JP2001235577A - Integrated management system for structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an integrated management system for structures capable of integrally managing a plurality of structures while saving labor. SOLUTION: This integrated management system for the structures is provided with a plurality of measuring devices for respectively measuring a plurality of structures after construction, an integrated management system 4 for acquiring each measured information measured by each measuring device 2, remotely through a sub-management system 3 to perform centralized control, and a diagnostic device 5 for judging the state of each structure 1 on the basis of measured information data controlled by the integrated management system 4.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure integrated management system for remotely managing the state of a plurality of structures irrespective of whether they are new or existing.

[0002]

2. Description of the Related Art Conventionally, information on a building structure or a civil engineering structure from construction start to completion of construction is managed by various construction management systems. In other words, during construction, information data on the ground conditions and ground conditions at the site are recorded sequentially, but after completion of construction, the information data is filed independently for each structure and simply stored. It just works. Thus, the data under construction is
At least as long as no abnormalities occur in the structure, it is left alone, and even after completion, the state of the structure is continuously monitored and maintenance is performed to judge whether any abnormalities have occurred to the extent that repairs are required for the structure It is rare to take the system.

[0003] Therefore, in general, after a rock mass collapse due to aging of a structure, a tunnel wall falling earthquake disaster, or the like, that is, after an abnormality of the structure is completely manifested,
At present, we are looking for the old construction records that we have saved and referencing them, and considering future countermeasures. Also,
Even when the maintenance of the structure is performed by continuously monitoring the state of the structure even after the completion of the construction, the structure is usually diagnosed by an inspector going to the site and performing an inspection.

[0004] One of the reasons why maintenance is not continued even after the completion of the structure may be a problem of cost. Continuing maintenance of the structure for more than a dozen years or more is very expensive. The reason for this is that, since the site where maintenance is to be performed is generally very far from the inspection office, performing a manual inspection as in the above-described conventional case requires enormous labor costs.

[0005]

As described above, since a maintenance system for regularly monitoring a completed structure is not taken as described above, it is not possible to take measures against a structural abnormality at an early stage. It is easy to perform post-processing after problems such as bedrock collapse have occurred. In addition, even when regular maintenance is performed on structures that have been completed on a regular basis, maintenance is required in order for inspectors to go to the site to perform inspections and perform maintenance individually for each structure individually. Costs are higher.

[0006] Here, even if two or more structures are close to each other and are the same owner, a system that can perform integrated monitoring due to problems such as differences in construction personnel and costs could not be constructed. Conventionally, it may be one of the reasons that integrated management of a plurality of structures has not been performed. An object of the present invention is to provide a structure integrated management system capable of integrating and managing a plurality of structures while saving labor, paying attention to the above problems.

[0007]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides a plurality of measuring devices each for measuring a state of a plurality of structures after completion, and each measurement information measured by each measuring device. Centralized management means for remotely obtaining and centrally managing the measurement information, and monitoring means for determining the state of each structure based on measurement information data managed by the centralized management means, integrated structure management System.

Here, the object to be measured by the measuring device is
For example, it is a physical quantity related to an abnormality that may occur in a target structure such as a distortion generated in the structure itself.
At this time, the centralized management means also inputs and manages construction time information based on the construction record of the target structure under construction, etc., and causes the monitoring means to perform management based on the measurement information and the construction time information. It is preferable to determine the state of each structure.

[0009] The monitoring means may be characterized in that the state of the structure is automatically determined by an artificial intelligence system (an expert system using a fuzzy system or a neural network). The measurement information measured by the measurement device may be transmitted to a central management unit via a communication circuit such as a telephone line network, satellite communication, the Internet, or an optical fiber cable to be remotely managed.

[0010] When there are many structures to be managed or when a wide area is to be managed, a plurality of structures to be managed are
A sub-management that divides a target structure into a plurality of groups so that one group is formed in adjacent structure units, and manages measurement information on structures in the structure group in each structure group unit. Means are provided, and the measurement information is managed (temporarily) by the sub-management means for each group, and each measurement information is transmitted to the central management means via the sub-management means to save labor. good.

According to the present invention, the management of a plurality of structures can be integrated and performed remotely at one or a small number of places, regardless of whether they are new or existing structures. With less wear, labor costs can be reduced, and total cost reduction and labor savings can be achieved. Also,
Acquisition of measurement information for integrated management of structures can also be automatically obtained at preset times from measurement devices set for each structure. The data communication cost can be reduced by obtaining the data at the same time.

Further, not only measurement information after completion, but also information such as construction records before completion is compiled into a database and managed by centralized management means, so that diagnosis by monitoring means becomes easy or diagnosis accuracy is improved. I do. In the monitoring means,
Labor saving can also be achieved by performing automatic monitoring using artificial intelligence or the like.

As described above, by using the integrated structure management system of the present invention, cost reduction and labor saving can be achieved, inspection of each structure at the site can be minimized, and long-term monitoring can be performed. You will be satisfied.

[0014]

Next, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a schematic configuration diagram illustrating an integrated management system according to the present embodiment. In the present embodiment, the monitoring target is an example of a civil engineering structure. In the case of monitoring of the civil engineering structure, changes in physical quantities such as strain to be measured are relatively gradual except for the situation immediately before the destruction, and it is considered that the management needs of the structure in that case are high. Can be Note that the management target of the present invention is not limited to civil engineering structures, but may be architectural structures such as buildings.

In this embodiment, the site 1 to be managed is
A set of target structures 1 is divided into a plurality of structure groups X such that the (structure to be monitored) constitutes one structure group X for each of the plurality of adjacent structures 1. And manage it. FIG. 1 illustrates a case where the target structure 1 is divided into m groups X. Each structure group X is assumed to be composed of a set of i (1 ≦ i ≦ m) structures 1.

A sub-management system 3 which is a relay point for data communication is provided for each of the structure groups X, and the measurement information data obtained from the plurality of structures 1 is transmitted to the communication personal computer for each group X. 3B performs integrated management. The sub management system 3 constitutes a sub management unit. By providing the sub-management system 3 (relay), the cost of the data device can be reduced.

In each of the structures 1 to be monitored, a measuring device 2 is installed at one or two or more specific measurement positions in the structure 1, and distortions generated in the structure 1 by the measuring device 2 are measured. Physical quantity measurement information data (measurement information) such as temperature, acceleration, and applied load are measured. The measuring device 2 can supply the measured information data to the corresponding sub-management system 3 via the optical fiber 6. In the present embodiment, the optical fiber 6 is used for transmitting the measurement information data from the measurement device 2 to the sub management system 3, but the present invention is not limited to this. What is necessary is just to transmit the measurement information data to the sub-management system 3 using an appropriate communication line according to the measuring device 2 to be used. Further, the communication line is not limited to a wired line but may be a wireless line.

Here, as the above-mentioned measuring device 2, a strain measuring device using an optical fiber as a sensor or a temperature measuring The device is considered as an example of a device suitable for the present system. In the present embodiment, a case where a distortion measuring device mainly using an optical fiber sensor is used as the measuring device 2 will be described as an example. Of course, each structure by seismic measurement using a seismometer as the measuring device 2, continuous monitoring such as volcanic eruption status monitoring using a monitoring camera as the measuring device 2, and acquisition of strict measurement information using a strain gauge or the like as the measuring device 2 The present system can also cope with the monitoring of the object 1.

The sub-management system 3 includes an optical data converter 3A, a communication personal computer 3B, and a recording unit 3C. The sub-management system 3 acquires measurement information data from the measurement device 2 provided for each structure 1 of the corresponding structure group X at each preset time t, and acquires the buffer information ( For example, if the design is to acquire one data per minute, the recording unit 3C including a ring buffer capable of accumulating 60 data in one hour)
Are registered sequentially. Further, when the sub management system 3 receives an inquiry about data from the integrated management system 4,
The corresponding data among the measurement information data registered in the recording unit 3C is transmitted to the integrated management system 4. As a method of transmitting data from each sub-management system 3 to the integrated management system 4, various communication lines 7 such as a telephone line by NTT-ISDN, satellite data communication, and the Internet can be exemplified. Further, the transmission method may be constructed so as to be individually different depending on the installation environment of the sub-management system 3 of each structure group X.

When the measuring device 2 using an optical fiber sensor is used, the sub-management system 3
The measurement information data sent from each measurement device 2 installed on the structure 1 belonging to the structure 1 is converted into digital data using the optical data conversion device 3A. Alternatively, the measurement information data is converted into an electric analog signal by the optical data conversion device 3A,
The data is converted into digital data by an A / D converter in the personal computer 3B, and the measurement information data is registered in a recording unit 3C such as a buffer by the processing of the communication personal computer 3B.

Here, in the case of strain measurement using an optical fiber, there are two types of B-OTDR system using Brillouin backscattered light and FBG system using Bragg reflection using an optical grating, depending on the measurement method. At present, for the measurement and analysis of B-OTDR and FBG, a dedicated device has been developed, so that the strain measurement of the structure 1 by the optical fiber sensor is sufficiently possible. However, the optical data converter 3
When a B-OTDR analyzer or an FBG analyzer is used as a dedicated device as A, one dedicated device must be used for each unit of each structure, but the B-OTD analyzer is used.
Both the R analysis device and the FBG analysis device are expensive, and if they are adopted in the system of the present embodiment that handles many structures 1, the system becomes very expensive. Incidentally, at present, the B-OTDR analyzer is 19 million yen and the FBG analyzer is 4 million yen, both of which are expensive.

Therefore, the optical data converter 3A according to the present embodiment does not use such an expensive dedicated device and is inexpensive, and is capable of transmitting light scattering data transmitted from an optical fiber sensor via an optical fiber cable. In addition, a device that simply converts the data so that it can be processed with an inexpensive ordinary data transmission cable is used. For example, simply convert optical data to digital data, or
A device that can convert the analog signal into an analog signal on the personal computer 3B side is used. A converter for transmitting a long distance by an optical cable may be used.

The integrated management system 4 includes a dedicated device 4A,
This is a centralized management means composed of a personal computer 4B and a database 4C. As described above, when the set time t is reached, an inquiry is made to the communication personal computer 3B of each sub-management system 3, and each structure at that time t The measurement information data of the object 1 is acquired and registered in the database 4C. For example,
The measurement information data at the time t at the structure j of one structure group i is represented by a time, a structure group number, and a structure number in the structure group as parameters such as Q (t, i, j). to manage.

In the case of strain measurement using an optical fiber, the integrated management system 4 performs B-OTDR measurement or FB measurement.
It is determined whether the measurement is of the G method, the input measurement information data is processed by the dedicated device 4A, and then input to the personal computer 4B. The personal computer 4B registers and manages the data in the database 4C. The dedicated device 4A includes a B-OTDR measuring device and F
It consists of a BG measuring device.

The diagnostic device 5 serving as a monitoring means acquires, for example, strain measurement information data ε (t, i, j) as a time series from the database 4C of the integrated management system 4, and obtains the strain in the target structure 1. Is determined based on the temporal change of the structure 1, and the state of the corresponding structure 1 is diagnosed. At this time,
Data can be automatically processed by an artificial intelligence system (a fuzzy system or / and an expert system using a neural network) to save labor. The process for diagnosing the structure in the diagnostic device 5 is appropriately selected according to the contents of the measurement information data. Although FIG. 1 shows the integrated management system 4 and the diagnostic device 5 separately, the personal computer 4B of the integrated management system 4 may also serve as the diagnostic device 5.

Here, an integrated management system for civil engineering infrastructure related to civil infrastructure information using optical fiber sensors, wherein the strain measurement using the optical fiber sensors is performed on each structure 1 and information on the earthquake data network is obtained. The integrated structure management system of the present embodiment may be adopted as an integrated management system for monitoring the lifetime of the included civil structure. In this case, by installing the integrated management system 4 or the diagnostic device 5 at the head office, site office, management office, or the like, the distortion or vibration of each civil engineering structure 1 is registered in the database 4C and remotely. It is possible to provide a system that performs centralized management, continuously determines the state of each structure 1, and performs a diagnosis for predicting a sudden accident.

Here, it is said that the optical fiber sensing can measure not only strain and temperature but also various physical quantities such as displacement, vibration, velocity, flow velocity, sound, magnetism, voltage / current, and radiation. Therefore, it is possible to measure the displacement, the vibration, and the speed of each of the structures 1 by the optical fiber sensor and to perform the integrated management. In the present embodiment, the sub management system 3 is provided as a relay, but the sub management system 3 may be omitted.

[0028]

As described above, when the integrated structure management system of the present invention is used, the status of a plurality of structures can be remotely monitored in an integrated manner. This has the effect that early response is possible.

[Brief description of the drawings]

FIG. 1 is a configuration conceptual diagram of a structure integrated management system according to an embodiment based on the present invention.

[Explanation of symbols]

 Reference Signs List 1 structure 2 measuring device 3 sub-management system 3A optical data conversion device 3B communication personal computer 3C recording unit 4 integrated management system (centralized management means) 4A dedicated device 4B personal computer 4C database 5 diagnostic device (monitoring device) 6 optical fiber 7 communication Line X Structure group

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Michio Matsumoto 1-25-1, Nishishinjuku, Shinjuku-ku, Tokyo Taisei Corporation F-term (reference) 2E176 BB38 2G075 BA01 BA03 BA16 CA01 CA50 DA02 DA03 FA11 FB01 FB07 FB08 FB16 FC14 GA15 GA16

Claims (1)

[Claims] 1. A plurality of measuring devices for respectively measuring a state of a plurality of structures after completion, and a central management means for remotely acquiring each measuring information measured by each measuring device and centrally managing the measuring information. And a monitoring means for determining the state of each structure based on measurement information data managed by the centralized management means.