JPH11241919A - Inclination monitoring apparatus and method for installation of inclination monitoring apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To safely carry out a monitoring work at low cost by monitoring the attitude change by installing an inclination change detecting means and an inclination change informing means in an object whose inclination is to be monitored. SOLUTION: This inclination monitoring apparatus 1 is provided with an inclination sensor 3 for detecting the inclination change of an object whose inclination is to be monitored and an informing lamp 4 for carrying out informing operation corresponding to the detected signal, so that the attitude change of the object can be monitored by an easy conduct of observing the lighting state of the informing lamp 4. As a result, not only inclination monitoring of a rock bed or the like can be carried out at low cost but also the safety of the monitoring work can be improved. Moreover, since the inclination sensor 3 is a digital type inclination sensor constituted of a vibration type movable electrode (a metal ball 19 and a metal wire 20) constantly facing to the gravity direction and a fixed electrode (a metal ring 21) for detecting the inclination variation of the object by the contact with the movable electrode, inclination can stably be detected as compared with the case of using an analog type inclination sensor. Due to the simplification of the structure, the inclination monitoring apparatus 1 can be miniaturized and the manufacturing cost is lowered.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention belongs to the technical field of an inclination monitoring device to be used by attaching to an object to be monitored such as rock, ground, structure, building, and the like, and a method of attaching the inclination monitoring device.

[0002]

2. Description of the Related Art In recent years, rock, ground,
With respect to structures, buildings, and the like, it has been studied to monitor the change in inclination and to prevent a collapse accident based on the monitoring data.

[0003]

However, in order to predict a collapse accident in advance, it is necessary to frequently acquire high-precision measurement data. , The safety of the measurement work was a problem.

[0004]

SUMMARY OF THE INVENTION The present invention has been made to solve these problems in view of the above situation, and is fixed to an object to be monitored via fixing means. It is characterized by comprising a case body, inclination change detecting means for detecting a change in inclination of the case body, and inclination change notifying means for notifying a change in inclination in accordance with a detection signal of the inclination change detecting means. . In other words, since the posture change of the object to be monitored can be monitored with a simple operation of checking the notification state of the tilt monitoring device, it is not permissible to monitor the inclination of the rock or the like at low cost. The safety of monitoring work can also be improved. Further, the tilt change detecting means is characterized by comprising a pendulum-type movable electrode which always faces the direction of gravity, and a fixed electrode which detects a tilt change based on contact with the movable electrode. It is. That is, it is not possible to perform stable tilt detection that is not affected by a temperature change, and it is possible to contribute to downsizing and cost reduction of the tilt monitoring device based on simplification of the structure. The movable electrode is composed of a metal sphere that functions as an electrode and a weight, and a metal wire that suspends the metal sphere, while the fixed electrode is composed of a metal ring that surrounds the metal sphere at a predetermined interval. It is characterized by having been done. That is, since the inclination change detecting means can be simplified as much as possible, the cost of the inclination monitoring device can be reduced. Also, the detection set angle of the inclination change detecting means is adjusted based on replacement with a metal ring or a metal ball having a different diameter. That is, since the detection setting angle of the inclination change detecting means can be adjusted with a simple configuration, the angle cannot be set according to the object to be monitored, and the cost of the inclination monitoring device can be reduced. . Further, the movable electrode is constituted by a metal wire for suspending the weight, while the fixed electrode is constituted by a metal ring surrounding the metal wire at a predetermined interval. That is, since the inclination change detecting means can be simplified as much as possible, the cost of the inclination monitoring device can be reduced. Further, the detection set angle of the inclination change detecting means is adjusted based on the vertical position adjustment of the metal ring or the metal wire. That is, since the detection setting angle of the inclination change detecting means can be adjusted with a simple configuration, the angle cannot be set according to the object to be monitored, and the cost of the inclination monitoring device can be reduced. . Further, the inclination change detecting means is characterized by being configured using a pendulum body which always faces the direction of gravity and a non-contact type displacement sensor which detects a relative displacement of the pendulum body with respect to the case body in a non-contact manner. Is what you do. That is, it is possible to prevent the detection failure due to the oxidation of the contact, the adhesion of dust, the chattering, and the like, and to improve the reliability and accuracy of the tilt monitoring device. Further, the non-contact displacement sensor is characterized in that it is a photoelectric displacement sensor that includes a light emitting device and a light receiving device and detects a displacement of a pendulum body based on a light receiving state of the light receiving device. That is, since a general-purpose sensor device such as a photo interrupter can be used, the manufacturing process cannot be simplified, and the cost can be reduced. In addition, a flange portion having a substantially circular shape in a plan view is formed on an outer peripheral portion of the pendulum body, and a plurality of transmission-type photoelectric displacement sensors are arranged at predetermined intervals in a circumferential direction near an outer edge portion of the flange portion. Then, a change in the inclination of the case body is determined based on the detection of the position of the flange by each photoelectric displacement sensor. That is, since the inclination direction of the case body can also be detected, detailed inclination change information can be notified as compared with the case where only the presence or absence of the inclination change is detected. In addition, while forming a reflection portion and a non-reflection portion on the bottom of the pendulum body, at a position facing the bottom of the pendulum body,
A reflective photoelectric displacement sensor is provided, and a change in the inclination of the case body is determined based on detection of the position of the pendulum body by the photoelectric displacement sensor. That is,
Since a single photoelectric displacement sensor can detect the change in inclination of the case body, the structure is simplified, the number of parts is reduced,
It is possible to simplify the detection circuit, reduce the cost, and the like. The tilt change detecting means is constituted by an analog tilt sensor that detects the tilt angle of the case body at a predetermined resolution, and stores and holds initial detection data of the tilt sensor based on a preset command. It is characterized in that a change in the inclination of the case body is determined based on a comparison between a deviation of the present detection data from the held initial detection data and a preset deviation. That is, since a general-purpose tilt sensor device (capacitance type or the like) can be used, the manufacturing process can be simplified and the cost can be reduced, and the tilt monitoring device does not need to be installed in a horizontal position. Also, the installation work can be simplified.
Further, the case body is formed of a transparent resin member. That is, since the inclination change detecting means provided in the case body can be visually observed from the outside, the operation of the inclination change detecting means and the initial set position can be easily confirmed, and as a result, the mounting angle of the inclination monitoring device Adjustment and maintenance can be facilitated. Further, the inclination change notification means notifies the inclination change only when the inclination change detection state continues for a predetermined time. That is, even if the inclination monitoring device temporarily vibrates based on vehicle traffic, wind pressure, earthquake, or the like, the inclination change notification means does not operate. Reliability can be improved. Further, the inclination change notifying means notifies the inclination change using a light emitting device. That is, since the informing operation state of the tilt monitoring device can be confirmed from a distant point, it is not permissible that the patrol work of the tilt monitoring device becomes easy, and the safety of the patrol work can be improved. Further, the case body is formed of a cylindrical transparent resin member, and a plurality of light emitting devices are arranged at predetermined intervals on an inner peripheral portion of the case body. That is, there is an advantage that the notification operation state of the tilt monitoring device cannot be checked from multiple directions, and the light emitting device can be protected by using the case body. Also,
A plurality of light-emitting patterns of the light-emitting device are set, and the light-emitting pattern is switched based on detection of a change in inclination. In other words, since the light emitting device is constantly turned on or flashed, it is not possible to easily check the position and the notification operation state of the inclination monitoring device even at night, and a failure of the inclination monitoring device based on the turning off of the light emitting device is not allowed. You can judge. In addition, the inclination change notification means,
A tilt change notification signal is output to the outside via an output terminal. That is, since the inclination change notification signal can be output to an external alarm device installed at a different location, a centralized monitoring device to which a plurality of inclination monitoring devices can be connected, and the like, the usage of the inclination monitoring device can be increased. Without being allowed to do so, it is possible to systematize a plurality of tilt monitoring devices and perform tilt monitoring over a wide area at once. Further, the tilt change notification means outputs a tilt change notification signal to an external alarm device installed at another location. In other words, when the tilt monitoring device is installed in a location that is not visible from the monitoring location, the change in tilt can be notified by an external alarm device installed in another location with good visibility. Further, a battery for operating each means is incorporated in the case body. That is, it is possible to provide an all-in-one type inclination monitoring device that is easy to install and low in cost. Further, a storage battery for operating each means and a solar cell for charging the storage battery are incorporated in the case body. That is, it is not possible to provide an all-in-one type tilt monitoring device that is easy to install and that is low in cost. Also,
The case body has a cylindrical shape, and a flexible film-shaped solar cell is adhered to the peripheral surface of the case body. That is, since the light receiving area of the solar cell can be efficiently secured, the size and weight of the tilt monitoring device cannot be reduced, and the cost can be reduced. In addition, the case body is formed of a cylindrical transparent resin member, and a flexible film-shaped solar cell is attached to the peripheral surface of the case body so as to avoid a viewing window for viewing the inside of the case body. It is characterized by wearing. That is, since the viewing window is secured while the solar cell is stuck to the peripheral surface of the case body, the operation of the inclination change detecting means and the initial set position can be easily confirmed. Further, the fixing means is provided with a mounting angle coarse adjustment mechanism for coarsely adjusting the mounting angle of the case body and a mounting angle fine adjustment mechanism for finely adjusting the mounting angle of the case body. In other words, the mounting angle can be adjusted with higher accuracy than when only the coarse adjustment mechanism is provided, while the efficiency of the mounting angle adjustment is increased as compared with the case where only the fine adjustment mechanism is provided. Can be. In addition, a level is provided on an upper part of the case body for visually judging an attachment angle of the case body. That is, workability, work efficiency, adjustment accuracy, and the like can be improved as compared with the case where the mounting angle is adjusted while looking at the inclination change detecting means in the case. In addition, a plurality of tilt monitoring devices are installed at a plurality of locations, and a centralized monitoring device capable of inputting a tilt change notification signal from the plurality of tilt monitoring devices is installed. Further, the centralized monitoring device includes detection from each tilt monitoring device. The present invention is characterized in that a tilt change batch notification means for batch notification of a tilt change according to a signal is provided. In other words, since a plurality of tilt monitoring devices can be systematized and a wide area tilt monitoring can be performed collectively, individual patrol work of the tilt monitoring device is not required, and monitoring personnel and monitoring costs can be reduced. Instead, wide-area tilt change information can be acquired in real time to respond quickly. The tilt change batch notification means is an alarm device that warns of a tilt change by light or voice. In other words, the warning can be quickly and easily recognized as compared with a case where a plurality of tilt monitoring devices individually generate a warning, so that it is possible to quickly respond to a change in tilt. Further, the tilt change batch notification means is a transmission device that transmits the tilt change information to a monitoring center at a remote location by wire or wirelessly. In other words, the inclination change can be monitored in real time at a remote monitoring center, eliminating the need for even a round trip operation of a centralized monitoring device, and as a result, the number of monitoring personnel and monitoring costs can be further reduced. , A large scale tilt monitoring network can be constructed. Further, the centralized monitoring device is characterized in that it operates using a storage battery charged by a solar battery as a power supply. In other words, since there is no need to lay the power cable, the installation cost cannot be reduced, and there is an advantage that the power cable can be installed in a place where it is difficult to secure the power supply. In addition, when mounting the inclination monitoring device in a horizontal posture on the object to be monitored, after pouring a quick-curing mortar into a recess formed in the object to be monitored or a recess of a fixing member fixed to the object to be monitored. , Float the floating member on the uncured mortar and wait for the mortar to cure,
Thereafter, an inclination monitoring device is attached to the floating member. That is, since the leveling of the tilt monitoring device can be performed with an easy operation that allows the floating member to float on the mortar in an uncured state, the mounting operation of the tilt monitoring device is simplified as compared with the case where the leveling is performed mechanically. be able to. Further, after attaching the inclination monitoring device to the floating member, the mounting angle of the inclination monitoring device is finely adjusted by a mounting angle fine adjustment mechanism interposed between the floating member and the inclination monitoring device. is there. That is, the leveling error caused by the floating member can be corrected by the mounting angle fine adjustment mechanism, so that it is possible to provide a mounting method having both good mounting workability and high mounting accuracy.

[0005]

Next, a first embodiment of the present invention will be described with reference to the drawings. In the drawings, reference numeral 1 denotes an inclination monitoring device which is used by being attached to an object to be monitored such as a rock, and a case body 2 forming an outer shell of the inclination monitoring device 1 is provided with a tilt change of the object to be monitored. Inclination sensor 3 for detecting,
A notification lamp 4 whose lighting is controlled based on a detection signal of the tilt sensor 3, a control board 5 including a microprocessor,
A storage battery 6 for supplying power to each unit, a solar cell 7 for charging the storage battery 6, and the like are incorporated.

Reference numeral 8 denotes a mounting mechanism for mounting the tilt monitoring device 1 on the monitored object. The mounting mechanism 8 includes a first mounting plate 9 fixed to the monitored object using anchor bolts or the like. A second mounting plate 11 supported on the first mounting plate 9 via a mounting angle coarse adjustment mechanism 10;
A third mounting plate 13 and the like supported by the second mounting plate 11 via a fine mounting angle adjustment mechanism 12 and the like, and the inclination monitoring device 1 is integrally mounted on the upper surface of the third mounting plate 13. .

The attachment angle coarse adjustment mechanism 10 is configured by connecting a first joint 14 that can be bent in one direction and a second joint (ball joint) 15 that can be bent in multiple directions in series. . And since the bending range is ensured widely in the first and second joints 14 and 15, even if the first mounting plate 9 is fixed to the inclined surface or the vertical surface of the object to be monitored, the inclination monitoring device 1 Can be roughly adjusted roughly horizontally. 14a and 15a are bending lock screws which are screwed into the boss portions 14b and 15b of the joints 14 and 15, and lock the bending of the joints 14 and 15 based on the screwing operation of the bending lock screws 14a and 15a. It has become.

On the other hand, the mounting angle fine adjustment mechanism 12 includes a third joint 16 for connecting the third mounting plate 13 to the second mounting plate 11 so as to be tiltable in multiple directions, and a screw on the third plate 13 from above. It is composed of a pair of adjusting screws 17, 18, etc., which contact each other and have a front end surface abutting on the second mounting plate 11. That is, the third plate 16 is supported at three points by the third joint 16 and the pair of adjusting screws 17 and 18, and the mounting angle of the inclination monitoring device 1 is finely adjusted based on the operation of moving the adjusting screws 17 and 18. Since the inclination monitoring device 1 at the time of the fine adjustment has already been roughly adjusted to the substantially horizontal state by the mounting angle coarse adjustment mechanism 10, it is not necessary to secure a particularly wide fine adjustment range, and the fine adjustment operation is not performed. It can be done quickly and accurately.

The tilt sensor 3 comprises a metal ball 19 functioning as an electrode and a weight, and a metal wire 20 for suspending the metal ball 19, while forming a pendulum-type movable electrode. A fixed electrode is constituted by a metal ring 21 surrounding at an interval. That is, since the digital tilt sensor 3 is configured by using the movable electrode that always faces the direction of gravity and the fixed electrode that detects a change in the tilt of the monitored object based on the contact with the movable electrode, the temperature is increased. It is not a forgiveness to be able to perform stable tilt detection that is not affected by changes,
It is possible to reduce the size and cost of the tilt monitoring device 1 based on the simplification of the structure.

The vertical distance from the base end of the metal wire 20 to the metal ring contact position of the metal ball 19 is L (pendulum length), and the distance between the metal ball 19 and the metal ring 21 is D.
(Inter-electrode distance), the detection setting angle θ of the inclination sensor 3 can be obtained by the following equation θ = tan ⁻¹ D / L. In the present embodiment, metals having different inner diameters (metal ball diameter + 2D) are used. Since various types of rings 21 are prepared, the detection set angle θ of the inclination sensor 3 can be changed only by replacing the metal ring 21. As a result, the detection angle can be easily set according to the monitored object. You can do it. In addition, metal balls 19 having different outer diameters are used.
May be prepared, and the detection set angle θ of the inclination sensor 3 may be changed based on the replacement of the metal ball 19.

Reference numeral 22 denotes a cylindrical resin pipe which forms the side surface of the case body 2. The upper and lower openings of the cylindrical resin pipe 22 are each hermetically covered with a circular lid member 23 to form the case body 2. However, since the cylindrical resin pipe 22 is formed of a transparent acrylic resin, the mounting angle of the tilt monitoring device 1 can be adjusted while visually checking the distance between the metal ball 19 and the metal ring 21 from the outside. Has become.

As the solar cell 7, a flexible film type solar cell is adopted, and the film type solar cell 7 is adhered along the inner peripheral surface of the cylindrical resin pipe 22. . For this reason, the light receiving area of the solar cell 7 can be efficiently secured and the size and weight of the tilt monitoring device 1 can be reduced, and the solar cell 7 can be protected by using the case body 2. And a metal ball 1
Since the solar cell 7 is stuck so as to avoid the viewing window 2a for visually observing the distance between the metal ring 9 and the metal ring 21, it is possible to avoid a disadvantage that adversely affects the adjustment of the mounting angle of the tilt monitoring device 1. It has become.

The notification lamp 4 is configured by arranging a plurality of light emitting diodes LED at predetermined intervals in the circumferential direction on the inner peripheral portion of the cylindrical resin pipe 22. That is, it is not possible to check the inclination change detection state of the inclination monitoring device 1 from multiple directions, and the case body 2 can be used to protect the light emitting diodes LED.

The control board 5 includes a microprocessor (MPU), a read-only memory (ROM), a random access memory (RAM), an input / output interface circuit (I / O), and the like. Is connected to the electrodes of the tilt sensor 3 described above, while the notification lamp 4 described above is connected to the output side. That is, a program of “tilt monitoring control” for controlling lighting of the notification lamp 4 based on the detection signal of the tilt sensor 3 is written in advance in the read-only memory.
The control procedure of the “tilt monitoring control” will be described based on a flowchart.

In the "tilt monitoring control", the first notification pattern for blinking the notification lamp 4 and the notification lamp 4
Is set in advance, and when the tilt sensor signal is OFF, the notification lamp 4 is activated to emit light in the first notification pattern, and when the tilt sensor signal is ON. Is designed to cause the notification lamp 4 to emit light in the second notification pattern. That is, since the notification lamp 4 is always blinked or continuously lit, the position and the notification operation state of the inclination monitoring device 1 cannot be easily checked even at night. 1 can be determined.

In the "inclination monitoring control", a confirmation timer is set immediately after the inclination sensor signal changes from OFF to ON, and a blinking state of the notification lamp 4 (first notification pattern) until the confirmation timer elapses. ) Is maintained. That is, when the inclination monitoring device 1 temporarily vibrates based on the traffic of the vehicle, wind pressure, earthquake, etc., the switching of the notification pattern is not performed.
The reliability of the tilt monitoring device 1 can be improved by eliminating the noise-like notification operation.

In the apparatus configured as described above, the inclination monitoring device 1 includes an inclination sensor 3 for detecting a change in inclination of the object to be monitored, and a notification lamp 4 for performing an alarm operation in accordance with a detection signal of the inclination sensor 3. Therefore, it is possible to monitor the change in the attitude of the object to be monitored with a simple operation of checking the lighting state of the notification lamp 4, and as a result, it is possible to monitor the inclination of the rock etc. at low cost. Not forgiveness,
The safety of monitoring work can also be improved.

Further, the tilt sensor 3 detects a change in tilt of the object to be monitored based on the contact between the movable electrode (metal ball 19 and metal wire 20) of a pendulum type which always faces in the direction of gravity and the movable electrode. Since the digital tilt sensor is configured with the fixed electrode (metal ring 21), there is no inconvenience that a large detection error occurs according to a temperature change unlike the analog tilt sensor. As a result, a temperature correction circuit and the like are provided. Without being able to perform stable tilt detection without any problem, it is possible to reduce the size and cost of the tilt monitoring device 1 based on the simplification of the structure.

The tilt monitoring device 1 includes a solar cell 7
Since the power is supplied from the (storage battery 6), it is not necessary to perform operations such as battery replacement and the like, and it is not necessary to lay the power cable or the like, thereby reducing the installation cost.

Further, the inclination monitoring device 1 and a first mounting plate 9 fixed at an arbitrary angle with respect to the object to be monitored.
A coarse mounting angle adjusting mechanism 10 for coarsely adjusting the mounting angle of the tilt monitoring device 1 and a fine mounting angle adjusting mechanism 12 for finely adjusting the mounting angle of the tilt monitoring device 1 are interposed therebetween. It is possible to adjust the mounting angle with higher accuracy than when only the coarse adjustment mechanism is interposed, but it is possible to improve the efficiency of the mounting angle adjustment as compared with the case where only the fine adjustment mechanism is interposed. it can.

Further, since the case body 2 of the tilt monitoring device 1 is formed using a cylindrical resin pipe 22 and a flexible film type solar cell 7 is adhered to the peripheral surface of the cylindrical resin pipe 22, Not only is it possible to efficiently secure the light receiving area of the solar cell 7 and reduce the size and weight of the tilt monitoring device 1 but also contribute to cost reduction.

Further, since the cylindrical resin pipe 22 is transparent, it is possible to adjust the mounting angle of the tilt monitoring device 1 while visually observing the distance between the metal ball 19 and the metal ring 21 from the outside. The adjustment of the mounting angle of the monitoring device 1 can be facilitated.

Further, since the solar cell 7 is attached so as to avoid the viewing window 2a of the case 2, the inclination monitoring is performed while the solar cell 7 is attached to the peripheral surface of the case 2. There is no inconvenience that adversely affects the adjustment of the mounting angle of the device 1.

The movable electrode of the tilt sensor 2 is provided with a metal ball 19 functioning as an electrode and a weight, and the metal ball 19
And the fixed electrode is
Since the metal ball 19 is formed by the metal ring 21 surrounding the metal ball 19 at a predetermined interval, the structure of the tilt sensor 3 can be simplified as much as possible. As a result, the cost of the tilt monitoring device 1 can be reduced. Not only can it be done, but it can also contribute to improved durability.

In addition, since various metal rings 21 having different inner diameters are prepared and the detection set angle of the inclination sensor 3 is changed based on the replacement of the metal ring 21, the detection angle can be set according to the monitored object. It can be done easily.

Further, since the inclination monitoring device 1 notifies the inclination change of the object to be monitored using the notification lamp 4, the inclination detection state of the inclination monitoring device 1 can be confirmed from a distant point. As a result, the patrol work of the inclination monitoring device 1 is not allowed to be facilitated, and the safety of the patrol work can be improved.

Further, since the plurality of light emitting diodes LED constituting the notification lamp 4 are arranged at predetermined intervals on the inner peripheral portion of the transparent cylindrical resin pipe 22, the inclination detecting state of the inclination monitoring device 1 is determined. Can be confirmed from multiple directions, and the notification lamp 4 can be protected by using the case body 2.

Further, the inclination monitoring device 1 constantly turns on or blinks the notification lamp 4, so that the position and the inclination detection state of the inclination monitoring device 1 cannot be easily confirmed even at night. There is an advantage that abnormality of the inclination monitoring device 1 can be determined based on the turning off of the lamp 4.

Immediately after the inclination sensor signal changes from OFF to ON, a confirmation timer is set and the flashing state of the notification lamp 4 is maintained until the confirmation timer elapses. It is possible to improve the reliability of the tilt monitoring device 1 by eliminating a noise-like notification operation based on an earthquake or the like.

As shown in FIG. 6, a transparent second viewing window 2b is formed at the bottom of the case body 2 so that the distance between the metal ball 19 and the metal ring 21 can be seen from the viewing window 2b. In this case, the distance can be visually observed directly from the position directly below or through the mirror 24, so that the mounting angle adjustment accuracy can be improved.

Next, a second embodiment of the present invention will be described with reference to the drawings. However, the main difference from the first embodiment lies in the inclination change detecting means, and the description and illustration of other parts are omitted. In the drawings, reference numeral 3B denotes a contact-type inclination sensor which constitutes the inclination change detection means of the second embodiment.
5, while the fixed electrode is
A metal ring 27 surrounding the metal wire 26 at a predetermined interval is provided, and the detection set angle θ of the tilt sensor 3 is set based on the vertical position adjustment of the metal ring 27 (or the metal wire 26).
Is to be adjusted. And in this one,
A guide rod 28 is provided on a guide portion 27a of a metal ring 27 that is slidably guided up and down along the guide rod 28.
The screw rod 29 parallel to the screw rod 29 is screwed, so that the vertical position of the metal ring 17 is changed by a simple operation such as turning the screw head 29a of the screw rod 29 from the outside, and the detection set angle θ of the inclination sensor 3B is changed. There is an advantage that it can be adjusted steplessly.

Next, a third embodiment of the present invention will be described with reference to the drawings. However, the main difference from the first embodiment lies in the inclination change detecting means, and the description and illustration of other parts are omitted. In the drawings, reference numeral 30A denotes a photoelectric displacement sensor (non-contact displacement sensor) constituting the inclination change detecting means of the third embodiment.
A is a transmission type photointerrupter in which a light emitting device 31A such as an infrared diode and a light receiving device 32A such as a phototransistor are opposed to each other at a predetermined interval.

On the other hand, reference numeral 33 denotes a pendulum body suspended from the case body 2. The pendulum body 33 has a substantially circular flange portion 33a in a plan view on its outer peripheral portion.
A plurality of the photoelectric displacement sensors 30A are arranged at predetermined intervals in the circumferential direction in the vicinity of the outer edge of the sensor. When the case body 2 is tilted due to a change in the tilt of the monitored object, the flange portion 33a of the pendulum body 33 is relatively displaced with respect to the case body 2 and any one of the photoelectric displacement sensors 30A.
Light-receiving device 3 associated with the light path cutoff to cut off the light path of
The change in the inclination and the direction of the inclination of the case body 2 can be detected based on the output change of 2A. That is, since the photoelectric displacement sensor 30A detects the relative displacement of the pendulum body 33 with respect to the case body 2 in a non-contact manner,
The reliability and accuracy of the tilt monitoring device 1 can be improved by preventing detection errors due to contact oxidation, dust adhesion, chattering, and the like, and the tilt direction of the case body 2 can be detected. More detailed tilt change information can be reported as compared with the case where only the presence or absence of a change is detected.

In the third embodiment, a pair of photoelectric displacement sensors 30A are arranged in a distributed manner on the X-axis and the Y-axis passing through the center point of the pendulum 33, and any one of the photoelectric displacement sensors 30A is disposed. When the sensor 30A detects the displacement of the pendulum body 33, the inclination change and the inclination direction of the case body 2 are determined with reference to the detection signal of the photoelectric displacement sensor 30A disposed on the other side of the axis. . That is, in a state where the pendulum body 33 is shaking due to a sudden change in the inclination of the case body 2, an output change occurs alternately with a pendulum cycle in the pair of photoelectric displacement sensors 30A arranged coaxially. Therefore, the ratio between the detection times t1 and t2 in each of the photoelectric displacement sensors 30A is calculated, and the change in the tilt and the tilt direction of the case body 2 are determined based on the calculation results.

Next, a fourth embodiment of the present invention will be described with reference to the drawings. However, the main difference from the first embodiment lies in the inclination change detecting means, and the description and illustration of other parts are omitted. In the drawings, reference numeral 30B denotes a photoelectric displacement sensor that constitutes a tilt change detecting unit according to the fourth embodiment. The photoelectric displacement sensor 30B includes a light emitting device 31B such as an infrared diode and a light receiving device such as a phototransistor. 32B with a predetermined inclination angle.

On the other hand, reference numeral 34 denotes a pendulum body suspended from the case body 2, and a pendulum body 2 is provided at the bottom of the pendulum body 34.
A circular reflecting portion 34a having a center point at the center of a circle and a non-reflecting portion 34b extending around the reflecting portion 34a are formed, and the photoelectric displacement sensor 30
B is provided, and the initial reflection point of the infrared light emitted from the light emitting device 31B of the photoelectric displacement sensor 30B is set so as to coincide with the center point of the reflection portion 34a. Then, in a state where the case body 2 maintains a substantially horizontal posture,
The infrared light emitted from the light emitting device 31B is
When the case body 2 is tilted due to a change in the tilt of the monitored object while the light is reflected by the light receiving device 32B and incident on the light receiving device 32B, the infrared light emitted from the light emitting device 31B is emitted relative to the pendulum body 34. The non-reflective portion 34b is hit by the slight displacement and does not enter the light receiving device 32B, so that a change in the inclination of the case body 2 can be detected based on a change in the output of the light receiving device 32B. That is,
The photoelectric displacement sensor 30 </ b> B is the case body 2 of the pendulum body 33.
Is detected in a non-contact manner, the detection failure due to oxidation of contacts, adhesion of dust, chattering, etc. can be prevented, and the reliability and accuracy of the tilt monitoring device 1 can be improved. Since the change in the inclination of the case body 2 can be detected by the photoelectric displacement sensor 30B, there is an advantage that the structure can be simplified, the number of parts can be reduced, the detection circuit can be simplified, the cost can be reduced, and the like.

Next, a fifth embodiment of the present invention will be described with reference to the drawings. However, since the main difference from the first embodiment is the inclination change notification means, the description and illustration of other parts are omitted. Now, in the drawing, 35 is an output terminal provided in the inclination monitoring device 1, and the output terminal 35 is
When the inclination sensor 3 (inclination change detecting means) detects a change in the inclination of the case body 2, a predetermined inclination change notification signal is output to the outside.

On the other hand, reference numeral 36 denotes a light emitting unit (external alarm device) in which a plurality of light emitting devices (light emitting diodes) 37 are incorporated.
The light emission driving circuit 38 of the present embodiment inputs a tilt change notification signal from the output terminal 35 of the tilt monitoring device 1 installed at another location, and controls the light emission. The light emission of the light emitting unit 36 is controlled according to the signal. That is, when the tilt monitoring device 1 is installed at a location that cannot be seen from the monitoring location, the light emitting unit 36 can be installed at another location with good visibility, and the light emitting unit 36 can notify the change in tilt of the monitored object. It has become. It is needless to say that the external alarm device that performs the notification operation based on the inclination change notification signal is not limited to the above-described one. For example, a rotation indicator lamp, a siren, a wireless transmitter, or the like may be operated.

Next, a sixth embodiment of the present invention will be described with reference to the drawings. However, since the main differences from the first embodiment are the mounting mechanism (fixing means) and the mounting method, description and illustration of other parts are omitted. Well, in the drawing,
Reference numeral 39 denotes a mounting mechanism for mounting the tilt monitoring device 1 on the monitored object. The mounting mechanism 39 includes a first mounting plate 40 fixed to the monitored object using anchor bolts and the like, Mounting angle coarse adjustment mechanism 4 on mounting plate 40
1 and a mortar container (recess) 43 provided integrally with the second mounting plate 42. And mortar container 4
The mortar 44 is poured into the mortar 3, and the mortar 4
No. 4 is low-viscosity and quick-curing, so that it is quickly cured in a state where the surface is substantially horizontal.

Numeral 45 denotes a floating plate on which a female side 46a of a connector 46 (inclination unit for attaching a tilt monitoring device) is mounted on the upper surface in advance. The floating plate 45 is a floating member such as styrene foam floating on a mortar 44 in an uncured state. When the mortar 44 is in a hardened state, the mortar 44 is fixed substantially horizontally by the mortar 44. That is,
When mounting the tilt monitoring device 1 in a horizontal posture on the monitored object, the mortar 44 is poured into the mortar container 43 of the mounting mechanism 39 fixed to the monitored object, and the floating plate 45 is placed on the mortar 44 in an uncured state. Floating mortar 44
Waiting for the hardening of
Floating plate 45 on mortar 44 in an uncured state
The inclination monitoring device 1 can be leveled out by an easy operation that allows the inclination to be floated. As a result, the mounting operation of the inclination monitoring device 1 can be simplified as compared with a case where all the leveling is performed mechanically. Has become.

Reference numeral 46b denotes a male side of a connector 46 provided in advance at the bottom of the inclination monitoring device 1,
b is constituted by a plurality of (for example, three) screw shafts projecting downward, while the female side 46a is constituted by a rotatable long nut projecting upward from the floating plate 45. The female side 46a and the male side 46b of the connector 46 are
The female side 46a is aligned so as to screw together.
The tilt monitoring device 1 is screwed into each other by the turning operation of
5, the inclination of the inclination monitoring device 1 is finely moved according to the amount of screwing of the male side 46b with respect to the female side 46a, so that the mounting angle of the inclination monitoring device 1 can be finely adjusted at the connector 46. Has become. That is, the floating plate 45
After the inclination monitoring device 1 is attached to the cradle, the attachment angle of the inclination monitoring device 1 is finely adjusted by the connector 46 (attachment angle fine adjustment mechanism) interposed between the floating plate 45 and the inclination monitoring device 1. In addition, the leveling error caused by the floating plate 45 can be easily corrected, and as a result, it is possible to provide a mounting method having both good mounting workability and high mounting accuracy.

Reference numeral 47 denotes a level attached to the upper part of the inclination monitoring device 1. The level 47 is formed by enclosing a liquid and bubbles K in a sealed case having a transparent portion on the upper surface. By observing the position of the bubble K with respect to the circular mark H applied to the transparent portion, the mounting angle of the inclination monitoring device 1 can be confirmed,
By aligning the bubble K with the center of the reference line H, the inclination monitoring device 1 can be leveled out.

Next, a seventh embodiment of the present invention will be described with reference to the drawings. However, description and illustration of the configuration common to the first embodiment is omitted. In the drawings, reference numeral 48 denotes a tilt monitoring device according to the seventh embodiment. The tilt monitoring device 48 includes a tilt change detecting means such as the tilt sensor 3 and a detection signal or a detection signal of the tilt change detecting means. A tilt change notification means for outputting a tilt change notification signal corresponding to the alarm lamp 4 and the control board 5 in order to provide a low-cost tilt monitoring device 48 specialized in tilt change detection and tilt change notification signal output. , The storage battery 6, the solar cell 7, etc. are omitted.

On the other hand, 49 is a centralized monitoring device capable of inputting a tilt change notification signal from a plurality of tilt monitoring devices 48,
The control unit 50 incorporated in the centralized monitoring device 49 inputs a tilt change notification signal from the tilt monitoring devices 48 installed at a plurality of locations, and activates the collective alarm device 51 (rotating light, siren, etc.) based on the input signal. It is configured to operate. In other words, since a plurality of tilt monitoring devices 48 can be systematized to perform tilt monitoring over a wide area in a lump, it is not necessary to perform individual patrol work of the tilt monitoring devices 48, and it is possible to reduce monitoring personnel and monitoring costs. Rather, it is possible to obtain wide-range tilt change information in real time and respond quickly. In addition, since tilt changes at multiple locations are collectively alarmed by light or voice, a plurality of tilt monitoring devices 48 individually Recognition of a warning can be made quicker and easier than when a warning is issued. In the present embodiment, the connection between the inclination monitoring device 48 and the centralized monitoring device 49 is made by wire via a cable, but it is also possible to connect wirelessly using various communication means.

Reference numeral 52 denotes a transmitting device connected to the centralized monitoring device 49.
The inclination change information collected by 9 is transmitted to a monitoring center in a remote place by wire (telephone line or the like) or wirelessly.
In other words, a change in the inclination of the object to be monitored can be monitored in real time at a remote monitoring center, so that even a round trip operation of the centralized monitoring device 49 is unnecessary, and as a result, monitoring personnel and monitoring costs are further reduced. Not being able to do so, it is possible to build a large-scale tilt monitoring network.

A large storage battery 53 supplies power to the centralized monitoring device 49 and the like.
Is charged by a solar cell 54 having a large concentrator, so that when installing the centralized monitoring device 49, the installation cost of the power cable is not required and the installation cost can be reduced. There is an advantage that the centralized monitoring device 49 can be installed even in a place where it is difficult to secure a power supply.

Next, an eighth embodiment of the present invention will be described with reference to the drawings. However, description and illustration of the configuration common to the first embodiment is omitted. In the drawings, reference numeral 55 denotes an inclination monitoring device according to the eighth embodiment. A case body 56 forming an outer shell of the inclination monitoring device 55 includes an inclination sensor 57 for detecting a change in inclination of the monitored object. A control unit 58 including a microprocessor, a storage battery 59 for supplying power to each unit, and a solar cell 6 for charging the storage battery 59
0, a notification lamp 61 composed of a light emitting diode and the like are incorporated. In the present embodiment, the notification lamp 61 is provided as the tilt change notification means. However, a configuration may be adopted in which a tilt change notification signal is output and an external alarm device issues a warning. Further, in the present embodiment, the storage battery 59 charged by the solar battery 60 is used as a power source, but it is also possible to operate using a battery such as a lithium battery as a power source.

Reference numeral 62 denotes a magnet plate attached to the bottom and back of the inclination monitoring device 55. The magnet plate 62 is magnetically attached to a metal member attached to the object to be monitored. The monitoring device 55 is fixed to the object to be monitored. That is, since the tilt monitoring device 55 of the present embodiment is assumed to be used simply for the purpose of preventing a secondary disaster at a restoration site such as a landslide, the pile monitoring device 55 is mounted around the restoration site (top portion). The magnet plate 62 is employed as a fixing means so that the metal member can be easily attached to a metal member.

The tilt sensor 57 is a general-purpose analog tilt sensor that detects a change in liquid level due to the tilt of the tilt monitoring device 1 as a change in capacitance using a capacitor plate. It is configured to detect the inclination with a predetermined resolution and output the inclination change as a voltage change or a pulse width change.

On the other hand, on the input side of the control unit 58, a tilt sensor 57, a function switch 63, and a mode switch 6
4 and the like are connected via a predetermined input interface circuit, while an output lamp is connected to a notification lamp 61 and the like via a predetermined output interface circuit. That is, the control unit 58 performs “preset”, “X inclination monitoring”, “Y inclination monitoring” and “inclination change notification” executed in the inclination monitoring mode, and “set deviation switching” executed in the setting switching mode. The control routine is stored and held in advance.
The control contents of each control routine will be described based on the flowchart.

In the “preset”, the operation (OFF → ON) of the function switch 63 is determined. If the determination is YES, the tilt sensor 57 is added to the X-direction tilt reference data XA.
Is set, and the current Y-direction tilt detection data YB of the tilt sensor 57 is set as the Y-direction tilt reference data YA.

In the "X inclination monitoring", first, a deviation between the inclination reference data XA and the current inclination detection data XB is set in the detection deviation data XC, and then the absolute value of the detection deviation data XC and a plurality of set deviations are set. Comparison with data XD1 to XD3 (for example, 0.1 °, 0.2 °, 0.3 °) is performed. That is, since the set deviation data XD1 to XD3 are set in advance so as to increase stepwise, the amount of change in inclination is determined stepwise, and the absolute value of the detection deviation data XC is determined here. Is smaller than the set deviation data XD1, the X inclination flag is set to “0”.
If the difference is smaller than the set deviation data XD2 and smaller than the set deviation data XD3, the X inclination flag is set to "2". Further, when the difference is equal to or larger than the set deviation data XD3, "3" is set to the X inclination flag. The control concept of “Y tilt monitoring” is “X
This is almost the same as “tilt monitoring”, and the description of the flowchart is omitted.

In the "inclination change notification", first, the X inclination flag and the Y inclination flag are compared, and the larger flag value is set to a variable L. When the variable L is "0", the notification lamp 61 is turned on or off continuously. When the variable L is "1", the notification lamp 61 is turned on at the period S1.
(For example, 1 second), and when it is "2", the notification lamp 61 is made to flash at a period S2 (for example, 0.7 seconds). When it is "3", the notification lamp 61 is turned on. It blinks at a cycle S3 (for example, 0.3 seconds).

In the "setting deviation switching", first, the operation of the function switch 63 is determined, and if the determination is YES, the variable n is incremented (if the variable n is 4, 1 is set). When the variable n is “1”, the set deviation data XD1 (= YD1), XD2 (= YD2),
XD3 (YD3) has "0.1", "0.2",
When "0.3" is set, the notification lamp 61 blinks at the cycle S1, and when the variable n is "2", XD
1 (= YD1), XD2 (= YD2), XD3 (YD
3) are set to "0.5", "1.0", and "1.5", respectively, and the notification lamp 61 is made to blink at a cycle S2. When the variable n is "3", XD1 ( = YD
1), “1.0”, “2.0”, and “3.0” are set in XD2 (= YD2) and XD3 (YD3), respectively, and the notification lamp 61 blinks at a cycle S3. I have. In the setting switching mode, the notification lamp 61 blinks in any situation. Therefore, when the tilt monitoring device 55 is installed, a check is made to confirm whether the blinking of the notification lamp 61 can be visually checked from a desired place. It can also be used as a mode.

That is, in the eighth embodiment, an analog inclination sensor 57 for detecting the inclination angle of the inclination monitoring device 55 at a predetermined resolution is employed, and the initial detection data of the inclination sensor 57 is set based on a preset command. The manufacturing process is simplified by using a general-purpose inclination sensor to determine the inclination change based on the comparison between the stored detection and the deviation of the current detection data from the stored and retained initial detection data and a preset deviation. Has the advantage of being able to
Since it is not necessary to install the tilt monitoring device 55 in a horizontal posture, the installation work can be greatly simplified.

[Brief description of the drawings]

FIG. 1A is a plan view of an inclination monitoring device, and FIG. 1B is a side view.

2A is a side view of the mounting mechanism, and FIG. 2B is a plan view of a main part.

3A is a schematic perspective view of a tilt sensor, and FIG. 3B is an explanatory diagram of a detection set angle.

FIG. 4 is a block circuit diagram of the tilt monitoring device.

FIG. 5 is a flowchart showing “tilt monitoring control”.

FIG. 6 is a schematic side view of the tilt monitoring device showing the operation of the second viewing window.

FIG. 7A is a schematic perspective view showing an inclination sensor according to a second embodiment, and FIG. 7B is an explanatory diagram of a detection set angle.

FIG. 8 is a perspective view showing a setting angle adjusting mechanism according to a second embodiment.

FIG. 9 is a schematic sectional view of an inclination monitoring device (horizontal) showing a third embodiment.

FIG. 10 is a tilt monitoring device (right tilt) showing a third embodiment;
FIG.

FIG. 11 is a tilt monitoring device showing the third embodiment (left tilt).
FIG.

12A is a schematic cross-sectional view of a tilt monitoring device according to a fourth embodiment, and FIG. 12B is an enlarged bottom view of a pendulum body.

FIG. 13 is a block diagram showing a fifth embodiment.

FIG. 14 is a side sectional view of an attachment mechanism according to a sixth embodiment.

FIG. 15 is a diagram illustrating the operation of the level.

FIG. 16 is a block diagram showing a seventh embodiment.

FIG. 17 is a schematic sectional view of an inclination monitoring device according to an eighth embodiment.

FIG. 18 is a block diagram illustrating input and output of a control unit.

FIG. 19 is a flowchart showing a main routine.

FIG. 20 is a flowchart showing “preset”.

FIG. 21 is a flowchart showing “X tilt monitoring”.

FIG. 22 is a flowchart showing “Y tilt monitoring”.

FIG. 23 is a flowchart showing “tilt change notification”.

FIG. 24 is a flowchart showing “setting deviation switching”.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 tilt monitoring device 2 case body 2 a viewing window 3 tilt sensor 4 notification lamp 5 control board 6 storage battery 7 solar cell 8 mounting mechanism 9 first mounting plate 10 mounting coarse adjustment mechanism 11 second mounting plate 12 mounting angle fine adjustment mechanism 13 Third mounting plate 19 Metal ball 20 Metal wire 21 Metal ring 22 Cylindrical resin pipe

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Kazuhiro Yamakawa 888-1 Kazuwada, Tsumanuma-cho, Osato-gun, Saitama Prefecture Azuma Systems Co., Ltd. 1 Inside Azuma Systems Co., Ltd. (72) Inventor Hiroshi Sano 1249 Yoshida-cho, Totsuka-ku, Yokohama-shi, Kanagawa Prefecture (72) Inventor Hiroshi Osawa 1-2-6, Satsukicho, Kameda-cho, Nakagabara-gun, Niigata (72) Inventor Yoshida Akira 2-9-8, Kamishineicho, Niigata City, Niigata Prefecture

Claims (30)

[Claims] 1. A case fixed to an object to be monitored via a fixing means, a tilt change detecting means for detecting a change in tilt of the case, and a tilt change in response to a detection signal from the tilt change detecting means. And an inclination change informing means for informing the user of the inclination. 2. The tilt change detecting means according to claim 1, wherein the tilt change detecting means is constituted by using a pendulum type movable electrode which always faces the direction of gravity, and a fixed electrode which detects a tilt change based on contact with the movable electrode. An inclination monitoring device, characterized in that: 3. The movable electrode according to claim 2, wherein the movable electrode includes a metal sphere functioning as an electrode and a weight, and a metal wire for suspending the metal sphere, while the fixed electrode includes a metal sphere at a predetermined interval. An inclination monitoring device comprising a metal ring that surrounds and surrounds. 4. The tilt monitoring device according to claim 3, wherein the detection set angle of the tilt change detection means is adjusted based on replacement of a metal ring or a metal ball having a different diameter. 5. The method according to claim 2, wherein the movable electrode is constituted by a metal wire suspending the weight, while the fixed electrode is constituted by a metal ring surrounding the metal wire at a predetermined interval. Characteristic tilt monitor. 6. The tilt monitoring device according to claim 5, wherein the detection set angle of the tilt change detection means is adjusted based on the vertical position adjustment of the metal ring or the metal wire. 7. The tilt change detecting means according to claim 1, wherein the tilt change detecting means uses a pendulum body which always faces the direction of gravity and a non-contact type displacement sensor which detects a relative displacement of the pendulum body with respect to the case body in a non-contact manner. An inclination monitoring device, comprising: 8. The non-contact displacement sensor according to claim 7, wherein the non-contact displacement sensor is a photoelectric displacement sensor that includes a light emitting device and a light receiving device, and detects a displacement of a pendulum body based on a light receiving state of the light receiving device. Characteristic tilt monitor. 9. A penetrating pendulum body according to claim 8, wherein a substantially circular flange portion is formed on the outer peripheral portion of the pendulum body, and a transmissive type flange is provided at a predetermined circumferential distance in the vicinity of an outer edge portion of the flange portion. An inclination monitoring device, comprising a plurality of photoelectric displacement sensors, and judging a change in inclination of a case body based on detection of a position of a flange by each photoelectric displacement sensor. 10. A method according to claim 8, wherein a reflecting portion and a non-reflecting portion are formed at the bottom of the pendulum, and a reflection-type photoelectric displacement sensor is disposed at a position facing the bottom of the pendulum. An inclination monitoring device for determining a change in inclination of a case body based on detection of a position of a pendulum body by a displacement type sensor. 11. The tilt change detecting means according to claim 1, wherein the tilt change detecting means comprises an analog tilt sensor for detecting a tilt angle of the case body at a predetermined resolution, and sets initial detection data of the tilt sensor to a preset command. A tilt monitoring device that stores and retains the data based on the detected data and determines a change in the tilt of the case body based on a comparison between a deviation of the current detection data from the stored and retained initial detection data and a preset deviation. 12. The tilt monitoring device according to claim 1, wherein the case body is formed of a transparent resin member. 13. The tilt monitoring device according to claim 1, wherein the tilt change notification means notifies the tilt change only when the tilt change detection state continues for a predetermined time. 14. The tilt monitoring device according to claim 1, wherein the tilt change notification unit notifies the tilt change using a light emitting device. 15. The case according to claim 14, wherein the case body is formed of a transparent resin member having a cylindrical shape, and a plurality of light emitting devices are arranged at predetermined intervals on an inner peripheral portion of the case body. Tilt monitoring device. 16. The inclination monitoring device according to claim 15, wherein a plurality of light emission patterns of the light emitting device are set, and the light emission pattern is switched based on the inclination change detection. 17. The tilt monitoring device according to claim 1, wherein the tilt change notification means outputs a tilt change notification signal to the outside via an output terminal. 18. The tilt monitoring device according to claim 17, wherein the tilt change notification means outputs a tilt change notification signal to an external alarm device installed at another location. 19. The tilt monitoring device according to claim 1, wherein a battery for operating each means is incorporated in the case body. 20. The tilt monitoring device according to claim 1, wherein a storage battery for operating each means and a solar battery for charging the storage battery are incorporated in the case body. 21. The tilt monitoring device according to claim 20, wherein the case body has a cylindrical shape, and a flexible film-shaped solar cell is attached to a peripheral surface of the case body. 22. The case body according to claim 20, wherein the case body is formed of a transparent resin member having a cylindrical shape, and flexibility is provided on a peripheral surface of the case body so as to avoid a viewing window for viewing the inside of the case body. A tilt monitoring device comprising a film-shaped solar cell attached thereto. 23. The fixing device according to claim 1, wherein the fixing means includes a coarse mounting angle adjusting mechanism for coarsely adjusting the mounting angle of the case body, and a fine mounting angle adjusting mechanism for finely adjusting the mounting angle of the case body. A tilt monitoring device. 24. The tilt monitoring device according to claim 1, further comprising a level provided on an upper portion of the case body for visually determining an attachment angle of the case body. 25. The device according to claim 1, wherein the tilt monitoring device is installed at a plurality of locations, and a centralized monitoring device capable of inputting a tilt change notification signal from the plurality of tilt monitoring devices is installed. And a tilt change batch notification unit that collectively reports a tilt change in accordance with a detection signal from each tilt monitoring device. 26. The tilt monitoring device according to claim 25, wherein the tilt change batch notification means is an alarm device for warning the tilt change by light or voice. 27. The tilt monitoring device according to claim 25, wherein the tilt change batch notification means is a transmission device that transmits the tilt change information to a monitoring center at a remote location by wire or wirelessly. 28. The tilt monitoring device according to claim 25, wherein the centralized monitoring device operates using a storage battery charged by a solar cell as a power supply. 29. When the inclination monitoring device is mounted on the object to be monitored in a horizontal position, a mortar of a quick-setting property is provided in a recess formed in the object to be monitored or a recess of a fixing member fixed to the object to be monitored. A method of mounting a tilt monitoring device, comprising: after pouring, floating a floating member on an uncured mortar and waiting for the mortar to harden, and then mounting a tilt monitoring device on the floating member. 30. A tilt adjusting device according to claim 29, wherein after the tilt monitoring device is mounted on the floating member, the mounting angle of the tilt monitoring device is finely adjusted by a mounting angle fine adjustment mechanism interposed between the floating member and the tilt monitoring device. A method of mounting a tilt monitoring device, comprising: