JP4553748B2 - Building inspection system - Google Patents

Description

  The present invention relates to a building inspection system such as a house, and more specifically to a building inspection system using an IC tag.

  When the building is completed, it is necessary to check whether or not the building components are attached at appropriate positions and in appropriate directions. Recently, many standardized components are often used for mass production, and in addition to checking the number of components, it is important to check whether they are assembled in the correct position. It is. Conventionally, this inspection work has been performed by an inspector directly viewing the building components.

  Note that there is a method of managing the history information of a member by attaching an IC tag to a component member of the building, but it has not been used for inspection of assembly of the building.

JP 2004-37902 A

  However, when the building is completed, the structural member may be hidden behind other structural members. In this case, if the label attached to the constituent member and displaying the type of the constituent member is hidden, the constituent member cannot be confirmed by visually observing the label. For this reason, it has been difficult to inspect whether the assembled components are actually assembled at the correct positions.

  The present invention solves the above-mentioned problems, and an object thereof is to inspect whether or not the constituent member is assembled at a correct position without directly observing the label of the constituent member.

  In order to achieve the above object, the first configuration of the building inspection system according to the present invention obtains information on the IC tags attached to each component of the building and obtains relative position information between all the IC tags arranged in the building. Position information forming means for forming the relative position information, relative position information acquisition means for acquiring the relative position information, and completed position information storage means in which completed position information that is the relative position of the IC tag after completion of the building is stored in advance. Comparative examination means for examining whether the building is completed by comparing the relative position information between the IC tags obtained from the relative position information acquisition means and the completed position information stored in the completed position information storage means It is characterized by having.

  With the above configuration, the relative position information forming unit forms the relative position information of the IC tag attached to the constituent member. The relative position information acquisition unit acquires the relative position information and transmits the relative position information to the comparison examination unit. On the other hand, the completion position information storage means transmits the completion position information stored in advance to the comparison and examination means. The comparative examination means collates the relative position information and the completed position information, and if they match, it determines that the building component is securely assembled, and if they do not match, the building component It is determined that is not securely assembled.

  In the second configuration of the building inspection system, the position information forming unit according to the first configuration stores information on a transmission / reception unit for transmitting and receiving signals and a component member attached with the IC tag, and is transmitted and received by the transmission / reception unit. The storage means for reading and writing information by the received signal, and the control means for controlling the transmission / reception means and the storage means are integrally disposed on an IC tag attached to each of the constituent members, Relative position information between IC tags is formed by relaying information between IC tags attached to members.

  With the above configuration, the position information forming unit stores information in the storage unit based on a detection signal transmitted / received by the transmission / reception unit, and relays information between IC tags. Communicate. As described above, by relaying information between IC tags, the storage capacity of the storage means of each IC tag can be reduced. For this reason, the IC tag can be miniaturized. In addition, since the amount of information to be exchanged is small, the communication speed is increased, and the time until the relative position information is acquired and the building inspection is completed can be shortened. Furthermore, since the distance for transmitting radio waves is short, power consumption can be kept low.

  The third configuration of the building inspection system is the building inspection system of the first configuration or the second configuration, and the position information forming unit forms the relative position information while searching for an IC tag of an adjacent component. It is characterized by that.

  With the above configuration, the IC tag attached to the component member forms the relative position information while searching for the IC tag of the component member adjacent to each component member. For this reason, the assembly | attachment of the adjacent structural member can be searched reliably.

  The present invention has the configuration and operation as described above. For this reason, according to the first configuration, the position information forming means forms the relative position information between the IC tags. For this reason, even if the structural member is hidden behind the building, the inspector can inspect the structural member without directly observing the structural member. For this reason, it becomes easy to inspect whether the assembled components are actually assembled at the correct positions.

  According to the second configuration, the member information of the storage unit of the IC tag can be acquired by the relative position information acquisition unit. For this reason, even if the label which displays the kind of building component is hidden, the kind of IC tag can be recognized.

  Moreover, according to the 3rd structure, the adjacent structural member can be searched reliably. For this reason, the assembly | attachment of a three-dimensional building can be searched reliably.

  As described above, according to the present invention, it is possible to inspect whether or not the component member is assembled at the correct position without directly viewing the label of the component member.

[First Embodiment]

  An embodiment of the present invention will be described with reference to the drawings. In the description, a schematic configuration of the building inspection system, a detailed configuration of the building inspection system, a method for exchanging information between IC tags, and a method for forming relative position information using IC tags will be described in this order. The present invention is not limited to the following embodiment.

(Schematic configuration of building inspection system)
A schematic configuration of the building inspection system will be described. FIG. 1 is an explanatory diagram of components of the building inspection system 1, and FIG. 2 is an explanatory diagram of an IC tag 20 attached to the component member 10.

  As shown in FIG. 1, the building inspection system 1 according to the present embodiment is formed by position information forming means 2 constituted by IC tags 20 attached to all components of the building, and position information forming means 2. Relative position information acquisition means 3 for acquiring relative position information indicating the relative positional relationship of the IC tag 20 and a completed position in which completed position information, which is the relative position of the IC tag 20 when the building is completed, is stored in advance. The relative position information between the IC tags 20 obtained from the information storage means 4 and the relative position information acquisition means 3 is compared with the completed position information stored in the completed position information storage means 4 so that each component is correctly arranged. And comparative examination means 5 for examining whether or not there is.

  Further, as shown in FIG. 2, the position information forming means 2 includes a transmission / reception means 21 for transmitting / receiving signals and a signal transmitted / received by the transmission / reception means 21 in which information on the component member 10 with the IC tag 20 attached is stored Thus, the storage means 23 for reading and writing information and the control means 22 for controlling the transmission / reception means 21 and the storage means 23 are integrally provided on the IC tag 20 attached to each component member 10. The component member 10 shown here is a general component member to which the IC tag 20 is attached, and does not indicate a specific member.

(Detailed structure of building inspection system)
As described above, the building inspection system 1 includes the position information forming unit 2, the relative position information acquiring unit 3, the completed position information storage unit 4, and the comparative study unit 5. Next, the detailed configuration of each means will be specifically described.

  The position information forming means 2 is configured by exchanging information between the IC tags 20 attached to the respective constituent members. As shown in FIG. 2, the IC tag 20 includes an antenna 20a and a semiconductor IC chip 20b. Information exchange between the IC tags 20 will be described in detail later.

  The semiconductor IC chip 20b is mounted with a transmission / reception means 21 that transmits and receives signals via the antenna 20a, a control means 22 such as a CPU, a storage means 23 such as a memory, and a power source (not shown).

  In the storage means 23, member information of the constituent member 10 attached to the IC tag 20 is stored in advance. Here, the member information includes the size of the component member 10, the position of the IC tag 20 attached to the component member 10, the type of the component member 10 (column, wall, beam, etc.), part number, material, Information indicating the constituent member 10, such as a joint position where another member is assembled.

  As the relative position information acquisition unit 3, an IC tag reader / writer can be used. The relative position information acquisition unit 3 reads the relative position information from the specific IC tag that is arbitrarily specified after the relative positional relationship of all the IC tags 20 is formed by the exchange of information between all the IC tags 20. Is.

  As the completion position information storage means 4, a hard disk such as a personal computer can be used. Completion position information storage means 4 stores completion position information based on information (CAD data) of a virtual building previously constructed by a computer such as a three-dimensional CAD. The completion position information includes the status of all the structural members of the building, the member information included in the IC tag, the position of the IC tag attached to the structural member, the relative position between the IC tags when completed, and the like. .

  As the comparative examination means 5, a CPU such as a computer can be used. The comparison review unit 5 compares the relative position information obtained by the relative position information acquisition unit 3 with the completed position information input to the completed position information storage unit 4 and compares and compares them. After the comparative study, if the relative position information and the completed position information match, it is determined that the building component is securely assembled, and a message to that effect is displayed on a display means such as a display. . On the other hand, after the comparative study, if the relative position information and the completed position information do not match, it is determined that the building component is not securely assembled, and it is not assembled together with the defective place. Display the message on the display means.

(How to exchange information between IC tags 20)
A method of exchanging information between the IC tags 20 will be described with reference to FIG. FIG. 3 is an explanatory diagram of the exchange of information between the IC tags 20. The feature of the present invention is that each IC tag 20 detects other neighboring IC tags, relays information between the IC tags, and is relative to the specific IC tag specified by the relative position information acquisition means 3 as a reference. Building location information. Thus, by relaying information between IC tags, the storage capacity of the storage means 23 of each IC tag can be reduced. For this reason, the IC tag can be miniaturized. In addition, since the amount of information to be exchanged is small, the communication speed is increased, and the time until the relative position information is acquired and the building inspection is completed can be shortened. In addition, since relaying does not require radio waves to reach far away IC tags, power consumption can be kept low.

  With reference to FIG. 3, what is exchanged between the relative position information acquisition unit 3 and the plurality of IC tags 20 will be specifically described. In this example, for convenience of explanation, the IC tag 20 detects neighboring IC tags one by one, but a plurality of IC tags can be detected simultaneously.

  In FIG. 3, the storage means 23 of the three IC tags 20A, 20B, and 20C stores information of A, B, and C as member information, and the relative positions in the order of the IC tags 20A, 20B, and 20C. It is assumed that the distance from the information acquisition unit 3 is long.

  As shown in FIG. 3A, the relative position information acquisition unit 3 specifies one of the IC tags of the building. Here, the IC tag 20A in which the member information A is stored in the storage means 23 is specified. Next, the relative position information acquisition means 3 instructs the IC tag 20A to send a detection signal to neighboring IC tags. Based on this command, a detection signal is transmitted from the IC tag 20A to the surroundings. Here, the detection signal is transmitted from the IC tag 20A to the entire predetermined range.

  As shown in FIG. 3B, the IC tag 20B in the vicinity of the IC tag 20A receives the detection signal from the IC tag 20A. Then, the control means 22 of the IC tag 20B stores in the storage means 23 that the IC tag 20B receives a signal from the IC tag 20A from the next time, and then the IC tag 20B receives the detection signal toward the IC tag 20A. The reception signal that the IC tag 20B is in the vicinity of the IC tag 20A is transmitted. When this information is received by the IC tag 20A, the control means 22 of the IC tag 20A relays the received signal as it is and transmits it to the relative position information acquisition means 3. In this way, the received signal is transmitted to the relative position information acquisition means 3 from the IC tag 20B that has received the detection signal via the IC tag 20A. Thereby, the relative position information acquisition means 3 can recognize that the IC tags are arranged in the order of the IC tags 20A and 20B.

  As shown in FIG. 3 (c), the relative position information acquisition means 3 that has recognized that the IC tags 20A and 20B are arranged in this order relays the IC tag 20A to the IC tag 20B. Command to send. Based on this command, a detection signal is transmitted from the IC tag 20B.

  As shown in FIG. 3D, the IC tag 20C in the vicinity of the IC tag 20B receives the detection signal from the IC tag 20B. Then, as described above, the IC tag 20B and the IC tag 20A are relayed to transmit the information to the relative position information acquisition unit 3. Thereby, the relative position information acquisition means 3 can recognize that the IC tags are arranged in the order of the IC tags 20A, 20B, and 20C.

  As shown in FIG. 3E, the relative position information acquisition unit 3 that has recognized that the IC tags 20A, 20B, and 20C are arranged in this order relays the IC tags 20A and 20B to the IC tag 20C. It instructs the detection signal to be transmitted. Based on this command, a detection signal is transmitted from the IC tag 20C.

  As shown in FIG. 3 (f), when the transmission / reception means 21 of the IC tag 20C does not receive a reception signal from another IC tag for a certain period of time, the control means 22 has another IC tag in the vicinity of the IC tag 20C. Information that there is no tag 20 is transmitted to the IC tag 20B. This information is relayed through the IC tag 20B and the IC tag 20A and transmitted to the relative position information acquisition means 3. Thereby, the relative position information acquisition unit 3 can recognize that the IC tags are arranged in the order of the IC tags 20A, 20B, and 20C, and there is no IC tag farther than the IC tag 20C.

(Method for forming relative position information by IC tag)
By the method described above, the relative position information acquisition unit 3 can grasp the arrangement of the IC tags with reference to the specific IC tag. Next, how the relative position information is formed by exchanging the aforementioned information of the IC tag after assembling the building structural members will be described with reference to FIGS. 4 to 6 are schematic diagrams of the building and the IC tag 20 and a tree diagram of the relative position information of the IC tag recognized by the relative position information acquisition means.

  First, FIG. 4A shows a three-dimensional schematic diagram of a building in which components are assembled. Each side of the three-dimensional schematic diagram indicates a component, and circled alphabets A1 to A2, B1 to B4, C1 to C2, D1 to D2, and E1 to E2 indicate the IC tag 20, respectively. Those indicated by the same alphabet are assumed to be the same constituent members in which the same member information is recorded in the storage means 23 of the IC tag 20.

  As shown in FIG. 4B, the relative position information acquisition unit 3 sets, for example, the IC tag 20A1 as a specific IC tag. Then, the relative position information acquisition unit 3 instructs the specific IC tag 20A1 to transmit a detection signal. Then, a detection signal is transmitted from the IC tag 20A to a tag in a certain range (a broken line tag in the figure).

  The IC tag 20B1, the IC tag 20C1, and the IC tag 20B1 that have received the detection signal relay the received signal to the relative position information acquisition unit 3 via the IC tag 20A1. Here, the received signal is recognized by the relative position information acquisition means 3 in the order from the IC tag 20A1 that has transmitted the detection signal.

  As shown in FIG. 5A, the relative position information acquisition unit 3 relays the IC tag 20A1 and instructs the IC tag 20B1 closest to the IC tag 20A1 to transmit a detection signal. Then, the IC tag 20B1 transmits a detection signal to a tag (a broken line tag in the figure) within a certain range from the IC tag 20B1. Then, the IC tag 20D2 that has received the detection signal transmits a reception signal to the relative position information acquisition unit 3.

  In this case, the IC tag 20C1 is included in a certain range of the detection signal transmitted from the IC tag 20B1, but the IC tag 20C1 has already been detected. Here, the control means 22 of the IC tag 20C1 does not transmit the received signal to the relative position information acquisition means 3. Thereby, duplication of information can be prevented. Specifically, once the IC tag 20 has received a detection signal, this can be done by storing in the storage means 23 that the detection signal has already been received. In the drawing, the already detected IC tag 20 is shown circled.

  By following the above procedure, the relative position information acquisition unit 3 can recognize the arrangement of the IC tag 20A1, the IC tag 20B1, and the IC tag 20D2.

  As shown in FIG. 5B, the relative position information acquisition means 3 relays the IC tag 20A1, and instructs the IC tag 20C1 closest to the second IC tag 20A1 to send a detection signal. To do. Then, the IC tag 20C1 transmits a detection signal as described above. The IC tag 20D1 that has received the detection signal transmits a reception signal to the relative position information acquisition unit 3. As described above, the IC tag 20D2 falls within a certain range of the detection signal, but since the IC tag 20B1 has already been detected, the IC tag 20D2 does not transmit a reception signal to the relative position information acquisition unit 3. Absent.

  As shown in FIG. 5C, the relative position information acquisition means 3 relays the IC tag 20A1 and instructs the IC tag 20B2 closest to the third IC tag 20A1 to send a detection signal. To do. Then, the IC tag 20B2 transmits a detection signal as described above. The detection signal reaches the neighboring IC tag 20C1 and IC tag 20D1, but since the detection signal has already been detected, the reception signal is not transmitted to the relative position information acquisition unit 3 as described above. As a result, the relative position information acquisition means 3 thereafter does not issue a command to relay the detection means via the IC tag 20A1 and the IC tag 20B2.

  In this way, the relative position information acquisition unit 3 issues a detection signal transmission command to the IC tag 20B1, the IC tag 20C1, and the IC tag 20B2 that have received the detection signal from the IC tag 20A1.

  As shown in FIG. 6A, the relative position information acquisition means 3 then instructs to relay the IC tag 20B1 closest to the IC tag 20A1 and to send a detection signal to the IC tag 20D2. To do. The IC tag 20E1 that has received this detection signal transmits a reception signal to the relative position information acquisition means 3.

  By repeating the above operation, the relative position information between the IC tags is formed between the IC tags 20 by relaying information with the specific IC tag 20A1 as a reference (see FIG. 6B).

[Second Embodiment]
A second embodiment of the present invention will be described with reference to FIGS. About the structure similar to the above, description is abbreviate | omitted by attaching | subjecting the same code | symbol. The above-described embodiment and this embodiment differ only in the method of forming relative position information using an IC tag.

(Method for forming relative position information by IC tag)
FIG. 7A shows a three-dimensional schematic diagram of the building in which the constituent members are assembled. The way of attaching the reference numerals is the same as in the above-described embodiment. Here, for example, the IC tag 20A1 is set as the specific IC tag by the relative position information acquisition means 3. The relative position information acquisition means 3 acquires the relative position information from the specific IC tag 20A1.

  Here, the position information forming unit of the present embodiment performs exchange between the IC tags, searches for the IC tag attached to the adjacent structural member of each IC tag, and forms relative position information.

  With this configuration, as shown in FIG. 7B, first, the control means 22 of the specific IC tag 20A1 issues a search signal from the transmission / reception means 21 toward the neighboring IC tag 20. As a result, neighboring IC tags 20 (IC tag 20B1, IC tag 20C1, IC tag 20B2, IC tag 20E1, and IC tag 20E2) receive the search signal. Here, in this embodiment, the IC tag 20B1, the IC tag 20B2, the IC tag 20E1, and the IC tag 20E2 attached to the components adjacent to the IC tag 20A1 transmit the received signal to the IC tag 20A1, Since the IC tag 20C1 attached to the component not adjacent to the tag 20A1 is a component not adjacent to the tag 20A1, the relative position information cannot be formed, and the IC tag 20C1 does not transmit a reception signal to the IC tag 20A1.

  Therefore, only the IC tag 20B1, the IC tag 20B2, the IC tag 20E1, and the IC tag 20E2 attached to the adjacent components transmit the reception signal toward the IC tag 20A1. The relative position information (the tree diagram on the right side of FIG. 7B) formed through such exchange is acquired from the relative position information acquisition means 3 via the specific IC tag 20A1. In the drawings, lines indicating already detected components are shown by tracing with double lines.

  Next, as shown in FIG. 8A, the control means 22 of the specific IC tag 20A determines what the adjacent IC tag 20 is to the detected IC tag 20B1, IC tag 20B2, IC tag 20E1, and IC tag 20E2. Command to search for

  For example, the control means 22 of the specific IC tag 20A searches for the IC tag 20 of the adjacent component with respect to the IC tag 20B1 among the adjacent IC tag 20B1, IC tag 20B2, IC tag 20E1, and IC tag 20E2. To issue a command. In response to this instruction, the IC tag 20B1 transmits a search signal. Then, among the IC tags 20 that have received the search signal, the IC tag 20C1 and the IC tag 20D2 attached to the components adjacent to the IC tag 20B1 transmit the received signals to the IC tag 20B1. The received signal is relayed to the IC tag 20B1 and the IC tag 20A1, and reaches the relative position information acquisition unit 3.

  Next, the control means 22 of the specific IC tag 20A searches for the IC tag 20 of the adjacent component with respect to the IC tag 20B2 among the adjacent IC tag 20B1, IC tag 20B2, IC tag 20E1, and IC tag 20E2. To issue a command. Then, the IC tag 20B2 that has received the command transmits a detection signal. The IC tag 20D1 that has received the detection signal transmits the received signal to the IC tag 20B2. Here, since the IC tag 20E2 has already been detected, the received signal is not transmitted again.

  This exchange is repeated while relaying information between the IC tags 20. As a result, as indicated by the arrows in FIG. 8A and as shown in the tree diagram on the right side, the IC tag 20C1, the IC tag 20D2, the IC tag 20D1, IC tag 20A2, IC tag 20B4, and IC tag 20B3 are detected in order.

  Finally, when the IC tag 20C2 receives the search signal, the reception signal of the IC tag 20C2 is transmitted to the specific IC tag 20A1 via the IC tag 20D2 and the IC tag 20B1.

  By performing such exchange, as shown in FIG. 8B, all the IC tags 20 are detected, and relative position information between the IC tags is formed.

  In the present embodiment, a three-dimensional schematic diagram is formed using only columnar and beam-shaped members, but members such as walls and roofs can also be used.

  In the embodiment, the example of the inspection when the building is completed is shown. However, the present invention can be applied to the intermediate inspection at a predetermined intermediate completion.

  As an application example of the present invention, it can also be used for structures other than buildings. For example, this technique can be diverted to automobiles, aircraft, ships, and the like that use many components other than buildings.

Explanatory drawing of the component of the building inspection system 1. FIG. FIG. 3 is an explanatory diagram of an IC tag 20 attached to a component member 10. Explanatory drawing of the exchange of information between IC tags. 3 is a schematic diagram of a building and an IC tag 20 and a tree diagram of relative position information of the IC tag recognized by the relative position information acquisition unit in the first embodiment. FIG. 3 is a schematic diagram of a building and an IC tag 20 and a tree diagram of relative position information of the IC tag recognized by the relative position information acquisition unit in the first embodiment. FIG. 3 is a schematic diagram of a building and an IC tag 20 and a tree diagram of relative position information of the IC tag recognized by the relative position information acquisition unit in the first embodiment. FIG. FIG. 6 is a schematic diagram of a building and an IC tag and a tree diagram of relative position information of the IC tag recognized by the relative position information acquisition unit in the second embodiment. FIG. 6 is a schematic diagram of a building and an IC tag and a tree diagram of relative position information of the IC tag recognized by the relative position information acquisition unit in the second embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Building inspection system 2 ... Position information formation means 3 ... Relative position information acquisition means 4 ... Completion position information storage means 5 ... Comparison examination means
10 ... Components
20 ... IC tag
20a ... Antenna
20b Semiconductor IC chip
21 ... Transmission / reception means
22… Control means
23… Memory means

Claims (3)

Position information forming means for acquiring information on the IC tag attached to each component of the building and forming relative position information between all the IC tags arranged in the building;
Relative position information acquisition means for acquiring the relative position information;
Completion position information storage means in which completion position information, which is the relative position of the IC tag after completion of the building, is stored in advance;
The relative position information between the IC tags obtained from the relative position information acquisition means and the completed position information stored in the completed position information storage means are compared to determine whether or not each of the constituent members is correctly arranged. A comparative study means;
A building inspection system characterized by comprising: The position information forming means includes
Transmitting and receiving means for transmitting and receiving signals;
Storage means for storing and reading information by signals transmitted and received by the transmission / reception means;
Control means for controlling the transmission / reception means and the storage means;
Relative position information between the IC tags is formed by integrally arranging the IC tags attached to the respective constituent members and relaying information between the IC tags attached to the respective constituent members. The building inspection system according to claim 1. The building inspection system according to claim 1, wherein the position information forming unit forms the relative position information while searching for IC tags of adjacent components.

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