What is Total Station . What is it used for.

A total station is an instrument that measures angles, coordinates, and distances.

It can be calculated automatically, and in fact the total station is a combination of a theodolite and a rangefinder.

A theodolite is an instrument that measures angles and coordinates.

The most common total station can buy several theodolites!

If you compare it functionally:

The theodolite can only measure angles (vertical and horizontal).

The total station is equivalent to a combination of a level, a theodolite and a rangefinder! The functions are very comprehensive, you can measure the angle, the distance, the elevation! Lofting, Data Collection!

Total station is a measuring tool, it has far exceeded the function of theodolite, it is particularly convenient to use when measuring lofting and setting control points, the corresponding use is indicated in the manual, but if there is no skilled operator to take you, it is still a little difficult, you just need to enter the coordinates on its screen, the lens is aimed at the front end of the reflector, and its data is displayed!

The total station, that is, the electronic total station, is a high-tech measuring instrument integrating light, machinery and electricity, and is a surveying and mapping instrument system integrating horizontal angle, vertical angle, distance (oblique distance, flat distance) and height difference measurement functions. Compared with the optical theodolite, the electronic theodolite replaces the optical dial with a photoelectric scanning dial, and replaces the artificial optical micrometer readings with automatic recording and display of the readings, which simplifies the operation of angle measurement and avoids the generation of reading errors. Because it can complete all the measurement work on the station by placing the instrument at one time, it is called a total station.

It is widely used in the field of precision engineering measurement or deformation monitoring such as large-scale above-ground buildings and underground tunnel construction.

The difference between a total station and an optical theodolite is the dial reading and display system, and the horizontal and vertical dials of the electronic theodolite and their reading devices are respectively measured by (coding discs) or two identical grating dials and reading sensors. According to the angle measurement accuracy, it can be divided into several grades, such as 1, 1, 2, 3'', 5, 7'', etc.

It's a matter of coordinate geometry...

The three parameters of horizontal angle, vertical angle and distance determine the position of the point in space.

The following is too complicated, which is the principle of angle and ranging!! 1

Total station is a set of optical, mechanical, electrical as one of the new type of angle measuring instrument, compared with the optical theodolite electronic theodolite will be optical dial for photoelectric total station scanning dial, the artificial optical micrometer reading instead of automatic recording and display of reading, so that the angle measurement operation is simplified, and can avoid the generation of reading error. The automatic recording, storage, and calculation functions of the electronic theodolite, as well as the data communication function, further improve the degree of automation of the measurement operation.

The difference between the total station and the optical theodolite is the dial reading and display system, the horizontal and vertical dials and the reading device of the electronic theodolite are respectively using two identical grating dials (or coding disks) and reading sensors for angle measurement. According to the angle measurement accuracy, it can be divided into several grades, such as 1, 2, 3, 5, 10, etc

To put it simply, it is a theodolite plus a rangefinder, plus some calculation applets!

Everything is the same, it's just a trigonometric function.

A total station is one that can automatically measure angles and distances, and can transmit the measurement data to the corresponding data collector according to a certain program and format. The total station has a high degree of automation, many functions and good accuracy, and the measurement data collected in the field can be directly entered into the computer for data processing or into the automated drawing system by configuring the appropriate interface.

The working principle of the total station is divided into the principle of angle measurement and the principle of distance measurement. Measurement is the use of mathematical plane geometry, three-dimensional geometry, combined with ranging data to calculate the distance of other sides, and related angles. Inside the goniometric and ranging programs, knowledge such as differentiation and integration is mainly applied.

The angle measurement part uses "angle dial + angle sensor" to obtain the digital data of the angle; The ranging part is exactly the same as the photoelectric rangefinder, and most of them are realized by electromagnetic wave phase measurement technology.

The total station, that is, the electronic total station, is a high-tech measuring instrument integrating light, machinery and electricity, and is a surveying and mapping instrument system integrating horizontal angle, vertical angle, distance (oblique distance, flat distance) and height difference measurement functions.

Key features of the total station:

1. Angle measurement function: measure horizontal angle, vertical angle or zenith distance;

2. Ranging function: measure the horizontal distance, oblique distance or height difference;

3. Tracking measurement: that is, tracking ranging and tracking angle measurement;

4. Continuous measurement: angle or distance are measured continuously or continuously at the same time.

It is mainly used in construction:

1. Distance lofting.

The difference between the design distance and the actual distance can be compared, and the design distance can be quickly put into the field.

2. Coordinate lofting.

If the coordinates of the instrument point and the coordinates of the backsight point are known, or the coordinates of the instrument point and the azimuth angle of the backsight are known, the three-dimensional coordinate lofting can be carried out, and the coordinate transformation can also be carried out if necessary.