CN103279780A - RFID article positioning device based on RSSI weighing algorithm - Google Patents
RFID article positioning device based on RSSI weighing algorithm Download PDFInfo
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- CN103279780A CN103279780A CN2013102280553A CN201310228055A CN103279780A CN 103279780 A CN103279780 A CN 103279780A CN 2013102280553 A CN2013102280553 A CN 2013102280553A CN 201310228055 A CN201310228055 A CN 201310228055A CN 103279780 A CN103279780 A CN 103279780A
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Abstract
The invention discloses an RFID article positioning device based on an RSSI weighing algorithm, and relates to the technical field of communication. The RFID article positioning device comprises a passive RFID tag, an active RFID tag, a fixed type RFID reader-writer, and a handheld article positioning device and an auxiliary positioning management platform. The passive RFID tag and the active RFID tag are connected with the fixed type RFID reader-writer and the handheld article positioning device respectively through radio-frequency signals, and the fixed type RFID reader-writer and the handheld article positioning device are respectively connected with the auxiliary positioning management platform. By the adoption of the RFID positioning, the RFID article positioning device is flexible and easy to use, the positioning is more accurate through the combination with the RSSI weighing algorithm, and the problem that articles are not positioned accurately is solved.
Description
Technical field
The present invention relates to communication technique field, particularly relate to a kind of RFID article locating device based on the RSSI weighting algorithm.
Background technology
Along with the raising of expanding economy and people's living standard, people's go off daily is more and more frequent, and private property is more and more valuable, but the stolen phenomenon of losing is also serious day by day.
Wireless sensor technology development in recent years is swift and violent, established technical foundation for the identification of personnel and article, accurate location, utilized multiple wireless sensor technology and can help people to provide the information basis in application facet such as asset monitoring management, intelligent decisions in conjunction with electronic information technology.Such as the radio frequency automatic identification that reaches its maturity (RFID) sensing technology, utilize radiofrequency signal to realize that by space coupling (alternating magnetic field or electromagnetic field) contactless information transmission and the information of passing through to transmit reach the technology of identifying purpose exactly, this technology has been widely used in automatic identification and the information sharing of personnel identity, device resource at present.RSSI (Received Signal Strength Indication receive signal intensity indication) weighting algorithm is the wireless signal simple effective method of finding range, and has been widely used in practice.
Yet, wireless sensor technology also is mainly used in fields such as industry, medical treatment, traffic, farming and animal husbandry at present, because the RFID orientation distance is limited, thereby precision is not high, so only rely on the RFID technology to be applied to the personal lifestyle field such as the personal belongings management aspect can not satisfy public demand.
Summary of the invention
In order to overcome the deficiencies in the prior art, the invention provides a kind of RFID article locating device based on the RSSI weighting algorithm.
Technical scheme of the present invention is:
A kind of RFID article locating device based on the RSSI weighting algorithm, comprise passive RFID tags, active RFID tag, fixed rfid interrogator, hand-held article locating device and auxiliary positioning management platform, passive RFID tags and active RFID tag are connected and fixed formula rfid interrogator and hand-held article locating device by radiofrequency signal respectively, and the auxiliary positioning management platform is connected and fixed formula rfid interrogator and hand-held article locating device respectively.
Described hand-held article locating device comprises microcontroller, rfid interrogator, wireless transmit/receive units, man-machine interaction unit and target object position near indicating member, and microcontroller connects rfid interrogator, wireless transmit/receive units, man-machine interaction unit and target object position respectively near indicating member.
Described target object position comprises red LED lamp and green LED lamp near indicating member.
Described man-machine interaction unit comprises touch panel unit and phonetic entry output module.
Described hand-held article locating device also comprises USB interface and local map data base, and USB interface is connected microcontroller respectively with local map data base.
Described hand-held article locating device also comprises RSSI weighting algorithm unit, and RSSI weighting algorithm unit connects microcontroller.
Described fixed rfid interrogator comprises antenna, rfid interrogator chip, microcontroller and communication interface, and antenna, rfid interrogator chip, microcontroller and communication interface are linked in sequence successively.
Described RFID article locating device based on the RSSI weighting algorithm also comprises the map generation unit, and the map generation unit connects the auxiliary positioning management platform.
Described map generation unit comprises the camera group.
The present invention has following good effect:
1, the RFID locator meams among the present invention is simple, effective;
2, this device uses flexibly, can revise the corresponding Item Information of different labels easily; Also can tear label or stick new label again of this device;
3, based on the RFID article locator meams of weighting algorithm, the error of location is littler.
Description of drawings
Fig. 1 is structure of the present invention and principle of work block scheme.
Fig. 2 is the structured flowchart of hand-held article locating device of the present invention.
Fig. 3 is the structured flowchart of fixed rfid interrogator of the present invention.
Embodiment
Below in conjunction with description of drawings the present invention.
A kind of RFID article locating device based on the RSSI weighting algorithm, comprise passive RFID tags, active RFID tag, fixed rfid interrogator, hand-held article locating device and auxiliary positioning management platform, passive RFID tags and active RFID tag are connected and fixed formula rfid interrogator and hand-held article locating device by radiofrequency signal respectively, and the auxiliary positioning management platform is connected and fixed formula rfid interrogator and hand-held article locating device respectively.The RFID location makes this device use flexibly, and is simple, about the combination of RSSI weighting algorithm, makes that the location is more accurate.
We can be with fixing RFID label on the object of needs location, the RFID label is divided into passive RFID tags and active RFID tag, the passive RFID tags volume is little more flexible, though the active RFID tag volume is big slightly, but it is more accurate to locate, and we freely select the RFID label at the object of different needs location.
After needing on the object of location fixedly the RFID label, can constantly read the RFID label by fixed rfid interrogator, thereby tentatively determine general orientation and the scope of object.And then rake about particular location by hand-held article locating device.
Hand-held article locating device comprises microcontroller, rfid interrogator, wireless transmit/receive units, man-machine interaction unit and target object position near indicating member, and microcontroller connects rfid interrogator, wireless transmit/receive units, man-machine interaction unit and target object position respectively near indicating member.The target object position comprises red LED lamp and green LED lamp near indicating member.Can LED send out a warning or green light by arranging, perhaps point out the positional information of article by the frequency that the flicker of LED lamp is set.
Man-machine interaction unit comprises touch panel unit and phonetic entry output module.By touch panel unit and phonetic entry output module can be convenient the position that arranges and search article.
Hand-held article locating device also comprises USB interface and local map data base, and USB interface is connected microcontroller respectively with local map data base.Combining cartographic information guides positioning object, and is directly perceived more, efficient.
Hand-held article locating device also comprises RSSI weighting algorithm unit, and RSSI weighting algorithm unit connects microcontroller.Based on the RFID article locator meams of weighting algorithm, the error of location is littler, locating speed is faster.
Fixed rfid interrogator comprises antenna, rfid interrogator chip, microcontroller and communication interface, and antenna, rfid interrogator chip, microcontroller and communication interface are linked in sequence successively.
RFID article locating device based on the RSSI weighting algorithm also comprises the map generation unit, and the map generation unit connects the auxiliary positioning management platform.Wherein the map generation unit comprises the camera group.The use owner of map generation unit can directly check all article positions by the auxiliary positioning management platform, and is convenient and simple, do not need traditional ransacing, one by one the mode of Que Rening.
Claims (9)
1. RFID article locating device based on the RSSI weighting algorithm, it is characterized in that: comprise passive RFID tags, active RFID tag, fixed rfid interrogator, hand-held article locating device and auxiliary positioning management platform, passive RFID tags and active RFID tag are connected and fixed formula rfid interrogator and hand-held article locating device by radiofrequency signal respectively, and the auxiliary positioning management platform is connected and fixed formula rfid interrogator and hand-held article locating device respectively.
2. the RFID article locating device based on the RSSI weighting algorithm as claimed in claim 1, it is characterized in that: described hand-held article locating device comprises microcontroller, rfid interrogator, wireless transmit/receive units, man-machine interaction unit and target object position near indicating member, and microcontroller connects rfid interrogator, wireless transmit/receive units, man-machine interaction unit and target object position respectively near indicating member.
3. the RFID article locating device based on the RSSI weighting algorithm as claimed in claim 2, it is characterized in that: described target object position comprises red LED lamp and green LED lamp near indicating member.
4. the RFID article locating device based on the RSSI weighting algorithm as claimed in claim 3, it is characterized in that: described man-machine interaction unit comprises touch panel unit and phonetic entry output module.
5. the RFID article locating device based on the RSSI weighting algorithm as claimed in claim 4, it is characterized in that: described hand-held article locating device also comprises USB interface and local map data base, and USB interface is connected microcontroller respectively with local map data base.
6. the RFID article locating device based on the RSSI weighting algorithm as claimed in claim 5, it is characterized in that: described hand-held article locating device also comprises RSSI weighting algorithm unit, RSSI weighting algorithm unit connects microcontroller.
7. as described any one the RFID article locating device based on the RSSI weighting algorithm of claim 1-6, it is characterized in that: described fixed rfid interrogator comprises antenna, rfid interrogator chip, microcontroller and communication interface, and antenna, rfid interrogator chip, microcontroller and communication interface are linked in sequence successively.
8. the RFID article locating device based on the RSSI weighting algorithm as claimed in claim 7, it is characterized in that: described RFID article locating device based on the RSSI weighting algorithm also comprises the map generation unit, the map generation unit connects the auxiliary positioning management platform.
9. the RFID article locating device based on the RSSI weighting algorithm as claimed in claim 8, it is characterized in that: described map generation unit comprises the camera group.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2013102280553A CN103279780A (en) | 2013-06-09 | 2013-06-09 | RFID article positioning device based on RSSI weighing algorithm |
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| CN2013102280553A CN103279780A (en) | 2013-06-09 | 2013-06-09 | RFID article positioning device based on RSSI weighing algorithm |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104766106A (en) * | 2015-03-05 | 2015-07-08 | 桑田智能工程技术(上海)有限公司 | Intelligent tracking and monitoring system based on RFID label signal intensity |
| CN105069493A (en) * | 2015-07-18 | 2015-11-18 | 徐阳 | Supermarket item positioning system |
| US9472075B1 (en) | 2015-06-04 | 2016-10-18 | Tyco Fire & Security Gmbh | Systems and methods for locating items in a facility |
| CN107229954A (en) * | 2017-04-13 | 2017-10-03 | 北京理工大学 | A kind of positioning terminal positioned for confined space, method and system |
| CN107958040A (en) * | 2017-11-22 | 2018-04-24 | 青岛乾恒智能科技有限公司 | A kind of intelligence system for indoor article positioning, management and analysis |
| US10134253B2 (en) | 2015-06-04 | 2018-11-20 | Tyco Fire & Security Gmbh | Systems and methods for locating and determining the orientation of a handheld device |
| CN113030856A (en) * | 2021-03-24 | 2021-06-25 | 江西昌河汽车有限责任公司 | RFID vehicle positioning system based on RSSI algorithm and positioning method thereof |
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| CN102692618A (en) * | 2012-05-23 | 2012-09-26 | 浙江工业大学 | RFID (radio frequency identification) positioning method based on RSSI (received signal strength indicator) weight fusion |
| CN103136497A (en) * | 2011-12-05 | 2013-06-05 | Nxp股份有限公司 | Localization method, computer program product and localization device |
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| WO2012016003A2 (en) * | 2010-07-28 | 2012-02-02 | Fisher-Rosemount Systems, Inc. | Handheld field maintenance device with improved user interface |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104766106A (en) * | 2015-03-05 | 2015-07-08 | 桑田智能工程技术(上海)有限公司 | Intelligent tracking and monitoring system based on RFID label signal intensity |
| US9472075B1 (en) | 2015-06-04 | 2016-10-18 | Tyco Fire & Security Gmbh | Systems and methods for locating items in a facility |
| US10134253B2 (en) | 2015-06-04 | 2018-11-20 | Tyco Fire & Security Gmbh | Systems and methods for locating and determining the orientation of a handheld device |
| CN105069493A (en) * | 2015-07-18 | 2015-11-18 | 徐阳 | Supermarket item positioning system |
| CN107229954A (en) * | 2017-04-13 | 2017-10-03 | 北京理工大学 | A kind of positioning terminal positioned for confined space, method and system |
| CN107958040A (en) * | 2017-11-22 | 2018-04-24 | 青岛乾恒智能科技有限公司 | A kind of intelligence system for indoor article positioning, management and analysis |
| CN107958040B (en) * | 2017-11-22 | 2020-11-03 | 深圳慧智星晨科技有限公司 | Intelligent system for positioning, managing and analyzing indoor articles |
| CN113030856A (en) * | 2021-03-24 | 2021-06-25 | 江西昌河汽车有限责任公司 | RFID vehicle positioning system based on RSSI algorithm and positioning method thereof |
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Application publication date: 20130904 |