JP7694209B2 - Buried object detection device, identification method and identification program thereof - Google Patents

Description

The present invention relates to a buried object detection device that detects buried objects such as metals and wood contained in walls, concrete, etc., and to an identification method and identification program for the same.

In recent years, for example, devices have been used to detect buried objects such as reinforcing bars contained within concrete. These devices detect buried objects based on changes in the reflected waves of electromagnetic waves radiated toward the surface of the concrete while being moved along the surface of the concrete.
For example, Patent Document 1 discloses a buried object exploration device that includes an input unit that inputs data obtained along a lateral line of a signal value of an electromagnetic wave reflected by a buried object, a generation unit that generates a virtual waveform template having a spread of the reflected waveform according to the propagation depth of the electromagnetic wave, and a display unit that displays both the signal value of the data and the virtual waveform template having a shape according to the propagation depth.

JP 2017-040547 A

However, the above-mentioned conventional buried object detection device has the following problems.
In other words, with the buried object detection device disclosed in the above publication, for example, when the types of buried objects to be detected differ or the range of detection sensitivity differs, a dedicated buried object detection device was required for that application.

The objective of the present invention is to provide a buried object detection device and an identification method and identification program that can identify the type of attachment attached to a main body, even when the main body is used in common, for example, when the types of buried objects to be detected or the detection sensitivity are different.

The buried object exploration device according to the first invention is a buried object exploration device that detects buried objects contained within a target object, and includes a main body, an attachment, an exploration image conversion processing unit, and an identification unit. The attachment is detachably attached to the main body and has a detection unit that detects buried objects. The exploration image conversion processing unit converts the detection results of the detection unit into an exploration image. The identification unit identifies the type of the attachment attached to the main body.

Here, in a buried object detection device having a main body and an attachment part that is detachable from the main body, the type of attachment part that includes a detection part that detects buried objects is identified.
Here, the buried object detection device of the present invention may employ various types as a detection section, such as a capacitance type using a capacitance sensor that detects changes in capacitance to detect buried objects, an electromagnetic induction type, etc.

The type of attachment part may include, for example, at least one of the following: the method of detecting buried objects (capacitive, electromagnetic induction, etc.), the type of buried object to be detected (wood, metal, heat, etc.), and the detection sensitivity.
This makes it possible to automatically identify what application the attached attachment part is suitable for, in a buried object detection device that has a main body part and an attachment part that can be attached and detached to the main body part, by including a detection part therein.
As a result, for example, when the types of buried objects to be detected or the detection sensitivity are different, even if the main body part is used in common, it is possible to identify the type of attachment part attached to the main body part.

The buried object detection device of the second invention is the buried object detection device of the first invention, wherein the types of attachment parts include at least one of differences in the method of detecting buried objects, the types of buried objects to be detected, and differences in detection sensitivity.
This makes it possible to automatically identify the type of attachment part when different types of attachment parts are attached to the main body, for example, when the attachment parts have different detection methods such as capacitance or electromagnetic induction, different buried objects to be detected such as wood, metal, heat, etc., or different detection sensitivity setting ranges.

The buried object detection device of the third invention is the buried object detection device of the second invention, wherein the attachment unit includes a first detection unit that detects buried objects using a capacitance method, and a second detection unit that detects buried objects using an electromagnetic induction method.
This makes it possible to automatically identify whether the attachment part attached to the main body part includes a capacitance type detection part or an electromagnetic induction type detection part.

The buried object detection device of the fourth invention is the buried object detection device of the second or third invention, wherein the attachment unit includes a third detection unit that detects wood as a buried object, and a fourth detection unit that detects metal.
This makes it possible to automatically identify whether the attachment part attached to the main body part includes a detection part for wood detection or a detection part for metal detection.

A buried object detection device according to a fifth invention is a buried object detection device according to any one of the first to fourth inventions, wherein the identification unit detects a combination of identification terminals that differ for each type of attachment unit and identifies the type of attachment unit.
This makes it possible to identify the type of attachment part attached to the main body part, for example, by the difference in the combination of identification terminals that output High/Low signals.

The buried object detection device of the sixth invention is a buried object detection device of any one of the first to fifth inventions, further comprising a display unit that displays the detection image converted in the detection image conversion processing unit.
This allows the user to carry out work while looking at the display unit provided on the buried object exploration device by displaying the exploration image converted from the detection results in the detection unit.

The buried object detection device of the seventh invention is a buried object detection device of any one of the first to sixth inventions, further comprising an attachment mechanism for removably attaching the attachment part to the main body part.
This allows a plurality of types of attachment parts to be detachably attached to the main body part by the attachment/detachment mechanism.

The buried object detection device of the eighth invention is the buried object detection device of the seventh invention, wherein the attachment/detachment mechanism includes a floating substrate including a guide pin formed along the mounting direction of the attachment part to the main body part, and a guide hole provided in the main body part into which the guide pin is inserted.
This allows the attachment part to be attached to the main body part at a predetermined position by inserting the floating substrate on the attachment part side so that the guide pin is inserted into the guide hole provided on the main body part side.

The buried object detection device of the 9th invention is a buried object detection device of the 7th or 8th invention, wherein the attachment/detachment mechanism includes a guide mechanism that guides the attachment part to a connection position where the detection part and the main body part of the attachment part are connected to each other.
As a result, the attachment part is guided to a position where the detection part on the attachment part side and the main body part are connected to each other, so that the attachment part can be attached to the main body part at a predetermined position.

The buried object detection device of the tenth invention is the buried object detection device of the ninth invention, wherein the guide mechanism includes a guide rib provided on the attachment portion side or the main body side, and a guide groove provided on the main body side or the attachment portion side with which the guide rib engages.
As a result, the attachment part is guided to a position where the detection part on the attachment part and the main body part are connected to each other by engaging with the guide rib and the guide groove, so that the attachment part can be attached to a predetermined position on the main body part.

An eleventh aspect of the present invention is the buried object exploration device of the tenth aspect of the present invention, wherein the guide rib and the guide groove are provided substantially parallel to the mounting direction of the attachment part to the main body part.
With this, by moving the guide rib along the guide groove, it is possible to guide the attachment part along the direction in which it is attached to the main body part.

The buried object detection device of the 12th invention is a buried object detection device of any one of the seventh to eleventh inventions, wherein the attachment/detachment mechanism includes a locking mechanism that keeps the attachment part from being disconnected from the main body part at a connection position where the detection part and the main body part of the attachment part are connected to each other.
This makes it possible for the locking mechanism to hold the attachment unit so as not to separate from the main body unit at the connection position where the detection unit of the attachment unit and the main body unit are connected to each other.

The buried object detection device of the 13th invention is the buried object detection device of the 12th invention, wherein the locking mechanism includes, at the connection position, a locking claw provided on the main body portion or the attachment portion, and a locking portion provided on the attachment portion or the main body portion to which the locking claw engages.
In this way, by forming a locking mechanism by combining the locking claw and the locked portion, the attachment portion and the main body portion can be held in a connected state with a simple configuration.

The buried object detection device of the 14th invention is the buried object detection device of the 13th invention, wherein the locking mechanism further includes a biasing member that biases the locking claw in a direction intersecting the attachment direction of the attachment part to the main body, and an operating part that operates the biasing member in the direction opposite to the biasing direction when removing the attachment part.
As a result, the locking claw that locks onto the non-locking portion is biased in a direction intersecting the mounting direction by a biasing member such as a spring, so that by operating the operating portion in the opposite direction to the biasing direction, the locked state between the locking claw and the locked portion can be released, and the attachment portion can be easily removed from the main body portion.

The buried object detection device of the 15th invention is a buried object detection device of any one of the seventh to fourteenth inventions, wherein the attachment/detachment mechanism includes an adsorption portion that adsorbs the attachment portion to the main body portion at a connection position where the detection portion and the main body portion of the attachment portion are connected to each other.
As a result, for example, by using an attraction portion such as a magnet to connect the main body portion and the attachment portion, the attachment portion can be made detachable from the main body portion with a simple configuration.

A buried object detection device according to a sixteenth aspect of the present invention is a buried object detection device according to the eighth aspect of the present invention, wherein the attachment/detachment mechanism is attached to the surface of the floating substrate that connects to the main body, and further includes a shoulder screw that regulates the range of movement of the floating substrate.
This allows the floating substrate to move within the range of freedom set by the shoulder screws, facilitating connection of the attachment portion to the main body portion.

The method for identifying a buried object detection device according to the seventeenth invention is a method for identifying the type of an attachment part attached to a main body part in a buried object detection device that includes an attachment part having a detection part that detects buried objects contained within a target object, and a main body part to which the attachment part is detachably attached, and includes an attachment detection step and an identification step. In the attachment detection step, it is detected that the attachment part has been attached to the main body part. In the identification step, when it is detected in the attachment detection step that the attachment part has been attached to the main body part, the type of the attachment part is identified.

Here, in a buried object detection device having a main body and an attachment part that is detachable from the main body, the type of attachment part that includes a detection part that detects buried objects is identified.
Here, the buried object detection device may employ various types as a detection section, such as a capacitance type using a capacitance sensor that detects changes in capacitance to detect buried objects, or an electromagnetic induction type.

The type of attachment part may include, for example, at least one of the following: the method of detecting buried objects (capacitive, electromagnetic induction, etc.), the type of buried object to be detected (wood, metal, heat, etc.), and the detection sensitivity.
This makes it possible to automatically identify what application the attached attachment part is suitable for, in a buried object detection device that has a main body part and an attachment part that can be attached and detached to the main body part, by including a detection part therein.
As a result, for example, when the types of buried objects to be detected or the detection sensitivity are different, even if the main body part is used in common, it is possible to identify the type of attachment part attached to the main body part.

The identification program for a buried object exploration device according to the eighteenth invention is a program for identifying the type of attachment part attached to a main body part in a buried object exploration device that includes an attachment part having a detection part that detects buried objects contained within a target object, and a main body part to which the attachment part is detachably attached, and causes a computer to execute an identification method for a buried object exploration device that includes an attachment detection step and an identification step. In the attachment detection step, it is detected that the attachment part has been attached to the main body part. In the identification step, when it is detected in the attachment detection step that the attachment part has been attached to the main body part, the type of the attachment part is identified.

Here, in a buried object detection device having a main body and an attachment part that is detachable from the main body, the type of attachment part that includes a detection part that detects buried objects is identified.
Here, the buried object detection device may employ various types as a detection section, such as a capacitance type using a capacitance sensor that detects changes in capacitance to detect buried objects, or an electromagnetic induction type.

The type of attachment part may include, for example, at least one of the following: the method of detecting buried objects (capacitive, electromagnetic induction, etc.), the type of buried object to be detected (wood, metal, heat, etc.), and the detection sensitivity.
This makes it possible to automatically identify what application the attached attachment part is suitable for, in a buried object detection device that has a main body part and an attachment part that can be attached and detached to the main body part, by including a detection part therein.

As a result, for example, when the types of buried objects to be detected or the detection sensitivity are different, it is possible to identify the type of attachment part attached to the main body part even when the main body part is used in common.

The buried object detection device according to the present invention can identify the type of attachment part attached to the main body part, even when the main body part is used in common, for example, when the types of buried objects to be detected or the detection sensitivity are different.

1 is an explanatory diagram showing a state in which a buried object exploration device according to an embodiment of the present invention is used to scan along a wall surface to detect buried objects within the wall surface. 1 is an external view showing the configuration of a buried object exploration device equipped with an attachment unit including an electromagnetic induction sensor; 1 is an external view showing the configuration of a buried object exploration device equipped with an attachment unit including a capacitance sensor; FIG. 2 is an external view showing the configuration of a buried object exploration device equipped with an attachment unit including an IR sensor. 5 is a perspective view showing that the various attachment parts shown in FIGS. 2 to 4 are attached to the main body in an interchangeable manner; FIG. 3 is a diagram showing a state in which an exploration image is displayed on the display unit of a buried object exploration device to which an attachment unit including the electromagnetic induction sensor of FIG. 2 is attached. FIG. 6 is a control block diagram of the buried object exploration device of FIG. 5 . 3 is a perspective view showing that an attachment unit including the electromagnetic induction sensor of FIG. 2 is detachable from a main body unit. 6 is an exploded perspective view showing the configuration of a common main body part constituting the buried object exploration device of FIG. 5 . FIG. 3 is an exploded perspective view showing the configuration of an attachment unit including the electromagnetic induction sensor of FIG. 2 . 3A is a top view showing a buried object exploration device in which an attachment unit including the electromagnetic induction sensor of Fig. 2 is attached to a main body unit, (b) is a cross-sectional view taken along line A-A in (a), and (c) is a side view showing only the main components of (b). 3A is a side view showing a buried object exploration device in which an attachment unit including the electromagnetic induction sensor of Fig. 2 is attached to a main body unit, and Fig. 3B is a cross-sectional view taken along line BB of Fig. 3A. 3 is an explanatory diagram showing a process of identifying the type of an attachment part in a buried object exploration device in which an attachment part including the electromagnetic induction sensor of FIG. 2 is attached to a main body part. 4 is an explanatory diagram showing a process of identifying the type of an attachment part in a buried object exploration device in which an attachment part including the capacitance sensor of FIG. 3 is attached to a main body part. 4 is a flowchart showing the process flow of an identification method for a buried object exploration device of the present invention. 3 is a flowchart showing a process flow from generation to storage of an exploration image in the buried object exploration device of FIG. 2 . 17 is a flowchart showing a detailed flow of a coordinate acquisition process (current position detection) included in the flowchart of FIG. 16 . 17 is a flowchart showing a detailed flow of a buried object presence/absence determination process included in the flowchart of FIG. 16 . 17 is a flowchart showing a detailed flow of a buried object dimension determination process included in the flowchart of FIG. 16 . 17 is a flowchart showing a detailed flow of the exploration image conversion process included in the flowchart of FIG. 16 . 17 is a flowchart showing a detailed flow of an exploration image storage process included in the flowchart of FIG. 16 . 8 is a diagram showing a buried object table stored in a memory unit of the buried object exploration device of FIG. 7 . 8 is a diagram showing an acquired data storage table stored in a storage unit of the buried object exploration device of FIG. 7 . 8 is a diagram showing a display buffer area stored in the memory unit of the buried object exploration device of FIG. 7 . 8 is a diagram showing an exploration image storage table stored in the storage unit of the buried object exploration device of FIG. 7 .

The buried object exploration device 10 and its identification method according to one embodiment of the present invention will be described below with reference to FIGS.
(1) Configuration of buried object detection device 10 As shown in FIG. 1, the buried object detection device 10 of this embodiment moves along a wall surface (target object) 90 and detects changes in sensor values using a capacitance sensor 13 (see FIG. 7) or an electromagnetic induction sensor 14 (see FIG. 7) described below, thereby detecting buried objects 91 such as wood (pipe posts 91a, studs 91b) and metals contained within the wall surface 90.

As shown in Figures 2 to 4, in the buried object detection device 10 of this embodiment, a plurality of attachment parts 20a, 20b, and 20c prepared according to, for example, the type of buried object 91 to be detected, the detection method, the detection sensitivity, etc., are detachably attached to a common main body part 11.
The attachment unit 20a shown in Fig. 2 includes an electromagnetic induction type detection unit (second detection unit) and detects, for example, buried objects 91 such as reinforcing bars in concrete. The attachment unit 20a also has an electromagnetic induction type sensor 14 including a sensor value acquisition unit 14a and an identification terminal (coil) 14b (see Fig. 7).

Attachment unit 20b shown in FIG. 3 includes a capacitance-type detection unit (first detection unit) and detects changes in capacitance while moving buried object exploration device 10 along wall surface 90 to detect buried objects 91, such as wood behind a plasterboard. Attachment unit 20b also has a capacitance sensor 13 including a sensor value acquisition unit 13a and an identification terminal (capacitance) 13b (see FIG. 7).

The attachment part 20c shown in Figure 4 includes an IR sensor that detects heat, and when the buried object 91 is a pipe or the like that becomes hot, the buried object 91 is detected by detecting heat while moving the buried object detection device 10 along the wall surface 90.
This allows, for example, by selecting an appropriate attachment part depending on the type of buried object 91 to be detected, the detection method, the detection sensitivity, etc., and attaching it to the main body part 11, it is possible to prepare and use only the attachment parts having the necessary functions, thereby obtaining a buried object detection device 10 that can be used in a variety of situations.

The configuration of the attachment mechanism 50 that detachably mounts the attachment parts 20a, 20b to the main body part 11 will be described in detail later. Also, an identification method for identifying the types of the attachment parts 20a, 20b attached to the main body part 11 will be described in detail later.
As shown in Figures 2 to 4, the buried object detection device 10 comprises a main body unit 11 (a display unit 12, an optical sensor 16 (see Figure 7) and an operation input unit 15) and a plurality of attachment units 20a, 20b, 20c that are detachable from the main body unit 11.

The wall surface 90 includes, for example, a plaster board or a wooden plywood having an interior material such as wallpaper attached to its surface. The embedded object 91 includes, for example, a wooden or metal frame such as a pillar, a beam, or a brace.
2, the main body 11 is a resin member having a substantially rectangular parallelepiped shape, and has a display unit 12 and an operation input unit 15 on its surface (front side) facing the user when in use, and an optical sensor 16 on its surface (back side) facing the wall surface 90 opposite the user. In addition, attachment units 20a to 20c including multiple types of detection units (sensors) with different detection methods, for example, are detachably attached to the upper end of the main body 11 as shown in FIG.

The display unit 12 is, for example, a liquid crystal display device, and is disposed on the surface of the main body unit 11 as shown in Fig. 2. The display unit 12 displays, for example, settings of the buried object exploration device 10, an exploration image showing the detection result of the buried object 91, and the like (see Fig. 6), and the display contents are switched according to the operation contents input to the operation input unit 15.
The capacitance sensor 13 is arranged on the back side of the attachment part 20b, and detects changes in capacitance when the buried object detection device 10 is moved along the wall surface 90 in order to detect buried objects 91 present within the wall surface 90.

The electromagnetic induction sensor 14 is positioned on the back side of the attachment part 20a, and detects changes in impedance of a coil (see Figure 10) that are detected when the buried object detection device 10 is moved along the wall surface 90 in order to detect buried objects 91 present within the wall surface 90.
The optical sensor 16 is disposed on the rear side of the main body 11 and receives reflected light, for example, infrared light, that is irradiated onto the wall surface 90 to obtain position information of the buried object exploration device 10 .

2 to 4, the operation input unit 15 is disposed on the surface of the main body 11. The operation input unit 15 includes a power button 15a, a grid display button 15b, a scale switching button 15c, and a selection/scroll button 15d.
The power button 15a is located on the upper right side of the operation input unit 15, and, for example, by pressing and holding it, the power of the buried object exploration device 10 is turned on or off.

The grid display button 15b is located on the upper left side of the operation input unit 15, and is pressed when a grid layer, in which multiple grid lines are arranged in a lattice pattern, is displayed on the display screen 12a of the display unit 12, superimposed on the exploration image. When the grid display button 15b is pressed again in a state in which the grid layer is displayed on the display screen 12a superimposed on the exploration image, a measurement grid (grid lines) is displayed on the display screen 12a.

The scale switching button 15c is disposed in the center of the upper section of the operation input unit 15, and is pressed, for example, when enlarging the exploration image and the grid layer that are displayed in an overlapping manner.
The select/scroll button 15d is located on the lower side of the operation input unit 15, and is used to input operations in four directions, up, down, left, and right. The select/scroll button 15d is pressed when executing a command or the like selected by scrolling.

As shown in FIG. 7, the buried object exploration device 10 includes within the main body 11 a sensor value acquisition unit 30, a position information acquisition unit 31, a memory unit 32, a buried object presence/absence determination unit 33, a dimension calculation processing unit 34, an exploration image conversion processing unit 35, a buried object estimation unit 36, an input acceptance unit 37, an exploration image calling unit 38, a data transfer unit 39, a display control unit 40, and an attachment identification unit (identification unit) 41.

The sensor value acquisition unit 30, position information acquisition unit 31, memory unit 32, buried object presence/absence determination unit 33, dimension calculation processing unit 34, exploration image conversion processing unit 35, buried object estimation unit 36, input reception unit 37, exploration image calling unit 38, data transfer unit 39, display control unit 40 and attachment identification unit 41 generated within the buried object exploration device 10 are generated as control blocks by the CPU reading various control programs stored in the memory.

The sensor value acquisition unit 30 acquires, for example, a sensor value output from an electromagnetic induction sensor 14 arranged on the back side of the attachment unit 20a, or a sensor value output from a capacitance sensor 13 arranged on the back side of the attachment unit 20b, and transmits the sensor value to the memory unit 32.
More specifically, the sensor value acquisition unit 30 detects a change in the sensor value to determine the presence or absence of a buried object 91 in the movement range of the buried object exploration device 10 using the position information acquired by the position information acquisition unit 31, each time the buried object exploration device 10 reaches a predetermined movement amount along the wall surface 90. As a result, the exploration image conversion processing unit 35 described later can generate an exploration image in the movement area for each predetermined movement amount, using the output result from the capacitance sensor 13.

The position information acquisition unit 31 acquires the output from the optical sensor 16 arranged on the back side of the main body unit 11, and transmits it to the storage unit 32. In this way, the position information acquired by the position information acquisition unit 31 enables the buried object exploration device 10 to detect its position on the wall surface 90, as well as its amount of movement and direction of movement.
The memory unit 32 stores the sensor value data and position information data received from the sensor value acquisition unit 30, a buried object table (see FIG. 22 ) including dimensional information of the buried object 91 in the scanning direction of the buried object exploration device 10, the exploration image converted from the capacitance data in the exploration image conversion processing unit 35, a grid layer displayed superimposed on the exploration image, a reference point display layer, etc. Then, the memory unit 32 transmits the exploration image, etc. called up by the exploration image calling unit 38 to the data transfer unit 39 and the display control unit 40.

The exploration images stored in the storage unit 32 are grouped in units of one scan and stored together with time information about the scanning of the wall surface 90. In this embodiment, exploration images corresponding to multiple scans are stored in the storage unit 32.
In addition, the exploration images converted for each specified amount of movement are accumulated and stored, for example, after the power of the buried object exploration device 10 is turned on, and multiple exploration images are saved in a grouped state for one scanning unit.

The buried object presence/absence determining unit 33 determines the presence or absence of a buried object 91 in the wall surface 90 depending on whether the detected sensor value exceeds a predetermined threshold value (edge determination process). This makes it possible to determine the presence or absence of a buried object 91 based on the output results of the capacitance sensor 13, the electromagnetic induction sensor 14, etc.
The dimension calculation processing unit 34 calculates an estimated value of the dimension (width, etc.) of the buried object 91 in the wall surface 90 based on the sensor values detected by the capacitance sensor 13, the electromagnetic induction sensor 14, etc. Specifically, the dimension calculation processing unit 34 detects the edge portions at both ends where the output signal of the capacitance sensor 13 changes, and calculates an estimated value of the dimension of the buried object 91 between them.

The exploration image conversion processing unit 35 converts the sensor values detected by the capacitance sensor 13, the electromagnetic induction sensor 14, etc. into an exploration image indicating the presence or absence of a buried object 91. More specifically, the exploration image conversion processing unit 35 generates an exploration image using the sensor values acquired each time the movement amount of the buried object exploration device 10 along the wall surface 90 reaches a predetermined distance, based on the position information of the buried object exploration device 10 detected by the position information acquisition unit 31 described above.

The buried object estimation unit 36 compares the estimated value of the dimension (width) in the scanning direction of the buried object 91 calculated by the dimension calculation processing unit 34 with the width dimensions for each type of buried object 91 contained in the buried object table (see Figure 22) stored in the memory unit 32, and estimates the type of the corresponding buried object 91.
The input receiving unit 37 receives operation contents from the user inputted to the operation input unit 15 including the above-mentioned power button 15a, grid display button 15b, scale switching button 15c, select/scroll button 15d, and the like.

The exploration image recall unit 38 recalls the exploration image stored in the memory unit 32, for example, based on the operation content input by the user via the operation input unit 15, and transmits it to the data transfer unit 39 and the display control unit 40.
In addition, after the exploration image is stored in the memory unit 32, the display control unit 40 may control the display unit 12 so that it is displayed in real time during scanning by the buried object exploration device 10, regardless of the operation content from the user input to the operation input unit 15.

The data transfer unit 39 transmits the exploration image, the detection results of the buried object 91, etc. to an external device, a server, etc.
The display control unit 40 causes the display screen 12a of the display unit 12 to display the exploration image (see FIG. 6, etc.) indicating the presence or absence of the buried object 91 generated in the exploration image conversion processing unit 35 described above. Furthermore, the display control unit 40 causes the exploration image and the grid layer and the reference point display layer stored in the memory unit 32 to be superimposed and displayed on the display screen 12a of the display unit 12.

As shown in FIG. 6, the exploration image displays the buried object 91 by combining multiple exploration images generated from sensor values acquired along the trajectory of the buried object exploration device 10 scanned along the wall surface 90. Also, as shown in FIG. 6, the exploration image displays the location of the buried object 91 in different colors or gradations, for example, black, and white, where there is no buried object 91.

The attachment identifying unit 41 identifies the types of the attachment units 20a, 20b attached to the main body unit 11. More specifically, the attachment identifying unit 41 detects a combination of outputs from identification terminals that differ for each type of the attachment units 20a, 20b, and identifies the types of the attachment units 20a, 20b.
The method by which the attachment identifying unit 41 identifies the attachment units 20a and 20b will be described in detail later.

<Detachment mechanism 50>
In the buried object exploration device 10 of this embodiment, a plurality of different attachment parts 20a to 20c are attached to a common main body part 11 via an attachment/detachment mechanism 50, as shown in FIG.
For ease of explanation, the detachable mechanism 50 will be described using an example in which the attachment part 20a including the electromagnetic induction sensor 14 is attached to the main body part 11, but the same applies to the other attachment parts 20b, 20c.

As shown in FIG. 9 , the main body 11 includes an upper case 51 , a lower case 52 , and a control board 53 .
The upper case 51 is a housing that covers the upper surface side of the main body 11, and is provided with the above-mentioned operation input unit 15. Furthermore, a locked portion (locking mechanism) 51a that locks with a locking claw 67a (see FIG. 10 ), which will be described later, is provided at an end of the upper case 51 on the connection side with the attachment unit 20a.

The lower case 52 is a housing that covers the lower side of the main body 11, and is fixed to the upper case 51 by four screws 55b so as to sandwich the control board 53 between the lower case 52 and the upper case 51. On the inside of both side surfaces of the lower case 52, guide ribs (guide mechanisms) 52a formed approximately parallel to the mounting direction of the attachment part 20a are provided.
The guide ribs 52a are convex portions formed so as to protrude inward from both side surfaces of the lower case 52, and engage with guide grooves 64a on the attachment part 20a side, which will be described later.

The control board 53 includes the display unit 12, a connector 53a electrically connected to the electromagnetic induction sensor 14 on the attachment unit 20a side, and a guide hole 53b into which a guide pin 65a on the attachment unit 20a side, which will be described later, is inserted. The control board 53 is fixed to the upper case 51 by four screws 55a.
The connector 53a is connected to a connector 65c of a floating substrate 65 on the attachment part 20a side to acquire sensor values and the like detected on the attachment part 20a side.

The guide holes 53b are provided on both sides of the connector 53a and are formed substantially parallel to the mounting direction of the attachment part 20a. A guide pin 65a on the attachment part 20a side, which will be described later, is inserted into the guide holes 53b.
As shown in FIG. 10, the attachment unit 20 a has a cover 61 , a lower housing unit 62 , a coil 63 , an upper housing unit 64 , a floating substrate 65 , a spring (biasing member) 66 , and an operation unit 67 .

As shown in FIG. 10, the cover 61 is attached to the top surface of the upper housing part 64 so as to cover a floating substrate 65, a spring 66 and an operation part 67 from above, which will be described later.
The lower housing portion 62 is a base member that forms the lower surface side of the attachment portion 20a, and as shown in FIG. 10, has a substantially annular coil housing portion 62a.
The coil 63 is disposed in the coil storage section 62a of the lower housing section 62, and generates a magnetic field when an excitation current is supplied to the coil 63. When a buried object 91 such as a metal approaches while the magnetic field is generated in this manner, an eddy current is generated in the buried object 91 by electromagnetic induction, which causes a change in impedance of the coil 63, thereby making it possible to detect the buried object 91.

The upper housing part 64 is a housing that contains the coil 63 together with the lower housing part 62, and is joined to the lower housing part 62 on the underside. The upper housing part 64 has a cover 61 attached to its upper side, and contains a floating substrate 65, a spring 66, and an operation part 67, which will be described later. As shown in FIG. 10, the upper housing part 64 has a guide groove (guide mechanism) 64a, a fixing plate 64b, and a screw hole 64c.

The guide groove (guide mechanism) 64a engages with the guide rib 52a of the lower case 52 described above, and guides the attachment part 20a in the mounting direction relative to the main body part 11. The guide grooves 64a are formed on the outer sides of both side surfaces of the upper housing part 64, approximately parallel to the mounting direction of the attachment part 20a relative to the main body part 11.
The fixing plate 64b is a plate-like member provided upright on the upper surface of the upper housing portion 64, and the floating substrate 65 is fixed thereto by two shoulder screws 65b.

The screw holes 64c are provided near both ends of the fixing plate 64b, and shoulder screws 65b are screwed into the screw holes 64c.
As shown in FIG. 10, the floating board 65 has guide pins 65a, shoulder screws 65b and a connector 65c, and is connected to the connector 53a on the main body 11 side when the attachment part 20a is mounted on the main body 11.

The guide pin 65a is a rod-shaped member that protrudes from the surface of the floating substrate 65 that is attached to the main body portion 11, and is positioned so that when the attachment portion 20a is attached to the main body portion 11, it reaches the main body portion 11 side before the connector 65c.
As a result, when the attachment part 20a is attached to the main body part 11, the connector 65c of the floating substrate 65 is connected to the connector 53a on the main body part 11 side in an aligned state by inserting the tip of the guide pin 65a into the guide hole 53b on the main body part 11 side.

The shoulder screw 65 b is attached to the surface of the floating substrate 65 on the side that is connected to the main body 11 , and regulates the range of movement of the floating substrate 65 .
As a result, the floating substrate 65 is mounted in a state in which it can move to a certain extent within the range of freedom set by the shoulder screw 65b, so that the attachment portion 20a can be easily connected to the main body portion 11.

When the attachment unit 20a is attached to the main body unit 11, the connector 65c is connected to the connector 53a on the main body unit 11 side. As a result, data of sensor values such as impedance changes of the coil 63 is transmitted to the main body unit 11 side.
As shown in FIG. 10, the spring 66 is disposed in the space defined by the cover 61 and the upper housing portion 64 together with the operating portion 67, and applies a biasing force that biases the operating portion 67 upward in the figure.

The operating portion 67 is a member that forms a locking mechanism that keeps the attachment portion 20a attached to the main body portion 11, and has a locking claw (locking mechanism) 67a and a tapered portion 67b, as shown in Figure 10.
The locking claw 67a is provided on the upper end of the operating portion 67 as shown in Fig. 10. When the attachment portion 20a shown in Fig. 11(a) is attached to the main body portion 11, the locking claw 67a is locked to the locked portion 51a of the upper case 51 on the main body portion 11 side as shown in Fig. 11(b). This makes the attachment portion 20a unable to move in a direction away from the main body portion 11, so that the attachment portion 20a can be fixed to the main body portion 11.

11(b) in a state where the locking claw 67a is locked to the locked portion 51a, the operating portion 67 is biased upward by the spring 66. Therefore, when attaching or detaching the attachment portion 20a to or from the main body 11, the operating portion 67 is operated downward to release the locking claw 67a from the locked portion 51a.
As shown in FIG. 11C, the tapered portion 67b is an inclined surface that slopes downward toward the main body 11, and is provided on the upper portion of the operating portion 67.

Here, when the attachment part 20a is attached to the main body part 11, as the attachment part 20a is brought closer to the main body part 11 in the attachment direction, the lower part of the inclined surface of the tapered part 67b comes into contact with the locked part 51a of the upper case 51. As the attachment part 20a is brought even closer to the main body part 11, the locked part 51a presses down the operating part 67 against the biasing force of the spring 66 while coming into contact along the inclined surface of the tapered part 67b. Then, when the attachment part 20a is attached to the main body part 11, the locked part 51a goes all the way up the inclined surface of the tapered part 67b, and the operating part 67 moves upward by the biasing force of the spring 66, so that the locking claw 67a is locked.
This allows the attachment portion 20 a to be fixed to the main body portion 11 in a locked state.

As described above, in the buried object exploration device 10 of this embodiment, the attachment mechanism 50 is provided between the main body 11 and the attachment part 20a that is detachably attached to the main body 11. The attachment mechanism 50 includes a floating substrate 65 including a guide pin 65a formed along the mounting direction of the attachment part 20a to the main body 11, and a guide hole 53b provided in the main body 11 into which the guide pin 65a is inserted.

As a result, the attachment part 20a is positioned relative to the main body part 11 by inserting the floating substrate 65 on the attachment part 20a side so that the guide pin 65a is inserted into the guide hole 53b provided on the main body part 11 side. Therefore, when the attachment part 20a shown in FIG. 12(a) is attached to the main body part 11, the connector 65c of the floating substrate 65 on the attachment part 20a side can be easily connected to the connector 53a on the main body part 11 side as shown in FIG. 12(b).

At this time, since the floating substrate 65 is attached in a state in which it can move within the range regulated by the step screw 65b, the connector 65c of the floating substrate 65 on the attachment part 20a side can be more easily connected to the connector 53a on the main body part 11 side.
Furthermore, the attachment/detachment mechanism 50 includes a guide mechanism that guides the attachment portion 20a to a connection position where the electromagnetic induction sensor 14 of the attachment portion 20a and the main body portion 11 are connected to each other.

The guide mechanism includes guide ribs 52a provided on the inside of both side surfaces of the lower case 52 on the main body 11 side, and guide grooves 64a provided on the outside of both side surfaces of the upper housing part 64 on the attachment part 20a side, with which the guide ribs 52a engage.
As a result, the attachment part 20a is guided to a position where the electromagnetic induction sensor 14 on the attachment part 20a side and the main body part 11 are connected to each other by engaging with the guide rib 52a and the guide groove 64a, so that the attachment part 20a can be attached to a predetermined position relative to the main body part 11.

The guide rib 52 a and the guide groove 64 a are provided substantially parallel to the mounting direction of the attachment part 20 a to the main body part 11 .
As a result, by moving the guide rib 52a along the guide groove 64a, the attachment part 20a can be guided along the direction in which it is attached to the main body part 11.

<Identification process of attachment parts 20a, 20b>
In the buried object detection device 10 of this embodiment, as described above, the attachment parts 20a to 20c, which include multiple types of detection parts (sensors) depending on the type of buried object 91 and the purpose of use, are used in a detachable state attached to the common main body part 11.
At this time, the attachment identifying section 41 provided on the main body section 11 side automatically identifies the type of the attached attachment section 20a to 20c.
Here, for example, the identification process in the attachment identification unit 41 when an attachment unit 20a including an electromagnetic induction sensor 14 and an attachment unit 20b including a capacitance sensor 13 are each attached to the main body unit 11 will be explained below using Figures 13 to 15.

When the attachment part 20a including the electromagnetic induction sensor 14 is attached to the main body part 11, as shown in Figure 13, the attachment identification part 41 provided on the main body part 11 side acquires signals obtained from the identification terminals 21a, 21b, and 21c included in the attachment part 20a.
In the example shown in FIG. 13, in the input ports 1, 2, and 3 on the main body 11 side, High/High/Low signals are detected in the order of the identification terminals 21a, 21b, and 21c.

On the other hand, when the attachment part 20b including the capacitance sensor 13 is attached to the main body part 11, as shown in Figure 14, the attachment identification part 41 provided on the main body part 11 side acquires signals obtained from the identification terminals 22a, 22b, and 22c included in the attachment part 20b.
In the example shown in FIG. 14, in the input ports 1, 2, and 3 on the main body 11 side, low/high/high signals are detected in the order of the identification terminals 22a, 22b, and 22c.

As a result, if the attachment identification unit 41 has stored a table or the like indicating which attachment unit 20a, 20b corresponds to which identification terminal output, the attachment identification unit 41 can automatically recognize the type of attachment unit 20a, 20b attached to the main body unit 11 by checking which attachment unit 20a, 20b corresponds to the output of the identification terminal identified by the attachment identification unit 41.

Here, the method for identifying the attachment parts 20a, 20b in the buried object exploration device 10 of this embodiment is carried out according to the flowchart of FIG.
That is, in step S1, it is determined whether or not either one of the attachment units 20a, 20b is attached to the main body unit 11. If it is detected that either one of the attachment units 20a, 20b is attached to the main body unit 11, the process proceeds to step S2.

Next, in step S2, with the attachments 20a and 20b attached to the main body 11, the attachment identifying unit 41 on the main body 11 side acquires the input states of the input ports 1, 2, and 3.
Next, in step S3, the connection state is determined. Specifically, the attachment identification unit 41 detects the output from the above-mentioned identification terminal and determines whether it is High/High/Low, Low/High/High, or other. If the detected signal is High/High/Low, proceed to S4; if it is Low/High/High, proceed to S5; otherwise, proceed to S6.

Next, in step S4, since it is determined in step S3 that a High/High/Low signal has been detected, it is determined that the corresponding attachment part is the attachment part 20a including the electromagnetic induction sensor 14, and the processing ends.
Next, in step S5, since it is determined in step S3 that a Low/High/High signal has been detected, it is determined that the corresponding attachment part is attachment part 20b including capacitance sensor 13, and the process ends.

Next, in step S6, since it is determined in step S3 that a signal other than High/High/Low and Low/High/High has been detected, it is determined that the attachment unit includes an undefined sensor, and the process ends.
As described above, in the buried object exploration device 10 of this embodiment, the attachment identification unit 41 on the main body 11 side detects a combination of outputs from identification terminals that differ for each type of attachment unit 20a, 20b, and identifies the type of attachment unit 20a, 20b.

This allows the type of attachment unit 20a, 20b attached to the main body unit 11 to be identified, for example, by the difference in the combination of outputs from the identification terminals that output High/Low signals.

<From generating exploration images to saving them>
In the buried object detection device 10 of this embodiment, with the above-described configuration, a detection image indicating the presence or absence of a buried object 91 within the wall surface 90 is generated based on the changes in the sensor values obtained as a result of scanning along the wall surface 90.
The process of generating the exploration image will now be described with reference to the flowchart of FIG.
That is, in step S<b>11 , the sensor value acquisition unit 30 acquires a sensor value detected by the capacitance sensor 13 or the electromagnetic induction sensor 14 attached to the main body unit 11 .
Next, in step S<b>12 , the position information acquisition unit 31 acquires the position information of the buried object exploration device 10 detected by the optical sensor 16 .

Next, in step S13, it is determined whether or not the buried object exploration device 10 has moved along the wall surface 90, based on the position information of the buried object exploration device 10 acquired by the position information acquisition unit 31. If it is determined that the buried object exploration device 10 has moved, the process proceeds to step S14, and if it is determined that the buried object exploration device 10 has not moved, step S13 is repeated until it is determined that the buried object exploration device 10 has moved.
Next, in step S14, since it has been determined in step S13 that the buried object exploration device 10 has moved, the coordinates (relative coordinates) indicating the current position of the buried object exploration device 10 are calculated and acquired.

Next, in step S15, the sensor value acquired in step S11 is stored in the storage unit 32, and the process proceeds to step S16.
This allows the sensor value acquired by the sensor value acquisition unit 30 to be stored, for example, each time the position information acquisition unit 31 detects that the position of the buried object detection device 10 detected by the optical sensor 16 has reached a predetermined amount of movement.

Next, in step S16, the buried object presence/absence determining unit 33 performs a process of determining the presence or absence of a buried object 91 in the scanning range based on the acquired sensor value.
Next, in step S17, buried object presence/absence determining section 33 determines whether or not a buried object 91 is present. If present, the process proceeds to step S18, and if not, the process proceeds to step S19.

Next, in step S18, since it was determined in step S17 that a buried object 91 is present, the dimension calculation processing unit 34 calculates an estimated value of the dimension (width) of the buried object 91 in the scanning direction of the buried object exploration device 10.
Next, in step S19, regardless of the presence or absence of the buried object 91, the exploration image conversion processing unit 35 performs a process of converting the sensor value acquired by the sensor value acquisition unit 30 into an exploration image.

Next, in step S20, the exploration image generated in step S19 is displayed on the display unit 12 and stored in the memory unit 32.
In this embodiment, by following the above-described process, an exploration image is generated using the sensor values detected by the capacitance sensor 13 or the electromagnetic induction sensor 14, and is displayed on the display unit 12 and stored in the memory unit 32.

<From the start of scanning to storing the image>
Next, the detailed steps from the start of scanning along the wall surface 90 to the storage process of the exploration image in the buried object exploration device 10 of this embodiment will be described below with reference to the flowcharts of FIGS.

(a) Coordinate Acquisition Processing The coordinate acquisition processing in S14 of FIG. 16, which is performed in the buried object exploration device 10 of this embodiment, will be described in detail below with reference to the flowchart of FIG.
In this embodiment, when scanning along a wall surface 90 is started using the buried object detection device 10, in step S21, as shown in Figure 17, position information detected by the optical sensor 16 is obtained as coordinate change (X, Y).
Next, in step S22, the coordinate change amount acquired in step S21 is added to the accumulated coordinate.
Next, in step S23, the accumulated coordinates obtained in step S22 are set as the current position of the buried object exploration device 10.

(b) Buried Object Presence/Absence Determination Process The process of determining the presence/absence of a buried object 91 in S17 of FIG. 16, which is carried out by the buried object exploration device 10 of this embodiment, will be described in detail below with reference to the flowchart of FIG.

First, in step S31, a difference between the capacitance sensor 13 or the electromagnetic induction sensor 14 and a reference value (minimum value) is calculated and an offset process is performed.
Next, in step S32, the smaller of the difference data between center and left and center and right obtained in step S31 is calculated as a judgment value.
Next, in step S33, it is determined whether the determination value is equal to or greater than a predetermined threshold value. If the determination value is equal to or greater than the predetermined threshold value, the process proceeds to step S34, and if the determination value is less than the predetermined threshold value, the process proceeds to step S35.

Next, in step S34, since it is determined in step S33 that the determination value is equal to or greater than the predetermined threshold value, it is determined that the buried object 91 is present in that scanning area, and the process ends.
On the other hand, in step S35, since it is determined in step S33 that the determination value is less than the predetermined threshold value, it is determined that there is no buried object 91 in that scanning area, and the process ends.

(c) Buried Object Estimation Processing The buried object 91 estimation processing in S18 of FIG. 16, which is performed in the buried object exploration device 10 of this embodiment, will be described in detail below with reference to the flowchart of FIG.
First, in step S41, the continuous width (length) in the scanning direction of the buried object 91 before and after the current position of the buried object exploration device 10 is obtained from the obtained data storage table shown in FIG.
Here, the acquired data storage table contains information such as acquisition time, coordinates (X, Y), detection results of the capacitance sensor, buried object determination results, type of buried object, and dimensions, as shown in FIG.

The type of buried object contained in the acquired data storage table shown in FIG. 23 is acquired as a result of estimating the type of buried object 91 by referring to the width dimension among the information on the name, width, and thickness for each type of buried object 91 shown in FIG. 22 and comparing it with the estimated value of the dimension of the detected buried object.
Next, in the processing of steps S42 to S46, the buried object table shown in FIG. 22 is referenced (S43), and the number of materials (foundations, through columns, pipe columns, partition walls, beams, diagonal braces, rafters, furring strips, etc.) that match the continuous width (length) in the scanning direction of the buried object 91 obtained in step S41 are repeatedly checked (S44).

Then, in step S44, if the width dimension substantially matches that of any of the buried objects 91 included in the buried object table, the process proceeds to step S46 to estimate the type of the buried object 91. Then, the buried object table is returned so as to reflect the estimation result, and the process ends.
On the other hand, in step S44, if the width dimension does not match any of the buried objects 91 included in the buried object table, the processes of steps S42 to S46 are repeated until all types in the buried object table have been checked, and then the process ends.

(d) Search Image Conversion Processing The search image conversion processing in S19 of FIG. 16, which is performed in the buried object exploration device 10 of this embodiment, will be described in detail below with reference to the flowchart of FIG.
Here, the process of always expanding the drawing range in the up-down direction (vertical direction) regardless of the moving direction of the buried object exploration device 10 will be described using the flowchart shown in FIG.

In step S51, the determination value calculated in step S32 of the buried object presence determination process shown in FIG. 18 is converted into 255 gradations of brightness.
Next, in step S52, the position coordinates included in the acquired data storage table shown in FIG. 23 are drawn in the display buffer area with the converted brightness, and a search image is generated.

In the display buffer area, coordinates (X, Y) and the corresponding R, G, and B values are stored, as shown in FIG.
Next, in step S53, it is determined whether or not it has been possible to determine the dimensions of the buried object 91. If it has been possible to determine the dimensions, the process proceeds to step S54, and if it has not been possible to determine the dimensions, the process ends.
Next, in step S54, the buried object 91 whose dimensions have been determined and its dimensions (scanning direction) are stored in the acquired data storage table shown in FIG. 23, and the process ends.

(e) Exploration Image Storage Processing The exploration image storage processing in S20 of FIG. 16, which is performed in the buried object exploration device 10 of this embodiment, will be described in detail below with reference to the flowchart of FIG.

First, in step S61, it is determined whether or not an image clear operation such as pressing an exploration start button by the user has been accepted.
If an image clear operation has been received, the process proceeds to step S62, and if not, the process ends.
Next, in step S62, the search image in the display buffer area shown in FIG. 24 is registered in a search image storage table shown in FIG. 25 before the screen is cleared.

Here, in the search image storage table, the date and time when the search image was generated and the image data ID assigned to each search image are stored in an associated state, as shown in Fig. 25. Note that the search image stored in the search image storage table is stored as image data corresponding to one operation.
Next, in step S63, the display buffer area is cleared, and the process ends.

[Other embodiments]
Although one embodiment of the present invention has been described above, the present invention is not limited to the above embodiment, and various modifications are possible without departing from the gist of the invention.

(A)
In the above embodiment, the present invention has been described as an example of a buried object exploration device and an identification method, but the present invention is not limited to this.
For example, the present invention may be realized as an identification program that causes a computer to execute the above-mentioned buried object exploration device identification method.
This identification program is stored in a memory (storage unit) mounted on the buried object exploration device, and the CPU reads the identification program stored in the memory and causes the hardware to execute each step. More specifically, the CPU reads the identification program and executes the above-mentioned attachment detection step and identification step, thereby achieving the same effects as those described above.
Furthermore, the present invention may be realized as a recording medium storing an identification program for a buried object exploration device.

(B)
In the above embodiment, an example has been described in which the attachment parts 20a to 20c are attached and held to the main body part 11 by the locking mechanism formed by the locking claw 67a and the locked part 51a. However, the present invention is not limited to this.
For example, instead of the locking mechanism described in the above embodiment, an adhesive portion such as a magnet may be used to adsorb and hold the attachment portion to the main body portion.

(C)
In the above embodiment, a buried object detection device that detects buried objects such as wood, metal, etc. is given as an example of an object to be detected by the buried object detection device 10. However, the present invention is not limited to this.
For example, the buried object detection device may be equipped with an attachment that can detect heat, wood, and metal as other detection objects.

(D)
In the above embodiment, an example has been described in which the types of the attachment parts 20a, 20b attached to the main body part 11 are identified by detecting the output signal of the identification terminal. However, the present invention is not limited to this.

As a method of identifying an attachment part attached to a main body part, instead of detecting the output of an identification terminal, for example, an RFID (Radio Frequency Identification) tag provided on the attachment part and a communication part on the main body part may transmit and receive data via wireless communication to identify the type of attachment part.

(E)
In the above embodiment, an example has been described in which three types of attachment parts with different detection methods are identified: the attachment part 20a including the electromagnetic induction sensor 14, the attachment part 20b including the capacitance sensor 13, and an undefined attachment part other than the above. However, the present invention is not limited to this.
For example, two or four or more types of attachment parts may be distinguishable.

(F)
In the above embodiment, an example has been described in which the guide mechanism is configured by combining the guide rib 52a provided on the main body 11 side and the guide groove 64a provided on the attachment part 20a side. However, the present invention is not limited to this.
For example, the guide mechanism may be configured such that the guide rib and the guide groove are provided on opposite members, i.e., the guide rib may be provided on the attachment portion side and the guide groove on the main body portion side.

(G)
In the above embodiment, an example has been described in which the floating board 65, the movement range of which is restricted by the step screw 65b, is provided on the attachment part 20a side, but the present invention is not limited to this.
For example, a general substrate may be provided instead of the floating substrate.

The buried object detection device of the present invention has the effect of being able to identify the type of attachment part attached to the main body part even when the main body part is used in common, for example, when the types of buried objects to be detected or the detection sensitivity are different, and therefore can be widely applied to buried object detection devices that detect various buried objects.

10 Buried object detection device 11 Main body 12 Display 12a Display screen 13 Capacitive sensor (first detection unit)
13a: sensor value acquisition unit 13b: identification terminal 14: electromagnetic induction sensor (second detection unit)
14a Sensor value acquisition unit 14b Identification terminal 15 Operation input unit 15a Power button 15b Grid display button 15c Scale switching button 15d Select/scroll button 16 Optical sensor 20a Attachment unit 20b Attachment unit 20c Attachment units 21a to 21c Identification terminals 22a to 22c Identification terminals 30 Sensor value acquisition unit 31 Position information acquisition unit 32 Memory unit 33 Buried object presence/absence determination unit 34 Dimension calculation processing unit 35 Exploration image conversion processing unit 36 Buried object estimation unit 37 Input reception unit 38 Exploration image calling unit 39 Data transfer unit 40 Display control unit 41 Attachment identification unit (identification unit)
50 Detachable mechanism 51 Upper case 51a Locked part (locking mechanism)
52 Lower case 52a Guide rib (guide mechanism)
53 Control board 53a Connector 53b Guide holes 55a, 55b Screw 61 Cover 62 Lower housing part 62a Coil storage part 63 Coil 64 Upper housing part 64a Guide groove (guide mechanism)
64b: fixed plate 64c: screw hole 65: floating board 65a: guide pin 65b: stepped screw 65c: connector 66: spring (urging member)
67 Operation section 67a Locking claw (locking mechanism)
67b Tapered portion 90 Wall surface (object)
91 Buried object 91a Pipe pillar 91b Stud

Claims (17)

A buried object detection device for detecting buried objects contained within a target object,
A main body portion,
an attachment part that is detachably attached to the main body part and has a detection part that detects the buried object;
an exploration image conversion processing unit that converts the detection result in the detection unit into an exploration image;
an identification unit that identifies the type of the attachment unit attached to the main body unit;
It is equipped with
the identification unit detects a combination of identification terminals that differs for each type of the attachment unit, and identifies the type of the attachment unit.
Buried object detection equipment. The types of the attachment parts include at least one of differences in a method for detecting the buried object, a type of the buried object to be detected, and a difference in detection sensitivity.
The buried object exploration device according to claim 1. The attachment unit includes a first detection unit that detects the buried object by a capacitance method and a second detection unit that detects the buried object by an electromagnetic induction method.
The buried object exploration device according to claim 2. The attachment unit includes a third detection unit that detects wood as the buried object and a fourth detection unit that detects metal.
The buried object exploration device according to claim 2 or 3. Further comprising a display unit that displays the exploration image converted by the exploration image conversion processing unit.
The buried object exploration device according to any one of claims 1 to 4. The device further includes a mounting mechanism for mounting the attachment part in a detachable state to the main body part.
The buried object exploration device according to any one of claims 1 to 5. The attachment/detachment mechanism includes a floating substrate including a guide pin formed along a mounting direction of the attachment part relative to the main body part, and a guide hole provided in the main body part into which the guide pin is inserted.
The buried object exploration device according to claim 6 . The attachment/detachment mechanism includes a guide mechanism that guides the attachment part to a connection position where the detection part and the main body part of the attachment part are connected to each other.
The buried object exploration device according to claim 6 or 7 . The guide mechanism includes a guide rib provided on the attachment part side or the main body part side, and a guide groove provided on the main body part side or the attachment part side and engaged with the guide rib.
The buried object exploration device according to claim 8 . The guide rib and the guide groove are provided substantially parallel to a mounting direction of the attachment part relative to the main body part.
The buried object exploration device according to claim 9. The attachment/detachment mechanism includes a locking mechanism that holds the attachment unit from being disconnected from the main body unit at a connection position where the detection unit and the main body unit of the attachment unit are connected to each other.
The buried object exploration device according to any one of claims 6 to 10 . The locking mechanism includes, at the connection position, a locking claw provided on the main body portion or the attachment portion, and a locked portion provided on the attachment portion or the main body portion to which the locking claw is locked.
The buried object exploration device according to claim 11 . The locking mechanism further includes a biasing member that biases the locking claw in a direction intersecting a mounting direction of the attachment part relative to the main body part, and an operating part that operates the biasing member in a direction opposite to the biasing direction when removing the attachment part.
The buried object exploration device according to claim 12. The attachment/detachment mechanism includes an adsorption portion that adsorbs the attachment portion to the main body portion at a connection position where the detection portion and the main body portion of the attachment portion are connected to each other.
The buried object exploration device according to any one of claims 6 to 13 . the attachment/detachment mechanism further includes a shoulder screw attached to a surface of the floating substrate on a side connected to the main body portion and configured to restrict a movement range of the floating substrate.
The buried object exploration device according to claim 7 . A method for identifying a type of an attachment part attached to a main body part in a buried object detection device including an attachment part having a detection part for detecting buried objects contained within a target object, and a main body part to which the attachment part is detachably attached, comprising:
a mounting detection step of detecting that the attachment unit is attached to the main body unit;
an identification step of detecting a combination of identification terminals that differs for each type of the attachment unit when it is detected that the attachment unit is attached to the main body unit in the attachment detection step, and identifying the type of the attachment unit;
A method for identifying a buried object detection device comprising : A buried object detection device including an attachment unit having a detection unit for detecting buried objects contained within a target object, and a main body to which the attachment unit is detachably attached, the buried object detection device comprising: a program for identifying a type of the attachment unit attached to the main body, the program comprising:
a mounting detection step of detecting that the attachment unit is attached to the main body unit;
an identification step of detecting a combination of identification terminals that differs for each type of the attachment unit when it is detected that the attachment unit is attached to the main body unit in the attachment detection step, and identifying the type of the attachment unit;
An identification program that causes a computer to execute a method for identifying a buried object exploration device comprising the steps of:

Images