Signal receiving system, method, device and storage medium

Abstract

The present invention discloses a signal receiving system, method, device and storage medium, belonging to the field of information processing technology. The system comprises a superconducting quantum interference device, which is used to generate a first electrical signal when an electromagnetic signal is detected; a signal processing circuit, wherein the signal processing circuit comprises a target circuit unit having a target gain-bandwidth product; the signal processing circuit is used to amplify the first electrical signal into a second electrical signal based on the target circuit unit; the signal processing slew rate of the signal processing circuit is adapted to the target gain-bandwidth product; a signal analysis module, which is used to perform signal analysis on the second electrical signal, and determine a Schumann resonance signal based on the signal analysis result. The beneficial effect is that the Schumann resonance signal can be stably detected, the signal-to-noise ratio of the test result is improved, and the detection is simple.

Description

Technical Field

[0001] The present invention relates to the field of information processing technology, and in particular to a signal receiving system, method, device and storage medium. Background Art

[0002] Schumann resonance is a standing electromagnetic wave phenomenon formed in the cavity of the earth's ionosphere, with a frequency between 8 Hz and tens of Hz (extremely low frequency signal). Schumann resonance can provide useful information about global thunderstorm activities and low ionosphere parameters, and is called "the brain wave of the earth". Recently, some studies have also found that changes in global atmospheric temperature may also have some inherent correlation with Schumann resonance. In addition, Schumann resonance also has a wide range of applications in earthquake prediction and other aspects. Therefore, detecting Schumann resonance signals is of great significance.

[0003] At present, there are only a few Schumann resonance receiving systems in my country. They mainly use the nonlinear effect of magnetic bars or high-frequency electromagnetic waves and Schumann resonance to receive modulated high-frequency waves and thus obtain Schumann resonance. The theoretical calculations are very complicated and difficult to implement. The observation equipment uses orthogonal dipole antennas to receive my country's BPM shortwave timing signals to extract Schumann resonance. The engineering calculations are huge and the demodulation data processing method is complicated. This method is seriously interfered by human noise, and the system detection is unstable, so it is impossible to obtain good observation results. Summary of the invention

[0004] In order to overcome the shortcomings and deficiencies of the prior art, the present invention discloses a signal receiving system, method, device and storage medium, which can stably detect the Schumann resonance signal, improve the signal-to-noise ratio of the test results, and simplify the detection. The system includes:

[0005] A superconducting quantum interference device, for generating a first electrical signal when an electromagnetic signal is detected;

[0006] A signal processing circuit, the signal processing circuit comprising a target circuit unit having a target gain-bandwidth product; the signal processing circuit is used to amplify the first electrical signal into a second electrical signal based on the target circuit unit; the signal processing slew rate of the signal processing circuit is adapted to the target gain-bandwidth product;

[0007] The signal analysis module is used to perform signal analysis on the second electrical signal and determine the Schumann resonance signal based on the signal analysis result.

[0008] Furthermore, the system also includes a thermostat, the superconducting quantum interference device is placed in the thermostat, and the thermostat is covered with a preset number of layers of insulating film, and the preset number of layers of the insulating film makes the bandwidth value of the superconducting quantum interference device adapt to the frequency of the Schumann resonance signal.

[0009] Furthermore, the signal processing circuit also includes a capacitor; the capacitance value of the capacitor is determined based on the bandwidth value of the superconducting quantum interference device.

[0010] Furthermore, the superconducting quantum interference devices are provided in three pieces, which are respectively provided on three surfaces of the support, and the three surfaces are perpendicular to each other.

[0011] The present application also provides a signal receiving method, which is implemented based on the signal receiving system as described above, and includes:

[0012] Receiving a first electrical signal output by the superconducting quantum interference device;

[0013] Based on the target circuit unit having the target gain-bandwidth product, the first electrical signal is amplified into the second electrical signal; the signal processing slew rate of the signal processing circuit is adapted to the target gain-bandwidth product;

[0014] The second electrical signal is sent to the signal analysis module, so that the signal analysis module performs signal analysis on the second electrical signal, and determines the Schumann resonance signal based on the signal analysis result.

[0015] Furthermore, the step of amplifying the first electrical signal by a preset gain to generate the second electrical signal comprises:

[0016] Obtaining a current bandwidth value of the superconducting quantum interference device;

[0017] The capacitance value of the capacitor is determined based on the current bandwidth value so that the signal processing circuit is in a critical damping state.

[0018] Furthermore, the signal analysis result includes a plurality of preset electromagnetic signals having different frequencies;

[0019] The sending the second electrical signal to the signal analysis module, so that the signal analysis module performs signal analysis on the second electrical signal, and determines the Schumann resonance signal based on the signal analysis result, comprises:

[0020] The second electrical signal is sent to the signal analysis module, so that the signal analysis module extracts the Schumann resonance signal from the plurality of preset electromagnetic signals with different frequencies based on the frequency of the Schumann resonance signal.

[0021] Furthermore, the method further comprises:

[0022] The preset number of layers of the insulating film is determined based on the bandwidth value of the superconducting quantum interference device; the preset number of layers of the insulating film makes the bandwidth value of the superconducting quantum interference device adapt to the frequency of the Schumann resonance signal.

[0023] In a third aspect, the present application also provides an electronic device, comprising a processor and a memory, wherein the memory stores at least one instruction, at least one program, a code set or an instruction set, and the at least one instruction, the at least one program, the code set or the instruction set are loaded and executed by the processor to implement a signal receiving method as described above.

[0024] In a fourth aspect, the present application also provides a computer-readable storage medium, characterized in that the storage medium stores at least one instruction, at least one program, code set or instruction set, and the at least one instruction, at least one program, code set or instruction set is loaded by a processor and executed by a signal receiving method as described above.

[0025] The implementation of the present invention has the following beneficial effects:

[0026] The receiving system of the present application includes a superconducting quantum interference device, a signal processing circuit and a signal analysis module, and has a simple structure. The superconducting quantum interference device has the characteristics of high sensitivity. The electromagnetic signal of the target signal is collected by the superconducting quantum interference device, which can improve the signal-to-noise ratio of the signal test result. In addition, the signal processing circuit has a target circuit unit with a target gain-bandwidth product. The increase of the target gain-bandwidth product increases the signal processing slew rate of the signal processing circuit, thereby improving the stability of the system in receiving the Schumann resonance signal. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solution of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0028] Figure 1 A schematic diagram of the structure of a signal receiving system provided for the implementation of the present invention;

[0029] Figure 2 A flow chart of a signal receiving system method provided for the implementation of the present invention;

[0030] Figure 3 The test results of the Schumann resonance signal provided for the implementation of the present invention;

[0031] Figure 4 The test results of the very low frequency signal provided for the implementation of the present invention. DETAILED DESCRIPTION

[0032] In order to enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments are only part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of this application.

[0033] In this embodiment, the technical problem to be solved by the present invention is that the Schumann resonance signal can be stably detected, the signal-to-noise ratio of the test result can be improved, and the detection is simple. The system includes: a superconducting quantum interference device, which is used to generate a first electrical signal when an electromagnetic signal is detected; the superconducting quantum interference device has extremely high sensitivity, and can be selected from a low-temperature superconducting quantum interference device and a high-temperature superconducting quantum interference device according to the required operating temperature of the superconducting quantum interference device, wherein the sensitivity of the low-temperature superconducting quantum interference device can be better than 1fT / Hz 1 / 2 The sensitivity of high-temperature superconducting quantum interference devices has reached 10fT / Hz 1 / 2 , capable of detecting weak signals in the Earth's magnetic field.

[0034] The signal processing circuit is electrically connected to the superconducting quantum interference device, and provides a bias voltage and a feedback current for the superconducting quantum interference device, so that the superconducting quantum interference device can send a first electrical signal to the signal processing module based on the collected electromagnetic signal. The signal processing circuit includes a target circuit unit with a target gain-bandwidth product; the target circuit processing unit includes a built-in chip of the signal processing circuit, and the signal processing circuit is used to amplify the first electrical signal into a second electrical signal based on the target circuit unit. In general, the electromagnetic signal is converted into a voltage signal, and the Schumann resonance signal is determined by collecting the voltage signal. Since the signal to be collected is weak, the first electrical signal after conversion is also weak. Therefore, in order to accurately detect the target signal, the measured first electrical signal needs to be amplified; the signal processing slew rate of the signal processing circuit is adapted to the target gain-bandwidth product; the relationship between the target gain-bandwidth product and the signal processing slew rate is shown in the following formula:

[0035]

[0036] in, is the signal processing slew rate, δV is the signal amplitude of the superconducting quantum interference device, GBP is the target gain bandwidth product, M f is the mutual inductance of the superconducting quantum interference device, R f It is the feedback resistor of the signal processing circuit.

[0037] It can be seen from the above formula that as the target gain-bandwidth product increases, the signal processing slew rate also increases accordingly. Through this implementation, the slew rate of the signal processing circuit reaches 1mT / S, which enables the signal receiving system to work stably under high-frequency interference from the earth's magnetic field.

[0038] The signal analysis module is used to perform signal analysis on the second electrical signal and determine the Schumann resonance signal based on the signal analysis result; the electromagnetic signal of the target signal is collected by the superconducting quantum interference device, so as to improve the signal-to-noise ratio of the signal test result; in addition, the signal processing circuit has a target circuit unit with a target gain-bandwidth product, which can improve the signal processing slew rate of the signal processing circuit, thereby improving the stability of the system in receiving the Schumann resonance signal.

[0039] In one embodiment, the system further comprises a thermostat, and the superconducting quantum interference device is placed at the bottom of the thermostat. Preferably, the thermostat is a non-magnetic dewar. If the superconducting quantum interference device uses a low-temperature superconducting quantum interference device, the coolant in the non-magnetic dewar is liquid nitrogen. If the superconducting quantum interference device uses a high-temperature superconducting quantum interference device, the coolant in the non-magnetic dewar is liquid helium. The non-magnetic dewar is coated with a preset number of layers of insulating film, and the insulating film is specifically a super insulating film. The super insulating film performs radio frequency shielding on the system, and ensures a large bandwidth on the basis of ensuring good shielding. The preset number of layers of super insulating film can meet the bandwidth of the superconducting quantum interference device. The width value decays in a third-order exponential manner, and the bandwidth value of the superconducting quantum interference device after decay is adapted to the frequency of the Schumann resonance signal, and adaptation means that the frequency of the Schumann resonance signal is within the frequency range that the superconducting quantum interference device can detect; as a preferred implementation, the preset number of layers is 40 layers. When 40 layers of super insulating film are used (each layer is about 50nm), the bandwidth of the superconducting quantum interference device is about 100kHz, so that the system can work normally and stably in a complex geomagnetic environment, and the superconducting quantum interference device can receive lower frequency or higher frequency signals, thereby improving the diversity of the types of received signals of the system.

[0040] In one embodiment, the signal processing circuit also includes a capacitor; the capacitance value of the capacitor is determined based on the bandwidth value of the superconducting quantum interference device. When the signal processing circuit affects the stability of the system under underdamping, it is easy to cause oscillation. When the system is overdamped, it will limit the bandwidth of the system, thereby reducing the system slew rate. Therefore, before determining the capacitance value, it is necessary to determine the current bandwidth value of the system, determine the capacitance value based on the current bandwidth value, and select the corresponding capacitance device according to the capacitance value, so that the circuit reaches the critical damping state, thereby further improving the stability of the system.

[0041] In one embodiment, three superconducting quantum interference devices are provided, which are respectively provided on three surfaces of the support, and the three surfaces are perpendicular to each other. The three quantum interference devices form a three-axis magnetometer, which is electrically connected to the signal processing circuit. Electromagnetic signals in the east-west direction, the north-south direction and the vertical direction are collected through multiple channels to improve the accuracy of data collection. The superconducting quantum interference device is a micro-nano processing device with a small size, which can easily realize three-axis integration and ensure the orthogonality between the three axes.

[0042] The specific implementation process of the present application is as follows: placing the coolant and the three-axis magnetometer at the bottom of the thermostat, the coolant is used to ensure the constant temperature of the thermostat, the three channels of the three-axis magnetometer are electrically connected to the signal processing circuit respectively, the signal processing circuit is electrically connected to the signal analysis module, since the superconducting quantum interference device is a vector sensor, in order to reduce the impact of system vibration on the test results, it is necessary to take shock-absorbing measures for the system. In the specific implementation, the system is buried or semi-buried in the ground to reduce the impact of ground vibration and wind noise and improve the accuracy of the test. The signal processing circuit provides bias voltage and feedback current for the three-axis magnetometer, the three-axis magnetometer converts the collected electromagnetic signal into a first electrical signal, and reads it through the signal processing circuit, the first electrical signal is amplified into a second electrical signal by the signal processing circuit, the second electrical signal is analyzed by the signal analysis module, and the Schumann resonance signal is determined in the signal analysis result.

[0043] The present application also provides a signal receiving method, which is implemented based on the above-mentioned signal receiving system. Figure 2 , the method comprising:

[0044] S110: receiving a first electrical signal output by a superconducting quantum interference device;

[0045] The execution subject is a signal processing circuit, which converts the collected electromagnetic signal into a first electrical signal through a superconducting quantum interference device. Generally, the first electrical signal is a voltage signal, and the signal processing circuit receives the first electrical signal output by the superconducting quantum interference device.

[0046] S120: based on a target circuit unit having a target gain-bandwidth product, amplifying the first electrical signal into a second electrical signal; the signal processing slew rate of the signal processing circuit is adapted to the target gain-bandwidth product;

[0047] A target circuit unit having a target gain-bandwidth product is set in the signal output circuit. The signal processing slew rate of the signal processing circuit is adapted to the target gain-bandwidth product, which means that the target gain-bandwidth product is positively correlated with the signal processing slew rate. The larger the target gain-bandwidth product of the target circuit unit is, the larger the corresponding signal processing slew rate is, thereby improving the stability of the system test; the target gain-bandwidth product is also correlated with the target gain. Based on the target circuit unit having the target gain-bandwidth product, the first electrical signal is amplified by the target gain to obtain a second electrical signal.

[0048] S130: sending the second electrical signal to a signal analysis module, so that the signal analysis module performs signal analysis on the second electrical signal and determines a Schumann resonance signal based on the signal analysis result;

[0049] The signal processing circuit sends the second electrical signal to the signal analysis module, and the signal analysis module performs signal analysis on the second electrical signal and determines the Schumann resonance signal in the signal analysis result.

[0050] Furthermore, before step S120, the method further includes:

[0051] S210: Obtaining a current bandwidth value of a superconducting quantum interference device;

[0052] During the operation of the system, the bandwidth will attenuate to a certain extent, so the current bandwidth value of the superconducting quantum interference device needs to be remeasured.

[0053] S220 determines a capacitance value of the capacitor based on the current bandwidth value, so that the signal processing circuit is in a critical damping state.

[0054] The capacitance value of the capacitor is determined based on the bandwidth value of the superconducting quantum interference device. When the signal processing circuit affects the stability of the system under underdamping, it is easy to cause oscillation. When the system is overdamped, it will limit the bandwidth of the system, thereby reducing the system slew rate. Therefore, before determining the capacitance value, it is necessary to determine the current bandwidth value of the system. Based on the current bandwidth value, the capacitance value is determined so that the circuit reaches the critical damping state, further improving the stability of the system.

[0055] Preferably, the signal analysis result includes a plurality of preset electromagnetic signals with different frequencies; while the superconducting quantum interference device collects the Schumann resonance signal, it also detects electromagnetic information of other signals, and the superconducting quantum interference device converts the electromagnetic information of all detectable signals into a first electrical signal and outputs it to the signal processing module.

[0056] Sending the second electrical signal to a signal analysis module; so that the signal analysis module performs signal analysis on the second electrical signal, and determining a Schumann resonance signal based on the signal analysis result, including:

[0057] S131: sending the second electrical signal to a signal analysis module, so that the signal analysis module extracts a Schumann resonance signal from a plurality of preset electromagnetic signals with different frequencies based on the frequency of the Schumann resonance signal;

[0058] After the signal processing module converts the first electrical signal into a second electrical signal, the second electrical signal is sent to the signal analysis module for signal analysis, and the second electrical signal is subjected to a fast Fourier transform to obtain a spectrum of the Schumann resonance signal. Finally, the spectrum of the obtained Schumann resonance signal is displayed on the display module. The signal analysis result is the spectrum of the Schumann resonance signal. The signal analysis result includes a plurality of preset electromagnetic signals of different frequencies. The test results are as follows: Figure 3 As shown, based on the frequency of the Schumann resonance signal, the frequency of the Schumann resonance signal is generally between 8 and tens of Hz. Among a variety of preset electromagnetic signals with different frequencies, the signal analysis module determines the Schumann resonance signal according to the frequency of the Schumann resonance. The algorithm is simple and has a good observation effect.

[0059] Furthermore, the method further comprises:

[0060] S310: determining a preset number of layers of the insulating film based on the bandwidth value of the superconducting quantum interference device; the preset number of layers of the insulating film makes the bandwidth value of the superconducting quantum interference device compatible with the frequency of the Schumann resonance signal;

[0061] The thermostat is coated with a preset number of insulating films to ensure a larger bandwidth on the basis of ensuring good shielding. The preset number of super insulating films can satisfy the bandwidth value of the superconducting quantum interference device to decay exponentially in the third order, and the bandwidth value of the superconducting quantum interference device after decay is adapted to the frequency of the Schumann resonance signal. Adaptation means that the frequency of the Schumann resonance signal is within the frequency range that the superconducting quantum interference device can detect. This allows the system to be sufficiently wide in a complex geomagnetic environment, so that the system can detect very low frequency (3-30KHz) signals in addition to extremely low frequency signals such as the Schumann resonance signal, thereby improving the diversity of the types of signals received by the signal receiving system. The test results of the very low frequency signal are as follows: Figure 4 shown.

[0062] Implementing this embodiment has the following effects:

[0063] 1. The receiving system of the present application is composed of a superconducting interference device, a signal processing circuit and a signal analysis module, and has a simple structure. The superconducting quantum interference device has the characteristics of high sensitivity and small size. The electromagnetic signal of the target signal is collected by the superconducting quantum interference device, which can improve the signal-to-noise ratio of the signal test result. In addition, the signal processing circuit has a target circuit unit with a target gain-bandwidth product, which can improve the signal processing slew rate of the signal processing circuit, thereby improving the stability of the system in receiving the Schumann resonance signal.

[0064] 2. Place the superconducting quantum interference device in a non-magnetic dewar and cover the non-magnetic dewar with a preset number of layers of insulating film. The insulating film provides radio frequency shielding for the system, ensuring a larger bandwidth while ensuring good shielding. The increased bandwidth enables the system to detect higher-frequency signals and improves the diversity of the types of signals received by the system.

[0065] 3. By adjusting the capacitance value, the signal processing circuit reaches the critical damping state, further improving the stability of the system detection signal.

[0066] 4. Three superconducting quantum interference devices are set to form a three-axis magnetometer. The three superconducting quantum interference devices collect electromagnetic signals in the east-west direction, the north-south direction, and the vertical direction respectively. The three superconducting quantum interference devices are electrically connected to the signal processing module respectively to form multiple signal collection channels, thereby improving the accuracy of system data collection.

[0067] An embodiment of the present invention also provides an electronic device, which includes a processor and a memory, wherein the memory stores at least one instruction, at least one program, a code set or an instruction set, and the at least one instruction, at least one program, a code set or an instruction set is loaded and executed by the processor to implement a signal receiving method as in the method embodiment.

[0068] An embodiment of the present invention also provides a storage medium, which can be set in a server to store at least one instruction, at least one program, a code set or an instruction set for implementing the signal receiving method in the method embodiment. The at least one instruction, the at least one program, the code set or the instruction set is loaded and executed by the processor to implement the signal receiving method provided by the above-mentioned method embodiment.

[0069] Optionally, in this embodiment, the storage medium may be located in at least one of the multiple network servers of the computer network. Optionally, in this embodiment, the storage medium may include, but is not limited to, various media that can store program codes, such as a USB flash drive, a read-only memory (ROM), a random access memory (RAM), a mobile hard disk, a magnetic disk, or an optical disk.

[0070] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product, or server that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products, or devices.

[0071] The above description has fully disclosed the specific embodiments of the present invention. It should be pointed out that any changes made by those skilled in the art to the specific embodiments of the present invention do not deviate from the scope of the claims of the present invention. Accordingly, the scope of the claims of the present invention is not limited to the above specific embodiments.

Claims

1. A signal receiving system, characterized in that: include: A superconducting quantum interference device, for generating a first electrical signal when an electromagnetic signal is detected; A signal processing circuit, the signal processing circuit comprising a target circuit unit having a target gain-bandwidth product; the signal processing circuit is used to amplify the first electrical signal into a second electrical signal based on the target circuit unit; the signal processing slew rate of the signal processing circuit is adapted to the target gain-bandwidth product; a signal analysis module, configured to perform signal analysis on the second electrical signal, and determine a Schumann resonance signal based on a signal analysis result, wherein the signal analysis result includes a plurality of preset electromagnetic signals with different frequencies; The performing signal analysis on the second electrical signal and determining the Schumann resonance signal based on the signal analysis result comprises: Based on the frequency of the Schumann resonance signal, extracting the Schumann resonance signal from a plurality of the preset electromagnetic signals with different frequencies; Before amplifying the first electrical signal into a second electrical signal based on the target circuit unit, the system is further configured to: Obtaining a current bandwidth value of the superconducting quantum interference device; The capacitance value of the capacitor is determined based on the current bandwidth value so that the signal processing circuit is in a critical damping state.

2. The system according to claim 1, characterized in that The system also includes a thermostat, in which the superconducting quantum interference device is placed. The thermostat is covered with a preset number of layers of insulating film, and the preset number of layers of the insulating film enables the bandwidth value of the superconducting quantum interference device to adapt to the frequency of the Schumann resonance signal.

3. The system according to claim 1 or 2, characterized in that: The signal processing circuit further includes a capacitor; a capacitance value of the capacitor is determined based on a bandwidth value of the superconducting quantum interference device.

4. The system according to claim 1, characterized in that The superconducting quantum interference devices are provided in three pieces, which are respectively arranged on three surfaces of the support, and the three surfaces are perpendicular to each other.

5. A signal receiving method, characterized in that: The method is implemented based on a signal receiving system according to any one of claims 1 to 4, and includes: Receiving a first electrical signal output by the superconducting quantum interference device; Based on the target circuit unit having the target gain-bandwidth product, the first electrical signal is amplified into the second electrical signal; the signal processing slew rate of the signal processing circuit is adapted to the target gain-bandwidth product; Sending the second electrical signal to the signal analysis module; so that the signal analysis module performs signal analysis on the second electrical signal, and determines the Schumann resonance signal based on the signal analysis result; The signal analysis result includes a plurality of preset electromagnetic signals with different frequencies; the second electrical signal is sent to the signal analysis module; so that the signal analysis module performs signal analysis on the second electrical signal, and determines the Schumann resonance signal based on the signal analysis result, including: Sending the second electrical signal to the signal analysis module; so that the signal analysis module extracts the Schumann resonance signal from the plurality of preset electromagnetic signals with different frequencies based on the frequency of the Schumann resonance signal; The step of amplifying the first electrical signal into the second electrical signal based on the target circuit unit having the target gain-bandwidth product comprises: Obtaining a current bandwidth value of the superconducting quantum interference device; A capacitance value of a capacitor is determined based on the current bandwidth value so as to place the signal processing circuit in a critical damping state.

6. A signal receiving method according to claim 5, characterized in that: The method further comprises: The preset number of layers of the insulating film is determined based on the bandwidth value of the superconducting quantum interference device; the preset number of layers of the insulating film makes the bandwidth value of the superconducting quantum interference device adapt to the frequency of the Schumann resonance signal.

7. An electronic device, characterized in that: The device includes a processor and a memory, wherein the memory stores at least one instruction, at least one program, a code set or an instruction set, and the at least one instruction, the at least one program, the code set or the instruction set is loaded and executed by the processor to implement a signal receiving method as described in any one of claims 5 to 6.

8. A computer-readable storage medium, characterized in that: The storage medium stores at least one instruction, at least one program, code set or instruction set, and the at least one instruction, at least one program, code set or instruction set is loaded and executed by the processor according to a signal receiving method as described in any one of claims 5 to 6.

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