Theodolite positioning is not shown at latitude and longitude 5

First of all, it is explained that the theodolite positioning does not show longitude and latitude, but records the angle data from the observation point to the known reference, including horizontal and vertical angles.

Theodolite is a kind of geodetic instrument, including optical theodolite and electronic theodolite, which is the main instrument for measuring azimuth angles, and can measure horizontal angles, vertical angles and distances.

Theodolite is a commonly used engineering measuring instrument, there are optical theodolite and electronic theodolite, optical is now basically eliminated, because the reading is complex, and the error is larger, now the electronic theodolite is commonly used, only you set up the machine, set a reference point, the reading is set to zero, and then rotate to another measurement point, the instrument will automatically display the angle between the two points. The theodolite can only be used to measure the horizontal angle and vertical angle, and if the distance cannot be measured, a rangefinder should be installed to measure the distance, or a total station should be used.

Oh, theodolite positioning, not to show the latitude and longitude, but through, calculate the coordinate azimuth of the lofting point, through the coordinate azimuth, calculate the angle between the lofting point and the known edge. By dialing the angle, the direction of the lofting point is obtained, and the distance between the point to be put and the known point of the erection station is calculated by the coordinates of the point to be released, and the distance is measured in the direction determined by the theodolite by the steel ruler, and the staking can be done. The theodolite can only accurately measure the angle and roughly measure the distance.

No, theodolite positioning is based on a known straight line and a point on it using angles.

Theodolite is used for angular observation in measurement, including horizontal angle measurement and vertical angle measurement.

1. Definition of horizontal angle.

The angle between two spatial straight lines projected on the horizontal plane from a point is the dihedral angle, which is called the horizontal angle. Its range: 0° 360° clockwise.

2. Definition of vertical angle.

The angle between the target's line of sight and the horizontal line in the same vertical plane is called the vertical angle. Its range is between 0° and 90°. As shown in the figure, when the line of sight is above the horizontal line, the vertical angle is positive, which is called the elevation angle; Conversely, when the line of sight is below the horizontal line, the vertical angle is negative, which is called the depression angle.

Senior Engineer Lectures on Geography Grade 7 (First Year of Junior High School) Volume 1 Chapter 1 Earth and Map Section 1 Earth and Globe 2 Longitude, Latitude and Positioning.

I'd like to know too, but it should show latitude and longitude.

Longitude and latitude coordinates are: geographic coordinates, spherical coordinates that use latitude and longitude to represent the location of ground points. The geographic coordinate system takes the earth's axis as the polar axis, and all planes passing through the earth's north and south poles are called meridians.

Geographic coordinates are spherical coordinates that use latitude and longitude to represent the location of points on the ground. In geodesy, there are three formulations of latitude and longitude in a geographic coordinate system: astronomical latitude and longitude, geodetic latitude and longitude, and geocentric latitude and longitude.

Applications:

With the development of high technology, people have put forward higher requirements for the accuracy of determining the location of air targets, for example, the geographical coordinates of radar monitoring target locations have been widely used in various scientific and technological fields. However, in practical applications, according to different design and calculation requirements, combined with the characteristics of various coordinate systems, it is necessary to convert the geographic coordinates in order to facilitate the use and auxiliary decision-making.

For example, in geodesy, astronomical latitude and longitude are commonly used to define geographical coordinates; In cartography, geographic coordinates are defined by geodetic latitude and longitude, while in cartography research and small-scale cartography of cartography, the ellipsoid is usually regarded as a regular sphere and the geocentric latitude and longitude are used.

A theodolite is a tool used to measure horizontal and vertical angles, mainly for triangulation.

It is an important tool in surveying and engineering work, especially in hard-to-reach places. However, it is sometimes used in weather and rocket launches.

A theodolite has a telescope, the mechanical part of the telescope that allows the telescope to point in different directions. The theodolite has two perpendicular shafts to adjust the azimuth and horizontal height of the telescope. This type of platform has a simple structure and low cost, and is mainly used with terrestrial telescopes (geodesy, bird watching, etc.).

The role of each part of the theodolite.

1) Alignment part braking spiral: fix the alignment part, so that it can not move in the horizontal direction of the alignment part micro spiral: make the alignment part do a small rotation in the horizontal direction, so as to accurately align the target.

2) Telescope braking spiral: braking the telescope so that the telescope cannot rotate in the vertical direction.

3) Telescope micro-motion spiral: make the telescope rotate slightly in the vertical direction.

4) Vertical plate indicator horizontal tube micro spiral: adjust to make the vertical plate indicator in the correct position.

5) Shaft seat fixed spiral: fixed alignment part.

Longitude and latitude query and positioning can be realized through the open platform of the map. Open the map to enter the open platform, and then select the coordinate picker to enter. Enter the location in the page that appears to see its specific latitude and longitude coordinates.

The specific query method is as follows:

1. Enter the map on the computer, find its official ** and click to enter.

2. After entering the map, click on the open platform at the bottom.

3. After the page jumps, enter the map open platform, and click the coordinate picker at the bottom to enter.

4. Enter the location that needs to be located or click the mouse to locate the location in the page that appears.

5. At this time, you can see the specific latitude and longitude coordinates of the location to be located.

East longitude is positive, west longitude is negative. From the left to the right of the slow cave macro, the east longitude is getting bigger and bigger, and the west longitude is getting smaller and smaller.

North latitude is positive and south latitude is negative. From the bottom up, the latitudes of the Northern Hemisphere are getting larger and the latitudes of the Southern Hemisphere are getting smaller.

The longitude of the prime meridian is 0°.

Eastern and Western Hemispheres: 20°W-160°E Eastern Hemisphere; 160°E-20°W Western Hemisphere.

Classification of medium, low and high latitudes: areas with a disturbed value between 0 and 30 degrees are called low latitudes; Areas with latitude values between 30 and 60 degrees are called mid-latitudes; Areas with latitude values between 60 and 90 degrees are called high-latitude trivia.

Take Google Maps as an example:

2. Open Google Maps, enter latitude and longitude in the search box, and separate them in English. Just click Search. Here we use latitude and longitude:, as an example to search. But Google Maps positioning is less precise.

3. The most accurate way is to imitate the Google Earth software. Open Google Earth and enter latitude and longitude in the top left corner. Note: You need to make sure that the network connection is working.

Summary. Latitude and longitude positioning.

Select "Pick Up Missing Bid Search System"3In the input box of the pop-up window, enter the location that Peihe wants to locate, and click "One"4Click on the red dot and the exact latitude and longitude of the retrieval location will appear in the upper right corner of the page.