Communication equipment and working method thereof

Abstract

The embodiment of the invention provides communication equipment and a working method of the communication equipment, which are used for solving the problem of power consumption waste caused by active signal receiving of a receiver in the prior art. The communication device includes communication circuitry including an antenna, an impedance matching network, a control circuit, a receiver, a protocol processor, and a signal processing circuit. The antenna is connected with the input end of the impedance matching network, the output end of the impedance matching network is respectively connected with the control circuit and the signal processing circuit, the output end of the signal processing circuit and the output end of the control circuit are respectively connected with the receiver, and the receiver is connected with the protocol processor; the antenna sends a received radio frequency signal to the control circuit and the signal processing circuit through the impedance matching network, and when the control circuit outputs a high level according to the radio frequency signal, the receiver supplies power, receives the radio frequency signal sent by the signal processing circuit and sends the radio frequency signal to the protocol processor, so that the protocol processor performs protocol processing on the radio frequency signal.

Description

Technical Field

[0001] The present application relates to the field of wireless communication technology, and in particular to a communication device and a working method of the communication device. Background Art

[0002] At present, in satellite communication equipment products, in order to establish communication with the payload / base station, its RF receiving channel is in a normally open state. Even if the terminal processor does not process the samples from the receiving channel, the RF channel is still in a functional working state, resulting in additional power consumption waste. In addition, the current receiver adopts a general RF front-end + transceiver architecture, which requires high-energy devices and modules, such as phase-locked loops, mixers, local oscillators, etc. These complex structures and high power consumption make it impossible for battery-powered terminals to meet the requirements of long standby time. Based on the above situation, when battery-powered terminals want to save power consumption of the RF front-end, they often rely on active reception, but cannot passively receive RF signals. Summary of the invention

[0003] The embodiments of the present application provide a communication device and a working method of the communication device, so as to solve the problem of power consumption waste caused by a receiver actively receiving signals in the prior art.

[0004] In a first aspect, an embodiment of the present application provides a communication device, including a communication circuit system, wherein the communication circuit system includes an antenna, an impedance matching network, a control circuit, a receiver, a protocol processor, and a signal processing circuit; wherein the antenna is connected to an input end of the impedance matching network, an output end of the impedance matching network is connected to the control circuit and the signal processing circuit respectively, an output end of the signal processing circuit is connected to the receiver, an output end of the control circuit is connected to the receiver, and the receiver is connected to the protocol processor;

[0005] The antenna sends the received RF signal to the control circuit and the signal processing circuit through the impedance matching network. When the control circuit outputs a high level according to the RF signal, the power supply voltage is provided to the receiver so that the receiver receives the RF signal sent by the signal processing circuit and sends it to the protocol processor, so that the protocol processor performs protocol processing on the RF signal.

[0006] In a possible implementation, the antenna is used to receive a radio frequency signal and send the radio frequency signal to the impedance matching network;

[0007] The impedance matching network is used to divide the radio frequency signal into two identical radio frequency signals, and send the radio frequency signals to the control circuit and the signal processing circuit respectively;

[0008] The control circuit is used to process the radio frequency signal to obtain a TTL level, and provide a power supply voltage to the receiver when the TTL level is a high level;

[0009] The signal processing circuit is used to process the radio frequency signal and send the processed radio frequency signal to the receiver;

[0010] The receiver is configured to receive the processed radio frequency signal sent by the signal processing circuit and send the processed radio frequency signal to the protocol processor when the control circuit provides the power supply voltage to the receiver;

[0011] The protocol processor is used to perform protocol processing on the received processed radio frequency signal.

[0012] In a possible implementation manner, the control circuit is further configured to send the TTL level to the protocol processor;

[0013] The protocol processor is further configured to receive the TTL level sent by the control circuit as a high level before performing protocol processing on the received processed radio frequency signal.

[0014] In a possible implementation, the control circuit includes a preprocessing subcircuit, a trigger, an analog switch, and a power supply;

[0015] The input end of the preprocessing subcircuit is connected to the output end of the impedance matching network, the output end of the preprocessing is connected to the first input end of the trigger, and the preprocessing subcircuit is used to perform detection and amplification processing on the received radio frequency signal;

[0016] The output end of the trigger is connected to the control end of the analog switch;

[0017] One end of the analog switch is connected to the output end of the power supply, and the other end of the analog switch is connected to the power supply end of the receiver.

[0018] In a possible implementation, the preprocessing subcircuit includes a detector and an amplifier;

[0019] The input end of the detector serves as the input end of the preprocessing subcircuit, and the output end of the detector is connected to the input end of the amplifier;

[0020] The output end of the amplifier serves as the output end of the preprocessing subcircuit.

[0021] In a possible implementation, the signal processing circuit includes a low noise amplifier, a bandpass filter and an adjustable attenuator;

[0022] The input end of the low noise amplifier serves as the input end of the signal processing circuit, and the output end of the low noise amplifier is connected to the input end of the band pass filter;

[0023] The output end of the bandpass filter is connected to the input end of the adjustable attenuator, and the output end of the adjustable attenuator serves as the output end of the signal processing circuit.

[0024] In a possible implementation, the amplifier is a dual-channel limiting amplifier, and a first output end of the dual-channel limiting amplifier serves as an output end of the preprocessing subcircuit;

[0025] The control circuit also includes a voltage conditioning module;

[0026] The second output end of the dual-channel limiting amplifier is connected to the input end of the voltage conditioning module, and the output end of the voltage conditioning module is connected to the control end of the adjustable attenuator;

[0027] The voltage conditioning module is used to condition the output signal of the dual-channel limiting amplifier to within the amplitude range of the control signal of the adjustable attenuator.

[0028] In a possible implementation, the output terminal of the protocol processor is connected to the second input terminal of the trigger;

[0029] When the protocol processing flow is completed, the protocol processor is further used to send a reset signal to the trigger so that the TTL level output by the trigger is a low level;

[0030] The analog switch is also used to control the power supply to stop providing the power supply voltage to the receiver when the received TTL level is a low level.

[0031] In a second aspect, an embodiment of the present application provides a working method of a communication device, which is applied to a terminal device as described in the first aspect and different implementations of the first aspect, and the method includes:

[0032] Receive a radio frequency signal, and send the radio frequency signal to a control circuit and a signal processing circuit respectively;

[0033] Processing the radio frequency signal through a control circuit to obtain a TTL level, and processing the radio frequency signal through a signal processing circuit to obtain a processed radio frequency signal;

[0034] When it is determined that the TTL level is a high level, the power supply is controlled to power the receiver so that the receiver sends the processed radio frequency signal sent by the received signal processing circuit to the protocol processor, and controls the protocol processor to perform protocol processing on the received processed radio frequency signal.

[0035] In a possible implementation, after the protocol processing flow is completed, the protocol processor is controlled to send a reset signal so that the power supply stops providing the power supply voltage to the receiver.

[0036] In one possible implementation, the method further includes: when it is determined that the protocol processing is completed, controlling the protocol processor to send a reset signal to the control circuit so that the TTL level output by the control circuit is a low level; when it is determined that the TTL level output by the control circuit is a low level, controlling the power supply to stop powering the receiver.

[0037] In a third aspect, an embodiment of the present application provides an execution device, including a memory and a processor;

[0038] A memory for storing program instructions;

[0039] The processor is used to obtain the program instructions in the memory and execute any step of the working method of the communication device described in the second aspect and different implementation modes according to the obtained program instructions.

[0040] In a fourth aspect, an embodiment of the present application provides a computer-readable storage medium, wherein the computer-readable storage medium includes computer instructions. When the computer instructions are executed by the computer, the steps of the working method of the communication device provided in the embodiment of the present application are implemented.

[0041] The beneficial effects of this application are as follows:

[0042] In this application, the received RF signal is divided into two paths through the communication circuit system, one path is sent to the original receiving channel, and the other path is used for processing to determine the corresponding TTL level, and then determine whether the power of the receiver is turned on according to the TTL level. In this application, the receiver power is turned on when the communication device receives the RF signal, and when the RF signal is not received, the receiver power is turned off, so that the power consumption of battery-type communication equipment is lower and the battery life is relatively extended. The front-stage AGC is not implemented by ADC / DAC and digital feedback, but directly uses the output of the voltage conditioning module for feedback, which reduces the pressure on the post-stage AGC algorithm. This receiving channel wake-up method can reduce the amount of data continuously captured and cached by the post-stage physical layer algorithm.

[0043] Other features and advantages of the present application will be described in the following description, and partly become apparent from the description, or be understood by practicing the present application. The purpose and other advantages of the present application can be realized and obtained by the structures specifically pointed out in the written description, claims, and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments 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 drawings can be obtained based on these drawings without paying creative work.

[0045] Figure 1 A hardware structure diagram of a communication device provided in an embodiment of the present application;

[0046] Figure 2 A schematic diagram of a working method flow of a communication device provided in an embodiment of the present application;

[0047] Figure 3 A data processing flow chart of a control circuit end provided in an embodiment of the present application;

[0048] Figure 4 A structural diagram of an execution device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0049] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0050] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for which protection is sought, but merely represents selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0051] It should be noted that relational terms such as "first" and "second" are used only 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 "include", "comprise" 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, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0052] At present, in satellite communication terminal products and some ground network communication terminal products, such as mobile communication terminals, Internet of Things terminals and other devices, in order to establish communication with the payload / base station, its RF receiving channel is in a normally open state. Even if the terminal processor does not process the samples from the receiving channel, the RF channel is still in a functional working state, resulting in additional power consumption waste. However, the receivers of current communication terminals adopt a general RF front-end + transceiver architecture, which requires high-energy-consuming devices and modules, such as phase-locked loops, mixers, local oscillators, etc. When the RF channel is in an open state for a long time, the above-mentioned high-energy-consuming devices and modules make it impossible for battery-powered terminals to meet long-term standby. In order to save power consumption of the RF front end, the above-mentioned battery-powered terminal mainly relies on active reception, but cannot passively receive signals.

[0053] In addition, in the field of measuring instruments, in order to test the radio frequency indicators and protocol compliance of wireless terminals, the comprehensive tester will interact with the terminal to be tested according to the standard protocol system used by the terminal, guide the terminal to enter multiple states or modes, and thus achieve the purpose of testing the terminal. This requires the receiving channel of the comprehensive tester to not only work continuously, but also to continue to collect data until the signal returned by the terminal to the comprehensive tester is captured by it. However, the above method will cause the amount of buffer pool BUFFER data collected by the receiving channel to be too large, making the capture algorithm more complicated, and also increasing the hardware overhead such as network port rate, hard disk read and write rate, etc. In addition, this method will also lead to increased power consumption, which has a greater impact on the standby time of portable measuring instruments.

[0054] Based on the above problems, an embodiment of the present application provides a communication device, which includes an antenna, an impedance matching network, a control circuit, a receiver, a protocol processor, and a signal processing circuit. In the present application, the received radio frequency signal is sent to the control circuit and the signal processing circuit respectively, and the radio frequency signal is processed by the control circuit to obtain a TTL level, and the radio frequency signal is processed by the signal processing circuit to obtain a processed radio frequency signal. Further, when it is determined that the TTL level is a high level, the power supply is controlled to power the receiver so that the receiver sends the processed radio frequency signal sent by the received signal processing circuit to the protocol processor, and controls the protocol processor to perform protocol processing on the received processed radio frequency signal. Through the above method, the low-power wake-up performance of the radio frequency receiving channel can be achieved. After receiving the radio frequency signal, the receiver can be activated in a shorter time, thereby reducing the system power consumption and reducing the subsequent algorithm processing pressure.

[0055] See also Figure 1 As shown, Figure 1The hardware architecture of the communication device provided in the embodiment of the present application is exemplarily shown. The communication device includes an antenna 10, an impedance matching network 20, a control circuit 30, a receiver 40, a protocol processor 50 and a signal processing circuit 60.

[0056] Among them, the antenna 10 is connected to the input end of the impedance matching network 20, the output end of the impedance matching network 20 is respectively connected to the control circuit 30 and the signal processing circuit 60, the output end of the signal processing circuit 60 is connected to the receiver 40, the output end of the control circuit 30 is connected to the receiver 40, and the receiver 40 is connected to the protocol processor 50.

[0057] In the present application, the antenna 10 sends the received RF signal to the control circuit 30 and the signal processing circuit 60 through the impedance matching network 20. When the control circuit 30 outputs a high level according to the RF signal, it provides a power supply voltage to the receiver 40 so that the receiver 40 receives the RF signal sent by the signal processing circuit 60 and sends it to the protocol processor 50, so that the protocol processor 50 performs protocol processing on the RF signal.

[0058] In some embodiments, the antenna 10 is used to receive radio frequency signals and send radio frequency signals to the impedance matching network;

[0059] An impedance matching network 20, used to send radio frequency signals to the control circuit and the signal processing circuit respectively;

[0060] The control circuit 30 is used to process the radio frequency signal to obtain a TTL level and provide a power supply voltage to the receiver 40 when the TTL level is high;

[0061] The signal processing circuit 60 is used to process the radio frequency signal and send the processed radio frequency signal to the receiver 40;

[0062] The receiver 40 is used to receive the processed radio frequency signal sent by the signal processing circuit 60 and send the processed radio frequency signal to the protocol processor 50 when the control circuit 30 provides the power supply voltage for the receiver 40;

[0063] The protocol processor 50 is used to perform protocol processing on the received processed radio frequency signal.

[0064] In some embodiments, the impedance matching network 20 can be implemented by a power divider. The impedance matching network 20 can divide the radio frequency signal received by the antenna 10 into two equal signals, which are input into the control circuit 30 and the signal processing circuit 60 respectively.

[0065] In some embodiments, the control circuit 30 is further configured to send a TTL level to the protocol processor 50. Before the protocol processor 50 performs protocol processing on the received processed RF signal, the TTL level sent by the receiving control circuit 30 is also configured to be a high level.

[0066] In some embodiments, the control circuit 30 includes a preprocessing subcircuit 31, a trigger 32, and a radio frequency power supply unit 300. The radio frequency power supply unit 300 includes an analog switch 33 and a power supply 34. The input end of the preprocessing subcircuit 31 is connected to the output end of the impedance matching network 20, and the output end of the preprocessing subcircuit 31 is connected to the first input end of the trigger 32. The preprocessing subcircuit 31 is used to perform detection and amplification processing on the received radio frequency signal. In some embodiments, the output end of the trigger 32 is connected to the control end of the analog switch 33, one end of the analog switch 33 is connected to the output end of the power supply 34, and the other end of the analog switch 33 is connected to the power supply end of the receiver 40.

[0067] In some embodiments, the preprocessing subcircuit 31 includes a detector 311 and an amplifier 312. The input end of the detector 311 serves as the input end of the preprocessing subcircuit 31, the output end of the detector 311 is connected to the input end of the amplifier 312; and the output end of the amplifier 312 serves as the output end of the preprocessing subcircuit 31.

[0068] In some embodiments, the signal processing circuit 60 includes a low noise amplifier 61, a bandpass filter 62, and an adjustable attenuator 63;

[0069] The input end of the low noise amplifier 61 is used as the input end of the signal processing circuit 60, and the output end of the low noise amplifier 61 is connected to the input end of the band pass filter 62;

[0070] The output end of the bandpass filter 62 is connected to the input end of the adjustable attenuator 63 , and the output end of the adjustable attenuator 63 serves as the output end of the signal processing circuit 60 .

[0071] In some embodiments, the amplifier 312 is a dual-channel limiting amplifier, and a first output terminal of the dual-channel limiting amplifier serves as an output terminal of the pre-processing sub-circuit 30 .

[0072] In some embodiments, the control circuit 30 further includes a voltage conditioning module 35 . The second output terminal of the dual-channel limiting amplifier is connected to the input terminal of the voltage conditioning module 35 , and the output terminal of the voltage conditioning module 35 is connected to the control terminal of the adjustable attenuator 63 .

[0073] In some embodiments, the voltage conditioning module 35 is used to condition the output signal of the amplifier 312 to within the amplitude range of the control signal of the adjustable attenuator 63. For example, the output voltage of the amplifier 312 is 2V, and the amplitude range of the control signal of the adjustable attenuator 63 is 4-6V. The voltage output by the amplifier 312 can be conditioned to 4-6V, and the conditioned voltage signal can be input into the control end of the adjustable attenuator 63.

[0074] In some embodiments, the voltage conditioning module 35 may be implemented in a variety of ways, and the present application does not specifically limit the specific structure of the voltage conditioning module 35 .

[0075] In some embodiments, the output terminal of the protocol processor 50 is connected to the second input terminal of the trigger 32. When the protocol processing flow is completed, the protocol processor 50 is further configured to send a reset signal to the trigger 32 so that the TTL level output by the trigger 32 is a low level;

[0076] The analog switch 33 is also used to control the power supply 34 to stop providing the power supply voltage to the receiver 40 when the received TTL level is a low level.

[0077] In some embodiments, a bandpass filter 70 is further included between the antenna 10 and the impedance matching network 20. The bandpass filter 70 is used to limit the transmission of the RF signal received by the antenna 10 and the RF signal within the set frequency band corresponding to the receiver 40 to the impedance matching network 20.

[0078] In some scenarios, the bandpass filter 70 can be implemented by a cavity filter.

[0079] See also Figure 2 As shown, Figure 2 An exemplary embodiment of the present invention provides a method for operating a communication device. Figure 1 The communication device shown is executed. The specific process is as follows:

[0080] 201, receiving a radio frequency signal, and sending the radio frequency signal to a control circuit and a signal processing circuit respectively.

[0081] In some embodiments, the receiver front-end circuit can limit the receiving frequency band of the radio frequency signal to a specified frequency band through a cavity bandpass filter, wherein the specified frequency band is a frequency band that the receiver can receive or process.

[0082] Furthermore, the RF signal can be divided into two paths through an impedance matching network, one path is sent to the control circuit, and the other path is sent to the signal processing circuit. The signal processing circuit can be understood as the original receiving channel. After the RF signal is input into the original receiving channel, the receiver front-end processing and AGC gain control can be performed.

[0083] 202 , the control circuit processes the radio frequency signal to obtain a TTL level, and the signal processing circuit processes the radio frequency signal to obtain a processed radio frequency signal.

[0084] In some embodiments, when the signal processing circuit receives the RF signal sent by the impedance matching network, it can be amplified by a low noise amplifier and filtered twice by a bandpass filter (such as a surface acoustic wave (SAW) filter) before being input into the adjustable attenuator.

[0085] In some scenarios, the adjustable attenuator adjusts the voltage parameters of the input RF signal to obtain a processed RF signal, and sends the processed RF signal to the receiver.

[0086] In some embodiments, after the control circuit receives the RF signal sent by the impedance matching network, the RF signal can be power detected and amplified by the processing subcircuit. Specifically, the RF signal can be power detected by the RMS detector, and then the detected signal can be amplified by the amplifier. Further, it can be transmitted to the trigger to output a standard TTL level.

[0087] 203, when it is determined that the TTL level is a high level, control the power supply to power the receiver, so that the receiver sends the processed radio frequency signal sent by the received signal processing circuit to the protocol processor, and control the protocol processor to perform protocol processing on the received processed radio frequency signal.

[0088] In some embodiments, the output of the dual-channel coincidence amplifier is a voltage signal, and when the voltage value is greater than the input threshold of the set trigger, the trigger can output a TTL high level. The TTL level output by the trigger is only set high after being triggered by the rising edge, and then remains at a high level unchanged, and will not be automatically reset to zero.

[0089] In some embodiments, the trigger sends TTL levels to the analog switch and the protocol processor, respectively.

[0090] In some scenarios, when the TTL level of the trigger output is determined to be high, the analog switch can open the power rail at a speed of nanoseconds, so that the power supply supplies power and enables the relevant period of the receiver. Then, the receiver sends the signal received from the adjustable attenuator to the protocol processor.

[0091] In some scenarios, when the TTL level of the trigger output is determined to be high, the protocol processor can be awakened. That is, after receiving the high level, the protocol processor receives the processed RF signal sent by the receiver and performs protocol processing on the processed RF signal.

[0092] In some embodiments, when the co-processor determines that the receiving process and data processing are completed, a reset signal can be sent to the trigger through the IO port, thereby changing the TTL level output by the trigger to a low level.

[0093] In some embodiments, when it is determined that the protocol processing is completed, the protocol processor is controlled to send a reset signal to the control circuit so that the TTL level output by the control circuit is low. Further, when it is determined that the TTL level output by the control circuit is low, the power supply is controlled to stop supplying power to the receiver, thereby powering off the receiver.

[0094] Through the above scheme, the receiver power of the communication device is turned on when the radio frequency signal is received, and the receiver power is turned off when no radio frequency signal is received, so as to achieve the purpose of saving power consumption, so that the power consumption of battery-type communication devices is lower and the battery life is relatively extended.

[0095] In some embodiments, the detector can realize the RF front-end AGC pre-stage gain control while completing the signal input monitoring. Specifically, the voltage conditioning module can be fed through another output path of the amplifier, and the voltage conditioning module works together with the adjustable attenuator to complete the comparison with the set reference voltage, thereby continuously adjusting the attenuation value of the adjustable attenuator.

[0096] In the embodiment of the present application, the front-stage AGC is not implemented by ADC / DAC and digital feedback, but directly uses the output of the voltage conditioning module for feedback, which reduces the pressure on the back-stage AGC algorithm. This receiving channel wake-up method can reduce the amount of data continuously captured and cached by the back-stage physical layer algorithm.

[0097] In some embodiments, after the RF signal is input to the control circuit, it is first detected by the detector. When the detector detects a small signal and amplifies the output DC, the signal is sent to the trigger to generate a TTL level and to the voltage conditioning module to feed back to the adjustable attenuator.

[0098] In some scenarios, when the TTL level is high level 1, the receiver is powered on and working, the protocol processor receives the received signal as input, and processes the data according to the protocol, that is, executes the signal receiving process in the protocol (such as synchronization, capture, establishing random access request, etc.). Then, when the protocol processor completes the processing, it sends a reset indication to the trigger, cuts off the power supply to the RF front-end circuit, and waits for the next detector power detection signal to arrive.

[0099] In some scenarios, when the TTL level is low level 0, the receiver is in standby mode, such as Figure 3 shown.

[0100] Based on the same technical concept, see Figure 4 As shown, the embodiment of the present application provides an execution device 400, which can execute any step in the working method of the above communication device. To avoid repetition, it is not repeated here. The device 400 includes a memory 401 and a processor 402.

[0101] The memory 401 is used to store program instructions;

[0102] The processor 402 is used to call the program instructions stored in the memory and execute each step of the working method of the above communication device according to the obtained program.

[0103] In the embodiment of the present application, the processor 402 may be a general-purpose processor, a digital signal processor, an application-specific integrated circuit, a field programmable gate array or other programmable logic device, a discrete gate or transistor logic device, or a discrete hardware component, and may implement or execute the methods, steps, and logic block diagrams disclosed in the embodiment of the present application. The general-purpose processor may be a microprocessor or any conventional processor, etc. The steps of the method disclosed in the embodiment of the present application may be directly embodied as being executed by a hardware processor, or may be executed by a combination of hardware and software modules in the processor.

[0104] Memory 401, as a non-volatile computer-readable storage medium, can be used to store non-volatile software programs, non-volatile computer executable programs and modules. Memory 401 may include at least one type of storage medium, such as flash memory, hard disk, multimedia card, card-type memory, random access memory (Random Access Memory, RAM), static random access memory (Static Random Access Memory, SRAM), programmable read-only memory (Programmable Read Only Memory, PROM), read-only memory (Read Only Memory, ROM), electrically erasable programmable read-only memory (Electrically Erasable Programmable Read-Only Memory, EEPROM), magnetic storage, disk, optical disk, etc. Memory 401 is any other medium that can be used to carry or store a desired program code in the form of an instruction or data structure and can be accessed by a computer, but is not limited thereto. The memory 401 in the embodiment of the present application can also be a circuit or any other device that can realize a storage function, for storing program instructions and / or data.

[0105] Based on the same technical concept, an embodiment of the present application provides a computer-readable storage medium, which stores computer instructions. When the computer instructions are executed on a computer, the computer executes each step of the working method of the above-mentioned communication device.

[0106] Those skilled in the art will appreciate that the embodiments of the present application may be provided as methods, systems, or computer program products. Therefore, the present application may adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment in combination with software and hardware. Moreover, the present application may adopt the form of a computer program product implemented in one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) that include computer-usable program code.

[0107] The present application is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the present application. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of the processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0108] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0109] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0110] Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to include these modifications and variations.

Claims

1. A communication device, characterized in that: including a communication circuit system, the communication circuit system including an antenna, an impedance matching network, a control circuit, a receiver, a protocol processor, and a signal processing circuit; The antenna is connected to the input end of the impedance matching network, the output end of the impedance matching network is connected to the control circuit and the signal processing circuit respectively, the output end of the signal processing circuit is connected to the receiver, the output end of the control circuit is connected to the receiver, and the receiver is connected to the protocol processor; The antenna sends the received RF signal to the control circuit and the signal processing circuit through the impedance matching network. When the control circuit outputs a high level according to the RF signal, the power supply voltage is provided to the receiver. The receiver receives the RF signal sent by the signal processing circuit and sends it to the protocol processor, so that the protocol processor performs protocol processing on the RF signal.

2. The communication device according to claim 1, characterized in that The antenna is used to receive a radio frequency signal and send the radio frequency signal to the impedance matching network; The impedance matching network is used to divide the radio frequency signal into two identical radio frequency signals, and send the radio frequency signals to the control circuit and the signal processing circuit respectively; The control circuit is used to process the radio frequency signal to obtain a TTL level, and provide a power supply voltage to the receiver when the TTL level is a high level; The signal processing circuit is used to process the radio frequency signal and send the processed radio frequency signal to the receiver; The receiver is configured to receive the processed radio frequency signal sent by the signal processing circuit and send the processed radio frequency signal to the protocol processor when the control circuit provides the power supply voltage to the receiver; The protocol processor is used to perform protocol processing on the received processed radio frequency signal.

3. The communication device according to claim 1, characterized in that The control circuit is further used to send the TTL level to the protocol processor; The protocol processor is further configured to receive the TTL level sent by the control circuit as a high level before performing protocol processing on the received processed radio frequency signal.

4. The communication device according to claim 3, characterized in that The control circuit includes a preprocessing subcircuit, a trigger, an analog switch and a power supply; The input end of the preprocessing subcircuit is connected to the output end of the impedance matching network, the output end of the preprocessing subcircuit is connected to the first input end of the trigger, and the preprocessing subcircuit is used to perform detection and amplification processing on the received radio frequency signal; The output end of the trigger is connected to the control end of the analog switch; One end of the analog switch is connected to the output end of the power supply, and the other end of the analog switch is connected to the power supply end of the receiver.

5. The communication device according to claim 4, characterized in that The pre-processing sub-circuit includes a detector and an amplifier; The input end of the detector serves as the input end of the preprocessing subcircuit, and the output end of the detector is connected to the input end of the amplifier; The output end of the amplifier serves as the output end of the preprocessing subcircuit.

6. The communication device according to claim 5, characterized in that The signal processing circuit includes a low noise amplifier, a bandpass filter and an adjustable attenuator; The input end of the low noise amplifier serves as the input end of the signal processing circuit, and the output end of the low noise amplifier is connected to the input end of the band pass filter; The output end of the bandpass filter is connected to the input end of the adjustable attenuator, and the output end of the adjustable attenuator serves as the output end of the signal processing circuit.

7. The communication device according to claim 6, characterized in that The amplifier is a dual-channel limiting amplifier, and the first output end of the dual-channel limiting amplifier serves as the output end of the preprocessing subcircuit; The control circuit also includes a voltage conditioning module; The second output end of the dual-channel limiting amplifier is connected to the input end of the voltage conditioning module, and the output end of the voltage conditioning module is connected to the control end of the adjustable attenuator; The voltage conditioning module is used to condition the output signal of the dual-channel limiting amplifier to within the amplitude range of the control signal of the adjustable attenuator.

8. The communication device according to any one of claims 4 to 7, characterized in that: The output terminal of the protocol processor is connected to the second input terminal of the trigger; When the protocol processing flow is completed, the protocol processor is further used to send a reset signal to the trigger so that the TTL level output by the trigger is a low level; The analog switch is also used to control the power supply to stop providing the power supply voltage to the receiver when the received TTL level is a low level.

9. A working method of a communication device, characterized in that: Applied to the communication device according to any one of claims 1 to 7, the method comprises: Receive a radio frequency signal, and send the radio frequency signal to a control circuit and a signal processing circuit respectively; Processing the radio frequency signal through a control circuit to obtain a TTL level, and processing the radio frequency signal through a signal processing circuit to obtain a processed radio frequency signal; When it is determined that the TTL level is a high level, the power supply is controlled to power the receiver so that the receiver sends the processed radio frequency signal sent by the received signal processing circuit to the protocol processor, and controls the protocol processor to perform protocol processing on the received processed radio frequency signal.

10. The method according to claim 9, characterized in that The method further comprises: When it is determined that the protocol processing is completed, controlling the protocol processor to send a reset signal to the control circuit so that the TTL level output by the control circuit is a low level; When it is determined that the TTL level output by the control circuit is a low level, the power supply is controlled to stop supplying power to the receiver.

11. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores computer instructions, and when the computer instructions are executed by the computer, the method according to claim 9 or 10 is performed.

Images