JPH08178657A - Surveying device - Google Patents

Abstract

PURPOSE: To enable a surveying chart to be automatically prepared by distance- measuring observation point by means of a light wave range finder. CONSTITUTION: A light wave range finder 5 is rotatively provided via an XY table 4 above a flat plate 1 on which a chart 8 is placed, and a light wave range finder 5 is provided with a plotting means for rotating together with the light wave range finder 5 and plotting on the chart 8 based on the distance- measured data by means of the light wave range finder 5. As a result, the plotting means automatically plots the observation points of the chart 8 on the flat plate 1 by distance-measuring the observation points by means of the light wave range finder 5 only, artificial plotting is not required, and thereby surveying with high precision can be easily obtained.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a surveying device capable of automatically writing measured observation points on a drawing sheet.

[0002]

2. Description of the Related Art Conventional methods for measuring topography include
There are direct centerline survey method and triangulation method, and both methods use surveying machines such as transit and light wave rangefinder.

In the above-mentioned light wave range finder, a light wave range finder installed at a measuring point emits a light wave of a certain wavelength toward a reflecting mirror installed at an observing point, and the light wave reflected by the reflecting mirror is measured by the light wave range finder. The light is received by a ceremonial body, and the distance is calculated from the phase difference between the reflected waves.

In the case of creating a plan view of a terrain or the like based on the distance measured by an optical wave rangefinder, flat plate surveying is often used conventionally.

This flat plate surveying is a surveying work in which the observation points are plotted on a drawing sheet on a flat plate while measuring the observation points by a light wave distance measuring device, and a flat surface is directly created on the spot.
It has the advantages of being able to prevent errors due to negligence in surveying and being able to deal with diversification of surveying.

[0006]

However, in the conventional flat plate surveying, since the surveyor artificially writes the observation points measured by the optical rangefinder on the drawing sheet, much time is required for surveying and drawing. In short, the work efficiency was poor, and there were problems such as errors due to entry errors.

The present invention has been made in order to improve such a problem, and provides a measuring device capable of automatically writing a measured distance measurement point on a drawing sheet so that an accurate survey map can be obtained in a short time. It is intended to be obtained at.

[0008]

In order to achieve the above object, the present invention provides a lightwave distance measuring device rotatably above a flat plate on which a drawing paper is placed via an XY table, and the above-mentioned lightwave distance measuring device. The mount is provided with a plotting means that rotates integrally with the optical rangefinder and draws on the drawing sheet based on the ranging data measured by the optical rangefinder.

[0009]

With the above structure, the drawing means automatically draws on a flat sheet of paper by measuring a plurality of observation points with the light wave distance measuring device, so that it is not necessary to artificially draw during surveying.

Also, since there are no human errors during drawing,
Highly accurate survey maps can be obtained.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a perspective view of a measuring device, FIG. 2 is an exploded perspective view of the same, FIG. 3 is a perspective view of an XY table, FIG. 4 is a sectional view of drawing means, FIG. 5 is a block diagram of a control unit, and FIG. It is explanatory drawing at the time of surveying.

In these figures, reference numeral 1 is a flat plate, and a tripod 3 is attached to the central portion of the lower surface thereof via a leveling mechanism 2.

An optical distance measuring device 5 is installed above the flat plate 1 via an XY table 4. The XY table 4 supports the optical distance measuring device 5 movably in the X and Y directions, and has an X-axis guide rod 4a parallel to one side of the flat plate 1 as shown in FIGS. Both ends of the X-axis guide rod 4a are fixed to both measurement surfaces on one end side of the flat plate 1 via brackets 4b bent in a crank shape.

On the X-axis guide rod 4a, an approximately L-shaped X-axis slider 4c is non-rotatably mounted so as to be slidable in the X-axis direction. One end side of a pair of Y-axis guide rods 4d is fitted in the upper portion in the Y-axis direction orthogonal to the X-axis guide rod 4a.

A Y-axis slider 4e is slidably fitted in the Y-axis guide rod 4d in the Y-axis direction.

A disk-shaped base 4f is fixed to the upper surface of the Y-axis slider 4e, and the lower part of the lightwave distance measuring device 5 is rotatably attached to the center of the base 4f via a rotation shaft 4g. Has been.

The above-mentioned light wave distance measuring device 5 has a structure similar to the conventional one for measuring the distance from an observation point from the phase of emitted light and reflected light, and a collimating plate (alidade) 6 is projected on the upper surface.

On the other hand, a centripetal 7 is attached to the outer peripheral surface of the base 4f. This centripetal 7 is to match the measurement points on the drawing sheet 8 placed on the flat plate 1 with the measurement points on the ground. The centripetal body 7a bent in a substantially U-shape and this centripetal body 7
It is composed of a weight 7c and a weight 7c hanging from the tip of a through a filamentous material 7b.

As shown in FIG. 2, a rotary shaft 4g which rotates integrally with the above-mentioned optical distance measuring device 5 has a base 4f and a Y-axis slider 4 as shown in FIG.
The mounting plate 10a of the drawing means 10 is attached to the lower end of the Y-axis slider 4e so as not to rotate by the key 10b.

The drawing means 10 is constituted by a printer or plotter which plots observation points on the drawing paper 8 placed on the flat plate 1 to automatically draw a plan view, as shown in FIG. It has a rectangular case 10c.

A guide rod 10d is provided in the longitudinal direction in the case 10c, and a print portion 10e is slidably supported on the guide rod 10d. Above guide rod 1
Pulleys 10f and 10g are rotatably supported near both ends of 0d, and an endless belt 10h rotated by a feed motor 11 is wound around these pulleys 10f and 10g.

A part of the endless belt 10h is fixed to the printing portion 10e, and by rotating the endless belt 10h by the feed motor 11, the printing portion 10e can be freely moved along the guide rod 10d. In addition, the feed motor 11 can be controlled by the control unit 12 shown in FIG.

The control unit 12 is composed of, for example, a microcomputer, and stores the distance measurement data fetched from the lightwave distance measuring device 5 in the memory 13 and outputs it to the display unit 14 to display it on the screen, or the drawing means 10 described above. By outputting the plot mark to the drawing paper 10e and controlling the movement of the printing unit 10e, the plot mark inputted in advance is printed on the drawing paper 8 on the flat plate 1 and the plan view is operated.

Reference numeral 16 in FIGS. 1 and 2 designates an X-axis slider 4.
a fixed knob for fixing c to an arbitrary position of the X-axis guide rod 4a,
Reference numeral 17 denotes a knob for fixing the Y-axis slider 4e at an arbitrary position on the Y-axis guide rod 4d.

Next, the operation will be described with reference to the flow charts shown in FIGS.

At the same time when making a plan view while measuring with the optical distance measuring instrument 5, first the flat plate 1 is installed horizontally at the measuring point using the leveling mechanism 2, and then the X-axis slider 4 is used.
c is moved in the X-axis direction, and the Y-axis slider 4e is moved in the Y-axis direction, so that the weight 7c of the centripetal 7 is adjusted so as to match the reference point 18 previously set on the ground surface, and when they match, the fixed picker Tighten 16 and 17 to fix the X-axis slider 4c and the Y-axis slider 4e.

Next, in step S1, the scale is input to the control unit 12 as a four-digit integer, in step S2 a value obtained by adding the mechanical height (MH) to the altitude (GH) is input, and in step S3, the front sight (FS) is input. ), And in step S4, the print range of the plan view to be created on the drawing sheet 8 is numerically input.

Further, in step S5, a plot mark used for drawing is selected, and in step S6, normal distance measurement or +20 cm distance measurement is input.

When the rangefinder 5 is attached to the center of rotation, the normal rangefinder is input, but when the rangefinder is offset by 20 cm with respect to the center of rotation as in the above embodiment, it is +20 cm. Enter the distance measurement.

When the necessary conditions are input as described above, a plurality of previously set observation points are collimated using the light wave distance measuring device 5 in step S6 to measure the distance.

For distance measurement at the observation point, a reflecting mirror 20 is installed at the observation point 19 as shown in FIG. , Lightwave rangefinder 5
Fires a more constant lightwave rangefinder.

This light wave is reflected by the reflecting mirror 20 and is incident on the light wave distance measuring instrument 5, and the light wave distance measuring instrument 5 measures the distance to the first observation point 19 from the phase of the emitted wave and the incident wave and measures the distance. The data is sent to the control unit 12.

The control unit 12 stores the input distance measurement data in the memory 13 and at the same time outputs it to the display means 14 for display, and at the same time, feed motor 11 according to the scale input in advance.
Is controlled to move the printing unit 10e of the drawing means 10 to print the printing mark selected at the time of input on the drawing paper 8 in step S7. When the distance measurement of the first observation point 19 is completed, the light wave distance measuring device 5 is rotated around the rotation axis 4g toward the next observation point, and the drawing means 10 is also rotated in conjunction with the light wave distance measuring device 5. Therefore, the distance between a plurality of observation points is successively measured by the same method as described above, so that the drawing sheet 8 on the flat plate 1 can be obtained.
The observation points can be plotted on a predetermined scale, and the plan view can be automatically created on the drawing paper 8 only by the operation of measuring the observation points by the light wave distance measuring device 5. .

[0035]

As described in detail above, according to the present invention, the distance between the observation points is automatically measured by using the light-wave rangefinder, and the observation points are automatically moved to the scale entered in advance on the flat paper. Filled in,
Since the plan view is created, it is not necessary to artificially enter the observation points on the drawing paper in advance to create the plan view as in the conventional case.

As a result, the surveying and plotting work can be performed efficiently in the end time, and since a human error is eliminated, the surveying map with high accuracy can be easily obtained.

Further, the surveying data is stored in the memory of the control unit in advance, and when necessary, the data can be called from the memory for drawing or as a material, so that the operability is very good.

[Brief description of drawings]

FIG. 1 is a perspective view of a surveying instrument according to an embodiment of the present invention.

FIG. 2 is an exploded perspective view of a surveying instrument according to an embodiment of the present invention.

FIG. 3 is a perspective view showing an XY table of the surveying instrument according to the embodiment of the present invention.

FIG. 4 is a drawing showing a drawing means of a surveying instrument according to an embodiment of the present invention.

FIG. 5 is a block diagram showing a control unit of a surveying instrument according to an embodiment of the present invention.

FIG. 6 is an explanatory view showing an operation of the surveying instrument according to the embodiment of the present invention.

FIG. 7 is a flowchart showing the operation of the surveying instrument according to the embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Flat plate 4 XY table 4e Y-axis slider 5 Lightwave distance measuring device 7 Centripetal device 8 Drawing paper 10 Drawing means

Claims (3)

[Claims] 1. A light wave distance measuring device is rotatably provided above a flat plate on which a drawing paper is placed via an XY table, and the light wave distance measuring device rotates integrally with the light wave distance measuring device, and A surveying device comprising a plotting means for plotting on the above-mentioned drawing sheet on the basis of the ranging data measured by the lightwave ranging instrument. 2. The surveying instrument according to claim 1, wherein a centripetal unit is attached to the Y-axis slider of the XY table. 3. The surveying instrument according to claim 1, wherein the plotting means comprises a printer or plotter for plotting based on the distance measurement data.