CN103154763A - Rf tag reader for accurate position determination - Google Patents
Rf tag reader for accurate position determination Download PDFInfo
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- CN103154763A CN103154763A CN2010800667566A CN201080066756A CN103154763A CN 103154763 A CN103154763 A CN 103154763A CN 2010800667566 A CN2010800667566 A CN 2010800667566A CN 201080066756 A CN201080066756 A CN 201080066756A CN 103154763 A CN103154763 A CN 103154763A
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- 238000000034 method Methods 0.000 claims abstract description 6
- 230000004044 response Effects 0.000 claims description 26
- 230000009466 transformation Effects 0.000 claims 1
- 238000001514 detection method Methods 0.000 abstract description 4
- 230000006870 function Effects 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 3
- 230000015654 memory Effects 0.000 description 3
- 230000003068 static effect Effects 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 230000001427 coherent effect Effects 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000005055 memory storage Effects 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/02—Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
- G01S13/06—Systems determining position data of a target
- G01S13/42—Simultaneous measurement of distance and other co-ordinates
- G01S13/44—Monopulse radar, i.e. simultaneous lobing
- G01S13/4454—Monopulse radar, i.e. simultaneous lobing phase comparisons monopulse, i.e. comparing the echo signals received by an interferometric antenna arrangement
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
- G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
- G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
- G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
- G06K19/077—Constructional details, e.g. mounting of circuits in the carrier
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L25/00—Recording or indicating positions or identities of vehicles or trains or setting of track apparatus
- B61L25/02—Indicating or recording positions or identities of vehicles or trains
- B61L25/025—Absolute localisation, e.g. providing geodetic coordinates
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L3/00—Devices along the route for controlling devices on the vehicle or train, e.g. to release brake or to operate a warning signal
- B61L3/02—Devices along the route for controlling devices on the vehicle or train, e.g. to release brake or to operate a warning signal at selected places along the route, e.g. intermittent control simultaneous mechanical and electrical control
- B61L3/08—Devices along the route for controlling devices on the vehicle or train, e.g. to release brake or to operate a warning signal at selected places along the route, e.g. intermittent control simultaneous mechanical and electrical control controlling electrically
- B61L3/12—Devices along the route for controlling devices on the vehicle or train, e.g. to release brake or to operate a warning signal at selected places along the route, e.g. intermittent control simultaneous mechanical and electrical control controlling electrically using magnetic or electrostatic induction; using radio waves
- B61L3/125—Devices along the route for controlling devices on the vehicle or train, e.g. to release brake or to operate a warning signal at selected places along the route, e.g. intermittent control simultaneous mechanical and electrical control controlling electrically using magnetic or electrostatic induction; using radio waves using short-range radio transmission
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/02—Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
- G01S13/06—Systems determining position data of a target
- G01S13/42—Simultaneous measurement of distance and other co-ordinates
- G01S13/44—Monopulse radar, i.e. simultaneous lobing
- G01S13/4463—Monopulse radar, i.e. simultaneous lobing using phased arrays
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K17/00—Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations
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- 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
- H01Q1/2216—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 interrogator/reader equipment
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/0006—Particular feeding systems
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q25/00—Antennas or antenna systems providing at least two radiating patterns
- H01Q25/02—Antennas or antenna systems providing at least two radiating patterns providing sum and difference patterns
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/74—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems
- G01S13/75—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems using transponders powered from received waves, e.g. using passive transponders, or using passive reflectors
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- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- Mechanical Engineering (AREA)
- Theoretical Computer Science (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Radar Systems Or Details Thereof (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
A system for accurate positioning using radio frequency tags and corresponding method thereof. The system comprises at least two antennas in phased array combination and an RF tag position determination unit coupled with the at least two antennas. The system also comprises a main RF output and a position detection output. The RF tag position determination unit arranged to generate a position detection signal at the position detection output responsive to comparison of a signal received by each of the at least two antennas.
Description
Background technology
The position of the radio frequency that tag interrogator can read (RF) label can be in the areal coverage of interrogator reading antenna the optional position.Usually, the width of areal coverage is wider than for determining that accurately the RF label is with respect to the desired locations of the position of tag interrogator.
Existing solution known for inventor adopts to be had up to 1 meter or the tag interrogator that reads areal coverage of larger width.Further, signal is processed the position that can be used for estimating based on the signal shape that receives the RF label.According to the uncertainty (uncertainty) of RF label position and the input of other data, can calculate the safe distance in the delivery vehicle the place ahead with tag interrogator with keeping safe separation distance.Because safe separation distance when the uncertainty of position increases also correspondingly increases, thereby need to be than spacing distance larger when the location aware.When using, for the delivery vehicle operator, larger spacer defection causes lower delivery vehicle throughput (vehicle throughput), and finally causes income still less.
Description of drawings
With the non-limiting way example, one or more embodiment are shown by way of example in each figure of accompanying drawing, wherein, each element with same reference numerals represents identical/similar element, wherein:
Fig. 1 is the high-level functional architecture figure that comprises the system of position determination system embodiment;
Fig. 2 is the high-level functional architecture figure of the computer system that can be combined with embodiment;
Fig. 3 is the high-level functional architecture figure according to the details drawing of the position determination system of another embodiment; With
Fig. 4 is the figure line according to the signal intensity of an embodiment.
Embodiment
Fig. 1 illustrates the high-level functional architecture figure of system 100, can very advantageously be incorporated into system 100 according to the embodiment of the position determination system 102 of an embodiment and use.System 100 is example system, shows the delivery vehicle 104 (for example tramcar) with running-surface 106 (for example track) adjacency.For showing clear and easy to understand, Fig. 1 is illustrated in the side view of the delivery vehicle 104 on running-surface 106.
As shown in the figure, delivery vehicle 104 comprises position determination system 102, and follows into the surface and 106 advance on direction A.Delivery vehicle 104 is through radio frequency (RF) label 108, for example radio-frequency (RF) identification (RFID) label.In at least some embodiment, can use alternative RF label apparatus to replace the RFID label.In at least some embodiment, label 108 comprises the RF label that is configured under RF frequency used cremasteric reflex or replys performance.In at least some embodiment, RF label 108 is fixed to another parts and/or is embedded in another parts.RF label 108 can be passive device and/or active device.
Each antenna 110,112 is combined to form aerial array, this aerial array is configured to be created on corresponding predetermined areal coverage (namely, antenna beamwidth) signal in, the predetermined areal coverage of described correspondence refer to respectively antenna coverage 114 (as the double dot dash line indication) and the antenna coverage 116 (as the dot-and-dash line indication) in respective coverage areas 114,116.These two kinds of antenna coverage make up to form with antenna mode or poor antenna mode in the phase coherence mode due to antenna and produce, that is, described antenna is used as the phased antenna array.Described areal coverage is the intersection on described aerial array pattern and ground (label plane), and each antenna transmitted signal and receiving from RF label 108 is responded, and is schematically shown as signal 120,122 respectively.Antenna sends the signal of a conduct and array, and receives the signal of conduct simultaneously and array and poor array.
In at least some embodiment, each antenna 110,112 generates electromagnetic signal.In at least some embodiment, the width of antenna coverage can be in 0.5 meter (m) magnitude to 1.5m.In at least some embodiment, can use more than two antennas to form aerial array.In at least some embodiment, can use single phased-array antenna to substitute each antenna 110,112.
In operation, each aerial array 110,112 is configured to interrogating signal is sent to RF label 108.In response to receiving described interrogating signal from aerial array (antenna 110 or antenna 112), RF label 108 sends response signal.In at least some embodiment, described response signal can be reflected signal or answer signal.
In at least some embodiment, one or more elements of position determination system 102 can be positioned at inside and/or the outside of delivery vehicle 104.In at least some embodiment, each element of position determination system 102 is positioned at the outside of delivery vehicle 104, and in other embodiments, each element of position determination system is positioned at the inside of delivery vehicle.
The spacing of each antenna and direction are according to the array pattern that will realize and difference.In at least some embodiment, aerial array realization in the entity antenna encapsulation of a discrete component with each antenna of expression.The polarization of aerial array and label 108 (that is, the direction of electric field intensity) can be intersected or and parallel track according to using with track (that is, running-surface 106).In at least some embodiment, the transmission of interrogating signal can be carried out by an antenna or this two antennas of being constructed in two antennas with array.
Fig. 2 illustrates the high-level functional architecture figure of the computer system 200 that can be combined with an embodiment.Computer system 200 comprises: processor 202 (alternately can refer to treating apparatus), I/O (I/O) device 204, storer 206, survey I/O device 208, these devices of computer system connect communicatedly by bus 210 or other connection communication mechanism.In addition, computer system 200 also comprises: link antenna 110,112 connecting portion via surveying I/O device 208, that is, be configured to (for example via bus 210) and analog rf signal processed and is converted to the circuit efferent of digital detection signal.
Surveying I/O device 208 comprises: position determination unit (PDU) 124, main RF signal efferent 126, and position sensing signal efferent 128.
In at least some embodiment, processor 202 can be controller and/or application-specific IC (ASIC), and it is configured to carry out one group of instruction, the instruction that for example embodies by embodiment.
Storer 206 (also can refer to computer-readable medium) can comprise: random access memory (RAM) or other dynamic storage device, for example the location positioning function element 212, and wherein RAM or other dynamic storage device are connected to bus 210 to store data and/or the instruction that will pass through processor 202 execution.Storer 206 also is used in the implementation of the instruction that will pass through processor 202 execution, storage temporary variable or other intermediate informations.Storer 206 also can comprise: ROM (read-only memory) (ROM) or other static memories, ROM or other static memories are connected to bus 210 with static information and the instruction of storage of processor 202.
Memory storage (optional dotted line frame 212), for example disk, CD or electromagnetic disc, also can be provided and be connected to bus 210 with storage data and/or instruction.
Location positioning function element 212 comprises set of circuits, and described set of circuits is configured to determine that RF label 108 is with respect to antenna 110,112 position.
In at least some embodiment, location positioning function element 212 comprises one group of executable instruction, and described instruction makes processor that location positioning function according to an embodiment is provided when being carried out by processor 202.
I/O device 204 can comprise: the input/output device of input media, output unit and/or combination, thus can realize user interactions.Input media can comprise: for example, keyboard, key plate, mouse, touch ball, Trackpad and/or cursor direction key are used for information and order are sent to processor 202.Output unit can comprise: for example, display, printer, audio frequency compositor etc. are used for information is sent to the user.In at least some embodiment, I/O device 204 can comprise: serial and/or parallel join mechanism, thus can realize the transmission of one or more files and/or order, the network connection architecture of Ethernet or other types for example.
In at least one embodiment, this positioning system is connected directly to self-contained (on-board) control system, for example self-contained Train Control processor by one of ethernet communication agreement or multiple serial interface protocol.
Fig. 3 illustrates the high-level functional architecture figure of at least a portion of position determination system 102.Especially, Fig. 3 illustrates the details drawing according to the label position determining unit 124 of an embodiment.Position determination unit 124 comprises: RF shunt parts 300 and the 2nd RF shunt parts 302, each RF shunt parts receive single input signal from antenna 110,112 respectively.That is to say, shunt parts 300 receive the signal input from antenna 110, and shunt parts 302 receive the signal input from antenna 112.The signal input that antenna 110,112 receives is by 108 transmission of RF label and by antenna 110,112 response signals that receive.
In at least some embodiment, the integrated component of one or two the comprised aerial array in RF shunt parts 300,302, for example, shunt 300 can comprise the part of antenna 110.
Shunt part 300 will be sent to summation combiner unit 304 and ask subtractive combination device parts 306 from the response signal that antenna 110 receives.In at least some embodiment, shunt parts 300 are sent to the response signal that receives simultaneously summation combiner unit 304 and ask subtractive combination device parts 306, similarly, shunt parts 302 will be sent to summation combiner unit 304 and ask subtractive combination device parts 306 from the response signal that antenna 112 receives.
In at least some embodiment, the individual antenna device, the antenna 110,112 in single assembled unit for example can comprise shunt parts 300,302, summation combiner unit 304 and ask the function of subtractive combination device parts 306.
308 pairs of phase place comparing units from generating of receiving of summation component 304 and signal with compare from the phase differential between the difference signal that generates of asking poor parts 306 receptions.Phase place comparing unit 308 is sent to position sensing signal efferent 128 with consequent signal.Changing at consequent phase signal is during from 0 ° (degree) to 180 ° (degree), and position sensing signal efferent 128 is indicated: position determination system 102, particularly antenna 110,112 are positioned at the top of RF label 108.That is to say, antenna 110,112 is positioned at RF label 108 both sides, and/or RF label 108 and antenna 110,112 are at a distance of the distances that equate.In at least some embodiment, based on determining that with the preset distance of 180 degree phase differential phase differential changes.
In this way, main RF signal efferent 126 is used for identification RF label 108, and position sensing signal efferent 128 is used for the central point process RF label top between identification aerial 110,112.
Fig. 3 also illustrates signal generator 310, and it comprises the part of position determination unit 124, and is configured to generate interrogating signal to be sent to label 108.The interrogating signal that comes automatic signal generator 310 that generates is provided to summation combiner unit 304, and summation combiner unit 304 is divided into two signals with the interrogating signal that receives, and these two signals are sent to respectively antenna 110,112.The detectable signal as phased signal that antenna 110,112 will receive transmits to label 108.
In at least some embodiment, signal generator 310 can comprise the parts that separate with position determination unit 124.Further, in certain embodiments, signal generator 310 can comprise more than a signal generator, is used for generating and will passes through antenna 110,112 interrogating signals that transmit.
Fig. 4 illustrate generate respectively from summation component 304 and ask figure line poor parts 306 and signal intensity signal and difference signal.Fig. 4 illustrates when antenna moves through label as the crow flies, by adopt and-antenna that two neighbours of subtractive combination form separate is from the signal of replying or retro-reflective label receives.Fig. 4 also illustrate determined and signal and difference signal between phase differential.The vertical axis of the figure left of Fig. 4 represents the relative signal intensity with signal and difference signal.Right-hand vertical axis of figure represent and signal and difference signal between phase differential.Horizontal axis represents the distance with respect to central point.
Those of ordinary skills will be easy to find out, the disclosed embodiments have realized one or more advantages as above.After having read aforementioned specification, those of ordinary skills can implement various changes, be equal to and replace and various other embodiment as disclosed in this paper broad sense.Therefore, after mandate of the present invention, protection domain is intended to only be subject to the restriction content that comprises in appended claims and equivalent thereof.
Claims (20)
1. one kind is utilized radio frequency (RF) the label accurately system of location, and described system comprises:
Adopt at least two antennas of phased array array configuration;
RF label position determining unit, it is connected and comprises main RF efferent and position sensing efferent with described at least two antennas, described RF label position determining unit is configured to: in response to the signal that is received by the combination of described phased array is compared, and generate the position sensing signal at described position sensing efferent place.
2. the system as claimed in claim 1, wherein, described RF label position determining unit is configured to: change comparing for the phase differential between the phase coherence combination of the signal that is received by each antenna in described at least two antennas.
3. the system as claimed in claim 1, wherein, described RF label position determining unit further comprises:
Signal generator, it is connected with at least one antenna in described two antennas and is configured to be used for transmitting at least one antenna in described at least two antennas generates interrogating signal at least.
4. system as claimed in claim 3, wherein, described signal generator is connected with each antenna in described two antennas at least.
5. the system as claimed in claim 1, wherein, described RF label position determining unit further comprises:
Phase comparator, it is configured to generate described position sensing signal;
Summation component, it is connected to described phase comparator and described at least two antennas; With
Ask poor parts, it is connected to described phase comparator and described at least two antennas.
6. system as claimed in claim 5, wherein, described summation component is configured to receive:
The first input signal from the first antenna in described at least two antennas; With
The second input signal from the second antenna in described at least two antennas.
7. system as claimed in claim 5, wherein, describedly ask poor parts to be configured to receive:
The first input signal from the first antenna in described at least two antennas; With
The second input signal from the second antenna in described at least two antennas.
8. system as claimed in claim 5, wherein, described summation component be configured to generate expression from the signal sum of described at least two antenna receptions and signal.
9. system as claimed in claim 5 wherein, describedly asks poor parts to be configured to generate expression from the difference signal of the difference of the signal of described at least two antenna receptions.
10. system as claimed in claim 5, wherein, described RF label position determining unit further comprises:
The first shunt parts, its be connected to the first antenna in described at least two antennas and be configured to send with from least two corresponding signals of the input signal of described the first antenna reception, described the first shunt parts are connected to described summation component and describedly ask poor parts, and are configured at least one signal in described at least two signals is sent to described summation component and another signal at least in described at least two signals is sent to the described poor parts of asking.
11. system as claimed in claim 10, wherein, described RF label position determining unit further comprises:
The second shunt parts, its be connected to the second antenna in described at least two antennas and be configured to send with from least two corresponding signals of the input signal of described the second antenna reception, described the second shunt parts are connected to described summation component and describedly ask poor parts, and are configured at least one signal in described at least two signals is sent to described summation component and another signal at least in described at least two signals is sent to the described poor parts of asking.
12. system as claimed in claim 5, wherein, described phase comparator is configured to: in response to the first signal of determining to receive from described summation component with from the described phase differential transformation of asking between the secondary signal that poor parts receive, generate described phase detect signal.
13. system as claimed in claim 12, wherein, it is from extremely spending in the preset distance of phase differential with respect to 180 in the preset distance poor with respect to zero phase that described phase differential changes.
14. the system as claimed in claim 1, wherein, described at least two antennas are positioned at the delivery vehicle that neighboringly passes through the RF label.
15. the method for a definite RF label position, described method comprises:
From first antenna reception the first response signal;
From second antenna reception the second response signal;
Based on described the first response signal and the second response signal and generate and signal;
Based on the difference of described the first response signal and the second response signal and generate difference signal; With
In response to determine to generate and signal change with phase differential between the difference signal that generates, generation position sensing signal.
16. method as claimed in claim 15, wherein, described generation position sensing signal comprises: generate the position sensing signal in response to determining from being converted in the preset distance with respect to 180 degree phase differential in the preset distance poor with respect to zero phase.
17. storer or a computer-readable medium of storing instruction, described instruction make described processor carry out method as claimed in claim 15 when being carried out by processor.
18. a position determination unit is used for based on the response signal that receives from the phased antenna combination and the position of definite equipment, described position determination unit comprises:
Phase comparator, it is configured to: ask the phase differential between poor parts signal to change and generation position sensing signal based on the first summation component signal and first;
Summation component, it is connected to described phase comparator, and be configured to: in response to receiving from the first response signal of the first antenna in described phased antenna combination with from the second response signal of the second antenna in described phased antenna combination, and generate described the first summation component signal; With
Ask poor parts, it is connected to described phase comparator, and is configured to: ask poor parts signal in response to receiving from the first response signal of described the first antenna and generating described first from the second response signal of described the second antenna.
19. position determination unit as claimed in claim 18 further comprises:
At least one shunt parts, it is connected between described summation component and at least one described the first antenna or is connected between described summation component and at least one described the second antenna, and is connected and describedly asks between poor parts and at least one described the first antenna or be connected described asking between poor parts and at least one described the second antenna.
20. position determination unit as claimed in claim 18 further comprises:
Signal generator, it is connected to described summation component, and is configured to generate interrogating signal in order to send to described phased antenna combination.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/IB2010/000508 WO2011110882A1 (en) | 2010-03-10 | 2010-03-10 | Rf tag reader for accurate position determination |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103154763A true CN103154763A (en) | 2013-06-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010800667566A Pending CN103154763A (en) | 2010-03-10 | 2010-03-10 | Rf tag reader for accurate position determination |
Country Status (7)
| Country | Link |
|---|---|
| EP (1) | EP2545390A4 (en) |
| JP (1) | JP2013521737A (en) |
| KR (1) | KR101398644B1 (en) |
| CN (1) | CN103154763A (en) |
| BR (1) | BR112012022771A2 (en) |
| CA (1) | CA2792723C (en) |
| WO (1) | WO2011110882A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108333559A (en) * | 2018-01-11 | 2018-07-27 | 深圳市远望谷信息技术股份有限公司 | A kind of method and device of the object space of accurate determining orbiting |
| CN110958968A (en) * | 2017-07-14 | 2020-04-03 | 西门子交通有限公司 | Method for determining a direction of travel and/or a position, route-side device and device for a vehicle |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2988064B1 (en) * | 2012-03-15 | 2014-04-18 | Alstom Transport Sa | ONBOARD SYSTEM FOR GENERATING A LOCALIZATION SIGNAL OF A RAILWAY VEHICLE |
| DE102012214724A1 (en) * | 2012-08-20 | 2014-02-20 | Siemens Aktiengesellschaft | Method for increasing the position accuracy of a moving object |
| DE102014218654A1 (en) * | 2014-09-17 | 2016-03-17 | Siemens Aktiengesellschaft | Method and device for detecting an unchanged position of an at least partially disabled vehicle |
| JP6426496B2 (en) * | 2015-02-20 | 2018-11-21 | 株式会社東芝 | Wireless device and antenna device |
| KR102513379B1 (en) * | 2015-12-18 | 2023-03-22 | 엘지전자 주식회사 | Communication device and electronic device including the same |
| DE102016213240A1 (en) | 2016-02-12 | 2017-08-17 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Device and method for determining the position of a transmitter relative to a detection area |
| CN107561491B (en) * | 2017-08-23 | 2020-08-11 | 电子科技大学 | Passive beacon device, system and measuring method for precisely positioning rail train |
| CN110261847B (en) * | 2019-06-19 | 2024-05-28 | 深圳数联天下智能科技有限公司 | Object position determining method and device |
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- 2010-03-10 JP JP2012556596A patent/JP2013521737A/en active Pending
- 2010-03-10 CA CA2792723A patent/CA2792723C/en not_active Expired - Fee Related
- 2010-03-10 CN CN2010800667566A patent/CN103154763A/en active Pending
- 2010-03-10 KR KR1020127026044A patent/KR101398644B1/en not_active IP Right Cessation
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110958968A (en) * | 2017-07-14 | 2020-04-03 | 西门子交通有限公司 | Method for determining a direction of travel and/or a position, route-side device and device for a vehicle |
| CN108333559A (en) * | 2018-01-11 | 2018-07-27 | 深圳市远望谷信息技术股份有限公司 | A kind of method and device of the object space of accurate determining orbiting |
| CN108333559B (en) * | 2018-01-11 | 2021-09-10 | 深圳市远望谷信息技术股份有限公司 | Method and device for accurately determining position of object running along track |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20120139776A (en) | 2012-12-27 |
| EP2545390A4 (en) | 2014-07-30 |
| CA2792723C (en) | 2017-02-21 |
| WO2011110882A1 (en) | 2011-09-15 |
| JP2013521737A (en) | 2013-06-10 |
| BR112012022771A2 (en) | 2016-07-19 |
| EP2545390A1 (en) | 2013-01-16 |
| CA2792723A1 (en) | 2011-09-15 |
| KR101398644B1 (en) | 2014-05-27 |
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