CN103925921A - Assistant locating device and method based on electronic compass and pedometer - Google Patents
Assistant locating device and method based on electronic compass and pedometer Download PDFInfo
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- CN103925921A CN103925921A CN201410171284.0A CN201410171284A CN103925921A CN 103925921 A CN103925921 A CN 103925921A CN 201410171284 A CN201410171284 A CN 201410171284A CN 103925921 A CN103925921 A CN 103925921A
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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
- G01C21/005—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 with correlation of navigation data from several sources, e.g. map or contour matching
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- Automation & Control Theory (AREA)
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- General Physics & Mathematics (AREA)
- Navigation (AREA)
- Position Fixing By Use Of Radio Waves (AREA)
Abstract
The invention provides an assistant locating device and an assistant locating method based on an electronic compass and a pedometer. The device comprises an intelligent handheld device, wherein the intelligent handheld device comprises a control and calculation module, a GPS (Global Position System) module, a display module, an electronic compass and a pedometer; the electronic compass, the pedometer, the GPS module and the display module are connected with the control and calculation module; the GPS module is used for obtaining a current position coordinate; the electronic compass is used for obtaining direction data; the pedometer is used for obtaining step number data; the control and calculation module is used for obtaining a new position coordinate according to the current position coordinate, the direction data and the step number data. The assistant location device and method based on the electronic compass and the pedometer can completely solve the problem of high power consumption by positioning and navigating in some case; the device is simple in structure and easy to implement.
Description
Technical field
The present invention relates to a kind of auxiliary locator and method, particularly relate to a kind of auxiliary locator and method based on electronic compass and passometer.
Background technology
Along with the development of the intelligent handheld devices such as smart mobile phone, panel computer is with universal, people more and more rely on for positioning service.In prior art, the navigator fix service in intelligent handheld device almost all relies on GPS (Global Positioning System, GPS).Utilize GPS to position, first equipment will receive the signal that GPS is faint, then through processes such as signal amplification, filtering, demodulation, gives processing unit and calculate positional information.
If application number is 200920175512.6, denomination of invention is to disclose a kind of low power consumption GPS mobile phone in the Chinese utility model patent application of < < low power consumption GPS mobile phone > >, and it is comprised of cell phone mainboard, single-chip microcomputer, GPS chip, gps antenna, module chip, display screen, receiver, microphone and battery; Single-chip microcomputer, GPS chip, module chip, display screen, receiver, microphone, sim card slot, function key, USB interface are integrated on cell phone mainboard; Module chip is electrically connected to GPS chip, display screen, receiver, microphone, sim card slot, function key, USB interface respectively; GPS chip is connected with single-chip microcomputer; GPS chip is connected with gps antenna; Cell phone mainboard is circumscribed with battery.
For another example in the Chinese invention patent application that application number is 201010197779.2, denomination of invention is a < < new mobile phone GPS navigation implementation method > >, opened a kind of new mobile phone GPS navigation implementation method, it uses GPS RF module cheaply to receive gps satellite signal, and utilizes SDIO interface (multiplexing with T-Flash) same mobile phone baseband (BB) chip to carry out almanac data transmission and module control; Baseband chip processing in real time receives original ephemeris information and completes decoding, and coordinates map software to complete navigation feature.
Yet, as mentioned above, because the process of GPS of the prior art location relates to demodulation and the power amplification of radiofrequency signal, make that correspondingly power consumption is too high.Therefore,, for intelligent handheld device, utilize GPS to carry out long Navigation and localization impracticable.
Summary of the invention
The shortcoming of prior art in view of the above, the object of the present invention is to provide a kind of auxiliary locator and method based on electronic compass and passometer, it is applied on the intelligent handheld devices such as mobile phone, panel computer, can effectively reduce the power consumption of GPS location, contribute to extend standby and the service time of intelligent handheld device.
For achieving the above object and other relevant objects, the invention provides a kind of auxiliary locator based on electronic compass and passometer, comprise the intelligent handheld device that contains control and computing module, GPS module and display module, described intelligent handheld device also comprises electronic compass and passometer; Described electronic compass, passometer, GPS module, display module are all connected with computing module with described control; Described GPS module is for obtaining current position coordinates; Described electronic compass is used for obtaining directional data; Described passometer is used for obtaining step count data; Described control and computing module are for obtaining new position coordinates according to described current position coordinates, directional data and step count data.
According to the above-mentioned auxiliary locator based on electronic compass and passometer, wherein: described Intelligent handhold module also comprises memory module, storing map information in described memory module.
According to the above-mentioned auxiliary locator based on electronic compass and passometer, wherein: display module for showing in real time current positional information on the map prestoring.
According to the above-mentioned auxiliary locator based on electronic compass and passometer, wherein: described intelligent handheld device comprises smart mobile phone, panel computer, PDA.
Meanwhile, the present invention also provides a kind of assisted location method based on electronic compass and passometer, and it comprises the following steps:
Step S1: obtain current positional information by GPS module;
Step S2: obtain respectively directional data and the step count data of advancing by electronic compass and passometer, and be transferred to control and computing module;
Step S3: described control and computing module obtain new positional information according to described directional data and step count data and the last positional information obtaining;
Step S4: judge whether to arrive the alignment time, if so, proceed to step S1; If not, proceed to step S2.
According to the above-mentioned assisted location method based on electronic compass and passometer, wherein: in described step S2, obtain the frequency of directional data and step count data and set by described control and computing module.
According to the above-mentioned assisted location method based on electronic compass and passometer, wherein: in described step S3, described control and computing module obtain total distance of motion according to described step count data and the stride of a step of being scheduled to; According to total distance of described motion and directional data and the last positional information obtaining, obtain new positional information again.
According to the above-mentioned assisted location method based on electronic compass and passometer, wherein: also comprise in described step S3: under the control of described control and computing module, described display module shows in real time current position on the map prestoring.
According to the above-mentioned assisted location method based on electronic compass and passometer, wherein: in described step S4, described control and computing module periodically obtain positional information accurately by GPS module, to calibrate the resulting positional information of described control and computing module.
Further, according to the above-mentioned assisted location method based on electronic compass and passometer, wherein: the described GPS module cycle of positional information accurately of obtaining is set by described control and computing module.
As mentioned above, auxiliary locator and the method based on electronic compass and passometer of the present invention, has following beneficial effect:
(1) due to passometer and electronic compass, all belong to the product of high precision super low-power consumption, so the present invention can thoroughly solve and uses in some cases the too high problem of GPS location navigation service power consumption;
(2) simple in structure, easily realize.
Accompanying drawing explanation
Fig. 1 is shown as the structural representation of the auxiliary locator based on electronic compass and passometer of the present invention;
Fig. 2 is shown as the process flow diagram of the assisted location method based on electronic compass and passometer of the present invention.
Element numbers explanation
1 controls and computing module
2 electronic compasss
3 passometers
4 GPS modules
5 display modules
Embodiment
Below, by specific instantiation explanation embodiments of the present invention, those skilled in the art can understand other advantages of the present invention and effect easily by the disclosed content of this instructions.The present invention can also be implemented or be applied by other different embodiment, and the every details in this instructions also can be based on different viewpoints and application, carries out various modifications or change not deviating under spirit of the present invention.
It should be noted that, the diagram providing in the present embodiment only illustrates basic conception of the present invention in a schematic way, satisfy and only show with assembly relevant in the present invention in graphic but not component count, shape and size drafting while implementing according to reality, during its actual enforcement, kenel, quantity and the ratio of each assembly can be a kind of random change, and its assembly layout kenel also may be more complicated.
With reference to Fig. 1, the auxiliary locator based on electronic compass and passometer of the present invention comprises intelligent handheld device, electronic compass 2 and the passometer 3 that contains control and computing module 1, GPS module 4 and display module 5.Wherein, electronic compass 2 and passometer 3 are also contained in intelligent handheld device, and electronic compass 2, passometer 3, GPS module 4, display module 5 are all connected with computing module 1 with control.
Particularly, GPS module is for obtaining current position coordinates, electronic compass is used for obtaining directional data, and passometer is for obtaining people in the step count data of traveling process, and control and computing module are for obtaining new position coordinates according to current position coordinates, directional data and step count data.On the map that display module is prestoring under the control of control and computing module, show in real time current positional information and the path of advancing.
Preferably, in intelligent handheld device, also comprise memory module, in memory module, store some cartographic informations.Display module can be according to actual traveling process, selects suitable map to show current positional information and the path of advancing etc.
In the present invention, the stride of supposing each step of common people is all certain, therefore can calculate by pedometer the distance of people's walking.According to resulting data, control and computing module utilization mathematical principle can calculate people and advance after new coordinate position, and by display module, concrete positional information is presented to user.
Auxiliary locator based on electronic compass and passometer of the present invention is the auxiliary locator outside GPS location as intelligent handheld device, can effectively solve the too high problem of original GPS location power consumption.It should be noted that, in the present invention, related intelligent handheld device comprises and is not limited to smart mobile phone, panel computer, PDA, and other have the handheld device of data processing function.Conventionally, intelligent handheld device refers to have independently operating system, can be by user's program that the third party service provider such as mounting software, game provides voluntarily, by this class method, constantly the function of handheld device is expanded, and can realize by mobile communication network such class handheld device of wireless network access.
Particularly, in intelligent handheld device, utilize electronic compass on it and two sensors of passometer, GPS module, display module and control and computing module to realize location.First, open GPS module and obtain current position; Then,, in traveling process, electronic compass and passometer are given control and computing module by directional data and step count data real-time Transmission respectively; Then, control with computing module and utilize the directional data of a positional information and renewal and step count data to obtain new position coordinates; Finally, at set intervals, for example three minutes, system was obtained positional information one time by GPS automatically, and current position coordinates is revised.Meanwhile, can also realize following corresponding function, as: by display module, in map software, show current position, walked how many distances etc.
With reference to Fig. 2, the assisted location method based on electronic compass and passometer of the present invention specifically comprises the following steps:
Step S1: obtain current positional information by GPS module.
Particularly, open GPS module, obtain current positional information, then close GPS module.
Step S2: obtain respectively directional data and step count data by electronic compass and passometer, and be transferred to control and computing module.
Particularly, open electronic compass and passometer, by electronic compass, obtain current directional information of advancing, by passometer, obtain the step count data that current motion is walked.Then the directional data obtaining and step count data are all transferred to control and computing module.
Wherein, the frequency of obtaining directional data and step count data is set by controlling with computing module.And the height that obtains frequency is directly relevant with positioning precision.Frequency is higher, and positioning precision is higher; Frequency is lower, and positioning precision is lower.
Step S3: control and positional information that computing module obtained according to directional data and step count data and last time is obtained new positional information.
Particularly, control and computing module obtains total distance of motion according to the stride of step count data and a predetermined step, then obtain new positional information according to the positional information that total distance of motion and directional data and last time obtain.Utilize the concept of polar coordinate system, the position coordinates that the last time is obtained is as limit, and directional data is as polar angle, and the total distance being obtained by step count data is as utmost point footpath, thereby obtains new positional information.
Meanwhile, can under the control of control and computing module, utilize cartographic information pre-stored in system, on display module, show in real time current position, to position more intuitively.
Step S4: judge whether to arrive the alignment time, if so, proceed to step S1; If not, proceed to step S2.
Wherein, control and computing module periodically obtain positional information accurately by GPS module, to calibrate, control and the resulting positional information of computing module.Control and computing module obtain positional information accurately by GPS every some cycles.The GPS cycle of positional information accurately of obtaining is set by controlling with computing module.Preferably, the cycle is three minutes.
In sum, auxiliary locator and the method based on electronic compass and passometer of the present invention can thoroughly solve the too high problem of power consumption while using in some cases the service of GPS location navigation, and simple in structure, easily realizes.So the present invention has effectively overcome various shortcoming of the prior art and tool high industrial utilization.
Above-described embodiment is illustrative principle of the present invention and effect thereof only, but not for limiting the present invention.Any person skilled in the art scholar all can, under spirit of the present invention and category, modify or change above-described embodiment.Therefore, such as in affiliated technical field, have and conventionally know that the knowledgeable, not departing from all equivalence modifications that complete under disclosed spirit and technological thought or changing, must be contained by claim of the present invention.
Claims (10)
1. the auxiliary locator based on electronic compass and passometer, comprises the intelligent handheld device that contains control and computing module, GPS module and display module, it is characterized in that: described intelligent handheld device also comprises electronic compass and passometer; Described electronic compass, passometer, GPS module, display module are all connected with computing module with described control;
Described GPS module is for obtaining current position coordinates;
Described electronic compass is used for obtaining directional data;
Described passometer is used for obtaining step count data;
Described control and computing module are for obtaining new position coordinates according to described current position coordinates, directional data and step count data.
2. the auxiliary locator based on electronic compass and passometer according to claim 1, is characterized in that: described Intelligent handhold module also comprises memory module, storing map information in described memory module.
3. the auxiliary locator based on electronic compass and passometer according to claim 1, is characterized in that: display module for showing in real time current positional information on the map prestoring.
4. the auxiliary locator based on electronic compass and passometer according to claim 1, is characterized in that: described intelligent handheld device comprises smart mobile phone, panel computer, PDA.
5. the assisted location method based on electronic compass and passometer, is characterized in that: comprise the following steps:
Step S1: obtain current positional information by GPS module;
Step S2: obtain respectively directional data and the step count data of advancing by electronic compass and passometer, and be transferred to control and computing module;
Step S3: described control and computing module obtain new positional information according to described directional data and step count data and the last positional information obtaining;
Step S4: judge whether to arrive the alignment time, if so, proceed to step S1; If not, proceed to step S2.
6. the assisted location method based on electronic compass and passometer according to claim 5, is characterized in that: in described step S2, obtain the frequency of directional data and step count data and set by described control and computing module.
7. the assisted location method based on electronic compass and passometer according to claim 5, is characterized in that: in described step S3, described control and computing module obtain total distance of motion according to described step count data and the stride of a step of being scheduled to; According to total distance of described motion and directional data and the last positional information obtaining, obtain new positional information again.
8. the assisted location method based on electronic compass and passometer according to claim 5, it is characterized in that: in described step S3, also comprise: under the control of described control and computing module, described display module shows in real time current position on the map prestoring.
9. the assisted location method based on electronic compass and passometer according to claim 5, it is characterized in that: in described step S4, described control and computing module periodically obtain positional information accurately by GPS module, to calibrate the resulting positional information of described control and computing module.
10. the assisted location method based on electronic compass and passometer according to claim 9, is characterized in that: the described GPS module cycle of positional information accurately of obtaining is set by described control and computing module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410171284.0A CN103925921A (en) | 2014-04-25 | 2014-04-25 | Assistant locating device and method based on electronic compass and pedometer |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410171284.0A CN103925921A (en) | 2014-04-25 | 2014-04-25 | Assistant locating device and method based on electronic compass and pedometer |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106873753A (en) * | 2017-01-17 | 2017-06-20 | 上海斐讯数据通信技术有限公司 | A kind of wearable device and its control method |
| WO2019134137A1 (en) * | 2018-01-05 | 2019-07-11 | 深圳市沃特沃德股份有限公司 | Satellite-based positioning method and device, and smartwatch |
| CN113280835A (en) * | 2021-05-20 | 2021-08-20 | 北京智慧图科技有限责任公司 | Indoor positioning correction method based on path planning |
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