CN103679090B - Method and system for detecting object passing - Google Patents
Method and system for detecting object passing Download PDFInfo
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- CN103679090B CN103679090B CN201210476823.2A CN201210476823A CN103679090B CN 103679090 B CN103679090 B CN 103679090B CN 201210476823 A CN201210476823 A CN 201210476823A CN 103679090 B CN103679090 B CN 103679090B
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- 238000000034 method Methods 0.000 title claims abstract description 26
- 230000010287 polarization Effects 0.000 claims abstract description 63
- 239000002184 metal Substances 0.000 claims abstract description 30
- 229910052751 metal Inorganic materials 0.000 claims abstract description 30
- 238000001514 detection method Methods 0.000 claims description 35
- 239000010931 gold Substances 0.000 claims description 2
- 229910052737 gold Inorganic materials 0.000 claims description 2
- 238000006243 chemical reaction Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 11
- 230000005684 electric field Effects 0.000 description 9
- 239000004020 conductor Substances 0.000 description 6
- 238000004020 luminiscence type Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
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Abstract
The invention relates to a method and a system for detecting the passing of an object, wherein the method comprises the following steps: (a) providing an object passing area; (b) disposing a radio identification reader on a side of the object-passing region, the radio identification reader having a first polarized antenna capable of transmitting a first polarized wave to a metal portion of a passing object, the metal portion capable of reflecting the first polarized wave and converting the first polarized wave into a second polarized wave having an opposite polarization direction; and (c) arranging a wireless identification tag in the reflection direction of the first polarized wave, wherein the wireless identification tag is provided with a second polarized antenna, and the polarization direction of the second polarized antenna is opposite to that of the first polarized antenna, so that the second polarized antenna can receive the second polarized wave to actuate the wireless identification tag, and further, the object passing is judged.
Description
Technical field
The present invention is about a kind of object detecting method and system thereof, leads to especially with regard to one detection object
The method crossed and system thereof.
Background technology
The method that known detection object passes through is mostly based on optical detecting method, such as China's issued patents
No. I242652 disclosed " method that detection object passes through ", it is to use multiple light-emitting components and multiple
Receive element and constitute detecting system, and utilize light blocking method to carry out the interpretation that object passes through.But, above-mentioned
Optical detecting method is because of the considerable luminescence of usage quantity and receives element, causes detecting system to build cost
It is greatly improved.Additionally, a large amount of power consumptions using luminescence and reception element also can make detecting system are big
Width increases.
Therefore, it is necessary to the method that offer one is innovated and the detection object of tool progressive passes through and system thereof,
To solve the problems referred to above.
Summary of the invention
The present invention provides a kind of and detects the method that object passes through, and the method comprises the following steps: (a) provides one
Object passes through region；B () arranges a wireless identification reader in this object side by region, this is wireless
Identifying that reader has one first poliarizing antenna, this first poliarizing antenna can launch one first polarized wave to one
By a metal part of object, this metal part can reflect this first polarization and involve this first polarized wave
It is converted into one second polarized wave that polarised direction is contrary；And (c) arranges a wireless identification label in this first pole
Changing the reflection direction of ripple, this wireless identification label has one second poliarizing antenna, this second poliarizing antenna
Polarised direction is contrary with the polarised direction of this first poliarizing antenna, so that this second poliarizing antenna can receive
This second polarized wave and this wireless identification label of start, and then judge that object passes through.
The present invention also provides for a kind of detecting the system that object passes through, including: at least one wireless identification reader,
Being disposed on the object side by region, this wireless identification reader has one first poliarizing antenna,
This first poliarizing antenna can launch one first polarized wave to one by a metal part of object, this metal portion
Point can reflect this first polarization to involve this first polarized wave is converted into one second polarization that polarised direction is contrary
Ripple；And at least one wireless identification label, it is disposed on the reflection direction of this first polarized wave, this radio identification
Distinguishing label has one second poliarizing antenna, and the polarised direction of this second poliarizing antenna is and this first polarization sky
The polarised direction of line is contrary, and this second poliarizing antenna can receive this second polarized wave and this wireless identification of start
Label, and then judge that object passes through.
The present invention be poliarizing antenna contrary for two kinds of polarised directions is respectively arranged at wireless identification reader and
Wireless identification label, and by the reflecting polarised ripple behind antenna polarization ripple incidence metal surface, there is polarization side
Characteristic to reversion, it is achieved the detection that object passes through.The present invention has reduction system and builds cost, reduction
Systematic electricity is lost, prevents adjacent multizone object from being disturbed by detection and promoting effect of system dependability.
Accompanying drawing explanation
The present invention that shows Fig. 1 detects the flow chart of the method that object passes through；
The present invention that shows Fig. 2 detects the schematic diagram of the system that object passes through；
Fig. 3 shows the reading schematic diagram after wireless identification label start；
Fig. 4 shows the electric field vector scattergram of circularly polarised wave；
Fig. 5 shows the left-handed and schematic diagram of right-handed circular polarization ripple；
Fig. 6 shows that the incidence of the perfect conductor of electromagnetic wave incident one involves echo schematic diagram；
Fig. 7 shows the electric field vector scattergram of elliptically polarised wave；
Fig. 8 shows the left-handed and schematic diagram of Right-hand elliptical polarization ripple；
The present invention that shows Fig. 9 detects the message processing flow figure of the system that object passes through；
Figure 10 shows that second embodiment of the invention detects the schematic diagram of the system that object passes through；And
Figure 11 shows that second embodiment of the invention detects the message processing flow figure of the system that object passes through.
[main element label declaration]
10 wireless identification reader 11 first poliarizing antennas
20 object 21 metal parts
30 wireless identification label 31 second poliarizing antennas
A object passes through region ani incidence wave
Anr echo Ei incident electric field component
The magnetic field of Er reflected field component Hi incidence wave
The magnetic field R rod member of Hr echo
W1 another first polarized wave of the first polarized wave W1'
W2 another second polarized wave of the second polarized wave W2'
Detailed description of the invention
The present invention that shows Fig. 1 detects the flow chart of the method that object passes through.Fig. 2 shows detectable substance of the present invention
The schematic diagram of the system that body passes through.Step S11 and Fig. 2 please refer to Fig. 1 a, it is provided that object leads to
Crossing region a, this object passes through region a selected from following one: porte-cochere, production line and logistics district.
In the present embodiment, this object is vehicle channel by region a.
Please refer to step S12 and Fig. 2 of Fig. 1, (RFID reads to arrange a wireless identification reader
Device) 10 in this object by the side of region a, this wireless identification reader 10 has one first polarization sky
Line 11, this first poliarizing antenna 11 can launch the one first polarized wave W1 to gold medal by object 20
Belonging to part 21, this metal part 21 can reflect this first polarized wave W1 and by this first polarized wave W1
It is converted into the one second polarized wave W2 that polarised direction is contrary.In the present embodiment, this object 20 is vehicle,
This metal part 21 is vehicle sheet metal part.
Additionally, this wireless identification reader 10 is securable on a rod member R, and this first poliarizing antenna
11 selected from following one: circular polarized antenna and elliptic polarized antenna.
Please refer to step S13 and Fig. 2 of Fig. 1, a wireless identification label (RFID label tag) 30 is set
In the reflection direction of this first polarized wave W1, this wireless identification label 30 has one second poliarizing antenna 31,
The polarised direction of this second poliarizing antenna 31 is contrary with the polarised direction of this first poliarizing antenna 11, with
Make this second poliarizing antenna 31 can receive this second polarized wave W2 and this wireless identification label 30 of start, enter
And judge that object passes through.
Referring to Fig. 3, it is the reading schematic diagram after showing wireless identification label start.This wireless identification
After label 30 start, this second poliarizing antenna 31 can be launched another second polarized wave W2' and pass through thing to this
The metal part 21 of body 20, this metal part 21 can reflect this another the second polarized wave W2' and this is another
One second polarized wave W2' is converted into another first polarized wave W1' that polarised direction is contrary, this wireless identification
First poliarizing antenna 11 of reader 10 can receive this another the first polarized wave W1' and judge that object leads to
Cross.
In the present embodiment, this wireless identification label 30 is also securable on this rod member R, and with this nothing
At a distance, and this second poliarizing antenna 31 is selected from following one: circle for line identification reader 10
Poliarizing antenna and elliptic polarized antenna.
Additionally, due to the polarised direction of this second poliarizing antenna 31 is and the pole of this first poliarizing antenna 11
Change in opposite direction, therefore, when not having object to pass through, the first polarization sky of this wireless identification reader 10
This first polarized wave W1 that line 11 is launched is to be converted into this second polarization that polarised direction is contrary
Ripple W2, and this second poliarizing antenna 31 cannot receive this first polarized wave W1 that polarised direction is different,
Therefore this wireless identification label 30 cannot be by start and reading；Otherwise, when there being object to pass through, this radio identification
This first polarized wave W1 that first poliarizing antenna 11 of other reader 10 is launched can be reflected and be changed
Polarization this second polarized wave W2 in opposite direction, this second poliarizing antenna 31 can receive this second polarization
Ripple W2 and this wireless identification label 30 of start, and then judge that object passes through.
Fig. 4 shows the electric field vector scattergram of circularly polarised wave.Fig. 5 shows left-handed and right-handed circular polarization ripple
Schematic diagram.Please refer to Fig. 2, Fig. 4 and Fig. 5, in the present embodiment, when this first poliarizing antenna
11 and this second poliarizing antenna 31 when being circular polarized antenna, for meeting the polarization of this second poliarizing antenna 31
The condition that direction is contrary with the polarised direction of this first poliarizing antenna 11, if this wireless identification reader 10
The first poliarizing antenna 11 be right-handed circular polarization antenna, then the second polarization sky of this wireless identification label 30
Line 31 is necessary for left-hand circular polarization antenna, and now, this first polarized wave is right-handed circular polarization ripple, and this
Two polarized waves are left-hand circular polarization ripple.
In another embodiment, if the first poliarizing antenna 11 of this wireless identification reader 10 is left-handed circle
Poliarizing antenna, then the second poliarizing antenna 31 of this wireless identification label 30 is necessary for right-handed circular polarization antenna,
Now, this first polarized wave is left-hand circular polarization ripple, and this second polarized wave is right-handed circular polarization ripple.
Referring to Fig. 6, it is that the incidence showing the perfect conductor of electromagnetic wave incident one involves echo schematic diagram.
In EM theory, when a uniform plane wave incident one perfect conductor, at the interface of two media
Boundary condition need to meet electric field tangential component seriality, and in its electric field tangential component of surface of perfect conductor
It is zero so that | Ei (incident electric field component) |+| Er (reflected field component) |=0, that is Er=-Ei, wherein incident
The direction of the magnetic field Hr of the magnetic field Hi and echo anr of ripple ani is constant, and the direction of an electric field of electromagnetic wave is firm
Good in 180 degree of reflections.Therefore, if the plane wave of incidence is circularly polarised wave, then it is still circular polarisation after reflection
Ripple, but the direction of rotation of circular polarisation is just contrary, in other words, when right (left) hand circular polarization ripple incident is perfect
After conductor, its echo will be converted into a left side (right) hand circular polarization ripple；Similarly, when the oval pole of right (left) rotation
After changing the perfect conductor of ripple incident, its echo will be converted into a left side (right) rotation elliptically polarised wave.
Fig. 7 shows the electric field vector scattergram of elliptically polarised wave.Fig. 8 shows left-handed and Right-hand elliptical polarization
The schematic diagram of ripple.Please refer to Fig. 7 and Fig. 8, in another embodiment, when this first poliarizing antenna
11 and this second poliarizing antenna 31 when being elliptic polarized antenna, for meeting the pole of this second poliarizing antenna 31
Change the condition that direction is contrary with the polarised direction of this first poliarizing antenna 11, if this wireless identification reader
First poliarizing antenna 11 of 10 is Right-hand elliptical polarization antenna, then the second pole of this wireless identification label 30
Changing antenna 31 and be necessary for left-hand elliptical polarization antenna, now, this first polarized wave is Right-hand elliptical polarization ripple,
And this second polarized wave is left-hand elliptically polarized wave.
In another embodiment, if the first poliarizing antenna 11 of this wireless identification reader 10 is left-handed ellipse
Circular polarized antenna, then the second poliarizing antenna 31 of this wireless identification label 30 is necessary for Right-hand elliptical polarization
Antenna, now, this first polarized wave is left-hand elliptically polarized wave, and this second polarized wave is right-handed elliptical
Polarized wave.
Referring again to Fig. 2, the present invention detects the system that object passes through and includes a wireless identification reader (RFID
Reader) 10 and a wireless identification label (RFID label tag) 30.This wireless identification reader 10 is to arrange
In the object side by region a, this wireless identification reader 10 has one first poliarizing antenna 11,
This first poliarizing antenna 11 can launch the one first polarized wave W1 to metal part by object 20
21, this metal part 21 can reflect this first polarized wave W1 and this first polarized wave W1 is changed poling
Change one second polarized wave W2 in opposite direction.In the present embodiment, this object is that vehicle is believed by region a
Road, this object 20 is vehicle, and this metal part 21 is vehicle sheet metal part.Additionally, this radio identification
Other reader 10 is securable on a rod member R, and this first poliarizing antenna 11 is selected from following one:
Circular polarized antenna and elliptic polarized antenna.
This wireless identification label 30 is disposed on the reflection direction of this first polarized wave W1, this wireless identification
Label 30 has one second poliarizing antenna 31, the polarised direction of this second poliarizing antenna 31 be with this first
The polarised direction of poliarizing antenna 11 is contrary, and this second poliarizing antenna 31 can receive this second polarized wave W2
And this wireless identification label 30 of start, and then judge that object passes through.In the present embodiment, this radio identification
Distinguishing label 30 is also securable on this rod member R, and with this wireless identification reader 10 at a distance,
And this second poliarizing antenna 31 is selected from following one: circular polarized antenna and elliptic polarized antenna.
The present invention that shows Fig. 9 detects the message processing flow figure of the system that object passes through.Please refer to figure
Step S91 of 3 and Fig. 9, starts RFID reader.
Referring to step S92, read FRID label information, it is to judge whether to read RFID label tag letter
Cease, judge whether read detection FRID label information and judge whether to read other FRID label information.
Referring to step S93, it is determined that vehicle detection state, it is to believe reading detection RFID label tag
During breath, it is determined that detect that vehicle passes through, and detection state is set to TRUE (correctly).
Referring to Figure 10, it is to show the signal that second embodiment of the invention detects the system that object passes through
Figure.The system that second embodiment of the invention detection object passes through includes that (RFID reads two wireless identification readers
Take device) 10 and two wireless identification labels (RFID label tag) 30.Such wireless identification reader 10 is respectively
Being arranged at the object both sides by region a, respectively this wireless identification reader 10 has one first polarization sky
Line 11, respectively this first poliarizing antenna 11 can launch one first polarized wave W1 to by object 20
Metal part 21, this metal part 21 can reflect respectively this first polarized wave W1 and general's respectively this first polarized wave
W1 is converted into the one second polarized wave W2 that polarised direction is contrary.
Such wireless identification label 30 is the reflection direction being respectively arranged at respectively this first polarized wave W1, respectively
This wireless identification label 30 has one second poliarizing antenna 31, respectively the polarization side of this second poliarizing antenna 31
To being contrary with the polarised direction of respectively this first poliarizing antenna 11, respectively this second poliarizing antenna 31 can receive
Respectively this second polarized wave W2 and start respectively this wireless identification label 30, and then judge that object passes through.
Figure 11 shows that second embodiment of the invention detects the message processing flow figure of the system that object passes through.Please
Coordinate step S111 refering to Figure 10 and Figure 11, start two RFID reader.
Referring to step S112, read FRID label information, it is to judge whether to read RFID label tag
Information, judge whether to read detection FRID label information and judge whether to read other RFID label tag letter
Breath.
Referring to step S113, it is determined that vehicle detection state, it must be read detection RFID simultaneously and mark
Sign A and B, and when the detection state of both sides reader is all TRUE (correctly), just judge car to be detected
Place is set by reader.
Above-described embodiment is only principle and effect thereof of the explanation present invention, and the unrestricted present invention, therefore originally
Above-described embodiment is modified and changes the spirit not taking off the present invention by skilled person.The present invention's
Right should be described above listed by right.
Claims (22)
1. detect the method that object passes through, comprise the following steps:
A () provides an object to pass through region；
B () arranges a wireless identification reader in this object side by region, this wireless identification reads
Utensil has one first poliarizing antenna, and this first poliarizing antenna can be launched one first polarized wave and pass through object to one
A metal part, this metal part can reflect this first polarization involve by this first polarized wave change poling
Change one second polarized wave in opposite direction；And
C () arranges a wireless identification label in the reflection direction of this first polarized wave, this wireless identification label
Having one second poliarizing antenna, the polarised direction of this second poliarizing antenna is and the pole of this first poliarizing antenna
Change in opposite direction, so that this second poliarizing antenna can receive this second polarized wave and this wireless identification mark of start
Sign, and then judge that object passes through,
In step (c), after this wireless identification label start, this second poliarizing antenna can launch another second
Polarized wave to should by the metal part of object, this metal part can reflect this another the second polarization involve by
This another the second polarized wave is converted into another first polarized wave that polarised direction is contrary, and this wireless identification reads
First poliarizing antenna of device can receive this another the first polarized wave and judge that object passes through.
The method that detection object the most according to claim 1 passes through, wherein in step (b), should
First poliarizing antenna of wireless identification reader is selected from following one: circular polarized antenna and elliptic polarization sky
Line.
The method that detection object the most according to claim 1 passes through, wherein in step (c), should
Second poliarizing antenna of wireless identification label is selected from following one: circular polarized antenna and elliptic polarized antenna.
The method that detection object the most according to claim 1 passes through, wherein in step (b), should
First poliarizing antenna of wireless identification reader is right-handed circular polarization antenna, and this first polarized wave is dextrorotation circle
Polarized wave, this second polarized wave is left-hand circular polarization ripple；In step (c), the of this wireless identification label
Two poliarizing antennas are left-hand circular polarization antenna.
The method that detection object the most according to claim 1 passes through, wherein in step (b), should
First poliarizing antenna of wireless identification reader is left-hand circular polarization antenna, and this first polarized wave is left-handed circle
Polarized wave, this second polarized wave is right-handed circular polarization ripple；In step (c), the of this wireless identification label
Two poliarizing antennas are right-handed circular polarization antenna.
The method that detection object the most according to claim 1 passes through, wherein in step (b), should
First poliarizing antenna of wireless identification reader is Right-hand elliptical polarization antenna, and this first polarized wave is dextrorotation
Elliptically polarised wave, this second polarized wave is left-hand elliptically polarized wave；In step (c), this wireless identification mark
The second poliarizing antenna signed is left-hand elliptical polarization antenna.
The method that detection object the most according to claim 1 passes through, wherein in step (b), should
First poliarizing antenna of wireless identification reader is left-hand elliptical polarization antenna, and this first polarized wave is left-handed
Elliptically polarised wave, this second polarized wave is Right-hand elliptical polarization ripple；In step (c), this wireless identification mark
The second poliarizing antenna signed is Right-hand elliptical polarization antenna.
The method that detection object the most according to claim 1 passes through, wherein this object is selected by region
One from following: porte-cochere, production line and logistics district.
The method that detection object the most according to claim 1 passes through, wherein this object is vehicle.
The method that detection object the most according to claim 9 passes through, wherein the metal portion of this object
It is divided into the sheet metal part of vehicle.
11. 1 kinds are detected the system that object passes through, including:
At least one wireless identification reader, is disposed on the object side by region, this wireless identification
Reader has one first poliarizing antenna, and this first poliarizing antenna can be launched one first polarized wave and pass through to one
One metal part of object, this metal part can reflect this first polarization and involve the conversion of this first polarized wave
Polarization one second polarized wave in opposite direction；And
At least one wireless identification label, is disposed on the reflection direction of this first polarized wave, this wireless identification
Label has one second poliarizing antenna, and the polarised direction of this second poliarizing antenna is and this first poliarizing antenna
Polarised direction contrary, this second poliarizing antenna can receive this second polarized wave and this wireless identification mark of start
Sign, and then judge that object passes through,
This second poliarizing antenna can launch another second polarized wave to the metal part being somebody's turn to do by object, this gold
Genus part can reflect this another the second polarization and involve that this another the second polarized wave is converted into polarised direction is contrary
Another first polarized wave, the first poliarizing antenna of this wireless identification reader can receive this another the first pole
Change ripple and judge that object passes through.
The system that 12. detection objects according to claim 11 pass through, wherein this wireless identification reads
First poliarizing antenna of device is selected from following one: circular polarized antenna and elliptic polarized antenna.
The system that 13. detection objects according to claim 11 pass through, wherein this wireless identification label
The second poliarizing antenna selected from following one: circular polarized antenna and elliptic polarized antenna.
The system that 14. detection objects according to claim 11 pass through, wherein this wireless identification reads
First poliarizing antenna of device is right-handed circular polarization antenna, and this first polarized wave is right-handed circular polarization ripple, and this is years old
Two polarized waves are left-hand circular polarization ripple, and the second poliarizing antenna of this wireless identification label is left-hand circular polarization sky
Line.
The system that 15. detection objects according to claim 11 pass through, wherein this wireless identification reads
First poliarizing antenna of device is left-hand circular polarization antenna, and this first polarized wave is left-hand circular polarization ripple, and this is years old
Two polarized waves are right-handed circular polarization ripple, and the second poliarizing antenna of this wireless identification label is right-handed circular polarization sky
Line.
The system that 16. detection objects according to claim 11 pass through, wherein this wireless identification reads
First poliarizing antenna of device is Right-hand elliptical polarization antenna, and this first polarized wave is Right-hand elliptical polarization ripple,
This second polarized wave is left-hand elliptically polarized wave, and the second poliarizing antenna of this wireless identification label is left-handed ellipse
Circular polarized antenna.
The system that 17. detection objects according to claim 11 pass through, wherein this wireless identification reads
First poliarizing antenna of device is left-hand elliptical polarization antenna, and this first polarized wave is left-hand elliptically polarized wave,
This second polarized wave is Right-hand elliptical polarization ripple, and the second poliarizing antenna of this wireless identification label is that dextrorotation is ellipse
Circular polarized antenna.
The system that 18. detection objects according to claim 11 pass through, wherein this object passes through region
One selected from following: porte-cochere, production line and logistics district.
The system that 19. detection objects according to claim 11 pass through, wherein this object is vehicle.
The system that 20. detection objects according to claim 19 pass through, wherein the metal portion of this object
It is divided into the sheet metal part of vehicle.
The system that 21. detection objects according to claim 11 pass through, also includes a rod member, this nothing
Line identification reader is fixed on this rod member.
The system that 22. detection objects according to claim 21 pass through, wherein this wireless identification label
It is fixed on this rod member, and with this wireless identification reader at a distance.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW101132238 | 2012-09-05 | ||
| TW101132238A TWI453448B (en) | 2012-09-05 | 2012-09-05 | Methods and systems for detecting objects through |
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| Publication Number | Publication Date |
|---|---|
| CN103679090A CN103679090A (en) | 2014-03-26 |
| CN103679090B true CN103679090B (en) | 2016-12-21 |
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| CN201210476823.2A Expired - Fee Related CN103679090B (en) | 2012-09-05 | 2012-11-21 | Method and system for detecting object passing |
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| Country | Link |
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| CN (1) | CN103679090B (en) |
| TW (1) | TWI453448B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI650730B (en) * | 2014-07-21 | 2019-02-11 | 中國鋼鐵股份有限公司 | Carrier pallet mobile identification system |
| FR3103327B1 (en) * | 2019-11-18 | 2024-04-05 | Psa Automobiles Sa | DEVICE FOR DETECTING IDENTIFICATION ELEMENTS WITH RELAY METASURFACE(S), FOR A SYSTEM |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001273530A (en) * | 2000-03-24 | 2001-10-05 | Toyo Commun Equip Co Ltd | Gate system |
| CN101783696A (en) * | 2009-01-20 | 2010-07-21 | 广升运有限公司 | Interference-free antenna module and WiFi network system using same |
| CN102306266A (en) * | 2011-07-07 | 2012-01-04 | 上海集成电路技术与产业促进中心 | Simulator for radio frequency identification |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7489240B2 (en) * | 2005-05-03 | 2009-02-10 | Qualcomm, Inc. | System and method for 3-D position determination using RFID |
| JP4607802B2 (en) * | 2006-03-16 | 2011-01-05 | 富士通株式会社 | RFID reader / writer |
| US7922085B2 (en) * | 2007-04-13 | 2011-04-12 | Aps Technology Group, Inc. | System, method, apparatus, and computer program product for monitoring the transfer of cargo to and from a transporter |
| CN102254206A (en) * | 2010-05-21 | 2011-11-23 | 上海复莱信息技术有限公司 | Electronic tag device for special occasions |
-
2012
- 2012-09-05 TW TW101132238A patent/TWI453448B/en active
- 2012-11-21 CN CN201210476823.2A patent/CN103679090B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001273530A (en) * | 2000-03-24 | 2001-10-05 | Toyo Commun Equip Co Ltd | Gate system |
| CN101783696A (en) * | 2009-01-20 | 2010-07-21 | 广升运有限公司 | Interference-free antenna module and WiFi network system using same |
| CN102306266A (en) * | 2011-07-07 | 2012-01-04 | 上海集成电路技术与产业促进中心 | Simulator for radio frequency identification |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103679090A (en) | 2014-03-26 |
| TW201411165A (en) | 2014-03-16 |
| TWI453448B (en) | 2014-09-21 |
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