CN104360365B - Auxiliary positioning method based on radio frequency recognition - Google Patents
Auxiliary positioning method based on radio frequency recognition Download PDFInfo
- Publication number
- CN104360365B CN104360365B CN201410680811.0A CN201410680811A CN104360365B CN 104360365 B CN104360365 B CN 104360365B CN 201410680811 A CN201410680811 A CN 201410680811A CN 104360365 B CN104360365 B CN 104360365B
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- location data
- rfid tag
- auxiliary positioning
- mobile terminal
- radio frequency
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- 238000000034 method Methods 0.000 title claims abstract description 14
- 238000005516 engineering process Methods 0.000 description 8
- 230000004913 activation Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000002123 temporal effect Effects 0.000 description 2
- 230000007175 bidirectional communication Effects 0.000 description 1
- 230000030570 cellular localization Effects 0.000 description 1
- 238000012217 deletion Methods 0.000 description 1
- 230000037430 deletion Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000005672 electromagnetic field Effects 0.000 description 1
- 238000009432 framing Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 230000004807 localization Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
Classifications
-
- 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
- G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
- G01S19/38—Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system
- G01S19/39—Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system the satellite radio beacon positioning system transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
- G01S19/42—Determining position
- G01S19/45—Determining position by combining measurements of signals from the satellite radio beacon positioning system with a supplementary measurement
- G01S19/46—Determining position by combining measurements of signals from the satellite radio beacon positioning system with a supplementary measurement the supplementary measurement being of a radio-wave signal type
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- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Position Fixing By Use Of Radio Waves (AREA)
Abstract
The invention discloses an auxiliary positioning method based on radio frequency recognition. The auxiliary positioning method includes the following steps that a radio frequency recognition auxiliary positioning receiver of a mobile terminal is connected with a radio frequency recognition tag in a covering range of the radio frequency recognition auxiliary positioning receiver, and positioning data including latest updating time information of the data are stored in the radio frequency recognition tag; when latest updating time of positioning data of the radio frequency recognition auxiliary positioning receiver of the mobile terminal is anterior to latest updating time of the positioning data of the radio frequency recognition tag, the positioning data stored in the radio frequency recognition tag are transmitted to the radio frequency recognition auxiliary positioning receiver of the mobile terminal; when the latest updating time of the positioning data of the radio frequency recognition tag is anterior to the latest updating time of the positioning data of the radio frequency recognition auxiliary positioning receiver of the mobile terminal, the positioning data stored in the radio frequency recognition auxiliary positioning receiver of the mobile terminal are transmitted to the radio frequency recognition tag. According to the auxiliary positioning method, the positioning speed and accuracy of satellite navigation can be improved.
Description
Technical field
The present invention relates to a kind of assisted location method, particularly a kind of auxiliary positioning side Ji Yu RF identification (rfid)
Method.
Background technology
With the continuous development of wireless technology, location information service is more and more paid attention to.And as positional information
The representative of service, global positioning system (global positioning system, gps) has been widely used for automobile navigation, work
The many such as journey measurement, ocean rescue, aircraft navigation, air remote sensing fields.Gps system is by space segment, ground control system portion
Divide and customer equipment part composition.System is by the receiver institute being carried by 24 orbiters, ground control system and user
The network of composition is to realization of goal positioning and navigation feature.Being limited in that of gps system positions between target and orbiter
Sighting distance (line of sight, los) need to be kept.When client is in interior or building, wireless signal can not be with client
When equipment directly transmits, positioning is unable to reach the gratifying degree of accuracy, or even loses efficacy.Epson (epson) company once tasted
The increase equipment indoors that pinged realizes gps indoor positioning, but the cost of system is sufficiently expensive, and positioning time is left in the lo second
The right side, more than 5 meters, positioning precision and real-time are still unsatisfactory for error.In order to improve positional accuracy indoors, existing
Have in technology and there are multiple aided positioning systems, solved gps alignment system positioning defect indoors.These auxiliary positioning systems
System includes gsm, cdma auxiliary positioning etc., especially it is possible to utilize REID (rfid).REID profit
With radiofrequency signal, carry out contactless bidirectional communication data exchange by alternating magnetic field or electromagnetic field couples and realize information transmission,
And pass through transmitted information reach identification and positioning purpose.Generally tens meters of its operating distance, such as plus special sky
Line (as eight mesh antennas), then operating distance is up to 300 meters.The anti-collision algorithm of rfid system is so that read write line can be in the short time
The substantial amounts of label of interior identification, provides possibility for realizing positioning in real time.Increasingly mature with IC design technology, rfid marks
Sign price increasingly cheap, greatly reduce the cost of rfid indoor locating system.Except above technology, also cellular localization, thunder
Reach the technology such as positioning, light track and localization and the positioning based on graphical analysis.In numerous indoor positioning technologies, rfid has non-connecing
Touch, the advantages of non line of sight, low cost, positioning precision are high, therefore become preferred auxiliary indoor positioning technologies.But, even if
It is the aided positioning system based on rfid, also still there is locating speed, accuracy shortcoming, how to be lifted further and defend
The locating speed of star navigator fix and accuracy become the problem of urgent need to resolve.In order to solve this problem, this paper presents
A kind of assisted location method based on RF identification, can efficiently solve the problems referred to above.
Content of the invention
The technical problem to be solved is: how to lift locating speed and the accuracy of satellite navigation positioning.For
This, the present invention propose a kind of assisted location method based on RF identification, can fully solve due to prior art restriction and
One or more problems that defect leads to.
Additional advantages of the present invention, purpose and characteristic, a part will be elucidated in the following description, and another portion
Point for those of ordinary skill in the art by will be apparent from or from the enforcement of the present invention to the investigation of description below
Acquire.Be can achieve by the structure particularly pointing out in the specification and claims of word and accompanying drawing and obtain the present invention
Objects and advantages.
The invention provides a kind of assisted location method based on RF identification, comprise the following steps:
Mobile terminal determines with the presence or absence of RFID tag in the coverage of its RF identification auxiliary positioning receiver,
And, if there is RFID tag in the coverage of the RF identification auxiliary positioning receiver of mobile terminal, with this
RFID tag is set up and is connected；
Described RFID tag is placed in the region that satellite navigation signals cannot cover, described RFID tag
Internal memory contains location data, also includes the recent renewal time information of data in described location data；
According to the data recent renewal time letter comprising in the described location data of storage in described RFID tag
The data recent renewal comprising in breath and the location data of storage in the RF identification auxiliary positioning receiver of mobile terminal
Temporal information, determines the more new state of described location data；
When mobile terminal radio frequency identifies the recent renewal time of the location data of auxiliary positioning receiver early than RF identification
During the recent renewal time of the location data of label, the location data storing is sent to mobile terminal penetrates in RFID tag
Frequency identification auxiliary positioning receiver；
When the recent renewal time of the location data of RFID tag connects early than mobile terminal radio frequency identification auxiliary positioning
During the recent renewal time of the location data of receipts machine, by the positioning of storage in the RF identification auxiliary positioning receiver of mobile terminal
Data is activation gives described RFID tag.
Preferably, also include the expired time of data in described location data.
Preferably, when the expired time in the location data of storage in described RFID tag indicates that this data is expired
When, this data is deleted.
Preferably, when mobile terminal radio frequency identifies recent renewal time and the radio frequency of the location data of auxiliary positioning receiver
When the recent renewal time of the location data of identification label is identical, disconnect the company between mobile terminal and this RFID tag
Connect.
Preferably, also provide clock signal, in response to each clock pulses of clock signal, described satellite navigation signals are
Gps signal.
Brief description
Fig. 1 is the structural representation according to the embodiment of the present invention based on the aided positioning system of RF identification.
Fig. 2 is the flow chart according to the embodiment of the present invention based on the assisted location method of RF identification.
Specific embodiment
With reference to the accompanying drawings the present invention is described more fully, the exemplary embodiment of the present invention is wherein described.
As shown in figure 1, according to embodiments of the present invention is included mobile terminal, is penetrated based on the aided positioning system of RF identification
Frequency identification tag, aeronautical satellite and assisted location service device.Described aeronautical satellite is, for example, gps satellite.Described RF identification
Label is placed in the region that satellite navigation signals cannot cover, and described RFID tag internal memory contains location data.Move
Comprise RF identification auxiliary positioning receiver in dynamic terminal, it is communicated with aeronautical satellite by antenna, by holding wire with
Assisted location service device is communicated, and described RF identification auxiliary positioning receiver receives from aeronautical satellite or secondary server
Signal, received signal includes framing signal.
If mobile terminal is found that RFID tag in the coverage of RF identification auxiliary positioning receiver,
This mobile terminal can be set up with this RFID tag and be connected.After mobile terminal with this RFID tag successful connection,
The recent renewal time of the location data of the location data relatively in RF identification auxiliary positioning receiver and RFID tag.
If the recent renewal time of the location data in RF identification auxiliary positioning receiver is early than the positioning number of RFID tag
According to recent renewal time, then RFID tag by its memory cell storage location data be sent to connected shifting
Dynamic terminal radio frequency identifies auxiliary positioning receiver.Accordingly, if during the recent renewal of the location data in RFID tag
Between identify early than mobile terminal radio frequency auxiliary positioning receiver the recent renewal time of location data when, then the penetrating of mobile terminal
The location data of storage in its memory cell is sent to described RFID tag by frequency identification auxiliary positioning receiver.
The RF identification auxiliary positioning receiver of mobile terminal includes antenna, satellite navigation receiver, controller and radio frequency
Recognition unit.Described rfid uint includes rfid transmissions module and RFID tag read module.Described satellite
Memory cell is included, for storing location data in navigation neceiver.Determining in described RF identification auxiliary positioning receiver
Position signal can be updated by aeronautical satellite or assisted location service device.Controller, for control by location data from
RF identification auxiliary positioning receiver is sent to RFID tag or is sent to RF identification auxiliary from RFID tag
Location receiver.
The flow chart that Fig. 2 shows the assisted location method based on RF identification according to embodiments of the present invention.
Mobile terminal determines with the presence or absence of RFID tag in the coverage of its RF identification auxiliary positioning receiver,
And, if there is RFID tag in the coverage of the RF identification auxiliary positioning receiver of mobile terminal, with this
RFID tag is set up and is connected.
Described RFID tag is placed in the region that satellite navigation signals cannot cover, described RFID tag
Internal memory contains location data, also includes recent renewal time information and the expired time of data in described location data.
When the expired time in the location data of storage in described RFID tag indicates that this data is expired, this is counted
According to deletion.
According to the data recent renewal time letter comprising in the described location data of storage in described RFID tag
The data recent renewal comprising in breath and the location data of storage in the RF identification auxiliary positioning receiver of mobile terminal
Temporal information, determines the more new state of described location data.
When mobile terminal radio frequency identifies the recent renewal time of the location data of auxiliary positioning receiver early than RF identification
During the recent renewal time of the location data of label, the location data storing is sent to mobile terminal penetrates in RFID tag
Frequency identification auxiliary positioning receiver.
When the recent renewal time of the location data of RFID tag connects early than mobile terminal radio frequency identification auxiliary positioning
During the recent renewal time of the location data of receipts machine, by the positioning of storage in the RF identification auxiliary positioning receiver of mobile terminal
Data is activation gives described RFID tag.
When mobile terminal radio frequency identifies recent renewal time and the radio frequency identification marking of the location data of auxiliary positioning receiver
When the recent renewal time of the location data signed is identical, disconnect the connection between mobile terminal and this RFID tag.
Above content is only presently preferred embodiments of the present invention, it will be understood by those skilled in the art that: according to this
Bright thought, these embodiments can be carried out in the case of the principle without departing from the present invention and objective multiple changes, modification,
Replace and modification, this specification content should not be construed as limitation of the present invention.
Claims (2)
1. a kind of assisted location method based on RF identification, comprises the following steps:
Mobile terminal determines with the presence or absence of RFID tag in the coverage of its RF identification auxiliary positioning receiver, and
And, if there is RFID tag in the coverage of the RF identification auxiliary positioning receiver of mobile terminal, penetrate with this
Frequency identification tag is set up and is connected；
Described RFID tag is placed in the region that satellite navigation signals cannot cover, described RFID tag internal memory
Contain location data, in described location data, also include the recent renewal time information of data；
According to the data recent renewal time information that comprises in the described location data of storage in described RFID tag with
And the data recent renewal time comprising in the location data of storage in the RF identification auxiliary positioning receiver of mobile terminal
Information, determines the more new state of described location data；
When mobile terminal radio frequency identifies the recent renewal time of the location data of auxiliary positioning receiver early than RFID tag
The recent renewal time of location data when, by the location data storing in RFID tag be sent to mobile terminal radio frequency know
Other auxiliary positioning receiver；
When the recent renewal time of the location data of RFID tag identifies auxiliary positioning receiver early than mobile terminal radio frequency
The recent renewal time of location data when, will in the RF identification auxiliary positioning receiver of mobile terminal storage location data
It is sent to described RFID tag；
When mobile terminal radio frequency identifies the recent renewal time of location data of auxiliary positioning receiver and RFID tag
When the recent renewal time of location data is identical, disconnect the connection between mobile terminal and this RFID tag；
The expired time of data is also included in described location data；When in the location data of storage in described RFID tag
Expired time when indicating that this data is expired, this data is deleted.
2. the assisted location method based on RF identification according to claim 1 is it is characterised in that described satellite navigation is believed
Number it is gps signal.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410680811.0A CN104360365B (en) | 2014-11-24 | 2014-11-24 | Auxiliary positioning method based on radio frequency recognition |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410680811.0A CN104360365B (en) | 2014-11-24 | 2014-11-24 | Auxiliary positioning method based on radio frequency recognition |
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| CN104360365A CN104360365A (en) | 2015-02-18 |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101604397A (en) * | 2009-07-17 | 2009-12-16 | 公安部第三研究所 | Passive ultra-high frequency rfid indoor positioning system |
| CN101957904A (en) * | 2002-01-09 | 2011-01-26 | 传感电子有限责任公司 | Detect the system of RFID tag |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3294726B2 (en) * | 1994-12-20 | 2002-06-24 | 本田技研工業株式会社 | Radar equipment |
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2014
- 2014-11-24 CN CN201410680811.0A patent/CN104360365B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101957904A (en) * | 2002-01-09 | 2011-01-26 | 传感电子有限责任公司 | Detect the system of RFID tag |
| CN101604397A (en) * | 2009-07-17 | 2009-12-16 | 公安部第三研究所 | Passive ultra-high frequency rfid indoor positioning system |
Non-Patent Citations (1)
| Title |
|---|
| 《面向景区智能导游的室内外一体化定位及位置服务方法研究》;余明朗;《中国博士学位论文全文数据库 基础科学辑》;20141115(第11期);正文第42、59-60、120-121页 * |
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Effective date of registration: 20180612 Address after: 410205 Hunan Changsha high tech Development Zone, 68 Huida Road, aerospace Asia Wei science and technology park complex 101 Patentee after: Changsha sky space science and Technology Research Institute Co Ltd Address before: 610000 Sichuan science and technology incubator in Chengdu hi tech Zone Patentee before: CHENGDU GOLDENWAY TECHNOLOGY CO., LTD. |
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