CN104280043B - A kind of method of work of the higher navigator of accuracy - Google Patents
A kind of method of work of the higher navigator of accuracy Download PDFInfo
- Publication number
- CN104280043B CN104280043B CN201410551817.8A CN201410551817A CN104280043B CN 104280043 B CN104280043 B CN 104280043B CN 201410551817 A CN201410551817 A CN 201410551817A CN 104280043 B CN104280043 B CN 104280043B
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- vehicle
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C21/00—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
- G01C21/26—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 specially adapted for navigation in a road network
- G01C21/34—Route searching; Route guidance
- G01C21/3407—Route searching; Route guidance specially adapted for specific applications
- G01C21/3415—Dynamic re-routing, e.g. recalculating the route when the user deviates from calculated route or after detecting real-time traffic data or accidents
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C21/00—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
- G01C21/26—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 specially adapted for navigation in a road network
- G01C21/28—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 specially adapted for navigation in a road network with correlation of data from several navigational instruments
- G01C21/30—Map- or contour-matching
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- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Automation & Control Theory (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Navigation (AREA)
Abstract
The present invention relates to a kind of method of work of the higher navigator of accuracy, including：When the CPU element of navigator is measured a section will be driven into as the vehicle of navigator carrier, when the section includes parallel overhead section and overhead descending section up and down, CPU element by vehicle window detect and control unit control all vehicle windows of the vehicle to completely close, then detect the vehicle drive into the section during speed and the vehicle room pressure change；If the speed is unchanged, and in-car air pressure diminishes, then judges that the vehicle is current on overhead section；If the speed is unchanged, and in-car air pressure does not diminish, then judges that the vehicle is current on overhead descending section.During air pressure change, the influence to in-car air pressure is changed with reference to speed in the car by the present invention, judges that the vehicle is current whether on overhead section；Relative to prior art, the characteristics of it has accuracy and higher reliability.
Description
The application is divisional application, the invention and created name of original application：Navigator carries out road according to interior air pressure changes of vehicle
The method of work of matching, application number：201210112405.5, the applying date：2012-04-17.
Technical field
The present invention relates to the technical field of the method for work of navigator, specifically a kind of navigator is according to interior air pressure changes of vehicle
Carry out the method for work of path adaptation.
Background technology
Existing navigator is during Circuit Matching, and the elevation information for generally requiring to obtain carrier carries out path adaptation；
In particular for urban elevated road, Current vehicle need to be judged by elevation information on overpass, or under overhead
On the road of side.
Chinese patent literature CN101666643 discloses a kind of be based at barometric surveying and satellite navigation and location system data
The altitude measuring device of reason.Air pressure determines component and calculates pressure altitude, satellite navigation and location system receiver solution according to air pressure
Calculate satellite navigation and location system height and judge whether satellite navigation and location system interrupts and hop, do not interrupting and jumping
During point, with satellite navigation and location system height correction pressure altitude；When satellite navigation and location system height does not update, or satellite
Navigation positioning system is highly interrupted or during hop, and final height value is equal to pressure altitude.
Chinese patent literature CN101000244 discloses a kind of high integration MIMU/GPS/ micro magnetic compasses/barometertic altimeter
Integrated navigation system, by MIMU subsystems, GPS subsystem, micro magnetic compass subsystem, barometertic altimeter subsystem and embedded navigation
The integrated navigation computer composition of algorithm.Integrated navigation computer by MIMU subsystems, GPS subsystem, micro magnetic compass subsystem,
The data of barometertic altimeter subsystem output are handled and information fusion, export position, speed and the attitude information of carrier.
It is in place of above-mentioned the deficiencies in the prior art：On the one hand, using gps signal computed altitude, often error is larger, because
It is typically relatively low for the precision of civilian gps signal, it is impossible to the accurate height for drawing Current vehicle.On the other hand, using air pressure sensing
The air pressure of device detection vehicle position is often also inaccurate.Vehicle respectively it is static, traveling when, act on baroceptor
On pressure gap it is larger, cause surveyed result difference also larger.During real-time navigation is carried out, vehicle is typically in not
Same speed state, under same air pressure conditions, the result measured by baroceptor has larger difference, in addition, air pressure transmission
The output of sensor is also influenceed by temperature and humidity conditions.Therefore accurate air pressure testing result how is obtained, to be provided to navigator
Accurately reference, is the technical barrier of this area.
The door and window seal of existing vehicle, especially car is preferable, but the control panel of these vehicles is provided with air inlet,
The air inlet pipeline being connected with these air inlets is typically located in vehicle front side；In vehicle travel process, the air pressure of vehicle front side
It is often higher, and the air pressure with speed accelerate and increase.This causes in-car air pressure to occur respective change with speed.Same speed
Under the conditions of, the height of vehicle location can also influence in-car air pressure.
The content of the invention
Entered the technical problem to be solved in the present invention is to provide a kind of higher navigator of accuracy according to interior air pressure changes of vehicle
The method of work of row path adaptation.
In order to solve the above technical problems, the method for work for the navigator that the present invention is provided includes：When the CPU element of navigator
A section will be driven into as the vehicle of navigator carrier by measuring, and the section includes parallel overhead section up and down and overhead descending
During section, CPU element is detected by vehicle window and control unit controls all vehicle windows of the vehicle to completely close, and then detects the car
Drive into the speed during the section and the change of the vehicle room pressure；If the speed is unchanged, and in-car gas
Buckling is small, then judges that the vehicle is current on overhead section；If the speed is unchanged, and in-car air pressure does not diminish, then sentences
The vehicle that breaks is current on overhead descending section.
If the speed accelerates, CPU element by current in-car air pressure and the speed that is pre-stored in program data base with
In-car gas pressure curve is compared, if the in-car air pressure under current vehicle speed is smaller than corresponding atmospheric pressure value in the curve, judges
The vehicle is current on overhead section；Otherwise, judge that the vehicle is current on overhead descending section.
If the speed is slack-off, CPU element by current in-car air pressure and the speed that is pre-stored in program data base with
In-car gas pressure curve is compared, if the in-car air pressure under current vehicle speed is smaller than corresponding atmospheric pressure value in the curve, judges
The vehicle is current on overhead section；Otherwise, judge that the vehicle is current on overhead descending section.
Be stored with the attribute in each section in the map data base being connected with CPU element, and the attribute, which includes corresponding section, is
The no information including overhead section parallel up and down and overhead descending section.
The air pressure change curve used is corresponding with the humiture parameter in Current vehicle room.It is used as preferred side
Case, the air pressure change curve of use is while also corresponding with Current vehicle type, vehicle window, the car door airtight performance of the vehicle
Preferably, i.e., do not leaked out when speed is not higher than 80km/h.The speed and air pressure change curve are by respective type simultaneously
All vehicle windows, the car door of the vehicle completely close, and close under conditions of the outer air circulatory function of car and in-car air-conditioning and lead to
Cross and measure what is drawn on level road, and the speed measured has multiple with air pressure change curve, respectively with difference
Humiture parameter it is corresponding.
The overhead descending section refers to the section of immediately below overhead section or lower section side.
The technique effect that the present invention has：The road matching method of the navigator of the present invention, is mainly used in solving in vehicle
When initially entering urban elevated road, judge vehicle whether the technical problem on overpass.Air pressure becomes the present invention in the car
During change, the influence to in-car air pressure is changed with reference to speed, judges that the vehicle is current whether on overhead section；Relative to
Prior art, the characteristics of it has accuracy and higher reliability.
Brief description of the drawings
In order that present disclosure is more likely to be clearly understood, below according to specific embodiment and with reference to accompanying drawing,
The present invention is further detailed explanation, wherein
Fig. 1 is the structured flowchart of the navigator of the present invention.
Embodiment
Below in conjunction with the accompanying drawings and embodiment the present invention is described in detail：
Such as Fig. 1, the navigator of the present embodiment includes：CPU element, the life of the map with touch-screen being connected with the CPU element
Into and display unit, be connected with the CPU element voice-output unit, be connected with the CPU element baroceptor, with should
The connected vehicle speed measurement module of CPU element, the GPS unit being connected with the CPU element, the routine data being connected with the CPU element
Storehouse, the Temperature Humidity Sensor being connected with the CPU element and the map data base being connected with the CPU element.In map data base
Be stored with road path information, and road path information includes the attribute in each section, and the attribute includes whether corresponding section includes
The information in parallel overhead section and overhead descending section up and down.
Vehicle speed measurement module includes：Multiple magnetic induction pulses counters on vehicle hub；The CPU element is with being somebody's turn to do
Magnetic induction pulses counter is connected, for calculating speed according to the umber of pulse in the unit interval.Baroceptor includes：Air pressure sense
Answer device and the processor of height above sea level is calculated according to the output of the air pressure inductor.The processor is connected with the CPU element.
The road matching method of the navigator, it includes：When the CPU element of navigator is measured as navigator carrier
Vehicle will drive into a section, and when the section includes parallel overhead section and overhead descending section up and down, CPU element passes through car
Window is detected and control unit controls all vehicle windows of the vehicle to completely close, during then detecting that the vehicle drives into the section
Speed and the vehicle room pressure change；If the speed is unchanged, and in-car air pressure diminishes, then judges the vehicle
Currently on overhead section, then current guidance path is matched on the overhead section by CPU element；If the speed is without change
Change, and in-car air pressure does not diminish, then judges that the vehicle is current on overhead descending section, then CPU element leads current
Bit path is matched on the overhead descending section.
If the speed accelerates, CPU element by current in-car air pressure and the speed that is pre-stored in program data base with
In-car gas pressure curve is compared, if the in-car air pressure under current vehicle speed is smaller than corresponding atmospheric pressure value in the curve, judges
The vehicle is current on overhead section, and then current guidance path is matched on the overhead section by CPU element；Otherwise,
Judge that the vehicle is current on overhead descending section, then that current guidance path is matched into this is overhead descending for CPU element
On section.
If the speed is slack-off, CPU element by current in-car air pressure and the speed that is pre-stored in program data base with
In-car gas pressure curve is compared, if the in-car air pressure under current vehicle speed is smaller than corresponding atmospheric pressure value in the curve, judges
The vehicle is current on overhead section, and then current guidance path is matched on the overhead section by CPU element；Otherwise,
Judge that the vehicle is current on overhead descending section, then that current guidance path is matched into this is overhead descending for CPU element
On section.
Be stored with the attribute in each section in the map data base being connected with CPU element, and the attribute, which includes corresponding section, is
The no information including overhead section parallel up and down and overhead descending section.
The air inlet pipeline that the existing air inlet with Car is connected typically is located in vehicle front side, and this causes in-car gas
With speed respective change occurs for pressure.Vehicle other positions are located at for the air inlet pipeline（Such as vehicle top surface or rear end face）'s
Vehicle, can set a tracheae to be passed through in-car in vehicle front side.
Obviously, above-described embodiment is only intended to clearly illustrate example of the present invention, and is not to the present invention
The restriction of embodiment.For those of ordinary skill in the field, it can also be made on the basis of the above description
Its various forms of changes or variation.There is no necessity and possibility to exhaust all the enbodiments.And these belong to this hair
Among the obvious changes or variations that bright spirit is extended out is still in protection scope of the present invention.
Claims (1)
1. a kind of method of work of navigator, it is characterised in that navigator includes：CPU element, the band being connected with the CPU element
The map generation of touch-screen and display unit, the baroceptor being connected with the CPU element；
Described method of work, including：
A section will be driven into as the vehicle of navigator carrier when the CPU element of navigator is measured, the section includes flat up and down
When capable overhead section and overhead descending section, CPU element controls all cars of the vehicle by vehicle window detection and control unit
Window is completely closed, then detect the vehicle drive into the section during speed and the vehicle room pressure change；
If the speed is unchanged, and in-car air pressure diminishes, then judges that the vehicle is current on overhead section；
If the speed is unchanged, and in-car air pressure does not diminish, then judges that the vehicle is current on overhead descending section；
Be stored with the attribute in each section in the map data base being connected with CPU element, and whether the attribute wraps including corresponding section
The information in parallel overhead section and overhead descending section above and below including；
If the speed accelerates, CPU element by current in-car air pressure and the speed that is pre-stored in program data base with it is in-car
Gas pressure curve is compared, if the in-car air pressure under current vehicle speed is smaller than corresponding atmospheric pressure value in the curve, judges described
Vehicle is current on overhead section；Otherwise, judge that the vehicle is current on overhead descending section；
If the speed is slack-off, CPU element by current in-car air pressure and the speed that is pre-stored in program data base with it is in-car
Gas pressure curve is compared, if the in-car air pressure under current vehicle speed is smaller than corresponding atmospheric pressure value in the curve, judges described
Vehicle is current on overhead section；Otherwise, judge that the vehicle is current on overhead descending section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410551817.8A CN104280043B (en) | 2012-04-17 | 2012-04-17 | A kind of method of work of the higher navigator of accuracy |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210112405.5A CN102636178B (en) | 2012-04-17 | 2012-04-17 | Operating method of navigator for carrying out road matching according to interior air pressure changes of vehicle |
| CN201410551817.8A CN104280043B (en) | 2012-04-17 | 2012-04-17 | A kind of method of work of the higher navigator of accuracy |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210112405.5A Division CN102636178B (en) | 2012-04-17 | 2012-04-17 | Operating method of navigator for carrying out road matching according to interior air pressure changes of vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104280043A CN104280043A (en) | 2015-01-14 |
| CN104280043B true CN104280043B (en) | 2017-07-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410551817.8A Active CN104280043B (en) | 2012-04-17 | 2012-04-17 | A kind of method of work of the higher navigator of accuracy |
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| CN (1) | CN104280043B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4217555A1 (en) * | 1992-05-27 | 1993-12-02 | Bosch Gmbh Robert | Map-based location and navigation system for motor vehicle - corrects distance covered for tyre wear and pressure errors using known positions of detected bridges and tunnels |
| CN101975961A (en) * | 2010-09-29 | 2011-02-16 | 惠州Tcl移动通信有限公司 | Mobile terminal with GPS (Global Positioning System) navigation function |
| CN102012234A (en) * | 2009-09-04 | 2011-04-13 | 陈宗炜 | Vehicle navigation device |
| CN102095420A (en) * | 2009-12-14 | 2011-06-15 | 索尼公司 | Height output device, height output method, and program |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008175716A (en) * | 2007-01-19 | 2008-07-31 | Xanavi Informatics Corp | Navigation system for specifying one's own vehicle position based on altitude variation, and its method |
-
2012
- 2012-04-17 CN CN201410551817.8A patent/CN104280043B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4217555A1 (en) * | 1992-05-27 | 1993-12-02 | Bosch Gmbh Robert | Map-based location and navigation system for motor vehicle - corrects distance covered for tyre wear and pressure errors using known positions of detected bridges and tunnels |
| CN102012234A (en) * | 2009-09-04 | 2011-04-13 | 陈宗炜 | Vehicle navigation device |
| CN102095420A (en) * | 2009-12-14 | 2011-06-15 | 索尼公司 | Height output device, height output method, and program |
| CN101975961A (en) * | 2010-09-29 | 2011-02-16 | 惠州Tcl移动通信有限公司 | Mobile terminal with GPS (Global Positioning System) navigation function |
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| Publication number | Publication date |
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| CN104280043A (en) | 2015-01-14 |
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Inventor after: Qin Chunda Inventor after: Wu Yanwu Inventor after: Liu Yong Inventor before: Qin Chunda |
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Inventor after: Wu Li Inventor after: Wu Yanwu Inventor after: Liu Yong Inventor after: Qin Chunda Inventor before: Qin Chunda Inventor before: Wu Yanwu Inventor before: Liu Yong |
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