CN114500719A - Mobile phone with celestial body positioning function and celestial body positioning method - Google Patents
Mobile phone with celestial body positioning function and celestial body positioning method Download PDFInfo
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- CN114500719A CN114500719A CN202111662408.1A CN202111662408A CN114500719A CN 114500719 A CN114500719 A CN 114500719A CN 202111662408 A CN202111662408 A CN 202111662408A CN 114500719 A CN114500719 A CN 114500719A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
- H04M1/724—User interfaces specially adapted for cordless or mobile telephones
- H04M1/72403—User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality
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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
- G01C21/02—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 by astronomical means
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Abstract
The invention discloses a mobile phone with a celestial body positioning function and a celestial body positioning method, belongs to the technical field of celestial body positioning, and solves the problem that the mobile phone cannot be positioned under the condition of no mobile phone signal network signal coverage even without satellite navigation signals. The mobile phone comprises a mobile phone body, a CCD camera, an attitude sensor and a controller, wherein the attitude sensor and the CCD camera are respectively connected with the controller, and the CCD camera is used for shooting a star image; the attitude sensor is used for acquiring pitch angle information and azimuth angle information; the controller is used for reading pitch angle information and azimuth angle information, recording observation time and calculating the height of a star body, observing more than two star bodies, and completing star body positioning according to an astronomical positioning principle by utilizing the observation time, the observation star body and the star body height. The invention adds a positioning means independent of a satellite navigation system and a mobile phone network system to a common mobile phone, and has very important significance.
Description
Technical Field
The invention belongs to the technical field of celestial body positioning, and particularly relates to a mobile phone with a celestial body positioning function and a celestial body positioning method.
Background
In the prior art, people position by high-precision radio automatic positioning equipment such as a radar, a GPS navigator and the like, and radar passive positioning refers to a radar countermeasure technology for determining the space or the geographic position of a radar by receiving radar radiation signals by using a reconnaissance device and processing the radar radiation signals. The passive positioning method includes a direction-finding positioning method, a time difference positioning method, a direction-finding time difference positioning method and the like. If the reconnaissance station and the radar are on land or at sea and the influence of the curvature of the earth is not considered, the radar position can be obtained by using a two-dimensional plane mathematical relation. If the reconnaissance equipment is arranged on an airplane or a satellite and is not far away from the ground or the sea radar, the radar position is solved by adopting a mathematical relation formula of a three-dimensional space.
The GPS navigator can help a user to accurately position the current position, and calculates a travel according to a set destination, and the GPS navigator guides the user to travel to the destination through two modes of map display and voice prompt, so that the GPS navigator is widely applied to the aspects of traffic, travel and the like, and is generally used as a vehicle-mounted GPS navigator.
However, in the prior art, the navigation instruments have poor autonomous anti-interference and authenticity distinguishing capabilities, even complete failure is possible under the background of strong electronic interference, and the mobile phone cannot be positioned at all under the condition of no mobile phone signal network signal coverage, or the signal of an airborne satellite positioning system is abnormal, even no satellite navigation signal exists.
Disclosure of Invention
The invention provides a mobile phone with a celestial body positioning function and a celestial body positioning method, which solve the problem that in the prior mobile phone positioning technology, under the condition of no mobile phone signal network signal coverage, when a signal of a airborne satellite positioning system is abnormal, even no satellite navigation signal exists, the mobile phone cannot be positioned at all.
In order to achieve the purpose, the invention adopts the following technical scheme:
a mobile phone with a celestial body positioning function comprises a mobile phone body, wherein a CCD camera, an attitude sensor and a controller are arranged in the mobile phone body, the attitude sensor and the CCD camera are respectively connected with the controller, and the CCD camera is used for shooting a celestial body image; the attitude sensor is used for acquiring pitch angle information and azimuth angle information; the controller is used for reading pitch angle information and azimuth angle information, synchronously recording observation time and calculating the height of a star body, observing more than two star bodies, and completing star body positioning according to an astronomical positioning principle by utilizing the observation time and the height of different star bodies.
After the technical scheme is adopted, when no mobile phone signal network coverage exists or no satellite navigation signal exists, more than two star images are shot through the mobile phone, the star positioning can be realized by adopting an astronomical positioning principle according to the star name, the observation time and the star height, and a common mobile phone is provided with a positioning method and a positioning means which are independent of a satellite navigation system and a mobile phone network system, so that the method has very important significance.
The invention also discloses a method for positioning celestial bodies by adopting the mobile phone, which comprises the following steps:
step 1: the mobile phone is aligned to the observation star, the observation star is placed in the field of view of the mobile phone camera, the pitch angle information is obtained through the attitude sensor, and the basic height h of the observation star is obtained0；
Step 2: calculating the supplement height delta h of the observation star according to the vertical pixel number value from the center of the observation star to the horizontal datum line;
and step 3: according to the basic height h of the observed star0And the supplementary height delta h to calculate the star height h, h ═ h0+Δh；
And 4, step 4: observing more than two stars, and completing the star positioning according to the astronomical positioning principle through the star names, the observation time and the star heights h of different stars.
After the technical scheme is adopted, the observation star body does not need to be accurately arranged at the center of the view field of the mobile phone camera, and the observation star body can be positioned only by being arranged in the view field of the mobile phone camera, so that the problem that the positioning error is large due to the fact that the star body is difficult to align because of shaking when the intelligent equipment is manually operated is solved, the influence of electronic interference can be avoided, and the problem that the existing navigation instrument is poor in autonomous anti-interference and authenticity distinguishing capability is solved.
Preferably, the complementary height Δ h in step 2 is calculated as follows:
Δh＝d·K；
wherein, theta represents the vertical field angle of the mobile phone camera field of view, K is the height conversion coefficient, W is the vertical total pixel quantity value of the field of view, and d is the vertical pixel quantity value from the star center to the horizontal datum line.
Further preferably, the attitude sensor further acquires azimuth information of the observation star (a in fig. 1 is a representative azimuth), and the controller determines the star of the observation star by comparing the azimuth information of the observation star with the azimuth of the comparison star.
After the preferred scheme is adopted, the observation star can be identified through the azimuth angle information, and the star number and the name of the observation star are determined, so that an observer does not need to know the observed star, the star positioning can be automatically completed, the use difficulty is reduced, the requirement on the observer is lower, and the popularization and the use are convenient.
In conclusion, compared with the prior art, the invention has the beneficial effects that:
1. when no mobile phone signal network coverage exists or no satellite navigation signal exists, the mobile phone shoots more than two star images, and the star positioning can be realized by adopting an astronomical positioning principle according to the star name, observation time and star height, so that a positioning method and a positioning means which are independent of a satellite navigation system and a mobile phone network system are added to a common mobile phone, and the method has very important significance.
2. According to the invention, the observation star does not need to be accurately arranged at the center of the field of view of the mobile phone camera, and the observation star can be positioned only by being arranged in the field of view of the mobile phone camera, so that the problem of large positioning error caused by shaking, difficulty in aligning the star and difficulty in manually operating the intelligent equipment is solved.
3. The invention can not be influenced by electronic interference, and overcomes the problem that the existing navigation instrument has poor autonomous anti-interference and true and false distinguishing capability.
4. The invention can identify the observation star body through the azimuth angle information and determine the star number and the name of the observation star body, so that an observer does not need to know the observed star body, the star body positioning can be automatically completed, the use difficulty is reduced, the requirement on the observer is lower, and the popularization and the use are convenient.
Drawings
FIG. 1 is a schematic diagram of a mobile phone for celestial positioning in accordance with the present invention;
FIG. 2 is a schematic diagram of a digital image measurement technique.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all the embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present application without making any creative effort, shall fall within the protection scope of the present application.
A mobile phone with a celestial body positioning function is shown in figure 1 and comprises a mobile phone body, wherein a CCD camera, an attitude sensor and a controller are arranged in the mobile phone body. The attitude sensor and the CCD camera are respectively connected with the controller, and the CCD camera is used for shooting a star image; the attitude sensor is used for acquiring pitch angle information and azimuth angle information; the controller is used for reading pitch angle information and azimuth angle information, synchronously recording observation time and calculating the heights of the stars, observing more than two stars, and completing star positioning according to an astronomical positioning principle by utilizing the observation time and the heights of the stars of different stars.
The invention also discloses a method for positioning celestial bodies by adopting the mobile phone, which comprises the following steps:
step 1: the mobile phone is aligned to the observation star, the observation star is placed in the field of view of the mobile phone camera, the pitch angle information is obtained through the attitude sensor, and the basic height h of the observation star is obtained0(basic height h)0Actually, the altitude angle corresponding to the center of the field of view of the mobile phone camera is the elevation angle information;
step 2: calculating the supplement height delta h of the observation star according to the vertical pixel number value from the center of the observation star to the horizontal datum line;
the formula for calculating the supplemental height Δ h is as follows:
Δh＝d·K；
wherein, theta represents the vertical field angle of the mobile phone camera field of view, K is the height conversion coefficient, W is the vertical total pixel quantity value of the field of view, and d is the vertical pixel quantity value from the star center to the horizontal datum line.
And step 3: according to the basic height h of the observed star0And the supplementary height delta h to calculate the star height h, h ═ h0+ Δ h; as shown in fig. 2, the observation star is located above the horizontal reference line, so in this embodiment Δ h is a positive value, and if the observation star is located below the horizontal reference line, Δ h is a negative value.
And 4, step 4: observing more than two stars, and completing star positioning according to an astronomical positioning principle through the star names, the observation time and the star heights h of the more than two stars (the astronomical positioning principle is known in the field and is not described herein).
In this embodiment, the observation stars can be identified by the azimuth information (a in fig. 1 and Δ a in fig. 2), and the star number and name of the observation star can be determined.
In another embodiment, the star names can also be automatically identified by a mobile phone astronomical positioning APP, according to the time of observing the world and the probability position of a surveyor, the altitude angle and the azimuth angle information of all visible stars in the upper hemisphere are calculated, then the altitude angle and the azimuth angle information are compared with the observed altitude angle and the azimuth angle of the measured star, and the star with the calculated value closest to the observed value is selected as the observed star within a certain identification threshold, so that the star number and the name of the observed star are determined. The star name may also be given manually by the observer if the observer recognizes the observed star.
The invention has higher autonomous anti-interference and authenticity distinguishing capability, and has very important significance for providing a positioning method and a positioning means independent of a satellite navigation system and a mobile phone network system for a common mobile phone.
The above-mentioned embodiments only express the specific embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present application. It should be noted that, for those skilled in the art, without departing from the technical idea of the present application, several changes and modifications can be made, which are all within the protection scope of the present application.
Claims (4)
1. A mobile phone with a celestial body positioning function comprises a mobile phone body and is characterized in that a CCD camera, an attitude sensor and a controller are arranged in the mobile phone body, the attitude sensor and the CCD camera are respectively connected with the controller, and the CCD camera is used for shooting images of celestial bodies; the attitude sensor is used for acquiring pitch angle information and azimuth angle information; the controller is used for reading pitch angle information and azimuth angle information, synchronously recording observation time and calculating the height of a star body, observing more than two star bodies, and completing star body positioning according to an astronomical positioning principle by utilizing the observation time and the height of different star bodies.
2. A method for celestial body location using the handset of claim 1, comprising the steps of:
step 1: the mobile phone is aligned to the observation star, the observation star is placed in the field of view of the mobile phone camera, the pitch angle information is obtained through the attitude sensor, and the basic height h of the observation star is obtained0；
Step 2: calculating the supplement height delta h of the observation star according to the vertical pixel number value from the center of the observation star to the horizontal datum line;
and step 3: according to the basic height h of the observed star0And the supplementary height delta h to calculate the star height h, h ═ h0+Δh；
And 4, step 4: observing more than two stars, and completing the star positioning according to the astronomical positioning principle through the star names, the observation time and the star heights h of different stars.
3. Method for celestial body positioning according to claim 2, wherein the complementary height Δ h of step 2 is calculated as follows:
Δh＝d·K；
wherein, theta represents the vertical field angle of the mobile phone camera field of view, K is the height conversion coefficient, W is the vertical total pixel quantity value of the field of view, and d is the vertical pixel quantity value from the star center to the horizontal datum line.
4. The method of claim 2, wherein the attitude sensor further obtains azimuth information of the observed stars, and the controller determines the star of the observed stars by comparing the azimuth information of the observed stars with the azimuth of the comparison stars.
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Citations (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050178876A1 (en) * | 2003-11-25 | 2005-08-18 | Brunson Richard L. | Inertial position target measuring systems and methods |
| JP2006322832A (en) * | 2005-05-19 | 2006-11-30 | Ntt Docomo Inc | Communication terminal, contour information management server, information provision system, and information provision method |
| US20060276963A1 (en) * | 2005-06-03 | 2006-12-07 | Terahop Networks, Inc. | Network aided terrestrial triangulation using stars (natts) |
| US20060282217A1 (en) * | 2005-06-03 | 2006-12-14 | Terahop Networks, Inc. | Network aided terrestrial triangulation using stars (natts) |
| JP2010122672A (en) * | 2008-10-23 | 2010-06-03 | Hoya Corp | Digital camera |
| US20110275408A1 (en) * | 2010-05-07 | 2011-11-10 | Qualcomm Incorporated | Orientation sensor calibration |
| US20120172061A1 (en) * | 2011-01-04 | 2012-07-05 | Research In Motion Limited | Device position method and apparatus using celestial objects |
| CN103091684A (en) * | 2011-10-31 | 2013-05-08 | 上海伽利略导航有限公司 | Hand-held terminal of global navigation satellites system and centering and levelling method thereof |
| CN103837150A (en) * | 2014-03-19 | 2014-06-04 | 中国科学院国家天文台 | Method for performing rapid celestial fix through CCD (charge coupled device) zenith telescope on ground |
| CN105892062A (en) * | 2016-06-24 | 2016-08-24 | 北京邮电大学 | Astronomical observation equipment |
| JP2016200447A (en) * | 2015-04-08 | 2016-12-01 | シャープ株式会社 | Mobile entity, direction estimation method, and computer program |
| CN106289236A (en) * | 2016-07-28 | 2017-01-04 | 中国科学院国家天文台 | A kind of method utilizing CCD zenith telescope observation data to resolve earth rotation parameter (ERP) |
| CN107270888A (en) * | 2017-06-20 | 2017-10-20 | 歌尔科技有限公司 | A kind of method, device and camera for measuring longitude and latitude |
| US20170370725A1 (en) * | 2015-01-21 | 2017-12-28 | Centre National D'etudes Spatiales | Daytime and nighttime stellar sensor with active polarizer |
| CN207976169U (en) * | 2017-12-29 | 2018-10-16 | 四川汉星航通科技有限公司 | A kind of celestial body automatic identification equipment |
| US20190104492A1 (en) * | 2017-03-28 | 2019-04-04 | Irvine Sensors Corporation | Cell Phone-Based Land Navigation Methods and Systems |
| CN109668629A (en) * | 2019-01-21 | 2019-04-23 | 南京泛在地理信息产业研究院有限公司 | Sunshine method for measurement based on mobile phone sensor |
| WO2020033068A2 (en) * | 2018-06-27 | 2020-02-13 | Polaris Sensor Technologies Inc. | Celestial positioning system and method |
| KR102163753B1 (en) * | 2019-09-05 | 2020-10-14 | 한국 천문 연구원 | Determination of orbit and attitude stabilization of geostationary satellite using electro-optical system |
| CN111879299A (en) * | 2020-08-17 | 2020-11-03 | 中国科学院上海天文台 | Full-automatic satellite pointing method for ground-based telescope |
| WO2020261255A1 (en) * | 2019-06-24 | 2020-12-30 | Elbit Systems Ltd. | Geolocation of head-mounted image sensor using celestial navigation |
-
2021
- 2021-12-31 CN CN202111662408.1A patent/CN114500719A/en active Pending
Patent Citations (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050178876A1 (en) * | 2003-11-25 | 2005-08-18 | Brunson Richard L. | Inertial position target measuring systems and methods |
| JP2006322832A (en) * | 2005-05-19 | 2006-11-30 | Ntt Docomo Inc | Communication terminal, contour information management server, information provision system, and information provision method |
| US20060276963A1 (en) * | 2005-06-03 | 2006-12-07 | Terahop Networks, Inc. | Network aided terrestrial triangulation using stars (natts) |
| US20060282217A1 (en) * | 2005-06-03 | 2006-12-14 | Terahop Networks, Inc. | Network aided terrestrial triangulation using stars (natts) |
| JP2010122672A (en) * | 2008-10-23 | 2010-06-03 | Hoya Corp | Digital camera |
| US20110275408A1 (en) * | 2010-05-07 | 2011-11-10 | Qualcomm Incorporated | Orientation sensor calibration |
| US20120172061A1 (en) * | 2011-01-04 | 2012-07-05 | Research In Motion Limited | Device position method and apparatus using celestial objects |
| CN103091684A (en) * | 2011-10-31 | 2013-05-08 | 上海伽利略导航有限公司 | Hand-held terminal of global navigation satellites system and centering and levelling method thereof |
| CN103837150A (en) * | 2014-03-19 | 2014-06-04 | 中国科学院国家天文台 | Method for performing rapid celestial fix through CCD (charge coupled device) zenith telescope on ground |
| US20170370725A1 (en) * | 2015-01-21 | 2017-12-28 | Centre National D'etudes Spatiales | Daytime and nighttime stellar sensor with active polarizer |
| JP2016200447A (en) * | 2015-04-08 | 2016-12-01 | シャープ株式会社 | Mobile entity, direction estimation method, and computer program |
| CN105892062A (en) * | 2016-06-24 | 2016-08-24 | 北京邮电大学 | Astronomical observation equipment |
| CN106289236A (en) * | 2016-07-28 | 2017-01-04 | 中国科学院国家天文台 | A kind of method utilizing CCD zenith telescope observation data to resolve earth rotation parameter (ERP) |
| US20190104492A1 (en) * | 2017-03-28 | 2019-04-04 | Irvine Sensors Corporation | Cell Phone-Based Land Navigation Methods and Systems |
| CN107270888A (en) * | 2017-06-20 | 2017-10-20 | 歌尔科技有限公司 | A kind of method, device and camera for measuring longitude and latitude |
| CN207976169U (en) * | 2017-12-29 | 2018-10-16 | 四川汉星航通科技有限公司 | A kind of celestial body automatic identification equipment |
| WO2020033068A2 (en) * | 2018-06-27 | 2020-02-13 | Polaris Sensor Technologies Inc. | Celestial positioning system and method |
| CN109668629A (en) * | 2019-01-21 | 2019-04-23 | 南京泛在地理信息产业研究院有限公司 | Sunshine method for measurement based on mobile phone sensor |
| WO2020261255A1 (en) * | 2019-06-24 | 2020-12-30 | Elbit Systems Ltd. | Geolocation of head-mounted image sensor using celestial navigation |
| KR102163753B1 (en) * | 2019-09-05 | 2020-10-14 | 한국 천문 연구원 | Determination of orbit and attitude stabilization of geostationary satellite using electro-optical system |
| CN111879299A (en) * | 2020-08-17 | 2020-11-03 | 中国科学院上海天文台 | Full-automatic satellite pointing method for ground-based telescope |
Non-Patent Citations (1)
| Title |
|---|
| 陈晓红;钱晨;洪文昕;郑加金;韦玮;: "基于二维码的可见光室内定位方法及实现", 电子科技, no. 12 * |
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