JP2009197473A - Civil engineering structure and control system of civil engineering structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a civil engineering structure capable of providing necessary information at site even if the civil engineering structure is damaged by an accident and also provide a control system of the civil engineering structure. <P>SOLUTION: In this civil engineering structure 10 comprising RF tags 12 in which the structure information on the civil engineering structure 10 can be stored, the structure information is dividedly stored in the plurality of RF tags 12 since a plurality of divided information formed by dividing the structure information are held in the RF tags 12, respectively. Each divided information is doubly stored in the plurality of RF tags. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a civil engineering structure and a civil engineering structure management system.

Conventionally, information on civil engineering structures has been identified by nameplates installed on the civil engineering structures. For example, in civil engineering structures such as retaining walls, tunnels, bridges, etc., nameplates with completion dates, design standards, design conditions, names of contractors, etc. are installed.
Information on the nameplate installed in the civil engineering structure is only information at the time of completion of the structure, and information on daily maintenance is not obtained from the nameplate.
In recent years, it has been proposed to embed an RF tag in a concrete product and store management information in the RF tag (see, for example, Patent Document 1).
JP 2007-224654 A

Here, if the results of daily inspections, periodic inspections, and abnormal inspections after completion are accumulated as management information for civil engineering structures, they can be inspected and recovery measures for damaged parts in the event of a disaster such as an earthquake. It is advantageous to take
In other words, while grasping the state of the civil engineering structure before the disaster, by observing the situation of the civil engineering structure after the disaster, it is possible to grasp the damage location caused by the disaster, and the civil engineering structure and the surrounding environment due to the disaster. By grasping changes in the situation, it is possible to take appropriate recovery measures.

It is also conceivable to store the management information as described above in a database of a computer installed at a management center or the like and use the management information when necessary.
However, in the event of a disaster, in order to access the database from the site where the civil engineering structure is installed, it is necessary to be able to use a communication line from the site to the management center even in the event of a disaster. In the event of a disaster, the communication line may be interrupted, or the management center where the database is installed may be damaged. The necessary management information may not be available from the site, and recovery work may take time. .

Therefore, the present inventors have come up with the idea of storing management information that is useful even during a disaster in an RF tag provided in a civil engineering structure.
However, as described in Patent Document 1, it is difficult to manage civil engineering structures so that they can cope with disasters simply by providing RF tags (wireless IC tags) on the structures.
That is, at the time of breakage due to a disaster or the like, the RF tag provided in the civil engineering structure may be destroyed due to dropping or destruction of the embedded portion of the RF tag (RFID tag) in the civil engineering structure, and management information may be lost. .

  The present invention has been made in view of such circumstances, and provides a civil engineering structure and a civil engineering structure management system in which necessary information can be obtained in the field even if the civil engineering structure is damaged due to a disaster or the like. For the purpose.

The present invention is a civil engineering structure provided with an RF tag capable of storing structural information related to a civil engineering structure, wherein the structural information includes a plurality of pieces of divided information obtained by dividing the structural information. By being held in the RF tag, it is stored in a distributed manner by a plurality of RF tags, and each division information is stored redundantly by a plurality of RF tags.
According to the present invention, since the information of the civil engineering structure is stored in a distributed and redundant manner by a plurality of RF tags, even if some of the RF tags are damaged due to the damage of the civil engineering structure, the information Restorability is improved.

  The RF tag includes a memory including a first storage area for storing division information to be stored by the RF tag and a second storage area for storing a copy of the division information to be stored by another RF tag. It is preferable.

  It is preferable that a plurality of RF tags for storing structure information of the blocks are provided for each of the plurality of blocks constituting the civil engineering structure. In this case, the civil engineering structure can be managed for each block.

  The present invention relating to a management system is a management system for managing a civil engineering structure provided with an RF tag capable of storing structural information related to a civil engineering structure, and comprising an information terminal capable of transmitting information to the RF tag. The information terminal includes a dividing unit configured to divide the structure information related to the civil engineering structure to generate a plurality of division information, and to manage a number corresponding to the number of the plurality of RF tags provided in the civil engineering structure. Management information generating means for generating information, and transmission means for transmitting the generated management information to the RF tag, wherein the management information generating means holds each of a plurality of pieces of division information in a plurality of RF tags. In addition, the management information including information obtained by combining a plurality of pieces of division information is stored in an RF provided in the civil engineering structure so that each piece of division information is redundantly stored by a plurality of RF tags. A management system and generates higher the number corresponding to the number of grayed.

  The management system for managing the civil engineering structure includes an information terminal capable of receiving information from the RF tag, and the information terminal is divided information stored in the RF tag provided in the civil engineering structure. Receiving means from an RF tag, and restoration means for restoring the structure information by combining a plurality of pieces of division information received from a plurality of RF tags, the restoration means dividing the structure information When there is an incommunicable RF tag that cannot receive division information among a plurality of RF tags that hold information, the RF tag from another RF tag that holds the same division information as the division information that the incommunicable RF tag should bear It is a management system characterized by acquiring division information and restoring the structure information.

  The RF tag includes a memory including a first storage area for storing division information to be stored by the RF tag and a second storage area for storing a copy of the division information to be stored by another RF tag. The restoration means is configured to restore the structure information by combining the division information of the first storage area received from the plurality of RF tags, and a plurality of RFs that hold the division information of the structure structure. If there is an RF tag that cannot be communicated among the tags, another RF tag that stores a copy of the division information stored in the first storage area of the RF tag that cannot be communicated in the second storage area It is preferable that the structure information is restored by obtaining a copy of the division information.

Each RF tag provided in the civil engineering structure does not store information indicating which division information stored in the second storage area is a copy of the division information of the first storage area of which RF tag. The information terminal has correspondence information indicating which RF tag stores a copy of the division information stored in the first storage area of each RF tag;
If there is an RF tag that cannot be communicated, the restoring means stores a copy of the division information stored in the first storage area of the RF tag that cannot be communicated in the second storage area based on the correspondence information. Preferably, another RF tag is identified.

  According to the civil engineering structure and the civil engineering structure information management system of the present invention, necessary information can be obtained from the civil engineering structure even if the civil engineering structure is damaged due to a disaster or the like.

Hereinafter, embodiments of a civil engineering structure and a management system of the present invention will be described in detail with reference to the accompanying drawings.
The management system 1 is for managing the civil engineering structure 10. In FIG. 1 and the like, a bridge is described as an example of the civil engineering structure 10, but the civil engineering structure 10 may be a tunnel, a retaining wall, or the like.
The civil engineering structure 10 is provided with a plurality of RF tags (transponders) 12. Information regarding the civil engineering structure 10 is stored in the RF tag 12 of the civil engineering structure 10.

As shown in FIG. 2, the management system 1 includes an information terminal 20 capable of transmitting / receiving information (radio communication) to / from the RF tags 12 a-1 to 12 a-8 embedded in the civil engineering structure 10.
The information terminal 20 can accept input from the user, and can output information read from the RF tags 12a-1 to 12a-8 and other information to the screen.

The management system 1 further includes a server 30 having a database for storing the same information as the information stored in the RF tag and other information related to the civil engineering structure. The server 30 can store information related to a plurality of civil engineering structures 10.
The information terminal 20 can communicate with the server 30 via a wired or wireless communication line, acquires necessary information from the database of the server 30, and transmits information to be stored in the database of the server 30. can do.

  The civil engineering structure 10 is configured by combining a plurality of blocks (parts; concrete material parts) 11a to 11g. In the present embodiment, the minimum unit of management by the management system is the blocks 11 a to 11 g of the civil engineering structure 10. By managing information by dividing one civil engineering structure 10 into a plurality of blocks, it is possible to flexibly when the manufacturing conditions are different for each block (part) or when the information to be managed is different for each block (part). Can respond.

In addition, each block 11a-11g may be a physically distinguishable component part which comprises the civil engineering structure 10, and the area | region where the civil engineering structure 10 was divided conceptually may be sufficient as it.
Moreover, in FIG. 2, only one block 11a is shown among each block of the civil engineering structure 10 shown in FIG. 1 for easy understanding.

Here, the RF tags 12a-1 to 12a-8 receive radio waves transmitted from the information terminal 20 with respect to the embedded depth of the RF tags 12a-1 to 12a-8 embedded in the civil engineering structure unit 10. As long as it can be.
The intervals between the RF tags 12a-1 to 12a-8 may be such that communication interference with other RF tags does not occur during communication between a certain RF tag and the information terminal 20.

  The server 30 includes a communication unit 31 that transmits / receives information to / from the information terminal 20, an input unit 34 that receives information, a storage unit 33 that constructs a database, and a control unit that performs necessary information processing. 32. In addition, a display unit 40 is connected to the server 30.

As shown in FIG. 3, the RF tag 12 includes information between a storage unit (memory) 51 that stores management information and the like, a control unit 52 that encodes and decodes information to be transmitted and received, and the information terminal 20. And an antenna unit 53 for transmitting and receiving the signal.
The RF tag 12 is configured as a passive tag, but may be an active tag. The frequency used by the RF tag 12 for wireless communication is 134.2 kHz. This frequency is preferable because it can pass through concrete or the like used as a material for civil engineering structures.

  As shown in FIG. 4, the information terminal 20 includes a communication unit 61 that transmits and receives information to and from the RF tag 12 and the server 30, a storage unit 62 that stores information obtained from the RF tag 12 and the server 30, and Information input / output between the input unit 63 for inputting information such as management information, a display unit 64 for displaying information on the screen, and the RF tag 12, information transfer with the server 30, and management information input to the input unit 63 Etc., and a control unit 65 for controlling the output of information to the display unit 64 and the like.

FIG. 5 shows the entire information to be stored in one civil engineering structure 10. The whole information is composed of structure information for each of a plurality (seven) blocks 11a to 11g constituting the civil engineering structure 10. The overall information may include information on the entire civil engineering structure that does not depend on the block division. Information on the entire civil engineering structure includes the type of structure, design standards, designer, completion date, nearest inspection date, inspection item, information that can be used for emergency determination during abnormal inspection, and the like.
Information about the entire civil engineering structure that does not depend on the block division may be stored in the RF tag as part of the structure information of any block, or may be distributed and stored in each RF tag of a plurality of blocks. Good.

  The structure information of each of the blocks 11a to 11g includes inspection management information indicating the results of daily inspection, periodic inspection, abnormality inspection, and the like for each of the blocks 11a to 11g constituting the civil engineering structure 10. By combining all the structure information of the blocks constituting one civil engineering structure 10, the entire information of the civil engineering structure 10 is obtained.

  Examples of the inspection result information included in the structure information include information on the state and soundness of the civil engineering structure. Specifically, the damage situation for each block of the civil engineering structure, the crack situation for each block of the civil engineering structure, and the like can be mentioned.

One piece of structure information is not stored together in one RF tag 12, but one piece of structure information is distributed and stored by a plurality of RF tags 12a-1 to 12a-8.
In other words, each of the plurality of RF tags 12a-1 to 12a-8 provided in one block holds the structure information of the block in pieces. Here, a piece of structure information held by one RF tag is referred to as division information.

In the present embodiment, for example, eight RF tags 12a-1 to 12a-8 are provided in one block. As shown in FIG. 6, one piece of structure information is divided into a number (eight) of pieces of division information corresponding to the number of RF tags (eight). Eight pieces of division information are held in eight RF tags, respectively.
Note that the number of RF tags is not limited to eight. In addition, the number of RF tags provided in each block may be the same or different in each block.

  The plurality of pieces of division information received from the plurality of RF tags 12a-1 to 12a-8 are combined in the information terminal 20 to restore one piece of structure information. The restored structure information can be displayed on the information terminal 20.

FIG. 7 shows a format of management information stored in a plurality (eight) of RF tags 12a-1 to 12a-8. The management information is information including the division information and other information.
The management information includes a tag ID, a structure ID, and a component ID (block ID) as information other than the division information.
The tag ID is for identifying the individual RF tags 12a-1 to 12a-8. The tag ID is unique and the ID (tag position ID) indicating the position in the block where the RF tag is provided. It is comprised by the combination.
The structure ID specifies the civil engineering structure 10 provided with the RF tag, and the component ID (block ID) specifies the block (component) provided with the RF tag.

Each of the RF tags 12a-1 to 12a-8 has a storage area in the storage unit 51 for storing the above information.
The RF tags 12a-1 to 12a-8 include, as management information, a first storage area for storing the first division information and a second storage area for storing the second division information. Yes.
The first storage area stores division information that the RF tag should mainly store, and the second storage area stores a copy of the division information that the other RF tag should mainly store.
That is, each of the RF tags 12a-1 to 12a-8 stores a part of the structure information, but can store two (plural) pieces of division information.
Thereby, each division | segmentation information is hold | maintained redundantly by several RF tag.

The storage area of the RFID storage unit 51 of this embodiment is 80 memory bits (10 bytes) as a whole, the tag ID is 2 bytes, the structure ID is 1 byte, the component ID is 1 byte, and the first storage area is 3 bytes are allocated to the second storage area.
As shown in FIG. 2, when eight RF tags 12a-1 to 12a-8 are assigned to one block of the civil engineering structure 10, the capacity of the structure information is 3 bytes (first number) per block. (Capacity of one storage area) × 8 = 24 bytes are secured.
As described above, by distributing the structure information to a plurality of RF tags and storing them, information exceeding the storage capacity of one RF tag can be stored.
Similarly, the capacity of the second storage area for storing a copy of the division information is secured to 24 bytes per block.

Hereinafter, how to store the division information in the RF tag (redundancy mode) will be described.
In the following, tag IDs (tag position IDs) of the eight RF tags 12a-1 to 12a-8 embedded in one block are ID = 0 to ID = 7.
Further, RF tags having adjacent tag IDs are assumed to be actually adjacent to each other in the block, and the first RF tag having a certain tag ID and the total number of RF tags in the first tag ID. It is assumed that the second RF tag having a tag ID to which ½ (= 4) of (= 8) is added is in a positional relationship farthest from each other in the block.

  FIG. 8 shows an example (comparative example) in which the division information is not stored in the second storage area of the storage unit 51 of the RF tag 12. In this case, the division information is stored only in the first storage area. Each division information is stored only in one RF tag.

  Specifically, in the case of FIG. 8, the division information (0) Do-0 is stored in the RF tag 12a-1 with ID = 0, and the division information (1) is stored in the RF tag 12a-2 with ID = 1. Do-1 is stored. Hereinafter, similarly, division information (2) Do-2 to division information (7) Do-7 are stored in the RF tags 12a-3 to 12a-8 with ID = 2-7.

The information terminal 20 reads management information from the RF tags 12a-1 to 12a-7, and extracts division information of the first storage area from the read management information. Then, according to a predetermined rule such as tag ID order, the structure information is restored by combining eight (plural) pieces of division information. The restored structure information is displayed from the information terminal 20.
However, in the comparative example of FIG. 8, there is no redundancy in how the structure information is stored, so that even if one RF tag is damaged, the structure information cannot be completely restored.

On the other hand, FIG. 9 shows a method of storing structure information with redundancy. In FIG. 9, original division information Do-0 to Do-7 that should be mainly stored by the RF tag 12 is stored in the first storage areas of the RF tags 12a-1 to 12a-7.
Further, in each of the second storage areas of the RF tags 12a-1 to 12a-7, the copy Dc-0 of the division information Do-0 to Do-7 stored in the first storage area of another R tag is stored. Dc-7 is stored.

Specifically, for example, division information (0) Do-0 is stored as original division information in the first storage area of the RF tag 12a-1 with tag ID = 0, and in the second storage area, As copy division information, division information (4) Dc-4 is stored.
Further, division information (4) Do-4 is stored as original division information in the first storage area of the RF tag 12a-5 with tag ID = 4, and copy division information is stored in the second storage area. Division information (0) Dc-0 is stored.
That is, the RF tag 12a-1 with ID = 0 and the RF tag 12a-5 with ID = 4 are paired and hold a copy of each other's original information.

  Similarly, the RF tag 12a-2 with ID = 1 and the RF tag 12a-6 with ID = 5 are paired, and the RF tag 12a-3 with ID = 2 and the RF tag 12a-7 with ID = 6 are paired. The RF tag 12a-4 with ID = 3 and the RF tag 12a-8 with ID = 7 are paired and hold a copy of the original information.

  When division information is stored as described above, one piece of division information is held by two (plural) RF tags. Therefore, even if one of the RF tags constituting the pair is damaged and communication becomes impossible, the information terminal 20 uses the copy division information possessed by the other RF tag constituting the pair to The whole can be restored.

That is, when all of the eight pieces of management information cannot be acquired due to a failure of one of the RF tags 12a-1 to 12a-8, the information terminal 20 first fails to acquire the management information. The ID of is specified.
Then, another RF tag having a copy of the division information that the incommunicable RF tag has in the first storage area is specified. Identification of other RF tags is performed based on correspondence information possessed by the information terminal 20.
And the copy of the division | segmentation information which the non-communication RF tag has in the 1st storage area is acquired from the 2nd storage area of the RF tag which has a copy.
The information terminal 20 restores the structure information by combining this copy with other acquired division information (original or copy).

  The correspondence relationship information is configured by information indicating a correspondence between a tag ID having original division information and a tag ID having a copy of the original division information, for example. In the example of FIG. 9, the copy division information includes RF tags having a number of IDs obtained by adding ½ of the total number of RF tags (eight) to the tag ID of the RF tag in which the original division information is stored. Is remembered. In this case, the tag ID of the RF tag having copy information can be specified by the expression [tag ID + (total number of RF tags / 2)] of the incommunicable RF tag, and the expression becomes correspondence information.

  As described above, since the information terminal 20 has the correspondence information, the RF tag itself does not need to have information indicating the correspondence between the original and the copy. In addition, since the RF tag having a copy is not located adjacent to the RF tag having the original, but is located at the most distant position, the two RF tags are destroyed together when the civil engineering structure 10 is damaged. The possibility of being used is low, and the recoverability of information is increasing.

FIG. 10 shows another example in which structure information is stored with redundancy. In FIG. 10 and the following examples, points that are not particularly described are the same as those in the example of FIG.
Also in the example of FIG. 10, original division information Do-0 to Do-7 that should be mainly stored by the RF tag 12 is stored in the first storage areas of the RF tags 12a-1 to 12a-7. Is done.
In the example of FIG. 10, the copy of the division information is divided into two (plural) subdivision information and stored by two (plural) RF tags.
Further, the second storage area of each RF tag is also divided into two, and two (plural) subdivision information can be stored.

  Specifically, for example, division information (0) Do-0 is stored as original division information in the first storage area of the RF tag 12a-1 with tag ID = 0. The copy Dc-0 of the division information (0) Do-0 is divided into two pieces of subdivision information Dc-0-1 and Dc-0-2, and the RF tag 12a-5 with tag ID = 4 and These are stored separately in the RF tag 12a-6 with tag ID = 5.

  Here, of the two subdivision information Dc-0-1 and Dc-0-2, the first subdivision information is set to tag ID = 0 of the RF tag 12a-1 in which the original subdivision information is stored. It is stored in the RF tag 12a-5 having the number of IDs obtained by adding ½ of the total number (eight) of RF tags. The second subdivision information is the number obtained by adding the number of RF tags ½ of the total number of RF tags (eight) +1 to the tag ID = 0 of the RF tag 12a-1 in which the original division information is stored. It is stored in the RF tag 12a-6 having the ID.

As for the original division information stored in the other RF tags 12a-2 to 12a-8, the subdivision information of the copy information is distributed to the RF tags 12a-1 to 12a-8 according to the rules (correspondence information). Is done.
As a result, in addition to the division information (0) Do-0, the fine division information Dc-4-1 and the fine division information Dc-3-2 are stored as a copy in the RF tag 12a-1 with ID = 0. Is done. The same applies to the other RF tags 12a-2 to 12a-8.

In the case of the example in FIG. 10, the information terminal 20 has subdivision information that constitutes copy division information from the ID of the RF tag that cannot be communicated if there is a non-communication tag among the RF tags 12 a-1 to 12 a-8. The IDs of two (plural) RF tags are specified based on the correspondence information. Then, subdivision information is acquired from the second storage areas of these RF tags, and subdivision information is combined to generate copy division information.
The information terminal 20 restores the structure information by combining this copy with other acquired division information (original or copy).

In the case of the example in FIG. 10, the dispersibility of the copy division information is high and the reconstructability of the structure information is higher than in the example in FIG. 9.
That is, in the case of FIG. 9, if both the RF tags 12a-1 and 12a-5 constituting the pair are damaged as in ID = 0 and 4, the entire division information (0) Do-0 cannot be restored.
On the other hand, in the example of FIG. 10, even if both the RF tag 12a-1 with ID = 0 and the RF tag 12a-5 with ID = 4 are damaged, a part of the copy of the division information (0) Do-0 ( Since the subdivision information Dc-0-2) is stored in the RF tag 12a-6 with ID = 5, the information terminal device 20 can acquire a part of the copy, and the reconstructability of the structure information is improved. .

FIG. 11 shows still another example in which the structure information is stored with redundancy. Also in the example of FIG. 11, original division information Do-0 to Do-7 that the RF tag 12 should mainly store is stored in the first storage areas of the RF tags 12a-1 to 12a-8. Is done.
In the example of FIG. 11, as shown in FIG. 9, the copy division information is not stored in another RF tag of the same block, but the copy is stored in the RF tag of another block.

  For example, the copy of the division information (0) [Do-0, 0] stored in the RF tag 12a-1 with the tag ID = 0 of the first block 11a (component ID = 0) is copied to the second block 11b (component ID = 0). It is stored in the RF tag 12b-5 with tag ID = 4 with ID = 1). In FIG. 11, the positional relationship between the RF tag storing the original and the RF tag storing the copy is the same as the example of FIG. 9 except that the blocks are different.

As described above, by retaining a copy of the division information of a certain block in the RF tag of another block, the recoverability of information with respect to block damage is enhanced.
Although FIG. 11 shows a case where the two blocks 11a and 11b have a copy, the number of blocks may be three or more.

FIG. 12 shows still another example in which the structure information is stored with redundancy. In the example of FIG. 12, when the copy is stored in another block as in the example of FIG. 11, the copy is stored in two (plural) subdivision information as in the example of FIG. Is.
In this case, the recoverability of information is higher than in the example of FIG.

  In the example of FIG. 12, the copy of the division information of a certain block is stored in the RF tag included in another block, but the copy may be stored across a plurality of other blocks. In addition, although the copy division number is 2 as an example, it may be 3 or more.

Hereinafter, reading and writing of information by the management system configured as described above will be described.
When information stored in the RF tag of the civil engineering structure 10 is read by the information terminal 20, a model (three-dimensional model) of the civil engineering structure 10 as shown in FIG. 1 is displayed on the screen of the information terminal 20. . This three-dimensional model is displayed divided into blocks 11a to 11g.
In the information terminal 20, when any one of the displayed blocks 11a to 11g is selected by an appropriate input unit, the structure information of the selected block is displayed. Thereby, the past inspection result etc. of each block can be grasped | ascertained at the site where the civil engineering structure is installed.

Reading of information from the RF tag is performed by bringing the reader / writer of the RF tag provided in the information terminal 20 (the antenna unit of the reader / writer) closer to the surface of the embedded position of each RF tag of the civil engineering structure 10. Done. When the management information is read from all the RF tags provided in one block, the structure information of the block is generated, and the structure information about the block can be displayed on the information terminal 20.
The information terminal 20 may have an antenna unit outside the main body of the information terminal 20.

In addition, as for the burying position of RF tag, it is preferable to provide the civil engineering structure 10 itself with a mark indicating the burying position. Further, instead of or in addition to the mark, the information terminal 20 may display the position of the RF tag in the civil engineering structure 10 on the screen.
By doing in this way, even if many RF tags are provided in the civil engineering structure, reading and writing of the reader can be surely performed.

  When information such as the inspection result of the civil engineering structure 10 is stored in the RF tag of the civil engineering structure 10, first, information such as the inspection result of the civil engineering structure 10 is input to the information terminal 20. This input is preferably performed for each block by selecting individual blocks in the model of the civil engineering structure 10 displayed on the information terminal 20.

When information (input information) such as an inspection result for a certain block is input, the information terminal 20 divides the input information into pieces of division information corresponding to the number of RF tags provided in the block. .
Subsequently, the information terminal 20 also generates management information corresponding to the number of RF tags. Each management information includes a tag ID, a structure ID, and a component ID. Also, the original division information is stored in the first storage area among the areas for storing the management information. The second storage area stores a copy of the division information to be stored by other RF tags.

After the necessary number of management information is generated by the information terminal 20, when the reader / writer of the information terminal 20 is brought close to the RF tag, the management information to be written to the RF tag is written to the RF tag.
When the management information is written (updated) for all the RF tags in a certain block, the work for storing the inspection result in the civil engineering structure is completed.

  As described above, according to the present embodiment, the civil engineering structure itself can store the situation at the time of inspection / inspection of the civil engineering structure and the situation at the time of the disaster (structure information). Moreover, since the civil engineering structure can be managed in units of blocks, it is possible to cope with differences in manufacturing conditions for each block.

  In addition, this invention is not limited to the said embodiment, A various deformation | transformation is possible.

It is a schematic explanatory drawing of the civil engineering structure which concerns on one embodiment of this invention. It is a schematic explanatory drawing which shows the structure of the management system of the civil engineering structure which concerns on one embodiment of this invention. It is a schematic explanatory drawing which shows the structure of RF tag. It is a schematic explanatory drawing which shows the structure of an information terminal. It is a figure which shows the whole information of a civil engineering structure. It is a figure which shows the method of dividing | segmenting structure information. It is explanatory drawing of the data format of management information. It is a figure which shows the comparative example of the method of memorize | storing the division information to RF tag. It is a figure which shows an example of the method of memorize | storing the division information to RF tag. It is a figure which shows an example of the method of memorize | storing the division information to RF tag. It is a figure which shows an example of the method of memorize | storing the division information to RF tag. It is a figure which shows an example of the method of memorize | storing the division information to RF tag.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Management system 10 Civil engineering structure 11a block 11b block 11c block 11d block 11e block 11f block 11g block 12 RF tag 12a-1 RF tag 12a-2 RF tag 12a-3 RF tag 12a-4 RF tag 12a-5 RF tag 12a -6 RF tag 12a-7 RF tag 12a-8 RF tag 20 Information terminal 30 Server 31 Communication unit 32 Control unit 33 Storage unit 34 Input unit 40 Display unit 51 Storage unit 52 Control unit 53 Antenna unit 61 Storage unit 63 Input unit 64 Display unit 65 Control unit

Claims (7)

A civil engineering structure provided with an RF tag capable of storing structural information related to a civil engineering structure,
The structure information is stored in a distributed manner by a plurality of RF tags by holding a plurality of pieces of division information obtained by dividing the structure information by a plurality of RF tags,
A civil engineering structure characterized in that each division information is stored redundantly by a plurality of RF tags.   The RF tag includes a memory including a first storage area for storing division information to be stored by the RF tag and a second storage area for storing a copy of the division information to be stored by another RF tag. The civil engineering structure according to claim 1.   The civil engineering structure according to claim 1 or 2, wherein a plurality of RF tags for storing structure information of the block are provided for each of the plurality of blocks constituting the civil engineering structure. A management system for managing a civil engineering structure provided with an RF tag capable of storing structural information related to the civil engineering structure,
Including an information terminal capable of transmitting information to the RF tag,
The information terminal
Dividing means for dividing structure information related to the civil engineering structure to generate a plurality of pieces of division information;
Management information generating means for generating management information corresponding to the number of a plurality of RF tags provided in the civil engineering structure;
Transmitting means for transmitting the generated management information to the RF tag;
With
The management information generating means
The management information including information obtained by combining a plurality of pieces of division information such that each piece of division information is held in a plurality of RF tags and each piece of division information is stored redundantly by a plurality of RF tags. A management system that generates as many as the number of RF tags provided in the civil engineering structure. A management system for managing the civil engineering structure according to claim 1,
Including an information terminal capable of receiving information from the RF tag,
The information terminal
Receiving means for receiving the division information stored in the RF tag provided in the civil engineering structure from the RF tag;
Restoring means for restoring the structure information by combining a plurality of pieces of division information received from a plurality of RF tags;
With
When there is an incommunicable RF tag that cannot receive the division information among a plurality of RF tags that hold the division information of the structure information, the restoration means is the same as the division information that the incommunicable RF tag should bear A management system that acquires the division information from another RF tag that holds division information and restores the structure information. The RF tag includes a memory including a first storage area for storing division information to be stored by the RF tag and a second storage area for storing a copy of the division information to be stored by another RF tag. ,
The restoration means includes
The structure information is restored by combining the division information of the first storage area received from a plurality of RF tags,
When there is an RF tag that cannot be communicated among the plurality of RF tags that hold the division information of the structure structure, a copy of the division information stored in the first storage area of the RF tag that cannot be communicated is copied. The management system according to claim 5, wherein a copy of the division information is obtained from another RF tag stored in the second storage area, and the structure information is restored. Each RF tag provided in the civil engineering structure does not store information indicating which division information stored in the second storage area is a copy of the division information of the first storage area of which RF tag. The information terminal has correspondence information indicating which RF tag stores a copy of the division information stored in the first storage area of each RF tag;
If there is an RF tag that cannot be communicated, the restoring means stores a copy of the division information stored in the first storage area of the RF tag that cannot be communicated in the second storage area based on the correspondence information. The management system according to claim 6, wherein another RF tag is identified.

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