JP2018105653A - Wall body, inspection system and inspection method of wall body - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a wall body capable of inspecting a failure in a short time.SOLUTION: The wall body includes: a main body part 11 which is constructed by a concrete which is a cement hardened body; a steel bar buried in the whole area of the main body part 11; and a plurality of heating sensors 13 which are buried in the whole area of the main body part 11, are capable of heating by increase in electric resistance accompanied by a failure of the buried place, and are constructed by a fiber member containing a carbon particle. The heating sensors 13 are disposed on the front side of the main body part 11 rather than the steel bar.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a technique of a wall body, an inspection system including the wall body, and a wall body inspection method.

  Conventionally, the technique of the wall body comprised with cement hardened bodies, such as concrete, is well-known. For example, as described in Patent Document 1.

  The wall body (concrete) described in Patent Document 1 is inspected for cracks (damage) on the surface by a concrete surface inspection device. The concrete surface inspection apparatus includes a light that illuminates the surface of a wall, a camera that captures the surface of the wall that is illuminated, and a binarization processing unit that binarizes image data captured by the camera. Etc. The concrete surface inspection device inspects the surface of the wall for damage based on the image data binarized by the binarization processing unit.

  The concrete surface inspection apparatus needs to take a picture with the camera close to the surface of the wall so that cracks can be identified. For this reason, it becomes difficult for the said concrete surface inspection apparatus to perform a wide range inspection by one measurement. In this case, in order to inspect the entire surface of the wall body, the concrete surface inspection apparatus needs to perform photographing with a camera many times while moving appropriately. For this reason, the prior art is disadvantageous in that it takes time to inspect the wall for damage.

JP 2011-117788 A

  The present invention has been made in view of the above situation, and a problem to be solved is to provide a wall body, an inspection system, and a wall body inspection method capable of inspecting damage in a short time. Is.

  The problem to be solved by the present invention is as described above. Next, means for solving the problem will be described.

  That is, according to a first aspect of the present invention, a main body portion made of a hardened cement body and a heat generating means embedded in the main body portion and capable of generating heat when the embedded portion is broken are provided.

  According to a second aspect of the present invention, a reinforcing bar embedded in the main body is further provided, and the heating means is disposed on the surface side of the main body with respect to the reinforcing bar.

  According to a third aspect of the present invention, the heat generating means is constituted by a fiber member containing carbon particles.

  In Claim 4, the wall body as described in any one of Claim 1- Claim 3 and the measurement means which measures the surface temperature of the said main-body part of the said wall body are comprised.

  In claim 5, the heat generating means has electrical conductivity, and electrical resistance increases with the breakage of the embedded portion, and the inspection system is based on the current flowing through the heat generating means, The apparatus further comprises detection means for detecting an increase in the electric resistance.

  In Claim 6, the measurement process which measures the surface temperature of the said main-body part of the wall body as described in any one of Claim 1- Claim 3, and the damage of the said wall body based on the said surface temperature. And an inspection process to be inspected.

  In claim 7, the heat generating means has conductivity, and an electrical resistance increases with the breakage of the main body, and the wall body inspection method is performed before performing the measurement step. The method further comprises a distribution step for distributing current to the heat generating means.

  According to an eighth aspect of the present invention, the method further includes a determination step of determining whether or not to perform the measurement step based on a current flowing through the heat generating means before performing the measurement step.

  As effects of the present invention, the following effects can be obtained.

  According to the first aspect of the present invention, the damage can be inspected in a short time by increasing the temperature of the damaged buried portion and detecting the increase in the temperature.

  In Claim 2, before the damage which arose on the surface of the main-body part arrives at a reinforcing bar, the said damage can be detected.

  In claim 3, the heat generating means can be configured easily.

  According to the fourth aspect, the breakage can be inspected in a short time.

  According to the fifth aspect, it is possible to detect that the main body is damaged based on the current flowing through the heat generating means.

  In claim 6, damage can be inspected in a short time.

  According to the seventh aspect, the cost required for the inspection can be reduced.

  In claim 8, the cost required for the inspection can be reduced.

The schematic diagram which showed the inspection system which concerns on 1st embodiment. (A) The perspective view which showed the heat_generation | fever sensor. (B) Sectional drawing which showed the heat generation sensor embed | buried under the main-body part. The flowchart which showed the procedure of the inspection method of a wall body. The figure which showed the imaging | photography result of the infrared camera in case the crack has not generate | occur | produced. Sectional drawing which showed the crack. The figure which showed the imaging | photography result of the infrared camera in case the crack has generate | occur | produced. The schematic diagram which showed the inspection system which concerns on 2nd embodiment. The flowchart which showed the procedure of the inspection method of the wall body which concerns on 2nd embodiment. The schematic diagram which shows a mode that the increase in an electrical resistance is detected in 2nd embodiment.

  In the following description, the up-down direction, the left-right direction, and the front-rear direction are defined according to the arrows shown in the figure.

  Below, the inspection method of the wall body 10, the inspection system 1, and the wall body 10 which concern on 1st embodiment is demonstrated.

  Below, with reference to FIG.1 and FIG.2, the structure of the wall 10 which concerns on 1st embodiment is demonstrated.

  The wall body 10 is for partitioning a space or the like. The wall 10 according to the first embodiment is used for an outer wall of a building. The wall body 10 includes a main body 11, a reinforcing bar 12, a heat generation sensor 13, and the like.

  As shown in FIG. 1, the main body portion 11 is a portion that forms the outer shape of the wall body 10. The main body 11 is formed in a predetermined shape (substantially box-like in the first embodiment) by putting ready-mixed concrete into a mold and curing it. The main body 11 includes an opening 11a. The opening 11a is a hole that communicates the internal space of the main body 11 and the external space, and is provided with a window W.

  The reinforcing bar 12 shown in FIG. 2B is for increasing the strength of the main body 11. Reinforcing bar 12 is constituted by combining a plurality of rod-shaped steel materials in a lattice shape, for example. The rebar 12 is embedded in the main body portion 11 when the ready-mixed concrete is put in the state accommodated in the formwork. The reinforcing bar 12 is embedded in the entire body 11. The reinforcing bars 12 are disposed, for example, at a position about 5 cm away from the surface of the main body 11 (the outer surface in the first embodiment) (a position about 5 cm behind the front surface in FIG. 2B).

  The heat generation sensor 13 shown in FIGS. 1 and 2 generates heat due to breakage (for example, a crack C shown in FIG. 5) generated in the main body 11. The heat generation sensor 13 is formed in a string shape. The heat generation sensor 13 according to the first embodiment is configured by a commercially available heat generation sensor. The heat generation sensor 13 includes glass fibers 13a and carbon fibers 13b.

  The glass fiber 13 a is a string-like portion that becomes the nucleus of the heat sensor 13. A plurality of glass fibers 13 a are provided in the heat generation sensor 13.

  The carbon fiber 13b is a substantially cylindrical portion that covers the glass fiber 13a. The carbon fiber 13b is an insulator mainly composed of carbon. The carbon fiber 13b has conductive carbon particles 13c dispersed therein.

  The heat generation sensor 13 is configured such that the current A can flow when the carbon particles 13c contact each other along the direction in which the glass fiber 13a extends. Further, when the heat generation sensor 13 is deformed by a tensile load or the like, the contact state of the carbon particles 13c is changed at the deformed portion (a part of the carbon particles 13c is not in contact at the deformed portion). The electrical resistance increases locally.

  A plurality of the heat generation sensors 13 configured as described above are embedded in the entire area of the main body 11 with appropriate intervals. At this time, the heat generation sensor 13 is disposed on the surface side (outside, front side in FIG. 2B) from the reinforcing bar 12. Specifically, the heat generation sensor 13 is disposed at a position about 2 cm away from the front surface of the main body 11 (see the distance L between the front surface of the main body 11 and the heat generation sensor 13 shown in FIG. 2B). Further, the heat generation sensor 13 is embedded with its orientation changed as appropriate according to the position where the sensor 13 is embedded.

  Next, the configuration of the inspection system 1 will be described with reference to FIG.

  The inspection system 1 is for inspecting damage (for example, crack C) of the wall body 10. The inspection system 1 includes a wall 10, an infrared camera 20, a display unit 30, and a power source 40.

  The infrared camera 20 is for measuring the surface temperature of the wall 10. The infrared camera 20 converts the infrared ray into a pixel value by causing the infrared ray emitted from the surface of the wall body 10 to enter a sensor (not shown) through the lens 21. The infrared camera 20 can create an image (see FIG. 4, hereinafter referred to as “thermal image B”) indicating the temperature distribution of the captured range based on the converted pixel value.

  The display unit 30 is for displaying the photographing result (thermal image B) of the infrared camera 20. The display unit 30 is configured by, for example, a liquid crystal display. The display unit 30 is connected to the infrared camera 20, and a signal related to the thermal image B is input from the infrared camera 20. Thereby, the display unit 30 displays the input thermal image B.

  The power source 40 is for causing the current A to flow through the heat generation sensor 13. The power source 40 is connected to a terminal (not shown) provided in the heat generation sensor 13, and can apply a predetermined voltage to the heat generation sensor 13 to distribute the current A.

  Next, with reference to FIG. 1 to FIG. 6, a procedure of an inspection method for the wall body 10 (hereinafter simply referred to as “inspection method”) will be described. In the following, a case where the front surface of the wall body 10 (main body portion 11) is inspected will be described as an example.

  The inspection method is for inspecting the wall 10 for damage. In the inspection method according to the first embodiment, the inspection system 1 is used.

  As shown in FIG. 3, first, in step S10, the heat generation sensor 13 is operated. At this time, the power source 40 is operated, and the current A flows through the heat generation sensor 13. When the process of step S10 ends, the process proceeds to step S20.

  In step S <b> 20, the surface temperature of the main body 11 of the wall body 10 is measured by the infrared camera 20. At this time, the front surface of the main body 11 is photographed by the infrared camera 20 from a position away from the wall body 10, and a single thermal image B in which the entire front surface of the wall body 10 is accommodated is created. Thereby, for example, a thermal image B as shown in FIG. 4 is created, and the thermal image B is input to the display unit 30.

  In the thermal image B shown in FIG. 4, a difference in surface temperature on the front surface of the main body 11 appears as a difference in pixel value (color density). In the first embodiment, the color of the thermal image B is darker as the temperature is lower. For this reason, in FIG. 4, the opening part 11a (window W) with the lowest temperature in the main body part 11 is shown in black (the darkest color).

  In step S20 shown in FIG. 3, after such a thermal image B is displayed on the display unit 30, the power supply 40 is operated to stop the supply of the current A to the heat generation sensor 13, and the operation of the heat generation sensor 13 is performed. Stopped. Thus, the process of step S20 ends. When the process of step S20 ends, the process proceeds to step S30.

  In step S30, based on the thermal image B, it is confirmed whether or not there is a change in the surface temperature of the front surface of the main body portion 11. Specifically, it is confirmed whether or not there is a portion where the temperature is locally high on the front surface of the main body 11 shown in the thermal image B.

  Here, as shown in FIG. 5, when a crack C (breakage) has occurred on the front surface of the main body 11 before the inspection, a tensile load is generated at the location where the crack C has occurred, and the heat sensor 13 The part is deformed. As a result, the heat sensor 13 has an increased electrical resistance at the location where the crack C is generated, and the current A becomes difficult to flow. Thereby, for example, the current A having a predetermined value flows before the occurrence of the breakage in the heat generation sensor 13, but the current A1 having a value smaller than the predetermined value flows due to the occurrence of the breakage. . When step S10 is performed in such a state, the crack C and its periphery (portion indicated by a dotted line in FIG. 5, hereinafter referred to as “heating point D”) in the main body 11 are heated by the heating sensor 13. . For this reason, the temperature of the heat generating portion D is higher than the temperature of the portion where the crack C is not generated. When step S20 is performed in such a state, as shown in FIG. 6, the pixel value of the heat generation portion D is different from the pixel value of the portion where the crack C is not generated (shown in a light color). Image B will be created.

  On the other hand, when the crack C is not generated in the main body 11, the heat generation sensor 13 is not deformed and the electric resistance is not increased. When step S20 is performed in such a state, as shown in FIG. 4, a thermal image B that does not include the heat generation point D is created. As described above, according to the wall body 10 according to the first embodiment, the temperature of the front surface can be changed depending on whether or not the crack C is generated. Therefore, the thermal image B that is different in the infrared camera 20 depending on whether or not the crack C is generated. Can be created.

  Therefore, in step S30 shown in FIG. 3, it is confirmed whether or not the heat generation point D is in the thermal image B. Thereby, a change in the surface temperature of the front surface of the main body 11 is confirmed. If it is determined that there is a change in the surface temperature of the front surface of the main body 11 (the heat generation point D is in the thermal image B) (step S30: YES), the front surface of the main body 11 is damaged. The determination is made and the process proceeds to step S40. On the other hand, when it is determined that there is no change in the surface temperature (step S30: NO), it is determined that no damage has occurred on the front surface of the main body 11 and the processing of the inspection method ends.

  In step S40, a repair location is confirmed based on the thermal image B. At this time, the heat generation point D shown in the thermal image B is regarded as a repair point, which part of the main body 11 the repair point is (for example, the first floor part of the building), or the repair point The number etc. are confirmed. When the process of step S40 ends, the process proceeds to step S50.

  In step S50, the confirmed repair location is repaired. In 1st embodiment, a repair location is repaired using materials (for example, mortar etc.) whose heat conductivity is lower than concrete. When the process of step S50 ends, the process of the inspection method ends.

  The inspection method according to the first embodiment detects breakage based on the surface temperature (thermal image B) of the main body 11 (step S30). According to this, it is possible to easily confirm whether or not damage has occurred based on the difference in color.

  Moreover, according to the inspection method which concerns on 1st embodiment, the location where the breakage generate | occur | produced and the temperature of the periphery can be made high. As a result, the area occupied by the heat generation location D in the thermal image B can be increased (not only the location where the damage has occurred, but also the surrounding color). Thus, even when the surface temperature is measured from a position away from the main body 11 (for example, a position where damage is too small in the visible image to determine whether or not the damage has occurred) (step S20), the heat generation point D Can be easily confirmed. For this reason, it is possible to inspect a wide range of the front surface of the main body portion 11 with a single measurement of the surface temperature, and finish the inspection of the front surface of the main body portion 11 with a small number of measurements (one time in the first embodiment). Can do. Thereby, since the front surface of the main-body part 11 can be test | inspected efficiently, the presence or absence of damage and specification of a damaged part can be test | inspected in a short time.

  Further, since the damage can be detected even if the surface temperature is measured from a position away from the main body part 11, the infrared camera 20 is inspected without approaching a high part of the main body part 11 (for example, the third floor part of the building). can do. For this reason, the thermal image B can be created easily.

  As described above, the heat generation sensor 13 is disposed on the surface side of the reinforcing bar 12. According to this, the crack C (crack C shown in FIG. 5) which has not reached the reinforcing bar 12 in step S30 can be detected. Thereby, the small crack C which has not reached to the reinforcing bar 12 can be found early, and the crack C can be prevented from expanding until it reaches the reinforcing bar 12. For this reason, it is possible to suppress corrosion of the reinforcing bar 12 due to the crack C reaching the reinforcing bar 12 (by touching the reinforcing bar 12 with moisture or salt through the expanded crack C). For this reason, it can suppress that the intensity | strength of the wall body 10 falls.

  Further, the heat generation sensor 13 operates only during steps S10 and S20. As a result, it is possible to operate the heat generating sensor 13 only when measuring the surface temperature and not to waste useless power. Thereby, the cost required for the inspection can be reduced.

  Here, even if the portion where the crack C is generated is repaired in step S50, the electrical resistance of the heat generation sensor 13 may remain increased. For this reason, if the front surface of the main body 11 is photographed with the infrared camera 20 after the crack C is repaired, the temperature of the repaired portion may increase. In this case, even if the crack C does not occur at the location repaired in the next and subsequent inspections, there is a possibility that it is erroneously detected as the heat generation location D (location with the crack C) in step S30.

  Therefore, in the first embodiment, in step S50, the crack C is repaired with a material having a lower thermal conductivity than concrete. According to this, since it can suppress that the surface temperature of the location which repaired the crack C can raise, it can make it difficult to carry out a misdetection by the inspection after the next time. When the crack C occurs once again at the location where the crack C is repaired, the heat sensor 13 is deformed once again to increase the electrical resistance. If the crack C occurs again, the change in surface temperature is overlooked in step S30. Can be detected without any problem.

  As described above, the wall body 10 according to the first embodiment includes the main body portion 11 made of concrete (hardened cement) and the heat generation that is embedded in the main body portion 11 and can generate heat when the embedded portion is damaged. And a sensor 13 (heat generating means).

  By comprising in this way, the temperature of the burying location damaged can be raised. Thereby, if the rise of the said temperature is detected, damage can be detected easily. For this reason, the breakage of the main body 11 can be inspected in a short time.

Further, a reinforcing bar 12 embedded in the main body part 11 is further provided, and the heat generation sensor 13 is arranged on the surface side of the main body part 11 with respect to the reinforcing bar 12.
In the first embodiment, the surface side means the surface side to be inspected. Specifically, when the front surface of the wall body 10 shown in FIG. 1 is inspected, it means that the heat generation sensor 13 is arranged in front of the reinforcing bars 12.

  By configuring in this manner, the crack C can be detected before the crack C (damage) generated on the surface of the main body 11 reaches the reinforcing bar 12.

  The heat sensor 13 is constituted by a fiber member containing carbon particles 13c.

  With this configuration, the heat generation sensor 13 can be easily configured using a commercially available heat generation sensor.

  As described above, the inspection system 1 according to the first embodiment includes the wall body 10 and the infrared camera 20 (measuring means) that measures the surface temperature of the main body 11 of the wall body 10. It is.

  By comprising in this way, the damaged location can be identified quickly based on the surface temperature. Thereby, the breakage of the main body 11 can be inspected in a short time.

  Further, as described above, the inspection method according to the first embodiment includes the measuring step (step S20) of measuring the surface temperature of the main body 11 of the wall body 10, and the damage of the wall body 10 based on the surface temperature. And an inspection process (step S30) for inspecting.

  By comprising in this way, the damaged location can be identified quickly based on the surface temperature. Thereby, damage to the wall 10 can be inspected in a short time.

  In addition, the heat sensor 13 has conductivity, and an electric resistance increases with the breakage of the main body 11, and the inspection method of the wall body 10 is performed before the measurement step. It further includes a distribution step (step S10) for distributing the current A to the heat generation sensor 13.

  By configuring in this way, it is not necessary to pass the current A through the heat generating sensor 13 except for the inspection, so that the cost required for the inspection can be reduced.

In addition, the concrete which concerns on 1st embodiment is one Embodiment of the cement hardening body which concerns on this invention.
The heat generation sensor 13 according to the first embodiment is an embodiment of the heat generation means according to the present invention.
The infrared camera 20 according to the first embodiment is an embodiment of the measuring means according to the present invention.

  Next, the inspection system 101 and the inspection method according to the second embodiment will be described with reference to FIGS.

  In addition, below, the same code | symbol is attached | subjected about the thing same as the test | inspection system 1 which concerns on 1st embodiment, and the description is abbreviate | omitted.

  As shown in FIG. 7, the inspection system 101 according to the second embodiment includes a wall 10, an infrared camera 20, a display unit 30, a power supply 40, a power sensor 150, and a detection unit 160.

  The power sensor 150 is provided in a power path between the power supply 40 and the heat generation sensor 13 and is a voltage of power flowing through the provided portion (power that flows through the heat generation sensor 13 and returns to the power supply 40 in FIG. 7). (Supply voltage) and current (supply current) are detected.

  The detection unit 160 detects the current A flowing through the heat generation sensor 13. The detection unit 160 is mainly configured by an arithmetic processing device such as a CPU, a storage device such as a RAM or a ROM, and an input / output device such as a touch panel. The detection part 160 is comprised by HEMS (Home Energy Management System), for example.

  The detection unit 160 configured as described above is connected to the power sensor 150. The detection unit 160 receives a signal related to the detection result of the current A from the power sensor 150. The detection unit 160 can acquire a current value flowing through the heat generation sensor 13 based on the input signal.

  Next, an inspection method according to the second embodiment will be described.

  As shown in FIG. 8, in the inspection method according to the second embodiment, step S10 is first performed, and the heat generation sensor 13 is operated. At this time, the current A flowing through the heat generation sensor 13 is detected by the power sensor 150, and a signal related to the detection result is input to the detection unit 160. When the process of step S10 ends, the process proceeds to step S110.

  In step S110, the detection unit 160 confirms whether or not the electrical resistance of the heat generation sensor 13 is increasing. As described above, the heat sensor 13 has an increased electrical resistance when the main body 11 is damaged, such as a crack C, and a current A having a predetermined value flows before the occurrence of the damage. A current A1 having a value smaller than the predetermined value flows (see FIG. 9).

  Therefore, in step S110, the detection unit 160 compares the current value flowing through the heat generation sensor 13 (the detection result of the power sensor 150) with a predetermined threshold value stored in the storage device. And the detection part 160 judges that electrical resistance is large when an electric current value is smaller than a predetermined threshold value (step S110: YES). In this case, the detection unit 160 displays on the touch panel that the main body unit 11 is damaged. And it transfers to step S20 and a surface temperature measurement, repair, etc. are performed similarly to the inspection method which concerns on 1st embodiment (steps S20-S50). In this case, if it is determined in step S30 that there is no change in surface temperature, it is determined that the detection result in step S110 is a false detection, and the processing of the inspection method ends.

  On the other hand, in step S110, when the current value flowing through the heat generation sensor 13 is equal to or greater than a predetermined threshold value, the detection unit 160 determines that the electrical resistance is not increased (step S110: NO). In this case, the detection unit 160 displays on the touch panel that the main body unit 11 is not damaged, and ends the inspection method.

  As described above, in the inspection method according to the second embodiment, it is determined whether or not the main body 11 is damaged based on the current A flowing through the heat generation sensor 13 (steps S10 and S110). Accordingly, when the front surface of the main body portion 11 is not damaged, the inspection of the main body portion 11 can be completed without photographing the front surface of the main body portion 11 with the infrared camera 20 (step S110: NO). Can be inspected for damage.

  Further, in the second embodiment, the breakage of the main body 11 is confirmed by two processes of a process for confirming an increase in electrical resistance (step S110) and a process for confirming a change in surface temperature (step S30). can do. Accordingly, since the front surface of the main body 11 can be inspected using two different standards (electrical resistance and surface temperature), the main body 11 can be inspected for damage with high accuracy.

  As described above, in the inspection system 1 according to the second embodiment, the heat generation sensor 13 has conductivity, and an electrical resistance increases as the embedded portion is broken. The apparatus further includes a detection unit 160 (detection means) that detects an increase in the electrical resistance based on the current A flowing through the heat generation sensor 13.

  With this configuration, it is possible to detect that the main body 11 is damaged based on the current A flowing through the heat generation sensor 13.

  Further, as described above, in the inspection method according to the second embodiment, before performing the measurement process, a determination process for determining whether or not to perform the measurement process based on the current A flowing through the heat generation sensor 13 ( Step S110) is further provided.

  By comprising in this way, a measurement process and an inspection process can be performed only when there exists damage. Thereby, the cost required for the inspection can be reduced.

  The embodiment of the present invention has been described above, but the present invention is not limited to the above-described configuration, and various modifications can be made within the scope of the invention described in the claims.

  For example, the wall body 10 is an outer wall of a building, but is not limited thereto, and may be an inner wall of a building. Moreover, the wall body 10 does not need to be a member which comprises a building, for example, may comprise a dike etc.

  Moreover, although the cement hardened body shall be concrete, it is not limited to this, For example, mortar etc. may be sufficient.

  Further, although the heat generation sensor 13 is embedded in the entire area of the main body 11, the heat sensor 13 is not limited to this and may be embedded in a part of the main body 11. In this case, it is desirable that the main body 11 is buried in a place where damage is likely to occur, for example, in the vicinity of the opening 11a. With this configuration, it is possible to reduce the number of heat sensors 13 and the like and reduce the cost required for the inspection.

  Moreover, although the heat generation sensor 13 shall be embedded in the position about 2 cm away from the surface of the main-body part 11, it is not limited to this, It can embed in arbitrary positions. The heat sensor 13 is embedded at a position about 2 cm away from the surface of the main body 11, thereby ensuring the strength of the main body 11 and the distance from the reinforcing bar 12. For this reason, it is desirable that the heat sensor 13 is embedded at a position about 2 cm away from the surface of the main body 11.

  In step S50, the crack C is repaired with mortar (a material having higher thermal conductivity than the material of the main body 11). However, the present invention is not limited to this. For example, concrete (with the main body 11 and The crack C may be repaired with the same material).

  The inspection system 101 according to the second embodiment may be configured such that the current A is always supplied to the heat generation sensor 13 and the current value is monitored by the detection unit 160. With this configuration, the inspection system 101 can detect in real time that the electrical resistance has increased. Thereby, since the damage of the main-body part 11 can be repaired rapidly, the strength reduction by the damage of the main-body part 11 can be suppressed effectively.

  Moreover, although the detection part 160 shall display the result which confirmed the increase in electrical resistance on a touch panel, it is not limited to this, You may notify a repair company. In this case, for example, the detection unit 160 may automatically perform steps S10 and S110 every certain period (such as every month). By comprising in this way, the worker of a repair company etc. can test | inspect the wall body 10 without going to a building (remotely).

  Moreover, the detection part 160 may correct | amend the said threshold value suitably, when the increase in electrical resistance is confirmed by step S110. As a result, the detection unit 160 can reset the threshold value in accordance with the change in the electrical resistance of the heat generation sensor 13, so that the increase in the electrical resistance can be accurately confirmed in step S110.

  Moreover, although the detection part 160 shall be comprised by HEMS, it is not limited to this, For example, you may be comprised by commercially available PC etc.

  The detection unit 160 detects an increase in electrical resistance based on the current value, but is not limited to this. For example, the detection unit 160 may detect an increase in electrical resistance based on an electricity bill or the like. Good.

DESCRIPTION OF SYMBOLS 1 Inspection system 10 Wall body 11 Main body part 13 Heat generation sensor (heat generation means)
C crack (breakage)

Claims (8)

A main body composed of a hardened cement body,
A heat generating means embedded in the main body and capable of generating heat when the embedded portion is broken;
Comprising
Wall body. Further comprising a reinforcing bar embedded in the main body,
The heating means is
Arranged on the surface side of the main body part than the reinforcing bar,
The wall body according to claim 1. The heating means is
Constituted by a fiber member containing carbon particles,
The wall body according to claim 1 or 2. The wall body according to any one of claims 1 to 3,
Measuring means for measuring the surface temperature of the main body of the wall;
Comprising
Inspection system. The heating means is
While having conductivity, the electrical resistance increases with the breakage of the buried portion,
The inspection system includes:
Further comprising detection means for detecting an increase in the electrical resistance based on a current flowing through the heat generation means;
The inspection system according to claim 4. A measuring step of measuring a surface temperature of the main body portion of the wall body according to any one of claims 1 to 3,
An inspection step of inspecting the wall for damage based on the surface temperature;
Comprising
Wall inspection method. The heating means is
In addition to having conductivity, the electrical resistance increases with breakage of the main body,
The wall inspection method is:
Before the measurement step, further comprising a flow step of flowing a current through the heat generating means,
The wall inspection method according to claim 6. Before performing the measurement step, further comprising a determination step of determining whether to perform the measurement step based on the current flowing through the heat generating means;
The wall inspection method according to claim 7.

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