Method and device for determining driving mode and working frequency of transducer, storage medium and electronic equipment

Abstract

The invention discloses a method and a device for determining a driving mode and a working frequency of a transducer, a storage medium and electronic equipment. The method comprises the following steps: acquiring concentrated equivalent circuit parameters of a transducer, constructing a concentrated equivalent circuit model of the transducer, and determining a driving frequency bandwidth; classifying the driving modes of the transducer and classifying different loads in various driving modes; or classifying the loads of the transducer and classifying different driving modes under each load type; analyzing frequency responses of transducers with different loads in various driving modes; or analyzing frequency responses of transducers with different driving modes under various load types; and matching a target driving mode suitable for the transducer and a target working frequency under the target driving mode according to the actual working condition and the frequency response. In the embodiment, the target driving mode and the target working frequency of the transducer are high in accuracy and high in interpretability.

Description

Technical Field

[0001] The present invention relates to the technical field of ultrasonic devices, and particularly to a method, device, storage medium and electronic device for determining a driving mode and operating frequency of a transducer. Background Art

[0002] A transducer is a device that converts electrical energy into mechanical energy (acoustic energy) and can be applied in different scenarios. For example, the application scenarios of the transducer can include, but are not limited to, different scenarios in the medical field, such as cutting and hemostasis, welding, etc.

[0003] Currently, the driving mode and operating frequency of the transducer are set based on human experience, with a strong dependence on human experience and poor interpretability. There are problems such as inaccurate determination of the driving mode and operating frequency, which affect the working state of the transducer. Summary of the Invention

[0004] The present invention provides a method, device, storage medium and electronic device for determining a driving mode and operating frequency of a transducer, which improves the accuracy of the driving mode and operating frequency of the transducer.

[0005] According to one aspect of the present invention, there is provided a method for determining a driving mode and operating frequency of a transducer, including:

[0006] Obtaining the lumped equivalent circuit parameters of the transducer, constructing the lumped equivalent circuit model of the transducer and determining the driving frequency bandwidth;

[0007] Classifying the driving modes of the transducer and classifying different loads under various driving modes; or classifying the loads of the transducer and classifying different driving modes under each load type;

[0008] Determining the threshold of each load type, where the load of the transducer has at least two load types;

[0009] Analyzing the frequency response of the transducer with different loads under various driving modes; or analyzing the frequency response of the transducer with different driving modes under various load types;

[0010] Matching a target driving mode applicable to the transducer and a target operating frequency under the target driving mode according to the actual working condition and the frequency response.

[0011] Optionally, the lumped equivalent circuit parameters include a static branch capacitance, a dynamic branch capacitance, a dynamic branch resistance and a dynamic branch inductance; the actual working condition includes the load of the transducer in different application scenarios.

[0012] Optionally, classifying the driving modes of the transducer and classifying different loads under various driving modes includes: classifying the driving modes of the transducer into: constant voltage mode, constant current mode, constant power mode, and constant amplitude mode; and classifying the loads under each of the driving modes into: no load, light load, light load, medium load, heavy load, and overweight load;

[0013] Classifying the loads of the transducer and classifying different driving modes under each load type includes: no load, light load, light load, medium load, heavy load, and overweight load; and classifying the driving modes under each of the load types into: constant voltage mode, constant current mode, constant power mode, and constant amplitude mode.

[0014] Optionally, the frequency response of the transducer includes one or more of output current, output voltage, active power, apparent power, and output amplitude.

[0015] Optionally, analyzing the frequency response of the transducer with different loads under various driving modes includes:

[0016] The apparent power, active power, output voltage, and output amplitude calculated based on the known constant input current value and total impedance when the driving mode is the constant current mode;

[0017] The apparent power, active power, output current, and output amplitude calculated based on the known constant input voltage value and total impedance when the driving mode is the constant voltage mode;

[0018] When the driving mode is the constant power mode, it includes: the output current, active power, output voltage, and output amplitude calculated based on the known constant input apparent power value and total impedance when the constant power mode is the constant apparent power; and the output current, apparent power, output voltage, and output amplitude calculated based on the known constant input active power and total impedance when the constant power mode is the constant active power;

[0019] The output dynamic branch current, output voltage, output current, apparent power, and active power calculated based on the known constant input amplitude and total impedance when the driving mode is the constant amplitude mode.

[0020] Optionally, matching the target driving mode applicable to the transducer and the target operating frequency under the target driving mode according to the actual working conditions and frequency response includes: if the frequency responses of the transducer under any of the driving modes for different load types all meet the working parameter conditions corresponding to the actual working conditions, then determining the driving mode as the target driving mode, and determining the target operating frequency within the driving frequency bandwidth.

[0021] Optionally, the method further includes: for each load type, determining the frequency response of the load type under different driving modes, matching the working parameter conditions corresponding to the actual working condition with the frequency responses of various load types under different driving modes respectively, and determining multiple driving modes corresponding to the frequency response that meets the working parameter conditions corresponding to the actual working condition and multiple working frequencies matched under the multiple driving modes as multiple target driving modes and multiple target working frequencies applicable to the transducer.

[0022] Optionally, the matching of the working parameter conditions corresponding to the actual working condition with the frequency responses of the load type under different driving modes respectively includes: based on the driving mode priority corresponding to the actual working condition, successively matching the working parameter conditions corresponding to the actual working condition with the frequency responses of the load type under different driving modes respectively until the target driving mode applicable to the transducer and the target working frequency point under the target driving mode are determined.

[0023] Optionally, the method further includes: determining an effective frequency band that meets the working parameter conditions corresponding to the actual working condition under the target driving mode, where the effective frequency band is at least a partial frequency band of the driving frequency bandwidth; and determining the target working frequency under the target driving mode based on the effective frequency band.

[0024] Optionally, the determining of the target working frequency under the target driving mode based on the effective frequency band includes one or more of the following: determining a set frequency in the effective frequency band as the target working frequency, where the set frequency includes multiple natural frequencies of the transducer; determining the center frequency of the effective frequency band as the target working frequency; and determining, among at least one set frequency in the effective frequency band, the set frequency with the smallest distance from the center frequency of the effective frequency band as the target working frequency.

[0025] According to another aspect of the present invention, there is provided a device for determining a driving mode and a working frequency of a transducer, including:

[0026] A parameter acquisition module, which acquires the lumped equivalent circuit parameters of the transducer, constructs a lumped equivalent circuit model of the transducer and determines the driving frequency bandwidth;

[0027] A classification module, which is used to classify the driving modes of the transducer and classify different loads under various driving modes; or classify the loads of the transducer and classify different driving modes under each load type; and determine the threshold of each load type, where the loads of the transducer have at least two types;

[0028] A frequency response analysis module, which is used to analyze the frequency response of transducers with different loads under various driving modes; or analyze the frequency response of transducers with different driving modes under various load types;

[0029] A driving mode and operating frequency determination module, which is used to match a target driving mode applicable to the transducer and a target operating frequency under the target driving mode according to the actual working conditions and frequency response.

[0030] According to another aspect of the present invention, there is provided an electronic device, which includes:

[0031] At least one processor; and

[0032] A memory communicatively connected to the at least one processor; wherein,

[0033] The memory stores a computer program executable by the at least one processor, and the computer program is executed by the at least one processor so that the at least one processor can execute the method for determining the driving mode and operating frequency of the transducer according to any embodiment of the present invention.

[0034] According to another aspect of the present invention, there is provided a computer-readable storage medium, which stores computer instructions for causing a processor to implement the method for determining the driving mode and operating frequency of the transducer according to any embodiment of the present invention when executed.

[0035] The technical solution of the embodiment of the present invention

[0036] By classifying the driving mode and load of the transducer respectively, different driving modes of the transducer and different load types of the transducer are obtained. By analyzing the frequency response of the transducer under different driving modes and different load types, for the actual working conditions of the transducer, a target driving mode applicable to the transducer and a target operating frequency under the target driving mode are matched and determined among the frequency responses of the transducer under different driving modes and different load types, which improves the method of setting the driving mode and operating frequency of the transducer based on human experience. The accuracy of the target driving mode and target operating frequency of the transducer is high, the interpretability is strong, and the dependence on human experience is reduced.

[0037] It should be understood that the content described in this part is not intended to identify the key or important features of the embodiments of the present invention, nor is it used to limit the scope of the present invention. Other features of the present invention will become easily understood through the following description. Description of the Drawings

[0038] To more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the accompanying drawings required for the description of the embodiments. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other accompanying drawings can be obtained based on these drawings.

[0039] Figure 1 It is a flowchart of a method for determining the driving mode and operating frequency of a transducer provided by an embodiment of the present invention;

[0040] Figure 2 It is a schematic diagram of the lumped equivalent circuit model of the transducer provided by an embodiment of the present invention;

[0041] Figure 3 It is a schematic diagram of the frequency response of each operating parameter for medium load in the constant current mode provided by an embodiment of the present invention;

[0042] Figure 4 It is a schematic diagram of the frequency response of each operating parameter for overweight load in the constant voltage mode provided by an embodiment of the present invention;

[0043] Figure 5 It is a schematic diagram of the frequency response of each operating parameter for light load in the constant apparent power mode provided by an embodiment of the present invention;

[0044] Figure 6 It is a schematic diagram of the frequency response of each operating parameter for light load in the constant active power mode provided by an embodiment of the present invention;

[0045] Figure 7 It is a schematic diagram of the frequency response of each operating parameter for light load in the constant amplitude mode provided by an embodiment of the present invention;

[0046] Figure 8 It is a schematic diagram of the structure of a device for determining the driving mode and operating frequency of a transducer provided by an embodiment of the present invention;

[0047] Figure 9 It is a schematic diagram of the structure of an electronic device provided by an embodiment of the present invention. Detailed implementation manners

[0048] To enable those skilled in the art to better understand the solutions of the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0049] It should be noted that the terms "first", "second", etc. in the description, claims and the above-mentioned drawings of the present invention are used to distinguish similar objects, and do not necessarily have to be used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device comprising a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0050] Figure 1 FIG. Figure 1 is a flowchart of a method for determining a driving mode and operating frequency of a transducer provided by an embodiment of the present invention. This embodiment is applicable to analyzing the frequency response of a transducer for different driving modes and different load types, and determining a target driving mode and a target operating frequency applicable to the transducer based on the actual working conditions and frequency response of the transducer. This method can be executed by a device for determining the driving mode and operating frequency of a transducer, which can be implemented in the form of hardware and / or software, and the device for determining the driving mode and operating frequency of the transducer can be configured in an electronic device, and the electronic device includes but is not limited to mobile terminals, computers, servers, etc. The mobile terminal can be devices such as mobile phones and tablet computers. As Figure 1 shown, the method includes:

[0051] S110. Obtain the lumped equivalent circuit parameters of the transducer, construct the lumped equivalent circuit model of the transducer, and determine the driving frequency bandwidth.

[0052] S120. Classify the driving modes of the transducer and classify different loads under each driving mode; or classify the loads of the transducer and classify different driving modes under each load type.

[0053] S130. Determine the thresholds for each load type, where the load of the transducer has at least two load types.

[0054] S140. Analyze the frequency response of the transducer with different loads under each driving mode; or analyze the frequency response of the transducer with different driving modes under each load type.

[0055] S150. Match the target driving mode applicable to the transducer and the target operating frequency under the target driving mode according to the actual working conditions and the frequency response.

[0056] In this embodiment, the transducer may include an ultrasonic transducer, and the type of the transducer may not be limited herein. For the convenience of analyzing the driving mode and operating frequency of the transducer, a lumped equivalent circuit model of the transducer is constructed, where the lumped equivalent circuit model of the transducer is constructed based on the lumped equivalent circuit parameters of the transducer. Optionally, the lumped equivalent circuit parameters include a static branch capacitance, a dynamic branch capacitance, a dynamic branch resistance, and a dynamic branch inductance. For example, the lumped equivalent circuit parameters can be obtained by detecting the parameters of the transducer through devices such as an impedance analyzer or a bridge. Specifically, when the transducer can be in a set operating state, the lumped equivalent circuit parameters of the transducer are detected. Among them, the set operating state may include one or more of an unloaded operating state and a light-load operating state; or, the set operating state can be understood as an operating state where the load of the transducer is less than a set load threshold.

[0057] Exemplarily, refer to Figure 2 , Figure 2 which is a schematic diagram of the lumped equivalent circuit model of the transducer provided by the embodiment of the present invention. Among them, Figure 2 in which C S is the static branch capacitance of the transducer, C d is the dynamic branch capacitance of the transducer, L d is the dynamic branch inductance of the transducer, and R d is the dynamic branch resistance of the transducer.

[0058] The driving frequency bandwidth of the transducer can be understood as the operating frequency range of the transducer, which can be determined based on the resonant frequency of the transducer, and this resonant frequency can be used as the center frequency of the operating frequency range. Specifically, the operating frequency range is determined based on the resonant frequency and a preset frequency extension value. The preset frequency extension value can be understood as the allowable adjustment value of the driving frequency bandwidth relative to the resonant frequency. Among them, the maximum frequency value of the operating frequency range is determined based on the sum of the resonant frequency and the preset frequency extension value, and the minimum frequency value of the operating frequency range is determined based on the difference between the resonant frequency and the preset frequency extension value. The frequency range between the maximum frequency value and the minimum frequency value forms the driving frequency bandwidth of the transducer.

[0059] The resonant frequency of the transducer can be determined based on the dynamic branch capacitance and the dynamic branch inductance. For example, the resonant frequency of the transducer can be expressed as The preset frequency extension value here can be pre-set and is not limited.

[0060] When the transducer is in the operating state, its operating parameters include one or more of output current, output voltage, active power, apparent power, and output amplitude. For the driving mode of the transducer, that is, classifying the driving mode of the transducer based on constant operating parameters. Correspondingly, the driving mode of the transducer is classified into: constant voltage mode, constant current mode, constant power mode, and constant amplitude mode. Among them, the constant voltage mode can be understood as the driving mode that keeps the output voltage constant during the driving process of the transducer, the constant current mode can be understood as the driving mode that keeps the output current constant during the driving process of the transducer, the constant power mode can be understood as the driving mode that keeps the active power or apparent power constant during the driving process of the transducer, and the constant amplitude mode can be understood as the driving mode that keeps the output amplitude constant during the driving process of the transducer.

[0061] During different operating processes of the transducer, the load is different, and the driving mode and operating frequency required by the transducer for different loads can be different. In order to improve the accuracy of the driving mode and operating frequency of the transducer, the load of the transducer is classified to obtain multiple load types of the transducer, and the transducer is analyzed separately for different load types to improve the analysis accuracy and pertinence. Optionally, the load of the transducer includes at least two load types. The number of load types is not limited here. For example, the load types can be three, including no load, light load, and heavy load; for example, the load types can be four, including no load, light load, medium load, and heavy load; for example, the load types can be six, including no load, lighter load, light load, medium load, heavy load, and overweight load. The above classification methods of the load are only examples and can be determined according to the classification requirements.

[0062] Optionally, the load can be classified based on the value of the dynamic branch resistance of the transducer during the operating process. For example, the historical value of the dynamic branch resistance of the transducer during the historical operating process can be obtained, the load range can be determined based on the impedances corresponding to the maximum and minimum values of the historical value of the dynamic branch resistance, and the load range can be divided into at least two load types based on the uniform division method.

[0063] Optionally, the load can be classified based on the value of the total reactance of the transducer during the operating process. For example, the historical value of the total reactance of the transducer during the historical operating process can be obtained, the load range can be determined based on the maximum and minimum values of the historical value of the total reactance, and the load range can be divided into at least two load types based on the uniform division method.

[0064] In the above embodiments, each load type can respectively correspond to a load range, and the maximum value of the load range is determined as the threshold of the load type.

[0065] Optionally, multiple classification thresholds are determined based on the impedance corresponding to the static branch capacitance, and load classification is performed based on the multiple classification thresholds to obtain multiple load types. Specifically, multiple load ranges are determined based on the multiple classification thresholds, and each load range corresponds to a load type. Taking the load types including no-load, light load, medium load, heavy load, and overheavy load as an example, the multiple classification thresholds determined based on the impedance corresponding to the static branch capacitance may include 0, and where C S is the static branch capacitance of the transducer, w is the rotational angular velocity of the transducer, which is related to the operating frequency of the transducer, where w = 2πf and f is the frequency.

[0066] In this embodiment, the classification timing of the drive mode and the load type is not limited. In some embodiments, the drive mode is classified and the load is classified respectively, and the drive mode and the load type are traversed to obtain various combination forms of the drive mode and the load type.

[0067] In some embodiments, the drive mode of the transducer can be classified first, and then the load of the transducer can be classified for each drive mode, that is, the drive mode of the transducer is classified and the load under each drive mode is classified, including: classifying the drive mode of the transducer into: constant voltage mode, constant current mode, constant power mode, and constant amplitude mode; and classifying the load under each drive mode into: no-load, light load, medium load, heavy load, and overheavy load.

[0068] In some embodiments, the load of the transducer can be classified first, and for each load type, the drive mode of the transducer is classified, that is, the load of the transducer is classified and the drive mode under each load type is classified, including: classifying the load of the transducer into: no-load, light load, medium load, heavy load, and overheavy load; and classifying the drive mode under each load type into: constant voltage mode, constant current mode, constant power mode, and constant amplitude mode.

[0069] Exemplarily, referring to Table 1, Table 1 shows the corresponding relationship between the drive mode and the load type of the transducer. Table 1 is only an example, R x is the actual load of the transducer, R l is another resistance parameter in the lumped equivalent circuit parameters. Generally, R l can be zero.

[0070] Table 1

[0071]

[0072] As can be seen from Table 1, the thresholds corresponding to no load, light load, medium load, heavy load, and overweight load in Table 1 are 0, and In this embodiment, by using the threshold corresponding to the load type as the key feature point in the load range corresponding to the load type to analyze the transducer, the accuracy of the analysis process is improved.

[0073] In the case of classifying the drive mode and load type, determine the frequency response of the transducer in any combination of drive mode and load type. For example, it can be the frequency response of the transducer with different loads under various drive modes, or the frequency response of the transducer with different drive modes under various load types. The frequency response here can be understood as the response value of the working parameters of the transducer relative to each frequency value in the drive frequency bandwidth.

[0074] The frequency response of the transducer includes one or more of output current, output voltage, active power, apparent power, and output amplitude. Correspondingly, the frequency response of the transducer can include one or more of the current response value, output voltage response value, active power response value, apparent power response value, and output amplitude response value relative to each frequency value in the drive frequency bandwidth.

[0075] In the analysis process of the frequency response of the transducer for any load type under any drive mode, or the frequency response of the transducer for any drive mode under any load type, any drive mode can correspond to a constant working parameter and multiple undetermined working parameters. Taking the constant voltage mode as an example, the constant working parameter is the output voltage, and the undetermined working parameters include output current, active power, apparent power, and output amplitude; taking the constant amplitude mode as an example, the constant working parameter is the output amplitude, and the undetermined working parameters include output current, output voltage, active power, and apparent power. The same applies to other drive modes and will not be elaborated here.

[0076] In the process of determining the frequency response of the transducer, obtain the total impedance corresponding to the constant working parameter and load type under the drive mode, and determine the frequency response relationship of the undetermined working parameter with respect to the load type based on the conversion relationship between the undetermined working parameter and one or more of the constant working parameter and the total impedance. The undetermined working parameter is other working parameters except the constant working parameter; based on the frequency response relationship of the undetermined working parameter with respect to the load type and the drive frequency bandwidth, determine the frequency response of the transducer under the drive mode and load type.

[0077] Among them, the constant working parameter under the drive mode can be based on the maximum value of this working parameter that the transducer can provide. Taking the constant current mode as an example, the constant working parameter is the output current, and this constant current value is the maximum output current of the transducer.

[0078] The corresponding total impedance of the load type can be determined based on the static branch impedance and the dynamic branch impedance in the lumped equivalent circuit model. The static branch impedance is determined based on the static branch capacitance Cs, and the dynamic branch impedance is determined based on the dynamic branch capacitance Cd, the dynamic branch inductance Ld, and the threshold corresponding to the load type.

[0079] Optionally, the apparent power, active power, output voltage, and output amplitude calculated based on the known constant input current value and the total impedance when the driving mode is the constant current mode.

[0080] Among them, the conversion relationships between the to-be-determined working parameters and the constant working parameters respectively include the conversion relationship between the output voltage and the output current, the conversion relationship between the output amplitude and the output current, the conversion relationship between the active power and the output current, and the conversion relationship between the apparent power and the output current. Determine the frequency response relationship of the to-be-determined working parameters for the load type based on the conversion relationships between the to-be-determined working parameters and the constant working parameters respectively, that is, the mapping relationship between the to-be-determined working parameters and the frequency under each load type. For example, it may include the mapping relationship between the output voltage and the frequency, the conversion relationship between the output amplitude and the frequency, the conversion relationship between the active power and the frequency, and the conversion relationship between the apparent power and the frequency. Determine the frequency response of the transducer under the driving mode and the load type based on the frequency response relationship of the to-be-determined working parameters for the load type and the driving frequency bandwidth.

[0081] Exemplarily, the current vector of the transducer is I(jw), the total impedance is Z a (jw), the static branch impedance Z s (jw), the dynamic branch impedance Z d (jw), the voltage vector is U(jw), the active power is P(jw), the apparent power is S(jw), and the mechanical amplitude is A(jw). According to the characteristics of the ultrasonic transducer and the driving ability of the ultrasonic power supply, the maximum and minimum thresholds of I(jw), U(jw), S(jw), and A(jw) can be determined, and the maximum and minimum thresholds of P(jw) can be determined according to the actual application requirements.

[0082] In the constant current mode, the frequency response relationship corresponding to the apparent power is: S(jw) = I(jw) 2 Z a (jw);

[0083] The frequency response relationship corresponding to the active power is: P(jw) = I(jw) 2 Z a (jw)cos(θ), where θ is the phase difference between the current and the voltage;

[0084] The frequency response relationship corresponding to the output voltage is: U(jw) = I(jw)Za (jw);

[0085] The frequency response relationship corresponding to the output amplitude is: where n is the electromechanical conversion coefficient, which is a constant. In any of the above frequency response relationships, w = 2πf, and f is the frequency.

[0086] In the constant current mode, obtain the known constant input current value and the total impedance, and determine the frequency responses of the apparent power, active power, output amplitude, and output voltage based on the known constant input current value and the total impedance. Assume that the amplitude of the maximum current of the transducer is 0.5 A, and the initial phase is defaulted to 0°; assume that the amplitude of the maximum voltage of the transducer is 150 V, and the initial phase is defaulted to 0; assume that the maximum apparent power of the transducer is 50 W, and the maximum active power is 35 W, and the maximum amplitude is 100 um. Here, the known constant input current value in the constant current mode can be 0.5 A. For any load type, taking the medium load as an example, the threshold corresponding to the medium load is Determine the total impedance based on the threshold corresponding to the medium load, the static branch capacitance Cs, the dynamic branch capacitance Cd, and the dynamic branch inductance Ld.

[0087] Exemplarily, refer to Figure 3 , Figure 3 is the schematic diagram of the frequency response of each working parameter in the constant current mode provided by the embodiment of the present invention for the medium load. Where Figure 3 Figure a in Figure 3 is the frequency response of the output voltage in the constant current mode and under the medium load, Figure 3 Figure b in Figure 3 is the frequency response of the output amplitude in the constant current mode and under the medium load,

[0088] Figure c in

[0089] is the frequency response of the apparent power in the constant current mode and under the medium load,

[0090] Figure d in

[0088] is the frequency response of the active power in the constant current mode and under the medium load. It can be understood that the schematic diagrams of the frequency responses of the transducer under other load types in the constant current mode are not shown here.

[0088] Similarly, in the constant current mode, for each load type, determine the total impedance corresponding to the load type, and based on the total impedance corresponding to the load type and the known constant input current value, determine the frequency responses of the above working parameters of the transducer under each load type in the constant current mode.

[0089] Optionally, the apparent power, active power, output current, and output amplitude calculated based on the known constant input voltage value and the total impedance when the drive mode is the constant voltage mode.

[0090] In the constant voltage mode, the constant working parameter is the output voltage, and the conversion relationship between the to-be-determined working parameters and the constant working parameters includes the conversion relationship between the output current and the output voltage, the conversion relationship between the output amplitude and the output voltage, the conversion relationship between the active power and the output voltage, and the conversion relationship between the apparent power and the output voltage. Correspondingly, the frequency response relationship of the to-be-determined working parameters for the load type, that is, the mapping relationship between the to-be-determined working parameters and the frequency under the load type, for example, may include the mapping relationship between the output current and the frequency, the conversion relationship between the output amplitude and the frequency, the conversion relationship between the active power and the frequency, and the conversion relationship between the apparent power and the frequency.

[0091] Among them, in constant voltage mode, the frequency response relationship corresponding to the apparent power is:

[0092] The frequency response relationship corresponding to active power is: Where θ is the phase difference between current and voltage;

[0093] The frequency response relationship corresponding to the output current is:

[0094] The frequency response relationship corresponding to the output amplitude is: Where n is the electromechanical conversion coefficient, which is a constant.

[0095] In the constant voltage mode, a known constant input voltage value and a total impedance are obtained, and the frequency response of the apparent power, the active power, the output amplitude, and the output current is determined based on the known constant input voltage value and the total impedance. For example, the known constant input voltage value is the amplitude of the maximum voltage of the transducer, and illustratively, the known constant input voltage value is 150V. For each load type, the total impedance corresponding to the load type is determined, and based on the total impedance corresponding to the load type and the known constant input voltage value, the frequency response of the above-mentioned working parameters of the transducer under each load type in the constant voltage mode is determined.

[0096] For example, see Figure 4 , Figure 4 A schematic diagram of the frequency response of various operating parameters to an overload under a constant voltage mode provided by an embodiment of the present invention. Figure 4 Figure a shows the frequency response of the output current in constant voltage mode and under heavy load conditions. Figure 4 Figure b shows the frequency response of the output amplitude in constant voltage mode and under heavy load conditions. Figure 4 Figure c in the figure shows the frequency response of the apparent power in constant voltage mode and under overload conditions. Figure 4 Figure d in FIG. 1 is the frequency response of active power in constant voltage mode and under overload conditions. It is understandable that the frequency response diagram of the transducer under other load types in constant voltage mode is not shown here.

[0097] Optionally, in the constant power mode, the output current, active power, output voltage, and output amplitude calculated based on the known constant input apparent power value and the total impedance at a constant apparent power.

[0098] At a constant apparent power, the constant operating parameter is the apparent power, and the conversion relationships between the to-be-determined operating parameters and the constant operating parameter respectively include the conversion relationship between the output current and the apparent power, the conversion relationship between the output amplitude and the apparent power, the conversion relationship between the active power and the apparent power, and the conversion relationship between the output voltage and the apparent power. Correspondingly, the frequency response relationships of the to-be-determined operating parameters for different load types, that is, the mapping relationships between the to-be-determined operating parameters and the frequency under different load types, for example, may include the mapping relationship between the output current and the frequency, the conversion relationship between the output amplitude and the frequency, the conversion relationship between the active power and the frequency, and the conversion relationship between the output voltage and the frequency.

[0099] Among them, at a constant apparent power, the frequency response relationship corresponding to the output current is:

[0100] The frequency response relationship corresponding to the output voltage is:

[0101] The frequency response relationship corresponding to the active power is: P(jw) = S(jw)cos(θ), where θ is the phase difference between the current and the voltage;

[0102] The frequency response relationship corresponding to the output amplitude is: where n is the electromechanical conversion coefficient, which is a constant.

[0103] Under a constant voltage apparent power, obtain the known constant input apparent power value and the total impedance, and determine the frequency responses of the output voltage, active power, output amplitude, and output current based on the known constant input apparent power value and the total impedance. For example, the known constant input apparent power value is the maximum apparent power of the transducer. Exemplarily, the known constant input apparent power value is 50W. For each load type, determine the total impedance corresponding to the load type, and based on the total impedance corresponding to the load type and the known constant input apparent power value, determine the frequency responses of the above-mentioned operating parameters of the transducer under each load type in the constant apparent power mode.

[0104] Exemplarily, refer to Figure 5 , Figure 5 is the schematic diagram of the frequency responses of each operating parameter under a constant apparent power provided by the embodiment of the present invention for a light load. Among them Figure 5 Figure a in Figure 5Figure b in [X] shows the frequency response of the output amplitude under constant apparent power and light load conditions. Figure 5 Figure c in [X] shows the frequency response of the output voltage under constant apparent power and light load conditions. Figure 5 Figure d in [X] shows the frequency response of the active power under constant apparent power and light load conditions. It can be understood that the schematic diagrams of the frequency responses of the transducer under other load types under constant apparent power are not shown here.

[0105] Optionally, in the driving mode of constant power mode, the output current, apparent power, output voltage, and output amplitude calculated based on the known constant input active power and total impedance under the constant power mode of constant active power.

[0106] Under constant active power, the constant working parameter is the active power, and the conversion relationships between the to-be-determined working parameters and the constant working parameter respectively include the conversion relationship between the output current and the active power, the conversion relationship between the output amplitude and the active power, the conversion relationship between the apparent power and the active power, and the conversion relationship between the output voltage and the active power. Correspondingly, the frequency response relationships of the to-be-determined working parameters for the load type, that is, the mapping relationships between the to-be-determined working parameters and the frequency under the load type, for example, may include the mapping relationship between the output current and the frequency, the conversion relationship between the output amplitude and the frequency, the conversion relationship between the apparent power and the frequency, and the conversion relationship between the output voltage and the frequency.

[0107] Among them, under constant active power, the frequency response relationship corresponding to the output current is:

[0108] The frequency response relationship corresponding to the output voltage is:

[0109] The frequency response relationship corresponding to the output amplitude is: where n is the electromechanical conversion coefficient, which is a constant;

[0110] The frequency response relationship corresponding to the apparent power is: where θ is the phase difference between the current and the voltage.

[0111] Under constant active power, obtain the known constant input active power value and the total impedance, and determine the frequency responses of the output voltage, apparent power, output amplitude, and output current based on the known constant input active power value and the total impedance. For example, the known constant input active power value is the maximum active power of the transducer. Exemplarily, the known constant input active power value is 35W. For each load type, determine the total impedance corresponding to the load type, and based on the total impedance corresponding to the load type and the known constant input active power value, determine the frequency responses of the above working parameters of the transducer under each load type in the constant active power mode.

[0112] Exemplarily, refer to Figure 6 , Figure 6 , which is a schematic diagram of the frequency response of each operating parameter under constant active power for light load provided by an embodiment of the present invention. Among them Figure 6 Figure a in Figure 6 is the frequency response of the output current under constant active power and light load, Figure 6 Figure b in Figure 6 is the frequency response of the output amplitude under constant active power and light load,

[0113] Figure c in

[0114] is the frequency response of the output voltage under constant active power and light load,

[0115] Figure d in

[0116] is the frequency response of the apparent power under constant active power and light load. It can be understood that the schematic diagram of the frequency response of the transducer under other load types under constant active power is not shown here. where n is the electromechanical conversion coefficient, which is a constant;

[0117] The frequency response relationship corresponding to the output current is:

[0118] The frequency response relationship corresponding to the apparent power is:

[0119] The frequency response relationship corresponding to the active power is: P(jw) = S(jw)cos(θ), where θ is the phase difference between the current and the voltage.

[0120] In the constant amplitude mode, a known constant input amplitude and total impedance are obtained, and the frequency responses of the output voltage, apparent power, active power, and output current are determined based on the known constant input amplitude and total impedance. For example, the known constant input amplitude is the maximum amplitude of the transducer. Exemplarily, the known constant input amplitude is 100 um. For each load type, the total impedance corresponding to the load type is determined, and based on the total impedance corresponding to the load type and the known constant input amplitude, the frequency responses of the above-mentioned operating parameters of the transducer under each load type in the constant amplitude mode are determined.

[0121] Exemplarily, refer to Figure 7 , Figure 7 is a schematic diagram of the frequency responses of the operating parameters in the constant amplitude mode provided by the embodiments of the present invention for a light load. Wherein Figure 7 Figure a in Figure 7 is the frequency response of the output current in the constant amplitude mode and under a light load, Figure 7 Figure b in Figure 7 is the frequency response of the output amplitude in the constant amplitude mode and under a light load,

[0122] Figure c in

[0123] is the frequency response of the output voltage in the constant amplitude mode and under a light load,

[0124] Figure d in

[0125] is the frequency response of the apparent power in the constant amplitude mode and under a light load. It can be understood that the schematic diagrams of the frequency responses of the transducer under other load types in the constant amplitude mode are not shown here.

[0122] It should be noted that in this embodiment, the frequency response of the transducer is displayed in the form of a curve. The horizontal axis of the frequency response is frequency, and the vertical axis is the operating parameter of the transducer. Among them, the frequency on the horizontal axis is the frequency within the driving frequency bandwidth. Displaying the frequency response of the transducer through a curve is convenient for intuitively determining the change of the operating parameter of the transducer with frequency.

[0123] It can be understood that for any transducer, the frequency responses of the transducer under different load types in each driving model can be stored, which is convenient for calling the stored frequency responses during the operation of the transducer to determine the operating frequency of the driving mode required during the operation process, without repeatedly executing the above-mentioned analysis process of the frequency response, reducing the occupation of the computing power and resources of the electronic device.

[0124] During the operation of the transducer, the actual working condition of the transducer is obtained, and based on the actual working condition of the transducer and the frequency response of the transducer, the target driving mode applicable to the transducer and the target operating frequency in the target driving mode are determined.

[0125] Optionally, the actual working conditions include the application scenarios of the transducer and the loads in the application scenarios. Among them, the application scenarios of the transducer include, but are not limited to, ultrasonic welding, soft tissue cutting in the medical field, etc. According to the actual working conditions of the transducer, determine the target driving mode of the transducer and the target operating frequency in the target driving mode, and control the transducer to operate in the target driving mode and the target operating frequency.

[0126] It can be understood that different application scenarios of the transducer correspond to different working parameter conditions, or different load types of the transducer in the application scenarios correspond to different working parameter conditions. Among them, the working parameter conditions include the normal value ranges corresponding to multiple working parameters of the transducer.

[0127] Optionally, match the working parameter conditions corresponding to the actual working conditions according to the application scenario in the actual working conditions; or, determine the application scenario and load type corresponding to the actual working conditions according to the load in the application scenario in the actual working conditions, and match the working parameter conditions corresponding to the actual working conditions based on the application scenario and load type corresponding to the actual working conditions.

[0128] Optionally, matching the target driving mode applicable to the transducer and the target operating frequency in the target driving mode according to the actual working conditions and the frequency response includes: matching the working parameter conditions corresponding to the actual working conditions with the frequency responses of various load types under different driving modes respectively. If the frequency responses of the transducer for different load types under any driving mode all meet the working parameter conditions corresponding to the actual working conditions, then determine the driving mode as the target driving mode, and determine the target operating frequency within the driving frequency bandwidth.

[0129] For each driving mode, the frequency responses of transducers of different load types in this driving mode are respectively matched with the working parameter conditions corresponding to the actual working conditions in the actual working conditions (here, it can be the working parameter conditions corresponding to the application scenario of the actual working conditions, or the working parameter conditions corresponding to different load types in the application scenario of the actual working conditions). Specifically, the frequency response of the transducer of each load type in this driving mode is matched with the working parameter conditions corresponding to the actual working conditions in the actual working conditions to determine whether the frequency response of the transducer of each load type meets the working parameter conditions corresponding to the actual working conditions in the actual working conditions. Among them, if, in this driving model, the frequency response of the transducer of any load type is within the normal value range corresponding to the working parameter conditions corresponding to the actual working conditions in the actual working conditions, it is determined that the frequency response of the transducer of the load type meets the working parameter conditions corresponding to the actual working conditions in the actual working conditions. It can be understood that, in any driving model, the frequency response of the transducer of any load type includes the frequency responses of multiple working parameters; the working parameter conditions corresponding to the actual working conditions include the normal value ranges corresponding to multiple working parameters of the transducer respectively. In any driving model, when the frequency responses of multiple working parameters included in the frequency response of the transducer of any load type all meet the normal value ranges corresponding to multiple working parameters respectively included in the working parameter conditions corresponding to the actual working conditions, it is determined that the frequency response of the transducer of this load type meets the working parameter conditions corresponding to the actual working conditions in the actual working conditions.

[0130] That the frequency responses of the transducer for different load types in any of the driving modes all meet the working parameter conditions corresponding to the actual working conditions indicates that this driving mode can support the normal operation of the transducer under different load types, and this driving mode can be determined as the target driving mode of the transducer. Optionally, based on the priority of the driving mode corresponding to the actual working conditions, the frequency responses of different load types in multiple driving modes are sequentially matched based on the working parameter conditions corresponding to the actual working conditions until the target driving mode is determined.

[0131] Optionally, determining the target operating frequency within the driving frequency bandwidth includes: for the load of the transducer in the actual working conditions, determining the load type to which the load belongs, matching the working parameter conditions corresponding to the actual working conditions with the frequency response of the transducer of this load type in the target driving mode, determining the target driving mode and the effective frequency band that meets the working parameter conditions corresponding to the actual working conditions for this load type, and determining the target operating frequency in the target driving mode based on the effective frequency band.

[0132] Specifically, in the target-driven mode, the frequency bands in which the frequency responses of each working parameter of the transducer meet the working parameter conditions corresponding to the actual working conditions are determined respectively, and the intersection of the frequency bands determined based on the frequency responses of multiple working parameters is used as the effective frequency band. Among them, the effective frequency band is at least a partial frequency band of the driving frequency bandwidth. For example, the effective frequency band can be the global frequency band corresponding to the driving frequency bandwidth, or the effective frequency band can also be a part of the global frequency band corresponding to the driving frequency bandwidth. The target working frequency can be a set frequency in the effective frequency band, or the target working frequency is determined in the effective frequency band based on a preset selection rule.

[0133] Optionally, for each load type, the frequency responses of the load type under different driving modes are determined, and the working parameter conditions corresponding to the actual working conditions are respectively matched with the frequency responses of various load types under different driving modes to determine multiple driving modes corresponding to the frequency responses that meet the working parameter conditions corresponding to the actual working conditions and multiple working frequencies matched under the multiple driving modes, as multiple target driving modes and multiple target working frequencies applicable to the transducer.

[0134] In this embodiment, the frequency responses of transducers of multiple load types under the same driving mode cannot all meet the working parameter conditions corresponding to the actual working conditions. The target driving mode and the target working frequency are determined respectively for each load type. The target driving modes corresponding to different load types can be the same or different, and the target working frequencies corresponding to different load types can be the same or different.

[0135] Optionally, matching the target driving mode applicable to the transducer and the target working frequency under the target driving mode according to the actual working conditions and the frequency response includes: for the load type corresponding to the actual working conditions, determining the frequency responses of the transducer of the load type under different driving modes, and respectively matching the working parameter conditions corresponding to the actual working conditions with the frequency responses of the load type under different driving modes to determine the driving mode corresponding to the frequency response that meets the working parameter conditions corresponding to the actual working conditions and the working frequency matched under the driving mode, as the target driving mode applicable to the transducer and the target working frequency point under the target driving mode.

[0136] The load of the transducer in the actual working conditions is matched with the thresholds (or load ranges) respectively corresponding to multiple load types to determine the load type corresponding to the actual working conditions. Based on the frequency responses of the transducer under each driving mode for the load type corresponding to the actual working conditions, they are respectively matched with the working parameter conditions corresponding to the actual working conditions to determine the driving mode corresponding to the frequency response that meets the working parameter conditions corresponding to the actual working conditions, as the target driving mode corresponding to the load type corresponding to the actual working conditions.

[0137] In some embodiments, when the frequency responses of different load types under each driving mode cannot all meet the working parameter conditions corresponding to the actual working condition, determine the load type corresponding to the actual working condition, and match the frequency responses of each transducer under this load type based on the working parameter conditions corresponding to the actual working condition, so as to obtain the target driving mode and the target working frequency corresponding to this load type for the transducer.

[0138] In the above embodiment, the matching of the working parameter conditions corresponding to the actual working condition with the frequency responses of the load type under the different driving modes respectively includes: based on the driving mode priority corresponding to the actual working condition, sequentially match the working parameter conditions corresponding to the actual working condition with the frequency responses of the load type under the different driving modes respectively until the target driving mode applicable to the transducer and the target working frequency point under the target driving mode are determined.

[0139] Among them, the driving mode priority corresponding to the actual working condition can be understood as the driving mode priority corresponding to the application scenario of the actual working condition. This driving mode priority can be preset and is not limited here. Exemplarily, the priorities of the constant amplitude mode, constant current mode, constant voltage mode, constant active power, and constant apparent power corresponding to the actual working condition decrease in sequence. Match the frequency response of the load type under the constant amplitude mode based on the working parameter conditions corresponding to the actual working condition. If the frequency response of the transducer of the load type under the constant amplitude mode meets the working parameter conditions corresponding to the actual working condition, determine the constant amplitude mode as the target driving mode applicable to the transducer and stop traversing other driving modes; if the frequency response of the transducer of the load type under the constant amplitude mode does not meet the working parameter conditions corresponding to the actual working condition, then match the frequency response of the transducer of the load type under the constant current mode (i.e., the next-priority driving mode) based on the working parameter conditions corresponding to the actual working condition, and so on until the target driving mode applicable to the transducer is determined.

[0140] When the target driving mode is determined, determine the effective frequency band that meets the working parameter conditions corresponding to the actual working condition under the target driving mode. The effective frequency band is at least a partial frequency band of the driving frequency bandwidth; determine the target working frequency under the target driving mode based on the effective frequency band.

[0141] Optionally, determining the target operating frequency in the target driving mode based on the effective frequency band includes one or more of the following: determining a set frequency in the effective frequency band as the target operating frequency, where the set frequency includes multiple natural frequencies of the transducer; determining the center frequency of the effective frequency band as the target operating frequency; determining, among at least one set frequency in the effective frequency band, the set frequency with the smallest distance from the center frequency of the effective frequency band as the target operating frequency.

[0142] The multiple natural frequencies of the transducer may include a plurality. Exemplarily, the multiple natural frequencies of the transducer may include but are not limited to the series resonance frequency Fs, the resonance frequency Fr, the anti-resonance frequency Fa, the parallel resonance frequency Fp, the maximum admittance frequency Fm, and the minimum admittance frequency Fn, etc. The above natural frequencies are set frequencies of the transducer and are stored in advance, and the corresponding natural frequency values of different transducers may be different. Optionally, it is determined whether the above set frequencies are included in the effective frequency band. If the above set frequencies are included in the effective frequency band, any set frequency within the limited frequency band is determined as the target operating frequency.

[0143] Optionally, in the case where at least two set frequencies are included in the effective frequency band, the set frequency with the smallest distance from the center frequency of the effective frequency band may be determined as the target operating frequency, where the center frequency of the effective frequency band may be determined as the average of the maximum frequency and the minimum frequency of the effective frequency band.

[0144] Optionally, in the case where the set frequencies are not included in the effective frequency band, the center frequency of the effective frequency band is determined as the target operating frequency.

[0145] In this embodiment, in the case of determining the target driving mode applicable to the transducer and the target operating frequency in the target driving mode according to the actual working conditions of the transducer, the transducer is controlled to operate based on the target driving mode and the target operating frequency in the target driving mode, so that each working parameter of the transducer satisfies the working parameter conditions corresponding to the actual working conditions during the operation process.

[0146] The technical solution of this embodiment classifies the driving mode and load of the transducer respectively to obtain different driving modes of the transducer and different load types of the transducer. By analyzing the frequency response of the transducer under different driving modes and different load types, for the actual working conditions of the transducer, the target driving mode applicable to the transducer and the target operating frequency in the target driving mode are matched and determined among the frequency responses of the transducer under different driving modes and different load types, which mentions the method of setting the driving mode and operating frequency of the transducer based on human experience. The accuracy of the target driving mode and target operating frequency of the transducer is high, the interpretability is strong, and the dependence on human experience is reduced.

[0147] Figure 8 It is a schematic structural diagram of a device for determining the driving mode and operating frequency of a transducer provided by an embodiment of the present invention. As Figure 8 shown, the device includes:

[0148] A parameter acquisition module 210, which acquires the lumped equivalent circuit parameters of the transducer, constructs the lumped equivalent circuit model of the transducer and determines the driving frequency bandwidth;

[0149] A classification module 220, which is used to classify the driving modes of the transducer and classify different loads under various driving modes; or classify the loads of the transducer and classify different driving modes under various load types; determine the thresholds for each load type, where the loads of the transducer have at least two types;

[0150] A frequency response analysis module 230, which is used to analyze the frequency responses of the transducers with different loads under various driving modes; or analyze the frequency responses of the transducers with different driving modes under various load types;

[0151] A driving mode and operating frequency determination module 240, which is used to match the target driving mode applicable to the transducer and the target operating frequency under the target driving mode according to the actual working conditions and frequency responses.

[0152] The technical solution of this embodiment classifies the driving modes and loads of the transducer respectively to obtain different driving modes of the transducer and different load types of the transducer. By analyzing the frequency responses of the transducer under different driving modes and different load types, for the actual working conditions of the transducer, the target driving mode applicable to the transducer and the target operating frequency under the target driving mode are matched and determined among the frequency responses of the transducer under different driving modes and different load types, which mentions the method of setting the driving mode and operating frequency of the transducer based on human experience. The accuracy of the target driving mode and target operating frequency of the transducer is high, the interpretability is strong, and the dependence on human experience is reduced.

[0153] On the basis of the above embodiment, optionally, the lumped equivalent circuit parameters include static branch capacitance, dynamic branch capacitance, dynamic branch resistance, and dynamic branch inductance; the actual working conditions include the loads of the transducer in different application scenarios.

[0154] Optionally, the classification module 220 is specifically used to: classify the driving modes of the transducer into: constant voltage mode, constant current mode, constant power mode, and constant amplitude mode; and classify the loads under each driving mode into: no load, light load, light load, medium load, heavy load, and overweight load;

[0155] Optionally, the classification module 220 is specifically configured to: classify the load of the transducer into: no load, light load, medium load, heavy load, and overweight load; and classify the drive modes under each of the load types into: constant voltage mode, constant current mode, constant power mode, and constant amplitude mode.

[0156] Optionally, the frequency response of the transducer includes one or more of: output current, output voltage, active power, apparent power, and output amplitude.

[0157] Optionally, the frequency response analysis module 230 is specifically configured to: based on the known constant input current value and the apparent power, active power, output voltage, and output amplitude calculated from the total impedance when the drive mode is the constant current mode;

[0158] based on the known constant input voltage value and the apparent power, active power, output current, and output amplitude calculated from the total impedance when the drive mode is the constant voltage mode;

[0159] When the drive mode is the constant power mode, it includes: when the constant power mode is the constant apparent power, the output current, active power, output voltage, and output amplitude calculated based on the known constant input apparent power value and the total impedance; and when the constant power mode is the constant active power, the output current, apparent power, output voltage, and output amplitude calculated based on the known constant input active power and the total impedance;

[0160] When the drive mode is the constant amplitude mode, the output dynamic branch current, output voltage, output current, apparent power, and active power calculated based on the known constant input amplitude and the total impedance.

[0161] Optionally, the drive mode and operating frequency determination module 240 is specifically configured to:

[0162] If the frequency responses of the transducer under any of the drive modes for different load types all meet the working parameter conditions corresponding to the actual working condition, then determine the drive mode as the target drive mode and determine the target operating frequency within the drive frequency bandwidth.

[0163] Optionally, the drive mode and operating frequency determination module 240 is further configured to:

[0164] For each load type, determine the frequency response of the load type under different driving modes, match the working parameter conditions corresponding to the actual working conditions with the frequency responses of various load types under different driving modes respectively, and determine multiple driving modes corresponding to the frequency responses that meet the working parameter conditions corresponding to the actual working conditions and multiple working frequencies matched under the multiple driving modes as multiple target driving modes and multiple target working frequencies applicable to the transducer.

[0165] Optionally, the driving mode and working frequency determination module 240 is further configured to:

[0166] Based on the driving mode priority corresponding to the actual working conditions, sequentially match the working parameter conditions corresponding to the actual working conditions with the frequency responses of the load type under different driving modes until the target driving mode applicable to the transducer and the target working frequency point under the target driving mode are determined.

[0167] Optionally, the driving mode and working frequency determination module 240 is further configured to:

[0168] Determine the effective frequency band that meets the working parameter conditions corresponding to the actual working conditions under the target driving mode, and the effective frequency band is at least a partial frequency band of the driving frequency bandwidth;

[0169] Determine the target working frequency under the target driving mode based on the effective frequency band.

[0170] Optionally, the driving mode and working frequency determination module 240 is further configured to perform one or more of the following:

[0171] Determine the set frequency in the effective frequency band as the target working frequency, and the set frequency includes multiple natural frequencies of the transducer;

[0172] Determine the center frequency of the effective frequency band as the target working frequency;

[0173] Among at least one set frequency in the effective frequency band, determine the set frequency with the smallest distance from the center frequency of the effective frequency band as the target working frequency.

[0174] The driving mode and working frequency determination device of the transducer provided by the embodiments of the present invention can execute the driving mode and working frequency determination method of the transducer provided by any embodiment of the present invention, and has corresponding functional modules and beneficial effects for executing the method.

[0175] Figure 9This is a schematic structural diagram of an electronic device provided by an embodiment of the present invention. The electronic device 10 is intended to represent various forms of digital computers, such as laptop computers, desktop computers, workstations, personal digital assistants, servers, blade servers, mainframe computers, and other suitable computers. The electronic device can also represent various forms of mobile devices, such as personal digital processors, cellular phones, smart phones, wearable devices (such as helmets, glasses, watches, etc.) and other similar computing devices. The components shown herein, their connections and relationships, and their functions are merely examples and are not intended to limit the implementation of the present invention described and / or claimed herein.

[0176] As Figure 9 shown, the electronic device 10 includes at least one processor 11, and a memory communicatively connected to the at least one processor 11, such as a read-only memory (ROM) 12, a random access memory (RAM) 13, etc. The memory stores a computer program executable by the at least one processor. The processor 11 can perform various appropriate actions and processes according to the computer program stored in the read-only memory (ROM) 12 or the computer program loaded from the storage unit 18 into the random access memory (RAM) 13. In the RAM 13, various programs and data required for the operation of the electronic device 10 can also be stored. The processor 11, the ROM 12, and the RAM 13 are connected to each other through a bus 14. An input / output (I / O) interface 15 is also connected to the bus 14.

[0177] Multiple components in the electronic device 10 are connected to the I / O interface 15, including: an input unit 16, such as a keyboard, a mouse, etc.; an output unit 17, such as various types of displays, speakers, etc.; a storage unit 18, such as a magnetic disk, an optical disc, etc.; and a communication unit 19, such as a network card, a modem, a wireless communication transceiver, etc. The communication unit 19 allows the electronic device 10 to exchange information / data with other devices through a computer network such as the Internet and / or various telecommunication networks.

[0178] The processor 11 can be various general-purpose and / or special-purpose processing components with processing and computing capabilities. Some examples of the processor 11 include, but are not limited to, a central processing unit (CPU), a graphics processing unit (GPU), various dedicated artificial intelligence (AI) computing chips, various processors running machine learning model algorithms, a digital signal processor (DSP), and any appropriate processor, controller, microcontroller, etc. The processor 11 executes the various methods and processes described above, such as the method for determining the driving mode and operating frequency of the transducer.

[0179] In some embodiments, the method for determining the driving mode and operating frequency of a transducer can be implemented as a computer program tangibly embodied in a computer-readable storage medium, such as storage unit 18. In some embodiments, part or all of the computer program can be loaded and / or installed onto the electronic device 10 via the ROM 12 and / or the communication unit 19. When the computer program is loaded into the RAM 13 and executed by the processor 11, one or more steps of the method for determining the driving mode and operating frequency of the transducer described above can be performed. Alternatively, in other embodiments, the processor 11 can be configured to execute the method for determining the driving mode and operating frequency of the transducer by any other suitable means (e.g., by means of firmware).

[0180] The various embodiments of the systems and techniques described above in this document can be implemented in digital electronic circuitry, integrated circuit systems, field-programmable gate arrays (FPGAs), application-specific integrated circuits (ASICs), application-specific standard products (ASSPs), systems-on-a-chip (SOCs), complex programmable logic devices (CPLDs), computer hardware, firmware, software, and / or combinations thereof. These various embodiments can include: being implemented in one or more computer programs that can be executed and / or interpreted on a programmable system including at least one programmable processor, which can be a special-purpose or general-purpose programmable processor that can receive data and instructions from a storage system, at least one input device, and at least one output device, and transmit the data and instructions to the storage system, the at least one input device, and the at least one output device.

[0181] The computer program for implementing the method for determining the driving mode and operating frequency of the transducer of the present invention can be written in any combination of one or more programming languages. These computer programs can be provided to the processor of a general-purpose computer, a special-purpose computer, or other programmable data processing device, such that when the computer programs are executed by the processor, the functions / operations specified in the flowchart and / or block diagram are implemented. The computer programs can be executed entirely on the machine, partially on the machine, as a stand-alone software package partially on the machine and partially on a remote machine, or entirely on a remote machine or server.

[0182] Embodiments of the present invention also provide a computer-readable storage medium storing computer instructions for causing a processor to execute a method for determining the driving mode and operating frequency of a transducer, the method including:

[0183] Obtain the lumped equivalent circuit parameters of the transducer, construct the lumped equivalent circuit model of the transducer and determine the drive frequency bandwidth; classify the drive modes of the transducer and classify different loads under various drive modes; or classify the loads of the transducer and classify different drive modes under each load type; determine the threshold for each load type, where the load of the transducer has at least two load types; analyze the frequency responses of the transducers with different loads under various drive modes; or analyze the frequency responses of the transducers with different drive modes under various load types; match the target drive mode applicable to the transducer and the target operating frequency under the target drive mode according to the actual working conditions and the frequency responses.

[0184] In the context of the present invention, a computer-readable storage medium can be a tangible medium that can contain or store a computer program for use by or in connection with an instruction execution system, apparatus, or device. The computer-readable storage medium can include, but is not limited to, electronic, magnetic, optical, electromagnetic, infrared, or semiconductor systems, apparatus, or devices, or any suitable combination of the foregoing. Alternatively, the computer-readable storage medium can be a machine-readable signal medium. More specific examples of the machine-readable storage medium would include an electrical connection based on one or more wires, a portable computer diskette, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or Flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

[0185] In order to provide interaction with a user, the systems and techniques described herein can be implemented on an electronic device having: a display device (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor) for displaying information to the user; and a keyboard and a pointing device (e.g., a mouse or a trackball) by which the user can provide input to the electronic device. Other kinds of devices can also be used to provide interaction with the user; for example, the feedback provided to the user can be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and the input received from the user can be in any form (including acoustic input, voice input, or tactile input).

[0186] The systems and techniques described herein can be implemented in a computing system including backend components (e.g., as a data server), or a computing system including middleware components (e.g., an application server), or a computing system including frontend components (e.g., a user computer having a graphical user interface or a web browser through which a user can interact with an implementation of the systems and techniques described herein), or a computing system including any combination of such backend, middleware, or frontend components. The components of the system can be interconnected to each other by digital data communication in any form or medium (e.g., a communication network). Examples of communication networks include: local area network (LAN), wide area network (WAN), blockchain network, and the Internet.

[0187] A computing system can include a client and a server. The client and the server are generally remote from each other and typically interact through a communication network. The client-server relationship is created by computer programs running on respective computers and having a client-server relationship with each other. The server can be a cloud server, also known as a cloud computing server or a cloud host, which is a host product in the cloud computing service system, solving the defects of difficult management and weak business scalability existing in traditional physical hosts and VPS services.

[0188] It should be understood that various forms of the processes shown above can be used, steps can be reordered, added, or deleted. For example, the steps recited in the present invention can be executed in parallel, sequentially, or in a different order, as long as the desired results of the technical solution of the present invention can be achieved, and no limitation is made herein.

[0189] The above specific embodiments do not constitute a limitation on the protection scope of the present invention. Those skilled in the art should understand that various modifications, combinations, sub-combinations, and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A method for determining a driving mode and an operating frequency of a transducer, characterized in that: include: Acquire the lumped equivalent circuit parameters of the transducer, construct a lumped equivalent circuit model of the transducer and determine the driving frequency bandwidth; Classifying the driving modes of the transducer and classifying the different loads under each driving mode; or classifying the loads of the transducer and classifying the different driving modes under each load type; determining a threshold value for each load type, wherein the load of the transducer has at least two load types; Analyze the frequency response of a transducer with different loads under various drive modes; or analyze the frequency response of a transducer with different drive modes under various load types; A target driving mode suitable for the transducer and a target operating frequency under the target driving mode are matched according to actual working conditions and the frequency response.

2. The method according to claim 1, characterized in that The concentrated equivalent circuit parameters include static branch capacitance, dynamic branch capacitance, dynamic branch resistance and dynamic branch inductance; the actual working condition includes the load of the transducer in the application scenario.

3. The method according to claim 1 or 2, characterized in that: The driving modes of the transducer are classified and different loads under each driving mode are classified, including: the driving modes of the transducer are classified into: constant voltage mode, constant current mode, constant power mode, and constant amplitude mode; and the loads under each driving mode are classified into: no load, relatively light load, light load, medium load, heavy load, and overweight load; The load of the transducer is classified and the different driving modes under each load type are classified, including: classifying the load of the transducer into: no load, lighter load, light load, medium load, heavy load, and overweight load; and classifying the driving mode under each load type into: constant voltage mode, constant current mode, constant power mode, and constant amplitude mode.

4. The method according to any one of claims 1 to 3, characterized in that The frequency response of the transducer includes one or more of output current, output voltage, active power, apparent power and output amplitude.

5. The method according to claim 4, characterized in that The analysis of the frequency response of the transducer with different loads under various driving modes includes: When the driving mode is constant current mode, the apparent power, active power, output voltage and output amplitude are calculated based on the known constant input current value and total impedance; The apparent power, active power, output current and output amplitude calculated based on the known constant input voltage value and total impedance when the driving mode is the constant voltage mode; When the driving mode is the constant power mode, it includes: the output current, active power, output voltage and output amplitude calculated based on the known constant input apparent power value and the total impedance when the constant power mode is the constant apparent power; and the output current, apparent power, output voltage and output amplitude calculated based on the known constant input active power and the total impedance when the constant power mode is the constant active power; When the driving mode is the constant amplitude mode, the output dynamic branch current, output voltage, output current, apparent power and active power are calculated based on the known constant input amplitude and total impedance.

6. The method according to claim 1, characterized in that The matching of a target driving mode applicable to the transducer and a target operating frequency under the target driving mode according to the actual working condition and the frequency response includes: If the frequency responses of the transducer for different load types under any of the driving modes meet the working parameter conditions corresponding to the actual working condition, the driving mode is determined as the target driving mode, and the target operating frequency is determined within the driving frequency bandwidth.

7. The method according to claim 1, characterized in that The method further comprises: For each load type, the frequency response of the load type under the different driving modes is determined, and the frequency responses of each type of load under the different driving modes are matched respectively based on the working parameter conditions corresponding to the actual working conditions, and multiple driving modes corresponding to the frequency responses that meet the working parameter conditions corresponding to the actual working conditions and multiple operating frequencies matched under the multiple driving modes are determined as multiple target driving modes and multiple target operating frequencies suitable for the transducer.

8. The method according to claim 6 or 7, characterized in that: Matching the operating parameter conditions corresponding to the actual working conditions with the frequency responses of the load types under different driving modes respectively includes: Based on the driving mode priority corresponding to the actual working condition, the frequency responses of the load types under the different driving modes are matched respectively based on the working parameter conditions corresponding to the actual working condition, until a target driving mode suitable for the transducer and a target operating frequency point under the target driving mode are determined.

9. The method according to claim 6 or 7, characterized in that: The method further comprises: Determine an effective frequency segment that satisfies the working parameter condition corresponding to the actual working condition under the target driving mode, wherein the effective frequency segment is at least a partial frequency segment of the driving frequency bandwidth; A target operating frequency in the target driving mode is determined based on the effective frequency segment.

10. The method according to claim 9, characterized in that Determining the target operating frequency in the target driving mode based on the effective frequency range includes one or more of the following: Determining a set frequency in the effective frequency range as the target operating frequency, the set frequency including multiple natural frequencies of the transducer; Determining the center frequency of the effective frequency band as the target operating frequency; Among at least one set frequency in the effective frequency segment, a set frequency that has the shortest distance from a center frequency of the effective frequency segment is determined as the target operating frequency.

11. A device for determining a driving mode and an operating frequency of a transducer, characterized in that: include: A parameter acquisition module, which acquires the concentrated equivalent circuit parameters of the transducer, constructs a concentrated equivalent circuit model of the transducer and determines the driving frequency bandwidth; A classification module, for classifying the driving modes of the transducer and classifying different loads under each driving mode; or classifying the load of the transducer and classifying different driving modes under each load type; determining a threshold value for each load type, wherein the load of the transducer has at least two types; Frequency response analysis module, used to analyze the frequency response of transducers with different loads under various drive modes; or analyze the frequency response of transducers with different drive modes under various load types; The driving mode and operating frequency determination module is used to match a target driving mode suitable for the transducer and a target operating frequency under the target driving mode according to actual working conditions and frequency response.

12. An electronic device, characterized in that: The electronic device comprises: at least one processor; and a memory communicatively connected to the at least one processor; wherein, The memory stores a computer program executable by the at least one processor, and the computer program is executed by the at least one processor so that the at least one processor can execute the method for determining the driving mode and operating frequency of the transducer according to any one of claims 1 to 10.

13. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores computer instructions, and the computer instructions are used to enable a processor to implement the method for determining the driving mode and operating frequency of the transducer according to any one of claims 1 to 10 when the processor executes the instructions.

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