CN105682031A - Method and device for automatically switching network positioning services - Google Patents

Method and device for automatically switching network positioning services Download PDF

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Publication number
CN105682031A
CN105682031A CN201610024511.6A CN201610024511A CN105682031A CN 105682031 A CN105682031 A CN 105682031A CN 201610024511 A CN201610024511 A CN 201610024511A CN 105682031 A CN105682031 A CN 105682031A
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CN
China
Prior art keywords
positioning service
historical record
record
service
network location
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201610024511.6A
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Chinese (zh)
Inventor
蒋世民
刘文杰
吴丕和
林华秋
张强
雷辉
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangdong Oppo Mobile Telecommunications Corp Ltd
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Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Guangdong Oppo Mobile Telecommunications Corp Ltd filed Critical Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority to CN201610024511.6A priority Critical patent/CN105682031A/en
Publication of CN105682031A publication Critical patent/CN105682031A/en
Pending legal-status Critical Current

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W4/00Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/02Services making use of location information
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements
    • H04W36/0005Control or signalling for completing the hand-off
    • H04W36/0011Control or signalling for completing the hand-off for data sessions of end-to-end connection
    • H04W36/0016Hand-off preparation specially adapted for end-to-end data sessions

Abstract

The invention discloses a method and device for automatically switching network positioning services. The method for automatically switching the network positioning services comprises the following steps of: reading a positioning service historical record added recently; setting a corresponding network positioning service in the positioning service historical record added recently to a default positioning service; sending a network positioning request to the default positioning service in need of positioning; and re-confirming the default positioning service from the positioning service historical record or multiple network positioning services when the result return of the network positioning request satisfies a preset switching model, wherein a provider of the network positioning service, the use longitude, the use latitude and the use time are recorded in the positioning service historical record. By means of the scheme, the speed and the success probability of the network positioning request are increased through self-adaptive switching of network positioning.

Description

A kind of method and apparatus of automatically switching network positioning service
Technical field
The present invention relates to field of locating technology, the method and apparatus particularly relating to a kind of automatically switching network positioning service.
Background technology
Network location service is by collecting the positional information of base station and Wi-Fi Hotspot, and forms corresponding data base and externally provide the function of network positions. Mobile terminal provided by access network services obtain geographical position and carry out address de-parsing, conventional application scenarios is camera, photograph album such as. When photograph album or photo add address information, first pass through network location service and obtain location information, location information is being carried out address de-parsing, obtain being attached on photograph album or photo behind address on the spot.
Next mobile terminal of ordinary circumstance only supports a positioning service provider, but there will be server overload in this case, information is imperfect causes location failure or the failure of address de-parsing. Mobile terminal cannot obtain stable network location service in various scenes and region.
Summary of the invention
The method and apparatus that the invention provides a kind of automatically switching network positioning service, to solve the technical problem that in prior art, network location service is unstable.
For realizing above-mentioned design, the present invention by the following technical solutions:
A kind of method adopting automatically switching network positioning service on the one hand, including:
Read the positioning service historical record added recently;
Network location service corresponding in the positioning service historical record added recently is set to acquiescence positioning service;
Network location request is sent to acquiescence positioning service when needing to position;
When the result of described network location request returns and meets the switching model preset, from positioning service historical record or in multiple network location service, reaffirm acquiescence positioning service;
In described positioning service historical record record have network location service provider, use time longitude and latitude and the use time.
Adopt the device of a kind of automatically switching network positioning service on the other hand, including:
Record reads unit, for reading the positioning service historical record of interpolation recently;
Positioning confirmation unit, for being set to acquiescence positioning service by network location service corresponding in the positioning service historical record added recently;
Location Request unit, sends network location request to acquiescence positioning service when being used for needing to position;
Location switch unit, for when the result of described network location request meets default switching model, reaffirming acquiescence positioning service from positioning service historical record or in multiple network location service;
In described positioning service historical record record have network location service provider, use time longitude and latitude and the use time.
The invention have the benefit that and positioning service historical record is set, directly the network location service added recently is set to when start powers on acquiescence positioning service, it is necessary to during location, send network location request to acquiescence positioning service; When the result of network location request returns abnormal, when meeting the switching model preset, it is automatically positioned in service history record or multiple network location service is reaffirmed acquiescence positioning service, being switched the speed and the probability of success that improve network location request by the self adaptation of network positions.
Accompanying drawing explanation
In order to be illustrated more clearly that the technical scheme in the embodiment of the present invention, below the accompanying drawing used required during the embodiment of the present invention is described is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the premise not paying creative work, it is also possible to content according to embodiments of the present invention and these accompanying drawings obtain other accompanying drawing.
Fig. 1 is the method flow diagram of the first embodiment of the method for a kind of automatically switching network positioning service provided in the specific embodiment of the invention.
Fig. 2 is the method flow diagram of the second embodiment of the method for a kind of automatically switching network positioning service provided in the specific embodiment of the invention.
Fig. 3 is the block diagram of the first embodiment of the device of a kind of automatically switching network positioning service provided in the specific embodiment of the invention.
Fig. 4 is the block diagram of the second embodiment of the device of a kind of automatically switching network positioning service provided in the specific embodiment of the invention.
Detailed description of the invention
For the technical scheme making to present invention solves the technical problem that, adopting and the technique effect reached clearly, below in conjunction with accompanying drawing, the technical scheme of the embodiment of the present invention is described in further detail, obviously, described embodiment is only a part of embodiment of the present invention, rather than whole embodiments. Based on the embodiment in the present invention, the every other embodiment that those skilled in the art obtain under not making creative work premise, broadly fall into the scope of protection of the invention.
Refer to Fig. 1, it is the method flow diagram of the first embodiment of the method for a kind of automatically switching network positioning service of offer in the specific embodiment of the invention, as it can be seen, the method for this automatically switching network positioning service, including:
Step S11: read the positioning service historical record added recently.
In positioning service historical record in this programme, record is the event using network location service. Network location service is based on the location of base station and Wi-Fi Hotspot. The general principles of such as architecture is: mobile terminal measures the down-bound pilot frequency signal of different base station, obtain the TOA (TimeofArrival of different base station descending pilot frequency, due in) or TDOA (TimeDifferenceofArrival, the time of advent is poor), according to this measurement result and in conjunction with the coordinate of base station, it is generally adopted triangle formula algorithm for estimating, it becomes possible to calculate the position of mobile terminal.Actual location-estimation algorithm needs to consider the situation that many base stations (3 or more than 3) position, and therefore algorithm wants complicated a lot; It is said that in general, the number of base stations of moving table measuring is more many, certainty of measurement is more high, and positioning performance improves more obvious. Concrete calculating process realizes based on triangle formula, and various calculating parameters detect acquisition in communication network and mobile terminal.
Because the provider of each network location service can be obtained with base station, layout different, server region different, main services object place, the region corresponding with the data of Wi-Fi Hotspot is different. In same geographic range, the precision of the geo-localisation information of the provider of different network location services and feedback speed are all different. In the prior art, single mobile terminal is generally only with a network location service, or adopting multiple network location service, but it is fixing for specifically adopting which network location service, same network location service would be likely to occur, in different regions, the locating effect that difference is huge. In order to obtain better network location service, it is necessary to according to each network location service locating effect in concrete territorial scope, the provider adopting which network location service is selected to provide service within the scope of current zone.
Specifically chosen principle is location efficiency, on mobile terminals during electricity, sends initial location request at least two network location service, to do the velocity measuring of network positions. The provider of each network location service carries out position feedback after receiving initial location request. Concrete feedback procedure is same as the prior art, is not further elaborated at this.
The longitude and latitude when provider of network location service, use and use time is had for record in the described positioning service historical record that realization quickly accesses.
What record in positioning service historical record is all the result of actual location test, rather than the normal result used. Provider, longitude and latitude and use time specifically send initial location request to multiple network location services, longitude and latitude in the provider that the network location service of first restoring to normal position information is corresponding, first the location information returned and the time of return.
Step S12: network location service corresponding in the positioning service historical record added recently is set to acquiescence positioning service.
The positioning service historical record added recently is with the use time therein for reference value, time more rearward, illustrates that this " freshness " recorded is the highest, is the network location service confirmed the validity recently, it is maximum that it connects effective probability, so being directly set to acquiescence positioning service. Even if in small probability situation, this network location service is not provided that the high-quality positioning service under current scene, it is also possible to quickly updated by subsequent step.
The provider of each network location service is after receiving initial location request, if it is possible to realize location, all can restoring to normal position information. In this programme, network location service by first restoring to normal position information, the network location service that namely comprehensive speed of location and transmission is the fastest confirms as acquiescence positioning service, when subsequent design to positioning service, all send the request of network location service to acquiescence positioning service, receive corresponding location information.
It should be noted that, sending and receive and giving tacit consent to the determination of positioning service of initial location request all completes on mobile terminal backstage, concrete confirmation process is not shown for user, the final use information only receiving real demand when normal request network location service of user.
Step S13: send network location request to acquiescence positioning service when needing to position.
Location when needing location not imply that navigation, but location requirement when referring to use the various application relating to position judgment, for instance point of addition information in photo or photograph album, the take exercise by running route in process and mileage record. In such applications, application itself is likely to not have map or positioning function, but can obtain the location information that network location service provides, it is achieved relevant location requirement.
Step S14: when the result of described network location request returns and meets the switching model preset, reaffirm acquiescence positioning service from positioning service historical record or in multiple network location service.
In this programme, the switching model preset has multiple, as long as the state that the result of network location request returns meets one of them, namely it is believed that current acquiescence positioning service needs to adjust.
Concrete switching model is such as: a, continuous several times request come to nothing return; B, the longitude and latitude difference that the result of return is corresponding with acquiescence positioning service are excessive; C, the ratio returning result overtime are excessive.
For model a and model c, the request of continuous several times is come to nothing and is returned the problem that can be considered as network location service itself, now reaffirms acquiescence positioning service from multiple network location services. Specifically send initial location request to multiple network location services, and the network location service of first restoring to normal position information is confirmed as acquiescence positioning service.
For model b, it is the state change caused by the change in location of mobile terminal, now directly can reaffirm acquiescence positioning service from positioning service historical record. In positioning service historical record, specifically directly search record entry, if it is close with this positioning result to there is a certain record strip purpose longitude and latitude, then directly network location service corresponding for this record entry to be confirmed as new acquiescence positioning service. Certainly, if there is no such record entry, directly will reaffirm acquiescence positioning service from multiple network location services.
In sum, positioning service historical record is set, directly the network location service added recently is set to when start powers on acquiescence positioning service, it is necessary to during location, send network location request to acquiescence positioning service; When the result of network location request returns abnormal, when meeting the switching model preset, it is automatically positioned in service history record or multiple network location service is reaffirmed acquiescence positioning service, being switched the speed and the probability of success that improve network location request by the self adaptation of network positions.
Refer to Fig. 2, it is the method flow diagram of the second embodiment of the method for a kind of automatically switching network positioning service of offer in the specific embodiment of the invention, as in figure 2 it is shown, the method for this automatically switching network positioning service, including:
Step S21: judge whether positioning service historical record.
Network location service positions compared to GPS, and locating speed is faster, and affected by environment less, and GPS is likely in the space relatively closed just cannot realize positioning, and network location service can position accurately in indoor realization very much.
In the most initial state, positioning service historical record is probably and is absent from or blank, cannot pass through positioning service historical record and directly confirm acquiescence positioning service, it is necessary to judge whether positioning service historical record exists in advance under this state.
Described positioning service historical record also includes base station information, base station information includes LCA (LocationAreaCode, regional areas code) and CellID (CellTowerID, base coded), base station information is used for a zonule in Precise Representation orientation range, is used for accelerating to search speed.
Step S22: when there is positioning service historical record, reads the positioning service historical record added recently.
Positioning service historical record can have multiple record entry, the network location service of each record strip program recording one, for obtaining finer location, in each record entry, record has a longitude and latitude, and this network location service has the locating effect of the best in the region centered by this longitude and latitude. Such as, in 2 degree of longitudes of surrounding or 2 degree of latitude scope.
Step S23: network location service corresponding in the positioning service historical record added recently is set to acquiescence positioning service.
Assume to add a positioning service historical record in each area of entrance, if always in this area, so this positioning service historical record is exactly the positioning service historical record added recently, start is directly connected to the network location service that this positioning service historical record is corresponding every time, and this network location service is namely set to acquiescence positioning service. This network location service is always accessed, it is thus achieved that stable location information in this area.
Step S24: send network location request to acquiescence positioning service when needing to position.
To add on photo with taking pictures when concrete application scenarios is such as taken pictures; Or in social tool, issue subsidiary geography information when photo or message.
Step S25: the network positioning information that network location request is returned by acquiescence positioning service carries out address de-parsing.
If the network positioning information that acquiescence positioning service generates, directly carried out address de-parsing by this network positioning information of this acquiescence positioning service team. Network positioning information is based on standardized position and divides the location carried out, for instance longitude and latitude or grid division; The network positioning information generated based on longitude and latitude and grid division is mainly for standardized recorded, and user is individual, only according to the longitude and latitude in network positioning information or grid division cannot be carried out be accurately positioned, it needs that network positioning information is carried out address de-parsing and obtains the address information based on place name. Such as (east longitude: 116 ° 23 ' 30 ", north latitude: 39 ° 54 ' 11 "), ordinary person cannot know the geographical position of its sensing, but can confirm that the geographical position that this network positioning information is corresponding is the Monument to the People's Heroes by address de-parsing. The de-parsing of the location navigated in real life that address de-parsing is accomplished that on geography.
Step S26: when the result of described network location request returns and meets the switching model preset, reaffirm acquiescence positioning service from positioning service historical record or in multiple network location service.
Step S27: when being absent from positioning service historical record, sends initial location request to multiple network location services, and the network location service of first restoring to normal position information is confirmed as acquiescence positioning service.
First network location service returning initial positioning information is considered as the alignment quality possessing optimum in current region, is confirmed as acquiescence positioning service, and mobile terminal all adopts acquiescence positioning service when needing to carry out network positions in follow-up use procedure.
Step S28: add the acquiescence positioning service confirmed from multiple network location services to positioning service historical record.
This step is equivalent to positioning service historical record is updated, every time because the result of current default positioning service returns the change of the acquiescence positioning service meeting switching model and cause, it it is all the reference of network location service next time, next network positions is directly connected to the network location service after switching, the network location service that namely in positioning service historical record, the record entry of interpolation is corresponding recently.
The acquiescence positioning service that positioning service historical record includes generating in step S26 is added in the acquiescence positioning service confirmed in multiple network location service mentioned here to, also includes the acquiescence positioning service added in step S27.
Step S29: deleted by the positioning service record repeated in positioning service historical record, the difference of the longitude and latitude of the acquiescence positioning service of the positioning service record of described repetition and new record is less than predetermined threshold value.
When updating positioning service record, the positioning service record repeated in positioning service historical record can be deleted, mentioned here repeat to refer to newly added service history record on the spot apart from only small record entry, for instance gap is less than 2 degree of longitudes or 2 degree of latitudes.
For major part user, the moving range of mobile terminal is smaller, corresponding is that in positioning service historical record, the renewal frequency of entry is relatively low, the network location service accessed is more stable, can delete as one sees fit for the record entry in the positioning service historical record that preserves a long time ago, be held in position in service history record record strip purpose quantum. So positioning service historical record retains nearest 20 positioning service records.
In sum, positioning service historical record is set, directly the network location service added recently is set to when start powers on acquiescence positioning service, it is necessary to during location, send network location request to acquiescence positioning service; When the result of network location request returns abnormal, when meeting the switching model preset, it is automatically positioned in service history record or multiple network location service is reaffirmed acquiescence positioning service, being switched the speed and the probability of success that improve network location request by the self adaptation of network positions.
The embodiment of the device of a kind of automatically switching network positioning service provided in the specific embodiment of the invention is provided, the embodiment of the device of automatically switching network positioning service realizes based on the embodiment of the method for aforesaid automatically switching network positioning service, description not most in the embodiment of the square device of automatically switching network positioning service, refer to the embodiment of the method for aforesaid automatically switching network positioning service.
Refer to Fig. 3, it is the block diagram of the first embodiment of the device of a kind of automatically switching network positioning service of offer in the specific embodiment of the invention, as it can be seen, the device of this automatically switching network positioning service, including:
Record reads unit 10, for reading the positioning service historical record of interpolation recently;
Positioning confirmation unit 20, for being set to acquiescence positioning service by network location service corresponding in the positioning service historical record added recently;
Location Request unit 30, sends network location request to acquiescence positioning service when being used for needing to position;
Location switch unit 40, for when the result of described network location request meets default switching model, reaffirming acquiescence positioning service from positioning service historical record or in multiple network location service;
In described positioning service historical record record have network location service provider, use time longitude and latitude and the use time.
In sum, the collaborative operating of above-mentioned each unit, positioning service historical record is set, directly the network location service added recently is set to when start powers on acquiescence positioning service, it is necessary to during location, send network location request to acquiescence positioning service; When the result of network location request returns abnormal, when meeting the switching model preset, it is automatically positioned in service history record or multiple network location service is reaffirmed acquiescence positioning service, being switched the speed and the probability of success that improve network location request by the self adaptation of network positions.
Refer to Fig. 4, it is the block diagram of the second embodiment of the device of a kind of automatically switching network positioning service of offer in the specific embodiment of the invention, as it can be seen, the device of this automatically switching network positioning service, including:
Record reads unit 10, for reading the positioning service historical record of interpolation recently;
Positioning confirmation unit 20, for being set to acquiescence positioning service by network location service corresponding in the positioning service historical record added recently;
Location Request unit 30, sends network location request to acquiescence positioning service when being used for needing to position;
Location switch unit 40, for when the result of described network location request meets default switching model, reaffirming acquiescence positioning service from positioning service historical record or in multiple network location service;
In described positioning service historical record record have network location service provider, use time longitude and latitude and the use time.
Described device, also includes:
Record judging unit 00, is used for judging whether positioning service historical record;
Described record reads unit 10, specifically for:
When there is positioning service historical record, read the positioning service historical record added recently;
Described device, also includes:
Initial alignment unit 50, for when being absent from positioning service historical record, sending initial location request to multiple network location services, and the network location service of first restoring to normal position information confirmed as acquiescence positioning service.
Wherein, described device, also include:
Record updating block 60, for adding the acquiescence positioning service confirmed from multiple network location services to positioning service historical record.
Wherein, described device, also include:
Recording cleaning unit 70, delete for the positioning service record that will repeat in positioning service historical record, the difference of the longitude and latitude of the acquiescence positioning service of the positioning service record of described repetition and new record is less than predetermined threshold value.
Wherein, described predetermined threshold value is 2 degree of longitudes or 2 degree of latitudes; Described positioning service historical record also includes base station information; Described positioning service historical record retains nearest 20 record entries.
In sum, the collaborative operating of above-mentioned each unit, positioning service historical record is set, directly the network location service added recently is set to when start powers on acquiescence positioning service, it is necessary to during location, send network location request to acquiescence positioning service; When the result of network location request returns abnormal, when meeting the switching model preset, it is automatically positioned in service history record or multiple network location service is reaffirmed acquiescence positioning service, being switched the speed and the probability of success that improve network location request by the self adaptation of network positions.
The know-why of the present invention is described above in association with specific embodiment. These descriptions are intended merely to explanation principles of the invention, and can not be construed to limiting the scope of the invention by any way.Based on explanation herein, those skilled in the art need not pay performing creative labour can associate other detailed description of the invention of the present invention, and these modes fall within protection scope of the present invention.

Claims (10)

1. the method for an automatically switching network positioning service, it is characterised in that including:
Read the positioning service historical record added recently;
Network location service corresponding in the positioning service historical record added recently is set to acquiescence positioning service;
Network location request is sent to acquiescence positioning service when needing to position;
When the result of described network location request returns and meets the switching model preset, from positioning service historical record or in multiple network location service, reaffirm acquiescence positioning service;
In described positioning service historical record record have network location service provider, use time longitude and latitude and the use time.
2. method according to claim 1, it is characterised in that before the positioning service historical record that described reading is added recently, also include:
Judge whether positioning service historical record;
The positioning service historical record that described reading is added recently, particularly as follows:
When there is positioning service historical record, read the positioning service historical record added recently;
After the positioning service historical record that described reading is added recently, also include:
When being absent from positioning service historical record, send initial location request to multiple network location services, and the network location service of first restoring to normal position information is confirmed as acquiescence positioning service.
3. method according to claim 1 and 2, it is characterised in that described method, also includes:
Add the acquiescence positioning service confirmed from multiple network location services to positioning service historical record.
4. method according to claim 3, it is characterised in that described by from multiple network location services confirm acquiescence positioning service add positioning service historical record to after, also include:
Being deleted by the positioning service record repeated in positioning service historical record, the difference of the longitude and latitude of the acquiescence positioning service of the positioning service record of described repetition and new record is less than predetermined threshold value.
5. method according to claim 4, it is characterised in that described predetermined threshold value is 2 degree of longitudes or 2 degree of latitudes; Described positioning service historical record also includes base station information; Described positioning service historical record retains nearest 20 record entries.
6. the device of an automatically switching network positioning service, it is characterised in that including:
Record reads unit, for reading the positioning service historical record of interpolation recently;
Positioning confirmation unit, for being set to acquiescence positioning service by network location service corresponding in the positioning service historical record added recently;
Location Request unit, sends network location request to acquiescence positioning service when being used for needing to position;
Location switch unit, for when the result of described network location request meets default switching model, reaffirming acquiescence positioning service from positioning service historical record or in multiple network location service;
In described positioning service historical record record have network location service provider, use time longitude and latitude and the use time.
7. device according to claim 6, it is characterised in that described device, also includes:
Record judging unit, is used for judging whether positioning service historical record;
Described record reads unit, specifically for:
When there is positioning service historical record, read the positioning service historical record added recently;
Described device, also includes:
Initial alignment unit, for when being absent from positioning service historical record, sending initial location request to multiple network location services, and the network location service of first restoring to normal position information confirmed as acquiescence positioning service.
8. the device according to claim 6 or 7, it is characterised in that described device, also includes:
Record updating block, for adding the acquiescence positioning service confirmed from multiple network location services to positioning service historical record.
9. device according to claim 8, it is characterised in that described device, also includes:
Recording cleaning unit, delete for the positioning service record that will repeat in positioning service historical record, the difference of the longitude and latitude of the acquiescence positioning service of the positioning service record of described repetition and new record is less than predetermined threshold value.
10. device according to claim 9, it is characterised in that described predetermined threshold value is 2 degree of longitudes or 2 degree of latitudes; Described positioning service historical record also includes base station information; Described positioning service historical record retains nearest 20 record entries.
CN201610024511.6A 2016-01-13 2016-01-13 Method and device for automatically switching network positioning services Pending CN105682031A (en)

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CN106851582A (en) * 2017-04-07 2017-06-13 广东欧珀移动通信有限公司 The service switch method of mobile terminal, device and mobile terminal
CN106851582B (en) * 2017-04-07 2020-06-05 Oppo广东移动通信有限公司 Service switching method and device of mobile terminal and mobile terminal
CN110570691A (en) * 2018-06-06 2019-12-13 杭州海康机器人技术有限公司 Unmanned aerial vehicle route determining method and device
CN110570691B (en) * 2018-06-06 2021-12-17 杭州海康机器人技术有限公司 Unmanned aerial vehicle route determining method and device
CN109240101A (en) * 2018-09-21 2019-01-18 深圳市华拓科技有限公司 A kind of equipment long-range control method and control system
CN109682390A (en) * 2019-01-14 2019-04-26 Oppo广东移动通信有限公司 Air navigation aid and Related product
WO2020147646A1 (en) * 2019-01-14 2020-07-23 Oppo广东移动通信有限公司 Navigation method and related product
CN109682390B (en) * 2019-01-14 2021-04-02 Oppo广东移动通信有限公司 Navigation method and related product
CN114071619A (en) * 2020-08-03 2022-02-18 蓝色海洋机器人设备公司 Method for connecting to a communication network and for switching network connectivity
CN114071619B (en) * 2020-08-03 2024-04-16 蓝色海洋机器人设备公司 Method for connecting to communication network and switching network connectivity

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Application publication date: 20160615