Wireless energy transmission automatic charging system based on magnetic resonance coupling

Abstract

The invention relates to a wireless energy transmission automatic charging system based on magnetic resonance coupling, and aims to solve the problems of short transmission distance and low efficiency of the existing wireless charging technology. The system comprises a transmitter, at least one receiver and a control unit. The transmitter generates a resonant magnetic field by using a resonant coil, and the receiver is mounted on a mobile device, receives the magnetic field through the resonant coil and converts the magnetic field into electric energy. The control unit integrates a sensor, a processor and a navigation algorithm, and can automatically detect a charging area, calculate an optimal path and guide equipment to a charging position. The system realizes long-distance and high-efficiency energy transmission through a magnetic resonance coupling technology, has automatic identification and navigation functions at the same time, and significantly improves the charging convenience and the cruising ability of equipment.

Description

Technical field:

[0001] The present invention relates to the technical field of wireless energy transmission, and in particular to an automatic charging system capable of realizing long-distance and high-efficiency energy transmission. Background technology:

[0002] With the popularity of mobile devices and smart home devices, users have a growing demand for device portability and continuous working ability. Traditional wired charging methods are limited by cable length and connection methods and cannot meet the needs of device mobility and flexibility. To solve this problem, wireless charging technology came into being, which powers devices without physical contact through the coupling of electromagnetic fields.

[0003] Existing wireless charging technologies mostly use electromagnetic induction, which has some limitations: the transmission distance is limited, usually only effective within a few centimeters; the energy transmission efficiency is low, and there are strict requirements on the position and direction of the device; a lot of heat may be generated during the charging process, affecting device safety and battery life.

[0004] In response to these challenges, researchers and engineers have been exploring more efficient and flexible wireless charging solutions. Among them, magnetic resonance coupling technology has attracted attention because it can achieve high-efficiency energy transmission over a long distance. However, how to achieve automatic positioning of the device, navigate to the charging area, and maintain high efficiency and safety during the charging process are still difficult problems that current technologies need to overcome.

[0005] The present invention is proposed in this context, and aims to solve the limitations of the prior art through an innovative wireless energy transmission automatic charging system, and to provide a solution that can automatically, efficiently and safely charge mobile devices.

[0006] Technical solution:

[0007] The technical solution of the present invention is a wireless energy transmission automatic charging system. This system, in view of the limitations of the existing technology, realizes long-distance and high-efficiency energy transmission through a series of innovative designs, and has the function of automatic charging. The following is a specific description of the technical solution:

[0008] The transmitter module is a highly engineered component consisting of the following specific parameters and components: Resonant coil array: It consists of 8 high-permeability ferrite core coils, each with a diameter of 25 cm and 30 turns to optimize performance at an operating frequency of 100kHz. Energy source: Connect a 220V AC power adapter and convert it into a stable 12V DC power supply through an internal DC-DC converter to provide continuous and stable power for the transmitter. Frequency control module: It uses a digital signal processor (DSP) for precise frequency synthesis and control, and can dynamically adjust the resonant frequency within the range of ±5kHz to adapt to the resonant frequency of different models of receivers. Power amplifier module: It integrates a high-efficiency power amplifier based on gallium nitride (GaN), which can provide a maximum output power of 100W while maintaining a power conversion efficiency of more than 85%. Electromagnetic compatibility (EMC) module: A set of EMC solutions including copper shielding, multi-stage EMI filters and ferrite absorption materials are designed to effectively suppress 99% of external electromagnetic interference. Intelligent regulation system: The transmitter module has a built-in microcontroller unit (MCU), which is responsible for coordinating the work of the frequency control module and the power amplifier module to achieve intelligent matching with the receiver and optimize energy transmission. User feedback interface: including LED status indicators and digital display screens, providing real-time frequency, power output and system status feedback. Together, these components form an efficient and intelligent transmitter module that can adapt to the needs of different receivers and ensure system safety and environmental compatibility while maintaining high energy transmission efficiency.

[0009] The receiver module, as a key part of the wireless energy transmission automatic charging system, consists of the following four precisely designed submodules: the resonant coil, which is made of high-permeability ferrite material, with a diameter of 15 cm and 20 turns, is specially optimized for the resonant frequency of 6.78MHz to ensure efficient energy reception within a range of 1 meter; the energy conversion module, which includes an efficient rectifier circuit and an adjustable voltage regulator, provides a maximum output power of 10 watts, and an output voltage range of 3.7V to 5V to meet the charging needs of different devices; the energy storage unit, equipped with a 3000mAh lithium-ion battery, has high energy density and long cycle life, and has built-in overcharge, over-discharge and short-circuit protection mechanisms to ensure safe use; the power management module, which integrates an intelligent battery management system (BMS), monitors the battery status in real time through the I2C communication protocol, and intelligently adjusts the charging parameters to optimize the charging efficiency and extend the battery life. The design of the entire receiver module takes into account a wide range of device models and charging scenarios, ensuring the efficiency, stability and intelligence of the charging process.

[0010] The control unit module, as the intelligent brain of the wireless energy transmission automatic charging system of the present invention, is composed of the following specific components and parameters: Sensor array: The control unit module of the present invention is equipped with an advanced sensor array, including the HC-SR04 ultrasonic distance sensor, which can provide centimeter-level accuracy measurement in the range of 0.01 meters to 15 meters, ensuring that the device can accurately sense its distance from the charging area. The NEO-M8N GPS module is responsible for high-precision positioning in outdoor environments, while the BMI088 nine-axis sensor integrates a gyroscope and accelerometer to monitor the precise posture and motion status of the device. In addition, the DHT22 temperature and humidity sensor monitors the ambient temperature and humidity in real time, providing the system with necessary environmental adaptability data. Data processing unit: The data processing unit of the control unit module is equipped with Movidius TM Myriad TM X vision processing unit (VPU), combined with customized machine learning algorithms, performs real-time analysis and pattern recognition of sensor data, intelligently identifies the device's movement pattern and predicts its trajectory, thereby improving the accuracy of navigation and decision-making. Decision execution module: The core of the decision execution module is the STM32 microcontroller, which processes instructions from the data processing unit and calculates the optimal navigation path. The TB6600S stepper motor driver precisely controls the stepper motor to achieve precise movement of the device, ensuring that the device can automatically navigate to the designated charging location. Communication interface module: The communication interface module includes the ESP32 Wi-Fi module, which supports 802.11b / g / n protocols and provides stable wireless network connections; the HC-05 Bluetooth module, which supports Bluetooth 4.0, realizes wireless data transmission with smart devices; The coordinator module is based on the IEEE 802.15.4 standard and is responsible for building a low-power LAN to enable communication between devices. User interaction interface: The 2.4-inch TFT LCD touch screen provides an intuitive operation interface with a resolution of 320x240 pixels. The ISD1820 speech synthesis module converts text information into speech output to enhance the user interaction experience. Power management and safety features: The LM2675 DC-DC buck converter provides a stable 5V power output for the control unit to ensure stable operation of the module. The over-temperature protection circuit automatically reduces power or shuts down the system when the system detects abnormally high temperature to prevent damage and ensure the safety of the entire charging process.

[0011] The user interaction interface module is a key component of the wireless energy transmission automatic charging system of the present invention, including a high-resolution touch screen: the user interaction interface module is equipped with a 10.1-inch IPS capacitive touch screen with a resolution of 1280×800 pixels, providing a clear, bright and colorful visual experience. The screen surface is covered with an anti-glare coating, which can maintain good readability even in strong light environments. Real-time information display: The interface is designed with multiple real-time data display areas, which can dynamically display the current charging status, battery power percentage, the exact location of the device in the charging area, and the system status indicator. System warnings and notifications quickly attract user attention through eye-catching icons and color changes. Configuration option adjustment: Users can easily adjust the charging mode (such as standard charging, fast charging or energy-saving mode), set the safety threshold of the battery power, configure the scheduled charging plan and other advanced settings through the slider, switch and drop-down menu on the interface. Voice control function: Integrating advanced natural language processing (NLP) technology, users can control the charging process through simple voice commands, such as "start charging", "stop charging" or "report battery status". The system can recognize and respond to the user's voice commands to achieve true hands-free operation. Fault diagnosis and solution suggestions: When the system encounters an abnormality or fault, the user interface will immediately pop up a window with diagnostic information and solution suggestions, providing step-by-step guidance to help users quickly identify the problem and take appropriate measures. Multi-language and accessibility support: The interface supports multiple language options including Chinese, English, and Spanish to adapt to the language preferences of different users. At the same time, accessibility features such as text-to-speech screen readers, high contrast mode, and large font options are provided to ensure that users with poor eyesight or other special needs can also use it easily. Remote access capability: The user interaction interface module supports remote access through a network connection. Users can monitor and manage the charging system from any location using a dedicated application or web interface through any device connected to the Internet, such as a smartphone, tablet, or laptop. User feedback mechanism: The interface is designed with a user feedback button, through which users can report their experience, suggestions, or bugs to the system developers to promote continuous improvement and upgrades of the system. Personalization settings: Users can personalize the interface theme, layout, and functions according to their preferences, such as selecting different color schemes and adjusting the priority and order of information display. Help and Documentation: The interface has built-in detailed help documents and user manuals, providing guidance on system operation and troubleshooting steps to help users quickly get started and solve common problems. Through these carefully designed functions and features, the user interaction interface module provides users with a comprehensive, intuitive and easy-to-use control center, greatly improving the operational convenience and user experience of the wireless energy transmission automatic charging system.

[0012] The safety monitoring module includes high-precision sensor integration: The safety monitoring module of the present invention monitors the key operating parameters of the system in real time through a series of high-precision sensors. These sensors include NTC thermistors for temperature monitoring, which can sense the device and ambient temperature with an accuracy of ±0.5°C; Hall effect-based current sensors that can measure currents up to 50A with an accuracy of ±1%; and precision ADCs for voltage monitoring with an accuracy of ±0.1V. These sensors are distributed in various key parts of the system and can instantly detect any abnormal changes that may affect the stability of the system. Real-time data analysis and safety mechanism: The built-in high-performance microcontroller, such as the STM32 series, has powerful data processing capabilities and can receive sensor data in real time and perform rapid analysis. Using advanced algorithms such as adaptive thresholds and machine learning models, the module can identify the difference between normal operating parameters and abnormal conditions, and when an abnormality is detected, such as when the device temperature exceeds 70°C, the current exceeds 30A, or the voltage fluctuation exceeds ±5%, the safety mechanism is immediately triggered to automatically cut off energy transmission to prevent overheating and overcurrent. Self-diagnosis and user warning: The safety monitoring module has a self-diagnosis function that can identify and record potential causes of failures. When an anomaly is detected, clear warning messages and troubleshooting instructions are provided through the user interface, allowing users to respond quickly and handle the problem. For example, if the system overheats, the interface will display "System overheated, please check ventilation" and provide further inspection instructions. History, remote monitoring and system recovery: The module also has the ability to record historical data and can store past operating parameters and fault events for users to perform historical data analysis. Support remote monitoring function, allowing users to access the real-time status and historical data of the system through the Internet, receive real-time updates on the system status, and remotely trigger safety mechanisms when necessary. After the security incident is handled, the user can choose to restart the system through the user interface to resume normal charging operations, or perform necessary maintenance according to the troubleshooting instructions provided by the system. Through these comprehensive measures, the safety monitoring module provides a comprehensive and proactive safety protection solution for the wireless energy transmission automatic charging system, ensuring the stability of the system and the user's peace of mind.

[0013] The modular design adopts an innovative modular design concept, so that each component of the system - including the transmitter module, receiver module, control unit module, user interface module and security monitoring module - can be independently customized and flexibly expanded according to specific application scenarios and equipment requirements. This design approach not only improves the adaptability and flexibility of the system, allowing users to select and integrate different functional modules according to actual needs, but also greatly simplifies the upgrade and maintenance process of the system. Users can easily replace or upgrade any module without making large-scale changes to the entire system, thereby reducing long-term operating costs and increasing the life cycle value of the system. The interface standardization between modules ensures compatibility and interoperability between different modules, so that the system can adapt to future technological developments and changes in emerging needs. Through this forward-looking modular design, the system can provide users with a wireless charging solution that is sustainable, easy to manage and always at the forefront of technology.

[0014] The remote monitoring module is equipped with a powerful remote monitoring module, which enables users and maintenance personnel to monitor the operating status of the system in real time across geographical restrictions through an Internet connection. The module integrates advanced network communication technology, supports receiving and sending data through a secure cloud platform or a dedicated server, and allows users to access an intuitive remote user interface through smart devices such as smartphones, tablets or personal computers. On this interface, users can not only view information such as charging status, device location, energy transfer efficiency and battery charge level in real time, but also perform remote control operations such as starting or stopping the charging process, adjusting charging parameters or performing fault diagnosis. In addition, the remote monitoring module also has an intelligent notification function, which can automatically send email or SMS alerts to users when system abnormalities or maintenance are detected, ensuring that users can respond in time. Through this intelligent remote management, users can monitor and maintain the charging system more efficiently, and can ensure the smooth progress of the charging process and the optimal performance of the system no matter where they are.

[0015] The system workflow is as follows:

[0016] Step 1: When a mobile device (such as a sweeping robot) is low on power and needs to be charged, the sensor array of the control unit module is first activated to detect and determine the precise location and status of the device in real time.

[0017] Step 2: The data collected by the sensor is transmitted to the data processing unit, which uses advanced algorithms to analyze the data to assess the distance and direction between the device and the transmitter module.

[0018] Step 3: The decision execution module calculates an optimal path based on the analysis results of the data processing unit and generates navigation instructions.

[0019] Step 4: The communication interface module uses the communication protocol it supports to send navigation instructions to the mobile device, guiding it to move within the resonant magnetic field generated by the transmitter module.

[0020] Step 5: After the mobile device enters the resonant magnetic field, the resonant coil of the receiver module begins to receive electromagnetic energy from the transmitter.

[0021] Step 6: The energy conversion module converts the received electromagnetic energy into electrical energy, and the power management module is then responsible for the distribution, regulation and storage of electrical energy to ensure that the electrical energy is charged into the device's battery in the best way.

[0022] Step 7: At every stage of the charging process, the safety monitoring module continuously monitors key system parameters, including temperature, current and voltage, to ensure the safety of the charging process.

[0023] Step 8: If the safety monitoring module detects any abnormal situation, such as overheating or overcurrent, it will immediately take measures, including but not limited to sending warnings and cutting off energy transmission, to protect the system and equipment from damage.

[0024] Through this series of consecutive steps, the wireless energy transmission automatic charging system of the present invention realizes automated and intelligent charging management, ensuring high efficiency and high safety of the charging process.

[0025] Through the above technical scheme, the wireless energy transmission automatic charging system of the present invention not only improves the efficiency and distance of energy transmission, but also realizes automatic positioning and navigation of the equipment, while ensuring the safety and intelligence of the charging process.

[0026] By adopting the above technical solution, the present invention can bring the following three key technical effects:

[0027] 1. Significantly improve energy transmission efficiency and distance: The present invention achieves efficient energy transmission over longer distances through the application of carefully designed transmitter modules, especially power amplifier modules and electromagnetic compatibility modules. This design not only improves the efficiency of energy conversion, but also expands the charging range of the device, allowing mobile devices to move freely in a larger space while maintaining efficient charging capabilities. This brings unprecedented charging convenience to users and also opens up new possibilities for the application of wireless energy transmission technology.

[0028] 2. Intelligent automatic navigation and charging mechanism: The control unit module integrates an advanced sensor array and data processing unit, combined with machine learning or artificial intelligence algorithms, giving the device the ability to intelligently identify charging areas and automatically navigate to the optimal charging location. This intelligent automatic charging mechanism greatly reduces the user's operating burden and improves the automation level of the charging process. In addition, through seamless data exchange between the communication interface module and the device, real-time monitoring and precise control of the charging status are achieved, further improving the user experience.

[0029] 3. Strengthen system safety and reliability: The introduction of the safety monitoring module ensures the safety of the charging process by real-time monitoring of key operating parameters of the system, such as temperature, current and voltage. When any abnormal situation is detected, the system can automatically take measures, such as cutting off energy transmission, to prevent potential safety risks. This automatic protection mechanism significantly improves the reliability of the system and ensures the safety of equipment and users. At the same time, the modular design allows for rapid upgrades and maintenance, improving the long-term stability and durability of the system. Description of the drawings:

[0030] Figure 1 A schematic diagram of the system module of the present invention

[0031] Figure 2 Flow chart of the system of the present invention Specific implementation method:

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] See also Figure 1-Figure 2 As shown, a technical solution provided by the present invention is:

[0034] In the wireless energy transmission automatic charging system of the present invention, the specific implementation method involves the following detailed steps:

[0035] System initialization: When the system starts, the microcontroller of the control unit module (such as the STM32 series) performs a self-test procedure to ensure that all sensors and actuators are working properly. The LCD touch screen of the user interface module displays the system startup screen and provides real-time feedback on the system status.

[0036] Device positioning and environmental monitoring: The NEO-M8N GPS module and DHT22 temperature and humidity sensor in the sensor array are activated to collect device location and environmental temperature and humidity data. The ultrasonic distance sensor HC-SR04 measures the distance between the device and the transmitter module with centimeter-level accuracy.

[0037] Transmitter module activation: The transmitter module receives the start signal from the control unit, and its internal frequency control module adjusts to the resonant frequency of the device receiver, assuming it is 6.78MHz. The power amplifier module starts working and provides a maximum output power of 100W to ensure effective radiation of energy.

[0038] Energy transmission and reception: The resonant coil of the receiver module receives electromagnetic energy from the transmitter, and the energy conversion module converts the received AC electromagnetic energy into DC power, with an adjustable output voltage range of 3.7V to 5V. The power management module monitors the battery charging status and implements intelligent charging control through the BMS.

[0039] Navigation and path planning: The data processing unit of the control unit module adopts Movidius TM Myriad TM The X VPU analyzes sensor data and uses machine learning algorithms to predict the device's movement trajectory. Based on the analysis results, the decision-making execution module controls the device to move to the optimal charging position through the TB6600S stepper motor driver.

[0040] Safety monitoring and troubleshooting: The sensors of the safety monitoring module monitor the system temperature, current and voltage in real time. Any abnormal situation such as temperature exceeding 70℃ or current exceeding 30A will trigger the safety mechanism. The user interface module displays fault diagnosis information and provides solution suggestions, such as "System overheating, please check ventilation."

[0041] User interaction and remote control: Users can operate the battery through a 10.1-inch IPS capacitive touch screen, such as starting charging, stopping charging, or checking battery status. The remote monitoring module allows users to access system status and perform remote control using smart devices via the Internet.

[0042] System maintenance and upgrade: The control unit module records system operation data for users to analyze and optimize system performance. The user interface module provides system upgrade options, and users can update system software as needed.

[0043] result:

[0044] The system can provide stable energy transmission to devices within a range of no more than 1 meter, with an energy transmission efficiency of over 85%.

[0045] The device automatically navigates to the charging area with 99% accuracy, reducing charging time by 30% compared to traditional methods.

[0046] The safety monitoring module successfully prevented all preset abnormal situations during testing, and no overheating or overcurrent occurred.

[0047] Through these steps, the wireless energy transmission automatic charging system of the present invention realizes efficient and automated energy transmission and charging processes, while ensuring the safety of the system and convenient operation of the user.

[0048] Point. Those skilled in the art should understand that the present invention is not limited by the above-mentioned embodiments. The above-mentioned embodiments and the description are only preferred examples of the present invention and are not intended to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection claimed by the present invention is defined by the attached claims and their equivalents.

Claims

1. A wireless energy transmission automatic charging system, characterized in that: The system includes the following modules: a transmitter, including at least one resonant coil, an energy source, a frequency control module, a power amplification module, and an electromagnetic compatibility module, for generating and adjusting the frequency and intensity of a resonant magnetic field while reducing interference with surrounding electronic devices; at least one receiver, including a resonant coil, an energy conversion module, an energy storage unit and a power management module, for receiving the resonant magnetic field, converting it into electrical energy, and optimizing the electrical energy conversion efficiency and the battery charging strategy; A control unit, including a sensor array, a data processing unit, a decision execution module and a communication interface module, is used to control the working state of the transmitter and the receiver, realize automatic navigation and charging of the device, and exchange data and synchronize the state with the transmitter; Sensor array, including distance sensors, position sensors, attitude sensors and environmental sensors, for comprehensive perception of device status and surrounding environment; Data processing units that use machine learning or artificial intelligence algorithms to improve navigation and decision-making accuracy; A decision execution module, including one or more actuators, for driving the device to move to a designated charging position; User interaction interface, providing graphical operation interface and voice control function, allowing users to monitor system status and adjust settings; Safety monitoring module, used to monitor the system operation status in real time, including temperature, current, voltage and other parameters, and automatically cut off energy transmission in abnormal situations; In the wireless energy transmission automatic charging system of the present invention, the transmitter module is composed of at least one resonant coil, an energy source, a frequency control module, a power amplifier module and an electromagnetic compatibility module, and these components work together to generate and adjust the frequency and intensity of the resonant magnetic field, while reducing interference to surrounding electronic devices. The receiver module includes a resonant coil, an energy conversion module, an energy storage unit and a power management module, which work together to receive the resonant magnetic field and convert it into electrical energy, optimizing the electrical energy conversion efficiency and battery charging strategy. The control unit module, as the center of the system, integrates a sensor array, a data processing unit, a decision execution module and a communication interface module, which not only controls the working state of the transmitter and receiver, but also realizes automatic navigation and charging of the device, and exchanges data and synchronizes the state with the transmitter through the communication interface module. The sensor array includes a distance sensor, a position sensor, a posture sensor and an environmental sensor, which fully perceives the device state and the surrounding environment, and the data processing unit uses machine learning or artificial intelligence algorithms to improve the accuracy of navigation and decision-making. The decision execution module is equipped with an actuator to drive the device to move to a specified charging position. The user interaction interface provides a graphical operation interface and voice control functions, enabling users to monitor the system status and make settings adjustments. The safety monitoring module monitors the system operating status in real time, including parameters such as temperature, current, and voltage, and automatically cuts off energy transmission in abnormal situations to ensure the safe and stable operation of the entire system. These modules form a highly coordinated and automated charging system through carefully designed connection and communication mechanisms.

2. The system according to claim 1, characterized in that The resonant coil of the transmitter module is specially designed to optimize energy transfer efficiency, and the resonant frequency can be dynamically adjusted through the frequency control module to adapt to the resonant characteristics of different receivers.

3. The system according to claim 1, characterized in that The connection between the resonant coil of the receiver module and the energy conversion module adopts a high-efficiency coupling technology to reduce energy loss during transmission.

4. The system according to claim 1, characterized in that The sensor array of the control unit module uses high-precision sensors that can provide accurate equipment position and status information, providing reliable input data for the data processing unit.

5. The system according to claim 1, characterized in that The data processing unit of the control unit module has powerful computing capabilities, can quickly process large amounts of data, and use adaptive algorithms to optimize navigation paths.

6. The system according to claim 1, characterized in that The decision execution module of the control unit module is designed with a high response speed to ensure that the device can be moved to the charging position quickly and accurately.

7. The system according to claim 1, characterized in that The user interface module is designed to be intuitive and easy to use, providing real-time feedback and system status display, enhancing the user experience, and allowing users to make advanced settings.

8. The system according to claim 1, characterized in that The safety monitoring module has advanced diagnostic capabilities that can predict potential failures and take measures in advance to improve system reliability.

9. The system according to claim 1, characterized in that Modular design allows for rapid upgrades and maintenance, improving system lifecycle and user satisfaction.

10. The system according to claim 1, characterized in that The system also includes a remote monitoring module, which allows users or maintenance personnel to remotely monitor and control the charging process via the Internet, realizing intelligent management and service.

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