JPH02134500A - Leakage information displaying device - Google Patents

Abstract

PURPOSE:To reduce the range of leak generation and provide possibility of identifying the current leak generating point by calculating the distance from the leak sensor installed point to a bend of a piping within a circle indicating the range where leaks are presumed to be generated, and by indicating a circle with the dia. shrunk in accordance with this distance by reference to this bend as the center. CONSTITUTION:A leak sensor 1 measures leak sound on a piping system, and the share of time in which the leak sound exceeds a certain level, is calculated in the form of time integral rate, and the distance from the point at which the leak is generated actually is determined from the frequency of the leak sound. The leak distribution is expressed on a map with circles in sizes corresponding to the distance data of the leak points from the measuring point. If the bent of the piping lies within a displayed circle, the presumative range of leak points is shrunk one by one associate with the piping length to serve for correlational apprehension between a different pieces of leak sensing information, and thus the actual leak point is identified.

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Application Field) The present invention relates to a water leakage information display device that displays an image of the estimated location of water leakage in a water pipe system on a piping map.

(Prior art) A water leakage information display device used for conventional water leakage information management is
The estimated water leakage area is displayed as a circle centered on the measurement point where water leakage was detected.

(Problem to be Solved by the Invention) In other words, conventionally, the estimated water leak area is displayed by overlapping a map of the area where the water leak detector is installed with a circle centered on the measurement point, and in this case, the area where the water leak detector is installed is displayed by superimposing a circle centered on the measurement point. The extended distance of the piping route up to the point where the circles intersect and the diameter of the circle often do not match, so the leak location cannot be correctly indicated. To obtain the correct leak location through arithmetic processing, detailed piping length data must be memorized. It is necessary to keep it.

An object of the present invention is to provide a water leakage information display device that can accurately display the location of water leakage without having detailed pipe length data.

[Structure of the invention]

(Means and effects for solving the problem) The water leakage information display device according to the present invention displays a piping map of the area where the water leakage detector is installed, an identification code of the water leakage detector installed in this area, and this identification code. A means to save the coordinates on the map where the water leak detectors are installed as a map information file, and input information from each water leak detector, and for the water leak detector that detected a water leak, from the leak sound information to the water leak point. A means for calculating the distance of and displaying a circle with a diameter corresponding to this distance on a display device along with the piping map in correspondence with the coordinate position of the corresponding identification number in the map information file, and a coordinate indicating device such as a mouse device The system is equipped with a narrowing means that reduces the display diameter and displays it on the display device, and displays the installation position of the water leak detector in correspondence with the piping map, and when a water leak occurs, the corresponding water leak detection By displaying a circle with a diameter corresponding to the distance to the water leakage point centered on the installation point of the device to roughly display the estimated range of water leakage occurrence, and further indicating the white spot of the piping within the displayed circle. The distance from the installation point of the water leak detector to this white spot is calculated, and a circle with a reduced diameter corresponding to this distance is displayed centered on this white spot to reduce the range of the location where water leaks occur. This makes it easy to identify the location of water leakage on the piping map.

(Embodiment) An embodiment of the water leakage information display device according to the present invention is shown in FIG.

In FIG. 1, reference numeral 1 denotes a water leak detector, which is attached to a water meter section of a water pipe, and detects the distance to a water leak point by vibrations transmitted through the pipe wall.

Reference numeral 2 denotes a water leakage information processing device, which inputs data from a plurality of water leakage detectors. This water leakage information processing device 2 includes a file device 32, a display device 4. Keyboard 5° Mouse device 6. An image input device 7 and the like are connected to constitute a water leakage information display device.

The water leak detector 1 is installed on pipes, taps, etc., and measures the sound of water leakage in the piping system, and calculates the percentage of time during which the level of the water leakage sound exceeds a certain value as the hourly equinox rate, and also measures the frequency of the water leakage sound. From this frequency, the distance between the actual water leakage point and the measurement point is determined and stored together with the time integration factor.

Measured data from a plurality of water leak detectors 1 is input to the water leak information processing device 2, and a piping map is input as image information from the image input device 7, and this image information and water leak sound information are filed as a map information file. Device 3
The water leak information is stored on the display device [4] according to the operator's instructions.

The operation of the water leakage information display device according to the present invention is shown in a flowchart in FIG.

In Figure 2, first, an image input device i! 7, and is saved in the file device 3 as a map information file through processing by the water leakage information processing device (hereinafter referred to as CPU) 2 (step 8
a).

The piping map is input as a file name with the investigation area identification name for each leakage investigation area, and the input piping map is displayed on the display device 4.
At the same time, the installation point of the water leak detector 1 is set and input at the corresponding position on the piping map using the keyboard 5 and mouse device 6 (step 8b).

That is, when the location of the installation point is indicated on the screen of the display device [4] and the identification number of the water leakage detector 1 is input, the coordinates on the screen corresponding to the location and the identification number of the water leakage detector 1 are stored in the map information file. It is stored in the file device 3 as .

By performing this for each screen, that is, for each survey area, the identification numbers of the entire water leakage detectors 1 on the piping map correspond to the actual installation positions on a one-to-one basis.

The installed water leak detector 1 records various data (date and time).

The water leakage presence/absence, 1-hour integration rate, water leakage sound frequency, etc.) are measured, and these data are input to the CPU 2 (step 8c).

The CPU 2 determines which piping map these data correspond to based on the date and time of these data and the identification number of each water leak detector 1 that is input at the same time, and creates water leak information that corresponds one-to-one with the map information file. Save it as a file in the file device 3.

When displaying the water leakage distribution situation, the CPU 2 sends the map information file and the corresponding water leakage information file to the file device 3.
The map coordinates with the same identification number as the identification number of the point where there is water leakage according to the data in the water leakage information file are extracted from the map information file, and a circle is displayed on these coordinates (steps ad, 8e, 8f). ).

The radius R8 of the circle at this time is given as the distance from the installation point of the water leak detector 1 to the actual water leak location calculated from the water leak sound frequency or time integration rate of the data of the identification number, and point A is the distance from the water leak detector 1 to the actual water leak location. If the installation point is set to 1, the display will be as shown in FIG. 3(A).

If the display circle includes a picture point of the pipe, the extension distance of the pipe from point A at the intersection of the display circle and the pipe line will be larger than the above calculated distance, so use the mouse device 6 to When you specify the piping white point (for example, point B) in the circle above, the CPU
2 reads the coordinates of pixel B, calculates the distance Δr of pipe AB from the coordinates of pixel B and point A, subtracts the distance of AB from the radius R1 of the display circle, and uses this subtracted distance as the radius. R
8 is newly displayed with point B as the center as shown in FIG. 3(B).

Similarly, by pointing point C with the mouse device 6, a circle with a smaller radius R3 is drawn with point C as the center as shown in FIG.
).

By repeating this procedure until no pixel is included in the circle, the water leakage points can be narrowed down to a narrow range centered on the pixel (step 8g).

FIG. 4 is a flowchart showing the display processing procedure of the water leakage distribution situation by the CPU 2. In FIG. 4, as an example,
A case is shown in which the identification numbers of the water leakage detectors 1 in the investigation area identification name X9 area are 1 to N.

Through the processing from steps 9a to 91 in Fig. 4, it is determined whether each water leak detector 1 has detected a water leak for each investigation area, and if detected, the water leak sound frequency or time integration rate is used to detect the water leak to the water leak point. The distance is calculated, a circle radius is determined according to the calculated distance, and a circle with this radius is displayed on the area of the water leakage identification number on the piping map of the corresponding investigation area identification name.

FIG. 5 is a flowchart showing the calculation procedure for narrowing down the circles displayed by the process in FIG. 4, and the center coordinate (X
, Y), if there is a pixel of the piping within a circle displayed with radius R, the circle is displayed while reducing the radius of the circle so that there is no pixel of the piping within the circle.

In other words, when you specify the corresponding pixel B using the mouse device 6, its coordinates (D, S) are taken in by the CPU 2, and from the coordinates (x, y) of the center point A, Δr= (x-D).
+ (Y-y)'' calculates the distance Δr between pixel B and center point A, and subtracts Δr from the current radius R to create a new radius of R-Δr, creating a circle centered on pixel B. The estimated range of water leak points is reduced within

Below, the coordinates of the convex point B are (X, Y), and the radius of the new circle is R
1. Next, by replacing the coordinates of the corresponding pixel C with (cm, y) and repeating the above calculation, the estimated range of the water leak point is successively reduced.

〔Effect of the invention〕

As explained above, according to the present invention, water leakage information from a water leakage detector can be easily collected, analyzed, and stored, and the water leakage distribution can be displayed on a map with a circle of a size corresponding to the distance data between the measurement point and the water leakage point. Furthermore, if there is a piping point within the display circle, by specifying this point, the estimated range of the leak point can be sequentially reduced in relation to the piping length, making it easier to detect water leaks. Understand the interrelationships between information,
It becomes possible to easily identify the actual water leakage point.

[Brief explanation of the drawing]

Fig. 1 is a system configuration diagram showing one embodiment of the present invention;
The figure is a flowchart showing the processing procedure of the water leakage information display device, Figures 3 (A), (B), and (C) are diagrams showing the procedure for reducing the water leakage display range, and Figure 4 is the water leakage distribution situation of the water leakage information display device. FIG. 5 is a flowchart showing the steps of the display process. FIG. 5 is a flowchart showing the steps of the process of narrowing down the water leakage display circles. l...Water leak detection) I:+ 2...Water leakage information processing unit (CPU) 3...File device...Display device 5...Keyboard 6...Mouse device 7...Image input device (8733) Representative Patent Attorney Yoshiaki Inomata (and 1 other person)

Claims (1)

[Claims] means for saving a piping map of a water pipe and the position coordinates of a water leak detector installed in the water pipe as a map information file;
Means for calculating a distance to a water leak point from water leak sound information from a water leak detector and displaying a circle having the position of the water leak detector as a center point and the calculated distance as a radius on a display device together with a piping map as a water leak estimation area, and a mouse; Calculate the distance between a point on the pipe specified by a coordinate indicating device such as a device and the center point of the circle above, and subtract this distance from the radius of the circle, and use the value as the radius and define the point on the pipe as the center point. What is claimed is: 1. A water leakage information display device, characterized in that the water leakage information display device is equipped with means for narrowing down a water leakage estimation region, which displays a circle as a reduced water leakage estimation region, and sequentially reduces the display in accordance with subsequent specifications.