Low-power-consumption analog signal direct modulation microsystem and method

Abstract

The invention provides a low-power-consumption analog signal direct modulation microsystem and method which can be applied to the technical field of signal modulation. The system comprises: an information source module configured to obtain an external signal in a predetermined time period and generate an initial analog signal according to the external signal; the filter circuit module is electrically connected with the information source module and is configured to filter interference signals in the initial analog signals to obtain intermediate analog signals; the matching circuit module is electrically connected with the filter circuit module and is configured to adjust the amplitude and the frequency of the intermediate analog signal based on the target amplitude and the target frequency to obtain a matching signal; and the oscillation module is electrically connected with the matching circuit module and is configured to generate and output a target frequency modulation signal according to the amplitude change and the frequency change of the matching signal in the preset time period.

Description

Technical Field

[0001] The present disclosure relates to the technical field of signal modulation, and more specifically, to a low-power analog signal direct modulation microsystem and method. Background Art

[0002] Signal modulation is the process or processing method of changing certain characteristics of a waveform according to another waveform or signal. With the rapid development of emerging applications such as the Internet of Things, portable devices and micro sensors, higher requirements are placed on low power consumption, miniaturization and high integration of signal modulation systems. Summary of the invention

[0003] In view of this, the present disclosure provides a low-power analog signal direct modulation microsystem and method.

[0004] One aspect of the present disclosure provides a low-power analog signal direct modulation microsystem, comprising:

[0005] A signal source module, configured to obtain an external signal of a predetermined period and generate an initial analog signal according to the external signal;

[0006] A filter circuit module, electrically connected to the signal source module, configured to filter out interference signals in the initial analog signal to obtain an intermediate analog signal;

[0007] A matching circuit module, electrically connected to the filter circuit module, configured to adjust the amplitude and frequency of the intermediate analog signal based on a target amplitude and a target frequency to obtain a matching signal;

[0008] The oscillation module is electrically connected to the matching circuit module and is configured to generate and output a target frequency modulation signal according to the amplitude change and frequency change of the matching signal in the predetermined time period.

[0009] According to an embodiment of the present disclosure, in the case where the initial analog signal is voltage-valid, the matching signal is a voltage-valid signal;

[0010] In the case where the initial analog signal is current valid, the matching signal is a current valid signal;

[0011] The oscillation module is further configured to generate and output the target frequency modulation signal according to the amplitude change and frequency change of the voltage effective signal or the current effective signal.

[0012] According to an embodiment of the present disclosure, the matching circuit module includes: a first resistor, a second resistor and a first capacitor, the first resistor is connected in parallel with the first capacitor, the first end of the first resistor is connected to the filter circuit module, the second end of the first resistor is connected to the oscillation module, the first end of the first capacitor is connected to the filter circuit module, the second end of the first capacitor is connected to the oscillation module, the first end of the second resistor is connected to the second end of the first resistor, and the second end of the second resistor is grounded.

[0013] According to an embodiment of the present disclosure, the matching circuit module is configured to adjust the amplitude and frequency of the intermediate analog signal by modifying the resistance value of the first resistor, the resistance value of the second resistor and the capacitance value of the first capacitor based on the target amplitude and the target frequency to obtain the matching signal.

[0014] According to an embodiment of the present disclosure, the matching circuit module includes: a third resistor and a second capacitor, the third resistor is connected in parallel with the second capacitor, the first end of the third resistor is connected to the filter circuit module, the second end of the third resistor is connected to the oscillation module, the first end of the second capacitor is connected to the filter circuit module, and the second end of the second capacitor is connected to the oscillation module.

[0015] According to an embodiment of the present disclosure, the matching circuit module is configured to adjust the amplitude and frequency of the intermediate analog signal by modifying the resistance of the third resistor and the capacitance of the second capacitor based on the target amplitude and the target frequency to obtain the matching signal.

[0016] According to an embodiment of the present disclosure, when the matching signal is the voltage effective signal, the oscillation module is a voltage controlled oscillation module, and when the matching signal is the current effective signal, the oscillation module is a current controlled oscillation module.

[0017] According to an embodiment of the present disclosure, the filtering circuit module includes a third capacitor, a first end of the third capacitor is connected to the signal source module, and a second end of the third capacitor is connected to the matching circuit module.

[0018] According to an embodiment of the present disclosure, the frequency and amplitude of the target frequency modulation signal are the same as the frequency and amplitude of the matching signal.

[0019] Another aspect of the present disclosure provides a low-power analog signal direct modulation method, comprising:

[0020] Using the signal source module to obtain an external signal of a predetermined period of time and generate an initial analog signal according to the external signal;

[0021] Using a filter circuit module to filter out interference signals in the initial analog signal to obtain an intermediate analog signal, wherein the filter circuit module is electrically connected to the signal source module;

[0022] Using a matching circuit module to adjust the amplitude and frequency of the intermediate analog signal based on a target amplitude and a target frequency to obtain a matching signal, wherein the matching circuit module is electrically connected to the filter circuit module;

[0023] An oscillation module is used to generate and output a target frequency modulation signal according to the amplitude change and frequency change of the matching signal in the predetermined time period, wherein the oscillation module is electrically connected to the matching circuit module.

[0024] Another aspect of the present disclosure provides an electronic device, comprising:

[0025] one or more processors;

[0026] a memory for storing one or more programs,

[0027] When the one or more programs are executed by the one or more processors, the one or more processors implement the method as described above.

[0028] Another aspect of the present disclosure provides a computer-readable storage medium storing computer-executable instructions, which are used to implement the above method when executed.

[0029] Another aspect of the present disclosure provides a computer program product, which includes computer executable instructions, and when the instructions are executed, are used to implement the method as described above.

[0030] According to the embodiments of the present disclosure, the low-power analog signal direct modulation microsystem of the embodiments of the present disclosure directly modulates the external signal, does not require additional complex structures such as amplifiers, phase detectors or loop filters, and does not require digital-to-analog conversion in digital systems, meeting the low power consumption requirements of the microsystem. And through the processing of the signal source module, the filter circuit module, the matching circuit module and the oscillation module, efficient direct modulation of the external signal can be achieved, which has the advantages of low power consumption, simple structure, and applicability to miniaturized devices. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The above and other objects, features and advantages of the present disclosure will become more apparent through the following description of the embodiments of the present disclosure with reference to the accompanying drawings, in which:

[0032] Figure 1 Schematically shows a block diagram of a low-power analog signal direct modulation microsystem according to an embodiment of the present disclosure;

[0033] Figure 2 Schematically shows a circuit diagram of a low-power analog signal direct modulation microsystem according to an embodiment of the present disclosure when the initial analog signal is voltage-effective;

[0034] Figure 3 Schematically shows a schematic diagram of the relationship between the input signal and the output signal of a voltage-controlled oscillation module according to an embodiment of the present disclosure;

[0035] Figure 4 Schematically shows a signal diagram of an external signal and a target frequency modulation signal according to an embodiment of the present disclosure;

[0036] Figure 5 Schematically shows a circuit diagram of a low-power analog signal direct modulation microsystem according to an embodiment of the present disclosure when the initial analog signal is current-effective;

[0037] Figure 6 Schematically shows a flowchart of a low-power analog signal direct modulation method according to an embodiment of the present disclosure; and

[0038] Figure 7 Schematically shows a block diagram of an electronic device suitable for implementing the low-power analog signal direct modulation method described above according to an embodiment of the present disclosure. Detailed implementation manners

[0039] Hereinafter, embodiments of the present disclosure will be described with reference to the accompanying drawings. However, it should be understood that these descriptions are merely exemplary and are not intended to limit the scope of the present disclosure. In the following detailed description, for the sake of explanation, many specific details are set forth to provide a thorough understanding of the embodiments of the present disclosure. However, obviously, one or more embodiments can also be implemented without these specific details. In addition, in the following description, descriptions of well-known structures and technologies are omitted to avoid unnecessarily obscuring the concepts of the present disclosure.

[0040] The terms used herein are merely for describing specific embodiments and are not intended to limit the present disclosure. The terms "including", "comprising", etc. used herein indicate the presence of the described features, steps, operations, and / or components, but do not exclude the presence or addition of one or more other features, steps, operations, or components.

[0041] All terms used herein (including technical and scientific terms) have the meanings commonly understood by those skilled in the art, unless otherwise defined. It should be noted that the terms used herein should be interpreted as having a meaning consistent with the context of this specification and should not be interpreted in an idealized or overly rigid manner.

[0042] When using expressions such as "at least one of A, B, and C, etc.", they should generally be interpreted according to the meaning of the expression commonly understood by those skilled in the art (for example, "a system having at least one of A, B, and C" should include but is not limited to a system having A alone, B alone, C alone, A and B, A and C, B and C, and / or A, B, C, etc.).

[0043] In the embodiments of the present disclosure, the collection, updating, analysis, processing, use, transmission, provision, disclosure, storage, etc. of the data involved (for example, including but not limited to user personal information) are in compliance with the provisions of relevant laws and regulations, are used for legitimate purposes, and do not violate public order and good morals. In particular, necessary measures are taken for user personal information to prevent illegal access to user personal information data and maintain the security of user personal information and network security.

[0044] In the embodiments of the present disclosure, the user's authorization or consent is obtained before obtaining or collecting the user's personal information.

[0045] The signal modulation system in the related art usually relies on a complex feedback control mechanism. For example, the modulation circuit based on the phase-locked loop includes multiple analog components such as a crystal oscillator, a phase detector and a loop filter. A stable reference frequency signal is generated by a crystal oscillator. The phase detector compares the phase of the reference signal with the output signal of the voltage-controlled oscillator. The output phase difference signal is processed by the loop filter and fed back to the voltage-controlled oscillator to ensure that the output signal frequency is synchronized with the reference frequency. At the same time, the modulation signal is superimposed on the feedback signal through the adder to modulate the output frequency of the voltage-controlled oscillator to generate a frequency modulation signal. The entire system ensures the stability of the output frequency and the modulation accuracy through the feedback mechanism of the phase-locked loop. Although the signal system in the related art can provide high frequency stability, it is not suitable for low-power and volume-limited scenarios due to its complex hardware structure, high power consumption and large physical space.

[0046] Although digital modulation systems have high modulation flexibility, they cannot directly modulate signals. Before modulation, they usually need to perform digital-to-analog conversion (DAC) on the signal source to convert the digital signal into an analog signal before modulation. This process will increase additional power consumption and system complexity, and may also introduce signal delays and accuracy loss.

[0047] In view of this, an embodiment of the present disclosure provides a low-power analog signal direct modulation microsystem, including: a signal source module, configured to obtain an external signal in a predetermined time period and generate an initial analog signal according to the external signal; a filtering circuit module, electrically connected to the signal source module, configured to filter out interference signals in the initial analog signal to obtain an intermediate analog signal; a matching circuit module, electrically connected to the filtering circuit module, configured to adjust the amplitude and frequency of the intermediate analog signal based on a target amplitude and a target frequency to obtain a matching signal; an oscillation module, electrically connected to the matching circuit module, configured to generate and output a target frequency modulation signal according to the amplitude change and frequency change of the matching signal in a predetermined time period.

[0048] Figure 1 The block diagram of a low-power analog signal direct modulation microsystem according to an embodiment of the present disclosure is schematically shown.

[0049] like Figure 1 As shown, the low-power analog signal direct modulation microsystem 100 includes a signal source module 110 , a filter circuit module 120 , a matching circuit module 130 and an oscillation module 140 .

[0050] The signal source module 110 is configured to obtain an external signal of a predetermined period and generate an initial analog signal according to the external signal.

[0051] The filter circuit module 120 is electrically connected to the signal source module 110 and configured to filter out interference signals in the initial analog signal to obtain an intermediate analog signal;

[0052] The matching circuit module 130 is electrically connected to the filter circuit module 120 and is configured to adjust the amplitude and frequency of the intermediate analog signal based on the target amplitude and the target frequency to obtain a matching signal;

[0053] The oscillation module 140 is electrically connected to the matching circuit module 130 and is configured to generate and output a target frequency modulation signal according to the amplitude change and frequency change of the matching signal in a predetermined period of time.

[0054] According to an embodiment of the present disclosure, the signal source module may be a sensor for collecting analog signals such as a pressure sensor, a temperature sensor, and an audio sensor, which collects external signals and generates an initial analog signal. The initial analog signal may be a signal with low-frequency characteristics. The initial analog signal may contain data information to be modulated, for example, captured voice information, real-time pressure change information, etc., and the initial analog signal may be provided as an input signal to the filter circuit module.

[0055] According to an embodiment of the present disclosure, the filtering circuit module can filter out interference signals in the initial analog signal to obtain an intermediate analog signal. The interference signal may be a DC component and high-frequency noise in the initial analog signal, thereby ensuring the purity and stability of the obtained intermediate analog signal.

[0056] According to an embodiment of the present disclosure, the matching circuit module can be combined with a subsequent control oscillator to adjust the amplitude and frequency of the intermediate analog signal based on the target amplitude and target frequency to obtain a matching signal, so as to ensure that the target frequency modulation signal generated by the oscillation module according to the matching signal reaches the target frequency and target amplitude, thereby improving the modulation accuracy. The target amplitude and target frequency can be preset.

[0057] According to the embodiments of the present disclosure, the low-power analog signal direct modulation microsystem of the embodiments of the present disclosure directly modulates the external signal, does not require additional complex structures such as amplifiers, phase detectors or loop filters, and does not require digital-to-analog conversion in digital systems, meeting the low power consumption requirements of the microsystem. And through the processing of the signal source module, the filter circuit module, the matching circuit module and the oscillation module, efficient direct modulation of the external signal can be achieved, which has the advantages of low power consumption, simple structure, and applicability to miniaturized devices.

[0058] According to an embodiment of the present disclosure, when the initial analog signal is voltage-valid, the matching signal is a voltage-valid signal; when the initial analog signal is current-valid, the matching signal is a current-valid signal; the oscillation module can also be configured to: generate and output a target frequency modulation signal based on the amplitude change and frequency change of the voltage-valid signal or the current-valid signal.

[0059] According to an embodiment of the present disclosure, when the matching signal is a voltage effective signal, the oscillation module is a voltage controlled oscillation module, and when the matching signal is a current effective signal, the oscillation module is a current controlled oscillation module.

[0060] Figure 2 The circuit diagram of the low-power analog signal direct modulation microsystem according to an embodiment of the present disclosure is schematically shown when the initial analog signal is voltage-valid.

[0061] like Figure 2 As shown, the low-power analog signal direct modulation microsystem 200 includes a signal source module 210, a filter circuit module 220, a matching circuit module 230 and a voltage-controlled oscillator module 240. The matching circuit module 230 includes: a first resistor R1, a second resistor R2 and a first capacitor C1, the first resistor R1 is connected in parallel with the first capacitor C1, the first end of the first resistor R1 is connected to the filter circuit module 220, the second end of the first resistor R1 is connected to the voltage-controlled oscillator module 240, the first end of the first capacitor C1 is connected to the filter circuit module, the second end of the first capacitor C1 is connected to the voltage-controlled oscillator module 240, the first end of the second resistor R2 is connected to the second end of the first resistor R1, and the second end of the second resistor R2 is grounded.

[0062] According to an embodiment of the present disclosure, the matching circuit module 230 is configured to adjust the amplitude and frequency of the intermediate analog signal by modifying the resistance of the first resistor R1, the resistance of the second resistor R2 and the capacitance of the first capacitor C1 based on the target amplitude and target frequency to obtain a matching signal.

[0063] According to an embodiment of the present disclosure, the filter circuit module 220 includes a third capacitor C3 , a first end of the third capacitor C3 is connected to the signal source module 210 , and a second end of the third capacitor C3 is connected to the matching circuit module 230 .

[0064] According to an embodiment of the present disclosure, Figure 2 The Zhongxin source module 210 may include a microphone, a pressure sensor, a temperature sensor, etc., for collecting low-frequency external signals carrying information and generating an initial analog signal. The initial analog signal is input to the filter circuit module, and the filter circuit module filters out interference signals in the initial analog signal. The second resistor in the matching circuit module is a pull-down resistor.

[0065] The matching circuit module adjusts the amplitude and frequency of the intermediate analog signal by modifying the resistance value of the first resistor, the resistance value of the second resistor and the capacitance value of the first capacitor to obtain a matching signal, thereby making the frequency and amplitude of the target frequency modulation signal output by the voltage-controlled oscillation module reach the required expected target value.

[0066] The matching signal processed by the filter circuit module and the matching circuit module is directly input into the voltage controlled oscillation module as a control voltage. The voltage controlled oscillation module generates a target frequency modulation signal according to the amplitude change and frequency change of the matching signal in a predetermined period. The target frequency modulation signal can be a square wave oscillation signal.

[0067] According to the embodiments of the present disclosure, the entire low-power analog signal direct modulation microsystem can be implemented on a PCB board, and the system only needs four core components: a signal source module, a filter circuit module, a matching circuit module, and an oscillation module, and the filter module is implemented only by a capacitor, and the matching circuit module is implemented only by two resistors and a capacitor, and all modules of the system realize signal transmission through wiring. In the related art, the modulation system realized by a phase detector, a loop filter, etc. requires a large number of devices. Therefore, the design of the low-power analog signal direct modulation microsystem of the embodiment of the present disclosure simplifies the circuit structure, can achieve low power consumption, and because the external signal is directly modulated, no additional signal amplification or complex processing circuit is required, so it is suitable for application in low-power systems.

[0068] Figure 3 The figure schematically shows the relationship between the input signal and the output signal of the voltage-controlled oscillation module according to the embodiment of the present disclosure.

[0069] like Figure 3As shown, the input signal of the voltage controlled oscillator module With output signal Angular frequency The relationship is approximately linear. The input signal is In the case of The angular frequency is , the input signal is In the case of The angular frequency is Let the slope be .

[0070] Output signal of voltage controlled oscillator module With input signal Follow the following relationship:

[0071] (1)

[0072] (2)

[0073] (3)

[0074] As shown in the above formula, is the target FM signal, It represents the input signal of the voltage-controlled oscillator module in a predetermined period of time, that is, the matching signal. and Fixed parameters generated by the voltage controlled oscillator module.

[0075] Figure 4 A signal diagram of an external signal and a target frequency modulation signal according to an embodiment of the present disclosure is schematically shown.

[0076] like Figure 4 As shown, (a) is the initial analog signal generated by the signal source module, which is a typical analog signal waveform in which the voltage changes with time, that is, the initial analog signal is voltage-effective. The initial analog signal is generated by the external signal obtained by the signal source module, and the initial analog signal is output as the target frequency modulation signal through the filter circuit module, the matching circuit module and the voltage-controlled oscillation module. Figure 4 (b) is the target FM signal, which is in the form of a square wave signal, corresponding to the modulation result of the external signal. The frequency of the target FM signal changes with the amplitude of the initial analog signal, forming an intermediate frequency square wave of different densities, whose frequency reflects the voltage change of the input analog signal. The frequency and amplitude of the target FM signal are the same as those of the matching signal.

[0077] According to the embodiments of the present disclosure, compared with the modulation system based on the phase-locked loop, the low-power analog signal direct modulation microsystem provided by the present disclosure does not require additional crystal oscillators, phase detectors and loop filters, which greatly simplifies the system structure. Only four core components, namely the source module, the filter circuit module, the matching circuit module and the oscillation module, are required, which greatly reduces the power consumption of the system and is suitable for use in micro, volume-limited and energy-limited low-power systems. Furthermore, since the signal modulation microsystem is compactly designed, the system is small in size and light in weight, it is suitable for space-limited micro systems, such as Internet of Things devices, sensor networks, etc.

[0078] The low-power analog signal direct modulation microsystem provided by the present disclosure can directly perform frequency modulation on external signals, avoiding complex signal processing steps. The entire modulation process responds quickly, has high modulation efficiency, can timely reflect changes in input signals, and output modulated frequency signals with high accuracy.

[0079] Figure 5 The circuit diagram of the low-power analog signal direct modulation microsystem according to an embodiment of the present disclosure is schematically shown when the initial analog signal is current-effective.

[0080] like Figure 5 As shown, the low-power analog signal direct modulation microsystem 500 includes a signal source module 510, a filter circuit module 520, a matching circuit module 530 and a current-controlled oscillation module 540. The matching circuit module includes: a third resistor R3 and a second capacitor C2, the third resistor R3 is connected in parallel with the second capacitor C2, the first end of the third resistor R3 is connected to the filter circuit module 520, the second end of the third resistor R3 is connected to the current-controlled oscillation module 540, the first end of the second capacitor C2 is connected to the filter circuit module, and the second end of the second capacitor C2 is connected to the current-controlled oscillation module 540. The matching circuit module 530 is configured to adjust the amplitude and frequency of the intermediate analog signal by modifying the resistance value of the third resistor R3 and the capacitance value of the second capacitor C2 based on the target amplitude and target frequency to obtain a matching signal.

[0081] According to an embodiment of the present disclosure, Figure 5 The Zhongxin source module may include a microphone, a pressure sensor, a temperature sensor, etc., which are used to collect low-frequency external signals carrying information and generate an initial analog signal. The initial analog signal is input to the filter circuit module, and the filter circuit module filters out interference signals in the initial analog signal. The second resistor in the matching circuit module is a pull-down resistor.

[0082] The matching circuit module adjusts the amplitude and frequency of the intermediate analog signal by modifying the resistance value of the third resistor and the capacitance value of the second capacitor to obtain a matching signal, thereby making the frequency and amplitude of the target frequency modulation signal output by the current-controlled oscillation module reach the required expected target values.

[0083] The matching signal processed by the filter circuit module and the matching circuit module is directly input into the current controlled oscillation module as the control current. The current controlled oscillation module generates a target frequency modulation signal according to the amplitude change and frequency change of the matching signal in a predetermined period. The target frequency modulation signal can be a square wave oscillation signal.

[0084] Figure 6 The flowchart of the low-power analog signal direct modulation method according to the embodiment of the present disclosure is schematically shown.

[0085] like Figure 6 As shown, the low power consumption analog signal direct modulation method includes operations S610 to S640.

[0086] In operation S610, an external signal of a predetermined period is acquired by using a signal source module and an initial analog signal is generated according to the external signal.

[0087] In operation S620, an interference signal in the initial analog signal is filtered out by using a filter circuit module to obtain an intermediate analog signal, wherein the filter circuit module is electrically connected to the signal source module.

[0088] In operation S630, the amplitude and frequency of the intermediate analog signal are adjusted based on the target amplitude and the target frequency by using a matching circuit module to obtain a matching signal, wherein the matching circuit module is electrically connected to the filter circuit module.

[0089] In operation S640, an oscillation module is used to generate and output a target frequency modulation signal according to the amplitude change and frequency change of the matching signal in a predetermined period, wherein the oscillation module is electrically connected to the matching circuit module.

[0090] According to an embodiment of the present disclosure, operations S610 to S640 may refer to the description of other embodiments of the present disclosure and will not be repeated here.

[0091] Figure 7 A block diagram of an electronic device suitable for implementing the above-described low-power analog signal direct modulation method according to an embodiment of the present disclosure is schematically shown. Figure 7 The electronic device shown is only an example and should not bring any limitation to the functions and scope of use of the embodiments of the present disclosure.

[0092] like Figure 7As shown, the electronic device 700 according to an embodiment of the present disclosure includes a processor 701, which can perform various appropriate actions and processes according to a program stored in a read-only memory (ROM) 703 or a program loaded from a storage part 708 into a random access memory (RAM) 703. The processor 701 may include, for example, a general-purpose microprocessor (e.g., a CPU), an instruction set processor and / or a related chipset and / or a dedicated microprocessor (e.g., an application-specific integrated circuit (ASIC)), etc. The processor 701 may also include an onboard memory for caching purposes. The processor 701 may include a single processing unit or multiple processing units for performing different actions of the method flow according to an embodiment of the present disclosure.

[0093] In RAM 703, various programs and data required for the operation of electronic device 700 are stored. Processor 701, ROM 703 and RAM 703 are connected to each other through bus 704. Processor 701 performs various operations of the method flow according to the embodiment of the present disclosure by executing the program in ROM 703 and / or RAM 703. It should be noted that the program can also be stored in one or more memories other than ROM 703 and RAM 703. Processor 701 can also perform various operations of the method flow according to the embodiment of the present disclosure by executing the program stored in the one or more memories.

[0094] According to an embodiment of the present disclosure, the electronic device 700 may further include an input / output (I / O) interface 705, which is also connected to the bus 704. The electronic device 700 may further include one or more of the following components connected to the input / output (I / O) interface 705: an input portion 706 including a keyboard, a mouse, etc.; an output portion 707 including a cathode ray tube (CRT), a liquid crystal display (LCD), etc., and a speaker, etc.; a storage portion 708 including a hard disk, etc.; and a communication portion 709 including a network interface card such as a LAN card, a modem, etc. The communication portion 709 performs communication processing via a network such as the Internet. A drive 710 is also connected to the input / output (I / O) interface 705 as needed. A removable medium 711, such as a magnetic disk, an optical disk, a magneto-optical disk, a semiconductor memory, etc., is installed on the drive 710 as needed, so that a computer program read therefrom is installed into the storage portion 708 as needed.

[0095] According to an embodiment of the present disclosure, the method flow according to an embodiment of the present disclosure can be implemented as a computer software program. For example, an embodiment of the present disclosure includes a computer program product, which includes a computer program carried on a computer-readable storage medium, and the computer program contains a program code for executing the method shown in the flowchart. In such an embodiment, the computer program can be downloaded and installed from the network through the communication part 709, and / or installed from the removable medium 711. When the computer program is executed by the processor 701, the above-mentioned functions defined in the system of the embodiment of the present disclosure are executed. According to an embodiment of the present disclosure, the system, equipment, device, module, unit, etc. described above can be implemented by a computer program module.

[0096] The present disclosure also provides a computer-readable storage medium, which may be included in the device / apparatus / system described in the above embodiments; or may exist independently without being assembled into the device / apparatus / system. The above computer-readable storage medium carries one or more programs, and when the above one or more programs are executed, the method according to the embodiment of the present disclosure is implemented.

[0097] According to an embodiment of the present disclosure, the computer-readable storage medium may be a non-volatile computer-readable storage medium. For example, it may include, but is not limited to: a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination thereof. In the present disclosure, a computer-readable storage medium may be any tangible medium containing or storing a program that may be used by or in combination with an instruction execution system, apparatus, or device.

[0098] For example, according to an embodiment of the present disclosure, the computer-readable storage medium may include the ROM 703 and / or the RAM 703 described above and / or one or more memories other than the ROM 703 and the RAM 703 .

[0099] An embodiment of the present disclosure also includes a computer program product, which includes a computer program, which contains program code for executing the method provided by the embodiment of the present disclosure. When the computer program product runs on an electronic device, the program code is used to enable the electronic device to implement the low-power analog signal direct modulation method provided by the embodiment of the present disclosure.

[0100] When the computer program is executed by the processor 701, the above functions defined in the system / device of the embodiment of the present disclosure are executed. According to the embodiment of the present disclosure, the system, device, module, unit, etc. described above can be implemented by a computer program module.

[0101] In one embodiment, the computer program may rely on tangible storage media such as optical storage devices, magnetic storage devices, etc. In another embodiment, the computer program may also be transmitted and distributed in the form of signals on a network medium, and downloaded and installed through the communication part 709, and / or installed from the removable medium 711. The program code contained in the computer program may be transmitted using any appropriate network medium, including but not limited to: wireless, wired, etc., or any suitable combination of the above.

[0102] According to an embodiment of the present disclosure, the program code for executing the computer program provided by the embodiment of the present disclosure can be written in any combination of one or more programming languages. Specifically, these computing programs can be implemented using high-level process and / or object-oriented programming languages, and / or assembly / machine languages. Programming languages ​​include, but are not limited to, Java, C++, python, "C" language or similar programming languages. The program code can be executed entirely on the user computing device, partially on the user device, partially on the remote computing device, or entirely on the remote computing device or server. In the case of a remote computing device, the remote computing device can be connected to the user computing device through any type of network, including a local area network (LAN) or a wide area network (WAN), or can be connected to an external computing device (for example, using an Internet service provider to connect through the Internet).

[0103] The flowcharts and block diagrams in the accompanying drawings illustrate the possible implementation architecture, functions and operations of the systems, methods and computer program products according to various embodiments of the present disclosure. In this regard, each box in the flowchart or block diagram may represent a module, a program segment, or a part of a code, and the above-mentioned module, program segment, or a part of the code contains one or more executable instructions for implementing the specified logical function. It should also be noted that in some alternative implementations, the functions marked in the box may also occur in an order different from that marked in the accompanying drawings. For example, two boxes represented in succession can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, depending on the functions involved. It should also be noted that each box in the block diagram or flowchart, and the combination of boxes in the block diagram or flowchart, can be implemented with a dedicated hardware-based system that performs a specified function or operation, or can be implemented with a combination of dedicated hardware and computer instructions. It can be understood by those skilled in the art that the features recorded in the various embodiments of the present disclosure can be combined and / or combined in a variety of ways, even if such a combination or combination is not explicitly recorded in the present disclosure. In particular, without departing from the spirit and teaching of the present disclosure, the features described in the various embodiments of the present disclosure may be combined and / or combined in a variety of ways. All of these combinations and / or combinations fall within the scope of the present disclosure.

[0104] The embodiments of the present disclosure are described above. However, these embodiments are only for illustrative purposes and are not intended to limit the scope of the present disclosure. Although the embodiments are described above, this does not mean that the measures in the various embodiments cannot be used in combination to advantage. Without departing from the scope of the present disclosure, those skilled in the art may make a variety of substitutions and modifications, which should all fall within the scope of the present disclosure.

Claims

1. A low-power analog signal direct modulation microsystem, comprising: A signal source module, configured to obtain an external signal of a predetermined period and generate an initial analog signal according to the external signal; A filter circuit module, electrically connected to the signal source module, configured to filter out interference signals in the initial analog signal to obtain an intermediate analog signal; a matching circuit module, electrically connected to the filter circuit module, and configured to adjust the amplitude and frequency of the intermediate analog signal based on a target amplitude and a target frequency to obtain a matching signal; The oscillation module is electrically connected to the matching circuit module and is configured to generate and output a target frequency modulation signal according to the amplitude change and frequency change of the matching signal in the predetermined time period.

2. The system according to claim 1, wherein: In the case where the initial analog signal is voltage-valid, the matching signal is a voltage-valid signal; In the case where the initial analog signal is a current valid signal, the matching signal is a current valid signal; The oscillation module is further configured to generate and output the target frequency modulation signal according to the amplitude change and frequency change of the voltage effective signal or the current effective signal.

3. The system according to claim 2, wherein: The matching circuit module includes: a first resistor, a second resistor and a first capacitor, the first resistor is connected in parallel with the first capacitor, the first end of the first resistor is connected to the filter circuit module, the second end of the first resistor is connected to the oscillation module, the first end of the first capacitor is connected to the filter circuit module, the second end of the first capacitor is connected to the oscillation module, the first end of the second resistor is connected to the second end of the first resistor, and the second end of the second resistor is grounded.

4. The system according to claim 3, wherein: The matching circuit module is configured to adjust the amplitude and frequency of the intermediate analog signal by modifying the resistance value of the first resistor, the resistance value of the second resistor and the capacitance value of the first capacitor based on the target amplitude and the target frequency to obtain the matching signal.

5. The system according to claim 2, wherein: The matching circuit module includes: a third resistor and a second capacitor, the third resistor is connected in parallel with the second capacitor, the first end of the third resistor is connected to the filter circuit module, the second end of the third resistor is connected to the oscillation module, the first end of the second capacitor is connected to the filter circuit module, and the second end of the second capacitor is connected to the oscillation module.

6. The system according to claim 5, wherein: The matching circuit module is configured to adjust the amplitude and frequency of the intermediate analog signal by modifying the resistance value of the third resistor and the capacitance value of the second capacitor based on the target amplitude and the target frequency to obtain the matching signal.

7. The system according to any one of claims 2 to 6, wherein: In the case where the matching signal is the voltage effective signal, the oscillation module is a voltage controlled oscillation module; In the case that the matching signal is the current effective signal, the oscillation module is a current controlled oscillation module.

8. The system according to any one of claims 1 to 6, wherein: The filter circuit module includes a third capacitor, a first end of the third capacitor is connected to the information source module, and a second end of the third capacitor is connected to the matching circuit module.

9. The system according to any one of claims 1 to 6, wherein: The frequency and amplitude of the target frequency modulation signal are the same as the frequency and amplitude of the matching signal.

10. A low-power analog signal direct modulation method, comprising: Using a signal source module to acquire an external signal of a predetermined period of time and generate an initial analog signal according to the external signal; Using a filter circuit module to filter out interference signals in the initial analog signal to obtain an intermediate analog signal, wherein the filter circuit module is electrically connected to the signal source module; Using a matching circuit module to adjust the amplitude and frequency of the intermediate analog signal based on a target amplitude and a target frequency to obtain a matching signal, wherein the matching circuit module is electrically connected to the filter circuit module; An oscillation module is used to generate and output a target frequency modulation signal according to the amplitude change and frequency change of the matching signal in the predetermined period, wherein the oscillation module is electrically connected to the matching circuit module.

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