Portable human body gravity center alternate treading coupling power generation method

Abstract

This invention discloses a portable method for generating electricity through alternating footsteps, relating to the field of human-powered power generation technology. The method includes: separately collecting alternating left and right footstep movements and converting them into linear reciprocating power; using a unidirectional transmission mechanism to convert the two linear powers into intermittent rotational power in the same direction; converging the two intermittent rotational powers onto the same rotational axis and coupling them into a continuous, co-directional composite rotational power; and accelerating this composite power to drive a generator to generate electricity. This invention, through the core steps of "alternating collection – unidirectional conversion – coaxial coupling," efficiently converts the discontinuous alternating footsteps of the human body into continuous and stable rotational power, fundamentally solving the key problems of discontinuous output and low efficiency in existing human-powered power generation technologies, and naturally facilitating the miniaturization and portability of the device. This invention also further discloses an intelligent electronic control optimization scheme integrating maximum power point tracking, DC-DC conversion, and voice interaction.

Description

Technical Field

[0001] This invention relates to the field of human-powered power generation technology, specifically to a method for achieving power coupling and continuous power generation by alternating footsteps of the human body, which is particularly suitable for portable emergency power supply equipment. Background Technology

[0002] Portable human-powered generators are invaluable in scenarios without mains power, such as outdoor work, emergency rescue, and wilderness camping. Currently mainstream human-powered generation methods, such as hand-cranked generators or single-pedal pedal generators, generally suffer from inherent drawbacks such as discontinuous power input and low energy conversion efficiency. For example, hand-cranked generators require users to continuously perform unnatural arm rotation movements, which are tiring and difficult to maintain stable power output; single-pedal pedal devices, due to the intermittent nature of power input, cause drastic fluctuations in generator speed and poor power quality.

[0003] Existing technology also includes a "two-person synchronized pedaling" fitness power generation device, which requires users to exert force with both feet simultaneously. This violates the biomechanical characteristics of the natural alternating shift of the center of gravity during walking, resulting in a poor user experience and failing to solve the problem of continuous power output. In essence, it is still a simple superposition of single-path power, rather than a seamless connection of alternating power.

[0004] The potential applications of this invention are wide-ranging, for example: Portable emergency and outdoor power supply: It can be integrated into a suitcase or backpack type power generation device for outdoor camping, emergency rescue, remote area operations and other scenarios, providing continuous green power for users' small electronic devices (such as mobile phones, lights and communication devices).

[0005] Fitness energy recovery equipment: It can be integrated into fitness equipment such as exercise bikes and steppers, converting the physical energy consumed by users during exercise into electrical energy. On the one hand, it powers the display screen and sensors of the equipment itself, and on the other hand, it can be connected to an energy storage device to realize the experience of "generating electricity through fitness", enhancing user participation and environmental awareness.

[0006] Range extender generator for vehicles: Particularly suitable for electric two-wheelers (such as electric bicycles and electric motorcycles). This generator can be designed as a portable module, allowing users to recharge the vehicle's battery by pedaling while the vehicle is parked or resting. As a "human-powered range extender" solution that does not rely on the power grid, it effectively alleviates users' range anxiety.

[0007] Public facilities and interactive installations: These can be embedded in interactive floors, children's playgrounds, or specific exhibition installations in public spaces, converting the public's stepping and interactive behavior into electrical energy to power the installation's own lighting and sound effects or to supply power to surrounding facilities, combining fun, education, and functionality.

[0008] However, to realize the above applications, a core prerequisite is the existence of a fundamental method that can efficiently and continuously convert the kinetic energy of alternating human footsteps into electrical energy. The shortcomings of existing power generation methods in terms of continuity, efficiency, and portability severely limit their practical application in these scenarios. Therefore, developing a novel, efficient, portable method for generating electricity through alternating human footsteps has significant practical implications and market value. Summary of the Invention

[0009] (a) Purpose of the invention This invention aims to overcome the shortcomings of existing human-powered power generation methods, such as discontinuous power, low efficiency, and lack of conformity to the natural movement patterns of the human body. It provides a portable human-weighted alternating foot-feet coupling power generation method. This method, through specific power transmission and coupling logic, transforms the intermittent power generated by alternating foot-feet pedaling into continuous rotational power in a single direction, thereby efficiently driving a generator. Ultimately, it achieves a compact and portable high-efficiency human-powered power generation system.

[0010] (II) Technical Solution To achieve the above objectives, the present invention adopts the following technical solution: A portable method for generating electricity by alternating footsteps and weight distribution, characterized by the following steps: S1: Collect the left and right pedaling movements, which are driven by the left and right shifts of the human body's center of gravity and occur alternately over time. S2: Convert the left and right pedaling actions into corresponding left and right linear reciprocating forces, respectively; S3: Using a one-way transmission mechanism, the linear reciprocating power of the left and right paths is converted into intermittent rotational power in a single rotational direction, wherein the pedaling stroke drives the rotation, and the reset stroke causes the system to idle and separate. S4: The two intermittent rotational forces obtained in step S3 are combined and alternately transmitted to the same rotational axis, thereby coupling and generating a continuous, unidirectional composite rotational force. S5: Increase the speed of the synthesized rotational power; S6: Utilize the increased power to drive the generator and generate electricity.

[0011] Furthermore, in step S3, the one-way transmission mechanism is a one-way bearing or a ratchet mechanism.

[0012] Furthermore, in step S4, the two intermittent rotational forces are converged and coupled through the same output shaft.

[0013] Furthermore, step S5 achieves speed increase through multi-stage gear meshing.

[0014] (III) Beneficial Effects Compared with the prior art, the present invention has the following beneficial effects: Continuous power and significantly improved efficiency: Through the core method of "alternating acquisition → unidirectional conversion → coaxial coupling", the discontinuous pedaling power of the human body is seamlessly spliced ​​into continuous power in the time dimension, which fundamentally solves the problem of large output pulsation of human power generation, enabling the generator to work at a stable speed and greatly improving energy conversion efficiency.

[0015] Ergonomically designed for a superior user experience: This method perfectly aligns with the natural weight shifting pattern of human walking. Users can drive the device simply by stepping in place, resulting in smooth, effortless power generation and reduced fatigue, thus greatly enhancing the device's usability and user experience.

[0016] Eliminating reset loss and achieving high-efficiency transmission path: By introducing unidirectional transmission logic, it is ensured that power is transmitted only during the pedaling stroke and automatically disengaged during the pedal reset stroke, completely eliminating the reverse resistance and energy loss present in traditional reciprocating mechanisms, and enabling the human body's work to be more effectively converted into effective mechanical energy.

[0017] Facilitates device miniaturization and portability: The power transmission path defined by this method is clear and compact, naturally suitable for implementation using coaxial, integrated mechanical structures, resulting in a simple, compact, and lightweight final product that perfectly meets the needs of portable and mobile application scenarios.

[0018] The method is highly versatile and easy to implement: The steps defined in this invention are clear and the logic is well-defined. Those skilled in the art can easily construct corresponding power generation devices based on this method and in combination with mature standard parts such as one-way bearings, gears, and shaft systems. It has high practicality and feasibility. Attached Figure Description

[0019] Figure 1 This is a flowchart illustrating the method of the present invention.

[0020] Figure 2 This is an exploded structural diagram of a preferred apparatus for implementing the method of the present invention.

[0021] Figure 3 for Figure 2 A top view of the device shown.

[0022] Figure 4 for Figure 2 The diagram shows the device from below.

[0023] Figure 5 for Figure 2 A three-dimensional schematic diagram of one product form of the device shown.

[0024] Figure 6This is a system block diagram of the intelligent electronic control module in Embodiment 2 of the present invention. Detailed Implementation

[0025] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. The following embodiments are for illustrative purposes only and are not intended to limit the scope of protection of the present invention.

[0026] Example 1: Basic Power Generation Method and Its Core Device This embodiment describes a portable power generation device for implementing the method of the present invention and its working process, combined with... Figures 1 to 5 Please provide an explanation.

[0027] The implementation process of the method is as follows: S1: Alternating Power Acquisition. The user stands naturally on the device and simulates walking by alternating steps in place. When the center of gravity shifts to the left, the left foot steps down on the left pedal assembly (12), this action is called "left-side stepping action". Then the center of gravity shifts to the right, the right foot steps down on the right pedal assembly (12), this action is called "right-side stepping action". The left and right steps are alternated and performed continuously in time.

[0028] S2: Convert to linear power. The pedaling action drives the rack (1) to reciprocate linearly along the guide limit frame (11) via the pedal, thereby converting the pedaling action into linear reciprocating power. The return spring (10) is compressed after pedaling and drives the rack and pedal back to their original positions after the pedaling force is released, ready for the next pedaling action.

[0029] S3: One-way rotation conversion. The linear motion of the rack (1) drives the transmission gear (2) meshing with it to rotate. A one-way bearing (4) is provided between the transmission gear (2) and the transmission shaft (3). This one-way bearing (4) constitutes the aforementioned "one-way transmission mechanism". Its working logic is as follows: when the rack moves downward (pedaling), the rotational force of the transmission gear (2) is locked through the one-way bearing (4) and transmitted to the transmission shaft (3); when the rack moves upward under the action of the return spring (reset stroke), the reverse rotation of the transmission gear (2) cannot be transmitted through the one-way bearing (4), and at this time the one-way bearing is in a "free-spinning" state. In this way, the linear reciprocating power on the left and right sides is converted into intermittent rotational power in the same direction of rotation on the transmission shaft (3).

[0030] S4: Coaxial coupling forms continuous power. The transmission gears (2) on the left and right sides are coaxially mounted on the same transmission shaft (3) through their respective one-way bearings (4). When the left side is stepped on, the transmission shaft (3) is driven to rotate by the left one-way bearing; when the left side returns to its original position and the right side is stepped on immediately afterward, the transmission shaft (3) is driven to continue rotating in the same direction by the right one-way bearing. In this way, the two intermittent rotational forces on the left and right sides are connected end to end in time and converge on the same rotation axis (i.e., transmission shaft 3) in space, and finally couple into a continuous and uninterrupted composite rotational force at the output end of the transmission shaft (3).

[0031] S5: Power speed increase. The continuous rotational power output from the drive shaft (3) is input into a three-stage speed-increasing gearbox. The power is transmitted sequentially through the meshing of speed-increasing gear one (101), speed-increasing gear two (105), and speed-increasing gear three (109), and the speed is increased step by step until the efficient operating speed required by the rear generator (113) is reached.

[0032] S6: Power generation. Through continuous high-speed rotational power with increased speed, the rotor of the generator (113) is directly driven to rotate through the final stage transmission shaft (110), cutting magnetic field lines to generate electrical energy, thus completing the conversion from human bioenergy to electrical energy.

[0033] Structural Support of the Device: The above method is implemented by a specific device. This device includes symmetrically arranged left and right pedal units (including pedal 12, rack 1, spring 10, etc.), a power conversion and coupling unit (including gear 2, one-way bearing 4, coaxial 3, etc.), a speed-increasing unit (gearbox 100 and internal gears 101, 105, 109, etc.), and a power generation unit (generator 113). All components are securely installed through fastener brackets (13), transmission gear brackets (14), speed-increasing gearbox brackets (100), etc., forming a compact and reliable whole machine. Figure 5 As shown, the entire device can be integrated into a portable housing for easy portability and use.

[0034] Example 2: Optimized System with Integrated Intelligent Electronic Control Module To maximize the efficiency, power quality, and human-computer interaction experience of the power generation system described in Embodiment 1, this embodiment further discloses an optimization scheme integrating an intelligent power control module.

[0035] like Figure 6 As shown, the intelligent electronic control module is connected between the output end of the generator (113) and the final electrical load or energy storage device. Its core includes: a maximum power point tracking (MPPT) controller, an adjustable voltage conversion and battery management unit, and a voice interaction unit.

[0036] 1. Maximum Power Point Tracking (MPPT) Controller: The MPPT controller samples the voltage and current output by the generator (113) in real time and calculates the current output power. Its internal microprocessor runs a maximum power point tracking algorithm (such as the perturbation observation method or the incremental conductance method) and dynamically controls the duty cycle of a switching transistor (such as a MOSFET) connected in the circuit through a pulse width modulation signal. Its core function is that, regardless of the frequency and force of the user's pedaling, the MPPT controller can adjust the equivalent load of the generator in real time, forcing the generator to always work at or near its maximum power output point at its current speed, thereby capturing the maximum available energy from the source. Compared with the traditional fixed load rectification scheme, it can significantly improve the energy capture efficiency of the system under varying operating conditions.

[0037] 2. Adjustable Voltage Conversion and Battery Management Unit: This unit is the core power processing hub of the system. It includes a programmable switching power supply circuit (such as a buck-boost DC-DC converter) and integrated battery management logic.

[0038] Adjustable voltage conversion: The output voltage of this switching power supply can be set by the user via an external knob, button, or touchscreen. For example, it can be set to 5V (powering USB devices), 12V (powering LED lighting and automotive equipment), 19V (powering laptops), or 24V / 36V / 48V / 72V, etc. (for charging DC devices or batteries of different specifications). The converter efficiently and stably converts the fluctuating DC power output from the MPPT controller into clean DC power at the user-defined value.

[0039] Battery Management Function: Specifically, this unit integrates a 72V lithium battery charge and discharge management circuit. When the user selects the "72V charging" mode, the unit will automatically charge the target battery using a standard constant current-constant voltage charging curve and will have overcharge and over-discharge protection functions. The unit is designed to be "adjustable," meaning its internal control firmware allows for the reconfiguration of supported battery types, voltages, and charging strategies via software or hardware. This enables easy future adaptation to other battery voltage specifications such as 36V and 48V without requiring hardware modifications.

[0040] That is, the unit is both an "adjustable adapter" and a "smart charger", realizing "multi-purpose use" and greatly expanding the application scenarios of the invention, enabling it to directly provide manual supplementary charging for the 72V batteries of electric bicycles and electric motorcycles.

[0041] 3. Voice Interaction Unit: This unit includes a speech synthesis chip, a microprocessor, and a speaker. The microprocessor acquires system status data in real time, such as current power generation, cumulative power generation, output voltage / current, battery level, and charging status, and generates corresponding voice prompts based on preset logic, which are then broadcast through the speaker. For example: When the system starts up: "Power generation system is ready, please begin pedaling." When setting the output: "Output voltage is set to 72V, ready to charge the battery." When generating electricity by stepping on the pedals: "Charging in progress, charging power XX watts, battery charge XX%." When power generation is high: "In good condition, high power generation efficiency!" When the battery is fully charged: "Battery is fully charged, please disconnect." Technical effects: This embodiment achieves comprehensive optimization of system performance and functional expansion at three levels by introducing this intelligent electronic control module: Energy layer optimization: By maximizing energy capture through MPPT technology, the problem of low average power generation efficiency caused by unstable human input is solved.

[0042] Optimized Power and Energy Management: Through an "adjustable voltage conversion and battery management unit," this system becomes a universal, intelligent portable power source. It not only provides stable DC power at various voltages for a wide range of small devices, but its built-in 72V battery management function directly realizes the concept of "human-powered range extension," enabling this invention to perfectly match the charging needs of high-end electric two-wheelers. Its "adjustable" (programmable) feature ensures future adaptability of the technology.

[0043] Interaction layer optimization: Through real-time voice interaction, complex power status and charging process are transformed into intuitive and user-friendly voice feedback, which greatly improves the ease of use, fun and user experience of the device, especially suitable for outdoor, emergency and other scenarios where visual attention may be lacking or blind operation is required.

Claims

1. A portable method for generating electricity by alternating footsteps and pivoting the center of gravity, characterized in that... Includes the following steps: S1: Collect the left and right pedaling movements, which are driven by the left and right shifts of the human body's center of gravity and occur alternately over time. S2: Convert the left and right pedaling actions into corresponding left and right linear reciprocating forces, respectively; S3: Using a one-way transmission mechanism, the linear reciprocating power of the left and right paths is converted into intermittent rotational power in a single rotational direction, wherein the pedaling stroke drives the rotation, and the reset stroke causes the system to idle and separate. S4: The two intermittent rotational forces obtained in step S3 are combined and alternately transmitted to the same rotational axis, thereby coupling and generating a continuous, unidirectional composite rotational force. S5: Increase the speed of the synthesized rotational power; S6: Utilize the increased power to drive the generator and generate electricity.

2. The method according to claim 1, characterized in that, In step S3, the one-way transmission mechanism is a one-way bearing.

3. The method according to claim 1, characterized in that, In step S3, the one-way transmission mechanism is a ratchet mechanism.

4. The method according to any one of claims 1 to 3, characterized in that, In step S4, the "converging and alternately transmitting to the same rotation axis" is achieved by transmitting two intermittent rotational forces to the same output shaft.

5. The method according to claim 4, characterized in that, In step S5, the combined rotational power is increased by using multi-stage gear meshing.

6. The method according to claim 1, characterized in that, All power input in steps S1 to S6 comes solely from the alternating pedaling of the human body's center of gravity, requiring no external power source assistance.

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