Power supply system based on self-generating water meter

Abstract

The invention provides a power supply system based on a self-generating water meter, and relates to the technical field of power supply. The power supply system based on the self-generating water meter comprises the self-generating water meter; the electric energy transmission control unit is used for carrying out transmission control on residual electric energy, except the electric energy required by the self-power-generation water meter, in the electric energy generated by the self-power-generation water meter; the batteries, the controllers and the inverters correspond to the external power utilization systems; wherein the electric energy transmission control unit is used for transmitting the residual electric energy to the batteries corresponding to the external power utilization systems according to the power utilization requirements of the external power utilization systems, so that when the external power utilization systems use power, the residual electric energy is transmitted to the batteries corresponding to the external power utilization systems; in response to a control instruction sent by a controller of the external power utilization system, electric energy is obtained from the corresponding battery, and the obtained electric energy is converted into alternating current through the inverter to be used by the external power utilization system. Electric energy waste can be avoided.

Description

Background Art

[0002] As an instrument mainly used to measure water flow, water meters are widely used in various water use scenarios. With the integration of technologies, in order to enhance the intelligence of water meters, the external power supply of water meters is removed, and self-generating water meters come into being.

[0003] In some scenarios, self-generating water meters may have a problem of overgeneration, that is, their power generation is greater than their own electricity demand. In this case, the excess electricity will be wasted.

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

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

[0006] According to a first aspect of the present disclosure, a power supply system based on a self-generating water meter is provided, comprising: a self-generating water meter, comprising a power generation module, the power generation module being used to generate electric energy by utilizing water flow in a water supply pipe; wherein the power generation module comprises a water turbine, the water turbine being a water turbine with the best performance selected from a plurality of candidate water turbines by pre-modeling and analyzing a plurality of candidate water turbines, the structural parameters of each candidate water turbine being different, and the structural parameters of each candidate water turbine comprising one or more of the number of runner blades, the shape of the runner blades, the height of the runner blades, the configuration of the runner inlet and outlet, and the size of the runner shaft diameter; and electric energy transmission control A unit for controlling the transmission of the remaining electric energy generated by the self-generated water meter except the electric energy required by the self-generated water meter; at least one external power system and a battery, a controller and an inverter corresponding to each external power system; wherein the power transmission control unit is used to transmit the remaining electric energy to the battery corresponding to each external power system according to the power demand of each external power system, so that when the external power system uses electricity, it responds to the control instruction issued by the controller of the external power system to obtain electric energy from the corresponding battery and convert the obtained electric energy into alternating current through the inverter for use by the external power system.

[0007] Optionally, the process by which the power transmission control unit transmits surplus power to the batteries corresponding to each external power system according to the power consumption demand of each external power system includes: acquiring historical power consumption data of each external power system; predicting the power consumption of each external power system within a predetermined time period in the future based on the historical power consumption data of each external power system; and transmitting the surplus power to the batteries corresponding to each external power system based on the predicted results of the power consumption of each external power system.

[0008] Optionally, the power transmission control unit is also used to determine, from all external power systems in descending order of priority of the external power systems, a first set of external power systems whose remaining power can meet the power demand when the predicted total power consumption of each external power system is greater than the remaining power; and to transmit the remaining power to the batteries corresponding to each external power system in the first set of external power systems according to the power demand.

[0009] Optionally, a set of all external power systems except the first external power system set is a second external power system set. For a target external power system in the second external power system set, a controller of the target external power system sends a power demand instruction to an external power supply, so that the external power supply responds to the power demand instruction and delivers the power required by the target external power system to a battery corresponding to the target external power system.

[0010] Optionally, the power transmission control unit is also used to determine the difference between the remaining power and the predicted total power consumption when the predicted total power consumption of each external power system is less than the remaining power, determine one or more external loads from the external load library based on the difference, and provide feedback on the information of the one or more external loads so as to determine the one or more external loads as new external power systems in response to the external power system configuration operation.

[0011] Optionally, the power transmission control unit is also used to pre-respond to an external load entry operation to build 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 demand of the external load, the configuration cost of the external load, and the image of the external load.

[0012] Optionally, the power transmission control unit is also used to respond to the power shortage alarm information of the self-generating water meter to determine the adjustable power stored in the batteries corresponding to each external power system, screen out one or more feedback external power systems that meet the power shortage needs of the self-generating water meter from all external power systems, and send a power acquisition instruction to the controller corresponding to the feedback external power system, so that the controller corresponding to the feedback external power system controls the adjustable power stored in the battery corresponding to the feedback external power system to be transmitted to the battery of the self-generating water meter.

[0013] Optionally, the power shortage alarm information includes power shortage, and the adjustable power stored in the battery corresponding to the external power system is the difference between the total power stored in the battery and the power demand of the external power system; wherein, the process of the power transmission control unit screening out one or more external power systems that can be fed back to meet the power shortage demand of the self-generating water meter from all external power systems includes: scoring each external power system according to the adjustable power stored in the battery corresponding to each external power system and the priority of each external power system, and obtaining a sequence of external power systems in order of the scores from high to low; and determining one or more external power systems that meet the power shortage from the external power system sequence as the external power systems that can be fed back.

[0014] Optionally, the power transmission control unit scores each external power system according to the adjustable power stored in the battery corresponding to each external power system and the priority of each external power system, and the process of obtaining the external power system sequence in order of scores from high to low includes: determining a first weight corresponding to the adjustable power and a second weight corresponding to the priority of the external power system; the first weight is greater than the second weight; normalizing the adjustable power stored in the battery corresponding to the external power system, and multiplying the normalized adjustable power by the first weight to obtain a first score; normalizing the priority of the external power system, and multiplying the normalized priority by the second weight to obtain a second score; wherein 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 system; and sorting all external power systems in order of scores from high to low to obtain a sequence of external power systems.

[0015] Optionally, the external power 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 in some embodiments of the present disclosure, on the one hand, through the construction of the power supply system of the present disclosure, the excess electricity generated by the self-generating water meter can be transmitted to the external power consumption system, thereby solving the power supply problem for systems other than the self-generating water meter and avoiding the waste of electric energy; on the other hand, the solution of the present disclosure screens out the best-performing turbine for application in the power generation module of the self-generating water meter by modeling and analyzing the structure of the candidate turbines, thereby improving the power generation efficiency of the self-generating water meter; on yet another hand, the solution of the present disclosure does not require modification of the external power consumption system, has low cost and strong universality of application scenarios.

[0017] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings herein are incorporated into the specification and constitute a part of the specification, illustrate embodiments consistent with the present disclosure, and together with the specification are used to explain the principles of the present disclosure. Obviously, the accompanying drawings described below are only some embodiments of the present disclosure, and for ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without creative work.

[0019] Figure 1 A schematic diagram of a scenario of a power supply system based on a self-generating water meter according to an exemplary embodiment of the present disclosure is schematically shown.

[0020] Figure 2 A block diagram of a power supply system based on a self-generating water meter according to an exemplary embodiment of the present disclosure is schematically shown.

[0021] Figure 3 The flowchart schematically shows a process in which the power transmission control unit of the embodiment of the present disclosure transmits the remaining power to the battery corresponding to the external power consumption system.

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

[0023] Figure 5 A block diagram of an electronic device according to an embodiment of the present disclosure is shown. DETAILED DESCRIPTION

[0024] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in a variety of forms and should not be construed as being limited to the examples set forth herein; on the contrary, these embodiments are provided so that the present disclosure will be more comprehensive and complete, and the concepts of the example embodiments are fully conveyed to those skilled in the art. The described features, structures, or characteristics may be combined in one or more embodiments in any suitable manner. In the following description, many specific details are provided to provide a full understanding of the embodiments of the present disclosure. However, those skilled in the art will appreciate that the technical solutions of the present disclosure may be practiced while omitting one or more of the specific details, or other methods, components, devices, steps, etc. may be adopted. In other cases, 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 figures represent the same or similar parts, and their repeated description will be omitted. Some of the block diagrams shown in the accompanying drawings are functional entities and do not necessarily correspond to physically or logically independent entities. These functional entities can be implemented in software form, or implemented in one or more hardware modules or integrated circuits, or implemented in different networks and / or processor devices and / or microcontroller devices.

[0026] The flowcharts shown in the accompanying drawings are only exemplary and do not necessarily include all the steps. For example, some steps may be decomposed, while some steps may be combined or partially combined, so the actual execution order may change according to the actual situation. In addition, all the terms "first", "second", etc. below are only for the purpose of distinction and should not be used as limitations of the present disclosure.

[0027] Figure 1 The schematic diagram schematically shows a scenario of a power supply system based on a self-generating water meter according to an exemplary embodiment of the present disclosure. Figure 1 In the power supply system based on the self-generating water meter in the embodiment of the present invention, the electric energy generated by the self-generating water meter can be transmitted to the external power consumption system, which is a system independent of the self-generating water meter, such as 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, when the electricity generated by the self-generating water meter is not enough to provide the required electricity for the self-generating water meter itself, the self-generating water meter can also obtain their additional electricity from these external power systems to maintain the self-generating water meter's own electricity needs.

[0029] Figure 2 Schematically shows a block diagram of a power supply system based on a self-generating water meter according to an exemplary embodiment of the present disclosure. Figure 2 The power supply system based on the self-generating water meter of the embodiment of the present disclosure may include a self-generating water meter, an electric energy transmission control unit, at least one external power consumption system, and a battery, a controller and an inverter corresponding to each external power consumption system.

[0030] The self-generating water meter may include a power generation module, which can be used to generate electricity using water flow in a water supply pipe. Specifically, the power generation module may include a turbine, which is a turbine with the best performance selected from a plurality of candidate turbines by modeling and analyzing them in advance, and the structural parameters of each candidate turbine are different. The structural parameters of the candidate turbine may include one or more of the number of runner blades, the shape of the runner blades, the height of the runner blades, the configuration of the runner inlet and outlet, and the diameter of the runner shaft.

[0031] In the exemplary embodiment of the present disclosure, the process of converting the kinetic energy of water into electrical energy is realized based on the basic principles of fluid mechanics and electromagnetism. When water flows through a water turbine, the kinetic energy of the water flow drives the water turbine to rotate, thereby driving the water turbine to generate electrical energy. The conversion process follows the law of conservation of energy and the law of conservation of momentum.

[0032] The water turbine may be a micro-turbine, and the design and optimization process of the water turbine may be based on numerical simulation and simulation analysis of fluid mechanics. For example, CFD (Computational Fluid Dynamics) simulation software may be used to simulate the flow field characteristics of the water turbine under different working conditions, thereby optimizing the structural parameters of the water turbine, improving the energy conversion efficiency, and obtaining the water turbine for final application.

[0033] According to some embodiments of the present disclosure, a micro-turbine suitable for the water flow conditions of the water supply pipeline can be selected as a water turbine, and the shape and number of the runner blades can be optimized to improve the water flow conversion efficiency. The power generation module may also include a motor housing, a gear speed increase unit and a permanent magnet DC generator. Among them, the water inlet of the motor housing is trumpet-shaped, which increases the water flow velocity and is used to pressurize the water flow, so that when the water flow velocity is low, the impeller of the water turbine arranged in the motor housing can obtain power to drive the permanent magnet DC generator. 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 increase unit can be used to increase the 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 speed can be, for example, 1200r / min to 1600r / min.

[0034] For the power generation module, the motor housing and impeller can be made of high-strength, corrosion-resistant materials to ensure stability and durability under long-term use. The permanent magnet DC generator can be made of permanent magnet materials to improve power generation efficiency and output power. In addition, CAD / CAM software can be used for three-dimensional modeling and precision machining design, and precision machining equipment can be used to process motor housings, impellers, gear speed increase units and other parts. The permanent magnet DC generator is assembled and debugged to ensure stable and reliable power generation performance.

[0035] In some embodiments of the present disclosure, first, a candidate turbine model may be constructed. For example, the turbine blades of a reference turbine may be thickened, the volute section may be designed to be circular, and the volute and the fixed guide vanes may be designed as one, and the candidate turbine model may be constructed according to initial parameters.

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

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

[0038] After obtaining the candidate turbine model, the candidate turbine model can be subjected to flow field analysis under different working conditions to achieve structural optimization and obtain a turbine. Exemplarily, the constructed candidate turbine model can be subjected to fluid domain extraction, boundary region naming and meshing, and the transient dynamic mesh is used to drive the motion and rotation of the candidate turbine model by the water flow, and the rotation of the impeller under the impact of the water flow is calculated. The calculation data of the impeller under stable rotation is calculated using FLUENT steady state, the calculation data is read and the energy output of the impeller is calculated, and the flow field analysis of the candidate turbine model is completed for structural optimization. Among them, the calculation data may include the number of runner blades, the runner inlet height, the runner inlet width, the runner outlet diameter, the fixed guide vane inlet angle, the flow rate and the corresponding reference data. The reference data may include circular volute, torque, speed, pressure drop, head loss, efficiency, power and other data. Further, the power and efficiency in the reference data can be used as evaluation indicators to evaluate the performance of the candidate turbine model, and each candidate turbine model corresponds to each candidate turbine. Furthermore, a candidate turbine model with the best performance is selected according to power and efficiency to be used as the candidate turbine with the best performance, and the numerical values ​​of the number of runner blades, runner blade shape, runner blade height, runner inlet height, runner inlet width, runner outlet diameter, fixed guide vane placement angle, and flow rate of the candidate turbine with the best performance are determined, and then the candidate turbine with the best performance is determined as the turbine.

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

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

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

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

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

[0044] In addition to the power generation module, the self-generating water meter may also include a power generation and energy storage module and a data processing module. The power generation and energy storage module may be used to store the generated electrical energy, and may include a battery configured in the self-generating water meter. The data processing module may analyze various data generated by the self-generating water meter and control the power supply of the self-generating water meter itself.

[0045] refer to Figure 2The power transmission control unit can be used to control the transmission of the remaining power generated by the self-generated water meter except the power required by the self-generated water meter. Specifically, the power transmission control unit can be used to transmit the remaining power to the batteries corresponding to each external power system according to the power demand of each external power system, so that when the external power system uses power, it responds to the control instruction issued by the controller corresponding to the external power system to obtain power from the corresponding battery and convert the obtained power into AC power through the inverter for use by the external power system.

[0046] Figure 3 The flowchart schematically shows a process in which the power transmission control unit of the embodiment of the present disclosure transmits the remaining power to the battery corresponding to the external power consumption system.

[0047] In step S32, the power transmission control unit may obtain historical power consumption data of each external power consumption system. For example, historical power consumption data of each external power consumption system within a period of time (such as one week, one month, one quarter, etc.) from the current time may be obtained. 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 power transmission control unit may predict the power consumption of each external power system within a predetermined time period in the future according to the historical power consumption data of each external power system.

[0049] In the exemplary embodiment of the present disclosure, the present disclosure does not limit the length of the future predetermined time period, which may 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 may be used to implement it.

[0051] First, historical power consumption data of the external power consumption system at multiple historical moments may be obtained, and the power consumption feature vector at each historical moment may be determined based on the historical power consumption data at each historical moment.

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

[0053] Next, for the first historical moment that is farthest from the current moment 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 mth historical moment, where m is a positive integer greater than 1, the power consumption feature vector of the mth historical moment and the power consumption analysis result of the m-1th historical moment can be used as input of the LSTM network for feature processing to obtain the power consumption analysis result of the mth historical moment.

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

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

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

[0058] In addition, the ARIMA model may also be used to predict the power consumption of each external power system, and the present disclosure does not impose any restrictions on this.

[0059] In step S36, the remaining electric energy is transmitted to the battery corresponding to each external power system according to the prediction result of the power consumption of each external power system.

[0060] Priorities can be configured in advance for external power systems. The higher the priority, the more important the power consumption of the external power system is; the lower the priority, the less important the power consumption of the external power system is. For example, the priority of the lighting system is higher than that of the video playback system, but lower than that of the irrigation system. In addition, it should be noted that the present disclosure does not impose specific restrictions on the configuration of priorities. It can be understood that the configuration of priorities will change according to different specific application scenarios of the present disclosure.

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

[0062] According to some embodiments of the present disclosure, a set of external power systems except the first external power system set among all external power systems is determined as a second external power system set, and for a target external power system in the second external power system set, a controller of the target external power system can send a power demand instruction to an external power supply, so that the external power supply responds to the power demand instruction and delivers the power required by the target external power system to a battery corresponding to the target external power system.

[0063] On the one hand, the target external power system is any one of the second external power system set. On the other hand, the external power source is a power source other than the self-generating water meter. 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 equipment such as photovoltaic modules, etc.

[0064] In the case where the predicted total power consumption of each external power system is less than the remaining power generated by the self-generated water meter except the power required by the self-generated water meter, the power transmission control unit can determine the difference between the remaining power and the predicted total, determine one or more external loads from the external load library based on the difference, and feed back the information of the one or more external loads to the external power system configuration terminal, so as to determine the one or more external loads as a new external power system in response to the external power system configuration operation. Thus, the power corresponding to the difference is transmitted to the new external power 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 power threshold can be determined. If the difference is greater than or equal to the power threshold, the above-mentioned operation of configuring a new external power system is performed. If the difference is less than the power threshold, it means that the remaining power is small and cannot continue to support the power supply needs of other systems. In this case, no operation may be performed, or the electric energy corresponding to the difference may be evenly distributed to the batteries corresponding to the existing external power systems. Among them, the present disclosure does not limit the determination of the power threshold. For example, it may be the power demand of the external load with the smallest power demand among the external loads.

[0066] The external load library can be pre-built. Specifically, the power transmission control unit can also pre-build the external load library in response to the external load entry operation. The entry information corresponding to the external load entry operation may include but is not limited to the name of the external load, the type of the external load, the power demand of the external load, the configuration cost of the external load, and the image of the external load.

[0067] In response to the situation in which the self-generating water meter may generate insufficient electricity in some embodiments of the present disclosure, the present disclosure also provides a relatively reverse power transmission control scheme.

[0068] In the case where the electric energy generated by the self-generating water meter is insufficient to meet its own electricity demand, the self-generating water meter can send an electric energy shortage alarm message to the electric energy transmission control unit. In response to the electric energy shortage alarm message, the electric energy transmission control unit can determine the adjustable power stored in the battery corresponding to each external power system, select one or more feedback external power systems that meet the power shortage demand of the self-generating water meter from all external power systems, and send an electric energy acquisition instruction to the controller corresponding to the feedback external power system, so that the controller corresponding to the feedback external power system controls the adjustable power stored in the battery corresponding to the feedback external power system to be transmitted to the battery of the self-generating water meter.

[0069] Specifically, the above-mentioned power shortage alarm information may include the power shortage, that is, the power that the self-generating water meter needs to obtain from the outside in order to maintain its own power supply. The adjustable power stored in the battery corresponding to the external power system is the power difference between the total power stored in the battery and the power demand of the external power system.

[0070] According to some embodiments of the present disclosure, the process of the power transmission control unit screening out one or more feedback-capable external power consumption systems that meet the power shortage demand of the self-generating water meter from all external power consumption systems may include: the power transmission control unit may score each external power consumption system according to the amount of adjustable power 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 and a second weight corresponding to the priority of the external power 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 stored in the battery corresponding to the external power system, and multiply the result of the normalized adjustable power 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 system, and multiply the result of the normalized priority by the second weight to obtain a second score; wherein the priority is negatively correlated with the second score, that is, the higher the priority, the more important the power consumption of the external power system is, and when considering the power to be separated from its corresponding battery, less power should be separated, which is reflected in the data processing, and the corresponding score is lower. The lower the priority, the less important the power consumption of the external power system is, and when considering the power to be separated from its corresponding battery, more power can be separated, which is reflected in the data processing, and the corresponding score is higher.

[0073] Then, when the first score and the second score are determined, the power transmission control unit may 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 may sort all external power consumption systems in descending order of scores to obtain an external power consumption system sequence.

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

[0076] Figure 4 The schematic diagram of the power transmission method of the present disclosure taking an external power system as an example is shown. Figure 4 On the one hand, the electric energy generated by the self-generating water meter can be transmitted to the battery corresponding to the external power system based on the control function of the electric energy transmission control unit. On the other hand, the electric energy stored in the battery corresponding to the external power system can be transmitted to the battery of the self-generating water meter based on the reverse control function of the electric energy transmission control unit. In this way, flexible complementarity of electric energy is achieved and the utilization efficiency of electric energy is improved.

[0077] In an exemplary embodiment of the present disclosure, a computer-readable storage medium is also provided, on which a program product capable of at least implementing the method executed by the above-mentioned power transmission control unit is stored. In some possible implementations, various aspects of the present disclosure can also be implemented in the form of a program product, which includes a program code, and when the program product is run on a terminal device, the program code is used to enable the terminal device to perform the steps described in the above-mentioned processing process according to various exemplary embodiments of the present disclosure.

[0078] The program product for implementing the above scheme according to the embodiment of the present disclosure can adopt a portable compact disk read-only memory (CD-ROM) and include program code, and can be run on a terminal device, such as a personal computer. However, the program product of the present disclosure is not limited thereto. In this document, a readable storage medium can be any tangible medium containing or storing a program, which can be used by or in combination with an instruction execution system, an apparatus or a device.

[0079] The program product may adopt any combination of one or more readable media. The readable medium may be a readable signal medium or a readable storage medium. The readable storage medium may be, for example, but not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, device or device, or any combination thereof. More specific examples (non-exhaustive list) of readable storage media include: an electrical connection with 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 disk, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination thereof.

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

[0081] The program code embodied on the readable medium may be transmitted using any appropriate medium, including but not limited to wireless, wired, optical cable, RF, etc., or any suitable combination of the foregoing.

[0082] Program code for performing the operations of the present disclosure may be written in any combination of one or more programming languages, including object-oriented programming languages ​​such as Java, C++, etc., and conventional procedural programming languages ​​such as "C" or similar programming languages. The program code may be executed entirely on the user computing device, partially on the user device, as a separate 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 the case of a remote computing device, the remote computing device may 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 may be connected to an external computing device (e.g., using an Internet service provider to connect through the Internet).

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

[0084] Those skilled in the art will appreciate that various aspects of the present disclosure may be implemented as systems, methods or program products. Therefore, various aspects of the present disclosure may be specifically implemented in the following forms, namely: complete hardware implementation, complete software implementation (including firmware, microcode, etc.), or a combination of hardware and software, which may be collectively referred to herein as "circuits", "modules" or "systems".

[0085] Refer to the following Figure 5 The electronic device 500 according to this embodiment of the present disclosure is described. Figure 5 The electronic device 500 shown is merely an example and should not bring any limitation to the functions and scope of use of the embodiments of the present disclosure.

[0086] like Figure 5 As shown, the electronic device 500 is in the form of a general computing device. The components of the electronic device 500 may include but are not limited to: at least one processing unit 510, 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] The storage unit stores a program code, which can be executed by the processing unit 510, so that the processing unit 510 performs the steps described in the above scheme according to various exemplary embodiments of the present disclosure. For example, the processing unit 510 can perform various steps performed by the power delivery 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 / utility 5204 having a set (at least one) of program modules 5205, such program modules 5205 including but not limited to: an operating system, one or more application programs, other program modules, and program data, each of which or some combination may include an implementation of a network environment.

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

[0091] The electronic device 500 may also communicate with one or more external devices 600 (e.g., keyboards, pointing devices, Bluetooth devices, etc.), may also communicate with one or more devices that enable a user to interact with the electronic device 500, and / or communicate with any device that enables the electronic device 500 to communicate with one or more other computing devices (e.g., routers, modems, etc.). This communication may be performed through an input / output (I / O) interface 550. In addition, the electronic device 500 may also communicate with one or more networks (e.g., local area networks (LANs), wide area networks (WANs), and / or public networks, such as the Internet) through a network adapter 560. As shown, the network adapter 560 communicates with other modules of the electronic device 500 through a 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 implementation, it is easy for those skilled in the art to understand that the example implementation described here can be implemented by software, or by software combined with necessary hardware. Therefore, the technical solution according to the implementation 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 solution according to the implementation of the present disclosure.

[0093] In addition, the above-mentioned figures are only schematic illustrations of the processes included in the scheme according to the exemplary embodiments of the present disclosure, and are not intended to be limiting. It is easy to understand that the processes shown in the above-mentioned figures do not indicate or limit the time sequence of these processes. In addition, it is also easy to understand that these processes can be performed synchronously or asynchronously, for example, 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, this division is not mandatory. In fact, according to the embodiments of the present disclosure, the features and functions of two or more modules or units described above can be embodied in one module or unit. On the contrary, the features and functions of one module or unit described above can be further divided into multiple modules or units to be embodied.

[0095] Those skilled in the art will readily appreciate other embodiments of the present disclosure after considering the specification and practicing what is disclosed herein. This application is intended to cover any variations, uses, or adaptations of the present disclosure that follow the general principles of the present disclosure and include common knowledge or customary technical means in the art that are not disclosed in the present disclosure. The specification and embodiments are to be considered merely as exemplary, and the true scope and spirit of the present disclosure are indicated by the claims.

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

Claims

1. A power supply system based on a self-generating water meter, characterized in that: include: A self-generating water meter, comprising a power generation module, wherein the power generation module is used to generate electric energy by using water flow in a water supply pipe; wherein the power generation module comprises a water turbine, wherein the water turbine is a water turbine with the best performance selected from a plurality of candidate water turbines by modeling and analyzing the plurality of candidate water turbines in advance, wherein the structural parameters of the candidate water turbines are different, and the structural parameters of the candidate water turbines include one or more of the number of runner blades, the shape of the runner blades, the height of the runner blades, the configuration of the inlet and outlet of the runner, and the diameter of the runner shaft; An electric energy transmission control unit, used for controlling the transmission of the remaining electric energy generated by the self-generating water meter except the electric energy required by the self-generating water meter; At least one external power system and a battery, a controller and an inverter corresponding to each of the external power systems; Among them, the power transmission control unit is used to transmit the remaining power to the battery corresponding to each of the external power systems according to the power demand of each of the external power systems, so that when the external power system uses power, it responds to the control instructions issued by the controller of the external power system to obtain power from the corresponding battery and convert the obtained power into alternating current through the inverter for use by the external power system.

2. The power supply system according to claim 1, characterized in that: The process of the power transmission control unit transmitting the remaining power to the battery corresponding to each of the external power systems according to the power demand of each of the external power systems includes: Acquiring historical power consumption data of each of the external power consumption systems; Predicting the power consumption of each external power system within a predetermined time period in the future based on the historical power consumption data of each external power system; The surplus electric energy is transmitted to the battery corresponding to each of the external power systems according to the prediction result of the power consumption of each of the external power systems.

3. The power supply system according to claim 2, characterized in that: The power transmission control unit is further configured to determine, in a case where the predicted total power consumption of each of the external power systems is greater than the remaining power, a first set of external power systems whose remaining power can meet the power demand from all external power systems in descending order of priority of the external power systems; The remaining electric energy is transmitted to the batteries corresponding to each external power system in the first external power system set according to power demand.

4. The power supply system according to claim 3, characterized in that: A set of all external power systems except the first external power system set is a second external power system set. For a target external power system in the second external power system set, a controller of the target external power system sends a power demand instruction to an external power supply, so that the external power supply responds to the power demand instruction and delivers the power required by the target external power system to a battery corresponding to the target external power system.

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

6. The power supply system according to claim 5, characterized in that: The power transmission control unit is also used to construct the external load library in advance in response to the external load entry operation; The input information corresponding to the external load input operation includes the name of the external load, the type of the external load, the power demand 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 power transmission control unit is also used to respond to the power shortage alarm information of the self-generating water meter to determine the adjustable power stored in the battery corresponding to each of the external power systems, screen out one or more feedback external power systems that meet the power shortage needs of the self-generating water meter from all external power systems, and send a power acquisition instruction to the controller corresponding to the feedback external power system, so that the controller corresponding to the feedback external power system controls the adjustable power stored in the battery corresponding to the feedback external power system to be transmitted to the battery of the self-generating water meter.

8. The power supply system according to claim 7, characterized in that: The power shortage alarm information includes the power shortage amount, and the adjustable power stored in the battery corresponding to the external power system is the power difference between the total power stored in the battery and the power demand of the external power system; wherein the process of the power transmission control unit screening out one or more external power systems that can be fed back to meet the power shortage demand of the self-generated water meter from all external power systems includes: Scoring each of the external power systems according to the available power stored in the battery corresponding to each of the external power systems and the priority of each of the external power systems, and obtaining a sequence of the external power systems in descending order of the scores; One or more external power consumption systems that meet the power shortage are determined from the external power consumption system sequence as external power consumption systems that can provide feedback.

9. The power supply system according to claim 8, characterized in that: The power transmission control unit scores each of the external power systems according to the adjustable power stored in the battery corresponding to each of the external power systems and the priority of each of the external power systems, and the process of obtaining the sequence of the external power systems in descending order of the scores includes: Determine a first weight corresponding to the adjustable power quantity and a second weight corresponding to the priority of the external power system; the first weight is greater than the second weight; Normalizing the adjustable power stored in the battery corresponding to the external power system, and multiplying the normalized adjustable power by the first weight to obtain a first score; Normalizing the priority of the external power system, and multiplying the result of the priority normalization by the second weight to obtain a second score; wherein 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 system; All the external power consumption systems are sorted in descending order of scores to obtain an external power consumption system sequence.

10. The power supply system according to claim 1, characterized in that: The external power 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.

Images