CN105025569A - Indoor positioning method, system and apparatus - Google Patents
Indoor positioning method, system and apparatus Download PDFInfo
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Abstract
The embodiment of the invention provides an indoor positioning method, system and apparatus. The method comprises: determining the deviation value between the signal intensity of a first network signal, and the signal intensity of a second network signal through obtaining the signal intensity of a first network signal, and the signal intensity of a second network received by a user terminal at an antenna point; matching the obtained deviation value with fixed deviation values in a first preset list keeping corresponding relations between fixed deviation values and antenna points; and when the deviation value corresponding to the user terminal matches a deviation value in the first preset list, setting the position information of the antenna point corresponding to the matched fixed deviation value as the position information of the user terminal. Accordingly, the indoor positioning method, system and apparatus reduce the cost of positioning the user terminal indoors, and improve the accuracy of positioning the terminal indoors in a certain degree.
Description
Technical field
The present invention relates to communication technical field, particularly relate to a kind of method, system and device of indoor positioning.
Background technology
Current outdoor location technology mainly uses global position system, as BEI-DOU position system, and mobile base station assist location.Its location must rely on the radiofrequency signal of multiple satellite-signal or multiple base station the time of advent difference position calculating, but under indoor environment owing to receiving satellite-signal thus outdoor positioning technology cannot play its effect.
In order to realize indoor positioning, therefore REID is just introduced (English: Radio FrequencyIdentification is called for short: RFID), that is: by the multiple positioning signal source of indoor deployment or framing signal label, thus the intensity similar with outdoor positioning or time-delay calculation mode is utilized to position indoor user.
Although REID can position indoor user, but the method for this location needs to dispose a large amount of positioning signal sources, cannot realize location in the place not disposing positioning signal source, so not only make the cost of indoor positioning higher, and the accuracy of location is also lower.
Summary of the invention
The invention provides a kind of method, system and device of indoor positioning, adopt RFID technique to cause indoor positioning cost higher in order to solve in prior art, and the problem that Position location accuracy is also lower.
Its concrete scheme is as follows:
A method for indoor positioning, described method is applied in indoor distributed system, and the antenna point in described indoor distributed system is distributed in indoor different position, and described method comprises:
The signal strength signal intensity obtaining the first network signal that the user terminal under antenna point receives and the signal strength signal intensity of second network signal received, determine the deviate between the signal strength signal intensity of described first network signal and the signal strength signal intensity of second network signal;
Described deviate is mated with the droop value in first the presets list saving droop value and antenna point corresponding relation;
If when the deviate of user terminal is mated with the droop value in described first the presets list, then the positional information of antenna point corresponding for described droop value is orientated as the positional information of described user terminal.
Optionally, before the signal strength signal intensity of the first network signal received at the user terminal obtained under antenna point and the signal strength signal intensity of second network signal that receives, also comprise:
Obtain the droop value of each antenna point in described indoor distributed system, difference between the signal strength signal intensity of the second network signal that the intensity of the first network signal that described droop value is launched for described antenna point and described antenna point are launched;
Determine the positional information of each antenna point in described indoor distributed system, and generate described first the presets list preserving the positional information of the described antenna point droop value corresponding with described antenna point.
Optionally, before the signal strength signal intensity of the first network signal received at the user terminal obtained under antenna point and the signal strength signal intensity of second network signal that receives, also comprise:
Obtain the positional information of the current location of user terminal in the region that antenna point covers, and obtain the fixed character envelope of described user terminal in current position, contain described user terminal in described fixed character envelope and receive the first network signal that sent by different path and signal strength signal intensity corresponding to second network signal and signal time delay;
Generate second the presets list preserving the positional information of the described user terminal fixed character envelope corresponding with described positional information.
Optionally, if when the deviate of user terminal is mated with the droop value in described first the presets list, then the positional information of antenna point corresponding for described droop value is orientated as the positional information of described user terminal, comprising:
If when the deviate of user terminal is mated with the droop value in described first the presets list, obtain the characteristic envelope of described user terminal;
The characteristic envelope of acquisition is mated with the fixed character envelope in described second the presets list;
If when the characteristic envelope obtained mates with the fixed character envelope in described second the presets list, positional information corresponding for the described fixed character envelope matched is defined as the positional information of user terminal.
A system for indoor positioning, comprising:
First acquisition module, the signal strength signal intensity of the first network signal received for the user terminal obtained under antenna point and the signal strength signal intensity of second network signal received, determine the deviate between the signal strength signal intensity of described first network signal and the signal strength signal intensity of second network signal;
Matching module, for mating described deviate with the droop value in first the presets list saving droop value and antenna point corresponding relation;
Processing module, if when mating with the droop value in described first the presets list for the deviate of user terminal, then orientate the positional information of described user terminal as by the positional information of antenna point corresponding for described droop value.
Optionally, also comprise:
Second acquisition module, for obtaining the droop value of each antenna point in described indoor distributed system, difference between the signal strength signal intensity of the second network signal that the intensity of the first network signal that described droop value is launched for described antenna point and described antenna point are launched;
Generation module, for determining the positional information of each antenna point in described indoor distributed system, and generates described first the presets list preserving the positional information of the described antenna point droop value corresponding with described antenna point.
Optionally, described second acquisition module, also for obtaining the positional information of the current location of user terminal in the region that antenna point covers, and obtain the fixed character envelope of described user terminal in current position, the first network signal sent by different path containing in described fixed character envelope that described user terminal receives and signal strength signal intensity corresponding to second network signal and signal time delay;
Described generation module, also for generating second the presets list of the current location information of the preserving described user terminal fixed character envelope corresponding with described current location information.
Optionally, described processing module, comprising:
Acquiring unit, if when mating with the droop value in described first the presets list for the deviate of user terminal, obtain the characteristic envelope of described user terminal;
Matching unit, for mating the characteristic envelope of acquisition with the fixed character envelope in described second the presets list;
Determining unit, if when the characteristic envelope for obtaining mates with the fixed character envelope in described second the presets list, be defined as the positional information of user terminal by current location information corresponding for the described fixed character envelope matched.
A device for indoor positioning, comprising:
Transducer, the signal strength signal intensity of the first network signal that the user terminal for obtaining under antenna point receives and the signal strength signal intensity of second network signal received;
Processor, for determining the deviate between the signal strength signal intensity of described first network signal and the signal strength signal intensity of second network signal, described deviate is mated with the droop value in first the presets list saving droop value and antenna point corresponding relation, if when the deviate of user terminal is mated with the droop value in described first the presets list, then the positional information of antenna point corresponding for described droop value is orientated as the positional information of described user terminal.
Optionally, described transducer, also for obtaining the droop value of each antenna point in described indoor distributed system, described droop value launches by described antenna point difference between signal strength signal intensity that the intensity of first network signal and described antenna point launch second network signal;
Described processor, also for determining the positional information of each antenna point in described indoor distributed system, and generates described first the presets list preserving the positional information of the described antenna point droop value corresponding with described antenna point.
Optionally, described transducer, also for obtaining the positional information of the current location of user terminal in the region that antenna point covers, and obtain the fixed character envelope of described user terminal in current position, the first network signal sent by different path containing in described fixed character envelope that described user terminal receives and signal strength signal intensity corresponding to second network signal and signal time delay;
Described processor, also for generating second the presets list of the current location information of the preserving described user terminal fixed character envelope corresponding with described current location information.
Optionally, described processor, if when also mating with the droop value in described first the presets list for the deviate of user terminal, obtain the characteristic envelope of described user terminal, the characteristic envelope of acquisition is mated with the fixed character envelope in described second the presets list, if when the characteristic envelope obtained mates with the fixed character envelope in described second the presets list, current location information corresponding for the described fixed character envelope matched is defined as the positional information of user terminal.
The method of a kind of indoor positioning provided in the embodiment of the present invention, the signal strength signal intensity of the first network signal received by the user terminal obtained under antenna point and the signal strength signal intensity of second network signal received, determine the deviate between the signal strength signal intensity of first network signal and the signal strength signal intensity of second network signal, the deviate obtained is mated with the droop value in first the presets list saving droop value and antenna point corresponding relation, if when the deviate that user terminal is corresponding is mated with the droop value in first the presets list, then the positional information of antenna point corresponding for the droop value matched is orientated as the positional information of user terminal.That is in embodiments of the present invention when carrying out indoor positioning to user terminal, do not need specific equipment is installed, but in conjunction with current cordless communication network, then receive the signal strength signal intensity of network signal based on user terminal and orient position residing for user terminal, not only reduce like this to the cost that user terminal positions under indoor situations, and improve the accuracy to user terminal location in indoor environment to a certain extent.
In addition, in embodiments of the present invention after determining the antenna point residing for user terminal, also will obtain user terminal characteristics envelope further, the characteristic envelope of acquisition is comprised with the fixed character in second the presets list and mates, if when the characteristic envelope obtained mates with the fixed character envelope in second the presets list, current location information corresponding for the fixed character envelope matched is defined as the positional information of user terminal, characteristic envelope is herein the signal strength signal intensity and signal time delay that the first network signal sent by different path that receives of user terminal and second network signal are corresponding, that is, the particular location of user terminal under antenna point can be oriented accurately by characteristic envelope.
Accompanying drawing explanation
Fig. 1 is the system configuration schematic diagram of indoor distributed system in the embodiment of the present invention;
Fig. 2 is indoor distributed system topological structure schematic diagram in the embodiment of the present invention;
Fig. 3 is the method flow diagram of a kind of indoor positioning in the embodiment of the present invention;
Fig. 4 is the signal transmission path schematic diagram in the embodiment of the present invention between antenna point and user terminal;
Fig. 5 is the characteristic envelope schematic diagram of a certain position of user terminal under antenna point in the embodiment of the present invention;
Fig. 6 is by coordinate schematic diagram that antenna point positions user terminal in the embodiment of the present invention;
Fig. 7 is the structural representation of the system of a kind of indoor positioning in the embodiment of the present invention;
Fig. 8 is the structural representation of the system of another kind of indoor positioning in the embodiment of the present invention;
Fig. 9 is the structural representation of the device of a kind of indoor positioning in the embodiment of the present invention.
Embodiment
Below by accompanying drawing and specific embodiment, technical solution of the present invention is described in detail.
Embodiment one:
RFID technique is utilized to cause indoor positioning cost higher to the method that user carries out indoor positioning in order to solve in prior art in embodiments of the present invention, and the problem that the accuracy of location is also lower, therefore embodiments provide a kind of method of indoor positioning, the enforcement of the method needs based on home communication network.
Specifically, whole solitary building is covered in order to enable building internal communication network signal, therefore common carrier all can remember that this indoor distributed system is made up of signal source, mixer, power splitter, feeder line and antenna point at building interior administration's indoor distributed system (as shown in Figure 1).
Owing to adding mixer in indoor distributed system, and indoor distributed system can bear different network signals therefore, such as indoor distributed system can carry the network signals such as 2G/3G/4G/WIFI simultaneously, so just make many nets signal of different frequency range be sent to each antenna point through identical indoor distributed system simultaneously.In addition, in order to ensure the coverage effect of indoor distributed system, antenna point spacing is generally no more than 20 meters.
Because indoor section system uses different band transmissions to heterogeneous networks signal, and be subject to device physics properties influence in indoor distributed system, therefore different network signals by the loss of identical power splitter, feeder line or gain not identical yet, when so just making heterogeneous networks signal arrive each antenna point, between the heterogeneous networks signal on each antenna point, just there will be droop value.And this droop value is directly related with the transmission path of the network signal in indoor distributed system.Therefore the droop value that each antenna point is corresponding is just completely not identical.As long as be fixed deviate just can orient corresponding antenna point.
Such as in the indoor distributed system shown in Fig. 2, this indoor distributed system is made up of signal source, mixer, two power splitters, three antenna points and 7 feeder lines, two network signals are transmitted in this indoor distributed system, a network signal is GSM signal, and another network signal is TD signal.Because mixer, power splitter, feeder line are not identical to the frequency attenuation of two network signals, below detailed description GSM signal and the frequency attenuation of TD signal in indoor distributed system:
Attenuation for the first time: GSM signal is transferred to mixer through feeder line 1, and TD signal and feeder line 2 transfer to mixer, for signal strength signal intensity during GSM signal arrival mixer is now: P
(GSM) source-P
(GSM) line 1; For signal strength signal intensity during TD signal arrival mixer be: P
(TD) source-P
(TD) line 2, wherein P
(GSM) sourcefor GSM signal is in the signal strength signal intensity at signal source place, P
(GSM) line 1for the frequency attenuation of GSM signal on feeder line 1; P
(TD) sourcefor TD signal is in the signal strength signal intensity at signal source place, P
(TD) line 2for the frequency attenuation of TD signal on feeder line 2.
Second time attenuation: GSM signal and the attenuation of TD signal in mixer, for the signal strength signal intensity of GSM signal after mixer attenuation be now: P
(GSM) source-P
(GSM) line 1-P
(GSM) close; For the signal strength signal intensity of TD signal after mixer attenuation be: P
(TD) source-P
(TD) line 2-P
(TD) close, wherein, P
(GSM) closefor the frequency attenuation of GSM signal in mixer, P
(TD) closefor the frequency attenuation of TD signal in mixer.
Attenuation for the third time: GSM signal and TD signal transfer to power splitter 1 through feeder line 3 by mixer, for signal strength signal intensity during GSM signal arrival mixer is now: P
(GSM) source-P
(GSM) line 1-P
(GSM) close-P
(GSM) line 3; For signal strength signal intensity during TD signal arrival mixer be: P
(TD) source-P
(TD) line 2-P
(TD) close-P
(TD) line 3, wherein, P
(GSM) line 3for the frequency attenuation of GSM signal on feeder line 3; P
(TD) line 3for the frequency attenuation of TD signal on feeder line 3.
4th attenuation: GSM signal and the TD signal frequency attenuation on power splitter 1, for the signal strength signal intensity of GSM signal after power splitter 1 frequency attenuation is now: P
(GSM) source-P
(GSM) line 1-P
(GSM) close-P
(GSM) line 3-P
(GSM) merit 1; For the signal strength signal intensity of TD signal after power splitter 1 frequency attenuation be: P
(TD) source-P
(TD) line 2-P
(TD) close-P
(TD) line 3-P
(TD) merit 1, wherein, P
(GSM) merit 1for the frequency attenuation of GSM signal on power splitter 1; P
(TD) merit 1for the frequency attenuation of TD signal on power splitter 1.
5th attenuation: GSM signal and TD signal arrive antenna point 1 through feeder line 4, thus the GSM signal strength signal intensity on antenna point 1 is: P
(GSM) source-P
(GSM) line 1-P
(GSM) close-P
(GSM) line 3-P
(GSM) merit 1-P
(GSM) line 4, the TD signal strength signal intensity on antenna point 1 is: P
(TD) source-P
(TD) line 2-P
(TD) close-P
(TD) line 3-P
(TD) merit 1-P
(TD) line 4, wherein, P
(GSM) line 4for the frequency attenuation of GSM signal on feeder line 4; P
(TD) line 4for the frequency attenuation of TD signal on feeder line 4.
6th attenuation: GSM signal and TD signal are transferred to power splitter 2, GSM Signal transmissions through feeder line 5 and to signal strength signal intensity during power splitter 2 are: P
(GSM) source-P
(GSM) line 1-P
(GSM) close-P
(GSM) line 3-P
(GSM) merit 1-P
(GSM) line 5, TD Signal transmissions to signal strength signal intensity during power splitter 2 is: P
(TD) source-P
(TD) line 2-P
(TD) close-P
(TD) line 3-P
(TD) merit 1-P
(TD) line 5, wherein, P
(GSM) line 5for the attenuation of GSM signal on feeder line 5, P
(TD) line 5for the attenuation of TD signal on feeder line 5.
7th attenuation: GSM signal and the TD signal frequency attenuation on power splitter 2, for the signal strength signal intensity of GSM signal after power splitter 2 frequency attenuation is now: P
(GSM) source-P
(GSM) line 1-P
(GSM) close-P
(GSM) line 3-P
(GSM) merit 1-P
(GSM) line 5-P
(GSM) merit 2; For signal strength signal intensity during TD signal arrival mixer be: P
(TD) source-P
(TD) line 2-P
(TD) close-P
(TD) line 3-P
(TD) merit 1-P
(TD) line 5-P
(TD) merit 2, wherein, P
(GSM) merit 2for the frequency attenuation of GSM signal on power splitter 2; P
(TD) merit 2for the frequency attenuation of TD signal on power splitter 2.
8th attenuation: GSM signal and TD signal are transferred to antenna point 2 through feeder line 6, the GSM signal strength signal intensity now on antenna point 2 is: P
(GSM) source-P
(GSM) line 1-P
(GSM) close-P
(GSM) line 3-P
(GSM) merit 1-P
(GSM) line 5-P
(GSM) merit 2-P
(GSM) line 6, TD signal strength signal intensity is: P
(TD) source-P
(TD) line 2-P
(TD) close-P
(TD) line 3-P
(TD) merit 1-P
(TD) line 5-P
(TD) merit 2-P
(TD) line 6.
In like manner, GSM signal and TD signal are transferred to antenna point 3 through feeder line 7, and the GSM signal strength signal intensity now on antenna point 2 is: P
(GSM) source-P
(GSM) line 1-P
(GSM) close-P
(GSM) line 3-P
(GSM) merit 1-P
(GSM) line 5-P
(GSM) merit 2-P
(GSM) line 7, TD signal strength signal intensity is: P
(TD) source-P
(TD) line 2-P
(TD) close-P
(TD) line 3-P
(TD) merit 1-P
(TD) line 5-P
(TD) merit 2-P
(TD) line 7.
By above-mentioned frequency attenuation, the GSM signal on antenna point 1 and the droop value between TD signal are: P
m1=(P
(GSM) source-P
(GSM) line 1-P
(GSM) close-P
(GSM) line 3-P
(GSM) merit 1-P
(GSM) line 4)-(P
(TD) source-P
(TD) line 2-P
(TD) close-P
(TD) line 3-P
(TD) merit 1-P
(TD) line 4);
GSM signal on antenna point 2 and the droop value between TD signal are: P
m2=(P
(GSM) source-P
(GSM) line 1-P
(GSM) close-P
(GSM) line 3-P
(GSM) merit 1-P
(GSM) line 5-P
(GSM) merit 2-P
(GSM) line 6)-(P
(TD) source-P
(TD) line 2-P
(TD) close-P
(TD) line 3-P
(TD) merit 1-P
(TD) line 5-P
(TD) merit 2-P
(TD) line 6);
GSM signal on antenna point 3 and the droop value between TD signal are: P
m3=(P
(GSM) source-p
(GSM) line 1-P
(GSM) close-P
(GSM) line 3-P
(GSM) merit 1-P
(GSM) line 5-P
(GSM) merit 2-P
(GSM) line 7)-(P
(TD) source-P
(TD) line 2-P
(TD) close-P
(TD) line 3-P
(TD) merit 1-P
(TD) line 5-P
(TD) merit 2-P
(TD) line 7);
Such P
m1, P
m2, P
m3and form relation one to one between antenna point 1, antenna point 2, antenna point 3, such one-to-one relationship will be added in first default the presets list, wherein all corresponding respective positional information of antenna point 1, antenna point 2 and antenna point 3.Certainly, only give a comparatively simple indoor distributed system in the above example so that the droop value on antenna point 1, antenna point 2, antenna point 3 to be described, the structure of indoor section system can be more complicated in actual applications, the network signal transmitted also can have multiple, and the structure of indoor distributed system is more complicated in the application of reality, then the droop value difference that each antenna point obtained is corresponding is more obvious.
Based on the one-to-one relationship between the droop value of heterogeneous networks signal and antenna point position, just can locate accurately user terminal, its operating process is as shown in Figure 3, specific as follows:
S301, the signal strength signal intensity obtaining the first network signal that the user terminal under antenna point receives and the signal strength signal intensity of second network signal received, determine the deviate between the signal strength signal intensity of first network signal and the signal strength signal intensity of second network signal;
S302, mates deviate with the droop value in first the presets list saving droop value and antenna point corresponding relation;
S303, if when the deviate of user terminal is mated with the droop value in first the presets list, then orientate the positional information of user terminal as by the positional information of antenna point corresponding for droop value.
Specifically, illustrate the one-to-one relationship between droop value and antenna point in the above-described embodiment, as long as the deviate between each network signal intensity therefore having got user terminal, just directly can orient under which antenna point this user terminal be in, thus just can orient the particular location residing for this user terminal.
Such as: if the signal strength signal intensity first network signal that user terminal is corresponding being detected in a certain indoor distributed system is M
1, that is: GSM network signal strength signal intensity is M
1; The signal strength signal intensity of second network signal is M
2, that is: TD network signal intensity is M
2, now just can determine the deviate between GSM network signal and TD network signal, that is: deviate is P
0=M
1-M
2, the deviation value P then will obtained
0mate with the droop value in the presets list (as shown in table 1) preserved.
| Droop value | Antenna point |
| P M1 | Antenna point 1 |
| P M2 | Antenna point 2 |
| P M3 | Antenna point 3 |
Table 1
If the deviation value P that user terminal is corresponding
0the droop value P corresponding with antenna point 1
m1during coupling, under determining that user terminal is in the position of antenna point 1 correspondence, in indoor environment, user terminal can be oriented so comparatively accurately be in the region that antenna point 1 covers.
In addition, in embodiments of the present invention in order to further promote the accuracy to user terminal location, in embodiments of the present invention after orienting antenna point residing for user terminal, realize accurately locating further user terminal by multipath effect.Wherein, realize as follows to the accurate locate mode of user terminal by multipath effect:
Mode one:
First, when user terminal is under a certain antenna point, the network signal of antenna point can through different path transmissions to user terminal, ratio as shown in Figure 4, in the diagram, the network signal of antenna point can by three different path transmissions to user terminal, and wherein path 1 is linear transmission path, path 2 is the transmission path through 1 secondary reflection, and path 3 is the transmission path through 2 secondary reflections.Because network signal can exist frequency decay after reflection, and different transmission paths result between network signal can exist time delay, certain path different delay is not identical yet, therefore the signal strength signal intensity that this three paths is corresponding, time delay are not identical, in this three paths, each self-corresponding signal strength signal intensity, time delay just constitute the characteristic envelope of user terminal in current position, and the parameter of this characteristic envelope as shown in Figure 5.
Certainly, when user terminal under antenna point is in diverse location, user terminal characteristic of correspondence envelope also will not be identical, as long as therefore get the characteristic envelope of user terminal under antenna point, also just can position the position of user terminal accurately.
In order to orient the position of user terminal under antenna point accurately, therefore needing to collect in advance the characteristic envelope of each position under antenna point, then user terminal being set up a corresponding relation relative to the coordinate position of antenna point and characteristic envelope.The coordinate position of user terminal is the coordinate position of user terminal relative to antenna point herein, this coordinate position can be determined by mode as shown in Figure 6, be that the origin of coordinates sets up coordinate system in figure 6 with antenna point, the region that antenna point covers just can be determined by this coordinate system, and the characteristic envelope corresponding to each position coordinates in the region covered.The coordinate position finally obtained and the corresponding relation of characteristic envelope as shown in table 2:
| Coordinate position | Characteristic envelope |
| (X 1，Y 1) | Characteristic envelope 1 |
| (X 2，Y 2) | Characteristic envelope 2 |
| (X 3，Y 3) | Characteristic envelope 3 |
Table 2
As long as the description of contents stored in table 2 gets user terminal after the characteristic envelope under antenna point, just the accurate location of this user terminal relative to antenna point can be oriented by feature based envelope.
Mode two:
If can get in advance entire building space structure chart and in each layer antenna point distribution, also can be emulated by ray tracing model, the distribution map of signal strength signal intensity in so just can obtaining every layer, in signal strength distribution map, the signal strength signal intensity of the position that distance antenna point is nearer is stronger, and it is more weak away from the signal strength signal intensity of the position of antenna point, after the distribution map obtaining signal strength signal intensity, can after the characteristic envelope obtaining user terminal under antenna point, based on the distribution map determination user terminal of this signal strength signal intensity relative to the particular location of antenna point, so also can realize locating comparatively accurately user terminal.
In addition, mode one can be combined with mode two in embodiments of the present invention, specifically, if can get in advance entire building space structure chart and in each layer antenna point distribution, then can first be emulated by ray tracing model, the distribution map of signal strength signal intensity in obtaining every layer, then based on such distribution map, can occur that ratio carries out manual location in position more frequently to user terminal in every one deck, namely gathered by artificial, then the result collected is kept in background server, can occur that position positions comparatively frequently to user terminal more accurately like this.
Certainly, do not limit in embodiments of the present invention and only use above-mentioned mode to realize the accurate location under antenna point, as long as those skilled in the art are based on the above-mentioned design in the embodiment of the present invention, and the technical scheme obtained without creative work is all in the scope that the present invention comprises.
The method of a kind of indoor positioning provided in the embodiment of the present invention, the signal strength signal intensity of the first network signal received by the user terminal obtained under antenna point and the signal strength signal intensity of second network signal received, determine the deviate between the signal strength signal intensity of first network signal and the signal strength signal intensity of second network signal, the deviate obtained is mated with the droop value in first the presets list saving droop value and antenna point corresponding relation, if when the deviate that user terminal is corresponding is mated with the droop value in first the presets list, then the positional information of antenna point corresponding for the droop value matched is orientated as the positional information of user terminal.That is in embodiments of the present invention when carrying out indoor positioning to user terminal, do not need specific equipment is installed, but in conjunction with current cordless communication network, then receive the signal strength signal intensity of network signal based on user terminal and orient position residing for user terminal, not only reduce like this to the cost that user terminal positions under indoor situations, and improve the accuracy to user terminal location in indoor environment to a certain extent.
In addition, in embodiments of the present invention after determining the antenna point residing for user terminal, also will obtain user terminal characteristics envelope further, the characteristic envelope of acquisition is comprised with the fixed character in second the presets list and mates, if when the characteristic envelope obtained mates with the fixed character envelope in second the presets list, current location information corresponding for the fixed character envelope matched is defined as the positional information of user terminal, characteristic envelope is herein the signal strength signal intensity and signal time delay that the first network signal sent by different path that receives of user terminal and second network signal are corresponding, that is, the particular location of user terminal under antenna point can be oriented accurately by characteristic envelope.
Embodiment two:
Additionally provide a kind of system of indoor positioning in embodiments of the present invention, be illustrated in figure 7 the structural representation of the system of a kind of indoor positioning in the embodiment of the present invention, this system comprises:
First acquisition module 701, the signal strength signal intensity of the first network signal received for the user terminal obtained under antenna point and the signal strength signal intensity of second network signal received, determine the deviate between the signal strength signal intensity of described first network signal and the signal strength signal intensity of second network signal;
Matching module 702, for mating described deviate with the droop value in first the presets list saving droop value and antenna point corresponding relation;
Processing module 703, if when mating with the droop value in described first the presets list for the deviate of user terminal, then orientate the positional information of described user terminal as by the positional information of antenna point corresponding for described droop value.
Further, as shown in Figure 8, the system of the indoor positioning in the embodiment of the present invention also comprises:
Second acquisition module 801, for obtaining the droop value of each antenna point in described indoor distributed system, described droop value launches by described antenna point difference between signal strength signal intensity that the intensity of first network signal and described antenna point launch second network signal;
Generation module 802, described generation module 802 is connected with matching module 702, for determining the positional information of each antenna point in described indoor distributed system, and generate described first the presets list preserving the positional information of the described antenna point droop value corresponding with described antenna point.
Further, second acquisition module 801 in embodiments of the present invention, also for obtaining the current location information of user terminal in the region that antenna point covers, and obtain the fixed character envelope that current location information is corresponding, the first network signal sent by different path containing in described fixed character envelope that described user terminal receives and signal strength signal intensity corresponding to second network signal and signal time delay;
Generation module 802, also for generating second the presets list of the current location information of the preserving described user terminal fixed character envelope corresponding with described current location information.
Based on the system of a kind of indoor positioning shown in Fig. 8, the processing module 703 in the embodiment of the present invention, comprising:
Acquiring unit, if when mating with the droop value in described first the presets list for the deviate of user terminal, obtain the characteristic envelope of described user terminal;
Matching unit, for mating the characteristic envelope of acquisition with the fixed character envelope in described second the presets list;
Determining unit, if when the characteristic envelope for obtaining mates with the fixed character envelope in described second the presets list, be defined as the positional information of user terminal by current location information corresponding for the described fixed character envelope matched.
Embodiment three:
The embodiment of the present invention additionally provides a kind of device of indoor positioning, is illustrated in figure 9 the structural representation of the device of a kind of indoor positioning in the embodiment of the present invention, and this device comprises:
Transducer 901, the signal strength signal intensity of the first network signal that the user terminal for obtaining under antenna point receives and the signal strength signal intensity of second network signal received;
Processor 902, for determining the deviate between the signal strength signal intensity of described first network signal and the signal strength signal intensity of second network signal, described deviate is mated with the droop value in first the presets list saving droop value and antenna point corresponding relation, if when the deviate of user terminal is mated with the droop value in described first the presets list, then the positional information of antenna point corresponding for described droop value is orientated as the positional information of described user terminal.
Further, transducer 901 in embodiments of the present invention, also for obtaining the droop value of each antenna point in described indoor distributed system, described droop value launches by described antenna point difference between signal strength signal intensity that the intensity of first network signal and described antenna point launch second network signal;
Processor 902, also for determining the positional information of each antenna point in described indoor distributed system, and generates described first the presets list preserving the positional information of the described antenna point droop value corresponding with described antenna point.
Further, transducer 901 in embodiments of the present invention, also for obtaining the current location information of user terminal in the region that antenna point covers, and obtain the fixed character envelope that current location information is corresponding, the first network signal sent by different path containing in described fixed character envelope that described user terminal receives and signal strength signal intensity corresponding to second network signal and signal time delay;
Processor 902, also for generating second the presets list of the current location information of the preserving described user terminal fixed character envelope corresponding with described current location information.
Further, in embodiments of the present invention, processor 902, if when also mating with the droop value in described first the presets list for the deviate of user terminal, obtain the characteristic envelope of described user terminal, the characteristic envelope of acquisition is mated with the fixed character envelope in described second the presets list, if when the characteristic envelope obtained mates with the fixed character envelope in described second the presets list, current location information corresponding for the described fixed character envelope matched is defined as the positional information of user terminal.
The present invention describes with reference to according to the flow chart of the method for the embodiment of the present invention, equipment (system) and computer program and/or block diagram.Should understand can by the combination of the flow process in each flow process in computer program instructions realization flow figure and/or block diagram and/or square frame and flow chart and/or block diagram and/or square frame.These computer program instructions can being provided to the processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device to produce a machine, making the instruction performed by the processor of computer or other programmable data processing device produce device for realizing the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.
These computer program instructions also can be stored in can in the computer-readable memory that works in a specific way of vectoring computer or other programmable data processing device, the instruction making to be stored in this computer-readable memory produces the manufacture comprising command device, and this command device realizes the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.
These computer program instructions also can be loaded in computer or other programmable data processing device, make on computer or other programmable devices, to perform sequence of operations step to produce computer implemented process, thus the instruction performed on computer or other programmable devices is provided for the step realizing the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.
Although describe the preferred embodiments of the present invention, those skilled in the art once obtain the basic creative concept of cicada, then can make other change and amendment to these embodiments.So claims are intended to be interpreted as comprising preferred embodiment and falling into all changes and the amendment of the scope of the invention.
Obviously, those skilled in the art can carry out various change and modification to the present invention and not depart from the spirit and scope of the present invention.Like this, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.
Claims (12)
1. a method for indoor positioning, is characterized in that, indoor arrange in indoor distributed system, and the antenna point in described indoor distributed system is distributed in indoor different position, and described method comprises:
The signal strength signal intensity obtaining the first network signal that the user terminal under antenna point receives and the signal strength signal intensity of second network signal received, determine the deviate between the signal strength signal intensity of described first network signal and the signal strength signal intensity of second network signal;
Described deviate is mated with the droop value in first the presets list saving droop value and antenna point corresponding relation;
If when the deviate of user terminal is mated with the droop value in described first the presets list, then the positional information of antenna point corresponding for described droop value is orientated as the positional information of described user terminal.
2. the method for claim 1, is characterized in that, before the signal strength signal intensity of the first network signal received at the user terminal obtained under antenna point and the signal strength signal intensity of second network signal that receives, also comprises:
Obtain the droop value of each antenna point in described indoor distributed system, difference between the signal strength signal intensity of the second network signal that the intensity of the first network signal that described droop value is launched for described antenna point and described antenna point are launched;
Determine the positional information of each antenna point in described indoor distributed system, and generate described first the presets list preserving the positional information of the described antenna point droop value corresponding with described antenna point.
3. the method for claim 1, is characterized in that, before the signal strength signal intensity of the first network signal received at the user terminal obtained under antenna point and the signal strength signal intensity of second network signal that receives, also comprises:
Obtain the positional information of the current location of user terminal in the region that antenna point covers, and obtain the fixed character envelope of described user terminal in current position, contain described user terminal in described fixed character envelope and receive the first network signal that sent by different path and signal strength signal intensity corresponding to second network signal and signal time delay;
Generate second the presets list preserving the positional information of the described user terminal fixed character envelope corresponding with described positional information.
4. method as claimed in claim 3, it is characterized in that, if when the deviate of user terminal is mated with the droop value in described first the presets list, then the positional information of antenna point corresponding for described droop value is orientated as the positional information of described user terminal, comprising:
If when the deviate of user terminal is mated with the droop value in described first the presets list, obtain the characteristic envelope of described user terminal;
The characteristic envelope of acquisition is mated with the fixed character envelope in described second the presets list;
If when the characteristic envelope obtained mates with the fixed character envelope in described second the presets list, positional information corresponding for the described fixed character envelope matched is defined as the positional information of user terminal.
5. a system for indoor positioning, is characterized in that, comprising:
First acquisition module, the signal strength signal intensity of the first network signal received for the user terminal obtained under antenna point and the signal strength signal intensity of second network signal received, determine the deviate between the signal strength signal intensity of described first network signal and the signal strength signal intensity of second network signal;
Matching module, for mating described deviate with the droop value in first the presets list saving droop value and antenna point corresponding relation;
Processing module, if when mating with the droop value in described first the presets list for the deviate of user terminal, then orientate the positional information of described user terminal as by the positional information of antenna point corresponding for described droop value.
6. system as claimed in claim 5, is characterized in that, also comprise:
Second acquisition module, for obtaining the droop value of each antenna point in described indoor distributed system, difference between the signal strength signal intensity of the second network signal that the intensity of the first network signal that described droop value is launched for described antenna point and described antenna point are launched;
Generation module, for determining the positional information of each antenna point in described indoor distributed system, and generates described first the presets list preserving the positional information of the described antenna point droop value corresponding with described antenna point.
7. system as claimed in claim 6, it is characterized in that, described second acquisition module, also for obtaining the positional information of the current location of user terminal in the region that antenna point covers, and obtain the fixed character envelope of described user terminal in current position, the first network signal sent by different path containing in described fixed character envelope that described user terminal receives and signal strength signal intensity corresponding to second network signal and signal time delay;
Described generation module, also for generating second the presets list of the current location information of the preserving described user terminal fixed character envelope corresponding with described current location information.
8. system as claimed in claim 7, its feature is being, described processing module, comprising:
Acquiring unit, if when mating with the droop value in described first the presets list for the deviate of user terminal, obtain the characteristic envelope of described user terminal;
Matching unit, for mating the characteristic envelope of acquisition with the fixed character envelope in described second the presets list;
Determining unit, if when the characteristic envelope for obtaining mates with the fixed character envelope in described second the presets list, be defined as the positional information of user terminal by current location information corresponding for the described fixed character envelope matched.
9. a device for indoor positioning, is characterized in that, comprising:
Transducer, the signal strength signal intensity of the first network signal that the user terminal for obtaining under antenna point receives and the signal strength signal intensity of second network signal received;
Processor, for determining the deviate between the signal strength signal intensity of described first network signal and the signal strength signal intensity of second network signal, described deviate is mated with the droop value in first the presets list saving droop value and antenna point corresponding relation, if when the deviate of user terminal is mated with the droop value in described first the presets list, then the positional information of antenna point corresponding for described droop value is orientated as the positional information of described user terminal.
10. device as claimed in claim 9, it is characterized in that, described transducer, also for obtaining the droop value of each antenna point in described indoor distributed system, described droop value launches by described antenna point difference between signal strength signal intensity that the intensity of first network signal and described antenna point launch second network signal;
Described processor, also for determining the positional information of each antenna point in described indoor distributed system, and generates described first the presets list preserving the positional information of the described antenna point droop value corresponding with described antenna point.
11. devices as claimed in claim 9, it is characterized in that, described transducer, also for obtaining the positional information of the current location of user terminal in the region that antenna point covers, and obtain the fixed character envelope of described user terminal in current position, the first network signal sent by different path containing in described fixed character envelope that described user terminal receives and signal strength signal intensity corresponding to second network signal and signal time delay;
Described processor, also for generating second the presets list of the current location information of the preserving described user terminal fixed character envelope corresponding with described current location information.
12. devices as claimed in claim 11, it is characterized in that, described processor, if when also mating with the droop value in described first the presets list for the deviate of user terminal, obtain the characteristic envelope of described user terminal, the characteristic envelope of acquisition is mated with the fixed character envelope in described second the presets list, if when the characteristic envelope obtained mates with the fixed character envelope in described second the presets list, current location information corresponding for the described fixed character envelope matched is defined as the positional information of user terminal.
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