CN104678357A - Positioning method, terminal and positioning system - Google Patents
Positioning method, terminal and positioning system Download PDFInfo
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- CN104678357A CN104678357A CN201310628327.9A CN201310628327A CN104678357A CN 104678357 A CN104678357 A CN 104678357A CN 201310628327 A CN201310628327 A CN 201310628327A CN 104678357 A CN104678357 A CN 104678357A
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- transmit leg
- radiofrequency signal
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- identification information
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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
- G01S1/00—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith
- G01S1/02—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith using radio waves
- G01S1/08—Systems for determining direction or position line
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Position Fixing By Use Of Radio Waves (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The invention discloses a positioning method, a terminal and a positioning system. The positioning method comprises the steps that the terminal receives an external radio-frequency signal and determines a distance to a transmitter of the radio-frequency signal according to the radio-frequency transmitter; the terminal acquires position information of the transmitter of the radio-frequency signal; the terminal determines position information of the terminal according to the position information of the transmitter of the radio-frequency signal and the calculated distance. The terminal comprises a receiving module for receiving the external radio-frequency signal; a distance determination module for determining the distance to the transmitter of the radio-frequency signal according to the radio-frequency signal received by the receiving module; an acquisition module for acquiring the position information of the transmitter of the radio-frequency signal; a position determination module for determining the position information of the terminal according to the position information of the transmitter of the radio-frequency signal and the calculated distance. By adopting the technical scheme, the invention solves the problem that the positioning accuracy is not high enough in the prior art.
Description
Technical field
The present invention relates to electronic device field, particularly relate to a kind of localization method, terminal and positioning system.
Background technology
Along with developing rapidly of development of Mobile Internet technology, and intelligent mobile terminal equipment is a large amount of universal, and various location Based service (Location Based Service, referred to as LBS) is widely used.On intelligent mobile terminal, typical location Based service is as map and navigation, terminal obtains the mode of positional information, mainly by Global Positioning System (GPS) (Global Position System, referred to as GPS), base station coordinates in cellular communications networks, and WIFI access point coordinate etc.Wherein civilian gps signal can realize in the exterior space location that precision is 10 meters, then almost cannot accurately locate in the interior space.By the base station coordinates in cellular communications networks and WIFI access point coordinate, the location that precision is 100 meters can only be realized, and the same impact be very easy to by fabric structure.
And merge further along with living under mobile Internet and the daily line of people, the precision that people serve for indoor positioning is had higher requirement.In a large-scale shopping center, accurate indoor positioning can help client to find its required commodity bought fast; Market also can push the commodity favor information in this region to the client within the scope of indoor specific region in addition, reaches the object of precision marketing.Under the emergency circumstance such as fire, accurate indoor positioning can help rescue personnel to find position residing for personnel to be rescued fast, effectively implements relief.
Summary of the invention
The invention provides a kind of localization method, terminal and positioning system, solve the accurate not problem of targeting scheme in prior art.
For solving the problems of the technologies described above, the present invention by the following technical solutions:
A kind of localization method, comprises the following steps: terminal receives external radio-frequency signal, determines the distance between the transmit leg of this radiofrequency signal according to this radiofrequency signal; And obtain the positional information of the transmit leg of this radiofrequency signal; Terminal is according to the positional information of the transmit leg of this radiofrequency signal and the distance determination own location information that calculates.
Further, the identification information of the transmit leg of this radiofrequency signal is carried in this radiofrequency signal; Terminal obtains the positional information of the transmit leg of this radiofrequency signal according to this identification information.
Further, the positional information that terminal obtains the transmit leg of this radiofrequency signal according to this identification information comprises:
Terminal is according to this identification information, and the corresponding relation of the identification information preset of terminal local and positional information obtains the positional information of the transmit leg of this radiofrequency signal;
Or this identification information is sent to third party by terminal, and receive the positional information of third party according to the transmit leg of this radiofrequency signal of this identification information feedback.
Further, determine that the distance between the transmit leg of this radiofrequency signal comprises according to this radiofrequency signal:
Compare the phase differential of magnetic signal and electric signal in this radiofrequency signal;
The distance between the transmit leg of this radiofrequency signal is determined according to the phase differential compared.
A kind of terminal, comprising: receiver module, for receiving external radio-frequency signal; Distance determination module, this radiofrequency signal for receiving according to receiver module determines the distance between the transmit leg of this radiofrequency signal; Acquisition module, for obtaining the positional information of the transmit leg of this radiofrequency signal; And position determination module, for positional information and the distance determination own location information that calculates of the transmit leg according to this radiofrequency signal.
Further, this terminal also comprises:
Parsing module, for resolving the identification information of the transmit leg of this radiofrequency signal from this radiofrequency signal;
Acquisition module is specifically for obtaining the positional information of the transmit leg of this radiofrequency signal according to this identification information.
Further, acquisition module comprises inquiry submodule, and for according to this identification information, and the corresponding relation of the identification information preset of terminal local and positional information obtains the positional information of the transmit leg of this radiofrequency signal;
Or acquisition module comprises transmission submodule and receives submodule, send submodule and be used for this identification information to send to third party, reception submodule is for receiving the positional information of third party according to the transmit leg of this radiofrequency signal of this identification information feedback.
Further, distance determination module comprises: comparison sub-module, for comparing the phase differential of magnetic signal and electric signal in this radiofrequency signal that receiver module receives; Distance determines submodule, and the phase differential for comparing according to comparison sub-module determines the distance between the transmit leg of this radiofrequency signal.
Further, the phase differential compared is transferred to distance by a kind of mode in voltage, electric current, resistance value, digital signal, sound signal and determines submodule by comparison sub-module.
Further, the frequency of operation of receiver module is 13.56MHz.
A kind of positioning system, comprises transmit leg, and the terminal as take over party described in above-mentioned any one; The outer emitting radio frequency signal of sending direction; Terminal receives external radio-frequency signal, determines the distance between transmit leg according to this radiofrequency signal, obtains the positional information of transmit leg, and according to the positional information of transmit leg and the distance determination own location information that calculates.
Further, this positioning system also comprises third party, and terminal also for the identification information of the transmit leg carried in this radiofrequency signal is sent to third party, and receives the positional information of the transmit leg of third party's feedback; Third party, for receiving this identification information, obtains the positional information of transmit leg, and feeds back to terminal according to the corresponding relation of this identification information and default identification information and positional information.
Further, the reader of transmit leg to be frequency of operation be 13.56MHz; Third party is background server, is preset with the identification information of each reader and the corresponding relation of positional information in its range of management in background server; Terminal is mobile terminal.
Localization method provided by the invention, terminal and positioning system, terminal utilizes the positional information determination own location information of the transmit leg of radiofrequency signal and this radiofrequency signal received, the location in the communication distance of radiofrequency signal can be realized, improve the positioning precision of existing targeting scheme, and be especially applicable to indoor positioning.Can by the 13.56MHz beacon equipment extensively existed in existing commercial location, office buildings, the radiofrequency signal sent as 13.56MHzPOS and gate inhibition's read write line etc. carries out accurately location, indoor, and greatly simplify the deployment of indoor positioning.
Accompanying drawing explanation
The process flow diagram of the localization method that Fig. 1 provides for one embodiment of the invention;
The schematic diagram of the terminal that Fig. 2 provides for one embodiment of the invention;
The schematic diagram of the positioning system that Fig. 3 provides for one embodiment of the invention;
The schematic diagram of the positioning system that Fig. 4 provides for another embodiment of the present invention;
The process flow diagram of the localization method that Fig. 5 provides for another embodiment of the present invention.
Embodiment
By reference to the accompanying drawings the present invention is described in further detail below by embodiment.
The process flow diagram of the localization method that Fig. 1 provides for one embodiment of the invention, as shown in Figure 1, comprises following flow process:
S101, terminal receive external radio-frequency signal, determine the distance between the transmit leg of this radiofrequency signal according to this radiofrequency signal; And obtain the positional information of the transmit leg of this radiofrequency signal.
The transmit leg of radiofrequency signal can be arbitrary in application scenarios can the equipment of emitting radio frequency signal, especially indoor can the equipment of emitting radio frequency signal.The frequency preferably 500KHz to 50MHz of radiofrequency signal, that more excellent is 13.56MHz.The coverage of radiofrequency signal can be that radius is the regional extent of 0m to 15m centered by the transmit leg of radiofrequency signal, or centered by the transmit leg of radiofrequency signal, radius is the regional extent of 0m to 8m.
The mode of the distance between the transmit leg of this radiofrequency signal is determined according to this radiofrequency signal, preferably, the phase differential of magnetic signal and electric signal in this radiofrequency signal of reception is compared by phase comparator, phase differential is transferred to distance detector in a kind of mode in voltage, electric current, resistance value, digital signal, sound signal, distance detector, according to the corresponding relation of this phase differential and default phase differential and distance, determines the distance between the transmit leg of this radiofrequency signal.
The mode obtaining the positional information of the transmit leg of this radiofrequency signal including, but not limited to: if the known transmit leg of terminal, then the direct positional information obtaining transmit leg from local or third party; Another kind of mode is, carries the identification information of this transmit leg in this radiofrequency signal that transmit leg sends; After terminal receives the identification information of transmit leg, obtain the positional information of this transmit leg from local or third party according to this identification information.The mode that to obtain the positional information of this transmit leg according to this identification information from local or third party is including, but not limited to the corresponding relation presetting this identification information and positional information in terminal local or third party, terminal is according to this identification information, and local this corresponding relation preset of inquiry obtains the positional information of transmit leg; Or this identification information is sent to third party by terminal, and receive the positional information of third party according to the transmit leg of this identification information feedback.
S102, terminal are according to the positional information of the transmit leg of this radiofrequency signal and the distance determination own location information that calculates.
Terminal can rely on a transmit leg to realize self poisoning, also multiple transmit leg can be relied on to realize self poisoning, if rely on a transmit leg to realize self poisoning, then terminal self-position with the positional information of this transmit leg for the center of circle, with the distance calculated for radius circumferentially.If rely on multiple transmit leg to realize self poisoning, then terminal receives the radiofrequency signal that multiple transmit leg sends, calculate the distance between terminal and its transmit leg according to each radiofrequency signal, terminal self-position is on the intersection point of the circle being radius for the center of circle with the distance between the terminal calculated and this transmit leg with the positional information of each transmit leg.
The schematic diagram of the terminal that Fig. 2 provides for one embodiment of the invention, as shown in Figure 2, terminal 2 comprises receiver module 21, distance determination module 22, acquisition module 23 and position determination module 24, and wherein, receiver module 21 is for receiving external radio-frequency signal; Distance determination module 22 determines the distance between the transmit leg of this radiofrequency signal for this radiofrequency signal received according to receiver module 21; Acquisition module 23 is for obtaining the positional information of the transmit leg of this radiofrequency signal; Position determination module 24 is for the positional information of the transmit leg according to this radiofrequency signal and the distance determination own location information that calculates.
In certain embodiments, also comprise parsing module 25, for resolving the identification information of the transmit leg of this radiofrequency signal in the radiofrequency signal that receives from receiver module 21; And acquisition module 23 obtains the positional information of the transmit leg of this radiofrequency signal specifically for this identification information parsed according to parsing module 25.In certain embodiments, acquisition module 23 comprises inquiry submodule 231, and the identification information preset for this identification information of parsing according to parsing module 25 and terminal 2 this locality and the corresponding relation of positional information obtain the positional information of the transmit leg of this radiofrequency signal; And/or, acquisition module 23 comprises transmission submodule 232 and receives submodule 233, sending submodule 232 and send to third party for this identification information parsed by parsing module 25, receiving submodule 233 for receiving the positional information of third party according to the transmit leg of this radiofrequency signal of this identification information feedback.
In certain embodiments, distance determination module 22 comprises comparison sub-module 221 and distance determines submodule 222, and wherein, comparison sub-module 221, for comparing the phase differential of magnetic signal and electric signal in this radiofrequency signal that receiver module 21 receives; Distance determines submodule 222, and the phase differential for comparing according to comparison sub-module 221 determines the distance between the transmit leg of this radiofrequency signal.In certain embodiments, comparison sub-module 221 exports phase differential to distance by a kind of mode in voltage, electric current, resistance value, digital signal, sound signal and determines submodule 222.
In certain embodiments, terminal 2 is mobile terminal, such as mobile phone, PAD etc.Preferably, the frequency of operation of receiver module 21 is 13.56MHz.In certain embodiments, the reader of the transmit leg of radiofrequency signal that terminal 2 receives to be frequency of operation be 13.56MHz.In certain embodiments, third party is background server, is preset with the identification information of each reader and the corresponding relation of positional information in its range of management in background server.
The schematic diagram of the positioning system that Fig. 3 provides for one embodiment of the invention, as shown in Figure 3, positioning system 3 comprises transmit leg, and the terminal 2 as take over party described in above-mentioned any embodiment; Transmit leg can be arbitrary in application scenarios can the equipment of emitting radio frequency signal, especially indoor can the equipment of emitting radio frequency signal.Transmit leg is used for outside emitting radio frequency signal, and the frequency preferably 500KHz to 50MHz of this radiofrequency signal, that more excellent is 13.56MHz.The coverage of radiofrequency signal can be that radius is the regional extent of 0m to 15m centered by the transmit leg of radiofrequency signal, or centered by the transmit leg of radiofrequency signal, radius is the regional extent of 0m to 8m.Terminal 22 receives external radio-frequency signal, determines the distance between transmit leg according to this radiofrequency signal, obtains the positional information of transmit leg, and according to the positional information of transmit leg and the distance determination own location information that calculates.
The schematic diagram of the positioning system that Fig. 4 provides for another embodiment of the present invention, as shown in Figure 4, with positioning system shown in Fig. 3 unlike, also comprise third party, third party is preset with the identification information of transmit leg and the corresponding relation of positional information; Terminal 2 for the identification information of the transmit leg carried in this radiofrequency signal is sent to third party, and receives the positional information of the transmit leg of third party's feedback; Third party, also for receiving this identification information, obtaining the positional information of transmit leg, and feeding back to terminal 2 according to the corresponding relation of this identification information and default identification information and positional information.
Suppose that transmit leg is that in a market, frequency of operation is the radio-frequency card reader of 13.56MHz, terminal is the mobile terminal that client carries with, third party is the background server in market, is preset with the identification information of each reader in its range of management and the corresponding relation of reader installation site information in background server.As shown in Figure 5, the pinpoint flow process of mobile terminal is realized as follows:
In S501, market, the reader timing of each 13.56MHz or outside transmission in real time comprise the radiofrequency signal of self identification information.
Receiver module in the mobile terminal that S502, client carry receives this radiofrequency signal that arbitrary reader sends.
The comparison sub-module (being such as phase comparator) of S503, mobile terminal compares the phase differential of magnetic signal and electric signal in this radiofrequency signal, and converts the distance determination submodule that the modes such as voltage, electric current, resistance value, digital signal, sound signal export mobile terminal to.
Meanwhile, the parsing module of mobile terminal is resolved the identification information of the reader carried in this radiofrequency signal and is exported to the transmission submodule of mobile terminal.
Voltage, electric current, resistance value, digital signal, sound signal etc. that the distance determination submodule of S504, mobile terminal exports according to comparison sub-module determine the distance between itself and this reader.
Meanwhile, the identification information that parsing module parses by the transmission submodule of mobile terminal sends to the background server in market.Mobile terminal communicates by cellular mobile communication networks with background server, such as 2G, 3G, 4G cordless communication network.
S505, background server, according to this identification information, inquire reader installation site information corresponding to this identification information the identification information of each reader and the corresponding relation of reader installation site information in the range of management that it is preset.And send to mobile terminal.
S506, mobile terminal, according to reader installation site information and the distance between self and this reader that calculates, determine own location information.
The present embodiment utilizes the phase comparator on mobile terminal, can distance between Accurate Measurement mobile terminal and 13.56MHz reader, and in conjunction with the positional information of reader, achieves the accurate indoor positioning of mobile terminal.13.56MHz reader is extensively present in existing commercial location, office buildings, thus greatly simplify the deployment of indoor positioning, possesses very high using value.
Above content is in conjunction with concrete embodiment further description made for the present invention, can not assert that specific embodiment of the invention is confined to these explanations.For general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, some simple deduction or replace can also be made,
All should be considered as belonging to protection scope of the present invention.
Claims (13)
1. a localization method, is characterized in that, comprises the following steps:
Terminal receives external radio-frequency signal, determines the distance between the transmit leg of this radiofrequency signal according to this radiofrequency signal; And obtain the positional information of the transmit leg of this radiofrequency signal;
Terminal is according to the positional information of the transmit leg of this radiofrequency signal and the distance determination own location information that calculates.
2. localization method as claimed in claim 1, is characterized in that, carry the identification information of the transmit leg of this radiofrequency signal in this radiofrequency signal; Terminal obtains the positional information of the transmit leg of this radiofrequency signal according to this identification information.
3. localization method as claimed in claim 2, it is characterized in that, terminal obtains the transmit leg of this radiofrequency signal positional information according to this identification information comprises:
Terminal is according to this identification information, and the corresponding relation of the identification information preset of terminal local and positional information obtains the positional information of the transmit leg of this radiofrequency signal;
Or this identification information is sent to third party by terminal, and receive the positional information of third party according to the transmit leg of this radiofrequency signal of this identification information feedback.
4. the localization method as described in any one of claims 1 to 3, is characterized in that, determines that the distance between the transmit leg of this radiofrequency signal comprises according to this radiofrequency signal:
Compare the phase differential of magnetic signal and electric signal in this radiofrequency signal;
The distance between the transmit leg of this radiofrequency signal is determined according to the phase differential compared.
5. a terminal, is characterized in that, comprising:
Receiver module, for receiving external radio-frequency signal;
Distance determination module, this radiofrequency signal for receiving according to receiver module determines the distance between the transmit leg of this radiofrequency signal;
Acquisition module, for obtaining the positional information of the transmit leg of this radiofrequency signal;
Position determination module, for positional information and the distance determination own location information that calculates of the transmit leg according to this radiofrequency signal.
6. terminal as claimed in claim 5, is characterized in that, also comprise:
Parsing module, for resolving the identification information of the transmit leg of this radiofrequency signal from this radiofrequency signal;
Acquisition module is specifically for obtaining the positional information of the transmit leg of this radiofrequency signal according to this identification information.
7. terminal as claimed in claim 6, it is characterized in that, acquisition module comprises inquiry submodule, and for according to this identification information, and the corresponding relation of the identification information preset of terminal local and positional information obtains the positional information of the transmit leg of this radiofrequency signal;
Or acquisition module comprises transmission submodule and receives submodule, send submodule and be used for this identification information to send to third party, reception submodule is for receiving the positional information of third party according to the transmit leg of this radiofrequency signal of this identification information feedback.
8. terminal as claimed in claim 5, is characterized in that, distance determination module comprises:
Comparison sub-module, for comparing the phase differential of magnetic signal and electric signal in this radiofrequency signal that receiver module receives;
Distance determines submodule, and the phase differential for comparing according to comparison sub-module determines the distance between the transmit leg of this radiofrequency signal.
9. terminal as claimed in claim 8, it is characterized in that, the phase differential compared is transferred to distance by a kind of mode in voltage, electric current, resistance value, digital signal, sound signal and determines submodule by comparison sub-module.
10. the terminal as described in any one of claim 5 to 9, is characterized in that, the frequency of operation of receiver module is 13.56MHz.
11. 1 kinds of positioning systems, is characterized in that, comprise transmit leg, and the terminal as take over party as described in any one of claim 5 to 10; The outer emitting radio frequency signal of sending direction; Terminal receives external radio-frequency signal, determines the distance between transmit leg according to this radiofrequency signal, obtains the positional information of transmit leg, and according to the positional information of transmit leg and the distance determination own location information that calculates.
12. positioning systems as claimed in claim 11, is characterized in that, also comprise third party, and terminal also for the identification information of the transmit leg carried in this radiofrequency signal is sent to third party, and receives the positional information of the transmit leg of third party's feedback; Third party, for receiving this identification information, obtains the positional information of transmit leg, and feeds back to terminal according to the corresponding relation of this identification information and default identification information and positional information.
13. positioning systems as claimed in claim 12, is characterized in that, the reader of transmit leg to be frequency of operation be 13.56MHz; Third party is background server, is preset with the identification information of each reader and the corresponding relation of positional information in its range of management in background server; Terminal is mobile terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201310628327.9A CN104678357A (en) | 2013-11-28 | 2013-11-28 | Positioning method, terminal and positioning system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310628327.9A CN104678357A (en) | 2013-11-28 | 2013-11-28 | Positioning method, terminal and positioning system |
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| CN104678357A true CN104678357A (en) | 2015-06-03 |
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| CN201310628327.9A Pending CN104678357A (en) | 2013-11-28 | 2013-11-28 | Positioning method, terminal and positioning system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105142105A (en) * | 2015-07-22 | 2015-12-09 | 上海迈外迪网络科技有限公司 | Wireless network service providing method, device and system and wireless router |
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