Wireless power collection equipment

Abstract

The present invention relates to a wireless power supply acquisition device, which includes: an electrode connector for receiving experimental animal electroencephalogram (EEG) signals transmitted by external electrodes; a signal processing module for converting the experimental animal electroencephalogram (EEG) signals transmitted by the electrode connector into digital signals; a signal transmitter for receiving the digital signals transmitted by the signal processing module and uploading the digital signals to a PC host computer via a wireless router; a power supply component for receiving external ultrasonic emission signals, converting mechanical energy into electrical energy for storage, and supplying power to the signal processing module and the signal transmitter; and a setting module for detecting and adjusting the power supply to the signal processing module. The device does not require the use of wires or built-in power supplies for power supply, which not only avoids the restrictions on the activities of experimental animals caused by wires or built-in power supplies, but also extends the working time of the wireless power supply acquisition device, ensuring that the wireless power supply acquisition device can carry out long-term uninterrupted experimental animal EEG signal acquisition experiments.

Description

Technical Field

[0001] The present invention relates to the field of neuroscience, and in particular to a wireless power supply collection device. Background Art

[0002] In the field of neuroscience, collecting neuronal discharge signals is an essential means of studying neuroscience, and electrophysiological experiments that collect EEG signals from experimental animals are an important experimental method for conducting neuroscience research.

[0003] In electrophysiological experiments involving the collection of EEG signals from experimental animals, researchers typically use wired or battery-powered wireless signal acquisition devices to collect data. Wired acquisition devices require a power supply via wires, which restricts the animal's range of movement and affects EEG data. Furthermore, wires are easily damaged by the animal, shortening the device's lifespan and creating a risk of circuit damage. While battery-powered wireless signal acquisition devices do not restrict the animal's range of movement, their built-in power supplies are bulky, increasing discomfort and stress for the animal when wearing them, impacting EEG data. Currently, some battery-powered wireless signal acquisition devices have reduced the size of their built-in power supplies. For example, Chinese Patent ZL201010124352.X discloses a wireless, mobile, real-time EEG acquisition device for small animals. This device uses several button batteries as its internal power source and collects EEG signals via wireless transmission. While this reduces weight, the battery life is shortened, making it difficult to conduct long-term EEG acquisition experiments on experimental animals. Summary of the Invention

[0004] To this end, the present invention provides a wireless power supply acquisition device, which can solve the problem of short power supply life of the EEG signal acquisition device in the prior art.

[0005] To achieve the above objectives, the present invention provides a wireless power collection device, comprising:

[0006] An electrode connector, used to receive EEG signals of experimental animals transmitted by external electrodes;

[0007] a signal processing module connected to the electrode connector and configured to convert the EEG signal of the experimental animal transmitted by the electrode connector into a digital signal;

[0008] A signal transmitter is connected to the signal processing module and is used to receive the digital signal transmitted by the signal processing module and upload the digital signal to the PC host computer through a wireless router;

[0009] A power supply component is connected to the signal processing module and the signal transmitter respectively, and supplies power to the signal processing module and the signal transmitter;

[0010] The setting module is connected to the power supply component and the signal processing module respectively, and is used to set at least two adjustment cycles, detect the power supply status of the signal processing module in any adjustment cycle, and adjust the power supply current of the signal processing module in the next adjustment cycle according to the power supply status of the current adjustment cycle.

[0011] Furthermore, the power supply component includes a wireless energy harvester, a charging circuit and a lithium battery, and the wireless energy harvester is connected to the lithium battery via the charging circuit;

[0012] The lithium battery is connected to the signal processing module and the signal transmitter respectively;

[0013] Wireless energy harvesters are used to receive external energy.

[0014] Furthermore, the signal processing module includes a digital electrophysiological chip and a main control chip, and the digital electrophysiological chip is connected to the electrode connector, the main control chip and the power supply component respectively.

[0015] Furthermore, the signal transmitter is a WiFi module, and the WiFi module is connected to the main control chip and the power supply component respectively.

[0016] Furthermore, the power supply component also includes a low voltage difference linear regulator, and the low voltage difference linear regulator is connected to the lithium battery, the digital power processing chip, the main control chip and the WiFi module.

[0017] Furthermore, the setting module includes a power monitor and a current controller. The power monitor is connected to the current controller and the digital electrophysiology chip respectively. The current controller is connected to the low-voltage difference linear regulator. The power monitor is used to monitor the remaining power of the digital electrophysiology chip; the current controller is used to adjust the power supply current of the digital electrophysiology chip.

[0018] Furthermore, the power monitor is provided with a standard working power Q0 of the digital electrophysiological chip, and compares the remaining power of the digital electrophysiological chip with the standard working power. The current controller adjusts the power supply current of the digital electrophysiological chip according to the comparison result.

[0019] Furthermore, when the current controller adjusts the magnitude of the power supply current delivered to the digital electrophysiological chip,

[0020] When the percentage of the first remaining power Q1 of the digital electrophysiological chip to the standard working power Q0 is ≥90% and <100%, a first adjustment coefficient k1 is set in the current controller for adjusting the magnitude of the power supply current I0 of the digital electrophysiological chip, where k1=1-Q1 / Q0. At this time, the magnitude of the power supply current of the digital electrophysiological chip is adjusted to I, where I=I0×(1+k1);

[0021] When the percentage of the second remaining power Q2 of the digital electrophysiological chip to the standard working power Q0 is ≥60% and <90%, a second adjustment coefficient k2 is further provided in the current controller for adjusting the magnitude of the supply current I0 of the digital electrophysiological chip, where k2=1-Q2 / Q0. At this time, the magnitude of the supply current of the digital electrophysiological chip is adjusted to I, where I=I0×(1+k2);

[0022] When the percentage of the third remaining power Q3 of the digital electrophysiological chip to the standard working power Q0 is ≥20% and <60%, the current controller is further provided with a third adjustment coefficient k3 for adjusting the magnitude of the supply current I0 of the digital electrophysiological chip, where k3=1-Q3 / Q0. At this time, the magnitude of the supply current of the digital electrophysiological chip is adjusted to I, where I=I0×(1+k3);

[0023] When the percentage of the fourth remaining power Q4 of the digital electrophysiological chip to the standard working power Q0 is less than 20%, a fourth adjustment coefficient k4 is also provided in the current controller for adjusting the size of the power supply current I0 of the digital electrophysiological chip, where k4 = 1-Q4 / Q0. At this time, the size of the power supply current of the digital electrophysiological chip is adjusted to I, where I = I0×(1+k4).

[0024] Furthermore, the wireless energy harvester adopts an ultrasound-induced wireless energy harvester UWEH, the digital electrophysiological chip adopts an RHD2132 physiological chip, the main control chip adopts an STM32L4 single-chip microcomputer, and the WiFi module adopts an ESP8266 module.

[0025] Compared with the existing technology, the beneficial effect of the present invention is that the power supply component transmits signals and converts the transmitted signals into electrical energy for storage, so that the wireless power supply acquisition equipment does not need to be powered by wires or built-in power supplies during operation, does not limit the range of activities of experimental animals, and there is no risk of wires being damaged by experimental animals, which reduces the wearing burden of experimental animals. It not only ensures the accuracy of experimental data, but also extends the working time of the wireless power supply acquisition equipment, and can carry out long-term uninterrupted experimental animal EEG signal acquisition experiments.

[0026] In particular, by receiving the transmitted signal through the infinite energy collector and converting the transmitted signal into electrical energy for storage, the wireless power supply acquisition device does not need to be powered by wires or built-in power supplies during operation, does not limit the range of activities of experimental animals, and there is no risk of wires being damaged by experimental animals, which reduces the wearing burden of experimental animals. It not only ensures the accuracy of experimental data, but also extends the working time of the wireless power supply acquisition device, and can carry out long-term uninterrupted experimental animal EEG signal acquisition experiments.

[0027] In particular, the EEG signals of experimental animals are amplified and converted into digital signals through a digital electrophysiological chip, and then processed by DSP digital signal processing by the main control chip, which ensures the efficient conversion and processing of the collected EEG signals of experimental animals, improves the working efficiency of the wireless power supply collection equipment, and thus extends the service life of the wireless power supply collection equipment.

[0028] In particular, the digital signal is transmitted to the PC host computer through the WiFi module via the wireless router, and the control instructions of the PC host computer are received, thereby realizing various parameter settings and experimental operations of the wireless power supply acquisition equipment during the experiment, improving the data acquisition efficiency of the wireless power supply acquisition equipment, saving the energy consumption of the wireless power supply equipment, and extending the battery life of the wireless power supply equipment.

[0029] In particular, the use of a low-dropout linear regulator stabilizes the voltage of the lithium battery's output current, ensuring the normal operation of the digital power processing chip, main control chip, and WiFi module, thereby extending the service life of the wireless power supply device.

[0030] In particular, by setting up components to detect the remaining power of the digital electrophysiology chip, and comparing the remaining power of the digital electrophysiology chip with the preset standard working power, the power supply current of the digital electrophysiology chip is adjusted according to the comparison result, ensuring that the digital electrophysiology chip operates at a power level with higher analog-to-digital conversion efficiency, ensuring the accuracy of the experimental data, improving the working efficiency of the digital electrophysiology chip, reducing the energy consumption of the wireless power supply acquisition equipment, and thus extending the working time of the wireless power supply acquisition equipment.

[0031] In particular, by comparing the remaining power of the digital electrophysiology chip with the standard working power, different adjustment coefficients are set according to different comparison results, and the power supply current of the digital electrophysiology chip is accurately adjusted. This not only ensures that the digital electrophysiology chip operates at a power level with higher analog-to-digital conversion efficiency and the accuracy of the experimental data, but also reduces unnecessary energy consumption, thereby extending the working time of the wireless power supply acquisition equipment.

[0032] In particular, the RHD2132 physiological chip is used as a digital electrophysiological chip. Its advantages are that it has a 32-channel amplifier input port, high integration, small size, and low power consumption, which reduces the power consumption of the wireless power supply acquisition device and thus extends the battery life of the wireless power supply acquisition device.

[0033] In particular, the STM32L4 microcontroller is used as the main control chip for control and wireless transmission. It has a high main frequency, strong computing power, and DSP digital signal processing function. It can not only perform high-throughput data processing and wireless transmission to meet the requirements of experimental data acquisition, but also the STM32L4 microcontroller has low power consumption, which reduces the power consumption of the wireless power collection equipment, thereby extending the battery life of the wireless power collection equipment.

[0034] In particular, the digital signal is transmitted to the PC host computer through the WiFi module via the wireless router, and the control instructions of the PC host computer are received, thereby realizing various parameter settings and experimental operations of the wireless power supply acquisition equipment during the experiment, improving the data acquisition efficiency of the wireless power supply acquisition equipment, saving the energy consumption of the wireless power supply equipment, and extending the battery life of the wireless power supply equipment.

[0035] In particular, the ESP8266 module, as a WiFi module, can not only complete the interaction with the PC host computer, but also complete high-throughput data transmission and reception, saving the energy consumption of the wireless power supply device and extending the battery life of the wireless power supply device.

[0036] In particular, by receiving the transmitted signal through the infinite energy collector and converting the transmitted signal into electrical energy for storage, the wireless power supply acquisition device does not need to be powered by wires or built-in power supplies during operation, does not limit the range of activities of experimental animals, and there is no risk of wires being damaged by experimental animals, which reduces the wearing burden of experimental animals. It not only ensures the accuracy of experimental data, but also extends the working time of the wireless power supply acquisition device, and can carry out long-term uninterrupted experimental animal EEG signal acquisition experiments.

[0037] In particular, the use of a low-dropout linear regulator stabilizes the voltage of the lithium battery's output current, ensuring the normal operation of the digital power processing chip, main control chip, and WiFi module, thereby extending the service life of the wireless power supply device. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 A schematic structural diagram of a wireless power collection device from a first perspective provided by an embodiment of the present invention;

[0039] Figure 2 A schematic structural diagram of a wireless power collection device from a second perspective provided by an embodiment of the present invention;

[0040] Figure 3 This is a specific operation flow chart of the wireless power collection device provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0041] In order to make the objects and advantages of the present invention more clearly understood, the present invention is further described below in conjunction with embodiments; it should be understood that the specific embodiments described herein are merely used to explain the present invention and are not intended to limit the present invention.

[0042] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0043] It should be noted that, in the description of the present invention, terms such as "up", "down", "left", "right", "inside", and "outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings. This is only for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

[0044] Furthermore, it should be noted that, in the description of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0045] See also Figure 1 and Figure 2 As shown, the wireless power collection device provided by the embodiment of the present invention includes:

[0046] The electrode connector 12 is used to receive the EEG signal of the experimental animal transmitted by the external electrode;

[0047] a signal processing module connected to the electrode connector and configured to convert the EEG signal of the experimental animal transmitted by the electrode connector into a digital signal;

[0048] A signal transmitter is connected to the signal processing module and is used to receive the digital signal transmitted by the signal processing module and upload the digital signal to the PC host computer through a wireless router;

[0049] A power supply component is connected to the signal processing module and the signal transmitter respectively, and supplies power to the signal processing module and the signal transmitter;

[0050] The setting module is connected to the power supply component and the signal processing module respectively, and is used to set at least two adjustment cycles, detect the power supply status of the signal processing module in any adjustment cycle, and adjust the power supply current of the signal processing module in the next adjustment cycle according to the power supply status of the current adjustment cycle.

[0051] The electrode connector receives the EEG signals of the experimental animals transmitted by the external electrodes, transmits the EEG signals of the experimental animals to the signal processing module and converts the EEG signals of the experimental animals into digital signals. The signal transmitter receives the digital signals and uploads the digital signals to the PC host computer through the wireless router. When the above components are working, the power supply component receives the external transmission signal, forwards the transmission signal into electrical energy for storage, and supplies power to the signal processing module and the signal transmitter. The setting module detects the power supply status of the signal processing module in any adjustment cycle to adjust the current size in the next adjustment cycle according to the power supply status of the signal processing module in the current cycle.

[0052] Signals are transmitted through the power supply component and converted into electrical energy for storage, so that the wireless power supply acquisition equipment does not need to be powered by wires or built-in power supplies during operation, does not limit the range of activities of experimental animals, and there is no risk of wires being damaged by experimental animals, which reduces the wearing burden of experimental animals. It not only ensures the accuracy of experimental data, but also extends the working time of the wireless power supply acquisition equipment, and can carry out long-term uninterrupted experimental animal EEG signal acquisition experiments.

[0053] Specifically, the power supply component includes a wireless energy harvester 11, a charging circuit and a lithium battery 21, and the wireless energy harvester is connected to the lithium battery via the charging circuit;

[0054] The lithium battery is connected to the signal processing module and the signal transmitter respectively;

[0055] Wireless energy harvesters are used to receive external energy.

[0056] The wireless energy harvester receives the transmitted signal and converts it into electrical energy, which is then transferred to the lithium battery for storage through the charging circuit.

[0057] The transmitted signal is received by the infinite energy collector and converted into electrical energy for storage, so that the wireless power supply acquisition device does not need to be powered by wires or built-in power supplies during operation, does not limit the range of activities of experimental animals, and there is no risk of wires being damaged by experimental animals, which reduces the burden of wearing by experimental animals. It not only ensures the accuracy of experimental data, but also extends the working time of the wireless power supply acquisition device, and can carry out long-term uninterrupted experimental animal EEG signal acquisition experiments.

[0058] Specifically, the signal processing module includes a digital electrophysiological chip 23 and a main control chip 13, and the digital electrophysiological chip is connected to the electrode connector, the main control chip and the power supply component respectively.

[0059] The digital electrophysiological chip receives the EEG signals of experimental animals transmitted by the electrode connector, amplifies and converts the EEG signals of experimental animals into digital signals and sends them to the main control chip, which performs DSP digital signal processing on the digital signals.

[0060] The EEG signals of experimental animals are amplified and converted into digital signals through a digital electrophysiological chip, and then processed by DSP digital signal processing by the main control chip, which ensures the efficient conversion and processing of the collected EEG signals of experimental animals, improves the working efficiency of the wireless power supply collection equipment, and thus extends the service life of the wireless power supply collection equipment.

[0061] Specifically, the signal transmitter includes a WiFi module 24, which is connected to the main control chip and the power supply component respectively.

[0062] The WiFi module receives digital signals processed by the main control chip through the SPI interface, processes the digital signals into data frames, and transmits the data frames to the PC host computer through the wireless router according to the TCP communication protocol. In addition, the WiFi module also receives control instructions from the PC host computer and transmits the control instructions to the main control chip. The main control chip performs various parameter settings and experimental operations on the wireless power collection equipment.

[0063] The digital signal is transmitted to the PC host computer through the WiFi module via the wireless router, and the control instructions of the PC host computer are received, which realizes the various parameter settings and experimental operations of the wireless power supply acquisition equipment during the experiment, improves the data acquisition efficiency of the wireless power supply acquisition equipment, saves the energy consumption of the wireless power supply equipment, and extends the battery life of the wireless power supply equipment.

[0064] Specifically, the power supply component further includes a low voltage difference linear regulator 22, which is connected to the lithium battery, the digital power processing chip, the main control chip and the WiFI module.

[0065] The low voltage drop linear regulator receives the current output by the lithium battery, outputs a stable voltage, and supplies power to the digital power processing chip, main control chip and WiFi module through electricity.

[0066] A low-dropout linear regulator is used to stabilize the voltage of the lithium battery's output current, ensuring the normal operation of the digital power processing chip, main control chip, and WiFi module, thereby extending the service life of the wireless power supply device.

[0067] Specifically, the setting module includes a power monitor and a current controller. The power monitor is connected to the current controller and the digital electrophysiology chip respectively. The current controller is connected to the low-voltage difference linear regulator. The power monitor is used to monitor the remaining power of the digital electrophysiology chip; the current controller is used to adjust the power supply current of the digital electrophysiology chip.

[0068] Specifically, the power monitor is provided with a standard working power Q0 of the digital electrophysiological chip. Under the standard working power, the analog-to-digital conversion efficiency of the digital electrophysiological chip is optimal. The power monitor compares the remaining power of the digital electrophysiological chip with the standard working power, and the current controller adjusts the power supply current of the digital electrophysiological chip according to the comparison result.

[0069] By setting up components to detect the remaining power of the digital electrophysiology chip, and comparing the remaining power of the digital electrophysiology chip with the preset standard working power, the power supply current of the digital electrophysiology chip is adjusted according to the comparison result to ensure that the digital electrophysiology chip operates at a power level with higher analog-to-digital conversion efficiency, ensure the accuracy of the experimental data, improve the working efficiency of the digital electrophysiology chip, reduce the energy consumption of the wireless power supply acquisition equipment, and thus extend the working time of the wireless power supply acquisition equipment.

[0070] Specifically, when the current controller adjusts the power supply current delivered to the digital electrophysiology chip,

[0071] When the percentage of the first remaining power Q1 of the digital electrophysiological chip to the standard working power Q0 is ≥90% and <100%, a first adjustment coefficient k1 is set in the current controller for adjusting the magnitude of the power supply current I0 of the digital electrophysiological chip, where k1=1-Q1 / Q0. At this time, the magnitude of the power supply current of the digital electrophysiological chip is adjusted to I, where I=I0×(1+k1);

[0072] When the percentage of the second remaining power Q2 of the digital electrophysiological chip to the standard working power Q0 is ≥60% and <90%, a second adjustment coefficient k2 is further provided in the current controller for adjusting the magnitude of the supply current I0 of the digital electrophysiological chip, where k2=1-Q2 / Q0. At this time, the magnitude of the supply current of the digital electrophysiological chip is adjusted to I, where I=I0×(1+k2);

[0073] When the percentage of the third remaining power Q3 of the digital electrophysiological chip to the standard working power Q0 is ≥20% and <60%, the current controller is further provided with a third adjustment coefficient k3 for adjusting the magnitude of the supply current I0 of the digital electrophysiological chip, where k3=1-Q3 / Q0. At this time, the magnitude of the supply current of the digital electrophysiological chip is adjusted to I, where I=I0×(1+k3);

[0074] When the percentage of the fourth remaining power Q4 of the digital electrophysiological chip to the standard working power Q0 is less than 20%, a fourth adjustment coefficient k4 is also provided in the current controller for adjusting the size of the power supply current I0 of the digital electrophysiological chip, where k4 = 1-Q4 / Q0. At this time, the size of the power supply current of the digital electrophysiological chip is adjusted to I, where I = I0×(1+k4).

[0075] By comparing the remaining power of the digital electrophysiology chip with the standard working power, different adjustment coefficients are set according to different comparison results, and the power supply current of the digital electrophysiology chip is accurately adjusted. This not only ensures that the digital electrophysiology chip operates at a power level with higher analog-to-digital conversion efficiency and the accuracy of the experimental data, but also reduces unnecessary energy consumption, thereby extending the working time of the wireless power supply acquisition device.

[0076] Specifically, the wireless energy harvester adopts the ultrasound-induced wireless energy harvester UWEH, the digital electrophysiological chip adopts the RHD2132 physiological chip, the main control chip adopts the STM32L4 single-chip microcomputer, and the WiFi module adopts the ESP8266 module.

[0077] The ultrasound-induced wireless energy harvester (UWEH) is made of flexible nanotechnology and is attached to the skull of an experimental animal to receive ultrasonic emission signals. The high-frequency vibration of the ultrasound causes the UWEH to resonate, and the UWEH converts the mechanical energy generated by the resonance into electrical energy.

[0078] An ultrasound-induced wireless energy harvester (UWEH) made of flexible nanotechnology is used as a wireless energy harvester and attached to the skull of the experimental animal. The high-frequency vibration of ultrasound induces resonance in the UWEH, and the mechanical energy generated by the resonance is converted into electrical energy. By utilizing the characteristic that ultrasound has a low power attenuation in biological tissues, the accuracy of the collected EEG signals is ensured, and unnecessary energy loss during transmission is reduced, thereby improving the power supply efficiency of the wireless power collection equipment.

[0079] The RHD2132 physiological chip is used as the digital electrophysiological chip. Its advantages are that it has a 32-channel amplifier input port, high integration, small size, and low power consumption, which reduces the power consumption of the wireless power collection device and thus extends the battery life of the wireless power collection device.

[0080] The STM32L4 single-chip microcomputer is used as the main control chip for control and wireless transmission. It has a high main frequency, strong computing power, and DSP digital signal processing function. It can not only perform high-throughput data processing and wireless transmission to meet the requirements of experimental data acquisition, but also the STM32L4 single-chip microcomputer has low power consumption, which reduces the power consumption of the wireless power collection equipment, thereby extending the battery life of the wireless power collection equipment.

[0081] As a WiFi module, the ESP8266 module can not only complete the interaction with the PC host computer, but also complete high-throughput data transmission and reception, saving the energy consumption of the wireless power supply device and extending the battery life of the wireless power supply device.

[0082] The electrode connector, signal processing module, signal transmitter, power supply component and all peripheral circuits are integrated on a four-layer circuit board 14. The connection method of the electrode connector, signal processing module, signal transmitter, power supply component and all peripheral circuits on the four-layer circuit board can be adjusted according to actual needs.

[0083] See also Figure 3 As shown, the specific operation process of the wireless power collection device provided by the embodiment of the present invention includes:

[0084] During actual use, the ultrasonic transmitting module 301 transmits ultrasonic waves to the wireless energy collector 302. The ultrasonic waves cause the wireless energy collector to resonate through high-frequency vibration, converting mechanical energy into electrical energy, and storing it in the lithium battery 304 through the charging circuit 303. The lithium battery electrical energy passes through the low-voltage difference linear regulator 305 to output a stable 3.3V voltage to power the main control chip 306, the digital electrophysiology chip 307 and the Wi-Fi component 309.

[0085] During use, the electrode connector 308 needs to be connected to the external electrode. The animal's EEG signal will be transmitted to the digital electrophysiology chip through the electrode connector. After amplification and analog-to-digital conversion by the digital electrophysiology chip, the digital signal is sent to the main control chip through the SPI interface for digital signal processing. It is then transmitted to the Wi-Fi component through the SPI interface. The processed data frame is transmitted to the PC host computer 311 through the wireless router 310 according to the TCP communication protocol. The PC host computer sends control instructions to the Wi-Fi component through the wireless router, setting various parameters and performing experimental operations on the wireless power collection device.

[0086] Thus far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the scope of protection of the present invention is obviously not limited to these specific embodiments. Without departing from the principles of the present invention, those skilled in the art may make equivalent changes or substitutions to the relevant technical features, and the technical solutions after such changes or substitutions will fall within the scope of protection of the present invention.

[0087] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be within the scope of protection of the present invention.

Claims

1. A wireless power supply collection device, characterized in that: include: An electrode connector, used to receive EEG signals of experimental animals transmitted by external electrodes; a signal processing module connected to the electrode connector and configured to convert the EEG signal of the experimental animal transmitted by the electrode connector into a digital signal; A signal transmitter is connected to the signal processing module and is used to receive the digital signal transmitted by the signal processing module and upload the digital signal to the PC host computer through a wireless router; A power supply component is connected to the signal processing module and the signal transmitter respectively, and supplies power to the signal processing module and the signal transmitter; a setting module, connected to the power supply component and the signal processing module respectively, for setting at least two adjustment cycles, detecting the power supply status of the signal processing module in any adjustment cycle, and adjusting the power supply current of the signal processing module in the next adjustment cycle according to the power supply status of the current adjustment cycle; The signal processing module includes a digital electrophysiological chip and a main control chip, and the digital electrophysiological chip is connected to the electrode connector, the main control chip and the power supply component respectively; The setting module includes a power monitor and a current controller. The power monitor is connected to the current controller and the digital electrophysiological chip respectively. The current controller is connected to the low-dropout linear regulator. The power monitor is used to monitor the remaining power of the digital electrophysiological chip; the current controller is used to adjust the power supply current of the digital electrophysiological chip. The power monitor is provided with a standard working power Q0 of the digital electrophysiological chip, and compares the remaining power Q1 of the digital electrophysiological chip with the standard working power Q0. The current controller adjusts the magnitude of the power supply current I0 of the digital electrophysiological chip according to the comparison result. A first adjustment coefficient k1 is provided in the current controller, where k1=1-Q1 / Q0, and the magnitude of the power supply current of the digital electrophysiological chip is adjusted to I, where I=I0×(1+k1).

2. The wireless power supply collection device according to claim 1, characterized in that: The power supply assembly includes a wireless energy harvester, a charging circuit and a lithium battery, and the wireless energy harvester is connected to the lithium battery via the charging circuit; The lithium battery is connected to the signal processing module and the signal transmitter respectively; Wireless energy harvesters are used to receive external energy.

3. The wireless power supply collection device according to claim 2, characterized in that: The signal transmitter is a WiFi module, and the WiFi module is connected to the main control chip and the power supply component respectively.

4. The wireless power supply collection device according to claim 3, characterized in that: The power supply component also includes a low voltage difference linear regulator, which is connected to the lithium battery, the digital power processing chip, the main control chip and the WiFi module.

5. The wireless power supply collection device according to claim 4, characterized in that: The wireless energy harvester adopts an ultrasound-induced wireless energy harvester UWEH, the digital electrophysiological chip adopts an RHD2132 physiological chip, the main control chip adopts an STM32L4 single-chip microcomputer, and the WiFi module adopts an ESP8266 module.

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