JP7563364B2 - Building tilt abnormality inspection system - Google Patents

Description

The present invention relates to a building tilt abnormality inspection system, and more specifically, to a building tilt abnormality inspection system that uses a tilt sensor attached to a building to inspect whether or not there is a tilt abnormality in the building.

For example, when a large earthquake occurs, it is necessary to inspect buildings for abnormal tilt in order to determine whether people left behind in damaged buildings can be rescued and whether the buildings can be used safely. However, it is difficult to predict when such a large earthquake will occur, and buildings may develop abnormal tilt due to changes over time. For this reason, in order to continuously inspect buildings for abnormal tilt, building abnormal tilt inspection systems are sometimes introduced that install tilt sensors in buildings and continuously receive signals transmitted from the tilt sensors to inspect for abnormal tilt.

As an example of the above-mentioned building tilt abnormality inspection system, Patent Document 1 discloses an invention of an apparatus for inspecting tilt abnormalities of utility poles (buildings). As shown in FIG. 8, this tilt abnormality inspection apparatus 100 is an apparatus in which a tilt detection unit 100a is fixedly arranged on the top of a utility pole and an identification display unit 100b is configured to be portable, and identifies and detects tilt abnormalities for each utility pole. The tilt detection unit 100a has a conductive ball 102 in a hemispherical container 101 that opens upward, and has one detection coil 103 in the center of the bottom of the hemispherical container 101. The detection coil 103 is connected to an oscillation circuit 104, and the oscillation circuit 104 is connected to a battery 105 for operating it. Oil 106 that provides damping to the movement of the conductive ball 102 is sealed in the hemispherical container 101. The portable identification display unit 100b is composed of a receiver 108 for weak electromagnetic waves 107 emitted from the detection coil 103, an identification control unit 109, a display unit 110, a battery 111, a GPS receiver 112, a memory 113, etc.

The tilt abnormality inspection device 100 operates as follows. That is, when the tilt detection unit 100a tilts, the conductive ball 102 rolls in the hemispherical container 101, and the distance between the conductive ball 102 and the detection coil 103 increases, so the inductance of the detection coil 103 increases. The oscillation circuit 104 continues to oscillate as long as there is current supplied from the battery 105. Since the oscillation frequency depends on the inductance of the detection coil 103, the oscillation frequency decreases in response to the tilt of the tilt detection unit 100a. The oscillation output from the oscillation circuit 104 flows through the detection coil 103 and leaks from the detection coil 103 as weak electromagnetic waves 107 downward to the utility pole. The receiving unit 108 of the identification display unit 100b then receives the weak electromagnetic waves 107 and pulses them. The identification control unit 109 receives the pulse output from the receiving unit 108, counts the pulse intervals in a pulse train with very short time intervals, identifies the frequency, and identifies whether or not there is an abnormality in the tilt of the utility pole, displaying this on the display unit 110 so that the maintenance manager can be aware of it.

JP 2004-147374 A

However, in the utility pole tilt abnormality inspection device 100 described in the above Patent Document 1, as described above, when the tilt detection unit 100a tilts, the conductive ball 102 rolls inside the hemispherical container 101, and the inductance of the detection coil 103 changes, thereby identifying the presence or absence of a tilt abnormality in the utility pole. Therefore, in order to maintain the reliability of the inspection in the above tilt abnormality inspection device 100, it is necessary to periodically check that the conductive ball 102 reliably rolls inside the hemispherical container 101 in response to the tilt of the tilt detection unit 100a. However, because the tilt detection unit 100a is fixed to the top of the utility pole (high up on a building), there is a problem that the above inspection is dangerous, time-consuming, and laborious.

In addition, in the tilt abnormality inspection device 100, the oscillator circuit 104 continues to oscillate at all times while current is being supplied from the battery 105, and regardless of the degree of tilt of the tilt detection unit 100a, the receiver unit 108 receives the weak electromagnetic waves 107 leaking from the detection coil 103, and the identification control unit 109 receives the pulse output of the weak electromagnetic waves 107 from the receiver unit 108, counts the pulse intervals as a pulse train with a very short time interval, identifies the frequency, and identifies the presence or absence of tilt abnormality of the utility pole and displays it on the display unit 110. As a result, there were problems with the circuit of the tilt abnormality inspection device 100 being complicated, high equipment costs, and increased power consumption.

The present invention has been made to solve the above problems, and aims to provide a building inclination abnormality inspection system that can safely, simply, and at low cost inspect buildings for inclination abnormalities and the quality of inclination sensors.

In order to achieve the above object, the building tilt abnormality inspection system according to the present invention has the following configuration.
(1) A system for inspecting an abnormal inclination of a building, comprising: a tilt detection unit that is attached to a high point of a building and detects the degree of inclination of the building; and an identification display unit that receives a signal from the tilt detection unit and displays an abnormal inclination of the building,
The tilt sensor includes a pair of upper and lower electrodes and a conductive ball inserted between the electrodes, and outputs an ON signal when the building is tilted abnormally and the conductive ball comes into contact with the electrodes.
a transmission unit connected to the tilt sensor and configured to transmit an abnormal tilt signal to the identification display unit at a predetermined time interval when the ON signal is output and a normal tilt signal to the identification display unit at a predetermined time interval when the ON signal is not output,
The inclination sensor is housed in a protective case and arranged horizontally on a receiving plate of a fixed base fixed to the building, and the protective case is connected to the fixed base via a hinge so that it can rotate in the vertical direction.

In the present invention, the tilt detection unit is equipped with a tilt sensor having a pair of upper and lower electrodes and a conductive ball inserted between the two electrodes, which outputs an ON signal when the building tilts abnormally and the conductive ball comes into contact with both electrodes, and a transmission unit connected to the tilt sensor and transmitting an abnormal tilt signal to the identification display unit at a predetermined time interval when the ON signal is output, and a normal tilt signal when the ON signal is not output, thereby making it possible to simplify the structure of the tilt sensor and the circuit configuration of the transmission unit and reduce equipment costs. Also, by having the transmission unit transmit the abnormal tilt signal or normal tilt signal intermittently at a predetermined time interval, power consumption can be reduced.

In addition, the tilt sensor is housed in a protective case and arranged horizontally on the receiving plate of a fixed base fixed to the building, which reduces the possibility of the conductive balls and electrodes in the tilt sensor coming into contact with moisture, dust, pollutants, etc., causing malfunctions, and allows the tilt sensor to be arranged horizontally in a position that makes it easy to detect abnormal tilt of the building. This increases the reliability of the tilt sensor and ensures that abnormal tilt of the building can be detected.

In addition, the protective case is connected to the fixed base via a hinge so that it can rotate vertically. Therefore, even if the tilt detection unit is installed high up in a building, an inspection worker standing on the floor can easily check for malfunctions of the tilt sensor by pushing up the protective case from below using an inspection rod or the like to tilt the tilt sensor to an angle that causes an abnormal tilt of the building. Therefore, the above-mentioned inspection to check whether the tilt sensor is working properly can be performed safely, quickly, and without hassle.

Therefore, the present invention provides a building tilt anomaly inspection system that can safely, simply, and at low cost inspect buildings for tilt anomalies and the quality of tilt sensors.

(2) In the building tilt abnormality inspection system described in (1),
The tilt detection unit is characterized in that it is provided with a lighting device on the outer surface of the protective case that lights up when the building tilts abnormally and the conductive ball comes into contact with both electrodes.

In the present invention, the tilt detection unit is equipped with a lighting device on the outer surface of the protective case that lights up when the building is tilted to an abnormal state and the conductive ball comes into contact with both electrodes, so that when inspecting the tilt sensor, the inspector only needs to check whether the lighting device is on or not to check whether the tilt sensor is working properly. Therefore, there is no need to wait until the identification display unit receives the abnormal tilt signal from the transmission unit, which transmits at a specified time interval, and displays the abnormal tilt of the building. As a result, the inspection of the tilt sensor can be completed in an even shorter time.

(3) In the building tilt abnormality inspection system described in (1) or (2),
the tilt sensor comprises the conductive ball, a lower electrode whose upper end surface along which the conductive ball rolls is formed in a cone-like concave shape, and an upper electrode that is disposed opposite the lower electrode and comes into contact with the conductive ball when the lower electrode is tilted at an angle that causes an inclination abnormality in the building; and a spirit level is installed on an electrode support plate that supports the lower electrode;
The electrode support plate is connected to a lower portion of the protective case so that an angle of the electrode support plate can be adjusted.

In the present invention, the inclination sensor is composed of a conductive ball, a lower electrode along which the conductive ball rolls and whose upper end surface is formed in a conical concave shape, and an upper electrode that is disposed opposite the lower electrode and comes into contact with the conductive ball when the lower electrode is tilted at an angle that causes an abnormal tilt of the building. A spirit level is attached to the electrode support plate that supports the lower electrode, and the electrode support plate is connected to the lower part of the protective case so that the angle of the electrode support plate can be adjusted, so that the inclination sensor can be installed in the protective case while checking the spirit level. Therefore, even if there is variation in the levelness of the fixed base relative to the building, the inclination sensor can be installed with high precision relative to the building. As a result, inspections of abnormal tilt of buildings and the quality of the inclination sensor can be performed more easily and accurately.

(4) In the building tilt abnormality inspection system according to any one of (1) to (3),
The identification display unit is characterized by comprising a receiving unit that receives the abnormal tilt signal and the normal tilt signal transmitted from the transmitting unit, and a display unit connected to the receiving unit that displays the abnormal tilt of the building based on the abnormal tilt signal and the normal tilt signal.

In the present invention, the identification display unit includes a receiving unit that receives the abnormal tilt signal and normal tilt signal transmitted from the transmitting unit, and a display unit that is connected to the receiving unit and displays the abnormal tilt of the building based on the abnormal tilt signal and normal tilt signal. Therefore, the abnormal tilt signal and normal tilt signal transmitted from the transmitting unit can be displayed on the display unit without complex signal conversion such as pulsing. Therefore, the circuit configuration of the receiving unit and the display unit can be simple and simplified, and the display unit can be quickly displayed. As a result, the circuit configuration of the entire building abnormal tilt inspection system can be simplified, reducing both initial and running costs, and saving inspection time.

(5) In the building tilt abnormality inspection system according to any one of (1) to (4),
the tilt detector is attached to each of a plurality of support columns in the building, and the tilt abnormal signal and the tilt normal signal transmitted from the transmitter of each tilt detector include a position signal indicating a location of the support column in the building;
The identification display unit is characterized in that it displays the tilt abnormality of the building and the pass/fail of the tilt sensor for each location of the support unit based on the tilt abnormality signal and the tilt normal signal.

In the present invention, a tilt detection unit is attached to each of a number of support columns in a building, and the abnormal tilt signal and normal tilt signal transmitted from the transmission unit of each tilt detection unit include a position signal indicating the location of the support column in the building, and the identification display unit displays the abnormal tilt of the building and the pass/fail of the tilt sensor for each support column location based on the abnormal tilt signal and normal tilt signal, so that it is possible to quickly and accurately determine at which location in the building a tilt abnormality has occurred in the support column. In addition, the pass/fail of the tilt sensor of the tilt detection unit attached to the support column can be accurately determined for each location in the building. Therefore, it is possible to safely, simply, and more accurately inspect the abnormal tilt and the pass/fail of the tilt sensor for each location of the building.

The present invention provides a building tilt anomaly inspection system that can safely, simply, and at low cost inspect buildings for tilt anomalies and the quality of tilt sensors.

FIG. 1 is a schematic layout diagram of an example in which a building inclination abnormality inspection system according to an embodiment of the present invention is mounted on a support pillar of a factory building. FIG. 2 is a schematic diagram of the building inclination abnormality inspection system shown in FIG. 1 in a state in which the building is inclined at a predetermined inclination angle for inspection of the inclination sensor. 2 is a detailed cross-sectional view of a tilt detection unit in the building tilt abnormality inspection system shown in FIG. 1. 4 is an explanatory diagram of the tilt detection unit shown in Figure 3, where (A) shows a schematic cross-sectional view of the tilt sensor when it is arranged horizontally, and (B) shows a circuit configuration diagram of the tilt detection unit when the tilt sensor is arranged horizontally. An explanatory diagram of the tilt detection unit shown in Figure 3, where (A) shows a schematic cross-sectional view of the tilt sensor when the building is tilted in an abnormal tilt state, and (B) shows a circuit configuration diagram of the tilt detection unit when the tilt sensor is tilted in an abnormal tilt state of the building. 2 is a schematic configuration diagram of an identification display unit in the building inclination abnormality inspection system shown in FIG. 1 . 1. FIG. 4 is a schematic diagram showing a modified example of an identification display unit in the building inclination abnormality inspection system shown in FIG. FIG. 1 is a schematic diagram of a utility pole inclination abnormality inspection device described in Patent Document 1.

Next, a preferred example of a system for inspecting an abnormal tilt of a building according to an embodiment of the present invention will be described in detail with reference to the drawings. First, the configuration and operation method of a specific example of the system for inspecting an abnormal tilt of a building according to this embodiment will be described. In addition, a modified example of the identification display unit in the above specific example will be briefly described.

<Example of this building's tilt abnormality inspection system>
First, the configuration and operation method of a specific example of the building inclination abnormality inspection system according to the present embodiment will be described with reference to FIGS. 1 to 7. FIG. 1 shows a schematic layout diagram of an example in which the building inclination abnormality inspection system according to the present embodiment is attached to a support of a factory building. FIG. 2 shows a schematic configuration diagram of the building inclination abnormality inspection system shown in FIG. 1 in a state in which the inclination sensor is inclined at a predetermined inclination angle to inspect the inclination sensor. FIG. 3 shows a detailed cross-sectional view of the inclination detection unit in the building inclination abnormality inspection system shown in FIG. 1. FIG. 4 shows an explanatory diagram of the inclination detection unit shown in FIG. 3, where (A) shows a schematic cross-sectional view of the inclination sensor when it is arranged horizontally, and (B) shows a circuit configuration diagram of the inclination detection unit when the inclination sensor is arranged horizontally. FIG. 5 shows an explanatory diagram of the inclination detection unit shown in FIG. 3, where (A) shows a schematic cross-sectional view of the inclination sensor when it is inclined in a state where the building is inclined in an abnormal inclination, and (B) shows a circuit configuration diagram of the inclination detection unit when the inclination sensor is inclined in a state where the building is inclined in an abnormal inclination. FIG. 6 shows a schematic configuration diagram of the identification display unit in the building inclination abnormality inspection system shown in FIG. 1. FIG. 7 shows a schematic configuration diagram of a modified example of the identification display unit in the building inclination abnormality inspection system shown in FIG.

As shown in Figures 1 to 6, the building inclination abnormality inspection system 10 according to this embodiment is equipped with a tilt detection unit 1 that is attached to a high point of the building TM and detects the degree of inclination of the building TM, and an identification display unit 2 that receives a signal from the tilt detection unit 1 and displays an abnormal tilt of the building TM.

As shown in Figure 1, a fixed base KD is fixed to a specified height of the support column TMS supporting the roof TMY of the building TM, and the tilt detector 1 is attached to the fixed base KD. This building tilt abnormality inspection system 10 calculates the tilt angle at which the building TM becomes tilt abnormal based on the buckling strength of the support column TMS to which the tilt detector 1 is attached, and determines that the building TM is in a tilt abnormal state when the support column TMS is tilted at or above this tilt angle.

The height at which the tilt detection unit 1 is mounted is preferably about 2 to 3 meters above the floor surface FL. A certain height above the floor surface FL is necessary to detect abnormal tilt of the building TM, and this is because it is easy to install and does not get in the way of devices or transport vehicles inside the building TM. It is also preferable that the identification display unit 2 can be carried by the inspection worker M, or can be easily moved on a cart 3, etc.

As shown in Figures 2 to 5, the tilt detection unit 1 is equipped with a tilt sensor 11 having a pair of upper and lower electrodes 11b and a conductive ball 11a inserted between the electrodes 11b, and outputs an ON signal when the building TM tilts abnormally and the conductive ball 11a comes into contact with the electrodes 11b, and a transmission unit 12 connected to the tilt sensor 11 and transmitting an abnormal tilt signal S2 to the identification display unit 2 at predetermined time intervals when the ON signal is output from the tilt sensor 11, and transmitting a normal tilt signal S1 to the identification display unit 2 at predetermined time intervals when the ON signal is not output from the tilt sensor 11.

Here, the tilt sensor 11 has a pair of upper and lower electrodes 11b, a conductive ball 11a inserted between the electrodes 11b, an output unit 18 connected to the electrodes 11b, and a power supply unit 19 that supplies power to the output unit 18. When the building TM tilts abnormally and the conductive ball 11a comes into contact with the electrodes 11b, the tilt sensor 11 has a simple configuration that outputs an ON signal from the output unit 18, making it cheaper and more durable than the example in Patent Document 1, which has a detection coil, etc.

As shown in FIG. 5, the transmission unit 12 transmits an abnormal tilt signal S2 at a predetermined time interval when an ON signal is output from the tilt sensor 11, and as shown in FIG. 4, transmits a normal tilt signal S1 at a predetermined time interval when an ON signal is not output from the tilt sensor 11. This reduces the consumption of power supplied from the power supply unit 19, which is composed of a battery or the like, and is suitable for the abnormal tilt inspection system 10 of this building, which requires continuous inspection for a long period of time.

In addition, since the building TM generally undergoes gradual deformation over a long period of time, excluding deformation due to a large earthquake, etc., there is little need to constantly and continuously check whether the building TM is tilted abnormally. Therefore, the transmission cycle (predetermined time interval) of the transmitter 12 can be about 1 to 2 minutes, even taking into account deformation due to a large earthquake, etc., which is preferable in terms of saving power consumption.

In this way, with this building tilt abnormality inspection system 10, the structure of the tilt sensor 11 and the circuit configuration of the transmission unit 12 can be simplified, reducing the initial equipment costs, and the transmission unit 12 transmits the tilt abnormality signal S2 or the tilt normal signal S1 intermittently at a predetermined time interval, reducing power consumption as a running cost.

As shown in Figures 2 and 3, the inclination sensor 11 is stored in a protective case 14 and arranged horizontally on a receiving plate KD1 of a fixed base KD fixed to a building TM. Here, the protective case 14 is formed in a substantially rectangular shape and comprises a case body 142 that houses the inclination sensor 11 and a top cover 143 made of transparent resin that seals the case body 142, and the top cover 143 is formed so as to be detachable from the case body 142. A flat support plate 141 is connected to the lower end of the case body 142, and the inclination sensor 11 stored in the protective case 14 is arranged horizontally on the receiving plate KD1 of the fixed base KD via the support plate 141.

This reduces the possibility of malfunctions caused by the conductive ball 11a and electrode 11b of the tilt sensor 11 coming into contact with moisture, dust, pollutants, etc., and also makes it easy to position the tilt sensor 11 horizontally relative to the building TM. This increases the reliability of the tilt sensor 11 and extends the inspection cycle.

As shown in Figures 1 to 3, the protective case 14 is connected to a fixed base KD via a hinge HJ so that it can rotate vertically. Here, the fixed base KD consists of a receiving plate KD1 on which the support plate 141 of the protective case 14 is placed horizontally, and a fixing part KD2 that is fixed to the support part TMS, and the receiving plate KD1 has a through hole KD11 formed in the center of the contact area with the support plate 141 through which an inspection rod TB can be inserted. The hinge HJ connects one end of the support plate 141 to one end of the receiving plate KD1.

Therefore, even if the tilt detection unit 1 is installed at a high point on the building TM, an inspection worker M standing on the floor FL can easily inspect the tilt sensor 11 for malfunction by pushing up the protective case 14 from below using an inspection rod TB or the like, and tilting the tilt sensor 11 to the angle θ2 at which the tilt of the building TM becomes abnormal, thereby inspecting the tilt sensor 11 for malfunction. Therefore, the above-mentioned inspection of the tilt sensor 11 can be performed safely, quickly, and without hassle.

Therefore, with this building inclination abnormality inspection system 10, it is possible to provide a building inclination abnormality inspection system 10 that can safely, simply, and at low cost inspect the building TM for inclination abnormalities and the quality of the inclination sensor 11.

As shown in Figs. 3 to 5, the tilt detection unit 1 is preferably provided with a lighting device 17 on the outer surface of the protective case 14, which lights up when the building TM is tilted abnormally and the conductive ball 11a comes into contact with both electrodes 11b. Here, the lighting device 17 is attached, for example, to the side wall surface of the case body 142, and is attached in a position where an inspection worker M standing on the floor surface FL can easily check the lighting status of the lighting device 17. In addition, it is preferable that the lighting device 17 is an LED (light emitting diode) lighting device that has a long life and low power consumption.

By providing the lighting device 17, the inspection worker M only needs to check whether the lighting device 17 is on or off during the above inspection of the tilt sensor 11 to determine whether the tilt sensor 11 is in good condition. Therefore, there is no need to wait until the receiver 21 receives the tilt abnormality signal S2 from the transmitter 12, which transmits at a predetermined time interval, and the display 22 displays the tilt abnormality. As a result, the above inspection of the tilt sensor 11 can be completed in an even shorter time.

As shown in Figures 2 and 3, the tilt sensor 11 is composed of a conductive ball 11a, a lower electrode 112b whose upper end surface 112bs along which the conductive ball 11a rolls is formed in a cone-shaped concave shape, and an upper electrode 111b that is disposed opposite the lower electrode 112b and comes into contact with the conductive ball 11a when the lower electrode 112b is tilted at an angle θ2 that causes an abnormal tilt of the building TM. It is preferable that a spirit level 16 is installed on the electrode support plate 13 that supports the lower electrode 112b, and that the electrode support plate 13 is connected to the lower part 144 of the protective case 14 so that the angle can be adjusted.

As shown in Figures 3 to 5, an annular protrusion 111bt is formed on the outer periphery of the upper electrode 111b, protruding downward, and the annular protrusion 111bt comes into contact with the conductor ball 11a when the building TM is tilted at an angle θ2 that causes an abnormal tilt. The electrode support plate 13 is fastened to the lower part 144 of the protective case 14 by multiple screw members 151 while being biased upward by spring members 152, and is attached so that the angle can be adjusted.

In this case, the angle of the electrode support plate 13 can be adjusted while checking the spirit level 16 so that the inclination sensor 11 is in a horizontal position, and then the inclination sensor 11 can be installed in the protective case 14. Therefore, even if there is variation in the levelness of the fixed base KD relative to the building TM, the inclination sensor 11 can be installed with high precision relative to the building TM. As a result, it is possible to inspect the building TM for inclination abnormalities and the quality of the inclination sensor 11 more easily and accurately.

The inclination angle θ1 of the conically concave upper end surface 112bs is preferably slightly smaller than the angle θ2 at which the building TM becomes abnormally tilted. This is because when the building TM becomes inclined at the angle θ2 at which the building TM becomes abnormally tilted, the conductive ball 11a can move on the conically concave upper end surface 112bs of the lower electrode 112b, overcoming the rolling friction resistance. In addition, the conductive ball 11a and the electrode 11b are preferably surface-treated with the same material (for example, a surface treatment of gold + nickel, etc.) to prevent corrosion or electrolytic corrosion. This is to reduce malfunctions of the conductive ball 11a.

As shown in Figures 2 and 6, the identification display unit 2 preferably includes a receiving unit 21 that receives the tilt abnormality signal S2 and tilt normality signal S1 transmitted from the transmitting unit 12, and a display unit 22 that is connected to the receiving unit 21 and displays the tilt abnormality of the building TM based on the tilt abnormality signal S2 and tilt normality signal S1.

As shown in FIG. 6, the tilt abnormality signal S2 and tilt normality signal S1 received by the receiver 21 are converted by the calculator 23 into a list for each location of the building TM and displayed on the display 22. In this case, since the tilt of the building TM is either "normal" or "abnormal," no complex calculation process is required. This allows the tilt abnormality signal S2 and tilt normality signal S1 transmitted from the transmitter 12 to be displayed on the display 22 without complex signal conversion such as pulsing, as described in the example of Patent Document 1.

Therefore, the circuit configuration of the receiving unit 21 and the display unit 22 can be simplified and the display on the display unit 22 can be quickly performed. As a result, the circuit configuration of the entire building tilt abnormality inspection system 10 can be simplified, reducing both the initial cost and the running cost, and also saving inspection time.

In addition, in large factory buildings TM, many support columns TMS are often arranged in a grid pattern. In this case, it is convenient to correlate the location of the support column TMS equipped with the tilt detection unit 1 with data on tilt abnormalities and data on the pass/fail status of the tilt sensor 11 and display it on the display unit 22.

Therefore, as shown in Figures 1, 6 and 7, it is preferable that a tilt detection unit 1 is attached to each of the multiple support pillars TMS of the building TM, the tilt abnormality signal S2 and the tilt normal signal S1 transmitted from the transmission unit 12 of each tilt detection unit 1 include a position signal indicating the location of the support pillar TMS in the building TM, and the identification display unit 2 displays the tilt abnormality of the building TM and the pass/fail of the tilt sensor 11 for each location of the support pillar TMS based on the tilt abnormality signal S2 and the tilt normal signal S1. Here, as shown in Figure 6, the display unit 22 of the identification display unit 2 displays a list of the location of the support pillar TMS, the tilt of the building TM, and the pass/fail of the tilt sensor.

In this case, the inclination of the building TM is either "normal" or "abnormal," and the inclination sensor is either "good" or "bad," so no complex calculations are required and the inspection worker M can quickly confirm. It is also possible to accurately determine which location in the building TM the tilt abnormality is occurring in the support part TMS, and the quality of the tilt sensor 11 of the tilt detection unit 1 attached to the support part TMS can be accurately determined for each location in the building TM. Therefore, the tilt abnormality and the quality of the tilt sensor 11 for each location of the building TM can be inspected safely, simply, and more accurately.

(Modification)
As shown in Fig. 6, the display unit 22 of the identification display unit 2 displays the location of the support part TMS, the inclination of the building TM, and the pass/fail of the inclination sensor 11 in a table, but this is not limited to this. For example, as shown in Fig. 7, the display unit 22B of the identification display unit 2 may display the location of the support part TMS by an X-axis address and a Y-axis address, and display an indication of an abnormality in the inclination of the building TM and an indication of the pass/fail of the inclination sensor 11 as a map in a grid position determined by the X-axis address and the Y-axis address.

In this way, by displaying the abnormal tilt of the building TM as a map, it is possible to quickly determine, for example, in the event of a major earthquake, where would be the safest place to rescue people remaining in the damaged building TM, and to what extent the building TM needs to be renovated so that it can be used safely.

<Action and effect>
As described above in detail, according to the building tilt abnormality inspection system 10 of this embodiment, the tilt detection unit 1 includes a tilt sensor 11 having a pair of upper and lower electrodes 11b and a conductive ball 11a inserted between the electrodes 11b, and outputs an ON signal when the building TM tilts to an abnormal tilt state and the conductive ball 11a comes into contact with the electrodes 11b, and a transmission unit 12 connected to the tilt sensor 11 and transmitting an abnormal tilt signal S2 when the ON signal is output and a normal tilt signal S1 when the ON signal is not output to the identification display unit 2 at predetermined time intervals, so that the structure of the tilt sensor 11 and the circuit configuration of the transmission unit 12 can be simplified and the equipment cost can be reduced. Also, the transmission unit 12 transmits the abnormal tilt signal S2 or the normal tilt signal S1 intermittently at predetermined time intervals, thereby reducing power consumption.

In addition, the tilt sensor 11 is stored in a protective case 14 and arranged horizontally on the receiving plate KD1 of the fixed base KD fixed to the building TM. This reduces the possibility of the conductive ball 11a and electrode 11b of the tilt sensor 11 coming into contact with moisture, dust, pollutants, etc., resulting in malfunction, and allows the tilt sensor 11 to be arranged horizontally in a position where it is easy to detect abnormal tilt of the building TM. This increases the reliability of the tilt sensor 11 and ensures that abnormal tilt of the building TM can be detected.

In addition, since the protective case 14 is connected to the fixed base KD via the hinge HJ so that it can rotate vertically, even if the tilt detection unit 1 is installed at a high point in the building TM, an inspection worker M standing on the floor surface FL can easily inspect the tilt sensor 11 for malfunction by pushing up the protective case 14 from below using an inspection rod TB or the like to tilt the tilt sensor 11 to the angle θ2 at which the tilt of the building TM becomes abnormal. Therefore, the above-mentioned inspection to check whether the tilt sensor 11 is working properly can be performed safely, quickly, and without hassle.

Therefore, according to this embodiment, it is possible to provide a building tilt abnormality inspection system 10 that can safely, simply, and at low cost inspect the tilt abnormality of the building TM and the quality of the tilt sensor 11.

In addition, according to this embodiment, the tilt detection unit 1 is provided with a lighting device 17 on the outer surface of the protective case 14, which lights up when the building TM is tilted to an abnormal tilt state and the conductive ball 11a comes into contact with both electrodes 11b. Therefore, when inspecting the tilt sensor 11, the inspection worker M only needs to check whether the lighting device 17 is on or not to check whether the tilt sensor 11 is working properly. Therefore, there is no need to wait until the identification display unit 2 receives the tilt abnormality signal S2 from the transmission unit 12, which is transmitted at a predetermined time interval, and displays the tilt abnormality of the building TM. As a result, the inspection of the tilt sensor 11 can be completed in an even shorter time.

In addition, according to this embodiment, the inclination sensor 11 is composed of a conductive ball 11a, a lower electrode 112b whose upper end surface 112bs on which the conductive ball 11a rolls is formed in a cone-shaped concave shape, and an upper electrode 111b that is arranged opposite the lower electrode 112b and comes into contact with the conductive ball 11a when the lower electrode 112b is tilted at an angle θ2 that causes an inclination abnormality of the building TM. A level 16 is installed on the electrode support plate 13 that supports the lower electrode 112b, and the electrode support plate 13 is connected to the lower part 144 of the protective case 14 so that the angle of the electrode support plate 13 can be adjusted while checking the level 16, and the inclination sensor 11 can be installed in the protective case 14 so that it is in a horizontal state. Therefore, even if there is variation in the level of the fixed base KD relative to the building TM, the inclination sensor 11 can be installed with high precision relative to the building TM. As a result, it is possible to perform inspections of the inclination abnormality of the building TM and the quality of the inclination sensor 11 more easily and accurately.

In addition, according to the embodiment, the identification display unit 2 includes a receiving unit 21 that receives the tilt abnormality signal S2 and tilt normal signal S1 transmitted from the transmitting unit 12, and a display unit 22 that is connected to the receiving unit 21 and displays the tilt abnormality of the building TM based on the tilt abnormality signal S2 and tilt normal signal S1. Therefore, the tilt abnormality signal S2 and tilt normal signal S1 transmitted from the transmitting unit 12 can be displayed on the display unit 22 without complex signal conversion such as pulsing. Therefore, the circuit configuration of the receiving unit 21 and the display unit 22 can be simple and simplified, and the display on the display unit 22 can be performed quickly. As a result, the circuit configuration of the entire building tilt abnormality inspection system 10 can be simplified, and both the initial cost and running cost can be reduced, and inspection time can be saved.

In addition, according to this embodiment, the building TM has a tilt detector 1 attached to each of the multiple support columns TMS, and the tilt abnormality signal S2 and tilt normality signal S1 transmitted from the transmitter 12 of each tilt detector 1 include a position signal indicating the location of the support column TMS in the building TM. The identification display unit 2 displays the tilt abnormality of the building TM and the quality of the tilt sensor 11 for each location of the support column TMS based on the tilt abnormality signal S2 and the tilt normality signal S1, so that it is possible to quickly and accurately determine which location of the support column TMS in the building TM has a tilt abnormality. In addition, it is possible to accurately determine the quality of the tilt sensor 11 of the tilt detector 1 attached to the support column TMS for each location of the building TM. Therefore, it is possible to safely, simply, and more accurately inspect the tilt abnormality and the quality of the tilt sensor 11 for each location of the building TM.

The present invention can be used as a building tilt abnormality inspection system that uses a tilt sensor attached to a building to check whether or not there is an abnormal tilt in the building.

REFERENCE SIGNS LIST 1 Tilt detection unit 2 Identification display unit 10 Tilt abnormality inspection system 11 Tilt sensor 11a Conductive ball 11b Electrode 12 Transmitter 13 Electrode support plate 14 Protective case 16 Level 17 Lighting fixture 21 Receiver 22 Display unit 111b Upper electrode 112b Lower electrode 112bs Upper end surface 144 Lower part HJ Hinge KD Fixing base KD1 Receiving plate TM Building TMS Support part S1 Tilt normal signal S2 Tilt abnormal signal

Claims (5)

A system for inspecting an abnormal inclination of a building, comprising: a tilt detector that is attached to a high point of a building and detects the degree of inclination of the building; and an identification display unit that receives a signal from the tilt detector and displays an abnormal inclination of the building,
The tilt sensor includes a pair of upper and lower electrodes and a conductive ball inserted between the electrodes, and outputs an ON signal when the building is tilted abnormally and the conductive ball comes into contact with the electrodes.
a transmission unit connected to the tilt sensor and configured to transmit an abnormal tilt signal to the identification display unit at a predetermined time interval when the ON signal is output and a normal tilt signal to the identification display unit at a predetermined time interval when the ON signal is not output,
A building inclination abnormality inspection system characterized in that the inclination sensor is housed in a protective case and arranged horizontally on a receiving plate of a fixed base fixed to the building, and the protective case is connected to the fixed base via a hinge so that it can be rotated in the vertical direction. The system for inspecting an abnormal tilt of a building according to claim 1,
The tilt detection unit is provided with a lighting device on the outer surface of the protective case that lights up when the building is tilted in an abnormal state and the conductive ball and both electrodes come into contact with each other. This is a building tilt abnormality inspection system. The system for inspecting an abnormal tilt of a building according to claim 1 or 2,
the tilt sensor comprises the conductive ball, a lower electrode whose upper end surface along which the conductive ball rolls is formed in a cone-like concave shape, and an upper electrode that is disposed opposite the lower electrode and comes into contact with the conductive ball when the lower electrode is tilted at an angle that causes an inclination abnormality in the building; and a spirit level is installed on an electrode support plate that supports the lower electrode;
A system for inspecting anomalies in tilt of a building, wherein the electrode support plate is connected to a lower portion of the protective case in an angle adjustable manner. The system for inspecting an abnormal tilt of a building according to any one of claims 1 to 3,
The identification display unit is characterized in that it comprises a receiving unit that receives the abnormal tilt signal and the normal tilt signal transmitted from the transmitting unit, and a display unit connected to the receiving unit that displays the abnormal tilt of the building based on the abnormal tilt signal and the normal tilt signal. The system for inspecting an abnormal tilt of a building according to any one of claims 1 to 4,
the tilt detector is attached to each of a plurality of support columns in the building, and the tilt abnormal signal and the tilt normal signal transmitted from the transmitter of each tilt detector include a position signal indicating a location of the support column in the building;
A building inclination abnormality inspection system characterized in that the identification display unit displays the building inclination abnormality and the pass/fail condition of the inclination sensor for each location of the support part based on the inclination abnormality signal and the inclination normal signal.

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