CN1124470C - Precise azimuth measuring method - Google Patents
Precise azimuth measuring method Download PDFInfo
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- CN1124470C CN1124470C CN 00134368 CN00134368A CN1124470C CN 1124470 C CN1124470 C CN 1124470C CN 00134368 CN00134368 CN 00134368 CN 00134368 A CN00134368 A CN 00134368A CN 1124470 C CN1124470 C CN 1124470C
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Abstract
The present invention relates to a method for accurately measuring an azimuth, which comprises the following operation procedures: using an imaging system, pointing to a sun so as to collect sun images; reading azimuth values according to the sun images, and inputting the azimuth values of the sun to a computer; inputting coordinates of observation points and standard time to the computer by a GPS system, and calculating the accurate azimuth of each observation point by the computer. The present invention can conveniently calibrate the coordinates of equipment at any time without the limitation of time and the position of the sun, and can quickly display the accurate azimuth; precision can be improved by 1/10 DEG or 1/100 DEG, and thus, the present invention can meet the requirements of the technical field of modern scientific research, military affairs, industrial production, etc.
Description
The present invention relates to a kind of method of measuring astronomic azimuth, particularly a kind of brand-new, the accurate measuring method in orientation.
In the current highly developed epoch of science and technology, in many fields such as scientific research, military affairs, transportation and other commercial production, all need the accurate orientation and the precise height in certain object or place are recorded data in time.For example want flying objects such as survey aircraft, rocket, guided missile, position and the variation thereof of each moment on high will constantly be measured its orientation, highly, to study its speed and variation.Equipment such as mobile vehicle-mounted radar for another example everyly reaches a new place, needs to adjust rapidly own coordinate system, so that the azel of accurate measurement target.Again for example in astronomical sight research, when portable astronomical telescope arrives a new observation station, need in the short as far as possible time, drop into observation, the adjustment of equipment also needs accurate Azimuth And Elevation and shows.After wherein the orientation is determined, can determine height, so technical complexity is the mensuration in orientation according to the horizontal line and the elevation angle.Prior art direction-finding method commonly used has three kinds: one is to use compass to determine meridian line, but has both made the most accurate compass of employing, and its precision can only reach about 1 degree.The 2nd, adopt the day hachure in the moment at high noon to determine the orientation, its precision also has only several ten fens, and this method also will be subjected to the restriction of weather condition.The direction-finding of many technical fields requires to be accurate to 1/10 degree or 1/100 degree, and these two kinds of methods all can't realize.The third method is to measure the orientation of Polaris to extrapolate the orientation of measuring point.Though this method precision is higher, must carry out at night, daytime can't operation, and under situation it is pressed for time, this method can not be satisfied the demand.
The invention provides a kind of accurate measuring method of brand-new orientation, measuring accuracy can be brought up to 1/10 degree or 1/100 degree, its Measuring Time also can be not limited to high noon or night, can determine accurate orientation at any time, easily, make the comfort level of direction-finding and levels of precision can both satisfy the needs in fields such as modern scientific research, military affairs and commercial production.
The technical scheme of finishing the foregoing invention task is: a kind of accurate measuring method of brand-new orientation comprises following job step:
Imaging system is pointed to the sun, gathers sun image,
Read its orientation values according to sun image,
With the orientation values input computing machine of the sun,
By coordinate and the standard time of gps system to computing machine input observation station,
Store the astronomical software and the observation reduction software that calculate sun coordinate in the computing machine in advance, computing machine is according to this time sun coordinate values, and poor with the sun coordinate values that measures calculates the accurate orientation of measuring point.
Aforementioned calculation result can show by display system.Here said " imaging system " comprises image scanner and imaging device, image scanner can adopt simple and easy optical telescope, military big gun mirror or guiding telescope that eyepiece is reequiped slightly etc., but even also composing images harvester of simple lens.Imaging device comprise draw frosted glass that division line is arranged and digital videotape first-class.The method of gathering sun image can be: sun imaging in the frosted glass center, is read its orientation values by the coordinate indication mechanism again; Or, after Computer Processing, obtain the image center coordinate by digital stylus shooting sun image, read orientation values by the coordinate indication mechanism.The former precision can be better than 0.1 degree; The latter's precision can be better than 0.01 degree.The device that shows this result can adopt code-disc, scrambler or index dial, can select by different accuracy requirements.
This brand-new orientation accurate measuring method provided by the invention, can not be subjected to time restriction, as long as the sun appears in the air in the sky, no matter where it is in, can be at any time, the coordinate of correcting device easily, and action is quick, dozens of minutes can be finished verification work, the direction of calibration back equipment and the sensing of height can show accurate Azimuth And Elevation, precision can be brought up to 1/10 degree or 1/100 degree, and its comfort level and levels of precision can both satisfy the needs in fields such as modern scientific research, military affairs and commercial production.
Now be described further with embodiment in conjunction with the accompanying drawings.
Fig. 1 is a workflow diagram of the present invention.
Embodiment 1, with reference to Fig. 1: a kind of accurate measuring method of brand-new orientation, comprising following job step: with the image scanner in the imaging system---simple and easy optical telescope points to the sun, collection sun image, sun imaging in drawing the frosted glass center that division line is arranged, is read its orientation values by the coordinate indication mechanism according to sun image again.With the orientation values input computing machine of the sun, simultaneously by coordinate and the standard time of gps system to computing machine input observation station.Store the astronomical software and the observation reduction software that calculate sun coordinate in the computing machine in advance, computing machine is according to this time sun coordinate values, and poor with the sun coordinate values that measures calculates the accurate orientation of measuring point.Orientation values is shown that by code-disc precision is 0.1 degree.
Embodiment 2, with the image scanner in the imaging system---military big gun mirror points to the sun, by imaging device---digital stylus is gathered sun image and is imported computing machine, after Computer Processing, obtain the image center coordinate, read orientation values by the coordinate indication mechanism.Simultaneously by coordinate and the standard time of gps system to computing machine input observation station, computing machine is according to this time sun coordinate values, and poor with the sun coordinate values that measures calculates the accurate orientation of measuring point.Orientation values is shown that by scrambler precision is 0.01 degree.
Claims (4)
1, a kind of accurate measuring method of orientation comprises following job step:
Imaging system is pointed to the sun, gathers sun image,
Read its orientation values according to sun image,
With the orientation values input computing machine of the sun,
By coordinate and the standard time of gps system to computing machine input observation station,
Store the astronomical software and the observation reduction software that calculate sun coordinate in the computing machine in advance, computing machine is according to the sun coordinate values of this time, and poor with the sun coordinate values that measures calculates the accurate orientation of measuring point.
2, according to the accurate measuring method in the described orientation of claim 1, it is characterized in that: the concrete steps of said collection sun image are, with sun imaging in the frosted glass center.
3, according to the accurate measuring method in the described orientation of claim 1, it is characterized in that: the concrete steps of said collection sun image are to take sun image by digital stylus.
4, according to the accurate measuring method in claim 1 or 2 or 3 described orientation, it is characterized in that: increase following operative steps:
Show result of calculation by display system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00134368 CN1124470C (en) | 2000-12-08 | 2000-12-08 | Precise azimuth measuring method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00134368 CN1124470C (en) | 2000-12-08 | 2000-12-08 | Precise azimuth measuring method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1298091A CN1298091A (en) | 2001-06-06 |
| CN1124470C true CN1124470C (en) | 2003-10-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00134368 Expired - Fee Related CN1124470C (en) | 2000-12-08 | 2000-12-08 | Precise azimuth measuring method |
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| Country | Link |
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| CN (1) | CN1124470C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102722183A (en) * | 2012-06-15 | 2012-10-10 | 中国科学院安徽光学精密机械研究所 | Image tracking system and image tracking algorithm for double-cylinder multi-FOV (field of view) sun photometer |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1332176C (en) * | 2005-06-07 | 2007-08-15 | 中国科学院紫金山天文台 | Space-target real-time astronomical positioning method |
| CN100451550C (en) * | 2005-11-25 | 2009-01-14 | 中国科学院上海光学精密机械研究所 | High-precision polarized light navigator |
| NO20061924A (en) * | 2006-04-28 | 2007-05-07 | Sunsim As | Interactive indication of directions in images |
| JP2008281552A (en) * | 2007-04-09 | 2008-11-20 | Seiko Epson Corp | Method and program for calculating and determining first located output position, storage medium, positioning device, and electronic equipment |
| CN100592231C (en) * | 2008-03-05 | 2010-02-24 | 中国科学院国家天文台 | Full-sun area guiding method and system |
| CN103630116B (en) | 2013-10-10 | 2016-03-23 | 北京智谷睿拓技术服务有限公司 | Image acquisition localization method and image acquisition locating device |
| CN103900538B (en) * | 2014-04-14 | 2017-03-01 | 中国科学院国家天文台 | The method that ccd detector is used for Astrometric Telescope accurate measurement star place |
| CN106546231A (en) * | 2016-10-08 | 2017-03-29 | 深圳市金立通信设备有限公司 | A kind of method and terminal for realizing compass functional |
| CN115655249A (en) * | 2022-10-21 | 2023-01-31 | 维沃移动通信有限公司 | Compass calibration method and device, electronic equipment and readable storage medium |
-
2000
- 2000-12-08 CN CN 00134368 patent/CN1124470C/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102722183A (en) * | 2012-06-15 | 2012-10-10 | 中国科学院安徽光学精密机械研究所 | Image tracking system and image tracking algorithm for double-cylinder multi-FOV (field of view) sun photometer |
| CN102722183B (en) * | 2012-06-15 | 2014-03-12 | 中国科学院安徽光学精密机械研究所 | Image tracking system and image tracking algorithm for double-cylinder multi-FOV (field of view) sun photometer |
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| Publication number | Publication date |
|---|---|
| CN1298091A (en) | 2001-06-06 |
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