JPH09159449A - Surveying method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily perform a triangulating operation by a method wherein a surveying image which is captured from an ocular part for collimation is image-processed, the amount and the direction of the deviation of a surveying rod with reference to a collimation point are deticted so as to be transmitted by radio to the side of the surveying rod and the surveying rod is moved. SOLUTION: A CCD camera 2 is attached, via an adaptor, to an ocular part for collimation at a surveying optical instrument 1. A surveying image which is captured by it is image-processed by an image recognition and dislocation detection circuit 3, and the amount and the direction of the deviation of a surveying rod 10 with reference to a collimation point 11 are detected as digital data. The data is transmitted from an antenna 6 via a radio digital-data transmitter-receiver circuit 4. On the side of the surveying rod 10, the data is received via an antenna 7 by a radio digital-data transmitter-receiver circuit 8 so as to be displayed on an image display circuit 9. On the basis of its display, the surveying rod 10 is moved so as to perform a triangulating operation. Thereby, an expert operator is not required on the side of the instrument 1, and the triangulating operation is performed easily.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to so-called triangulation, and more particularly, to the amount of deviation of a surveying rod from a reference point by image-processing a surveying image captured from a sighting eyepiece in a surveying optical machine. While the direction is detected as digital data, it is wirelessly transmitted to the surveying rod side by radio waves.On the other hand, on the surveying rod side, triangulation is performed with the surveying rod moved based on the amount and direction of the deviation received. It is related to the surveying method that was carried out.

[0002]

2. Description of the Related Art Up to now, triangulation has been carried out in the state where specialized workers are always arranged on the surveying optical machine side and the surveying rod side, respectively. That is,
On the surveying optical machine side, the deviation of the surveying rod with respect to the reference point is visible, but this deviation is always instructed to the surveying rod side. Then, on the side of the surveying rod, the surveying rod was moved based on the instruction, and the triangulation was performed. As a technique related to this type, for example, Japanese Utility Model Laid-Open No. 64-6510, "Remote collimation device for surveying optical machine" can be mentioned. In this case, the collimation eyepiece in the surveying optical machine is CC
A D camera and the like are attached. That CC
The surveyed image detected by the D camera or the like is remotely transmitted by wire and is displayed on the monitor.
Remote collimation is allowed.

[0003]

However, in the case of the above-mentioned publication, since the image transmission and display is carried out by wire, it is applicable only when the distance between the surveying optical machine and the surveying rod is relatively small. It has been done.
In other words, when the distance between the surveying optical machine and the surveying rod frequently changes within a range of several hundred meters, the image transmission and display must rely on the wireless transmission method. . However, even if it is based on the wireless transmission method, if it is a low-power analog wireless transmission device that does not require wireless worker qualification, the transmission distance is at most tens of meters and the image quality itself cannot be denied. Has become. In addition, a specific low-power wireless device (digital data of 2400 bits /
It is considered that a device having a transfer capability of seconds is actually commercialized. However, in this case, about 1 minute transmission time is required even for 1 frame / second data in the NTSC system. An object of the present invention is to quickly perform triangulation without requiring a special operator on the side of the surveying optical machine even when the distance between the surveying optical machine and the surveying rod frequently changes within a range of several hundred meters. In addition, there is a surveying method that can be easily performed.

[0004]

The above-mentioned object is basically to detect the amount of deviation of a surveying rod from a reference point by image-processing a surveying image captured from a collimating eyepiece in a surveying optical machine. While the direction is detected as digital data, it is wirelessly transmitted to the surveying rod side by radio waves, while on the surveying rod side, the triangulation is performed with the surveying rod being moved based on the amount and direction of the received deviation. Is achieved by performing.

[0005]

FIG. 1 is a block diagram showing an embodiment of the present invention.
3 will be described with reference to FIG. Now, FIG. 1 shows a concept of a triangulation method in an embodiment of the invention including a surveying optical machine and a surveying rod, FIG. 2 shows details of the surveying optical machine side, and FIG. Similarly, the details on the side of the surveying rod are also shown, but the method is conceptually as follows.

That is, for example, a CCD camera 2 can be attached to the collimating eyepiece of the surveying optical machine 1 via an adapter, but the surveyed image captured by the CCD camera 2 is recognized and displaced. By the image processing in the calculation circuit 3, the surveying rod 10 with respect to the reference point 11
The amount and the direction of the deviation are detected as digital data. The amount and direction of the deviation thus detected are transmitted from the antenna 6 to the surveying rod 10 side via the wireless digital data transmitting / receiving circuit 4, but the surveying rod 10
On the side, the amount and direction of these deviations are received by the wireless digital data transmission / reception circuit 8 via the antenna 7 and can be displayed on the image display circuit 9. Therefore, when the surveying bar 10 is moved based on the deviation display and then the triangulation is performed, the triangulation can be performed promptly and easily without requiring a special operator on the surveying optical machine 1 side. Is.

Basically, the triangulation can be carried out as described above. At that time, under the remote monitoring control by the radio wave from the surveying rod 10, the magnification rate of the captured image in the surveying optical machine 1 and the The direction of image capture by the direction detection / drive circuit 5 may be updated so that it can be actively controlled. On the side of the surveying rod 10, the image near the surveying point transmitted in advance by radio waves from the surveying optical machine 1 is used as the background, and the surveying rod 10 and the reference based on the amount and direction of the received deviation on the background. The position of each point 11 may be displayed in an animated state together with the north-south information, and the survey stick 10 may be moved.

[0008]

As described above, in any of claims 1 to 4, the distance between the surveying optical machine and the surveying rod frequently changes within a range of several hundred meters. However, triangulation can be performed quickly and easily without the need for a specialized operator on the surveying optical machine side.

[Brief description of the drawings]

FIG. 1 is a diagram illustrating a method concept of triangulation in an embodiment of the invention, including a surveying optics and a surveying rod.

FIG. 2 is a diagram showing details of the surveying optical machine side.

FIG. 3 is a diagram showing details of the surveying rod side as well.

[Explanation of symbols]

1 ... Surveying optical machine, 2 ... CCD camera, 3 ... Image recognition
Position shift calculation circuit, 4, 8 ... Wireless digital data transmission / reception circuit, 5 ... Direction detection / driving circuit, 6, 7 ... Antenna,
9 ... Image display circuit, 10 ... Surveying bar, 11 ... Reference point

Claims (4)

[Claims] 1. A surveying method used when triangulation is performed with a surveying optical machine detecting a displacement of a surveying rod with respect to a reference point and moving the surveying rod to eliminate the displacement. However, by processing the survey image captured from the collimating eyepiece in the survey optical machine, the amount and direction of the displacement of the survey rod with respect to the reference point are detected as digital data, and then on the survey rod side. On the other hand, the surveying method is such that, while being transmitted wirelessly by radio waves, on the surveying rod side, the triangulation is performed while the surveying rod is moved based on the amount and direction of the received deviation. 2. A surveying method used when triangulation is performed with a surveying optical machine detecting a displacement of a surveying rod with respect to a reference point and moving the surveying rod to eliminate the displacement. Under the remote monitoring control by radio waves from the surveying rod side, while the image capturing direction and the magnification rate of the captured image of the surveying optical machine can be updated, capture from the collimating eyepiece section of the surveying optical machine. By digitally processing the surveyed image, the amount and direction of displacement of the surveying rod with respect to the reference point are detected as digital data, and then transmitted by radio waves to the surveying rod side, while receiving at the surveying rod side. A surveying method that allows triangulation to be performed while the surveying bar is moved based on the amount and direction of the deviation. 3. A surveying method when triangulation is performed with a surveying optical machine detecting a displacement of a surveying rod with respect to a reference point and moving the surveying rod to eliminate the displacement. However, by processing the survey image captured from the collimating eyepiece in the survey optical machine, the amount and direction of the displacement of the survey rod with respect to the reference point are detected as digital data, and then on the survey rod side. On the other hand, on the side of the surveying rod, the image near the surveying point transmitted by radio wave from the surveying optical machine in advance is used as the background on the surveying rod side, and the amount and direction of the deviation received on the background. A surveying method that allows the position of each surveying bar and reference point to be compositely displayed as an animated state while the surveying bar is moved to perform triangulation. 4. A surveying method used when triangulation is performed with a surveying optical machine detecting a displacement of a surveying rod with respect to a reference point and moving the surveying rod to eliminate the displacement. Under the remote monitoring control by radio waves from the surveying rod side, while the image capturing direction and the magnification rate of the captured image of the surveying optical machine can be updated, capture from the collimating eyepiece section of the surveying optical machine. By image-processing the surveyed image, the amount and direction of the displacement of the surveying rod with respect to the reference point are detected as digital data, and the surveying rod side is wirelessly transmitted by radio waves. The image near the surveying point transmitted by radio waves from the surveying optical machine in advance is used as the background, and the position of each of the surveying rod and the reference point is animated on the background based on the amount and direction of the deviation received. A method of triangulation in which the surveying bar is moved while the synthetically displayed state is combined and displayed.