JP3164861U - Landslide detection device - Google Patents

Abstract

An object of the present invention is to detect a landslide that can detect the slope of the ground accurately and at low cost, and can detect this in advance even when the time between the slope and the collapse of the ground is very short. Providing equipment. A pile portion that is driven into the ground, an inclination detection sensor that detects an inclination state of the pile portion, and an output portion that outputs an inclination state by the inclination detection sensor. The tilt detection sensor includes a lower electrode body made of a conical electrode with a recessed central portion, an upper electrode body provided at a position facing the conical bottom, and a lower electrode body and an upper electrode body. And a ball member to be provided. Moreover, the rainwater detection apparatus which detects the rainwater of a ground is attached to a pile part, and an alerting | reporting form is changed according to the rainwater and inclination state in a ground. [Selection] Figure 1

Description

  The present invention relates to a landslide detection device capable of detecting a landslide in advance.

  In general, landslide detection devices that can detect landslides are installed in mountainous areas and steep slopes. This landslide detection device is generally configured such that an iron fence is provided on the side of a road on a steep slope, and a landslide is detected by detecting the pulling state of the wire by passing a wire through the pillar of the iron fence.

  By the way, when such a landslide detection device is used, although the state after the landslide has occurred can be detected, the state immediately before the landslide cannot be detected.

  For this reason, the landslide detection apparatus as described in patent document 1 and patent document 2 is proposed as what can detect landslide beforehand. Among these, the landslide detection device described in Patent Document 1 is driven into a ground with a pile-shaped device with an inclination detection sensor, and when the inclination of the ground is detected by the inclination detection sensor built in the device, The sound of explosion is sounded to inform the surrounding residents of the dangerous situation. Similarly, in the device described in Patent Document 2, a pile-shaped device with an inclination detection sensor is driven into the ground, and landslides are detected according to the rolling condition of the ball member provided in the inclination detection sensor. It is something that can be done.

JP 2006-126156 A JP 2005-259533 A

  However, when such a tilt detection sensor described in the above-mentioned patent document is provided, there are the following problems. First, as shown in FIG. 7, such a tilt detection sensor includes a base plate 70 having a hole in the central portion and a ball member that fits into a hole 72 provided in the center of the base plate 70. 73 and a switch 71 for detecting the ball member 73 fitted in the hole 72. When the ball member 73 is removed from the hole due to the inclination, the switch 71 can detect this to detect the inclined state. However, when such a ball member 73 is inserted into the hole 72, the inclination detection accuracy varies greatly depending on the size of the hole 72. That is, when the hole 72 is enlarged, the ball member 73 cannot easily come out of the hole 72, and this cannot be detected unless it is largely inclined. For this reason, the accuracy of the inclination greatly depends on the inner diameter of the hole 72, and it becomes difficult to detect the inclination with uniform accuracy. Further, when the switch 71 is provided below the hole 72, it is difficult to set the balance between the weight of the ball member 73 and the ON / OFF state of the switch, and the center point of the ball member 73 can be accurately set. The position of the operation unit must be aligned. Furthermore, when the switch 71 is provided, there is a problem that the number of parts increases and the cost increases. Furthermore, when such a device is driven into the ground, the pile must be driven along the direction of action of gravity (that is, in the vertical direction), and there is a problem that it takes time to set the angle.

  In addition, even if a landslide detection device with such a tilt detection sensor is driven into the ground, if the landslide from the start of the ground to the collapse occurs in a very short time, even if a landslide warning is issued to neighboring residents, etc. It may not be in time.

  Accordingly, the present invention has been made paying attention to the above-mentioned problems, and has as its first object to provide a landslide detection device that can detect the inclination state of the ground accurately and at low cost. Furthermore, it is an object of the present invention to provide a landslide detection device that can detect in advance even when the time between the slope of the ground and the collapse occurs in a very short time.

  That is, in order to solve the above problems, the present invention includes a pile portion driven into the ground, an inclination detection sensor that detects an inclination state of the pile portion, and an output portion that outputs an inclination state by the inclination detection sensor. In the landslide detection device, the inclination detection sensor includes a lower electrode body made of a conical electrode with a depressed center part, an upper electrode body provided at a position facing the conical bottom part, and the lower electrode. The lower electrode body is provided between the body and the upper electrode body, has a gap with the upper electrode body in the central portion, and a ball member provided in a state of energizing the upper electrode body in the outer peripheral portion. The tilt state is detected based on the energization state between the upper electrode body and the upper electrode body.

  With this configuration, the ball member can be rolled in a conical plane, so that the detection accuracy can be changed by changing only the inclination angle of the bottom without depending on the size of the hole. Furthermore, since the tilt state is detected by the ball member portions coming into contact with the upper and lower electrodes, it is not necessary to attach a conventional contact type switch, and the cost can be reduced.

  Moreover, in such a device, an angle adjustment mechanism for adjusting the attachment angle of the inclination detection sensor is provided between the pile part or the pile part and the inclination detection sensor.

  In this way, since the angle of the inclination detection sensor can be adjusted after driving the pile portion into a free angle, the working efficiency can be remarkably improved.

  Further, the detection result can be output to a notification unit provided below the inclined surface by radio.

  In this way, it becomes possible to notify a passerby, a vehicle, or a resident who passes below the inclined surface of a dangerous state within the range of the field of view.

  In addition, the pile portion is provided with a rainwater detection portion that detects the amount of rainwater contained in the ground, the rainwater detection portion detects a certain amount or more of rainwater, and the inclination state detected by the inclination detection sensor Is output.

  In this way, it is possible to notify the danger state by combining the state with a large amount of moisture contained in the ground and the inclination, so that, for example, when the inclination detection sensor is inclined due to contact with an animal or the like. As a result, false alarms are not generated.

  In the landslide detection device of the present invention, the ball member is rolled in a conical plane to detect the tilted state, so that the detection accuracy can be changed only by the tilt angle of the bottom. In addition, since the tilt state is detected by bringing the ball members into contact with the upper and lower electrodes, there is no need to attach a contact type switch as in the past, and it is necessary to set the position of the operation lever, the pressing force, etc. Disappear. Thereby, a highly accurate landslide detection device can be provided at low cost.

The figure which shows the external appearance of the landslide detection apparatus in one embodiment of this invention Cross-sectional schematic diagram of tilt detection sensor in the same form The figure which shows the other electrode body of the inclination detection sensor in the same form The figure which shows the rainwater detection apparatus in the same form The figure which shows the cross-sectional schematic of the rainwater detection apparatus in the same form The figure which shows the other example of a rainwater detection apparatus in the form The figure which shows the outline | summary of the rainwater detection apparatus in a prior art example

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 shows an external perspective view of the landslide detection device 1 in the present embodiment, and FIG. 2 shows a schematic cross-sectional view of the inclination detection sensor 41 in FIG.

  The landslide detection device 1 in this embodiment includes a pile portion 2 that is driven into a ground having an inclined surface that may cause landslide, a universal joint 3 that is attached to an upper end of the pile portion 2, and a universal joint 3. It is provided with an inclination detection device 4 attached to the upper part, and the state of inclination detected by the inclination detection device 4 is output to a notification output unit 5 provided below the inclined surface, which is a dangerous state. So that passers-by can be notified. Hereinafter, the landslide detection device 1 will be described in detail.

  First, the pile portion 2 is designed to be driven into the ground, and is composed of a metal member having a cross-section in cross section, and has a tapered shape with a width that decreases gradually toward the lower end. And the universal joint 3 is provided in the upper end part of this pile part 2 as an angle adjustment mechanism.

  The universal joint 3 is configured to include a rotation axis in at least two orthogonal (XY axis) directions, and the tilt detection device 4 can be set in a vertical state by changing the direction of the tilt detection device 4 in an arbitrary direction. To. That is, in FIG. 1, when the tilt detection device 4 is tilted in the A direction, the tilt detection device 4 is tilted around the first axis 31, and when the tilt detection device 4 is tilted in the B direction, The tilt detection device 4 is tilted about the two axes 32. Thereby, the inclination detection device 4 is directed in the vertical direction.

  Above the universal joint 3, an inclination detection device 4 is detachably attached. This inclination detection device 4 is attached after the pile part 2 is driven into the ground, and an inclination detection sensor 41 and a wireless output part 45 that outputs the inclination state of the inclination detection sensor 41 are provided therein. Yes.

  FIG. 2 shows the configuration of the tilt detection sensor 41. In FIG. 2, reference numeral 42 denotes a pair of electrode bodies made of metal, and is composed of an upper electrode body 42u and a lower electrode body 42d. The upper electrode body 42u and the lower electrode body 42d are each configured in an umbrella shape in which the ball member 44 can be rolled in the same conical plane. An insulating spacer 43 is attached to the central portion with the body 42d facing each other. As a result, the upper and lower gap widths at the central portion where the spacer 43 is present can be increased, and the upper and lower gap widths can be gradually reduced toward the outer peripheral portion. In FIG. 2, reference numeral 44 denotes a ball member, which is formed of a conductive member. This ball member 44 ensures the energized state of the upper electrode body 42u and the lower electrode body 42d by contacting both the upper electrode body 42u and the lower electrode body 42d, thereby detecting the inclined state. That is, when the tilt detection sensor 41 is installed in a vertical state, the ball member 44 is positioned at the center of the lower electrode body 42d due to the weight of the ball member 44, and there is a gap between the upper electrode body 42u. And no power is applied. On the other hand, when the tilt detection sensor 41 tilts in any direction, the ball member 44 moves downward by its own weight, and is sandwiched between the upper electrode body 42u and the lower electrode body 42d. As a result, the energized state between the upper electrode body 42u and the lower electrode body 42d is secured, and the inclination is detected. Here, the upper electrode body 42u and the lower electrode body 42d are configured using the same umbrella-shaped metal body. However, as shown in FIG. 3, only the lower electrode body 42d is umbrella-shaped. The upper electrode body 42u can also be formed of a planar metal body. Even in the case of such a configuration, the ball member 44 rolls similarly when the tilt detection sensor 41 tilts, and the ball member 44 is sandwiched between the upper electrode body 42u and the lower electrode body 42d. The inclination state can be detected.

  When this energized state is detected, the tilt state is output to the distant notification output unit 5 via the wireless output unit 45. The wireless output unit 45 is driven by a built-in battery, and can output a relatively weak radio wave whose radio wave reach is set to about several tens of meters in order to suppress battery consumption.

  On the other hand, the notification output unit 5 that receives this radio wave is provided below the inclined surface, or on the side of the road, in the vicinity of the house, and the like, as shown in FIG. A display unit 51 having a plurality of LEDs is provided at the upper end portion. When this notification output unit 5 is provided below the inclined surface, the pile unit 2 is driven into the ground so that the display unit enters the field of view of the passerby. Further, the display unit 51 may be attached to the upper part of the pylon so that it can be used.

  As described above, according to the above-described embodiment, the ball member 44 is sandwiched by the conical metal member having a continuous plane, and the energization state of the upper and lower metal members due to the inclination is detected so that the inclination can be detected. Compared to the conventional case where the ball member 44 is dropped into the hole and detected by a switch, there is no need to provide a switch or the like, and the detection accuracy varies greatly depending on the size of the hole. Such problems can be solved.

<Second Embodiment>
Next, the landslide detection device 1 according to the second embodiment will be described. In the first embodiment, only the inclination detection sensor 41 is attached. However, when the inclination detection sensor 41 alone is inclined due to the influence of wind or contact with animals, dead trees, etc., There is a risk of false alarms. Therefore, in the second embodiment, the rainwater detection device 6 for detecting the amount of rainwater contained in the ground is attached to the pile portion 2, and the detection state by the rainwater detection device 6 and the inclination state of the inclination detection sensor 41 are attached. Can be used to output an alarm.

  FIG. 4 illustrates the structure of the rainwater detection device 6.

  In FIG. 4, 61 is a cylinder 61 that covers the rainwater detection device 6 and is buried in the ground. In addition, inside the cylindrical body 61, a pair of electrode bodies 63 for detecting the amount of rainwater that has entered the cylindrical body 61, a battery as a driving power source, and an energization state between the electrode plates are used as electrical signals. A circuit board 65 to be detected is provided.

  The cylinder 61 in the rainwater detection device 6 is constituted by a resin cylinder 61, and a plurality of holes 62 penetrating inward are provided in an outer peripheral portion thereof. The size of the hole 62 is set such that when the cylindrical body 61 is buried in the ground, earth and sand do not enter from there, and only rainwater contained in the soil can enter. Further, a hole 62 is also provided in the bottom surface portion of the cylindrical body 61. When the rainwater enters from the hole 62 in the bottom surface portion and the rain stops and moisture in the soil is reduced, the bottom surface portion is provided. The rain water inside the cylindrical body 61 can be discharged from the hole 62.

  The pair of electrode bodies 63 provided inside the cylindrical body 61 are provided at a predetermined distance via a spacer 64 made of an insulator, and are provided with two conductors facing each other. . The electrode body 63 will be described by taking as an example a case where two conductors configured in a plane are opposed to each other, but as shown in FIG. 6, a cylindrical conductor configured concentrically is arranged on the inner side and the outer side. And a pair of electrode bodies 63 may be configured thereby. In addition, this conductor may be composed not only of a plate-shaped metal body but also of a metal body having a large number of punch holes, or a carbon plate-shaped material, a cylindrical material, a porous material, etc. it can. Here, when a conductor having a large number of punch holes is used, the entire apparatus can be reduced in weight and cost, and the inside can be made air permeable by the punch holes, such as metal rust. Occurrence can be prevented. In addition, when a carbon material is used, it is possible to further reduce the weight, and to prevent deterioration of the energized state between the electrodes due to rust and the like.

  The circuit board 65 detects the amount of rainwater present between the electrode bodies 63, and outputs an output result corresponding to the resistance value and current between the electrode bodies 63 to the notification output unit 5. When a large amount of rainwater enters the inside of the cylindrical body 61, the electrical resistance between the electrode bodies 63 decreases and the current flowing between the electrode bodies 63 increases, so that the display mode according to the decreased resistance value and the increased current Is displayed on the display unit 51. At this time, when rainwater does not enter the inside of the cylindrical body 61, no current flows between the electrode bodies 63, and the electrode body 63 serves as a capacitor, so that the battery life is extended. Can do.

  When the rainwater detection device 6 detects a certain amount or more of rainwater in this way, a notification output is made to the notification output unit 5 via the wireless output unit 45, and a display corresponding to the amount of rainwater is displayed on the notification output unit 5. Done. At this time, when the rainwater detection device 6 does not detect rainwater and the inclination detection device 4 detects inclination, the rainwater detection device 6 displays it in the first display form. Is detected and the tilt detection device 4 does not detect the tilt, the display is performed in the second display mode. When the rainwater detection device 6 detects a certain amount or more of rainwater and the inclination detection device 4 detects the inclination, the display is performed in the third display form as a very dangerous state.

  As described above, according to the above-described embodiment, the rainwater detection device 6 that detects rainwater contained in the ground is provided, and the dangerous state is notified and output in combination with the detection of the inclined state by the inclination detection device 4. It will be possible to notify the more dangerous state step by step, and it will be distinguished from the case where the animal or dead tree etc. just tilted in contact with the case where it tilts in a state that is likely to cause a landslide. You will be able to inform passers-by.

  In addition, this invention is not limited to the said embodiment, It can implement in a various aspect.

  For example, in the above-described embodiment, the notification output unit 5 is provided remotely. However, when the inclined surface is within the field of view, the notification output unit 5 is provided integrally with the landslide detection device 1. May be.

  Moreover, in the said embodiment, although the detection detected with the one landslide detection apparatus 1 was made to alert | report with the one notification output part 5, when the inclination state is detected with the some landslide detection apparatus 1, for example, You may make it alert | report an inclination as "it is not a false report by an animal etc.". At this time, you may make it change an alerting | reporting form according to the number of the landslide detection apparatuses 1 which detected the inclination state.

  Furthermore, in the above-described embodiment, when the inclination state is detected or when rainwater is detected, the display state of the notification output unit 5 is changed to notify the user. You may make it alert | report by. Or you may make it alert | report an abnormality to the monitoring center provided in the remote place by attaching a radio | wireless machine inside.

DESCRIPTION OF SYMBOLS 1 Detection apparatus 2 Pile part 3 Universal joint 4 Inclination detection apparatus 5 Notification output part 6 Rainwater detection apparatus 31 1st axis | shaft 32 2nd axis | shaft 41 Inclination detection sensor 42d Lower electrode body 42u Upper electrode body 43 Spacer 43 Ball member 45 Wireless output Part 61 cylindrical body 61 hollow cylindrical body 61 cylindrical body 62 hole 63 electrode body 64 spacer 65 circuit board

Claims (4)

In a landslide detection device comprising a pile portion that is driven into the ground, an inclination detection sensor that detects an inclination state of the pile portion, and an output portion that outputs an inclination state by the inclination detection sensor,
The tilt detection sensor includes a lower electrode body made of a conical electrode with a recessed central portion, an upper electrode body provided at a position facing the conical bottom, the lower electrode body and the upper electrode body, Between the lower electrode body and the upper electrode body, with a gap between the upper electrode body at the center and a ball member provided in an energized state with the upper electrode body at the outer periphery. A landslide detection device characterized by detecting an inclined state according to an energized state.   The landslide detection device according to claim 1, wherein an angle adjustment mechanism for adjusting an attachment angle of the inclination detection sensor is provided between the pile portion or the pile portion and the inclination detection sensor.   The landslide detection device according to claim 1, wherein the output unit is configured to output to a notification unit provided below the inclined surface of the ground by radio.   The pile portion is provided with a rainwater detection portion that detects the amount of rainwater contained in the ground, and the rainwater detection portion detects a certain amount or more of rainwater and outputs that the inclination state is detected by the inclination detection sensor. The landslide detection apparatus according to claim 1, which is configured as described above.

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