JP7344604B1 - geological survey equipment - Google Patents

Abstract

The present invention provides a geological survey device that can avoid or reduce damage to buried objects. [Solution] A geological survey device includes a penetration part that can penetrate the ground, a measurement part that measures the penetration status of the penetration part, a warning part that can issue a warning, and a control unit that is connected to the measurement part and the warning part. It has a section. The control unit causes the warning unit to issue a warning based on the control index. The control index is a measured value measured by the measuring section or a value calculated from the measured value by the control section. [Selection diagram] Figure 1

Description

The present invention relates to a geological survey device.

Various geological survey devices, such as the device described in Patent Document 1, have been disclosed as devices for examining the hardness of the ground in geological surveys.

Patent No. 6967617

Devices that perform geological surveys by penetrating the ground with penetrating parts such as rods have the possibility that the penetrating parts unexpectedly damage buried objects such as pipes buried underground during geological surveys.

An object of the present invention is to provide a geological survey device that can avoid or reduce damage to buried objects.

The geological survey device includes a penetration part that can penetrate the ground, a measurement part that measures the penetration status of the penetration part, a warning part that can issue a warning, and a control part that is connected to the measurement part and the warning part. ing. The control unit causes the warning unit to issue a warning based on the control index. The control index is a measured value measured by the measuring section or a value calculated from the measured value by the control section.

In the geological survey device, the warning section is capable of issuing a warning in a plurality of different modes, and the control section changes the mode of warning of the warning section depending on the magnitude of the value of the control index. Good too.

In the geological survey device, the warning section may include a plurality of lamps of different colors, and the control section may change the mode of warning by changing the lamp to be lit or by lighting the plurality of lamps.

In the geological survey device, the control unit determines whether there is an abnormality in the measurement of the measurement unit based on the control index, and if it is determined that there is an abnormality, it causes the warning unit to issue a warning or the output unit that is further provided It is also possible to output information that indicates an abnormality in the measurement of the measurement unit.

The geological survey device includes a power measurement unit that is connected to a control unit and measures the status of power supplied to the measurement unit, and the control unit determines whether or not there is an abnormality in the measurement of the measurement unit based on the measured value of the power measurement unit. If it is determined that there is an abnormality, the warning unit may issue a warning, or the abnormality in the measurement of the measurement unit may be output to an output unit provided.

The geological survey device may include a first measuring unit that measures the intrusive force of the intrusive part, and the control index may be the intrusive force F(t) of the intrusive part, where time is expressed as t. .

The geological survey device includes a second measurement unit in which the measurement unit measures the velocity or displacement of the penetration part in the direction of penetration of the penetration part into the ground, and the control index is measured when the time is expressed as t or the above-mentioned. The velocity V(t) of the penetration portion may be calculated from the displacement of the penetration portion by the control unit.

The geological survey device includes a first measurement section that measures the penetration force of the penetration section, and a second measurement section that measures the velocity or displacement of the penetration section in the longitudinal direction of the penetration section, and the measurement section has a control index. , which is calculated by the control unit, and where time is expressed as t, the value F(t)/V(t) is obtained by dividing the penetration force F(t) of the penetration part by the velocity V(t) of the penetration part. It may be.

The geological survey device includes a measurement unit that includes a first measurement unit that measures the penetration force of the penetration part, and a second measurement unit that measures the displacement of the penetration part in the longitudinal direction of the penetration part, and the control unit: The presence or absence of an underground cavity may be determined based on the penetration force and displacement of the penetration part.

The geological survey device can avoid or reduce damage to buried objects during geological survey.

BRIEF DESCRIPTION OF THE DRAWINGS It is a side view which shows the geological survey apparatus of embodiment of this invention. 1 is a block diagram showing the configuration of a geological survey apparatus according to an embodiment of the present invention.

Embodiments of the present invention will be described below with reference to the drawings. As shown in FIG. 1, the geological survey device includes a main body 10, a warning section 70, and a control section 80.
In the following description, it is assumed that the longitudinal directions of the leader 14 and the penetration portion 20 of the main body 10, which will be described later, are parallel to the vertical direction.

The main body 10 is a self-propelled device, as shown in FIG. It includes a section 17, a rotation section 18, a drive control section 19, a penetration section 20, and a measurement section.

The base portion 11 is a portion in which each component of the main body 10 is provided. The base portion 11 is provided with a seat 11a on which an operator rides. The base portion 11 is also provided with an operating section 11b such as a lever for an operator to perform various operations on the geological survey device. The traveling section 12 is for making the geological survey device self-propelled. In this embodiment, the traveling section 12 is a crawler and is provided below the base section 11. The traveling section 12 is driven by a power section 13 such as an engine provided on the base section 11. Note that the traveling section 12 may be a wheel or the like.

The leader 14 is for guiding the movement of a moving section main body 16a, which will be described later. In this embodiment, the leader 14 is columnar and is connected to the base portion 11 so as to be tiltable about the left-right direction. The leader 14 is tilted by a tilting device 15 provided on the base portion 11. In the present embodiment, the tilting device 15 is constituted by a hydraulic cylinder, the base side of which is supported by the base portion 11 so as to be tiltable about the left and right directions, and the tip end side of the tilting device 15 is supported by the leader 14 so that it can be tilted about the right and left directions. is connected to. The tilting of the tilting device 15 itself is driven by the power unit 13. The leader 14 is tilted with the left-right direction as an axis due to the expansion and contraction and tilting of the tilting device 15.

The moving section 16 is for moving a penetration section 20, which will be described later, in its longitudinal direction. In this embodiment, the moving section 16 includes a moving section main body 16a and a moving drive section 16b.

The moving unit main body 16a is provided in the leader 14 so as to be movable in the longitudinal direction of the leader 14. The moving unit main body 16a moves in the longitudinal direction of the leader 14 by driving the moving drive unit 16b. Moreover, the moving part main body 16a can also be moved in the longitudinal direction of the leader 14 by the weight of the moving part main body 16a, a vibrating part 17, a rotating part 18, and a penetrating part 20, which will be described later, without being driven by the moving driving part 16b. .

The vibrating portion 17 is for vibrating the penetrating portion 20 in its longitudinal direction. In this embodiment, a vibrohammer is used as the vibrating section 17, and is provided on the front surface of the moving section main body 16a. The vibrating part 17 vibrates the penetrating part 20 in the longitudinal direction by vibrating itself in the longitudinal direction of the penetrating part 20 (leader 14).

The rotating portion 18 is for rotating the penetrating portion 20 around its axis (longitudinal direction).

The vibrating section 17, the rotating section 18, and the penetrating section 20 move in the longitudinal direction of the leader 14, in other words, in the longitudinal direction of the penetrating section 20, due to the movement of the moving section main body 16a.

The drive control section 19 is for controlling the driving of the power section 13, the tilting device 15, the moving drive section 16b, the vibration section 17, the rotating section 18, etc. based on the operation of the operation section 11b. The drive control section 19 includes a CPU (Central Processing Unit), and a memory including a RAM (Random Access Memory) and a ROM (Read Only Memory). The drive control section 19 is provided within the base section 11.

The penetrating portion 20 is capable of penetrating into the ground. In this embodiment, the penetrating portion 20 includes a main shaft 22, a rod 30, and a cone 40, as shown in FIG.

The main shaft 22 is made of metal and has a cylindrical shape, and is passed through the vibrating section 17 and the rotating section 18, and its longitudinal direction is parallel to the longitudinal direction of the leader 14. The main shaft 22 is rotatably supported by the vibrating section 17 and the rotating section 18 about the main shaft. The main shaft 22 can be connected to and separated from a rod 30 (rod member 32) and a first measuring section 50, which will be described later.
Note that when the rod 30 (rod member 32) is directly supported by the vibrating section 17 so as to be rotatable about its axis, the main shaft 22 is not necessary.

The rod 30 is columnar, and in this embodiment is made up of a plurality of rod members 32 connected in the longitudinal direction. Each rod member 32 is made of metal and has a cylindrical shape, and can be connected to and separated from other rod members 32 at its longitudinal end. The rod 30 is coaxially connected to the main shaft 22 via a first measuring section 50, which will be described later, with its longitudinal direction parallel to the longitudinal direction of the leader 14. Rod members 32 can be added to the rod 30 as appropriate depending on the depth at which the penetration portion 20 penetrates into the ground.

The cone 40 is the most distal portion when the penetrating portion 20 penetrates into the ground, and is connected to the distal end of the rod 30 . The cone 40 is a columnar member made of metal, and has a conical tip. The cone 40 can be connected to and separated from the rod 30 (rod member 32). Note that the tip portion of the penetrating portion 20 may be other than the cone 40, such as a sampler.

The penetrating portion 20 moves in the longitudinal direction of the penetrating portion 20 as the moving portion 16 moves. Further, the penetrating portion 20 is vibrated in the longitudinal direction of the penetrating portion 20 by the vibrating portion 17 . Further, the penetrating portion 20 is rotated around the axis (longitudinal direction) of the penetrating portion 20 by the rotating portion 18 .

The measurement unit measures the penetration state of the penetration part 20 (into the ground). Examples of the penetration state of the penetration portion 20 include the penetration force, displacement, and speed of the penetration portion. In this embodiment, the measurement section includes a first measurement section 50 and a second measurement section 60.

The first measurement section 50 measures the penetration force (hardness of the ground) of the penetration section 20 penetrating into the ground, and is provided in the penetration section 20 . In this embodiment, the first measuring section 50 includes a case 52, a penetration force sensor 58, an amplifier 110, and an AD converter 112, as shown in FIG. The case 52 can be connected to and separated from the main shaft 22 and the rod member 32. The penetration force sensor 58 measures the penetration force (hardness of the ground) in the penetration direction (longitudinal direction) of the penetration part 20 penetrating into the ground, and is provided in the case 52 . A load cell is used as the penetration force sensor 58. The penetration force sensor 58 is connected to the control section 80 via an amplifier 110 and an AD converter 112 by a cable 59. The output signal of the penetration force sensor 58 is passed through the amplifier 110, digitized by the AD converter 112, and output to the control section 80. The first measuring section 50 is provided at a position of the penetrating section 20 that does not penetrate into the ground. In this embodiment, the first measuring section 50 (case 52) is connected to the main shaft 22 and the rod 30 (rod member 32) between them.

The second measurement unit 60 measures the displacement or speed of the penetration part 20 in the penetration direction (longitudinal direction) of the penetration part 20. In this embodiment, the second measurement unit 60 includes a displacement measurement sensor 62 that measures the displacement of the penetration part 20 in the penetration direction (longitudinal direction) and a pulse counter 120, as shown in FIG. As the displacement measurement sensor 62, a wire-type displacement sensor is used which measures the displacement of the penetration part 20 using an encoder in response to pulling out and pulling back of the wire 62b with respect to the displacement measurement sensor main body 62a. In the displacement measurement sensor 62, a displacement measurement sensor main body 62a is attached to the leader 14 through the attachment member 14a above the vibrating part 17, and the wire 62b is arranged to be substantially parallel to the longitudinal direction of the penetration part 20. The tip thereof is attached to the vibrating section 17. The displacement measurement sensor 62 is connected to the control section 80 via a pulse counter 120 by a cable 69. The pulse counter 120 counts the number of pulses of the pulse signal output from the displacement measurement sensor 62 and outputs the counted number of pulses to the control unit 80 in digital form.

Although the first measuring section 50 and the second measuring section 60 may be supplied with electric power in any manner, in this embodiment, the penetrating force sensor 58 of the first measuring section 50 is supplied with electric power from the amplifier 110. The displacement measurement sensor 62 of the second measurement unit 60 receives power from the pulse counter 120 .

Note that the main body 10 described above may be of a type other than the above-mentioned self-propelled type, as long as it includes at least the penetration part 20 and the measurement part. Further, regarding the penetration of the penetration part 20 into the ground, the geological survey device may penetrate the penetration part 20 statically into the ground instead of using vibration by the vibrating part 17, and the geological survey device may penetrate the penetration part 20 into the ground statically. Any form or mechanism may be used for penetrating.

The warning unit 70 issues a warning. In this embodiment, the warning unit 70 includes a plurality of (four) lamps 71, 72, 73, and 74 of different colors. Each lamp includes a translucent cover and a light emitter that emits light. Each lamp is stacked vertically and has a different cover or light emitter color. Here, each lamp has a different cover color, and the higher the lamp, the more attention is drawn to the color. Specifically, the lamps are, from bottom to top, a blue lamp 71, a green lamp 72, a yellow lamp 73, and a red lamp 74. The red lamp 74 is the lamp that calls for the most attention. The warning section 70 (each lamp) is connected to the control section 80 by wire or wirelessly. The warning unit 70 may further include a buzzer 76 that generates a warning sound.

The control unit 80 controls the warning unit 70, determines an abnormality (failure) in the measurements of the first measuring unit 50 and the second measuring unit 60, and determines the presence or absence of an underground cavity based on control indicators and the like. belongs to. The control index is a measured value (information) measured by the measuring section or a value calculated from the measured value by the control section 80. The measurement value is a measurement signal measured by the measurement section or a value obtained by converting this into a physical quantity, and includes, for example, the penetration force, displacement, and speed of the penetration section 20. Note that in the following description, the phrase "based on ○○" may include a value calculated using ○○.

The control section 80 includes a CPU (Central Processing Unit), a storage section, and a communication IF (Interface), and these components are connected by a bus. The CPU executes a program for realizing the functional configuration described later. The storage unit stores information (data), programs, and the like. The storage unit includes a ROM (Read Only Memory), a RAM (Random Access Memory), a hard disk, and the like. The communication IF is an interface for communicating with other devices. The control unit 80 includes a power source for supplying power to each component of the control unit 80. The power source may be any type of power source as long as it performs such a function, but in this embodiment, it is a rechargeable battery. The control unit 80 is, for example, a smartphone, a tablet terminal, a personal computer, or the like. Note that the control section 80 may be provided in the main body 10, and for example, the drive control section 19 may also serve as the control section 80.

As shown in FIG. 2, the control unit 80 includes an acquisition unit 81, a calculation unit 82, a warning control unit 83, a cavity determination unit 84, and an abnormality determination unit 85 as functional configurations. The functions of each of these functional configurations are realized by the CPU executing a program corresponding to each functional configuration stored in the storage unit.

The acquisition unit 81 acquires the outputs of the first measurement unit 50 and the second measurement unit 60.

The calculation unit 82 calculates a control index for controlling the warning unit 70 and the like. In the present embodiment, when time is t, the calculation unit 82 calculates the penetration force F(t) of the penetration part 20 against the ground from the output of the first measurement part 50, and calculates the penetration force F(t) of the penetration part 20 from the output of the second measurement part 60. 20 displacement D(t) is calculated. Further, the calculating unit 82 calculates the amount of change (change width) ΔD(t) in the displacement of the penetrating portion 20 from the displacement of the penetrating portion 20. The amount of change in the displacement of the penetration part 20 is, for example, the difference in the displacement of the penetration part 20 between the previous and subsequent times (ΔD(t)=D(t _i )-D(t _i-1 ), where i is the time step number in the time series. (an integer representing the value). Further, the calculation unit 82 calculates the velocity V(t) (=ΔD(t)/Δt, Δt: displacement time interval (sampling interval)) of the penetration part 20 from the temporal change in the displacement of the penetration part 20. Further, the calculation unit 82 calculates a value F(t)/V(t) obtained by dividing the penetration force F(t) of the penetration portion 20 by the velocity V(t) of the penetration portion 20. Further, the calculation unit 82 calculates a value F(t)/ΔD(t) obtained by dividing the penetration force F(t) of the penetration portion 20 by the amount of change ΔD(t) in the displacement of the penetration portion 20.

The calculation unit 82 also calculates the absolute value of the penetration force F(t) |F(t)|, the absolute value of the velocity of the penetration portion 20 |V(t)|, the absolute value of the amount of change in the displacement of the penetration portion 20| ΔD(t)|, the absolute value of the value obtained by dividing the penetration force F(t) of the penetration part 20 by the velocity V(t) of the penetration part 20 |F(t)/V(t)|, and the penetration force of the penetration part 20. The absolute value |F(t)/ΔD(t)| of the value obtained by dividing the input F(t) by the amount of change ΔD(t) in the displacement of the penetration portion 20 may be calculated.

The penetration force F(t) of the penetration part 20, the velocity V(t) of the penetration part 20, the amount of change in displacement ΔD(t) of the penetration part 20, and the penetration force F(t) of the penetration part 20 are expressed as the velocity of the penetration part 20. The value obtained by dividing the penetration force F(t) of the penetration part 20 by the amount of change ΔD(t) in the displacement of the penetration part 20, the value F(t)/ ΔD(t) and their absolute values |F(t)|, |V(t)|, |ΔD(t)|, |F(t)/V(t)|, |F(t)/ΔD( One or more of t)| becomes a control index.

The calculation unit 82 calculates the calculated penetration force F(t), the velocity V(t) of the penetration part 20, the amount of change in displacement ΔD(t) of the penetration part 20, and the penetration force F( of the penetration part 20) as necessary. t) divided by the speed V(t) of the penetration part 20, F(t)/V(t), and the penetration force F(t) of the penetration part 20 is the amount of change in displacement of the penetration part 20, ΔD(t). The divided values F(t)/ΔD(t) and their absolute values |F(t)|, |V(t)|, |ΔD(t)|, |F(t)/V(t)|, All or part of |F(t)/ΔD(t)| is stored in the storage unit.

By the way, when the penetration part 20 comes into contact with a structure buried underground, the penetration force of the penetration part 20 becomes large, and the amount of change in the displacement of the penetration part 20 and the speed of the penetration part 20 become small. Based on such properties, when the penetration part 20 penetrates into the ground, it can be determined whether the penetration part 20 comes into contact with a buried object such as a pipe buried underground, based on the calculated control index. For example, by comparing the control index with a threshold value, it is possible to determine whether the penetration part 20 has come into contact with an object buried underground. Specifically, if the signs of the penetration force F(t), displacement D(t), and velocity V(t) of the penetration part 20 are positive in the penetration direction (direction toward the tip in the longitudinal direction) of the penetration part 20, then the penetration The penetration force F(t) of the penetration part 20 or its absolute value |F(t)|, the value F(t)/V obtained by dividing the penetration force F(t) of the penetration part 20 by the velocity V(t) of the penetration part 20 (t) or its absolute value |F(t)/V(t)|or the value F(t) obtained by dividing the penetration force F(t) of the penetration portion 20 by the amount of change ΔD(t) in the displacement of the penetration portion 20 /ΔD(t) or its absolute value |F(t)/ΔD(t)| becomes larger than a predetermined value (threshold value) when the penetration part 20 comes into contact with a buried object buried underground. Further, the amount of change ΔD(t) in the displacement of the penetration part 20 or its absolute value |ΔD(t)| or the velocity V(t) of the penetration part 20 or its absolute value |V(t)| When it comes into contact with a buried object buried underground, the value becomes smaller than a predetermined value (threshold value).
Therefore, the penetration force F(t) of the penetration part 20 and its absolute value |F(t)|, the value F(t) obtained by dividing the penetration force F(t) of the penetration part 20 by the velocity V(t) of the penetration part 20. )/V(t) and its absolute value |F(t)/V(t)| and the value F obtained by dividing the penetration force F(t) of the penetration portion 20 by the amount of change ΔD(t) in the displacement of the penetration portion 20 If at least one of (t)/ΔD(t) and its absolute value |F(t)/ΔD(t)| becomes larger than a predetermined value (threshold value), the penetration part 20 is buried underground. It can be determined that the object has come into contact with the object. Further, at least one of the amount of change ΔD(t) of the displacement of the penetration part 20 and its absolute value |ΔD(t)| and the velocity V(t) of the penetration part 20 and its absolute value |V(t)| (threshold), it can be determined that the penetration portion 20 has come into contact with a buried object buried underground. The value F(t)/V(t) obtained by dividing the penetration force F(t) of the penetration part 20 by the velocity V(t) of the penetration part 20, its absolute value |F(t)/V(t)|, and the penetration The value F(t)/ΔD(t) obtained by dividing the penetration force F(t) of the portion 20 by the amount of change ΔD(t) in the displacement of the penetration portion 20 and its absolute value |F(t)/ΔD(t)| uses two indicators, and the value becomes very large when the penetration part 20 comes into contact with an object buried underground. It is possible to more accurately determine whether the penetration portion 20 is in contact with an object.

The calculation unit 82 calculates the penetration force F(t), the velocity V(t) of the penetration part 20, the amount of change ΔD(t) in the displacement of the penetration part 20, and the penetration force F(t) of the penetration part 20 into the penetration part. The value F(t)/V(t) is the value obtained by dividing the penetration force F(t) of the penetration part 20 by the amount of change ΔD(t) in the displacement of the penetration part 20. t)/ΔD(t) and their absolute values |F(t)|, |V(t)|, |ΔD(t)|, |F(t)/V(t)|, |F(t) /ΔD(t)| does not need to be calculated entirely, but only a part of it may be calculated. In addition, when the outputs of the first measurement unit 50 and the second measurement unit 60 acquired by the acquisition unit 81 are the penetration force and displacement itself, the calculation unit 82 calculates the penetration force F(t) and the displacement D(t). It is not necessary to calculate.

The warning control unit 83 causes the warning unit 70 to issue a warning based on the control index calculated by the calculation unit 82, and changes the mode of warning by the warning unit 70 according to the value of the control index. In this embodiment, the control index is a value F(t)/V(t) obtained by dividing the penetration force F(t) of the penetration part 20 by the velocity V(t) of the penetration part 20, and the warning control unit 83 Based on F(t)/V(t), the lamp (red lamp 74) of the warning section 70 is turned on. Further, the warning control unit 83 changes the lamp to be lit in the warning unit 70 according to the value of F(t)/V(t). Specifically, as the value of F(t)/V(t) increases, the warning control unit 83 sequentially lights up the upper lamps from the lower lamp of the warning unit 70. More specifically, the warning control unit 83 turns on the blue lamp 71 if the value of F(t)/V(t) is 1.0 (kNs/mm) or less, and If the value is greater than 4.0 (kNs/mm) and less than or equal to 4.0 (kNs/mm), the green lamp 72 is lit, and if the value is greater than 4.0 (kNs/mm) and less than or equal to 5.0 (kNs/mm), the yellow lamp 73 is lit. is turned on, and if it is larger than 5.0 (kNs/mm), a red lamp 74 is turned on. Illumination of the red lamp 74 means that the penetration portion 20 may be in contact with a structure buried underground. The warning control unit 83 may cause the buzzer 76 to generate a warning sound when the red lamp 74 is turned on.

Note that the control index is the penetration force F(t) of the penetration part 20 and its absolute value |F(t)|, and the value obtained by dividing the penetration force F(t) of the penetration part 20 by the velocity V(t) of the penetration part 20. The absolute value of |F(t)/V(t)| and the value F(t)/ΔD(t) obtained by dividing the penetration force F(t) of the penetration part 20 by the amount of change ΔD(t) in the displacement of the penetration part 20 ) and its absolute value |F(t)/ΔD(t)|, the control of the warning unit 70 by the warning control unit 83 is the same as above except for the numerical value that changes the lamp to be lit. . The control index is set to one or more of the amount of change in displacement ΔD(t) of the penetration part 20 and its absolute value |ΔD(t)|, and the velocity V(t) of the penetration part 20 and its absolute value |V(t)| In this case, the warning control section 83 sequentially lights up the upper lamps from the lower lamp of the warning section 70 as the values of these indicators become smaller. Further, in the geological survey device, the warning section 70 includes only a red lamp 74, and the warning control section 83 turns on the lamp when the penetration section 20 comes into contact with or there is a possibility of contact with a structure buried underground. It may also be something that lights up.

The cavity determination unit 84 determines whether there is a cavity underground based on the control index calculated by the calculation unit 82. When the penetration part 20 penetrates into the underground cavity, the penetration force of the penetration part 20 becomes very small. Based on such characteristics, in the present embodiment, the cavity determination unit 84 determines whether there is a cavity underground based on the penetration force F(t) of the penetration part 20 and the displacement D(t) of the penetration part 20. do. Specifically, the cavity determination unit 84 determines that the penetration section ΔDi of the penetration section 20 in which the penetration force F(t) is smaller than a predetermined penetration force value (the penetration force threshold) has a predetermined width (the penetration section threshold). , it is determined that there is a cavity in the penetration section. The penetration section ΔDi of the penetration portion 20 where the penetration force is smaller than the predetermined penetration force value is the end point De of the displacement of the penetration portion 20 where the penetration force is smaller than the predetermined penetration force value, and the penetration section ΔDi where the penetration force is smaller than the predetermined penetration force value. It is calculated based on the difference between the displacement of the penetration part 20 and the starting point Ds. When the cavity determination unit 84 determines that there is a cavity underground, the penetration section ΔDi of the penetration part 20 in which the penetration force F(t) is smaller than a predetermined penetration force value (threshold value of penetration force) is determined by the thickness of the cavity and It can be considered.

The abnormality determination unit 85 determines whether or not there is an abnormality in the measurement of the measurement unit based on the control index, and when it is determined that there is an abnormality, causes the warning unit 70 to issue a warning or causes the output unit further provided to output the measurement to the measurement unit. Outputs measurement abnormalities. It is preferable that the warning from the warning unit 70 by the abnormality determination unit 85 is different from the warning from the warning unit 70 by the warning control unit 83.
In this embodiment, the abnormality determination unit 85 determines whether there is an abnormality in the measurement of both or one of the first measurement unit 50 and the second measurement unit 60 based on the control index, and when it is determined that there is an abnormality, The warning unit 70 issues a warning. To explain more specifically, the abnormality determination unit 85 determines that, for the first measurement unit 50, the time during which the penetration force F(t) of the penetration portion 20 becomes smaller than a predetermined value (threshold value of penetration force) is a predetermined time ( time threshold), it is determined that there is an abnormality in the first measurement unit 50. Regarding the second measurement unit 60, the abnormality determination unit 85 determines that the time during which the displacement D(t) or velocity V(t) of the penetration portion 20 becomes smaller than a predetermined value (threshold value of penetration force) is a predetermined time ( time threshold), it is determined that there is an abnormality in the second measurement unit 60. When determining that there is an abnormality in the first measuring section 50, the abnormality determining section 85 causes one or more lamps of the warning section 70 to blink. When the abnormality determining section 85 determines that there is an abnormality in the second measuring section 60, the abnormality determining section 85 determines that there is an abnormality in the first measuring section 50 among the lamps 71, 72, 73, and 74 of the warning section 70. one or more lamps other than the one that is blinking.

When the outputs of the first measurement unit 50 and the second measurement unit 60 are voltage values or current values, the abnormality determination unit 85 specifically determines whether the voltage value or the current value is It may be determined that an abnormality occurs when the time during which the value becomes smaller than a predetermined value exceeds a predetermined time. The power measurement unit 90 also includes a power measurement unit 90 that measures the state of the power supplied to the first measurement unit 50 and the second measurement unit 60, for example, voltage or current, and the abnormality determination unit 85 detects the voltage measured by the power measurement unit 90. Alternatively, based on the current, specifically, it may be determined that there is an abnormality in the first measuring section 50 or the second measuring section 60 when the measured voltage value or current value becomes a predetermined value or less. The power measurement section 90 is connected to the first measurement section 50, the second measurement section 60, and the control section 80, as shown in FIG.

Note that the abnormality determining section 85 may output information indicating an abnormality in the measuring section to an output section such as a display instead of the warning section 70.

Next, a method of using the above-mentioned geological survey device will be explained. At a geological survey point, the moving part 16 and the vibrating part 17 move and vibrate the penetrating part 20 in its longitudinal direction to penetrate into the ground (underground). When the penetration part 20 penetrates into the ground, the first measurement part 50 and the second measurement part 60 measure the penetration force and displacement of the penetration part 20. The warning control unit 83 (control unit 80) sets the control index to the value F(t)/V(t) obtained by dividing the penetration force F(t) of the penetration part 20 by the velocity V(t) of the penetration part 20. Change the lamp that lights up accordingly. If the red lamp 74 among the lamps 71, 72, 73, and 74 of the warning part 70 lights up, there is a possibility that the penetration part 20 is in contact with a structure buried underground. 20 will stop penetrating underground.

Even if the lamp of the warning unit 70 flashes, the abnormality determination unit 85 determines that there is an abnormality in both or one of the first measurement unit 50 and the second measurement unit 60, and therefore stops the penetration of the penetration unit 20 into the ground. do.

The geological survey device includes a measurement unit that measures the penetration status of the penetration part 20 and a warning unit 70, and a control unit 80, based on the measurement value of the measurement unit or the calculated value calculated from the measurement unit as a control index, Since the warning section 70 issues a warning, it is possible to avoid or reduce damage to structures buried underground due to penetration of the penetration section 20 into the ground.

In the geological survey device, the warning section 70 can issue a warning in a plurality of different ways, and the control section 80 can change the warning manner of the warning section 70 depending on the magnitude of the value of the control index. , it becomes easier to understand the state of penetration of the penetration part 20 into the ground.

In the geological survey device, the warning section 70 is equipped with a plurality of lamps of different colors, and the control section 80 changes the mode of the warning by changing the lamp to be lit or by lighting a plurality of lamps, so that the operator is more aware of the warning. In addition, it becomes easier to understand the state of penetration of the penetration portion 20 into the ground.

In the geological survey device, the control unit 80 determines whether there is an abnormality in the measurement of the measurement unit based on the control index or the measured value of the power measurement unit 90, and if it is determined that there is an abnormality, the control unit 80 sends the warning unit 70, etc. Since the system gives a warning, abnormalities in the measuring section can be quickly detected.

Since the control unit 80 determines the presence or absence of an underground cavity based on the penetration force and displacement of the penetration part 20, the geological survey device can discover an underground cavity.

The present invention is not particularly limited to the embodiments described above, and can be modified as appropriate within the scope of the gist of the present invention.

10 Main body 11 Base part 11a Seat 11b Operation part 12 Traveling part 13 Power part 14 Leader 14a Mounting member 15 Tilting device 16 Moving part 16a Moving part main body 16b Moving drive part 17 Vibrating part 18 Rotating part 19 Drive control part 20 Penetrating part 22 Main shaft 30 Rod 32 Rod member 40 Cone 50 First measurement section 52 Case 58 Penetration force sensor 59 Cable 60 Second measurement section 62 Displacement measurement sensor 62a Displacement measurement sensor body 62b Wire 69 Cable 70 Warning section 71, 72, 73, 74 Lamp 76 Buzzer 80 Control unit 81 Acquisition unit 82 Calculation unit 83 Warning control unit 84 Cavity determination unit 85 Abnormality determination unit 90 Power measurement unit 110 Amplifier 112 AD conversion device 120 Pulse counter

Claims (8)

a penetration part capable of penetrating into the ground;
a measurement unit that measures the penetration status of the penetration part;
a warning section capable of issuing a warning;
a control unit connected to the measurement unit and the warning unit;
Equipped with
The control unit causes the warning unit to issue a warning based on the control index,
The control index is a measurement value measured by the measurement unit or a value calculated from the measurement value by the control unit,
comprising a power measurement unit connected to the control unit and measuring the status of power supplied to the measurement unit,
The control unit determines whether or not there is an abnormality in the measurement of the power measurement unit based on the measured value of the power measurement unit, and when it is determined that there is an abnormality, causes the warning unit to issue a warning or further provides an output. A geological survey device that outputs measurement abnormalities of the measuring section to a section . a penetration part capable of penetrating into the ground;
a measurement unit that measures the penetration status of the penetration part;
a warning section capable of issuing a warning;
a control unit connected to the measurement unit and the warning unit;
Equipped with
The control unit causes the warning unit to issue a warning based on the control index,
The control index is a measurement value measured by the measurement unit or a value calculated from the measurement value by the control unit,
The measurement section includes a first measurement section that measures the penetration force of the penetration section, and a second measurement section that measures the speed or displacement of the penetration section in the longitudinal direction of the penetration section,
The control index is calculated by the control unit, and is calculated by dividing the penetration force F(t) of the penetration part by the speed V(t) of the penetration part, where time is expressed as t. )/V(t) . a penetration part capable of penetrating into the ground;
a measurement unit that measures the penetration status of the penetration part;
a warning section capable of issuing a warning;
a control unit connected to the measurement unit and the warning unit;
Equipped with
The control unit causes the warning unit to issue a warning based on the control index,
The control index is a measurement value measured by the measurement unit or a value calculated from the measurement value by the control unit,
The measurement unit includes a first measurement unit that measures the penetration force of the penetration part, and a second measurement part that measures the displacement of the penetration part in the longitudinal direction of the penetration part,
The control unit is a geological survey device that determines the presence or absence of an underground cavity based on the penetration force and displacement of the penetration part . The warning unit is capable of issuing a warning in a plurality of different ways,
The geological survey device according to any one of claims 1 to 3, wherein the control unit changes the warning mode of the warning unit depending on the magnitude of the value of the control index. The warning unit includes a plurality of lamps of different colors,
The geological survey device according to claim 4 , wherein the control unit changes the mode of the warning by changing the lamp to be lit or by lighting a plurality of the lamps. The control unit determines whether or not there is an abnormality in the measurement of the measurement unit based on the control index, and when it is determined that there is an abnormality, causes the warning unit to issue a warning or causes an output unit further provided to issue the warning. The geological survey device according to claim 2 or 3, wherein the geological survey device outputs information indicating abnormality in measurement of the measuring section. The measurement unit includes a first measurement unit that measures the penetration force of the penetration part,
The geological survey device according to claim 1, wherein the control index is a penetration force F(t) of the penetration portion, where time is expressed as t. The measurement unit includes a second measurement unit that measures the speed or displacement of the penetration part in the direction of penetration of the penetration part into the ground,
The geological survey device according to claim 1, wherein the control index is a velocity V(t) of the intrusion, which is measured or calculated from a displacement of the intrusion by the control unit, where time is expressed as t.

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