Wireless simultaneous transmission system and method

Abstract

The invention provides a wireless simultaneous transmission system and method. The system comprises a microwave long-distance transmitting base station, an intelligent relay sticker and a resonance receiver. The microwave long-distance transmitting base station drives an antenna to radiate electromagnetic wave energy through a power amplifier, electromagnetic waves are coupled, received and rectified by an intelligent relay sticker and then supply power to an inverter, the inverter drives a transmitting coil and a receiver coil to resonate, energy is transmitted in a magnetic coupling mode, and a receiver is installed on implantable medical equipment to supply power to the implantable medical equipment. Low-power-consumption two-way information transmission is carried out while unidirectional energy supply is carried out, two-way communication is carried out between the receiver and the intelligent relay sticker through low-power-consumption NFC, the base station directly modulates the amplitude of an emission signal and transmits the amplitude to the relay sticker, the rectifier carries out envelope demodulation on the amplitude of the emission signal, and low-rate communication is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of wireless power transmission, and in particular to a wireless simultaneous transmission system and method. Background Art

[0002] Existing implantable devices rely primarily on batteries for power. Some research has also explored harnessing the body's thermal or mechanical energy for power, but the energy density is too low to achieve independent power supply. A viable power supply option is wireless energy transmission. Wireless energy transmission technology can transfer energy to implantable devices through methods such as electromagnetic induction or resonant coupling, eliminating the need for batteries. This method can provide a continuous energy supply to implantable devices via an external device or base station.

[0003] Implantable devices communicate with external devices via Bluetooth, a technology that consumes significant power and reduces their lifespan. Existing technologies have also proposed solutions that combine NFC communication with coupled coil energy transfer, which can reduce communication power consumption and extend the lifespan of implantable devices.

[0004] In the existing technology, wireless energy transmission technology consists of two parts, a transmitting base station part and an energy receiving part. The transmitting part includes an inverter and a transmitting coil. The inverter converts direct current into a high-frequency signal required for coil excitation, and the transmitting coil is excited to generate an alternating magnetic field. The energy receiving part includes a receiving coil and a rectifier. The receiving coil couples the magnetic field to generate an alternating signal, and converts it into the direct current required by the implanted device through the rectifier. The implanted device limits the size of the receiving coil (on the order of centimeters). The energy transmission capacity of the coil is limited by its own size, and the relative position and relative angle of the coil are also limited. Therefore, the user of the device has difficulty in moving during use.

[0005] Current wireless energy transmission technologies require both an external power supply and a base station close to the implanted device. Furthermore, the external power supply is often too large to be fixed to the human body, and the device itself is powered by a connecting cable, preventing the user from moving freely during charging. For example, prior art CN208229217U discloses a wireless repeater for an implantable medical device, but this still requires a connecting cable to power the external relay.

[0006] Prior art CN217522639U discloses a solution to the problem of insufficient energy transmission distance between implantable medical devices and power supply equipment. While this solution extends the energy transmission distance through a relay resonant coil, it is still limited to the size and transmission distance of the coil itself. The coil is still used for relaying, and while a large coil is introduced, only the coupling coefficient is increased. The relay coil is attached to the skin and is necessarily small, resulting in a limited improvement in the coupling coefficient. The base station still needs to be near the skin, failing to achieve long-distance wireless power supply. Summary of the Invention

[0007] To address these challenges, the present invention proposes a system and method for wireless simultaneous transmission of power and information, achieving integrated wireless power transmission and communication. This system, in turn, addresses the limitations of existing implantable devices, including the inability to provide long-distance wireless power supply. It also provides a technical solution for low-power communication, thereby alleviating the mobility issues faced by device users.

[0008] To achieve this goal, the present invention incorporates a smart relay sticker between the energy transmitter base station and the implanted device. This sticker, which contains neither a power source nor a connecting cable, can be applied to the skin where the implanted device resides. Energy is generated by the transmitter base station, which the sticker converts into a form compatible with the implanted device.

[0009] Specifically, the present invention proposes a wireless simultaneous interpretation system, including an intelligent relay sticker, a microwave long-distance transmission base station, and a resonant receiver;

[0010] The smart relay sticker includes four layers: the first layer is a receiving antenna array, the second layer is a flexible PCB board, the third layer is a transmitting coil, and the fourth layer is a glue layer. The flexible PCB board is printed with a first rectifier and inverter circuit. The receiving antenna couples and receives electromagnetic wave energy, supplies power to the inverter through the first rectifier, and generates an alternating magnetic field through the transmitting coil.

[0011] The long-distance transmission base station includes a microwave power source, a phased network, a power amplifier and a transmitting antenna array to generate electromagnetic waves radiated to the relay sticker;

[0012] The resonant receiver includes a resonant coil, a second rectifier, a power management circuit, and a connection port for a required power supply device, and obtains energy by resonating with the transmitting coil.

[0013] Furthermore, the microwave power source provides a signal of the required electromagnetic wave frequency, which is connected to the input end of the power amplifier. The output end of the power amplifier is connected to the feeding end of the transmitting antenna array and the phase-controlled network. The bias DC power supply of the power amplifier provides energy for the entire system, and the axial direction of the transmitting antenna array points to the relay sticker.

[0014] Furthermore, the feeding end of the antenna array is connected to the input end of a first rectifier, the output end of the first rectifier is connected to the input end of the inverter through a power management circuit, and the output end of the inverter is connected to the transmitting coil.

[0015] Furthermore, the resonant coil is connected to the input end of the second rectifier.

[0016] Furthermore, the output end of the second rectifier is connected to the implant device through a power management circuit to provide power for the implant device.

[0017] Furthermore, the system performs NFC communication through a transmitting coil and a resonant coil to transmit information to a smart relay sticker, and the smart relay sticker uses a backscatter modulation method to transmit the information to a transmitting base station.

[0018] Furthermore, the first rectifier can perform impedance modulation by changing the resistance value of the load end, thereby changing the input impedance of the antenna. The amplitude and phase of the signal reflected by the antenna change with the impedance modulation, thereby realizing the transmission of information to the transmitting base station.

[0019] Furthermore, the information is transmitted to the transmitting base station by changing the first rectifier matching circuit to perform modulation or using a radio frequency switch to perform modulation at the antenna feeding end.

[0020] In addition, the present invention also proposes another wireless simultaneous interpretation method, the system structure of which is the wireless simultaneous interpretation system as described in claim 1, which improves the receiving power by phase-controlled focused beams or by multi-base station beam phase-controlled beam concentration.

[0021] The present invention also provides a wireless simultaneous transmission method. A microwave long-distance transmission base station uses a power amplifier to drive an antenna to radiate electromagnetic wave energy. This electromagnetic wave is coupled, received, and rectified by a smart relay sticker to power an inverter. The inverter drives the transmitting coil to resonate with the receiver coil, transmitting energy through magnetic coupling. The receiver is installed on an implantable medical device to power it. Low-power bidirectional information transmission is performed simultaneously with unidirectional energy supply. Bidirectional communication between the receiver and the smart relay sticker is achieved via low-power NFC. The base station directly modulates the amplitude of the transmitted signal and transmits it to the relay sticker. A rectifier then performs envelope demodulation to achieve relatively low-speed communication.

[0022] The present invention proposes a wireless simultaneous transmission system and method for wireless energy information simultaneous transmission of implantable devices using smart relay stickers, which can achieve long-distance wireless power supply for implantable devices. The wireless energy transmission system includes a microwave long-distance transmission base station, a smart relay sticker, and a resonant receiver. The long-distance transmission base station includes a microwave power source, a phased network, a power amplifier, and a transmitting antenna array. The base station can generate electromagnetic waves that radiate toward the relay sticker. The smart relay sticker includes a receiving antenna array, a flexible PCB board, a transmitting coil, and an adhesive layer. The receiving antenna couples and receives electromagnetic wave energy. The flexible PCB board rectifies the electromagnetic wave through a first rectifier to power an inverter, and generates an alternating magnetic field through the transmitting coil. The relay sticker can be attached to the skin or clothing in the power supply area. The resonant receiver includes a resonant coil, a second rectifier, a power management circuit, and a connection port for the required power supply equipment. It obtains energy by resonating with the sticker transmitting coil and powers the implanted device through rectification. Furthermore, while providing power to the implantable device remotely, the system's transmitting and receiving coils communicate bidirectionally via low-power NFC. The receiving antenna array modulates information via extremely low-power backscatter modulation, which is then demodulated via a first rectifier. The transmitting base station modulates the transmission power to achieve information modulation, while a conventional receiver performs information demodulation. Combining NFC and backscatter enables bidirectional communication between the implantable device and a remote base station. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 The present invention shows that the intelligent relay sticker is used to realize the long-distance simultaneous interpretation system.

[0024] Figure 2 Shows the modular principle diagram of the resonant receiver of the present invention

[0025] Figure 3 Shows the modular principle diagram of the long-distance transmission base station of the present invention

[0026] Figure 4 Showing the modular principle diagram of the intelligent relay sticker of the present invention

[0027] Figure 5 Schematic diagram showing the wide-angle, large-range, and long-distance energy supply of the present invention

[0028] Figure 6 A schematic diagram of a solution for powering a higher power implantable device according to the present invention is shown. DETAILED DESCRIPTION

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings 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. The following description of at least one exemplary embodiment is actually only illustrative and is in no way intended to limit the present invention and its application or use. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative work are within the scope of protection of the present invention.

[0030] Reference will now be made in detail to various embodiments of the present invention, examples of which are shown in the accompanying drawings and in the following description. Although the present invention is described in conjunction with exemplary embodiments, it should be understood that this description is not intended to limit the present invention to those exemplary embodiments. On the contrary, the present invention is intended to cover not only those exemplary embodiments, but also various replacements, modifications, equivalents and other embodiments that may be included within the spirit and scope of the present invention as defined by the appended claims.

[0031] This invention is a system that combines long-distance microwave power transmission with resonant coil energy transmission. Based on a flexible device attached to the skin surface, it enables contactless energy and information transmission across the epidermis and bones, enabling long-distance energy and information transmission.

[0032] As attached Figure 1 As shown, the wireless energy transmission system of the present invention includes an intelligent relay sticker 01, a microwave long-distance transmission base station 02, and a resonant receiver 03.

[0033] The antenna array in the transmitting base station 02 and the antenna array in the smart relay sticker 01 operate at the same frequency. Specifically, energy from the transmitting base station 02 excites electromagnetic waves that propagate through space to the relay sticker 01. The resonant coil in the resonant receiver 03 and the resonant coil in the smart relay sticker 01 are set to the same resonant frequency. Energy from the smart relay sticker 01 excites a magnetic field that propagates through space to the resonant receiver 03.

[0034] As attached Figure 2 As shown, the resonant receiver 03 includes a resonant coil 301, a rectifier 302, a connection port 303 for the required power supply, and a power management circuit 304. It can obtain energy through resonance with the transmitting coil 104 and use rectification to power the implanted device. The resonant coil 301 in the resonant receiver 03 receives the alternating magnetic field energy excited by the transmitting coil 104 of the smart relay sticker 01, generating a resonant voltage signal. The rectifier 303 converts this voltage into direct current (DC), and the power management circuit 304 converts the voltage into the DC or low-frequency signal required by the implanted device.

[0035] As attached Figure 3As shown, the microwave long-distance transmission base station 02 includes a microwave power source 201, a phased network 202, a power amplifier 203 and a transmitting antenna array 204, which can generate electromagnetic waves radiated to the relay sticker.

[0036] The power source 201 provides the radio frequency signal required for excitation, and the power amplifier 203 amplifies the signal to generate an excitation signal for the high-gain antenna. The signal is directionally radiated to the smart relay sticker by the transmitting antenna array 204. The radiation pattern is related to the phase of each antenna unit, and the phase is controlled by the phase-controlled network 202.

[0037] As attached Figure 4 As shown, the smart relay sticker 01 comprises four layers: the first layer is a receiving antenna array 101 , the second layer is a flexible PCB printed with rectifier 102 and inverter 103 circuits, the third layer is a transmitting coil 104 , and the fourth layer is an adhesive layer 105 .

[0038] The antenna array 101 couples and receives electromagnetic wave energy, and the rectifier 102 (which can be a radio frequency rectifier) ​​converts the electromagnetic wave energy into direct current to supply power to the inverter 103. The inverter generates an excitation signal and generates an alternating magnetic field through the transmitting coil 104. The adhesive layer is attached near the receiver;

[0039] Furthermore, the present invention also proposes a wireless simultaneous interpretation method, as shown in the attached Figure 4 As shown, the base station provides unidirectional power to the implanted device. Transmitting base station 02 drives the antenna through a power amplifier to radiate electromagnetic wave energy. The electromagnetic wave is coupled, received, and rectified by smart relay sticker 01 to power the inverter. The inverter drives the transmitting coil to resonate with the receiver coil 03, transferring energy through magnetic coupling. Receiver 03 is installed on the implanted medical device to power it. While providing unidirectional power, low-power bidirectional information transmission is also possible. Receiver 03 and smart relay sticker 01 communicate bidirectionally via low-power NFC. Base station 02 directly modulates the amplitude of the transmitted signal. After transmission to relay sticker 01, the rectifier performs envelope demodulation to achieve lower-speed communication. Modulating the rectifier load or matching branch can simply achieve lower-speed communication, but it is sufficient to match the NFC communication rate.

[0040] In this invention, each layer of the smart relay sticker uses a flexible substrate design, ensuring it can adhere to clothing or skin. The smart relay sticker converts microwave power into high-frequency power within the system, combining the strong penetration of resonant coils with the long range and flexibility of microwaves.

[0041] As attached Figure 5As shown, the wireless energy transmission system of the present invention can simultaneously charge multiple implantable devices, even those of multiple users. The remote transmitting base station uses analog and digital phase control to achieve multi-beam focusing and beam scanning, enabling simultaneous charging of multiple devices and users.

[0042] As attached Figure 6 As shown, the wireless communication system of the present invention can improve the receiving power by phase-controlled focused beams, and can also improve the receiving power by multi-base station beam phase-controlled beam concentration to meet the energy requirements of some higher-power implantable devices.

[0043] The present invention uses a combination of antennas and coils for relaying, taking advantage of the antenna's ability to provide wireless power over long distances. It can achieve a distance increase of dozens of times through a small surface-mount device, and the distance can be further expanded by increasing the number of base stations, which can be placed in nearby living areas.

[0044] The present invention proposes a wireless simultaneous transmission system and method for wireless energy information simultaneous transmission of implantable devices using smart relay stickers, which can achieve long-distance wireless power supply for implantable devices. The wireless energy transmission system includes a microwave long-distance transmission base station, a smart relay sticker, and a resonant receiver. The long-distance transmission base station includes a microwave power source, a phased network, a power amplifier, and a transmitting antenna array. The base station can generate electromagnetic waves that radiate toward the relay sticker. The smart relay sticker includes a receiving antenna array, a flexible PCB board, a transmitting coil, and an adhesive layer. The receiving antenna couples and receives electromagnetic wave energy. The flexible PCB board rectifies the electromagnetic wave through a first rectifier to power an inverter, and generates an alternating magnetic field through the transmitting coil. The relay sticker can be attached to the skin or clothing in the power supply area. The resonant receiver includes a resonant coil, a second rectifier, a power management circuit, and a connection port for the required power supply equipment. It obtains energy by resonating with the sticker transmitting coil and powers the implanted device through rectification. Furthermore, while providing power to the implantable device remotely, the system's transmitting and receiving coils communicate bidirectionally via low-power NFC. The receiving antenna array modulates information via extremely low-power backscatter modulation, which is then demodulated via a first rectifier. The transmitting base station modulates the transmission power to achieve information modulation, while a conventional receiver performs information demodulation. Combining NFC and backscatter enables bidirectional communication between the implantable device and a remote base station.

[0045] The embodiments of the present invention described above are combinations of elements and features of the present invention. Unless otherwise mentioned, the elements or features may be considered as optional. Each element or feature may be put into practice without being combined with other elements or features. In addition, the embodiments of the present invention may be constructed by combining some elements and / or features. The order of operations described in the embodiments of the present invention may be rearranged. Some configurations of any one embodiment may be included in another embodiment, and may be replaced by the corresponding configurations of another embodiment. It is obvious to those skilled in the art that claims that do not have a clear reference relationship to each other in the appended claims may be combined into embodiments of the present invention, or may be included as new claims in amendments after submitting the present invention.

[0046] It should also be noted that, in this document, relationships such as first and second, etc., are used solely to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0047] The above description of the disclosed embodiments will enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein, but is to be construed in the widest possible manner consistent with the principles and novel features disclosed herein.

Claims

1. A wireless simultaneous interpretation system, characterized in that: Including smart relay stickers, microwave long-distance transmission base station, and resonant receiver; The smart relay sticker includes four layers: the first layer is a receiving antenna array, the second layer is a flexible PCB board, the third layer is a transmitting coil, and the fourth layer is a glue layer. The flexible PCB board is printed with a first rectifier and inverter circuit. The receiving antenna couples and receives electromagnetic wave energy, supplies power to the inverter through the first rectifier, and generates an alternating magnetic field through the transmitting coil. The long-distance transmission base station includes a microwave power source, a phased network, a power amplifier and a transmitting antenna array to generate electromagnetic waves radiated to the relay sticker; The resonant receiver includes a resonant coil, a second rectifier, a power management circuit, and a connection port for a required power supply device, and obtains energy by resonating with the transmitting coil.

2. The wireless simultaneous interpretation system according to claim 1, characterized in that: The microwave power source provides a signal of the required electromagnetic wave frequency and is connected to the input end of the power amplifier. The output end of the power amplifier is connected to the feeding end of the transmitting antenna array and the phase-controlled network. The bias DC power supply of the power amplifier provides energy for the entire system. The axial direction of the transmitting antenna array points to the relay sticker.

3. The wireless simultaneous interpretation system according to claim 1, wherein: The feeding end of the antenna array is connected to the input end of the first rectifier, the output end of the first rectifier is connected to the input end of the inverter through a power management circuit, and the output end of the inverter is connected to the transmitting coil.

4. The wireless simultaneous interpretation system according to claim 1, wherein: The resonant coil is connected to the input end of the second rectifier.

5. The wireless simultaneous interpretation system according to claim 4, characterized in that: The output end of the second rectifier is connected to the implant device through the power management circuit to provide power for the implant device.

6. The wireless simultaneous interpretation system according to claim 1, wherein: The system performs NFC communication through a transmitting coil and a resonant coil, and transmits information to a smart relay sticker. The smart relay sticker transmits the information to a transmitting base station using a backscatter modulation method.

7. The wireless simultaneous interpretation system according to claim 6, characterized in that: The first rectifier can perform impedance modulation by changing the resistance value of the load end, thereby changing the input impedance of the antenna. The amplitude and phase of the signal reflected by the antenna change with the impedance modulation, thereby realizing the transmission of information to the transmitting base station.

8. The wireless simultaneous interpretation system according to claim 6, characterized in that: The information is transmitted to the transmitting base station by changing the first rectifier matching circuit to perform modulation or using a radio frequency switch to perform modulation at the antenna feeding end.

9. A wireless simultaneous interpretation system, characterized in that: The system structure is the wireless simultaneous interpretation system as claimed in claim 1, which improves the receiving power by focusing the beam through phase control or by concentrating the beam through multi-base station beam phase control.

10. A wireless simultaneous interpretation method, characterized in that: The microwave long-distance transmission base station uses a power amplifier to drive the antenna to radiate electromagnetic wave energy. The electromagnetic waves are coupled and received by the smart relay sticker, and after rectification, they power the inverter. The inverter drives the transmitting coil and the receiver coil to resonate, transferring energy through magnetic coupling. The receiver is installed on the implantable medical device to provide power. While providing unidirectional energy, it also performs low-power bidirectional information transmission. The receiver and the smart relay sticker communicate bidirectionally via low-power NFC. The base station directly modulates the amplitude of the transmitted signal and transmits it to the relay sticker. The rectifier performs envelope demodulation to achieve lower communication rates.

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