A power supply system and electronic device

Abstract

The application relates to the technical field of solar energy storage, and discloses a power supply system and electronic equipment, the system comprising: a control module, an energy collection module, a power detection module and at least one target post-stage circuit branch; the energy collection module is connected with the at least one target post-stage circuit branch through the power detection module, is used for converting collected energy into electric energy, and transmits the electric energy to the target post-stage circuit branch; the power detection module is used for detecting the real-time power of the electric energy input into the power detection module by the energy collection module; the control module is connected with the power detection module, and is used for controlling the energy collection module and the corresponding target post-stage circuit branch to be turned on based on the comparison result of the real-time power and a preset power threshold. The application can adjust the current output direction according to the intensity of the collected electric energy by detecting the real-time power of the collected electric energy, flexibly adjusts the power supply mode under different environments, improves the energy utilization rate on the basis of meeting the power supply demand of the post-stage load.

Description

Technical Field

[0001] This application relates to the field of solar energy storage technology, specifically to a power supply system and electronic equipment. Background Technology

[0002] With the development of science and technology and the improvement of people's living standards, the demand for multi-functional applications of smart door locks is increasing, and therefore the battery life of smart door locks is also increasing. The power supply methods of existing wireless devices include the following: (1) Dry battery power supply. After the dry battery is depleted, it needs to be purchased and replaced, which is cumbersome and affects the user experience. (2) Rechargeable battery power supply. After the rechargeable battery is depleted, it needs to be removed for charging, which is cumbersome and affects the user experience. (3) Power supply after wireless charging, including laser charging and charging with renewable energy such as heat and solar energy. Among them, laser charging requires the additional deployment of a transmitter, and the transmitter requires additional power supply, which not only occupies space but also consumes a lot of energy; the power supply method of solar charging is relatively fixed, that is, it is impossible to flexibly adjust the power supply method under different lighting conditions, resulting in poor flexibility and adaptability and low energy utilization. Summary of the Invention

[0003] In view of this, this application provides a power supply system and electronic device to solve the problems of poor flexibility and low energy utilization of solar charging power supply methods.

[0004] In a first aspect, this application provides a power supply system, comprising: a control module, an energy harvesting module, a power detection module, and at least one target downstream circuit branch; the energy harvesting module is connected to the at least one target downstream circuit branch through the power detection module, for converting the harvested energy into electrical energy and transmitting it to the target downstream circuit branch; the power detection module is used to detect the real-time power of the electrical energy input from the energy harvesting module to the power detection module; the control module is connected to the power detection module, for controlling the energy harvesting module to connect to the corresponding target downstream circuit branch based on the comparison result of the real-time power and a preset power threshold.

[0005] The power supply system provided in this application collects energy and converts it into electrical energy through an energy harvesting module. A power detection module monitors the real-time power of the electrical energy, and a control module controls the energy harvesting module to connect to at least one target downstream circuit branch based on the real-time power and a preset power threshold, thereby transmitting electrical energy to the target downstream circuit branch. By detecting the real-time power of the harvested electrical energy, this application can adjust the current output direction according to the intensity of the harvested electrical energy, flexibly adjusting the power supply mode of the power supply system under different environments, and improving energy utilization while meeting the power supply needs of downstream loads.

[0006] In one optional implementation, at least one target downstream circuit branch includes: a first downstream circuit branch, which includes: a supercapacitor, a hysteresis circuit, a voltage regulator module, and an energy storage device; a first output terminal of the power detection module is connected to the input terminal of the supercapacitor, the output terminal of the supercapacitor is connected to the input terminal of the hysteresis circuit and the input terminal of the voltage regulator module, the output terminal of the hysteresis circuit is connected to the enable terminal of the voltage regulator module, the first output terminal of the voltage regulator module is connected to the input terminal of the energy storage device, the second output terminal of the voltage regulator module is connected to the load, and the output terminal of the energy storage device is connected to the load.

[0007] This application establishes a three-stage energy storage architecture of supercapacitor buffer + hysteresis control + wide voltage boost / buck conversion by deploying a downstream circuit branch containing supercapacitors. This reduces the frequent charging and discharging losses of energy storage components caused by energy output fluctuations when energy is low, achieves adaptive energy storage under all operating conditions, and flexibly adapts to the needs of diverse power modules, flexibly adjusts charging and power supply methods, and maximizes energy utilization.

[0008] In one optional implementation, at least one target downstream circuit branch further includes: a second downstream circuit branch and a third downstream circuit branch; the second downstream circuit branch includes: an energy storage device, wherein the second output terminal of the power detection module is connected to the input terminal of the energy storage device, and the output terminal of the energy storage device is connected to the load; the third downstream circuit branch includes: a voltage regulation module, the voltage regulation module including: a buck unit and a boost unit, wherein the third output terminal of the power detection module is connected to the input terminal of the buck unit or the input terminal of the boost unit, and the output terminals of the buck unit and the boost unit are connected to the load.

[0009] This application, by deploying a downstream circuit branch containing energy storage components and a downstream circuit branch containing buck-boost units, can provide a method for energy storage components to store energy and supply power, as well as a method for direct voltage conversion to supply power. This improves power supply efficiency when energy is relatively abundant, meets the diverse power supply needs of the load, and improves energy utilization.

[0010] In one optional embodiment, the energy harvesting module includes: an energy acquisition unit, an energy sensor, and an energy harvesting unit. The energy harvesting unit includes: a first harvesting unit and a second harvesting unit. The output terminal of the energy acquisition unit is connected to the input terminal of the first harvesting unit or the input terminal of the second harvesting unit. The output terminals of the first and second harvesting units are connected to the input terminal of the power detection module. The energy sensor is connected to the control module and is used to acquire the energy intensity at the location of the energy acquisition unit, so that the control module connects the output terminal of the energy acquisition unit to the input terminal of the first or second harvesting unit according to the energy intensity.

[0011] This application enables energy harvesting and electrical energy conversion under different energy conditions by deploying different harvesting units in the energy harvesting module. This ensures that both stronger and weaker energy can be harvested more efficiently, effectively adapting to energy harvesting under different intensities and improving energy conversion efficiency.

[0012] Secondly, this application provides a method for operating a power supply system applied to the first aspect above or any corresponding embodiment thereof. The method includes: acquiring the real-time power of an energy harvesting module; if the real-time power is greater than a first preset power threshold, controlling the energy harvesting module to connect at least a third downstream circuit branch in the target downstream circuit branch, so as to convert the harvested energy into electrical energy and transmit it to the target downstream circuit branch.

[0013] The power supply system provided in this application operates by comparing the detected real-time power with a first preset power threshold. Based on the comparison result, the energy harvesting module is controlled to connect to at least the third downstream circuit branch in the target downstream circuit branch, so as to convert the harvested energy into electrical energy and transmit it to the connected target downstream circuit branch. This application can adjust the current output direction according to the real-time power of the harvested electrical energy when energy is relatively sufficient, so as to flexibly adjust the power supply mode of the power supply system under different energy environments. Simultaneously, by connecting to at least the third downstream circuit branch, power supply efficiency is ensured, thereby improving energy utilization while meeting the power supply needs of downstream loads.

[0014] In one optional implementation, controlling the energy harvesting module to connect at least to the third downstream circuit branch in the target downstream circuit branch to convert the harvested energy into electrical energy and transmit it to the target downstream circuit branch includes: if the real-time power is greater than or equal to a first preset power threshold and less than a second preset power threshold, then controlling the energy harvesting module to connect to the third downstream circuit branch and controlling the energy harvesting module to disconnect from the first and second downstream circuit branches; if the real-time power is greater than or equal to the second preset power threshold, then controlling the energy harvesting module to connect to the third downstream circuit branch, and obtaining the state of charge of the energy storage components in the target downstream circuit branch, and controlling the energy harvesting module to connect to the first and / or second downstream circuit branches according to the state of charge.

[0015] By comparing real-time power with a first preset power threshold and a second power threshold, this invention can further refine the power supply mode of the power supply system according to energy conditions when energy is relatively sufficient. When energy is sufficient, energy can be stored by supercapacitors or energy storage devices, thereby further improving energy utilization.

[0016] In one optional implementation, controlling the connection of the energy harvesting module to the first and / or second downstream circuit branch based on the state of charge includes: if the state of charge is greater than a first preset energy threshold, controlling the energy harvesting module to connect to the first downstream circuit branch, wherein the first output terminal of the voltage regulator module in the first downstream circuit branch is connected to the energy storage device, and controlling the energy harvesting module to disconnect from the second downstream circuit branch; if the state of charge is not greater than the first preset energy threshold, controlling the energy harvesting module to disconnect from the first downstream circuit branch, and controlling the energy harvesting module to connect to the second downstream circuit branch.

[0017] This invention, by further determining the state of charge of the energy storage components when energy is sufficient, prioritizes storing the collected energy in the energy storage components when energy is sufficient but the energy storage components are not fully charged; and prioritizes storing the collected energy in the supercapacitor when energy is sufficient and the energy storage components are relatively fully charged, thereby maximizing the energy storage capacity of the power supply system, reducing energy loss during circuit power supply, and maximizing energy utilization.

[0018] In one optional implementation, the method further includes: if the real-time power is not greater than a first preset power threshold, then obtaining the state of charge of the energy storage device in the second downstream circuit branch; if the state of charge is lower than a second preset energy threshold, then controlling the energy harvesting module to connect to the first downstream circuit branch, and controlling the first output terminal of the voltage regulator module in the first downstream circuit branch to connect to the energy storage device; if the state of charge is not lower than the second preset energy threshold, then controlling the energy harvesting module to connect to the first downstream circuit branch and the second downstream circuit branch.

[0019] This invention adjusts the power supply mode of the power supply system according to the state of charge of the energy storage device when the real-time power is lower than a first preset power threshold. When the energy is weak and the energy storage device has low charge, the second output terminal of the voltage regulator module in the first downstream circuit branch and the energy storage device are preferentially turned on so that the energy is further stored in the energy storage device after the supercapacitor stores energy. When the energy is weak and the energy storage device has a high charge, the supercapacitor and the energy storage device store energy together and supply power to the load together, thereby meeting the load power supply requirements when the energy is weak.

[0020] In one optional implementation, the method further includes: acquiring the energy intensity of the environment in which the energy harvesting unit in the energy harvesting module is located; if the energy intensity is higher than a preset intensity threshold, connecting the output terminal of the energy harvesting unit to the input terminal of the first harvesting unit in the energy harvesting module, so that the first harvesting unit can harvest the electrical energy converted by the energy harvesting unit; if the energy intensity is lower than the preset intensity threshold, connecting the output terminal of the energy harvesting unit to the input terminal of the second harvesting unit in the energy harvesting module, so that the second harvesting unit can harvest the electrical energy converted by the energy harvesting unit.

[0021] This application enables power collection under different energy intensity conditions by switching the collection unit, ensuring that both stronger and weaker energy can be collected more efficiently, meeting the needs of different scenarios, improving energy collection efficiency, and enhancing the versatility of the power supply system.

[0022] Thirdly, this application provides an electronic device, including: a power supply system and a load, wherein the power supply system is connected to the load, and the power supply system is a power supply system as described in the first aspect above or any corresponding embodiment thereof. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the specific embodiments of this application or the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0024] Figure 1 This is a structural block diagram of a power supply system according to an embodiment of this application; Figure 2 This is a detailed structural diagram of the power supply system according to an embodiment of this application; Figure 3 This is a first layout structure diagram of a power supply system according to an embodiment of this application; Figure 4 This is a second partial structural diagram of a power supply system according to an embodiment of this application; Figure 5 This is a schematic diagram of the hysteresis circuit structure of the power supply system according to an embodiment of this application; Figure 6 This is a flowchart illustrating the operation of a power supply system according to an embodiment of this application; Figure 7 This is a flowchart illustrating the operation of another power supply system according to an embodiment of this application; Figure 8 This is a flowchart illustrating the operation of another power supply system according to an embodiment of this application; Figure 9 This is a structural block diagram of an electronic device according to an embodiment of this application; Figure 10 This is a schematic diagram of the hardware structure of the control module in the electronic device according to an embodiment of this application.

[0025] Explanation of reference numerals in the attached figures: 10-Control module; 20-Energy harvesting module; 201-Energy acquisition unit; 202-Energy sensor; 203-Energy harvesting unit; 2031-First harvesting unit; 2032-Second harvesting unit; 204-Fourth switch; 30-Power detection module; 40-Post-stage circuit; 401-Supercapacitor; 402-Hysteresis circuit; 403-Voltage regulator module; 404-Energy storage component; 405-Load; 406-Voltage regulation module; 4061-Buck unit; 4062-Boost unit; 407-First switch; 408-Second switch; 409-Third switch; 410-Fifth switch; Ii-Target post-stage circuit branch; I1-First post-stage circuit branch; I2-Second post-stage circuit branch; I3-Third post-stage circuit branch. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0027] This application's embodiments are applicable to scenarios where the power supply system in electronic devices collects renewable energy sources such as thermal energy and solar energy to power the loads in the electronic devices. An example is a smart door lock that uses solar energy to power its load. This application's embodiments provide a power supply system that, by detecting the voltage or power of the electrical energy converted from collected energy, switches different target downstream circuit branches to achieve the effect of flexibly adjusting the power supply mode according to the energy intensity.

[0028] According to an embodiment of this application, a power supply system embodiment is provided. It should be noted that, as used below, the term "module" can refer to a combination of software and / or hardware that implements a predetermined function. Although the apparatus described in the following embodiments is preferably implemented in software, hardware implementation, or a combination of software and hardware, is also possible and contemplated.

[0029] This embodiment provides a power supply system that can be deployed in the aforementioned electronic devices, such as smart door locks. Figure 1 This is a structural block diagram of a power supply system according to an embodiment of this application, such as... Figure 1As shown, the system includes: a control module 10, an energy harvesting module 20, a power detection module 30, and at least one target downstream circuit branch Ii; the energy harvesting module 20 is connected to at least one target downstream circuit branch Ii through the power detection module 30, and is used to convert the harvested energy into electrical energy and transmit it to the target downstream circuit branch Ii; the power detection module 30 is used to detect the real-time power of the electrical energy input from the energy harvesting module 20 to the power detection module 30; the control module 10 is connected to the power detection module 30, and controls the energy harvesting module 20 to be connected to the corresponding target downstream circuit branch Ii based on the comparison result of the real-time power and the preset power threshold.

[0030] Specifically, in the embodiments of this application, different target downstream circuit branches Ii represent different current flows in the downstream circuit 40. For example... Figure 2 As shown, at least one target downstream circuit branch Ii includes: a first downstream circuit branch I1, which includes a supercapacitor 401, a hysteresis circuit 402, a voltage regulator module 403, and an energy storage device 404 in the downstream circuit 40; the first output terminal of the power detection module 30 is connected to the input terminal of the supercapacitor 401, the output terminal of the supercapacitor 401 is connected to the input terminal of the hysteresis circuit 402 and the input terminal of the voltage regulator module 403, the output terminal of the hysteresis circuit 402 is connected to the enable terminal of the voltage regulator module 403, the first output terminal of the voltage regulator module 403 is connected to the load 405, the second output terminal of the voltage regulator module 403 is connected to the input terminal of the energy storage device 404, and the output terminal of the energy storage device 404 is connected to the load 405.

[0031] In some alternative implementations, such as Figure 2 As shown, at least one target downstream circuit branch further includes: a second downstream circuit branch I2 and a third downstream circuit branch I3; the second downstream circuit branch I2 includes an energy storage device 404 in the downstream circuit 40, wherein the second output terminal of the power detection module 30 is connected to the input terminal of the energy storage device 404, and the output terminal of the energy storage device 404 is connected to the load 405; the third downstream circuit branch I3 includes a voltage regulation module 406 in the downstream circuit 40, the voltage regulation module 406 includes: a buck unit 4061 and a boost unit 4062, wherein the third output terminal of the power detection module 30 is connected to the input terminal of the buck unit 4061 or the input terminal of the boost unit 4062, and the output terminals of the buck unit 4061 and the boost unit 4062 are connected to the load 405.

[0032] In some alternative implementations, such as Figure 2As shown, the output terminal of the power detection module 30 is connected to the first switch 407, which includes three output terminals. Different output terminals correspond to different target subsequent circuit branches Ii. The first output terminal corresponds to the first subsequent circuit branch I1, the second output terminal corresponds to the second subsequent circuit branch I2, and the third output terminal corresponds to the third subsequent circuit branch I3. The first input terminal of the control module 10 is connected to the power detection module 30, and the first output terminal is connected to the control terminal of the first switch 407. When the electrical energy output by the energy harvesting module 20 is input into the power detection module 30, the power detection module 30 detects the real-time current and real-time voltage of the electrical energy, and then determines the real-time power of the electrical energy. The control module obtains the real-time power and compares the real-time power with a preset power threshold. Based on the comparison result, it switches the conduction state of the input terminal and different output terminals in the first switch 407. It can also conduct one or more output terminals based on the comparison result of the real-time power and different preset power thresholds, so that the energy harvesting module 20 is connected to at least one of the target downstream circuit branches Ii through the power detection module 30 to transmit electrical energy to the downstream circuit 40.

[0033] like Figure 2 As shown, in the first downstream circuit branch I1, the output terminal of the voltage regulator module 403 is connected to the input terminal of the second switch 408. The first output terminal of the second switch 408 is connected to the input terminal of the energy storage device 404, corresponding to the first output terminal of the voltage regulator module 403. The second output terminal of the second switch 408 is connected to the load 405, corresponding to the second output terminal of the voltage regulator module 403. Thus, two sub-branches are formed in the first downstream circuit branch I1. One sub-branch connects to the energy storage device, and the energy storage device connects to the load. The other sub-branch directly connects to the load. The control module 10 acquires the state of charge of the energy storage device 404, compares the state of charge with a preset energy threshold, and switches the conduction state of the input terminal and different output terminals of the second switch 408 according to the comparison result, thereby transferring the electrical energy output by the voltage regulator module 403 to the energy storage device 404 or the load 405.

[0034] like Figure 2 As shown, in the third post-stage circuit branch I3, the third output terminal of the first switch 407 is connected to the input terminal of the third switch 409. The first and second output terminals of the third switch 409 are respectively connected to the input terminal of the step-down unit 4061 or the input terminal of the boost unit 4062. The second output terminal of the control module 10 is connected to the control terminal of the third switch 409. The control module 10 stores the input voltage of the load and compares the real-time voltage of the electrical energy detected by the power detection module 30 with the input voltage of the load. Based on the comparison result, it switches the conduction state of the input terminal and different output terminals of the third switch 409, thereby stepping down the transmitted electrical energy and transmitting it to the load 405, or stepping up the voltage and transmitting it to the load 405.

[0035] In some alternative implementations, such as Figure 3 As shown, the energy harvesting module 20 includes: an energy harvesting unit 201, an energy sensor 202, and an energy harvesting unit 203. The energy harvesting unit 203 includes: a first harvesting unit 2031 and a second harvesting unit 2032. The output terminal of the energy harvesting unit 201 is connected to the input terminal of the first harvesting unit 2031 or the input terminal of the second harvesting unit 2032. The output terminals of the first harvesting unit 2031 and the second harvesting unit 2032 are connected to the input terminal of the power detection module 30. The output terminal of the energy sensor 202 is connected to the control module 10 and is used to collect the energy intensity of the environment in which the energy harvesting unit 201 is located, so that the control module 10 can connect the output terminal of the energy harvesting unit 201 to the input terminal of the first harvesting unit 2031 or the input terminal of the second harvesting unit 2032 according to the energy intensity.

[0036] Among them, such as Figure 3 As shown, the output terminal of the energy harvesting unit 201 is connected to the input terminal of the fourth switch 204, the first output terminal of the fourth switch 204 is connected to the input terminal of the first collection unit 2031, and the second output terminal of the fourth switch 204 is connected to the input terminal of the second collection unit 2032. The control module 10 compares the energy intensity with a preset intensity threshold and switches the conduction state of the input terminal and different output terminals of the fourth switch 204 according to the comparison result, so that the first collection unit 2031 or the second collection unit 2032 can harvest energy.

[0037] Taking a solar power system for a smart door lock as an example, the energy harvesting unit 201 is a solar panel used to collect solar energy; the energy sensor 202 is a light sensor used to detect the light intensity of the environment around the solar panel; the first collection unit 2031 is a high-light collection unit, and the second collection unit 2032 is a low-light collection unit. In this embodiment, solar panels can be deployed on the front or rear panel of the smart door lock, or on both the front and rear panels, or on a pan-tilt unit on the front or rear panels. As the pan-tilt unit rotates to track the light, it can meet the needs of different indoor or outdoor weather conditions, maximizing energy collection efficiency.

[0038] In some alternative implementations, such as Figure 2 In the connection method shown, the hysteresis circuit 402 obtains the real-time voltage of the supercapacitor 401. If the real-time voltage of the supercapacitor 401 reaches the first preset voltage, the input and output terminals of the voltage regulator module 403 are turned on so that the supercapacitor 401 starts to transfer electrical energy to the voltage regulator module 403, and the voltage regulator module 403 converts the electrical energy to the first preset voltage. Until the real-time voltage drops to the second preset voltage, the input and output terminals of the voltage regulator module 403 are turned off so that the supercapacitor 401 stops transferring electrical energy to the voltage regulator module 403.

[0039] In some alternative implementations, if the voltage regulator module 403 does not have an enable terminal, such as Figure 4 As shown, in this embodiment of the application, a fifth switch 410 can also be provided between the output terminal of the supercapacitor 401 and the input terminal of the voltage regulator module 403. The input terminal of the hysteresis circuit 402 is connected to the supercapacitor 401, and the output terminal of the hysteresis circuit 402 is connected to the fifth switch 410. Figure 4 In the connection method shown, the hysteresis circuit 402 obtains the real-time voltage of the supercapacitor 401. If the real-time voltage of the supercapacitor 401 reaches the first preset voltage, the fifth switch 410 is closed, and the output terminal of the supercapacitor 401 is connected to the input terminal of the voltage regulator module 403, so that the supercapacitor 401 starts to transfer electrical energy to the voltage regulator module 403, and the voltage regulator module 403 converts the electrical energy to the first preset voltage. After the supercapacitor 401 starts to discharge, the real-time voltage gradually decreases until the real-time voltage drops to the second preset voltage. Then, the fifth switch 410 is opened, and the output terminal of the supercapacitor 401 is disconnected from the input terminal of the voltage regulator module 403, so that the supercapacitor 401 stops transferring electrical energy to the voltage regulator module 403.

[0040] In some alternative implementations, such as Figure 5 As shown, the core component of the hysteresis circuit 402 is an operational amplifier. The "-" terminal is the inverting terminal of the operational amplifier, which is connected to the supercapacitor 401. The real-time voltage of the supercapacitor 401 serves as the input signal Ui to be compared in the operational amplifier. The "+" terminal is the non-inverting terminal of the operational amplifier, and positive feedback is introduced through resistors R1 and R2 to form the threshold voltage required for hysteresis. In this embodiment, the rising and falling thresholds of the hysteresis circuit 402 are set by adjusting R1 and R2. The rising threshold is set to a first preset voltage, and the falling threshold is set to a second preset voltage. The rising threshold is used to determine whether the real-time voltage of the supercapacitor 401 has risen to the first preset voltage, and the falling threshold is used to determine whether the real-time voltage of the supercapacitor 401 has fallen to the second preset voltage. +VCC and -VCC are the operating power supplies of the operational amplifier, which determine the upper and lower limits of the output voltage swing. Uo is the comparison result, connected to... Figure 2 The enable terminal of the voltage regulator module 403 shown outputs a high or low level, controlling the input and output terminals of the voltage regulator module 403 to be turned on or off, or connected to, for example... Figure 4 The fifth switch 410 shown outputs a high level or a low level, controlling whether the fifth switch 410 is turned on or off.

[0041] The rise and fall thresholds of the hysteresis circuit 402 are determined based on the voltage thresholds required for the operation of the subsequent circuit. Without the hysteresis circuit 402, this application is no different from existing technology and cannot provide energy efficiently. The rated voltage of the supercapacitor 401 is determined based on the threshold voltage of the hysteresis circuit 402. The rated voltage of the supercapacitor 401 is always greater than the rise threshold of the hysteresis circuit 402, and the rise threshold is always greater than the maximum voltage required by the load in the target subsequent circuit branch Ii. This is to ensure that the supercapacitor 401 can supply power to the load.

[0042] In some optional implementations, taking the solar power supply system of a smart door lock as an example, a lithium battery is used as an energy storage device. In this embodiment, the power supply system charges the lithium battery in the smart door lock and supplies power to the load system, which includes electrical equipment such as a peephole and a motor. The maximum charging voltage of the lithium battery is 4.2V, and the minimum supply voltage of each electrical device is 3V. Therefore, in order to meet both requirements at the same time, the rising threshold of the hysteresis circuit is selected as 5V, because 5V is greater than both 4.2V and 3V. The lower limit of the battery charging range determines the falling threshold, for example, 2.5V is selected according to the requirements. This is only an example and is not a limitation.

[0043] When the energy harvesting module 20 converts solar energy into electrical energy and stores it in the supercapacitor 401, the voltage of the supercapacitor 401 gradually increases. When it reaches 5V, the hysteresis circuit 402 closes the output terminal of the supercapacitor 401 and the input terminal of the voltage regulator module 403. After the supercapacitor 401 discharges to 2.5V, the hysteresis circuit 402 shuts off the output terminal of the supercapacitor 401 and the input terminal of the voltage regulator module 403. The supercapacitor 401 stops supplying power to the subsequent circuits and restarts the next round of energy storage. Therefore, the amount of discharge corresponding to the supercapacitor 401 discharging from 5V to 2.5V each time is relatively fixed.

[0044] The power supply system provided in this application collects energy and converts it into electrical energy through an energy harvesting module. A power detection module monitors the real-time power of the electrical energy, and a control module controls the energy harvesting module to connect to at least one target downstream circuit branch based on the real-time power and a preset power threshold, thereby transmitting electrical energy to the target downstream circuit branch. By detecting the real-time power of the harvested electrical energy, this application can adjust the current output direction according to the intensity of the harvested electrical energy, flexibly adjusting the power supply mode of the power supply system under different environments, and improving energy utilization while meeting the power supply needs of downstream loads.

[0045] According to an embodiment of this application, an embodiment of a method for operating a power supply system is provided. It should be noted that the steps shown in the flowchart in the accompanying drawings can be executed in a computer system such as a set of computer-executable instructions. Furthermore, although a logical order is shown in the flowchart, in some cases, the steps shown or described may be executed in a different order than that shown here.

[0046] This embodiment provides a method for operating a power supply system, which can be executed by the control module of the aforementioned power supply system. Figure 6 This is a flowchart of the operation method of the power supply system according to an embodiment of this application, such as... Figure 6 As shown, the process includes the following steps: Step S601: Obtain the real-time power of the energy harvesting module.

[0047] Specifically, in the embodiments of this application, such as Figure 1-3 As shown, the energy harvesting module converts the harvested energy into electrical energy and inputs it into the power detection module. The power detection module performs voltage and current detection on the input electrical energy and calculates the product of current and voltage to obtain the real-time power corresponding to the electrical energy.

[0048] In some optional implementations, after the power detection module determines the real-time power of the input electrical energy, it feeds the real-time power back to the control module. The control module then compares the real-time power with a preset power threshold and controls the first switch between the power detection module and the subsequent circuit according to the comparison result, so that the input terminal of the first switch is connected to at least one of the three output terminals. After passing through the power detection module and the first switch, the electrical energy is input to different target subsequent circuit branches in the subsequent circuit.

[0049] In step S602, if the real-time power is greater than the first preset power threshold, the energy harvesting module is controlled to connect to at least the third downstream circuit branch in the target downstream circuit branch, so as to convert the harvested energy into electrical energy and transmit it to the target downstream circuit branch.

[0050] Specifically, in this embodiment, the preset power threshold includes a first power threshold and a second power threshold, where the first power threshold is less than the second power threshold, and is determined based on the power supply requirements of the subsequent circuits. To ensure the power supply system can provide normal power to the load, the first preset power threshold can be set to the minimum power supply to the load, and the second preset power threshold can be set to the rated power consumption of the load, but this is not a limitation. When the control module determines that the real-time power is greater than the first power threshold, it indicates that the energy is relatively sufficient, the provided power is relatively high, and it can meet the minimum power supply requirements of the load.

[0051] like Figure 1-3As shown, the third post-stage circuit branch includes a boost unit and a buck unit. When the energy is sufficient and the voltage is high, the load can be powered by bucking the voltage. When the energy is relatively sufficient but the collected voltage is low, the load can be powered by boosting the voltage. The first and second post-stage circuit branches are integrated energy storage and power supply circuits. Therefore, in order to improve power supply efficiency while ensuring power supply to the load, the input terminal of the first switch and the third output terminal are turned on to connect the energy harvesting module to the third post-stage circuit branch in the target post-stage circuit branch. The electrical energy collected by the energy harvesting module is directly transmitted to the load through the boost or buck unit. The control module pre-stores the input voltage of the load in the post-stage circuit, and then judges whether to boost or buck the electrical energy based on the input voltage and the voltage of the electrical energy converted by the energy harvesting module to meet the power demand of the load.

[0052] Furthermore, since the first and second post-stage circuit branches are integrated energy storage and power supply circuits, the energy harvesting module is only connected to the first and / or second post-stage circuit branches in the target post-stage circuit branch when the load power supply demand is fully met (energy is sufficient).

[0053] The power supply system provided in this application operates by comparing the detected real-time power with a first preset power threshold. Based on the comparison result, the energy harvesting module is controlled to connect to at least the third downstream circuit branch in the target downstream circuit branch, so as to convert the harvested energy into electrical energy and transmit it to the connected target downstream circuit branch. This application can adjust the current output direction according to the real-time power of the harvested electrical energy when energy is relatively sufficient, so as to flexibly adjust the power supply mode of the power supply system under different energy environments. Simultaneously, by connecting to at least the third downstream circuit branch, power supply efficiency is ensured, thereby improving energy utilization while meeting the power supply needs of downstream loads.

[0054] This embodiment provides a method for operating a power supply system, which can be executed by the control module of the aforementioned power supply system. Figure 7 This is a flowchart of the operation method of the power supply system according to an embodiment of this application, such as... Figure 7 As shown, the process includes the following steps: Step S701: Obtain the real-time power of the energy harvesting module. For details, please refer to [link to relevant documentation]. Figure 6 Step S601 of the illustrated embodiment will not be described again here.

[0055] In step S702, if the real-time power is greater than the first preset power threshold, the energy harvesting module is controlled to connect to at least the third downstream circuit branch in the target downstream circuit branch, so as to convert the harvested energy into electrical energy and transmit it to the target downstream circuit branch.

[0056] Specifically, step S702 above includes: Step S7021: If the real-time power is greater than or equal to the first preset power threshold and less than the second preset power threshold, then control the energy harvesting module to connect to the third downstream circuit branch, and control the energy harvesting module to disconnect from the first downstream circuit branch and the second downstream circuit branch.

[0057] Specifically, in this embodiment, taking the setting of a first preset power threshold as the minimum power supply to the load and a second preset power threshold as the rated power supply to the load as an example, if the first preset power threshold ≤ real-time power < second preset power threshold, it indicates that the energy is generally sufficient. Therefore, only the input and third output terminals of the first switch are turned on to connect the energy harvesting module to the third downstream circuit branch in the target downstream circuit branch. Simultaneously, the input and first output terminals of the first switch, and the input and second output terminals of the first switch are disconnected to disconnect the energy harvesting module from the first and second downstream circuit branches. At this time, the electrical energy collected by the energy harvesting module is transmitted to the load only through the boost or buck unit of the third downstream circuit branch.

[0058] Step S7022: If the real-time power is greater than or equal to the second preset power threshold, control the energy harvesting module to connect with the third downstream circuit branch, and obtain the state of charge of the energy storage components in the target downstream circuit branch. Based on the state of charge, control the energy harvesting module to connect with the first downstream circuit branch and / or the second downstream circuit branch.

[0059] Specifically, in this embodiment, if the real-time power is greater than or equal to the second preset power threshold, it proves that the energy is sufficient and the electrical energy collected by the energy harvesting module is enough to meet the power demand of the load. In this scenario, to improve resource utilization, the energy harvesting module can be connected to the third downstream circuit branch in the target downstream circuit branch by turning on the input and third output terminals of the first switch, or by turning on the input and second output terminals of the first switch to connect the energy harvesting module to the first or second downstream circuit branch. At this time, part of the electrical energy collected by the energy harvesting module is transmitted to the load through the boost or buck unit of the third downstream circuit branch, and part is stored in the first or second downstream circuit branch so that it can be used to supply power when the energy is insufficient.

[0060] In some optional implementations, energy storage devices offer more stable energy storage performance compared to supercapacitors. Therefore, when energy is sufficient, it is preferentially stored in energy storage devices. When the energy storage device reaches a certain level of charge and can no longer store energy, the energy can be stored in a supercapacitor. Therefore, in this embodiment of the invention, when the real-time power is ≥ a second preset power threshold, the state of charge of the energy storage device is further obtained, and then the connection between the energy harvesting module and the first and / or second downstream circuit branches is controlled based on the state of charge.

[0061] In some optional implementations, step S7022 above includes: Step a1: If the state of charge is greater than the first preset energy threshold, then control the energy harvesting module to connect to the first downstream circuit branch, the first output terminal of the voltage regulator module in the first downstream circuit branch to connect to the energy storage device, and control the energy harvesting module to disconnect from the second downstream circuit branch.

[0062] Specifically, in this embodiment of the invention, a first preset power threshold and a second preset power threshold are preset, with the first preset power threshold being greater than the second preset power threshold, to characterize different power states of the energy storage device. For example, setting the first preset power threshold to 95% and the second preset power threshold to 20% corresponds to a state of charge > 95% indicating that the energy storage device is relatively fully charged, and 20% ≤ state of charge ≤ 95% indicating that the energy storage device is not fully charged. This is merely an example and is not intended to be limiting.

[0063] If sufficient energy is available, the state of charge of the energy storage device will exceed the first preset energy threshold, indicating that the energy storage device has sufficient charge and does not require recharging. Therefore, the input and output terminals of the first switch and the second switch are simultaneously turned on, while the input and output terminals of the first and second switches are disconnected. This connects the energy harvesting module to the first downstream circuit branch and disconnects it from the second downstream circuit branch. At this time, part of the energy collected by the energy harvesting module is transmitted to the load through the boost or buck unit of the third downstream circuit branch, and part is stored in the supercapacitor through the first downstream circuit branch. The second downstream circuit branch does not store energy or participate in power supply. Based on the characteristics of the supercapacitor, when the supercapacitor reaches its energy storage limit, because the output terminal is connected to the input terminal of the energy storage device, and the energy storage device has a high input voltage due to its large charge, the supercapacitor, although connected to the energy storage device, cannot conduct. Therefore, the energy stored in the supercapacitor cannot be transferred to the energy storage device, and the supercapacitor continuously releases energy during the storage process.

[0064] Step a2: If the state of charge is not greater than the first preset energy threshold, then control the energy harvesting module to disconnect from the first downstream circuit branch and control the energy harvesting module to connect to the second downstream circuit branch.

[0065] Specifically, in this embodiment of the invention, if the energy is sufficient and the state of charge of the energy storage device is less than or equal to a first preset energy threshold, it indicates that the energy storage device is not fully charged. Therefore, it can be charged in time when the energy is sufficient to ensure that the energy storage device is fully charged when the energy is insufficient. At this time, the input and second output terminals of the first switch are turned on, while the input and first output terminals of the first switch are turned off. There is no need to control the conduction state of the second switch to connect the energy harvesting module to the second downstream circuit branch and disconnect it from the first downstream circuit branch. At this time, part of the electrical energy collected by the energy harvesting module is transmitted to the load through the boost or buck unit of the third downstream circuit branch, and part is directly stored in the energy storage device through the second downstream circuit branch. The first downstream circuit branch does not store energy or participate in power supply.

[0066] When the state of charge exceeds the first preset power threshold, or when the battery is fully charged, charging ends and the system switches to storing energy in the supercapacitor. This involves turning on the input and output terminals of the first switch and the input and output terminals of the second switch, while simultaneously turning off the input and output terminals of the first and second switches. This connects the energy harvesting module to the first downstream circuit branch and disconnects it from the second downstream circuit branch.

[0067] The power supply system provided in this application operates by comparing the detected real-time power with a first preset power threshold. Based on the comparison result, the energy harvesting module is controlled to connect to at least the third downstream circuit branch in the target downstream circuit branch, so as to convert the harvested energy into electrical energy and transmit it to the connected target downstream circuit branch. This application can adjust the current output direction according to the real-time power of the harvested electrical energy when energy is relatively sufficient, so as to flexibly adjust the power supply mode of the power supply system under different energy environments. Simultaneously, by connecting to at least the third downstream circuit branch, power supply efficiency is ensured, thereby improving energy utilization while meeting the power supply needs of downstream loads.

[0068] This embodiment provides a method for operating a power supply system, which can be executed by the control module of the aforementioned power supply system. Figure 8 This is a flowchart of the operation method of the power supply system according to an embodiment of this application, such as... Figure 8 As shown, the process includes the following steps: Step S801: Obtain the real-time power of the energy harvesting module. For details, please refer to [link to relevant documentation]. Figure 6 Step S601 of the illustrated embodiment will not be described again here.

[0069] Step S802: If the real-time power is not greater than the first preset power threshold, then obtain the state of charge of the energy storage components in the target downstream circuit branch.

[0070] Specifically, in this embodiment of the invention, taking the minimum power consumption of the load as an example, if the real-time power is less than or equal to the first preset power threshold, it indicates that the energy is insufficient. If the collected energy is directly transmitted to the load via the third downstream circuit branch, it is very likely that the load's power demand cannot be met. Therefore, in this scenario, the energy harvesting module is connected to the first downstream circuit branch and / or the second downstream circuit branch to utilize energy storage to power the load.

[0071] Furthermore, considering the characteristics of supercapacitors, even if the energy harvesting unit collects a low amount of energy, the supercapacitor can still accumulate a certain amount of charge before transferring it to the subsequent circuitry. Therefore, supercapacitors can be used to charge energy storage components. In this case, if the energy storage component has a large amount of charge and its input voltage is high, the supercapacitor cannot charge it. Therefore, the state of charge (SOC) of the energy storage component is first obtained, and the charging requirements are determined based on the SOC.

[0072] In step S803, if the state of charge is lower than the second preset energy threshold, the energy harvesting module is connected to the first downstream circuit branch, and the first output terminal of the voltage regulator module in the first downstream circuit branch is connected to the energy storage device.

[0073] Specifically, in this embodiment of the invention, if the state of charge of the energy storage device is lower than a second preset energy threshold, for example, lower than 20%, it indicates that the energy storage device has insufficient energy. At this time, the input and output terminals of the first switch and the input and output terminals of the second switch are turned on, connecting the energy harvesting module to the first downstream circuit branch. The supercapacitor in the first downstream circuit branch is connected to the energy storage device through a voltage regulator module, which is equivalent to connecting the first downstream circuit branch to the second downstream circuit branch. At this time, the supercapacitor stores the electrical energy collected by the energy harvesting module, and after storing it to a first preset voltage, it directly discharges to a second preset voltage for the next round of energy storage. During the energy release process, the voltage is higher in the early stage and lower in the later stage; therefore, it is regulated by the voltage regulator module before being stored in the energy storage device.

[0074] In some alternative implementations, taking a solar-powered smart door lock system as an example, the voltage change of the supercapacitor is directly affected by the intensity of sunlight. When the sunlight is relatively strong, the energy harvesting module outputs high power and large current, and the supercapacitor accumulates charge quickly, resulting in a rapid voltage rise and a higher voltage increase within the same time period, such as a short rise from 2.5V to 5V. When the sunlight is relatively weak, the energy harvesting module inputs low power and small current, the supercapacitor accumulates charge slowly, the voltage rises at a slower rate, and the voltage increase within the same time period is also lower, such as a long rise from 2.5V to 3V.

[0075] The hysteresis circuit acquires the real-time voltage of the supercapacitor during solar charging and determines whether the real-time voltage has reached a first preset voltage, such as 5V. If it has not reached this voltage, the hysteresis circuit controls the enable terminal of the voltage regulator module, keeping the input and output terminals of the voltage regulator module open. If the voltage has reached the preset voltage, in response to the real-time voltage of the supercapacitor reaching the first preset voltage during charging, the hysteresis circuit generates a first command and sends it to the enable terminal of the voltage regulator module, thereby controlling the input and output terminals of the voltage regulator module to close. After being regulated by the voltage regulator module, the supercapacitor discharges to the energy storage device.

[0076] like Figure 4 As shown, the hysteresis circuit acquires the real-time voltage during the solar charging process of the supercapacitor and determines whether the first real-time voltage reaches a first preset voltage, such as 5V. If it does not reach the first preset voltage, the fifth switch between the supercapacitor and the voltage regulator module remains open. If it does reach the first preset voltage, in response to the real-time voltage of the supercapacitor reaching the first preset voltage during charging, the hysteresis circuit generates a first command and sends it to the fifth switch, thereby controlling the fifth switch to close. The supercapacitor then supplies energy to the energy storage device after voltage regulation by the voltage regulator module.

[0077] After the discharge begins, such as Figure 2 As shown, the hysteresis circuit continuously acquires the real-time voltage of the supercapacitor during the discharge process and determines whether the real-time voltage is less than a second preset voltage. If it is not less than the second preset voltage, it controls the enable terminal of the voltage regulator module, keeping the input and output terminals of the voltage regulator module closed, and the supercapacitor continues to discharge. If the voltage is less than the second preset voltage, in response to the real-time voltage of the supercapacitor being lower than the second preset voltage during the discharge process, the hysteresis circuit generates a second command and sends it to the enable terminal of the voltage regulator module, controlling the input and output terminals of the voltage regulator module to disconnect, the supercapacitor ends its discharge, and the supercapacitor restarts energy storage, with the corresponding voltage gradually increasing, and this cycle repeats. It can be seen that the supercapacitor discharges from the first preset voltage to the second preset voltage each time, so the amount of discharge each time is relatively fixed. This embodiment of the application, by deploying a supercapacitor, can improve charging efficiency and reduce losses during the circuit process, maximizing energy savings, while reducing the number of charging cycles for energy storage components such as lithium batteries, and improving the service life of energy storage components.

[0078] like Figure 4 As shown, the hysteresis circuit continuously acquires the real-time voltage of the supercapacitor during the discharge process and determines whether the real-time voltage is less than the second preset voltage. If it is not less than the second preset voltage, it controls the fifth switch to remain closed, and the supercapacitor continues to discharge. If it is less than the second preset voltage, in response to the real-time voltage of the supercapacitor during the discharge process being lower than the second preset voltage, the hysteresis circuit generates a second command and sends it to the fifth switch to control the fifth switch to open. The supercapacitor ends its discharge and restarts energy storage, and the corresponding voltage gradually increases, thus repeating the cycle.

[0079] Furthermore, when the real-time power is less than or equal to the first preset power threshold, the conduction state of the third downstream circuit branch can be set to on or off. Even if it is on, the energy collected by the energy harvesting module may not be able to be transferred to the load due to its low energy level, so this is not limited here. Similarly, the conduction state of the second downstream circuit branch can be set to on or off. Since the energy storage device has a low charge and the energy harvesting module has a low energy level, it is not possible to charge the energy storage device, so this is not limited here.

[0080] Step S804: If the state of charge is not lower than the second preset energy threshold, then control the energy harvesting module to connect with the first and second downstream circuit branches.

[0081] Specifically, in this embodiment of the invention, if the state of charge of the energy storage device is higher than a second preset energy threshold, for example, higher than 20%, it proves that the energy storage device has sufficient energy and can participate in powering the load. At this time, the input terminal and the first output terminal of the first switch are turned on, and the input terminal and the second output terminal of the first switch are also turned on, so as to connect the energy harvesting module with the first downstream circuit branch and the second downstream circuit branch.

[0082] Furthermore, the input and output terminals of the second switch can be switched on to connect the supercapacitor in the second downstream circuit branch to the load via a voltage regulator module. At this time, the energy storage device and the supercapacitor can simultaneously supply power to the load. When the energy storage device discharges to a second preset power threshold, the input and output terminals of the first switch and the second switch are switched on again to connect the energy harvesting module to the first downstream circuit branch, and the supercapacitor in the first downstream circuit branch is connected to the energy storage device via a voltage regulator module, thereby charging the energy storage device.

[0083] In some optional implementations, the connection method of the target downstream circuit branch is controlled according to the real-time power of the energy collected by the energy harvesting module and the preset power threshold. During the energy harvesting process, the energy harvesting module uses different energy harvesting units to harvest energy according to the energy intensity in order to ensure energy harvesting efficiency.

[0084] In some alternative implementations, the energy harvesting process includes: Step b1: Obtain the energy intensity of the environment in which the energy harvesting unit in the energy harvesting module is located.

[0085] Specifically, in the embodiments of this application, because renewable energy sources such as thermal energy and solar energy are greatly affected by the surrounding environment, in order to effectively harvest energy whether the energy level is low or high, such as Figure 3As shown, the energy harvesting module deploys an energy harvesting unit, a first harvesting unit, a second harvesting unit, and an energy sensor. The energy harvesting unit harvests energy in the current environment, the energy sensor collects the energy intensity of the environment and sends it to the control module, which determines whether the first or second harvesting unit should harvest energy based on the energy intensity.

[0086] Taking solar energy storage as an example, the energy harvesting unit is a solar panel, the first collection unit is a high-light harvesting unit, the second collection unit is a low-light harvesting unit, and the energy sensor is a light sensor. The high-light harvesting unit can receive a larger maximum current, with a higher upper limit, meaning it can receive a large current (A level) under high light intensity. The low-light harvesting unit, on the other hand, can receive a very small current, with a lower lower limit, meaning it can receive a small current (micro-A level) under very weak light intensity. The light sensor detects the current ambient light intensity in real time and feeds it back to the control module.

[0087] Step b2: If the energy intensity is higher than the preset intensity threshold, the output terminal of the energy acquisition unit is connected to the input terminal of the first collection unit in the energy collection module, and the first collection unit collects the electrical energy converted by the energy acquisition unit.

[0088] Specifically, in the embodiments of this application, such as Figure 3 As shown, a fourth switch is deployed between the energy harvesting unit and the first and second collection units. When the control module determines that the energy intensity is greater than a preset intensity threshold, it controls the input terminal of the fourth switch to connect with the first output terminal, and the first collection unit collects the electrical energy converted by the energy harvesting unit. Taking solar energy as an example, the strong light harvesting unit collects electrical energy, and at this time, the strong light charging mode is executed.

[0089] Step b3: If the energy intensity is lower than the preset intensity threshold, the output terminal of the energy acquisition unit is connected to the input terminal of the second collection unit in the energy collection module, and the second collection unit collects the electrical energy converted by the energy acquisition unit.

[0090] Specifically, in this embodiment, when the control module determines that the energy intensity is less than or equal to a preset intensity threshold, it controls the input terminal of the fourth switch to be connected to the second output terminal, and the second collection unit collects the electrical energy converted by the energy collection unit. Taking solar energy as an example, the weak light collection unit collects electrical energy, and at this time, the weak light charging mode is executed.

[0091] The power supply system provided in this application operates by comparing the detected real-time power with a first preset power threshold. Based on the comparison result, the energy harvesting module is controlled to connect to at least the third downstream circuit branch in the target downstream circuit branch, so as to convert the harvested energy into electrical energy and transmit it to the connected target downstream circuit branch. This application can adjust the current output direction according to the real-time power of the harvested electrical energy when energy is relatively sufficient, so as to flexibly adjust the power supply mode of the power supply system under different energy environments. Simultaneously, by connecting to at least the third downstream circuit branch, power supply efficiency is ensured, thereby improving energy utilization while meeting the power supply needs of downstream loads.

[0092] This application also provides an electronic device, such as a smart door lock, as shown in the embodiments. Figure 9 As shown, it includes: the above Figure 1 , Figure 2 or Figure 3 The power supply system and load are shown, with the power supply system connected to the load.

[0093] Please see Figure 10 , Figure 10 This is a schematic diagram of the structure of a control module in an electronic device provided in an optional embodiment of this application, such as... Figure 10 As shown, the computer device includes one or more processors 100, memory 200, and interfaces for connecting the components, including high-speed interfaces and low-speed interfaces. The components communicate with each other via different buses and can be mounted on a common motherboard or otherwise installed as needed. The processors can process instructions executed within the computer device, including instructions stored in or on memory to display graphical information of a GUI on external input / output devices (such as display devices coupled to the interfaces). In some alternative implementations, multiple processors and / or multiple buses can be used with multiple memories and multiple memory modules, if desired. Similarly, multiple computer devices can be connected, each providing some of the necessary operations (e.g., as a server array, a group of blade servers, or a multiprocessor system). Figure 10 Take a processor 100 as an example.

[0094] Processor 100 may be a central processing unit, a network processor, or a combination thereof. Processor 100 may further include a hardware chip. The hardware chip may be an application-specific integrated circuit (ASIC), a programmable logic device (PLD), or a combination thereof. The programmable logic device may be a complex programmable logic device (CAMP), a field-programmable gate array (FPGA), a general-purpose array logic (GPA), or any combination thereof.

[0095] The memory 200 stores instructions executable by at least one processor 100 to cause the at least one processor 100 to perform the method shown in the above embodiments.

[0096] The memory 200 may include a program storage area and a data storage area. The program storage area may store the operating system and applications required for at least one function; the data storage area may store data created based on the use of the computer device. Furthermore, the memory 200 may include high-speed random access memory and may also include non-transitory memory, such as at least one disk storage device, flash memory device, or other non-transitory solid-state storage device. In some alternative embodiments, the memory 200 may optionally include memory remotely located relative to the processor 100, which can be connected to the computer device via a network. Examples of such networks include, but are not limited to, the Internet, intranets, local area networks, mobile communication networks, and combinations thereof.

[0097] The memory 200 may include volatile memory, such as random access memory; the memory may also include non-volatile memory, such as flash memory, hard disk or solid-state drive; the memory 200 may also include a combination of the above types of memory.

[0098] The computer device also includes a communication interface 300 for communicating with other devices or communication networks.

[0099] This application also provides a computer-readable storage medium. The methods described in this application can be implemented in hardware or firmware, or implemented as recordable on a storage medium, or implemented as computer code downloaded over a network and originally stored on a remote storage medium or a non-transitory machine-readable storage medium and subsequently stored on a local storage medium. Thus, the methods described herein can be processed by software stored on a storage medium using a general-purpose computer, a dedicated processor, or programmable or dedicated hardware. The storage medium can be a magnetic disk, optical disk, read-only memory, random access memory, flash memory, hard disk, or solid-state drive, etc.; further, the storage medium can also include combinations of the above types of memory. It is understood that computers, processors, microprocessor control modules, or programmable hardware include storage components capable of storing or receiving software or computer code. When the software or computer code is accessed and executed by the computer, processor, or hardware, the methods shown in the above embodiments are implemented.

[0100] A portion of this application can be applied as a computer program product, such as computer program instructions, which, when executed by a computer, can invoke or provide the methods and / or technical solutions according to this application through the operation of the computer. Those skilled in the art will understand that the forms in which computer program instructions exist in a computer-readable medium include, but are not limited to, source files, executable files, installation package files, etc. Correspondingly, the ways in which computer program instructions are executed by a computer include, but are not limited to: the computer directly executing the instructions, or the computer compiling the instructions and then executing the corresponding compiled program, or the computer reading and executing the instructions, or the computer reading and installing the instructions and then executing the corresponding installed program. Here, the computer-readable medium can be any available computer-readable storage medium or communication medium accessible to a computer.

[0101] Although embodiments of this application have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of this application, and all such modifications and variations fall within the scope defined by the appended claims.

Claims

1. A power supply system, characterized in that, The system includes: a control module, an energy harvesting module, a power detection module, and at least one target downstream circuit branch; The energy harvesting module is connected to at least one of the target downstream circuit branches through the power detection module, and is used to convert the harvested energy into electrical energy and transmit it to the target downstream circuit branch. The power detection module is used to detect the real-time power of the electrical energy input from the energy harvesting module to the power detection module; The control module is connected to the power detection module, and based on the comparison result of the real-time power and the preset power threshold, controls the energy harvesting module to conduct to the corresponding target downstream circuit branch.

2. The system according to claim 1, characterized in that, The at least one target downstream circuit branch includes: a first downstream circuit branch, which includes: a supercapacitor, a hysteresis circuit, a voltage regulator module, and an energy storage component. The first output terminal of the power detection module is connected to the input terminal of the supercapacitor. The output terminal of the supercapacitor is connected to the input terminal of the hysteresis circuit and the input terminal of the voltage regulator module. The output terminal of the hysteresis circuit is connected to the enable terminal of the voltage regulator module. The first output terminal of the voltage regulator module is connected to the input terminal of the energy storage device. The second output terminal of the voltage regulator module is connected to the load. The output terminal of the energy storage device is connected to the load.

3. The system according to claim 2, characterized in that, The at least one target downstream circuit branch further includes: a second downstream circuit branch and a third downstream circuit branch; The second subsequent circuit branch includes an energy storage component, wherein the second output terminal of the power detection module is connected to the input terminal of the energy storage component, and the output terminal of the energy storage component is connected to the load. The third post-stage circuit branch includes a voltage regulation module, which includes a buck unit and a boost unit. The third output terminal of the power detection module is connected to the input terminal of the buck unit or the input terminal of the boost unit, and the output terminals of the buck unit and the boost unit are connected to the load.

4. The system according to any one of claims 1 to 3, characterized in that, The energy harvesting module includes: an energy acquisition unit, an energy sensor, and an energy harvesting unit, wherein the energy harvesting unit includes: a first harvesting unit and a second harvesting unit; The output terminal of the energy harvesting unit is connected to the input terminal of the first collection unit or the input terminal of the second collection unit, and the output terminals of the first collection unit and the second collection unit are connected to the input terminal of the power detection module. The energy sensor is connected to the control module and is used to collect the energy intensity at the location of the energy collection unit, so that the control module can connect the output terminal of the energy collection unit to the input terminal of the first collection unit or the input terminal of the second collection unit according to the energy intensity.

5. A method of operating a power supply system according to any one of claims 1 to 4, characterized in that, The method includes: Obtain the real-time power of the energy harvesting module; If the real-time power is greater than the first preset power threshold, the control energy harvesting module is connected to at least the third downstream circuit branch in the target downstream circuit branch to convert the harvested energy into electrical energy and transmit it to the target downstream circuit branch.

6. The method according to claim 5, characterized in that, The target downstream circuit branch further includes: a first downstream circuit branch and a second downstream circuit branch. The control energy harvesting module is connected to at least a third downstream circuit branch in the target downstream circuit branch to convert the harvested energy into electrical energy and transmit it to the target downstream circuit branch, including: If the real-time power is greater than or equal to the first preset power threshold and less than the second preset power threshold, then control the energy harvesting module to connect to the third downstream circuit branch, and control the energy harvesting module to disconnect from the first downstream circuit branch and the second downstream circuit branch. If the real-time power is greater than or equal to the second preset power threshold, the energy harvesting module is connected to the third downstream circuit branch, and the state of charge of the energy storage components in the target downstream circuit branch is obtained. Based on the state of charge, the energy harvesting module is connected to the first downstream circuit branch and / or the second downstream circuit branch.

7. The method according to claim 6, characterized in that, The step of controlling the connection of the energy harvesting module to the first downstream circuit branch and / or the second downstream circuit branch according to the state of charge includes: If the state of charge is greater than the first preset power threshold, then the energy harvesting module is connected to the first downstream circuit branch, the first output terminal of the voltage regulator module in the first downstream circuit branch is connected to the energy storage device, and the energy harvesting module is disconnected from the second downstream circuit branch. If the state of charge is not greater than the first preset power threshold, then the energy harvesting module is disconnected from the first downstream circuit branch, and the energy harvesting module is connected to the second downstream circuit branch.

8. The method according to claim 5, characterized in that, The target subsequent circuit branch further includes: a first subsequent circuit branch and a second subsequent circuit branch, and the method further includes: If the real-time power is not greater than the first preset power threshold, then the state of charge of the energy storage components in the target downstream circuit branch is obtained. If the state of charge is lower than the second preset power threshold, the energy harvesting module is connected to the first downstream circuit branch, and the first output terminal of the voltage regulator module in the first downstream circuit branch is connected to the energy storage device. If the state of charge is not lower than the second preset power threshold, then the energy harvesting module is connected to the first downstream circuit branch and the second downstream circuit branch.

9. The method according to claim 5, characterized in that, The method further includes: Obtain the energy intensity of the environment in which the energy harvesting unit in the energy harvesting module is located; If the energy intensity is higher than a preset intensity threshold, the output terminal of the energy harvesting unit is connected to the input terminal of the first collection unit in the energy harvesting module, and the first collection unit collects the electrical energy converted by the energy harvesting unit. If the energy intensity is lower than the preset intensity threshold, the output terminal of the energy harvesting unit is connected to the input terminal of the second collection unit in the energy harvesting module, and the second collection unit collects the electrical energy converted by the energy harvesting unit.

10. An electronic device, characterized in that, include: A power supply system and a load, wherein the power supply system is connected to the load, and the power supply system is the power supply system as described in any one of claims 1 to 4.

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