CN101458084B - Navigation equipment and navigation method - Google Patents
Navigation equipment and navigation method Download PDFInfo
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- CN101458084B CN101458084B CN 200910076472 CN200910076472A CN101458084B CN 101458084 B CN101458084 B CN 101458084B CN 200910076472 CN200910076472 CN 200910076472 CN 200910076472 A CN200910076472 A CN 200910076472A CN 101458084 B CN101458084 B CN 101458084B
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- navigator
- present position
- low speed
- described navigator
- move mode
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Abstract
The invention provides a navigation facility and a navigation method, which is used for solving the problem that when the navigation facility of the existing global positioning system is in the low speed mobile mode, the direction of the place in which the navigation facility is positioned can not be accurately determined, thus influencing the usage of users. The navigation method comprises that whether the navigation facility is in the low speed mobile mode is determined; when the navigation facility is in the low speed mobile mode, Identifiers representing the direct of travel are converted into the identifiers representing the direction of the place in which the navigation facility is positioned; the direction of the place which the navigation facility is in is determined according to geomagnetic field signals of the place which the navigation facility is in. The technical proposal can cause that when the navigation facility is in the low speed mobile mode, the direction of the place in which the navigation facility is positioned can be accurately determined and the navigation facility realizes the normal navigation function and meets the user requirements.
Description
Technical field
The present invention relates to field of navigation technology, particularly a kind of navigator and air navigation aid.
Background technology
Existing GPS (Global Positioning System, GPS) navigator generally all has map and is used for navigation, when the user who uses GPS navigation equipment is in high-speed mobile pattern following time (be speed greater than 10 kms/hour), GPS navigation equipment can normally be realized navigation function.
But the precision that is limited to GPS navigation equipment, when the user who uses GPS navigation equipment be in low speed Move Mode following time (be speed be 0 to 10 km/hour, when for example the user walks), GPS navigation equipment just can't accurately be differentiated the direction (directions such as Ru Dong, south, west, north) of GPS navigation equipment present position, and this moment, GPS navigation equipment can't normally be realized navigation function.
For example: the user holds the walking under strange environment of GPS navigation mobile phone, because the direction of the determined GPS navigation mobile phone of GPS navigation mobile phone present position may be wrong, this moment, the user can run into following problem:
Because the direction of the determined GPS navigation mobile phone of GPS navigation mobile phone present position may be wrong, so the user is difficult to map and actual landform are mapped;
When the user advances,, advancing of user produced disturb on the contrary because the direction of the determined GPS navigation mobile phone of GPS navigation mobile phone present position may be wrong.
As seen, existing GPS navigation equipment is being in low speed Move Mode following time, can't determine the direction of navigator present position exactly, influences user's use.
Summary of the invention
The embodiment of the invention provides a kind of navigator and air navigation aid, is being in low speed Move Mode following time in order to solve existing GPS navigation equipment, thereby can't determining exactly that the direction of navigator present position influences the problem of user's use.
The navigator that the embodiment of the invention provides comprises:
The pattern determination module is used for determining whether described navigator is in the low speed Move Mode;
Start module, be used for when described navigator is in the low speed Move Mode, start conversion module and direction determination module;
Described conversion module is used for representing that the indications of direct of travel is transformed to the indications of the direction of representing described navigator present position;
Described direction determination module is used for determining according to the terrestrial magnetic field signal of described navigator present position the direction of described navigator present position.
A kind of air navigation aid that the embodiment of the invention provides comprises:
Determine whether navigator is in the low speed Move Mode;
When described navigator is in the low speed Move Mode, the indications of expression direct of travel is transformed to the indications of the direction of the described navigator of expression present position, and determines the direction of described navigator present position according to the terrestrial magnetic field signal of described navigator present position.
The technical scheme that the embodiment of the invention provides can be determined the direction of navigator present position exactly when making navigator be in the low speed Move Mode, make navigator realize normal navigation feature, has satisfied user's user demand.
Description of drawings
Fig. 1 is the process flow diagram of air navigation aid in the embodiment of the invention;
Fig. 2 is the structural representation of navigator in the embodiment of the invention;
Fig. 3 is the structural representation of another navigator in the embodiment of the invention;
Fig. 4 is for comprising the structural representation of the navigator of speed determination module in the embodiment of the invention;
Fig. 5 is the structural representation of embodiment of the invention medium velocity determination module.
Embodiment
In order to solve problems of the prior art, the embodiment of the invention provides a kind of navigator and air navigation aid.
As shown in Figure 1, the air navigation aid that the embodiment of the invention provides is removed and to be utilized gps antenna and GPS hardware circuit to determine the navigator present position, and displayed map and indicating on the map that emphasis comprises the following steps: outside the navigator present position
S101, determine whether navigator is in the low speed Move Mode.
Wherein, determine that whether navigator is in the low speed Move Mode, is specifically as follows one of following dual mode:
Mode one is provided with instruction according to the Move Mode that obtains, and determines whether navigator is in the low speed Move Mode.
Particularly, when the Move Mode that obtains is provided with instruction when navigator being set being the instruction of low speed Move Mode, determine that navigator is in the low speed Move Mode; When the Move Mode that obtains is provided with instruction when navigator being set being the instruction of non-low speed Move Mode (such as high-speed mobile pattern or other Move Mode), determine that navigator is in non-low speed Move Mode.
Mode two, according to navigator be in the low speed Move Mode maximal rate, and the speed of the navigator determined of GPS hardware circuit between magnitude relationship, determine whether navigator is in the low speed Move Mode.
Wherein, the navigator maximal rate that is in the low speed Move Mode can be 10 kms/hour.When the speed of the navigator of determining when the GPS hardware circuit is equal to or less than navigator and is in the maximal rate of low speed Move Mode, illustrate that navigator is in the low speed Move Mode, at this moment, the user may be in static or walking or running state; When the speed of the definite navigator of GPS hardware circuit is in the maximal rate of low speed Move Mode greater than navigator, illustrate that navigator is in non-low speed Move Mode (such as high-speed mobile pattern or other Move Mode), navigator can be carried out prior art and determine direct of travel and translational speed.
S102, when navigator is in the low speed Move Mode, the indications of expression direct of travel is transformed to the indications of the direction of expression navigator present position, and determines the direction (such as directions such as east, south, west, north) of navigator present position according to the terrestrial magnetic field signal of navigator present position.
Illustrate below when navigator is in the low speed Move Mode, the indications of expression direct of travel be transformed to the method for the indications of the direction of representing the navigator present position:
Suppose that indications is an arrow, be in the low speed Move Mode in navigator, and when the map display mode is the display mode of " in the positive Northern Dynasties ", originally the arrow of representing direct of travel is transformed to the arrow of the direction of expression navigator present position, the i.e. direction of " head " (such as the color change of the arrow that will represent direct of travel), after arrow changes, the user just can understand the direction that current navigator has begun to indicate the navigator present position, like this user can clearly recognize the navigator fuselage towards the counterparty of direction on map to, when arrow up the time direction of map and actual landform just consistent;
Be in the low speed Move Mode in navigator, and when the map display mode is the display mode of " headstock up ", to represent originally that equally the arrow of direct of travel is transformed to the arrow of the direction of expression navigator present position, the i.e. direction of " head " (such as the color change of the arrow that will represent direct of travel), after arrow changes, the user just can understand the direction that current navigator has begun to indicate the navigator fuselage, like this user can clearly recognize the navigator fuselage towards the counterparty of direction on map to, this moment is navigator fuselage sense of rotation how no matter, and the map that the user sees all is consistent with actual landform.
In addition, determine to be specially the direction (such as directions such as east, south, west, north) of navigator present position according to the terrestrial magnetic field signal of navigator present position:
Measure the terrestrial magnetic field signal of navigator present position;
According to the terrestrial magnetic field signal of navigator present position, determine the geomagnetic declination of navigator present position;
Determine the direction of navigator present position according to the geomagnetic declination of navigator present position.
Because the accuracy of the terrestrial magnetic field signal of measuring, can't be subjected to the influence of navigator translational speed height, therefore, navigator is when being in the low speed Move Mode, can determine the direction of navigator present position exactly according to the terrestrial magnetic field signal of navigator present position, realize the normal navigation feature of navigator.For example, the user of walking knows 500 meters of direct north in the navigator present position, destination, at this moment, because navigator has been determined the direction of navigator present position exactly according to the terrestrial magnetic field signal of its present position, therefore the user just can learn which direction the direct north of navigator present position is, thereby the user can arrive the destination towards direction walking accurately.
The above-mentioned air navigation aid that the embodiment of the invention provides when making navigator be in the low speed Move Mode, can be determined the direction of navigator present position exactly, makes navigator realize normal navigation feature, has satisfied user's user demand.
In addition, existing GPS navigation equipment can't accurately determine the speed that navigator moves, and its definite speed may change constantly in addition being in low speed Move Mode following time, cause duration error in judgement too greatly, influence user's use to the destination needs.In order to overcome this shortcoming of prior art, the above-mentioned air navigation aid that the embodiment of the invention provides is after execution in step S102, and is all right: determine the speed that navigator moves according to stride and step frequency that navigator moves.The mode of this definite navigator translational speed relatively is applicable to the navigator that is in the low speed Move Mode, when navigator is in low speed Move Mode following time, the speed of utilizing the determined navigator of this mode to move is more accurate, its accuracy is that existing GPS navigation equipment is beyond one's reach, thereby make navigator realize normal navigation feature, satisfied user's user demand.
Particularly, navigator can utilize existing acceleration of gravity sensor in the prior art to measure stride that navigator moves and step frequently, stride that moves according to the navigator of acceleration of gravity sensor determination and step are determined the speed that navigator moves frequently then.For example, it is that 0.50 meter, step were 1 step/second frequently that the acceleration of gravity sensor determination obtains stride that navigator moves, can determine that then the speed that navigator moves is 0.5 meter per second.Because stride that the navigator measured of acceleration of gravity sensor moves and step frequency ratio are more accurate, therefore, stride that moves according to the navigator of acceleration of gravity sensor determination and step be the speed that moves of determined navigator frequently, and be also more accurate.
Stride that moves according to navigator and step are determined after the speed that navigator moves frequently, just the distance between speed, navigator present position and the destination locations that can move according to above-mentioned definite navigator determines that navigator moves to the duration of destination.For example, navigator receives the destination title that the user provides, and determines the positional information (be coordinate) of destination on map according to the destination title, and the distance L between definite navigator present position and the destination locations; Then, the distance L between speed V, navigator present position and the destination locations that moves according to navigator determines that the duration T that navigator moves to the destination equals L/V.Owing to be under the low speed Move Mode in navigator, the stride that moves according to navigator is more accurate with the velocity ratio that the determined navigator of step frequency moves, therefore, be under the low speed Move Mode in navigator, the duration that the determined navigator of the technical scheme of the embodiment of the invention moves to the destination is also relatively more accurate, its accuracy is that existing GPS navigation equipment is beyond one's reach, thereby makes navigator realize normal navigation feature, has satisfied user's user demand.
As shown in Figure 2, the embodiment of the invention provides a kind of navigator, this navigator also comprises except that comprising existing global positioning system antenna, GPS hardware circuit and being used for displayed map and being equipped with the display module of present position at map subscript exposed installation:
The above-mentioned navigator that the embodiment of the invention provides can be determined the direction of navigator present position exactly when being in the low speed Move Mode, thereby can realize normal navigation feature, can satisfy user's user demand.
Wherein, pattern determination module 201 is specially:
First pattern is determined submodule, is used for according to the Move Mode that obtains instruction being set, and determines whether navigator is in the low speed Move Mode; Perhaps
Second pattern is determined submodule, be used for according to navigator be in the low speed Move Mode maximal rate, and the speed of the navigator determined of GPS hardware circuit between magnitude relationship, determine whether navigator is in the low speed Move Mode.
In addition, as shown in Figure 3, direction determination module 204 may further include:
Magnetic field sensor 301 is used to measure the terrestrial magnetic field signal of navigator present position;
First determines submodule 302, is used for determining according to above-mentioned terrestrial magnetic field signal the geomagnetic declination of navigator present position;
Second determines submodule 303, is used for determining according to above-mentioned geomagnetic declination the direction of navigator present position.
As shown in Figure 4, the navigator shown in Fig. 2 (perhaps Fig. 3) also comprises speed determination module 401, wherein:
Start module 202 and also be used for when pattern determination module 201 determines that navigator is in the low speed Move Mode toggle speed determination module 401;
Navigator shown in Figure 4 is in low speed Move Mode following time, the speed that its determined navigator moves is more accurate, its accuracy is that existing GPS navigation equipment is beyond one's reach, thereby this navigator can realize normal navigation feature, can satisfy user's user demand.
Wherein, as shown in Figure 5, speed determination module 401 may further include:
Acceleration of gravity sensor 501 is used to measure stride and the step frequency that navigator moves;
The 3rd determines submodule 502, is used for the stride that moves according to the navigator that acceleration of gravity sensor 501 is measured and goes on foot frequency, determines the speed that navigator moves.
Because stride that the navigator measured of acceleration of gravity sensor moves and step frequency ratio are more accurate, therefore, comprise that the speed that the determined navigator of navigator of speed determination module shown in Figure 5 moves is also more accurate.
The above is a preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from principle of the present invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (11)
1. a navigator is characterized in that, comprising:
The pattern determination module is used for determining whether described navigator is in the low speed Move Mode;
Start module, be used for when described navigator is in the low speed Move Mode, start conversion module and direction determination module;
Described conversion module is used for representing that the indications of direct of travel is transformed to the indications of the direction of representing described navigator present position;
Described direction determination module is used for determining according to the terrestrial magnetic field signal of described navigator present position the direction of described navigator present position.
2. navigator as claimed in claim 1 is characterized in that, described pattern determination module is specially:
First pattern is determined submodule, is used for according to the Move Mode that obtains instruction being set, and determines whether described navigator is in the low speed Move Mode; Perhaps
Second pattern is determined submodule, be used for according to described navigator be in the low speed Move Mode maximal rate, and the speed of the described navigator determined of GPS hardware circuit between magnitude relationship, determine whether described navigator is in the low speed Move Mode.
3. navigator as claimed in claim 1 is characterized in that, described direction determination module comprises:
Magnetic field sensor is used to measure the terrestrial magnetic field signal of described navigator present position;
First determines submodule, is used for determining according to described terrestrial magnetic field signal the geomagnetic declination of described navigator present position;
Second determines submodule, is used for determining according to described geomagnetic declination the direction of described navigator present position.
4. as each described navigator among the claim 1-3, it is characterized in that, also comprise the speed determination module, wherein:
Described startup module also is used for starting described speed determination module when described pattern determination module determines that described navigator is in the low speed Move Mode;
Described speed determination module, the stride and the step that are used for moving according to described navigator are determined the speed that described navigator moves frequently.
5. navigator as claimed in claim 4 is characterized in that, described speed determination module comprises:
The acceleration of gravity sensor is used to measure stride and the step frequency that described navigator moves;
The 3rd determines submodule, is used for stride that the described navigator according to described acceleration of gravity sensor determination moves and step frequently, determines the speed that described navigator moves.
6. an air navigation aid is characterized in that, comprising:
Determine whether navigator is in the low speed Move Mode;
When described navigator is in the low speed Move Mode, the indications of expression direct of travel is transformed to the indications of the direction of the described navigator of expression present position, and determines the direction of described navigator present position according to the terrestrial magnetic field signal of described navigator present position.
7. air navigation aid as claimed in claim 6 is characterized in that, determines that whether navigator is in the low speed Move Mode, is specially:
According to the Move Mode that obtains instruction is set, determines whether described navigator is in the low speed Move Mode; Perhaps
According to described navigator be in the low speed Move Mode maximal rate, and the speed of the described navigator determined of GPS hardware circuit between magnitude relationship, determine whether described navigator is in the low speed Move Mode.
8. air navigation aid as claimed in claim 6 is characterized in that, determines to be specially the direction of described navigator present position according to the terrestrial magnetic field signal of described navigator present position:
Measure the terrestrial magnetic field signal of described navigator present position;
Determine the geomagnetic declination of described navigator present position according to described terrestrial magnetic field signal;
Determine the direction of described navigator present position according to described geomagnetic declination.
9. as each described air navigation aid of claim 6-8, it is characterized in that, also comprise:
Determine the speed that described navigator moves according to stride and step frequency that described navigator moves.
10. air navigation aid as claimed in claim 9 is characterized in that, determines the speed that described navigator moves according to stride and step frequency that described navigator moves, is specially:
Measure stride and step frequency that described navigator moves;
Stride that moves according to the described navigator of described mensuration and step are determined the speed that described navigator moves frequently.
11. air navigation aid as claimed in claim 7 is characterized in that, the maximal rate that described navigator is in the low speed Move Mode be 10 kms/hour.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910076472 CN101458084B (en) | 2009-01-04 | 2009-01-04 | Navigation equipment and navigation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910076472 CN101458084B (en) | 2009-01-04 | 2009-01-04 | Navigation equipment and navigation method |
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| Publication Number | Publication Date |
|---|---|
| CN101458084A CN101458084A (en) | 2009-06-17 |
| CN101458084B true CN101458084B (en) | 2010-12-01 |
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| CN 200910076472 Expired - Fee Related CN101458084B (en) | 2009-01-04 | 2009-01-04 | Navigation equipment and navigation method |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102555993A (en) * | 2010-12-28 | 2012-07-11 | 中国移动通信集团公司 | Vehicular anti-theft alarm equipment and vehicle anti-theft alarm method |
| CN103675338B (en) * | 2013-12-06 | 2015-07-29 | 无锡清华信息科学与技术国家实验室物联网技术中心 | Based on the high precision walking direction detection method of smart machine |
| CN110319847B (en) * | 2018-03-30 | 2022-03-18 | 比亚迪股份有限公司 | Vehicle and navigation indicating system and method based on vehicle-mounted display terminal |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0527558A1 (en) * | 1991-07-09 | 1993-02-17 | Pioneer Electronic Corporation | GPS navigation system with local speed direction sensing and PDOP accuracy evaluation |
| CN1576791A (en) * | 2003-07-24 | 2005-02-09 | 本田技研工业株式会社 | Vehicle navigation system |
| EP1679490A1 (en) * | 2005-01-07 | 2006-07-12 | HONDA MOTOR CO., Ltd. | Vehicle navigation system |
-
2009
- 2009-01-04 CN CN 200910076472 patent/CN101458084B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0527558A1 (en) * | 1991-07-09 | 1993-02-17 | Pioneer Electronic Corporation | GPS navigation system with local speed direction sensing and PDOP accuracy evaluation |
| CN1576791A (en) * | 2003-07-24 | 2005-02-09 | 本田技研工业株式会社 | Vehicle navigation system |
| EP1679490A1 (en) * | 2005-01-07 | 2006-07-12 | HONDA MOTOR CO., Ltd. | Vehicle navigation system |
Non-Patent Citations (1)
| Title |
|---|
| JP特开5－19036A 1993.01.26 |
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Inventor after: Sun Wentao Inventor after: Zhang Chunlin Inventor after: Song Qi Inventor after: Liang Chao Inventor after: Wen Weizhong Inventor before: Sun Wentao Inventor before: Zhang Chunlin Inventor before: Song Qi |
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Free format text: CORRECT: INVENTOR; FROM: SUN WENTAO ZHANG CHUNLIN SONG QI TO: SUN WENTAO ZHANG CHUNLIN SONG QI LIANG CHAO WEN WEIZHONG |
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Granted publication date: 20101201 Termination date: 20180104 |