A radio frequency system and its remote control method, device, and readable storage medium

Abstract

The present invention discloses a radio frequency system and a remote control method, device and readable storage medium thereof, and relates to the field of radio frequency. A slave controller is arranged at a radio frequency front end, and a master controller is arranged at a remote control unit. After acquiring a control logic signal required by the radio frequency front end, the master controller of the remote control unit converts the control logic signal into a preset alternating current signal, and transmits the preset alternating current signal in series to the slave controller of the radio frequency front end through a preset cable, so as to realize the control process of the radio frequency front end, and the radio frequency signal is also transmitted through the preset cable. By converting the control logic signal into the form of an alternating current signal, the control signal can be directly transmitted through the preset cable. Only a preset cable is arranged between the radio frequency front end and the remote control unit, so as to simultaneously realize the transmission process of the control signal and the radio frequency signal in the remote control process of the radio frequency system, without arranging too many cables, thereby reducing the weight and cost of the entire radio frequency system and avoiding the influence of the load on the aircraft.

Description

Technical Field

[0001] The present invention relates to the field of radio frequency, and in particular to a radio frequency system and a remote control method, device, and readable storage medium thereof. Background Art

[0002] In communication or radar systems, in order to ensure RF performance, the RF front end is usually arranged close to the antenna, and the remote control unit controls the RF front end transceiver switching, link gain, pass filter setting, antenna polarization and other functions. For example, the RF front end can be set in an extravehicular device on an aircraft or satellite, and the remote control unit can be set in the cabin of the aircraft or satellite. The RF front end and the remote control unit together form a set of RF remote system. The remote control unit can realize functions such as remote communication by controlling the RF front end set at the remote end.

[0003] In this RF remote system, RF signals and control signals need to be transmitted between the remote control unit and the RF front end. In the prior art, the transmission of RF signals and control signals is mainly achieved by setting up multiple cables, that is, RF cables specially used to transmit RF signals and control cables specially used to transmit control signals are set up; multiple cables need to be set up in the entire RF system, resulting in a large overall weight of the cables, which affects the aircraft payload and also increases the cost of the entire RF system. Summary of the invention

[0004] The object of the present invention is to provide a radio frequency system and a remote control method, device, and readable storage medium thereof. By converting a control logic signal into an AC signal, the control signal can be directly transmitted through a preset cable. Only a preset cable is provided between the radio frequency front end and the remote control unit to simultaneously realize the transmission process of the control signal and the radio frequency signal in the remote control process of the radio frequency system. There is no need to set up too many cables, thereby reducing the weight and cost of the entire radio frequency system and avoiding the impact on the aircraft load.

[0005] In order to solve the above technical problems, the present invention provides a remote control method for a radio frequency system, which is applied to a main controller in a remote control unit of the radio frequency system, wherein the radio frequency system further comprises a radio frequency front end provided with a slave controller, the radio frequency end of the radio frequency front end and the radio frequency end of the remote control unit are connected via a preset cable, and the slave controller and the main controller are connected via the preset cable; the remote control method for the radio frequency system comprises:

[0006] Obtaining the control logic signal required by the radio frequency front end;

[0007] Converting the control logic signal into a preset AC signal;

[0008] The preset AC signal is output to the RF front end through the preset cable in a serial transmission manner, so that the RF front end transmits and receives a RF signal based on the preset AC signal.

[0009] Optionally, the RF front end further includes a RF device, and before obtaining the control logic signal required by the RF front end, the method further includes:

[0010] Determining a target control logic of the radio frequency device in the radio frequency front end;

[0011] The target control logic of the radio frequency device is serialized based on a preset transmission protocol to generate a control logic signal required by the radio frequency front end; the preset transmission protocol includes a start bit, a data bit and a stop bit, and the data bit is used to store the target control logic of the radio frequency device.

[0012] Optionally, it also includes:

[0013] When the radio frequency system needs to transmit a signal, configuring the work enable signal of the radio frequency system to a first level state in advance for a first preset time length, so as to trigger the step of obtaining the control logic signal required by the radio frequency front end;

[0014] When the signal transmission of the radio frequency system is finished, the operation enable signal of the radio frequency system is configured to a second level state after a second preset time period.

[0015] Optionally, converting the control logic signal into a preset AC signal includes:

[0016] Convert the control logic signal into a corresponding preset square wave signal, when the control logic signal is 0, the preset square wave signal is a first square wave signal, and when the control logic signal is 1, the preset square wave signal is a second square wave signal;

[0017] The preset square wave signal is filtered to convert it into a preset sinusoidal signal.

[0018] Optionally, the radio frequency front end performs transmission and reception of a radio frequency signal based on the preset AC signal, including:

[0019] The RF front end receives the preset sinusoidal signal and restores the preset sinusoidal signal to a control logic signal;

[0020] The restored control logic signal is distributed to the corresponding radio frequency device to transmit and receive the radio frequency signal.

[0021] Optionally, restoring the preset sinusoidal signal to a control logic signal comprises:

[0022] Performing analog preprocessing on the preset sinusoidal signal to restore the preset sinusoidal signal to a restored signal in a square wave form;

[0023] The restored signal is decoded into a control logic signal based on the corresponding relationship between the preset square wave signal and the control logic signal.

[0024] To solve the above technical problems, the present invention also provides a radio frequency system, comprising a remote control unit provided with a main controller and a radio frequency front end provided with a slave controller, wherein the first radio frequency end of the radio frequency front end is connected to the radio frequency end of the remote control unit through a preset cable, and the second radio frequency end is connected to the radio frequency antenna, and the slave controller is connected to the main controller through the preset cable; the main controller is used to implement the remote control method of the radio frequency system as described above.

[0025] Optionally, it also includes a first DC blocking capacitor and a second DC blocking capacitor, wherein the first end of the first DC blocking capacitor is connected to the RF end of the remote control unit, and the second end is connected to the first end of the preset cable, and the first end of the second DC blocking capacitor is connected to the second end of the preset cable, and the second end is connected to the first RF end of the RF front end.

[0026] In order to solve the above technical problems, the present invention further provides a remote control device for a radio frequency system, which is applied to a main controller in a remote control unit of the radio frequency system, wherein the radio frequency system further comprises a radio frequency front end provided with a slave controller, the radio frequency end of the radio frequency front end and the radio frequency end of the remote control unit are connected via a preset cable, and the slave controller and the main controller are connected via the preset cable; the remote control device for the radio frequency system comprises:

[0027] A logic signal acquisition unit, used to acquire the control logic signal required by the RF front end;

[0028] A signal conversion unit, used for converting the control logic signal into a preset AC signal;

[0029] The signal transmission unit is used to output the preset AC signal to the RF front end through the preset cable in a serial transmission manner, so that the RF front end can transmit and receive RF signals based on the preset AC signal.

[0030] In order to solve the above technical problems, the present invention also provides a computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, the steps of the remote control method of the radio frequency system as described above are implemented.

[0031] The present invention provides a remote control method for a radio frequency system, wherein a slave controller is provided at a radio frequency front end, and a master controller is provided at a remote control unit. After acquiring a control logic signal required by the radio frequency front end, the master controller of the remote control unit converts the control logic signal into a preset alternating current signal, and transmits the preset alternating current signal in series to the slave controller of the radio frequency front end through a preset cable, so as to realize a control process of the radio frequency front end, and the radio frequency signal is also transmitted through the preset cable. By converting the control logic signal into an alternating current signal, the control signal can be directly transmitted through the preset cable. Only a preset cable is provided between the radio frequency front end and the remote control unit, so as to simultaneously realize the transmission process of the control signal and the radio frequency signal in the remote control process of the radio frequency system, without providing too many cables, thereby reducing the weight and cost of the entire radio frequency system and avoiding the impact on the aircraft load.

[0032] The present invention also provides a radio frequency system, a remote control device for the radio frequency system, and a computer-readable storage medium, which have the same beneficial effects as the remote control method for the radio frequency system described above. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the prior art and the drawings required for use in the embodiments are 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 creative work.

[0034] Figure 1 A schematic flow chart of a remote control method for a radio frequency system provided by the present invention;

[0035] Figure 2 A schematic diagram of the structure of a radio frequency system provided by the present invention;

[0036] Figure 3 A schematic diagram of the structure of a control system of a radio frequency system provided by the present invention;

[0037] Figure 4 A schematic diagram of a preset transmission protocol provided by the present invention;

[0038] Figure 5 A schematic diagram of the corresponding relationship between a preset square wave signal and a digital signal provided by the present invention;

[0039] Figure 6 A schematic diagram of a processing flow of a slave controller provided by the present invention;

[0040] Figure 7 A schematic diagram of the structure of another radio frequency system provided by the present invention;

[0041] Figure 8 A schematic structural diagram of a remote control device for a radio frequency system provided by the present invention. DETAILED DESCRIPTION

[0042] The core of the present invention is to provide a radio frequency system and its remote control method, device, and readable storage medium. By converting the control logic signal into an AC signal, the control signal can be directly transmitted through a preset cable. Only a preset cable is set between the radio frequency front end and the remote control unit to simultaneously realize the transmission process of the control signal and the radio frequency signal in the remote control process of the radio frequency system. There is no need to set up too many cables, which reduces the weight and cost of the entire radio frequency system and avoids the impact on the aircraft load.

[0043] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0044] Please refer to Figure 1 , Figure 1 A flowchart of a method for controlling the remoteness of a radio frequency system provided by the present invention; please refer to Figure 2 , Figure 2 A schematic diagram of the structure of a radio frequency system provided by the present invention; To solve the above technical problems, the present invention provides a remote control method of a radio frequency system, which is applied to a main controller in a remote control unit of the radio frequency system, the radio frequency system also includes a radio frequency front end provided with a slave controller, the radio frequency end of the radio frequency front end and the radio frequency end of the remote control unit are connected through a preset cable, and the slave controller and the main controller are connected through a preset cable; the remote control method of the radio frequency system includes:

[0045] S11: Obtain the control logic signal required by the RF front end;

[0046] It is not difficult to understand that the main controller in the remote control unit needs to transmit the control signal to the slave controller in the RF front end, and then the slave controller performs logical control on the RF device in the RF front end according to the control signal. Therefore, the main controller in the remote control unit needs to determine the control logic signal required by the RF device in the RF front end according to the current working status of the RF front end and the working status of the application requirements, so as to achieve effective control of the RF front end. This application does not make any special limitations on the specific method of obtaining the control logic signal required by the RF front end.

[0047] S12: converting the control logic signal into a preset AC signal;

[0048] It can be understood that the preset cable is set between the RF end of the RF front end and the RF end of the remote control unit, and is used to transmit the RF signal between the RF front end and the remote control unit. It is a RF cable in the RF system. The present application directly reuses this preset cable to transmit the control signal of the RF system; considering that the RF signal is an analog signal, and the control logic signal required by the RF front end is a logical digital baseband signal, it cannot be directly transmitted over a long distance through the preset cable. Therefore, the main controller needs to first convert the control logic signal into a preset AC signal, which is an analog signal similar to a sine wave. The control signal is in the form of a preset AC signal through a preset cable to achieve long-distance transmission between the RF front end and the remote control unit, thereby reducing the weight and cost of the entire RF remote system. The present application does not make any special restrictions on the specific type and implementation method of the preset AC signal. There are many implementation methods for the correspondence between the control logic signal and the preset AC signal, and the present application does not make any special restrictions here.

[0049] S13: Outputting a preset AC signal to the RF front end through a preset cable in a serial transmission manner, so that the RF front end transmits and receives a RF signal based on the preset AC signal.

[0050] Considering that the RF front end usually includes multiple RF devices that need to be controlled. Therefore, the control logic signals required by the RF front end are usually multiple. In the prior art, multiple cables are set to transmit the control logic signals to the RF front end in parallel. However, in the case of transmitting only RF signals, the preset cable is usually only set as a single cable. Therefore, in order to ensure the light weight and low cost of the entire RF system, the present application transmits the converted preset AC signal to the RF front end by serial transmission, so that the preset cable can still maintain the setting of a single cable, and no additional cable settings will be added, thereby realizing the effective transmission of the preset AC signal. The present application does not make any special restrictions on the specific type and implementation method of the preset cable, and it can be implemented by coaxial cable and other methods.

[0051] It should be noted that in the prior art, in the process of transmitting control logic signals in parallel, corresponding multiple IO ports are set in the RF front end and the remote control unit to realize the parallel transmission of multiple control logic signals one by one. However, the complex setting of multiple IO ports is avoided in the present application. A dedicated slave controller is set in the RF front end, the slave controller receives a preset AC signal for serial transmission, and the control logic signal of each RF device is allocated based on the preset AC signal, thereby realizing effective and accurate control of the RF device. The master controller and the slave controller only need to set one IO port, and the two IO ports can support the transmission process of bidirectional control signals.

[0052] It should be noted that the present application does not make any special restrictions on the location, specific type and implementation of the RF front end and remote control unit. The RF front end is usually coordinated with the RF antenna and is set in the signal coverage area to facilitate the reception and transmission of RF signals. The remote control unit realizes the control of the working state of the RF front end and the working process of the entire RF system, and is usually set at a remote location that is convenient for operation and control; FEM (Front-end Modules) usually includes LNA (Low Noise Amplifier) ​​and PA (Power Amplifier), and may also include units such as mixers. The remote control unit is generally a baseband chip or CPU (Central Processing Unit), and may also include an AD / DA (analog-to-digital conversion / digital-to-analog conversion) chip that controls the logic of the RF front end. The present application does not make any special restrictions on the specific types and implementation methods of the master controller and the slave controller.

[0053] Furthermore, sometimes it is necessary to transmit power signals and / or clock signals between the RF front end and the remote control unit. In this case, the power signals and clock signals can be further transmitted through a preset cable. In order to avoid the influence of the power signal on the RF signal, it is necessary to further add DC blocking capacitors at the front and back ends of the preset cable to avoid the DC signal causing abnormal DC bias in the RF signal, thereby affecting the performance of the RF signal. In addition, the clock signal can also be transmitted through the preset cable, so that one RF line is used to connect the remote control unit and the RF front end. One preset cable replaces multiple cables in the prior art, thereby reducing the weight and cost of the system and simplifying the entire RF system.

[0054] As a specific embodiment, Figure 2As shown, the RF front end includes an RF amplifier, a frequency selection filter and a mixer. The slave controller is connected to a preset cable, receives a preset AC signal output by the main controller to the preset cable through the preset cable, and distributes control logic signals output to the RF amplifier and the frequency selection filter through the preset AC signal. The control logic signal output to the RF amplifier controls the current RF front end to receive or send RF signals by controlling a switching switch connected to the RF amplifier. The control logic signal output to the frequency selection filter controls the filter that the current RF front end needs to work by controlling the switching switch inside the frequency selection filter, thereby controlling the frequency selection parameters of the RF front end. At the same time, the power supply end of the RF front end is connected to the preset cable, receives the power supply signal output by the power supply end of the remote control unit through the preset cable, and is connected to the PLL (Phase-Locked Loop (phase-locked loop) is connected to a preset cable, and receives the reference clock signal output by the reference clock module of the remote control unit through the preset cable to provide a clock signal for the mixer and other devices in the RF front end; at the same time, the mixer is connected to the filter in the remote control unit through the preset cable, and outputs the RF signal received by the RF front end to the AD / DA chip of the remote control unit through the preset cable, and the BB (Baseband, baseband circuit) and AD / DA chip of the remote control unit output the RF signal to be sent to the preset cable through the filter, and then the RF front end sends the RF signal; thus, the transmission of RF signals, control signals, power signals and clock signals is realized through the same preset cable, and the two-way transmission of RF signals and control signals can be effectively realized.

[0055] The present invention provides a remote control method for a radio frequency system, wherein a slave controller is provided at a radio frequency front end, and a master controller is provided at a remote control unit. After acquiring a control logic signal required by the radio frequency front end, the master controller of the remote control unit converts the control logic signal into a preset alternating current signal, and transmits the preset alternating current signal in series to the slave controller of the radio frequency front end through a preset cable, so as to realize a control process of the radio frequency front end, and the radio frequency signal is also transmitted through the preset cable. By converting the control logic signal into an alternating current signal, the control signal can be directly transmitted through the preset cable. Only a preset cable is provided between the radio frequency front end and the remote control unit, so as to simultaneously realize the transmission process of the control signal and the radio frequency signal in the remote control process of the radio frequency system, without providing too many cables, thereby reducing the weight and cost of the entire radio frequency system and avoiding the impact on the aircraft load.

[0056] Based on the above examples: Figure 3 , Figure 3 A schematic diagram of the structure of a control system of a radio frequency system provided by the present invention; please refer to Figure 4 , Figure 4 A schematic diagram of a preset transmission protocol provided by the present invention;

[0057] As an optional embodiment, the RF front end further includes a RF device, and before obtaining the control logic signal required by the RF front end, the method further includes:

[0058] Determine the target control logic of the RF devices in the RF front end;

[0059] The target control logic of the RF device is serialized based on a preset transmission protocol to generate a control logic signal required by the RF front end; the preset transmission protocol includes a start bit, a data bit and a stop bit, and the data bit is used to store the target control logic of the RF device.

[0060] It is not difficult to understand that after the main controller determines the target control logic of the RF device in the RF front end, it is necessary to first convert the target control logic into a serial signal so that it can be directly converted into a preset AC signal that can be transmitted serially. In this application, the process of serializing the target control logic of the RF device is completed by adding a preset transmission protocol for the signal in the main controller. The main controller first transmits the target control logic of the RF device to the waveform generation module in serial through the SPI interface, and then based on the preset transmission protocol, it is convenient for the waveform generation module to convert various logic data of the serial transmission. RF devices include RF amplifiers, frequency selection filters and other devices, which are devices that need to be controlled during the reception or transmission of RF signals, and can realize different working processes of the RF front end. The specific type and implementation method of the RF device are not specifically limited in this application. The specific setting method of the preset transmission protocol and the corresponding specific transmission protocol type are not specifically limited in this application, and can be adjusted and set according to the interface type set in the main controller in actual applications.

[0061] It should be noted that the start bit and the stop bit are set in the preset transmission protocol to clarify each data transmission process. The role of the start bit is to notify the start of a single data transmission, and the role of the stop bit is to notify the end of a single data transmission. At the same time, considering that the RF front end usually requires multiple control logics, multiple control logics can be arranged in series according to a preset order, that is, the control logic signal finally generated is a plurality of data arranged in sequence in series. Starting from the first data of the serial transmission, the data bits of each data are the target control logic of the first RF device, the target control logic of the second RF device, and so on, and the target control logic corresponding to each RF device is accurately identified on the basis of serial transmission. The data bit can also be used not only to store the target control logic, but also to store the address and target control logic of the RF device at the same time. The controlled RF device corresponding to the target control logic is directly determined by the address and of the RF device stored in the data bit, and the target control logic corresponding to each RF device can also be accurately identified on the basis of serial transmission.

[0062] Specifically, the preset transmission protocol can realize accurate identification of each target control logic and the corresponding RF device after serialization, clarify the correspondence between the RF device and the target control logic, and ensure accurate control of the RF device in the RF front end by the remote control unit.

[0063] As an optional embodiment, it also includes:

[0064] When the radio frequency system needs to transmit a signal, configuring the work enable signal of the radio frequency system to a first level state in advance for a first preset time period so as to trigger the step of obtaining a control logic signal required by the radio frequency front end;

[0065] When the signal transmission of the radio frequency system is finished, the work enable signal of the radio frequency system is configured to the second level state after a second preset time period.

[0066] It is not difficult to understand that the entire RF system only needs to work when it is necessary to send or receive RF signals. Therefore, the main controller will only perform the conversion and transmission process of the control logic signal when the RF system needs to transmit signals. Therefore, it is also possible to increase the configuration process of setting the work enable signal of the RF system so that the main controller in the RF system can confirm whether to trigger the program in real time according to the state of the work enable signal. The specific type and implementation method of the work enable signal are not specifically limited in this application. The work enable signal can be directly added to the preset transmission protocol of the transmission control logic signal to inform the main controller and the slave controller of the working state of the RF system.

[0067] As a specific embodiment, the specific implementation of the preset transmission protocol is as follows: Figure 4As shown, TXD represents the control logic signal received by the main controller, and LPF_PD is the work enable signal for controlling the transmission system. The main controller can be controlled to work or not based on this work enable signal. When LPF_PD is at a high level, it means that the RF system does not need to work. When LPF_PD is at a low level, it means that the RF system needs to work. The preset transmission protocol is designed based on the serial port protocol used for actual transmission. It is not necessary to define the meaning of each specific bit first, but only define the waveform sent and the ability to send continuously. Each bit is defined later according to the needs. The LPF_PD signal is output to the RF front end so that the relevant circuit can be turned off when the RF system does not need to work. This LPF_PD signal is revoked in advance when the RF system needs to work. The advance time is configured by the t0 parameter. After the signal transmission is completed, the relevant circuit can be turned off again after a period of time. Specifically, the waveform generation module and filter in the main controller need to be turned off, and the preprocessing module, decoding circuit and distribution circuit in the slave controller can also be turned off. The delay time t1 is configurable. The duration of the transmission bit is configurable, the baud rate is configurable, the preset transmission protocol is set to 1 bit start bit (START) + 8 bits of data (D0-D7) + 1 bit stop bit (STOP), without a check bit, the number of bytes sent continuously is configurable, and the content of the sent bytes is configurable to ensure that the preset transmission protocol has maximum flexibility. Frame N represents a single data, and T is the transmission time of a bit.

[0068] Specifically, the master controller and the slave controller may include multiple circuits to implement the entire process. By adding a work enable signal, the operation of each circuit in the master controller and the slave controller can be ensured according to the specific operation of the RF system. After the signal transmission is completed, some circuits are turned off to maintain a low-power standby state, thereby reducing the power consumption of the entire RF system.

[0069] Please refer to Figure 5 , Figure 5 A schematic diagram of a correspondence between a preset square wave signal and a digital signal provided by the present invention; as an optional embodiment, converting a control logic signal into a preset AC signal includes:

[0070] Convert the control logic signal into a corresponding preset square wave signal, when the control logic signal is 0, the preset square wave signal is a first square wave signal, when the control logic signal is 1, the preset square wave signal is a second square wave signal;

[0071] The preset square wave signal is filtered and converted into a preset sinusoidal signal.

[0072] It is not difficult to understand that in order to make the baud rate adjustable and avoid the DC component at the same time, a pulse coding method is used to realize the conversion process of the control logic signal. The main controller specifically includes an SPI interface, a waveform generating module and a filter. The waveform generating module can generate two different square waves corresponding to 0 signal encoding and 1 signal encoding respectively. The square wave generated by the waveform generating module is filtered by the filter and then converted into a sinusoidal signal for easy transmission. The filtering process is used to avoid the interference of the control signal on the radio frequency signal. The specific implementation method of the first square wave signal and the second square wave signal is not particularly limited in this application. Figure 5 As shown, bit1 and bit0 can be specifically distinguished by different periods of the square wave signal; the specific implementation method of the filtering process is not particularly limited in this application, and can be implemented by different types of filters such as active low-pass filters. The specific selection and parameter setting of the filter can be selected and set according to the specific frequency of the RF signal in actual application.

[0073] Specifically, by first converting the control logic signal, a digital signal, into a corresponding square wave signal, the distinction and regulation of the two control logic signals are realized in the form of pulses. At the same time, considering that both the control signal and the radio frequency signal are transmitted through a preset cable, a filtering process for the control signal in the form of a square wave is further set up to generate a preset AC signal corresponding to the control logic signal. This not only avoids interference, but also facilitates transmission, thereby improving the accuracy and reliability of the control signal transmission process.

[0074] As an optional embodiment, the radio frequency front end transmits and receives the radio frequency signal based on the preset AC signal, including:

[0075] The RF front end receives a preset sinusoidal signal and restores the preset sinusoidal signal to a control logic signal;

[0076] The restored control logic signal is distributed to the corresponding radio frequency device to transmit and receive the radio frequency signal.

[0077] It is not difficult to understand that after the preset sinusoidal signal corresponding to the control logic signal is transmitted to the slave controller at the receiving end through the preset cable, the slave controller will restore the corresponding control logic signal based on the preset sinusoidal signal, so as to send the control logic signal to each RF device, realize the control process of the RF device, and thus perform the required RF signal receiving and sending process. The specific process of restoring the preset sinusoidal signal to the control logic signal is the opposite process of the signal conversion process in the main controller, and can be set according to the specific implementation method of the main controller.

[0078] Specifically, the control process of the radio frequency device from the controller is implemented based on the control logic signal of the digital signal, so it is necessary to restore the preset sinusoidal signal to the control logic signal and then distribute it to realize the entire control process.

[0079] Please refer to Figure 6 , Figure 6 A schematic diagram of a processing flow of a slave controller provided by the present invention; as an optional embodiment, restoring a preset sinusoidal signal to a control logic signal includes:

[0080] Performing analog preprocessing on the preset sinusoidal signal to restore the preset sinusoidal signal to a restored signal in the form of a square wave;

[0081] The restored signal is decoded into the control logic signal based on the corresponding relationship between the preset square wave signal and the control logic signal.

[0082] It is not difficult to understand that the slave controller specifically includes a preprocessing module, a decoding circuit and a distribution circuit. The preprocessing module will first restore the preset AC signal to a square wave signal, and the decoding circuit will then restore the square wave signal to a control logic signal. The distribution circuit will distribute the restored control logic signals to the corresponding RF devices. The specific types and implementation methods of the preprocessing module, the decoding circuit and the distribution circuit are not particularly limited in this application; as a specific embodiment, the preprocessing module first performs DC isolation, amplification and other processing on the preset AC signal, and then transmits it to a 1-bit ADC circuit for judgment, thereby restoring it to a digital signal, and finally sending it to the digital circuit for extraction and solution to determine the final control logic signal. Furthermore, the working clock of the preprocessing module and the decoding circuit comes from the ring oscillator set on the slave controller chip, so that the data recovery process can be realized without using a clock.

[0083] Specifically, corresponding to the signal conversion process in the main controller, the slave controller also needs to first restore the preset sinusoidal signal to a square wave signal, and then restore it to the original control logic signal through the correspondence between the preset square wave signal and the digital logic. The whole process is the reverse process corresponding to the main controller, which can achieve effective recovery of the control logic signal.

[0084] Please refer to Figure 7 , Figure 7A structural schematic diagram of another RF system provided by the present invention; to solve the above-mentioned technical problems, the present invention also provides a RF system, including a remote control unit provided with a main controller and a RF front end provided with a slave controller, the first RF end of the RF front end is connected to the RF end of the remote control unit through a preset cable, the second RF end is connected to the RF antenna, and the slave controller is connected to the main controller through a preset cable; the main controller is used to implement the remote control method of the RF system as mentioned above.

[0085] It is not difficult to understand that the RF front end is usually directly connected to the RF signal to facilitate the reception or transmission process of the RF signal. Control systems are set in the RF front end and the remote control unit, and the control system in the remote control unit serves as the main controller, and the control system in the RF front end serves as the slave controller. The remote control unit effectively controls the RF front end through preset cables.

[0086] For an introduction to a radio frequency system provided by the present invention, please refer to the embodiment of the remote control method of the radio frequency system described above, and the present invention will not be repeated here.

[0087] As an optional embodiment, it also includes a first DC blocking capacitor C1 and a second DC blocking capacitor C2, the first end of the first DC blocking capacitor C1 is connected to the RF end of the remote control unit, and the second end is connected to the first end of the preset cable, the first end of the second DC blocking capacitor C2 is connected to the second end of the preset cable, and the second end is connected to the first RF end of the RF front end.

[0088] Considering that a power signal may need to be transmitted between the RF front end and the remote control unit, in order to avoid the influence of the power signal on the RF signal, it is necessary to further add a DC blocking capacitor at the front and rear ends of the preset cable to prevent the DC signal from causing an abnormal DC bias in the RF signal, thereby affecting the performance of the RF signal. The specific type and implementation method of the first DC blocking capacitor C1 and the second DC blocking capacitor C2 are not particularly limited in this application.

[0089] Please refer to Figure 8 , Figure 8 A schematic diagram of the structure of a remote control device of a radio frequency system provided by the present invention. To solve the above technical problems, the present invention also provides a remote control device of a radio frequency system, which is applied to a main controller in a remote control unit of the radio frequency system, the radio frequency system also includes a radio frequency front end provided with a slave controller, the radio frequency end of the radio frequency front end and the radio frequency end of the remote control unit are connected through a preset cable, and the slave controller and the main controller are connected through a preset cable; the remote control device of the radio frequency system includes:

[0090] A logic signal acquisition unit 11 is used to acquire the control logic signal required by the RF front end;

[0091] A signal conversion unit 12, used to convert the control logic signal into a preset AC signal;

[0092] The signal transmission unit 13 is used to output a preset AC signal to the RF front end in a serial transmission manner through a preset cable, so that the RF front end can transmit and receive RF signals based on the preset AC signal.

[0093] As an optional embodiment, the radio frequency front end further includes a radio frequency device, and further includes:

[0094] a target logic determination unit, configured to determine a target control logic of the radio frequency device in the radio frequency front end;

[0095] A serial transmission unit is used to serialize the target control logic of the radio frequency device based on a preset transmission protocol to generate a control logic signal required by the radio frequency front end; the preset transmission protocol includes a start bit, a data bit and a stop bit, and the data bit is used to store the target control logic of the radio frequency device.

[0096] As an optional embodiment, it also includes:

[0097] A first working configuration unit, configured to configure the working enable signal of the RF system to a first level state in advance for a first preset time when the RF system needs to transmit a signal, so as to trigger the step of obtaining the control logic signal required by the RF front end;

[0098] The second working configuration unit is used to configure the working enable signal of the radio frequency system to a second level state after a second preset time period when the signal transmission of the radio frequency system ends.

[0099] As an optional embodiment, the signal conversion unit 12 includes:

[0100] A signal conversion subunit, used to convert the control logic signal into a corresponding preset square wave signal, when the control logic signal is 0, the preset square wave signal is a first square wave signal, when the control logic signal is 1, the preset square wave signal is a second square wave signal;

[0101] The filtering unit is used to filter the preset square wave signal and convert it into a preset sinusoidal signal.

[0102] As an optional embodiment, the radio frequency front end includes:

[0103] A signal recovery unit, configured for the RF front end to receive the preset sinusoidal signal and recover the preset sinusoidal signal into a control logic signal;

[0104] The signal distribution unit is used to distribute the restored control logic signal to the corresponding radio frequency device to transmit and receive the radio frequency signal.

[0105] As an optional embodiment, the signal recovery unit includes:

[0106] A preprocessing unit, used for performing analog preprocessing on the preset sinusoidal signal to restore the preset sinusoidal signal to a restored signal in a square wave form;

[0107] A decoding unit is used to decode the restored signal into a control logic signal based on the corresponding relationship between the preset square wave signal and the control logic signal.

[0108] For an introduction to a remote control device for a radio frequency system provided by the present invention, please refer to the embodiment of the remote control method for the radio frequency system described above, and the present invention will not be repeated here.

[0109] In order to solve the above technical problems, the present invention also provides a computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, the steps of the above-mentioned method for controlling the remoteness of the radio frequency system are implemented.

[0110] It is understandable that if the method in the above embodiment is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on such an understanding, the technical solution of the present application is essentially or the part that contributes to the prior art or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium to execute all or part of the steps of the method described in each embodiment of the present application. Specifically, the computer-readable storage medium may include but is not limited to any type of disk, including a floppy disk, an optical disk, and a mobile hard disk, or any type of medium or device suitable for storing instructions, data, etc., and the present application does not make any special restrictions here.

[0111] For an introduction to a computer-readable storage medium provided by the present invention, please refer to the embodiment of the remote control method of the above-mentioned radio frequency system, and the present invention will not be repeated here.

[0112] In this specification, each embodiment is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the embodiments can be referred to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the method part.

[0113] It should also be noted that, in this specification, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "comprise", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the statement "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device including the element.

[0114] Professionals may further appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, computer software, or a combination of the two. In order to clearly illustrate the interchangeability of hardware and software, the composition and steps of each example have been generally described in the above description according to function. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professionals and technicians may use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of the present invention.

[0115] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A remote control method for a radio frequency system, characterized in that: A main controller used in a remote control unit of a radio frequency system, wherein the radio frequency system further comprises a radio frequency front end provided with a slave controller, a radio frequency end of the radio frequency front end and a radio frequency end of the remote control unit are connected via a preset cable, and the slave controller and the main controller are connected via the preset cable; The remote control method of the radio frequency system includes: Obtaining the control logic signal required by the radio frequency front end; Converting the control logic signal into a preset AC signal; The preset AC signal is output to the RF front end through the preset cable in a serial transmission manner, so that the RF front end transmits and receives a RF signal based on the preset AC signal.

2. The method for controlling the remote position of a radio frequency system according to claim 1, wherein: The radio frequency front end also includes a radio frequency device, and before obtaining the control logic signal required by the radio frequency front end, it also includes: Determining a target control logic of the radio frequency device in the radio frequency front end; The target control logic of the radio frequency device is serialized based on a preset transmission protocol to generate a control logic signal required by the radio frequency front end; the preset transmission protocol includes a start bit, a data bit and a stop bit, and the data bit is used to store the target control logic of the radio frequency device.

3. The method for controlling the remote position of a radio frequency system according to claim 2, wherein: Also includes: When the radio frequency system needs to transmit a signal, configuring the work enable signal of the radio frequency system to a first level state in advance for a first preset time length, so as to trigger the step of obtaining the control logic signal required by the radio frequency front end; When the signal transmission of the radio frequency system is finished, the operation enable signal of the radio frequency system is configured to a second level state after a second preset time period.

4. The method for controlling the remote position of a radio frequency system according to any one of claims 1 to 3, characterized in that: The step of converting the control logic signal into a preset AC signal comprises: Convert the control logic signal into a corresponding preset square wave signal, when the control logic signal is 0, the preset square wave signal is a first square wave signal, and when the control logic signal is 1, the preset square wave signal is a second square wave signal; The preset square wave signal is filtered to convert it into a preset sinusoidal signal.

5. The method for controlling the distance of a radio frequency system according to claim 4, characterized in that: The radio frequency front end transmits and receives radio frequency signals based on the preset AC signal, including: The RF front end receives the preset sinusoidal signal and restores the preset sinusoidal signal to a control logic signal; The restored control logic signal is distributed to the corresponding radio frequency device to transmit and receive the radio frequency signal.

6. The method for controlling the remote position of a radio frequency system according to claim 5, wherein: The step of restoring the preset sinusoidal signal to a control logic signal comprises: Performing analog preprocessing on the preset sinusoidal signal to restore the preset sinusoidal signal to a restored signal in a square wave form; The restored signal is decoded into a control logic signal based on the corresponding relationship between the preset square wave signal and the control logic signal.

7. A radio frequency system, characterized in that: It includes a remote control unit provided with a main controller and a radio frequency front end provided with a slave controller, wherein a first radio frequency end of the radio frequency front end is connected to a radio frequency end of the remote control unit via a preset cable, and a second radio frequency end is connected to a radio frequency antenna, and the slave controller is connected to the main controller via the preset cable; the main controller is used to implement the remote control method of the radio frequency system as described in any one of claims 1 to 4.

8. The radio frequency system according to claim 7, characterized in that: It also includes a first DC blocking capacitor and a second DC blocking capacitor, wherein the first end of the first DC blocking capacitor is connected to the RF end of the remote control unit, and the second end is connected to the first end of the preset cable, and the first end of the second DC blocking capacitor is connected to the second end of the preset cable, and the second end is connected to the first RF end of the RF front end.

9. A remote control device for a radio frequency system, characterized in that: A main controller used in a remote control unit of a radio frequency system, wherein the radio frequency system further comprises a radio frequency front end provided with a slave controller, a radio frequency end of the radio frequency front end and a radio frequency end of the remote control unit are connected via a preset cable, and the slave controller and the main controller are connected via the preset cable; The remote control device of the radio frequency system comprises: A logic signal acquisition unit, used to acquire the control logic signal required by the RF front end; A signal conversion unit, used for converting the control logic signal into a preset AC signal; The signal transmission unit is used to output the preset AC signal to the RF front end through the preset cable in a serial transmission manner, so that the RF front end can transmit and receive RF signals based on the preset AC signal.

10. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the steps of the remote control method of the radio frequency system according to any one of claims 1 to 6 are implemented.

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