JPH0896039A - Water pipeline information management device - Google Patents

Abstract

PURPOSE: To provide a water pipeline information management device which can effectively maintain and manage a water pipeline network. CONSTITUTION: The water pipeline information management device is provided with a water pipeline network chart 8 where the water pipelines are displayed in superposition on a map, a measurement data collection means which stores the attribute data on the types, the diameters, the years of construction of water pipelines in a data base to attain the maintenance/management of a water pipeline network and measures at least one of the flow rate, the pressure and the vibration of the water flowing through a measurement point of the water pipeline and collects these measurement data, a storage means 3 which stores the measurement data, a display means 6 which shows the measurement data stored in the means 3 on a screen 6A in relation to the chart 8, and a central processor 1 which processes the measurement data stored in the means 3 to diagnose the presence or absence of the abnormality of the water pipeline and to specify the point of abnormality.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a distribution pipeline network diagram in which distribution pipelines are superimposed on a map, and the type and diameter of the distribution pipeline,
The present invention relates to a water supply pipeline information management device that stores a database of attribute data such as the year of installation and manages a distribution pipeline network.

[0002]

2. Description of the Related Art Conventionally, a distribution pipeline network diagram in which distribution pipelines are superimposed on a map and attribute data such as pipe type, pipe diameter, installation year, etc. of the distribution pipes have been made into a database, A so-called computer mapping system is known as a water pipe information management device for maintaining and managing a network. This computer mapping system uses a computer to centrally manage water distribution network diagrams and related information, and to improve the efficiency and sophistication of water supply operations.
It is used to improve customer service.

[0003]

However, this conventional water pipe information management device is mainly intended to manage the drawings of the water distribution network, and uses the measurement data of the water distribution network. It is not used for road network maintenance. For maintenance of water distribution network, for example, in order to prevent the occurrence of water leaks in advance, perforation due to corrosion of water pipes that causes it, cracks due to material deterioration, inspection of joint defects etc. Although there are repairs and the like, conventionally, this type of inspection, repair, etc. is carried out at a predetermined time throughout the year by a skilled worker who goes to the place where the water pipe is installed during the nighttime.

[0004] In particular, water leakage rapidly expands the water leakage site of the water distribution pipe due to the substance's dissolving power of water and the physical action of water pressure, not only giving a quantitative loss of water and an economic loss to the water supply company. However, this may cause the occurrence of underground cavities due to the growth of leaked water, secondary disasters such as road collapse, and the deterioration of water quality due to the entry of sewage into the water distribution pipe after water cutoff. ing. However, in the conventional method in which a skilled worker goes to the place where the water pipe is installed to inspect and repair at night, the flow rate and water pressure are measured as temporary work only at the time of leakage investigation, so it is possible to constantly monitor the data. However, there is a limit to the early detection of water leakage and the prevention before it occurs.
In addition, forcing skilled workers to work late at night in the working environment,
There is a problem that conditions are not good, and work plans and inspection data are saved by using blueprints and writing them with colored pencils, etc., which is inefficient and it is not possible to sufficiently reuse the saved data. .

It is a first object of the present invention to provide a water supply pipeline information management device capable of efficiently maintaining and managing a distribution pipeline network.

A second object of the present invention is to provide a water pipe information management device suitable for early detection and prevention of leakage of water in a distribution pipe network.

A third object of the present invention is to provide a water pipe information management device capable of maintaining an excess or deficiency of water pressure in consideration of height.

[0008]

In order to achieve the first object, the water pipe information management device according to claim 1 of the present invention is a water pipe in which the water pipes are superimposed and displayed on a map. A water pipe information management device that manages the distribution pipe network and the attribute data such as pipe type, pipe diameter, installation year, etc. of the distribution pipe to maintain and manage the distribution pipe network, and measures the distribution pipes. Measurement data collecting means for measuring at least one of the flow rate, pressure, and vibration of water flowing at a location and collecting it as measurement data, storage means for storing the measurement data, and measurement data stored in the storage means Is displayed on the screen in association with the distribution pipeline network diagram, processing means for processing the measurement data stored in the storage means, and abnormality of the water distribution pipeline based on the processed measurement data. Diagnosis and abnormality And a conduit abnormality diagnosis means for identifying and Tokoro.

In order to achieve the second object, the water supply pipeline information management device according to claim 5 of the present invention has a distribution pipeline network diagram in which a distribution pipeline is superimposed on a map and the distribution pipeline. A water pipe information management device that creates a database of attribute data such as pipe type, pipe diameter, and year of installation of water pipes, and manages the water distribution pipe network. A flow rate monitoring instrument that measures the flow rate and collects the flow rate data; a storage unit that stores the flow rate data as measurement data;
Display means for displaying on the screen the measurement data stored in the storage means in association with the distribution pipeline network diagram, and the measurement data stored in the storage means being processed to cause water leakage in the distribution pipeline network. It has a leakage occurrence water distribution pipeline specifying means for diagnosing whether or not there is water leakage in any of the water distribution pipelines of the water distribution pipeline network.

In order to achieve the second object, the water pipe information management device according to claim 7 of the present invention has a distribution pipe network diagram in which water distribution pipes are superimposed and displayed on a map and the distribution pipes. A water pipe information management device that creates a database of attribute data such as pipe type, pipe diameter, and year of installation of water pipes, and manages the water distribution pipe network. A water pressure monitoring instrument that measures pressure and collects water pressure data, and a storage unit that stores the water pressure data as measurement data,
Display means for displaying on the screen the measurement data stored in the storage means in association with the distribution pipeline network diagram, and the measurement data stored in the storage means being processed to cause water leakage in the distribution pipeline network. It has a leakage occurrence water distribution pipeline specifying means for diagnosing whether or not there is water leakage in any of the water distribution pipelines of the water distribution pipeline network.

In order to achieve the second object, the water supply pipe information management device according to the eighth aspect of the present invention has a water distribution pipe network diagram in which water distribution pipes are superimposed and displayed on a map, and the distribution pipe. A water pipe information management device that creates a database of attribute data such as pipe type, pipe diameter, installation year, etc. of water pipes, and manages the water distribution pipe network. A vibration monitoring instrument that measures the resulting vibration and collects vibration data, a storage unit that stores the vibration data as measurement data, and a screen in which the measurement data stored in the storage unit is associated with the water distribution network diagram. Display means to display in
The measured data stored in the storage means is processed to diagnose whether or not there is water leakage in the water distribution pipeline network, and any water distribution pipeline in the water distribution pipeline network has leaked. It has a leakage occurrence water distribution pipeline specifying means for specifying whether or not there is.

In order to achieve the second object, the water pipe information management device according to claim 9 of the present invention has a water distribution pipe network diagram in which water distribution pipes are superimposed and displayed on a map and the distribution pipe. A water pipe information management device that creates a database of attribute data such as pipe type, pipe diameter, and year of installation of water pipes, and manages the water distribution pipe network. A flow rate monitoring instrument that measures the flow rate and collects the flow rate data, a water pressure monitoring instrument that measures the pressure of the water flowing at the measurement point of the water distribution line to collect the water pressure data, and the flow rate data and the water pressure data. Storage means for storing as measurement data, display means for displaying the measurement data stored in the storage means on the screen in association with the water distribution network diagram, and processing the flow rate data stored in the storage means. There is a leak in the distribution pipeline network. Water leakage diagnosis means for diagnosing whether or not, and based on the diagnosis result of the water leakage diagnosis means and the water pressure data, it is specified which of the water distribution pipelines in the water distribution pipeline network is leaking. It has a leakage occurrence distribution pipeline specifying means.

In order to achieve the third object, the water pipe information management device according to the twelfth aspect of the present invention has a distribution pipe network diagram in which the water distribution pipes are superimposed and displayed on the map, and the distribution pipes. A water pipe information management device that creates a database of attribute data such as pipe type, pipe diameter, installation year, etc. of water pipes and maintains and manages the distribution pipe network, corresponding to the two-dimensional coordinate points on the map. Provided with means for providing at least one height data of the topographical elevation data and the building height data corresponding to the two-dimensional coordinate points, and determining excess or deficiency of water pressure based on the height data A means for determining excess or deficiency of water pressure is provided.

[0014]

According to the water pipe information management device according to claim 1 of the present application, the measurement data collecting means measures at least one of the flow rate, the pressure, and the vibration of the water flowing to the measurement point of the water distribution pipe. Are collected as measurement data, and the storage means stores and saves the collected measurement data. The display means displays the measurement data stored in the storage means on the screen in association with the distribution pipeline network diagram, and if necessary, superimposes the map on the map to display the distribution pipeline network diagram and the measurement data. Output as. The processing means is the measurement data stored in the storage means,
For example, the flow rate data is processed to diagnose an abnormality in the water distribution state, and the pipeline abnormality diagnosing means diagnoses which of the distribution pipelines has an abnormality based on the processed measurement data. Identify the abnormal location of the diagnosed water distribution line.

According to the water pipe information management device of the present invention, the flow monitoring instrument collects flow data by measuring the flow rate of the water flowing through the measurement point of the water distribution line. The water pressure monitoring instrument collects the water pressure data by measuring the pressure of the water flowing in the measurement point of the water distribution line, and the vibration monitoring instrument collects the vibration data caused by the water flowing in the measurement point of the water distribution line. The storage means stores the flow rate data, the water pressure data, and the vibration data as measurement data, and the display means displays the measurement data stored in the storage means on the screen in association with the water distribution network diagram and superimposes it on the map as necessary. Then, the distribution pipeline network diagram and the measurement data displayed on the screen are output as a drawing. The leakage occurrence pipeline identifying means processes the measurement data stored in the storage means to diagnose whether there is leakage in the distribution pipeline network, and to which distribution pipeline in the distribution pipeline network. Identify whether there is a leak.

According to the water pipe information management device of claim 9 of the present application, the flow rate monitoring instrument collects flow rate data by measuring the flow rate of the water flowing to the measurement point of the water distribution channel, and the water pressure monitoring instrument is Water pressure data is collected by measuring the pressure of the water flowing through the measurement points of the distribution pipeline. The storage means stores the flow rate data and the water pressure data as measurement data. The display means displays the measurement data stored in the storage means on the screen in association with the water distribution pipeline network diagram. The water leakage diagnosis means processes the flow rate data stored in the storage means to diagnose whether or not there is a water leak in the water distribution pipeline network, and the water leakage occurrence distribution pipeline identification means uses the diagnosis result of the water leakage diagnosis means and the water pressure data. Based on the above, which of the distribution pipelines in the distribution pipeline network is leaking is identified. Preferably, the vibration data obtained by the vibration monitoring instrument is used to specify the leakage location of the identified leakage occurrence water distribution pipeline.

According to the water pipeline information management device of claim 12 of the present application, the assigning means corresponds to at least one of the terrain elevation data and the building height data corresponding to the two-dimensional coordinate points on the map. One height data is given corresponding to the two-dimensional coordinate points, and the water pressure excess / deficiency determination means determines excess or deficiency of water pressure based on the height data, and preferably the display means is topographical elevation data and building height. Based on the data and the installation position data of the water distribution pipeline, the topography of the map, the building, and the water distribution pipeline are displayed in a sectional view or a three-dimensional perspective view.

[0018]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In FIG. 1, 1 is a central processing unit (computer), 2 and 3 are databases as storage means, and 4
Is a keyboard as an input means, 5 is a mouse as an input means, 6 is a display device as a display means, 7 is a water distribution trunk line, 8 is a water distribution pipeline network, and 9, 10 and 11 are its distribution pipeline network 8. It is the main water distribution line. Here, the water distribution network 8 refers to a block of blocks that facilitates management of the water distribution network, and there are a plurality of blocks. For example, a dendritic network of the water supply terminal area or an independent network of a housing complex is a block. The distribution main line 7 is a distribution pipe on the upstream side connected to these pipe networks. The block is conceptually divided into a large block, a medium block, and a small block. A group of several small blocks is called a medium block, and a group of several medium blocks is called a large block.

A flow monitoring instrument 12 for measuring flow data is provided in the water distribution network 8 just downstream of the branch point from the distribution trunk 7. The water distribution pipelines 9, 10 and 11 are branched from the water distribution pipeline on the downstream side of the flow rate monitoring instrument 12, and one water distribution pipeline 9 measures the pressure of the water flowing through the water distribution pipeline 9 on the upstream side thereof. The water pressure monitoring instrument 13 and the two vibration monitoring instruments 14 and 15 for measuring the vibration caused by the water flowing to the measurement location and collecting the vibration data are provided. Water distribution line 10
Is provided with two vibration monitoring instruments 17 and 18 on both sides of one water pressure monitoring instrument 16. Water distribution line 1
There are two vibration monitoring instruments 19 and 20 in the water pressure monitoring instrument 2.
1 is provided on the upstream side. Flow rate monitoring instrument 12, water pressure monitoring instruments 13, 16, 21, vibration monitoring instruments 14, 15,
Reference numerals 17 to 20 serve as a measurement data collecting unit that collects measurement data by measuring the flow rate, pressure, and vibration of water flowing to the measurement points of the water distribution network 8.

The flow rate monitoring instrument 12 measures the flow rate of water flowing through the water distribution pipe 22, for example, which is shown in an enlarged manner in FIG. 2, and a meter installation location 23 is provided at the buried location of the water distribution pipe 22. The flow rate monitoring instrument 12 includes a main body portion 12A and a sensor portion 12
It is composed of B and. The main body part 12A is a data logger part 12 including an ultrasonic wave transmission circuit, an ultrasonic wave reception circuit, and an arithmetic circuit.
The sensor unit 12B includes a transmission sensor 12E and a reception sensor 12F. Each of the sensors 12E and 12F is attached to the water distribution pipe 22 by a fixing fitting 12G. The flow rate monitoring instrument 12 measures the propagation time until the ultrasonic wave emitted from the sensor 12E is received by the sensor 12F, and propagates when there is a flow velocity based on the propagation time of the ultrasonic wave when the flow velocity of water is zero. The velocity and the direction are measured depending on the magnitude of time, and the flow rate is obtained by the flow velocity and the pipe diameter. The structure itself of the flow monitoring instrument 12 is known. The flow rate data from the flow rate monitoring instrument 12 is taken out via a transmission cable 12H, which in this embodiment is directly connected to the central processing unit 1 via, for example, a telephone line. However, the flow rate data obtained by the flow rate monitoring instrument 12 may be wirelessly transmitted to the relay location and transmitted to the central processing unit 1 via the relay location. In this embodiment, the sensors 12E and 12F are provided above the water distribution pipe 22, but one sensor is provided above the water distribution pipe 22 and the other sensor is provided below the water distribution pipe 22. Good. If an ultrasonic sensor is used as the flow rate monitoring instrument 12, the flow rate monitoring device can be installed externally without cutting the water distribution line, so that the flow rate monitoring device can be simplified regardless of the diameter of the pipe. Can be attached to the water distribution line.

The water pressure monitoring instruments 13, 16, 21 and the vibration monitoring instruments 14, 15, 17 to 20 are attached to a fire hydrant or a water faucet. For example, as shown in FIG. 3, the water pressure monitoring instrument 13 is a sensor. The sensor element 13A includes a portion 13A and a data logger portion 13B, and the probe of the sensor portion 13A is inserted into water from a fire hydrant port 23A provided at the top of the fire hydrant body 23 installed in the water distribution conduit 9. Further, for example, the vibration monitoring instrument 14 includes a sensor unit 14A and a data logger unit 14B, the sensor unit 14A includes, for example, a submersible microphone, and a water faucet opening 24A provided on the top of the water faucet body 24.
Has been inserted into the water from. A publicly known one can be used as the fire hydrant or the water hydrant, and the water pressure monitoring instruments 13, 16 and 2 can be used.
1, the vibration monitoring instruments 14, 15, 17 to 20 are also known similarly to the flow rate monitoring instrument 12, and the water pressure data and the vibration data may be directly transmitted to the central processing unit 1 via the transmission cable 12H or relayed. You may wirelessly transmit via a location.

The present invention is not limited to this, and it is also possible to go to each monitoring instrument installation location and collect the measurement data stored in a time series every time a fixed time elapses. In this case, it is desirable that the power source of each of these monitoring instruments be of a battery drive type in order to avoid AC power source construction.

A keyboard 4, a mouse 5 and a display device 6 are connected to the central processing unit 1 and storage means 2 and 3 are connected.
Information is exchanged with the 3rd party. The storage means 2 includes map data, water distribution network diagram data, pipe types related to water distribution pipes, pipe diameters,
Attribute data such as the year of installation, flow rate monitoring instrument, water pressure monitoring instrument, vibration monitoring instrument data are stored.
The storage means 3 stores and saves the flow rate data, the water pressure data, and the vibration data collected in time series by the measurement data collection means.

The water distribution network diagram data has a data structure, for example, as shown in FIG. 4 in order to make it into a database. As shown in (a), the drawing ID, the pointer to the drawing data, and the display object. A main data structure consisting of a pointer to and an object ID as shown in (b)
And a data chain structure consisting of area data and a pointer designating the next object, and drawing data designated by the pointer to the drawing data as shown in (c). The drawing ID is coded for each drawing, and when the drawing ID is inputted by the input means, the central processing unit 1 follows the pointer to the drawing data, for example, as shown in FIG. It is displayed on the screen 6A of the display device 6. In FIG. 7, 24
Is a flow rate monitoring instrument mark corresponding to the flow rate monitoring instrument 12, 25 is a water pressure monitoring instrument mark corresponding to the water pressure monitoring instruments 13 and 16, and 26 is a vibration monitoring instrument mark corresponding to the vibration monitoring instruments 14 and 15. There is.

When the water pressure monitoring instrument mark 25 is pointed by the cursor 27 using the input means such as the mouse 5, the central processing unit 1 is clicked by the mouse 5.
Obtain the Y coordinate and start searching the data chain structure according to the pointer to the display object. Then, the central processing unit 1 compares the area data of a plurality of types of display object IDs with the XY coordinate values, and if they do not match, moves to the next display object ID according to the pointer, and moves to the next display object ID of the monitoring instrument designated by the cursor 27. Display object I
Identify D. Although the distribution pipeline network is shown in FIG. 7, topographic maps of roads, houses, etc. are omitted.

The pipeline attribute data and instrument attribute data have a data structure as shown in FIG. 5, for example, and the pipeline attribute data is composed of a pipeline attribute record and a display attribute record as shown in (a). The instrument attribute data consists of instrument attribute records and display attribute records as shown in (b). The pipeline attribute record consists of pipeline ID, water distribution pipeline type, pipeline diameter, pipeline length, flow velocity coefficient, installation date, and block ID to which the pipeline attribute data is displayed.
D, drawing ID, and object ID. The instrument attribute record consists of the instrument ID, the type of the monitoring instrument, the type-specific attribute, the installation date, the installation water distribution line ID, and the block ID to which it belongs. The display attribute record of the instrument attribute data consists of the instrument ID, drawing ID, and object ID. Become.

The measured data has, for example, a data structure as shown in FIG. 6, and as shown in (a), a main data structure composed of an instrument ID, a pointer to real-time data, and a pointer to processed data, As shown in (b), a data chain structure including a data ID, processed data, and a pointer, and as shown in (c), time-series real-time data Pt, Pt-1, Pt-2, Pt of each monitoring instrument. −
n and.

When the central processing unit 1 identifies the object ID designated by the cursor 27, the central processing unit 1 acquires the pipeline ID corresponding to this object ID from the pipeline attribute record of the pipeline attribute data, and at the same time, displays the instrument attribute data. Get the instrument ID from the record. Central processing unit 1
When the instrument ID is acquired, the time-series real-time data is obtained according to the pointer to the real-time data based on the main data structure of the instrument data, and the time-series data 28 graphed on the screen 6A is displayed.

Further, for example, the codes Q1, Q2, ... And the current values of the flow rates indicated by the respective flow rate monitoring instruments are displayed on the screen 6A as instrument IDs corresponding to the flow rate monitoring instruments, and the respective water pressure monitoring instruments are displayed. When the codes P1, P2, P3 ... And the current water pressure values 30, 40, 20 ... Corresponding to the respective water pressure monitoring meters are displayed as the corresponding instrument IDs, and the code P1 is entered by the keyboard 4, the central processing is performed. The device 1 retrieves the drawing ID and the object ID from the display attribute record of the instrument attribute data, calls the drawing data according to the pointer of the drawing data of the main data structure shown in FIG. According to the pointer to the display object of the structure, the monitoring instrument corresponding to the code P1 (here, the water pressure monitoring instrument 1
Search 3). Then, the central processing unit 1 displays the distribution pipeline network diagram 23 corresponding to the block to which the code P1 belongs on the screen 6A as shown in FIG. 8 and blinks the water pressure monitoring instrument mark corresponding to the water pressure monitoring instrument 13. . The central processing unit 1 reads the time-series data in parallel with the search / display processing of the water distribution network FIG. 23 according to the pointer to the real-time data of the main data structure shown in FIG. 6, graphs this, and graphs it. The displayed time series data 28 is displayed on the screen 6A.

The above is an example of the functions of the central processing unit 1. The central processing unit 1 has the functions described below in addition to those functions.

The function of the central processing unit 1 is to perform a processing function for processing the measurement data stored in the storage means, a diagnosis of presence / absence of abnormality of the water distribution pipe based on the processed measurement data, and an abnormal location. It is roughly divided into the function to identify the pipeline abnormality diagnosis function, and the abnormality diagnosis of the water distribution state is performed by processing the flow rate data, the hydraulic pressure data, and the vibration data, and the pipeline abnormality diagnosis is the processed flow rate data and the hydraulic pressure data. , The vibration data is used, and the details will be explained by taking an example for the diagnosis of water leakage.

The flow rate data, water pressure data, and vibration data are sequentially collected as raw data and stored in the storage means 3 via the central processing unit 1. The central processing unit 1 processes the flow rate data stored in the storage means 3, analyzes the flow rate data, and diagnoses whether or not there is water leakage in the water distribution pipeline network 8. For example, the central processing unit 1 analyzes a change in the flow rate every day, and in a housing estate, etc., in the morning (4-5
The amount of water used starts to increase from the hour) and fluctuates within a certain predetermined amount during the day, but at night, especially at midnight (for example, 0: 00-4).
Since almost no water is used within the range of time), it is estimated that the flow rate change curve Q draws a curve as shown in FIG. 9 when there is no water leakage, and in FIG. 9, symbol M1 is the average of the measurement points. The flow rate. When there is water leakage in the distribution pipeline network 8, as shown in FIG. 10, the flow rate change curve Q shows a predetermined amount M2.
Thus, the average flow rate M1 'increases, and there is a constant flow rate even in the midnight time zone. Therefore, the central processing unit 1 can process and analyze these flow rate data to diagnose whether or not there is water leakage in the distribution pipeline network 8. In addition, the central processing unit 1 obtains the maximum daily flow rate PMAX and the minimum daily flow rate PMIN by analysis based on this flow rate data. The central processing unit 1 calculates the average flow rate M1, the amount of water leakage (leakage amount = PMIN-estimated water usage amount), and calculates the leakage rate (leakage rate = leakage amount / M1), the maximum daily flow rate PM.
AX, daily minimum flow rate PMIN, average flow rate is used to grasp water use characteristics (water use tendency) for each residential area, industrial area, office district, downtown block, and daily maximum flow rate PMAX and daily minimum flow rate PMIN Judgment of obstacles and water quality, and abnormal behavior of flow rate. For example, when the difference between the maximum flow velocity and the minimum flow velocity is large, it is determined that the water supply capacity is insufficient due to an in-pipe fault. The cause of this is considered to be the shortage of the pipe diameter and the adhesion of scale (scale, rust) inside the pipe.

On the other hand, when the difference between the daily maximum flow velocity and the daily minimum flow velocity is small, it is considered that the pipe diameter is excessively large or water is stagnant. In this case, deterioration of water quality due to stagnant water There is concern about ductal damage such as scale generation, proliferation, and precipitation in the tube. By analyzing the flow rate data for each unit of time of these daily flow rate data in more detail, it is possible to grasp the detailed behavior of the flow rate. It is possible to detect the inflow and stop of water. These analysis and determination results are stored in the storage means 3.

Next, when the central processing unit 1 judges that there is an abnormality in the water distribution pipeline 8 as a result of the diagnosis of the water leakage diagnosis means, any one of the distribution pipelines 8 is determined based on the water pressure data. Vibration data from a vibration monitoring instrument that collects vibration data by identifying whether or not water leakage has occurred in the water pipeline and measuring the vibration caused by water flowing to the measurement point of the water distribution pipeline Based on the identification result of (1) and (2), a process is performed to identify which part of the identified water leakage distribution pipeline has water leakage.

Now, as schematically shown in FIG. 11, assuming that there is water leakage in the water distribution pipe 29 on the downstream side of the flow monitoring instrument, water pressure monitoring instruments 30 and 31 are provided in the water distribution pipe 29. It is assumed that the vibration monitoring instruments 32 and 33 are provided between the monitoring instrument 30 and the water pressure monitoring instrument 31, and the vibration monitoring instrument 35 is provided in the water distribution line 34 in the vicinity of the vibration monitoring instrument 32. Instrument 32 and vibration monitoring instrument 3
It is assumed that there is a water leak occurrence point 36 between the point 3 and 3.

Then, since the fluctuation curve A-1 of the water pressure data obtained by the water pressure monitoring instrument 30 has little influence of water leakage, for example, the curve shown in FIG. The fluctuation curve A-2 is greatly affected by water leakage and becomes in a poor water supply state, and since the water pressure decreases and fluctuates irregularly, the fluctuation curve A-2 has the aspect shown in FIG. Therefore, the central processing unit 1 can identify the water leakage distribution pipe by comparing and analyzing the water pressure data of the water pressure monitoring instruments that are close to each other. The central processing unit 1 can also diagnose the presence or absence of water leakage by comparing the theoretical value of the flow rate flowing through the distribution pipe 29 with the actual flow rate data and the water pressure monitoring instrument of the distribution pipe 29. It is also possible to identify the water leakage distribution pipes by comparing the theoretical value of the water pressure simulation with the actual water pressure data. Further, the central processing unit 1 may analyze the maximum water pressure, the minimum water pressure, and the average water pressure on a daily basis from the time-series water pressure data, and judge the presence / absence of water leakage based on the magnitude of the difference between the highest water pressure and the lowest water pressure. . Furthermore, by analyzing the time-series data in detail, the abnormal behavior of water can be grasped, and for example, when a rapid decrease in water pressure is observed in the time-series data, it is determined that the water hammer phenomenon that causes pipe breakage has occurred. . In addition, it is determined whether there is excessive water pressure or underwater pressure according to the attributes of the water distribution pipeline, and in the case of excessive water pressure, leakage will occur. Prevention can be performed, and in the case of underwater pressure, it causes poor water supply, so by analyzing this underwater pressure, poor water supply can be prevented in advance.

Further, the central processing unit 1 has a vibration monitoring instrument 3
Processing each vibration data obtained by 2, 33, 35,
The water leak occurrence point 36 is specified by obtaining the sound pressure peak, the sound pressure distribution shape, and the sound pressure waveform pattern. For example, the distribution B-1 of the vibration data obtained by the vibration monitoring instrument 32 is shown in FIG.
As shown in (a), since it is close to the water leak occurrence point 36 (sound source), its peak is large and its distribution width is narrow, and the distribution of the same shape is obtained. Vibration monitoring instrument 3
The distribution B-2 of the vibration data obtained by No. 3 is shown in FIG.
As shown in (b), since it is far from the water leakage occurrence point 36, the width of the vibration data distribution is wide and there is almost no reproducibility. This is because it is considered that an irregular sound other than the sound caused by the outflow of water at the water leak occurrence point 36 is captured. Further, the distribution B-3 of the vibration data obtained by the vibration monitoring instrument 35 is also far from the water leakage occurrence place 36 as shown in (C), so that the width of the distribution of the vibration data is wide and there is almost no reproducibility. Therefore, by processing the respective vibration data obtained by the respective vibration monitoring instruments 32, 33, and 35 that are close to each other and comparing and analyzing these, it is determined that the water leakage occurrence point 36 exists near the vibration monitoring instrument 32. It will be possible. The processing and analysis results of these measurement data are also stored in the storage means 3. In this case, if necessary, the distribution pipeline network diagram 8 superimposed on the map and displayed on the screen 6A, the flow rate data, the water pressure data, and if necessary, the vibration data can be output as the drawing 6B.

Then, after inspecting and repairing this leaking point,
Each measurement data is collected again, each measurement data is processed and analyzed in the same procedure, and each measurement data after the water leakage treatment is stored in the storage means 3. And the central processing unit 1
Repeats the same procedure when there is water leakage in other water distribution pipelines, and when there is no water leakage in the water distribution pipeline network 8, performs other pipeline abnormality diagnosis and determines whether there is a pipeline failure. To do. When there is a pipeline failure, the measurement data is processed, or the measurement data is compared with theoretical data obtained by simulation to identify the cause.

The central processing unit 1 analyzes the flow rate data, the water pressure data, and the vibration data, performs correlation analysis of these,
It is also possible to determine whether or not there is an abnormality in the pipeline.

Based on the result, when the pipeline abnormality is water leakage, the water supply company investigates the actual location of the water leakage, and whether or not it is economically disadvantageous to investigate the water leakage location.
Make a realistic decision as to whether or not an emergency is needed,
When it is determined that the effect is weak even when going to the water leakage site and conducting an investigation, monitoring is continued, and when it is determined that an actual investigation should be performed, using the water pipe information management device according to the present invention, Of the distribution pipeline network diagram in which the distribution pipelines are superimposed on the map and the attribute data such as pipe type, pipe diameter, installation year, etc. of the distribution pipes, the required data related to the water distribution pipelines The drawing 6B of the network diagram of the water distribution pipeline is output. Then, based on this drawing 6B, the selection of the leakage inspection method, the work procedure, the process are planned and planned, the inspection work is performed, and it is determined which of repair inspection, repair, replacement, and continuous monitoring is performed,
If it is thought that there is a cause for the pipeline life or pipe type, consider changing the pipeline, and if it is in time for repair, repair it.
The repair data is stored in the storage means 2. Then, finally, the leakage prevention result is stored in the storage unit 2.

Regarding the pipeline failure, the flow rate (flow velocity) factor and the hydraulic pressure factor are classified and judged, the cause of this pipeline failure is determined, countermeasure processing is performed accordingly, and the result is stored in the storage means 2. Let

In the first embodiment described above, the flow rate data, the water pressure data, and the vibration data are collected as measurement data,
The flow data is processed to diagnose whether there is a leak in the distribution pipeline network, and if a leakage abnormality is diagnosed, which distribution pipeline in the distribution pipeline network is diagnosed based on the water pressure data. It was decided to identify whether or not there was a leak in the water, and to identify the vicinity of the leak location based on the vibration data of the distribution pipeline that is predicted to have the leak. By collecting and processing at least one of data and vibration data as measurement data, it is possible to specify which water distribution pipeline network or water distribution pipeline has leakage.

For example, in the case of identifying an abnormality in the water distribution pipeline by using the flow rate data, if a flow monitoring device is provided in each water distribution pipeline network and the valve is controlled to be opened and closed by remote control, each water distribution pipeline network is controlled. It is possible to identify which of the water distribution pipeline networks has water leakage. In addition, when the water distribution pipeline is an important trunk line, a flow rate monitoring device is installed from the upstream side to the downstream side at predetermined intervals to collect the flow rate data of the adjacent flow rate monitoring instrument and to collect the flow rate data of the adjacent monitoring instrument. The difference can identify the abnormality of the water distribution pipe and the abnormal portion. Diagnosis of the presence or absence of abnormality in the water distribution pipeline and identification of the abnormal location using only this flow monitoring instrument are particularly effective when the water distribution pipeline is a crossover pipe that crosses the river bottom. This is because, in the case of the bottom of the river, the location of the leak cannot be identified from the vibration data. In this case, a pair of flow rate monitoring instruments may be provided on both sides of the river, and the difference between the flow rate data of the pair of flow rate monitoring instruments may be analyzed.

Next, when the abnormality of the water distribution pipe is specified using the water pressure data, if the water pressure of a certain water distribution pipe is significantly lower than the reference water pressure, Can be diagnosed as abnormal. In this case, if a water pressure monitoring device is installed in the water distribution pipe from the upstream side to the downstream side at predetermined intervals, the vicinity of the abnormal position of the water distribution pipe can be specified.

When the vibration data is used, the vibration data can be processed to identify the abnormal water distribution pipe and the vicinity of the abnormal portion.

14 to 16 are explanatory views for explaining the second embodiment of the water pipe information management device.

The central processing unit 1 makes the two-dimensional coordinates (X, Y) on the drawing of the water distribution network diagram 8 correspond to the gray value I (X, Y) of the aerial photograph as a map, and the two-dimensional coordinates The height data H (X, Y) functions as addition means for giving height data H (X, Y) obtained by adding the terrain elevation data and the building height data corresponding to the coordinates (X, Y). ) Based on the topographical elevation data, the building height data, and the installation position data of the water distribution pipeline, the map topography 37 and the building 38, 38 ', a water distribution base 39, and a water distribution conduit (not shown) may be displayed in a sectional view on the screen 6A as shown in FIG. 15, or as shown in FIG. Building (not shown), water distribution base 39, and water distribution pipeline (not shown) The may be displayed in a three-dimensional perspective. Further, the theoretical water pressure data obtained by the simulation or the water pressure data obtained by the measurement data can be superimposed and displayed on the screen 6A. Figure 15
In the case of (a), the hydrostatic pressure straight line SP and the maximum value curve Pmax of the appropriate water pressure are displayed on the screen 6A. Here, the hydrostatic pressure straight line SP is the distribution base 39 in the case of natural flow.
In the case of pressurization by the pump, it can be obtained by adding the amount of pressurization by the pump to the altitude (converted to water pressure) of the distribution base 39. The maximum value curve Pmax of the appropriate water pressure indicates that the height data H has an appropriate maximum value of the water pressure (for example, 40
m), and the hydrostatic pressure can be regarded as the water supply pressure at the time of minimum demand, so if the maximum value of the appropriate water pressure is exceeded, it can be considered that the water pressure is excessive. In addition, the portion indicated by the reference numeral 40 has excessive water pressure.

In the case shown in FIG. 15B, the screen 6
In A, the dynamic water pressure straight line DP at the time of maximum demand and the minimum value curve Pmin of the appropriate water pressure are displayed. The hydraulic pressure at the time of maximum demand is obtained by subtracting the pressure loss due to the pipeline from the hydrostatic pressure, and this hydraulic pressure becomes lower as it goes from the upstream side to the downstream side of the distribution pipeline. This hydraulic pressure is created based on pipe network simulation or measurement data. When creating from measurement data, the number of data points is limited, so
The hydrodynamic pressure straight line DP is created by the interpolation method. Since the dynamic water pressure at the time of maximum demand is the water supply pressure when the water pressure becomes the lowest, when the dynamic water pressure is smaller than the minimum value of the proper water pressure, it is determined that the water pressure is insufficient. In the case of FIG. 15B, the areas indicated by reference numerals 41 and 42 have insufficient water pressure. As a result, it can be determined that the water pressure is sufficient in the building 38, but the water pressure is insufficient in the building 38 '. In addition, FIG.
In the case shown in (a), the water pressure is excessive in the area indicated by the reference numeral 43, and in the case shown in FIG.
It can be determined that the water pressure is insufficient in the area indicated by 5.

Although height data is obtained using aerial photographs in this embodiment, height data may be obtained using satellite image data, or height data may be obtained using contour lines on a map. May be created.

[0050]

According to the water supply pipeline information management device of the first aspect of the present invention, it is possible to efficiently maintain and manage the distribution pipeline network.

According to the water pipeline information management device of the fifth to eleventh aspects of the present invention, it is possible to efficiently detect and prevent leakage of water in the distribution pipeline network early.

According to the water pipe information management device of the sixth aspect of the present invention, since the flow rate monitoring device can be installed externally without cutting the water distribution pipe, it is simple regardless of the size of the pipe. It is possible to attach a flow rate monitoring device to the water distribution line, and it is effective when it is economical.

According to the water pipe information management apparatus of the twelfth aspect of the present invention, it is possible to maintain and manage the excess or deficiency of the water pressure in consideration of the height.

[Brief description of drawings]

FIG. 1 is a block diagram showing an overall configuration of a water pipe information management device according to the present invention.

FIG. 2 is a diagram showing an example of installation of a flow rate monitoring instrument in a water distribution line.

FIG. 3 is a diagram showing an example of installation of a water pressure monitoring instrument and a vibration monitoring instrument in a water distribution pipeline.

FIG. 4 is a diagram showing an example of a distribution pipeline network diagram database structure.

FIG. 5 is a diagram showing an example of a pipeline facility database structure.

FIG. 6 is a diagram showing an example of a measurement value database structure.

FIG. 7 is an explanatory diagram of a case where time-series data graphed from a water distribution network diagram displayed on the screen is called.

FIG. 8 is an explanatory diagram of a case where a water distribution pipeline network diagram and time series data are called from an instrument ID displayed on the screen.

FIG. 9 is a diagram showing an example of a flow rate change curve when there is no water leakage.

FIG. 10 is a diagram showing an example of a flow rate change curve when there is water leakage.

FIG. 11 is a schematic diagram of a water distribution pipeline for explaining a water leak location.

FIG. 12 is a diagram showing an example of a water pressure change curve with and without water leakage.

FIG. 13 shows an example of vibration distribution in the presence of water leakage,
(A) shows the vibration distribution when it is close to the point of water leakage,
(B) and (c) show the vibration distribution when it is far from the leak point.

FIG. 14 is an explanatory diagram of the water supply pipeline information management device according to claim 12 of the present invention, and is a diagram showing a correspondence relationship between a water distribution pipeline network diagram, a topographic map, and height data.

FIG. 15 is an explanatory diagram of the water pipe information management device according to claim 13 of the present invention, showing a state in which the relationship between a building, a topographic map, and water pressure is cross-sectionally displayed on the screen; ) Is the case of excessive water pressure, and (b) is the case of insufficient water pressure.

FIG. 16 is an explanatory diagram of the water pipe information management device according to claim 14 of the present invention, showing a state where the relationship between the topographic map and the water pressure is displayed on the screen in a perspective view; Shows the case of excessive water pressure, and (b) shows the case of insufficient water pressure.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Central processing unit 3 ... Storage means 4 ... Keyboard (input means) 5 ... Mouse (input means) 6 ... Display device (display means) 6A ... Screen 8 ... Water distribution network 9, 10, 11 ... Water distribution 12 ... Flow rate monitoring instrument 13, 16, 2130, 31 ... Water pressure monitoring instrument 14, 15, 17 to 20, 32, 33, 35 ... Vibration monitoring instrument 23 ... Water distribution pipeline network diagram 36 ... Leakage occurrence location

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Kenichi Takahashi, 12-18-904, Takaza-cho, Nishinomiya-shi, Hyogo Prefecture (72) Shinichiro Miyaoka, 3-1-1, Higashiyurigaoka, Aso-ku, Kawasaki-shi, Kanagawa Sunny House, Yuurigaoka 216

Claims (14)

[Claims] 1. A distribution pipeline network diagram in which distribution pipelines are superimposed on a map and attribute data such as pipe type, pipe diameter, installation year, etc. of the distribution pipes are compiled into a database to maintain the distribution pipeline network. A water conduit information management device for managing, a flow rate of water flowing to a measurement point of the water distribution line, a measurement data collecting unit for measuring at least one of pressure and vibration and collecting it as measurement data, Storage means for storing the measurement data, display means for displaying the measurement data stored in the storage means on a screen in association with the water distribution network diagram, and processing the measurement data stored in the storage means A water pipeline information management device comprising: a processing means; and a pipeline abnormality diagnosing means for diagnosing the presence / absence of abnormality of the water distribution pipeline based on the processed measurement data and for identifying the abnormal location. 2. The measurement data relating to the specified specific water distribution pipeline when the display means specifies a specific water distribution pipeline of the water distribution pipeline network diagram displayed on the screen by the input means. Is displayed, The water supply pipeline information management device according to claim 1. 3. The processing means processes the measurement data and displays the time-series change of the measurement data as a graph or displays the measurement data or compares the measurement data with past measurement data of similar conditions. Or display the measurement data in comparison with the measurement data of a measurement location adjacent to the measurement location of the measurement data, or display the measurement data in comparison with theoretical measurement data obtained by simulation. The water pipe information management device according to claim 1, wherein at least one of the following operations can be performed. 4. The pipeline abnormality diagnosing means identifies a water distribution pipeline in which leakage has occurred based on flow rate data and water pressure data, and identifies a leakage location on the identified water distribution pipeline based on vibration data. The water pipeline information management device according to claim 1, wherein the vicinity is detected. 5. The distribution pipeline network diagram in which the distribution pipelines are superimposed and displayed on the map and the attribute data such as pipe type, pipe diameter and installation year of the distribution pipelines are made into a database, and the distribution pipeline network A water pipe information management device for performing maintenance, a flow monitoring instrument for measuring flow rate of water flowing to a measurement point of the water distribution line to collect flow rate data, and a memory for storing the flow rate data as measurement data. Means, display means for displaying the measurement data stored in the storage means on the screen in association with the water distribution pipeline network diagram, and processing the measurement data stored in the storage means to the water distribution pipeline network. Water pipe information having a leakage occurrence water distribution pipe specifying means for diagnosing whether there is a water leak and for specifying which water distribution pipe in the water distribution pipe network has a water leak Management device. 6. The water pipeline information management device according to claim 5, wherein the flow rate monitoring instrument is an ultrasonic sensor. 7. The distribution pipeline network diagram in which the distribution pipelines are superimposed on the map and the attribute data such as pipe type, pipe diameter and installation year of the distribution pipelines are made into a database, and the distribution pipeline network A water pipe information management device that performs maintenance, a water pressure monitoring instrument that measures the pressure of water flowing at a measurement point of the water distribution pipe to collect water pressure data, and a memory that stores the water pressure data as measurement data. Means, display means for displaying the measurement data stored in the storage means on the screen in association with the water distribution pipeline network diagram, and processing the measurement data stored in the storage means to the water distribution pipeline network. Water pipe information having a leakage occurrence water distribution pipe specifying means for diagnosing whether there is a water leak and for specifying which water distribution pipe in the water distribution pipe network has a water leak Management device. 8. The distribution pipeline network diagram in which the distribution pipelines are superimposed on the map and the attribute data such as pipe type, pipe diameter and installation year of the distribution pipelines are made into a database, and the distribution pipeline network A water pipe information management device for performing maintenance, a vibration monitoring instrument that collects vibration data by measuring vibration caused by water flowing to a measurement point of the water distribution pipe, and stores the vibration data as measurement data. Storage means, display means for displaying the measurement data stored in the storage means on a screen in association with the water distribution pipeline network diagram, and processing the measurement data stored in the storage means to process the water distribution pipeline. A water pipe having a leakage occurrence water distribution pipe specifying means for diagnosing whether there is water leakage in the net and for specifying which water distribution pipe in the water distribution pipe network is leaking Road information management device. 9. A distribution pipeline network diagram in which distribution pipelines are superimposed on a map and attribute data such as pipe type, pipe diameter, installation year, etc. of the distribution pipelines are made into a database, and the distribution pipeline network A water pipe information management device for performing maintenance, a flow rate monitoring instrument for collecting flow rate data by measuring a flow rate of water flowing to a measurement point of the water distribution line, and water flowing to a measurement point of the water distribution line. Water pressure monitoring instrument for measuring the pressure of and collecting water pressure data, storage means for storing the flow rate data and the water pressure data as measurement data, and the measurement data stored in the storage means for the water distribution network diagram A display unit for displaying on the screen in association with, a leakage diagnosis unit for processing the flow rate data stored in the storage unit and diagnosing whether or not there is water leakage in the distribution pipeline network, and the leakage diagnosis unit. Diagnosis result and water pressure day A water supply pipeline information management device having a water leak occurrence distribution pipeline specifying means for specifying which of the water distribution pipelines in the distribution pipeline network is leaking based on the data. 10. A vibration monitoring instrument that collects vibration data by measuring vibrations caused by water flowing to a measurement point of the water distribution pipeline, and a result of identifying the water leakage distribution pipeline by the water leakage generation pipeline specifying means. 10. The water supply pipeline according to claim 9, further comprising: a leakage generation location identifying unit that identifies which location of the identified leakage generation distribution pipeline is leaking based on the vibration data. Information management device. 11. A plurality of the water pressure monitoring instruments and the vibration monitoring instruments are provided in a water distribution pipeline on the downstream side of the flow rate monitoring instrument, and the leak occurrence pipeline identifying means collects the water pressure data of the water pressure monitoring instruments that are close to each other. The leakage occurrence distribution pipeline is identified by comparative analysis, and the leakage occurrence location specifying means is close to the vibration monitoring instrument and the distribution of the vibration data by the vibration monitoring instrument installed in the identified leakage occurrence distribution pipeline. The water pipeline information management device according to claim 10, wherein the water leakage location is specified based on the distribution of the vibration data by the vibration monitoring instrument. 12. A distribution pipeline network diagram in which distribution pipelines are superimposed and displayed on a map, and attribute data such as pipe type, pipe diameter, installation year, etc. of the distribution pipes are made into a database to maintain the distribution pipeline network. A water pipe information management device for managing, wherein at least one height data of the terrain elevation data and the building height data corresponding to the two-dimensional coordinate points on the map is used as the two-dimensional coordinate points. The water supply pipe information management device is provided with a giving means for giving the water pressure, and a water pressure excess / deficiency determining means for determining excess / deficiency of water pressure based on the height data. 13. The topography of the map, the building and the water distribution pipeline are displayed in a sectional view based on the topographical elevation data, the building height data and the installation position data of the water distribution pipeline, and a simulation is also performed. 13. The water pipeline information management device according to claim 12, further comprising display means for displaying the water pressure data obtained by the above or obtained from theoretical water pressure data or measurement data by superimposing it on the cross-sectional view. 14. The three-dimensional perspective view of the topography, building and water distribution line of the map based on the topographical elevation data, the building height data and the installation position data of the water distribution line. The water pipe information management device according to claim 12, further comprising display means for displaying the theoretical water pressure data obtained by the simulation or the water pressure data obtained by the measurement data so as to be superimposed on the three-dimensional perspective view.