CN104360365A - Auxiliary positioning method based on radio frequency recognition - Google Patents
Auxiliary positioning method based on radio frequency recognition Download PDFInfo
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- CN104360365A CN104360365A CN201410680811.0A CN201410680811A CN104360365A CN 104360365 A CN104360365 A CN 104360365A CN 201410680811 A CN201410680811 A CN 201410680811A CN 104360365 A CN104360365 A CN 104360365A
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- Prior art keywords
- rfid tag
- radio
- auxiliary positioning
- mobile terminal
- locator data
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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
- 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 assisted location method based on radio-frequency (RF) identification (RFID).
Background technology
Along with the development of wireless technology, location information service is subject to increasing attention.And as the representative of location information service, GPS (Global Positioning System, GPS) has been widely used in many fields such as automobile navigation, engineering survey, ocean rescue, aircraft navigation, airborne remote sensing.Gps system is made up of space segment, ground control system part and customer equipment part.The network that system consists of the receiver carried by 24 orbiters, ground control system and users is to realization of goal location and navigation feature.The limitation of gps system is to need between localizing objects and orbiter to keep sighting distance (Line of Sight, LOS).When client is in indoor or buildings, when wireless signal directly can not transmit with client device, location cannot reach gratifying accuracy, even loses efficacy.Epson (EPSON) company once attempted by realizing GPS indoor positioning at indoor increase equipment, but the cost of system is very expensive, and positioning time is about lO second, and error is more than 5 meters, and positioning precision and real-time still can not be satisfactory.In order to improve the positional accuracy in indoor, in prior art, there is multiple aided positioning system, having solved the location defect of GPS positioning system in indoor.These aided positioning systems include GSM, CDMA auxiliary positioning etc., particularly, can utilize REID (RFID).REID utilizes radiofrequency signal, carries out contactless bidirectional communication data exchange realize information transmission by alternating magnetic field or electromagnetic field couples, and passes through the object that transmitted information reaches identification and location.Its operating distance is generally tens meters, and as added special antenna (as eight order antennas), then operating distance can reach 300 meters.The anti-collision algorithm of rfid system, makes read write line can identify a large amount of labels at short notice, provides possibility for realizing location in real time.Along with integrated circuit (IC) design technology is increasingly mature, RFID label tag price is increasingly cheap, greatly reduces the cost of RFID indoor locating system.Except above technology, also have cellular localization, radar fix, light track and localization and the technology such as location based on graphical analysis.In numerous indoor positioning technologies, RFID has that noncontact, non line of sight, cost are low, positioning precision advantages of higher, therefore becomes preferred auxiliary indoor positioning technologies.But even based on the aided positioning system of RFID, also still there is the problem of locating speed, degree of accuracy shortcoming, the locating speed and the degree of accuracy that how to promote satellite navigation location further become the problem needing solution badly.In order to address this problem, propose a kind of assisted location method based on radio-frequency (RF) identification herein, can effectively solve the problem.
Summary of the invention
Technical matters to be solved by this invention is: the locating speed and the degree of accuracy that how to promote satellite navigation location.For this reason, the present invention proposes a kind of assisted location method based on radio-frequency (RF) identification, can solve one or more problems that restriction and defect due to prior art cause fully.
Additional advantages of the present invention, object and characteristic, a part will be elucidated in the following description, and another part for those of ordinary skill in the art by being obvious to the investigation of explanation below or acquiring from enforcement of the present invention.Can realize and obtain the object of the invention and advantage by the structure pointed out especially in the instructions of word and claims and accompanying drawing.
The invention provides a kind of assisted location method based on radio-frequency (RF) identification, comprise the following steps:
Whether RFID tag is there is in the coverage that mobile terminal determines its radio-frequency (RF) identification auxiliary positioning receiver, and, if there is RFID tag in the coverage of the radio-frequency (RF) identification auxiliary positioning receiver of mobile terminal, connect with this RFID tag;
Described RFID tag is placed in the region that satellite navigation signals cannot cover, and stores locator data, also include the recent renewal temporal information of data in described locator data in described RFID tag;
According to the data recent renewal temporal information comprised in the data recent renewal temporal information comprised in the described locator data stored in described RFID tag and the locator data stored in the radio-frequency (RF) identification auxiliary positioning receiver of mobile terminal, determine the more new state of described locator data;
When recent renewal time early than the locator data of RFID tag recent renewal time of the locator data of mobile terminal radio frequency identification auxiliary positioning receiver, the locator data stored is sent to mobile terminal radio frequency identification auxiliary positioning receiver in RFID tag;
When recent renewal time early than the locator data of mobile terminal radio frequency identification auxiliary positioning receiver recent renewal time of the locator data of RFID tag, the locator data stored in the radio-frequency (RF) identification auxiliary positioning receiver of mobile terminal is sent to described RFID tag.
Preferably, the expired time of data is also included in described locator data.
Preferably, when the expired time in the locator data stored in described RFID tag indicates these data expired, these data are deleted.
Preferably, when the recent renewal time of the locator data of mobile terminal radio frequency identification auxiliary positioning receiver is identical with the recent renewal time of the locator data of RFID tag, disconnect the connection between mobile terminal and this RFID tag.
Preferably, also provide clock signal, in response to each time clock of clock signal, described satellite navigation signals is gps signal.
Accompanying drawing explanation
Fig. 1 is the structural representation of the aided positioning system based on radio-frequency (RF) identification according to the embodiment of the present invention.
Fig. 2 is the process flow diagram of the assisted location method based on radio-frequency (RF) identification according to the embodiment of the present invention.
Embodiment
With reference to the accompanying drawings the present invention is described more fully, exemplary embodiment of the present invention is wherein described.
As shown in Figure 1, mobile terminal, RFID tag, Navsat and assisted location service device is comprised according to the aided positioning system based on radio-frequency (RF) identification of the embodiment of the present invention.Described Navsat is such as gps satellite.Described RFID tag is placed in the region that satellite navigation signals cannot cover, and stores locator data in described RFID tag.Radio-frequency (RF) identification auxiliary positioning receiver is comprised in mobile terminal, it is communicated with Navsat by antenna, communicated with assisted location service device by signal wire, described radio-frequency (RF) identification auxiliary positioning receiver is from Navsat or secondary server Received signal strength, and the signal received comprises positioning signal.
If mobile terminal has found RFID tag in the coverage of radio-frequency (RF) identification auxiliary positioning receiver, then this mobile terminal can connect with this RFID tag.After mobile terminal and this RFID tag successful connection, compare the recent renewal time of the locator data of locator data in radio-frequency (RF) identification auxiliary positioning receiver and RFID tag.If the recent renewal time of the locator data in radio-frequency (RF) identification auxiliary positioning receiver is early than the recent renewal time of the locator data of RFID tag, then the locator data stored in its storage unit is sent to connected mobile terminal radio frequency identification auxiliary positioning receiver by RFID tag.Accordingly, if during the recent renewal time of the recent renewal time of the locator data in RFID tag early than the locator data of mobile terminal radio frequency identification auxiliary positioning receiver, then the locator data stored in its storage unit is sent to described RFID tag by the radio-frequency (RF) identification auxiliary positioning receiver of mobile terminal.
The radio-frequency (RF) identification auxiliary positioning receiver of mobile terminal comprises antenna, satellite navigation receiver, controller and rfid uint.Described rfid uint comprises rfid transmissions module and RFID tag read module.Storage unit is included, for store location data in described satellite navigation receiver.Positioning signal in described radio-frequency (RF) identification auxiliary positioning receiver can be upgraded by Navsat or assisted location service device.Controller, sends to RFID tag by locator data from radio-frequency (RF) identification auxiliary positioning receiver for controlling or sends to radio-frequency (RF) identification auxiliary positioning receiver from RFID tag.
Fig. 2 shows the process flow diagram of the assisted location method based on radio-frequency (RF) identification according to the embodiment of the present invention.
Whether RFID tag is there is in the coverage that mobile terminal determines its radio-frequency (RF) identification auxiliary positioning receiver, and, if there is RFID tag in the coverage of the radio-frequency (RF) identification auxiliary positioning receiver of mobile terminal, connect with this RFID tag.
Described RFID tag is placed in the region that satellite navigation signals cannot cover, and stores locator data, also include recent renewal temporal information and the expired time of data in described locator data in described RFID tag.
When the expired time in the locator data stored in described RFID tag indicates these data expired, these data are deleted.
According to the data recent renewal temporal information comprised in the data recent renewal temporal information comprised in the described locator data stored in described RFID tag and the locator data stored in the radio-frequency (RF) identification auxiliary positioning receiver of mobile terminal, determine the more new state of described locator data.
When recent renewal time early than the locator data of RFID tag recent renewal time of the locator data of mobile terminal radio frequency identification auxiliary positioning receiver, the locator data stored is sent to mobile terminal radio frequency identification auxiliary positioning receiver in RFID tag.
When recent renewal time early than the locator data of mobile terminal radio frequency identification auxiliary positioning receiver recent renewal time of the locator data of RFID tag, the locator data stored in the radio-frequency (RF) identification auxiliary positioning receiver of mobile terminal is sent to described RFID tag.
When the recent renewal time of the locator data of mobile terminal radio frequency identification auxiliary positioning receiver is identical with the recent renewal time of the locator data of RFID tag, disconnect the connection between mobile terminal and this RFID tag.
Above content is only preferred embodiment of the present invention, those having ordinary skill in the art will appreciate that: according to thought of the present invention, can carry out multiple change, amendment, replacement and modification to these embodiments when not departing from principle of the present invention and aim, this description should not be construed as limitation of the present invention.
Claims (5)
1., based on an assisted location method for radio-frequency (RF) identification, comprise the following steps:
Whether RFID tag is there is in the coverage that mobile terminal determines its radio-frequency (RF) identification auxiliary positioning receiver, and, if there is RFID tag in the coverage of the radio-frequency (RF) identification auxiliary positioning receiver of mobile terminal, connect with this RFID tag;
Described RFID tag is placed in the region that satellite navigation signals cannot cover, and stores locator data, also include the recent renewal temporal information of data in described locator data in described RFID tag;
According to the data recent renewal temporal information comprised in the data recent renewal temporal information comprised in the described locator data stored in described RFID tag and the locator data stored in the radio-frequency (RF) identification auxiliary positioning receiver of mobile terminal, determine the more new state of described locator data;
When recent renewal time early than the locator data of RFID tag recent renewal time of the locator data of mobile terminal radio frequency identification auxiliary positioning receiver, the locator data stored is sent to mobile terminal radio frequency identification auxiliary positioning receiver in RFID tag;
When recent renewal time early than the locator data of mobile terminal radio frequency identification auxiliary positioning receiver recent renewal time of the locator data of RFID tag, the locator data stored in the radio-frequency (RF) identification auxiliary positioning receiver of mobile terminal is sent to described RFID tag.
2. the assisted location method based on radio-frequency (RF) identification according to claim 1, is characterized in that, also includes the expired time of data in described locator data.
3. the assisted location method based on radio-frequency (RF) identification according to claim 2, is characterized in that, when the expired time in the locator data stored in described RFID tag indicates these data expired, these data is deleted.
4. the assisted location method based on radio-frequency (RF) identification according to claim 1, it is characterized in that, when the recent renewal time of the locator data of mobile terminal radio frequency identification auxiliary positioning receiver is identical with the recent renewal time of the locator data of RFID tag, disconnect the connection between mobile terminal and this RFID tag.
5. the assisted location method based on radio-frequency (RF) identification according to claim 1, is characterized in that, described satellite navigation signals is gps signal.
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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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| CN201410680811.0A CN104360365B (en) | 2014-11-24 | 2014-11-24 | Auxiliary positioning method based on radio frequency recognition |
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Citations (3)
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| US5686921A (en) * | 1994-12-20 | 1997-11-11 | Honda Giken Kogyo Kabushiki Kaisha | Radar system |
| 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 |
-
2014
- 2014-11-24 CN CN201410680811.0A patent/CN104360365B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5686921A (en) * | 1994-12-20 | 1997-11-11 | Honda Giken Kogyo Kabushiki Kaisha | Radar 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 |
| 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 |
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| 余明朗: "《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》", 《中国博士学位论文全文数据库 基础科学辑》 * |
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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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