Power supply system based on self-powered water meter

Abstract

The present disclosure provides a power supply system based on a self - generating water meter, relating to the technical field of power supply. The power supply system based on the self - generating water meter includes: a self - generating water meter; a power transmission control unit for controlling the transmission of the surplus power among the power generated by the self - generating water meter except the power required by the self - generating water meter; at least one external power - consuming system and corresponding batteries, controllers and inverters for each external power - consuming system; wherein, the power transmission control unit is used to transmit the surplus power to the batteries corresponding to each external power - consuming system according to the power consumption requirements of each external power - consuming system, so that when the external power - consuming system uses power, it obtains power from the corresponding battery in response to a control instruction issued by the controller of the external power - consuming system and converts the obtained power into alternating current for the external power - consuming system to use through an inverter. The present disclosure can avoid power waste.

Description

Background Art

[0002] As an instrument mainly used for measuring water flow, water meters are widely used in various water usage scenarios. With the integration of technologies, in order to enhance the intelligence of water meters, self-powered water meters have emerged after removing the external power supply of water meters.

[0003] In some scenarios, self-powered water meters may have the problem of excessive power generation, that is, the generated power is greater than their own power consumption requirements. In this case, the excess power will be wasted.

[0004] It should be noted that the information disclosed in the above background art section is only used to strengthen the understanding of the background of the present disclosure, and therefore may include information that does not constitute the prior art known to those of ordinary skill in the art. Summary of the Invention

[0005] The purpose of the present disclosure is to provide a power supply system based on a self-powered water meter, thereby at least to some extent overcoming the problem of resource waste caused by excessive power generation of the self-powered water meter.

[0006] According to a first aspect of the present disclosure, there is provided a power supply system based on a self-powered water meter, including: a self-powered water meter including a power generation module for generating electric energy by using the water flow in a water supply pipeline; wherein, the power generation module includes a water turbine, and the water turbine is the one with the best performance selected from multiple candidate water turbines through pre-modeling analysis of the multiple candidate water turbines. The structural parameters of each candidate water turbine are different, and the structural parameters of each candidate water turbine include one or more of the number of runner blades, the shape of runner blades, the height of runner blades, the inlet and outlet configuration of the runner, and the diameter size of the runner shaft; an electric energy transmission control unit for controlling the transmission of the remaining electric energy in the electric energy generated by the self-powered water meter except the electric energy required by the self-powered water meter; at least one external power consumption system and a battery, a controller, and an inverter corresponding to each external power consumption system; wherein, the electric energy transmission control unit is used to transmit the remaining electric energy to the battery corresponding to each external power consumption system according to the power consumption requirements of each external power consumption system, so that when the external power consumption system uses electricity, it obtains electric energy from the corresponding battery in response to a control instruction issued by the controller of the external power consumption system and converts the obtained electric energy into alternating current for use by the external power consumption system through an inverter.

[0007] Optionally, the process of the electric energy transmission control unit transmitting the remaining electric energy to the battery corresponding to each external power consumption system according to the power consumption requirements of each external power consumption system includes: obtaining the historical power consumption data of each external power consumption system; predicting the power consumption of each external power consumption system within a predetermined period in the future according to the historical power consumption data of each external power consumption system; and transmitting the remaining electric energy to the battery corresponding to each external power consumption system according to the prediction results of the power consumption of each external power consumption system.

[0008] Optionally, the electric energy transmission control unit is further configured to, when the total predicted power consumption of each external power consumption system is greater than the remaining electric energy, determine a first set of external power consumption systems whose power consumption demands can be met by the remaining electric energy from all external power consumption systems in the order of decreasing priority of the external power consumption systems; and transmit the remaining electric energy to the batteries corresponding to the external power consumption systems in the first set of external power consumption systems according to the power consumption demands.

[0009] Optionally, the set of external power consumption systems other than the first set of external power consumption systems among all external power consumption systems is the second set of external power consumption systems. For the target external power consumption system in the second set of external power consumption systems, the controller of the target external power consumption system sends a power demand instruction to the external power supply, so that the external power supply responds to the power demand instruction and transmits the electric energy required by the target external power consumption system to the battery corresponding to the target external power consumption system.

[0010] Optionally, the electric energy transmission control unit is further configured to, when the total predicted power consumption of each external power consumption system is less than the remaining electric energy, determine the difference between the remaining electric energy and the total predicted power consumption, determine one or more external loads from the external load library according to the difference, and feedback information about the one or more external loads, so that the one or more external loads are determined as new external power consumption systems in response to external power consumption system configuration operations.

[0011] Optionally, the electric energy transmission control unit is further configured to pre-respond to an external load entry operation to construct an external load library; wherein, the entry information corresponding to the external load entry operation includes the name of the external load, the type of the external load, the power consumption demand of the external load, the configuration cost of the external load, and the image of the external load.

[0012] Optionally, the electric energy transmission control unit is further configured to respond to the power shortage warning information of the self-generated power water meter to determine the adjustable power distribution stored in the batteries corresponding to each external power consumption system, screen out one or more feedbackable external power consumption systems that meet the power shortage demand of the self-generated power water meter from all external power consumption systems, and send a power acquisition instruction to the controllers corresponding to the feedbackable external power consumption systems, so that the controllers corresponding to the feedbackable external power consumption systems control the adjustable power distribution stored in the batteries corresponding to the feedbackable external power consumption systems to be transmitted to the battery of the self-generated power water meter.

[0013] Optionally, the power shortage warning information includes the shortage power. The adjustable power distribution stored in the battery corresponding to the external power consumption system is the power difference between the total power stored in the battery and the power demand of the external power consumption system. Among them, the process in which the power transmission control unit screens out one or more feedbackable external power consumption systems that meet the power shortage demand of the self - generating water meter from all external power consumption systems includes: scoring each external power consumption system according to the adjustable power distribution stored in the battery corresponding to each external power consumption system and the priority of each external power consumption system, and obtaining a sequence of external power consumption systems in descending order of the scores; determining one or more external power consumption systems that meet the shortage power from the sequence of external power consumption systems as the feedbackable external power consumption systems.

[0014] Optionally, the process in which the power transmission control unit scores each external power consumption system according to the adjustable power distribution stored in the battery corresponding to each external power consumption system and the priority of each external power consumption system, and obtains a sequence of external power consumption systems in descending order of the scores includes: determining a first weight corresponding to the adjustable power distribution and a second weight corresponding to the priority of the external power consumption system; the first weight is greater than the second weight; normalizing the adjustable power distribution stored in the battery corresponding to the external power consumption system, and multiplying the normalized result of the adjustable power distribution by the first weight to obtain a first score; normalizing the priority of the external power consumption system, and multiplying the normalized result of the priority by the second weight to obtain a second score; among them, the priority is negatively correlated with the second score; determining the sum of the first score and the second score as the score of the external power consumption system; sorting all external power consumption systems in descending order of the scores to obtain a sequence of external power consumption systems.

[0015] Optionally, the external power consumption system includes one or more of an irrigation system, a lighting system, an audio playback system, a video playback system, a wind control system, a temperature control system, a monitoring system, and an alarm system.

[0016] In the technical solutions provided by some embodiments of the present disclosure, on the one hand, through the construction of the power supply system of the present disclosure, the excess power generated by the self - generating water meter can be transmitted to the external power consumption system, solving the power supply problem for the systems other than the self - generating water meter while avoiding the waste of electric energy; on the other hand, the present disclosure scheme can improve the power generation efficiency of the self - generating water meter by modeling and analyzing the structure of the candidate water turbines to screen out the water turbine with the best performance and applying it to the power generation module of the self - generating water meter; on the other hand, the present disclosure scheme does not need to transform the external power consumption system, with low cost and strong universality of the application scenario.

[0017] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the present disclosure. Description of the Drawings

[0018] The accompanying drawings herein are incorporated into and constitute a part of this specification, showing embodiments consistent with the present disclosure, and are used together with the specification to explain the principles of the present disclosure. Obviously, the accompanying drawings in the following description are only some embodiments of the present disclosure, and those of ordinary skill in the art can obtain other drawings based on these drawings without creative efforts.

[0019] Figure 1 A schematic diagram of a scene of a power supply system for a self-powered water meter showing an exemplary embodiment of the present disclosure is shown.

[0020] Figure 2 A block diagram of a power supply system for a self-powered water meter showing an exemplary embodiment of the present disclosure is shown schematically.

[0021] Figure 3 A flowchart showing the process in which an electric energy transmission control unit of an embodiment of the present disclosure transmits surplus electric energy to a battery corresponding to an external power consumption system is shown schematically.

[0022] Figure 4 A schematic diagram showing a manner of electric energy transmission of the present disclosure taking an external power consumption system as an example is shown.

[0023] Figure 5 A block diagram of an electronic device showing an embodiment of the present disclosure is shown. Detailed Embodiments

[0024] Example embodiments will now be described more fully with reference to the accompanying drawings. However, the example embodiments can be implemented in various forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be more thorough and complete, and will fully convey the concept of the example embodiments to those skilled in the art. The features, structures, or characteristics described may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to give a thorough understanding of the embodiments of the present disclosure. However, those skilled in the art will realize that one or more of the specific details may be omitted in practicing the technical solutions of the present disclosure, or other methods, components, devices, steps, etc. may be adopted. In other cases, well-known technical solutions are not shown or described in detail to avoid obscuring various aspects of the present disclosure.

[0025] In addition, the accompanying drawings are only schematic illustrations of the present disclosure and are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and thus repeated descriptions thereof will be omitted. Some of the block diagrams shown in the drawings are functional entities and do not necessarily correspond to physically or logically independent entities. These functional entities may be implemented in software form, or in one or more hardware modules or integrated circuits, or in different networks and / or processor devices and / or microcontroller devices.

[0026] The flowcharts shown in the accompanying drawings are only exemplary illustrations and do not necessarily include all steps. For example, some steps can be decomposed, while some steps can be combined or partially combined. Therefore, the actual execution order may be changed according to the actual situation. In addition, all the following terms "first", "second", etc. are only for the purpose of distinction and should not be regarded as a limitation of the content of the present disclosure.

[0027] Figure 1 A schematic diagram of the scenario of the power supply system based on a self-generating water meter showing an exemplary embodiment of the present disclosure is schematically shown. Refer to Figure 1 , in the power supply system based on a self-generating water meter according to an embodiment of the present disclosure, the electric energy generated by the self-generating water meter can be transmitted to an external power consumption system, and the external power consumption system is a system independent of the self-generating water meter, such as including an irrigation system, a lighting system, an audio playback system, a video playback system, a wind control system, a temperature control system, a monitoring system, an alarm system, etc.

[0028] In addition, in the case where the electric energy generated by the self-generating water meter is not sufficient to provide the required electric energy for the self-generating water meter itself, the self-generating water meter can also obtain their additional electric energy from these external power consumption systems to maintain the power consumption requirements of the self-generating water meter itself.

[0029] Figure 2 A block diagram of the power supply system based on a self-generating water meter showing an exemplary embodiment of the present disclosure is schematically shown. Refer to Figure 2 , the power supply system based on a self-generating water meter according to an embodiment of the present disclosure may include a self-generating water meter, a power transmission control unit, at least one external power consumption system, and batteries, controllers, and inverters corresponding to each external power consumption system.

[0030] The self-generating water meter may include a power generation module, and the power generation module may be used to generate electric energy by using the water flow in the water supply pipeline. Specifically, the power generation module may include a water turbine, and the water turbine is the water turbine with the best performance selected from multiple candidate water turbines through pre-modeling analysis of the candidate water turbines, and the structural parameters of each candidate water turbine are different. Among them, the structural parameters of the candidate water turbine may include one or more of the number of runner blades, the shape of runner blades, the height of runner blades, the inlet and outlet configuration of the runner, and the diameter size of the runner shaft.

[0031] In an exemplary embodiment of the present disclosure, during the conversion process of converting the kinetic energy of water flow into electrical energy, it is achieved based on the basic principles of fluid mechanics and electromagnetism. When the water flow passes through the water turbine, the kinetic energy of the water flow drives the water turbine to rotate, and then drives the water turbine to generate electrical energy. This conversion process follows the law of conservation of energy and the law of conservation of momentum.

[0032] Among them, the water turbine can be a micro water turbine. The design and optimization process of this water turbine can be based on numerical simulation and simulation analysis of fluid mechanics. For example, through CFD (Computational Fluid Dynamics) simulation software, the flow field characteristics of the water turbine under different working conditions can be simulated, and then the structural parameters of the water turbine can be optimized to improve the energy conversion efficiency, and finally the water turbine for final application can be obtained.

[0033] According to some embodiments of the present disclosure, a micro water turbine suitable for the water flow conditions of the water supply pipeline can be selected as the water turbine, and the shape and number of runner blades can be optimized to improve the water flow conversion efficiency. The power generation module may further include a motor housing, a gear speed increasing unit, and a permanent magnet DC generator. Among them, the water inlet of the motor housing is in a horn shape to increase the water flow speed and is used to pressurize the water flow, so that the impeller of the water turbine arranged in the motor housing can obtain power to drive the permanent magnet DC generator when the water flow speed is low. The impeller can rotate around the axis under the drive of the water flow, and the axis is fixed on the bearing that supports the stable operation of the impeller. The gear speed increasing unit can be used to increase the rotation speed of the impeller to a speed suitable for the permanent magnet DC generator, so that the permanent magnet DC generator in the power generation module generates electricity. The rotation speed can be, for example, 1200 r / min to 1600 r / min.

[0034] For the power generation module, the motor housing and the impeller can be made of high-strength and corrosion-resistant materials to ensure stability and durability under long-term use. The permanent magnet DC generator can be prepared using permanent magnet materials to improve the power generation efficiency and output power. In addition, 3D modeling and precision machining design can be carried out using CAD / CAM software, and precision machining equipment can be used to machine components such as the motor housing, impeller, and gear speed increasing unit. Assemble and debug the permanent magnet DC generator to ensure stable and reliable power generation performance.

[0035] In some embodiments of the present disclosure, first, a candidate water turbine model can be constructed. Exemplarily, the water turbine blades of the reference water turbine can be thickened, the cross-section of the volute can be designed as a circle, and the volute and the fixed guide vanes can be designed as a whole, and a candidate water turbine model can be constructed according to the initial parameters.

[0036] Among them, the reference water turbine can be a model of a low-head Francis turbine. The blades of the reference water turbine can be reduced in size and thickened, and then the upper crown and lower ring can be designed to determine the candidate water turbine model. Exemplarily, when the pipe diameter of the water conveyance pipeline is 20 mm, the flow velocity is 1 m / s, and the pipeline network pressure is 0.2 MPa, the candidate water turbine model can be determined.

[0037] It should be noted that candidate water turbine models with different structural parameters can be determined in combination with the initial parameters, and simulation analysis can be carried out in combination with the initial parameters. The initial parameters can, for example, include one or more of the number of runner blades, the shape of the runner blades, the height of the runner blades, the inlet and outlet configurations of the runner, and the shaft diameter size of the runner. Among them, the inlet and outlet configurations of the runner can include one or more of the inlet width of the runner, the inlet height of the runner, and the outlet diameter of the runner, and the shaft diameter size of the runner can be the inlet angle of the stay vanes. In addition, the initial parameters can also include the flow rate.

[0038] After obtaining the candidate water turbine model, the flow field analysis of the candidate water turbine model can be carried out under different working conditions to achieve structural optimization and obtain the water turbine. Exemplarily, the constructed candidate water turbine model can be subjected to fluid domain extraction, boundary region naming, and mesh generation. The transient dynamic mesh is used to drive the movement and rotation of the candidate water turbine model by the water flow, and the rotation condition of the impeller under the impact of the water flow is calculated. The FLUENT steady-state calculation is used to calculate the data of the impeller under the stable rotation condition, and the calculation data is read and the energy output condition of the impeller is calculated to complete the flow field analysis of the candidate water turbine model for structural optimization. Among them, the calculation data can include the number of runner blades, the inlet height of the runner, the inlet width of the runner, the outlet diameter of the runner, the inlet angle of the stay vanes, the flow rate, and their respective reference data. The reference data can include data such as a circular volute, torque, rotational speed, pressure drop, head loss, efficiency, and power. Further, the power and efficiency in the reference data can be used as evaluation indicators to evaluate the performance of the candidate water turbine model, and each candidate water turbine model corresponds to each candidate water turbine. Further, the candidate water turbine model with the best performance is selected according to the power and efficiency, and it is used as the candidate water turbine with the best performance. The numerical values of the number of runner blades, the shape of the runner blades, the height of the runner blades, the inlet height of the runner, the inlet width of the runner, the outlet diameter of the runner, the installation angle of the stay vanes, and the flow rate of the candidate water turbine with the best performance are determined, and then the candidate water turbine with the best performance is determined as the water turbine.

[0039] Based on the analysis of the simulation results, it can be seen that the pressure distribution of the constructed water turbine is reasonable, the velocity vector is appropriate, there is no impact at the inlet, no separation at the outlet, the stagnation point distribution is reasonable, the surface pressure field on the front and back of the blade is relatively uniform, and the flow distribution between the blades is uniform.

[0040] Based on this, by analyzing parameters such as the number of runner blades, the shape of runner blades, the height of runner blades, the inlet height of the runner, the inlet width of the runner, the outlet diameter of the runner, the setting angle of the fixed guide vane, and the value of the flow rate, a water turbine can be established, thereby effectively controlling the rotational speed and load of the water turbine, improving the utilization coefficient of the water turbine, further enhancing the water flow conversion efficiency of the water turbine, and increasing the self-generation efficiency of the power generation module.

[0041] In addition, considering that the water flow velocity is unstable, the generated voltage of the permanent magnet DC generator is also unstable. Based on this, a rectifying and filtering circuit can be set in the power generation module. The rectifying and filtering circuit can include a bridge rectifying circuit composed of four rectifying diodes, and the output end of the bridge rectifying circuit is connected in parallel with a capacitor to achieve voltage stabilization and filtering. Among them, the capacitor can be a 1000, 50V capacitor. The rectifying and filtering circuit can be used to convert the unstable voltage output by the permanent magnet DC generator into a stable DC voltage. The rectifying and filtering circuit can include a bridge rectifying circuit and a filtering capacitor to ensure that the output voltage has small ripple and meets the power consumption requirements of the water meter.

[0042] It should be noted that when the water turbine is installed and operates in the water supply pipeline, it may cause fluctuations in the water supply pressure in the pipeline. If the self-powered water meter is sensitive to pressure changes, the water pressure fluctuations may cause deviations in the measurement data of the self-powered water meter, thus affecting the accuracy of the measurement data of the self-powered water meter. Based on this, the real-time measurement of the water consumption data in the water supply pipeline can be dynamically adjusted based on the compensation and correction method to ensure the accuracy of the water consumption data. For example, a measurement threshold can be determined based on historical measurement data, and the water consumption data can be corrected according to the measurement threshold, thereby realizing the dynamic adjustment of the water consumption data. In addition, the water consumption data can also be corrected by other methods, which are not specifically limited here.

[0043] In addition, the standard technical parameters of the water turbine can be compared with the experimental results of the water turbine. The water turbine constructed in the embodiments of the present disclosure meets the requirements for using it as an energy conversion. In the experiment, the water output at both ends of the water turbine was observed, and it was found that its influence on the water flow after being connected to the pipeline was not obvious, and the experiment achieved good results.

[0044] In addition to the power generation module, the self-powered water meter can also include a power generation energy storage module and a data processing module. Among them, the power generation energy storage module can be used to store the generated electric energy, and it can include a battery configured inside the self-powered water meter. The data processing module can analyze various data generated by the self-powered water meter and control the power supply of the self-powered water meter itself.

[0045] Reference Figure 2, the electric energy transmission control unit can be used to control the transmission of the surplus electric energy generated by the self - generating water meter except for the electric energy required by the self - generating water meter. Specifically, the electric energy transmission control unit can be used to transmit the surplus electric energy to the batteries corresponding to each external power - consuming system according to the power - consumption demands of each external power - consuming system, so that when the external power - consuming system uses electricity, it can obtain electric energy from the corresponding battery in response to the control instruction issued by the controller corresponding to the external power - consuming system and convert the obtained electric energy into alternating current for the external power - consuming system to use.

[0046] Figure 3 The flowchart schematically shows the process in which the electric energy transmission control unit of the embodiment of the present disclosure transmits the surplus electric energy to the battery corresponding to the external power - consuming system.

[0047] In step S32, the electric energy transmission control unit can obtain the historical power - consumption data of each external power - consuming system. For example, obtain the historical power - consumption data of each external power - consuming system for a period of time from the current time (such as, one week, one month, one quarter, etc.). Among them, the historical power - consumption data at least includes the power - consumption time period and the power consumption within the power - consumption time period.

[0048] In step S34, the electric energy transmission control unit can predict the power consumption of each external power - consuming system within a future predetermined time period according to the historical power - consumption data of each external power - consuming system.

[0049] In the exemplary embodiment of the present disclosure, the length of the future predetermined time period is not limited, and it can be, for example, three days, one week, one month, etc.

[0050] For the process of power - consumption prediction, according to some embodiments of the present disclosure, a Long Short - Term Memory (LSTM) network can be used to implement it.

[0051] First, the historical power - consumption data of multiple historical moments of the external power - consuming system can be obtained, and the power - consumption feature vectors of each historical moment can be determined according to the historical power - consumption data of each historical moment.

[0052] Specifically, multiple historical moments can be determined within a predetermined time period from the current time in history. For example, multiple historical moments can be determined within one month from the current time, or multiple historical moments can be determined within one quarter from the current time. The present disclosure does not limit this.

[0053] Next, for the first historical moment that is the farthest from the current time among these historical moments, the power - consumption feature vector corresponding to the first historical moment can be used as the input of the LSTM network for feature processing to obtain the power - consumption analysis result of the first historical moment.

[0054] In addition, for other historical moments except the first historical moment, specifically, for the m-th historical moment, where m is a positive integer greater than 1, the electricity consumption feature vector of the m-th historical moment and the electricity consumption analysis result of the (m - 1)-th historical moment can be used as the input of the LSTM network for feature processing to obtain the electricity consumption analysis result of the m-th historical moment.

[0055] Then, the fully connected layer can be used to comprehensively integrate the electricity consumption analysis results of each historical moment to obtain the predicted value of the electricity consumption of the future external power consumption system.

[0056] For example, first use the LSTM network to process the electricity consumption feature vector of the first historical moment to obtain the electricity consumption analysis result of the first historical moment, and then use the LSTM network to process the combined data of the electricity consumption analysis result of the first historical moment and the electricity consumption feature of the second historical moment to obtain the electricity consumption analysis result of the second historical moment, and so on, until the electricity consumption analysis results of all historical moments are determined. Subsequently, the fully connected layer can be used to integrate and analyze these results to determine the predicted value of the electricity consumption of the external power consumption system.

[0057] The present disclosure does not limit the specific network structure and training process of the above LSTM network.

[0058] In addition, the ARIMA model can also be used to predict the electricity consumption of each external power consumption system, and the present disclosure does not limit this.

[0059] In step S36, the remaining electric energy is delivered to the batteries corresponding to each external power consumption system according to the prediction results of the electricity consumption of each external power consumption system.

[0060] Priorities can be pre-configured for the external power consumption systems. The higher the priority, the higher the importance of the power consumption of the external power consumption system; the lower the priority, the lower the importance of the power consumption of the external power consumption system. For example, the priority of the lighting system is higher than that of the video playback system and lower than that of the irrigation system. In addition, it should be noted that the present disclosure does not specifically limit the configuration of priorities. It can be understood that the configuration of priorities will change according to the different specific application scenarios of the present disclosure solution.

[0061] In the case where the total predicted power consumption of each external power consumption system is greater than the remaining power in the electric energy generated by the above-mentioned self-generated power water meter except for the power required by the self-generated power water meter, first, the power transmission control unit can determine, in descending order of the external power consumption system priority, the external power consumption systems from all external power consumption systems that can meet the power consumption requirements with the remaining power. One or more external power consumption systems selected in this process form the first external power consumption system set mentioned in this disclosure. Next, the power transmission control unit can transmit the remaining power to the battery corresponding to each external power consumption system in the first external power consumption system set according to the power consumption requirements. It can be understood that the electric energy transmitted and stored in the battery is direct current.

[0062] According to some embodiments of the present disclosure, the set of external power consumption systems other than the first external power consumption system set among all external power consumption systems is determined as the second external power consumption system set. For the target external power consumption system in the second external power consumption system set, the controller of the target external power consumption system can send a power demand instruction to the external power source, so that the external power source responds to the power demand instruction and transmits the power required by the target external power consumption system to the battery corresponding to the target external power consumption system.

[0063] On the one hand, the above-mentioned target external power consumption system is any one of the external power consumption systems in the second external power consumption system set. On the other hand, the above-mentioned external power source is other power sources except the self-generated power water meter, and the present disclosure does not limit the form of the external power source. For example, it can be a mains power source, a power source formed by other power generation devices such as photovoltaic modules, etc.

[0064] In the case where the total predicted power consumption of each external power consumption system is less than the remaining power in the electric energy generated by the above-mentioned self-generated power water meter except for the power required by the self-generated power water meter, the power transmission control unit can determine the difference between the remaining power and the total predicted power consumption, determine one or more external loads from the external load library according to the difference, and feedback the information of the one or more external loads to the external power consumption system configuration end, so as to determine the one or more external loads as new external power consumption systems in response to the external power consumption system configuration operation. Thus, the electric energy corresponding to the above difference is transmitted to the new external power consumption system.

[0065] According to some embodiments of the present disclosure, after determining the difference between the remaining electric energy and the predicted total amount, the relationship between the difference and the electricity threshold can be judged. If the difference is greater than or equal to the electricity threshold, the operation of configuring the new external power consumption system is performed. If the difference is less than the electricity threshold, it indicates that the remaining electric energy is less and cannot continue to support the power supply requirements of other systems. In this case, no operation can be performed, or the electric energy corresponding to the difference can be evenly distributed to the batteries corresponding to the existing external power consumption systems. The present disclosure does not limit the determination of the electricity threshold. For example, it can be the power consumption demand of the external load with the smallest power consumption demand among the external loads.

[0066] For the above external load library, it can be constructed in advance. Specifically, the electric energy transmission control unit can also construct the external load library in response to the external load entry operation in advance. The entry information corresponding to the external load entry operation can include, but is not limited to, the name of the external load, the type of the external load, the power consumption demand of the external load, the configuration cost of the external load, and the image of the external load.

[0067] In view of the situation where the self-generated electricity water meter may generate insufficient electric energy in some embodiments of the present disclosure, the present disclosure also provides a relatively reverse electric energy transmission control scheme.

[0068] When the electric energy generated by the self-generated electricity water meter is insufficient to supply its own power consumption demand, the self-generated electricity water meter can send an electric energy shortage warning message to the electric energy transmission control unit. The electric energy transmission control unit can determine the adjustable power distribution amount stored in the batteries corresponding to each external power consumption system in response to the electric energy shortage warning message, screen out one or more feedbackable external power consumption systems that meet the electric energy shortage demand of the self-generated electricity water meter from all external power consumption systems, and send an electric energy acquisition instruction to the controller corresponding to the feedbackable external power consumption system, so that the controller corresponding to the feedbackable external power consumption system controls the adjustable power distribution amount stored in the battery corresponding to the feedbackable external power consumption system to be transmitted to the battery of the self-generated electricity water meter.

[0069] Specifically, the above electric energy shortage warning message can include the shortage electric quantity, that is, the electric quantity that the self-generated electricity water meter needs to obtain from the outside to maintain its own power supply. The adjustable power distribution amount stored in the battery corresponding to the external power consumption system is the electric quantity difference between the total electric quantity stored in the battery and the power consumption demand of the external power consumption system.

[0070] According to some embodiments of the present disclosure, the process of the electric energy transmission control unit screening out one or more feedbackable external power consumption systems that meet the electric energy shortage demand of the self-generated electricity water meter from all external power consumption systems can include: the electric energy transmission control unit can score each external power consumption system according to the adjustable power distribution amount stored in the battery corresponding to each external power consumption system and the priority of each external power consumption system, and obtain a sequence of external power consumption systems in descending order of the score.

[0071] Specifically, first, the power transmission control unit can determine a first weight corresponding to the adjustable power distribution amount and a second weight corresponding to the priority of the external power consumption system. The first weight and the second weight can be pre-configured, and the first weight can be greater than the second weight. The present disclosure does not limit their specific values.

[0072] Next, on the one hand, the power transmission control unit can normalize the adjustable power distribution amount stored in the battery corresponding to the external power consumption system, and multiply the result of the normalization of the adjustable power distribution amount by the first weight to obtain a first score. On the other hand, the power transmission control unit can normalize the priority of the external power consumption system, and multiply the result of the normalization of the priority by the second weight to obtain a second score; wherein, the priority is negatively correlated with the second score, that is to say, the higher the priority, the more important the power consumption situation of the external power consumption system. When considering dividing the power from its corresponding battery, less power should be divided. In terms of data processing, the corresponding score is lower. The lower the priority, the less important the power consumption situation of the external power consumption system. When considering dividing the power from its corresponding battery, more power can be divided. In terms of data processing, the corresponding score is higher.

[0073] Then, when the first score and the second score are determined, the power transmission control unit can determine the sum of the first score and the second score as the score of the external power consumption system.

[0074] Subsequently, the power transmission control unit can sort all external power consumption systems in descending order of the score to obtain an external power consumption system sequence.

[0075] After determining the external power consumption system sequence, the power transmission control unit can determine one or more external power consumption systems that meet the above-mentioned shortage of power from the external power consumption system sequence as the feedback external power consumption systems, thereby realizing the feedback process of the power stored in the batteries corresponding to the external power consumption systems being transported to the battery of the self-generated power water meter.

[0076] Figure 4 Shows a schematic diagram of the power transmission method of the present disclosure taking one external power consumption system as an example. Refer to Figure 4 , on the one hand, the power generated by the self-generated power water meter can be transported to the battery corresponding to the external power consumption system based on the control action of the power transmission control unit. On the other hand, the power stored in the battery corresponding to the external power consumption system can also be transported to the battery of the self-generated power water meter based on the reverse control action of the power transmission control unit. Thus, the flexible complementarity of power is realized, and the utilization efficiency of power is improved.

[0077] In an exemplary embodiment of the present disclosure, there is also provided a computer-readable storage medium, on which a program product is stored that can at least implement the method executed by the above power transmission control unit. In some possible implementation manners, various aspects of the present disclosure can also be implemented in the form of a program product, which includes program code. When the program product runs on a terminal device, the program code is used to cause the terminal device to execute the steps according to various exemplary embodiments of the present disclosure described in the above processing procedure.

[0078] The program product for implementing the above solution according to the embodiments of the present disclosure can be a portable compact disc read-only memory (CD-ROM) and includes program code, and can run on a terminal device, such as a personal computer. However, the program product of the present disclosure is not limited to this. In this document, the readable storage medium can be any tangible medium that contains or stores a program, and this program can be used by or combined with an instruction execution system, apparatus, or device.

[0079] The program product can adopt any combination of one or more readable media. The readable media can be a readable signal medium or a readable storage medium. The readable storage medium can be, for example, but not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination of the above. More specific examples (non-exhaustive list) of the readable storage medium include: an electrical connection having one or more wires, a portable disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical disc, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the above.

[0080] The computer-readable signal medium can include a data signal propagated in a baseband or as part of a carrier wave, in which the readable program code is carried. Such a propagated data signal can take various forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination of the above. The readable signal medium can also be any readable medium other than the readable storage medium, and this readable medium can send, propagate, or transmit a program for use by or combined with an instruction execution system, apparatus, or device.

[0081] The program code contained on the readable medium can be transmitted by any suitable medium, including but not limited to wireless, wired, optical fiber, RF, etc., or any suitable combination of the above.

[0082] Program code for performing the operations of the present disclosure can be written in any combination of one or more programming languages, including object-oriented programming languages such as Java, C++, etc., and also including conventional procedural programming languages such as the "C" language or similar programming languages. The program code can be executed entirely on the user computing device, partially on the user device, executed as a stand-alone software package, partially on the user computing device and partially on a remote computing device, or entirely on a remote computing device or server. In cases involving a remote computing device, the remote computing device can be connected to the user computing device through any type of network, including a local area network (LAN) or a wide area network (WAN), or, it can be connected to an external computing device (e.g., by connecting through the Internet using an Internet service provider).

[0083] In an exemplary embodiment of the present disclosure, an electronic device capable of implementing the functions of the above-mentioned power transmission control unit is also provided. In some embodiments, the above-mentioned power transmission control unit can be configured in the form of the following electronic device.

[0084] Those skilled in the art can understand that various aspects of the present disclosure can be implemented as a system, method, or program product. Therefore, various aspects of the present disclosure can be specifically implemented in the following forms, namely: a complete hardware implementation, a complete software implementation (including firmware, microcode, etc.), or an implementation combining hardware and software aspects, which can be collectively referred to herein as "circuit", "module", or "system".

[0085] Next, refer to Figure 5 to describe the electronic device 500 according to this embodiment of the present disclosure. Figure 5 The shown electronic device 500 is merely an example and should not impose any limitations on the functions and usage scope of the embodiments of the present disclosure.

[0086] As Figure 5 shown, the electronic device 500 is presented in the form of a general-purpose computing device. The components of the electronic device 500 can include but are not limited to: the above-mentioned at least one processing unit 510, the above-mentioned at least one storage unit 520, a bus 530 connecting different system components (including the storage unit 520 and the processing unit 510), and a display unit 540.

[0087] Among them, the storage unit stores program code, and the program code can be executed by the processing unit 510, so that the processing unit 510 executes the steps according to various exemplary embodiments of the present disclosure described in the above solution. For example, the processing unit 510 can execute each step executed by the power transmission control unit of the embodiment of the present disclosure.

[0088] The storage unit 520 may include a readable medium in the form of a volatile storage unit, such as a random access storage unit (RAM) 5201 and / or a cache storage unit 5202, and may further include a read-only storage unit (ROM) 5203.

[0089] The storage unit 520 may also include a program / utilities 5204 having a set (at least one) of program modules 5205. Such program modules 5205 include, but are not limited to: an operating system, one or more application programs, other program modules, and program data. Each or some combination of these examples may include an implementation of a network environment.

[0090] The bus 530 may represent one or more of several types of bus structures, including a memory bus or memory controller, a peripheral bus, an accelerated graphics port, a processing unit, or a local bus using any of a variety of bus structures.

[0091] The electronic device 500 may also communicate with one or more external devices 600 (such as a keyboard, a pointing device, a Bluetooth device, etc.), may also communicate with one or more devices that enable a user to interact with the electronic device 500, and / or may communicate with any device that enables the electronic device 500 to communicate with one or more other computing devices (such as a router, a modem, etc.). Such communication may be through an input / output (I / O) interface 550. Also, the electronic device 500 may communicate with one or more networks (such as a local area network (LAN), a wide area network (WAN), and / or a public network, such as the Internet) through a network adapter 560. As shown in the figure, the network adapter 560 communicates with other modules of the electronic device 500 through the bus 530. It should be understood that, although not shown in the figure, other hardware and / or software modules may be used in conjunction with the electronic device 500, including but not limited to: microcode, device drivers, redundant processing units, external disk drive arrays, RAID systems, tape drives, and data backup storage systems, etc.

[0092] Through the description of the above embodiments, those skilled in the art can easily understand that the example embodiments described herein can be implemented by software or by a combination of software and necessary hardware. Therefore, the technical solutions according to the embodiments of the present disclosure can be embodied in the form of a software product, which can be stored in a non-volatile storage medium (which can be a CD-ROM, a USB flash drive, a mobile hard disk, etc.) or on a network, including several instructions to enable a computing device (which can be a personal computer, a server, a terminal device, or a network device, etc.) to execute the solutions according to the embodiments of the present disclosure.

[0093] In addition, the above-mentioned drawings are only schematic illustrations of the processes included in the solutions according to the exemplary embodiments of the present disclosure, rather than for limiting purposes. It is easily understood that the processes shown in the above-mentioned drawings do not indicate or limit the chronological order of these processes. Additionally, it is also easily understood that these processes can be executed, for example, synchronously or asynchronously in multiple modules.

[0094] It should be noted that although several modules or units of the device for action execution are mentioned in the above detailed description, such a division is not mandatory. In fact, according to the embodiments of the present disclosure, the features and functions of two or more of the above-mentioned modules or units can be embodied in one module or unit. Conversely, the features and functions of one module or unit described above can be further divided and embodied by multiple modules or units.

[0095] Those skilled in the art will readily conceive of other embodiments of the present disclosure after considering the specification and practicing the content disclosed herein. This application is intended to cover any variations, uses, or adaptations of the present disclosure, which follow the general principles of the present disclosure and include well-known common general knowledge or conventional technical means in the technical field not disclosed by the present disclosure. The specification and embodiments are only regarded as exemplary, and the true scope and spirit of the present disclosure are pointed out by the claims.

[0096] It should be understood that the present disclosure is not limited to the exact structures already described and shown in the drawings, and various modifications and changes can be made without departing from its scope. The scope of the present disclosure is only limited by the appended claims.

Claims

1. A power supply system based on a self-powered water meter, characterized in that, Comprising: A self - generating water meter, including a power generation module, where the power generation module is used to generate electric energy by utilizing the water flow in the water supply pipeline; among them, the power generation module includes a water turbine, and the water turbine is the one with the best performance selected from multiple candidate water turbines through pre - modeling and analysis of the multiple candidate water turbines. The structural parameters of each candidate water turbine are different, and the structural parameters of each candidate water turbine include one or more of the number of runner blades, the shape of runner blades, the height of runner blades, the inlet and outlet configurations of the runner, and the shaft diameter size of the runner. An electric energy transmission control unit, which is used to control the transmission of the remaining electric energy in the electric energy generated by the self - generating water meter except for the electric energy required by the self - generating water meter. At least one external power - consuming system and a battery, a controller, and an inverter corresponding to each external power - consuming system. Among them, the electric energy transmission control unit is used to deliver the remaining electric energy to the batteries corresponding to each external power - consuming system according to the power consumption requirements of each external power - consuming system, so that when the external power - consuming system uses electricity, it obtains electric energy from the corresponding battery in response to a control instruction issued by the controller of the external power - consuming system and converts the obtained electric energy into alternating current for the external power - consuming system to use through the inverter. The electric energy transmission control unit is also used to respond to the power shortage warning information of the self - generating water meter to determine the adjustable power distribution amount stored in the battery corresponding to each external power - consuming system. The power shortage warning information includes the shortage of electric energy, and the adjustable power distribution amount stored in the battery corresponding to the external power - consuming system is the power difference between the total power stored in the battery and the power consumption demand of the external power - consuming system; score each external power - consuming system according to the adjustable power distribution amount stored in the battery corresponding to each external power - consuming system and the priority of each external power - consuming system, obtain an external power - consuming system sequence in descending order of the score, and determine one or more external power - consuming systems that meet the shortage of electric energy as the feedback - capable external power - consuming systems from the external power - consuming system sequence; send an electric energy acquisition instruction to the controller corresponding to the feedback - capable external power - consuming system, so that the controller corresponding to the feedback - capable external power - consuming system controls the adjustable power distribution amount stored in the battery corresponding to the feedback - capable external power - consuming system to be delivered to the battery of the self - generating water meter.

2. The power supply system according to claim 1, characterized in that, The process by which the electric energy transmission control unit delivers the remaining electric energy to the batteries corresponding to each external power - consuming system according to the power consumption requirements of each external power - consuming system includes: Obtaining the historical power consumption data of each external power - consuming system. Predicting the power consumption of each external power - consuming system within a predetermined future time period according to the historical power consumption data of each external power - consuming system. Delivering the remaining electric energy to the batteries corresponding to each external power - consuming system according to the prediction results of the power consumption of each external power - consuming system.

3. The power supply system according to claim 2, wherein The power transmission control unit is also configured to, when the total predicted power consumption of each of the external power consumption systems is greater than the remaining power, determine a first set of external power consumption systems from all the external power consumption systems that can meet the power consumption requirements with the remaining power in the order of decreasing priority of the external power consumption systems; Transmit the remaining power to the batteries corresponding to the external power consumption systems in the first set of external power consumption systems according to the power consumption requirements.

4. The power supply system according to claim 3, characterized in that, A set of external power consumption systems other than the first set of external power consumption systems among all the external power consumption systems forms a second set of external power consumption systems. For a target external power consumption system in the second set of external power consumption systems, the controller of the target external power consumption system sends a power demand instruction to an external power source so that the external power source responds to the power demand instruction and transmits the power required by the target external power consumption system to the battery corresponding to the target external power consumption system.

5. The power supply system according to claim 2, 3 or 4, characterized in that, The power transmission control unit is also configured to, when the total predicted power consumption of each of the external power consumption systems is less than the remaining power, determine the difference between the remaining power and the total predicted power consumption, determine one or more external loads from an external load library according to the difference, and feedback the information of the one or more external loads so that the one or more external loads are determined as new external power consumption systems in response to an external power consumption system configuration operation.

6. The power supply system according to claim 5, wherein The power transmission control unit is also configured to pre-respond to an external load entry operation to construct the external load library; Among them, the entry information corresponding to the external load entry operation includes the name of the external load, the type of the external load, the power consumption requirements of the external load, the configuration cost of the external load, and the image of the external load.

7. The power supply system according to claim 1, characterized in that The process of the power transmission control unit scoring each of the external power consumption systems according to the adjustable power distribution stored in the batteries corresponding to the external power consumption systems and the priority of each of the external power consumption systems, and obtaining a sequence of external power consumption systems in the order of decreasing score includes: Determine a first weight corresponding to the adjustable power distribution and a second weight corresponding to the priority of the external power consumption system; the first weight is greater than the second weight; Perform normalization processing on the adjustable power distribution stored in the battery corresponding to the external power consumption system, and multiply the result of the normalized adjustable power distribution by the first weight to obtain a first score; Perform normalization processing on the priority of the external power consumption system, and multiply the result of the normalized priority by the second weight to obtain a second score; among them, the priority is negatively correlated with the second score; Determine the sum of the first score and the second score as the score of the external power consumption system; Sort all the external power consumption systems in the order of decreasing score to obtain a sequence of external power consumption systems.

8. The power supply system according to claim 1, wherein The external power consumption system includes one or more of an irrigation system, a lighting system, an audio playback system, a video playback system, a wind control system, a temperature control system, a monitoring system, and an alarm system.

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