CN107122811A - The intelligent RFID reader and method positioned in real time for active radio frequency label - Google Patents
The intelligent RFID reader and method positioned in real time for active radio frequency label Download PDFInfo
- Publication number
- CN107122811A CN107122811A CN201710233534.2A CN201710233534A CN107122811A CN 107122811 A CN107122811 A CN 107122811A CN 201710233534 A CN201710233534 A CN 201710233534A CN 107122811 A CN107122811 A CN 107122811A
- Authority
- CN
- China
- Prior art keywords
- radio frequency
- radiofrequency signal
- active radio
- signal
- real time
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/02—Services making use of location information
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W64/00—Locating users or terminals or network equipment for network management purposes, e.g. mobility management
Abstract
The present invention relates to the intelligent RFID reader positioned in real time for active radio frequency label and method, the intelligent RFID reader includes aerial array, Transmit Receive Unit and signal processing circuit.Antenna element in aerial array corresponds the RF receiving and transmission module being connected in Transmit Receive Unit, and RF receiving and transmission module can carry out radiofrequency signal transmitting-receiving operation simultaneously, and received signal strength is measured；The radiofrequency signal that signal processing circuit is received to multi-channel rf transceiver module is handled, the same radiofrequency signal that merger different antennae unit is received, according to the physics for the antenna element for receiving signal direction, antenna performance and signal intensity, the direction of active radio frequency label and its approximate distance with intelligent RFID reader are obtained；Intelligent RFID reader also includes the functional modules such as communication, positioning, supports multiple target tracking positioning, mitigates the workload of system building, reduce cost, improve location efficiency and accuracy, it is ensured that system reliability.
Description
Technical field
The present invention relates to communication technical field, more particularly to the technical field that active radio frequency label is positioned in real time, it is specifically
Refer to a kind of intelligent RFID reader positioned in real time for active radio frequency label and method.
Background technology
RFID (Radio frequency identification devices, radio frequency identification) technology, is a kind of
The non-contact automatic identification technology realized using radio communication, RFID tag is had big small volume, capacity, long lifespan, can weighed
The features such as using again, can support fast reading and writing, non-visual recognition, mobile identification, multi-targets recognition, positioning and long-term follow pipe
Reason, RFID technique is combined with technologies such as internet, communications, and item tracking and information sharing in global range can be achieved.At present
Existing multiple countries actively throw oneself into the exploration that RFID technique is applied to the fields such as logistics, transport, urban transportation, active radio frequency
Label, which is realized to be accurately positioned, certainly will turn into following development trend.
RFID positioning is phased array wireless location method usually using two kinds of technologies, one kind, and this method efficiency is low, a large amount of targets
When, effect is poor；It is another, it is time-of-flight method, this method needs to arrange multiple read write lines, and higher want is equipped with to installation position
Ask, install inconvenient, simultaneity factor needs to carry out time synchronized to ensure the accuracy of judged result.It is limited to effect, efficiency
And complicated installation configuration requirement and cause the increase of artificial error probability, both technologies are positioned in real time in active radio frequency label
Accuracy and reliability are difficult to ensure that in, and not accurate enough, less reliable alignment system is in most of practical application
Lost in scape and use meaning.
The content of the invention
The purpose of the present invention is the shortcoming for overcoming above-mentioned prior art, by multichannel independent signal reception processing unit and many
Sensing fusion location algorithm there is provided it is a kind of can to single radiofrequency signal realize quickly position be used for active radio frequency label it is real-time
The intelligent RFID reader and method of positioning.
The intelligent RFID reader positioned in real time for active radio frequency label and method in the present invention is specific as follows：
This is used for the intelligent RFID reader that active radio frequency label is positioned in real time, and it is mainly characterized by, described intelligence
RFID reader includes aerial array, Transmit Receive Unit and signal processing circuit, described Transmit Receive Unit with it is described
Multiple antenna elements in aerial array are connected, to carry out the transmitting-receiving of radiofrequency signal, and obtain described antenna element to receive
The signal intensity of the radiofrequency signal arrived；Described Transmit Receive Unit is also connected with described signal processing circuit, and described
The radiofrequency signal that is obtained of Transmit Receive Unit and the corresponding signal intensity of the radiofrequency signal be sent at described signal
Circuit is managed, calculating positioning is carried out for described signal processing circuit, the reality for the active radio frequency label for sending the radiofrequency signal is obtained
When position.
It is preferred that described antenna element is directional aerial, described Transmit Receive Unit includes multiple radio-frequency receiving-transmittings
Can be simultaneously between module, and the corresponding Transmit Receive Unit being connected with described in one of each directional aerial, each RF receiving and transmission module
Independent transmitting-receiving.
It is preferred that the radiofrequency signal that active radio frequency label is sent includes the id information of the active radio frequency label.
It is preferred that described intelligent RFID reader also includes communication function module and localization function module, and it is described
Communication function module and described localization function module are also respectively connecting to described signal processing circuit, to realize positioning work(
Energy and communication function.
It is above-described to realize that active radio frequency label is real for the intelligent RFID reader that active radio frequency label is positioned in real time
Shi Dingwei method, it is mainly characterized by, and described method comprises the following steps：
(1) it is electric on the intelligent RFID reader described in；
(2) aerial array described in obtains the radio frequency letter that described active radio frequency label is sent by described antenna element
Number, and the radiofrequency signal is sent to described Transmit Receive Unit；
(3) Transmit Receive Unit described in receives the radiofrequency signal that each antenna element is received, and obtains each antenna
The corresponding signal intensity of radiofrequency signal that unit is received, and radiofrequency signal and the corresponding signal intensity of the radiofrequency signal are sent out
Deliver to described signal processing circuit；
(4) signal processing circuit described in receives the radiofrequency signal and the corresponding signal intensity of the radiofrequency signal, and to it
Handled, so that it is determined that the real time position of described active radio frequency label.
It is preferred that described antenna element is directional aerial, described Transmit Receive Unit includes multiple radio-frequency receiving-transmittings
Module, and each directional aerial corresponds to the Transmit Receive Unit being connected with described in one, described step (2) is specially：
Described directional aerial receives the radiofrequency signal that described active radio frequency label is sent, and the radiofrequency signal is sent
To the RF receiving and transmission module of directional aerial correspondence connection.
More preferably, described step (3) is specially：
Described RF receiving and transmission module obtains the corresponding signal intensity of described radiofrequency signal that it is received, and described
Each RF receiving and transmission module in Transmit Receive Unit sends radiofrequency signal and the corresponding signal intensity of the radiofrequency signal
To described signal processing circuit, it is further processed for described signal processing circuit.
It is preferred that described step (4) is specially：
Described signal processing circuit receives radiofrequency signal and its signal intensity, and the letter by poll or concurrent mode
Number process circuit is handled described radiofrequency signal and its signal intensity by multi-sensor fusion location algorithm, so as to obtain
The real time position of described active radio frequency label.
More preferably, radiofrequency signal includes launching the id information of the active radio frequency label of the radiofrequency signal, described antenna
Unit is directional aerial, and described signal processing circuit by multi-sensor fusion location algorithm to described radiofrequency signal and its
Signal intensity carries out processing so as to which the real time position for obtaining described active radio frequency label is specially：
(4.1) the id information merger that the radiofrequency signal that the signal processing circuit described in is received according to it includes belongs to same
The radiofrequency signal of one active radio frequency label；
(4.2) signal intensity of the radiofrequency signal with same id information temporally to receiving is spliced, shape
Into the time series based on signal intensity；
(4.3) after-treatment is carried out to time series, described after-treatment includes lacking described time series
Damage is filled up and smoothly；
(4.4) directional aerial spatial gain is combined, the real time position of described active radio frequency label is obtained.
Employ the present invention is used for intelligent RFID reader and the method that active radio frequency label is positioned in real time, has in realization
During the positioning of source RF tag, due to its scheme relative to multi reader/writer distributing installation, read write line quantity is reduced, therefore greatly
The big difficulty for reducing mounting arrangements, cost is also reduced, and the positioning of label can also be realized by single radio frequency signal, is believed
The utilization rate of source signal is high, locating speed is fast, moreover it is possible to while positioning multiple active radio frequency labels, it is adaptable to power consumption requirements it is higher or
The more occasion of person's number of labels；The present invention can realize one for the intelligent RFID reader that active radio frequency label is positioned in real time
Bodyization is designed, and is reduced installation requirement, is reduced artificial error probability, improve accuracy and reliability, have wide range of applications.
Brief description of the drawings
Fig. 1 is the hardware configuration for being used for the intelligent RFID reader that active radio frequency label the is positioned in real time connection in the present invention
Schematic diagram.
Fig. 2 is that a kind of of the intelligent RFID reader that active radio frequency label is positioned in real time that be used in the present invention is embodied
Schematic appearance in example.
Fig. 3 is that a kind of of the intelligent RFID reader that active radio frequency label is positioned in real time that be used in the present invention is embodied
Antenna layout drawing in example.
Fig. 4 be in the present invention be used for the intelligent RFID reader that active radio frequency label is positioned in real time the first is specific real
Apply the antenna arrangement schematic diagram in example.
Fig. 5 is second that is used for the intelligent RFID reader that active radio frequency label is positioned in real time specific reality in the present invention
Apply the antenna arrangement schematic diagram in example.
Embodiment
In order to more clearly describe the technology contents of the present invention, carried out with reference to specific embodiment further
Description.
Refer to shown in Fig. 1, it is of the invention to be used for intelligent RFID reader that active radio frequency label positions in real time by antenna
The part such as array, Transmit Receive Unit, signal processing circuit and other functional modules is constituted, described Transmit Receive Unit and institute
The signal processing circuit stated is connected, and described aerial array includes multiple antenna elements, and described antenna element with it is described
Transmit Receive Unit be connected, the radiofrequency signal of described active radio frequency label transmitting, described radio-frequency receiving-transmitting for receiving
Unit also obtains the signal intensity of its radiofrequency signal received, and by above-mentioned radio-frequency information and the corresponding signal of the radio-frequency information
Intensity sends described signal processing circuit to, is handled by signal processing circuit, so as to obtain described active radio frequency mark
The real time position of label.
This may also include positioning function mould as needed for the intelligent RFID reader that active radio frequency label is positioned in real time
Block and communication function module etc., the communication for being positioned and with the external world.Described positions in real time for active radio frequency label
Other modules for including of intelligent RFID reader be also connected with described signal processing circuit, and described be used to have
The intelligent RFID reader that source RF tag is positioned in real time is presented with complete machine in the form of split or one.
Refer to shown in Fig. 2,3,4, described aerial array is made up of multiple antenna elements, and described antenna element is fixed
To antenna.
Described Transmit Receive Unit includes RF receiving and transmission module, and described RF receiving and transmission module and described antenna list
Member is corresponded, and has several antenna elements just to have several RF receiving and transmission modules, for ensureing to receive on each antenna element
Radiofrequency signal can be processed, and in a particular embodiment, there are the feelings that RF receiving and transmission module number is more than antenna element
Condition, can be by directly increasing antenna when being required with realizing to user to the positioning precision of RFID tag in an antenna array
Unit, obtains higher RFID tag positioning precision.In this specific embodiment, each antenna element is all to that should have radio frequency receipts
Module is sent out, the number of RF receiving and transmission module is more than or equal to the number of antenna element.In fact, the radio-frequency receiving-transmitting mould in a device
The number of block can be configured as needed.
Described can obtain each antenna list in real time for the intelligent RFID reader that active radio frequency label is positioned in real time
The radiofrequency signal received in member, so that the id information for the active radio frequency label for launching the radiofrequency signal in radiofrequency signal is obtained,
And the signal intensity of the radiofrequency signal received, so that described signal processing circuit is handled it, obtain described
Active radio frequency label real time position.
Described aerial array should be believed by using the radio frequency for being set to match single or multi-frequency according to actual needs
Number antenna element or the positioning and monitoring of multiple frequency tags are realized using the antenna element of multigroup different frequency simultaneously, and
The modulation system of described antenna element is not limited；Each RF receiving and transmission module can be carried out simultaneously in described Transmit Receive Unit
Independent read-write, it is corresponding that each RF receiving and transmission module individually can transmit the radiofrequency signal come progress to its corresponding antenna element
Processing, the reception of radiofrequency signal can be carried out simultaneously or operation is sent, and the signal intensity of the radiofrequency signal to receiving is carried out
Measurement.
In a particular embodiment, the radio frequency that described signal processing circuit is received to described multi-channel rf transceiver module
Signal is handled, the radiofrequency signal for coming from same active radio frequency label that the different antenna element of merger is received, and root
According to the physics for the antenna element for receiving the radiofrequency signal towards, antenna performance and the signal intensity of the radiofrequency signal, calculating and
The direction of the described active radio frequency label of positioning and approximate distance.
The intelligent RFID reader that positions in real time of active radio frequency label that is used for of the present invention is in the form of complete machine or one
It is existing, when it is in separate form, each component of the intelligent RFID reader (including aerial array, Transmit Receive Unit, signal
Process circuit and other functional modules) and connection is not completed, therefore realize that positioning includes following step to active radio frequency label in real time
Suddenly：
(1) if the device in the invention is in split state, first described is positioned in real time for active radio frequency label
Each component of intelligent RFID reader be connected with cable, then to electric on the device connected；Or the device in the invention
Presented in the form of overall, without connection, then directly to electric on the intelligent RFID reader；
(2) antenna element described in starts to communicate with extraneous active radio frequency label, receives active radio frequency label transmitting
Radiofrequency signal；
(3) radiofrequency signal that the antenna element described in is received (includes but is not limited to the ID letters of active radio frequency label
Breath) it is transferred to the described RF receiving and transmission module of its correspondence connection；
(4) RF receiving and transmission module described in sends radiofrequency signal and its signal intensity to signal processing circuit；
(5) signal processing circuit described in receives radiofrequency signal and its signal intensity that RF receiving and transmission module is sent；
(6) id information number of the signal processing circuit in described radiofrequency signal described in is in different antenna elements
The radiofrequency signal for coming from same active radio frequency label received carries out merger and information matches, and according to localization method meter
Calculate, determine active radio frequency label real time position.
When localization method of the use multi-sensor fusion location algorithm as the intelligent RFID reader, pass through the same time
Different antennae unit receives the difference of the signal intensity of the radiofrequency signal of same active radio frequency label transmitting, by each radiofrequency signal
Signal intensity difference determines direction, and determines distance by the absolute value of signal intensity, and described signal processing circuit by passing more
Sense fusion location algorithm obtains concretely comprising the following steps for described active radio frequency label real time position：
(1) signal processing circuit described in passes through poll or concurrent mode receive information；
(2) signal intensity of the radiofrequency signal of the same id information temporally received simultaneously to different antennae is spliced, shape
Into the time series based on signal receiving strength；
(3) filled up using defect, the means such as smooth carry out after-treatment to time series；
(4) spatial gain of directional aerial is combined, realization is accurately positioned and trajectory track；
(5) storage or transmission process result, if this is used for the intelligent RFID reader that active radio frequency label is positioned in real time
Communication function module is provided with, is pushed the position result of described active radio frequency label or defeated by wired or wireless mode
Go out to equipment such as server, mobile phones；
In above-mentioned steps (5), storage and output to result, its output format include but is not limited to position letter
Breath, trace information or raw information etc..
Employ the present invention is used for intelligent RFID reader and the method that active radio frequency label is positioned in real time, has in realization
During the positioning of source RF tag, due to its scheme relative to multi reader/writer distributing installation, read write line quantity is reduced, therefore greatly
The big difficulty for reducing mounting arrangements, cost is also reduced, and the positioning of label can also be realized by single radio frequency signal, is believed
The utilization rate of source signal is high, locating speed is fast, moreover it is possible to while positioning multiple active radio frequency labels, it is adaptable to power consumption requirements it is higher or
The more occasion of person's number of labels；The present invention can realize one for the intelligent RFID reader that active radio frequency label is positioned in real time
Bodyization is designed, and is reduced installation requirement, is reduced artificial error probability, improve accuracy and reliability, have wide range of applications.
In this description, the present invention is described with reference to its specific embodiment.But it is clear that can still make
Various modifications and alterations are without departing from the spirit and scope of the present invention.Therefore, specification and drawings are considered as illustrative
And it is nonrestrictive.
Claims (9)
1. a kind of intelligent RFID reader positioned in real time for active radio frequency label, it is characterised in that described intelligent RFID
Read write line includes aerial array, Transmit Receive Unit and signal processing circuit, described Transmit Receive Unit and described antenna
Multiple antenna elements in array are connected, and to carry out the transmitting-receiving of radiofrequency signal, and obtain what described antenna element was received
The signal intensity of radiofrequency signal；Described Transmit Receive Unit is also connected with described signal processing circuit, and described penetrates
The radiofrequency signal and the corresponding signal intensity of the radiofrequency signal that frequency Transmit-Receive Unit is obtained are sent to described signal transacting electricity
Road, calculating positioning is carried out for described signal processing circuit, obtains the real-time position for the active radio frequency label for sending the radiofrequency signal
Put.
2. the intelligent RFID reader according to claim 1 positioned in real time for active radio frequency label, it is characterised in that
Described antenna element is directional aerial, and described Transmit Receive Unit includes multiple RF receiving and transmission modules, and each orientation
Antenna is corresponded to can independent transmitting-receiving simultaneously between the Transmit Receive Unit being connected with described in one, each RF receiving and transmission module.
3. the intelligent RFID reader according to claim 1 positioned in real time for active radio frequency label, it is characterised in that
The radiofrequency signal that active radio frequency label is sent includes the id information of the active radio frequency label.
4. the intelligent RFID reader according to claim 1 positioned in real time for active radio frequency label, it is characterised in that
Described intelligent RFID reader also includes communication function module and localization function module, and described communication function module and institute
The localization function module stated also is respectively connecting to described signal processing circuit, to realize positioning function and communication function.
5. a kind of realize active penetrate for the intelligent RFID reader that active radio frequency label is positioned in real time as claimed in claim 1
The method that frequency marking label are positioned in real time, it is characterised in that described method comprises the following steps：
(1) it is electric on the intelligent RFID reader described in；
(2) aerial array described in obtains the radiofrequency signal that described active radio frequency label is sent by described antenna element,
And send the radiofrequency signal to described Transmit Receive Unit；
(3) Transmit Receive Unit described in receives the radiofrequency signal that each antenna element is received, and obtains each antenna element
The corresponding signal intensity of radiofrequency signal received, and by radiofrequency signal and the corresponding signal intensity of the radiofrequency signal send to
Described signal processing circuit；
(4) signal processing circuit described in receives the radiofrequency signal and the corresponding signal intensity of the radiofrequency signal, and it is carried out
Processing, so that it is determined that the real time position of described active radio frequency label.
6. according to claim 5 realize active radio frequency for the intelligent RFID reader that active radio frequency label is positioned in real time
The method that label is positioned in real time, it is characterised in that described antenna element is bag in directional aerial, described Transmit Receive Unit
Multiple RF receiving and transmission modules are included, and each directional aerial corresponds to the Transmit Receive Unit being connected with described in one, described step
(2) it is specially：
Described directional aerial receives the radiofrequency signal that described active radio frequency label is sent, and the radiofrequency signal is sent to this
The RF receiving and transmission module of directional aerial correspondence connection.
7. according to claim 6 realize active radio frequency for the intelligent RFID reader that active radio frequency label is positioned in real time
The method that label is positioned in real time, it is characterised in that described step (3) is specially：
Described RF receiving and transmission module obtains the corresponding signal intensity of described radiofrequency signal that it is received, and described radio frequency
Each RF receiving and transmission module in Transmit-Receive Unit sends radiofrequency signal and the corresponding signal intensity of the radiofrequency signal to institute
The signal processing circuit stated, is further processed for described signal processing circuit.
8. intelligent RFID reader according to claim 5 realizes the method that active radio frequency label is positioned in real time, its feature
It is, described step (4) is specially：
Described signal processing circuit is received at radiofrequency signal and its signal intensity, and the signal by poll or concurrent mode
Reason circuit is handled described radiofrequency signal and its signal intensity by multi-sensor fusion location algorithm, so as to obtain described
Active radio frequency label real time position.
9. according to claim 8 realize active radio frequency for the intelligent RFID reader that active radio frequency label is positioned in real time
The method that label is positioned in real time, it is characterised in that radiofrequency signal includes launching the ID of the active radio frequency label of the radiofrequency signal
Information, described antenna element is directional aerial, and described signal processing circuit by multi-sensor fusion location algorithm to institute
The radiofrequency signal and its signal intensity stated carry out processing so as to which the real time position for obtaining described active radio frequency label is specially：
(4.1) the id information merger that the radiofrequency signal that the signal processing circuit described in is received according to it includes, which belongs to same, to be had
The radiofrequency signal of source RF tag；
(4.2) signal intensity of the radiofrequency signal with same id information temporally to receiving is spliced, and forms base
In the time series of signal intensity；
(4.3) after-treatment is carried out to time series, described after-treatment includes filling out described time series progress defect
Mend and smooth；
(4.4) directional aerial spatial gain is combined, the real time position of described active radio frequency label is obtained.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710233534.2A CN107122811A (en) | 2017-04-11 | 2017-04-11 | The intelligent RFID reader and method positioned in real time for active radio frequency label |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710233534.2A CN107122811A (en) | 2017-04-11 | 2017-04-11 | The intelligent RFID reader and method positioned in real time for active radio frequency label |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107122811A true CN107122811A (en) | 2017-09-01 |
Family
ID=59726273
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710233534.2A Pending CN107122811A (en) | 2017-04-11 | 2017-04-11 | The intelligent RFID reader and method positioned in real time for active radio frequency label |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107122811A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108256599A (en) * | 2018-01-04 | 2018-07-06 | 南京信息工程大学 | A kind of home furnishings intelligent searcher |
| CN109117903A (en) * | 2018-07-23 | 2019-01-01 | 深圳市欧辰技术有限公司 | A kind of positioning device |
| CN110298620A (en) * | 2019-07-05 | 2019-10-01 | 上海中通吉网络技术有限公司 | Cargo managing method and system, smart machine, background management system |
| CN110580749A (en) * | 2019-10-10 | 2019-12-17 | 张育腾 | Timing and pigeonry management equipment for carrier pigeon competition |
| CN111640306A (en) * | 2020-06-28 | 2020-09-08 | 南京敏智达科技有限公司 | Self-adaptive radio frequency detection and positioning system and method for traffic violation identification |
| CN111736182A (en) * | 2020-07-28 | 2020-10-02 | 南京华苏科技有限公司 | Multi-path adjustable BDS/GPS time service device and time service method |
| CN112802357A (en) * | 2020-12-21 | 2021-05-14 | 航天信息股份有限公司 | Vehicle identification and positioning device based on RFID |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101770598A (en) * | 2008-12-30 | 2010-07-07 | 刘俊勇 | Active frequency identification label, system and identification method |
| CN102236804A (en) * | 2010-04-23 | 2011-11-09 | 北京烽火联拓科技有限公司 | Reader-writer |
| CN103630875A (en) * | 2013-11-21 | 2014-03-12 | 天津中兴智联科技有限公司 | Radio frequency identifying and positioning method and device |
| CN103954929A (en) * | 2014-05-21 | 2014-07-30 | 清华大学 | Radio frequency tag locating method and system |
| CN104850874A (en) * | 2015-04-10 | 2015-08-19 | 上海十贝电子科技有限公司 | Method and system for accurately positioning single vector reader-writer |
-
2017
- 2017-04-11 CN CN201710233534.2A patent/CN107122811A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101770598A (en) * | 2008-12-30 | 2010-07-07 | 刘俊勇 | Active frequency identification label, system and identification method |
| CN102236804A (en) * | 2010-04-23 | 2011-11-09 | 北京烽火联拓科技有限公司 | Reader-writer |
| CN103630875A (en) * | 2013-11-21 | 2014-03-12 | 天津中兴智联科技有限公司 | Radio frequency identifying and positioning method and device |
| CN103954929A (en) * | 2014-05-21 | 2014-07-30 | 清华大学 | Radio frequency tag locating method and system |
| CN104850874A (en) * | 2015-04-10 | 2015-08-19 | 上海十贝电子科技有限公司 | Method and system for accurately positioning single vector reader-writer |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108256599A (en) * | 2018-01-04 | 2018-07-06 | 南京信息工程大学 | A kind of home furnishings intelligent searcher |
| CN109117903A (en) * | 2018-07-23 | 2019-01-01 | 深圳市欧辰技术有限公司 | A kind of positioning device |
| CN110298620A (en) * | 2019-07-05 | 2019-10-01 | 上海中通吉网络技术有限公司 | Cargo managing method and system, smart machine, background management system |
| CN110580749A (en) * | 2019-10-10 | 2019-12-17 | 张育腾 | Timing and pigeonry management equipment for carrier pigeon competition |
| CN111640306A (en) * | 2020-06-28 | 2020-09-08 | 南京敏智达科技有限公司 | Self-adaptive radio frequency detection and positioning system and method for traffic violation identification |
| CN111736182A (en) * | 2020-07-28 | 2020-10-02 | 南京华苏科技有限公司 | Multi-path adjustable BDS/GPS time service device and time service method |
| CN112802357A (en) * | 2020-12-21 | 2021-05-14 | 航天信息股份有限公司 | Vehicle identification and positioning device based on RFID |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107122811A (en) | The intelligent RFID reader and method positioned in real time for active radio frequency label | |
| CN102043151B (en) | Mobile terminal and method for positioning based on radio frequency identification | |
| CN101089654B (en) | RFID radio positioning method based on phase difference ranging | |
| CN206270992U (en) | Airport aviation luggage track and localization safety protection device | |
| CN101604021B (en) | Location method and device of wireless radio frequency identification system | |
| CN103984971A (en) | Wireless positioning method and system based on antenna array phase difference direction-finding radio frequency identification (RFID) | |
| CN101782652A (en) | Indoor positioning system based on RFID technology | |
| CN107356903A (en) | Passive RFID localization method and device based on phase difference measurement | |
| CN101975938A (en) | Five-dimensional positioning method and system based on radio-frequency signals | |
| CN104105063A (en) | Radio frequency identification device (RFID) and Bluetooth network based monitoring positioning system and method | |
| CN101598792A (en) | High-precision three-dimensional positioning device in small space region based on radio-frequency (RF) identification | |
| CN109212474B (en) | Underground positioning method based on EIEL electronic tag | |
| CN102682257A (en) | Object location system based on RFID (Radio Frequency Identification Device) and WIFI (Wireless Fidelity) technologies | |
| CN105303345A (en) | RFID based fork truck anti-collision system and method | |
| CN103954929A (en) | Radio frequency tag locating method and system | |
| CN104200351A (en) | Logistics management system and positioning method based on RFID rapid positioning | |
| CN102043149A (en) | Moving locus detection system | |
| CN207731277U (en) | Position-recognizing system based on RFID technique | |
| CN109348465A (en) | Internet localization method based on Internet of Things perception | |
| CN104685370A (en) | System and method for locating wireless nodes | |
| CN104076323A (en) | RFID positioning method based on simulation tag | |
| CN103033793A (en) | Positioning method and positioning system | |
| US8633803B2 (en) | Apparatus and method for locating RFID tag | |
| CN104166825A (en) | RFID-based document accurate positioning method | |
| CN201654239U (en) | Indoor positioning device based on RFID (Radio Frequency Identification Technology) |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170901 |
|
| RJ01 | Rejection of invention patent application after publication |