JPH1149448A - Earthquake damage estimation system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To quickly perform restoration action by analysing relation between earthquake motion, construction of elevators, and damage based on disaster data due to earthquke generated beforehead and data of the elevator controlled in operation, and predicting damage based on the analysis result and displaying it. SOLUTION: When earthquake is generated, the maximum acceleration values are collected by a information collecting means 1, and the maximum acceleration values applied to respective elevators are obtained based on them. Next construction information as to the respective elevators preserved in an information recording device 2 are drawn out, a damage case data base 4 is made by a data analysis means 3, and in addition a damage estimation data base 5 is made based on the made damage case data. Thereafter by the damage estimation means 6, the damaged position, the damaged condition, and the damage generating rate are read out following to the pattern of a part of the damage data, from the table in the range corresponding to the maximum acceleration values received with the elevators in a pattern data base, and the results are displayed on a display device 7.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to an earthquake damage estimation system for an elevator.

[0002]

2. Description of the Related Art Conventionally, as a method of managing an elevator in the event of an earthquake disaster, for example, as shown in Japanese Patent Laid-Open No. 4-303300, an alert of an abnormality from a sensor provided in the elevator or a building manager is reported by a monitoring center. The monitoring center contacts the maintenance workers and dispatches them to the site. The elevator is provided with an earthquake control operation device, which automatically stops the car when an earthquake occurs. When the elevator stops due to this earthquake control operation device, a method is employed in which a maintenance worker is dispatched to the site to inspect the elevator, confirm that there is no abnormality, and then restart the elevator. Until the inspection work is performed,
Since it is not possible to know which part is out of order, the company is responding to the site where it has stopped. According to this method, if a malfunction has occurred in the stopped elevator, it cannot be determined until the recovery work is performed at that time.

[0003] In addition, a system capable of grasping a failure state online has been introduced for a large-scale elevator system at present, and a system capable of recovering efficiently is operated in some cases. It is difficult to construct such a large-scale system for elevators and home elevators.
In addition, if a communication line is disrupted or cut off due to an earthquake, it may be impossible to respond to a system that relies on online.

[0004]

For an elevator equipped with a system capable of grasping a failure state online, a worker is required to know in advance how much the failure situation is before going to the site. Before the work, if the elevators can be restored in the same time, and if multiple elevators are stopped, knowing in advance the amount of work required to restore each elevator from the failure status, Therefore, efficient recovery work can be performed.

[0005] However, for an elevator that is not fully equipped with a monitoring system, only information that the elevator has stopped can be obtained. Therefore, a worker is dispatched to all elevators that have been notified of the stop to investigate the situation on site. Recovery work needs to be performed. In this method, since it is not possible to grasp the whole situation of the disaster in advance, it is not possible to plan a recovery operation such as the arrangement of workers, and it is not possible to perform a quick and efficient recovery operation.

[0006] Therefore, if it is possible to predict in advance which area will be damaged in the event of an earthquake, including elevators that are not fully equipped with such a monitoring system, quick recovery activities are performed. It becomes possible. In addition, even in the case of a system that can grasp the failure status for all elevators, it is possible to make damage prediction based on data collected in advance when information is interrupted due to an earthquake disaster. If so, it is possible to carry out recovery activities quickly.

[0007]

In order to achieve the above object, according to the present invention, disaster data due to an earthquake that has occurred in advance, elevator data whose operation is controlled, and ground motion and elevator data are determined based on these data. A means for analyzing the relationship between the structure and damage of the vehicle and a means for predicting damage based on the analysis result predict and display possible damage to the elevator based on the earthquake information when an earthquake occurs.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below.

FIG. 1 shows the configuration of a damage estimation system. Reference numeral 1 denotes information collection means for collecting data necessary for damage estimation. The information collection means collects elevator management data, earthquake magnitude and seismic intensity information on past earthquakes, and elevator damage status at that time. Reference numeral 2 denotes an information storage device that stores the data collected in step 1, and reference numeral 3 denotes a data analysis unit that analyzes the information collected in step 1 and creates data for damage estimation. 4
Is a damage data column, and 5 is a damage estimation database for storing data necessary for damage prediction. Numeral 6 denotes a damage estimating means for estimating the damage status of the elevator from the data of the earthquake scale obtained from 1 and the data of the damage prediction obtained from 5 when an earthquake occurs. Reference numeral 7 denotes display means for displaying the result predicted in 6.

The processing performed by each device will be described below.

The contents of the information collected in step 1 are shown in FIG.
These are shown in (b) and (c). This information is composed of three types of data: earthquake data shown in 1a, elevator damage data during an earthquake shown in 1b, and elevator structure data shown in 1c. The seismic data is necessary to know the maximum acceleration value applied to the elevator during the earthquake.The location and magnitude of the epicenter and the maximum acceleration value at each seismic observatory and the seismometer installed by the Japan Meteorological Agency after the occurrence of the earthquake Is the data of the maximum acceleration value observed by the elevator. These data are digitized by electronically distributing the information electronically via a computer network or a telephone line, or by directly inputting the information non-electronically published by an operator.

Damage data is data of an elevator stop record due to the operation of a control device after an earthquake or a work report when an operator carries out a recovery work due to a failure. It is. These data should be recorded directly when the recovery operator enters the work report on the mobile terminal carried on site, or manually entered by the operator when reporting non-electronically. Digitized by

The structural data of the elevator is data representing the characteristics of the elevator, such as the model, installation year, and operation system of the elevator. These data are input electronically, for example, when the corresponding information is in a customer management database or the like. Structural data is transmitted via the control number
In association with the damage data, characteristics of the structure of the damaged elevator can be obtained from the damage data. The above data is stored in the information storage device 2.

Next, the data analysis processing performed in step 3 will be described. The processing performed here is to create a damage case database 4 from the data collected in step 1 and to create a damage estimation database 5 from the damage case database 4 for use in damage estimation. First, creation of the damage case database 4 will be described.

The damage case database 4 contains information on the structure of the elevator, such as information on damage such as the damage location of the damage that occurred in the elevator at the time of the earthquake and the contents of the damage, information on the structure of the elevator such as elevator specifications, operating years, and installation environment. The information is roughly composed of three pieces of information, such as information on earthquakes such as acceleration. FIG. 3 shows an example of the configuration of the damage case database 4. Collect at 1 and 2
First, the structural data and damage data are grouped for each management number from 1b and 1c with respect to the data recorded in, and the column of damage data and structure data of 4 is formed.
At this time, for an elevator having no corresponding management number in 1b, the damage data column of 4 is set to "no damage".

Next, for the elevator of the control number for which the maximum acceleration is observed from 1a, the maximum acceleration is set to 4
Fill in the earthquake data column of. For those for which the maximum acceleration is not observed, interpolation is performed using the hypocenter information of 1a, the observed maximum acceleration (observed point measurement values, elevator seismometers), and the geographical positional relationship between each elevator and ground motion observation points. Estimate calculation, etc., and enter the value. In addition,
In the following description, one line of data such as 4a is referred to as a record. In the case where one management number has a plurality of damages, the number is stored as a plurality of records in 4. The above processing is performed for each earthquake to obtain 4.

Next, a damage estimation database 5 for estimating damage to the elevator at the time of the occurrence of an earthquake is created based on the data in the damage data column 4 (FIG. 4). First, a pattern database 8 shown in FIG. 5 is created from the data prepared in the form of 4. This database is a pattern database in which the data stored in 4 is analyzed and the result is stored in a pattern format as shown in 8. Next, this analysis work will be described. First, classification is performed for each column of the damage data column 4. First, in each column, data with similar properties
Each group is grouped, and a representative value of the group is set as a representative value. For example, in the case of the damage column, when considering the structure of the elevator, grouping is performed for each function, such as the power section, car section, and rope section. assign.

The above-described classification work is performed for all the four columns. In FIG. _{5, a 1 ... a N1,} b 1 ... b N2
And the like represent representative values determined by such a classification operation. Next, each record of 4 is patterned using the representative values in the form shown in FIG. For example, in a record, the data in the column of the damage location is represented by a representative value a.
A ₁ if belonging to the _one group is patterned by 0,1 columns like the other one is 0. After patterning each record of 4 in this way, the number of identical patterns is counted, and the number is entered as the number of data of 8. Then, the patterns are rearranged in descending order of the number of cases. In addition, pattern data is not input for the case where the damage data column of 4 is “No damage”.

This table is created by classifying the maximum acceleration value applied to the elevator into 0-100 Gal, 100-200 Gal,. The size of the width is finely classified according to the number of records of the case data so that the data in each range does not become too small. This process is performed for all the earthquake damage cases stored in 4.

Next, a correlation coefficient is calculated from 8. The numbers 0 and 1 are numbered by i and j as shown in FIG. The value of the two-dimensional matrix that can be created
(X _ij ). For this value,

[0021]

(Equation 1)

[0022]

(Equation 2)

[0023]

V _{ii ′} = S _{ii ′} / (N−1) (Equation 3)

[0024]

(Equation 4)

(R _ij ) obtained as a result of the above calculation is the correlation coefficient value. The database 9 (FIG. 6A) records the correlation coefficient value between the representative value relating to the structure and the representative value relating to the damage from the correlation coefficient values obtained as described above, and the correlation coefficient value between the representative values relating to the damage is recorded. The recorded data is the database 10 (FIG. 6B). In addition, damage data column 4
, The total number of records excluding the management number that is duplicated in the range where the value of the maximum acceleration
B is the number of records in which “No damage” is entered in the damage data column. Then, (AB) / A is set as the damage occurrence rate in the acceleration range, and the damage occurrence rate in each acceleration range is calculated. These are stored in the damage incidence database 11 (FIG. 6).
(c)).

Next, a procedure for estimating damage will be described with reference to a flowchart shown in FIG.

First, when an earthquake occurs, the maximum acceleration value obtained from each information agency or an original earthquake information network is collected by the information collecting means 1, and the maximum acceleration value applied to each elevator is obtained based on this. Next, for each elevator, its structural information is extracted from 1c, and it is patterned by the classification method used when 8 was created. Next, from the range table corresponding to the maximum acceleration value received by the elevator out of 8, records in which the pattern of the structural data portion matches this pattern are extracted. According to the pattern of the damage data portion of this record, a damage location a _i and a damage status b _j are set. From the database 11, the value of the damage occurrence rate in the acceleration range received by the elevator is called.

FIG. 8A shows an example in which the three data thus called are displayed. In the above pattern search, when there are a plurality of matching data, they may be displayed in the descending order of the value of the number of data in 8. In the pattern search, a function such as the degree of pattern matching may be defined, and a function whose value is equal to or greater than a certain threshold may be displayed as a match.

When an earthquake occurs, these processes are immediately performed and stored in a storage device so that the damage prediction result can be searched by the building name or the management number. Accordingly, the worker can prepare tools and replacement parts necessary for the work before going to the destination according to the result of the damage prediction. This makes it possible to perform the recovery work efficiently.

Further, the overall damage prediction status of the stricken area is displayed as shown in FIG. 8B based on the prediction result, and the area under jurisdiction is divided based on the prediction result. An area is provided, and the number of elevators in each area where the damage occurrence rate exceeds a certain value is divided by the total number of elevators in the area as the area damage probability, and the area damage occurrence rate in each area is calculated. By displaying as in 7c of (c), it is possible to formulate an arrangement plan of the workers for performing the recovery work efficiently. When an earthquake occurs, the damage is predicted immediately and displayed as 7a, 7b, 7c.
For an elevator having a means for obtaining the damage status using a communication line or the like, it is conceivable to display the information preferentially instead of the prediction result and make a work plan. At that time, it is conceivable that actual information is used to predict damage to other elevators.

As shown in FIG. 14, by searching and displaying a combination of a damage and a representative value having a large correlation coefficient value from the databases 9 and 10 of the damage estimation database 5, it is closely related to the damage occurrence. You can know the structure of the elevator. By using this search result for damage prevention measures against elevator earthquakes, it is thought that earthquake damage can be reduced.

After the occurrence of the earthquake, the damage information is input to the information collection device 1 and the damage estimation database is updated as needed in order to increase the damage estimation accuracy.

[0033]

According to the present invention, it is possible to estimate the damage of an elevator in the event of an earthquake using only the information in the management center. Since it is possible to grasp the damage without being tied to the situation, it is possible to always provide information for supporting a stable damage recovery plan, and it is possible to always promptly restore the elevator by the earthquake.

[Brief description of the drawings]

FIG. 1 is a schematic configuration diagram of a damage estimation system according to the present invention.

FIG. 2 is a diagram showing an example of past damage case data.

FIG. 3 is a diagram showing a structure of a damage case database.

FIG. 4 is a schematic diagram of creating a damage estimation database according to the present invention.

FIG. 5 is a diagram showing a structure of a damage occurrence pattern database.

FIG. 6 is a diagram showing the structure of each database included in the damage estimation database.

FIG. 7 is a flowchart of damage prediction when an earthquake occurs.

FIG. 8 is a diagram showing an example of a damage estimation result display.

FIG. 9 is a diagram showing an example of a damage estimation result display.

[Explanation of symbols]

1 ... information collecting means, 1a, 1b, 1c ... collected information example, 2
... information storage device, 2a ... elevator management database,
3 Data analysis means, 4 Damage data section, 4a Record, 5 Damage estimation database, 6, 13 Damage estimation means, 7 Display device, 7a, 7b, 7c, 14 Result display example, 8 Pattern Database, 9, 10 ... database, 11 ... damage occurrence rate database, 12 ... information integration means.

 ──────────────────────────────────────────────────続 き Continued on front page (72) Inventor Takeki Ando 1-6-6 Kandanishikicho, Chiyoda-ku, Tokyo Inside Hitachi Building Systems Co., Ltd.

Claims (5)

[Claims] 1. Disaster data of an elevator caused by an earthquake that has occurred in advance and data of an elevator whose operation is controlled, means for analyzing the relationship between seismic motion and the structure and damage of the elevator based on these data, and analysis results thereof. Equipped with a means for predicting damage and a display device for displaying the prediction result,
Earthquake damage estimation system that displays possible damage forecasts for elevators when an earthquake occurs. 2. Damage estimation including three types of databases: a database in which damage occurrence patterns are arranged, a database in which correlations between damage occurrence locations and structural attributes of elevators are arranged, and a database in which correlations between damage occurrence locations are arranged. An earthquake damage estimation system characterized by using a database. 3. A damage estimation database according to claim 2, wherein a database in which the correlation between the damage occurrence location and the elevator structural attribute is arranged and a database in which the correlation between the damage occurrence locations are arranged. A database system which displays the tendency of damage occurrence for each device from the two databases. 4. A database system for displaying a prediction of an elevator damage situation in an area when an earthquake occurs, using a database in which damage occurrence patterns are arranged among the damage estimation databases according to claim 2. 5. A system for predicting possible damage to an elevator in the event of an earthquake, wherein a damage occurrence location, a damage situation, or a damage occurrence probability predicted in the elevator is displayed. Earthquake damage estimation system.