CN108663700A - A kind of GPS signal loses processing system and method - Google Patents
A kind of GPS signal loses processing system and method Download PDFInfo
- Publication number
- CN108663700A CN108663700A CN201810913575.0A CN201810913575A CN108663700A CN 108663700 A CN108663700 A CN 108663700A CN 201810913575 A CN201810913575 A CN 201810913575A CN 108663700 A CN108663700 A CN 108663700A
- Authority
- CN
- China
- Prior art keywords
- gps signal
- vehicle
- gps
- signal
- lost
- 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.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
- G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
- G01S19/13—Receivers
- G01S19/35—Constructional details or hardware or software details of the signal processing chain
- G01S19/37—Hardware or software details of the signal processing chain
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Navigation (AREA)
- Traffic Control Systems (AREA)
Abstract
The present invention provides a kind of GPS signals for vehicle to lose processing system and method.The GPS signal loses processing system：Road conditions acquisition device, the traffic information for obtaining the vehicle；Judgment module, for judging whether the vehicle is in GPS signal region easy to be lost according to the traffic information, and the first judging result is exported, and further judge whether the GPS signal of the vehicle is lost when first judging result is no, and export the second judging result；And processor, for selecting the first tupe to carry out signal recovery processing to GPS signal when first judging result is to be, selecting second processing pattern to carry out signal recovery processing to GPS signal when second judging result is is.On the one hand the present invention program saves signal communication number, on the other hand save signal memory space, and to mitigate storage pressure, and the system structure is simple, and method flow is easy.
Description
Technical field
The present invention relates to technical field of automobile navigation more particularly to a kind of GPS signal to lose processing system and method.
Background technology
Using GPS positioning satellite, the system for being positioned, being navigated in real time in the world, referred to as global positioning satellite
System, abbreviation GPS.GPS is to develop the one kind established by U.S. Department of Defense to have comprehensive, round-the-clock, all the period of time, high-precision
Satellite navigation system can provide the navigation such as low cost, high accuracy three-dimensional position, speed and accurate timing letter for Global Subscriber
Breath, is application examples of the communication technology of satellite in navigation field, it greatly improves the level of IT application of Terre des Hommes's meeting, effectively
Ground has pushed the development of digital economy.GPS has been widely used for the application fields such as mobile terminal, automobile at present.
" losing star " refers to that GPS signal is lost, and causes not positioning or position inaccurate.For example, automobile is entering the bases such as tunnel
In sheet when the place of no signal, address GPS signal or GPS signal entanglement can not be obtained in time, this causes GPS on map
There is deviation in track, even if sailing out of tunnel, also due to the GPS signal superposition of formerly entanglement leads to not carry out navigation map
Timely and accurately update.
Invention content
One purpose of first aspect present invention is to solve GPS signal existing in the prior art to be easy in Special zone
The technical issues of loss.
One of first aspect present invention is further objective is that how GPS signal is handled after Special zone loss to subtract
Number is communicated less, and mitigates data storage pressure.
The purpose of second aspect of the present invention is to provide for a kind of method of the simple GPS signal for restoring to lose.
The present invention provides a kind of GPS signals for vehicle to lose processing system, including：
Road conditions acquisition device, the traffic information for obtaining the vehicle；
Judgment module, for judging whether the vehicle is in GPS signal region easy to be lost according to the traffic information, and
The first judging result is exported, and further judges whether the GPS signal of the vehicle is lost when first judging result is no
It loses, and exports the second judging result；And
Processor, for selecting the first tupe to carry out signal to GPS signal when first judging result is to be
Recovery processing, when second judging result is to be, selection second processing pattern carries out signal recovery processing to GPS signal.
Optionally, the processor is configured to, and under first tupe, disconnects the GPS signal of the vehicle
Searching request sends described search request, and remove until when the vehicle will be driven out to GPS signal region easy to be lost
First GPS signal.
Optionally, when the navigation device of the vehicle mounted guidance of the vehicle or mobile terminal is in open state, the road
Condition acquisition device is selected as the navigation device of vehicle mounted guidance or the mobile terminal.
Optionally, the processor is configured to, according to the speed information of the vehicle and the vehicle mounted guidance or described
The traffic information that navigation device is got determines the time for being driven out to GPS signal region easy to be lost, and sends in advance
Described search is asked.
Optionally, when the vehicle mounted guidance of the vehicle or the navigation device of mobile terminal are closed, the road
Condition acquisition device is selected as the image acquiring device for obtaining ambient image.
Optionally, the processor is configured to, and the ambient image got according to described image acquisition device is come really
It is fixed whether to be driven out to GPS signal region easy to be lost, and described search request is sent in advance.
Optionally, the processor is configured to, and under the second processing pattern, is sent and is removed formerly every preset time
The request of GPS signal, while the request of search current GPS signals is sent, until searching the current GPS signals.
Particularly, the present invention also provides a kind of GPS signal loss processing method, include the following steps：
Obtain the traffic information of the vehicle；
Judge whether the vehicle is in GPS signal region easy to be lost according to the traffic information, and obtains first and judge
As a result,
When first judging result is to be, the first tupe is selected to carry out signal recovery processing to GPS signal；
Further judge whether the GPS signal of the vehicle is lost when first judging result is no, and obtains the
Two judging results select second processing pattern to carry out at signal recovery GPS signal when second judging result is to be
Reason.
Optionally,
First tupe includes：
Disconnect the searching request of the GPS signal of the vehicle；
Until when the vehicle will be driven out to GPS signal region easy to be lost, described search request is retransmited, and remove
First GPS signal.
Optionally, the GPS signal loss processing method further includes following steps：
After selecting the second processing pattern, the request for removing first GPS signal is sent every preset time, is sent simultaneously
The request of current GPS signals is searched for, until searching the current GPS signals.
Scheme according to the present invention selects the first tupe to carry out when vehicle travels in GPS signal region easy to be lost
Signal recovery handle, vehicle the non-region easy to be lost of GPS signal when driving, if dropout, according to second processing pattern
Signal recovery processing is carried out, to hunt out GPS signal again, and then solve that GPS signal in vehicle travel process loses asks
Topic.
When vehicle drives into GPS signal region easy to be lost, by disconnecting GPS search signal, and GPS signal will be driven out to
Searching request is sent when region easy to be lost in advance, and removes first GPS signal, so as to avoid due to jitter band
Come GPS signal lose and signal entanglement, and can to avoid swinging of signal timing persistently carry out signal transmission with connect
It receives, on the one hand saves signal communication number, signal memory space is on the other hand saved, to mitigate storage pressure.Also, in vehicle
When driving into the non-region easy to be lost of GPS signal, the GPS signal of loss can also be looked for faster speed, to improve use
It experiences at family.In addition, the system structure of the present invention is simple, method flow is easy.
According to the following detailed description of specific embodiments of the present invention in conjunction with the accompanying drawings, those skilled in the art will be brighter
The above and other objects, advantages and features of the present invention.
Description of the drawings
Some specific embodiments that the invention will be described in detail by way of example and not limitation with reference to the accompanying drawings hereinafter.
Identical reference numeral denotes same or similar component or part in attached drawing.It should be appreciated by those skilled in the art that these
What attached drawing was not necessarily drawn to scale.In attached drawing：
Fig. 1 is the schematic block diagram that GPS signal according to an embodiment of the invention loses processing system；
Fig. 2 is the schematic flow chart of GPS signal loss processing method according to an embodiment of the invention.
Specific implementation mode
Fig. 1 shows that GPS signal according to an embodiment of the invention loses the schematic block diagram of processing system.Such as
Shown in Fig. 1, which loses processing system, including road conditions acquisition device 10, judgment module 20 or processor 30, and road conditions obtain
Device 10 is taken, the traffic information for obtaining vehicle.Judgment module 20 is used to judge that the vehicle is according to the traffic information
It is no to be in GPS signal region easy to be lost, and the first judging result is exported, and further sentence when first judging result is no
Whether the GPS signal of the disconnected vehicle is lost, and exports the second judging result.Processor 30 is used in first judging result
It selecting the first tupe to carry out signal recovery processing to GPS signal when to be, being selected when second judging result is is
Second processing pattern carries out signal recovery processing to GPS signal.
The processor 30 is configured to after selecting first tupe, disconnects the search of the GPS signal of the vehicle
Request sends described search request until when the vehicle will be driven out to GPS signal region easy to be lost, and removes first
GPS signal.In this way, when vehicle drives into GPS signal region easy to be lost, it can be to avoid the GPS letters brought due to jitter
It number loses and signal entanglement, and can be sent and received to avoid signal is persistently carried out in swinging of signal timing, on the one hand
Signal communication number is saved, signal memory space is on the other hand saved, to mitigate storage pressure.
In one embodiment, it is in open state in the navigation device of the vehicle mounted guidance of the vehicle or mobile terminal
When, the road conditions acquisition device 10 is selected as the navigation device of vehicle mounted guidance or the mobile terminal.The processor 30
It is configured to, is believed according to the road conditions that the speed information of the vehicle and the vehicle mounted guidance or the navigation device are got
It ceases to determine the time for being driven out to GPS signal region easy to be lost, and sends described search request in advance.The vehicle mounted guidance is led
Navigate device with 20 signal communication of judgment module.When vehicle mounted guidance or navigation device are opened, navigation map can be obtained, to
Obtain the traffic information of vehicle.
In another embodiment, it is closed in the vehicle mounted guidance of the vehicle or the navigation device of mobile terminal
When, the road conditions acquisition device 10 is selected as the image acquiring device for obtaining ambient image.The processor 30 is configured to,
The ambient image got according to described image acquisition device determines whether to be driven out to GPS signal area easy to be lost
Domain, and described search request is sent in advance.The image acquiring device for example can be the video camera mounted on vehicle, such as vehicle-mounted note
Record instrument.
The processor 30 is configured to after selecting the second processing pattern, is sent every preset time and is removed first GPS
The request of signal, while the request of search current GPS signals is sent, until searching the current GPS signals.
The operation principle that the GPS signal loses processing system is described below：
Judge that vehicle is in the i.e. common road conditions of the easily non-lost regions of GPS signal in judgment module 20, and judges the vehicle
GPS signal when having lost, micro- judgment module 20MCU of vehicle to the GPS chip for obtaining GPS signal to send to remove and exist
The removing of first GPS signal is asked, and GPS chip receives removing request, while receiving the searching request of search current GPS signals.
GPS chip is after executing searching request, if MCU receives GPS signal, judges that GPS signal restores, if MCU is in certain time
As do not received GPS signal in 1min, then judge that GPS signal does not restore, MCU is sent to GPS chip again removes first GPS letters
Number removing request and search current GPS signals searching request, if GPS signal does not restore, repeat top-operation, until
GPS signal restores.
Judge that vehicle is in GPS signal region easy to be lost such as tunnel road conditions, and vehicle mounted guidance or shifting in judgment module 20
In the case of the navigation device of dynamic terminal is not opened, image acquiring device such as automobile data recorder by captured image judge into
When entering GPS signal region easy to be lost, the traffic information of vehicle is transferred to MCU by GPS chip, and MCU will have just enter into GPS signal at this time
The GPS signal in region easy to be lost stores, after vehicle enters GPS signal region easy to be lost, if without GPS signal, at this time MCU according to
The GPS signal of the vehicle of earlier stored analyzes and determines to be tunnel road conditions, is at this moment handled without signal recovery.It will be sailed in vehicle
Go out tunnel road conditions, the ambient image obtained according to image acquiring device is easy to determine whether that the GPS signal will be driven out to
Lost regions, and described search request is sent in advance, after vehicle is driven out to tunnel road conditions, restore GPS signal when common road conditions
Loss processing, and GPS signal when having just enter into tunnel road conditions is covered, if being driven out within tunnel road conditions certain time such as 20s,
GPS signal does not restore, executes above-mentioned common road conditions GPS signal recovery processing.
Judge that vehicle is in GPS signal region easy to be lost such as tunnel road conditions, and vehicle mounted guidance or shifting in judgment module 20
In the case of the navigation device of dynamic terminal is opened, navigation routine information may recognize that whether enter tunnel road conditions, and judgement is tunnel at this time
When road road conditions, handled without signal recovery.MCU is calculated according to the length of tunnel information in the speed information of vehicle and navigation
The time in tunnel to judge tunnel road conditions, after judging to have run out tunnel, sends the request of described search GPS signal,
And GPS signal when removing into tunnel road conditions, at this time MCU be judged as common road conditions, at this moment MCU restores to the place of GPS signal
Reason is restored if being driven out within tunnel certain time such as 20S GPS signal, and GPS chip and MCU communications are normal at this time, and at this moment MCU is not
Instruction is sent out to GPS chip, be driven out to tunnel does not restore more than GPS signal after certain time such as 20S, at this moment executes above-mentioned if judging
Common road conditions GPS signal recovery processing.
Correspondingly, as shown in Fig. 2, the present invention also provides a kind of GPS signal loss processing methods, including：
Step S100 obtains the traffic information of vehicle；
Step S200 judges whether vehicle is in GPS signal region easy to be lost according to traffic information, and obtains first and judge
As a result,
When the first judging result is to be, the first tupe is selected to carry out signal recovery processing to GPS signal；
Further judge whether the GPS signal of vehicle is lost when the first judging result is no, and obtains second and judge knot
Fruit selects second processing pattern to carry out signal recovery processing to GPS signal when the second judging result is to be；
Optionally, GPS signal loss processing method further includes：
Step S201 disconnects the searching request of the GPS signal of vehicle after selecting the first tupe；
Step S202 sends searching request until when vehicle will be driven out to GPS signal region easy to be lost, and removes first
GPS signal.
Optionally, the GPS signal loss processing method further includes following steps：
Step S203 after selecting the second processing pattern, sends every preset time and removes asking for first GPS signal
It asks, while sending the request of search current GPS signals, until searching the current GPS signals.
Scheme according to the present invention can be to avoid due to jitter when vehicle drives into GPS signal region easy to be lost
The GPS signal that brings loses and signal entanglement, and can to avoid persistently carried out in swinging of signal timing the transmission of signal with
It receives, on the one hand saves signal communication number, signal memory space is on the other hand saved, to mitigate storage pressure.Also,
When vehicle drives into GPS signal non-region easy to be lost, the GPS signal of loss can also be looked for faster speed, to improve
User experience.In addition, the system structure of the present invention is simple, method flow is easy.
So far, although those skilled in the art will appreciate that present invention has been shown and described in detail herein multiple shows
Example property embodiment still without departing from the spirit and scope of the present invention, still can according to the present disclosure directly
Determine or derive many other variations or modifications consistent with the principles of the invention.Therefore, the scope of the present invention is understood that and recognizes
It is set to and covers other all these variations or modifications.
Claims (10)
1. a kind of GPS signal for vehicle loses processing system, which is characterized in that including：
Road conditions acquisition device, the traffic information for obtaining the vehicle；
Judgment module for judging whether the vehicle is in GPS signal region easy to be lost according to the traffic information, and exports
First judging result, and further judge whether the GPS signal of the vehicle is lost when first judging result is no, and
Export the second judging result；And
Processor, for selecting the first tupe to carry out signal recovery to GPS signal when first judging result is to be
Processing, when second judging result is to be, selection second processing pattern carries out signal recovery processing to GPS signal.
2. GPS signal according to claim 1 loses processing system, which is characterized in that the processor is configured to, in institute
It states under the first tupe, disconnects the searching request of the GPS signal of the vehicle, until the vehicle will be driven out to the GPS
When signal region easy to be lost, described search request is sent, and remove first GPS signal.
3. GPS signal according to claim 2 loses processing system, which is characterized in that in the vehicle mounted guidance of the vehicle
Or the navigation device of mobile terminal is when being in open state, the road conditions acquisition device be selected as vehicle mounted guidance or it is described it is mobile eventually
The navigation device at end.
4. GPS signal according to claim 3 loses processing system, which is characterized in that the processor is configured to, according to
The traffic information that the speed information of the vehicle and the vehicle mounted guidance or the navigation device are got is sailed to determine
Go out the time in GPS signal region easy to be lost, and sends described search request in advance.
5. GPS signal according to claim 2 loses processing system, which is characterized in that in the vehicle mounted guidance of the vehicle
Or the navigation device of mobile terminal, when being closed, the road conditions acquisition device is selected as the figure for obtaining ambient image
As acquisition device.
6. GPS signal according to claim 5 loses processing system, which is characterized in that the processor is configured to, according to
The ambient image that described image acquisition device is got determines whether to be driven out to GPS signal region easy to be lost,
And described search request is sent in advance.
7. the GPS signal according to any one of claim 1-6 loses processing system, which is characterized in that the processor
It is configured to, under the second processing pattern, the request for removing first GPS signal is sent every preset time, while sending and searching
The request of rope current GPS signals, until searching the current GPS signals.
8. a kind of GPS signal loss processing method for vehicle, which is characterized in that include the following steps：
Obtain the traffic information of the vehicle；
Judge whether the vehicle is in GPS signal region easy to be lost according to the traffic information, and obtain the first judging result,
When first judging result is to be, the first tupe is selected to carry out signal recovery processing to GPS signal；
Further judge whether the GPS signal of the vehicle is lost when first judging result is no, and obtains second and sentence
Break as a result, when second judging result is to be, second processing pattern is selected to carry out signal recovery processing to GPS signal.
9. GPS signal loss processing method according to claim 8, which is characterized in that
First tupe includes：
The searching request of the GPS signal of the vehicle is disconnected, until the vehicle will be driven out to GPS signal region easy to be lost
When, described search request is retransmited, and remove first GPS signal.
10. GPS signal loss processing method according to claim 8, which is characterized in that further include following steps：
After selecting the second processing pattern, the request for removing first GPS signal is sent every preset time, while sending search
The request of current GPS signals, until searching the current GPS signals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810913575.0A CN108663700B (en) | 2018-08-10 | 2018-08-10 | GPS signal loss processing system and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810913575.0A CN108663700B (en) | 2018-08-10 | 2018-08-10 | GPS signal loss processing system and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108663700A true CN108663700A (en) | 2018-10-16 |
| CN108663700B CN108663700B (en) | 2020-07-24 |
Family
ID=63789087
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810913575.0A Active CN108663700B (en) | 2018-08-10 | 2018-08-10 | GPS signal loss processing system and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108663700B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110794822A (en) * | 2019-01-25 | 2020-02-14 | 长城汽车股份有限公司 | Vehicle-mounted control device, field end positioning device, vehicle control system and vehicle |
Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE69013855D1 (en) * | 1989-11-22 | 1994-12-08 | Pioneer Electronic Corp | Tracking procedures for satellite radio signals in GPS receivers. |
| US20080091347A1 (en) * | 2006-10-16 | 2008-04-17 | Eric Tashiro | Map matching method and apparatus for navigation system |
| JP4376330B2 (en) * | 1998-08-10 | 2009-12-02 | 富士通テン株式会社 | Satellite tracking antenna device for moving objects |
| CN101685150A (en) * | 2009-08-06 | 2010-03-31 | 北京华力创通科技股份有限公司 | Method and device for recapturing unlocked signals of satellite receiver |
| CN101782398A (en) * | 2009-01-21 | 2010-07-21 | 佛山市顺德区顺达电脑厂有限公司 | Map information updating device and method |
| CN102368093A (en) * | 2010-06-30 | 2012-03-07 | 株式会社建伍 | Method and apparatus for detecting position |
| EP2112472A3 (en) * | 2008-04-22 | 2012-03-28 | ITT Manufacturing Enterprises, Inc. | Navigation system and method of obtaining accurate navigational information in signal challenging environments |
| CN103728633A (en) * | 2014-01-22 | 2014-04-16 | 宇龙计算机通信科技(深圳)有限公司 | Method and device for avoiding location loss |
| CN105929409A (en) * | 2016-04-12 | 2016-09-07 | 努比亚技术有限公司 | Navigation signal control system and method |
| CN106097754A (en) * | 2016-06-27 | 2016-11-09 | 安徽超远信息技术有限公司 | A kind of mobile law enforcement position acquisition based on radio communication and satellite model and bearing calibration |
| CN106123906A (en) * | 2016-08-17 | 2016-11-16 | 深圳市金立通信设备有限公司 | A kind of auxiliary navigation method and terminal |
| CN106840153A (en) * | 2017-03-14 | 2017-06-13 | 千寻位置网络有限公司 | A kind of high in the clouds calculates the method by speed in tunnel |
| CN106980134A (en) * | 2017-03-07 | 2017-07-25 | 广州汽车集团股份有限公司 | Intelligent vehicle long tunnel outlet GPS drift section control systems and method |
| CN107071141A (en) * | 2017-01-05 | 2017-08-18 | 深圳市金立通信设备有限公司 | A kind of function control method and terminal |
| CN107861132A (en) * | 2017-10-27 | 2018-03-30 | 上海斐讯数据通信技术有限公司 | A kind of GPS track optimization method and device |
| CN108008429A (en) * | 2017-11-22 | 2018-05-08 | 上海斐讯数据通信技术有限公司 | The localization method and system of a kind of intelligent wearable device |
-
2018
- 2018-08-10 CN CN201810913575.0A patent/CN108663700B/en active Active
Patent Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE69013855D1 (en) * | 1989-11-22 | 1994-12-08 | Pioneer Electronic Corp | Tracking procedures for satellite radio signals in GPS receivers. |
| JP4376330B2 (en) * | 1998-08-10 | 2009-12-02 | 富士通テン株式会社 | Satellite tracking antenna device for moving objects |
| US20080091347A1 (en) * | 2006-10-16 | 2008-04-17 | Eric Tashiro | Map matching method and apparatus for navigation system |
| EP2112472A3 (en) * | 2008-04-22 | 2012-03-28 | ITT Manufacturing Enterprises, Inc. | Navigation system and method of obtaining accurate navigational information in signal challenging environments |
| CN101782398A (en) * | 2009-01-21 | 2010-07-21 | 佛山市顺德区顺达电脑厂有限公司 | Map information updating device and method |
| CN101685150A (en) * | 2009-08-06 | 2010-03-31 | 北京华力创通科技股份有限公司 | Method and device for recapturing unlocked signals of satellite receiver |
| CN102368093A (en) * | 2010-06-30 | 2012-03-07 | 株式会社建伍 | Method and apparatus for detecting position |
| CN103728633A (en) * | 2014-01-22 | 2014-04-16 | 宇龙计算机通信科技(深圳)有限公司 | Method and device for avoiding location loss |
| CN105929409A (en) * | 2016-04-12 | 2016-09-07 | 努比亚技术有限公司 | Navigation signal control system and method |
| CN106097754A (en) * | 2016-06-27 | 2016-11-09 | 安徽超远信息技术有限公司 | A kind of mobile law enforcement position acquisition based on radio communication and satellite model and bearing calibration |
| CN106123906A (en) * | 2016-08-17 | 2016-11-16 | 深圳市金立通信设备有限公司 | A kind of auxiliary navigation method and terminal |
| CN107071141A (en) * | 2017-01-05 | 2017-08-18 | 深圳市金立通信设备有限公司 | A kind of function control method and terminal |
| CN106980134A (en) * | 2017-03-07 | 2017-07-25 | 广州汽车集团股份有限公司 | Intelligent vehicle long tunnel outlet GPS drift section control systems and method |
| CN106840153A (en) * | 2017-03-14 | 2017-06-13 | 千寻位置网络有限公司 | A kind of high in the clouds calculates the method by speed in tunnel |
| CN107861132A (en) * | 2017-10-27 | 2018-03-30 | 上海斐讯数据通信技术有限公司 | A kind of GPS track optimization method and device |
| CN108008429A (en) * | 2017-11-22 | 2018-05-08 | 上海斐讯数据通信技术有限公司 | The localization method and system of a kind of intelligent wearable device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110794822A (en) * | 2019-01-25 | 2020-02-14 | 长城汽车股份有限公司 | Vehicle-mounted control device, field end positioning device, vehicle control system and vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108663700B (en) | 2020-07-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111626208B (en) | Method and device for detecting small objects | |
| CN110599794B (en) | Intelligent vehicle finding method and system based on Internet of vehicles | |
| CN106154834B (en) | Method and apparatus for controlling automatic driving vehicle | |
| CN105719499B (en) | Traffic Sign Recognition test method and device | |
| US20210199814A1 (en) | Positioning method and device, and server and system | |
| US11631326B2 (en) | Information providing system, server, onboard device, vehicle, storage medium, and information providing method | |
| CN111830953A (en) | Vehicle self-positioning method, device and system | |
| US11410429B2 (en) | Image collection system, image collection method, image collection device, recording medium, and vehicle communication device | |
| CN104899831B (en) | A kind of unmanned plane image data real-time processing method and system | |
| CN108399752A (en) | A kind of driving infractions pre-judging method, device, server and medium | |
| CN109405827A (en) | Method of locating terminal and device | |
| US20080300782A1 (en) | Navigation System, In-Vehcile Apparatus, And Portable Terminal | |
| US11037442B2 (en) | System, system control method, and information providing server | |
| CN103913175A (en) | Navigation system and interesting-place prompting method | |
| US11935336B2 (en) | Drive recorder, method of operating drive recorder, and recording medium storing instructions for operating same | |
| CN108663700A (en) | A kind of GPS signal loses processing system and method | |
| US6360162B1 (en) | Process for informing an information center about the path covered by a vehicle in a road network, terminal, information center | |
| CN106032983A (en) | Vehicle navigation system based on interconnection between vehicle and mobile phone | |
| CN110160534A (en) | A kind of air navigation aid, device, equipment and storage medium | |
| CN117664156A (en) | Path planning method, device, equipment, medium and vehicle | |
| CN111854770B (en) | Vehicle positioning system and method | |
| CN114264310A (en) | Positioning and navigation method, device, electronic equipment and computer storage medium | |
| CN111811523B (en) | Road network matching error correction method, device and system | |
| CN114234989A (en) | Road network tree updating method and system after vehicle yaw | |
| CN107389059A (en) | A kind of car searching method and equipment based on inertial navigation |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |