Water leakage detection method and system

Abstract

The present invention discloses a water leakage detection method and system. The system consists of an indoor waterway, an intelligent water meter hung at the source of the indoor waterway, and a plurality of water-using devices hung on the indoor waterway. The intelligent water meter monitors water flow and receives status information and water use information sent by the water-using devices. When it is determined that a water-using device is started, the water leakage condition is determined based on the water use information of the started water-using device and the monitored water flow. When it is determined based on the status information that all water-using devices are stopped, the water leakage condition is determined based on the monitored water flow. During the start-up of the water-using devices, the present invention determines the water leakage condition based on the water use information of the started water-using devices and the monitored water flow, so that the judgment and identification of the water leakage condition during the water use period are more accurate and timely. During the stop of all water-using devices, the water leakage condition is determined based on the monitoring of the water flow, so as to avoid the failure to timely discover chronic water leakage, and solve the problem of insufficient accuracy and false alarm of water leakage monitoring by the intelligent water meter.

Description

Technical Field

[0001] The present invention belongs to the technical field of smart home, and in particular, relates to a water leakage detection method and system. Background Art

[0002] With the increase in working conditions and people's needs, water meters are no longer just a single tool for measuring water consumption, but can be equipped with more targeted intelligent functions according to the usage occasions or needs, such as detecting water temperature, water quality, water pressure, water flow rate, etc.

[0003] Among them, obtaining water flow can reflect the user's water consumption. At the same time, based on the monitoring of water flow, it can also be known whether there is a water leakage in the user's water system, so that an alarm can be issued, which is conducive to safe water use and water conservation.

[0004] However, in the existing methods of detecting water leakage by monitoring flow through water meters, most of them monitor water leakage by judging the single-use flow or continuous water production time. For example, an upper limit value is preset for the water consumption per unit time or the water use time in the user's home. When the water consumption per unit time exceeds the upper limit value or the water use time exceeds the upper limit value through monitoring the water flow, an alarm is issued. Although this method of judging water use can avoid serious losses to a certain extent, there are problems of false alarms or water leakage occurring after a certain period of time. It is still impossible to monitor the occurrence of water leakage in the first time, especially for the situation of slow water leakage in the home, these existing detection methods are even more unable to achieve monitoring. Summary of the invention

[0005] The purpose of the present invention is to provide a water leakage detection method and system, which interconnects all water-using devices in the home with a smart water meter. When any water-using device starts or stops using water, it sends its own status information to the smart water meter, so that the smart water meter can accurately and timely monitor the occurrence of water leakage based on the status of the water-using device, water usage information and water flow in real time, thereby solving the technical problems of existing smart water meters that cannot monitor water leakage in a timely manner, are not accurate enough and have false alarms.

[0006] The present invention is implemented by the following technical solutions:

[0007] A water leakage detection method is proposed, comprising: a smart water meter monitoring water flow; and the smart water meter receiving status information and water use information sent by water-using equipment; the status information includes water-using equipment startup or water-using equipment stop; when the smart water meter determines based on the status information that water-using equipment is started, the water leakage condition is determined based on the water use information of the started water-using equipment and the monitored water flow; when the smart water meter determines based on the status information that all water-using equipment is stopped, the water leakage condition is determined based on the monitored water flow.

[0008] Furthermore, the water usage information includes self-tested water consumption; the water leakage condition is judged based on the water usage information of the activated water-using equipment and the monitored water flow, specifically including: the smart water meter calculates the total water consumption according to the monitored water flow; and, calculates the total self-tested water consumption of all the activated water-using equipment; compares the difference between the total water consumption and the total self-tested water consumption, and judges the water leakage condition based on the water consumption difference.

[0009] Furthermore, the water use information includes a maximum single water use duration, and the method also includes: setting a maximum single water use duration for each water-using device; the smart water meter determines the actual water use duration of the activated water-using device based on the status information; when the actual water use duration of any water-using device exceeds its maximum single water use duration, a water leakage alarm is issued.

[0010] Furthermore, the water use information includes a single maximum water consumption, and the method also includes: setting a single maximum water consumption for each water-using device; the smart water meter monitors the self-tested water consumption of each activated water-using device; when the self-tested water consumption of any water-using device exceeds its single maximum water consumption, a water leakage alarm is issued.

[0011] Furthermore, when a water leakage condition is determined based on the water usage information of the activated water-using equipment and the monitored water flow, the method also includes: determining the water leakage condition; when the water leakage condition is higher than the tolerance limit, closing the water inlet valve; when the water leakage condition is lower than the tolerance limit, determining a suspected leaking device based on the water usage information, and issuing a water leakage alarm message; and, after all water-using equipment has stopped, determining the water leakage condition within a set time period based on the monitored water flow, and closing the water inlet valve when the set water volume is exceeded; wherein the water leakage alarm message includes an identifier of the suspected leaking device.

[0012] A water leakage detection system is proposed, comprising: an indoor water circuit; an intelligent water meter installed at the source of the indoor water circuit and used for monitoring water flow; a plurality of water-using devices, all connected to the indoor water circuit; the intelligent water meter comprises: an interconnection module, used for realizing data connection with the plurality of water-using devices and receiving status information and water use information sent by the water-using devices; the status information comprises water-using device startup or water-using device stop; a water leakage judgment module, used for judging the water leakage condition based on the water use information of the started water-using devices and the monitored water flow when judging that a water-using device is started based on the status information; and judging the water leakage condition based on the monitored water flow when judging that all water-using devices are stopped based on the status information.

[0013] Furthermore, the several water-using devices include: a water consumption self-detection module, which is used to detect its own water consumption, so that the water consumption information at least includes the self-detection water consumption; then the water leakage judgment module includes: a total water consumption calculation unit, which is used to calculate the total water consumption based on the monitored water flow; a water-using device self-detection water consumption calculation unit, which is used to calculate the total self-detection water consumption of all water-using devices that are started; a first water leakage judgment unit, which is used to compare the water consumption difference between the total water consumption and the total self-detection water consumption, and judge the water leakage condition based on the water consumption difference.

[0014] Furthermore, the several water-using devices all include: a first setting module, used to set the maximum single water usage duration, so that the water usage information at least includes the maximum single water usage duration; the water leakage judgment module includes: a second water leakage judgment unit, used to judge the actual water usage duration of the activated water-using equipment according to the status information, and when the actual water usage duration of any water-using equipment exceeds its maximum single water usage duration, a water leakage alarm is issued.

[0015] Furthermore, the several water-using devices all include: a second setting module, used to set the single maximum water consumption, so that the water use information at least includes the single maximum water consumption; the water leakage judgment module includes: a third water leakage judgment unit, used to monitor the self-test water consumption of each started water-using device, and when the self-test water consumption of any water-using device exceeds its single maximum water consumption, a water leakage alarm is issued.

[0016] Furthermore, the water leakage judgment module includes: a fourth water leakage judgment unit, which is used to judge the water leakage condition when a water leakage condition is judged to exist based on the water usage information of the started water-using equipment and the monitored water flow, and close the water inlet valve when the water leakage condition is higher than the tolerance limit; when the water leakage condition is lower than the tolerance limit, judge the suspected leaking equipment based on the water usage information and issue a water leakage alarm message; and after all water-using equipment has stopped, judge the water leakage condition within a set time period based on the monitored water flow, and close the water inlet valve when the set water volume is exceeded.

[0017] Compared with the prior art, the advantages and positive effects of the present invention are as follows: the water leakage detection method and system proposed in the present invention include several water-using devices and smart water meters, and the several water-using devices are interconnected with smart watches to realize data intercommunication. When the water-using devices are started, running, stopped and in standby, they can send their own status information and water use information to the smart water meter according to needs or settings. The smart water meter receives the status information sent by each water-using device while monitoring the water flow, and determines whether the water-using device is turned on or off according to the status information. When there is a water-using device turned on, the water leakage is determined according to the water use information of the started water-using device and the monitored water flow. When all water-using devices are stopped, the water leakage is determined according to the monitored water flow. Determine the water leakage situation; As can be seen from the above, the present invention executes different water leakage detection methods according to the different start and stop states of the water-using equipment. During the startup of the water-using equipment, the water leakage situation is determined based on the water consumption information of the started water-using equipment and the monitored water flow rate. The water consumption information includes but is not limited to the self-tested water consumption, the longest single water consumption time, the maximum single water consumption, etc., so that the judgment and identification of the water leakage situation during the water use period are more accurate and timely, avoiding the occurrence of false alarms. When all water-using equipment is stopped, the water leakage situation is determined based on the monitoring of the water flow rate, avoiding the problem that chronic water leakage cannot be discovered in time, and solving the technical problems of the existing smart water meter in monitoring water leakage and the existence of false alarms.

[0018] Furthermore, by making a preliminary judgment on the leakage condition during the startup of the water-using equipment, combined with the set tolerance limit, a preliminary alarm is issued when the leakage condition is lower than the tolerance limit, and the suspected leaking equipment is judged. After all water-using equipment is stopped, a secondary judgment is implemented by monitoring the water flow within the set time period, further avoiding the problem of chronic water leakage incidents that cannot be discovered in time.

[0019] Other features and advantages of the present invention will become more apparent after reading the detailed description of the embodiments of the present invention in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A method flow chart of the water leakage detection method proposed by the present invention;

[0021] Figure 2 This is a system architecture diagram of the water leakage detection system proposed by the present invention;

[0022] Figure 3 This is a flow chart of the water leakage detection method shown in the first embodiment of the present invention;

[0023] Figure 4 This is a flow chart of a water leakage detection method shown in Embodiment 2 of the present invention;

[0024] Figure 5 This is a flow chart of the water leakage detection method shown in Embodiment 3 of the present invention;

[0025] Figure 6 This is a flow chart of a water leakage detection method shown in Embodiment 4 of the present invention;

[0026] Figure 7 This is a schematic diagram of the water leakage detection system shown in Embodiment 5 of the present invention;

[0027] Figure 8 This is an architecture diagram of the water leakage detection system shown in Example 6 of the present invention. DETAILED DESCRIPTION

[0028] The specific implementation modes of the present invention are further described in detail below in conjunction with the accompanying drawings.

[0029] The water leakage detection method proposed by the present invention is applied to Figure 2 In the water system shown, the water system includes an indoor water circuit 1, a plurality of water-using devices 2 and a smart water meter 3; the smart water meter 3 is installed at the source of the indoor water circuit 1 to monitor the water flow; the plurality of water-using devices 2 are connected to the indoor water circuit 1, and the water consumption of each water-using device 2 is monitored by the smart water meter 3.

[0030] Water-using equipment 2 such as water purifiers, water heaters, dishwashers, washing machines, and any other equipment involving water use.

[0031] In the present application, each water-using device 2 and the smart water meter 3 are interconnected to achieve data intercommunication, that is, each water-using device 2 can report its own data to the smart water meter 3, and the smart water meter 3 can also send data to each water-using device 2.

[0032] Based on the above, the water leakage detection method proposed by the present invention is as follows: Figure 1 As shown, the following steps are included:

[0033] Step S11: The smart water meter monitors the water flow.

[0034] The smart water meter 3 monitors the flow rate and / or flow velocity of water in the indoor waterway 1, and can record the flow rate and / or flow velocity within a certain period through a storage module. The smart water meter 3 may also include a display module to display the monitored flow rate and / or flow velocity.

[0035] In the embodiment of the present invention, Figure 8 As shown, the smart water meter 3 can also be interconnected with the cloud service platform 4 through the interconnection module, and can send flow and / or flow rate information and water leakage alarms to the user terminal 5 interconnected with the cloud service.

[0036] Step S12: The smart water meter receives status information and water usage information sent by the water-using equipment.

[0037] Each water-using device 2 can send its own status information and water usage information to the smart water meter 3 according to demand or setting during startup, operation, stop and standby; wherein the status information includes water-using device startup, water-using device stop, water-using device identification, etc.

[0038] After receiving the status information and water usage information sent by each water-using device 2, the smart water meter 3 can determine the water usage status of each water-using device based on the status information, and can determine the water usage amount, water usage duration and other data based on the water usage information.

[0039] Step S13: When the smart water meter determines that a water-using device is started based on the status information, the water leakage condition is determined based on the water usage information of the started water-using device and the monitored water flow.

[0040] When any water-using device is started, the smart water meter 3 receives the status information sent by it, determines that it is in a water-using state, and continues to receive water-using information sent to it by the started water-using device. The water-using information here includes self-measured water consumption, actual water flow, water use time and any other information and data related to water use.

[0041] When the water-using equipment is started and is in the water-using state, in the application of the present invention, the smart water meter 3 determines the water leakage condition based on the water-using information of the water-using equipment and the monitored water flow. The water-using information reflects the real-time water-using condition of the water-using equipment, and the monitored water flow reflects the total water-using condition of the indoor waterway. The present invention takes the start-up of the water-using equipment as a node. During the start-up of any water-using equipment, the smart water meter compares the water-using condition reported by the water-using equipment with the water-using condition on the indoor waterway monitored by itself, and can accurately and timely detect whether a water leakage condition occurs, thereby solving the technical problem that the existing smart water meters do not monitor water leakage in a timely manner and the accuracy is not high enough.

[0042] Step S14: When it is determined based on the status information that all water-using devices have stopped, the water leakage condition is determined based on the monitored water flow rate.

[0043] When any water-using device stops, status information and water-using information are sent to the smart water meter 3 . During the standby period, current water-using information can also be sent to the smart water meter 3 in real time according to demand or setting.

[0044] When it is determined that all water-using equipment has stopped based on the status information of each water-using equipment, the smart water meter 3 switches the water leakage detection mode and determines the water leakage condition only by monitoring the water flow in the indoor water channel. If the water flow is still monitored during the period when all water-using equipment has stopped and is in standby mode, it indicates that there is a water leakage.

[0045] The water leakage detection method proposed in the present invention is described in detail below with reference to several specific embodiments.

[0046] Embodiment 1

[0047] In this embodiment, a detailed description is given of determining the water leakage condition based on the water usage information of the activated water-using equipment and the monitored water flow.

[0048] like Figure 7 As shown, in this embodiment, each water-using device is equipped with a water consumption self-detection module 21 for detecting its own water consumption and generating self-detected water consumption data.

[0049] like Figure 3 As shown, 1. When any water-using device is started, its status information and water use information including at least its self-measured water consumption are sent to the smart water meter 3.

[0050] 2. The smart water meter 3 receives the status information sent by it, determines that it is in water usage state, and continues to receive the water usage information sent by it.

[0051] 3. The water-using equipment includes the self-measured water consumption in the water consumption information and reports it to the smart water meter 3.

[0052] 4. After receiving the water consumption information sent by the water-using equipment, the smart water meter 3 parses out its self-tested water consumption and calculates the total self-tested water consumption ZQ of all the water-using equipment that are started.

[0053] 5. At the same time, the smart water meter 3 also calculates the total water consumption Q during the use of the activated water-using equipment based on the monitored water flow.

[0054] 6. The intelligent water meter 3 compares the water consumption difference ΔQ between the total water consumption Q and the total self-measured water consumption ZQ, and determines the water leakage situation according to the water consumption difference ΔQ.

[0055] When ΔQ is greater than the threshold, there is a water leak in the indoor water circuit and water-using equipment. The smart water meter 3 closes its water inlet valve to promptly avoid water leaks caused by pipeline leaks, equipment leaks, or human forgetting to close the water circuit or water-using equipment, thereby ensuring the user's water safety and improving the user experience.

[0056] When ΔQ is less than the threshold, it indicates that the indoor water circuits and water-using equipment are normal.

[0057] Embodiment 2

[0058] In this embodiment, a detailed description is given of determining the water leakage condition based on the water usage information of the activated water-using equipment and the monitored water flow.

[0059] like Figure 7As shown, in this embodiment, each water-using device has a first setting module 22 for setting its own maximum single water usage time TMax. The maximum single water usage time TMax can be set by the user according to the actual situation and needs of using the water-using device, or can be actively set by the water-using device according to device parameters, which is not specifically limited in this embodiment.

[0060] like Figure 4 As shown, 1. When any water-using device is started, its status information and water-using information including at least its single longest water-using time TMax are sent to the smart water meter 3.

[0061] 2. The smart water meter 3 receives the status information sent by it, determines that it is in water usage state, and continues to receive the water usage information sent by it.

[0062] 3. The water-using device includes the maximum single water usage duration TMax in the water usage information and reports it to the smart water meter 3.

[0063] 4. After receiving the water usage information sent by the water-using device, the smart water meter 3 parses out its maximum single water usage time TMax.

[0064] 5. At the same time, the smart water meter 3 also determines the actual water usage time t of the activated water-using equipment according to the received status information of each water-using equipment.

[0065] 6. Smart water meter 3 measures the actual water usage time t and the single longest water usage time TMax of each water-using device that is activated.

[0066] 7. When the actual water usage time t of any water-using equipment exceeds its single maximum water usage time TMax, a water leakage alarm will be issued.

[0067] 8. If the alarm exceeds the set time limit, the smart water meter 3 closes its water inlet valve to promptly avoid water leakage caused by forgetting to close the water line or water-using equipment, thereby ensuring the user's water safety and improving the user experience.

[0068] Embodiment 3

[0069] In this embodiment, a detailed description is given of determining the water leakage condition based on the water usage information of the activated water-using equipment and the monitored water flow.

[0070] like Figure 7As shown, in this embodiment, each water-using device is equipped with a water consumption self-detection module 21 and a second setting module 23; the water consumption self-detection module 21 is used to detect its own water consumption and generate self-detected water consumption data; the second setting module 23 is used to set its own single maximum water consumption QMax, and the single maximum water consumption QMax can be set by the user according to the actual situation and needs of the water-using device, and can also be actively set by the water-using device according to the device parameters, which is not specifically limited in this embodiment.

[0071] like Figure 5 As shown, 1. When any water-using device is started, its status information and water-using information including at least its self-tested water consumption and single maximum water consumption QMax are sent to the smart water meter 3.

[0072] 2. The smart water meter 3 receives the status information sent by it, determines that it is in water usage state, and continues to receive the water usage information sent by it.

[0073] 3. The water-using equipment includes the self-measured water consumption and the single maximum water consumption QMax in the water consumption information and reports it to the smart water meter 3.

[0074] 4. After receiving the water consumption information sent by the water-using device, the smart water meter 3 analyzes its self-tested water consumption and its single maximum water consumption QMax.

[0075] 5. For each water-using device that is being started, the smart water meter 3 monitors the relationship between its self-measured water consumption and its single maximum water consumption.

[0076] 6. When the self-tested water consumption of any water-using equipment exceeds its single maximum water consumption, a water leakage alarm will be issued.

[0077] 7. If the alarm exceeds the set time limit, the smart water meter 3 closes its water inlet valve to promptly avoid water leakage caused by forgetting to close the water line or water-using equipment, thereby ensuring the user's water safety and improving the user experience.

[0078] Embodiment 4

[0079] In this embodiment, a detailed description is given for possible chronic water leakage by combining water usage information based on the activated water-using equipment and the monitored water flow to determine the water leakage condition, and by determining the water leakage condition based on water flow monitoring after all water-using equipment is stopped.

[0080] like Figure 6 As shown, 1. When any water-using device is started, its status information and water-using information are sent to the smart water meter 3. The water-using information here includes but is not limited to self-measured water consumption, average single water consumption, average single water consumption duration, average water flow rate, current water flow rate, single longest water consumption duration, single maximum water consumption, etc.

[0081] 2. The smart water meter 3 receives the status information sent by it, determines that it is in water usage state, and continues to receive the water usage information sent by it.

[0082] 3. The water-using equipment includes information such as self-measured water consumption, average single water consumption, average single water consumption duration, average water flow rate, current water flow rate, single longest water consumption duration, and single maximum water consumption in the water consumption information, and reports it to the smart water meter 3.

[0083] 4. After receiving the water use information sent by the water use equipment, the smart water meter 3 parses out data such as its self-measured water use, average single water use, average single water use duration, average water flow rate, current water flow rate, single longest water use duration, and single maximum water use.

[0084] 5. For each water-using device being started, the smart water meter 3 uses the method in Implementation 1, Implementation 2 and / or Implementation 3 to determine the water leakage situation.

[0085] 6. If a water leakage is detected according to any of the embodiments, the water leakage is first determined.

[0086] Set a tolerance limit (water flow, water flow duration, etc.) and compare the current water leakage condition (water flow, water flow duration, etc.) with the tolerance limit.

[0087] The principle for setting the tolerance limit is that if the tolerance limit is not exceeded, it is considered that there may be a water leak, but the water leak is not serious. If the tolerance limit is exceeded, it is determined that there is a water leak.

[0088] 7. When the water leakage condition is higher than the tolerance limit, the smart water meter closes its water inlet valve.

[0089] 8. When the water leakage condition is lower than the tolerance limit, identify the suspected leaking equipment based on the water usage information.

[0090] When the leakage condition is lower than the tolerance limit, the suspected leaking equipment that may leak can be roughly located based on the water usage information of the water-using equipment. For example, based on the comparison between the self-tested water consumption uploaded by the water-using equipment and its average single water consumption, when the self-tested water consumption exceeds the average single water consumption, it is judged to be a suspected leaking equipment. For another example, based on the comparison between the current water flow rate of the water-using equipment and the average single water flow rate, when the current water flow rate exceeds the average single water flow rate, it is judged to be a suspected leaking equipment, and so on.

[0091] 9. Issue a water leak alarm.

[0092] A water leakage alarm is issued to the user, which at least includes the identification of the suspected leaking device, so that the user can locate the possible leaking device as soon as possible and check whether it is leaking.

[0093] 10. After all water-using equipment is stopped, the water leakage situation within the set time period is judged based on the monitored water flow rate. When the set water volume is exceeded, the smart water meter closes the water inlet valve.

[0094] If there is a suspected leaking device, then in an embodiment of the present invention, after all water-using devices are stopped, a second judgment is performed to calculate the water consumption in the indoor water circuit within a set time period (for example, ten minutes) based on the monitored water flow rate. If water consumption still occurs within ten minutes after all water-using devices are stopped, and the water consumption exceeds the set water volume, then it is determined through the second judgment that a chronic water leakage has occurred, and the smart water meter closes the water inlet valve to prevent the chronic water leakage from continuing to occur, thereby ensuring the user's water safety and improving the user experience.

[0095] Embodiment 5

[0096] Based on the water leakage detection method given in the above embodiment, this embodiment proposes a corresponding water leakage detection system, such as Figure 2 and 7 As shown, the water leakage detection system includes an indoor water channel 1, a plurality of water-using devices 2 and a smart water meter 3.

[0097] The smart water meter 3 includes an interconnection module 31 and a leakage judgment module 32: the interconnection module 31 is used to realize data connection with several water-using devices 2, and receive status information and water use information sent by the water-using devices 2; the status information includes the start-up of the water-using device or the stop of the water-using device; the leakage judgment module 32 is used to judge the water leakage condition based on the water use information of the started water-using device and the monitored water flow when it is judged based on the status information that there is a water-using device started; when it is judged based on the status information that all water-using devices are stopped, the water leakage condition is judged based on the monitored water flow.

[0098] In this embodiment, several water-using devices 2 all include a water consumption self-detection module 21, which is used to detect their own water consumption, so that the water consumption information at least includes the self-detection water consumption; the water leakage judgment module 32 includes a total water consumption calculation unit 321, a water-using device self-detection water consumption calculation unit 322 and a first water leakage judgment unit 323; the total water consumption calculation unit 321 is used to calculate the total water consumption according to the monitored water flow; the water-using device self-detection water consumption calculation unit 322 is used to calculate the total self-detection water consumption of all water-using devices that are started; the first water leakage judgment unit 323 is used to compare the water consumption difference between the total water consumption and the total self-detection water consumption, and judge the water leakage condition according to the water consumption difference.

[0099] In this embodiment, several water-using devices 2 all include a first setting module 22, which is used to set the maximum single water usage duration, so that the water use information at least includes the maximum single water usage duration; the water leakage judgment module 32 also includes a second water leakage judgment unit 324, which is used to judge the actual water usage duration of the activated water-using equipment according to the status information, and when the actual water usage duration of any water-using equipment exceeds its maximum single water usage duration, a water leakage alarm is issued.

[0100] In this embodiment, several water-using devices 2 include a second setting module 23, which is used to set the single maximum water consumption, so that the water use information at least includes the single maximum water consumption; then the water leakage judgment module 32 includes a third water leakage judgment unit 325, which is used to monitor the self-tested water consumption of each activated water-using device, and when the self-tested water consumption of any water-using device exceeds its single maximum water consumption, a water leakage alarm is issued.

[0101] In this embodiment, the water leakage judgment module 32 also includes a fourth water leakage judgment unit 326, which is used to judge the water leakage condition when a water leakage condition is judged to exist based on the water usage information of the started water-using equipment and the monitored water flow, and close the water inlet valve when the water leakage condition is higher than the tolerance limit; when the water leakage condition is lower than the tolerance limit, judge the suspected leaking equipment based on the water usage information and issue a water leakage alarm message; and after all water-using equipment has stopped, judge the water leakage condition within a set time period based on the monitored water flow, and close the water inlet valve when the set water volume is exceeded.

[0102] The specific detection method of the water leakage system is implemented by referring to any one of the methods in Embodiment 1 to Embodiment 4 or a combination of any several of the methods, which will not be described in detail in this embodiment.

[0103] Embodiment 6

[0104] This embodiment is based on the fifth embodiment. Figure 8 As shown, the smart water meter 3 can be interconnected with the cloud service platform 4 through the interconnection module 31. The smart water meter 3 can transmit the flow rate and / or flow velocity information it checks, the status information and water use information sent to it by each water-using device 2, as well as the data calculated by itself and water leakage alarm information, to the user terminal 5 connected to the cloud service platform 4, so that the user can timely learn about the indoor water use status based on the user terminal 5.

[0105] In the above embodiments, the water leakage alarm can be implemented in any existing alarm mode, such as voice broadcast, light flash or buzzer, display on a display screen, or sending information to a user terminal interconnected with the smart water meter, etc. The present invention does not specifically limit this.

[0106] It should be pointed out that the above description is not a limitation of the present invention, and the present invention is not limited to the above examples. Changes, modifications, additions or substitutions made by ordinary technicians in this technical field within the essential scope of the present invention should also fall within the scope of protection of the present invention.

Claims

1. A water leakage detection method is applied to a water leakage detection system, wherein the system includes a plurality of water-using devices and a smart water meter, wherein the plurality of water-using devices are interconnected with the smart water meter to realize data intercommunication, and wherein: include: Smart water meters monitor water flow; and, The smart water meter receives status information and water usage information sent by the water-using equipment; The status information includes the start of the water-using device or the stop of the water-using device; When the smart water meter determines that a water-using device is started based on the status information, the water leakage condition is determined based on the water consumption information of the started water-using device and the monitored water flow; When it is determined based on the status information that all water-using devices have stopped, the water leakage condition is determined based on the monitored water flow; The water use information includes a single maximum water use duration, and the method further includes: Set the maximum water usage time for each water-using device; The smart water meter determines the actual water use duration of the activated water-using equipment according to the status information; When the actual water usage time of any water-using equipment exceeds its maximum single water usage time, a water leakage alarm will be issued; The water consumption information includes a single maximum water consumption, and the method further includes: Set the maximum water consumption per time for each water-using device; The smart water meter monitors the self-tested water consumption of each activated water-using device; When the self-tested water consumption of any water-using equipment exceeds its single maximum water consumption, a water leakage alarm will be issued; When it is determined that there is a water leakage condition based on the water consumption information of the activated water-using equipment and the monitored water flow, the method further includes: Determine the water leakage condition; When the water leakage is higher than the tolerance limit, close the water inlet valve; When the water leakage condition is lower than the tolerance limit, the suspected leaking equipment is judged based on the water usage information and a water leakage alarm is issued; and after all water-using equipment is stopped, the water leakage condition within the set time period is judged based on the monitored water flow rate, and the water inlet valve is closed when the set water volume is exceeded; The water leakage alarm information includes the identification of the suspected leaking equipment.

2. The water leakage detection method according to claim 1, characterized in that: The water consumption information includes self-measured water consumption; The water leakage condition is judged based on the water consumption information of the activated water-using equipment and the monitored water flow, including: Smart water meters calculate total water usage based on monitored water flow; and, Calculate the total self-tested water consumption of all water-using devices that are activated; compare the difference between the total water consumption and the total self-tested water consumption, and determine the water leakage condition based on the water consumption difference.

3. A water leakage detection system, comprising: Indoor waterways; A smart water meter installed at the source of the indoor waterway to monitor water flow; Several water-using equipment, all connected to the indoor water circuit; Characterized in that the smart water meter comprises: An interconnection module, used to achieve data connection with the plurality of water-using devices, and receive status information and water-using information sent by the water-using devices; the status information includes the start-up or stop-up of the water-using devices; A water leakage judgment module is used to judge the water leakage condition based on the water consumption information of the started water-using equipment and the monitored water flow when it is judged based on the status information that there is a water-using equipment started; and to judge the water leakage condition based on the monitored water flow when it is judged based on the status information that all water-using equipment is stopped; The several water-using equipments include: A first setting module, used to set a single maximum water usage duration, so that the water usage information at least includes a single maximum water usage duration; The water leakage judgment module comprises: A second water leakage judgment unit is used to judge the actual water use duration of the activated water-using equipment according to the state information, and to issue a water leakage alarm when the actual water use duration of any water-using equipment exceeds its single longest water use duration; The several water-using equipments include: A second setting module is used to set a single maximum water consumption, so that the water consumption information at least includes a single maximum water consumption; The water leakage judgment module comprises: The third water leakage judgment unit is used to monitor the self-tested water consumption of each activated water-using device, and when the self-tested water consumption of any water-using device exceeds its single maximum water consumption, a water leakage alarm is issued; The water leakage judgment module comprises: The fourth water leakage judgment unit is used to judge the water leakage condition when a water leakage condition is judged to exist based on the water usage information of the started water-using equipment and the monitored water flow, and close the water inlet valve when the water leakage condition is higher than the tolerance limit; when the water leakage condition is lower than the tolerance limit, judge the suspected leaking equipment based on the water usage information and issue a water leakage alarm message; and after all water-using equipment are stopped, judge the water leakage condition within a set time period based on the monitored water flow, and close the water inlet valve when the set water volume is exceeded.

4. The water leakage detection system according to claim 3, characterized in that: The several water-using equipments include: A water consumption self-checking module, used to detect its own water consumption, so that the water consumption information at least includes the self-checked water consumption; The water leakage judgment module includes: A unit for calculating total water consumption, used to calculate total water consumption based on monitored water flow; The water consumption calculation unit of the water-using equipment is used to calculate the total self-tested water consumption of all the water-using equipment being started; The first water leakage judgment unit is used to compare the water consumption difference between the total water consumption and the total self-test water consumption, and judge the water leakage condition according to the water consumption difference.

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