SU1133965A1 - Method of recording geodetic information in topographic suurveying of teerrain - Google Patents

Abstract

THE METHOD OF REGISTRATION OF GEOPHYSICAL INFORMATION DURING TOPOGRAPHIC SURVEY SHOOTING, is concluded in the polar coordinates on the information carrier of the spatial position of the point being shot, of the length and length. So that, in order to increase labor productivity during registration of information / and automate its reading and processing process, service information and information about the height of the survey are recorded as conventional values of radius vectors that orient and lay on the information carrier at a fixed angle to the line of sight at the point to be removed. (L

Description

The invention relates to the field of topographic measurements, and more specifically to the field of automated topographic survey, carried out using a measuring instrument (theodolite-tacheometer) connected to a table for mapping.

The aim of the invention is to increase labor productivity in recording geodetic information and fully automate its reading and processing process.

In order to achieve this goal, in the method of registering geodetic information in topographic surveys of a terrain, consisting in recording in the polar coordinates on the information carrier the spatial position of the point being shot, the service information and the information about the height of the survey are recorded as conditional values of radii - vectors that orient and lay on the information carrier at a constant angle to the line of sight at the point to be removed.

Introduction of the registration of information about the height of the survey and service information in the form of conventional values of the radius vectors makes it possible to reduce the cost of manual labor and to register all the geodetic information in a single form - in the form of polar coordinates, which allows you to fully automate its entire office process. reading and processing.

FIG. Figure 1 shows a general view of a total station connected to a table for mapping; in fig. 2 - a fragment of a ruler for coding measurement and service information; in fig. 3 is a diagram of the arrangement of scales on a ruler for encoding information.

A device for carrying out the proposed method for recording geodetic information is a measuring instrument 1, for example, a total station (Fig. 1), connected to a table 2 for mapping and mounted on a tripod 3. Table 2 is equipped with a ruler A with scales of coded features and coded information fixed on the stripper 5, on which the device 6 for puncturing points is mounted, the device 7 for marking points corresponding to the encoded

information, and a scale ruler 8. Device 7 is made similar to device 6 and has a marker instead of a needle, for example in the form of a triangle.

The working surface of the mapping table 2 is covered with a dyeing layer, for example a copy paper (not shown, on which the information carrier 9 is placed, for example, a drawing base, which is a dacron plastic matted on both sides.

Line 4 for encoding geodetic information (Fig. 2) has, for example, seven interchangeable keys, where scale 10 is used for encoding measurement and service information signs, scales 11, 12, etc. - to encode the measurement information about the height of the survey.

FIG. 3, the scales 10, 11, 12, and 13 correspond to the KF, FE, ED, and DC segments, and the identifier of the encoded information is the angle between the directions of the line of sight 14 to the point and the radius vector (starting at point A.).

The boundary values of the radius vectors for the encodings of coded features. correspond to the segments AK and AF, and for scales of encoded information - AF, - YU; AE, AD; AD and AC. The marking device used may be designed to mark points on the front (top) side of the carrier.

Coding tables 1 and 2 have been developed for coding information about the height of the survey and service information.

In tab. 1 shows the conventional values of the radius vectors for characters coded; in tab. 2 — conditional radius sector values for the encoded information. In columns 5 of table 1 and 2 shows the value of the identifier of the encoded information.

In accordance with the conventional conditional values of the radius vectors, the scales of the ruler 4 are made to encode the measurement information about the height of the survey and the service information.

The proposed method for recording geodetic information is carried out as follows. 1 In the course of production of surveying operations, by means of a total station 1, connected to table 2, a sighting is performed on a rail mounted on a determined point of the terrain. The direction of sighting is transmitted to the drawing base of the table 2. The horizontal distance measured by the optical method is set on the scale bar and the position of the point to be removed is fixed on the drawing line; Based on pressing the button, the needles of the puncturing device 6 .. Measure the transcend point (or vertical-angle), select from the table the corresponding conditional value of the radius-vector, put its value on the drawing basis, fix the puncture point by pressing the button of the marker 7 In this case, the radius vector is oriented at an angle of 180 to the line of sight at the shooting point by presetting the marking device 7 behind the starting point of the radius vector (the center of rotation of the information carrier). They are arched with a triangle symbol. Then, in accordance with the type of service information about a point, the corresponding conditional values of the radius vectors from Tables 1 and -2 are selected from their values on a drawing basis (the orientation of the radius vector is not change), fix them with puncture points by means of a marker, tool 7, then mark with a conventional sign in the form of a triangle. Thus, all geodetic information about the point of the terrain will be presented on a drawing basis graphically as unmarked and unmarked marked puncture points. For example, a point is taken which is characterized by the following features: a) the measuring information on the height of the survey, the distance from the camera to the point being determined is 60.0 m; elevation of the designated point +1.00 m; b) service information about the object to which the defined point belongs to the 5th class of the object — hydrography; type of object - a spring; the purpose of the object is drinking. In the process of production of survey works by means of a measuring instrument (theodolite-total station), connected to a cartographic table, in which the marking device is installed behind the starting point of the radius vector, i.e. Of 180, the performer places the instrument above the shooting point, centers and levels it. On a cartographic table 2, the carbon paper is fixed with a dye layer up and on it a data carrier 9, for example, a drawing base, which is a polyester plastic, frosted on two sides. Lead the tool onto the rail mounted above the point to be determined, and a horizontal distance is determined by long-range yarns, which is 60.0 m. At the same time, the angle, for example, f lO IOOu, i.e. the direction of the line of sight is transmitted to the drawing base 9. The measured horizontal distance r is set on the scale bar 8 by combining the reference index of the device 6 against the corresponding stroke of the scale bar 8, and the position of the determined point is fixed on the drawing base 9 by pressing the button of the pins needles of device 6 Position-Def. the split point M is given by the polar coordinates r, j. Next, an excess point of +1.00 m is determined, and in accordance with the obtained value, a reference index of fixture 7 is set against the corresponding scale indices for encoding information on the height of the shooting line 4 and fixed on the drawing base by pressing the fixture marker button. 7. At the same time, on the reverse side of the drawing base, an imprint is obtained in the form of a marked point N, where the position of the marked point is determined by the polar coordinates cf. In accordance with service information about a point, for example, a drinking water source, and in accordance with the class of service information to be coded -. 511 hydrography — sets the counting index of fixture 7 sequentially against the corresponding indexes of the scales for coding overhead information: the hydrograph has a drinking spring and is fixed on the drawing base by pressing the button of the marked fixture 7, -The position of the overhead coding point will be determined polar coordinates g,, g. As a result of field work, the position of the determined point, measuring information on the height of the survey and service information will be presented on a drawing basis in the form of puncture points and marked points having polar coordinates r, r /, during the office processing of the drawing basis, the coordinates are automatically read puncture and labeled points, while for the points we get the coordinates, for example, in a rectangular coordinate system. To decode the measurement information on the height of the survey and the service information, it is necessary to move from the coordinates R to the rectangular system to the polar coordinates. To do this, calculate by the formula (1; polar coordinates are g n f te (7 .. -Hy. Y X ...,-XV. -Y t and sinp / where tgf. Is the angle at the designated and coded points; 5 G; - radius vector to definable and / or coded points. By the formula (1), for each definable and coded point I and T ;, Automatically, using the appropriate algorithms, these points are identified by sorting the values. Then choose the points , for which all values are equal taking into account the identifier of the encoded information. Thus, the measuring and service information is obtained in the form The e polar coordinates of g, g, g, dd, r, j, and f, whose values are identified by the content of the graphs of Tables 1 and 2 with a semantic meaning. Comparing the obtained values of the radius vectors g with the given ones, that the determined point belongs to the terrain object belonging to the hydrographic class, namely, the drinking spring and is a point with an excess of +1.00 m. The considered sequence of actions for recording geodetic information can be changed for specific areas, i.e. encoded only measuring or just. Gebna information. The increments of the scales can be changed in any acceptable range for further processing. Thus, the proposed method ensures the recording of all geodesic information in a single form on the same information carrier (drawing basis) with minimal expenditures of manual labor directly in field conditions. This makes it possible to fully automate the office process of processing drawing bases by scanning the carrier and subsequent processing on a computer.

Coded features

Type of information being encoded. Measuring G overshoot Elevation Place zero Vertical angle Service Hydrography Communications Highways Bridges and crossings Va, cc

Table

Conditions Identification Values

; kodiradiu; century-century; My tori

 encodable recognitions 1 cov T g, mm AK; 265, U 18U 264.5. 264.0 263.5 - 250.0 249.5 249.0 248.5 AF

table 2

Metric values

Degree Values

Object type

Dying down

Drinking Mineral

180

99.0

 Au

Mark

Place well / 1

BepmuKa / ibHbiu yzo / t

Hydrograu and

Communications

W

Highways

X

Metric bridges and crossings

+ Shnmeni

0.50 /;

0.0

h

-0.6Q ° C

OWOO value

OOOW

uz.Z

12

X

B

/ j

/

ф.З

Claims (1)

SHOOTING AREAS, which consists in registering in polar coordinates on a storage medium the spatial position of the surveyed point, which is due to the fact that, in order to increase labor productivity in registering information and automating the process of reading and processing it , service information and information about the high-altitude part of the survey is recorded in the form of conditional values of the radius vectors that orient and lay on the information carrier at a constant angle to the line of sight at the point being surveyed.