CN103091670A - Radio frequency identification device (RFID)-subscriber identity module (SIM) mobile communication system and method of distance judgment of RFID-SIM mobile communication - Google Patents
Radio frequency identification device (RFID)-subscriber identity module (SIM) mobile communication system and method of distance judgment of RFID-SIM mobile communication Download PDFInfo
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- CN103091670A CN103091670A CN 201110338211 CN201110338211A CN103091670A CN 103091670 A CN103091670 A CN 103091670A CN 201110338211 CN201110338211 CN 201110338211 CN 201110338211 A CN201110338211 A CN 201110338211A CN 103091670 A CN103091670 A CN 103091670A
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Abstract
The invention discloses a method of distance judgment between a radio frequency identification device (RFID)-subscriber identity module (SIM) mobile terminal and a card reader. The method of distance judgment between the RFID-SIM mobile terminal and the card reader comprises that the distance between the RFID-SIM mobile terminal and the card reader is changed and recorded. The signal intensities of signals received by the card reader are measured in various distances. A signal intensity-distance model is built according to the signal intensities and the distances. A new signal intensity is measured, and a new distance relative to the new signal intensity is obtained by the signal intensity-distance model. The invention further provides a RFID-SIM mobile communication system which is used for the method of distance judgment between the RFID-SIM mobile terminal and the card reader. By the adoption that the signal intensity-distance model is built to estimate the distance, the accuracy of the RFID-SIM mobile payment in distance estimating aspect is improved.
Description
Technical field
The embodiment of the present invention relates to the mobile payment field, relates in particular to a kind of RFID-SIM close range wireless communication apart from confirmation method and uses described RFID-SIM close range wireless communication apart from the RFID-SIM mobile communcations system of confirmation method.
Background technology
Mobile payment also referred to as mobile-phone payment, allows the user to use its mobile terminal (normally mobile phone, also comprise PDA etc.) to carry out to commodity or the service of consuming a kind of method of service that account is paid exactly.At present main mobile payment technology mainly comprises NFC, eNFC, SIM-PASS, RFID-SIM, RFID-SD etc. in the world.
Wherein, the development prospect of RFID-SIM mobile payment technology is better, and easily industrialization.The RFID-SIM technological core is a double-interface smart card RFID-SIM card, it had both had the same functionality mobile communication of common SIM card, can carry out close range wireless communication by attached signal transmitting and receiving module and determination module and card reader thereon again, for example mobile phone on-site payment and identity authentication function.
Continuous progress along with universal, the mobile communication technology of mobile terminal, the continuous expansion of mobile payment service, people can only realize all kinds of activities such as traffic ticketing service, shopping, access control and attendance, food and drink consumption by a mobile terminal, bring great convenience for people's life, work.
When taking the Near Field Communication mode to conclude the business based on the mobile payment of RFID-SIM, need to carry out the work such as message exchange and safety certification between card reader end and mobile terminal, and needed to determine before payment transaction begins between card reader and mobile terminal distance within the specific limits, to guarantee the security of mobile payment, otherwise may cause unexpected mobile payment or cause mobile payment unsuccessfully to wait problem, so range estimation becomes an important content.
Summary of the invention
In order to solve the problems of the technologies described above, the embodiment of the invention discloses the method for Distance Judgment between a kind of RFID-SIM mobile terminal and card reader, comprising: change the distance between described RFID-SIM mobile terminal and described card reader, and record described distance; The signal intensity of described card reader received signal when measuring different distance; According to described signal intensity and described distance, set up signal intensity-distance model; Measure new signal intensity, and obtain new distance corresponding to described new signal intensity according to described signal intensity-distance model.
In a preferred embodiment of the present invention, described signal intensity and described distance are linear, and described signal intensity-distance model is linear model.
In a preferred embodiment of the present invention, the model parameter of described linear model is utilized the linear regression method estimation.
In a preferred embodiment of the present invention, it is nonlinear model that described signal intensity becomes nonlinear relationship, described signal intensity-distance model with described distance.
In a preferred embodiment of the present invention, the model parameter of described nonlinear model is utilized the non-linear regression method estimation.
In a preferred embodiment of the present invention, described signal is the signal that electromagnetic wave, sound wave and other intensities change apart from change.
In order to solve the problems of the technologies described above, the embodiment of the present invention also provides a kind of RFID-SIM mobile communcations system, comprises RFID-SIM mobile terminal and card reader.Described card reader comprises microprocessing unit, described microprocessing unit comprises signal intensity-distance calculating module, described card reader receives the signal that the RFID-SIM mobile terminal sends, and described signal intensity-distance is calculated module according to the signal intensity described RFID-SIM mobile terminal of calculating of described signal and the distance between card reader.
In a preferred embodiment of the present invention, described card reader further comprises first signal generator and first signal detector, described RFID-SIM mobile terminal comprises secondary signal generator and secondary signal detector, described first signal generator transmitted signal, described secondary signal detector is surveyed the signal that described first signal generator sends, described secondary signal generator sends described signal to described first signal detector, and described first signal detector is surveyed the signal that described secondary signal generator sends.
In a preferred embodiment of the present invention, described RFID-SIM mobile terminal further comprises controller, and described controller is controlled described secondary signal generator transmitted signal.
The invention has the beneficial effects as follows: the situation that is different from prior art, embodiment of the present invention utilization is set up signal intensity-distance model and is carried out Distance Judgment between RFID-SIM mobile terminal and card reader, has improved the accuracy of RFID-SIM mobile payment aspect distance estimations.
Description of drawings
In order to be illustrated more clearly in the technical scheme in the embodiment of the present invention, during the below will describe embodiment, the accompanying drawing of required use is done to introduce simply, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings, wherein:
Fig. 1 is the mutual schematic diagram of functional module of RFID-SIM mobile communcations system the first embodiment of the present invention.
Fig. 2 is the mutual schematic diagram of functional module of RFID-SIM mobile communcations system the second embodiment of the present invention.
Fig. 3 is the schematic flow sheet of the method for Distance Judgment between RFID-SIM mobile terminal of the present invention and card reader.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only a part of embodiment of the present invention, rather than whole embodiment.Based on the embodiment in the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that obtains under the creative work prerequisite.
See also Fig. 1, Fig. 1 is the mutual schematic diagram of functional module of RFID-SIM mobile communcations system the first embodiment of the present invention, and described RFID-SIM mobile communcations system comprises RFID-SIM mobile terminal and card reader.
Described card reader comprises first signal generator, first signal detector and microprocessing unit.Described microprocessing unit comprises signal intensity-metrics calculation unit.Described RFID-SIM mobile terminal comprises secondary signal detector, secondary signal generator and controller.
The first signal generator transmitted signal of described card reader, the secondary signal detector of described RFID-SIM mobile terminal is surveyed the signal that described first signal generator sends.
Described controller is controlled described secondary signal generator transmitted signal, and the first signal detector of described card reader is surveyed the signal that described secondary signal generator sends.
Described card reader receives the signal that the RFID-SIM mobile terminal sends, and described signal intensity-distance is calculated module according to the signal intensity described RFID-SIM mobile terminal of calculating of described signal and the distance between card reader.Wherein, described signal intensity-distance calculating module is that linear signal intensity-distance is calculated module.
See also Fig. 2, Fig. 2 is the mutual schematic diagram of functional module of RFID-SIM mobile communcations system the second embodiment of the present invention, and described RFID-SIM mobile communcations system comprises RFID-SIM mobile terminal and card reader.
Described card reader comprises first signal generator, first signal detector and microprocessing unit.Described microprocessing unit comprises signal intensity-metrics calculation unit.Described RFID-SIM mobile terminal comprises secondary signal detector, secondary signal generator and controller.
The first signal generator transmitted signal of described card reader, the secondary signal detector of described RFID-SIM mobile terminal is surveyed the signal that described first signal generator sends.
Described controller is controlled described secondary signal generator transmitted signal, and the first signal detector of described card reader is surveyed the signal that described secondary signal generator sends.
Described card reader receives the signal that the RFID-SIM mobile terminal sends, and described signal intensity-distance is calculated module according to the signal intensity described RFID-SIM mobile terminal of calculating of described signal and the distance between card reader.Wherein, described signal intensity-distance calculating module is that nonlinear properties intensity-distance is calculated module.
See also Fig. 3, Fig. 3 is the schematic flow sheet of the method for Distance Judgment between RFID-SIM mobile terminal of the present invention and card reader.Between described RFID-SIM mobile terminal and card reader, the method for Distance Judgment comprises:
Step S1 changes the distance between described RFID-SIM mobile terminal and described card reader, and records described distance;
Step S2, the signal intensity of described card reader received signal when measuring different distance;
Step S3 according to described signal intensity and described distance, sets up signal intensity-distance model;
Step S4 measures new signal intensity, and obtains new distance corresponding to described new signal intensity according to described signal intensity-distance model.
Described signal intensity and described distance are linear, and described signal intensity-distance model is linear model, and the model parameter of described linear model is utilized the linear regression method estimation.
Certainly, described signal intensity also can become nonlinear relationship with described distance, and at this moment, described signal intensity-distance model is nonlinear model, and the model parameter of described nonlinear model is utilized the non-linear regression method estimation.
Wherein, described signal is the signal that electromagnetic wave, sound wave and other intensities change apart from change.
Below illustrate the method for Distance Judgment between RFID-SIM mobile terminal of the present invention and card reader.
(1) the RFID-SIM mobile terminal is placed on respectively from the different distance of card reader, and a series of positional distance h of accurate measuring
1, h
2, h
3... .., h
n
(2) utilize the described first signal detector of described card reader to obtain the RFID-SIM mobile terminal when diverse location, the signal intensity q that described card reader is received
1, q
2, q
3... .., q
n
(3) under the hypothesis of linear model, signal intensity and distance are built linear model, and utilize linear regression method estimation PARAMETERS IN THE LINEAR MODEL;
Perhaps, under the hypothesis of nonlinear model, signal intensity and distance are built nonlinear model, and utilize non-linear regression method estimation PARAMETERS IN THE LINEAR MODEL;
(4) be q when detecting new signal intensity
x, utilize described linear model or described nonlinear model to estimate distance h between RFID-SIM mobile terminal and card reader
x
The method utilization of RFID-SIM mobile communcations system of the present invention and Distance Judgment thereof is set up signal intensity-distance model and is carried out Distance Judgment between RFID-SIM mobile terminal and card reader, has improved the accuracy of RFID-SIM mobile payment aspect distance estimations.
The above is only embodiments of the invention; not thereby limit the scope of the claims of the present invention; every equivalent structure or equivalent flow process conversion that utilizes instructions of the present invention and accompanying drawing content to do; or directly or indirectly be used in other relevant technical fields, all in like manner be included in scope of patent protection of the present invention.
Claims (9)
1. the method for Distance Judgment between a RFID-SIM mobile terminal and card reader, is characterized in that, comprising:
Change the distance between described RFID-SIM mobile terminal and described card reader, and record described distance;
The signal intensity of described card reader received signal when measuring different distance;
According to described signal intensity and described distance, set up signal intensity-distance model;
Measure new signal intensity, and obtain new distance corresponding to described new signal intensity according to described signal intensity-distance model.
2. the method for Distance Judgment between RFID-SIM mobile terminal according to claim 1 and card reader, is characterized in that, described signal intensity and described distance are linear, and described signal intensity-distance model is linear model.
3. the method for Distance Judgment between RFID-SIM mobile terminal according to claim 2 and card reader, is characterized in that, the model parameter of described linear model is utilized the linear regression method estimation.
4. the method for Distance Judgment between RFID-SIM mobile terminal according to claim 1 and card reader, is characterized in that, it is nonlinear model that described signal intensity becomes nonlinear relationship, described signal intensity-distance model with described distance.
5. the method for Distance Judgment between RFID-SIM mobile terminal according to claim 4 and card reader, is characterized in that, the model parameter of described nonlinear model is utilized the non-linear regression method estimation.
6. the method for Distance Judgment between RFID-SIM mobile terminal according to claim 1 and card reader, is characterized in that, described signal is the signal that electromagnetic wave, sound wave and other intensities change apart from change.
7. RFID-SIM mobile communcations system, comprise RFID-SIM mobile terminal and card reader, it is characterized in that, described card reader comprises microprocessing unit, described microprocessing unit comprises signal intensity-distance calculating module, described card reader receives the signal that the RFID-SIM mobile terminal sends, and described signal intensity-distance is calculated module according to the signal intensity described RFID-SIM mobile terminal of calculating of described signal and the distance between card reader.
8. RFID-SIM mobile communcations system according to claim 7, it is characterized in that, described card reader further comprises first signal generator and first signal detector, described RFID-SIM mobile terminal comprises secondary signal generator and secondary signal detector, described first signal generator transmitted signal, described secondary signal detector is surveyed the signal that described first signal generator sends, described secondary signal generator sends described signal to described first signal detector, and described first signal detector is surveyed the signal that described secondary signal generator sends.
9. RFID-SIM mobile communcations system according to claim 8, is characterized in that, described RFID-SIM mobile terminal further comprises controller, and described controller is controlled described secondary signal generator transmitted signal.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201110338211 CN103091670A (en) | 2011-10-31 | 2011-10-31 | Radio frequency identification device (RFID)-subscriber identity module (SIM) mobile communication system and method of distance judgment of RFID-SIM mobile communication |
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| CN 201110338211 CN103091670A (en) | 2011-10-31 | 2011-10-31 | Radio frequency identification device (RFID)-subscriber identity module (SIM) mobile communication system and method of distance judgment of RFID-SIM mobile communication |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105491590A (en) * | 2014-09-15 | 2016-04-13 | 联想(北京)有限公司 | Information processing method and electronic equipment |
| CN108957398A (en) * | 2018-07-20 | 2018-12-07 | 上海麦士信息技术有限公司 | Wireless device distance measuring method based on linear regression and received signal strength indicator |
| CN112862995A (en) * | 2020-12-30 | 2021-05-28 | 广东科裕智能科技有限公司 | Dormitory management method, dormitory management system and storage medium thereof |
-
2011
- 2011-10-31 CN CN 201110338211 patent/CN103091670A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105491590A (en) * | 2014-09-15 | 2016-04-13 | 联想(北京)有限公司 | Information processing method and electronic equipment |
| CN108957398A (en) * | 2018-07-20 | 2018-12-07 | 上海麦士信息技术有限公司 | Wireless device distance measuring method based on linear regression and received signal strength indicator |
| CN112862995A (en) * | 2020-12-30 | 2021-05-28 | 广东科裕智能科技有限公司 | Dormitory management method, dormitory management system and storage medium thereof |
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Application publication date: 20130508 |