A secondary water supply control method and related equipment

Abstract

The present application provides a control method and related equipment for secondary water supply, which are applied to the field of secondary water supply technology. The method includes: obtaining pressure data and flow data in the water supply pipeline; judging the current water supply situation in the water supply pipeline based on the pressure data and flow data; and providing secondary water supply services based on the judgment results. Based on the pressure data and flow data in the water supply pipeline, the water demand in the building can be accurately judged, and then secondary water supply services can be provided based on the judgment results. Ensure that water outages caused by pump stoppage occur when there is actual water use in the building; stop the pump in time when there is actually no water use in the building, thereby achieving the purpose of energy saving and consumption reduction, reducing equipment operating load and increasing equipment service life.

Description

Technical Field

[0001] The present application relates to the technical field of secondary water supply, and in particular to a control method and related equipment for secondary water supply. Background Art

[0002] With economic development and the increasing number of high-rise buildings in cities, secondary water supply has become an indispensable part of meeting urban water needs. When the water pressure and volume requirements for drinking water in residential and industrial buildings exceed the capacity of the urban public water supply or the water supply network of private facilities, water is supplied to users or for their own use through pipelines through storage and pressurization facilities. This is called secondary water supply.

[0003] In building secondary water supply control systems, water usage is typically determined based on pipe pressure within the water supply pipeline, which in turn controls the start and stop of water pumps. However, pipe pressure alone cannot accurately determine actual building water usage, leading to a mismatch between water supply and water usage, and an inability to accurately control the start and stop of water pumps, resulting in wasted energy and useless work. Summary of the Invention

[0004] In view of this, an embodiment of the present application provides a secondary water supply control method and related equipment, which aims to accurately determine the water usage situation in a building and provide secondary water supply.

[0005] In a first aspect, an embodiment of the present application provides a method for controlling secondary water supply, the method comprising:

[0006] Obtain pressure data and flow data in water supply pipelines;

[0007] Determining the current water supply situation in the water supply pipe according to the pressure data and the flow data;

[0008] Provide secondary water supply service based on the judgment results.

[0009] Preferably, judging the current water supply condition in the water supply pipe according to the pressure data and the flow data includes:

[0010] Comparing the pressure data with a pressure setting value, wherein the pressure setting value is a pressure value in the water supply pipe when maintaining normal water use by users on the highest floor of the building;

[0011] If the difference between the pressure data and the pressure setting value is greater than the pressure detection error value, it is determined that there is no water supply in the water supply pipeline;

[0012] If the difference between the pressure data and the pressure setting value is less than or equal to the pressure detection error value, the current water supply condition in the water supply pipe is determined based on the flow data.

[0013] Preferably, the flow data at least includes real-time flow rate data, and the determining of the current water supply condition in the water supply pipe based on the flow data includes:

[0014] If the flow data also includes an accumulated flow signal, and / or the real-time flow rate data is greater than or equal to a set flow rate value, it is determined that there is water supply in the current water supply pipe; wherein the accumulated flow signal is a signal generated when the flow in the water supply pipe reaches a water supply flow threshold, and the water supply flow threshold is a critical value of the water supply flow for determining whether there is water supply in the water supply pipe;

[0015] If no accumulated flow signal is obtained when acquiring the flow data, and the real-time flow rate data is less than the flow rate setting value, it is determined that there is no water supply in the water supply pipeline.

[0016] Preferably, the flow data at least includes real-time flow rate data, and the determining of the current water supply condition in the water supply pipe based on the flow data includes:

[0017] If the flow data also includes an accumulated flow signal, and / or the real-time flow rate data is greater than or equal to the flow rate setting value, it is determined that there is water supply in the current water supply pipe, and the accumulated flow rate integral value is cleared to zero; wherein the accumulated flow signal is a signal generated when the flow in the water supply pipe reaches a water supply flow threshold, and the water supply flow threshold is a critical value of the water supply flow for determining whether there is water supply in the water supply pipe;

[0018] If no cumulative flow signal is obtained when acquiring the flow data, and the real-time flow rate data is less than the flow rate setting value, integrating and accumulating the real-time flow rate data to obtain a flow rate integral cumulative value, and the flow rate integral cumulative value is used to represent the water supply flow in the water supply pipe;

[0019] The current water supply condition in the water supply pipe is determined according to the flow velocity integral accumulated value and the water supply flow threshold.

[0020] Preferably, judging the current water supply condition in the water supply pipe according to the flow velocity integral accumulated value and the water supply flow threshold value includes:

[0021] If the flow rate integral accumulated value is greater than N times the water supply flow threshold, it is determined that there is water supply in the current water supply pipeline, and N is greater than 1;

[0022] If the flow velocity integral accumulated value is less than or equal to N times the water supply flow threshold, it is determined that the current water supply situation in the water supply pipe has not changed.

[0023] Preferably, the method further comprises:

[0024] Determining whether the pressure data is lower than a critical pipe pressure value, the critical pipe pressure value being a pressure value at which water reaches the highest floor of a building when no water is used in the building;

[0025] When the pressure data is lower than the pipeline pressure critical value, a start signal is sent to the water pump to make the pressure data reach the pipeline pressure critical value;

[0026] When the pressure data is greater than or equal to the pipeline pressure critical value, the water pump state is kept unchanged.

[0027] Preferably, providing a secondary water supply service according to the judgment result includes:

[0028] When the judgment result indicates that there is water supply in the water supply pipeline, a start signal is sent to the water pump to supply water;

[0029] When the judgment result indicates that there is no water supply in the water supply pipeline, a stop signal is sent to the water pump to stop the water supply.

[0030] In a second aspect, an embodiment of the present application provides a control device for secondary water supply, the device comprising:

[0031] An acquisition module, used to obtain pressure data and flow data in the water supply pipeline;

[0032] a judgment module, configured to judge the current water supply condition in the water supply pipeline according to the pressure data and the flow data;

[0033] The control module is used to provide secondary water supply service according to the judgment result.

[0034] Preferably, the judgment module is specifically used to compare the pressure data with a pressure setting value, where the pressure setting value is the pressure value in the water supply pipe when maintaining normal water use by users on the highest floor of the building; if the difference between the pressure data and the pressure setting value is greater than a pressure detection error value, it is determined that there is no water supply in the current water supply pipe; if the difference between the pressure data and the pressure setting value is less than or equal to the pressure detection error value, the water supply condition in the current water supply pipe is determined based on the flow data.

[0035] Preferably, the judgment module is specifically used to determine whether there is water supply in the current water supply pipe if the flow data also includes a cumulative flow signal, and / or the real-time flow rate data is greater than or equal to the flow rate setting value; wherein, the cumulative flow signal is a signal generated when the flow in the water supply pipe reaches a water supply flow threshold, and the water supply flow threshold is a water supply flow critical value for determining whether there is water supply in the water supply pipe; if no cumulative flow signal is obtained when obtaining the flow data, and the real-time flow rate data is less than the flow rate setting value, it is determined that there is no water supply in the current water supply pipe.

[0036] Preferably, the judgment module is specifically used to determine that there is water supply in the current water supply pipe if the flow data also includes a cumulative flow signal, and / or the real-time flow rate data is greater than or equal to the flow rate setting value, and clear the flow rate integral cumulative value to zero; wherein, the cumulative flow signal is a signal generated when the flow in the water supply pipe reaches a water supply flow threshold, and the water supply flow threshold is a water supply flow critical value for judging whether there is water supply in the water supply pipe; if no cumulative flow signal is obtained when obtaining the flow data, and the real-time flow rate data is less than the flow rate setting value, the real-time flow rate data is integrated and accumulated to obtain a flow rate integral cumulative value, and the flow rate integral cumulative value is used to represent the water supply flow in the water supply pipe; the current water supply situation in the water supply pipe is judged according to the flow rate integral cumulative value and the water supply flow threshold.

[0037] Preferably, the judgment module is specifically used to determine that there is water supply in the current water supply pipeline if the accumulated value of the flow velocity integral is greater than N times the water supply flow threshold, and N is greater than 1; if the accumulated value of the flow velocity integral is less than or equal to N times the water supply flow threshold, it is determined that the water supply situation in the current water supply pipeline has not changed.

[0038] Preferably, the device further comprises:

[0039] The regulating module is used to determine whether the pressure data is lower than the pipeline pressure critical value. The pipeline pressure critical value is the pressure value at which the water reaches the highest floor of the building when there is no water in the building; when the pressure data is lower than the pipeline pressure critical value, a start signal is sent to the water pump to make the pressure data reach the pipeline pressure critical value; when the pressure data is greater than or equal to the pipeline pressure critical value, the water pump state is kept unchanged.

[0040] Preferably, the control module is specifically used to send a start signal to the water pump to supply water when the judgment result indicates that there is water supply in the current water supply pipeline; and send a stop signal to the water pump to stop water supply when the judgment result indicates that there is no water supply in the current water supply pipeline.

[0041] In a third aspect, an embodiment of the present application provides a device comprising a memory and a processor, wherein the memory is used to store instructions or codes, and the processor is used to execute the instructions or codes so that the device executes the secondary water supply control method described in any one of the first aspects above.

[0042] In a fourth aspect, an embodiment of the present application provides a computer storage medium, in which a code is stored. When the code is executed, the device executing the code implements the secondary water supply control method described in any one of the first aspects above.

[0043] An embodiment of the present application provides a method for controlling secondary water supply. When executing the method, the pressure data and flow data in the water supply pipeline are first obtained, and then the water supply situation in the current water supply pipeline is judged based on the pressure data and flow data, and finally a secondary water supply service is provided based on the judgment result. In this way, based on the pressure data and flow data in the water supply pipeline, the water demand in the building can be accurately judged, and then a secondary water supply service is provided based on the judgment result. Ensure that the water outage caused by stopping the pump occurs when there is actual water use in the building; stop the pump in time when there is actually no water use in the building, thereby achieving the purpose of energy saving and consumption reduction, reducing the equipment operating load and increasing the service life of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] In order to more clearly illustrate the technical solutions in this embodiment or the prior art, the following briefly introduces the drawings required for use in the embodiment or the prior art description. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0045] Figure 1 A schematic structural diagram of a secondary water supply device provided in an embodiment of the present application;

[0046] Figure 2 A flow chart of a first secondary water supply control method provided in an embodiment of the present application;

[0047] Figure 3 A flow chart of a second secondary water supply control method provided in an embodiment of the present application;

[0048] Figure 4 A flow chart of a third secondary water supply control method provided in an embodiment of the present application;

[0049] Figure 5 A flow chart of a fourth secondary water supply control method provided in an embodiment of the present application;

[0050] Figure 6A flow chart of a fifth secondary water supply control method provided in an embodiment of the present application;

[0051] Figure 7 A schematic structural diagram of a secondary water supply control device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0052] The main equipment involved in secondary water supply systems in current urban buildings includes water storage tanks, water pumps, inverters, PLC controllers, pressure sensors, and flow sensors. The PLC controller acquires pressure data from the pressure sensor and uses the inverter to start and stop the water pump and adjust its operating frequency based on this pressure data to maintain stable pressure in the water supply pipeline and meet water demand on all floors of the building.

[0053] However, the control method in the related art does not consider the actual water consumption in the building. The flow data collected by the flow sensor is only used for statistics, and the control target of the PLC controller is only to maintain the pipeline pressure to meet the requirements, as follows:

[0054] (1) When performing secondary water supply control, the actual water consumption of the building is not taken into consideration, and only the pipeline pressure is maintained to meet the requirements. When the water supply pipeline pressure is lower than the minimum critical pressure value, the water pump operating frequency is increased or the number of working water pumps is increased. When the water supply pipeline pressure is higher than the maximum critical pressure value, the water pump operating frequency is reduced or the number of working water pumps is reduced.

[0055] (2) When performing secondary water supply control, only the water supply pipe pressure data is used as the condition for stopping the water pump. When the difference between the control pressure and the actual pressure is within a small range and maintains for a period of time, it is determined that the building has no water and the pump is stopped.

[0056] The above method (1) cannot control the water pump to stop working when the building does not use water. The water pump will continue to run, resulting in a waste of resources; and method (2) cannot accurately determine whether the building uses water. The main goal of the control system is to maintain the stability of the water supply pipeline pressure. After the control system is adjusted and stabilized, there will be a small difference between the control pressure and the actual pressure. At this time, it may be that the building does not use water, or the building's water consumption may be relatively stable. At this time, the system cannot determine what situation causes the pressure to be stable. Incorrect judgment will lead to the interruption of water supply to the building that needs water supply, which has a bad impact on the water use experience of building users.

[0057] In response to the technical problems existing in the above-mentioned technologies, this application proposes a secondary water supply control method and related equipment, which can accurately judge the actual water use situation of the building based on the pressure data and flow data of the water supply pipeline, ensure that there is no water outage caused by stopping the pump when there is actual water use in the building, and stop the pump in time when there is no actual water use in the building to maintain the basic pressure of the pipeline, thereby achieving the purpose of energy saving and consumption reduction, reducing equipment operating load and improving equipment service life.

[0058] Below, the method provided by this application is introduced in conjunction with a secondary water supply device, such as Figure 1 As shown, Figure 1 This is a schematic diagram of the structure of a secondary water supply device provided in an embodiment of the present application. A pressure sensor and a flow sensor are installed in the water supply pipeline connecting multiple water pumps. The pressure data collected by the pressure sensor is connected to the PLC controller as a 4-20mA analog signal; the flow data collected by the flow sensor is connected to the PLC controller as a 4-20mA analog signal. The water pump is controlled by a frequency converter. The frequency converter's start and stop control and operation feedback are connected to the PLC controller as switch signals. The frequency converter's frequency regulation and frequency feedback are connected to the PLC controller as 4-20mA analog signals.

[0059] The PLC controller uses pressure and flow sensors to obtain pressure and flow data from the water supply pipeline. Based on this pressure and flow data, it determines whether the building is using water, specifically whether there is water supply within the pipeline. If so, the inverter controls the pump to operate, supplying water to the building. If not, the inverter controls the pump to stop operating, eliminating the need for water supply. This method accurately determines the building's water demand based on pressure and flow data from the water supply pipeline, and provides secondary water supply services based on the results of this determination. This ensures that water outages caused by pump shutdown occur when the building is actually using water, and that pumps are stopped when no water is actually being used, thereby achieving energy savings, reducing equipment operating load, and extending equipment life.

[0060] Obviously, the embodiments described are only part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0061] See also Figure 2 , Figure 2 The flow chart of the first secondary water supply control method provided in the embodiment of the present application includes:

[0062] S201: Obtain pressure data and flow data in the water supply pipeline.

[0063] Pressure and flow data are collected in real time by pressure sensors and flow sensors installed on the water supply pipes. By obtaining relevant real-time data from the water supply pipes, the water supply status in the water supply pipes can be more accurately determined and updated.

[0064] S202: Determine the current water supply status in the water supply pipeline based on the pressure data and the flow data.

[0065] Based on the pressure data and flow data acquired in step S201, a determination is made as to whether there is water demand within the building. For example, the pressure data or flow data within the water supply pipe indicates whether there is water demand within the building. This determination based on both pressure and flow data can further improve the accuracy of the determination, preventing errors resulting from relying solely on pressure data. Furthermore, flow data can be fully utilized, not just as a basis for calculating water consumption, but also to support the accuracy of the determination.

[0066] S203: Providing secondary water supply service according to the judgment result.

[0067] The water supply situation in the water supply pipeline is judged and a judgment result is obtained, and then the water pump can be controlled according to the judgment result to provide secondary water supply service.

[0068] Specifically, when the judgment result indicates that there is water supply in the current water supply pipeline, a start signal is sent to the water pump to supply water; when the judgment result indicates that there is no water supply in the current water supply pipeline, a stop signal is sent to the water pump to stop supplying water.

[0069] The embodiment of the present application provides a control method for secondary water supply. First, the pressure data and flow data in the water supply pipeline are obtained, and then the current water supply situation in the water supply pipeline is judged based on the pressure data and flow data, and finally, a secondary water supply service is provided based on the judgment result. In this way, based on the pressure data and flow data in the water supply pipeline, the water demand in the building can be accurately judged, and then a secondary water supply service is provided based on the judgment result. Ensure that the water outage caused by stopping the pump occurs when there is actual water use in the building; stop the pump in time when there is actually no water use in the building, thereby achieving the purpose of energy saving and consumption reduction, reducing the equipment operating load and increasing the service life of the equipment.

[0070] In the embodiment of the present application, the above Figure 1 There are other possible implementations of step S202, which are described below in conjunction with the accompanying drawings. It should be noted that the implementations described below are only for illustrative purposes and do not represent all implementations of the embodiments of the present application.

[0071] See also Figure 3 , Figure 3The flow chart of the second secondary water supply control method provided in the embodiment of the present application includes:

[0072] Step a: Obtain pressure data and flow data in the water supply pipeline.

[0073] Step b: Compare the pressure data with the pressure setting value.

[0074] The pressure setting value is the pressure value in the water supply pipe when maintaining normal water consumption by users on the highest floor of the building. By comparing the pressure data with the pressure setting value, it can be determined whether there is a current water demand in the building.

[0075] Step c: If the difference between the pressure data and the pressure setting value is greater than the pressure detection error value, it is determined that there is no water supply in the water supply pipeline.

[0076] Because pressure data is fed into the PLC controller as a 4-20mA analog signal, requiring digital-to-analog conversion, a certain error, known as the pressure detection error, will occur during this process. If the difference between the pressure data and the set pressure value is greater than the pressure detection error, indicating that the sum of the pressure data and the pressure detection error does not meet the set pressure value, it is determined that there is no water in the water supply pipe, and step e is executed.

[0077] Step d: If the difference between the pressure data and the pressure setting value is smaller than the pressure detection error value, the current water supply condition in the water supply pipe is determined based on the flow data.

[0078] Similarly, when the difference between the pressure data and the pressure setting value is less than or equal to the pressure detection error value, it indicates that the pressure data is approximately equal to the pressure setting value, and it is determined that there may be water supply in the water supply pipeline, but it is possible that the water supply pipeline is actually not using water but the pressure is relatively stable. Therefore, it is also necessary to judge the current water supply situation in the water supply pipeline based on the flow data, and then execute step e.

[0079] Step e: Provide secondary water supply service based on the judgment result.

[0080] First, determine whether there is water supply in the water supply pipe based on the pressure data and the pressure setting value, and then determine the water supply situation in the water supply pipe based on the flow data. This can more accurately determine whether there is water demand in the building, and then control the water pump to achieve energy saving and consumption reduction, reduce equipment operating load and increase equipment service life.

[0081] In another embodiment provided by the present application, the flow data includes at least real-time flow rate data, and determining the current water supply condition in the water supply pipe according to the flow data includes:

[0082] If the flow data also includes an accumulated flow signal, and / or the real-time flow rate data is greater than or equal to the flow rate setting value, it is determined that there is water supply in the current water supply pipeline; wherein the accumulated flow signal is a signal generated when the flow in the water supply pipeline reaches a water supply flow threshold, and the water supply flow threshold is a critical value of the water supply flow for determining whether there is water supply in the water supply pipeline;

[0083] If the accumulated flow signal is not obtained when acquiring the flow data, and the real-time flow rate data is less than the flow rate setting value, it is determined that there is no water supply in the current water supply pipeline.

[0084] See also Figure 4 , Figure 4 This is a flow chart of the third secondary water supply control method provided in an embodiment of the present application.

[0085] The cumulative flow signal can indicate that the flow rate in the water supply pipe has reached the critical value for determining whether there is water supply. When the flow data includes the cumulative flow signal, that is, when the cumulative flow signal is obtained, it means that there is water supply in the water supply pipe. The real-time flow rate data represents the instantaneous rate of water flow in the water supply pipe. When the real-time flow rate data is greater than or equal to the set flow rate value, it also means that there is water supply in the water supply pipe. Therefore, the flow data also includes the cumulative flow signal and the real-time flow rate data is greater than or equal to the set flow rate value. If both or either of these two conditions are met, it can be determined that there is water supply in the water supply pipe, and secondary water supply service can be provided based on the judgment result.

[0086] On the contrary, when no cumulative flow signal is obtained when obtaining flow data, and the real-time flow rate data is less than the flow rate setting value, it indicates that there is no water supply in the water supply pipe. Therefore, it is determined that there is no water supply in the water supply pipe, and secondary water supply service is provided based on the judgment result.

[0087] Through the above method, the water supply situation can be accurately judged according to the flow data, and then secondary water supply service can be provided according to the judgment result.

[0088] To eliminate errors caused by digital-to-analog conversion and time delay when acquiring flow data, this application also provides another method for determining water supply conditions based on flow data. Flow data includes at least real-time flow rate data. Determining the current water supply condition in the water supply pipeline based on flow data includes:

[0089] If the flow data also includes an accumulated flow signal, and / or the real-time flow rate data is greater than or equal to the flow rate setting value, it is determined that there is water supply in the current water supply pipeline, and the accumulated flow rate integral value is cleared to zero; wherein the accumulated flow signal is a signal generated when the flow in the water supply pipeline reaches the water supply flow threshold, and the water supply flow threshold is a critical value of the water supply flow for determining whether there is water supply in the water supply pipeline;

[0090] If no cumulative flow signal is obtained when acquiring flow data, and the real-time flow velocity data is less than the flow velocity set value, the real-time flow velocity data is integrated and accumulated to obtain a flow velocity integral cumulative value, which is used to represent the water supply flow in the water supply pipe;

[0091] The current water supply situation in the water supply pipeline is determined based on the flow rate integral accumulated value and the water supply flow threshold. Figure 5 As shown, Figure 5 This is a flow chart of the fourth secondary water supply control method provided in an embodiment of the present application.

[0092] In an embodiment of the present application, when a cumulative flow rate signal is obtained and / or the real-time flow rate data is greater than or equal to the flow rate setting value, it is determined that there is water supply in the current water supply pipeline, and the flow rate integral cumulative value is cleared. If no cumulative flow rate signal is obtained and the real-time flow rate data is less than the flow rate setting value, it is necessary to integrate and accumulate the real-time flow rate data. Since the flow data is connected to the PLC controller as a 4-20mA analog signal, digital-to-analog conversion is required, and the flow data will have a certain delay during the transmission process. Therefore, there will be a certain delay in the flow output transmission process, and there will be errors. In order to eliminate the influence of errors on the accuracy of the judgment result, the real-time flow rate data is integrated and accumulated to obtain the flow rate integral cumulative value. Then, based on the flow rate integral cumulative value and the water supply flow rate threshold, it is determined whether there is water supply in the water supply pipeline, thereby reducing the influence of errors on the judgment result and improving the accuracy of the judgment result.

[0093] Specifically, the current water supply situation in the water supply pipe is judged based on the flow rate integral accumulated value and the water supply flow threshold, including:

[0094] If the flow rate integral accumulated value is greater than N times the water supply flow threshold, it is determined that there is water supply in the current water supply pipeline, and N is greater than 1;

[0095] If the accumulated value of the flow rate integral is less than or equal to N times the water supply flow threshold, it is determined that the water supply situation in the current water supply pipe has not changed.

[0096] See also Figure 6 , Figure 6 This is a flow chart of the fifth secondary water supply control method provided in an embodiment of the present application.

[0097] When the accumulated flow rate integral is greater than N times the water supply flow threshold, it indicates that there is water demand in the building, and the water supply pipeline is determined to be in a water supply state. When the accumulated flow rate integral is less than or equal to N times the water supply flow threshold, it indicates that there is no water demand in the building, and the water supply pipeline is determined to be in a water supply state. It should be noted that N is greater than 1, but the specific value can be set according to actual conditions. In the embodiment of the present application, the value of N can be 2. When N is equal to 2, the accuracy of the judgment result is higher.

[0098] In the embodiment of the present application, it is also determined whether the pressure data is lower than the pipeline pressure critical value, as follows:

[0099] Determine whether the pressure data is lower than the critical value of pipeline pressure. The critical value of pipeline pressure is the pressure value that makes water reach the highest floor of the building when there is no water in the building;

[0100] When the pressure data is lower than the critical value of the pipeline pressure, a start signal is sent to the water pump to make the pressure data reach the critical value of the pipeline pressure;

[0101] When the pressure data is greater than or equal to the pipeline pressure critical value, the water pump state remains unchanged.

[0102] If the pressure data is below the critical pipe pressure value, it indicates that the water level in the building is low. For example, if the water level is on the first or second floor, if a user on a higher floor in the building needs water, the water level must be raised to the corresponding floor before water can be supplied. Therefore, the pressure data is checked to see if it is below the critical pipe pressure value. If so, a start signal is sent to the water pump to bring the pressure data to the critical pipe pressure value; if not, the water pump state remains unchanged. This method can maintain the water level at the highest floor of the building when there is no water demand, and can respond promptly when a user on a higher floor needs water, improving the user's water experience.

[0103] The above are some specific implementations of the secondary water supply control method provided in the embodiment of the present application. Based on this, the present application also provides a corresponding device. The device provided in the embodiment of the present application will be introduced from the perspective of functional modularization.

[0104] See also Figure 7 , Figure 7 This is a structural diagram of a secondary water supply control device provided in an embodiment of the present application. The device includes an acquisition module 701, a judgment module 702 and a control module 703.

[0105] An acquisition module 701 is used to acquire pressure data and flow data in a water supply pipeline;

[0106] A judgment module 702 is configured to judge the current water supply status in the water supply pipeline according to the pressure data and the flow data;

[0107] The control module 703 is used to provide secondary water supply service according to the judgment result.

[0108] The embodiment of the present application provides a control device for secondary water supply. First, the pressure data and flow data in the water supply pipeline are obtained, and then the current water supply situation in the water supply pipeline is judged based on the pressure data and flow data, and finally, a secondary water supply service is provided based on the judgment result. In this way, based on the pressure data and flow data in the water supply pipeline, the water demand in the building can be accurately judged, and then a secondary water supply service is provided based on the judgment result. It is ensured that the water outage caused by stopping the pump occurs when there is actual water use in the building; when there is no actual water use in the building, the pump is stopped in time, thereby achieving the purpose of energy saving and consumption reduction, reducing the equipment operating load and increasing the service life of the equipment.

[0109] In an embodiment of the present application, the judgment module 702 is specifically used to compare the pressure data with the pressure setting value, where the pressure setting value is the pressure value in the water supply pipe when maintaining normal water use by users on the highest floor of the building; if the difference between the pressure data and the pressure setting value is greater than the pressure detection error value, it is determined that there is no water supply in the current water supply pipe; if the difference between the pressure data and the pressure setting value is less than or equal to the pressure detection error value, the water supply condition in the current water supply pipe is determined based on the flow data.

[0110] In an embodiment of the present application, the judgment module 702 is specifically used to determine whether there is water supply in the current water supply pipe if the flow data also includes a cumulative flow signal, and / or the real-time flow rate data is greater than or equal to the flow rate setting value; wherein, the cumulative flow signal is a signal generated when the flow in the water supply pipe reaches a water supply flow threshold, and the water supply flow threshold is a water supply flow critical value for determining whether there is water supply in the water supply pipe; if no cumulative flow signal is obtained when obtaining the flow data, and the real-time flow rate data is less than the flow rate setting value, it is determined that there is no water supply in the current water supply pipe.

[0111] In an embodiment of the present application, the judgment module 702 is specifically used to determine that there is water supply in the current water supply pipe if the flow data also includes a cumulative flow signal, and / or the real-time flow rate data is greater than or equal to the flow rate setting value, and clear the flow rate integral cumulative value to zero; wherein, the cumulative flow signal is a signal generated when the flow in the water supply pipe reaches a water supply flow threshold, and the water supply flow threshold is a water supply flow critical value for judging whether there is water supply in the water supply pipe; if the cumulative flow signal is not obtained when obtaining the flow data, and the real-time flow rate data is less than the flow rate setting value, the real-time flow rate data is integrated and accumulated to obtain a flow rate integral cumulative value, and the flow rate integral cumulative value is used to represent the water supply flow in the water supply pipe; the current water supply situation in the water supply pipe is judged based on the flow rate integral cumulative value and the water supply flow threshold.

[0112] In an embodiment of the present application, the judgment module 702 is specifically used to determine that there is water supply in the current water supply pipe if the accumulated value of the flow velocity integral is greater than N times the water supply flow threshold, and N is greater than 1; if the accumulated value of the flow velocity integral is less than or equal to N times the water supply flow threshold, it is determined that the water supply situation in the current water supply pipe has not changed.

[0113] In an embodiment of the present application, the device further includes:

[0114] The regulating module is used to determine whether the pressure data is lower than the pipeline pressure critical value. The pipeline pressure critical value is the pressure value at which the water reaches the highest floor of the building when there is no water in the building; when the pressure data is lower than the pipeline pressure critical value, a start signal is sent to the water pump to make the pressure data reach the pipeline pressure critical value; when the pressure data is greater than or equal to the pipeline pressure critical value, the water pump state is kept unchanged.

[0115] In an embodiment of the present application, the control module is specifically used to send a start signal to the water pump to supply water when the judgment result indicates that there is water supply in the current water supply pipeline; and send a stop signal to the water pump to stop water supply when the judgment result indicates that there is no water supply in the current water supply pipeline.

[0116] The embodiments of the present application also provide corresponding devices and computer storage media for implementing the solutions provided by the embodiments of the present application.

[0117] The device includes a memory and a processor, the memory is used to store instructions or codes, and the processor is used to execute the instructions or codes so that the device executes the secondary water supply control method described in any embodiment of the present application.

[0118] The computer storage medium stores code, and when the code is executed, the device executing the code implements the secondary water supply control method described in any embodiment of the present application.

[0119] The "first" and "second" in the names such as "first" and "second" (if any) mentioned in the embodiments of this application are only used as name identifiers and do not represent the first or second in order.

[0120] Through the description of the above embodiments, it can be known that those skilled in the art can clearly understand that all or part of the steps in the above embodiment methods can be implemented by means of software plus a general hardware platform. Based on this understanding, the technical solution of the present application can be embodied in the form of a software product, which can be stored in a storage medium, such as a read-only memory (ROM) / RAM, a magnetic disk, an optical disk, etc., and includes a number of instructions for enabling a computer device (which can be a personal computer, a server, or a network communication device such as a router) to execute the methods described in each embodiment or certain parts of the embodiments of the present application.

[0121] Each embodiment in this specification is described in a progressive manner. The same or similar parts between the embodiments can be referred to each other. Each embodiment focuses on the differences from other embodiments. In particular, for the device embodiment, since it is basically similar to the method embodiment, the description is relatively simple. For the relevant parts, refer to the partial description of the method embodiment. Some or all of the modules can be selected according to actual needs to achieve the purpose of the embodiment. Those of ordinary skill in the art can understand and implement it without paying any creative work.

[0122] The above description is merely an exemplary embodiment of the present application and is not intended to limit the scope of protection of the present application.

Claims

1. A method for controlling secondary water supply, characterized in that: The method comprises: Obtaining pressure data and flow data in the water supply pipeline; the flow data at least includes real-time flow velocity data; Comparing the pressure data with a pressure setting value, wherein the pressure setting value is a pressure value in the water supply pipe when maintaining normal water use by users on the highest floor of the building; If the difference between the pressure data and the pressure setting value is greater than the pressure detection error value, it is determined that there is no water supply in the water supply pipeline; If the difference between the pressure data and the pressure setting value is less than or equal to the pressure detection error value, and the flow data also includes an accumulated flow signal, and / or the real-time flow rate data is greater than or equal to the flow rate setting value, it is determined that there is water supply in the current water supply pipe, and the flow rate integral accumulated value is cleared; wherein, the accumulated flow signal is a signal generated when the flow in the water supply pipe reaches a water supply flow threshold, and the water supply flow threshold is a water supply flow critical value for determining whether there is water supply in the water supply pipe; If no cumulative flow signal is obtained when acquiring the flow data, and the real-time flow rate data is less than the flow rate setting value, integrating and accumulating the real-time flow rate data to obtain a flow rate integral cumulative value, and the flow rate integral cumulative value is used to represent the water supply flow in the water supply pipe; Determine the current water supply status in the water supply pipeline based on the flow rate integral accumulated value and the water supply flow threshold. Provide secondary water supply service based on the judgment results.

2. The method according to claim 1, characterized in that The determining of the current water supply condition in the water supply pipe according to the flow velocity integral accumulated value and the water supply flow threshold value includes: If the flow rate integral accumulated value is greater than N times the water supply flow threshold, it is determined that there is water supply in the current water supply pipeline, and N is greater than 1; If the flow velocity integral accumulated value is less than or equal to N times the water supply flow threshold, it is determined that the current water supply situation in the water supply pipe has not changed.

3. The method according to claim 1 or 2, characterized in that The method further comprises: Determining whether the pressure data is lower than a critical pipe pressure value, the critical pipe pressure value being a pressure value at which water reaches the highest floor of a building when no water is used in the building; When the pressure data is lower than the pipeline pressure critical value, a start signal is sent to the water pump to make the pressure data reach the pipeline pressure critical value; When the pressure data is greater than or equal to the pipeline pressure critical value, the water pump state is kept unchanged.

4. The method according to claim 1 or 2, characterized in that The provision of secondary water supply services based on the judgment results includes: When the judgment result indicates that there is water supply in the water supply pipeline, a start signal is sent to the water pump to supply water; When the judgment result indicates that there is no water supply in the water supply pipeline, a stop signal is sent to the water pump to stop the water supply.

5. A secondary water supply control device, characterized in that: The device comprises: An acquisition module, configured to acquire pressure data and flow data in a water supply pipeline; the flow data at least includes real-time flow velocity data; a judgment module, configured to compare the pressure data with a pressure setting value, the pressure setting value being a pressure value in the water supply pipe when maintaining normal water use by users on the highest floor of the building; if the difference between the pressure data and the pressure setting value is greater than a pressure detection error value, determining that there is no water supply in the water supply pipe; and if the difference between the pressure data and the pressure setting value is less than or equal to the pressure detection error value, determining the current water supply condition in the water supply pipe based on the flow data; The current water supply condition in the water supply pipeline is determined based on the flow data, including: If the flow data also includes an accumulated flow signal, and / or the real-time flow rate data is greater than or equal to the flow rate setting value, it is determined that there is water supply in the current water supply pipe, and the accumulated flow rate integral value is cleared to zero; wherein the accumulated flow signal is a signal generated when the flow in the water supply pipe reaches a water supply flow threshold, and the water supply flow threshold is a critical value of the water supply flow for determining whether there is water supply in the water supply pipe; If no cumulative flow signal is obtained when acquiring the flow data, and the real-time flow rate data is less than the flow rate setting value, integrating and accumulating the real-time flow rate data to obtain a flow rate integral cumulative value, and the flow rate integral cumulative value is used to represent the water supply flow in the water supply pipe; Determining the current water supply condition in the water supply pipe according to the flow velocity integral accumulated value and the water supply flow threshold; The control module is used to provide secondary water supply service according to the judgment result.

6. A computer device, characterized in that: include: A memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the processor executes the computer program, the secondary water supply control method according to any one of claims 1 to 4 is implemented.

7. A computer storage medium, characterized in that The computer storage medium stores instructions, and when the instructions are executed on the terminal device, the terminal device executes the secondary water supply control method according to any one of claims 1 to 4.

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