Buried object detection device, its identification method, and identification program

Abstract

To provide a buried object survey device, and an identification method and an identification program for the same which can identify a type of an attachment part attached to a body part even when a body portion is commonly used in a case where, for example, types and detection sensitivities of buried objects being detection objects are different.SOLUTION: A buried object survey device 10 comprises a body part 11, attachment parts 20a, 20b, a survey image conversion processing part 35, and an attachment identification part 41. The attachment parts 20a, 20b are attached to the body part 11 in a detachable state and each has a detection part for detecting a buried object 91. The survey image conversion processing part 35 converts a detection result in the detection part into a survey image. The attachment identification part 41 identifies the types of the attachment parts 20a, 20b attached to the body part 11.SELECTED DRAWING: Figure 7

Description

Technical Field

[0001] The present invention relates to an embedded object detection device for detecting embedded objects such as metals and woods contained in, for example, walls and concrete, and an identification method and an identification program thereof.

Background Art

[0002] In recent years, for example, as a device for detecting embedded objects such as reinforcing bars contained in concrete, a device for detecting embedded objects based on changes in reflected waves of electromagnetic waves radiated toward the surface of concrete while moving on the surface of concrete has been used. For example, Patent Document 1 discloses an embedded object detection device including: an input unit that inputs data obtained by acquiring signal values of reflected waves when electromagnetic waves are reflected by an embedded object along a side line; a generation unit that generates a virtual waveform template having a spread of a reflection waveform according to a propagation depth of the electromagnetic waves; 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.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] However, the above-described conventional embedded object detection device has the following problems. That is, in the embedded object detection device disclosed in the above publication, for example, when the types of embedded objects to be detected are different or when the detection sensitivity ranges are different, a dedicated embedded object detection device according to the application is required.

[0005] An object of the present invention is to provide a buried object exploration device, an identification method thereof, and an identification program capable of identifying the type of an attachment portion attached to a main body portion even when the main body portion is commonly used when the type of a buried object to be detected and the detection sensitivity are different.

Means for Solving the Problems

[0006] The buried object exploration device according to the first invention is a buried object exploration device that detects a buried object included in an object, and includes a main body portion, an attachment portion, a exploration image conversion processing portion, and an identification portion. The attachment portion is detachably attached to the main body portion and has a detection portion for detecting a buried object. The exploration image conversion processing portion converts the detection result in the detection portion into an exploration image. The identification portion identifies the type of the attachment portion attached to the main body portion.

[0007] Here, in a buried object exploration device including a main body portion and an attachment portion that is detachable from the main body portion, the type of the attachment portion including a detection portion for detecting a buried object is identified. Here, the buried object exploration device of the present invention may adopt various methods as the detection portion, for example, a capacitance type using a capacitance sensor that detects a change in capacitance to detect a buried object, an electromagnetic induction type, etc.

[0008] The type of the attachment portion includes, for example, at least one of a difference in a method (capacitance type, electromagnetic induction type, etc.) for detecting a buried object, a type of a buried object to be detected (wood, metal, heat, etc.), and a difference in detection sensitivity. Thereby, in a buried object exploration device including a main body portion and an attachment portion that is detachable from the main body portion, it is possible to automatically identify what kind of detection portion the attached attachment portion includes and is suitable for. As a result, for example, when the type of a buried object to be detected and the detection sensitivity are different, even when the main body portion is commonly used, the type of the attachment portion attached to the main body portion can be identified.

[0009] The buried object detection device according to the second invention is the buried object detection device according to the first invention, and the types of the attachment parts include at least one of differences in the method of detecting buried objects, differences in the types of detected buried objects, and differences in detection sensitivity. Thereby, for example, when different types of attachment parts such as differences in detection methods such as capacitive type and electromagnetic induction type, differences in buried objects to be detected such as wood, metal, heat, etc., and differences in the set range of detection sensitivity are attached to the main body part, the type of the attachment part can be automatically identified.

[0010] The buried object detection device according to the third invention is the buried object detection device according to the second invention, and the attachment part includes a first detection part that detects buried objects in a capacitive manner and a second detection part that detects buried objects in an electromagnetic induction manner. Thereby, it is possible to automatically identify whether the attachment part attached to the main body part includes a capacitive detection part or an electromagnetic induction detection part.

[0011] The buried object detection device according to the fourth invention is the buried object detection device according to the second or third invention, and the attachment part includes a third detection part that detects wood and a fourth detection part that detects metal as buried objects. Thereby, it is 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.

[0012] The buried object detection device according to the fifth invention is the buried object detection device according to any one of the first to fourth inventions, and the identification part detects a combination of different identification terminals for each type of attachment part to identify the type of the attachment part. Thereby, the type of the attachment part attached to the main body part can be identified, for example, by the difference in the combination of identification terminals that output High / Low signals.

[0013] The buried object exploration device according to the sixth invention is a buried object exploration device according to any one of the first to fifth inventions, and further includes a display unit that displays the exploration image converted by the exploration image conversion processing unit. Thereby, by displaying the exploration image converted from the detection result in the detection unit, the user can perform the work while looking at the display unit provided in the buried object exploration device.

[0014] The buried object exploration device according to the seventh invention is a buried object exploration device according to any one of the first to sixth inventions, and further includes a detachable mechanism in which an attachment unit is detachably attached to the main body unit. Thereby, by means of the detachable mechanism, a plurality of types of attachment units can be detachably attached to the main body unit.

[0015] The buried object exploration device according to the eighth invention is a buried object exploration device according to the seventh invention, and the detachable mechanism includes a floating substrate including a guide pin formed along the mounting direction of the attachment unit with respect to the main body unit, and a guide hole provided in the main body unit into which the guide pin is inserted. Thereby, by inserting the floating substrate on the attachment unit side so that the guide pin is inserted into the guide hole provided on the main body unit side, the attachment unit can be mounted at a predetermined position with respect to the main body unit.

[0016] The buried object exploration device according to the ninth invention is a buried object exploration device according to the seventh or eighth invention, and the detachable mechanism includes a guide mechanism that guides the attachment unit to a connection position where the detection unit of the attachment unit and the main body unit are connected to each other. Thereby, since the attachment unit is guided to a position where the detection unit on the attachment unit side and the main body unit are connected to each other, the attachment unit can be mounted at a predetermined position with respect to the main body unit.

[0017] The buried object detection device according to the tenth invention is the buried object detection device according to the ninth invention, wherein 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. Thereby, since the attachment part is guided to the position where the detection part on the attachment part side and the main body part are connected to each other by engagement with the guide rib and the guide groove, the attachment part can be attached to the main body part at a predetermined position.

[0018] The buried object detection device according to the eleventh invention is the buried object detection device according to the tenth invention, wherein the guide rib and the guide groove are provided substantially parallel to the mounting direction of the attachment part with respect to the main body part. Thereby, by moving the guide rib along the guide groove, the attachment part can be guided along the direction in which the attachment part is attached to the main body part.

[0019] The buried object detection device according to the twelfth invention is the buried object detection device according to any one of the seventh to eleventh inventions, wherein the detaching and attaching mechanism includes a locking mechanism that holds the connection between the attachment part and the main body part so as not to be released at the connection position where the detection part of the attachment part and the main body part are connected to each other. Thereby, at the connection position where the detection part of the attachment part and the main body part are connected to each other, the attachment part can be held by the locking mechanism so as not to be separated from the main body part.

[0020] The buried object detection device according to the thirteenth invention is the buried object detection device according to the twelfth invention, wherein the locking mechanism includes a locking claw provided on the main body part or the attachment part at the connection position, and a locked part provided on the attachment part or the main body part and locked by the locking claw. Thereby, by configuring the locking mechanism by the combination of the locking claw and the locked part, the attachment part and the main body part can be held in a connected state with a simple configuration.

[0021] The buried object detection device according to the 14th invention is the buried object detection device according to the 13th invention, wherein the locking mechanism further includes a biasing member that biases the locking claw in a direction intersecting the mounting direction of the attachment portion with respect to the main body portion, and an operation portion that is operated on the side opposite to the biasing direction of the biasing member when removing the attachment portion. Thus, since the locking claw that is locked to the non-locking portion is biased in a direction intersecting the mounting direction by a biasing member such as a spring, by operating the operation portion on the side opposite to the biasing direction, the locking 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.

[0022] The buried object detection device according to the 15th invention is the buried object detection device according to any one of the 7th to 14th inventions, wherein the attachment / detachment mechanism includes a suction portion that sucks the attachment portion with respect to the main body portion at a connection position where the detection portion included in the attachment portion and the main body portion are connected to each other. Thus, for example, by using a suction portion such as a magnet to connect the main body portion and the attachment portion, the attachment portion can be made detachable with respect to the main body portion with a simple configuration.

[0023] The buried object detection device according to the 16th invention is the buried object detection device according to the 8th invention, wherein the attachment / detachment mechanism is attached to the surface of the floating substrate on the connection side with the main body portion, and further includes a stud bolt that restricts the movement range of the floating substrate. Thus, within the range of freedom set by the stud bolt, the floating substrate can move, so that the connection of the attachment portion to the main body portion can be facilitated.

[0024] The identification method of the buried object exploration device according to the 17th invention is a method for identifying the type of an attachment unit having a detection unit that detects a buried object contained in an object, and a main body unit to which the attachment unit is detachably attached, in a buried object exploration device, and includes a mounting detection step and an identification step. In the mounting detection step, it is detected that the attachment unit is attached to the main body unit. In the identification step, when it is detected in the mounting detection step that the attachment unit is attached to the main body unit, the type of the attachment unit is identified.

[0025] Here, in a buried object exploration device including a main body unit and an attachment unit that is detachable from the main body unit, the type of the attachment unit including a detection unit for detecting a buried object is identified. Here, the buried object exploration device may adopt various methods as the detection unit, for example, a capacitance type using a capacitance sensor that detects a change in capacitance to detect a buried object, an electromagnetic induction type, etc.

[0026] The type of the attachment unit includes, for example, at least one of the difference in the method of detecting a buried object (capacitance type, electromagnetic induction type, etc.), the type of the detected buried object (wood, metal, heat, etc.), and the difference in detection sensitivity. Thereby, in a buried object exploration device including a main body unit and an attachment unit that is detachable from the main body unit, it is possible to automatically identify what kind of detection unit the attached attachment unit includes and is suitable for. As a result, for example, when the type of the buried object to be detected and the detection sensitivity are different, even when the main body part is commonly used, the type of the attachment unit attached to the main body unit can be identified.

[0027] The identification program of the buried object exploration device according to the 18th invention causes a computer to execute an identification method of a buried object exploration device including a detection step and an identification step. The detection step detects that the attachment part is attached to the main body part. In the identification step, when it is detected in the attachment detection step that the attachment part is attached to the main body part, the type of the attachment part is identified. The identification program of the buried object exploration device according to the 18th invention is a program for identifying the type of the attachment part attached to the main body part in a buried object exploration device including an attachment part having a detection part for detecting a buried object included in an object and a main body part to which the attachment part is detachably attached.

[0028] Here, in a buried object exploration device including a main body part and an attachment part that is detachable from the main body part, the type of the attachment part including a detection part for detecting a buried object is identified. Here, the buried object exploration device may adopt various methods such as a capacitance type using a capacitance sensor that detects a change in capacitance to detect a buried object, an electromagnetic induction type, etc. as the detection part.

[0029] The type of the attachment part includes at least one of, for example, the difference in the method of detecting a buried object (capacitance type, electromagnetic induction type, etc.), the type of the detected buried object (wood, metal, heat, etc.), and the difference in detection sensitivity. Thereby, in a buried object exploration device including a main body part and an attachment part that is detachable from the main body part, it is possible to automatically identify what kind of detection part the attached attachment part includes and is suitable for.

[0030] As a result, for example, when the type of the buried object to be detected and the detection sensitivity are different, even when the main body part is used in common, the type of the attachment part attached to the main body part can be identified.

Effect of the Invention

[0031] According to the buried object exploration device of the present invention, for example, when the types of buried objects to be detected and the detection sensitivity are different, even when the main body part is commonly used, the type of the attachment part attached to the main body part can be identified.

Brief Description of the Drawings

[0032]

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Best Mode for Carrying Out the Invention

[0033] The buried object exploration device 10 and its identification method according to an embodiment of the present invention will be described below with reference to FIGS. 1 to 25 as follows. (1) Configuration of the buried object exploration device 10 As shown in FIG. 1, the buried object exploration device 10 according to the present embodiment moves along the wall surface (object) 90 and detects changes in sensor values by an electrostatic capacitance sensor 13 (see FIG. 7) or an electromagnetic induction sensor 14 (see FIG. 7) described later, thereby detecting buried objects 91 such as wood (pipe columns 91a, intermediate columns 91b) and metal contained in the wall surface 90.

[0034] As shown in FIGS. 2 to 4, the buried object exploration device 10 of the present embodiment has a plurality of attachment parts 20a, 20b, 20c prepared according to, for example, the type of the buried object 91 to be detected, the detection method, the detection sensitivity, etc., and is detachably attached to a common main body part 11. The attachment part 20a shown in FIG. 2 includes an electromagnetic induction type detection part (second detection part), and detects buried objects 91 such as steel bars in concrete, for example. The attachment part 20a also has an electromagnetic induction sensor 14 including a sensor value acquisition part 14a and an identification terminal (coil) 14b (see FIG. 7).

[0035] The attachment part 20b shown in FIG. 3 includes an electrostatic capacitance type detection part (first detection part), and detects changes in electrostatic capacitance while moving the buried object exploration device 10 along the wall surface 90, thereby detecting buried objects 91 such as wood behind a gypsum board, for example. The attachment part 20b also has an electrostatic capacitance sensor 13 including a sensor value acquisition part 13a and an identification terminal (electrostatic capacitance) 13b (see FIG. 7).

[0036] The attachment part 20c shown in FIG. 4 includes an IR sensor that detects heat, and detects the buried object 91 by detecting heat while moving the buried object exploration device 10 along the wall surface 90 when the buried object 91 is a pipe or the like that becomes hot. Accordingly, for example, by selecting an attachment part suitable according to the type, detection method, detection sensitivity, etc. of the buried object 91 to be detected and attaching it to the main body part 11, only the attachment part having the necessary functions can be prepared and used. Therefore, a buried object exploration device 10 that can be used in various scenarios can be obtained.

[0037] Regarding the configuration of the attachment and detachment mechanism 50 in which the attachment parts 20a and 20b are detachably attached to the main body part 11, it will be described in detail later. Also, the identification method for identifying the types of the attachment parts 20a and 20b attached to the main body part 11 will also be described in detail later. As shown in FIGS. 2 to 4, the buried object exploration device 10 includes a main body part 11 (display part 12, optical sensor 16 (see FIG. 7), and operation input part 15), and a plurality of attachment parts 20a, 20b, and 20c that are detachably attached to the main body part 11.

[0038] The wall surface 90 includes, for example, those with interior materials such as wallpaper pasted on the surfaces of gypsum boards or wooden plywood. Also, the buried object 91 includes, for example, wooden or metal frames such as columns, beams, and crossbars. As shown in FIG. 2, the main body part 11 is a resin member having a substantially rectangular parallelepiped shape. A display part 12 and an operation input part 15 are provided on the surface of the main body part 11 on the user side during use, and an optical sensor 16 is provided on the surface (back surface) on the wall surface 90 side opposite to the user. Also, at the upper end part of the main body part 11, as shown in FIG. 5, attachment parts 20a to 20c including a plurality of types of detection parts (sensors) with different detection methods, for example, are detachably attached.

[0039] The display part 12 is, for example, a liquid crystal display device, and as shown in FIG. 2, it is arranged on the surface of the main body part 11. The display part 12 displays, for example, settings of the buried object exploration device 10, exploration images showing detection results of the buried object 91, etc. (see FIG. 6), and the display content is switched according to the operation content input to the operation input part 15. The capacitance sensor 13 is disposed on the back side of the attachment portion 20b, and detects a change in capacitance when the buried object detector 10 is moved along the wall surface 90 in order to detect the buried object 91 existing in the wall surface 90.

[0040] The electromagnetic induction sensor 14 is disposed on the back side of the attachment portion 20a, and detects a change in the impedance of a coil (see FIG. 10) detected when the buried object detector 10 is moved along the wall surface 90 in order to detect the buried object 91 existing in the wall surface 90. The optical sensor 16 is disposed on the back side of the main body portion 11, and receives, for example, reflected light of infrared rays irradiated onto the wall surface 90 to acquire position information of the buried object detector 10.

[0041] As shown in FIGS. 2 to 4, the operation input unit 15 is disposed on the surface of the main body portion 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 disposed at the upper right side in the operation input unit 15. For example, when a long-press operation is performed, the power of the buried object detector 10 is turned on or off.

[0042] The grid display button 15b is disposed at the upper left side in the operation input unit 15, and is pressed when a grid layer in which a plurality of grid lines are arranged in a grid pattern is superimposed on the display screen 12a of the display unit 12 and displayed on the exploration image. Further, when the grid display button 15b is pressed again in a state where the grid layer is superimposed on the exploration image and displayed on the display screen 12a, measurement grids (grid lines) are displayed on the display screen 12a.

[0043] The scale switching button 15c is disposed at the upper center in the operation input unit 15, and is pressed, for example, when the superimposed exploration image and the grid layer are enlarged and displayed. The selection / scroll button 15d is arranged on the lower side in the operation input unit 15, and operations in four directions of up, down, left, and right are input. The selection / scroll button 15d is pressed when executing a command or the like that is selected by scrolling.

[0044] Further, as shown in FIG. 7, the buried object exploration device 10 includes, inside the main body 11, a sensor value acquisition unit 30, a position information acquisition unit 31, a storage 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 reception unit 37, an exploration image call unit 38, a data transfer unit 39, a display control unit 40, and an attachment identification unit (identification unit) 41.

[0045] The sensor value acquisition unit 30, position information acquisition unit 31, storage 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 call unit 38, data transfer unit 39, display control unit 40, and attachment identification unit 41 generated in the buried object exploration device 10 are generated as control blocks when the CPU reads various control programs stored in the memory.

[0046] The sensor value acquisition unit 30 acquires, for example, the sensor value output from the electromagnetic induction sensor 14 arranged on the back side of the attachment unit 20a or the sensor value output from the capacitance sensor 13 arranged on the back side of the attachment unit 20b, and transmits it to the storage unit 32. More specifically, the sensor value acquisition unit 30 uses the position information acquired by the position information acquisition unit 31 to detect a change in the sensor value every time the buried object exploration device 10 reaches a predetermined movement amount along the wall surface 90, in order to determine the presence or absence of the buried object 91 in the moved range. 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.

[0047] The position information acquisition unit 31 acquires the output from the optical sensor 16 disposed on the back side of the main body unit 11 and transmits it to the storage unit 32. Thereby, based on the position information acquired by the position information acquisition unit 31, the buried object exploration device 10 can detect the position on the wall surface 90, its movement amount, and the movement direction. The storage unit 32 stores the data of the sensor value and the data of the position information received from the sensor value acquisition unit 30, a buried object table (see FIG. 22) including the dimension 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, a reference point display layer, etc. that are displayed superimposed on the exploration image. Then, the storage unit 32 transmits the exploration image etc. called by the exploration image calling unit 38 to the data transfer unit 39 and the display control unit 40.

[0048] Note that the exploration images stored in the storage unit 32 are stored in a grouped state in units of one scan, together with the time information of scanning the wall surface 90. And in this embodiment, exploration images corresponding to multiple scans are stored in the storage unit 32. Also, the exploration images converted for each predetermined movement amount are, for example, cumulatively stored since the power of the buried object exploration device 10 is turned on, and are stored in a state where a plurality of exploration images are grouped in units of one scan.

[0049] The buried object presence / absence determination unit 33 determines the presence / absence of the buried object 91 in the wall surface 90 according to whether or not the detected sensor value exceeds a predetermined threshold value (edge determination process). Thereby, based on the output results of the capacitance sensor 13, the electromagnetic induction sensor 14, etc., it is possible to determine the presence / absence of the buried object 91. 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 with the interval therebetween as the buried object 91.

[0050] The detection image conversion processing unit 35 converts the sensor values detected by the capacitance sensor 13, the electromagnetic induction sensor 14, etc. into a detection image indicating the presence or absence of the embedded object 91. More specifically, the detection image conversion processing unit 35 uses the sensor values acquired each time the movement amount along the wall surface 90 of the buried object detection device 10 reaches a predetermined distance, based on the position information of the buried object detection device 10 detected by the position information acquisition unit 31 described above, to generate a detection image.

[0051] The buried object estimation unit 36 estimates the type of the corresponding buried object 91 by comparing 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 dimension for each type of the buried object 91 included in the buried object table (see FIG. 22) stored in the storage unit 32. The input reception unit 37 receives the operation content from the user input to the operation input unit 15 including the power button 15a, the grid display button 15b, the scale switching button 15c, the selection / scroll button 15d, etc. described above.

[0052] The detection image calling unit 38 calls the detection image stored in the storage unit 32 based on, for example, the operation content from the user input via the operation input unit 15, and transmits it to the data transfer unit 39 and the display control unit 40. Note that after the detection image is stored in the storage unit 32, the display control unit 40 may control the display unit 12 so that the detection image is displayed in real time during the scanning of the buried object detection device 10 regardless of the operation content from the user input to the operation input unit 15.

[0053] The data transfer unit 39 transmits the detection image, the detection result of the buried object 91, etc. to an external device, a server, etc. The display control unit 40 causes the detection image (see FIG. 6 etc.) indicating the presence or absence of the buried object 91 generated by the detection image conversion processing unit 35 described above to be displayed on the display screen 12a of the display unit 12. Further, the display control unit 40 causes the detection image, the grid layer and the reference point display layer stored in the storage unit 32, to be superimposed and displayed on the display screen 12a of the display unit 12.

[0054] In the exploration image, as shown in FIG. 6, the buried object 91 is displayed by combining a plurality of exploration images generated from sensor values acquired along the trajectory of the buried object exploration device 10 scanned along the wall surface 90. Also, in the exploration image, as shown in FIG. 6, for example, the position where the buried object 91 is present is displayed in a different color or different gradation, such as black for the position with the buried object 91 and white for the position without the buried object 91.

[0055] The attachment identification unit 41 identifies the types of the attachment units 20a and 20b attached to the main body unit 11. More specifically, the attachment identification unit 41 detects a combination of outputs of different identification terminals for each type of the attachment units 20a and 20b to identify the types of the attachment units 20a and 20b. Note that the method for identifying the attachment units 20a and 20b by the attachment identification unit 41 will be described in detail later.

[0056] <Detachment mechanism 50> As shown in FIG. 8, in the buried object exploration device 10 of the present embodiment, a plurality of attachment units 20a to 20c of different types are attached to the common main body unit 11 via the detachment mechanism 50. Here, for the sake of convenience of explanation, the configuration in which the attachment unit 20a including the electromagnetic induction sensor 14 is attached to the main body unit 11 will be described as an example for the detachment mechanism 50, but the same applies to the other attachment units 20b and 20c.

[0057] As shown in FIG. 9, the main body unit 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 unit 11, and is provided with the operation input unit 15 described above. Also, at the end of the upper case 51 on the connection side with the attachment unit 20a, a locked portion (locking mechanism) 51a to which a locking claw 67a (see FIG. 10) described later is locked is provided.

[0058] The lower case 52 is a housing that covers the lower surface side of the main body 11. It sandwiches the control board 53 between itself and the upper case 51 and is fixed to the upper case 51 by four screws 55b. Inside both side surfaces of the lower case 52, guide ribs (guide mechanisms) 52a are provided, which are formed substantially parallel to the mounting direction of the attachment part 20a. The guide ribs 52a are convex portions formed to protrude inward from both side surfaces of the lower case 52, and engage with guide grooves 64a on the side of the attachment part 20a, which will be described later.

[0059] The control board 53 includes a display part 12, a connector 53a that is electrically connected to the electromagnetic induction type sensor 14 on the side of the attachment part 20a, and a guide hole 53b into which a guide pin 65a on the side of the attachment part 20a, 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 obtains sensor values and the like detected on the side of the attachment part 20a by being connected to the connector 65c of the floating board 65 on the side of the attachment part 20a.

[0060] The guide holes 53b are provided on both sides of the connector 53a and are holes formed substantially parallel to the mounting direction of the attachment part 20a. The guide pins 65a on the side of the attachment part 20a, which will be described later, are inserted into the guide holes 53b. As shown in FIG. 10, the attachment part 20a has a cover 61, a lower housing part 62, a coil 63, an upper housing part 64, a floating board 65, a spring (biasing member) 66, and an operation part 67.

[0061] As shown in FIG. 10, the cover 61 is attached to the upper surface of the upper housing part 64 so as to cover the floating board 65, the spring 66, and the operation part 67, which will be described later, from above. The lower housing part 62 is a base member that forms the lower surface side of the attachment part 20a and has a substantially annular coil housing part 62a, as shown in FIG. 10. The coil 63 is disposed in the coil housing portion 62a of the lower housing portion 62 and generates a magnetic field when an exciting current is supplied. When an embedded object 91 such as metal approaches in a state where such a magnetic field is generated, the impedance of the coil 63 changes due to the eddy current generated in the embedded object 91 by electromagnetic induction, and thus the embedded object 91 can be detected.

[0062] The upper housing portion 64 is a housing that encloses the coil 63 together with the lower housing portion 62, and is joined to the lower housing portion 62 on the lower surface side. Further, a cover 61 is attached to the upper surface side of the upper housing portion 64, and the floating substrate 65, the spring 66, and the operation portion 67 described later are enclosed. As shown in FIG. 10, the upper housing portion 64 has a guide groove (guide mechanism) 64a, a fixing plate 64b, and screw holes 64c.

[0063] The guide groove (guide mechanism) 64a engages with the guide rib 52a of the lower case 52 described above and guides the attachment portion 20a in the mounting direction with respect to the main body portion 11. Further, the guide groove 64a is formed substantially parallel to the mounting direction of the attachment portion 20a with respect to the main body portion 11 on the outside of both side surfaces of the upper housing portion 64. The fixing plate 64b is a plate-like member erected on the upper surface of the upper housing portion 64, and the floating substrate 65 is fixed by two step screws 65b.

[0064] The screw holes 64c are respectively provided near both ends of the fixing plate 64b, and the step screws 65b are screwed therein. As shown in FIG. 10, the floating substrate 65 has a guide pin 65a, a step screw 65b, and a connector 65c, and is connected to the connector 53a on the main body portion 11 side in a state where the attachment portion 20a is attached to the main body portion 11.

[0065] The guide pin 65a is a rod-shaped member provided so as to protrude from the surface of the floating substrate 65 on the mounting side to the main body portion 11, and is arranged so as to reach the main body portion 11 side prior to the connector 65c when the attachment portion 20a is mounted to the main body portion 11. Thus, when the attachment portion 20a is attached to the main body portion 11, the connector 65c of the floating substrate 65 is connected to the connector 53a on the main body portion 11 side in an aligned state by inserting the tip of the guide pin 65a into the guide hole 53b on the main body portion 11 side.

[0066] The step screw 65b is attached to the surface of the floating substrate 65 on the connection side with the main body portion 11, and restricts the movement range of the floating substrate 65. As a result, the floating substrate 65 is attached in a state where it can move to some extent within the range of freedom set by the step screw 65b, so that the attachment portion 20a can be easily connected to the main body portion 11.

[0067] The connector 65c is connected to the connector 53a on the main body portion 11 side when the attachment portion 20a is attached to the main body portion 11. As a result, data such as sensor values such as impedance changes of the coil 63 are transmitted to the main body portion 11 side. As shown in FIG. 10, the spring 66 is installed together with the operation portion 67 in the space formed by the cover 61 and the upper housing portion 64, and applies a biasing force that biases the operation portion 67 upward in the figure.

[0068] The operation portion 67 is a member that forms a locking mechanism for holding the state where the attachment portion 20a is attached to the main body portion 11, and has a locking claw (locking mechanism) 67a and a tapered portion 67b as shown in FIG. 10. As shown in FIG. 10, the locking claw 67a is provided at the upper end of the operation portion 67. 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) when the attachment portion 20a shown in FIG. 11(a) is attached to the main body portion 11. As a result, the attachment portion 20a cannot move in the direction away from the main body portion 11, so that the attachment portion 20a can be fixed to the main body portion 11.

[0069] Here, in a state where the locking claw 67a shown in FIG. 11(b) is locked to the locked portion 51a, the operation portion 67 is biased upward by the spring 66. Therefore, when detaching the attachment portion 20a from the main body portion 11, by operating the operation portion 67 downward, the locked state between the locking claw 67a and the locked portion 51a is released. As shown in FIG. 11(c), the tapered portion 67b is an inclined surface that slopes downward toward the main body portion 11 and is provided at the upper part of the operation portion 67.

[0070] Here, when attaching the attachment portion 20a to the main body portion 11, as the attachment portion 20a is brought closer to the main body portion 11 in the attachment direction, it abuts against the locked portion 51a of the upper case 51 at the lower part of the inclined surface of the tapered portion 67b. When the attachment portion 20a is further brought closer to the main body portion 11 from there, the locked portion 51a presses down the operation portion 67 against the biasing force of the spring 66 while abutting along the inclined surface of the tapered portion 67b. Then, when the attachment portion 20a is attached to the main body portion 11, the locked portion 51a completely ascends the inclined surface of the tapered portion 67b, the operation portion 67 moves upward by the biasing force of the spring 66, and the locking claw 67a is in a locked state. Thereby, the attachment portion 20a can form a locked state fixed to the main body portion 11.

[0071] In the buried object detection device 10 of the present embodiment, as described above, a detaching and attaching mechanism 50 is provided between the main body portion 11 and the attachment portion 20a that is detachably attached to the main body portion 11. The detaching and attaching mechanism 50 includes a floating substrate 65 including a guide pin 65a formed along the attachment direction of the attachment portion 20a to the main body portion 11, and a guide hole 53b provided in the main body portion 11 into which the guide pin 65a is inserted.

[0072] In this way, 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, the attachment part 20a is positioned with respect to the main body part 11. Therefore, in the state where the attachment part 20a shown in Fig. 12(a) is attached to the main body part 11, as shown in Fig. 12(b), 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.

[0073] At this time, since the floating substrate 65 is attached in a state where it can move within the range restricted by the set 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 part 20a to the connection position where the electromagnetic induction type sensor 14 included in the attachment part 20a and the main body part 11 are connected to each other.

[0074] The guide mechanism includes guide ribs 52a provided inside both side surfaces of the lower case 52 on the main body part 11 side, and guide grooves 64a provided outside both side surfaces of the upper housing part 64 on the attachment part 20a side and engaged with the guide ribs 52a. Thereby, the attachment part 20a is guided by the engagement with the guide ribs 52a and the guide grooves 64a to the position where the electromagnetic induction type sensor 14 on the attachment part 20a side and the main body part 11 are connected to each other, so that the attachment part 20a can be attached to the main body part 11 at a predetermined position.

[0075] Also, the guide ribs 52a and the guide grooves 64a are provided substantially parallel to the mounting direction of the attachment part 20a with respect to the main body part 11. Thereby, 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.

[0076] <Identification Processing of Attachment Parts 20a and 20b> In the buried object detection device 10 of the present embodiment, as described above, attachment parts 20a to 20c including a plurality of types of detection parts (sensors) according to the type and usage of the buried object 91 are used in a state where they are detachably attached to the common main body part 11. At this time, the attachment identification part 41 provided on the main body part 11 side automatically identifies the types of the attached attachment parts 20a to 20c. Here, for example, regarding the identification processing in the attachment identification part 41 when the attachment part 20a including the electromagnetic induction sensor 14 and the attachment part 20b including the capacitance sensor 13 are respectively attached to the main body part 11, it is as follows when described with reference to FIGS. 13 to 15.

[0077] When the attachment part 20a including the electromagnetic induction sensor 14 is attached to the main body part 11, as shown in FIG. 13, the attachment identification part 41 provided on the main body part 11 side acquires signals obtained from the identification terminals 21a, 21b, 21c included in the attachment part 20a. In the example shown in FIG. 13, at the input ports 1, 2, 3 on the main body part 11 side, signals of High / High / Low are detected in the order of the identification terminals 21a, 21b, 21c.

[0078] 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 FIG. 14, the attachment identification part 41 provided on the main body part 11 side acquires signals obtained from the identification terminals 22a, 22b, 22c included in the attachment part 20b. In the example shown in FIG. 14, at the input ports 1, 2, 3 on the main body part 11 side, signals of Low / High / High are detected in the order of the identification terminals 22a, 22b, 22c.

[0079] Accordingly, when the attachment identification unit 41 stores a table or the like indicating which output of which identification terminal corresponds to which attachment unit 20a, 20b in advance, the attachment identification unit 41 can automatically recognize the types of the attachment units 20a, 20b attached to the main body unit 11 by checking which attachment unit 20a, 20b the output of the identified identification terminal corresponds to.

[0080] Here, the method for identifying the attachment units 20a, 20b in the buried object exploration device 10 of the present embodiment is executed according to the flowchart of FIG. 15. That is, in step S1, it is determined whether any one of the attachment units 20a, 20b is attached to the main body unit 11. Here, when it is detected that any one of the attachment units 20a, 20b is attached to the main body unit 11, the process proceeds to step S2.

[0081] Next, in step S2, in the state where the attachment units 20a, 20b are attached to the main body unit 11, the attachment identification unit 41 on the main body unit 11 side acquires the input states at the input ports 1, 2, and 3. Next, in step S3, a determination of the connection state is performed. Specifically, the attachment identification unit 41 detects the output from the above-described identification terminal and determines whether it is High / High / Low, Low / High / High, or otherwise. Here, when the detected signal is High / High / Low, the process proceeds to S4; when it is Low / High / High, the process proceeds to S5; and when it is otherwise, the process proceeds to S6.

[0082] Next, in step S4, since it is determined in step S3 that a High / High / Low signal is detected, it is determined that the attachment unit corresponding thereto is the attachment unit 20a including the electromagnetic induction sensor 14, and the process ends. Next, in step S5, since it is determined in step S3 that a Low / High / High signal has been detected, the process ends with a determination that the attachment unit corresponding thereto is the attachment unit 20b including the capacitance sensor 13.

[0083] 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, the process ends with a determination that the attachment unit includes an undefined sensor. In the buried object exploration device 10 of the present embodiment, as described above, the attachment identification unit 41 on the main body unit 11 side detects combinations of outputs from different identification terminals for each type of the attachment units 20a and 20b, and identifies the types of the attachment units 20a and 20b.

[0084] Thereby, the types of the attachment units 20a and 20b attached to the main body unit 11 can be identified, for example, by the difference in the combinations of the outputs of the identification terminals that output High / Low signals.

[0085] <From generation to storage of exploration image> In the buried object exploration device 10 of the present embodiment, with the above configuration, based on the change in the sensor values obtained as a result of scanning along the wall surface 90, an exploration image indicating the presence or absence of the buried object 91 in the wall surface 90 is generated. Here, the exploration image generation process will be described as follows using the flowchart of FIG. 16. That is, in step S11, the sensor value acquisition unit 30 acquires the sensor values detected by the capacitance sensor 13 or the electromagnetic induction sensor 14 attached to the main body unit 11. Next, in step S12, the position information acquisition unit 31 acquires the position information of the buried object exploration device 10 detected by the optical sensor 16.

[0086] Next, in step S13, it is determined whether or not the buried object detection device 10 has moved along the wall surface 90 from the position information of the buried object detection device 10 acquired by the position information acquisition unit 31. Here, if it is determined that the device has moved, the process proceeds to step S14. If it is determined that the device has not moved, step S13 is repeated until it is determined that the device has moved. Next, in step S14, since it has been determined in step S13 that the buried object detection device 10 has moved, the coordinates (relative coordinates) indicating the current position of the buried object detection device 10 are calculated and acquired.

[0087] 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. Thereby, for example, every 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 movement amount, the sensor value acquired by the sensor value acquisition unit 30 can be saved.

[0088] Next, in step S16, the buried object presence / absence determination unit 33 performs a process of determining the presence or absence of the buried object 91 in the scanning range based on the acquired sensor value. Next, in step S17, the buried object presence / absence determination unit 33 determines whether or not there is a buried object 91. If there is, the process proceeds to step S18. If not, the process proceeds to step S19.

[0089] Next, in step S18, since it has been determined in step S17 that there is a buried object 91, 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 detection 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.

[0090] Next, in step S20, the exploration image generated in step S19 is displayed on the display unit 12 and saved in the storage unit 32. In this embodiment, through the above-described steps, a detection 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 storage unit 32.

[0091] <From scanning start to image storage> Next, detailed steps from the start of scanning along the wall surface 90 to the storage process of the detection image in the buried object detection device 10 of this embodiment will be described below with reference to the flowcharts of FIGS. 17 to 21.

[0092] (a) Coordinate acquisition process The coordinate acquisition process in S14 of FIG. 16 implemented in the buried object detection device 10 of this embodiment will be described in detail below with reference to the flowchart of FIG. 17. In this embodiment, when starting the scanning along the wall surface 90 using the buried object detection device 10, as shown in FIG. 17, in step S21, the position information detected by the optical sensor 16 is acquired as the coordinate change amount (X, Y). Next, in step S22, the coordinate change amount acquired in step S21 is added to the cumulative coordinates. Next, in step S23, the cumulative coordinates obtained in step S22 are set as the current position of the buried object detection device 10.

[0093] (b) Determination process for presence or absence of buried object The determination process for the presence or absence of the buried object 91 in S17 of FIG. 16 implemented in the buried object detection device 10 of this embodiment will be described in detail below with reference to the flowchart of FIG. 18.

[0094] First, in step S31, an offset process is performed by obtaining the difference from the reference value (minimum value) for each of the capacitance sensor 13 and the electromagnetic induction sensor 14. Next, in step S32, the smaller data of the center - left and center - right of the difference data obtained in step S31 is calculated as the determination value. Next, in step S33, it is determined whether or not the determination value is equal to or greater than a predetermined threshold value. Here, if the determination value is equal to or greater than the predetermined threshold value, the process proceeds to step S34, and if it is less than the predetermined threshold value, the process proceeds to step S35.

[0095] 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 there is an embedded object 91 in the 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 embedded object 91 in the scanning area, and the process ends.

[0096] (c) Embedded object estimation process The estimation process of the embedded object 91 in S18 of FIG. 16 implemented in the embedded object exploration device 10 of the present embodiment will be described in detail below using the flowchart of FIG. 19. First, in step S41, the continuous width (length) in the scanning direction of the embedded object 91 before and after the current position of the embedded object exploration device 10 is acquired from the acquisition data storage table shown in FIG. 23. Here, as shown in FIG. 23, the acquisition data storage table includes acquisition time, coordinates (X, Y), detection results of the capacitance sensor, results of embedded object determination, types of embedded objects, and dimension information.

[0097] Note that the type of the embedded object included in the acquisition data storage table shown in FIG. 23 is obtained as a result of estimating the type of the embedded object 91 by referring to the width dimension among the name, width, and thickness information for each type of the embedded object 91 shown in FIG. 22 and comparing the estimated value of the dimension of the detected embedded object. Next, in the processes of steps S42 to S46, the embedded object table shown in FIG. 22 is referred to (S43), and materials (such as a base, a through column, a pipe column, a stud, a beam, a crossbar, a field edge, a body edge, etc.) that match the continuous width (length) in the scanning direction of the embedded object 91 acquired in step S41 are repeatedly confirmed for the number of them (S44).

[0098] Then, in step S44, if the width dimension substantially matches any of the embedded objects 91 included in the embedded object table, the process proceeds to step S46 to estimate the type of the embedded object 91. Then, the embedded object table is returned 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 embedded objects 91 included in the embedded object table, the processes of steps S42 to S46 are repeated until all the types in the embedded object table are confirmed, and the process ends.

[0099] (d) Exploration Image Conversion Process Regarding the exploration image conversion process in S19 of FIG. 16 implemented in the embedded object exploration device 10 of the present embodiment, it will be described in detail below with reference to the flowchart of FIG. 20. Here, with reference to the flowchart shown in FIG. 20, a process of always expanding the drawing range in the vertical direction (vertical direction) regardless of the moving direction of the embedded object exploration device 10 will be described.

[0100] In step S51, the determination value calculated in S32 of the presence / absence determination process of the embedded object shown in FIG. 18 is converted into 255 gradations of brightness. Next, in step S52, in the display buffer area, the position coordinates included in the acquisition data storage table shown in FIG. 23 are drawn with the converted brightness, and an exploration image is generated.

[0101] Note that, as shown in FIG. 24, in the display buffer area, the coordinates (X, Y) and the corresponding R·G·B values are stored respectively. Next, in step S53, it is determined whether the dimension of the embedded object 91 can be determined. Here, if the determination can be made, the process proceeds to step S54, and if the determination cannot be made, the process ends. Next, in step S54, the embedded object 91 whose dimension can be determined and its dimension (scanning direction) are stored in the acquisition data storage table shown in FIG. 23, and the process ends.

[0102] (e) Exploration Image Storage Process Regarding the storage process of the exploration image in S20 of FIG. 16 implemented in the buried object exploration device 10 of this embodiment, it will be described in detail below using the flowchart of FIG. 21.

[0103] First, in step S61, it is determined whether an image clear operation such as pressing the exploration start button by the user is received. Here, if an image clear operation is received, the process proceeds to step S62, and if not, the process ends as it is. Next, in step S62, the exploration image in the display buffer area shown in FIG. 24 is registered in the exploration image storage table shown in FIG. 25 before the screen is cleared.

[0104] Here, as shown in FIG. 25, in the exploration image storage table, the date and time when the exploration image was generated are stored in a state associated with the image data ID assigned to each exploration image. Note that the exploration images stored in the exploration image storage table are stored as image data corresponding to one operation. Next, in step S63, the display buffer area is cleared and the process ends.

[0105] [Other Embodiments] As described above, one embodiment of the present invention has been described, but the present invention is not limited to the above embodiment, and various modifications are possible without departing from the gist of the invention.

[0106] (A) In the above embodiment, an example of implementing the present invention as a buried object exploration device and an identification method has been described. However, 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 identification method of the buried object exploration device described above. This identification program is stored in the memory (storage unit) installed in the buried object detection device, and the CPU reads the identification program stored in the memory and causes the hardware to execute each step. More specifically, by the CPU reading the identification program and executing the above-described attachment detection step and identification step, the same effects as described above can be obtained. Further, the present invention may be realized as a recording medium storing the identification program of the buried object detection device.

[0107] (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 constituted 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, a configuration may be adopted in which an attachment part is adsorbed and held to the main body part by using an adsorption part such as a magnet.

[0108] (C) In the above embodiment, as an example of the object detected by the buried object detection device 10, a buried object detection device that detects buried objects such as wood and metal has been described. However, the present invention is not limited to this. For example, as another detection object, a buried object detection device to which an attachment part capable of detecting both heat and wood / metal is attached may be used.

[0109] (D) In the above embodiment, an example has been described in which the types of the attachment parts 20a and 20b attached to the main body part 11 are identified by detecting the output signals of the identification terminals. However, the present invention is not limited to this.

[0110] As a method for identifying the attachment unit attached to the main body unit, instead of detecting the output of the identification terminal, for example, a configuration may be adopted in which an RFID (Radio Frequency Identification) tag provided on the attachment unit side and a communication unit on the main body unit side transmit and receive data via wireless communication to identify the type of the attachment unit.

[0111] (E) In the above embodiment, an example has been described in which three types of attachment units with different detection methods are identified: an attachment unit 20a including an electromagnetic induction sensor 14, an attachment unit 20b including a capacitance sensor 13, and other undefined attachment units. However, the present invention is not limited to this. For example, a configuration may be adopted in which two types or four or more types of attachment units can be identified.

[0112] (F) In the above embodiment, an example has been described in which a guide mechanism is configured by combining a guide rib 52a provided on the main body unit 11 side and a guide groove 64a provided on the attachment unit 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, respectively. That is, the guide rib may be provided on the attachment unit side and the guide groove may be provided on the main body unit side.

[0113] (G) In the above embodiment, an example has been described in which a floating substrate 65 whose movement range is restricted by a stud bolt 65b is provided on the attachment unit 20a side. However, the present invention is not limited to this. For example, instead of the floating substrate, a general substrate may be provided.

Industrial Applicability

[0114] The buried object detection device of the present invention has the effect that, for example, even when the main body part is commonly used when the types and detection sensitivities of buried objects to be detected are different, the type of the attachment part attached to the main body part can be identified. Therefore, it is widely applicable to buried object detection devices for detecting various buried objects.

Explanation of Signs

[0115] 10 Buried object detection device 11 Main body part 12 Display part 12a Display screen 13 Capacitance sensor (first detection part) 13a Sensor value acquisition part 13b Identification terminal 14 Electromagnetic induction type sensor (second detection part) 14a Sensor value acquisition part 14b Identification terminal 15 Operation input part 15a Power button 15b Grid display button 15c Scale switching button 15d Selection / scroll button 16 Optical sensor 20a Attachment part 20b Attachment part 20c Attachment part 21a~21c Identification terminals 22a~22c Identification terminals 30 Sensor value acquisition part 31 Position information acquisition part 32 Storage part 33 Buried object presence / absence determination part 34 Dimension calculation processing part 35 Exploration image conversion processing part 36 Buried object estimation part 37 Input reception part 38 Exploration image calling part 39 Data transfer part 40 Display control part 41 Attachment identification part (identification part) 50 Detaching mechanism 51 Upper case 51a Locked part (locking mechanism) 52 Lower case 52a Guide rib (guide mechanism) 53 Control board 53a Connector 53b Guide hole 55a, 55b Screws 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 Step screw 65c Connector 66 Spring (biasing member) 67 Operating part 67a Locking claw (locking mechanism) 67b Tapered part 90 Wall surface (object) 91 Embedded object 91a Pipe column 91b Intermediate column

Claims

1. An embedded object detection device for detecting an embedded object contained in an object, comprising: a main body part; an attachment part that is detachably attached to the main body part and has a detection part for detecting the embedded object; a detection image conversion processing part that converts a detection result in the detection part into a detection image; an identification part that identifies the type of the attachment part attached to the main body part; and is provided with: The identification part detects a combination of different identification terminals for each type of the attachment part and identifies the type of the attachment part. Embedded object detection device.

2. The type of the attachment part includes at least one of a difference in a method of detecting the embedded object, a type of the detected embedded object, and a difference in detection sensitivity. The embedded object detection device according to claim 1.

3. The attachment part includes a first detection part that detects the embedded object by a capacitance method and a second detection part that detects the embedded object by an electromagnetic induction method. The embedded object detection device according to claim 2.

4. The attachment part includes a third detection part that detects wood as the embedded object and a fourth detection part that detects metal. The embedded object detection device according to claim 2 or 3.

5. The embedded object detection device further includes a display part that displays the detection image converted by the detection image conversion processing part. The embedded object detection device according to any one of claims 1 to 4.

6. The embedded object detection device further includes a detaching and attaching mechanism by which the attachment part is detachably attached to the main body part. The embedded object detection device according to any one of claims 1 to 5. **Claim 7**: The detachable mechanism includes a floating substrate including a guide pin formed along the attachment direction of the attachment portion to the main body portion, and a guide hole provided in the main body portion into which the guide pin is inserted. The buried object detection device according to claim 6. **Claim 8**: The detachable mechanism includes a guide mechanism that guides the attachment portion to a connection position where the detection portion of the attachment portion and the main body portion are connected to each other. The buried object detection device according to claim 6 or 7. **Claim 9**: The guide mechanism includes a guide rib provided on the attachment portion side or the main body portion side, and a guide groove provided on the main body portion side or the attachment portion side and engaged with the guide rib. The buried object detection device according to claim 8. **Claim 10**: The guide rib and the guide groove are provided substantially parallel to the attachment direction of the attachment portion to the main body portion. The buried object detection device according to claim 9. **Claim 11**: The detachable mechanism includes a locking mechanism that holds the connection between the attachment portion and the main body portion so as not to be released at a connection position where the detection portion of the attachment portion and the main body portion are connected to each other. The buried object detection device according to any one of claims 6 to 10. **Claim 12**: The locking mechanism includes a locking claw provided on the main body portion or the attachment portion at the connection position, and a locked portion provided on the attachment portion or the main body portion and locked by the locking claw. The buried object detection device according to claim 11. **Claim 13**: The locking mechanism further includes a biasing member that biases the locking claw in a direction intersecting the attachment direction of the attachment portion to the main body portion, and an operating portion that is operated in a direction opposite to the biasing direction of the biasing member when removing the attachment portion. The buried object detection device according to claim 12.

14. The attachment / detachment mechanism includes a suction portion that suctions the attachment portion to the main body portion at a connection position where the detection portion included in the attachment portion and the main body portion are connected to each other. The buried object exploration device according to any one of Claims 6 to 13.

15. The attachment / detachment mechanism is attached to a surface on the connection side of the floating substrate with the main body portion, and further includes a machine screw that restricts the movement range of the floating substrate. The buried object exploration device according to Claim 7.

16. A method for identifying the type of an attachment portion attached to a main body portion in a buried object exploration device including an attachment portion having a detection portion for detecting a buried object contained in an object and a main body portion to which the attachment portion is detachably attached, comprising: a mounting detection step of detecting that the attachment portion is attached to the main body portion; an identification step of, when it is detected in the mounting detection step that the attachment portion is attached to the main body portion, detecting a combination of different identification terminals for each type of the attachment portion to identify the type of the attachment portion; An identification method for a buried object exploration device including the above.

17. A program for identifying the type of an attachment portion attached to a main body portion in a buried object exploration device including an attachment portion having a detection portion for detecting a buried object contained in an object and a main body portion to which the attachment portion is detachably attached, comprising: a mounting detection step of detecting that the attachment portion is attached to the main body portion; an identification step of, when it is detected in the mounting detection step that the attachment portion is attached to the main body portion, detecting a combination of different identification terminals for each type of the attachment portion to identify the type of the attachment portion; An identification program that causes a computer to execute a method for identifying a buried object detection device equipped with

Images