CN114689252A - Water leakage detection method and intelligent water meter - Google Patents
Water leakage detection method and intelligent water meter Download PDFInfo
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- CN114689252A CN114689252A CN202011619094.2A CN202011619094A CN114689252A CN 114689252 A CN114689252 A CN 114689252A CN 202011619094 A CN202011619094 A CN 202011619094A CN 114689252 A CN114689252 A CN 114689252A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 380
- 238000001514 detection method Methods 0.000 title claims abstract description 104
- 238000000034 method Methods 0.000 claims abstract description 21
- 230000001684 chronic effect Effects 0.000 abstract description 5
- 238000012544 monitoring process Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000001186 cumulative effect Effects 0.000 description 3
- 238000011895 specific detection Methods 0.000 description 2
- 230000001052 transient effect Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 230000000737 periodic effect Effects 0.000 description 1
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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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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D5/00—Protection or supervision of installations
- F17D5/02—Preventing, monitoring, or locating loss
- F17D5/06—Preventing, monitoring, or locating loss using electric or acoustic means
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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
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Abstract
The invention discloses a water leakage detection method and an intelligent water meter, wherein the method comprises the following steps: the intelligent water meter detects the water flow within a first set time length, and closes the water inlet valve when the water flow is continuously greater than zero and less than a suspected micro-leakage threshold value; the intelligent water meter detects the accumulated pressure drop of the water pressure within a second set time; and when the accumulated pressure drop is greater than the limit value, giving out a micro-leakage alarm. The invention combines the judgment of the water flow in the first set time and the judgment of the accumulated pressure drop of the water pressure in the second set time to monitor the condition of slow water leakage or micro water leakage in the house, and solves the technical problem that the existing indoor waterway can not monitor the chronic water leakage or micro water leakage phenomenon.
Description
Technical Field
The invention belongs to the technical field of intelligent home furnishing, and particularly relates to a water leakage detection method and an intelligent water meter.
Background
Along with the increase of operating mode and people's demand, the water gauge not only is the single instrument of measurement water consumption, but can let it possess the intelligent function that the pertinence is stronger according to use occasion or demand, for example detect temperature, quality of water, water pressure, water flow etc..
Wherein, it can reflect user's water consumption to acquire water flow, simultaneously, can also learn whether user's water system has the phenomenon of leaking based on the monitoring to discharge to alright send the warning suggestion in order to indicate, help safe water and using water wisely.
However, in the existing methods for detecting water leakage by monitoring flow through a water meter, water leakage is mostly monitored by judging single-use flow or continuous water making time, for example, an upper limit value is preset for water consumption or water using time per unit time in a user's home, and when the water consumption or the water using time per unit time exceeds the upper limit value by monitoring and judging water flow, an alarm is given out.
Disclosure of Invention
The invention aims to provide a water leakage detection method and an intelligent water meter, which are used for monitoring the condition of slow water leakage or micro water leakage in a home by combining the judgment of water flow in a first set time and the judgment of accumulated pressure drop of water pressure in a second set time, and solve the technical problem that the conventional indoor water channel cannot monitor the chronic water leakage or micro water leakage phenomenon.
The invention is realized by adopting the following technical scheme:
a water leakage detection method is provided, which comprises the following steps: the intelligent water meter detects the water flow within a first set time length; closing the water inlet valve when the water flow is continuously larger than zero and smaller than the suspected micro-leakage threshold value; the intelligent water meter detects the accumulated pressure drop of the water pressure within a second set time; and when the accumulated pressure drop is greater than the limit value, giving out a micro-leakage alarm.
Further, after closing the water inlet valve, the method further comprises: the intelligent water meter detects the instantaneous pressure drop of the water pressure when the water inlet valve is closed; when the instantaneous pressure drop is greater than or equal to the set water pressure, the water inlet valve is opened again; and when the instantaneous pressure drop is smaller than the set water pressure, detecting the accumulated pressure drop of the water pressure within the set time.
Further, the method is started within a set time period.
Further, the method is performed periodically at set time intervals.
Further, when the accumulated pressure drop is larger than the limit value, the method further comprises the following steps: detecting detection information of a distributed water leakage detection sensor; judging the suspected micro-water leakage position based on the detection information; then, a micro-water leakage alarm is sent out, specifically: and adding a suspected micro-water leakage position in the water leakage alarm information.
An intelligent water meter is provided, which comprises: the micro-flow detection module is used for detecting water flow within a first set time length; the judging module is used for judging whether the water flow is continuously larger than zero and smaller than a suspected micro-leakage threshold value; the micro-water leakage control module is used for controlling the water inlet valve to be closed when the judging module judges that the water flow is continuously larger than zero and smaller than the suspected micro-water leakage threshold value; the accumulated pressure drop detection module is used for detecting the accumulated pressure drop of the water pressure within a second set time length after the water inlet valve is closed; and the alarm module is used for giving out a micro-leakage alarm when the accumulated pressure drop is larger than a limit value.
Further, the intelligent water meter further comprises: the instantaneous pressure drop detection module is used for detecting the instantaneous pressure drop of the water pressure after the water inlet valve is closed; the micro water leakage control module is also used for re-opening the water inlet valve when the instantaneous pressure drop is greater than or equal to the set water pressure.
Further, the intelligent water meter further comprises: and the time control module is used for starting the micro-flow detection module, the judgment module, the micro-water leakage control module, the accumulated pressure drop detection module and the alarm module within a set time period.
Further, the intelligent water meter further comprises: and the period control module is used for periodically starting the micro-flow detection module, the judgment module, the micro-water leakage control module, the accumulated pressure drop detection module and the alarm module according to a set time interval.
Further, the intelligent water meter further comprises: the wireless module is used for being interconnected with the distributed water leakage detection sensor and receiving detection information of the distributed water leakage detection sensor; the suspected water leakage position judging module is used for judging a suspected micro water leakage position based on the detection information; the alarm module is further configured to add a suspected micro-water leakage position in the water leakage alarm information.
Compared with the prior art, the invention has the advantages and positive effects that: the invention provides a water leakage detection method and an intelligent water meter, wherein the intelligent water meter detects the water flow in a set time, when the water flow in a first set time is continuously larger than zero and smaller than a suspected micro-leakage threshold value, the suspected micro-leakage condition of an indoor water path is preliminarily judged, in order to avoid the continuous occurrence of the micro-leakage condition, a water inlet valve of the intelligent water meter is firstly controlled to be closed, then the suspected micro-leakage condition is further judged for the second time to avoid the occurrence of misjudgment, the accumulated pressure drop of the water pressure in the second set time is detected, if the micro-leakage phenomenon exists in the indoor water path, the water pressure of the intelligent water meter can be slowly and continuously reduced in an accumulated time, the method judges the micro-leakage phenomenon to be generated by detecting the numerical value of the accumulated pressure drop in the second set time, if the accumulated pressure drop is larger than a set limit value, the water leakage alarm is sent out, if the accumulated pressure drop in the second set time is in a normal range, opening the water inlet valve and finishing the micro water leakage detection; the invention combines the judgment of the water flow in the first set time and the judgment of the accumulated pressure drop of the water pressure in the second set time to monitor the condition of slow water leakage or micro water leakage in the house, and solves the technical problem that the existing indoor water channel can not monitor the chronic water leakage or micro water leakage phenomenon.
Further, after the water inlet valve is closed under the condition that the water flow is continuously larger than zero and smaller than the suspected micro-leakage threshold value within the first set time, detecting the instantaneous water pressure when the water inlet valve is closed, if the instantaneous water pressure is larger than the set water pressure, judging that the user uses water at a small flow rate, restarting the water inlet valve to ensure that the user uses water normally, and if the instantaneous water pressure is smaller than the set water pressure, further judging the accumulated pressure drop.
Furthermore, the micro-leakage detection device provided by the invention is executed in a set time period and/or periodically at set time intervals, for example, the micro-leakage detection device is periodically executed during non-user water consumption at night, so that the influence on normal water consumption of a user is avoided.
Furthermore, the method and the device provided by the invention are combined with the detection information of the distributed water leakage sensor, when the micro water leakage phenomenon occurs, the position suspected of generating the micro water leakage is judged, and the suspected micro water leakage position is added into the alarm information, so that a user is assisted to position the micro water leakage position as soon as possible.
Other features and advantages of the present invention will become more apparent from the detailed description of the embodiments of the present invention when taken in conjunction with the accompanying drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention, are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention without limiting the invention to its proper form. It is obvious that the drawings in the following description are only some embodiments, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.
FIG. 1 is a flow chart of a method for detecting water leakage according to the present invention;
FIG. 2 is a system architecture diagram of the water leakage detection system according to the present invention;
FIG. 3 is a flowchart illustrating a water leakage detection method according to an embodiment of the present invention;
FIG. 4 is a diagram of a waterway structure of the system for detecting micro-leakage of an intelligent water meter according to a second embodiment of the present invention;
fig. 5 is a flowchart illustrating a water leakage detection method according to a second embodiment of the present invention;
fig. 6 is a flowchart illustrating a water leakage detection method according to a third embodiment of the present invention;
fig. 7 is a flowchart illustrating a water leakage detection method according to a fourth embodiment of the present invention;
fig. 8 is a functional architecture diagram of an intelligent water meter according to the present invention;
fig. 9 is a system architecture diagram of an intelligent water meter implementing the micro-leakage detection system according to the present invention.
It should be noted that the drawings and the description are not intended to limit the scope of the inventive concept in any way, but to illustrate it by a person skilled in the art with reference to specific embodiments.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and the following embodiments are used for illustrating the present invention and are not intended to limit the scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; either directly or via an intermediary profile. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
The water leakage detection method provided by the invention is applied to a water system as shown in figure 2, wherein the water system comprises an indoor waterway 1, a plurality of water utilization devices 2 and an intelligent water meter 3; the intelligent water meter 3 is arranged at the source of the indoor waterway 1 and used for monitoring water flow; a plurality of water consumption equipment 2 all connect on indoor water route 1, and the water use condition of each water consumption equipment 2 is all monitored by intelligent water gauge 3.
The water consuming device 2 is any device that involves the use of water, such as a water purifier, water heater, dishwasher, washing machine, etc.
Based on the above, the water leakage detection method provided by the present invention, as shown in fig. 1, includes the following steps:
step S11: the intelligent water meter detects water flow within a first set time period.
The intelligent water meter 3 monitors the flow and/or the flow speed of water in the indoor waterway 1, and can record the flow and/or the flow speed in a certain period through the storage module. The intelligent water meter 3 may also include a display module that displays the monitored flow and/or flow rate.
In the embodiment of the present invention, as shown in fig. 9, the intelligent water meter 3 may further be interconnected with the cloud service platform 4 through an interconnection module, and may send the flow and/or flow rate information and the water leakage alarm to the user terminal 5 interconnected with the cloud service, and the like.
The first set time period is, for example, 10 minutes, and may be set according to an actual indoor water path condition, the user may use the user terminal 5 to set the first set time period, and if not, a default value is adopted, and the default value is set according to the detection capability of the intelligent water meter, the average water usage condition of the user, the indoor water path condition with a large probability, and the like.
Step S12: and closing the water inlet valve when the water flow is continuously larger than zero and smaller than the suspected micro-water leakage threshold value.
If the water flow is continuously greater than zero and less than the suspected micro-leakage threshold value within the first set time length, the water leakage risk is judged, the water inlet valve is closed firstly, so that the next detection is carried out, and the continuous occurrence of the micro-leakage is avoided.
And if the water flow is continuously larger than zero and is larger than or equal to the suspected micro-flow water threshold value, judging that the user uses water at a small flow.
The suspected micro-leakage threshold value is set according to the actual application condition and/or the statistical value, and can also be set through the user terminal 5.
Step S13: the intelligent water meter detects the accumulated pressure drop of the water pressure within the second set time length.
And in a second set time after the water inlet valve is closed, the intelligent water meter continuously acquires water pressure data detected by a water pressure sensor of the intelligent water meter, the accumulated change of the water pressure is calculated according to the continuously detected water pressure data, if the micro water leakage phenomenon does not exist, the water pressure is kept unchanged theoretically, the accumulated change of the water pressure in the second set time is averagely zero, and if the micro water leakage phenomenon exists, the water pressure continuously and slowly drops in the second set time, and an accumulated pressure drop value is calculated.
Step S14: and when the accumulated pressure drop is larger than the limit value, sending out a water leakage alarm.
Setting a limit value, judging that the indoor water channel has micro water leakage when the accumulated pressure drop is larger than the limit value, and discharging the micro water leakage if the accumulated pressure drop is smaller than the limit value, and restarting the water inlet valve by the intelligent water meter to avoid influencing the normal water consumption of a user in the later period.
The water leakage alarm can be a buzzing alarm, and micro water leakage, large-flow water leakage and the like can be distinguished according to a buzzing mode; may be to push alarm information to the user terminal 5; the alarm mark can be displayed on the display module of the intelligent water meter.
The invention provides a water leakage detection method, wherein an intelligent water meter detects water flow in a set time length, when the water flow in a first set time length is continuously larger than zero and smaller than a suspected micro-leakage threshold value, primarily judges that a micro-leakage condition is suspected to occur in an indoor water path, firstly controls a water inlet valve of the intelligent water meter to be closed to avoid the continuous occurrence of the micro-leakage condition, then further carries out secondary judgment on the suspected micro-leakage condition to avoid error judgment, detects the accumulated pressure drop of water pressure in a second set time length, if the micro-leakage phenomenon exists in the indoor water path, the water pressure of the intelligent water meter is slowly and continuously reduced in an accumulated time length, the method judges that the micro-leakage phenomenon occurs by detecting the value of the accumulated pressure drop in the second set time length, if the accumulated pressure drop is larger than a set limit value, sends out a water leakage alarm, and if the accumulated pressure drop in the second set time length is in a normal range, opening the water inlet valve and finishing the micro water leakage detection; the invention combines the judgment of the water flow in the first set time and the judgment of the accumulated pressure drop of the water pressure in the second set time to monitor the condition of slow water leakage or micro water leakage in the house, and solves the technical problem that the existing indoor water channel can not monitor the chronic water leakage or micro water leakage phenomenon.
The above-mentioned water leakage detection method of the present invention is described in detail by using several specific embodiments.
Example one
As shown in fig. 3, the present embodiment is implemented as follows:
1. and the user sends a micro-water leakage detection instruction to the intelligent water meter through the user terminal.
2. The intelligent water meter detects water flow within 10 minutes.
3. And judging whether the water flow in 10 minutes is continuously larger than zero and smaller than a suspected micro-leakage threshold Q0. If not, then
4. And (5) feeding back that no water leakage condition exists to the user terminal, if so, preliminarily judging that a micro water leakage condition possibly exists, and entering the step 5.
5. The water inlet valve is closed.
On one hand, the situation of micro water leakage is avoided from continuously occurring, and on the other hand, the secondary judgment is continuously executed, so that the judgment error is avoided.
6. The intelligent water meter detects whether the instantaneous pressure drop of the water pressure is less than the set water pressure P0 when the water inlet valve is closed.
If the instantaneous pressure drop is greater than or equal to the set water pressure P0, judging that no micro water leakage exists, and entering step 8; if the instantaneous pressure drop is less than the set water pressure P0, the process goes to step 7.
7. It is checked whether the cumulative pressure drop of the water pressure over the 5 minutes is greater than a limit P1.
If the average cumulative change is less than the limit P1, the process proceeds to step 8, and if the pressure drop of the cumulative change is greater than the limit P1, the process proceeds to step 9.
8. The water inlet valve is opened.
The problem that subsequent users cannot normally use water is avoided.
9. The intelligent water meter sends micro-leakage alarm information in a buzzing mode.
Example two
The present embodiment is implemented on the basis of the first embodiment.
In this embodiment, the system is implemented according to the micro-water leakage detection system shown in fig. 4, and the system includes an indoor waterway 1, an intelligent water meter 3, a plurality of water consumption devices 2, and a plurality of distributed water leakage detection sensors 4, where the distributed water leakage detection sensors 4 are installed in the waterways of the water consumption devices 2 in a distributed manner, and are used for detecting the water leakage condition of the water consumption devices 2, and are interconnected with the intelligent water meter 3 through a wireless module, and after encountering water, the circuit is turned on, and reports water leakage detection information to the intelligent water meter 3 based on the wireless module.
Based on this system, this embodiment, on the basis of the first embodiment, as shown in fig. 5, after step 8, performs the following steps:
9. and detecting the detection information of the distributed water leakage detection sensor.
After the intelligent water meter starts micro water leakage detection, detection information is received from all the distributed water leakage detection sensors in real time, or the detection information stored according to other steps or control is inquired from the system.
10. And judging the suspected water leakage position based on the detection information.
If a certain water device or water channel has a micro-water leakage or chronic water leakage, the detection information reported by the distributed water leakage detection sensor installed on the corresponding water channel can reflect the water leakage, and the position where water leakage occurs can be inferred to be the water channel installed on the water device or the water device hung on the installed water channel according to the distributed water leakage detection sensor corresponding to the abnormal detection signal.
11. And adding the suspected micro-leakage water position into the water leakage alarm information.
12. And the intelligent water meter sends a micro water leakage alarm containing the suspected micro water leakage position to the user terminal.
EXAMPLE III
In this embodiment, the method of detecting the micro water leakage is started according to a set time period, so as to ensure normal water consumption of the user, specifically, as shown in fig. 6:
1. the user sets the specific implementation time period for starting the micro-water leakage detection of the intelligent water meter through the user terminal.
For example, the user sets 3 am as the micro-water leakage detection time period through the user terminal APP.
2. And the intelligent water meter receives and stores the setting of the user terminal.
3. The intelligent water meter judges time based on network connection or self timing equipment and starts micro-water leakage detection at 3 points in the morning.
The specific detection process of micro water leakage can refer to the first embodiment or the second embodiment.
4. And sending water leakage alarm information to the user terminal after the micro water leakage detection is finished.
Example four
In this embodiment, the method of periodically starting the micro-leakage detection at a set time interval ensures normal water usage of the user while avoiding the user forgetting the micro-leakage detection, as shown in fig. 7:
1. the user sets the specific implementation time period and the implementation period for starting the micro-water leakage detection of the intelligent water meter through the user terminal.
For example, the user sets 3 am as a micro water leakage detection time period through the user terminal APP, and sets detection once every 7 days.
2. And the intelligent water meter receives and stores the setting of the user terminal.
3. The intelligent water meter judges time based on network connection or self timing equipment and starts micro water leakage detection at 3 points in the morning.
The specific detection process of micro water leakage can refer to the first embodiment or the second embodiment.
4. And sending water leakage alarm information to the user terminal after the micro water leakage detection is finished.
5. And (4) after the time interval is set, restarting the micro-water leakage detection, and repeating the steps 1 to 4.
At 3 am seven days later, the micro water leak test was again started.
Based on the water leakage detection method, the invention correspondingly provides an intelligent water meter for executing the water leakage detection method, as shown in fig. 8, which is applied to the micro water leakage detection system shown in fig. 9, and the intelligent water meter comprises a micro flow detection module 81, a judgment module 82, a micro water leakage control module 83, an accumulated pressure drop detection module 84 and an alarm module 85.
The micro-flow detection module 81 is used for detecting the water flow within a first set time length; the judging module 82 is used for judging whether the water flow is continuously larger than zero and smaller than a suspected micro-leakage threshold value; the micro-water leakage control module 83 is used for controlling the water inlet valve 80 to be closed when the judging module 82 judges that the water flow is continuously larger than zero and smaller than the suspected micro-water leakage threshold value; the accumulated pressure drop detection module 84 is used for detecting the accumulated pressure drop of the water pressure within a second set time length after the water inlet valve is closed; the alarm module 85 is used for giving a micro-leakage alarm when the accumulated pressure drop is larger than a limit value.
In some embodiments of the present invention, the intelligent water meter further comprises an instantaneous pressure drop detection module 86 for detecting an instantaneous pressure drop of the water pressure after the water inlet valve 80 is closed; the micro-leak control module 83 is also configured to reopen the inlet valve 80 when the instantaneous pressure drop is greater than or equal to the set water pressure.
In some embodiments of the present invention, the intelligent water meter further includes a time control module 87, configured to start the micro-flow detection module 81, the judgment module 82, the micro-water leakage control module 83, the accumulated pressure drop detection module 84, and the alarm module 85 in a set time period; and a transient pressure drop detection module 86.
In some embodiments of the present invention, the intelligent water meter further includes a periodic control module 88, configured to periodically start the micro-flow detection module 81, the determination module 82, the micro-leakage control module 83, the accumulated pressure drop detection module 84, and the alarm module 85 according to a set time interval; and a transient pressure drop detection module 86.
In some embodiments of the present invention, the intelligent water meter further includes a wireless module 89 and a suspected water leakage position determining module 90; the wireless module 89 is used for interconnecting with the distributed water leakage detection sensor 91 and receiving the detection information of the distributed water leakage detection sensor 91; the distributed water leakage detection sensor 91 is arranged on an indoor water path or a water path of water using equipment according to actual application; the suspected water leakage position judging module 90 is configured to judge a suspected micro water leakage position based on the detection information; the alarm module 85 is further configured to add a suspected micro-water leakage position in the water leakage alarm information.
It should be noted that the above description is not intended to limit the present invention, and the present invention is not limited to the above examples, and those skilled in the art should also make changes, modifications, additions or substitutions within the spirit and scope of the present invention.
Claims (10)
1. A water leakage detection method is characterized by comprising the following steps:
the intelligent water meter detects the water flow within a first set time length;
closing the water inlet valve when the water flow is continuously larger than zero and smaller than the suspected micro-leakage threshold value;
the intelligent water meter detects the accumulated pressure drop of the water pressure within a second set time;
and when the accumulated pressure drop is greater than the limit value, giving out a micro-leakage alarm.
2. The water leak detection method according to claim 1, wherein after closing the water inlet valve, the method further comprises:
the intelligent water meter detects the instantaneous pressure drop of the water pressure when the water inlet valve is closed;
when the instantaneous pressure drop is greater than or equal to the set water pressure, the water inlet valve is opened again;
and when the instantaneous pressure drop is smaller than the set water pressure, detecting the accumulated pressure drop of the water pressure in the set time length.
3. The water leak detection method according to claim 1, wherein the method is started within a set period of time.
4. The water leak detection method according to claim 1, wherein said method is periodically executed at set time intervals.
5. The water leak detection method according to claim 1, wherein when the accumulated pressure drop is greater than a limit value, the method further comprises:
detecting detection information of the distributed water leakage detection sensor;
judging the suspected micro-water leakage position based on the detection information;
then, a micro-water leakage alarm is sent out, specifically:
and adding a suspected micro-water leakage position in the water leakage alarm information.
6. An intelligent water meter, comprising:
the micro-flow detection module is used for detecting water flow within a first set time length;
the judging module is used for judging whether the water flow is continuously larger than zero and smaller than a suspected micro-leakage threshold value;
the micro-water leakage control module is used for controlling the water inlet valve to be closed when the judging module judges that the water flow is continuously larger than zero and smaller than the suspected micro-water leakage threshold value;
the accumulated pressure drop detection module is used for detecting the accumulated pressure drop of the water pressure within a second set time length after the water inlet valve is closed;
and the alarm module is used for giving out a micro-leakage alarm when the accumulated pressure drop is larger than a limit value.
7. An intelligent water meter as set forth in claim 6, further comprising:
the instantaneous pressure drop detection module is used for detecting the instantaneous pressure drop of the water pressure after the water inlet valve is closed;
the micro water leakage control module is also used for re-opening the water inlet valve when the instantaneous pressure drop is greater than or equal to the set water pressure.
8. An intelligent water meter as set forth in claim 6, further comprising:
and the time control module is used for starting the micro-flow detection module, the judgment module, the micro-water leakage control module, the accumulated pressure drop detection module and the alarm module within a set time period.
9. An intelligent water meter as set forth in claim 6, further comprising:
and the period control module is used for periodically starting the micro-flow detection module, the judgment module, the micro-water leakage control module, the accumulated pressure drop detection module and the alarm module according to a set time interval.
10. An intelligent water meter as set forth in claim 6, further comprising:
the wireless module is used for being interconnected with the distributed water leakage detection sensor and receiving detection information of the distributed water leakage detection sensor;
the suspected water leakage position judging module is used for judging a suspected micro water leakage position based on the detection information;
the alarm module is further configured to add a suspected micro-water leakage position in the water leakage alarm information.
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| CN202011619094.2A CN114689252A (en) | 2020-12-31 | 2020-12-31 | Water leakage detection method and intelligent water meter |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116380363A (en) * | 2023-03-29 | 2023-07-04 | 宁夏隆基宁光仪表股份有限公司 | Water leakage detection method and water meter |
| CN116734969A (en) * | 2023-06-16 | 2023-09-12 | 深圳乐租宝科技有限公司 | Intelligent anomaly monitoring method for water meter metering data |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116380363A (en) * | 2023-03-29 | 2023-07-04 | 宁夏隆基宁光仪表股份有限公司 | Water leakage detection method and water meter |
| CN116734969A (en) * | 2023-06-16 | 2023-09-12 | 深圳乐租宝科技有限公司 | Intelligent anomaly monitoring method for water meter metering data |
| CN116734969B (en) * | 2023-06-16 | 2024-02-20 | 深圳乐租宝科技有限公司 | Intelligent anomaly monitoring method for water meter metering data |
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