Wireless radio frequency circuit and signal synchronization method

Abstract

The invention relates to a wireless radio frequency circuit and a signal synchronization method. The wireless radio frequency circuit comprises a radio frequency signal receiving and transmitting module, and a preprocessing module, an intermediate processing module and a post-processing module which are connected in sequence, wherein the radio frequency signal transceiving module is used for receiving electromagnetic waves when being connected with the preprocessing module and converting the electromagnetic waves into current signals; outputting the current signal to a preprocessing module; the preprocessing module is used for carrying out filtering processing and low-noise amplification on the current signal to obtain a preprocessed signal; the intermediate processing module is used for demodulating and decoding the preprocessed signal to obtain an intermediate processing signal; the post-processing module is used for carrying out filtering processing and power amplification on the intermediate processing signal to obtain a post-processing signal; and the radio frequency signal receiving and transmitting module is also used for receiving the post-processing signal when being connected with the post-processing module, converting the post-processing signal into the processed electromagnetic wave and transmitting the processed electromagnetic wave. The circuit can improve the signal synchronization precision.

Description

Technical Field

[0001] The present application relates to the technical field of power systems, and in particular to a wireless radio frequency circuit and a signal synchronization method. Background Art

[0002] In the field of power monitoring, for safety reasons, many systems need to use wireless communication and control multiple devices for synchronous sampling to improve the accuracy of phase measurement. Traditional wireless transparent transmission modules achieve synchronization by sending synchronization instructions through serial ports, but this method has uncertainty in time delay and low synchronization accuracy. Therefore, signal synchronization technology based on wireless RF circuits has emerged as an effective means to solve this problem. In wireless communication systems, wireless RF circuits are the key part of signal transmission, and their performance directly affects the accuracy and stability of signal synchronization.

[0003] Traditional wireless communication technologies include GPS-based wireless signal synchronization technology and single frequency network synchronization technology based on modulated wave synchronization technology. GPS-based wireless signal synchronization technology achieves time synchronization between nodes by receiving GPS satellite signals. It is mainly used in wireless communication networks, radio and television, navigation systems and other fields. It has the following disadvantages: (1) Dependence on external systems: This technology is highly dependent on the GPS satellite system. Once the GPS signal is interfered with or cannot be received (such as in indoor environments, tunnels, high-rise building dense areas, etc.), the synchronization accuracy will be greatly reduced or even unable to work; (2) High cost: The cost of GPS receiving equipment is relatively high, which increases the overall investment cost of the system; (3) Security issues: GPS signals are vulnerable to spoofing attacks, which may cause the synchronization system to be misled and affect communication. Single frequency network synchronization technology based on modulated wave synchronization technology achieves frequency and time synchronization between each transmitting substation through mixing, filtering and delay compensation. Among them, digital RF delay compensation technology achieves signal delay compensation and time synchronization by down-converting the modulated wave signal to the intermediate frequency, and then through steps such as analog-to-digital conversion, storage delay and digital-to-analog conversion; optical wave delay compensation technology uses the delay characteristics of optical wave transmission to achieve high-precision delay compensation and time synchronization. Single frequency network synchronization technology based on modulated wave synchronization technology is mainly used for the synchronization of radio and television single frequency networks to ensure the consistency of signal spectrum characteristics and time synchronization between each transmitting substation. It has the following disadvantages: (1) High system complexity: This solution requires additional hardware equipment (such as delay compensators) and complex signal processing algorithms, which increases the complexity and cost of the system; (2) Difficulty in maintenance: Aging and failure of hardware equipment may lead to a decrease in synchronization performance, requiring regular maintenance and calibration; (3) Lack of flexibility: Once the system is deployed, it is relatively difficult to adjust synchronization parameters and expand the system scale.

[0004] Therefore, the traditional wireless RF signal synchronization method is limited by factors such as signal attenuation, multipath effect, frequency offset and circuit noise, which leads to a decrease in signal synchronization accuracy and affects the overall performance of the system. Therefore, there is an urgent need for a wireless RF circuit that can improve signal synchronization accuracy. Summary of the invention

[0005] Based on this, it is necessary to provide a wireless RF circuit that can improve signal synchronization accuracy in response to the above technical problems.

[0006] In a first aspect, the present application provides a wireless radio frequency circuit, comprising: a radio frequency signal transceiver module, and a pre-processing module, an intermediate processing module and a post-processing module connected in sequence; wherein:

[0007] The radio frequency signal transceiver module is used to receive electromagnetic waves when connected to the preprocessing module, and convert the electromagnetic waves into current signals; and output the current signals to the preprocessing module;

[0008] A preprocessing module is used to filter and low-noise amplify the current signal to obtain a preprocessing signal;

[0009] An intermediate processing module, used for demodulating and decoding the pre-processed signal to obtain an intermediate processed signal;

[0010] A post-processing module is used to filter and amplify the intermediate processing signal to obtain a post-processing signal;

[0011] The radio frequency signal transceiver module is also used to receive the post-processing signal when connected to the post-processing module, convert the post-processing signal into a processed electromagnetic wave, and send the processed electromagnetic wave.

[0012] In one embodiment, the RF signal transceiver module includes a RF switch; the RF switch is a single-pole double-throw switch, and when the fixed end of the RF switch is connected to the first movable end of the RF switch, the RF signal transceiver module is connected to the pre-processing module; when the fixed end of the RF switch is connected to the second movable end of the RF switch, the RF signal transceiver module is connected to the post-processing module.

[0013] In one of the embodiments, the radio frequency signal transceiver module includes an antenna. The radio frequency signal transceiver module is also used to receive electromagnetic waves through the antenna and convert the electromagnetic waves into current signals when connected to the preprocessing module.

[0014] In one embodiment, the preprocessing module includes a first filter, a first low noise amplifier, a second filter, a second low noise amplifier, a first mixing module, a third filter and an analog-to-digital converter connected in sequence; the first filter is connected to the radio frequency signal transceiver module, and the analog-to-digital converter is connected to the intermediate processing module; the current signal is processed by the first filter, the first low noise amplifier, the second filter, the second low noise amplifier, the first mixing module, the third filter and the analog-to-digital converter in sequence to obtain a preprocessed signal.

[0015] In one embodiment, the first mixing module includes a first mixer, a high-frequency oscillator and a crystal oscillator; the first mixer is connected to the second low-noise amplifier and the third filter respectively, and the first mixer is connected to the crystal oscillator through the high-frequency oscillator, and the first mixer is used to mix the frequency signal input through the high-frequency oscillator and the current signal input through the second low-noise amplifier.

[0016] In one embodiment, the intermediate processing module includes: a processor; the processor includes a demodulation circuit and a decoding circuit; the demodulation circuit is used to demodulate the pre-processed signal to obtain a demodulated signal; the decoding circuit is used to decode the demodulated signal to obtain an intermediate processing signal.

[0017] In one of the embodiments, the intermediate processing module also includes: a signal synchronization interface, which is used to output a rising edge when a pre-processed signal is received; the intermediate processing module is also used to demodulate and decode the pre-processed signal to obtain an intermediate processing signal when a rising edge is detected output by the signal synchronization interface.

[0018] In one embodiment, the post-processing module includes a digital-to-analog converter, a fourth filter, a second mixing module, a first power amplifier, a fifth filter, a second power amplifier and a sixth filter connected in sequence; the digital-to-analog converter is connected to the intermediate processing module; the sixth filter is connected to the RF signal transceiver module; the intermediate processed signal is processed in sequence by the digital-to-analog converter, the fourth filter, the second mixing module, the first power amplifier, the fifth filter, the second power amplifier and the sixth filter to obtain a post-processing signal.

[0019] In one embodiment, the second mixing module also includes a second mixer, a high-frequency oscillator and a crystal oscillator; the second mixer is connected to the fourth filter and the first power amplifier respectively, and the second mixer is connected to the crystal oscillator through the high-frequency oscillator, and the second mixer is used to mix the frequency signal input through the high-frequency oscillator and the current signal input through the fourth filter.

[0020] In one of the embodiments, the intermediate processing module is further used to determine the signal strength of the preprocessed signal; determine the distance between the RF signal transceiver devices based on the signal strength; and adjust the gear ratio of at least one of the first power amplifier or the second power amplifier based on the distance.

[0021] In a second aspect, the present application provides a signal synchronization method, which is applied to the wireless radio frequency circuit described in the first aspect, and the method includes:

[0022] When the radio frequency signal transceiver module is connected to the preprocessing module, the electromagnetic wave is received and converted into a current signal;

[0023] Perform filtering and low-noise amplification on the current signal to obtain a preprocessing signal;

[0024] Demodulating and decoding the preprocessed signal to obtain an intermediate processed signal;

[0025] Performing filtering and power amplification on the intermediate processing signal to obtain a post-processing signal;

[0026] When the radio frequency signal transceiver module is connected to the post-processing module, the post-processing signal is converted into a processed electromagnetic wave, and the processed electromagnetic wave is transmitted.

[0027] The above-mentioned wireless RF circuit and signal synchronization method, the circuit includes an RF signal transceiver module, and a preprocessing module, an intermediate processing module and a post-processing module connected in sequence. The RF signal transceiver module can be used to receive electromagnetic waves, and convert the electromagnetic waves into current signals and output them to the preprocessing module; the preprocessing module is used to filter and low-noise amplify the current signals to obtain preprocessed signals, and transmit them to the intermediate processing module; the intermediate processing module further demodulates and decodes the preprocessed signals to obtain intermediate processed signals, and transmits them to the post-processing module; the post-processing module further filters and power amplifies the intermediate processed signals to obtain post-processed signals; the post-processed signals are transmitted to the RF signal transceiver module, and converted into processed electromagnetic waves by the RF signal transceiver module, and the processed electromagnetic waves are sent out by the RF signal transceiver module. After the electromagnetic waves received by the RF signal transceiver module are converted into current signals, they are first filtered and low-noise amplified in the circuit, which can improve the signal amplification gain and reduce noise interference; then, after demodulation and decoding, the pre-processed signal is restored to the original data, and finally filtered and power amplified, which can further reduce noise interference and achieve signal amplification. Therefore, using wireless RF circuit devices for communication is conducive to improving the accuracy of signal synchronization. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present application or related technologies, the drawings required for use in the embodiments of the present application or related technical descriptions will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0029] Figure 1 is a connection diagram of a wireless radio frequency circuit in one embodiment;

[0030] Figure 2 A connection diagram of a wireless radio frequency circuit in another embodiment;

[0031] Figure 3 A schematic diagram of a flow chart of a signal synchronization method in one embodiment;

[0032] Figure 4 FIG. 4 is a diagram showing the internal structure of a computer device in one embodiment. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0034] like Figure 1 As shown, an embodiment of the present application provides a wireless radio frequency circuit that can be used in a master device or a slave device in an electric power system, and the master device and the slave device communicate through electromagnetic waves. For example, the wireless radio frequency circuit is integrated in both the master device and the slave device. The master device receives the electromagnetic wave signal sent by the slave device, processes it through the wireless radio frequency circuit, outputs the processed electromagnetic wave and returns it to the slave device. The wireless radio frequency circuit includes: a radio frequency signal transceiver module 101, and a pre-processing module 102, an intermediate processing module 103 and a post-processing module 104 connected in sequence; wherein,

[0035] The radio frequency signal transceiver module 101 is used to receive electromagnetic waves when connected to the preprocessing module 102, and convert the electromagnetic waves into current signals; and output the current signals to the preprocessing module 102;

[0036] The preprocessing module 102 is used to filter and low-noise amplify the current signal to obtain a preprocessing signal;

[0037] The intermediate processing module 103 is used to demodulate and decode the pre-processed signal to obtain an intermediate processed signal;

[0038] A post-processing module 104, configured to filter and power-amplify the intermediate processed signal to obtain a post-processed signal;

[0039] The radio frequency signal transceiver module 101 is also used to receive the post-processing signal when connected to the post-processing module 104, convert the post-processing signal into a processed electromagnetic wave, and send the processed electromagnetic wave.

[0040] Among them, the RF signal transceiver module is used to receive and send electromagnetic waves. Specifically, when the RF signal transceiver module is connected to the preprocessing module, the electromagnetic waves are received; when the RF signal transceiver module is connected to the post-processing module, the electromagnetic waves are sent. Since the pre-processing module, the intermediate processing module, and the post-processing module in the circuit can process current signals, the RF signal transceiver module can convert the received electromagnetic waves into current signals, and convert the processed current signals into electromagnetic waves, and then send them out. When the RF signal transceiver module is connected to the pre-processing module, the RF signal transceiver module outputs the current signal to the pre-processing module.

[0041] The preprocessing module is used to filter and low-noise amplify the current signal. For example, the preprocessing module may include a filter and a low-noise amplifier. The current signal is filtered by the filter and low-noise amplified by the low-noise amplifier.

[0042] The intermediate processing module is used to demodulate and decode the preprocessed signal output by the preprocessing module. For example, the intermediate processing module includes a demodulator and a decoder, and the demodulator is used to decode the preprocessed signal.

[0043] The post-processing module is used to filter and amplify the intermediate processing signal output by the intermediate processing module. For example, the post-processing module includes a filter and a power amplifier, and the intermediate processing signal is filtered by the filter and the intermediate processing signal is amplified by the power amplifier.

[0044] When the RF signal transceiver module is connected to the post-processing module, the post-processing module outputs the post-processing signal to the RF signal transceiver module. The post-processing signal is a current signal. After receiving the post-processing signal, the RF signal transceiver module converts the post-processing signal into a processed electromagnetic wave and sends it out.

[0045] The above-mentioned wireless radio frequency circuit includes a radio frequency signal transceiver module, and a preprocessing module, an intermediate processing module and a post-processing module connected in sequence. The radio frequency signal transceiver module can be used to receive electromagnetic waves and convert the electromagnetic waves into current signals and output them to the preprocessing module; the preprocessing module is used to filter and low-noise amplify the current signals to obtain preprocessing signals, and transmit them to the intermediate processing module; the intermediate processing module further demodulates and decodes the preprocessing signals to obtain intermediate processing signals, and transmits them to the post-processing module; the post-processing module further filters and power amplifies the intermediate processing signals to obtain post-processing signals; the post-processing signals are transmitted to the radio frequency signal transceiver module, and converted into processed electromagnetic waves through the radio frequency signal transceiver module, and the processed electromagnetic waves are sent out through the radio frequency signal transceiver module. After the electromagnetic waves received by the RF signal transceiver module are converted into current signals, they are first filtered and low-noise amplified in the circuit, which can improve the signal amplification gain and reduce noise interference; then, after demodulation and decoding, the preprocessed signal is restored to the original data, and finally filtered and power amplified, which can further reduce noise interference and achieve signal amplification. Therefore, using wireless RF circuit equipment for communication is conducive to improving the accuracy of signal synchronization. In addition, this circuit uses advanced signal processing technology to analyze wireless RF synchronization signals in real time, identify and distinguish valid signals from interference signals. For valid signals, the module performs preprocessing, such as filtering and amplification, to improve their transmission characteristics; for interference signals, the module suppresses them to reduce their interference with valid signals. In this way, the module can ensure that the wireless RF synchronization signal remains efficient and stable during transmission. Different from the traditional fixed gain value or simple threshold judgment, this circuit adopts an adaptive gain control strategy. This strategy dynamically adjusts the gain value by real-time monitoring of the strength, quality and other parameters of the wireless RF synchronization signal, and combining environmental parameters (such as temperature, humidity, electromagnetic interference, etc.). This strategy can ensure that the wireless RF synchronization signal can obtain the best amplification effect in different environments, and improve the transmission efficiency and stability of the signal. This circuit integrates multiple frequency band selection switches and filters in the gain circuit to achieve efficient processing and amplification of wireless RF synchronization signals of different frequency bands. This design enables the circuit to adapt to the needs of wireless RF synchronization signals of different frequency bands, and improves the flexibility and adaptability of the circuit. This circuit reduces the cost of the wireless RF synchronization signal circuit by optimizing the circuit design and using cost-effective materials and devices. At the same time, the manufacturing cost is further reduced by simplifying the circuit structure and reducing unnecessary components. The synchronization signal is transmitted using hardware fast connection, which reduces the system delay time generated by traditional message parsing and further improves the synchronization accuracy of the wireless RF synchronization signal. The modular design concept is adopted to divide different functions into independent modules, which improves the flexibility and scalability of the system.

[0046] In an exemplary embodiment, Figure 2 In the wireless RF circuit shown in the figure, the RF signal transceiver module 101 includes a RF switch 105; the RF switch 105 is a single-pole double-throw switch. When the fixed end 106 of the RF switch is connected to the first movable end 107 of the RF switch 105, the RF signal transceiver module 101 is connected to the pre-processing module 102; when the fixed end 106 of the RF switch 105 is connected to the second movable end 108 of the RF switch 105, the RF signal transceiver module 101 is connected to the post-processing module 104.

[0047] The radio frequency signal transceiver module includes a radio frequency switch, which may be a single-pole double-throw switch for switching the signal transceiver state of the radio frequency signal transceiver module.

[0048] The radio frequency switch includes a fixed end, a first movable end, and a second movable end. The first movable end of the radio frequency switch is connected to the pre-processing module, and the second movable end of the radio frequency switch is connected to the post-processing module. When the fixed end of the radio frequency switch is connected to the first movable end, the radio frequency signal transceiver module is connected to the pre-processing module; when the fixed end of the radio frequency switch is connected to the second movable end, the radio frequency signal transceiver module is connected to the post-processing module.

[0049] refer to Figure 2 The RF switch 105 is connected to the intermediate processing module 103 via a data bus 109 , and the switching state of the RF switch 105 can be controlled by the intermediate processing module 103 .

[0050] In this embodiment, an RF switch is provided in the RF signal transceiver module, and the RF switch is a single-pole double-throw switch. By switching the fixed end of the RF switch to connect with the first movable end or the second movable end, the RF signal transceiver module is switched to connect with the preprocessing module or the post-processing module, thereby improving the flexibility of circuit control.

[0051] In an exemplary embodiment, referring to Figure 2 The radio frequency signal transceiver module 101 includes an antenna 110. The radio frequency signal transceiver module 101 is also used to receive electromagnetic waves through the antenna 110 and convert the electromagnetic waves into current signals when connected to the preprocessing module 102.

[0052] Among them, the antenna is a converter that can convert current signals into electromagnetic waves, and can also convert electromagnetic waves into current signals.

[0053] When the radio frequency signal transceiver module is connected to the preprocessing module, electromagnetic waves are received through the antenna and converted into current signals.

[0054] When the radio frequency signal transceiver module is connected to the post-processing module, the post-processing signal is converted into a processed electromagnetic wave through the antenna, and the processed electromagnetic wave is transmitted.

[0055] In this embodiment, the RF signal transceiver module includes an antenna, which can receive electromagnetic waves sent by the device and convert them into current signals that can be processed by the circuit, thereby realizing wireless RF communication between devices; after the electromagnetic waves are converted into current signals, they are processed by the circuit, which is beneficial to improving the signal quality and signal synchronization accuracy.

[0056] In an exemplary embodiment, referring to Figure 2 The preprocessing module 102 includes a first filter 111, a first low noise amplifier 112, a second filter 113, a second low noise amplifier 114, a first mixing module 115, a third filter 116 and an analog-to-digital converter 117 which are connected in sequence; the first filter 111 is connected to the RF signal transceiver module 101, and the analog-to-digital converter 117 is connected to the intermediate processing module 103; the current signal is processed by the first filter 111, the first low noise amplifier 112, the second filter 113, the second low noise amplifier 114, the first mixing module 115, the third filter 116 and the analog-to-digital converter 117 in sequence to obtain a preprocessed signal.

[0057] The preprocessing module includes a first filter, a first low noise amplifier, a second filter, a second low noise amplifier, a first mixing module, a third filter and an analog-to-digital converter connected in sequence. The first filter, the second filter and the third filter are respectively used to filter the signals flowing through them. For example, each filter can be a multi-band filter for transmitting and receiving signals. Only signals close to the resonance frequency can be transmitted, while signals of other frequencies are suppressed, so that frequencies above and below a predetermined range are attenuated, and multiple signals of different frequency bands can be processed simultaneously, which can improve the signal-to-noise ratio of the signal and thus enhance the signal quality.

[0058] The first low noise amplifier and the second low noise amplifier are used to perform low noise amplification on the signals flowing through them. The signal can be amplified by two stages of low noise amplification, which can improve the amplification gain of the signal and reduce noise interference, amplify weak signals and minimize noise interference. In the structure using two-stage low noise amplifiers, each stage of low noise amplifiers will amplify the signal to a certain extent. Therefore, the amplification gain of the two-stage low noise amplifier is the accumulation of the gain of the single-stage low noise amplifier. This enables the two-stage low noise amplifier to effectively amplify weak signals to a sufficiently large amplitude required for subsequent circuit processing. Each stage of low noise amplifier is combined with a filter to make the signal quality higher and more reliable.

[0059] In some embodiments, the first low noise amplifier and the second low noise amplifier are connected to the intermediate processing module via a data bus, and the intermediate processing module can adjust the amplification gain multiple of at least one of the first low noise amplifier or the second low noise amplifier.

[0060] The first frequency mixer module is a circuit for outputting a signal frequency equal to the sum, difference or other combination of the two input signal frequencies. The first frequency mixer module is located after the second low noise amplifier and directly processes the signal amplified by the second low noise amplifier.

[0061] The analog-to-digital converter refers to an electronic component that converts analog signals into digital signals. The signal output by the third filter is an analog signal, which is converted into a digital signal after being processed by the analog-to-digital converter. In the preprocessing module, the current signal is processed by each filter, each low-noise amplifier, the mixer, the first mixing module and the analog-to-digital converter in sequence and converted into a preprocessed signal, which is a digital signal.

[0062] In this embodiment, the preprocessing module includes a first filter, a first low-noise amplifier, a second filter, a second low-noise amplifier, a first mixing module, a third filter and an analog-to-digital converter connected in sequence. The current signal passes through the first filter, the first low-noise amplifier, the second filter, the second low-noise amplifier, the first mixing module, the third filter in sequence, until it is processed by the analog-to-digital converter and converted into a preprocessing signal. After being processed by the preprocessing module, the signal noise is reduced, the signal gain is amplified, and the signal quality is improved, which is conducive to improving the signal synchronization accuracy. In addition, this circuit can cope with complex electromagnetic environments and various interference sources, enhance the anti-interference ability of the system, and enhance the stability and reliability of the system under noise and interference.

[0063] In an exemplary embodiment, referring to Figure 2 The first mixing module 115 includes a first mixer 118, a high-frequency oscillator 119 and a crystal oscillator 120; the first mixer 115 is respectively connected to the second low-noise amplifier 114 and the third filter 116, and the first mixer 115 is connected to the crystal oscillator 120 through the high-frequency oscillator 119. The first mixer 115 is used to mix the frequency signal input through the high-frequency oscillator 119 and the current signal input through the second low-noise amplifier 114.

[0064] The first frequency mixing module includes a first frequency mixer, a high frequency oscillator and a crystal oscillator. The crystal oscillator can provide a basic clock signal for the circuit. The high frequency oscillator is used to generate a high frequency signal.

[0065] The first mixer is used to mix the signal flowing through the first mixer, and generate a new frequency combination through nonlinear transformation. Since the first mixer is connected to the second low noise amplifier and the third filter respectively, and the first mixer is connected to the crystal oscillator through the high frequency oscillator, the first mixer can receive the current signal output by the second low noise amplifier and the frequency signal input through the high frequency oscillator, and mix the frequency signal and the current signal.

[0066] To achieve the mixing function, the first mixer module needs to receive the oscillation signal from the high-frequency oscillator so that the circuit can work completely in the radio frequency band. For example, a high-precision crystal oscillator is used to output the crystal oscillator source, the high-frequency oscillator increases the signal to the target center frequency (channel), and the first mixer mixes the current signal and the intermediate frequency signal and sends it out.

[0067] In this embodiment, the first mixing module includes a first mixer, a high-frequency oscillator and a crystal oscillator. The crystal oscillator makes the synchronization signal more accurate and stable. The high-frequency oscillator increases the signal to the target center frequency. The first mixer mixes the current signal and the frequency signal flowing through and sends them out, which is beneficial to improving the synchronization accuracy and stability of the signal.

[0068] In an exemplary embodiment, referring to Figure 2 The intermediate processing module 103 includes: a processor 121; the processor 121 includes a demodulation circuit and a decoding circuit; the demodulation circuit is used to demodulate the pre-processed signal to obtain a demodulated signal; the decoding circuit is used to decode the demodulated signal to obtain an intermediate processing signal.

[0069] The intermediate processing module includes a processor. The processor may include a demodulation circuit and a decoding circuit. The demodulation circuit is used to demodulate the pre-processed signal to obtain a demodulated signal. Through the demodulation process, the carrier in the signal can be removed and the signal can be restored to the original signal. The decoding circuit can be a logic circuit, which is used to decode the demodulated signal, and the decoded signal obtained is used as the intermediate processing signal. Through the decoding process, the encoded signal can be restored to the original signal.

[0070] In this embodiment, the intermediate processing module includes a processor, and the processor includes a demodulation circuit and a decoding circuit, which are respectively used to demodulate and decode the pre-processed signal, so as to restore it to the original signal.

[0071] In an exemplary embodiment, referring to Figure 2 The intermediate processing module 103 also includes: a signal synchronization interface 122, which is used to output a rising edge when a pre-processing signal is received; the intermediate processing module 103 is also used to demodulate and decode the pre-processing signal to obtain an intermediate processing signal when a rising edge is detected in the output of the signal synchronization interface 122.

[0072] The intermediate processing module also includes a signal synchronization interface, which can output a rising edge when receiving the preprocessing signal transmitted by the preprocessing module. When the intermediate processing module detects the rising edge output by the signal synchronization interface, it demodulates and decodes the preprocessing signal to obtain the intermediate processing signal.

[0073] In some embodiments, the signal synchronization interface is connected to the processor of the intermediate processing module. When the processor detects the rising edge of the signal synchronization interface output, the pre-processed signal is demodulated and decoded to obtain the intermediate processing signal. By setting the signal synchronization interface, it is beneficial to achieve the purpose of fast signal synchronization.

[0074] In some embodiments, reference Figure 2 The intermediate processing module also includes a data communication interface 123, one end of the data communication interface 123 is connected to the processor 121, and the other end is connected to a computer or other device to realize data transmission and sharing.

[0075] In this embodiment, the intermediate processing module includes a signal synchronization interface, which is used to output a rising edge when receiving a preprocessing signal transmitted by the preprocessing module. The method of detecting the rising edge output by the signal synchronization interface is conducive to quickly determining that the synchronization signal has been received, which is conducive to achieving the purpose of rapid signal synchronization.

[0076] In an exemplary embodiment, the post-processing module 104 includes a digital-to-analog converter 124, a fourth filter 125, a second mixing module 126, a first power amplifier 127, a fifth filter 128, a second power amplifier 129 and a sixth filter 130 connected in sequence; the digital-to-analog converter 124 is connected to the intermediate processing module 103; the sixth filter 130 is connected to the RF signal transceiver module 101; the intermediate processed signal 103 is processed in sequence by the digital-to-analog converter 124, the fourth filter 125, the second mixing module 126, the first power amplifier 127, the fifth filter 128, the second power amplifier 129 and the sixth filter 130 to obtain a post-processing signal.

[0077] The post-processing module includes a digital-to-analog converter, a fourth filter, a second mixing module, a first power amplifier, a fifth filter, a second power amplifier and a sixth filter which are connected in sequence.

[0078] The digital-to-analog converter is an electronic component that converts digital signals into analog signals. Since the signal processed in the intermediate processing module is a digital signal, the intermediate processed signal output by the intermediate processing module is a digital signal. The intermediate processed signal can be converted into an analog signal through the digital-to-analog converter.

[0079] The fourth filter, the fifth filter, and the sixth filter are respectively used to filter the signals flowing through them. For example, each filter can be a multi-band filter, which is used to transmit and receive signals. Only signals close to the resonance frequency can be transmitted, while signals of other frequencies are suppressed, so that frequencies above and below the predetermined range are attenuated, and multiple signals of different frequency bands can be processed simultaneously, which can improve the signal-to-noise ratio of the signal and thus enhance the signal quality.

[0080] The first power amplifier and the second power amplifier are respectively used to power amplify the signals flowing through them. In some embodiments, the first power amplifier and the second power amplifier can be composed of multiple cascaded power amplifiers, and each power amplifier can be a power amplifier with adjustable gain. Each adjustable power amplifier can amplify the voltage of the input signal by a preset multiple, and the output power can be adjusted through the data bus. This two-stage power amplifier structure can effectively amplify weak signals into strong signals for processing and transmission in subsequent circuits. The total gain rate of the two-stage power amplifier is usually the product of the gain rate of each level, thereby achieving a large amplification of the signal. Each stage of the power amplifier is equipped with a filter, so that the amplified signal is more in line with the design, the signal is more reliable and the signal quality is higher.

[0081] In some embodiments, the first power amplifier and the second power amplifier are connected to the intermediate processing module via a data bus, and the intermediate processing module can adjust the amplification gain multiple of at least one of the first power amplifier or the second power amplifier.

[0082] The second frequency mixing module is a circuit for outputting a signal frequency equal to the sum, difference or other combination of the two input signal frequencies. The second frequency mixing module is located after the fourth filter and directly processes the signal filtered by the fourth filter.

[0083] The intermediate processed signal is processed by the digital-to-analog converter, the fourth filter, the second mixing module, the first power amplifier, the fifth filter, the second power amplifier and the sixth filter in sequence to obtain a post-processed signal. The post-processed signal is an analog signal.

[0084] In this embodiment, the post-processing module includes a digital-to-analog converter, a fourth filter, a second mixing module, a first power amplifier, a fifth filter, a second power amplifier and a sixth filter connected in sequence. The intermediate processing signal is processed by the digital-to-analog converter, the fourth filter, the second mixing module, the first power amplifier, the fifth filter, the second power amplifier and the sixth filter in sequence and converted into a post-processing signal. After being processed by the post-processing module, the signal noise is reduced, the signal gain is amplified, and the signal quality is improved, which is conducive to improving the signal synchronization accuracy.

[0085] In an exemplary embodiment, referring to Figure 2 The second mixing module 126 also includes a second mixer 131, a high-frequency oscillator 119 and a crystal oscillator 120; the second mixer 131 is respectively connected to the fourth filter 125 and the first power amplifier 127, and the second mixer 131 is connected to the crystal oscillator 120 through the high-frequency oscillator 119, and the second mixer 131 is used to mix the frequency signal input through the high-frequency oscillator 119 and the current signal input through the fourth filter 125.

[0086] The second frequency mixing module includes a second frequency mixer, a high frequency oscillator and a crystal oscillator. The crystal oscillator can provide a basic clock signal for the circuit. The high frequency oscillator is used to generate a high frequency signal.

[0087] The second mixer is used to mix the signal flowing through the second mixer, and generate a new frequency combination through nonlinear transformation. Since the second mixer is connected to the fourth filter and the first power amplifier respectively, and the second mixer is connected to the crystal oscillator through the high-frequency oscillator, the second mixer can receive the current signal output by the fourth filter and the frequency signal input through the high-frequency oscillator, and mix the frequency signal and the current signal.

[0088] To achieve the mixing function, the second mixer module needs to receive the oscillation signal from the high-frequency oscillator so that the circuit can work completely in the RF band. For example, a high-precision crystal oscillator is used to output the crystal oscillator source. The high-frequency oscillator increases the signal to the target center frequency (channel), and the second mixer mixes the current signal and the intermediate frequency signal and sends it out.

[0089] In some embodiments, Figure 2 All devices included in the circuit shown can be integrated into an independent module to achieve modular design and flexible configuration options to meet the needs of different application scenarios. In addition, the complexity and cost of the system can be reduced while maintaining high performance by simplifying the hardware structure, optimizing the algorithm complexity, and using lower-cost components. Through modular design and flexible configuration options, the needs of different application scenarios can be met and the scalability and maintainability of the system can be improved.

[0090] In this embodiment, the second frequency mixing module includes a second mixer, a high-frequency oscillator and a crystal oscillator. The crystal oscillator makes the synchronization signal more accurate and stable. The high-frequency oscillator increases the signal to the target center frequency. The second mixer mixes the current signal and the frequency signal flowing through and sends them out, which is conducive to improving the synchronization accuracy and stability of the signal. Among them, a high-precision crystal oscillator is used as a time reference source, the temperature characteristics of all devices are consistent, and the thermal stability can be excellent when working together; in addition, the accuracy and stability of each device are consistent, and the delay of data transmission is fixed. This principle can be used to further improve the synchronization accuracy.

[0091] In an exemplary embodiment, the intermediate processing module is also used to determine the signal strength of the preprocessed signal; determine the distance between the RF signal transceiver devices based on the signal strength; and adjust the gear ratio of at least one of the first power amplifier or the second power amplifier based on the distance.

[0092] The gain of the first power amplifier or the second power amplifier is adjustable, and the first power amplifier or the second power amplifier is connected to the processor in the intermediate processing module via a data bus. The processor determines the signal strength of the preprocessed signal, and different signal strengths can determine the distance between the radio frequency signal transceiver devices, for example, the distance between the master and slave devices communicating via the radio frequency signal can be determined.

[0093] Different distances correspond to different gear ratios. In some embodiments, the processor stores a mapping relationship between distances and gear ratios, and by querying the mapping relationship, the gear ratio corresponding to the distance can be determined.

[0094] In some embodiments, the processor may also be configured to adjust a gear ratio of at least one of the first low noise amplifier or the second low noise amplifier according to the distance.

[0095] In this embodiment, the intermediate processing module determines the signal strength and thereby adjusts the gear ratio of at least one of the first power amplifier or the second power amplifier. By adjusting the first power amplifier or the second power amplifier according to the determined gear ratio, signals at different distances can be amplified at different ratios, which is beneficial to improving signal synchronization accuracy.

[0096] like Figure 3 As shown, the signal synchronization method provided in the embodiment of the present application can be applied to Figure 1 The wireless radio frequency circuit shown in FIG. The wireless radio frequency circuit can be integrated into a computer device, and the computer device can be a master device or a slave device of the power system. The processing module in the computer device is used to specify a signal synchronization method, and the method includes:

[0097] Step 301, when the radio frequency signal transceiver module is connected to the preprocessing module, the electromagnetic wave is received and converted into a current signal;

[0098] Step 302, filtering and low-noise amplifying the current signal to obtain a preprocessed signal;

[0099] Step 303, demodulating and decoding the pre-processed signal to obtain an intermediate processed signal;

[0100] Step 304, filtering and power amplifying the intermediate processed signal to obtain a post-processed signal;

[0101] Step 305: When the radio frequency signal transceiver module is connected to the post-processing module, the post-processing signal is converted into a processed electromagnetic wave, and the processed electromagnetic wave is transmitted.

[0102] The above-mentioned signal synchronization method, since the electromagnetic waves received by the RF signal transceiver module are converted into current signals, they are first filtered and low-noise amplified in the circuit, which can improve the signal amplification gain and reduce noise interference; then, after demodulation and decoding, the pre-processed signal is restored to the original data, and finally filtered and power amplified, which can further reduce noise interference and achieve signal amplification. Therefore, using wireless RF circuit equipment for communication is conducive to improving the accuracy of signal synchronization.

[0103] In some embodiments, the signal synchronization method also includes: when the fixed end of the RF switch is connected to the first moving end of the RF switch, the RF signal transceiver module is connected to the pre-processing module; when the fixed end of the RF switch is connected to the second moving end of the RF switch, the RF signal transceiver module is connected to the post-processing module.

[0104] In this embodiment, an RF switch is provided in the RF signal transceiver module, and the RF switch is a single-pole double-throw switch. By switching the fixed end of the RF switch to connect with the first movable end or the second movable end, the RF signal transceiver module is switched to connect with the preprocessing module or the post-processing module, thereby improving the flexibility of circuit control.

[0105] In some embodiments, when the RF signal transceiver module is connected to the preprocessing module, electromagnetic waves are received and converted into current signals, including: when the RF signal transceiver module is connected to the preprocessing module, electromagnetic waves are received through the antenna and converted into current signals.

[0106] In this embodiment, the RF signal transceiver module includes an antenna, which can receive electromagnetic waves sent by the device and convert them into current signals that can be processed by the circuit, thereby realizing wireless RF communication between devices; after the electromagnetic waves are converted into current signals, they are processed by the circuit, which is beneficial to improving the signal quality and signal synchronization accuracy.

[0107] In some embodiments, the current signal is filtered and low-noise amplified to obtain a preprocessed signal, including: the current signal is processed in sequence by a first filter, a first low-noise amplifier, a second filter, a second low-noise amplifier, a first mixing module, a third filter and an analog-to-digital converter to obtain a preprocessed signal.

[0108] In this embodiment, the preprocessing module includes a first filter, a first low-noise amplifier, a second filter, a second low-noise amplifier, a first mixing module, a third filter and an analog-to-digital converter connected in sequence. The current signal passes through the first filter, the first low-noise amplifier, the second filter, the second low-noise amplifier, the first mixing module, the third filter in sequence until it is processed by the analog-to-digital converter and converted into a preprocessed signal. After being processed by the preprocessing module, the signal noise is reduced, the signal gain is amplified, and the signal quality is improved, which is beneficial to improving the signal synchronization accuracy.

[0109] In some embodiments, the signal synchronization method further includes: mixing a frequency signal input through a high frequency oscillator and a current signal input through a second low noise amplifier.

[0110] In this embodiment, the first mixing module includes a first mixer, a high-frequency oscillator and a crystal oscillator. The crystal oscillator makes the synchronization signal more accurate and stable. The high-frequency oscillator increases the signal to the target center frequency. The first mixer mixes the current signal and the frequency signal flowing through and sends them out, which is beneficial to improving the synchronization accuracy and stability of the signal.

[0111] In some embodiments, demodulating and decoding the preprocessed signal to obtain an intermediate processed signal includes: demodulating the preprocessed signal to obtain a demodulated signal; and decoding the demodulated signal to obtain an intermediate processed signal.

[0112] In this embodiment, the intermediate processing module includes a processor, and the processor includes a demodulation circuit and a decoding circuit, which are respectively used to demodulate and decode the pre-processed signal, so as to restore it to the original signal.

[0113] In some embodiments, demodulating and decoding the preprocessed signal to obtain the intermediate processed signal includes: upon detecting a rising edge of the signal synchronization interface output, demodulating and decoding the preprocessed signal to obtain the intermediate processed signal.

[0114] In this embodiment, the intermediate processing module includes a signal synchronization interface, which is used to output a rising edge when receiving a preprocessing signal transmitted by the preprocessing module. The method of detecting the rising edge output by the signal synchronization interface is conducive to quickly determining that the synchronization signal has been received, which is conducive to achieving the purpose of rapid signal synchronization.

[0115] In some embodiments, the intermediate processed signal is filtered and power amplified to obtain a post-processed signal, including: the intermediate processed signal is processed in sequence by a digital-to-analog converter, a fourth filter, a second mixer, a first power amplifier, a fifth filter, a second power amplifier and a sixth filter to obtain a post-processed signal.

[0116] In this embodiment, the post-processing module includes a digital-to-analog converter, a fourth filter, a second mixing module, a first power amplifier, a fifth filter, a second power amplifier and a sixth filter connected in sequence. The intermediate processing signal is processed by the digital-to-analog converter, the fourth filter, the second mixing module, the first power amplifier, the fifth filter, the second power amplifier and the sixth filter in sequence and converted into a post-processing signal. After being processed by the post-processing module, the signal noise is reduced, the signal gain is amplified, and the signal quality is improved, which is conducive to improving the signal synchronization accuracy.

[0117] In some embodiments, the signal synchronization method further includes: determining the signal strength of the preprocessed signal; determining the distance between the RF signal transceiver devices based on the signal strength; and adjusting the gear ratio of at least one of the first power amplifier or the second power amplifier based on the distance.

[0118] In this embodiment, the intermediate processing module determines the signal strength and thereby adjusts the gear ratio of at least one of the first power amplifier or the second power amplifier. By adjusting the first power amplifier or the second power amplifier according to the determined gear ratio, signals at different distances can be amplified at different ratios, which is beneficial to improving signal synchronization accuracy.

[0119] It should be understood that, although the various steps in the flowcharts involved in the above-mentioned embodiments are displayed in sequence according to the indication of the arrows, these steps are not necessarily executed in sequence according to the order indicated by the arrows. Unless there is a clear explanation in this article, the execution of these steps does not have a strict order restriction, and these steps can be executed in other orders. Moreover, at least a part of the steps in the flowcharts involved in the above-mentioned embodiments can include multiple steps or multiple stages, and these steps or stages are not necessarily executed at the same time, but can be executed at different times, and the execution order of these steps or stages is not necessarily to be carried out in sequence, but can be executed in turn or alternately with other steps or at least a part of the steps or stages in other steps.

[0120] In an exemplary embodiment, a computer device is provided. The computer device may be a terminal, and its internal structure diagram may be as shown in FIG. Figure 4As shown. The computer device includes a processor, a memory, an input / output interface, a communication interface, a display unit and an input device. The processor, the memory and the input / output interface are connected through a system bus, and the communication interface, the display unit and the input device are connected to the system bus through the input / output interface. The processor of the computer device is used to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the operation of the operating system and the computer program in the non-volatile storage medium. The input / output interface of the computer device is used to exchange information between the processor and an external device. The communication interface of the computer device is used to communicate with an external terminal in a wired or wireless manner, and the wireless manner can be implemented through WIFI, a mobile cellular network, near field communication (NFC) or other technologies. When the computer program is executed by the processor, a signal synchronization method is implemented. The display unit of the computer device is used to form a visually visible picture, which can be a display screen, a projection device or a virtual reality imaging device. The display screen can be a liquid crystal display screen or an electronic ink display screen, and the input device of the computer device can be a touch layer covering the display screen, or a button, trackball or touchpad set on the computer device shell, or an external keyboard, touchpad or mouse.

[0121] Those skilled in the art will understand that Figure 4 The structure shown in the figure is only a block diagram of a part of the structure related to the solution of the present application, and does not constitute a limitation on the computer device to which the solution of the present application is applied. The specific computer device may include more or fewer components than those shown in the figure, or combine certain components, or have a different arrangement of components.

[0122] In an exemplary embodiment, a computer device is provided, including a memory and a processor, wherein a computer program is stored in the memory, and the processor implements the steps in the above-mentioned method embodiments when executing the computer program.

[0123] In one embodiment, a computer-readable storage medium is provided, on which a computer program is stored. When the computer program is executed by a processor, the steps in the above-mentioned method embodiments are implemented.

[0124] In one embodiment, a computer program product is provided, including a computer program, which implements the steps in the above method embodiments when executed by a processor.

[0125] It should be noted that the user information (including but not limited to user device information, user personal information, etc.) and data (including but not limited to data used for analysis, stored data, displayed data, etc.) involved in this application are all information and data authorized by the user or fully authorized by all parties, and the collection, use and processing of relevant data must comply with relevant regulations.

[0126] A person of ordinary skill in the art can understand that all or part of the processes in the above-mentioned embodiment method can be completed by instructing the relevant hardware through a computer program, and the computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the embodiments of the above-mentioned methods. Among them, any reference to the memory, database or other medium used in the embodiments provided in the present application can include at least one of non-volatile memory and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical memory, high-density embedded non-volatile memory, resistive random access memory (ReRAM), magnetic random access memory (MRAM), ferroelectric random access memory (FRAM), phase change memory (PCM), graphene memory, etc. Volatile memory can include random access memory (RAM) or external cache memory, etc. As an illustration and not limitation, RAM can be in various forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM). The database involved in each embodiment provided in this application may include at least one of a relational database and a non-relational database. Non-relational databases may include distributed databases based on blockchains, etc., but are not limited to this. The processor involved in each embodiment provided in this application may be a general-purpose processor, a central processing unit, a graphics processor, a digital signal processor, a programmable logic device, a data processing logic device based on quantum computing, an artificial intelligence (AI) processor, etc., but are not limited to this.

[0127] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this application.

[0128] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the attached claims.

Claims

1. A wireless radio frequency circuit, characterized in that: include: A radio frequency signal transceiver module, and a pre-processing module, an intermediate processing module and a post-processing module connected in sequence; wherein, The radio frequency signal transceiver module is used to receive electromagnetic waves when connected to the preprocessing module, and convert the electromagnetic waves into current signals; and output the current signals to the preprocessing module; The preprocessing module is used to perform filtering and low-noise amplification on the current signal to obtain a preprocessing signal; An intermediate processing module, used for demodulating and decoding the pre-processed signal to obtain an intermediate processed signal; A post-processing module, used for filtering and power amplifying the intermediate processed signal to obtain a post-processing signal; The radio frequency signal transceiver module is also used to receive the post-processing signal when connected to the post-processing module, convert the post-processing signal into a processed electromagnetic wave, and send the processed electromagnetic wave.

2. The wireless radio frequency circuit according to claim 1, characterized in that: The RF signal transceiver module includes a RF switch; the RF switch is a single-pole double-throw switch. When the fixed end of the RF switch is connected to the first movable end of the RF switch, the RF signal transceiver module is connected to the pre-processing module; when the fixed end of the RF switch is connected to the second movable end of the RF switch, the RF signal transceiver module is connected to the post-processing module.

3. The wireless radio frequency circuit according to claim 1, characterized in that: The radio frequency signal transceiver module includes an antenna. When the radio frequency signal transceiver module is connected to the preprocessing module, it is also used to receive electromagnetic waves through the antenna and convert the electromagnetic waves into current signals.

4. The wireless radio frequency circuit according to claim 1, characterized in that: The preprocessing module includes a first filter, a first low-noise amplifier, a second filter, a second low-noise amplifier, a first mixing module, a third filter and an analog-to-digital converter connected in sequence; the first filter is connected to the RF signal transceiver module, and the analog-to-digital converter is connected to the intermediate processing module; the current signal is processed by the first filter, the first low-noise amplifier, the second filter, the second low-noise amplifier, the first mixing module, the third filter and the analog-to-digital converter in sequence to obtain a preprocessed signal.

5. The wireless radio frequency circuit according to claim 4, characterized in that: The first mixing module includes a first mixer, a high-frequency oscillator and a crystal oscillator; the first mixer is connected to the second low-noise amplifier and the third filter respectively, and the first mixer is connected to the crystal oscillator through the high-frequency oscillator, and the first mixer is used to mix the frequency signal input through the high-frequency oscillator and the current signal input through the second low-noise amplifier.

6. The wireless radio frequency circuit according to claim 1, characterized in that: The intermediate processing module includes: a processor; the processor includes a demodulation circuit and a decoding circuit; the demodulation circuit is used to demodulate the pre-processed signal to obtain a demodulated signal; the decoding circuit is used to decode the demodulated signal to obtain an intermediate processed signal.

7. The wireless radio frequency circuit according to claim 1, characterized in that: The intermediate processing module also includes: a signal synchronization interface, which is used to output a rising edge when the pre-processing signal is received; the intermediate processing module is also used to demodulate and decode the pre-processing signal to obtain an intermediate processing signal when a rising edge is detected output by the signal synchronization interface.

8. The wireless radio frequency circuit according to claim 1, characterized in that: The post-processing module includes a digital-to-analog converter, a fourth filter, a second mixing module, a first power amplifier, a fifth filter, a second power amplifier and a sixth filter connected in sequence; the digital-to-analog converter is connected to the intermediate processing module; the sixth filter is connected to the RF signal transceiver module; the intermediate processed signal is processed by the digital-to-analog converter, the fourth filter, the second mixing module, the first power amplifier, the fifth filter, the second power amplifier and the sixth filter in sequence to obtain a post-processing signal.

9. The wireless radio frequency circuit according to claim 8, characterized in that: The intermediate processing module is also used to determine the signal strength of the preprocessed signal; determine the distance between the RF signal transceiver devices according to the signal strength; and adjust the gear ratio of at least one of the first power amplifier or the second power amplifier according to the distance.

10. A signal synchronization method, characterized in that: Applied to the wireless radio frequency circuit according to any one of claims 1 to 9, the method comprising: When the radio frequency signal transceiver module is connected to the preprocessing module, the electromagnetic wave is received and converted into a current signal; Performing filtering and low-noise amplification on the current signal to obtain a preprocessing signal; Demodulating and decoding the preprocessed signal to obtain an intermediate processed signal; Performing filtering and power amplification on the intermediate processed signal to obtain a post-processed signal; When the radio frequency signal transceiver module is connected to the post-processing module, the post-processing signal is converted into a processed electromagnetic wave, and the processed electromagnetic wave is transmitted.

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