CN111307238A - Intelligent water meter protection method and system based on flow monitoring - Google Patents
Intelligent water meter protection method and system based on flow monitoring Download PDFInfo
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- CN111307238A CN111307238A CN202010169019.4A CN202010169019A CN111307238A CN 111307238 A CN111307238 A CN 111307238A CN 202010169019 A CN202010169019 A CN 202010169019A CN 111307238 A CN111307238 A CN 111307238A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F15/00—Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
- G01F15/001—Means for regulating or setting the meter for a predetermined quantity
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
- G01M3/28—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds
- G01M3/2807—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds for pipes
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
- G01M3/28—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds
- G01M3/2807—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds for pipes
- G01M3/2815—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds for pipes using pressure measurements
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Measuring Volume Flow (AREA)
Abstract
In order to solve the problem that the IC card water meter can not detect the pipe burst in the prior art, the invention provides an intelligent water meter protection method and system based on flow monitoring, which comprises the following steps: collecting a pressure value and a flow value of a water pipe, and comparing the collected data with a pressure threshold value and a flow threshold value respectively; and when the pressure value in the water pipe is smaller than the pressure threshold and the flow value is larger than the flow threshold, judging that the water meter is burst, closing the pipeline valve and simultaneously sending an alarm prompt. According to the invention, the pressure value of the water pipe and the flow value of the water pipe are simultaneously used as detection conditions, when the pressure value in the water pipe is smaller than the pressure threshold value and the flow value is larger than the flow threshold value, the pipe explosion of the water meter is judged, and then an alarm signal is sent out or the water pipe is closed, so that the loss is reduced. The invention has simple detection mode, high detection speed and high accuracy; meanwhile, the detection system is simple in composition, low in cost and suitable for popularization and use.
Description
Technical Field
The invention belongs to the field of IC card water meter monitoring, and particularly relates to an intelligent water meter protection method and system based on flow monitoring.
Background
The existing IC card water meter utilizes the modern microelectronic technology, the modern sensing technology and the intelligent IC card technology to measure the water consumption and transmit the water consumption data and settle accounts for the transaction, and the basic functions mainly comprise:
(1) the display function comprises ① displaying water purchase amount, ② remaining water amount and ③ used accumulated water amount.
(2) The prompting function comprises ① misoperation, ② insufficient water residual quantity and ③ undervoltage working power supply.
(3) The protection function comprises ① magnetic protection, ② disconnection protection, ③ power supply undervoltage protection;
(4) the control function comprises ① data maintenance and recovery and ② water control.
The existing IC card water meter protection function has the defects that the problem of water pipe bursting existing in winter or caused by the quality problem of a water pipe is not considered, if the water pipe bursts, the balance in the card is completely consumed, and the valve can be closed only because the available water quantity is insufficient.
Therefore, a detection system capable of detecting pipe burst is urgently needed to be developed.
Disclosure of Invention
In order to solve the problem that the IC card water meter in the prior art cannot detect pipe burst, the invention provides an intelligent water meter protection method and system based on flow monitoring, which can effectively solve the problem.
In order to achieve the purpose, the invention adopts the specific scheme that: an intelligent water meter protection method based on flow monitoring is characterized in that: collecting a pressure value and a flow value of a water pipe, and comparing the collected data with a pressure threshold value and a flow threshold value respectively; and when the pressure value in the water pipe is smaller than the pressure threshold and the flow value is larger than the flow threshold, judging that the water meter is burst, closing the pipeline valve and simultaneously sending an alarm prompt.
Specifically, the intelligent water meter protection method based on flow monitoring comprises the following steps:
s1, opening a valve of a to-be-detected end to the maximum, collecting flow data of a water pipe, comparing the flow data with the maximum flow of a water theory, and taking a numerical value which is closest to the maximum flow of the theory in the flow data as a flow threshold of the to-be-detected end;
s2, setting a water pressure threshold value of the end to be detected;
s3, continuously and simultaneously acquiring pressure data and flow data in the water pipe of the end to be detected, and simultaneously and respectively comparing the pressure data with the water pressure threshold and the flow data in the step S2 with the flow threshold in the step S1;
when the pressure data is smaller than the water pressure threshold and the flow data is larger than the flow threshold, judging that the fault occurs, and sending a fault signal;
and S4, alarming according to the fault signal sent out in the step S3.
3. The intelligent water meter protection method based on flow monitoring as claimed in claim 1, wherein:
the method for calculating the theoretical maximum flow in the step S1 is as follows:
S is specific resistance of pipeline
L is the length of the pipeline
n: roughness of pipe
d: inner diameter (m) of the pipe.
An intelligent water meter protection system based on flow monitoring comprises a detection assembly, a main control assembly and an execution assembly;
the main control assembly is electrically connected with the detection assembly and used for acquiring and detecting water pressure and flow data of a to-be-detected end;
the main control assembly is electrically connected with the execution assembly and used for outputting a control signal according to the data acquired by the detection assembly to control the execution assembly to execute corresponding actions.
Has the advantages that: according to the invention, the pressure value of the water pipe and the flow value of the water pipe are simultaneously used as detection conditions, when the pressure value in the water pipe is smaller than the pressure threshold value and the flow value is larger than the flow threshold value, the pipe explosion of the water meter is judged, and then an alarm signal is sent out or the water pipe is closed, so that the loss is reduced. The invention has simple detection mode, high detection speed and high accuracy; meanwhile, the detection system is simple in composition, low in cost and suitable for popularization and use.
Drawings
FIG. 1 is a flow chart of the present invention.
Fig. 2 is a block diagram of the system of the present invention.
Fig. 3 is a circuit diagram of a master control assembly.
Fig. 4 is a circuit diagram of the connection between the pressure sensor and the main control assembly.
FIG. 5 is a circuit diagram of the connection between the base table and the master control assembly.
Fig. 6 is a circuit diagram of an online upgrade port.
FIG. 7 is a partial circuit diagram of an execution block.
FIG. 8 is another circuit diagram of a portion of an execution block.
FIG. 9 is a circuit diagram of a further portion of an execution block.
Fig. 10 is a circuit diagram of the connection between the wireless module and the main control module.
Wherein, the port P7 in FIG. 4 is connected with a pressure sensor; the P6 port in fig. 10 connects wireless communication modules.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
Specific example I: referring to fig. 1, the intelligent water meter protection method based on flow monitoring according to the present invention includes the following steps:
1. a threshold setting process: after the IC card water meter is installed and the valve with the water outlet requirement in the room is installed, the valves at all the water outlet positions are opened to the maximum position, the flow of the water meter is collected for 2 minutes, and the collected data are stored; according to the formula of flow calculation
Calculating theoretical value of pipeline flow, finding out the stored value closest to the theoretical value as threshold value, andthe threshold value is saved as the maximum value of the pipeline flow when the user normally uses the device.
2. And (3) flow comparison process: receiving a flow value sent by a water meter base meter in real time, and comparing the threshold value with the real-time flow to obtain a comparison result;
3. and (3) pressure comparison process: collecting the pressure of a water pipe to be detected, and deducting pressure loss; empirically setting a pressure reference value to 0.1mpa and using that value as a pressure threshold;
4. and (3) judging:
401. if the pressure value in the water pipe is collected at first and is lower than 0.1mpa, the flow comparison process in the step (2) is carried out, if the water flow at the moment does not exceed the flow threshold value, the collected pressure value at the moment is judged to be an interference value, and the value is discarded; and if the interference pressure value lower than 0.1mpa is acquired for a long time, alarming the damage of the pressure sensor.
It is to be understood that: the pressure supply of the pipe network tip is 0.14MPa according to the national standard, so the pressure threshold value is set to be 0.1Mpa, and can be set by self according to the requirement.
402. If the flow value acquired firstly exceeds the threshold value, the pressure comparison process in the step 3 is carried out, if the pressure value is in a reasonable interval, the flow value acquired at the moment is judged to be an interference value, and the interference value is discarded; and if the interference flow value with the flow exceeding the threshold value is acquired for a long time, carrying out damage alarm on the flow sensor.
403. And (3) if the acquired flow value exceeds the threshold value, performing the pressure comparison process in the step (3), if the pressure value at the moment is reduced to a reasonable interval, judging that the pipeline bursts at the moment, closing a pipeline valve by the system for protection, and simultaneously giving an alarm for prompting.
After the water pipe burst problem is solved, the system opens the valve again to collect data after the reset key is pressed for more than 5 seconds.
The invention also relates to an intelligent water meter protection system based on flow monitoring, which corresponds to the intelligent water meter protection method based on flow monitoring.
The intelligent water meter protection system based on flow monitoring, as shown in fig. 2, comprises a detection component 1, a main control component 2 and an execution component 3; the main control assembly 2 is electrically connected with the detection assembly 1 and is used for acquiring water pressure and flow data of a to-be-detected end; the main control component 2 is electrically connected with the execution component 3 and is used for outputting a control signal according to the data acquired by the detection component 1 to control the execution component 3 to execute corresponding actions; wherein, the detection assembly 1 comprises a pressure sensor and a flow sensor; the master assembly 2 may include an internal memory for storing pressure and flow thresholds; the actuating assembly 3 may include an audible and visual alarm module and a valve for acting against a pipe burst.
Specifically, as shown in fig. 3 to 10, the main control component 2 is a single chip microcomputer, and the model thereof is an STC15 chip, which reads the flow data of the base meter through the P2.0-P2.3 ports; then connecting the pressure sensor through P1.0 to acquire data of the pressure sensor; and P3.0 and P3.1 are connected with the online upgrade port.
Wherein, the executive component 3 comprises an air pump and an electromagnetic valve; the P3.5 port of the STC15 chip controls the on-off of the air pump; the ports P2.4 and P2.5 of the chip are respectively used for controlling the deflation and inflation of the electromagnetic valve, so that the valve of the water pipe for pipe explosion is closed through the air pump and the electromagnetic valve, and the resource waste is avoided; moreover, the STC15 chip can be communicated with portable equipment in a wireless transmission mode, so that monitoring is facilitated.
The above description is only an embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily change or replace the present invention within the technical scope of the present invention. Therefore, the protection scope of the present invention is subject to the protection scope of the claims.
Claims (4)
1. An intelligent water meter protection method based on flow monitoring is characterized in that: collecting a pressure value and a flow value of a water pipe, and comparing the collected data with a pressure threshold value and a flow threshold value respectively; and when the pressure value in the water pipe is smaller than the pressure threshold and the flow value is larger than the flow threshold, judging that the water meter is burst, closing the pipeline valve and simultaneously sending an alarm prompt.
2. The intelligent water meter protection method based on flow monitoring as claimed in claim 1, wherein: the method comprises the following steps:
s1, opening a valve of a to-be-detected end to the maximum, collecting flow data of a water pipe, comparing the flow data with the maximum flow of a water theory, and taking a numerical value which is closest to the maximum flow of the theory in the flow data as a flow threshold of the to-be-detected end;
s2, setting a water pressure threshold value of the end to be detected;
s3, continuously and simultaneously acquiring pressure data and flow data in the water pipe of the end to be detected, and simultaneously and respectively comparing the pressure data with the water pressure threshold and the flow data in the step S2 with the flow threshold in the step S1;
when the pressure data is smaller than the water pressure threshold and the flow data is larger than the flow threshold, judging that the fault occurs, and sending a fault signal;
and S4, alarming according to the fault signal sent out in the step S3.
3. The intelligent water meter protection method based on flow monitoring as claimed in claim 1, wherein:
the method for calculating the theoretical maximum flow in the step S1 is as follows:
h water head difference (m) at two ends of pipeline
S is specific resistance of pipeline
L is the length of the pipeline
n: roughness of pipe
d: inner diameter (m) of the pipe.
4. The utility model provides an intelligence water gauge protection system based on flow monitoring which characterized in that: comprises a detection component (1), a main control component (2) and an execution component (3);
the main control assembly (2) is electrically connected with the detection assembly (1) and is used for acquiring and detecting water pressure and flow data of a to-be-detected end;
the main control assembly (2) is electrically connected with the execution assembly (3) and is used for outputting a control signal according to the data acquired by the detection assembly (1) to control the execution assembly (3) to execute corresponding actions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010169019.4A CN111307238A (en) | 2020-03-12 | 2020-03-12 | Intelligent water meter protection method and system based on flow monitoring |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010169019.4A CN111307238A (en) | 2020-03-12 | 2020-03-12 | Intelligent water meter protection method and system based on flow monitoring |
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| CN111307238A true CN111307238A (en) | 2020-06-19 |
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| CN202010169019.4A Pending CN111307238A (en) | 2020-03-12 | 2020-03-12 | Intelligent water meter protection method and system based on flow monitoring |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1322914A (en) * | 2001-05-25 | 2001-11-21 | 中国石化胜利油田有限公司胜利采油厂 | Petroleum pipeline leakage warning and leaking point positioning system |
| CN205581660U (en) * | 2016-03-31 | 2016-09-14 | 郜红兵 | Monitoring of water pipe flow and safe management and control system |
| CN108916663A (en) * | 2018-09-08 | 2018-11-30 | 北京逸智联科技有限公司 | A kind of municipal network water supply monitoring system and monitoring method |
-
2020
- 2020-03-12 CN CN202010169019.4A patent/CN111307238A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1322914A (en) * | 2001-05-25 | 2001-11-21 | 中国石化胜利油田有限公司胜利采油厂 | Petroleum pipeline leakage warning and leaking point positioning system |
| CN205581660U (en) * | 2016-03-31 | 2016-09-14 | 郜红兵 | Monitoring of water pipe flow and safe management and control system |
| CN108916663A (en) * | 2018-09-08 | 2018-11-30 | 北京逸智联科技有限公司 | A kind of municipal network water supply monitoring system and monitoring method |
Non-Patent Citations (1)
| Title |
|---|
| 者建伦: "《工程水力学》", 30 September 2009 * |
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Application publication date: 20200619 |