CN102175249A - Method for regulating and displaying navigation direction by using sensor, and navigation device using same - Google Patents
Method for regulating and displaying navigation direction by using sensor, and navigation device using same Download PDFInfo
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- CN102175249A CN102175249A CN2009103074222A CN200910307422A CN102175249A CN 102175249 A CN102175249 A CN 102175249A CN 2009103074222 A CN2009103074222 A CN 2009103074222A CN 200910307422 A CN200910307422 A CN 200910307422A CN 102175249 A CN102175249 A CN 102175249A
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Abstract
The invention discloses a method for regulating and displaying a navigation direction by using a sensor, which is suitable for a navigation device. A current angle of the navigation device is defined as a theta cur, a rotating angle theta GM of the sensor in the navigation device is initialized as 0 DEG, and a direction of a map in a navigation interface of the navigation device is set as the current angle theta cur of the navigation device. Whether a coordinate error value of the navigation device is less than a default is judged. When the coordinate error value is less than the default, a GPS (Global Positioning System) module of the navigation device obtains a rotating angle theta gps of the navigation device, the current angle theta cur is equal to the rotating angle theta gps, and the direction of the map in the navigation interface is set as the current angle theta cur.
Description
[technical field]
The present invention is relevant for a kind of guider, and is particularly to a kind ofly utilize sensor to adjust the method for show navigator direction and use the guider of this method.
[background technology]
Along with GPS (Global Positioning System, abbreviating GPS as) spare part prices such as chip, module descend and favorable factor such as volume-diminishedization drives, the trend that running gear carries out various position application in conjunction with the GPS function becomes clear day by day, make the application of GPS no longer be confined to professional application markets such as military affairs, aviation, navigation, comprise all visible its application trace in consumer markets such as mountain-climbing, individual location tracking, Vehicular navigation, and in every GPS navigation product, use the navigation demand of agreeing with general user most with Vehicular navigation again.
According to the product Setup Type, vehicle navigation device can be divided into embedded and Portable two big classes.Portable automobile guider (Portable Navigation Device) can be subdivided into again again pure GPS navigation device and with the GPS function built-in to running gear (for example, personal navigation apparatus (Personal Navigation Device) two big classes on the personal digital assistant (Personal Digital Assistant, PDA) or intelligent mobile phone (SmartPhone)).
The navigation interface of existing portable automobile guider provides two kinds of display modes.First kind of display mode is the guiding of being exposed to the north (North Up), no matter promptly present navigation direction on map why, all is shown as the north above the map of this navigation interface.Second kind of display mode is headstock (Heading Up) forward, and promptly this navigation interface comes the show navigator direction according to road direction, and it is a present portable automobile guider navigate mode commonly used.
Yet, obviously different based on the situation of driving when the user also wishes to use guider to guide direction when walking with walking, so the navigation mode of portable automobile guider can't satisfy user's navigation demand.
[summary of the invention]
The object of the invention is in that a kind of guider that utilizes the method for sensor adjustment show navigator direction and use this method is provided, in order to the navigation mode that meets user's demand to be provided.
Based on above-mentioned purpose, the embodiment of the invention has disclosed a kind of method of utilizing sensor to adjust the show navigator direction, and it is applicable to a guider.A present angle that defines this guider is θ cur, the anglec of rotation θ GM of the sensor in this guider is initially turns to 0 degree, and be this present angle θ cur of this guider the direction setting of the map in the navigation interface of this guider.Whether an error of coordinate value of judging this guider is less than a default value.When this error of coordinate value less than this default value, then obtain the anglec of rotation θ gps of this guider via a GPS module of this guider, make this present angle θ cur equal this anglec of rotation θ gps, and be this present angle θ cur the direction setting of this map in this navigation interface.
The embodiment of the invention has more disclosed a kind of guider, comprises a screen, a GPS module, a sensor and a microprocessor.This screen is in order to show a map.This GPS module is in order to obtain an anglec of rotation θ gps of this guider.This sensor is in order to producing an anglec of rotation θ GM of this guider, and this anglec of rotation θ GM is initially and turns to 0 degree.The present angle that this microprocessor is obtained this guider is θ cur, and with the direction setting of this map in this screen is this present angle θ cur, whether an error of coordinate value of judging this guider is less than a default value, when this error of coordinate value less than this default value, then obtain this anglec of rotation θ gps of this guider via this GPS module, make this present angle θ cur equal this anglec of rotation θ gps, and be this present angle θ cur the direction setting of this map in this screen.
Compared to prior art, utilize sensor to adjust the method for show navigator direction and use the guider of this method, the navigation mode that meets user's demand can be provided.
For purpose of the present invention, structural attitude and function thereof are had further understanding, conjunction with figs. is described in detail as follows now:
[description of drawings]
Fig. 1 shows the method step process flow diagram that utilizes sensor adjustment show navigator direction of the embodiment of the invention.
Fig. 2 shows the configuration diagram of the guider of the embodiment of the invention.
[embodiment]
The embodiment of the invention has disclosed a kind of guider that utilizes the method for sensor adjustment show navigator direction and use this method.
The method of the adjustment show navigator direction of the embodiment of the invention utilizes sensor (wherein sensor can be acceleration transducer (G-sensor) and electronic compass (M-Sensor) (being designated hereinafter simply as the G/M sensor) or gyroscope) that a kind of similar " What You See Is What You Get (what you see is what you get; WYSIWYG) " notion is provided, promptly when starting the walking pattern (Walk/Jog) of a guider, a navigation interface of this guider shows the navigation scenery identical with user's sight line the place ahead.When this user turned to, the navigation scenery in this navigation interface also was diverted to the navigation scenery identical with this user's sight line the place ahead.That is to say that when the user turns round when changing direction, this guider just induction at once makes map on this navigation interface along with rotation.
Fig. 1 shows the method step process flow diagram that utilizes sensor adjustment show navigator direction of the embodiment of the invention.
At first, the present angle that defines a guider is θ cur, the angle θ GM of the G/M sensor in this guider is initially turns to 0 degree (θ GM=0), and the direction Maprot. of the map in the navigation interface of this guider is set (rotation) is θ cur (Maprot.=θ cur) (step S11).Judge this guider an error of coordinate value (that is, whether horizontal coordinate precision (Horizontal Dilution of Precision, HDOP)) less than a default value (for example, 5) (HDOP＜5?) (step S12).
Horizontal coordinate precision (the precision value degree of strength of horizontal coordinate) is the root-mean-square value of latitude and trueness error, and it is high more to be worth more little representative precision.In the present embodiment, when this horizontal coordinate precision less than this default value, then precision is higher, so need finely tune.Otherwise, when this horizontal coordinate precision more than or equal to this default value, then precision is lower, so need carry out coarse adjustment.
When this error of coordinate value less than this default value, then obtain an anglec of rotation θ gps (step S13) of this guider via a GPS module of this guider.Then, the anglec of rotation θ gps of this guider is deducted the angle changing value θ GMD (θ GMD=θ gps-θ cur) (wherein θ GMD represent the angle that according to G/M sensor obtain change the angle changing value that calculate gained) of present angle θ cur to obtain the two of this guider, the anglec of rotation θ GM that sets the G/M sensor is 0 degree (θ GM=0), and makes the present angle θ cur of this guider equal the anglec of rotation θ gps (θ cur=θ gps) (step S14) of this guider.After obtaining above-mentioned angle information, be the present angle θ cur (Maprot.=θ cur) (step S15) of this guider with the direction setting (rotation) of this map in this navigation interface.
When this error of coordinate value more than or equal to this default value, then obtain an anglec of rotation θ GM1 (step S16) of this guider via this G/M sensor in this guider.Then, make the anglec of rotation θ GM1 of this guider deduct the angle changing value θ GMD (θ GMD=θ GM1-θ GM) of anglec of rotation θ GM to obtain the two, the anglec of rotation θ GM that sets the G/M sensor is θ GM1 (θ GM=θ GM1), and makes the present angle θ cur of this guider equal this present angle θ cur adding this angle changing value θ GMD (θ cur=θ cur+ θ GMD) (step S17).After obtaining above-mentioned angle information, be the present angle θ cur (step S15) of this guider with the direction setting (rotation) of this map in this navigation interface.
Fig. 2 shows the configuration diagram of the guider of the embodiment of the invention.
The guider 200 of the embodiment of the invention comprises a microprocessor 210, a GPS module 220, a G/M sensor 230 and a screen 240.
When starting guider 200, microprocessor 210 is θ cur according to the present angle of the satellite-signal definition guider 200 that GPS module 220 obtains, the anglec of rotation θ GM of G/M sensor 230 is initially turns to 0 degree (θ GM=0), and the direction Maprot. of the map in the screen 240 is set (rotation) is this present angle θ cur (Maprot.=θ cur).
Then, does microprocessor 210 judge that according to GPS module 220 whether an error of coordinate value (that is, horizontal coordinate precision (HDOP)) of guider 200 is less than a default value (for example, 5) (HDOP＜5?).When this error of coordinate value less than this default value, then microprocessor 210 is obtained an anglec of rotation θ gps of guider 200 via GPS module 220.
Then, microprocessor 210 makes the anglec of rotation θ gps of guider 200 deduct the angle changing value θ GMD (θ GMD=θ gps-θ cur) of present angle θ cur to obtain the two of guider 200, the anglec of rotation θ GM that sets G/M sensor 230 is 0 degree (θ GM=0), and makes the present angle θ cur of guider 200 equal the anglec of rotation θ gps (θ cur=θ gps) of guider 200.After obtaining above-mentioned angle information, microprocessor 210 is the present angle θ cur (Maprot.=θ cur) of guider 200 with the direction setting (rotation) of this map in the screen 240.
When this error of coordinate value more than or equal to this default value, then microprocessor 210 is obtained an anglec of rotation θ GM1 of guider 200 via G/M sensor 230.Then, microprocessor 210 makes the anglec of rotation θ GM1 of guider 200 deduct the angle changing value θ GMD (θ GMD=θ GM1-θ GM) of anglec of rotation θ GM to obtain the two, the anglec of rotation θ GM that sets G/M sensor 230 is θ GM1 (θ GM=θ GM1), and makes the present angle θ cur of guider 200 equal this present angle θ cur adding this angle changing value θ GMD (θ cur=θ cur+ θ GMD).After obtaining above-mentioned angle information, microprocessor 210 is the present angle θ cur of guider 200 with the direction setting (rotation) of this map in the screen 240.
Note, when the GPS module is measured out of true, utilize the G/M sensor to come subsidiary displacement or rotational angle.Therefore, when the horizontal coordinate precision is littler, then only use GPS can measure displacement accurately or rotational angle, can ignore the G/M sensor this moment, so direct angle with G/M sensor measurement gained is made as 0.Opposite, when the horizontal coordinate precision is bigger, then need to utilize the G/M sensor to come Displacement Measurement or rotational angle.Note that the method for utilizing sensor to adjust the show navigator direction of the embodiment of the invention is mainly used in the walking pattern, but also can be applicable in driving model or other navigation mode.
Method of the present invention, or specific kenel or its part can exist with the kenel of program code.Program code can be contained in tangible media, get (as embodied on computer readable) Storage Media as floppy disk, discs, hard disk or any other machine readable, wherein, when program code by machine, when loading and carrying out as computing machine, this machine becomes in order to participate in device of the present invention.Program code also can pass through some transfer mediums, transmit as electric wire or cable, optical fiber or any transmission kenel, wherein, when program code by machine, when receiving, loading and carrying out as computing machine, this machine becomes in order to participate in device of the present invention.When the general service processing unit is done in fact, program code provides a class of operation to be similar to the unique apparatus of using particular logic circuit in conjunction with processing unit.
Claims (12)
1. method of utilizing sensor to adjust the show navigator direction, it is applicable to a guider, it is characterized in that, this method comprises the following steps:
A present angle that defines this guider is θ cur, the anglec of rotation θ GM of the sensor in this guider is initially turns to 0 degree, and be this present angle θ cur of this guider the direction setting of the map in the navigation interface of this guider;
Whether a coordinates error amount of judging this guider is less than a default value;
When this coordinates error amount less than this default value, then obtain the anglec of rotation θ gps of this guider via a GPS module of this guider;
Make this present angle θ cur equal this anglec of rotation θ gps; And
With the direction setting of this map in this navigation interface is this present angle θ cur.
2. the method for utilizing sensor to adjust the show navigator direction as claimed in claim 1 is characterized in that this method also comprises the following steps:
When obtaining this anglec of rotation θ gps, this anglec of rotation θ gps is deducted this present angle θ cur to obtain one first angle changing value of this sensor.
3. the method for utilizing sensor to adjust the show navigator direction as claimed in claim 1 is characterized in that this method also comprises the following steps:
When obtaining this anglec of rotation θ gps, this anglec of rotation θ GM that sets this sensor is 0 degree.
4. the method for utilizing sensor to adjust the show navigator direction as claimed in claim 1 is characterized in that this method also comprises the following steps:
When this error of coordinate value more than or equal to this default value, then obtain the anglec of rotation θ GM1 of this guider via this sensor;
This anglec of rotation θ GM1 is deducted this anglec of rotation θ GM to obtain one second angle changing value of this sensor;
Make this present angle θ cur equal this present angle θ cur and add this second angle changing value; And
With the direction setting of this map in this navigation interface is this present angle θ cur.
5. the method for utilizing sensor to adjust the show navigator direction as claimed in claim 4 is characterized in that this method also comprises the following steps:
When obtaining this anglec of rotation θ GM1 of this guider, this anglec of rotation θ GM that sets this sensor is this anglec of rotation θ GM1.
6. the method for utilizing sensor to adjust the show navigator direction as claimed in claim 1 is characterized in that this sensor is a G/M sensor or a gyroscope.
7. guider is characterized in that it comprises:
One screen, it is in order to show a map;
One GPS module, it is in order to obtaining an anglec of rotation θ gps of this guider;
One sensor, it is in order to producing an anglec of rotation θ GM of this guider, and this anglec of rotation θ GM is initially and turns to 0 degree; And
One microprocessor, its present angle that obtains this guider is θ cur, and with the direction setting of this map in this screen is this present angle θ cur, whether an error of coordinate value of judging this guider is less than a default value, when this error of coordinate value less than this default value, then obtain this anglec of rotation θ gps of this guider via this GPS module, make this present angle θ cur equal this anglec of rotation θ gps, and be this present angle θ cur the direction setting of this map in this screen.
8. guider as claimed in claim 7 is characterized in that, when obtaining this anglec of rotation θ gps, this microprocessor more deducts this anglec of rotation θ gps this present angle θ cur to obtain one first angle changing value of this sensor.
9. guider as claimed in claim 7 is characterized in that, when obtaining this anglec of rotation θ gps, this anglec of rotation θ GM that this microprocessor is more set this sensor is 0 degree.
10. guider as claimed in claim 7, it is characterized in that, when this error of coordinate value more than or equal to this default value, this microprocessor is obtained the anglec of rotation θ GM1 of this guider via this sensor, this anglec of rotation θ GM1 is deducted this anglec of rotation θ GM to obtain one second angle changing value of this sensor, make this present angle θ cur equal this present angle θ cur and add this second angle changing value, and be this present angle θ cur the direction setting of this map in this navigation interface.
11. guider as claimed in claim 10 is characterized in that, when obtaining this anglec of rotation θ GM1 of this guider, this anglec of rotation θ GM that this microprocessor is more set this sensor is this anglec of rotation θ GM1.
12. guider as claimed in claim 7 is characterized in that, this sensor is a G/M sensor or a gyroscope.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009103074222A CN102175249A (en) | 2009-09-22 | 2009-09-22 | Method for regulating and displaying navigation direction by using sensor, and navigation device using same |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009103074222A CN102175249A (en) | 2009-09-22 | 2009-09-22 | Method for regulating and displaying navigation direction by using sensor, and navigation device using same |
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| CN102175249A true CN102175249A (en) | 2011-09-07 |
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| CN2009103074222A Pending CN102175249A (en) | 2009-09-22 | 2009-09-22 | Method for regulating and displaying navigation direction by using sensor, and navigation device using same |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107134040A (en) * | 2017-03-30 | 2017-09-05 | 福建天泉教育科技有限公司 | A kind of method and system for showing user profile |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107134040A (en) * | 2017-03-30 | 2017-09-05 | 福建天泉教育科技有限公司 | A kind of method and system for showing user profile |
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Application publication date: 20110907 |