Tamper detection device, tamper detection system

Abstract

The repair detection device makes it possible to grasp the deterioration of the waterproofing layer of a building and determine whether repair is necessary. In addition, by storing time-lapse data in the structure, it is also possible to predict when the waterproofing layer will need to be repaired. [Solution] The renovation detection device comprises a moisture detection radio communication device or a pH detection radio communication device installed between the concrete surface on the outdoor side of the building and the waterproofing layer applied to the concrete surface, and a moisture detection radio communication device or a pH detection radio communication device installed on the concrete surface on the indoor side of the building.The moisture detection radio communication device has an antenna that receives radio waves emitted from the receiver, a control circuit that is powered by the radio waves, and a moisture detection circuit that detects moisture.The pH detection radio communication device has an antenna that receives radio waves emitted from the receiver, a control circuit that is powered by the radio waves, a moisture detection circuit that detects moisture, and a pH detection circuit that detects pH.

Description

[Technical Field]

[0001] The present disclosure relates to a tamper detection device and a tamper detection system. [Background technology]

[0002] Buildings and other structures are constantly exposed to rain, wind, ultraviolet rays, vibrations from earthquakes, and other factors, which cause deterioration over time. Reinforced concrete structures, which use concrete and waterproofing layers to prevent water from penetrating the reinforcing bars and prevent corrosion of the reinforcing bars, are no exception. When the waterproofing layer deteriorates and rainwater and other elements begin to seep in, the concrete becomes neutralized and the reinforcing bars also deteriorate. Therefore, when the waterproofing layer deteriorates, it is advisable to repair it as soon as possible, such as by reapplying the waterproofing layer, to prevent water from seeping into the concrete.

[0003] Given this situation, in order to detect deterioration of the waterproof layer construction surface, for example, Patent Document 1 discloses a method in which a conductive layer is constructed under the waterproof layer and water leakage is detected by the presence or absence of electricity, i.e., the presence or absence of damage to the waterproof layer. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Laid-Open No. 2003-56132 Summary of the Invention [Problem to be solved by the invention]

[0005] The method of Patent Document 1 can detect breaks in the waterproof layer, but requires the construction of a conductive layer and then electrical connection to the conductive layer. Therefore, if the conductive layer is made wider, the detection range will be wider, but the equipment will become larger, and if the conductive layer is made narrower, the detection range will be narrower. Furthermore, if multiple conductive layers are installed in different locations, each one will need to be electrically connected to detect breaks in the waterproof layer, which again makes the equipment large and complex.

[0006] Therefore, it is an important issue to detect deterioration of the waterproofing layer early in order to determine whether or not repairs are necessary. However, when detecting deterioration of such waterproofing layers, it is desirable to use smaller devices, and it is expected that construction costs and the costs of the device itself can be reduced even if they are installed in multiple key locations.

[0007] The present disclosure has been proposed in consideration of the above-mentioned problems, and aims to provide a repair detection device that detects the deterioration state of an applied waterproofing layer by detecting the presence or absence of moisture using a device installed under the waterproofing layer, thereby determining whether the waterproofing layer needs to be repaired. [Means for solving the problem]

[0008] In order to achieve the above-mentioned object, the renovation detection device of the present disclosure comprises a moisture detection wireless communication device or a pH detection wireless communication device installed between the concrete surface on the outdoor side of a building and a waterproofing layer applied to the concrete surface, and a moisture detection wireless communication device or a pH detection wireless communication device installed on the concrete surface on the indoor side of the building, wherein the moisture detection wireless communication device has an antenna that receives radio waves emitted from the receiver, a control circuit that is powered by the radio waves, and a moisture detection circuit that detects moisture, and the pH detection wireless communication device has an antenna that receives radio waves emitted from the receiver, a control circuit that is powered by the radio waves, a moisture detection circuit that detects moisture, and a pH detection circuit that detects pH.

[0009] In order to achieve the above-mentioned object, the repair detection system of the present disclosure comprises a plurality of pH detection wireless communication devices installed between the concrete surface on the outdoor side of a building and a waterproofing layer applied to the concrete surface, a plurality of pH detection wireless communication devices installed on the concrete surface on the indoor side of the building, and a receiver for communicating with the pH detection wireless communication devices via radio waves, wherein each of the pH detection wireless communication devices has an antenna that receives radio waves emitted from the receiver, a control circuit that is powered by the radio waves, a moisture detection circuit that detects moisture, and a pH detection circuit that detects pH, and the receiver has a transceiver unit that communicates with the pH detection wireless communication devices to send and receive data, and a repair detection unit that detects whether repair is necessary based on the moisture detection information and / or pH detection information obtained from the pH detection wireless communication device by the transceiver unit, and the repair detection unit presents the number and / or percentage of communications that detect that repair is necessary as a result of communicating with the pH detection wireless communication devices. [Effects of the Invention]

[0010] According to the present disclosure, by installing a moisture detection wireless communication device that detects moisture between the waterproof layer and the outdoor concrete of a building and on the indoor concrete surface, it is possible to grasp the deterioration of the waterproof layer and determine whether the waterproof layer needs to be repaired. Furthermore, by installing a moisture detection wireless communication device on the indoor concrete surface, it is possible to identify whether the detected moisture has permeated the waterproof layer, such as rainwater, or has arisen from condensation from inside the building, thereby more accurately grasping the deterioration of the waterproof layer and determining whether the waterproof layer needs to be repaired. [Brief explanation of the drawings]

[0011] [Figure 1] FIG. 1 is a diagram showing an overview of a modification detection device 10. [Figure 2] FIG. 2 is a diagram illustrating a hardware configuration of the moisture detecting wireless communication device 1000. [Figure 3] FIG. 1 is a block diagram showing basic functions of a moisture detecting wireless communication device 1000. [Figure 4] FIG. 11 is a diagram showing the hardware configuration of a pH detection wireless communication device 1100. [Figure 5]FIG. 11 is a block diagram showing the basic functions of a pH detecting wireless communication device 1100. [Figure 6] FIG. 2 is a diagram illustrating a hardware configuration of a receiver 200. [Figure 7] FIG. 2 is a block diagram showing the basic functions of a receiver 200. [Figure 8] 10 is a flowchart showing an example of a control process when the receiver 200 detects modification. [Figure 9] 1 is a diagram showing an overview of a modification detection system 1. FIG. DETAILED DESCRIPTION OF THE INVENTION

[0012] Hereinafter, embodiments of the present disclosure will be described with reference to the drawings. Note that the embodiments described below do not unduly limit the content of the present disclosure described in the claims. Furthermore, not all of the components shown in the embodiments are necessarily essential components of the present disclosure.

[0013] <Explanation of the modification detection device> 1 is a diagram showing an overview of a modification detection device 10, showing a vertical cross section of a building wall. The modification detection device 10 comprises a moisture detection wireless communication device 1000 (and / or a pH detection wireless communication device 1100). The modification detection device 10 may also include a receiver 200.

[0014] In the renovation detection device 10, two moisture detection wireless communication devices 1000 (or pH detection wireless communication devices 1100) are installed. The first moisture detection wireless communication device 1000 (or pH detection wireless communication device 1100) is installed between the waterproof layer 330 and the outdoor concrete 311 in the building 300. The second moisture detection wireless communication device 1000 (or pH detection wireless communication device 1100) is installed on the surface of the indoor concrete 312. Specifically, the moisture detection wireless communication device 1000 (or pH detection wireless communication device 1100) is fixed to the building 300 with double-sided tape, adhesive, or the like, and the waterproof layer 330 is constructed on top of it.

[0015] By installing the first moisture detection wireless communication device 1000 between the waterproof layer 330 and the outdoor concrete 311, it becomes possible to detect deterioration of the waterproof layer 330 through moisture detection without destroying the components of the building 300. This makes it possible to detect deterioration of the waterproof layer 330 early, easily, and non-destructively, and to appropriately determine whether or not repairs are necessary, thereby encouraging repairs and protecting the components of the building 300, including the reinforcing bars 320.

[0016] By installing the second moisture detection wireless communication device 1000 on the indoor concrete 312, it is possible to more accurately detect deterioration of the waterproof layer 330. The first moisture detection wireless communication device 1000 detects moisture that has infiltrated from outside the waterproof layer 330 due to deterioration of the waterproof layer 330. However, if moisture infiltrates from the indoor side (the indoor concrete 312 side) due to condensation or the like, the first moisture detection wireless communication device 1000 may erroneously detect moisture even though the waterproof layer 330 is not deteriorated. Therefore, by installing the second moisture detection wireless communication device 1000 and keeping track of the moisture on the indoor side, it is possible to more accurately detect moisture from the outdoors due to deterioration of the waterproof layer 330.

[0017] Furthermore, by installing the first moisture detection wireless communication device 1000 (or pH detection wireless communication device 1100) between the waterproof layer 330 and the outdoor concrete 311 and installing the second moisture detection wireless communication device 1000 (or pH detection wireless communication device 1100) on the indoor concrete 312, it becomes possible to install the renovation detection device 10 not only when constructing a new building 300, but also when renovating it.

[0018] The moisture detection wireless communication device 1000 can be configured using circuits known as RFID (Radio Frequency Identification), RF tags, IC tags, wireless tags, etc. The moisture detection wireless communication device 1000 is fixed to the outdoor concrete 311, and a waterproof layer 330 is constructed on top of it, so that the device is covered by the waterproof layer 330. The moisture detection wireless communication device 1000 receives radio waves emitted from the receiver 200, receives power, and communicates wirelessly with the receiver 200. By configuring the moisture detection wireless communication device 1000 using a small circuit such as RFID, it can be installed between the outdoor concrete 311 and the waterproof layer 330. In addition, by being installed and covered under the waterproof layer 330, the moisture detection wireless communication device 1000 is protected from rain, wind, and ultraviolet rays. Furthermore, the moisture detection wireless communication device 1000 can be installed without affecting aesthetics.

[0019] The receiver 200 transmits radio waves to the moisture detection wireless communication device 1000 and communicates wirelessly with it. The receiver 200 is covered with a waterproof layer 330 applied on top of the moisture detection wireless communication device 1000, but if the waterproof layer 330 deteriorates and allows rainwater or the like to seep in, the moisture detection wireless communication device 1000 will detect moisture.

[0020] The building 300 includes an exterior concrete layer 311, an interior concrete layer 312, reinforcing bars 320, and a waterproof layer 330. In addition to these, the building 300 may also include paint, decorative panels, wallpaper, and other components.

[0021] 1 is a diagram illustrating the installation of the modification detection device 10 on the wall of a building, but it can also be installed on the ceiling. In this case, the building 300 is configured as if rotated 90 degrees clockwise.

[0022] The target building 300 is a structure in which a waterproof layer 330 is applied to protect reinforced concrete, but in addition to buildings such as buildings, it can also be a fixed structure on land that uses reinforced concrete to install a waterproof layer 330, such as a bridge.

[0023] (Description of the moisture detection wireless communication device 1000) 2 is a diagram showing the hardware configuration of the moisture detection wireless communication device 1000. The moisture detection wireless communication device 1000 includes an antenna 1011, a control circuit 1012, and a moisture detection circuit 1013. In addition to these, the device may also include a memory 1014, a CPU (Central Processing Unit), and a volatile memory.

[0024] The antenna 1011 transmits or receives radio waves to perform wireless communication with the receiver 200 .

[0025] The control circuit 1012 is a circuit for controlling the moisture detection wireless communication device 1000. For example, it includes a circuit for modulating and demodulating radio waves transmitted and received by the antenna 1011, a circuit for supplying power from radio waves received by the antenna 1011, a circuit for receiving a signal from the moisture detection circuit 1013, a circuit for reading data from the memory 1014, and a circuit for writing data to the memory 1014.

[0026] The control circuit 1012 is connected to the antenna 1011, demodulates radio waves received by the antenna 1011, and modulates data to transmit it via the antenna 1011. The control circuit 1012 receives a signal from the moisture detection circuit 1013 and detects moisture. The control circuit 1012 is also connected to a memory 1014, and writes data to the memory 1014 and reads data from the memory 1014.

[0027] The moisture detection circuit 1013 detects moisture. For example, the moisture detection circuit 1013 can be configured by using a thin conductive wire to sense the flow of current, and when moisture is present, the flow of electricity in the conductive wire is blocked, thereby detecting moisture. Furthermore, by changing the type and thickness of the conductive wire, it is possible to detect moisture depending on the amount of moisture. This makes it possible to detect the amount of moisture. However, the moisture detection circuit 1013 is not limited to this configuration, and may be configured to detect moisture using existing technology, etc. The moisture detection circuit 1013 is connected to the control circuit 1012, and can read a signal from the control circuit 1012 when moisture is detected.

[0028] The memory 1014 stores data. The data stored in the memory 1014 includes information such as the date and time when moisture was detected, the presence or absence of moisture, and the amount of moisture. The memory 1014 is realized by a non-volatile memory, and retains the stored data even when the power is turned off.

[0029] By installing the memory 1014 in the moisture detecting wireless communication device 1000, it becomes possible to store a time-series data DB 1024 on the building 300.

[0030] By creating the moisture detecting wireless communication device 1000 with such a circuit configuration, it is possible to achieve a small size, and it becomes possible to install it by attaching it to the surface of concrete.

[0031] (Explanation of the Functions of the Moisture Detecting Wireless Communication Device 1000) 3 is a block diagram for explaining the basic functions of the moisture detection wireless communication device 1000. The moisture detection wireless communication device 1000 includes a communication unit 1021, a storage unit 1022, and a control unit 1023.

[0032] The communication unit 1021 performs processing for communicating with the receiver 200. For example, the communication unit 1021 communicates with the receiver 200 and transmits to the receiver 200 data relating to moisture detection information, such as the date and time, whether moisture was detected, and the amount of moisture detected, read from the storage unit 1022 via the control unit.

[0033] The storage unit 1022 stores data related to the moisture detection wireless communication device 1000. For example, the storage unit 1022 may store data such as date and time, whether moisture was detected, and the amount of moisture detected in the historical data DB 1024. The storage unit 1022 may also store location information and an identifier (ID) related to the location where the measurement was performed.

[0034] By providing the moisture detection wireless communication device 1000 with a memory unit 1022, data can be stored together with the building 300 rather than in a system or medium separate from the building 300, which helps prevent data loss.

[0035] The control unit 1023 controls the operation of the moisture detection wireless communication device 1000 using the control circuit 1012 of the moisture detection wireless communication device 1000. Specifically, the control unit 1023 includes a circuit for supplying power to the moisture detection wireless communication device 1000, for example, by using electromagnetic induction of radio waves received by the antenna 1011. The control unit 1023 also demodulates data received by the communication unit 1021 from the receiver 200, and modulates data for the communication unit 1021 to transmit to the receiver 200. The control unit 1023 also reads data related to moisture detection information, such as date and time, whether or not moisture was detected, and the amount of moisture detected, from the storage unit 1022, or writes and stores data related to moisture detection information, such as date and time, whether or not moisture was detected, and the amount of moisture detected, into the storage unit 1022.

[0036] Supplying power using electromagnetic induction of radio waves received by the antenna 1011 has the advantage of eliminating the need for a storage device or wiring for power supply, making it possible to reduce the size, and making it easy to install the moisture detection wireless communication device 1000 between the waterproof layer 330 and the outdoor concrete 311.

[0037] The renovation detection device 10 uses a moisture detection wireless communication device 1000 that is small and can be installed between the waterproofing layer 330 and the outdoor concrete 311, making it easy to install with a simple device and offering great economic benefits. Furthermore, since installation between the waterproofing layer 330 and the outdoor concrete 311 can be done not only during new construction, but also after new construction, such as during renovation, it can be installed not only in new buildings but also in existing buildings.

[0038] (Explanation of pH detection wireless communication device 1100) 4 is a diagram showing the hardware configuration of the pH detection wireless communication device 1100. The pH detection wireless communication device 1100 includes an antenna 1011, a control circuit 1012, and a moisture detection circuit 1013, which are similar to those of the moisture detection wireless communication device 1000. The pH detection wireless communication device 1100 further includes a pH detection circuit 1115. In addition to these, the device may also include a memory 1014, a CPU (Central Processing Unit), and a volatile memory.

[0039] The antenna 1011, control circuit 1012, and moisture detection circuit 1013 are the same as those of the moisture detection wireless communication device 1000, but the control circuit 1012 of the pH detection wireless communication device 1100 can also receive signals from the pH detection circuit 1115 to obtain pH detection information related to pH.

[0040] The pH detection circuit 1115 detects pH. For example, the pH detection circuit 1115 is configured using an ISFET (Ion Sensitive Field Effect Transistor). By using an ISFET, it is possible to make the circuit smaller than a pH measuring device that uses a glass electrode, and by combining it with RFID, it is possible to perform pH measurement while supplying current via radio waves. However, the pH detection circuit 1115 is not limited to this configuration, and may be configured to be capable of pH detection using existing technology, etc. The pH detection circuit 1115 is connected to the control circuit 1012, and the detected pH detection information can be read from the control circuit 1012.

[0041] The memory 1014 is similar to that of the moisture detecting wireless communication device 1000, but in addition to moisture, it can also store pH detection information relating to the detected pH as a time-series data DB 1124.

[0042] By creating the pH detecting wireless communication device 1100 with such a circuit configuration, it is possible to achieve a small size, and it becomes possible to install it by attaching it to the surface of concrete.

[0043] (Explanation of the pH detection wireless communication device 1100 functions) 5 is a block diagram for explaining the basic functions of the pH detecting wireless communication device 1100. The moisture detecting wireless communication device 1100 includes a communication unit 1021, a storage unit 1122, and a control unit 1123.

[0044] The communication unit 1021 is the same as the communication unit 1021 of the moisture detection wireless communication device 1000 .

[0045] The storage unit 1122 stores data stored by the pH detection wireless communication device 1100. For example, the storage unit 1122 stores data such as date and time, whether or not moisture was detected, the amount of moisture detected, and the pH value in a time-series data DB 1124. The storage unit 1122 may also store location information and an identifier (ID) relating to the location where the measurement was performed.

[0046] The control unit 1123 controls the operation of the pH detection wireless communication device 1100 using the control circuit 1012 of the pH detection wireless communication device 1100. Specifically, the control unit 1123 includes a circuit for supplying power to the pH detection wireless communication device 1100, for example, by using electromagnetic induction of radio waves received by the antenna 1011. The control unit 1123 also demodulates data received by the communication unit 1021 from the receiver 200, and modulates data for the communication unit 1021 to transmit to the receiver 200. The control unit 1123 also reads information such as date and time, whether or not moisture has been detected in the moisture detection information, the amount of detected moisture, and the pH value in the pH detection information from the storage unit 1122, or writes and stores information such as date and time, whether or not moisture has been detected in the moisture detection information, the amount of detected moisture, and the pH value in the pH detection information into the storage unit 1122.

[0047] The renovation detection device 10 uses a small pH detection wireless communication device 1100 that can be installed between the waterproof layer 330 and the outdoor concrete 311, making it easy to install with a simple device and offering great economic benefits. Furthermore, since installation between the waterproof layer 330 and the outdoor concrete 311 can be done not only during new construction, but also after new construction, such as during renovation, it can be installed not only in new buildings but also in existing buildings.

[0048] (Explanation of receiver 200) 6 is a diagram showing the hardware configuration of receiver 200. Receiver 200 can be configured using a general-purpose computer.

[0049] As shown in FIG. 6, the receiver 200 includes a processor 201, a memory 202, a storage 203, a communication IF 204 (note that IF is written as an abbreviation for Interface), and an input / output IF 205.

[0050] The processor 201 is hardware for executing an instruction set written in a program and is composed of an arithmetic unit, registers, peripheral circuits, etc. The memory 202 temporarily stores programs and data processed by the programs, etc., and is implemented by, for example, a volatile memory such as a dynamic random access memory (DRAM). The storage 203 is a storage device for saving data such as programs, and is implemented by, for example, a flash memory, a solid state drive (SSD), or a hard disk drive (HDD). The communication IF 204 is an interface for transmitting and receiving signals so that the receiver 200 can communicate with the moisture detection wireless communication device 1000 or the pH detection wireless communication device 1100. For example, the communication IF 204 includes an interface for transmitting and receiving signals for reading and writing data between the moisture detection wireless communication device 1000 and / or the pH detection wireless communication device 1100. The input / output IF 205 functions as an interface for input devices such as a keyboard, mouse, and numeric keypad for receiving input from a user, and for output devices such as a display for presenting information to a user.

[0051] 7 is a block diagram for explaining the basic functions of receiver 200. Receiver 200 includes a communication unit 210, a storage unit 220, and a control unit 230.

[0052] The communication unit 210 performs processing for communicating with the moisture detection wireless communication device 1000 or the pH detection wireless communication device 1100. For example, the communication unit 210 of the receiver 200 performs wireless communication with the moisture detection wireless communication device 1000 or the pH detection wireless communication device 1100, and acquires data stored in the moisture detection wireless communication device 1000 or the pH detection wireless communication device 1100, such as the date and time, whether or not moisture was detected in the moisture detection information, the amount of moisture, and the pH value in the pH detection information, via the communication unit 1021 of the moisture detection wireless communication device 1000 or the pH detection wireless communication device 1100, and / or transmits the data via the communication unit 1021.

[0053] The storage unit 220 stores data and programs used by the receiver 200.

[0054] The control unit 230 is realized by the processor 201 of the receiver 200 reading a program stored in the storage unit 220 and executing instructions included in the program. The control unit 230 controls the operation of the receiver 200. Specifically, the control unit 230 fulfills the functions of a transmission / reception unit 231 and a modification detection unit 232.

[0055] The transmitting / receiving unit 231 communicates with the moisture detection wireless communication device 1000 or the pH detection wireless communication device 1100 via the communication unit 210, and receives and acquires data such as the date and time, whether moisture was detected or not in relation to the moisture detection information, the amount of moisture, and the pH value in relation to the pH detection information, stored in the moisture detection wireless communication device 1000 or the pH detection wireless communication device 1100. The transmitting / receiving unit 231 also displays the acquired data via the input / output IF 205.

[0056] The transmitter / receiver unit 231 communicates with the moisture detection wireless communication device 1000 or the pH detection wireless communication device 1100 via the communication unit 210, and transmits data input via the input / output IF 205 and data calculated by other functions of the control unit 230 to the moisture detection wireless communication device 1000 or the pH detection wireless communication device 1100, and stores the data in the memory unit 1022 or 1122 of the moisture detection wireless communication device 1000 or the pH detection wireless communication device 1100.

[0057] (Method for detecting whether or not modification is required by the modification detection device 10) The repair detection unit 232 uses the information acquired by the transmission / reception unit 231 to determine whether the repair detection device 10 needs to repair the waterproof layer 330.

[0058] First, the moisture detection wireless communication device 1000 or the pH detection wireless communication device 1100 can detect the amount of moisture, and can detect it in the range of 0 (no moisture detected), 1 (low moisture amount) to N (high moisture amount). Furthermore, the pH detection wireless communication device 1100 can detect the pH of the outdoor concrete 311 or indoor concrete 312 on which it is installed.

[0059] Furthermore, the moisture detection information (here, moisture amount detection information) and the pH detection information are referred to as first moisture detection information and first pH detection information, respectively, when the moisture detection wireless communication device 1000 or the pH detection wireless communication device 1100 is installed on the outdoor concrete 311. The moisture detection information (here, moisture amount detection information) and the pH detection information (pH value) are referred to as second moisture detection information and second pH detection information, respectively, when the moisture detection wireless communication device 1000 or the pH detection wireless communication device 1100 is installed on the indoor concrete 312.

[0060] 1, a first moisture detection wireless communication device 1000 is installed on the outdoor concrete 311, and a second moisture detection wireless communication device 1000 is installed on the indoor concrete 312. In this case, the repair detection unit 232 can acquire first moisture detection information from the first moisture detection wireless communication device 1000, and second moisture detection information from the second moisture detection wireless communication device 1000.

[0061] The repair detection unit 232 may grasp the deterioration of the waterproof layer 330 and detect whether repair is necessary when the first moisture detection information exceeds a certain threshold T. On the other hand, although the first moisture detection information is likely to indicate that moisture has infiltrated from the outdoors due to deterioration of the waterproof layer 330, there is also a possibility that moisture has infiltrated due to condensation from the indoors.

[0062] To address the above problem, the repair detection unit 232 may use the difference between the first moisture detection information and the second moisture detection information to determine the deterioration of the waterproof layer 330 and detect the need for repair. Specifically, if there is a lot of condensation from the indoor side, the value of the second moisture detection information will be large. Also, if there is a lot of water leakage from the outdoor side, the value of the first moisture detection information will be large. Therefore, if the difference between the first moisture detection information and the second moisture detection information exceeds a threshold T, the deterioration of the waterproof layer 330 may be determined and it may be detected that repair is necessary.

[0063] In this way, the repair detection unit 232 can take into consideration the influence of indoor condensation by using both the first moisture detection information and the second moisture detection information, and can more accurately determine whether repair is necessary.

[0064] 1, the pH detection wireless communication device 1100 is installed on the outdoor concrete 311, and the moisture detection wireless communication device 1000 is installed on the indoor concrete 312. In this case, the repair detection unit 232 can acquire the first moisture detection information and the first pH detection information from the pH detection wireless communication device 1100, and can acquire the second moisture detection information from the moisture detection wireless communication device 1000.

[0065] The repair detection unit 232 may recognize deterioration of the waterproof layer 330 and detect that repair is necessary when the first moisture detection information exceeds a certain threshold T and / or the first pH detection information falls below a threshold V (when the pH changes from alkaline to more acidic).

[0066] In general, in reinforced concrete buildings, it is believed that neutralization is in progress when the pH of concrete, which is naturally alkaline, is 10 or less, and that there is a risk of corrosion of the reinforcing bars when the pH of concrete falls to 9 or less. Therefore, the need for renovation may be detected using a threshold value when the first pH information reaches 9.5 or less.

[0067] The repair detection unit 232 may detect deterioration of the waterproof layer 330 and detect whether repair is necessary when the difference between the first moisture detection information and the second moisture detection information exceeds a threshold value T and / or the first pH detection information falls below a threshold value V.

[0068] By using the first pH detection information, the repair detection unit 232 can grasp the progress of neutralization of the outdoor concrete 311 and accurately determine whether repair is necessary. Furthermore, by using both the first moisture detection information and the second moisture detection information, it is possible to appropriately detect water leakage due to deterioration of the waterproof layer 330, taking into account the influence of condensation on the indoor side, and accurately determine whether repair is necessary.

[0069] 1, a first pH detection wireless communication device 1100 is installed on the outdoor concrete 311, and a second pH detection wireless communication device 1100 is installed on the indoor concrete 312. In this case, the repair detection unit 232 can acquire first moisture detection information and first pH detection information from the first pH detection wireless communication device 1100, and can acquire second moisture detection information and second pH detection information from the second pH detection wireless communication device 1100.

[0070] The repair detection unit 232 may determine the deterioration of the waterproof layer 330 and determine whether repair is necessary when the first moisture detection information exceeds a certain threshold T and / or when the difference between the first pH detection information and the second pH detection information exceeds a threshold V. Because the second pH detection wireless communication device 1100 is installed on the indoor side, the indoor-side concrete 312 on which it is installed is likely to maintain its initial alkalinity. On the other hand, because the first pH detection wireless communication device 1100 is installed on the outdoor side, if the waterproof layer 330 deteriorates, rainwater will infiltrate, and the outdoor-side concrete 311 on which it is installed will become neutralized (acidified) depending on the degree and duration of deterioration of the waterproof layer 330. Therefore, the difference between the first pH detection information and the second pH detection information can be considered as a measure of the deterioration of the waterproof layer 330.

[0071] By using the first pH detection information and the second pH detection information, the repair detection unit 232 can detect the degree of neutralization of the concrete used in the building 300 and accurately determine whether repair is necessary. Furthermore, by using both the first moisture detection information and the second moisture detection information, it is possible to appropriately detect water leakage due to deterioration of the waterproof layer 330, taking into account the influence of condensation on the indoor side, and accurately determine whether repair is necessary.

[0072] As described above, the repair detection unit 232 can grasp the deterioration of the waterproof layer 330 and determine whether repair is necessary, but if the repair detection device 10 determines that repair is necessary, a secondary repair necessity determination may be made using conventional methods, such as determining the neutralization of the concrete using a phenolphthalein solution or performing concrete core drilling. However, in this case, it may not be possible to perform the same simple and non-destructive method as the repair detection device 10, and a certain degree of scale and effort will be required.

[0073] (Use of longitudinal data) The moisture detecting wireless communication device 1000 may store the date and time, whether or not moisture was detected in the moisture detection information, and the amount of moisture detected in the temporal data DB 1024, and the pH detecting wireless communication device 1100 may store information such as the date and time, whether or not moisture was detected in the moisture detection information, the amount of moisture detected, and the pH value in the pH detection information in the temporal data DB 1124. In this case, by storing information at multiple points in time, the temporal data may be used to predict deterioration of the waterproof layer 330 and predict the time for repair.

[0074] The repair detection unit 232 may predict the time for repair using information from the time-series data DB1024 or the time-series data DB1124, such as the measurement date and time, whether or not moisture was detected in the moisture detection information, the moisture amount, and pH information in the pH detection information.

[0075] The repair detection unit 232 may use the time-series data of the first moisture detection information to predict when the first moisture detection information is expected to exceed the threshold value T, and thereby predict the time for repair.

[0076] Specifically, future predictions may be made using statistical methods such as regression analysis, moving average, and exponential smoothing on data such as the measurement date and time stored in the time-series data DB1124 or the moisture content in the first moisture detection information, to predict the time when the first moisture detection information is expected to exceed the threshold value T. Similarly, future predictions for the following predictions may also be made using statistical methods such as regression analysis, moving average, and exponential smoothing.

[0077] The repair detection unit 232 may use the measurement date and time and the time-series data of the difference between the first moisture detection information and the second moisture detection information to predict the time when the difference between the first moisture detection information and the second moisture detection information is expected to exceed the threshold value T, thereby predicting the time for repair.

[0078] The repair detection unit 232 may use the measurement date and time and the time-series data of the first pH detection information to predict the time when the first pH detection information is expected to fall below the threshold value V (a value indicating neutral or acidic), and thereby predict the time for repair.

[0079] If the pH of concrete falls below 9, there is a risk of rebar corrosion, so for example, when the first pH detection information falls below 9.5, this is one indicator for repairing the waterproof layer 330 or the concrete itself. Furthermore, if the time-dependent information is available, for example, if the pH falls by 0.5 or more (becomes more acidic) in one year, it may be determined that the concrete is rapidly becoming neutralized (acidified), and it may be determined that it is time to repair the waterproof layer 330 or the concrete.

[0080] The repair detection unit 232 may use the measurement date and time and the time-series data of the first pH detection information and the second pH detection information to predict the time when the difference between the first pH detection information and the second pH detection information is expected to exceed the threshold value V (the difference in pH value between the outdoor concrete 311 and the indoor concrete 312 will become large), and thereby predict the time for repair.

[0081] In this way, by using historical data, it is possible not only to determine whether or not repairs are necessary now, but also to predict when repairs will be necessary, which makes it possible to grasp information such as when the funds required for repairs need to be saved.

[0082] By using the first pH detection information, the repair detection unit 232 can grasp the progress of carbonation of the outdoor concrete 311 and accurately determine whether repair is required. Also, by using the first pH detection information and the second pH detection information, it is possible to detect the degree of carbonation of the concrete used in the building 300 and accurately determine whether repair is required. Furthermore, by using both the first moisture detection information and the second moisture detection information, it is possible to appropriately detect water leakage due to deterioration of the waterproof layer 330, taking into account the influence of condensation on the indoor side, and accurately determine whether repair is required.

[0083] (Explanation of effect) The configuration of the renovation detection device 10 has been explained above. By installing a moisture detection wireless communication device 1000 or a pH detection wireless communication device 1100 on the outdoor concrete 311 and the indoor concrete 312, respectively, it is possible to accurately detect whether or not the waterproof layer 330 needs to be renovated, while taking into account condensation from the indoor side.

[0084] Furthermore, the repair detection device 10 not only detects moisture but also detects pH, thereby making it possible to accurately detect whether the waterproof layer 330 needs repair.

[0085] Furthermore, by using the moisture detection wireless communication device 1000 and / or the pH detection wireless communication device 1100, the renovation detection device 10 can be easily installed on concrete, even during renovations after new construction.

[0086] (Processing flow) An example of a control process executed by the receiver 200 to detect tampering will be described below with reference to FIG.

[0087] The control unit 230 of the receiver 200 acquires information such as moisture detection information and pH detection information from the moisture detection wireless communication device 1000 or the pH detection wireless communication device 1100 via the communication unit 210 (step S101).

[0088] The control unit 230 of the receiver 200 detects deterioration of the waterproof layer 330 using the acquired information such as the moisture detection information and the pH detection information (step S102).

[0089] (Modification Detection System) The modified detection device 10 may include multiple moisture detecting radios 1000 and / or pH detecting radios 1100 and single or multiple receivers 200 configured as a modified detection system 1 .

[0090] 9 shows a configuration diagram of the modification detection system 1. For example, the modification detection system 1 is configured with a plurality of moisture detection wireless communication devices 1000-1 to 1000-N1, pH detection wireless communication devices 1100-1 to 1100-N2, and a receiver 200. Note that there may be one or more receivers 200.

[0091] The receiver 200 is capable of communicating with the moisture detection wireless communication devices 1000-1 to 1000-N1 and the pH detection wireless communication devices 1100-1 to 1100-N2, and by communicating with these devices, obtains information regarding the necessity of repair.

[0092] When the receiver 200 communicates with the moisture detection wireless communication devices 1000-1 to 1000-N1 and the pH detection wireless communication devices 1100-1 to 1100-N2 and detects that a location above the threshold T needs to be repaired, the repair detection system 1 may notify this using the interface of the receiver 200 or another interface.

[0093] When the receiver 200 communicates with the moisture detection wireless communication devices 1000-1 to 1000-N1 and the pH detection wireless communication devices 1100-1 to 1100-N2 and detects that a certain percentage or more of the locations need to be repaired, the repair detection system 1 may indicate this using the interface of the receiver 200 or another interface.

[0094] The repair detection system 1 may store location information based on a Global Positioning System (GPS) or location information on a drawing and on the drawing for the moisture detection wireless communication devices 1000-1 to 1000-N1 and the pH detection wireless communication devices 1100-1 to 1100-N2 in the receiver 200. In this case, the receiver 200 acquires the moisture detection wireless communication device 1000 or pH detection wireless communication device 1100 that is indicated as needing repair, along with its location information.

[0095] The modification detection system 1 may display information on modifications to be made along with the location information. For example, the modification detection system 1 may display the objects to be modified on a drawing using an interface of the receiver 200 or another interface as a result of the receiver 200 communicating with the moisture detection wireless communicators 1000-1 to 1000-N1 and the pH detection wireless communicators 1100-1 to 1100-N2.

[0096] When locations that need to be repaired are concentrated as a result of communication between the receiver 200 and the moisture detection wireless communication devices 1000-1 to 1000-N1 and the pH detection wireless communication devices 1100-1 to 1100-N2, the repair detection system 1 may present the targets to be repaired and their locations using an interface of the receiver 200 or another interface. For example, when there are a certain number or more locations that need to be repaired within a certain preset range (such as within r square meters), the targets to be repaired and their locations may be presented.

[0097] The repair detection system 1 can determine whether there are a certain number of locations that need repair that exceed a threshold, and what percentage of the total locations are affected, from the locations where the moisture detection wireless communication device 1000 and / or pH detection wireless communication device 1100 are installed. Ideally, repairs would be carried out if there is even one location that needs repair, but repair work is expensive, so the client needs a certain level of motivation to request the work. Therefore, by detecting a certain number of locations that need repair or more and displaying the percentage of locations that need repair, it is possible to encourage repair work.

[0098] In the repair detection system 1, by obtaining information on the locations where the moisture detection wireless communication devices 1000 and / or pH detection wireless communication devices 1100 are installed, it becomes possible to grasp the overall positional relationship of the areas that need repair. For example, in areas where there are a large number of areas that need repair, there is a high possibility that there is a reason such as poor drainage, and in some cases, it may be desirable to not only repair but also to add preparatory work such as correcting the slope. While the decision to add such preparatory work was often made based on the experience of the craftsman performing the work, by obtaining this information systematically, even a beginner worker can properly grasp the locations where preparatory work should be performed.

[0099] Although the above description of the embodiment is completed, the above embodiment is merely an example, and therefore the specific configurations, processing contents, etc. of the modified detection device 10, the moisture detection wireless communication device 1000, the pH detection wireless communication device 1100, and the receiver 200 are not limited to those described in the above embodiment.

[0100] While the preferred embodiments of the present disclosure have been described above, the present disclosure is not limited to such specific embodiments, and includes the inventions set forth in the claims and their equivalents. Furthermore, the device configurations described in the above embodiments and modifications can be combined as appropriate as long as no technical contradiction occurs. [Explanation of symbols]

[0101] 10...Renovation detection device, 1000...Moisture detection wireless communication device, 1011...Antenna, 1012...Control circuit, 1013...Moisture detection circuit, 1014...Memory, 1021...Communication unit, 1022, 1122...Storage unit, 1023, 1123...Control unit, 1024, 1124...Temporal data DB, 1100...pH detection wireless communication device, 1115...pH detection circuit, 200...Receiver, 201...Processor, 202...Memory, 203...Storage, 204...Communication IF, 205...Input / output IF, 210...Communication unit, 220...Memory unit, 230...Control unit, 231...Transmitter / receiver unit, 232...Renovation detection unit, 300...Building, 311...Outdoor concrete, 312...Indoor concrete, 320...Reinforcing bar, 330...Waterproof layer

Claims

1. A device for detecting whether or not a waterproofing layer applied to concrete constituting a building needs repair, a first moisture detection wireless communication device provided between an exterior concrete surface of the building and a waterproof layer applied to the concrete surface; a second moisture detection wireless communication device provided on the indoor concrete surface of the building, The first moisture detection radio communication device and the second moisture detection radio communication device each include an antenna that receives radio waves emitted from a receiver, a control circuit that is powered by the radio waves, and a moisture detection circuit that detects moisture.

2. A device for detecting whether or not a waterproofing layer applied to concrete constituting a building needs repair, a first moisture detection wireless communication device provided between an exterior concrete surface of the building and a waterproof layer applied to the concrete surface; a second moisture detecting wireless communication device provided on the indoor concrete surface of the building; a receiver for communicating with the first moisture detection wireless communication device and / or the second moisture detection wireless communication device via radio waves; the first moisture detection wireless communication device and the second moisture detection wireless communication device each have an antenna that receives radio waves emitted from the receiver, a control circuit that receives power from the radio waves, and a moisture detection circuit that detects moisture; The receiver is a modification detection device having a transceiver unit that communicates with the first moisture detection wireless communication device and / or the second moisture detection wireless communication device to send and receive data, and a modification detection unit that detects whether modification is necessary based on moisture detection information obtained by the transceiver unit from the first moisture detection wireless communication device and / or the second moisture detection wireless communication device.

3. A device for detecting whether or not a waterproofing layer applied to concrete constituting a building needs repair, a first moisture detection wireless communication device provided between an exterior concrete surface of the building and a waterproof layer applied to the concrete surface; a second moisture detecting wireless communication device provided on the indoor concrete surface of the building; a receiver for communicating with the first moisture detection wireless communication device and / or the second moisture detection wireless communication device via radio waves; the first moisture detection wireless communication device and the second moisture detection wireless communication device each have an antenna that receives radio waves emitted from the receiver, a control circuit that receives power from the radio waves, and a moisture detection circuit that detects moisture; The receiver is a modification detection device having a transceiver unit that communicates with the first moisture detection wireless communication device and / or the second moisture detection wireless communication device to send and receive data, and a modification detection unit that detects whether modification is necessary based on the difference between the first moisture detection information acquired by the transceiver unit from the first moisture detection wireless communication device and the second moisture detection information acquired from the second moisture detection wireless communication device.

4. A device for detecting whether or not a waterproofing layer applied to concrete constituting a building needs repair, a pH detection wireless communication device provided between the exterior concrete surface of the building and a waterproof layer applied to the concrete surface; a moisture detection wireless communication device provided on the indoor concrete surface of the building, The moisture detection wireless communication device has an antenna for receiving radio waves emitted from a receiver, a control circuit for receiving power from the radio waves, and a moisture detection circuit for detecting moisture, The pH detection wireless communication device is a modified detection device having an antenna that receives radio waves emitted from the receiver, a control circuit that is powered by the radio waves, a moisture detection circuit that detects moisture, and a pH detection circuit that detects pH.

5. A device for detecting whether or not a waterproofing layer applied to concrete constituting a building needs repair, a pH detection wireless communication device provided between the exterior concrete surface of the building and a waterproof layer applied to the concrete surface; a moisture detection wireless communication device provided on the indoor concrete surface of the building; a receiver for communicating with the moisture detection wireless communication device and / or the pH detection wireless communication device via radio waves, The moisture detection wireless communication device has an antenna for receiving radio waves emitted from a receiver, a control circuit for receiving power from the radio waves, and a moisture detection circuit for detecting moisture, The pH detection wireless communication device includes an antenna for receiving radio waves emitted from the receiver, a control circuit for receiving power from the radio waves, a moisture detection circuit for detecting moisture, and a pH detection circuit for detecting pH, The receiver is a modification detection device having a transceiver unit that communicates with the moisture detection wireless communication device and / or the pH detection wireless communication device to send and receive data, and a modification detection unit that detects whether modification is necessary based on the moisture detection information and / or pH detection information obtained from the moisture detection wireless communication device and / or the pH detection wireless communication device by the transceiver unit.

6. A device for detecting whether or not a waterproofing layer applied to concrete constituting a building needs repair, a pH detection wireless communication device provided between the exterior concrete surface of the building and a waterproof layer applied to the concrete surface; a moisture detection wireless communication device provided on the indoor concrete surface of the building; a receiver for communicating with the moisture detection wireless communication device and / or the pH detection wireless communication device via radio waves, The moisture detection wireless communication device has an antenna for receiving radio waves emitted from a receiver, a control circuit for receiving power from the radio waves, and a moisture detection circuit for detecting moisture, The pH detection wireless communication device includes an antenna for receiving radio waves emitted from the receiver, a control circuit for receiving power from the radio waves, a moisture detection circuit for detecting moisture, and a pH detection circuit for detecting pH, The receiver is a modification detection device having a transceiver unit that communicates with the moisture detection wireless communication device and / or the pH detection wireless communication device to send and receive data, and a modification detection unit that detects whether modification is necessary based on the difference between first moisture detection information acquired by the transceiver unit from the moisture detection wireless communication device and second moisture detection information acquired from the pH detection wireless communication device and the pH detection information acquired from the pH detection wireless communication device.

7. A device for detecting whether or not a waterproofing layer applied to concrete constituting a building needs repair, a first pH detecting wireless communication device provided between an exterior concrete surface of the building and a waterproof layer applied to the concrete surface; a second pH detecting wireless communication device provided on an indoor concrete surface of the building, The first pH detection wireless communication device and the second pH detection wireless communication device each include an antenna that receives radio waves emitted from a receiver, a control circuit that receives power from the radio waves, a moisture detection circuit that detects moisture, and a pH detection circuit that detects pH, which are modified detection devices.

8. A device for detecting whether or not a waterproofing layer applied to concrete constituting a building needs repair, a first pH detecting wireless communication device provided between an exterior concrete surface of the building and a waterproof layer applied to the concrete surface; a second pH detecting wireless communication device provided on a concrete surface inside the building; a receiver for communicating with the first pH detection wireless communication device 1 and / or the second pH detection wireless communication device via radio waves; the first pH detection wireless communication device and the second pH detection wireless communication device each have an antenna for receiving radio waves emitted from the receiver, a control circuit for receiving power from the radio waves, a moisture detection circuit for detecting moisture, and a pH detection circuit for detecting pH, The receiver is a modification detection device having a transceiver unit that communicates with the first pH detection wireless communication device and / or the second pH detection wireless communication device to send and receive data, and a modification detection unit that detects whether modification is necessary based on the moisture detection information and / or pH detection information obtained by the transceiver unit from the first pH detection wireless communication device and / or the second pH detection wireless communication device.

9. A device for detecting whether or not a waterproofing layer applied to concrete constituting a building needs repair, a first pH detecting wireless communication device provided between an exterior concrete surface of the building and a waterproof layer applied to the concrete surface; a second pH detecting wireless communication device provided on a concrete surface inside the building; a receiver for communicating with the first pH detection wireless communication device and / or the second pH detection wireless communication device via radio waves; the first pH detection wireless communication device and the second pH detection wireless communication device each have an antenna for receiving radio waves emitted from the receiver, a control circuit for receiving power from the radio waves, a moisture detection circuit for detecting moisture, and a pH detection circuit for detecting pH, The receiver is a modification detection device having a transceiver unit that communicates with the first pH detection wireless communication device and / or the second pH detection wireless communication device to send and receive data, and a modification detection unit that detects whether modification is necessary based on the difference between the first moisture detection information acquired by the transceiver unit from the first pH detection wireless communication device and the second moisture detection information acquired from the second pH detection wireless communication device, and the pH detection information acquired from the first pH detection wireless communication device and / or the second pH detection wireless communication device.

10. The modification detection device according to any one of claims 2, 3, 5, 6, 8 and 9, wherein the first moisture detection wireless communication device or pH detection wireless communication device and the second moisture detection wireless communication device or pH detection wireless communication device each further have a memory for storing the detected moisture detection information and / or the detected pH detection information together with information on the measurement date and time.

11. the first moisture detection wireless communication device or pH detection wireless communication device and the second moisture detection wireless communication device or pH detection wireless communication device each further have a memory for storing the detected moisture detection information and / or the detected pH detection information together with information on the measurement date and time; 10. The repair detection device according to claim 2, wherein the receiver detects the time for repair using the measurement date and time information, the moisture detection information and / or the pH detection information.

12. A system for detecting whether a waterproofing layer applied to concrete constituting a building needs repair, a plurality of first moisture detection wireless communication devices or pH detection wireless communication devices provided between an outdoor concrete surface of the building and a waterproof layer applied to the outdoor concrete surface; a plurality of second moisture detection wireless communication devices or pH detection wireless communication devices provided on an indoor concrete surface of the building; a receiver for communicating with the first moisture detection wireless communication device or pH detection wireless communication device and / or the second moisture detection wireless communication device or pH detection wireless communication device via radio waves; the first moisture detection wireless communication device or pH detection wireless communication device and the second moisture detection wireless communication device or pH detection wireless communication device each have an antenna for receiving radio waves emitted from the receiver, a control circuit for receiving power from the radio waves, and a moisture detection circuit for detecting moisture and / or a pH detection circuit for detecting pH, The receiver has a transceiver unit that communicates with the first moisture detection wireless communication device or pH detection wireless communication device and / or the second moisture detection wireless communication device to transmit and receive data, and a modification detection unit that detects whether modification is required based on moisture detection information and / or pH detection information acquired by the transceiver unit from the first moisture detection wireless communication device or pH detection wireless communication device and / or the second moisture detection wireless communication device or pH detection wireless communication device, The modification detection unit communicates with the first moisture detection wireless communication device or pH detection wireless communication device and / or the second moisture detection wireless communication device or pH detection wireless communication device, and as a result, presents the number and / or percentage of communications that are detected as requiring modification.

13. A system for detecting whether a waterproofing layer applied to concrete constituting a building needs repair, a plurality of first moisture detection wireless communication devices or pH detection wireless communication devices provided between an outdoor concrete surface of the building and a waterproof layer applied to the outdoor concrete surface; a plurality of second moisture detection wireless communication devices or pH detection wireless communication devices provided on an indoor concrete surface of the building; a receiver for communicating with the first moisture detection wireless communication device or pH detection wireless communication device and / or the second moisture detection wireless communication device or pH detection wireless communication device via radio waves; the first moisture detection wireless communication device or pH detection wireless communication device and the second moisture detection wireless communication device or pH detection wireless communication device each have an antenna for receiving radio waves emitted from the receiver, a control circuit for receiving power from the radio waves, and a moisture detection circuit for detecting moisture and / or a pH detection circuit for detecting pH, The receiver has a transceiver unit that communicates with the first moisture detection wireless communication device or pH detection wireless communication device and / or the second moisture detection wireless communication device or pH detection wireless communication device to transmit and receive data, and a modification detection unit that detects whether modification is required based on moisture detection information and / or pH detection information acquired by the transceiver unit from the first moisture detection wireless communication device or pH detection wireless communication device and / or the second moisture detection wireless communication device or pH detection wireless communication device, The repair detection unit acquires location information of the first moisture detection wireless communication device or pH detection wireless communication device and / or the second moisture detection wireless communication device or pH detection wireless communication device that communicated when detecting whether repair is necessary, and indicates the location where repair is required.

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