A method and device for determining a driving mode and a working frequency of a transducer, a storage medium and an electronic device

Abstract

The application discloses a transducer driving mode and working frequency determination method and device, a storage medium and electronic equipment. The method comprises the following steps: obtaining the lumped equivalent circuit parameters of the transducer, constructing a lumped equivalent circuit model of the transducer and determining the driving frequency bandwidth; 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 various load types; 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; and matching the target driving mode suitable for the transducer and the 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 accurate and have strong interpretability.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of ultrasonic equipment, and in particular to a transducer driving mode and working frequency determination method and device, a storage medium and electronic equipment. BACKGROUND

[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 hemostasis, welding, etc.

[0003] At present, the driving mode and working frequency of the transducer are set by human experience, which has strong dependence on human experience and poor interpretability, and the driving mode and working frequency are not accurately determined, which affects the working state of the transducer. SUMMARY

[0004] The present application provides a transducer driving mode and working frequency determination method, device, storage medium and electronic equipment, which improves the accuracy of the driving mode and working frequency of the transducer.

[0005] According to an aspect of the present application, a transducer driving mode and working frequency determination method is provided, comprising:

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

[0007] Classifying the driving mode 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;

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

[0009] Analyzing the frequency response of the transducer with different loads under each driving mode, or analyzing the frequency response of the transducer with different driving modes under each load type;

[0010] According to the actual working condition and the frequency response, a target driving mode and a target working frequency under the target driving mode suitable for the transducer are matched.

[0011] Optionally, the lumped 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 different application scenarios.

[0012] Optionally, the classifying the driving mode of the transducer and the classifying the different loads under each driving mode comprises: classifying the driving mode of the transducer into constant voltage mode, constant current mode, constant power mode and constant amplitude mode; and classifying the load under each driving mode into no load, light load, light-medium load, medium load, heavy load and super heavy load.

[0013] The classifying the load of the transducer and the classifying the different driving mode under each load type comprises: no load, light load, light-medium load, medium load, heavy load and super heavy load; and classifying the driving mode under each load type into constant voltage mode, constant current mode, constant power mode and constant amplitude mode.

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

[0015] Optionally, the analyzing the frequency response of the transducer with different loads under each driving mode comprises:

[0016] 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 constant current mode;

[0017] 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 constant voltage mode;

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

[0019] 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 constant amplitude mode.

[0020] Optionally, the matching the target driving mode and the target working frequency under the target driving mode suitable for the transducer according to the actual working condition and the frequency response comprises: if the frequency response of the transducer under each driving mode respectively for different load types all satisfies the working parameter condition corresponding to the actual working condition, determining the driving mode as the target driving mode and determining the target working frequency within the driving frequency bandwidth.

[0021] Optionally, the method further comprises: determining, for each load type, frequency responses of the load type under different drive modes, respectively matching the frequency responses of the load types under the different drive modes based on the working parameter condition corresponding to the actual working condition, and determining, as the target drive modes suitable for the transducer and the target working frequencies under the target drive modes, the drive modes and the working frequencies matched under the drive modes, which satisfy the working parameter condition corresponding to the actual working condition.

[0022] Optionally, the matching the frequency responses of the load types under the different drive modes based on the working parameter condition corresponding to the actual working condition comprises: sequentially matching the frequency responses of the load types under the different drive modes based on the working parameter condition corresponding to the actual working condition, based on the drive mode priority corresponding to the actual working condition, until the target drive mode suitable for the transducer and the target working frequency point under the target drive mode are determined.

[0023] Optionally, the method further comprises: determining an effective frequency segment of the target drive mode that satisfies the working parameter condition corresponding to the actual working condition, the effective frequency segment being at least a partial frequency segment of the drive frequency bandwidth; and determining the target working frequency of the target drive mode based on the effective frequency segment.

[0024] Optionally, the determining the target working frequency of the target drive mode based on the effective frequency segment comprises one or more of the following: determining a set frequency in the effective frequency segment as the target working frequency, the set frequency comprising a plurality of inherent frequencies of the transducer; determining a center frequency of the effective frequency segment as the target working frequency; and determining, as the target working frequency, a set frequency in the effective frequency segment that is closest to the center frequency of the effective frequency segment.

[0025] According to another aspect of the present application, a drive mode and working frequency determination device for a transducer is provided, comprising:

[0026] a parameter acquisition module configured to acquire lumped equivalent circuit parameters of the transducer, construct a lumped equivalent circuit model of the transducer, and determine a drive frequency bandwidth;

[0027] a classification module configured to classify drive modes of the transducer and classify different loads under each drive mode, or classify loads of the transducer and classify different drive modes under each load type, and determine a threshold value for each load type, wherein the loads of the transducer have at least two types;

[0028] a frequency response analysis module configured to analyze frequency responses of the transducer with different driving modes and different loads, or analyze frequency responses of the transducer with different loads and different driving modes;

[0029] a driving mode and working frequency determination module configured to determine a target driving mode and a target working frequency in the target driving mode of the transducer according to the actual working condition and the frequency responses.

[0030] According to another aspect of the present application, an electronic device is provided, which comprises:

[0031] at least one processor; and

[0032] a memory connected to the at least one processor in communication; 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 to enable the at least one processor to perform the driving mode and working frequency determination method of the transducer according to any one of the embodiments of the present application.

[0034] According to another aspect of the present application, a computer readable storage medium is provided, which stores computer instructions for enabling a processor to perform the driving mode and working frequency determination method of the transducer according to any one of the embodiments of the present application when executed by the processor.

[0035] the technical scheme of the embodiments of the present application,

[0036] By classifying the driving modes and the loads of the transducer respectively, different driving modes of the transducer and different load types of the transducer are obtained, and by analyzing the frequency responses of the transducer in different driving modes and different load types, the target driving mode and the target working frequency in the target driving mode of the transducer are determined according to the actual working condition of the transducer, which improves the way of setting the driving mode and the working frequency of the transducer based on human experience, and the target driving mode and the target working frequency of the transducer are accurate and have strong interpretability, 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 key or important features of the embodiments of the present application, nor to limit the scope of the present application. Other features of the present application will become apparent from the following description. BRIEF DESCRIPTION OF DRAWINGS

[0038] In order to make the technical solutions in the embodiments of the present application clearer, the accompanying drawings needed in the embodiment description will be briefly introduced as follows. Obviously, the accompanying drawings in the following description only represent some of the embodiments of the present application, and for those skilled in the art, other drawings can be obtained without any creative effort based on these drawings.

[0039] Figure 1 is a flow chart of a method for determining a driving mode and a working frequency of a transducer provided by the embodiments of the present application;

[0040] Figure 2 is a schematic diagram of a lumped equivalent circuit model of a transducer provided by the embodiments of the present application;

[0041] Figure 3 is a schematic diagram of frequency responses of various working parameters to a medium load in a constant current mode provided by the embodiments of the present application;

[0042] Figure 4 is a schematic diagram of frequency responses of various working parameters to an over-weight load in a constant voltage mode provided by the embodiments of the present application;

[0043] Figure 5 is a schematic diagram of frequency responses of various working parameters to a light load in a constant apparent power mode provided by the embodiments of the present application;

[0044] Figure 6 is a schematic diagram of frequency responses of various working parameters to a light load in a constant active power mode provided by the embodiments of the present application;

[0045] Figure 7 is a schematic diagram of frequency responses of various working parameters to a light load in a constant amplitude mode provided by the embodiments of the present application;

[0046] Figure 8 is a schematic structural diagram of a device for determining a driving mode and a working frequency of a transducer provided by the embodiments of the present application;

[0047] Figure 9 is a schematic structural diagram of an electronic device provided by the embodiments of the present application. DETAILED DESCRIPTION

[0048] In order to make the technical solutions in the embodiments of the present application clearer, the accompanying drawings needed in the embodiment description will be briefly introduced as follows. Obviously, the accompanying drawings in the following description only represent some of the embodiments of the present application, and for those skilled in the art, other drawings can be obtained without any creative effort based on these drawings.

[0049] It is to be understood that the terminology "first", "second" and the like used in the specification and the claims of the application as well as the appended drawings is merely intended to distinguish between similar objects and not necessarily to describe a particular sequential or chronological order. It is to be understood that the use of data "a", "an" and "the" included in this application are intended to cover both singular and plural data, unless otherwise indicated by the context. Furthermore, the use of the term "including", "having" and variants thereof in the detailed description and the claims is intended to cover inclusive and exclusive cases, for example, a process, method, system, product or device including a series of steps or units does not necessarily limit to those steps or units clearly listed, but can include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0050] Figure 1 is a flowchart of a method for determining a driving mode and a working frequency of a transducer provided by an embodiment of the application. The embodiment can be applicable to analyzing the frequency response of the transducer for different driving modes and different load types. The target driving mode and the target working frequency suitable for the transducer are determined according to the actual working condition and the frequency response of the transducer. The method can be executed by a driving mode and working frequency determination device of the transducer. The driving mode and working frequency determination device of the transducer can be realized in the form of hardware and / or software. The driving mode and working frequency determination device of the transducer can be configured in an electronic device, which includes but is not limited to a mobile terminal, a computer, a server and the like. The mobile terminal can be a device such as a mobile phone and a tablet computer. As shown in Figure 1 , the method comprises:

[0051] S110, acquiring the lumped equivalent circuit parameters of the transducer, constructing the lumped equivalent circuit model of the transducer and determining the driving frequency bandwidth.

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

[0053] S130, determining the threshold values of each load type, wherein the loads of the transducer have at least two load types.

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

[0055] S150, matching the target driving mode suitable for the transducer and the target working frequency under the target driving mode according to the actual working condition and the frequency response.

[0056] In this embodiment, the transducer can include an ultrasonic transducer, and the type of the transducer is not limited here. In order to facilitate the analysis of the driving mode and the working frequency of the transducer, a lumped equivalent circuit model of the transducer is constructed, wherein the lumped equivalent circuit model of the transducer is constructed based on 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 parameter detection of the transducer through an impedance analyzer or a bridge device, and specifically, the lumped equivalent circuit parameters of the transducer are detected in a set operating state. The set operating state can 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 in which the load of the transducer is less than a set load threshold.

[0057] For example, referring to Figure 2 , Figure 2 a schematic diagram of the lumped equivalent circuit model of the transducer provided in the embodiment of the present application. In the diagram, Figure 2 C S is the static branch capacitance of the transducer, d is the dynamic branch capacitance of the transducer, d is the dynamic branch inductance of the transducer, and d is the dynamic branch resistance of the transducer.

[0058] The driving frequency bandwidth of the transducer can be understood as the working frequency range of the transducer, which can be determined based on the resonance frequency of the transducer, and the resonance frequency can be taken as the center frequency of the working frequency range. Specifically, the working frequency range is determined based on the resonance frequency and a preset frequency expansion value, which can be understood as an allowed adjustment value of the driving frequency bandwidth relative to the resonance frequency. The maximum frequency value of the working frequency range is determined based on the sum of the resonance frequency and the preset frequency expansion value, and the minimum frequency value of the working frequency range is determined based on the difference between the resonance frequency and the preset frequency expansion value, and the frequency range between the maximum frequency value and the minimum frequency value forms the driving frequency bandwidth of the transducer.

[0059] The resonance frequency of the transducer can be determined based on the dynamic branch capacitance and the dynamic branch inductance, for example, the resonance frequency of the transducer can be represented as The preset frequency expansion value here can be pre-set and is not limited.

[0060] The working parameters of the transducer in the running state 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, the driving mode of the transducer based on a constant working parameter, the driving mode of the transducer is classified as: constant voltage mode, constant current mode, constant power mode and constant amplitude mode. Among them, the constant voltage mode can be understood as a driving mode that maintains the output voltage constant during the driving of the transducer, the constant current mode can be understood as a driving mode that maintains the output current constant during the driving of the transducer, the constant power mode can be understood as a driving mode that maintains the active power or apparent power constant during the driving of the transducer, and the constant amplitude mode can be understood as a driving mode that maintains the output amplitude constant during the driving of the transducer.

[0061] The transducer has different loads in different running processes, and the driving mode and working frequency required by the transducer for different loads can be different. In order to improve the accuracy of the driving mode and working frequency of the transducer, the load of the transducer is classified to obtain multiple load types of the transducer, and the transducer is analyzed respectively for different load types to improve the analysis accuracy and pertinence. Optionally, the load of the transducer includes at least two load types. Here, the number of load types is not limited, 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, relatively light load, light load, medium load, heavy load and super heavy load. The above classification method of load is only an example, which can be determined according to the classification requirement.

[0062] Optionally, the load classification can be based on the value of the dynamic branch resistance of the transducer in the running process. For example, the historical value of the dynamic branch resistance of the transducer in the historical running process can be obtained, the load range is determined based on the maximum value and the minimum value of the historical value of the dynamic branch resistance, and the load range is divided into at least two load types based on the uniform division method.

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

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

[0065] Optionally, the multiple classification thresholds are determined based on the impedance corresponding to the static branch capacitance, and the 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. For example, the load types include no-load, light load, light load, medium load, heavy load, and super heavy load. The multiple classification thresholds determined based on the impedance corresponding to the static branch capacitance can include 0, and wherein C S is the static branch capacitance of the transducer, w is the rotational angular velocity of the transducer, and is related to the operating frequency of the transducer, wherein w = 2pf, and f is the frequency.

[0066] In this embodiment, the classification timing of the driving mode and the load type is not limited. In some embodiments, the classification processing is performed on the driving mode and the load, respectively, and the driving mode and the load type are traversed to obtain multiple combinations of the driving mode and the load type.

[0067] In some embodiments, the driving mode of the transducer can be classified first, and then the load of the transducer is classified under each driving mode, i.e., the driving mode of the transducer is classified and the load under each driving mode is classified, including: the driving mode of the transducer is classified as: constant voltage mode, constant current mode, constant power mode, and constant amplitude mode; and the load under each driving mode is classified as: no-load, light load, light load, medium load, heavy load, and super heavy load.

[0068] In some embodiments, the load of the transducer can be classified first, and then the driving mode of the transducer is classified for each load type, i.e., the load of the transducer is classified and the driving mode under each load type is classified, including: the load of the transducer is classified as: no-load, light load, light load, medium load, heavy load, and super heavy load; and the driving mode under each load type is classified as: constant voltage mode, constant current mode, constant power mode, and constant amplitude mode.

[0069] For example, referring to Table 1, Table 1 is a correspondence between the driving 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 parameter, and in general cases, R l may be zero.

[0070] Table 1

[0071]

[0072] According to Table 1, the threshold values corresponding to the load types of no load, light load, light load, medium load, heavy load and overload in Table 1 are 0, and In this embodiment, the transducer is analyzed by taking the threshold value corresponding to the load type as the key feature point in the load range corresponding to the load type, thereby improving the accuracy of the analysis process.

[0073] In the case of classifying the driving mode and the load type, the frequency response of the transducer in any combination of driving mode and load type is determined, for example, the frequency response of the transducer with different loads in various driving modes, or the frequency response of the transducer with different driving modes in various load types. The frequency response here can be understood as the response value of the working parameter of the transducer with respect to each frequency value in the driving frequency bandwidth.

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

[0075] In the analysis process of the frequency response of the transducer in any driving mode and any load type, or the frequency response of the transducer in any load type and any driving mode, any driving mode can correspond to a constant working parameter and a plurality of to-be-determined working parameters. For example, in the constant voltage mode, the constant working parameter is the output voltage, and the to-be-determined working parameters include the output current, the active power, the apparent power and the output amplitude. For example, in the constant amplitude mode, the constant working parameter is the output amplitude, and the to-be-determined working parameters include the output current, the output voltage, the active power and the apparent power. Other driving modes are similar, and will not be described here.

[0076] In the process of determining the frequency response of the transducer, the total impedance corresponding to the constant working parameter and the load type in the driving mode is obtained, the frequency response relationship of the to-be-determined working parameter with respect to the load type is determined based on the conversion relationship between one or more of the to-be-determined working parameter and the constant working parameter and the total impedance, the to-be-determined working parameter being other working parameters except the constant working parameter, and the frequency response of the transducer in the driving mode and the load type is determined based on the frequency response relationship of the to-be-determined working parameter with respect to the load type and the driving frequency bandwidth.

[0077] Among them, the constant working parameter in the driving mode can be based on the maximum value of the working parameter that the transducer can provide. For example, in the constant current mode, the constant working parameter is the output current, and the 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 a static branch impedance determined based on a static branch capacitance Cs and a dynamic branch impedance determined based on a dynamic branch capacitance Cd, a dynamic branch inductance Ld, and a threshold value corresponding to the load type.

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

[0080] The conversion relationship between the to-be-determined operating parameter and the constant operating parameter includes a conversion relationship between the output voltage and the output current, a conversion relationship between the output amplitude and the output current, a conversion relationship between the active power and the output current, and a conversion relationship between the apparent power and the output current. The frequency response relationship of the to-be-determined operating parameter with respect to the load type is determined based on the conversion relationship between the to-be-determined operating parameter and the constant operating parameter, that is, a mapping relationship between the to-be-determined operating parameter and the frequency under each load type, for example, a mapping relationship between the output voltage and the frequency, a conversion relationship between the output amplitude and the frequency, a conversion relationship between the active power and the frequency, and a conversion relationship between the apparent power and the frequency. The frequency response of the transducer under the driving mode and the load type is determined based on the frequency response relationship of the to-be-determined operating parameter with respect to the load type and the driving frequency bandwidth.

[0081] For example, the current vector of the transducer is I(jw), the total impedance is Z(jw), the static branch impedance is Zs(jw), the dynamic branch impedance is Zd(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). a (jw), the static branch impedance is Z s (jw), the dynamic branch impedance is 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 capability of the ultrasonic power supply, the maximum and minimum threshold values of I(jw), U(jw), S(jw), and A(jw) can be determined, and the maximum and minimum threshold values of P(jw) can be determined according to actual application requirements.

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

[0083] The frequency response relationship of 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 of the output voltage is U(jw) = I(jw)Za (jw);

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

[0086] In constant current mode, the known constant input current and total impedance are obtained. Based on the known constant input current and total impedance, the frequency response of apparent power, active power, output amplitude, and output voltage is determined. Assume the transducer's maximum current amplitude is 0.5A, and the initial phase is 0° by default; assume the transducer's maximum voltage amplitude is 150V, and the initial phase is 0 by default; assume the transducer's maximum apparent power is 50W, maximum active power is 35W, and maximum amplitude is 100µm. The known constant input current value in constant current mode can be 0.5A. For any load type, taking a medium load as an example, the threshold corresponding to a medium load is... The total impedance is determined based on the threshold corresponding to the medium load, the static branch capacitance Cs, the dynamic branch capacitance Cd, and the dynamic branch capacitance Ld.

[0087] For example, see Figure 3 , Figure 3 This is a schematic diagram illustrating the frequency response of various operating parameters under constant current mode for a medium load, as provided in an embodiment of the present invention. Figure 3 Figure a shows the frequency response of the output voltage under constant current mode and medium load conditions. Figure 3 Figure b shows the frequency response of the output amplitude under constant current mode and medium load conditions. Figure 3 Figure c in the figure shows the frequency response of the apparent power under constant current mode and medium load conditions. Figure 3 The d-plot in the diagram shows the frequency response of active power under constant current mode and medium load conditions. It can be understood that the frequency response diagrams of the transducer under other load types in constant current mode are not shown here.

[0088] Similarly, in constant current mode, for each load type, the total impedance corresponding to that load type is determined. Based on the total impedance corresponding to that load type and the known constant input current value, the frequency response of the transducer's above-mentioned operating parameters under each load type in constant current mode is determined.

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

[0090] In the constant voltage mode, the constant operating parameter is the output voltage, and the conversion relationship between the to-be-determined operating parameter and the constant operating parameter 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 operating parameter with respect to the load type, that is, the mapping relationship between the to-be-determined operating parameter and the frequency under the load type, can 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] In the constant voltage mode, the frequency response relationship of the apparent power is:

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

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

[0094] The frequency response relationship of the output amplitude is: where n is the electromechanical conversion coefficient, and is a constant.

[0095] In the constant voltage mode, the known constant input voltage value and the total impedance are obtained, and the frequency responses of the apparent power, the active power, the output amplitude and the output current are 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 the known constant input voltage value is 150V, for example. For each load type, the total impedance corresponding to the load type is determined, and the frequency responses of the operating parameters of the transducer under each load type in the constant voltage mode are determined based on the total impedance corresponding to the load type and the known constant input voltage value.

[0096] For example, referring to Figure 4 , Figure 4 The frequency response of each operating parameter of the transducer under the constant voltage mode and the super heavy load is provided in the embodiment of the present application. In the embodiment of the present application, Figure 4 the a graph in FIG. 1 is the frequency response of the output current under the constant voltage mode and the super heavy load, Figure 4 the b graph in FIG. 1 is the frequency response of the output amplitude under the constant voltage mode and the super heavy load, Figure 4 the c graph in FIG. 1 is the frequency response of the apparent power under the constant voltage mode and the super heavy load, Figure 4 and the d graph in FIG. 1 is the frequency response of the active power under the constant voltage mode and the super heavy load. It can be understood that the frequency response of the transducer under other load types in the constant voltage mode is not shown here.

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

[0098] Under the constant apparent power, the constant operating parameter is the apparent power, and the conversion relationship between the to-be-determined operating parameter and the constant operating parameter includes 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 to-be-determined operating parameter is for the frequency response relationship of the load type, that is, the mapping relationship between the to-be-determined operating parameter and the frequency under each load type, which can include, for example, 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] Under the constant apparent power, the frequency response relationship of the output current is:

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

[0101] The frequency response relationship of 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 of the output amplitude is: Where n is the electromechanical conversion coefficient, and k is a constant.

[0103] Under the constant apparent power, the known constant input apparent power value and the total impedance are obtained, and the frequency response of the output voltage, the active power, the output amplitude and the output current is determined 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, and exemplarily, the known constant input apparent power value is 50 W. For each load type, the total impedance corresponding to the load type is determined, and the frequency response of each operating parameter of the transducer under the constant apparent power mode is determined based on the total impedance corresponding to the load type and the known constant input apparent power value.

[0104] Exemplarily, referring to Figure 5 , Figure 5 The frequency response diagram of each operating parameter of the transducer under the constant apparent power for a light load is provided. In the diagram Figure 5 , the diagram a is the frequency response of the output current under the constant apparent power and the light load, Figure 5Fig. b in FIG. 1 is a frequency response of the output amplitude of the transducer under constant apparent power and light load conditions, Figure 5 Fig. c in FIG. 1 is a frequency response of the output voltage of the transducer under constant apparent power and light load conditions, Figure 5 Fig. d in FIG. 1 is a frequency response of the active power of the transducer under constant apparent power and light load conditions. It can be understood that the frequency response of the transducer under other load types under constant apparent power is not shown here.

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

[0106] Under constant active power, the constant operating parameter is the active power, and the conversion relationship between the to-be-determined operating parameter and the constant operating parameter includes 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 relationship of the to-be-determined operating parameter with respect to the load type, i.e., the mapping relationship between the to-be-determined operating parameter and the frequency under the load type, can 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] 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: wherein n is the electromechanical conversion coefficient, and is a constant;

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

[0111] Under constant active power, the known constant input active power value and the total impedance are obtained, and the frequency responses of the output voltage, the apparent power, the output amplitude and the output current are determined 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. Illustratively, the known constant input active power value is 35 W. For each load type, the total impedance corresponding to the load type is determined, and the frequency responses of the above operating parameters of the transducer under each load type under constant active power mode are determined based on the total impedance corresponding to the load type and the known constant input active power value.

[0112] For example, refer to Figure 6 , Figure 6 The frequency response diagrams of various working parameters under constant active power for light load are provided for the embodiments of the present application. Among them Figure 6 a diagram in FIG. 1 is a frequency response diagram of output current under constant active power and light load, Figure 6 b diagram in FIG. 1 is a frequency response diagram of output amplitude under constant active power and light load, Figure 6 c diagram in FIG. 1 is a frequency response diagram of output voltage under constant active power and light load, Figure 6 d diagram in FIG. 1 is a frequency response diagram of apparent power under constant active power and light load. It can be understood that the frequency response diagrams of the transducer under other load types under constant active power are not shown here.

[0113] Optionally, the output dynamic branch current, the output voltage, the output current, the apparent power and the active power are calculated based on the known constant input amplitude and the total impedance when the driving mode is the constant amplitude mode.

[0114] In the constant amplitude mode, the constant working parameter is the output amplitude, and the conversion relationship between the to-be-determined working parameter and the constant working parameter includes the conversion relationship between the output current and the output amplitude, the conversion relationship between the apparent power and the output amplitude, the conversion relationship between the active power and the output amplitude, and the conversion relationship between the output voltage and the output amplitude. Correspondingly, the frequency response relationship of the to-be-determined working parameter with respect to the load type, i.e., the mapping relationship between the to-be-determined working parameter and the frequency under the load type, can include the mapping relationship between the output current and the frequency, the conversion relationship between the apparent power and the frequency, the conversion relationship between the active power and the frequency, and the conversion relationship between the output voltage and the frequency.

[0115] Among them, in the constant amplitude mode, the output dynamic branch current is:

[0116] The frequency response relationship corresponding to the output voltage is: 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 a total impedance are obtained, and a frequency response of an output voltage, an apparent power, an active power and an output current is determined based on the known constant input amplitude and the total impedance. For example, the known constant input amplitude is a maximum amplitude of the transducer, and an example is that the known constant input amplitude is 100 um. For each load type, a 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, a frequency response of each working parameter of the transducer under each load type in the constant amplitude mode is determined.

[0121] For example, referring to Figure 7 , Figure 7 A frequency response diagram of each working parameter of the transducer under the constant amplitude mode and a light load is provided for an embodiment of the present application. Among them Figure 7 a graph in FIG. 1 is a frequency response of an output current under the constant amplitude mode and a light load, Figure 7 a graph in FIG. 2 is a frequency response of an output amplitude under the constant amplitude mode and a light load, Figure 7 a graph in FIG. 3 is a frequency response of an output voltage under the constant amplitude mode and a light load, Figure 7 a graph in FIG. 4 is a frequency response of an apparent power under the constant amplitude mode and a light load. It can be understood that the frequency response diagram of the transducer under other load types in the constant amplitude mode is not shown here.

[0122] It should be noted that in the 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 working parameter of the transducer, wherein the frequency of the horizontal axis is the frequency within the driving frequency bandwidth. The frequency response of the transducer is displayed by a curve, which facilitates the determination of the change of the working parameter of the transducer with frequency.

[0123] It can be understood that for any transducer, the frequency response of the transducer under different load types in each driving model can be stored, so as to facilitate the calling of the stored frequency response in the running process of the transducer, the determination of the driving mode working frequency required in the running process, the reduction of the occupation of the calculation power and resources of the electronic device, and the repeated execution of the analysis process of the frequency response.

[0124] In the running process of the transducer, an actual working condition of the transducer is obtained, and a target driving mode suitable for the transducer and a target working frequency under the target driving mode are determined based on the actual working condition of the transducer and the frequency response of the transducer.

[0125] Optionally, the actual working condition includes an application scenario of the transducer and a load in the application scenario. The application scenario of the transducer includes, but is not limited to, ultrasonic welding, soft tissue cutting in the medical field, and the like. According to the actual working condition of the transducer, a target driving mode of the transducer and a target working frequency in the target driving mode are determined, and the transducer is controlled to operate in the target driving mode and the target working 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 scenario correspond to different working parameter conditions. The working parameter condition includes a normal value range corresponding to each working parameter of the transducer.

[0127] Optionally, the working parameter condition corresponding to the actual working condition is matched according to the application scenario in the actual working condition; or the application scenario and the load type corresponding to the actual working condition are determined according to the load in the application scenario in the actual working condition, and the working parameter condition corresponding to the actual working condition is matched based on the application scenario and the load type corresponding to the actual working condition.

[0128] Optionally, the target driving mode of the transducer and the target working frequency in the target driving mode are matched according to the actual working condition and the frequency response, including: the working parameter condition corresponding to the actual working condition is matched with the frequency response of each load type in different driving modes respectively, if the frequency response of the transducer in any driving mode respectively for different load types meets the working parameter condition corresponding to the actual working condition, the driving mode is determined as the target driving mode, and the target working frequency is determined within the driving frequency bandwidth.

[0129] For each driving mode, the frequency response of the transducer of different load types in the driving mode is matched with the working parameter condition corresponding to the actual working condition in the actual working condition (here, it can be the working parameter condition corresponding to the application scene of the actual working condition, or the working parameter condition corresponding to different load types in the application scene of the actual working condition). Specifically, the frequency response of the transducer of each load type in the driving mode is matched with the working parameter condition corresponding to the actual working condition in the actual working condition, to determine whether the frequency response of the transducer of each load type meets the working parameter condition corresponding to the actual working condition in the actual working condition. If the frequency response of the transducer of any load type in the driving model is within the normal numerical range corresponding to the working parameter condition corresponding to the actual working condition in the actual working condition, it is determined that the frequency response of the transducer of the load type meets the working parameter condition corresponding to the actual working condition in the actual working condition. It can be understood that the frequency response of the transducer of any load type in any driving model includes the frequency response of multiple working parameters; the working parameter condition corresponding to the actual working condition includes the normal numerical range corresponding to the multiple working parameters of the transducer, respectively. In any driving model, the frequency response of the transducer of any load type includes the frequency response of multiple working parameters, which meets the normal numerical range corresponding to the multiple working parameters included in the working parameter condition corresponding to the actual working condition, respectively. In any driving model, the frequency response of the transducer of the load type is determined to meet the working parameter condition corresponding to the actual working condition in the actual working condition.

[0130] The frequency response of the transducer in any of the driving modes meets the working parameter condition corresponding to the actual working condition for different load types, indicating that the driving mode can support the normal operation of the transducer under different load types, and the driving mode can be determined as the target driving mode of the transducer. Optionally, based on the driving mode priority corresponding to the actual working condition, the frequency response of different load types in multiple driving modes is matched based on the working parameter condition corresponding to the actual working condition, until the target driving mode is determined.

[0131] Optionally, the target working frequency is determined within the driving frequency bandwidth, including: determining the load type to which the load of the transducer in the actual working condition belongs, matching the working parameter condition corresponding to the actual working condition with the frequency response of the transducer of the load type in the target driving mode, determining the target driving mode and the effective frequency segment that meets the working parameter condition corresponding to the actual working condition under the load type, and determining the target working frequency in the target driving mode based on the effective frequency segment.

[0132] Specifically, in the target driving mode, a frequency response of each operating parameter of the transducer is determined to satisfy a frequency range corresponding to the operating parameter condition of the actual working condition, and an intersection of the frequency ranges respectively determined based on the frequency responses of the multiple operating parameters is taken as an effective frequency range. The effective frequency range is at least a partial frequency range of the driving frequency bandwidth, for example, the effective frequency range can be a global frequency range corresponding to the driving frequency bandwidth, or the effective frequency range can also be a partial frequency range in the global frequency range corresponding to the driving frequency bandwidth. The target operating frequency can be a set frequency in the effective frequency range, or the target operating frequency is determined in the effective frequency range based on a preset selection rule.

[0133] Optionally, for each load type, the frequency responses of the transducer under different driving modes are determined, the frequency responses of the transducer under different driving modes are matched based on the operating parameter condition corresponding to the actual working condition, and the driving modes and the operating frequencies matched in the driving modes corresponding to the frequency responses satisfying the operating parameter condition corresponding to the actual working condition are determined as the target driving modes and the target operating frequencies suitable for the transducer.

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

[0135] Optionally, the target driving mode and the target operating frequency under the target driving mode suitable for the transducer are matched according to the actual working condition and the frequency response, including: for the load type corresponding to the actual working condition, the frequency responses of the transducer under different driving modes are determined, the frequency responses of the transducer under different driving modes are matched based on the operating parameter condition corresponding to the actual working condition, and the driving mode and the operating frequency matched in the driving mode corresponding to the frequency response satisfying the operating parameter condition corresponding to the actual working condition are determined as the target driving mode and the target operating frequency point under the target driving mode suitable for the transducer.

[0136] The load of the transducer in the actual working condition is matched with the threshold (or load range) corresponding to multiple load types, and the load type corresponding to the actual working condition is determined. The frequency responses of the transducer under each driving mode under the load type corresponding to the actual working condition are matched with the operating parameter condition corresponding to the actual working condition, respectively, and the driving mode corresponding to the frequency response satisfying the operating parameter condition corresponding to the actual working condition is determined as the target driving mode corresponding to the load type corresponding to the actual working condition.

[0137] In some embodiments, in the case that the frequency response of each driving mode for different load types cannot all meet the working parameter condition corresponding to the actual working condition, the load type corresponding to the actual working condition is determined, the frequency response of each transducer under the load type is matched based on the working parameter condition corresponding to the actual working condition, and the target driving mode and the target working frequency of the transducer under the load type are obtained.

[0138] In the above embodiments, the matching of the working parameter condition corresponding to the actual working condition with the frequency response of the load type under the different driving modes respectively includes: based on the driving mode priority corresponding to the actual working condition, the working parameter condition corresponding to the actual working condition is sequentially matched with the frequency response of the load type under the different driving modes until the target driving mode suitable for the transducer and the target working frequency point under the target driving mode are determined.

[0139] 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, which can be pre-set and is not limited herein. For example, the priority of the constant amplitude mode, the constant current mode, the constant voltage mode, the constant active power mode and the constant apparent power mode corresponding to the actual working condition decreases in turn. The frequency response of the load type under the constant amplitude mode is matched based on the working parameter condition 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 condition corresponding to the actual working condition, the constant amplitude mode is determined as the target driving mode suitable for the transducer, and the traversal of other driving modes is stopped. If the frequency response of the transducer of the load type under the constant amplitude mode does not meet the working parameter condition corresponding to the actual working condition, the frequency response of the transducer of the load type under the constant current mode (i.e. the driving mode of the next priority) is matched based on the working parameter condition corresponding to the actual working condition, and the same is true for the subsequent driving modes until the target driving mode suitable for the transducer is determined.

[0140] In the case that the target driving mode is determined, the effective frequency range meeting the working parameter condition corresponding to the actual working condition under the target driving mode is determined, and the effective frequency range is at least a partial frequency range of the driving frequency bandwidth. The target working frequency under the target driving mode is determined based on the effective frequency range.

[0141] Optionally, determining the target working frequency in the target driving mode based on the effective frequency range comprises one or more of the following: determining a set frequency in the effective frequency range as the target working frequency, the set frequency comprising a plurality of inherent frequencies of the transducer; determining a center frequency of the effective frequency range as the target working frequency; determining a set frequency in the effective frequency range that is closest to the center frequency of the effective frequency range as the target working frequency.

[0142] The plurality of inherent frequencies of the transducer can comprise a plurality of, for example, the plurality of inherent frequencies of the transducer can comprise but are not limited to a series resonance frequency Fs, a resonance frequency Fr, an anti-resonance frequency Fa, a parallel resonance frequency Fp, a maximum admittance frequency Fm and a minimum admittance frequency Fn, etc. The above inherent frequencies are set frequencies of the transducer and are pre-stored, and the inherent frequency values corresponding to different transducers can be different. Optionally, it is determined whether the above set frequencies are included in the effective frequency range, and if the above set frequencies are included in the effective frequency range, any set frequency in the limited frequency range is determined as the target working frequency.

[0143] Optionally, in the case where at least two set frequencies are included in the effective frequency range, the set frequency that is closest to the center frequency of the effective frequency range can be determined as the target working frequency, wherein the center frequency of the effective frequency range can be determined as the average of the maximum frequency and the minimum frequency of the effective frequency range.

[0144] Optionally, in the case where no set frequency is included in the effective frequency range, the center frequency of the effective frequency range is determined as the target working frequency.

[0145] In the embodiment, in the case where the target driving mode suitable for the transducer and the target working frequency in the target driving mode are determined according to the actual working condition of the transducer, the transducer is controlled to operate based on the target driving mode and the target working frequency in the target driving mode, so that each working parameter of the transducer in the operation process meets the working parameter condition corresponding to the actual working condition.

[0146] The technical scheme of the embodiment classifies the driving modes and loads of the transducer respectively, obtains different driving modes of the transducer and different load types of the transducer, analyzes the frequency response of the transducer in different driving modes and different load types, and determines the target driving mode suitable for the transducer and the target working frequency in the target driving mode in the frequency response of the transducer in different driving modes and different load types according to the actual working condition of the transducer. The method of setting the driving mode and the working frequency of the transducer based on human experience is mentioned, the accuracy of the target driving mode and the target working frequency of the transducer is high, the interpretability is strong, and the dependence on human experience is reduced.

[0147] Figure 8 Figure 1 is a structural schematic diagram of a device for determining a driving mode and a working frequency of a transducer according to an embodiment of the present application. As shown in the figure, the device comprises: Figure 8

[0148] A parameter acquisition module 210 is configured to acquire lumped equivalent circuit parameters of the transducer, construct a lumped equivalent circuit model of the transducer, and determine a driving frequency bandwidth.

[0149] A classification module 220 is configured to 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, and determine threshold values of each load type, wherein the loads of the transducer have at least two types.

[0150] A frequency response analysis module 230 is configured to analyze the frequency responses of the transducer with different loads under each driving mode, or analyze the frequency responses of the transducer with different driving modes under each load type.

[0151] A driving mode and working frequency determination module 240 is configured to determine a target driving mode and a target working frequency under the target driving mode suitable for the transducer according to the actual working conditions and the frequency responses.

[0152] The technical solution of the embodiment classifies the driving modes and the loads of the transducer respectively, obtains different driving modes of the transducer and different load types of the transducer, analyzes the frequency responses of the transducer under different driving modes and different load types, and determines the target driving mode and the target working frequency under the target driving mode suitable for the transducer according to the actual working conditions and the frequency responses of the transducer under different driving modes and different load types. The technical solution eliminates the need for setting the driving mode and the working frequency of the transducer based on human experience, and improves the accuracy and interpretability of the target driving mode and the target working frequency of the transducer.

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

[0154] Optionally, the classification module 220 is specifically configured 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, medium load, heavy load, and super heavy load.

[0155] ​Optionally, the classification module 220 is specifically configured to classify the load of the transducer into no-load, light load, light load, medium load, heavy load, and super heavy load, and classify the driving mode under each load type 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, when the driving mode is constant current mode, calculate the apparent power, active power, output voltage, and output amplitude based on the known constant input current value and the total impedance;

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

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

[0160] When the driving mode is 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 the total impedance.

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

[0162] If the frequency response of the transducer under any of the driving modes for different load types respectively meets the working parameter condition corresponding to the actual working condition, the driving mode is determined as the target driving mode, and the target working frequency is determined within the driving frequency bandwidth.

[0163] Optionally, the driving mode and working 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 frequency response of each load type under the different driving modes based on the working parameter condition corresponding to the actual working condition respectively, and determine the multiple driving modes corresponding to the frequency response meeting the working parameter condition corresponding to the actual working condition and the multiple working frequencies matched under the multiple driving modes as the multiple target driving modes and the multiple target working frequencies suitable for 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 condition, match the frequency response of the load type under the different driving modes based on the working parameter condition corresponding to the actual working condition respectively in sequence until the target driving mode suitable for 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 segment meeting the working parameter condition corresponding to the actual working condition under the target driving mode, and the effective frequency segment is at least a partial frequency segment of the driving frequency bandwidth.

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

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

[0171] Determine a set frequency in the effective frequency segment as the target working frequency, and the set frequency includes multiple inherent frequencies of the transducer.

[0172] Determine the center frequency of the effective frequency segment as the target working frequency.

[0173] Determine the set frequency in the effective frequency segment having the minimum distance from the center frequency of the effective frequency segment as the target working frequency.

[0174] The driving mode and working frequency determination apparatus of the transducer provided by the embodiment of the present application can perform the driving mode and working frequency determination method of the transducer provided by any embodiment of the present application, and has the function modules and beneficial effects corresponding to the execution method.

[0175] Figure 9This is a schematic diagram of the structure of an electronic device provided in 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 may also represent various forms of mobile devices, such as personal digital processors, cellular phones, smartphones, 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 illustrative and are not intended to limit the implementation of the invention described and / or claimed herein.

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

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

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

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

[0180] Various implementations of the systems and techniques described above can be realized in digital electronic circuitry, integrated circuitry, specially designed application specific integrated circuits (ASICs), field programmable gate arrays (FPGAs), computer hardware, firmware, software, and / or combinations thereof. These various implementations can include implementation in one or more computer programs that are executable and / or interpretable on a programmable system including at least one programmable processor, which can be special or general purpose, coupled to receive data and instructions from, and to transmit data and instructions to, a storage system, at least one input device, and at least one output device.

[0181] Computer programs used to implement the drive mode and operating frequency determination method of the transducer of the present application can be written in any combination of one or more programming languages. These computer programs can be provided to a processor of a general purpose computer, special purpose computer, or other programmable data processing apparatus to produce a machine, such that the computer program running on the processor implements the functions / operations specified in the flow charts and / or the block diagrams. The computer program can execute entirely on a machine, partly on the machine, as a stand-alone software package, partly on the machine and partly on a remote machine or entirely on the remote machine or server.

[0182] Embodiments of the present application also provide a computer readable storage medium, which stores computer instructions for causing a processor to execute a drive mode and operating frequency determination method of a transducer, the method comprising:

[0183] Obtaining lumped equivalent circuit parameters of a transducer, constructing a lumped equivalent circuit model of the transducer and determining a driving frequency bandwidth; classifying driving modes of the transducer and classifying different loads under each driving mode; or classifying loads of the transducer and classifying different driving modes under each load type; determining threshold values of each load type, wherein the loads of the transducer have at least two load types; analyzing frequency responses of the transducer with different loads under each driving mode; or analyzing frequency responses of the transducer with different driving modes under each load type; matching a target driving mode and a target operating frequency under the target driving mode applicable to the transducer according to actual working conditions and the frequency responses.

[0184] In the context of the present application, 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. A computer-readable storage medium can include, but is not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any suitable combination of the foregoing. Alternatively, a computer-readable storage medium can be a machine-readable signal medium. More specific examples of a machine-readable storage medium will include one or more lines of a program of instructions in a transitory signal, 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] To provide for interaction with a user, the systems and techniques described here 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 be used to provide for interaction with a user as well; for example, feedback provided to the user can be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user can be received in any form, including acoustic, speech, or tactile input.

[0186] The systems and techniques described herein can be implemented in a computing system that includes a back end component, e.g., as a data server, or that includes a middleware component, e.g., an application server, or that includes a front end component, 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 any combination of such back end, middleware, or front end components. The components of the system can be interconnected by any form or medium of digital data communication, e.g., a communication network. Examples of communication networks include a local area network (LAN), a wide area network (WAN), a blockchain network, and the Internet.

[0187] The computing system can include clients and servers. A client and server are generally remote from each other and typically interact through a communication network. The relationship of client and server arises by virtue of computer programs running on the respective computers and having a client-server relationship to each other. A server can be a cloud server, also known as a cloud computing server or cloud host, which is a host product in the cloud computing service system, to solve the defects of large management difficulty and weak business scalability in traditional physical host and VPS service.

[0188] It should be understood that the various forms of flow shown above can be re-ordered, added to, or deleted from without departing from the scope of the present disclosure. For example, the steps recited in the present disclosure can be executed in parallel, executed in sequence, or executed in different orders, as long as the desired results of the technical solutions of the present disclosure can be achieved, and the present disclosure is not limited herein.

[0189] The above detailed description does not constitute a limitation on the protection scope of the present application. 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 replacements, and improvements made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A method of determining a drive mode and operating frequency of a transducer, characterized by, The method comprises: acquiring lumped equivalent circuit parameters of a transducer, constructing a lumped equivalent circuit model of the transducer, and determining a driving frequency bandwidth; classifying driving modes of the transducer and classifying different loads under each driving mode, or classifying loads of the transducer and classifying different driving modes under each load type; determining threshold values of each load type, wherein the loads of the transducer have at least two load types; analyzing frequency responses of the transducer with different loads under each driving mode, or analyzing frequency responses of the transducer with different driving modes under each load type; matching a target driving mode and a target operating frequency under the target driving mode suitable for the transducer according to actual working conditions and the frequency responses.

2. The method of claim 1, wherein, The lumped equivalent circuit parameters comprise static branch capacitance, dynamic branch capacitance, dynamic branch resistance, and dynamic branch inductance; and the actual working conditions comprise loads of the transducer in application scenarios.

3. The method of claim 1 or 2, wherein the classifying driving modes of the transducer and classifying different loads under each driving mode comprises: 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 driving mode into no load, lighter load, light load, medium load, heavy load, and super heavy load; the classifying loads of the transducer and classifying different driving modes under each load type comprises: classifying the loads of the transducer into no load, lighter load, light load, medium load, heavy load, and super heavy load; and classifying the driving modes 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 1-3, characterized in that, The frequency responses of the transducer comprise one or more of output current, output voltage, active power, apparent power, and output amplitude.

5. The method of claim 4, wherein, The analyzing frequency responses of the transducer with different loads under each driving mode comprises: when the driving mode is constant current mode, calculating apparent power, active power, output voltage, and output amplitude based on a known constant input current value and total impedance; when the driving mode is constant voltage mode, calculating apparent power, active power, output current, and output amplitude based on a known constant input voltage value and total impedance; when the driving mode is constant power mode, comprising: when the constant power mode is constant apparent power, calculating output current, active power, output voltage, and output amplitude based on a known constant input apparent power value and total impedance; and when the constant power mode is constant active power, calculating output current, apparent power, output voltage, and output amplitude based on a known constant input active power and total impedance; when the driving mode is constant amplitude mode, calculating output dynamic branch current, output voltage, output current, apparent power, and active power based on a known constant input amplitude and total impedance.

6. The method of claim 1, wherein, The target driving mode and the target working frequency in the target driving mode suitable for the transducer are matched according to the actual working condition and the frequency response, comprising: If the frequency response of the transducer in any driving mode respectively for different load types meets the working parameter condition corresponding to the actual working condition, the driving mode is determined as the target driving mode, and the target working frequency is determined within the driving frequency bandwidth.

7. The method of claim 1, wherein, The method further comprises: For each load type, the frequency response of the load type in different driving modes is determined, the working parameter condition corresponding to the actual working condition is matched with the frequency response of each load type in different driving modes respectively, and the driving mode corresponding to the frequency response meeting the working parameter condition corresponding to the actual working condition and the working frequency matched in the driving mode are determined as the target driving mode and the target working frequency suitable for the transducer.

8. The method according to claim 6 or 7, characterized in that, The working parameter condition corresponding to the actual working condition is matched with the frequency response of the load type in different driving modes respectively, comprising: The working parameter condition corresponding to the actual working condition is matched with the frequency response of the load type in different driving modes respectively based on the driving mode priority corresponding to the actual working condition, and the target driving mode and the target working frequency in the target driving mode suitable for the transducer are determined until the target driving mode and the target working frequency in the target driving mode suitable for the transducer are determined.

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

10. The method of claim 9, wherein, The target working frequency in the target driving mode is determined based on the effective frequency segment, comprising one or more of the following: A set frequency in the effective frequency segment is determined as the target working frequency, and the set frequency comprises a plurality of inherent frequencies of the transducer; A center frequency of the effective frequency segment is determined as the target working frequency; At least one set frequency in the effective frequency segment, which is closest to the center frequency of the effective frequency segment, is determined as the target working frequency.

11. A device for determining the driving mode and operating frequency of a transducer, characterized in that, Comprise: A parameter acquisition module acquires the lumped equivalent circuit parameters of the transducer, constructs a lumped equivalent circuit model of the transducer, and determines a driving frequency bandwidth; A classification module classifies the driving modes of the transducer and classifies different loads in each driving mode, or classifies the loads of the transducer and classifies different driving modes in each load type, and determines a threshold value of each load type, wherein the loads of the transducer have at least two types; A frequency response analysis module is configured to analyze the frequency response of the transducer with different loads in each driving mode, or analyze the frequency response of the transducer with different driving modes in each load type; A frequency response analysis module is configured to analyze the frequency response of the transducer with different loads in each driving mode, or analyze the frequency response of the transducer with different driving modes in each load type; A driving mode and working frequency determination module is configured to determine a target driving mode and a target working frequency in the target driving mode suitable for the transducer according to actual working conditions and frequency response matching.

12. An electronic device, comprising: The electronic device comprises: at least one processor; and a memory connected to the at least one processor in communication; 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 to enable the at least one processor to execute the driving mode and working frequency determination method of the transducer according to any one of claims 1-10.

13. A computer-readable storage medium, characterized in that, The computer readable storage medium stores computer instructions for enabling the processor to implement the driving mode and working frequency determination method of the transducer according to any one of claims 1-10 when executed.

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