna housing 1 and 3 junction of pedestal are equipped with matched sealing ring, can so increase antenna housing 1
With the leakproofness of the formed installation space of pedestal 3；Antenna housing 1 be ABS engineering plastics, antenna housing 1 by blow molding one at
Type, this material had not only had excellent heat-resisting weatherability, dimensional stability and the impact resistance of PC resin, but also had ABS resin
Excellent processing fluidity is applied in thin-walled and complicated shape product, is able to maintain its excellent performance, and keep plastics and one
The mouldability of the material of kind of ester composition, cheap and long service life and will not block signal receiving and transmitting；Antenna case
The inside of body 1 is equipped with damp-proof layer 8, and damp-proof layer 8 has preferable moisture-proof and water removal effect as made by the poly- urine ethylene expanded
Fruit；It can remove the moisture in 3 stroke sealing space of antenna housing 1 and pedestal by damp-proof layer 8, prevent antenna circuit module 2
Dampness.
Pedestal 3 is equipped with mounting plate 4, and antenna circuit module 2 is connected by buffer gear with mounting plate 4, buffer gear
Including four T-bars 6 being fixed on mounting plate 4, four T-bars 6 are stainless steel material and the threaded upper ends with mounting plate 4
Connection；The top of mounting plate 4 is equipped with connecting plate 5, is set on connecting plate 5 there are four sliding eye, four T-bars 6 run through sliding eye
And be slidably connected with it, four T-bars 6 are slidably connected through connecting plate 5 and with it, are equipped between connecting plate 5 and mounting plate 4
Multiple first springs 7 can carry out bumper and absorbing shock to connecting plate 5 by the first spring 7, so when antenna housing 1 is collided
It realizes and 2 bumper and absorbing shock of antenna circuit module is protected；The both ends of first spring 7 make the first spring by metal nail bending setting
7 are connected with mounting plate 4 and connecting plate 5；Antenna circuit module 2 is fixed by screws on connecting plate 5, antenna circuit module 2
For can be with adapted local cosine transform antenna.
Specifically, near field focus antenna cardinal principle be control array in each unit phase, make each unit away from
It is overlapped from the field strength on Chosen Point at front fo, to form the effect of focusing in array near field position；In planar array
It is focused at array antenna fo, the phase of each unit to focal point must be identical, is just able to achieve in-phase stacking, makes focusing effect most
Good, this is the prior art, is not repeated herein.
Pedestal 3 offsets with the port of antenna housing 1 and is connected by four bindiny mechanisms, and bindiny mechanism includes and pedestal
The link block 12 that 3 upper ends are fixedly connected, link block 12 are connected by screw with pedestal 3；Antenna housing 1 is opposite with pedestal 3
It is equipped with mounting groove 11 on one side, mounting groove 11 matches with link block 12, and link block 12 is equipped with sliding groove 13, slides in sliding groove 13
It is dynamic to be connected with sliding panel 14, multiple second springs 15, sliding panel 14 and second spring are equipped between sliding panel 14 and sliding groove 13
15 it is opposite be fixedly connected with fixture block 16 on one side, the one side opposite with sliding groove 13 of mounting groove 11 is prolonged equipped with card slot 17, fixture block 16
It extends in card slot 17, follow block 18 is slidably connected in card slot 17, follow block 18 offsets with fixture block 16, and follow block 18 is opposite with fixture block 16
It is equipped with push rod 19 on one side, push rod 19 is slidably connected through antenna housing 1 and with it, and antenna housing 1 is equipped with slightly larger with push rod 19
Intercommunicating pore, push rod 19 runs through intercommunicating pore, and the material of push rod 19 is stainless steel reality bar.
Specifically, since it is arcwall face, being under pressure when the trough rim of the arcwall face of fixture block 16 and mounting groove 11 offsets
When, fixture block 16 is slided into sliding groove 13 drives sliding panel 14 to slide, and second spring 15 is compressed；Fixture block 16 and mounting groove 11
Inner wall offsets and slides into mounting groove 11,, can be under the action of second spring 15 when fixture block 16 slides at card slot 17
It pushes sliding panel 14 and fixture block 16 to slide, and extends to fixture block 16 in card slot 17, so realize the installation to antenna housing 1；
When removing antenna housing 1, master worker can be disengaged it from threaded portion with rotating screw cap 20 and be moved far from 1 direction of antenna housing
Dynamic, then master worker pushes push rod 19 mobile to the direction of antenna housing 1, and follow block 18 and fixture block 16 offset and keep it de- at this time
Mobile from 17 direction of card slot, when that can not push push rod 19, fixture block 16 completely disengages card slot 17 at this time, in this way, can be by antenna
Shell 1 disassembles, more convenient quick.
Fixture block 16 is set as arcwall face close to 11 inner top of mounting groove on one side, when the arcwall face and mounting groove 11 of fixture block 16
Trough rim when offseting, be arranged by arcwall face, it is mobile that fixture block 16 can be squeezed；19 top of push rod is arranged with screw thread, push rod 19
Outer sheath is equipped with the nut 20 that is threadedly coupled with it, and nut 20 offsets with antenna housing 1, and nut 20 turns on screw thread, can be with
Push rod 19 is limited, it is placed and accidentally touches and move；
It is set on pedestal 3 there are four mounting blocks 9, is easily installed pedestal 3 through mounting hole 10 is equipped on four mounting blocks 9；
The upper surface of antenna housing 1 is equipped with prompt patch 22, antenna circuit module 2 be equipped with the peripheral hardware connector 21 that is electrically connected, just
Connect in computer system or recognizer, peripheral hardware connector 21 through antenna housing 1 and with its movable connection, antenna housing
1 is equipped with the connectivity slot of installation peripheral hardware connector 21, and peripheral hardware connector 21 can be slidably connected on the installation direction of connectivity slot.
In the present invention, when installing antenna housing 1, master worker can make 11 sets of mounting groove connecting with hand held antenna shell 1
It connects on block 12 and pushes antenna housing 1；When the trough rim of the arcwall face of fixture block 16 and mounting groove 11 offsets, since it is arc
Face, when being under pressure, fixture block 16 is slided into sliding groove 13 drives sliding panel 14 to slide, and second spring 15 is compressed；Fixture block 16
It offsets with the inner wall of mounting groove 11 and is slided into mounting groove 11, when fixture block 16 slides at card slot 17, in second spring 15
Under the action of, sliding panel 14 and fixture block 16 can be pushed to slide, and extend to fixture block 16 in card slot 17, so realized to antenna
The installation of shell 1；When removing antenna housing 1, master worker can be disengaged it from threaded portion with rotating screw cap 20 and far from day
1 direction of line shell is mobile, and then master worker pushes push rod 19 mobile to the direction of antenna housing 1, at this time follow block 18 and fixture block
16 offset and disengage it from the movement of 17 direction of card slot, and when that can not push push rod 19, fixture block 16 completely disengages card slot 17 at this time, such as
This, antenna housing 1 can be disassembled；It is so relatively simple to the installing and dismounting of antenna housing 1 quick, it is convenient for master worker
Antenna circuit module 2 is repaired, provides convenience for staff.
When antenna housing 1 is beaten or collided, connecting plate 5 is slided up and down in multiple T-bars 6, multiple first
Under the action of spring 7, bumper and absorbing shock can be carried out to connecting plate 5, bumper and absorbing shock is carried out to antenna circuit module 2 in this way, realizing,
It realizes the protection to antenna circuit module 2, increases its service life.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Anyone skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (7)
1. a kind of near field adapted local cosine transform antenna applied to RFID, including antenna housing (1), antenna circuit module (2) and bottom
Seat (3), which is characterized in that the pedestal (3) be equipped with mounting plate (4), the antenna circuit module (2) by buffer gear with
Mounting plate (4) is connected, and the pedestal (3) offsets with the port of antenna housing (1) and is connected by four bindiny mechanisms, institute
It states and is set on pedestal (3) there are four mounting blocks (9), the upper surface of the antenna housing (1) is equipped with prompt patch (22), the antenna
Circuit module (2) be equipped with the peripheral hardware connector (21) that is electrically connected, the peripheral hardware connector (21) through antenna housing (1) simultaneously
With its movable connection.
2. a kind of near field adapted local cosine transform antenna applied to RFID according to claim 1, which is characterized in that described slow
Punch mechanism includes four T-bars (6) being fixed on mounting plate (4), and the top of the mounting plate (4) is equipped with connecting plate (5), and four
A T-bar (6) is slidably connected through connecting plate (5) and with it, is equipped between the connecting plate (5) and mounting plate (4)
Multiple first springs (7), the antenna circuit module (2) are fixed by screws on connecting plate (5).
3. a kind of near field adapted local cosine transform antenna applied to RFID according to claim 1, which is characterized in that the day
The inside of line shell (1) is equipped with damp-proof layer (8).
4. a kind of near field adapted local cosine transform antenna applied to RFID according to claim 1, which is characterized in that the company
Connection mechanism includes the link block (12) being fixedly connected with pedestal (3) upper end, the antenna housing (1) and pedestal (3) it is opposite one
Face is equipped with mounting groove (11), and the mounting groove (11) matches with link block (12), and the link block (12) is equipped with sliding groove
(13), it slidably connects sliding panel (14) in the sliding groove (13), is equipped between the sliding panel (14) and sliding groove (13)
Multiple second springs (15), the sliding panel (14) it is opposite with second spring (15) be fixedly connected with fixture block (16), institute on one side
It states mounting groove (11) and sliding groove (13) opposite one side is equipped with card slot (17), the fixture block (16) extends in card slot (17),
It is slidably connected follow block (18) in the card slot (17), the follow block (18) offsets with fixture block (16), the follow block (18) and card
The opposite one side of block (16) is equipped with push rod (19), and the push rod (19) is slidably connected through antenna housing (1) and with it.
5. a kind of near field adapted local cosine transform antenna applied to RFID according to claim 4, which is characterized in that the card
Block (16) is set as arcwall face close to mounting groove (11) inner top on one side.
6. a kind of near field adapted local cosine transform antenna applied to RFID according to claim 4, which is characterized in that described to push away
Bar (19) top is arranged with screw thread, and the outer sheath of the push rod (19) is equipped with the nut (20) being threadedly coupled with it, the nut
(20) it offsets with antenna housing (1).
7. a kind of near field adapted local cosine transform antenna applied to RFID according to claim 1, four mounting blocks (9)
On through be equipped with mounting hole (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910571904.2A CN110311207A (en) | 2019-06-28 | 2019-06-28 | A kind of near field adapted local cosine transform antenna applied to RFID |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910571904.2A CN110311207A (en) | 2019-06-28 | 2019-06-28 | A kind of near field adapted local cosine transform antenna applied to RFID |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110311207A true CN110311207A (en) | 2019-10-08 |
Family
ID=68077761
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910571904.2A Pending CN110311207A (en) | 2019-06-28 | 2019-06-28 | A kind of near field adapted local cosine transform antenna applied to RFID |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110311207A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111641017A (en) * | 2020-05-28 | 2020-09-08 | 深圳市晓控通信科技有限公司 | High antenna of security |
| CN112178429A (en) * | 2020-09-28 | 2021-01-05 | 成都易信达科技股份有限公司 | Bluetooth communication intelligence well lid test terminal |
| CN112683167A (en) * | 2020-12-17 | 2021-04-20 | 上海嗨酷强供应链信息技术有限公司 | Based on AR volume side equipment |
| CN113488768A (en) * | 2021-06-21 | 2021-10-08 | 深圳市中天迅通信技术股份有限公司 | Receiving antenna for wireless charging coil |
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| CN111641017A (en) * | 2020-05-28 | 2020-09-08 | 深圳市晓控通信科技有限公司 | High antenna of security |
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| CN113488768A (en) * | 2021-06-21 | 2021-10-08 | 深圳市中天迅通信技术股份有限公司 | Receiving antenna for wireless charging coil |
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Application publication date: 20191008 |