CN102750498A - Reader, transponder, location system and location method - Google Patents
Reader, transponder, location system and location method Download PDFInfo
- Publication number
- CN102750498A CN102750498A CN2011101020225A CN201110102022A CN102750498A CN 102750498 A CN102750498 A CN 102750498A CN 2011101020225 A CN2011101020225 A CN 2011101020225A CN 201110102022 A CN201110102022 A CN 201110102022A CN 102750498 A CN102750498 A CN 102750498A
- Authority
- CN
- China
- Prior art keywords
- module
- transponder
- information
- control module
- identification
- 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
Images
Abstract
The invention discloses a reader. The reader comprises a first control module, an identification module and a low-frequency location module, wherein the first control module is used for sending location request information to the low-frequency location module and is also used for sending an information reading request to the identification module; the low-frequency location module is used for sending a low-frequency carrier wave to a transponder after receiving the location request information of the first control module; the identification module is used for reading location information which is generated by the transponder according to the received low-frequency carrier wave after receiving the information reading request, and sending the location information to the first control module; and the position information of the transponder can be determined by the first control module according to the location information. The invention also discloses the transponder which is matched with the reader to carry out location, a location system and a location method. The reader, the transponder, the location system and the location method disclosed by the invention have the beneficial effects that the influence on the location by a metal shielding object is avoided, ID (Identification) information of the transponder is also confirmed after the location, and the location efficiency is increased.
Description
Technical field
The present invention relates to location technology, relate in particular to reader, transponder, positioning system and localization method.
Background technology
Along with the development of Internet of Things, people are urgent day by day to the location and the track demand of article.How the particular location of judgment object accurately and has effectively become a new industry and has become one of popular research field.Receive the restriction of conditions such as positioning time, bearing accuracy and complex environment, the location technology that exists at present also can't realize accurate location well.Location technology commonly used comprises infrared ray, ultrasound wave, GPS, Wi-Fi etc., but defective such as these technology exist that orientation range is little, poor anti jamming capability, bearing accuracy are low.
The infrared ray location technology only is suitable for short distance to be propagated, and is disturbed by the light in fluorescent light or the room easily, so this location technology has significant limitation at orientation range with on locating accurately.Though ultrasonic propagation location technology distance is far away, influenced greatly by multipath effect and non-line-of-sight propagation, so this location technology is harsh to environmental requirement, and is not suitable for indoor environment location.The GPS location technology is to use the most outdoor location technology at present; It is early 1970s the U.S. be used for the satellite navigation and location system of military purposes exploitation; Mainly utilize the measurement data of several satellites to calculate location of mobile users, coverage is big, but when positioning signal arrives ground a little less than; Can not penetrate buildings, so this location technology only is applicable to the outdoor indoor positioning that is not suitable for.
The Wi-Fi location technology is applied to indoor or outdoors location among a small circle, and cost is lower.All be easy to receive the interference of other signals but be used for indoor or outdoor location, thereby influence its precision, the energy consumption of steady arm is also higher.
At present existing positioning system among a small circle all is based on rf frequency (315MHz, 433MHz, 915MHz, 2.4GHz, 5.8GHz), HF (13.56MHz), LF (125KHz) exploitation.The method of location all is adopt to detect the object that is positioned to return the distance that the energy size is judged be positioned physics and positioning system, thereby realizes the position of mensuration object.
For the influence that receives shelter based on the positioning system of rf frequency owing to radiofrequency signal easily; Please refer to Fig. 1 and Fig. 2; Fig. 1 is the change curve that each frequency localization technology is blocked by metal to be influenced shown in Fig. 2 for there being the synoptic diagram of metal shelter between reader and transponder.
Summary of the invention
The technical matters that the present invention will solve is, overcomes existing location technology accurate defective of positioning object when having metal to block.
For solving the problems of the technologies described above, on the one hand, the present invention provides a kind of reader, comprises first control module, identification module and low frequency locating module, and wherein said first control module is used for sending positioning request information to said low frequency locating module; Said low frequency locating module is used for after the positioning request information that receives said first control module, sending low frequency carrier signal to outside transponder; Said first control module also is used for reading solicited message to said identification module transmission; Said identification module; Be used to receive read and read the locating information that said transponder sends after the solicited message; And said locating information sent to said first control module, said first control module is confirmed the positional information of said transponder according to said locating information.
Concrete, above-mentioned locating information is for receiving the signal intensity indicating RSSI value.
Said identification module also is used to read the id information of said transponder, and the id information of said transponder is sent to said first control module, and said first control module judges whether to be transponder to be positioned according to the id information of said transponder.
On the other hand; The present invention provides a kind of transponder; Second control module, the LF-response module that comprise the id information that stores transponder; Said LF-response module is used to receive low frequency carrier signal, and the low frequency carrier signal that receives with basis produces locating information, and said locating information is sent to said second control module.
Said transponder also comprises the identification respond module; After said identification respond module receives and reads solicited message; Send the said solicited message that reads and give second control module; Said second control module receive said read solicited message after, the id information of locating information and transponder is sent to said identification respond module.
Concrete, above-mentioned locating information is for receiving the signal intensity indicating RSSI value.
On the other hand, the present invention provides a kind of positioning system, comprises reader and transponder, and said reader is provided with the low frequency locating module and first control module, and said transponder is provided with low frequency location response module; Said low frequency locating module emission low frequency carrier signal is given the LF-response module; After receiving said low frequency carrier signal, said LF-response module produces locating information; And sending to said first control module through the identification module on the reader, said first control module is confirmed the positional information of said transponder according to said locating information.
Also be provided with second control module of the id information of storage transponder on the said transponder; Said second control module is used to store said locating information, and locating information is issued first control module of reader via the identification respond module after reading solicited message receiving.
Concrete, above-mentioned locating information is for receiving the signal intensity indicating RSSI value.
Further, said transponder receives said first control module that the id information of the transponder of storage is sent to said reader that reads after the solicited message also.
In one embodiment, the identification module of said reader sends to the identification respond module of said transponder through the ultrahigh frequency carrier wave and reads solicited message.
On the other hand, the present invention provides a kind of localization method, and said method comprises:
First control module is sent positioning request information and is given the low frequency locating module;
Said low frequency locating module sends low frequency carrier signal to the LF-response module of transponder after receiving the positioning request information that said first control module sends;
The locating information that said LF-response module produces according to the low frequency carrier signal that receives, and said locating information sent to said first control module through identification respond module and identification module;
Said first control module is confirmed the positional information of said transponder according to the said locating information that receives.Concrete, above-mentioned locating information is for receiving the signal intensity indicating RSSI value.
Said first control module is sent to said identification module and is read solicited message; Said identification module receive said read solicited message after, through identification respond module read the locating information of storing in second control module.
After said identification module receives and reads solicited message; Also read the id information of the transponder of storing in second control module; And the id information of said transponder sent to said first control module; Said first control module judges whether to be transponder to be positioned according to the id information of said transponder, as not, then reorientates.
The identification module of said reader sends to the identification respond module of said transponder through the ultrahigh frequency carrier wave and reads solicited message.
The invention has the beneficial effects as follows: through adopting the low-frequency technology location; Avoided when having metal to block, locating inaccurate problem; Adopt ultra-high frequency RFID technology to carry out reading of transponder information simultaneously; Further judge whether institute's location transponder is transponder to be positioned, improved the accuracy and the efficient of location.
Description of drawings
Fig. 1 is for existing the synoptic diagram of metal shelter between reader and transponder;
Fig. 2 by metal occlusion effect and location the change curve of employing frequency;
Fig. 3 is the structural drawing of reader of the present invention in an embodiment of the present invention;
Fig. 4 is the structural drawing of transponder among the present invention in an embodiment of the present invention;
Fig. 5 is the structural drawing of positioning system in an embodiment of the present invention;
Fig. 6 is the process flow diagram of localization method in an embodiment of the present invention.
Embodiment
Combine accompanying drawing that the present invention is done further explain through embodiment below.
Please refer to Fig. 3, is among a kind of embodiment shown in the figure, the structural drawing of reader of the present invention.Reader comprises low frequency locating module 311, first control module 312, identification module 313.First control module 312 is sent positioning request information with certain cycle to low frequency locating module 311, and low frequency locating module 311 sends low frequency carrier signal to transponder after receiving the positioning request information that first control module 312 sends.(certain time interval is perhaps arranged) simultaneously, first control module 312 is sent to identification module 313 and is read solicited message, and identification module 313 is transmitted the said solicited message that reads through antenna with the mode of ultrahigh frequency carrier wave UHF.On the other hand; After identification module 313 reads needed information; The information that reads is sent to first control module 312; After first control module 312 receives its locating information that reads of identification module 313 transmissions, thereby it is realized the location according to the positional information of said locating information definite response device.In another embodiment, the information that reads also comprises the id information of transponder, because each transponder has unique id information.First control module 312 can judge whether the transponder that navigates to is transponder to be positioned according to the id information of said transponder.
Please refer to Fig. 4, is among a kind of embodiment shown in the figure, the structural drawing of the transponder among the present invention.Transponder comprises low frequency location response module 321, second control module 322, identification respond module 323.Low frequency location response module 321 receives aerial low frequency carrier signal and is activated; Produce locating information according to the low frequency carrier signal that receives; Just receive the signal intensity indicating RSSI value, and said reception signal intensity indicating RSSI value is deposited in the register of second control module 322.The id information of transponder also is stored in second control module 322.On the other hand; Identification respond module 323 receives through antenna and reads solicited message; And will receive said read solicited message be transmitted to second control module, 322, the second control modules 322 receive said read solicited message after, with the reception signal intensity indicating RSSI value in its register send to identification respond module 323; In another embodiment, second control module 322 also sends to the identification respond module with the id information of the transponder of storing.Identification respond module 323 is given identification module with it through antenna transmission after receiving the id information that receives signal intensity indicating RSSI value and/or transponder.Need to prove that first control module 312 of reader is according to the positional information of the reception signal intensity indicating RSSI value definite response device that receives.
Please refer to Fig. 5, is among a kind of embodiment shown in the figure, the structural drawing of positioning system of the present invention.This positioning system comprises reader 31, transponder 32; Said reader 31 comprises low frequency locating module 311, first control module 312, identification module 313, and said transponder 32 comprises low frequency location response module 321, second control module 322, identification respond module 323.In reader 31, low frequency locating module 311 is connected with first control module 312, first control module 312 and 313 two-way connections of identification module.In transponder 32, low frequency location response module 321 is connected with second control module 322, second control module 322 and identification 323 two-way connections of respond module.Low frequency locating module 311 is communicated by letter with the mode of low frequency carrier signal with low frequency location response module 321 and is connected, identification module 313 and the mode interactive information of identification respond module 323 with RF identification.In addition, be connected with antenna respectively on identification module 313 and the identification respond module 323.In one embodiment, in order to reduce the adverse effect of metal shelter, adopt the ultra-high frequency carrier wave to discern between identification module 313 and the identification respond module 323 to information Recognition.Please refer to the influence that each frequency of metal pair is blocked among Fig. 2.
Need to prove that for the situation of a reader is only arranged, transponder is carried out accurately location of three-dimensional if desired, can adopt a plurality of readers, positions from different position transponder respectively shown in Fig. 5.According to the RSSI (Received Signal Strength Indicator receives the intensity indication of signal) that each reader receives, background system goes out the exact position of transponder according to certain algorithm computation, thereby realizes accurately location.
Please refer to Fig. 6, is reader localization method, transponder localization method and the mutual process flow diagram of the two realization shown in the figure, wherein has the id information of transponder in second control module 322.
S11: first control module 312 is sent positioning request information and is given low frequency locating module 311;
S21: low frequency locating module 311 sends low frequency carrier signal;
S31: be activated after low frequency location response module 321 receives low frequency carrier signal;
S41: low frequency location response module 321 produces according to the low frequency carrier signal that receives and receives the signal intensity indicating RSSI value;
S51: low frequency location response module 321 will receive the signal intensity indicating RSSI value and store in second control module 322.
Need to prove that step S12 can carry out with step S11 simultaneously, also can behind step S11, carry out.
S12: first control module 312 is sent and is read solicited message to identification module 313;
S22: identification module 313 will read solicited message and send to identification respond module 323;
S32: identification respond module 323 receives to read and sends to second control module, 322, the second control modules 322 after the solicited message and receive the id information that reads after the solicited message the RSSI value of its storage and transponder and send to and discern respond module 323;
S42: identification module 313 reads RSSI value and the id information of transponder of identification in the respond module;
S52: identification module 313 sends to the positional information of first control module, 312, the first control modules 312 according to RSSI value definite response device with the id information of RSSI value that reads and transponder;
S62: first control module 312 judges according to the id information of the transponder that receives whether transponder is transponder to be positioned, if, finish the location, if not, be back to step S11 and search transponder again.
Need to prove that among the present invention, have the transponder of describing among the present invention on the article to be positioned, the positioning instant of transponder is the location to respective articles.
The invention provides a kind of reader that adopts low-frequency technology to position, transponder, system and method; Avoided because metal blocks the influence that the location is caused; And locating information and Item Information are returned to reader through ultra-high frequency RFID technology, improved the location efficiency and the accuracy of system.
Claims (16)
1. a reader is characterized in that, comprises first control module, identification module, low frequency locating module, wherein,
Said first control module is used for sending positioning request information to said low frequency locating module;
Said low frequency locating module is used for after the positioning request information that receives said first control module, sending low frequency carrier signal to outside transponder;
Said first control module also is used for reading solicited message to said identification module transmission;
Said identification module; Be used to receive read and read the locating information that said transponder sends after the solicited message; And said locating information sent to said first control module, said first control module is confirmed the positional information of said transponder according to said locating information.
2. reader as claimed in claim 1 is characterized in that, said locating information is for receiving the signal intensity indicating RSSI value.
3. reader as claimed in claim 1; It is characterized in that; Said identification module also is used to read the id information of said transponder; And the id information of said transponder sent to said first control module, said first control module judges whether to be transponder to be positioned according to the id information of said transponder.
4. a transponder is characterized in that, comprising:
Second control module, it stores the id information of transponder;
Low frequency location response module is used to receive low frequency carrier signal, and the low frequency carrier signal that receives with basis produces locating information, and said locating information is sent to said second control module.
5. transponder as claimed in claim 4; It is characterized in that; Also comprise the identification respond module, after said identification respond module receives and reads solicited message, send the said solicited message that reads and give second control module; Said second control module receive said read solicited message after, the id information of locating information and transponder is sent to said identification respond module.
6. like claim 4 or 5 described transponders, it is characterized in that said locating information is for receiving the signal intensity indicating RSSI value.
7. a positioning system is characterized in that, comprises reader and transponder, and wherein, said reader is provided with the low frequency locating module and first control module, and said transponder is provided with low frequency location response module; Said low frequency locating module emission low frequency carrier signal is given the LF-response module; Said LF-response module is used for producing locating information according to the low frequency carrier signal that receives; And sending to said first control module through the identification respond module and the identification module on the reader of transponder, said first control module is confirmed the positional information of said transponder according to said locating information.
8. positioning system as claimed in claim 7; It is characterized in that; Also be provided with second control module of the id information of storage transponder on the said transponder; Said second control module is used to store said locating information, and locating information is issued first control module of reader via the identification respond module after reading solicited message receiving.
9. like claim 7 or 8 described positioning systems, it is characterized in that said locating information is for receiving the signal intensity indicating RSSI value.
10. positioning system as claimed in claim 7 is characterized in that, the identification respond module of said transponder receives said first control module that the id information of the transponder of storage is sent to said reader that reads after the solicited message also.
11. positioning system as claimed in claim 7 is characterized in that, the identification module of said reader carries out information interaction through the identification respond module of ultrahigh frequency carrier wave and said transponder.
12. a localization method is characterized in that, said method comprises:
First control module is sent positioning request information and is given the low frequency locating module;
Said low frequency locating module sends low frequency carrier signal to the LF-response module of transponder after receiving the positioning request information that said first control module sends;
The locating information that said LF-response module produces according to the low frequency carrier signal that receives, and said locating information sent to said first control module through identification respond module and identification module;
Said first control module is confirmed the positional information of said transponder according to the said locating information that receives.
13. localization method as claimed in claim 12 is characterized in that, said locating information is for receiving the signal intensity indicating RSSI value.
14. localization method as claimed in claim 12 is characterized in that, said first control module is sent to said identification module and is read solicited message; Said identification module receive said read solicited message after, through identification respond module read the locating information of storing in second control module.
15. localization method as claimed in claim 14; It is characterized in that, after said identification module receives and reads solicited message, also read the id information of the transponder of storing in second control module; And the id information of said transponder sent to said first control module; Said first control module judges whether to be transponder to be positioned according to the id information of said transponder, as not, then reorientates.
16., it is characterized in that the identification module of said reader carries out information interaction through the identification respond module of ultrahigh frequency carrier wave and said transponder like claim 14 or 15 described localization methods.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101020225A CN102750498A (en) | 2011-04-22 | 2011-04-22 | Reader, transponder, location system and location method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101020225A CN102750498A (en) | 2011-04-22 | 2011-04-22 | Reader, transponder, location system and location method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102750498A true CN102750498A (en) | 2012-10-24 |
Family
ID=47030670
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101020225A Pending CN102750498A (en) | 2011-04-22 | 2011-04-22 | Reader, transponder, location system and location method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102750498A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103217682A (en) * | 2013-04-12 | 2013-07-24 | 杭州华韵天略电子科技有限公司 | Target location and tracking system and method based on low-frequency electromagnetic wave |
| CN104678357A (en) * | 2013-11-28 | 2015-06-03 | 国民技术股份有限公司 | Positioning method, terminal and positioning system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101324668A (en) * | 2008-07-16 | 2008-12-17 | 黄以华 | Wireless radio frequency positioning method |
| CN101725370A (en) * | 2008-10-14 | 2010-06-09 | 海洋王照明科技股份有限公司 | Underground locating and monitoring system |
| CN101951547A (en) * | 2010-09-03 | 2011-01-19 | 杭州电子科技大学 | Near-field low-frequency wireless positioning method used for automatically-guided vehicle |
| CN102014397A (en) * | 2010-09-08 | 2011-04-13 | 邵旭昂 | Radio frequency identification method and radio frequency identification system |
-
2011
- 2011-04-22 CN CN2011101020225A patent/CN102750498A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101324668A (en) * | 2008-07-16 | 2008-12-17 | 黄以华 | Wireless radio frequency positioning method |
| CN101725370A (en) * | 2008-10-14 | 2010-06-09 | 海洋王照明科技股份有限公司 | Underground locating and monitoring system |
| CN101951547A (en) * | 2010-09-03 | 2011-01-19 | 杭州电子科技大学 | Near-field low-frequency wireless positioning method used for automatically-guided vehicle |
| CN102014397A (en) * | 2010-09-08 | 2011-04-13 | 邵旭昂 | Radio frequency identification method and radio frequency identification system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103217682A (en) * | 2013-04-12 | 2013-07-24 | 杭州华韵天略电子科技有限公司 | Target location and tracking system and method based on low-frequency electromagnetic wave |
| CN104678357A (en) * | 2013-11-28 | 2015-06-03 | 国民技术股份有限公司 | Positioning method, terminal and positioning system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102043151B (en) | Mobile terminal and method for positioning based on radio frequency identification | |
| CA2599406C (en) | System and method for asset location in wireless networks | |
| CN103389487B (en) | Indoor orientation method and device | |
| CN101604021B (en) | Location method and device of wireless radio frequency identification system | |
| CN103561462A (en) | Indoor positioning system and method totally based on smart mobile terminal platform | |
| CN102879776B (en) | Radio frequency identification distance measurement or positioning system and method thereof | |
| CN104330771A (en) | Indoor RFID precise positioning method and device | |
| CN1818713A (en) | Ultrasonic positioning method of active long-range radio-frequency electronic label | |
| CN109342996B (en) | Mobile phone accurate positioning searching device and method based on RFID global orthogonal rotation antenna | |
| CN107356903A (en) | Passive RFID localization method and device based on phase difference measurement | |
| CN103698745B (en) | The method of indoor wireless positioning equipment and realization location thereof | |
| CN102547791B (en) | Method and device for detecting movement direction of mobile terminal based on radio-frequency wireless signals | |
| CN102831451B (en) | Relative neighborhood map based passive RFID (Radio Frequency Identification Device) label positioning method | |
| CN101975938A (en) | Five-dimensional positioning method and system based on radio-frequency signals | |
| CN103954929A (en) | Radio frequency tag locating method and system | |
| CN103995250A (en) | Method for tracking radio frequency tag track | |
| CN105005022A (en) | Multimode indoor positioning method and device based on radio frequency and ultrasonic wave | |
| CN206096431U (en) | Indoor positioning system based on radio frequency identification technology | |
| CN107122811A (en) | The intelligent RFID reader and method positioned in real time for active radio frequency label | |
| CN103150527A (en) | Locating method and device for radio frequency identification tags | |
| CN102542227B (en) | Built-up jig assembling detection method based on radio frequency identification devices (RFID) | |
| Lim et al. | A robust RFID-based method for precise indoor positioning | |
| CN102542230B (en) | Passive electronic tag two-dimensional positioning method based on radio frequency identification (RFID) technology | |
| CN109254264A (en) | A kind of improved UHF-RFID localization method | |
| CN102750498A (en) | Reader, transponder, location system and location method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20121024 |
|
| RJ01 | Rejection of invention patent application after publication |