JPH11271460A - Buried object probing identification device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a buried object proving identification device that can easily perform probing of a buried object and can identify burial information such as the type and buried data of the buried object before excavation and has low buring costs. SOLUTION: A buried object prospect identification device is provided with a resonance label 3 with an LC resonance circuit for oscillating echo waves in response to an electronic wave with a specific frequency, an antenna 4 for transmitting an electronic wave in an arbitrary frequency band to the resonance label 3 and for receiving echo waves from the resonance label 3, and a portable scanner 5 for giving guide information corresponding to an echo wave of a specific frequency being received by the antenna 4. Then, the portable scanner 5 is connected to the antenna 4 electrically and is composed of a transmission/ reception circuit 6 for transmitting and receiving a signal in a frequency band within a frequency range of 5-60 Hz, a detection circuit 7 with a data memory, and an output circuit 8 with a speaker 9.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for detecting and identifying a buried object buried in the ground or on a wall.

[0002]

2. Description of the Related Art Conventionally, as a method for indicating to a worker of excavation work that a buried pipe such as a communication cable or a gas pipe has been laid underground, a method of laying the buried pipe and the ground surface when laying the buried pipe is known. A method of embedding a color sheet between them is generally performed. At a later date, when the excavator is performing excavation work with heavy equipment etc., it can be confirmed that the buried pipe is laid below by excavating the color sheet,
It is possible to prevent damage to the buried pipe and accidents caused by heavy equipment and the like.

According to this method, an excavator can almost grasp the position of a buried pipe below a color sheet, and if a sheet is color-coded for each buried pipe (for example, a gas pipe is green). , The power line is orange),
The type of the buried pipe laid below can be identified. In addition, notes are written on the sheet surface,
It is also possible to show more detailed information to the operator.

Recently, as a method for exploring and identifying a buried pipe, a marker device provided with a memory chip capable of writing and reading buried information has been provided for each joint of the buried pipe when the buried pipe is laid. There is also a method of attaching it. This is a method of exploring the burial position of a buried pipe while moving along the ground surface.From the ground, the probe transmits a radio signal in the direction of the ground. An apparatus generates an electromotive force from a received signal based on a wireless signal. Then, the embedded information is read from the memory using the electromotive force, a signal is transmitted to the search device, and the embedded information can be obtained by displaying the embedded information on a screen provided in the search device.

According to this method, the position of a buried pipe can be easily searched without performing an excavation operation, and furthermore, writing and reading of various kinds of buried information such as a pipe type and a burying date and time can be performed.

[0006]

However, in the former method among the above-mentioned conventional methods, when a difference occurs between the buried position described in the drawings and the actually buried position, There is a problem that it is difficult to search for the color tape and the buried pipe, and the wasteful excavation work is increased, resulting in an increase in operation cost. In addition, there is a possibility that the buried pipe may be damaged by excavating equipment or the like, and particularly in the case of a high-voltage electric wire, there is a risk of causing a major accident.

In the latter, since only the position of the joint of the buried pipe can be searched, it is unknown which direction the buried pipe extends from the searched joint, and it is difficult to track the position of the buried pipe. There was a point. This problem can be solved to some extent by attaching the marking device not only to the joint part but also to the pipe part. However, if many marking devices are used, the cost will be significantly increased, and the accuracy of the marking device will be maintained. In order to maintain production costs and maintain quality.
There was a problem that the management cost also increased.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned conventional problems, and makes it possible to easily search for a buried object and identify buried information such as a type and a burying date and time. It is an object to provide an object exploration identification device.

[0009]

According to the first aspect of the present invention, there is provided an embedded object exploration and identification apparatus according to the first aspect of the present invention, which is buried in the vicinity of an embedded object and oscillates in response to a radio wave of a specific frequency to generate an echo wave. A resonance means formed in a film shape with a resonance circuit, a transmission means for transmitting a radio wave of an arbitrary frequency band to the resonance means, and a reception means for receiving an echo wave of a specific frequency oscillated by the resonance means, Guidance information output means for outputting guidance information corresponding to the echo wave of a specific frequency received by the receiving means.

According to the second aspect of the present invention, there is provided a resonance means having an LC resonance circuit buried near a buried long object and oscillating an echo wave in response to a radio wave of a specific frequency. Transmitting radio waves of any frequency band to the means,
An antenna for receiving an echo wave of a specific frequency from the resonance means, and a portable scanner for outputting guidance information corresponding to the echo wave of a specific frequency received by the antenna, a buried object search and identification device including: Wherein the resonance means is an inductance element made of a spiral conductive foil;
And a capacitance label made of a dielectric material fixed to at least a part of the inductance element. The resonance label is formed by a pair of spirals formed on both surfaces of the dielectric material in the same winding direction. And a spiral pattern of the spiral conductive foil on one side and a spiral pattern of the spiral conductive foil on the other side are distributed capacitively coupled via the dielectric. In addition, the configuration is such that a plurality of the circuit units are continuous.

According to a third aspect of the present invention, in the apparatus for identifying and locating a buried object according to the second aspect, the resonance means comprises a combination of a plurality of resonance labels having different resonance frequencies according to a plurality of guidance information. .

[0012]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is an explanatory diagram illustrating a configuration of an embedded object search and identification device according to an embodiment of the present invention.

As shown in the drawing, the embedded object exploration and identification device according to the present embodiment includes a resonance label 3 having an LC resonance circuit that oscillates an echo wave in response to a radio wave of a specific frequency; An antenna 4 for transmitting a radio wave in an arbitrary frequency band and receiving an echo wave from the resonance label 3;
A portable scanner 5 for providing guidance information corresponding to an echo wave of a specific frequency received by the antenna 4; The portable scanner 5 is electrically connected to the antenna 4, and transmits and receives a frequency band in a frequency range of 5 to 60 Hz, a detection circuit 7 having a data memory, and an output having a speaker 9. And a circuit 8 (volume adjustable).

The resonance label 3 includes an inductance element made of a spiral conductive foil and a capacitance element made of a dielectric fixed to at least a part of the inductance element, and is formed on both surfaces of the dielectric. It has a circuit unit of a laminated structure composed of a pair of spiral conductor foils, and for example, ends of the spiral pattern of the spiral conductor foil of the pair and the spiral pattern of the spiral conductor foil on the other side are connected to each other with the dielectric. And distributed capacitively. More specifically, as shown in the developed view of FIG. 2, the resonance label 3 is made of a pair of spiral conductor foils forming an inductance element, and an aluminum foil 10 having a thickness of about 20 to 30 μm, and a thickness as a mount. The tape is stuck to a long polyester tape 11 of about 50 μm or more at predetermined intervals, and a perforation 12 is provided at the center of the polyester tape 11. Are located in A polyethylene thin film (not shown) having a thickness of about 10 μm serving as a dielectric is laminated on the surface of the aluminum foil 10 attached to the polyester tape 11. When the polyester tape 11 is folded in two at the perforations 12 and both aluminum foils 10 are superposed face-to-face via a polyethylene thin film, a capacitance element is formed in a distributed capacity, and LC resonance which does not require electrical conduction is performed. A circuit unit is formed, and in terms of product, this LC resonance circuit unit is
It is assumed that the tape is obtained by being arranged at a predetermined interval on a long tape.

At this time, the resonance frequency of the LC resonance circuit unit depends on the total number of turns of the spiral conductive foil as the inductance element, the dielectric constant of the dielectric as the capacitance element sandwiched between the pair of conductive foils, and Determined by the thickness. Therefore, by appropriately changing the number of turns of the spiral conductive foil, it is possible to set the resonance label 3 having a resonance circuit that responds to a desired resonance frequency. For example, it is possible to transmit a plurality of messages by providing a plurality of resonance circuits on one resonance label 3 or laying a combination of a plurality of resonance labels 3 having different resonance frequencies. Therefore, it is possible to oscillate a plurality of buried information corresponding to various buried objects.

Next, the operation of the apparatus for identifying and locating a buried object according to this embodiment will be described. First of all, when burying things that may be needed in the future, such as communication cables,
While the communication cable is being buried, the resonance label 3 is buried along the communication cable 2 as shown in FIG.
Then, when exploring the communication cable 2 buried in the underground 1, the operator moves the antenna 4 connected to the portable scanner 5 along the ground surface 1a. At this time, from the transmitting / receiving circuit 6 of the portable scanner 5 via the antenna 4
A radio wave having a frequency of 5 to 60 MHz is transmitted toward the underground 1. Then, while the antenna 4 is moving, the resonance label 3
, The resonance label 3 resonates with the radio wave oscillated from the antenna 4 and emits an echo wave based on the unique frequency set in the resonance label 3.

This echo wave is received by the transmission / reception circuit 6 in the portable scanner 5 via the antenna 4. The received echo wave is compared with a plurality of data previously set in the memory by the detection circuit 7. As a result of matching,
The data on the buried pipe corresponding to the received unique echo wave is selected, converted into sound from the speaker 9 by the output circuit 8 and output, and the operator can obtain the data on the communication cable 2.

As described above, in the underground object exploration and identification device according to the present embodiment, an arbitrary radio wave is transmitted from the ground surface 1a to the resonance label 3, and the resonance label 3 resonates with this radio wave and the specific The position of the resonance label 3, that is, the position above the communication cable 2 is searched by returning the echo wave of the frequency to the transmission / reception circuit 7, so that the communication cable 2 can be easily searched and identified without performing an operation such as excavation. .

Further, the resonance label 3 includes an inductance element formed by two spiral patterns of the aluminum foil 10 and a capacitance element formed by a polyethylene thin film which is a dielectric sandwiched between electrode plates of both spiral patterns. And a plurality of LC resonance circuit units consisting of a plurality of LC resonance circuit units, can be easily and accurately embedded along a long object such as the communication cable 2 even when embedded above the communication cable 2. Is cheaper. In addition, since the resonance label 3 does not deteriorate in performance due to impact, vibration, and flooding, the reliability of the search and identification is high even when the resonance label 3 is buried for a long time.

Although the preferred embodiments have been described with reference to the drawings, the specific structure of the present invention is not limited to the above-described preferred embodiments, and design changes and the like may be made without departing from the scope of the present invention. The present invention is also included in the present invention. For example, in the present embodiment, an example has been described in which the communication cable 2 buried in the underground 1 is searched and identified. However, the present invention is not limited to this. For example, a high-pressure cable, a gas pipe, a water pipe, a common trench, and It can also be used for exploring and identifying pipe branching directions, pipes buried in walls, and the like. It can also be used for exploration and identification of non-tubular buried objects, such as backfilling underground tanks and excavations.

[0021]

As described above, the apparatus for detecting and burying buried objects according to the present invention is formed into a film having an LC resonance circuit which oscillates an echo wave in response to a radio wave of a specific frequency. The obtained resonance means is buried in the vicinity of the buried object, and when exploring and identifying the buried object, a radio wave in an arbitrary frequency band is transmitted from the transmission means toward the resonance means and resonated with this radio wave. The receiving means receives an echo wave of a specific frequency returned by the resonance circuit, and guide information corresponding to the echo wave of the specific frequency received by the receiving means is output by the guide information output means. Exploration and identification of buried objects can be easily performed before. Also, because it was formed into a film,
Anyone can bury a buried object in the vicinity of the buried object by a simple procedure, and the effect of not hindering the burying work of the buried object can be obtained.

According to a second aspect of the present invention, there is provided a circuit unit having a laminated structure in which an LC resonance circuit buried with a buried object comprises a pair of spiral conductor foils formed on both surfaces of a dielectric. The pair of spiral conductive foils are formed with a pair of spiral patterns that overlap and show the same spiral direction when facing each other via the dielectric. Since the spiral pattern and the spiral pattern of the spiral conductive foil on the other side are coupled in a distributed capacity manner via the dielectric, the spiral conductive foil has a configuration in which a plurality of continuous spiral conductive foils are continuous. Is a long object, even if it is continuously buried along the buried object,
Burial costs can be kept low.

According to the third aspect of the present invention, since the resonance means is composed of a combination of a plurality of resonance labels, a large number of different embedded information can be stored in the resonance means while maintaining low cost. This makes it possible to provide a large amount of embedded information at the time of exploration and identification of an embedded object.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram showing a configuration of an embedded object exploration and identification device according to an embodiment of the present invention.

FIG. 2 is a development view illustrating a resonance label used in the embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Underground 1a Ground surface 2 Communication cable 3 Resonance label 4 Antenna 5 Portable scanner 6 Transmission / reception circuit 7 Detection circuit 8 Output circuit 9 Speaker 10 Aluminum foil 11 Polyester tape 12 Perforation

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[Procedure amendment]

[Submission date] March 9, 1999

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Full text

[Correction method] Change

[Correction contents]

[Document Name] Statement

[Title of Invention] Buried object exploration identification device

[Claims]

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for detecting and identifying a buried object buried in the ground or on a wall.

[0002]

2. Description of the Related Art Conventionally, as a method for indicating to a worker of excavation work that a buried pipe such as a communication cable or a gas pipe is laid underground, a method of laying the buried pipe and the ground surface at the time of laying the buried pipe is known. A method of embedding a color sheet between them is generally performed. At a later date, when the excavator is performing excavation work with heavy equipment etc., it can be confirmed that the buried pipe is laid below by excavating the color sheet,
It is possible to prevent damage to the buried pipe and accidents caused by heavy equipment and the like.

According to this method, an excavator can almost grasp the position of a buried pipe below a color sheet, and if a sheet is color-coded for each buried pipe (for example, a gas pipe is green). , The power line is orange),
The type of the buried pipe laid below can be identified. In addition, notes are written on the sheet surface,
It is also possible to show more detailed information to the operator.

Recently, as a method for exploring and identifying a buried pipe, a marker device provided with a memory chip capable of writing and reading buried information has been provided for each joint of the buried pipe when the buried pipe is laid. There is also a method of attaching it. This is a method of exploring the burial position of a buried pipe while moving along the ground surface.From the ground, the probe transmits a radio signal in the direction of the ground. An apparatus generates an electromotive force from a received signal based on a wireless signal. Then, the embedded information is read from the memory using the electromotive force, a signal is transmitted to the search device, and the embedded information can be obtained by displaying the embedded information on a screen provided in the search device.

According to this method, the position of a buried pipe can be easily searched without performing an excavation operation, and furthermore, writing and reading of various kinds of buried information such as a pipe type and a burying date and time can be performed.

[0006]

However, in the former method among the above-mentioned conventional methods, when a difference occurs between the buried position described in the drawings and the actually buried position, There is a problem that it is difficult to search for the color tape and the buried pipe, and the wasteful excavation work is increased, resulting in an increase in operation cost. In addition, there is a possibility that the buried pipe may be damaged by excavating equipment or the like, and particularly in the case of a high-voltage electric wire, there is a risk of causing a major accident.

In the latter, since only the position of the joint of the buried pipe can be searched, it is unclear in which direction the buried pipe extends from the searched joint, and it is difficult to track the position of the buried pipe. There was a point. This problem can be solved to some extent by attaching the marking device not only to the joint part but also to the pipe part. However, if many marking devices are used, the cost will be significantly increased, and the accuracy of the marking device will be maintained. In order to maintain production costs and maintain quality.
There was a problem that the management cost also increased.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned conventional problems, and makes it possible to easily search for a buried object and identify buried information such as a type and a burying date and time. It is an object to provide an object exploration identification device.

[0009]

A solution for the] Therefore, in a buried object exploration identification device of the present invention according to claim 1, wherein is comprised of the conductive foil element
Is placed on a flexible backing and the element is a thin film dielectric.
The mounts face each other so that they face each other through the body
This makes it possible to resonate in response to radio waves
Equipped with a film-shaped LC resonance circuit that oscillates
Means for transmitting radio waves of an arbitrary frequency band to the resonance means, and reception means for receiving an echo wave of a specific frequency oscillated by the resonance means. And guide information output means for outputting guide information corresponding to the echo wave of a specific frequency received by the receiving means.

According to a second aspect of the present invention, there is provided an apparatus for detecting and identifying a buried object .
A resonance means having an LC resonance circuit buried along the vicinity of the buried long object and oscillating an echo wave in response to a radio wave of a specific frequency, and a radio wave of an arbitrary frequency band is applied to the resonance means. A buried object exploration device comprising: an antenna for transmitting and receiving a specific frequency echo wave from the resonance means; and a portable scanner for outputting guidance information corresponding to the specific frequency echo wave received by the antenna. a classification apparatus, said resonance means, an inductance element comprising a spiral conductor foil configured into a film in the capacitance element consisting of thin-film dielectrics affixed to at least a portion of the inductance element This is a resonance label, and the resonance label is a circuit unit having a laminated structure including a pair of spiral conductive foils formed on both surfaces of the dielectric and having the same winding direction. And is, that circuit unit it
Each of the spiral conductor foils on one side is placed on the backing paper.
The turn and the spiral pattern of the spiral conductive foil on the other side are
By coupling through a dielectric and distributed capacitively
To form a long tape
It was configured to be continuously arranged in one direction .

According to a third aspect of the present invention, in the apparatus for identifying and locating a buried object according to the second aspect, the resonance means comprises a combination of a plurality of resonance labels having different resonance frequencies according to a plurality of guidance information. .

[0012]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is an explanatory diagram illustrating a configuration of an embedded object search and identification device according to an embodiment of the present invention.

As shown in the drawing, the embedded object exploration and identification device according to the present embodiment includes a resonance label 3 having an LC resonance circuit that oscillates an echo wave in response to a radio wave of a specific frequency; An antenna 4 for transmitting a radio wave in an arbitrary frequency band and receiving an echo wave from the resonance label 3;
A portable scanner 5 for providing guidance information corresponding to an echo wave of a specific frequency received by the antenna 4; The portable scanner 5 is electrically connected to the antenna 4, and transmits and receives a frequency band in a frequency range of 5 to 60 Hz, a detection circuit 7 having a data memory, and an output having a speaker 9. And a circuit 8 (volume adjustable).

The resonance label 3 includes an inductance element made of a spiral conductive foil and a capacitance element made of a dielectric fixed to at least a part of the inductance element, and is formed on both surfaces of the dielectric. It has a circuit unit of a laminated structure composed of a pair of spiral conductor foils, and for example, ends of the spiral pattern of the spiral conductor foil of the pair and the spiral pattern of the spiral conductor foil on the other side are connected to each other with the dielectric. And distributed capacitively. More specifically, as shown in the developed view of FIG. 2, the resonance label 3 is made of a pair of spiral conductor foils forming an inductance element, and an aluminum foil 10 having a thickness of about 20 to 30 μm, and a thickness as a mount. The tape is stuck to a long polyester tape 11 of about 50 μm or more at predetermined intervals, and a perforation 12 is provided at the center of the polyester tape 11. Are located in A polyethylene thin film (not shown) having a thickness of about 10 μm serving as a dielectric is laminated on the surface of the aluminum foil 10 attached to the polyester tape 11. When the polyester tape 11 is folded in two at the perforations 12 and both aluminum foils 10 are superposed face-to-face via a polyethylene thin film, a capacitance element is formed in a distributed capacity, and LC resonance which does not require electrical conduction is performed. A circuit unit is formed, and in terms of product, this LC resonance circuit unit is
It is assumed that the tape is obtained by being arranged at a predetermined interval on a long tape.

At this time, the resonance frequency of the LC resonance circuit unit depends on the total number of turns of the spiral conductive foil as the inductance element, the dielectric constant of the dielectric as the capacitance element sandwiched between the pair of conductive foils, and Determined by the thickness. Therefore, by appropriately changing the number of turns of the spiral conductive foil, it is possible to set the resonance label 3 having a resonance circuit that responds to a desired resonance frequency. For example, it is possible to transmit a plurality of messages by providing a plurality of resonance circuits on one resonance label 3 or laying a combination of a plurality of resonance labels 3 having different resonance frequencies. Therefore, it is possible to oscillate a plurality of buried information corresponding to various buried objects.

Next, the operation of the apparatus for identifying and locating a buried object according to this embodiment will be described. First of all, when burying things that may be needed in the future, such as communication cables,
While the communication cable is being buried, the resonance label 3 is buried along the communication cable 2 as shown in FIG.
Then, when exploring the communication cable 2 buried in the underground 1, the operator moves the antenna 4 connected to the portable scanner 5 along the ground surface 1a. At this time, from the transmitting / receiving circuit 6 of the portable scanner 5 via the antenna 4
A radio wave having a frequency of 5 to 60 MHz is transmitted toward the underground 1. Then, while the antenna 4 is moving, the resonance label 3
, The resonance label 3 resonates with the radio wave oscillated from the antenna 4 and emits an echo wave based on the unique frequency set in the resonance label 3.

This echo wave is received by the transmission / reception circuit 6 in the portable scanner 5 via the antenna 4. The received echo wave is compared with a plurality of data previously set in the memory by the detection circuit 7. As a result of matching,
The data on the buried pipe corresponding to the received unique echo wave is selected, converted into sound from the speaker 9 by the output circuit 8 and output, and the operator can obtain the data on the communication cable 2.

As described above, in the underground object exploration and identification device according to the present embodiment, an arbitrary radio wave is transmitted from the ground surface 1a to the resonance label 3, and the resonance label 3 resonates with this radio wave and the specific The position of the resonance label 3, that is, the position above the communication cable 2 is searched by returning the echo wave of the frequency to the transmission / reception circuit 7, so that the communication cable 2 can be easily searched and identified without performing an operation such as excavation. .

Further, the resonance label 3 includes an inductance element formed by two spiral patterns of the aluminum foil 10 and a capacitance element formed by a polyethylene thin film as a dielectric sandwiched between electrode plates of both spiral patterns. And a plurality of LC resonance circuit units consisting of a plurality of LC resonance circuit units, can be easily and accurately embedded along a long object such as the communication cable 2 even when embedded above the communication cable 2. Is cheaper. In addition, since the resonance label 3 does not deteriorate in performance due to impact, vibration, and flooding, the reliability of the search and identification is high even when the resonance label 3 is buried for a long time.

Although the preferred embodiments have been described with reference to the drawings, the specific structure of the present invention is not limited to the above-described preferred embodiments, and design changes and the like may be made without departing from the scope of the present invention. The present invention is also included in the present invention. For example, in the present embodiment, an example has been described in which the communication cable 2 buried in the underground 1 is searched and identified. However, the present invention is not limited to this. For example, a high-pressure cable, a gas pipe, a water pipe, a common trench, and It can also be used for exploring and identifying pipe branching directions, pipes buried in walls, and the like. It can also be used for exploration and identification of non-tubular buried objects, such as backfilling underground tanks and excavations.

[0021]

As described above, in the apparatus for detecting and burying buried objects according to the present invention, a film-shaped L which oscillates an echo wave in response to a radio wave of a specific frequency.
Resonance means provided with a C resonance circuit is buried in the vicinity of a buried object, and when searching for and identifying the buried object, a radio wave in an arbitrary frequency band is transmitted from the transmission means toward the resonance means. A configuration in which a receiving unit receives an echo wave of a specific frequency returned by the resonance circuit in response to a radio wave and guide information corresponding to the echo wave of a specific frequency received by the receiving unit is output by a guide information output unit. Therefore, the exploration and identification of the buried object can be easily performed before excavation. Also, because it was formed into a film,
Anyone can bury a buried object in the vicinity of the buried object by a simple procedure, and the effect of not hindering the burying work of the buried object can be obtained.

According to a second aspect of the present invention, there is provided a circuit unit having a laminated structure in which an LC resonance circuit buried with a buried object comprises a pair of spiral conductor foils formed on both surfaces of a dielectric. The pair of spiral conductive foils are formed with a pair of spiral patterns that overlap and show the same spiral direction when facing each other via the dielectric. Since the spiral pattern and the spiral pattern of the spiral conductive foil on the other side are coupled in a distributed capacity manner via the dielectric, the spiral conductive foil has a configuration in which a plurality of continuous spiral conductive foils are continuous. Is a long object, even if it is continuously buried along the buried object,
Burial costs can be kept low.

According to the third aspect of the present invention, since the resonance means is composed of a combination of a plurality of resonance labels, a large number of different embedded information can be stored in the resonance means while maintaining low cost. This makes it possible to provide a large amount of embedded information at the time of exploration and identification of an embedded object.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram showing a configuration of an embedded object exploration and identification device according to an embodiment of the present invention.

FIG. 2 is a development view illustrating a resonance label used in the embodiment.

[Description of Signs] 1 Underground 1a Ground Surface 2 Communication Cable 3 Resonance Label 4 Antenna 5 Portable Scanner 6 Transmission / Reception Circuit 7 Detection Circuit 8 Output Circuit 9 Speaker 10 Aluminum Foil 11 Polyester Tape 12 Perforation

Claims (3)

[Claims] 1. A resonating means buried in the vicinity of a buried object, comprising a LC resonance circuit oscillating an echo wave in response to a radio wave of a specific frequency and oscillating an echo wave; Transmitting means for transmitting a radio wave of a band, receiving means for receiving an echo wave of a specific frequency oscillated by the resonance means, and outputting guidance information corresponding to the echo wave of a specific frequency received by the receiving means. And a guide information output unit. 2. An L buried in the vicinity of a buried long object, oscillating an echo wave in response to a radio wave of a specific frequency.
A resonance means having a C resonance circuit; an antenna for transmitting a radio wave of an arbitrary frequency band to the resonance means and receiving an echo wave of a specific frequency from the resonance means; An embedded object exploration / identification device comprising: a portable scanner that outputs guide information corresponding to an echo wave; wherein the resonance unit includes an inductance element formed of a spiral conductive foil, and at least a part of the inductance element. And a laminated structure comprising a pair of spiral conductive foils formed on both surfaces of the dielectric and having the same winding direction, formed on both surfaces of the dielectric. The spiral pattern of the spiral conductive foil on one side and the spiral pattern of the spiral conductive foil on the other side have a distributed capacitance via the dielectric. Coupled to, and buried object exploration identification device the circuit unit is characterized by being more consecutive. 3. An apparatus according to claim 2, wherein said resonance means comprises a combination of a plurality of resonance labels having different resonance frequencies according to a plurality of guidance information.