JPH0252272A - Display method of buried object detection equipment - Google Patents

Abstract

PURPOSE:To accurately measure the position of a buried body by displaying a cursor at a specific position on the screen of a B scope and displaying the distance and depth of the cursor point and the level of a reflected wave signal. CONSTITUTION:An antenna system 1 sends a radio wave toward a structure body or the ground 8 while moved along the structure body or ground 8 and a receiving antenna in the system 1 receives a reflected wave from the buried body 7. The reflected wave signal which is received is stored in a storage circuit 3 and an image of the B scope within a certain constant range is inputted to a display circuit 4 and displayed. The cursor is displayed on the screen of this B scope at the same time and the movement distance of the antenna system 1 (d) at the indicated position, the depth (t) of the buried body 7, and the level 1 of the reflected wave signal are displayed. Further, a cursor means 5 moves the cursor to change the display range of the image of the B scope of the stored reflected wave signal.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a display method for a buried object exploration device that uses radar to search for buried objects buried in structures such as concrete or the ground. be.

[Prior art]

Conventionally, an antenna that can move along the surface of a structure or the ground transmits radio waves toward the structure or the ground, and the radio waves are reflected by objects buried in the structure or the ground. The reflected wave that comes is received by the antenna, and the B scope image of the reflected wave signal is displayed on the display device.
There is a buried object exploration device that searches for buried objects from images of the B scope.

FIG. 3 is a diagram showing a display example of an image of the B scope of the buried object exploration device. In the figure, the abscissa axis 102 indicates the moving distance of the antenna that transmits radio waves, and the ordinate axis 10
3 indicates the distance from the surface of the structure or the ground to the buried object, that is, the depth. As shown in the figure, reflected echoes 101 from a buried object are displayed in a plurality of crescent shapes depending on the characteristics of the antenna.

[Problem to be solved by the invention]

As mentioned above, the conventional buried object detection device uses the reflected echo 101 from the buried object on the coordinate axis 1 with respect to the moving distance of the antenna.
02, the distance was measured using a ruler or the like on the ordinate axis 1°3 relative to the depth. Therefore, there was a drawback that it could not be easily determined by visual inspection, and furthermore, the position could not be determined accurately.

The present invention has been made in view of the above-mentioned points, and it is possible to display a cursor on the screen of the B scope, thereby making it possible to read the position of the reflected echo, and to display the distance, depth, and reflection of the position indicated by the cursor. An object of the present invention is to provide a display method for a buried object exploration device that displays the level of a wave signal.

[Means to solve the problem]

In order to solve the above problems, the present invention provides a display method for a buried object exploration device in which the reflected wave of the radio wave transmitted from the antenna toward the structure or the ground is received by the antenna, and the B of the reflected wave signal is
A buried object exploration device that displays an image of a scope includes a means for storing a reflected wave signal, a display means for displaying an image of a B scope within a certain range of the stored reflected wave signal, and a display means for displaying a cursor on the screen of the B scope. It has a cursor control means for controlling the position, simultaneously displays the position and depth of the cursor displayed on the screen of the B scope, and the level of the reflected wave signal at the position indicated by the cursor, and further moves the cursor. It is characterized by changing the display range of the B scope image of the stored reflected wave signal.

[Effect]

By using the display method of the buried object exploration device as described above, the cursor is displayed at a predetermined position on the screen of the B scope, and the distance, depth, and level of the reflected wave signal of the cursor point are displayed. It becomes possible to accurately measure the position of buried objects. Furthermore, by making it possible to scroll the screen using a cursor, the operation becomes easier, the panel surface can be simplified, and at the same time, images of the B scope can be displayed.

〔Example〕

Embodiments of the present invention will be described below based on the drawings.

FIG. 1 is a block diagram showing the system configuration of a buried object exploration device to which the display method of the present invention is applied.

In the figure, 1 is an antenna device that can move on the surface of a structure such as concrete or the ground 8 in which a buried object 7 is buried and transmits radio waves to the structure or the ground 8, and 2 is an antenna device 1. A computer 3 stores reflected wave signals, etc., for processing various commands such as commands to transmit radio waves from to the structure or the ground 8, and reflected wave signals from the buried object 7 received by the antenna device 1. 4 is a display circuit, 5 is a cursor control circuit, and 6 is a register. The antenna device 1 includes a transmitting antenna for transmitting radio waves toward the structure or the ground 8, a receiving antenna for receiving reflected waves, an oscillator, and the like (not shown). The cursor control circuit 5 also includes operation buttons 5-1, 5-2 for moving the cursor left and right, operation buttons 5-3, 5-4 for moving the cursor up and down, and the like. In the buried object exploration device having the above configuration, the antenna device 1
transmits radio waves toward the structure or the ground 8 while moving along the surface of the structure or the ground 8, and receives the reflected waves by the reception antenna in the antenna device 1. The received reflected wave signal is input to the storage circuit 3 and stored therein. A B-scope image of a certain range of reflected wave signals stored in the storage circuit 3 is input to the display circuit 4 and displayed. At the same time, a cursor C is displayed on the screen of this B scope, and the moving distance d of the antenna device 1 at the position indicated by the cursor C, and the buried object 7 are
Level of reflected wave signal at depth t1! Display.

Figure 2 is an image of the B scope at this time.

The cursor C is moved in any direction by operating operation buttons 5-1 to 5-4 and 6 for moving the cursor left, right, up, and down. By moving the cursor C to the end of the display screen of the B scope and further moving it in the same direction, the screen is scrolled and reflected wave signals outside the display range stored in the storage circuit 3 are displayed. In other words, the same operation button can be used to move the cursor C and scroll.

As a result, the console panel can be made simple and easy to operate, and at the same time, all reflected wave signals stored in the memory circuit 3 can be displayed regardless of the width of the display range, and any point on the reflected wave signal can be displayed. The level of the reflected signal can be read at a distance φ of d1 and a depth t1.

〔Effect of the invention〕

As described above, the display method of the buried object exploration device according to the present invention provides the following excellent effects.

■By displaying a cursor on the screen of the B scope and displaying the distance, depth, and level of the reflected wave signal of the cursor point, it becomes possible to accurately measure the position of buried objects.

-Furthermore, the screen can be scrolled using a cursor, which simplifies operation and simplifies the panel surface, while also making it possible to perform measurements over long distances and display images from the B scope.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing the system configuration of a buried object exploration device to which the display method of the present invention is applied, FIG. 2 is a diagram showing an example of an image of the B scope of the buried object exploration device, and FIG. 3 is a diagram showing a conventional buried object exploration device. It is a figure which shows the example of an image of the B scope of an exploration device. In the figure, 1...antenna device, 2...computer, 3...memory circuit, 4...display circuit, 5...
...Cursor control circuit, 6...Register, 7...
・Buried object, 8...Structure or earth, 101...
Reflected echo, C...Cursor.

Claims (1)

[Claims] A buried object exploration device that receives reflected waves of radio waves transmitted from an antenna toward a structure or the ground, and displays a B-scope image of the reflected wave signals, comprising means for storing the reflected wave signals; The B scope has a display means for displaying an image of the B scope within a certain range of reflected wave signals stored in a memory circuit, and a cursor control means for displaying a cursor on the screen of the B scope and controlling the position of the cursor. The position and depth of the cursor displayed on the screen and the level of the reflected wave signal at the position indicated by the cursor are displayed simultaneously, and by moving the cursor, the display range of the B scope image of the memorized reflected wave signal can be displayed. A display method for a buried object exploration device that is characterized by changing the display method.