JP6113533B2 - Water pipe monitoring device - Google Patents

Description

  The present invention relates to a water pipe monitoring device that monitors the presence or absence of occurrence of water leaks, water hammers, etc. in water pipes, the actual use situation of water, and the like.

  Conventionally, sound pressure detection devices and data recording devices have been installed in many fire hydrants and air valves installed in the middle of water pipes to automatically detect sound pressure for a long time and automatically record data on memory cards. The sound pressure data recorded and recorded on the many memory cards is input to a computer to be processed, analyzed, and stored to monitor the water pipe (see Patent Document 1).

  However, in this method, the operator must go around the installation location of the data recording device, collect the memory card one by one, take time to collect the data, and input the sound pressure data to the computer. It was not possible to know the occurrence of water leakage, water hammer, etc., and the actual usage of water.

  In order to eliminate such inconvenience, a data collection device in which a sound pressure detection device and a data recording device are integrated, and a portable data analysis device, the operator carries the data analysis device while traveling around. A water line monitoring device has been developed that wirelessly transmits sound pressure data from a data collection device to a data analysis device.

  According to the above water pipe monitoring device, it is not necessary to collect memory cards one by one, and the labor of the worker can be greatly reduced. It is possible to immediately check the actual usage situation.

JP-A-6-186126

  In the water pipe monitoring device, sound pressure data can be recorded over a plurality of days in the data collection device, and the data analysis device receives the sound pressure data and displays the numerical value on the display device. In addition, it was confirmed whether water leaks, water hammers, etc. occurred and the actual conditions of water use.

  However, in the data analyzer, the sound pressure data is numerically displayed to check whether or not water leakage has occurred. Judgments vary depending on skill and experience, and judgment errors are likely to occur.

  In addition, in the data analyzer, by confirming the actual usage status of water by displaying the sound pressure data numerically, if the sound pressure data numerically displayed on the display device is not printed on the paper by the output device, Progress information etc. cannot be grasped reliably.

  If the sound pressure data stored in the data analyzer is transferred to a computer by a data transfer code or a memory card, the sound pressure data is processed and analyzed by the computer, and displayed on the display device. Can be confirmed.

  However, if a map of the area where the water pipe is installed is displayed, and the data collection device is placed on the map, and the sound pressure data corresponding to the data collection device is displayed in a list, the presence or absence of leakage etc. And the position cannot be easily confirmed.

  The present invention has been made to solve such problems, and it does not require the skill and experience of an operator to determine whether or not water leakage has occurred, and even without printing on paper. , Water pipes that can easily grasp progress information, etc., can visually confirm sound pressure data corresponding to the data collection device, and can easily check the presence and location of leakage etc. An object is to provide a monitoring device.

In order to achieve the above object, the water pipe monitoring device of the present invention comprises:
A plurality of data collection devices, each including a sound pressure sensor, a central processing unit, a storage device, and an antenna, installed at appropriate locations in a water pipeline;
A portable data analysis device comprising an antenna, a central processing unit, a storage device, and a display device, and capable of wirelessly transmitting and receiving data to and from the data collection device;
A computer comprising a computer main body, an input device, and a display device, and capable of transmitting and receiving data by the data analysis device and a data transfer code or a memory card;
A water line monitoring device comprising:
The data collection device measures and records the sound pressure value at predetermined intervals for several hours in the midnight time zone, extracts and stores the minimum sound pressure value within the measurement time, and sets a plurality of sound levels in stages. The pressure threshold value and the minimum sound pressure value are compared to determine the presence and extent of leakage etc., and the determination result can be stored,
The data analysis device receives sound pressure value data, minimum sound pressure value data and determination results within a measurement time from the plurality of data collection devices, and displays an identification number and a design of each data collection device on the display device screen. Can be displayed, the minimum sound pressure value,
The computer receives sound pressure value data from the data analysis device via a data transfer code or a memory card, processes and analyzes the sound pressure value data, and arranges a water pipe on the screen of the display device. In addition to displaying a map of the area that has been installed, the design of each data collection device is displayed with an identification number on the map, and there are at least four colors on the design, depending on whether or not water leakage has occurred and the result of the determination. A water pipe monitoring device characterized in that it can be visually displayed by being divided into colors.

Instead of adding color, circles may be drawn by dividing into at least four types of diameters based on the presence and extent of leakage etc., centering on the design of each data collection device.

  Alternatively, a circle drawn around the design of each data collection device may be divided into at least four colors depending on whether or not water leakage occurs and may be painted.

  According to the water pipe monitoring device of the present invention, the presence or absence of leakage or the like is determined by the set sound pressure threshold value, and the abnormal level is visually displayed corresponding to the data collection device. It is possible to easily confirm the presence and location of leakage and the like without any judgment on leakage due to experience.

  Further, since the abnormal level is visually displayed by the color or the inner diameter corresponding to the data collection device, it is possible to easily visually grasp the presence and position of occurrence of water leakage or the like.

It is a block diagram of a water pipe monitoring apparatus. It is an external view of a data collection device. It is a circuit block diagram of a data collection device. It is an external view of a data analyzer. It is a circuit block diagram of a data analyzer. It is explanatory drawing which shows the determination flow performed in a data collection device. It is explanatory drawing which shows an example of the screen display of the display apparatus connected to the computer. It is explanatory drawing which shows an example of the screen display of the display apparatus connected to the computer.

  First, the water pipe monitoring device of the present invention will be described with reference to FIGS. 1 to 5.

As shown in FIG. 1, the water pipe monitoring device 1 includes a plurality of data collection devices 2, a data analysis device 3, and a computer 4.
The data collection device 2 and the data analysis device 3 transmit and receive commands and data wirelessly.
On the other hand, the data analyzer 3 and the computer 4 transmit and receive commands and data by a data transfer code or a memory card 5.

As shown in FIGS. 2 and 3, the data collection device 2 includes a sound pressure sensor 21 at the lower end and an antenna 22 and a gripping member 23 at the upper end.
Then, the operator grasps and carries the grasping member 23, and installs the data collection device 2 in the auxiliary equipment V such as a control valve, a fire hydrant, and a meter of the water pipe L as shown in FIG.

Sounds such as running water sound and water leakage sound generated and transmitted in the water pipe L are captured by the sound pressure sensor 21 of the data collection device 2 via the incidental equipment V and detected as sound pressure signals.
The sound pressure signal is subjected to voltage amplification, filtering, digital conversion, and the like, calculated and processed in a central processing unit (MPU) 24, and sequentially stored in the storage device 25 as sound pressure data.
The stored sound pressure data is transmitted from the antenna 22 via the wireless communication module 26.

As shown in FIGS. 4 and 5, the data analysis device 3 has a display device 32 and operation buttons 33 disposed on the surface portion of the housing 31 and an antenna 34 disposed on the upper end portion.

The sound pressure data transmitted from the antenna 22 of the data collection device 2 and received by the antenna 34 is transmitted to the central processing unit (CPU) 36 via the wireless communication module 35 and is calculated by the central processing unit (CPU) 36. It is processed and stored in the storage device 37.
The sound pressure data stored in the storage device 37 is appropriately extracted by a central processing unit (CPU) 36, calculated, processed, and output to the display device 32 as a numerical display, a graph display, a graphic display, or the like. It has become.

  As shown in FIG. 1, the computer 4 has an input device 42 and a display device 43 connected to a computer main body 41.

The data collection device 2 records the sound pressure value at a predetermined interval (1 to 60 seconds) for 2 hours (2 to 4 o'clock) in the midnight time zone when there are few living sounds, and the minimum sound pressure in the measured 2 hours The value is the sound pressure data used for water leakage determination.
The water leakage sound is generated continuously, and there is basically no sudden change in sound volume. The cause of sudden increase in sound may be life sound, operation sound of electrical equipment such as vending machines, etc., but it does not continue to be generated for 2 hours. Therefore, if the minimum sound pressure value is monitored, the magnitude of the sound originally generated from the water pipe line can be known.
If a predetermined threshold value is set based on the volume of the sound that is originally generated, the location showing the minimum sound pressure value that greatly exceeds this threshold value is assumed that some abnormal sound is occurring, and water leakage occurs. It can be determined that it has occurred.

In the data collection device 2, sound pressure values are measured and recorded at predetermined intervals for 2 hours per day. Further, the minimum sound pressure value measured for 2 hours is extracted and stored.
Then, the sound pressure value and the minimum sound pressure value over 2 hours are stored for a plurality of days (maximum 35 days). Here, the storage is continued after the 35th day, but in this case, the old data is deleted, and the latest 35 days of data are always stored.

  Next, an abnormal state determination method such as water leakage executed in the data collection device 2 will be described with reference to a determination flowchart shown in FIG.

The latest sound pressure value data of the most recent day is used as the target data for the abnormal state determination. And
This minimum sound pressure value data is compared with an arbitrarily set sound pressure threshold value (LV1, LV2, LV3: LV1 <LV2 <LV3).

When the minimum sound pressure value data is smaller than LV1, it is determined that there is no abnormality. Next, when the minimum sound pressure value data is smaller than LV2, smaller than LV3, larger than LV3,
It is determined that each of the levels LV1 to 3 is abnormal.

  The determination result is saved in the data collection device 2 and transmitted to the data analysis device 3.

The data analysis device 3 receives sound pressure value data, minimum sound pressure value data, and determination results over a period of two hours from a plurality of data collection devices 2, 2,.
On the display screen of the display device 32, the identification number of each of the data collection devices 2, 2,..., The data reception date and time, the determination result mark that represents the bag, the minimum sound pressure value, and the like are displayed.

In addition, the sound pressure value data of the data collection device 2 can be displayed in various graphs on the display screen of the display device 32.
For example, a graph showing the transition of the minimum sound pressure value, a graph showing the distribution of the sound pressure value in one day, and a graph showing the distribution of the sound pressure value in one day divided into six can be displayed on the screen.

The computer 4 receives sound pressure data from the data analysis device 3 via the data transfer code or the memory card 5.
The received sound pressure data is processed and analyzed, and numerical display, graph display, graphic display, etc. can be performed on the display device 43.

  FIG. 7 displays a map of the area where the water pipes are arranged. On the map, the design of the data collection devices 2, 2,. An identification number is written on the design of.

In FIG. 7, the design of the data collection device 2 with the identification number 99000001 is expressed in black because the minimum sound pressure value data is smaller than LV1 and farthest from the abnormal sound generation point.
The design of the data collection device 2 with the identification number 99000003 is expressed in green because the minimum sound pressure value data is smaller than LV2 and far from the abnormal sound generation point.
The design of the data collection device 2 with the identification number 99000004 is expressed in yellow because the minimum sound pressure value data is smaller than LV3 and relatively close to the abnormal sound generation point.
The design of the data collection device 2 with the identification number 99000005 is represented in red because the minimum sound pressure value data is larger than LV3 and close to the abnormal sound generation point.

  As described above, it is determined whether or not water leakage has occurred based on the set sound pressure threshold value, and if the abnormal level is visually displayed in color corresponding to the data collection device, leakage of water etc. It is possible to easily confirm the presence and location of water leakage and the like without any difference in judgment.

  Further, as shown in FIG. 8, it is also possible to draw a circle with an appropriate inner diameter around the design of the data collection devices 2, 2,... And paint the inside of the circle with appropriate colors.

In FIG. 8, the design of the data collection device 2 with the identification number 99000001 does not draw a circle because the minimum sound pressure value data is smaller than LV1.
In the design of the data collection device 2 with the identification number 99000003, since the minimum sound pressure value data is smaller than LV2, a circle with an inner diameter corresponding to the minimum sound pressure value data is drawn, and the inside of the circle is painted green.
In the design of the data collection device 2 with the identification number 99000004, since the minimum sound pressure value data is smaller than LV3, a circle with an inner diameter corresponding to the minimum sound pressure value data is drawn and the inside of the circle is painted yellow.
In the design of the data collection device 2 with the identification number 99000005, since the minimum sound pressure value data is larger than LV3, a circle with an inner diameter corresponding to the minimum sound pressure value data is drawn, and the inside of the circle is painted red.

  As described above, if the abnormal level is visually indicated by a circle with an appropriate inner diameter corresponding to the data collection device and the inside of the circle is appropriately colored, the presence and position of occurrence of water leakage and the like can be further determined. It can be easily grasped.

  According to the water pipe monitoring device of the present invention, the presence or absence of leakage or the like is determined by the set sound pressure threshold value, and the abnormal level is visually displayed corresponding to the data collection device. It is possible to easily confirm the presence and location of leakage and the like without any judgment on leakage due to experience.

DESCRIPTION OF SYMBOLS 1 Water pipe monitoring equipment 2 Data collection device 21 Sound pressure sensor 22 Antenna 3 Data analysis device 32 Display device 34 Antenna 4 Computer 41 Computer main body 42 Display device 5 Memory card L Water pipeline

Claims (3)

A plurality of data collection devices, each including a sound pressure sensor, a central processing unit, a storage device, and an antenna, installed at appropriate locations in a water pipeline ;
A portable data analysis device comprising an antenna, a central processing unit, a storage device, and a display device, and capable of wirelessly transmitting and receiving data to and from the data collection device ;
A computer comprising a computer main body, an input device, and a display device, and capable of transmitting and receiving data by the data analysis device and a data transfer code or a memory card;
A water line monitoring device comprising:
The data collection device measures and records the sound pressure value at predetermined intervals for several hours in the midnight time zone, extracts and stores the minimum sound pressure value within the measurement time, and sets a plurality of sound levels in stages. The pressure threshold value and the minimum sound pressure value are compared to determine the presence and extent of leakage etc., and the determination result can be stored,
The data analysis device receives sound pressure value data, minimum sound pressure value data and determination results within a measurement time from the plurality of data collection devices, and displays an identification number and a design of each data collection device on the display device screen. Can be displayed, the minimum sound pressure value,
The computer receives sound pressure value data from the data analysis device via a data transfer code or a memory card, processes and analyzes the sound pressure value data, and arranges a water pipe on the screen of the display device. In addition to displaying a map of the area that has been installed, the design of each data collection device is displayed with an identification number on the map, and there are at least four colors on the design, depending on whether or not water leakage has occurred and the result of the determination. A water pipe monitoring device characterized in that it can be visually displayed by being divided into colors . 2. The circle according to claim 1 , wherein instead of adding a color, a circle is drawn with at least four types of diameters centered on the design of each of the data collection devices according to the presence and degree of occurrence of water leakage and the like. Water pipe monitoring device. The circle drawn around the design of each data collection device is divided into at least four colors according to the presence and degree of occurrence of water leakage and the like, and the colors are painted. Water pipe monitoring device.

Images