JPH09159453A - Boundary marker with installed object to be detected - Google Patents

Abstract

PROBLEM TO BE SOLVED: To sense a position from a distant point by a method wherein an object to be detected such as a magnet or the like is installed integrally at a boundary marker made of concrete or the like and the object to be detected is detected from the distant point by a detection device. SOLUTION: An object 2, to be detected, such as a magnet, a radioactive substance, a metal or the like is installed integrally at a boundary marker 1 which is composed of a square pole material made of concrete, a plastic, a ceramic or the like. The object 2 to be detected is detected from a distant point by a detection device, and the position of the boundary marker 1 is detected. When the boundary marker 1 is mold-molded, the object 2 to be detected is insert-molded, or it is buried by making a hole, or it may be fixed by an adhesive or a screw. As the detection device, a magnetic field-to-electricity converter in which, e.g. an orientation magnet, a magnetic conversion element or the like is built is used. Thereby, the object 2 to be detected can be detected from the distant point, and wasteful labor and the wasteful consumption of the time can be omitted.

Description

Detailed Description of the Invention

[0001]

[Industrial application] Boundary markers (boundary stones, boundary piles, boundary piles, etc. that are installed at the boundary points of adjacent land and display the boundary with the adjacent land. ,
Boundary mark. ), The present invention is such that a sensing object such as a pre-magnet is integrally installed on the boundary mark.
By using the boundary marker of the present invention, if the position of the boundary marker becomes unclear due to the fact that the boundary marker is filled with earth or sand for a long period of time, the boundary marker can be easily removed from the remote point by using a sensing device. A boundary mark on which an object to be sensed is installed is provided, which is characterized in that it can be found in.

[0002]

2. Description of the Related Art Boundary marks (boundary marks) are embedded and installed at the boundary points of adjacent land incidental to the buying and selling of land, division, construction, etc. In addition, it is legally stipulated that each land owner should install the boundary marker in the presence of the land owner, and that the boundary marker should not be arbitrarily removed or moved.

On the other hand, usually, the boundary marker is often left as it is for a long period of time (for example, several years to several decades) after installation, and even a relatively new one can be used depending on the conditions of its installation place. There are many cases where the location of the soil is completely unknown because it is filled with soil or weeds grow, and it is very difficult to find it by groping for something invisible. However, conventionally, no measures have been taken to solve the above problems.

[0004]

SUMMARY OF THE INVENTION Therefore, the present invention is effective in solving the above-mentioned conventional problems by preliminarily installing an object to be detected, which can detect its position even from a remote point by some kind of sensing means, toward the boundary mark. It is something to solve.

[0005]

SUMMARY OF THE INVENTION That is, the present invention is a boundary mark in which a magnet, a radioactive substance, a metal, or any other object to be sensed is integrally installed on a boundary mark made of concrete, plastic, ceramic, stone or the like. By detecting the object to be sensed from a remote point by a sensing device, it is possible to know the position of the boundary mark at a remote point such as in the ground. It is a solution to the problem.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Explaining an embodiment of the present invention with reference to the drawings, a boundary mark made of concrete, reinforced concrete, plastic, ceramic, quadrangular prismatic material such as stone, etc., a magnet,
A boundary mark 1 in which a substance to be sensed 2 such as a radioactive substance, metal, etc. is integrally installed, and by sensing the subject 2 from a remote point by a sensing device (not shown),
The boundary mark 1 is provided with an object to be sensed, characterized in that the position of the boundary mark 1 at a remote point such as the ground can be known.

The object to be sensed 2 is mainly installed at the upper end of the boundary mark 1, but the position is not limited to this position, and the central part and other arbitrary parts are targeted. The installation means is mainly embedding by insert molding when molding the boundary mark with a material such as concrete, plastic, ceramic, etc., embedding a hole, fixing with an adhesive, screws, etc. is there.

As described above, the object to be sensed is provided separately from the boundary mark and used, and powder, particles, etc. of the object to be sensed are mixed with a material such as concrete, plastic, or ceramic and molded. Alternatively, part or all of the upper end of the pile may be the object to be sensed.

A permanent magnet is used as the magnet as the object to be sensed 2, and for example, a ferrite magnet made of a hard magnetic material,
We use Alnico magnets, metal magnets, plastic magnets that combine them, rubber magnets, etc.

The magnet sensing device is, for example, an azimuth magnet, or a magnetic conversion element (Hall element, Hall IC, magnetoresistive element, magnetic element) that produces a Hall effect, a magnetoresistive effect, or the like by applying a magnetic field to a semiconductor. A magnetic field-electric converter (magnetic sensor, magnetic transducer, etc.) that incorporates a diode, magnetic transistor, etc. is used.

The radioactive substance used as the object 2 is, for example, a radioisotope having a long decay half-life that does not adversely affect the human body.

As the radioactive substance sensing device, for example,
A radiation detection tube, a proportional counter, a GM counter (Gaiga counter), etc. are used.

As the metal to be sensed, a ferromagnetic iron-based metal is mainly used,

As the metal sensing device, for example, a metal detector, a direction magnet or the like is used.

The boundary marks shown in FIGS. 1 and 2 are made of concrete and may have reinforcing bars. The upper end surface shows a + shape and other signs. One side of the upper end surface is 90 mm, 120 mm, 1
It is a square with 50 mm and the total length of the pile is 600 mm, 900
mm or the like. (Eg, road corporation type, Tokyo type, etc.)

The boundary marks shown in FIGS. 3 and 4 are made of plastic, and one side of the upper end surface is a square with 45 mm, 70 mm, etc., and the total length of the pile is 450 mm, 600 mm, etc.
(For example, models sold at DIY stores)

[0017]

According to the present invention, when a boundary mark is manufactured, the object to be sensed is installed and provided mainly by insert molding on the upper end portion of the boundary mark, and the boundary mark of the present invention is used as the boundary mark for the land at the designated position of land. The upper surface of the upper end is buried in the inside so that it is exposed to the ground surface side.

[0018]

As described above, the boundary mark of the present invention has a magnet or other object to be sensed installed in advance, and the object to be sensed can be sensed from a remote point by a sensing device. Use the sensing device to detect an object even if it is difficult to find it by visual observation from the ground side, such as when the mark is buried in the earth and sand after being left for a long time. By doing so, there is a great effect that the position can be easily found. Therefore, it is necessary to roughly excavate the surrounding area as in the past, and it is not always possible to find it. It has excellent features that can save time and labor.

[Brief description of the drawings]

FIG. 1 is a perspective view of an embodiment boundary mark (made of concrete) of the present invention.

FIG. 2 is a partial vertical cross-sectional view of FIG.

FIG. 3 is a perspective view of an embodiment boundary mark (made of plastic) of the present invention.

FIG. 4 is a partial vertical cross-sectional view of FIG.

[Sign]

 1 Boundary mark of the present invention 2 Sensitive object

Claims (6)

[Claims] 1. A boundary mark formed by integrally installing a magnet, a radioactive substance, a metal, and other objects to be sensed on a boundary mark made of concrete, plastic, ceramics, stones, etc., which is separated from a separation point by a sensing device. A boundary mark with a sensed object installed, which is capable of knowing the position of the boundary mark at a remote point such as the ground by sensing the sensed object. 2. When the boundary mark is molded by a material such as concrete, plastic, or ceramic, it is embedded by insert molding, or a hole is embedded, an adhesive,
The boundary mark provided with the object to be sensed according to claim 1, wherein the object to be sensed is installed at an upper end portion, a central portion, and other arbitrary portions of the boundary marker by an arbitrary means such as fixing with a screw or the like. 3. The material, such as concrete, plastic, or ceramic, is mixed with powder, particles, etc. of the substance to be sensed and molded, and part or all of the upper end portion of the pile is used as the substance to be sensed. Boundary mark with the object to be sensed installed. 4. A permanent magnet is used as a magnet to be sensed, for example, a ferrite magnet made of a hard magnetic material,
An alnico magnet, a metal magnet, a plastic magnet obtained by synthesizing them, a rubber magnet, or the like is used, and as a sensing device for the magnet, for example, an azimuth magnet, or
A magnetic conversion element (Hall element, Hall I) that produces a Hall effect, a magnetoresistance effect, or the like by applying a magnetic field to a semiconductor.
The magnetic field-electricity converter (magnetic sensor, magnetic transducer, etc.) incorporating C, magnetoresistive element, magnetic diode, magnetic transistor, etc. is used, and the object to be sensed according to claim 1 is installed. Boundary mark. 5. A radioactive substance as a substance to be sensed is, for example, a radioisotope having a long decay half-life that does not adversely affect the human body and is used as a sensing device for the radioactive substance, for example, radiation detection. A boundary mark provided with the object to be sensed according to claim 1, wherein a tube, a proportional counter, a GM counter (Gaiga counter), or the like is used. 6. A metal as a material to be sensed is mainly a ferromagnetic iron-based metal, and as a sensing device for the metal, for example, a metal detector, a compass, or the like is used. A boundary mark provided with the object to be sensed according to claim 1.