CN110784819B - Self-adaptive positioning method and terminal - Google Patents
Self-adaptive positioning method and terminal Download PDFInfo
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- CN110784819B CN110784819B CN201910976682.2A CN201910976682A CN110784819B CN 110784819 B CN110784819 B CN 110784819B CN 201910976682 A CN201910976682 A CN 201910976682A CN 110784819 B CN110784819 B CN 110784819B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/02—Services making use of location information
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/02—Services making use of location information
- H04W4/025—Services making use of location information using location based information parameters
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/02—Power saving arrangements
- H04W52/0209—Power saving arrangements in terminal devices
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The invention discloses a self-adaptive positioning method and a terminal, which are used for determining a positioning scene where a mobile device is currently located; if the requirement of the current positioning scene on the positioning response time is high, firstly performing wifi + lbs positioning, and then performing gps positioning; if the requirement of the current positioning scene on positioning response time is low, gps positioning is executed, before gps positioning is executed, whether the displacement of the mobile device is greater than a preset displacement is judged according to signal change of wifi, if yes, gps positioning is executed, otherwise, the last positioning result is used; when gps positioning is executed, gps satellite number and signal value are obtained according to preset time to judge whether the indoor or outdoor environment is judged, and indoor gps positioning is switched to wifi + lbs positioning in advance; the matching positioning mode can be executed according to different positioning scenes on different positioning response time, and the power consumption of the equipment can be reduced while the positioning accuracy is ensured.
Description
Technical Field
The present invention relates to the field of positioning, and in particular, to a self-adaptive positioning method and a terminal.
Background
Along with the development of society, people are more and more used to various location demands, except outdoor gps location, the demand based on indoor location technologies such as bluetooth, wifi, lbs is also more and more extensive, and indoor location scheme has solved the coverage blind area of satellite systems such as the urban area that high-rise woods stood, inside the building, tunnel, underground space, underground pipe gallery, urban rail transit construction.
Various positioning technologies have own applicable places, gps positioning accuracy is high, but the positioning technology can only be used when more than 4 satellites exist outdoors, positioning speed is low, and power consumption is large; the coverage of lbs is wide, the method is suitable for indoor and outdoor, the positioning accuracy depends on a base station, an error of 50-3000 m exists, and the method can only be used for rough positioning; the wifi positioning is between gps and lbs, but has an error of 10-100 meters, and is suitable for indoor and outdoor positioning.
At present, the majority of intelligent equipment is integrated with gps, wifi and mobile network modules, gps, wifi and lbs positioning can be carried out, indoor and outdoor integrated positioning can be basically realized by means of the existing positioning technology, and a plurality of indoor and outdoor positioning self-adaptive seamless switching methods are also provided. However, the switching of the existing positioning mode is usually based on the environment where the intelligent device is located, and the switching is performed to the positioning mode matched with the environment according to the environment where the intelligent device is located, and for the application scene with the requirement of positioning response speed, the determination of the positioning mode is still determined according to the existing mode, that is, the positioning mode corresponding to the different locations where the intelligent device is located is executed, however, there is a problem that the positioning mode determined according to the location where the intelligent device is located cannot meet the application scene needing a quick response positioning result at present, although the positioning of the intelligent device under different location conditions can be met, the requirement that the intelligent device can achieve positioning at different geographic locations can be met, but the requirement of the positioning response speed of different application scenes cannot be met well; and because gps location power consumption is higher, there is the problem that power consumption is greater when prior art carries out gps location.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the self-adaptive positioning method and the terminal can meet the requirement on positioning response speed in different application scenes and improve the positioning flexibility.
In order to solve the technical problems, the invention adopts a technical scheme that:
an adaptive positioning method, comprising the steps of:
s1, determining the current positioning scene of the mobile equipment;
s2, if the requirement of the current positioning scene on the positioning response time is high, firstly performing wifi + lbs positioning, and then performing gps positioning;
s3, if the requirement of the current positioning scene on the positioning response time is low, performing gps positioning;
before gps positioning is executed, whether the displacement of the mobile device is larger than a preset displacement is judged according to signal change of wifi, if yes, gps positioning is executed, and if not, the last positioning result is used.
In order to solve the technical problem, the invention adopts another technical scheme as follows:
an adaptive positioning terminal comprising a memory, a processor and a computer program stored on the memory and executable on the processor, the processor implementing the following steps when executing the computer program;
s1, determining the current positioning scene of the mobile equipment;
s2, if the requirement of the current positioning scene on the positioning response time is high, firstly performing wifi + lbs positioning, and then performing gps positioning;
s3, if the requirement of the current positioning scene on the positioning response time is low, performing gps positioning;
before gps positioning is executed, whether the displacement of the mobile device is larger than a preset displacement is judged according to signal change of wifi, if yes, gps positioning is executed, and if not, the last positioning result is used.
The invention has the beneficial effects that: the positioning scene where the mobile equipment is located is determined, wifi + lbs positioning is firstly executed and then gps positioning is executed for the positioning scene with high positioning response time requirement, a matched positioning mode can be executed according to different positioning scenes for positioning response time, wifi + lbs positioning is firstly executed for the positioning scene with high positioning response time requirement to realize rough positioning, the positioning speed is obviously improved, a user can quickly acquire a positioning result, meanwhile, in order to ensure the positioning precision, the subsequent gps positioning is supplemented on the basis of realizing rough positioning through wifi + lbs positioning, the positioning precision can be ensured on the basis of satisfying the user quickly acquiring the positioning result, the control flexibility of the positioning mode is high, and the requirement on the positioning response speed under different application scenes can also be met, meanwhile, the positioning precision can be ensured on the premise of ensuring the response speed, and the user experience is greatly improved; in addition, before gps positioning is executed, whether the mobile device is subjected to large position change is judged through wifi signal change, if the mobile terminal moves in a very small position, the positioned position data can be directly used, and gps positioning does not need to be executed again, so that the purpose of reducing the power consumption of the mobile device is achieved, and the power consumption of the device is reduced while the positioning accuracy is ensured.
Drawings
Fig. 1 is a flowchart illustrating steps of an adaptive positioning method according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of an adaptive positioning terminal according to an embodiment of the present invention;
fig. 3 is a flowchart illustrating steps of an adaptive positioning method according to a first embodiment of the present invention;
FIG. 4 is a flowchart illustrating the steps of performing gps positioning based on position movement changes according to a second embodiment of the present invention;
FIG. 5 is a flowchart of the steps for performing gps positioning based on indoor and outdoor locations according to a third embodiment of the present invention;
description of reference numerals:
1. an adaptive positioning terminal; 2. a memory; 3. a processor.
Detailed Description
In order to explain technical contents, achieved objects, and effects of the present invention in detail, the following description is made with reference to the accompanying drawings in combination with the embodiments.
Referring to fig. 1, an adaptive positioning method includes the steps of:
s1, determining the current positioning scene of the mobile equipment;
s2, if the requirement of the current positioning scene on the positioning response time is high, firstly performing wifi + lbs positioning, and then performing gps positioning;
s3, if the requirement of the current positioning scene on the positioning response time is low, performing gps positioning;
before gps positioning is executed, whether the displacement of the mobile device is larger than a preset displacement is judged according to signal change of wifi, if yes, gps positioning is executed, and if not, the last positioning result is used.
From the above description, the beneficial effects of the present invention are: the positioning scene where the mobile equipment is located is determined, wifi + lbs positioning is firstly executed and then gps positioning is executed for the positioning scene with high positioning response time requirement, a matched positioning mode can be executed according to different positioning scenes for positioning response time, wifi + lbs positioning is firstly executed for the positioning scene with high positioning response time requirement to realize rough positioning, the positioning speed is obviously improved, a user can quickly acquire a positioning result, meanwhile, in order to ensure the positioning precision, the subsequent gps positioning is supplemented on the basis of realizing rough positioning through wifi + lbs positioning, the positioning precision can be ensured on the basis of satisfying the user quickly acquiring the positioning result, the control flexibility of the positioning mode is high, and the requirement on the positioning response speed under different application scenes can also be met, meanwhile, the positioning precision can be ensured on the premise of ensuring the response speed, and the user experience is greatly improved; in addition, before gps positioning is executed, whether the mobile device is subjected to large position change is judged through wifi signal change, if the mobile terminal moves in a very small position, the positioned position data can be directly used, and gps positioning does not need to be executed again, so that the purpose of reducing the power consumption of the mobile device is achieved, and the power consumption of the device is reduced while the positioning accuracy is ensured.
Further, in the step S3, if the gps positioning data is not obtained within the first preset time, wifi + lbs positioning is performed.
According to the description, when the gps positioning is not successfully executed, the positioning is switched to wifi + lbs positioning, and when the matched positioning mode is executed according to different positioning scenes, the positioning mode can be further switched in time according to the positioning result, so that the positioning mode matched with the current position is realized, and the positioning reliability is ensured.
Further, the method also comprises the following steps:
and when the mobile equipment is powered on or every second preset time, forcibly executing gps positioning.
As can be seen from the above description, when the mobile device is powered on or is forced to perform gps positioning at regular time, the positioning accuracy can be ensured.
Further, it includes to judge whether the displacement of mobile device is greater than preset displacement according to wifi's signal change:
acquiring the intensity of each signal of the current wifi list of the mobile equipment;
comparing the intensity of each signal of the current wifi list with the intensity of each signal of the wifi list stored recently, if the change of the wifi signals with the number larger than the preset number is within the preset power value, determining that the displacement of the mobile device is not larger than the preset displacement, otherwise, determining that the displacement of the mobile device is larger than the preset displacement.
According to the description, whether the mobile device moves in a large position or not can be conveniently and accurately determined by obtaining the current wifi list of the mobile device and the wifi list stored recently and comparing the change of each signal intensity in the two lists.
Further, when it is determined to perform gps positioning, performing gps positioning for a third preset time;
judging whether the mobile equipment is outdoors or not according to the number of satellites of gps and the signal intensity of the satellites after a third preset time, if so, executing gps positioning at a fourth preset time, wherein the fourth preset time is greater than the third preset time; otherwise, the gps positioning is stopped.
As can be seen from the above description, when gps positioning is performed, gps positioning is performed for a short time, and then it is determined whether the mobile device is located outdoors according to the number of gps satellites and the signal strength of the satellites, and if the mobile device is located outdoors, gps positioning may be performed continuously, and at this time, gps positioning may be performed for a longer time, and if the mobile device is located indoors, gps positioning may be directly stopped, so that power consumption of gps is further reduced by reducing the search time during gps positioning.
Further, the performing wifi + lbs positioning includes:
and executing wifi positioning, if the wifi positioning is unsuccessful, using lbs positioning, otherwise, directly using a wifi positioning result as a final positioning result.
As can be seen from the above description, the reliability of positioning is ensured through the cooperation of wifi positioning and lbs positioning.
Further, the first wifi + lbs positioning and the second gps positioning are performed, including:
firstly, wifi + lbs positioning is executed to obtain a first positioning result;
then gps positioning is executed to obtain a second positioning result;
and combining the first positioning result and the second positioning result to be used as a final positioning result.
According to the description, under the positioning scene requiring quick response of the positioning result, the positioning mode of wifi + lbs is preferentially used for realizing efficient positioning, but the positioning mode of wifi + lbs can only be rough positioning, so that the rough positioning result obtained quickly is supplemented through gps positioning subsequently, and the positioning precision is also ensured while the positioning efficiency is ensured.
Referring to fig. 2, an adaptive positioning terminal 1 includes a memory 2, a processor 3, and a computer program stored in the memory 2 and executable on the processor 3, wherein the processor 3 implements the steps of the adaptive positioning method when executing the computer program.
Example one
Referring to fig. 1, an adaptive positioning method includes the steps of:
s1, determining the current positioning scene of the mobile equipment;
s2, if the requirement of the current positioning scene on the positioning response time is high, firstly performing wifi + lbs positioning, and then performing gps positioning;
wherein, the performing wifi + lbs positioning comprises:
firstly, executing wifi positioning, if the wifi positioning is unsuccessful, using lbs positioning, otherwise, directly using a wifi positioning result as a final positioning result;
pure wifi sometimes cannot be successfully located because it relies on a third party wifi localization library; the positioning platform combines wifi and lbs, reports two parameters of wifi and lbs to the positioning platform, positions the positioning platform according to a wifi list, directly uses a wifi positioning result if the positioning is successful, and uses lbs to position if the positioning is unsuccessful;
executing wifi + lbs positioning first, and then executing gps positioning comprises:
firstly, wifi + lbs positioning is executed to obtain a first positioning result;
then gps positioning is executed to obtain a second positioning result;
combining the first positioning result and the second positioning result to be used as a final positioning result;
as the wifi or lbs positioning result can only position a position in a larger range, which is a rough positioning, for example, the subway is displayed as the position of a certain street, and then gps positioning is used as an auxiliary for subsequent positioning, a specific position point can be more accurately positioned, for example, a house number and the like can be specifically positioned;
s3, if the requirement of the current positioning scene on the positioning response time is low, performing gps positioning;
in step S3, if the gps positioning data is not obtained within the first preset time (for example, 2 minutes), wifi + lbs positioning is performed, and the specific flowchart is shown in fig. 3;
in determining whether the positioning scene where the mobile device is currently located is highly demanding on positioning response time, the determination can be made by applying a scenario where the demands on the bounded surface display or the time demands can be considered as highly demanding on positioning response time, such as: real-time positioning is performed on a mobile phone app in a point-and-down manner, and then the position needs to be displayed in a short time, as follows: opening a webpage, and if positioning information is embedded in the webpage, the requirement on the response time of positioning in the application scene is high, and a corresponding positioning result needs to be displayed along with the opening of the webpage; the low requirement on the positioning response time is the positioning function attached to some applications refreshed in the background, and the user can not feel obvious time delay due to the execution in the background;
specifically, the identifiers corresponding to the application scenes with high and low requirements on response time can be stored in advance, when it is determined whether the mobile terminal is currently located in an application scene with a high requirement on positioning response, the application scene where the application is currently located can be obtained, the identifier corresponding to the application scene is determined, and then the database is searched for whether the application scene corresponding to the identifier is the application scene with a high requirement on positioning response time according to the identifier, so that quick acquisition is realized;
before gps positioning is executed, whether the displacement of the mobile device is larger than a preset displacement is judged according to signal change of wifi, if yes, gps positioning is executed, and if not, the last positioning result is used.
Example two
The difference between the present embodiment and the first embodiment is that the method further comprises the following steps:
when the mobile device is started or at intervals of second preset time, the gps positioning is forcibly executed, that is, when the mobile device is started or at each preset time, the gps positioning is forcibly executed, and the gps positioning result is stored, wherein the second preset time can be configured, for example, 2 hours, and because the gps positioning precision is high, the accuracy of the displayed positioning result is ensured by forcibly executing the gps positioning and storing;
in addition, except for the gps positioning which is forcibly executed, in the gps positioning under other conditions, before the gps positioning is executed, whether the displacement of the mobile device is larger than a preset displacement is judged according to the signal change of wifi, if so, the gps positioning is executed, otherwise, the last positioning result is used, namely, the corresponding positioning result is stored after each positioning is finished, and if the mobile position is determined to be not large, the latest stored positioning result can be continuously used;
wherein, it includes to judge according to wifi's signal variation whether mobile device's displacement is greater than preset displacement:
acquiring the intensity of each signal of the current wifi list of the mobile equipment;
comparing the intensity of each signal of the current wifi list with the intensity of each signal of the wifi list stored recently, if the change of more than a preset number of wifi signals is within a first preset power value, determining that the displacement of the mobile equipment is not greater than the preset displacement, otherwise, determining that the displacement of the mobile equipment is greater than the preset displacement; the wifi is positioned with an error of 10-100 meters, and the distance conversion is judged through the intensity variation, so that the error can be effectively controlled within 30 meters;
preferably, in order to ensure the accuracy of the judgment, the signals of which the current wifi list is larger than the second preset power value can be compared with the corresponding signals in the wifi list stored in the front; for example, a wifi list of > -85dbm signal quantity is taken, and compared with a wifi list stored in the front, if more than 3 wifi signal values change within 30dbm, the mobile position change quantity can be judged to be small, and the acquired and recently stored positioning data can be directly used;
a flowchart of a specific method of this embodiment is shown in fig. 4, wherein after performing a new gps positioning each time, the time tag Tgps is updated except for storing new positioning information, and a second preset time T0 for performing the gps positioning is recalculated based on the time tag; and storing the current wifi list information every time a new gps positioning is executed, wherein the list information comprises the mac address and the corresponding signal strength of each wifi signal.
EXAMPLE III
The present embodiment is different from the first embodiment or the second embodiment in that, when determining to perform gps positioning, gps positioning is performed for a third preset time (the value is configurable, for example, configured to be 10 seconds);
after a third preset time, judging whether the mobile equipment is outdoors or not according to the number of satellites of gps and the signal strength of the satellites, if so, executing gps positioning for a fourth preset time (the value can be configured, for example, for 2 minutes), wherein the fourth preset time is greater than the third preset time; otherwise, stopping executing gps positioning;
specifically, when the number of satellites is greater than the threshold value of the number of satellites and the signal intensity of the satellites is greater than the threshold value of the signal intensity, the satellite is judged to be outdoors, otherwise, the satellite is indoors;
if the positioning result can not be obtained within the fourth preset time, using wifi + lbs for positioning;
when it is determined whether the satellite is indoors or outdoors, after gps acquires data, it may be determined that the satellite number is 3 or more (when > -3) with signal strength > -30, and it may be determined that the satellite is outdoors, and when the satellite number is less than 3 with signal strength > -30, it may be determined that the satellite is outdoors, where a specific threshold value of the number of satellites and a threshold value of the signal strength of the satellite may be adjusted as needed;
the specific flowchart of this embodiment is shown in fig. 5, and it can be seen from the diagram that after each positioning is performed, the positioning result and wifi list data are guaranteed.
Example four
Referring to fig. 2, an adaptive positioning terminal 1 includes a memory 2, a processor 3, and a computer program stored in the memory 2 and capable of running on the processor 3, where the processor 3 implements the steps of any one of the first to third embodiments when executing the computer program.
To sum up, according to the positioning scene where the mobile device is currently located, the adaptive positioning method and the terminal provided by the present invention select a matching positioning method for positioning based on the requirement of the positioning scene on the positioning response time, and meanwhile, when performing gps positioning with relatively large power consumption, on one hand, determine whether there is a large position change by the change of wifi signal strength, if not, then do not need to perform, and directly use the last stored positioning result, and then perform gps positioning under the condition of large position change, on the other hand, when performing gps positioning, firstly obtain the gps satellite number and signal value according to the preset time, judge whether indoor or outdoor, and end indoor gps positioning to switch to wifi + lbs positioning in advance, and can perform intermittent search positioning, firstly use shorter search positioning to obtain gps signal, judge whether indoor or outdoor according to the gps signal, and if indoor, the gps positioning is directly stopped, if the positioning device is located outdoors, gps searching positioning for a longer time is executed, so that the gps positioning frequency can be obviously reduced, the time length of gps positioning at each time can be greatly reduced, power consumption caused by unnecessary gps searching is avoided, power consumption caused by gps positioning is greatly reduced, equipment power consumption is effectively reduced, and positioning accuracy can be guaranteed.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent changes made by using the contents of the present specification and the drawings, or applied directly or indirectly to the related technical fields, are included in the scope of the present invention.
Claims (7)
1. An adaptive positioning method, comprising the steps of:
s1, determining the current positioning scene of the mobile equipment;
s2, if the requirement of the current positioning scene on the positioning response time is high, firstly performing wifi + lbs positioning, and then performing gps positioning;
s3, if the requirement of the current positioning scene on the positioning response time is low, performing gps positioning;
before gps positioning is executed, judging whether the displacement of the mobile equipment is larger than a preset displacement according to the signal change of wifi, if so, executing gps positioning, otherwise, delaying the last positioning result;
wherein, it includes to judge according to wifi's signal variation whether mobile device's displacement is greater than preset displacement:
acquiring the intensity of each signal of the current wifi list of the mobile equipment;
comparing the intensity of each signal of the current wifi list with the intensity of each signal of the wifi list stored recently, if the change of the wifi signals with the number larger than the preset number is within the preset power value, determining that the displacement of the mobile device is not larger than the preset displacement, otherwise, determining that the displacement of the mobile device is larger than the preset displacement.
2. The adaptive positioning method according to claim 1, wherein in step S3, if the gps positioning data is not obtained within the first predetermined time, wifi + lbs positioning is performed.
3. An adaptive positioning method according to claim 1, further comprising the steps of: and when the mobile equipment is powered on or every second preset time, forcibly executing gps positioning.
4. The adaptive positioning method according to claim 1, wherein when it is determined to perform gps positioning, gps positioning is performed for a third predetermined time;
judging whether the mobile equipment is outdoors or not according to the number of satellites of gps and the signal intensity of the satellites after a third preset time, if so, executing gps positioning at a fourth preset time, wherein the fourth preset time is greater than the third preset time; otherwise, the gps positioning is stopped.
5. The adaptive positioning method according to claim 1, wherein the performing wifi + lbs positioning comprises:
and executing wifi positioning, if the wifi positioning is unsuccessful, using lbs positioning, otherwise, directly using a wifi positioning result as a final positioning result.
6. The adaptive positioning method of claim 1, wherein performing wifi + lbs positioning first and then performing gps positioning comprises:
firstly, wifi + lbs positioning is executed to obtain a first positioning result;
then gps positioning is executed to obtain a second positioning result;
and combining the first positioning result and the second positioning result to be used as a final positioning result.
7. An adaptive positioning terminal comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the processor implements the steps of the adaptive positioning method according to any of claims 1 to 6 when executing the computer program.
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| CN109799524A (en) * | 2019-03-15 | 2019-05-24 | 深圳五洲无线股份有限公司 | A kind of localization method and system for children's wearable device |
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