A wearable all-weather energy harvesting system

Abstract

The application discloses a wearable all-weather energy collection system, and belongs to the field of energy collection, comprising a low-frequency vibration energy collection array, a photovoltaic cell and an energy management module, wherein the low-frequency vibration energy collection array comprises first, second, third and fourth low-frequency vibration energy collection units, the output ends of the first, second, third and fourth low-frequency vibration energy collection units are connected with an energy input interface of the energy management module, and the first, second, third and fourth low-frequency vibration energy collection units are respectively arranged on limbs of a human body, so as to convert low-frequency vibration energy generated by limb movement into alternating current energy; the output end of the photovoltaic cell is connected with a direct current input interface of the energy management module, and the photovoltaic cell is arranged at a position of the human body where light is the most, so as to collect solar energy in the environment and convert the solar energy into direct current energy; the energy management module efficiently distributes the alternating current energy and the direct current energy under complex energy input and storage conditions through a deep learning algorithm, and can provide electric energy for small electronic devices which are carried daily, without consuming grid energy.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of energy collection, in particular to a wearable all-weather energy collection system based on a low-frequency vibration energy collector array and a photovoltaic cell. BACKGROUND

[0002] With the increasing tension of energy problems, the use of renewable energy can effectively reduce the demand for fossil energy and reduce carbon emissions. In human daily activities, limb movement will generate a large amount of mechanical energy, and there is solar energy in the environment at the same time, and at the same time, the collection of these two kinds of energy can obtain considerable electric energy both indoors and outdoors. However, the energy management circuit of the existing photovoltaic cell, vibration energy collector and other micro energy devices is designed for 1-2 micro energy input channels, and it is difficult to realize the efficient management of the input energy of more than two micro energy devices. However, for human wearing and other application scenarios, there are a large number of mechanical vibration energy parts in the limbs, head and neck, and the energy distribution is relatively dispersed, which is difficult to collect and manage.

[0003] In addition, the existing technology is mostly designed for the mature energy collection architecture system of "photovoltaic cell-lithium battery", and the types of micro energy devices used are single, which cannot realize all-weather energy collection. For example, photovoltaic cells can only generate electricity efficiently in good light conditions such as outdoor, sunny day, etc., but have almost no electric energy output in weak light conditions such as indoor, night, etc.

[0004] Therefore, there is an urgent need for an energy system that can simultaneously input and efficiently manage multiple micro energy sources, so as to be applicable to various wearable and distributed power generation environments, and to make up for the problem of insufficient output of photovoltaic cells in weak light environments. SUMMARY

[0005] The present application aims to solve the technical problem of how to provide a wearable all-weather energy collection system that can efficiently utilize the energy of multiple output power generation devices.

[0006] To this end, the present application aims to provide a wearable all-weather energy collection system.

[0007] To achieve the above object, the embodiment of the present application provides a wearable all-weather energy collection system, comprising a low-frequency vibration energy collection array, a photovoltaic cell and an energy management module, wherein the low-frequency vibration energy collection array comprises a first low-frequency vibration energy collection unit, a second low-frequency vibration energy collection unit, a third low-frequency vibration energy collection unit and a fourth low-frequency vibration energy collection unit, the output ends of the first low-frequency vibration energy collection unit, the second low-frequency vibration energy collection unit, the third low-frequency vibration energy collection unit and the fourth low-frequency vibration energy collection unit are connected with an energy input interface of the energy management module, and are arranged on the limbs of a human body respectively; the output end of the photovoltaic cell is connected with a direct current input interface of the energy management module, and is arranged at a position of the human body where the illumination is the largest; and an energy management strategy based on a deep learning algorithm is adopted to realize complex energy scheduling under the input conditions of the multi-path vibration energy collector and the photovoltaic cell.

[0008] The wearable all-weather energy collection system of the embodiment of the present application can collect mechanical energy generated by the movement of the limbs of a human body through the low-frequency vibration energy collector array, and can collect solar energy in the environment through the photovoltaic cell; the deep learning algorithm is introduced into the energy management system to cope with the decision problem of energy efficient distribution under the complex energy input and storage conditions; and the stored energy can provide power for small electronic devices carried daily, without consuming grid energy, and can supplement the power at any time and anywhere in the field area without grid coverage, thereby solving the problem of limited capacity of the battery-based portable power supply system.

[0009] In addition, the wearable all-weather energy collection system according to the above embodiment of the present application can have the following additional technical features:

[0010] Further, in an embodiment of the present application, the energy management module comprises a direct current input interface, a first alternating current energy input interface, a second alternating current energy input interface, a third alternating current energy input interface, a fourth alternating current energy input interface, a first rectifier bridge, a second rectifier bridge, a third rectifier bridge, a fourth rectifier bridge, a first super capacitor, a second super capacitor, a third super capacitor, a fourth super capacitor, a switch array, a central controller, a lithium battery discharge management circuit, a lithium battery charging management circuit, a lithium battery and a voltage stabilizing circuit.

[0011] Further, in one embodiment of the present application, the first AC energy input interface, the second AC energy input interface, the third AC energy input interface and the fourth AC energy input interface are connected with the first rectifier bridge, the second rectifier bridge, the third rectifier bridge and the fourth rectifier bridge respectively, and the output ends of the first rectifier bridge, the second rectifier bridge, the third rectifier bridge and the fourth rectifier bridge are connected with the first super capacitor, the second super capacitor, the third super capacitor and the fourth super capacitor respectively.

[0012] Further, in one embodiment of the present application, the DC input interface and the output ports of the first super capacitor, the second super capacitor, the third super capacitor and the fourth super capacitor are connected with the energy input end of the switch array.

[0013] Further, in one embodiment of the present application, the switch array is five groups of single-pole double-throw switch circuits, wherein one energy input end of the five groups of single-pole double-throw switch circuits is connected in parallel to the energy input end of the lithium battery charging management circuit; another energy input end of the five groups of single-pole double-throw switch circuits is connected in parallel to the energy input end of the voltage stabilizing circuit; and the control ends of the five groups of single-pole double-throw switch circuits are connected to the central controller.

[0014] Further, in one embodiment of the present application, the central controller is connected with the power monitoring end of the lithium battery charging management circuit, the control end of the lithium battery discharging management circuit is connected with the central controller, and the lithium battery is connected with the lithium battery charging management circuit and the lithium battery discharging management circuit respectively.

[0015] Further, in one embodiment of the present application, the input end of the voltage stabilizing circuit is connected with the output end of the lithium battery discharging management circuit and the output end of the switch array respectively, and the output end of the voltage stabilizing circuit is connected with an external load to provide a stable DC voltage.

[0016] Further, in one embodiment of the present application, the central controller comprises an energy decision-making calculation model, the energy decision-making calculation model comprises an input layer, a hidden layer and an output layer, wherein the input layer takes the expected maximum output power of the photovoltaic cell, the energy storage voltage of each super capacitor and the energy storage voltage of the lithium battery as input data, the hidden layer performs operation processing on the input data to obtain a mapping relationship of the output layer, the mapping relationship includes the output path selection of the photovoltaic cell, the output path selection of each super capacitor and whether the lithium battery provides output for the voltage stabilizer, and the hidden layer takes the overall energy utilization rate as an optimization target.

[0017] Further, in one embodiment of the present application, when the light energy collected by the photovoltaic cell and the kinetic energy collected by the low-frequency vibration energy collection array are insufficient, the central controller controls the lithium battery discharge management circuit to drive the load to work, and when the light energy or human kinetic energy is sufficient, the lithium battery is charged.

[0018] Further, in one embodiment of the present application, when the energy management module directly supplies power to the load through the photovoltaic cell or the low-frequency vibration energy collection array through the voltage stabilizing circuit, when the load demand power exceeds the output limit of the power generator, the output end of the voltage stabilizing circuit appears power failure, the central controller triggers power failure protection, and quickly switches the lithium battery to supply power to the load through the lithium battery discharge management circuit.

[0019] Additional aspects and advantages of the present application will be in part apparent and in part pointed out hereinafter. BRIEF DESCRIPTION OF DRAWINGS

[0020] The above and / or additional aspects and advantages of the present application will become apparent and be readily appreciated from the following description, taken in conjunction with the accompanying drawings, in which:

[0021] Figure 1 is a structural schematic diagram of a wearable all-weather energy collection system according to one embodiment of the present application;

[0022] Figure 2 is a specific connection schematic diagram of various components in a wearable all-weather energy collection system according to one embodiment of the present application;

[0023] Figure 3 is a multi-path energy decision algorithm structure schematic diagram based on a multi-layer perceptron according to one embodiment of the present application.

[0024] BRIEF DESCRIPTION OF DRAWINGS

[0025] 10 - wearable all-weather energy harvesting system, 100 - low-frequency vibration energy harvesting array, 101 - first low-frequency vibration energy harvesting unit, 102 - second low-frequency vibration energy harvesting unit, 103 - third low-frequency vibration energy harvesting unit, 104 - fourth low-frequency vibration energy harvesting unit, 200 - photovoltaic cell, 300 - energy management module, 301 - direct current input interface, 302 - first alternating current energy input interface, 303 - second alternating current energy input interface, 304 - third alternating current energy input interface, 305 - fourth alternating current energy input interface, 306 - first rectifier bridge, 307 - second rectifier bridge, 308 - third rectifier bridge, 309 - fourth rectifier bridge, 310 - first super capacitor, 311 - second super capacitor, 312 - third super capacitor, 313 - fourth super capacitor, 314 - switch array, 315 - central controller, 316 - lithium battery discharge management circuit, 317 - lithium battery charge management circuit, 318 - lithium battery, and 319 - voltage stabilizing circuit. DETAILED DESCRIPTION

[0026] Embodiments of the present application are described below in detail with reference to the accompanying drawings, wherein like or similar elements are denoted by like or similar reference symbols throughout the drawings. The embodiments described below are exemplary and are intended to explain the present application, and are not to be understood as limiting the present application.

[0027] A wearable all-weather energy harvesting system according to an embodiment of the present application is described below with reference to the accompanying drawings.

[0028] Figure 1 is a structural schematic diagram of a wearable all-weather energy harvesting system according to an embodiment of the present application.

[0029] As shown in Figure 1 , the wearable all-weather energy harvesting system 10 includes a low-frequency vibration energy harvesting array 100, a photovoltaic cell 200, and an energy management module 300.

[0030] The low-frequency vibration energy collection array 100 includes a first low-frequency vibration energy collection unit 101, a second low-frequency vibration energy collection unit 102, a third low-frequency vibration energy collection unit 103, and a fourth low-frequency vibration energy collection unit 104. The output ends of the first low-frequency vibration energy collection unit 101, the second low-frequency vibration energy collection unit 102, the third low-frequency vibration energy collection unit 103, and the fourth low-frequency vibration energy collection unit 104 are connected with the energy input interface of the energy management module 300, and are respectively arranged on the limbs of the human body. The output end of the photovoltaic cell 200 is connected with the direct current input interface of the energy management module 300, and is arranged at the position of the human body that is most exposed to light. The energy management module 300 includes a direct current input interface 301, a first alternating current energy input interface 302, a second alternating current energy input interface 303, a third alternating current energy input interface 304, a fourth alternating current energy input interface 305, a first rectifier bridge 306, a second rectifier bridge 307, a third rectifier bridge 308, a fourth rectifier bridge 309, a first super capacitor 310, a second super capacitor 311, a third super capacitor 312, a fourth super capacitor 313, a switch array 314, a central controller 315, a lithium battery discharge management circuit 316, a lithium battery charging management circuit 317, a lithium battery 318, and a voltage stabilizing circuit 319.

[0031] Further, in an embodiment of the present application, the first alternating current energy input interface 301, the second alternating current energy input interface 302, the third alternating current energy input interface 303, and the fourth alternating current energy input interface 304 are respectively connected with the first rectifier bridge 306, the second rectifier bridge 307, the third rectifier bridge 308, and the fourth rectifier bridge 309, and the output ends of the first rectifier bridge 306, the second rectifier bridge 307, the third rectifier bridge 308, and the fourth rectifier bridge 309 are respectively connected with the first super capacitor 310, the second super capacitor 311, the third super capacitor 312, and the fourth super capacitor 313.

[0032] Further, in an embodiment of the present application, the direct current input interface 301 and the output ports of the first super capacitor 310, the second super capacitor 311, the third super capacitor 312, and the fourth super capacitor 313 are connected with the energy input end of the switch array 314.

[0033] Further, in an embodiment of the present application, the switch array 314 is five groups of single-pole double-throw switch circuits, wherein one energy input end of the five groups of single-pole double-throw switch circuits is connected in parallel to the energy input end of the lithium battery charging management circuit 317; the other energy input end of the five groups of single-pole double-throw switch circuits is connected in parallel to the energy input end of the voltage stabilizing circuit 319; and the control ends of the five groups of single-pole double-throw switch circuits are connected to the central controller 315.

[0034] Further, in one embodiment of the present application, the central controller 315 is connected to the power monitoring terminal of the lithium battery charging management circuit 317, the control terminal of the lithium battery discharging management circuit 316 is connected to the central controller 315, and the lithium battery 318 is connected to the lithium battery charging management circuit 317 and the lithium battery discharging management circuit 316 respectively.

[0035] Further, in one embodiment of the present application, the input terminal of the voltage stabilizing circuit 319 is connected to the output terminal of the lithium battery discharging management circuit 316 and the output terminal of the switch array 314 respectively, and the output terminal of the voltage stabilizing circuit 319 is connected to an external load to provide a stable DC voltage.

[0036] Specifically, as shown in FIG. 3, the switch array 314 is connected to the lithium battery 318, the lithium battery charging management circuit 317 and the lithium battery discharging management circuit 316. Figure 2As shown, the specific structure of the wearable all-weather energy collection system according to the embodiment of the application is as follows: the output end of the photovoltaic cell 200 is connected with the direct current input interface 301, the first low-frequency vibration energy collection unit 101 is connected with the first alternating current energy input interface 302; the first alternating current energy input interface 302 is connected with the first rectifier bridge 306, and the first rectifier bridge 306 is connected with the first super capacitor 310; the second low-frequency vibration energy collection unit 102 is connected with the second alternating current energy input interface 303, the second alternating current energy input interface 303 is connected with the second rectifier bridge 307, and the second rectifier bridge 307 is connected with the second super capacitor 311; the third low-frequency vibration energy collection unit 103 is connected with the third alternating current energy input interface 304, the third alternating current energy input interface 304 is connected with the third rectifier bridge 308, and the third rectifier bridge 308 is connected with the third super capacitor 312; the fourth low-frequency vibration energy collection unit 104 is connected with the fourth alternating current energy input interface 305, the fourth alternating current energy input interface 305 is connected with the fourth rectifier bridge 309, and the fourth rectifier bridge 309 is connected with the fourth super capacitor 313, wherein the super capacitor provides an energy storage space for each alternating current energy input channel; the output port of the direct current input interface 301 and the first super capacitor 310, the second super capacitor 311, the third super capacitor 312 and the fourth super capacitor 313 are respectively connected with the input end of the five groups of single-pole double-throw switch circuits 314 of the switch array 314, which can control the path of energy output under the driving of the central controller 315; one energy input end of the five groups of single-pole double-throw switch circuits 314 is connected in parallel to the energy input end of the lithium battery charging management circuit 317; the other energy input end of the five groups of single-pole double-throw switch circuits 314 is connected in parallel to the energy input end of the voltage stabilizing circuit 319; the control end of the five groups of single-pole double-throw switch circuits 314 is connected to the central controller 315; the central controller 315 is connected with the power monitoring end of the lithium battery charging management circuit 317, so as to monitor the energy storage state of the lithium battery 318; the control end of the lithium battery discharging management circuit 316 is connected with the central controller 315, so that the central controller 315 can control the energy output of the voltage stabilizing circuit 319; the output end of the lithium battery discharging management circuit 316 is connected with the voltage stabilizing circuit 319; the lithium battery 318 is connected with the lithium battery charging management circuit 317 and the lithium battery discharging management circuit 316 respectively; and the output end of the voltage stabilizing circuit 319 is connected with a load, so as to provide a stable direct current voltage output for an external load.

[0037] It can be understood that the photovoltaic cell 200 inputs energy to the switch array 314 through the DC input interface 301, and the low-frequency vibration energy collection array 100 converts the AC output signal of each low-frequency vibration energy collection unit into a DC input signal through the AC input interface, the rectifier bridge and the supercapacitor, and then inputs it to the switch array 314. Then, the central controller 315 can read the input voltage of the photovoltaic cell and the energy storage voltage of each supercapacitor, and can output a signal to control the connection path of the single-pole double-throw switch circuit to change the closed position, thereby determining the energy path of the load output and the lithium battery output, ensuring maximum energy utilization, and maintaining the stability of the load output.

[0038] Furthermore, in one embodiment of the present invention, the central controller 315 includes an energy decision calculation model, which includes an input layer, a hidden layer and an output layer, wherein the input layer uses the expected maximum output power of the photovoltaic cell 200, the energy storage voltage of each supercapacitor and the energy storage voltage of the lithium battery 318 as input data, and the hidden layer uses the overall energy utilization rate as the optimization target to perform calculation processing on the input data to obtain a mapping relationship of the output layer, which includes the output path selection of the photovoltaic cell 200, the output path selection of each supercapacitor and whether the lithium battery 318 provides output for the regulator.

[0039] Specifically, if Figure 3 As shown, the energy management module in the embodiment of the present invention adopts a multilayer perceptron structure as an energy decision calculation model. The energy decision calculation model adopts a three-layer structure design, including an input layer, a hidden layer, and an output layer. The input layer serves as the judgment basis input in the multilayer perceptron. The expected maximum output power of the photovoltaic cell 200, the energy storage voltage of each supercapacitor, and the energy storage voltage of the lithium battery 318 are used as input data. After the hidden layer performs calculations, the mapping relationship of the output layer is obtained, including the output path selection of the photovoltaic cell 200, the output path selection of each supercapacitor, and whether the lithium battery 318 provides output for the voltage regulator. The hidden layer includes multiple computing nodes, and the number of nodes needs to be adjusted according to the design power consumption, judgment speed and other parameters required in the actual design. After the hidden layer transfer parameters in the multilayer perceptron are trained extensively in a test environment to obtain relatively optimized values, they are written into the central controller 315. After that, the transfer parameters are solidified and no longer changed to reduce the amount of calculation of the central processor 315. The training of the hidden layer takes the overall energy utilization rate of the energy management module 300 as the optimization target. The multi-layer perceptron is trained through a large amount of actual test data to obtain the maximum energy utilization rate, ensuring that under various energy input conditions, the energy utilization rate can always be kept at the maximum. Among them, the maximum energy utilization refers to maximizing the charging output of the lithium battery 318 under the premise of meeting the load power.

[0040] Further, in one embodiment of the present application, when the light energy collected by the photovoltaic cell 200 and the kinetic energy collected by the low-frequency vibration energy collection array 100 are insufficient, the central controller 315 controls the lithium battery discharge management circuit 316 to drive the load to work, and when the light energy or human kinetic energy is sufficient, the lithium battery 318 is charged.

[0041] Further, in one embodiment of the present application, when the energy management module directly supplies power to the load through the photovoltaic cell or the low-frequency vibration energy collection array through the voltage stabilizing circuit, when the load demand power exceeds the output limit of the power generation device, the output end of the voltage stabilizing circuit appears power failure, the central controller triggers power failure protection, and quickly switches the lithium battery to supply power to the load through the lithium battery discharge management circuit.

[0042] Specifically, the working principle of the wearable all-weather energy harvesting system based on the low-frequency vibration energy collector array and photovoltaic cell of the embodiment of the present application is as follows: the low-frequency vibration energy harvesting units 101, 102, 103 and 104 need to be respectively worn on the limbs of the human body or other positions with large movement ranges, so as to effectively collect the mechanical energy generated by the human body when walking or running; the photovoltaic cell 200 needs to be placed on the shoulders or back of the human body or other positions with large areas that can receive light, so as to obtain a large effective photovoltaic power generation area and enhance the output power of the photovoltaic cell 200. Since the output form of the photovoltaic cell 200 is direct current, the lithium battery 318 can be charged by directly connecting the photovoltaic cell 200 to the lithium battery charging management circuit 317, or driving the load by connecting the photovoltaic cell 200 to the voltage stabilizing circuit 319, so the photovoltaic cell 200 can be directly connected to the input end of a single-pole double-throw switch circuit of the switch array. The output form of the low-frequency vibration energy harvesting units 101, 102, 103 and 104 is direct current, so the low-frequency vibration energy collectors in each channel need to be full-wave rectified by the rectifier bridges 306, 307, 308 and 309 before charging the supercapacitors. Due to the inconsistent movement amplitudes of the limbs of the human body in daily activities, the output voltages and currents of the four energy harvesting units will be different, and the energy storage states of the four supercapacitors will also be different. In addition, affected by the strong randomness of environmental light, the output power of the photovoltaic cell 200 also has great randomness. Therefore, the five input energy sources all have certain randomness and inconsistency, so the energy management program is run in the central controller 315 to ensure the efficient and stable operation of the energy system. The central controller 315 will collect the open-circuit output voltage of the photovoltaic cell 200 in real time, and calculate the optimal output power of the photovoltaic cell through the voltage-current characteristic fitting model; the method for realizing this is to periodically disconnect the output of the photovoltaic cell 200 to the voltage stabilizing circuit 319 or the lithium battery charging management 317, so that the photovoltaic cell 200 enters the open-circuit state, thereby obtaining the maximum output power information of the photovoltaic cell 200. The central controller 315 will collect the energy storage voltage of the supercapacitors 310, 311, 312 and 313 in real time to obtain the energy storage information of each supercapacitor. The central processor 315 obtains the energy storage information of the lithium battery 318 through the charging management circuit 317. The neural network calculation model pre-stored in the central processor 318 takes the output power of the photovoltaic cell 200, the energy storage information of the supercapacitors and the energy storage information of the lithium battery 318 as boundary conditions, and makes a decision on the output direction of each single-pole double-throw switch circuit in the switch array 314 to maximize energy utilization. When the light energy and human kinetic energy are insufficient, the central controller 315 enables the lithium battery discharge management circuit 316 to drive the load to work, and the lithium battery 318 is supplemented with electric energy when the light energy or human kinetic energy is sufficient.When the energy management module 300 directly supplies power to the load through the photovoltaic cell 200 or the low-frequency vibration energy collection unit through the voltage stabilizing circuit 319, when the load demand power exceeds the output limit of the power generation device, the output end of the voltage stabilizing circuit 319 appears power failure, the central controller 315 triggers the power failure protection, and quickly switches the lithium battery 318 to supply power to the load through the lithium battery discharge management circuit 316. Therefore, the energy management module always ensures the stability of the load power supply, and ensures the efficient use of the energy generated by the power generation device.

[0043] Therefore, the wearable all-weather energy collection system proposed in the embodiment of the present application collects and utilizes light energy and mechanical kinetic energy at the same time, covers the energy forms commonly existing in human daily activity scenes, has strong adaptability in scenes with different energy characteristics, can realize all-weather energy collection, and uses clean energy to supplement the power of the portable electronic device carried daily; at the same time, the energy management strategy based on the deep learning algorithm is used to realize complex energy scheduling under the input conditions of the multi-path vibration energy collector and the photovoltaic cell, enhance the efficient use of energy of the multi-path random output power generation device by the energy management system, and ensure the stability of the load output.

[0044] In addition, the terms "first", "second", "third", etc. are used only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined as "first", "second", etc. can be explicitly or implicitly included at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically limited.

[0045] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In the description of the present application, the illustrative description of the above terms is not necessarily for the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any suitable manner in any one or more embodiments or examples. In addition, different embodiments or examples described in the present application and the features of different embodiments or examples can be combined and combined by those skilled in the art without contradiction.

[0046] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limiting the present application, and those skilled in the art can make changes, modifications, replacements and variations to the above embodiments within the scope of the present application.

Claims

1. A wearable all-weather energy harvesting system, characterized in that, The application relates to a wearable energy management system, comprising: a low-frequency vibration energy collection array, a photovoltaic cell and an energy management module, wherein, the low-frequency vibration energy collection array comprises a first low-frequency vibration energy collection unit, a second low-frequency vibration energy collection unit, a third low-frequency vibration energy collection unit and a fourth low-frequency vibration energy collection unit, the output ends of the first low-frequency vibration energy collection unit, the second low-frequency vibration energy collection unit, the third low-frequency vibration energy collection unit and the fourth low-frequency vibration energy collection unit are connected with an energy input interface of the energy management module, and the first low-frequency vibration energy collection unit, the second low-frequency vibration energy collection unit, the third low-frequency vibration energy collection unit and the fourth low-frequency vibration energy collection unit are respectively arranged on the limbs of a human body; the output end of the photovoltaic cell is connected with a direct-current input interface of the energy management module, and the photovoltaic cell is arranged at a position of the human body which is most exposed to light; a deep learning algorithm-based energy management strategy is adopted to realize complex energy scheduling under the input conditions of the multi-path vibration energy collector and the photovoltaic cell; the energy management module comprises a direct-current input interface, a first alternating-current energy input interface, a second alternating-current energy input interface, a third alternating-current energy input interface, a fourth alternating-current energy input interface, a first rectifier bridge, a second rectifier bridge, a third rectifier bridge, a fourth rectifier bridge, a first super capacitor, a second super capacitor, a third super capacitor, a fourth super capacitor, a switch array, a central controller, a lithium battery discharge management circuit, a lithium battery charging management circuit, a lithium battery and a voltage stabilizing circuit; the central controller comprises an energy decision calculation model, the energy decision calculation model comprises an input layer, a hidden layer and an output layer, wherein the input layer takes the expected maximum output power of the photovoltaic cell, the energy storage voltage of each super capacitor and the energy storage voltage of the lithium battery as input data, the hidden layer takes the overall energy utilization rate as an optimization target to perform operation processing on the input data, and a mapping relationship of the output layer is obtained, the mapping relationship comprises output path selection of the photovoltaic cell, output path selection of each super capacitor and whether the lithium battery provides output for the voltage stabilizer.

2. The wearable all-weather energy harvesting system of claim 1, wherein, the first alternating-current energy input interface, the second alternating-current energy input interface, the third alternating-current energy input interface and the fourth alternating-current energy input interface are respectively connected with the first rectifier bridge, the second rectifier bridge, the third rectifier bridge and the fourth rectifier bridge, and the output ends of the first rectifier bridge, the second rectifier bridge, the third rectifier bridge and the fourth rectifier bridge are respectively connected with the first super capacitor, the second super capacitor, the third super capacitor and the fourth super capacitor.

3. The wearable all-weather energy harvesting system of claim 1, wherein, the direct-current input interface and the output ports of the first super capacitor, the second super capacitor, the third super capacitor and the fourth super capacitor are connected with the energy input ends of the switch array.

4. The wearable all-weather energy harvesting system of claim 1, wherein, the switch array is five groups of single-pole double-throw switch circuits, wherein, one energy input end of the five groups of single-pole double-throw switch circuits is connected in parallel to an energy input end of the lithium battery charging management circuit; another energy input end of the five groups of single-pole double-throw switch circuits is connected in parallel to an energy input end of the voltage stabilizing circuit; the control ends of the five groups of single-pole double-throw switch circuits are connected to the central controller.

5. The wearable all-weather energy harvesting system of claim 1, wherein, The central controller is connected to the power monitoring end of the lithium battery charging management circuit, the control end of the lithium battery discharging management circuit is connected to the central controller, and the lithium battery is connected to the lithium battery charging management circuit and the lithium battery discharging management circuit respectively.

6. The wearable all-weather energy harvesting system of claim 1, wherein, The input end of the voltage stabilizing circuit is connected to the output end of the lithium battery discharging management circuit and the output end of the switch array respectively, and the output end of the voltage stabilizing circuit is connected to an external load to provide a stable direct-current voltage.

7. The wearable all-weather energy harvesting system of claim 1, wherein, The central controller comprises an energy decision calculation model, which includes an input layer, a hidden layer and an output layer, wherein the input layer takes the expected maximum output power of the photovoltaic cell, the energy storage voltage of each super capacitor and the energy storage voltage of the lithium battery as input data, the hidden layer performs operation processing on the input data with the total energy utilization rate as the optimization target to obtain the mapping relationship of the output layer, and the mapping relationship includes the output path selection of the photovoltaic cell, the output path selection of each super capacitor and whether the lithium battery provides output for the voltage stabilizer.

8. The wearable all-weather energy harvesting system of claim 1, wherein, When the light energy collected by the photovoltaic cell and the kinetic energy collected by the low-frequency vibration energy collection array are insufficient, the central controller controls the lithium battery discharging management circuit to drive the load to work, and the lithium battery is charged when the light energy or human kinetic energy is sufficient.

9. The wearable all-weather energy harvesting system of claim 1, wherein, When the energy management module directly supplies energy to the load through the photovoltaic cell or the low-frequency vibration energy collection array through the voltage stabilizing circuit, when the load demand power exceeds the output limit of the power generator, the output end of the voltage stabilizing circuit loses power, and the central controller triggers the power failure protection to quickly switch the lithium battery to supply power to the load through the lithium battery discharging management circuit.

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