Automatic calibration method, device, equipment, system and storage medium

Abstract

The invention discloses an automatic calibration method, device, equipment, system and a storage medium. The automatic calibration method comprises the following steps: acquiring a plurality of initial calibration coefficients, a plurality of set input signal parameters and a plurality of theoretical output powers; determining an initial calibration signal parameter group corresponding to each initial calibration coefficient according to each initial calibration coefficient and a plurality of set input signal parameters, so as to send each initial calibration signal parameter group to the to-be-calibrated device; obtaining a plurality of output power groups; and according to each output power in each output power group and the theoretical output power corresponding to each output power, determining a target calibration coefficient of the to-be-calibrated device in the plurality of initial calibration coefficients. According to the invention, the automatic calibration of the to-be-calibrated equipment can be realized, and the calibration precision and the calibration efficiency can be improved.

Description

Technical Field

[0001] The present application relates to the field of data processing technology, and in particular to an automatic calibration method, apparatus, device, system and storage medium. Background Art

[0002] A power amplifier (PA) consists of multiple analog components, such as transformers, inductors, and operational amplifiers. The parameters of these components inevitably vary. This can cause a discrepancy between the actual output power of the PA and the set parameters when combined into a power amplifier. Therefore, the PA needs to be calibrated to ensure that the actual output power matches the set parameters.

[0003] Currently, power amplifier calibration involves measuring the actual output power of the amplifier using an oscilloscope, manually calculating the calibration coefficients, and then programming the coefficients into the amplifier's program to complete the calibration. However, this manual calibration method is time-consuming and leads to low productivity. Therefore, improving calibration efficiency is a key issue that needs to be addressed. Summary of the Invention

[0004] The present application provides an automatic calibration method, apparatus, device, system and storage medium, which are beneficial to improving the calibration accuracy and calibration efficiency of the device to be calibrated.

[0005] In a first aspect, the present application provides an automatic calibration method, comprising:

[0006] Acquiring a plurality of initial calibration coefficients, a plurality of set input signal parameters, and a plurality of theoretical output powers; wherein the plurality of set input signal parameters correspond one-to-one to the plurality of theoretical output powers;

[0007] Determining, based on each of the initial calibration coefficients and the plurality of set input signal parameters, an initial calibration signal parameter group corresponding to each of the initial calibration coefficients, so as to send each initial calibration signal parameter to the device to be calibrated; the initial calibration signal parameter group includes a plurality of initial calibration signal parameters; and the plurality of initial calibration signal parameters correspond one-to-one to the plurality of set input signal parameters;

[0008] Acquire multiple output power groups; the output power groups include multiple output powers; the multiple output powers in the same output power group correspond one-to-one to the multiple initial calibration signal parameters in the same initial calibration signal parameter group;

[0009] According to each of the output powers in each of the output power groups and the theoretical output power corresponding to each of the output powers, a target calibration coefficient of the device to be calibrated is determined from a plurality of the initial calibration coefficients.

[0010] Optionally, before obtaining the multiple initial calibration coefficients, the method further includes:

[0011] Obtaining an initial coefficient reference value and multiple set coefficient ratios;

[0012] A plurality of the initial calibration coefficients are obtained according to the initial coefficient reference value and the plurality of the setting coefficient ratios; the plurality of the setting coefficient ratios correspond one-to-one to the plurality of the initial calibration coefficients.

[0013] Optionally, obtain the initial coefficient reference value, including:

[0014] Acquire an input frequency group and the plurality of set input signal parameters, wherein the input frequency group includes at least one input frequency;

[0015] determining a target setting input signal parameter from the plurality of setting input signal parameters;

[0016] traversing the at least one input frequency, and sending the traversed input frequency and the target setting input signal parameter to the device to be calibrated, so that the device to be calibrated outputs an initial output signal;

[0017] Acquiring a voltage signal and a current signal, wherein the voltage signal and the current signal are both determined based on the initial output signal;

[0018] determining an initial output power based on the voltage signal and the current signal;

[0019] Providing the initial output power to the device to be calibrated, so that the device to be calibrated determines the initial coefficient reference value based on the initial output power;

[0020] When the at least one input frequency is traversed, the set input signal parameters other than the target set input signal parameters among the multiple set input signal parameters are determined as the target set input signal parameters; and the steps of determining the target set input signal parameters among the multiple set input signal parameters to providing the initial output power to the device to be calibrated are repeated until the multiple set input signal parameters are all determined as the target set input signal parameters.

[0021] Optionally, the device to be calibrated is configured to: determine multiple initial output power groups based on each of the initial output powers; each of the initial output power groups corresponds to a set input signal parameter; each of the initial output power groups includes at least one initial output power, and at least one of the initial output powers in the same initial output power group corresponds one-to-one to at least one of the input frequencies; determine an initial calibration parameter group corresponding to each of the set input signal parameters based on each of the initial output power groups and the corresponding theoretical output power to obtain multiple initial calibration parameter groups; each of the initial calibration parameter groups includes at least one initial calibration parameter, and at least one of the initial calibration parameter in the same initial calibration parameter group corresponds one-to-one to at least one of the input frequencies; and determine the initial coefficient reference value based on multiple initial calibration parameter groups.

[0022] Optionally, determining an initial calibration parameter group corresponding to each of the set input signal parameters according to each of the initial output power groups and the corresponding theoretical output power includes:

[0023] Obtaining an initial calibration parameter group corresponding to each of the set input signal parameters according to each initial output power in each initial output power group and the theoretical output power corresponding to each initial output power group;

[0024] The determining the initial coefficient reference value according to the plurality of initial calibration parameter groups includes:

[0025] The median of the initial calibration parameters included in the multiple initial calibration parameter groups is used as the initial coefficient reference value.

[0026] Optionally, determining, based on each of the initial calibration coefficients and a plurality of the set input signal parameters, an initial calibration signal parameter group corresponding to each of the initial calibration coefficients includes:

[0027] Obtaining a plurality of actual input voltage parameters according to each of the initial calibration coefficients and a plurality of the set input signal parameters; each of the set input signal parameters corresponds to one of the actual input voltage parameters;

[0028] According to each of the initial calibration coefficients and the multiple actual input voltage parameters, multiple actual input frequency parameters are obtained, and each actual input voltage parameter corresponds to one actual input frequency parameter; the initial calibration signal parameters include the actual input voltage parameters and the actual input frequency parameters.

[0029] Optionally, determining a target calibration coefficient for the device to be calibrated from a plurality of initial calibration coefficients according to each output power in each output power group and the theoretical output power corresponding to each output power includes:

[0030] Determining a parameter to be screened corresponding to each output power group according to each output power of each output power group and the theoretical output power corresponding to each output power;

[0031] According to the parameters to be screened corresponding to each of the output power groups, a target calibration coefficient of the device to be calibrated is determined from the multiple initial calibration coefficients.

[0032] Optionally, determining the parameter to be screened corresponding to each output power group according to each output power of each output power group and the theoretical output power corresponding to each output power includes:

[0033] Calculating each of the output powers in each of the output power groups, and a power error of the theoretical output power corresponding to each of the output powers;

[0034] According to each of the power errors, a parameter to be screened corresponding to each of the output power groups is determined.

[0035] Optionally, the parameters to be screened include median and / or root mean square;

[0036] Determining a target calibration coefficient of the device to be calibrated from the plurality of initial calibration coefficients according to the parameters to be screened corresponding to each output power group includes at least one of the following:

[0037] using the initial calibration coefficient corresponding to the parameter to be screened with the smallest median among the parameters to be screened corresponding to each output power group as the target calibration coefficient of the device to be calibrated; or

[0038] using the initial calibration coefficient corresponding to the parameter to be screened with the smallest root mean square among the parameters to be screened corresponding to each output power group as the target calibration coefficient of the device to be calibrated; or

[0039] The initial calibration coefficient corresponding to the parameter to be screened with the smallest average value of the median and the root mean square among the parameters to be screened corresponding to each output power group is used as the target calibration coefficient of the device to be calibrated.

[0040] Optionally, after determining the target calibration coefficient of the device to be calibrated from the multiple initial calibration coefficients, the method further includes:

[0041] Determining a plurality of verification calibration signal parameters according to the target calibration coefficient and the plurality of set input signal parameters, so as to send the plurality of verification calibration signal parameters to the device to be calibrated; wherein the plurality of verification calibration signal parameters correspond one-to-one to the plurality of set input signal parameters;

[0042] Acquire a plurality of verification output powers; wherein the plurality of verification output powers correspond one-to-one to the plurality of verification calibration signal parameters;

[0043] determining whether the automatic calibration of the device to be calibrated is qualified according to the multiple verified output powers and the multiple theoretical output powers;

[0044] When the automatic calibration of the device to be calibrated passes, the target calibration coefficient is sent to the device to be calibrated, so that the device to be calibrated works under the calibration of the target calibration coefficient.

[0045] Optionally, determining whether the automatic calibration of the device to be calibrated is qualified according to the multiple verified output powers and the multiple theoretical output powers includes:

[0046] Determining a qualified output power from the plurality of verified output powers; the difference between the qualified output power and the corresponding theoretical output power satisfies a first condition;

[0047] determining a target ratio based on the number of the qualified output powers and the number of the verified output powers;

[0048] When the target ratio is greater than or equal to the preset ratio, determining that the automatic calibration of the device to be calibrated is qualified;

[0049] When the target ratio is less than the preset ratio, a warning message is output; wherein the warning message is used to prompt the feedback module of the device to be calibrated to detect the need.

[0050] In a second aspect, the present application provides an automatic calibration device, comprising:

[0051] A first acquisition module is configured to acquire a plurality of initial calibration coefficients, a plurality of set input signal parameters, and a plurality of theoretical output powers; the plurality of set input signals correspond one to one with the plurality of theoretical output powers;

[0052] a first determining module, configured to determine, based on each of the initial calibration coefficients and the plurality of set input signal parameters, an initial calibration signal parameter group corresponding to each of the initial calibration coefficients, so as to send each initial calibration signal parameter to the device to be calibrated; the initial calibration signal parameter group including the plurality of initial calibration signal parameters; and the plurality of initial calibration signal parameters corresponding one-to-one to the plurality of set input signal parameters;

[0053] A second acquisition module is configured to acquire a plurality of output power groups, wherein the output power groups include a plurality of output powers, and the plurality of output powers in the same output power group correspond one-to-one to the plurality of initial calibration signal parameters in the same initial calibration signal parameter group;

[0054] A second determination module is configured to determine a target calibration coefficient of the device to be calibrated from a plurality of initial calibration coefficients according to each output power in each output power group and the theoretical output power corresponding to each output power.

[0055] In a third aspect, the present application provides an automatic calibration device, comprising: a processing module and a storage module, wherein the storage module stores operation instructions executable by the processing module, so that the processing module executes any one of the automatic calibration methods described above.

[0056] Optionally, the automatic calibration device further includes: a parameter acquisition module;

[0057] The parameter acquisition module is electrically connected to the processing module; the parameter acquisition module is used to collect the output signal of the device to be calibrated and send the output signal of the device to be calibrated to the processing module, so that the processing module can determine the output power of the device to be calibrated based on the output signal.

[0058] Optionally, the automatic calibration device further includes a first communication interface and a second communication interface;

[0059] The processing module is electrically connected to the parameter acquisition module via the first communication interface, and is electrically connected to the device to be calibrated via the second communication interface.

[0060] In a fourth aspect, the present application provides a device system to be calibrated, comprising: a device to be calibrated and any one of the automatic calibration devices described above.

[0061] In a fifth aspect, the present application provides a computer storage medium, wherein the computer-readable storage medium stores computer instructions, and the computer instructions are used to enable a processor to implement any of the above-mentioned automatic calibration methods when executed.

[0062] The technical solution of the present application obtains multiple initial calibration coefficients, multiple set input signal parameters, and multiple theoretical output powers, and then determines the initial calibration signal parameter group corresponding to each initial calibration coefficient based on each initial calibration coefficient and the multiple set input signal parameters, so as to send each initial calibration signal parameter group to the device to be calibrated, and obtains multiple output power groups, each output power group corresponds to an initial calibration signal parameter group, each output power group includes multiple output powers, and the multiple output powers in the output power group correspond one-to-one to the multiple initial calibration signal parameters in the initial calibration signal parameter group. Finally, according to each output power in each output power group and the theoretical output power corresponding to each output power, the target calibration coefficient of the device to be calibrated is determined from the multiple initial calibration coefficients. In this way, automatic calibration of the device to be calibrated can be achieved, which is beneficial to improving the calibration efficiency and calibration accuracy of the device to be calibrated. At the same time, by determining the initial calibration signal parameter group corresponding to each initial calibration coefficient and obtaining multiple output power groups, the target calibration coefficient of the device to be calibrated is determined from the multiple initial calibration coefficients based on each output power in each output power group and the theoretical output power corresponding to each output power, thereby helping to improve the calibration accuracy of the device to be calibrated.

[0063] It should be understood that the content described in this section is not intended to identify the key or important features of the embodiments of the present application, nor is it intended to limit the scope of the present application. Other features of the present application will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0064] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0065] Figure 1 is a schematic diagram of a device to be calibrated in the prior art;

[0066] Figure 2 A flowchart of an automatic calibration method provided in an embodiment of the present application;

[0067] Figure 3 A flowchart of another automatic calibration method provided in an embodiment of the present application;

[0068] Figure 4 A flowchart of another automatic calibration method provided in an embodiment of the present application;

[0069] Figure 5 A flowchart of another automatic calibration method provided in an embodiment of the present application;

[0070] Figure 6 A schematic diagram of the structure of the automatic calibration device provided in an embodiment of the present application;

[0071] Figure 7 A structural block diagram of an automatic calibration device provided in an embodiment of the present application;

[0072] Figure 8 This is a structural block diagram of an automatic calibration system provided in an embodiment of the present application. DETAILED DESCRIPTION

[0073] It should be understood that the examples and illustrations in this application are for illustrative purposes, and that deviations and variations may be constructed and deployed according to the teachings of this application without departing from the scope of this application. Before describing in detail at least one embodiment of the present application, it should be understood that this application is not necessarily limited to the details of the construction and arrangement of the components and / or methods set forth in the following description and / or illustrated in the drawings and / or examples. This application is capable of other embodiments or can be practiced or implemented in different ways.

[0074] Unless otherwise defined, all technical and / or scientific terms used in this application have the same meanings as those of ordinary skill in the art to which this application belongs. Although methods and materials similar to those described in this application or equivalent can be used to practice or test the embodiment of the application, exemplary methods and / or materials are described below. In the event of a conflict, the present application specification (including definitions) shall prevail. In addition, these materials, methods and embodiments are only illustrative and are not intended to be necessarily restricted.

[0075] In the description of this application, the terms "first", "second", etc. are only used to distinguish the description and have no special meaning.

[0076] Figure 1 The schematic diagram of the device to be calibrated in the prior art. Figure 1As shown, the device to be calibrated is, for example, a power amplifier, which includes a first single-chip microcomputer, a digital-to-analog converter (DAC), a signal generator, a signal amplifier, a load, a current sampling module, and a voltage sampling module. The load can be an ablation device, such as an ultrasonic generator or a pulsed electric field ablation device, which is not specifically limited here. When the power amplifier is operating, the first single-chip microcomputer provides a set DC voltage signal to the signal amplifier via the DAC, and provides a square wave signal of a set frequency to the signal amplifier via the signal generator. After receiving the DC voltage signal and the square wave signal, the signal amplifier adjusts the amplitude of the square wave signal using the DC voltage signal, amplifies the amplitude-adjusted square wave signal, and then transmits the amplified square wave signal to the load. The load converts the amplified square wave signal into a sinusoidal wave signal as the output signal of the power amplifier. The voltage sampling module samples the output signal, and the current sampling module samples the output signal. The sampled voltage and current signals are then output to the first single-chip microcomputer, allowing the first single-chip microcomputer to calculate the actual output power of the load.

[0077] In one optional embodiment, the power amplifier further includes a third communication interface electrically connected to the first single-chip microcomputer for communication between the first single-chip microcomputer and an external device (e.g., a host computer). In another optional embodiment, the power amplifier further includes an electrically erasable programmable read-only memory (EEPROM) for storing parameters related to the power amplifier.

[0078] In general, the actual output power of the load and the set DC voltage signal and output frequency provided by the DAC should have a linear relationship P(out) = af(v,f), or a quadratic function relationship P(out) = af(v 2 ,f). Where P(out) is the actual output power, a is the adjustment coefficient, v is the voltage of the DC voltage signal provided by the DAC, and f is the output frequency. Because both the signal amplifier and the load are composed of many analog components, each of which may have errors, this can lead to significant errors in the signal amplifier and load. Therefore, the adjustment coefficient a will vary for each power amplifier, requiring individual calibration of each power amplifier.

[0079] Currently, the calibration steps for the power amplifier are as follows:

[0080] 1. Based on the power amplifier circuit design and theoretical calculations, a table is developed to show the relationship between the voltage value v and frequency value f of each DC voltage signal and the desired theoretical output power P1, P2, P3, ..., Pn. It is understood that at different frequencies f, as long as the DC voltage signal voltage value v is set to be the same, the theoretical output power may be the same. For example, taking the DC voltage signal voltage values ​​v of 1V, 2V, 3V, 4V, and 5V, and the output frequency values ​​f of 5MHz, 6MHz, and 7MHz, a table is established between v and f, as shown in Table 1.

[0081] Table 1. Power amplifier calibration parameters

[0082]

[0083] 2. After the DAC provides the voltage value v and the signal generator provides the frequency value f, the actual output power of the load is measured using a power calculation device, such as an oscilloscope or power meter. For example, as shown in Table 1, assuming that the voltage value of the set DC voltage signal provided by the DAC has an adjustment range of 1 to 5V and a frequency range of 5MHz to 7MHz, calibration can be performed every 1V and / or 1MHz. For example, the voltage can be varied while the frequency remains unchanged, or the voltage can be kept unchanged while the frequency is varied to obtain the actual output power P1-5MHz to P3-7MHz. This completes the calibration of all parameter combinations.

[0084] 3. By comparing the actual output power P' measured by the power calculation device with the corresponding expected theoretical output power P, the calibration coefficient an under different parameter combinations is calculated, where an = P' / P.

[0085] 4. Calculate the median a of the calibration coefficients an under different parameter combinations, and use the median a as the calibration coefficient to control the output of the power amplifier.

[0086] 5. The calibration coefficient obtained in step 4 is verified using the parameter combination shown in Table 1. In some embodiments, it is verified whether the error between the actual output power of the load output and the theoretical output power of the expected output is within a first expected error range. According to the current collected by the current acquisition module of the power amplifier and the voltage collected by the voltage sampling module, the actual output power is obtained, and whether the error between the determined output power and the expected output power is within a second expected error range. If both of the above are within the corresponding expected error range, a can be used as the calibration coefficient of the power amplifier to control the output of the power amplifier during the subsequent use of the power amplifier. If at least one is not within the corresponding expected error range, it is necessary to detect the hardware circuit of the power amplifier.

[0087] The above calibration steps are all manually operated, which is labor-intensive, low in efficiency, and prone to errors, thereby causing inaccurate output of the power amplifier.

[0088] To solve the above technical problems, the embodiment of the present application obtains multiple initial calibration coefficients, multiple set input signal parameters, and multiple theoretical output powers, and then determines the initial calibration signal parameter group corresponding to each initial calibration coefficient based on each initial calibration coefficient and the multiple set input signal parameters, so as to provide each initial calibration signal parameter group to the device to be calibrated, and obtains multiple output power groups, each output power group corresponds to an initial calibration signal parameter group, each output power group includes multiple output powers, and the multiple output powers in the output power group correspond one-to-one to the multiple initial calibration signal parameters in the initial calibration signal parameter group. Finally, according to each output power in each output power group and the theoretical output power corresponding to each output power, the target calibration coefficient of the device to be calibrated is determined from the multiple initial calibration coefficients. In this way, automatic calibration of the device to be calibrated can be achieved, which is beneficial to improving the calibration efficiency and calibration accuracy of the device to be calibrated. At the same time, by determining the initial calibration signal parameter group corresponding to each initial calibration coefficient and obtaining multiple output power groups, and then according to each output power in each output power group and the theoretical output power corresponding to each output power, the target calibration coefficient of the device to be calibrated is determined from the multiple initial calibration coefficients, thereby helping to improve the calibration accuracy of the device to be calibrated.

[0089] The above is the core concept of this application. Based on the embodiments of this application, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of this application. The following will clearly and completely describe the technical solutions in the embodiments of this application in conjunction with the accompanying drawings.

[0090] In one possible implementation, Figure 2 This is a flow chart of an automatic calibration method provided in an embodiment of the present application. This embodiment is applicable to the case where the device to be calibrated is automatically calibrated. The method can be executed by an automatic calibration device, which can be implemented in the form of hardware and / or software. The automatic calibration device can be configured in the processing module of the automatic calibration device. Figure 2 As shown, the method includes:

[0091] S110 , obtaining a plurality of initial calibration coefficients, a plurality of set input signal parameters, and a plurality of theoretical output powers.

[0092] The plurality of set input signal parameters correspond one to one with the plurality of theoretical output powers.

[0093] The initial calibration coefficient is a pre-calibration coefficient that has been predetermined for the device to be calibrated. In one optional embodiment, the initial calibration coefficient is determined by pre-calibrating the device to be calibrated. In another optional embodiment, the initial calibration coefficient can also be determined based on experience. This embodiment does not specifically limit the method for obtaining the initial calibration coefficient.

[0094] Setting input signal parameters can be understood as the initial DC voltage signal parameters used when calibrating the device to be calibrated. In some embodiments, when the DC voltage signal of the device to be calibrated has an adjustment range of 1 to 5V, the initial DC voltage signal parameters can be 1V, 2V, 3V, 4V, or 5V, meaning calibration is performed every 1V. In an alternative embodiment, calibration can also be performed every 0.5V. It should be noted that the more and more precise the initial DC voltage signal parameters, the more accurate the calibration of the device to be calibrated.

[0095] The theoretical output power is the power that the device to be calibrated is expected to output under set input signal parameters. In an optional embodiment, the theoretical output power is obtained by the device to be calibrated. For example, the device to be calibrated can be a power amplifier.

[0096] S120 , determining an initial calibration signal parameter group corresponding to each initial calibration coefficient according to each initial calibration coefficient and a plurality of set input signal parameters, and providing each initial calibration signal parameter group to the device to be calibrated.

[0097] Each initial calibration signal parameter group includes multiple initial calibration signal parameters, each of which corresponds one-to-one to multiple set input signal parameters. Each initial calibration coefficient and each set input signal parameter can be used to determine an initial calibration parameter. The multiple initial calibration parameters determined by the same initial calibration coefficient and multiple set input signal parameters constitute an initial calibration signal parameter group.

[0098] S130: Acquire multiple output power groups.

[0099] Each output power group corresponds to an initial calibration signal parameter group, each output power group includes multiple output powers, and the multiple output powers in the output power group correspond one-to-one to the multiple initial calibration signal parameters in the initial calibration signal parameter group.

[0100] Optionally, obtaining the multiple output power groups includes providing initial calibration parameters to the device to be calibrated, and obtaining the multiple output power groups based on a test output signal output by the device to be calibrated.

[0101] In some embodiments, after providing initial calibration signal parameters to the device to be calibrated, the device to be calibrated uses the initial calibration signal parameters as input signals, performs power amplification, and outputs a test output signal. The test output signal can be used to determine a current signal and / or a voltage signal, thereby determining the corresponding output power based on the current signal and / or voltage signal. It will be understood that each initial calibration signal parameter corresponds to a test output signal, and thus each initial calibration parameter corresponds to an output power.

[0102] In an optional embodiment, the test output signal output by the device to be calibrated is received by a power calculation device, such as an oscilloscope or a power meter, so that the power calculation device outputs a current signal and / or a voltage signal according to the test output signal.

[0103] S140 : Determine a target calibration coefficient of the device to be calibrated from a plurality of initial calibration coefficients according to each output power of each output power group and a theoretical output power corresponding to each output power.

[0104] It is understandable that the closer the actual output power of the device to be calibrated is to the theoretical output power, the better. Therefore, when the output power is closer to its corresponding theoretical output power, the corresponding initial calibration coefficient can be used as the calibration coefficient of the device to be calibrated.

[0105] In an optional embodiment, the initial calibration coefficients corresponding to the output powers in the same output power group are the same. Through the output powers of the same output power group and the theoretical output powers corresponding to the output powers, the output power group in each output power group whose output power has the smallest difference with the corresponding theoretical output power can be determined, so that the initial calibration coefficient corresponding to the output power group can be used as the target calibration coefficient of the device to be calibrated.

[0106] After obtaining multiple initial calibration coefficients, multiple set input signal parameters, and multiple theoretical output powers, an initial calibration signal parameter is determined based on each initial calibration coefficient and each set input signal parameter. The initial calibration signal parameter determined by the same initial calibration coefficient and the multiple set input signal parameters constitute an initial calibration signal parameter group, and each initial calibration signal parameter group is sent to the device to be calibrated. After providing each initial calibration signal parameter in the initial calibration signal parameter group to the device to be calibrated, the device to be calibrated uses the initial calibration signal parameter as an input signal and outputs a test output signal, thereby obtaining multiple output power groups based on the test output signal. Each output power group corresponds to an initial calibration signal parameter group, and each output power group includes multiple output powers. The multiple output powers in the output power group correspond one-to-one to the multiple initial calibration signal parameters in the initial calibration parameter group. Since the initial calibration coefficients corresponding to the same output power group are the same, the target calibration coefficient of the device to be calibrated can be determined in each initial calibration coefficient based on the output powers of the same output power group and the theoretical output powers corresponding to each output power, which helps to improve the calibration accuracy of the device to be calibrated.

[0107] In this embodiment, by obtaining multiple initial calibration coefficients, multiple set input signal parameters, and multiple theoretical output powers, and then determining the initial calibration signal parameter group corresponding to each initial calibration coefficient based on each initial calibration coefficient and the multiple set input signal parameters, so as to provide each initial calibration signal parameter group to the device to be calibrated, and obtaining multiple output power groups, each output power group corresponds to an initial calibration signal parameter group, each output power group includes multiple output powers, and the multiple output powers in the output power group correspond one-to-one to the multiple initial calibration signal parameters in the initial calibration signal parameter group. Finally, according to each output power in each output power group and the theoretical output power corresponding to each output power, the target calibration coefficient of the device to be calibrated is determined from the multiple initial calibration coefficients. In this way, automatic calibration of the device to be calibrated can be achieved, which is beneficial to improving the calibration efficiency and calibration accuracy of the device to be calibrated. At the same time, by determining the initial calibration signal parameter group corresponding to each initial calibration coefficient and obtaining multiple output power groups, and then according to each output power in each output power group and the theoretical output power corresponding to each output power, the target calibration coefficient of the device to be calibrated is determined from the multiple initial calibration coefficients, which helps to improve the calibration accuracy of the device to be calibrated.

[0108] In one possible implementation, Figure 3This is a flowchart of another automatic calibration method provided by an embodiment of the present application. Based on the above embodiment, this embodiment further adds steps on how to obtain the initial calibration coefficient, how to determine the initial calibration signal parameter group corresponding to each initial calibration coefficient based on each initial calibration coefficient and multiple set input signal parameters, and how to determine the target calibration coefficient of the device to be calibrated from multiple initial calibration coefficients based on each output power in each output power group and the theoretical output power corresponding to each output power. Figure 3 As shown, the automatic calibration method specifically includes:

[0109] S210: Obtain an initial coefficient reference value and a plurality of set coefficient ratios.

[0110] The initial coefficient reference value a can be understood as the reference value of multiple initial calibration coefficients, that is, the multiple initial calibration coefficients are determined based on the initial coefficient reference value a. The set coefficient ratio is the ratio of the initial coefficient reference value a, such as 98%, 99%, 100%, 101%, 102%, etc. The set coefficient ratio can be determined based on the calibration accuracy requirements of the device to be calibrated. The greater the number of set coefficient ratios and the denser the ratio intervals, the higher the calibration accuracy of the device to be calibrated. Conversely, the fewer the number of set coefficient ratios and the sparser the ratio intervals, the lower the calibration accuracy of the device to be calibrated.

[0111] S220 , obtaining a plurality of initial calibration coefficients according to the initial coefficient reference value and a plurality of set coefficient ratios.

[0112] The multiple setting coefficient ratios correspond one-to-one to the multiple initial calibration coefficients.

[0113] In an optional embodiment, the product of the initial coefficient reference value and a plurality of set coefficient ratios is used as the plurality of initial calibration coefficients. The plurality of set coefficient ratios corresponds one-to-one to the plurality of initial calibration coefficients, i.e., the plurality of initial calibration coefficients are the product of the initial coefficient reference value and the plurality of set ratio coefficients. For example, if the plurality of set ratio coefficients are 98%, 99%, 100%, 101%a, and 102%, the plurality of initial calibration coefficients are 98%a, 99%a, 100%a, 101%a, and 102%a, respectively.

[0114] S230: Acquire multiple set input signal parameters and multiple theoretical output powers.

[0115] The plurality of set input signal parameters correspond one to one with the plurality of theoretical output powers.

[0116] S240 , obtaining a plurality of actual input voltage parameters according to each initial calibration coefficient and a plurality of set input signal parameters.

[0117] Each set input signal parameter corresponds to an actual input voltage parameter.

[0118] The actual input voltage parameters are the actual input voltage parameters supplied to the device being calibrated. If the device being calibrated is a power amplifier, the analog components within the amplifier may have errors, resulting in significant errors. To eliminate or reduce these errors, the set input signal parameters must be adjusted. The adjusted input voltage parameters are the actual input voltage parameters.

[0119] In an optional embodiment, the actual input voltage parameter is a product of an initial calibration coefficient and a set input signal parameter.

[0120] S250 , obtaining multiple actual input frequency parameters according to each initial calibration coefficient and multiple actual input voltage parameters.

[0121] Each actual input voltage parameter corresponds to an actual input frequency parameter. The initial calibration signal parameters include the actual input voltage parameter and the actual input frequency parameter.

[0122] When the device to be calibrated is a power amplifier, the output power of the power amplifier has a linear or quadratic function relationship with the input voltage and frequency parameters, that is, P(out) = af(v,f) or P(out) = af(v 2 ,f), where P(out) is the output power, a is the calibration coefficient, v is the voltage parameter, and f is the frequency parameter. Therefore, when the output power is constant, the actual input frequency is related to the initial calibration coefficient and the actual input voltage parameter. Thus, multiple actual input frequency parameters can be obtained based on each initial calibration coefficient and multiple actual input voltages.

[0123] S260: Acquire multiple output power groups.

[0124] Each output power group corresponds to an initial calibration signal parameter group, and each output power group includes multiple output powers; the multiple output powers in the output power group correspond one-to-one to the multiple initial calibration signal parameters in the initial calibration signal parameter group.

[0125] S270: Determine the parameters to be screened corresponding to the output power group according to the output powers and theoretical output powers of the same output power group.

[0126] The parameters to be screened may be understood to include parameters related to each output power and each theoretical output power.

[0127] In an optional embodiment, S270 includes: calculating a power error between each output power in each output power group and a corresponding theoretical output power; and determining a parameter to be screened corresponding to each output power group according to each power error.

[0128] In some embodiments, the power error is the absolute value of the difference between the output power corresponding to the same set input signal and the theoretical output power.

[0129] In an optional embodiment, the parameter to be screened includes a median and / or a root mean square determined based on each power error corresponding to the same output power group.

[0130] In an optional embodiment, after determining the parameters to be screened corresponding to each output power group based on each power error, it also includes: deleting the initial calibration coefficients corresponding to the parameters to be screened whose medians are greater than the preset medians, and / or deleting the initial calibration coefficients corresponding to the parameters to be screened whose root mean square is greater than the preset root mean square, so that when the target calibration coefficient of the device to be calibrated is determined from the initial calibration coefficients based on the parameters to be screened corresponding to each determined output power group, the determined target calibration coefficient is more accurate, thereby helping to further improve the calibration accuracy of the device to be calibrated.

[0131] S280 , determining a target calibration coefficient of the device to be calibrated from a plurality of initial calibration coefficients according to the parameters to be screened corresponding to the output power groups.

[0132] Since the parameters to be screened corresponding to each output power group include the median and / or root mean square determined based on the power error corresponding to the output power group, the parameters to be screened corresponding to each output power group can reflect the difference between the output power of the output power group and the theoretical output power. Among them, the smaller the difference between the output power and the theoretical output power, the higher the calibration accuracy of the device to be calibrated may be. Therefore, the target calibration coefficient of the device to be calibrated can be determined from multiple initial calibration coefficients based on the parameters to be screened corresponding to each output power group.

[0133] In an optional embodiment, the parameters to be screened include medians determined based on power errors corresponding to the same test power group; S280 includes: using the initial calibration coefficient corresponding to the parameter to be screened with the smallest median among the parameters to be screened corresponding to each output power group as the target calibration coefficient for the device to be calibrated. In this way, when the device to be calibrated provides an input signal based on the determined target calibration coefficient for the device to be calibrated, the actual output power of the device to be calibrated is closer to the theoretical output power, thereby potentially improving the calibration accuracy of the device to be calibrated.

[0134] In another optional embodiment, the parameters to be screened include root mean squares (RMSs) determined based on power errors corresponding to the same output power group; S280 includes the following step: using the initial calibration coefficient corresponding to the parameter to be screened with the smallest RMS among the parameters to be screened corresponding to each output power group as the target calibration coefficient for the device to be calibrated. In this way, when the device to be calibrated provides an input signal based on the determined target calibration coefficient for the device to be calibrated, the actual output power of the device to be calibrated is closer to the theoretical output power, thereby potentially improving the calibration accuracy of the device to be calibrated.

[0135] In another optional embodiment, the parameters to be screened include medians and root mean squares (RMSs) determined based on power errors corresponding to the same output power group. S280 includes: using the initial calibration coefficient corresponding to the parameter to be screened with the smallest average value of the median and the RMSs among the parameters to be screened corresponding to each output power group as the target calibration coefficient for the device to be calibrated. This helps further improve the calibration accuracy of the device to be calibrated.

[0136] S290 , determining a plurality of verification calibration signal parameters according to the target calibration coefficient and a plurality of set input signal parameters, and sending each verification calibration signal parameter to the device to be calibrated.

[0137] The multiple verification calibration signal parameters correspond one-to-one to the multiple set input signal parameters. The verification calibration signal parameters are input signals to the device to be calibrated when verifying whether the target calibration coefficient is qualified. In an optional embodiment, multiple actual input voltage parameters are obtained based on the target calibration coefficient and the multiple set input signal parameters, each set input signal parameter corresponding to an actual input voltage parameter; multiple actual input frequency parameters are obtained based on the target calibration coefficient and the multiple actual input voltage parameters, each actual input voltage parameter corresponding to an actual input frequency parameter; and the verification calibration parameters include the actual input voltage parameters and the actual input frequency parameters.

[0138] S2100. Obtain multiple verification output powers.

[0139] Among them, the multiple verification output powers correspond one-to-one to the multiple verification calibration signal parameters.

[0140] In at least one embodiment, after the verification calibration signal parameters are sent to the device to be calibrated, the device to be calibrated uses the verification calibration signal parameters as input signals, performs power amplification, and outputs a verification output signal, wherein the verification output signal can determine a verification current signal and / or a verification voltage signal, and thus, based on the verification current signal and / or the verification voltage signal, the corresponding verification output power can be determined. It is understood that each verification calibration signal parameter corresponds to a verification output signal, and thus each verification calibration signal corresponds to a verification output power. The verification output signal input by the device to be calibrated is received by the power calculation device, so that the power calculation device outputs a verification current signal and a verification voltage signal based on the verification output signal.

[0141] S2110. Determine whether automatic calibration of the device to be calibrated is qualified based on the multiple verified output powers and the multiple theoretical output powers.

[0142] The smaller the difference between the verified output power and the corresponding theoretical output power, the more accurate the calibration of the device to be calibrated is, and the more likely it is that the automatic calibration of the device to be calibrated is qualified. Therefore, whether the automatic calibration of the device to be calibrated is qualified can be determined based on multiple verified output powers and multiple theoretical output powers.

[0143] S2120: When the automatic calibration of the device to be calibrated passes, the target calibration coefficient is sent to the device to be calibrated, so that the device to be calibrated works under the calibration of the target calibration coefficient.

[0144] After determining the target calibration coefficient, multiple verification calibration signal parameters are determined based on the target calibration coefficient and multiple set input signal parameters. Each verification calibration signal parameter is then provided to the device to be calibrated, so that the device to be calibrated uses each verification calibration signal as an input signal, performs power amplification, and outputs a verification output signal, thereby obtaining multiple verification output powers based on the verification output signal. A determination is then made as to whether the device to be calibrated has passed automatic calibration based on the multiple verification output powers and the corresponding theoretical output powers. If the device to be calibrated has passed automatic calibration, the target calibration coefficient is sent to the device to be calibrated, so that the device to be calibrated operates under the calibration of the target calibration coefficient, thereby facilitating accurate output of the device to be calibrated.

[0145] In this embodiment, by obtaining an initial coefficient reference value and multiple set coefficient ratios, and then obtaining multiple initial calibration coefficients based on the initial coefficient reference value and the multiple set coefficient ratios, the initial calibration coefficients are made more accurate. By obtaining multiple actual input voltage parameters based on each initial calibration coefficient and multiple set input signal parameters, and then obtaining multiple actual input frequency parameters based on each initial calibration coefficient and the multiple actual input voltage parameters, each initial calibration signal parameter can be obtained. After obtaining multiple output power groups, the parameters to be screened corresponding to each output power group are determined according to the output powers of each output power group and the theoretical output powers corresponding to each output power, and the target calibration coefficient of the device to be calibrated is determined from multiple initial calibration coefficients according to the parameters to be screened corresponding to each output power group, so that when the device to be calibrated provides an input signal based on the determined target calibration coefficient of the device to be calibrated, the actual output power of the device to be calibrated is closer to the theoretical output power, that is, it is beneficial to further improve the calibration accuracy of the device to be calibrated; after determining the target calibration coefficient of the device to be calibrated, multiple verification calibration signals are determined according to the target calibration coefficient and multiple set input signal parameters, and each verification calibration signal is sent to the device to be calibrated, and then multiple verification output powers are obtained to determine whether the automatic calibration of the device to be calibrated is qualified according to the multiple verification output powers and the multiple theoretical output powers, thereby determining whether there is any abnormality in the device to be calibrated itself, which is beneficial to ensure that the device to be calibrated can output accurately.

[0146] In one possible implementation, Figure 4 This is a flow chart of another automatic calibration method provided by an embodiment of the present application. Based on the above embodiment, this embodiment further adds a step of how to obtain the initial coefficient reference value. Figure 4 As shown, the automatic calibration method specifically includes:

[0147] S310: Acquire an input frequency group and a plurality of set input signal parameters.

[0148] The input frequency group includes at least one input frequency. An input frequency can be understood as a frequency input when calibrating the device to be calibrated. For example, when the frequency range of the device to be calibrated is 5 MHz to 7 MHz, the input frequency group can include any one or more frequencies between 5 MHz and 7 MHz, such as 5 MHz, 6 MHz, and 7 MHz.

[0149] S320: Determine a target setting input signal parameter from a plurality of setting input signal parameters.

[0150] The target setting input signal parameters are the setting input signal parameters that are currently required to be provided to the device to be calibrated. The target setting input signal parameters may be selected randomly, from a plurality of setting input signal parameters in a forward-to-backward order, or from a plurality of setting input signal parameters in a backward-to-frontward order, without limitation herein.

[0151] S330: traverse at least one input frequency, and send the traversed input frequency and target setting input signal parameters to the device to be calibrated, so that the device to be calibrated outputs an initial output signal.

[0152] After the traversed input frequency and target setting input signal parameters are sent to the device to be calibrated, the device to be calibrated uses the input frequency and target setting input signal parameters as input signals and outputs an initial output signal.

[0153] S340: Acquire voltage and current signals.

[0154] Wherein, the voltage signal and the current signal are both determined based on the initial output signal.

[0155] S350: Determine the initial output power based on the voltage signal and the current signal.

[0156] The initial output signal output by the device to be calibrated is received by the power calculation device, so that the power calculation device outputs a voltage signal and a current signal according to the initial output signal, thereby determining the initial output power according to the voltage signal and the current signal.

[0157] S360: Provide an initial output power to the device to be calibrated, so that the device to be calibrated determines an initial coefficient reference value based on the initial output power.

[0158] In an optional embodiment, the device to be calibrated is configured to: determine multiple initial output power groups based on each initial output power; determine an initial calibration parameter group corresponding to each set input signal parameter based on each initial output power group and the corresponding theoretical output power to obtain multiple initial calibration parameter groups; determine an initial coefficient reference value based on the multiple initial calibration parameter groups.

[0159] Each initial output power group corresponds to a set input signal parameter; each initial output power group includes at least one initial output power, and at least one initial output power in the same initial output power group has a one-to-one correspondence with at least one input frequency. Each initial calibration parameter group includes at least one initial calibration parameter, and at least one initial calibration parameter in the same initial calibration parameter group has a one-to-one correspondence with at least one input frequency.

[0160] In an optional embodiment, based on each initial output power group and the corresponding theoretical output power, the initial calibration parameter group corresponding to each set input signal parameter is determined, including: based on each initial output power in each initial output power group and the theoretical output power corresponding to each initial output power group, obtaining the initial calibration parameter group corresponding to each set input signal parameter.

[0161] In an optional embodiment, the quotient of the initial output power and the theoretical output power corresponding to the initial output power is used as the initial calibration parameter, so that the initial calibration parameter group corresponding to each set input signal parameter is obtained based on each initial output power in each initial output power group and the theoretical output power corresponding to each initial output power group.

[0162] In an optional embodiment, an initial coefficient reference value is determined based on multiple initial calibration parameter groups, including: taking the median of the initial calibration parameters included in the multiple initial calibration parameter groups as the initial coefficient reference value, so that under the calibration of the initial coefficient reference value, the actual output power of the device to be calibrated may be closer to the theoretical output power.

[0163] S370. When at least one input frequency is traversed, determine the set input signal parameters other than the target set input signal parameters among the multiple set input signal parameters as the target set input signal parameters; repeat S320-S360 until the multiple set input signal parameters are all determined as the target set input signal parameters.

[0164] S380: Obtain multiple setting coefficient ratios.

[0165] S390: Obtain multiple initial calibration coefficients based on the initial coefficient reference value and multiple set coefficient ratios.

[0166] The multiple setting coefficient ratios correspond one-to-one to the multiple initial calibration coefficients.

[0167] S3100: Acquire multiple set input signal parameters and multiple theoretical output powers.

[0168] S3110 , determining an initial calibration signal parameter group corresponding to each initial calibration coefficient according to each initial calibration coefficient and a plurality of set input signal parameters, and sending each initial calibration signal parameter group to the device to be calibrated.

[0169] Each initial calibration signal parameter group includes a plurality of initial calibration signal parameters.

[0170] S3120. Acquire multiple output power groups.

[0171] Each output power group corresponds to an initial calibration signal parameter group, and each output power group includes multiple output powers; the multiple output powers in the output power group correspond one-to-one to the multiple initial calibration signal parameters in the initial calibration signal parameter group.

[0172] S3130: Determine a target calibration coefficient for the device to be calibrated from a plurality of initial calibration coefficients according to each output power in each output power group and the theoretical output power corresponding to each output power.

[0173] In this embodiment, an input frequency group and multiple set input signal parameters are obtained, a target set input signal parameter is determined from the multiple set input signal parameters, at least one input frequency is traversed, and the traversed input frequency and target set signal parameter are sent to the device to be calibrated, so that the device to be calibrated outputs an initial output signal. A voltage signal and a current signal determined based on the initial output signal are obtained, an initial output power is determined based on the voltage signal and the current signal, and the initial output power is provided to the device to be calibrated, so that the device to be calibrated determines an initial coefficient reference value based on the initial output power, thereby obtaining multiple initial calibration coefficients based on the initial coefficient reference values ​​and the ratios of the multiple set coefficients. In this way, the obtained initial calibration coefficients may be more accurate.

[0174] In one possible implementation, Figure 5 This is a flowchart of another automatic calibration method provided by an embodiment of the present application. Based on the above embodiment, this embodiment further adds a step of how to determine whether the automatic calibration of the device to be calibrated is qualified based on multiple verification output powers and multiple theoretical output powers. Figure 5 As shown, the automatic calibration method specifically includes:

[0175] S410 , obtaining a plurality of initial calibration coefficients, a plurality of set input signal parameters, and a plurality of theoretical output powers.

[0176] The plurality of set input signal parameters correspond one to one with the plurality of theoretical output powers.

[0177] S420 , determining an initial calibration signal parameter group corresponding to each initial calibration coefficient according to each initial calibration coefficient and a plurality of set input signal parameters, and providing each initial calibration signal parameter group to the device to be calibrated.

[0178] Each initial calibration signal parameter group includes a plurality of initial calibration signal parameters; and the plurality of initial calibration signal parameters correspond one-to-one to the plurality of set input signal parameters.

[0179] S430: Acquire multiple output power groups.

[0180] Each output power group corresponds to an initial calibration signal parameter group, each output power group includes multiple output powers, and the multiple output powers in the output power group correspond one-to-one to the multiple initial calibration signal parameters in the initial calibration signal parameter group.

[0181] S440: Determine a target calibration coefficient for the device to be calibrated from a plurality of initial calibration coefficients according to each output power of each output power group and a theoretical output power corresponding to each output power.

[0182] S450 , determining a plurality of verification calibration signal parameters according to the target calibration coefficient and a plurality of set input signal parameters, and sending each verification calibration signal parameter to the device to be calibrated.

[0183] S460: Obtain multiple verification output powers.

[0184] Among them, the multiple verification output powers correspond one-to-one to the multiple verification calibration signal parameters.

[0185] S470: Determine a qualified output power among multiple verified output powers.

[0186] The difference between the qualified output power and the corresponding theoretical output power satisfies a first condition. The first condition is determined based on the calibration accuracy requirements for the device to be calibrated. In an optional embodiment, the first condition verifies that the difference between the output power and the corresponding theoretical output power is within an expected error range, where the expected error range is determined based on the calibration accuracy requirements for the device to be calibrated. The larger the expected error range, the lower the calibration accuracy; conversely, the smaller the expected error range, the higher the calibration accuracy.

[0187] S480: Determine a target ratio based on the number of qualified output powers and the number of verified output powers.

[0188] The target ratio is the ratio of the number of qualified output powers to the number of verified output powers.

[0189] S490: When the target ratio is greater than or equal to the preset ratio, determine that the automatic calibration of the device to be calibrated is qualified, and send the target calibration coefficient to the device to be calibrated, so that the device to be calibrated works under the calibration of the target calibration coefficient.

[0190] The preset ratio is determined based on the calibration accuracy requirements for the device to be calibrated. A higher preset ratio indicates a higher calibration accuracy for the device to be calibrated; conversely, a lower preset ratio indicates a lower calibration accuracy for the device to be calibrated. In one exemplary embodiment, the preset ratio is 100%, meaning that the automatic calibration of the device to be calibrated is considered qualified when the difference between each verified output power and the corresponding theoretical output power is within a preset range.

[0191] S4100: When the target ratio is less than the preset ratio, output a warning message.

[0192] The warning information is used to prompt the feedback module of the device to be calibrated to detect the need. The warning information may include, but is not limited to, warnings related to at least one of sound, light, and electricity. This embodiment does not limit the specific form of the warning information.

[0193] After the target calibration coefficient is determined, multiple verification calibration signal parameters are determined based on the target calibration coefficient and multiple set input signal parameters, and each verification calibration signal parameter is sent to the device to be calibrated, so that the device to be calibrated uses each verification calibration signal as an input signal, performs power amplification and outputs multiple verification output signals, thereby obtaining multiple verification output powers based on the multiple verification output signals. Then, among the multiple verification output powers, a qualified output power whose difference with the corresponding theoretical output power meets the first condition is determined, and then the target ratio is determined based on the number of qualified output powers and the number of verification output powers. When the target ratio is greater than or equal to the preset ratio, it is determined that the automatic calibration of the device to be calibrated is qualified. At this time, the target calibration coefficient is sent to the device to be calibrated, so that the device to be calibrated works under the calibration of the target calibration coefficient. On the contrary, when the target ratio is less than the preset ratio, a warning message is output to prompt the operator to re-test the feedback module of the device to be calibrated.

[0194] In this embodiment, a qualified output power is determined among multiple verified output powers, and then a target ratio is determined based on the number of qualified output powers and the number of verified output powers. When the target ratio is greater than or equal to the preset ratio, it is determined that the automatic calibration of the device to be calibrated is qualified. When the target ratio is less than the preset ratio, a warning message is output, which helps to ensure the accurate output of the device to be calibrated.

[0195] In a possible implementation, this embodiment provides an automatic calibration device, which can be implemented in the form of hardware and / or software. Figure 6 This is a schematic diagram of the structure of the automatic calibration device provided in the embodiment of the present application, as shown in FIG. Figure 6 As shown, the device includes:

[0196] The first acquisition module 310 is used to acquire a plurality of initial calibration coefficients, a plurality of set input signal parameters, and a plurality of theoretical output powers; the plurality of set input signals correspond one to one with the plurality of theoretical output powers.

[0197] The first determination module 320 is used to determine each corresponding initial calibration signal parameter group based on each initial calibration coefficient and multiple set input signal parameters, so as to send each initial calibration parameter to the device to be calibrated; the initial calibration signal parameter group includes multiple initial calibration parameters; the multiple initial calibration signal parameters correspond one-to-one to the multiple set input signal parameters.

[0198] The second acquisition module 330 is used to obtain multiple output power groups; each of the output power groups corresponds to an initial calibration signal parameter group, and each output power group includes multiple output powers; the multiple output powers in the output power group correspond one-to-one to the multiple initial calibration signal parameters in the initial calibration signal parameter group.

[0199] The second determining module 340 is configured to determine a target calibration coefficient of the device to be calibrated from a plurality of initial calibration coefficients according to each output power in each output power group and each theoretical output power corresponding to each output power.

[0200] The automatic calibration device provided in the embodiment of the present application can execute the automatic calibration method provided in any embodiment of the present application, and has the corresponding functional modules and beneficial effects of the execution method. The similarities can be referred to the above description.

[0201] This embodiment provides an automatic calibration device for a device to be calibrated. Figure 7 This is a structural block diagram of an automatic calibration device provided in an embodiment of the present application, such as Figure 7 As shown, the automatic calibration device includes a processing module and a storage module, wherein the storage module stores operation instructions that can be executed by the processing module, so that the processing module can execute the automatic calibration method provided by any embodiment of the present application.

[0202] Since the automatic calibration device provided in the embodiment of the present application includes a processing module and a storage module, and the processing module can execute the automatic calibration method provided in any embodiment of the present application, it can have the corresponding structure and characteristics for executing the automatic calibration method provided in the embodiment of the present application, and can achieve the beneficial effects of the automatic calibration method provided in the embodiment of the present application. The similarities can be referred to the above description.

[0203] In an optional embodiment, the automatic calibration device also includes a parameter acquisition module, which is electrically connected to the processing module; the parameter acquisition module is used to collect the output signal of the device to be calibrated and send the output signal of the device to be calibrated to the processing module, so that the processing module determines the output power of the device to be calibrated based on the output signal.

[0204] The parameter acquisition module may include, but is not limited to, an oscilloscope, and it only needs to be able to acquire the output signal of the device to be calibrated. This embodiment does not make any specific limitation to this.

[0205] In an optional embodiment, the automatic calibration device also includes a first communication interface and a second communication interface. The processing module is electrically connected to the parameter acquisition module through the first communication interface, and is electrically connected to the device to be calibrated through the second communication interface, so that the processing module can receive the output signal of the device to be calibrated collected by the parameter acquisition module through the first communication interface, and communicate with the device to be calibrated through the second communication interface, thereby making the structure of the automatic calibration device simple, and easy to realize the electrical connection between the automatic calibration device and the device to be calibrated, further simplifying the automatic calibration process of the device to be calibrated.

[0206] In an optional embodiment, the device to be calibrated includes a first control module and a power amplification module, and the second communication interface is electrically connected to the first control module, so that the processing module communicates with the first control module through the second communication interface.

[0207] This embodiment provides a device system to be calibrated. Figure 8 This is a structural block diagram of a device system to be calibrated provided in an embodiment of the present application, such as Figure 8 As shown, the device to be calibrated system includes the device to be calibrated and the automatic calibration device provided by any embodiment of the present application.

[0208] Since the device system to be calibrated provided in the embodiment of the present application includes the device to be calibrated and the above-mentioned automatic calibration device, and the automatic calibration device can execute the automatic calibration method provided in the embodiment of the present application, it can have the corresponding structure and characteristics for executing the automatic calibration method provided in the embodiment of the present application, and can achieve the beneficial effects of the automatic calibration method provided in the embodiment of the present application. The similarities can be referred to the above description.

[0209] In an optional embodiment, the device to be calibrated includes a first control module and a device to be calibrated module. The device to be calibrated module includes a digital-to-analog converter, a signal generator, a signal amplifier and a load. In some embodiments, the load is an ablation device, such as an ultrasonic generator, a pulsed electric field ablation device, etc., which is not specifically limited here. The first control module is electrically connected to the digital-to-analog converter and the signal generator, and the digital-to-analog converter and the signal generator are also electrically connected to the signal amplifier, and the signal amplifier is electrically connected to the load. When the device to be calibrated is working, the first control module provides the voltage signal in the input signal to the signal amplifier through the digital-to-analog converter, and provides the square wave signal of the frequency in the input signal to the signal amplifier through the signal generator. After receiving the voltage signal and the square wave signal, the signal amplifier adjusts the amplitude of the square wave signal through the voltage signal, and amplifies the square wave signal after adjusting the amplitude, and then transmits the amplified square wave signal to the load through the power supply, and then the load converts the amplified square wave signal into a sine wave signal as the output signal of the device to be calibrated.

[0210] In an optional embodiment, the device to be calibrated further includes a feedback module, which includes a current sampling module and a voltage sampling module. The output signal of the device to be calibrated is sampled by the current sampling module and the voltage sampling module and then output to the first control module. The first control module calculates the actual output power of the device to be calibrated based on the sampling results of the current sampling module and the voltage sampling module and adjusts the input signal to ensure more accurate output of the device to be calibrated.

[0211] In one optional embodiment, the device to be calibrated further includes a third communication interface electrically connected to the first control module and configured to enable communication between the first control module and an external device, such as a host computer. In another optional embodiment, the device to be calibrated further includes an Electrically Erasable Programmable Read-Only Memory (EEPROM) configured to store relevant parameters of the device to be calibrated.

[0212] Based on the same concept, an embodiment of the present application further provides a computer-readable storage medium, which stores computer instructions, and the computer instructions are used to enable a processor to implement the method provided in any of the above embodiments when executed.

[0213] 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 an instruction execution system, device or equipment or used in combination with an instruction execution system, device or equipment. A computer-readable storage medium can include, but is not limited to, electronic, magnetic, optical, electromagnetic, infrared or semiconductor systems, devices or equipment, or any suitable combination of the foregoing. Alternatively, a computer-readable storage medium can be a machine-readable signal medium. A more specific example of a machine-readable storage medium can include an electrical connection based on one or more lines, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

[0214] Whenever a numerical range is indicated in this application, it is meant to include any recited value (fractional and whole) within the indicated range. The phrases "the range between a first indicated value and a second indicated value" and "the range from a first indicated value to a second indicated value" are used interchangeably herein and are meant to include the first and second indicated values ​​and all fractional and whole values ​​therebetween.

[0215] As used herein, when used in conjunction with numerical values ​​and / or ranges, the terms "about" and / or "approximately" generally refer to numerical values ​​and / or ranges that are close to the stated numerical values ​​and / or ranges. In some cases, the terms "about" and "approximately" can mean within ±10% of the stated value. For example, in some cases, "about 100 [units]" can mean within ±10% of 100 (e.g., 90 to 110). The terms "about" and "approximately" can be used interchangeably.

[0216] As used herein, the singular forms "a", "an", and "the" include plural forms unless the context clearly dictates otherwise. For example, the term "a compound" or "at least one compound" may include a plurality of compounds, including mixtures thereof.

[0217] The term "consisting essentially of" means that the composition, method or structure may include additional ingredients, steps and / or components, but only if such additional ingredients, steps and / or components do not significantly alter the basic and novel characteristics of the claimed composition, method or structure.

[0218] The implementation of the method and / or system of the embodiment of the present application may include performing or completely performing the selected task manually, automatically, or a combination thereof. In addition, according to the actual instruments and equipment of the embodiment of the method and / or system of the present application, using an operating system, several selected tasks may be implemented by hardware, by software, by firmware, or by a combination thereof.

[0219] For example, the hardware for performing the selected tasks according to the embodiments of the present application can be implemented in the form of a chip or circuit. As software, the tasks selected according to the embodiments of the present application can be implemented in the form of multiple software instructions executed by a computer using any suitable operating system. In an exemplary embodiment of the present application, one or more tasks according to the exemplary embodiments of the method and / or system described in the present application are performed by a data processor, such as a computing platform for executing multiple instructions. Optionally, the data processor includes a volatile memory for storing instructions and / or data and / or a non-volatile memory for storing instructions and / or data, such as a magnetic hard disk and / or a removable medium. Optionally, a network connection is also provided. A display and / or user input device such as a keyboard or mouse are also optionally provided.

[0220] It should be understood that certain features of the present application that are described in the context of separate embodiments for the purpose of clarity may also be provided in combination in a single embodiment. Conversely, various features of the present application that are described in the context of a single embodiment for the purpose of brevity may also be provided individually or in any suitable subcombination or, where appropriate, in any other described embodiment of the present application. Certain features described in the context of multiple embodiments should not be considered essential features of those embodiments unless the embodiment is inoperative without those elements.

[0221] Although the present invention has been described in conjunction with its specific embodiments, it is apparent that many alternatives, modifications and variations may be apparent to those skilled in the art. It is therefore intended to embrace all such alternatives, modifications and variations that fall within the spirit and broad scope of the appended claims.

Claims

1. An automatic calibration method, characterized in that: include: obtaining a plurality of initial calibration coefficients, a plurality of set input signal parameters, and a plurality of theoretical output powers; The plurality of set input signal parameters correspond one to one with the plurality of theoretical output powers; Determining, according to each of the initial calibration coefficients and a plurality of the set input signal parameters, an initial calibration signal parameter group corresponding to each of the initial calibration coefficients, so as to send each of the initial calibration signal parameter groups to the device to be calibrated; Each of the initial calibration signal parameter groups includes a plurality of initial calibration signal parameters, and the plurality of initial calibration signal parameters correspond one-to-one to a plurality of the set input signal parameters; Acquire multiple output power groups; each of the output power groups corresponds to one of the initial calibration signal parameter groups, and each of the output power groups includes multiple output powers; and the multiple output powers in the output power group correspond one-to-one to the multiple initial calibration signal parameters in the initial calibration signal parameter group; According to each of the output powers in each of the output power groups and the theoretical output power corresponding to each of the output powers, a target calibration coefficient of the device to be calibrated is determined from a plurality of the initial calibration coefficients.

2. The automatic calibration method according to claim 1, characterized in that: Before obtaining the multiple initial calibration coefficients, the method further includes: Obtaining an initial coefficient reference value and multiple set coefficient ratios; A plurality of the initial calibration coefficients are obtained according to the initial coefficient reference value and the plurality of the setting coefficient ratios; the plurality of the setting coefficient ratios correspond one-to-one to the plurality of the initial calibration coefficients.

3. The automatic calibration method according to claim 2, characterized in that: The obtaining of the initial coefficient reference value includes: Acquire an input frequency group and the plurality of set input signal parameters, wherein the input frequency group includes at least one input frequency; determining a target setting input signal parameter from the plurality of setting input signal parameters; traversing the at least one input frequency, and sending the traversed input frequency and the target setting input signal parameter to the device to be calibrated, so that the device to be calibrated outputs an initial output signal; Acquiring a voltage signal and a current signal, wherein the voltage signal and the current signal are both determined based on the initial output signal; determining an initial output power based on the voltage signal and the current signal; Providing the initial output power to the device to be calibrated, so that the device to be calibrated determines the initial coefficient reference value based on the initial output power; When the at least one input frequency is traversed, the set input signal parameters other than the target set input signal parameters among the multiple set input signal parameters are determined as the target set input signal parameters; and the steps of determining the target set input signal parameters among the multiple set input signal parameters to providing the initial output power to the device to be calibrated are repeated until the multiple set input signal parameters are all determined as the target set input signal parameters.

4. The automatic calibration method according to claim 3, characterized in that: The device to be calibrated is configured to: determine a plurality of initial output power groups based on each of the initial output powers; each of the initial output power groups corresponds to a set input signal parameter; each of the initial output power groups includes at least one initial output power, and at least one of the initial output powers in the same initial output power group has a one-to-one correspondence with at least one of the input frequencies; determine an initial calibration parameter group corresponding to each of the set input signal parameters based on each of the initial output power groups and the corresponding theoretical output power, so as to obtain a plurality of initial calibration parameter groups; Each of the initial calibration parameter groups includes at least one initial calibration parameter, and at least one initial calibration parameter in the same initial calibration parameter group has a one-to-one correspondence with at least one input frequency; the initial coefficient reference value is determined based on multiple initial calibration parameter groups.

5. The automatic calibration method according to claim 4, characterized in that: The determining, based on each of the initial output power groups and the corresponding theoretical output power, an initial calibration parameter group corresponding to each of the set input signal parameters comprises: Obtaining an initial calibration parameter group corresponding to each of the set input signal parameters according to each initial output power in each initial output power group and the theoretical output power corresponding to each initial output power group; The determining the initial coefficient reference value according to the plurality of initial calibration parameter groups includes: The median of the initial calibration parameters included in the multiple initial calibration parameter groups is used as the initial coefficient reference value.

6. The automatic calibration method according to claim 1, wherein: Determining, based on each of the initial calibration coefficients and the plurality of set input signal parameters, an initial calibration signal parameter group corresponding to each of the initial calibration coefficients includes: Obtaining a plurality of actual input voltage parameters according to each of the initial calibration coefficients and a plurality of the set input signal parameters; each of the set input signal parameters corresponds to one of the actual input voltage parameters; According to each of the initial calibration coefficients and the multiple actual input voltage parameters, multiple actual input frequency parameters are obtained, and each actual input voltage parameter corresponds to one actual input frequency parameter; the initial calibration signal parameters include the actual input voltage parameters and the actual input frequency parameters.

7. The automatic calibration method according to claim 1, wherein: The step of determining a target calibration coefficient of the device to be calibrated from a plurality of initial calibration coefficients according to each output power in each output power group and the theoretical output power corresponding to each output power includes: Determining a parameter to be screened corresponding to each output power group according to each output power of each output power group and the theoretical output power corresponding to each output power; According to the parameters to be screened corresponding to each of the output power groups, a target calibration coefficient of the device to be calibrated is determined from the multiple initial calibration coefficients.

8. The automatic calibration method according to claim 7, characterized in that: The determining, based on the output powers of each output power group and the theoretical output power corresponding to each output power, the parameter to be screened corresponding to each output power group includes: Calculating each of the output powers in each of the output power groups, and a power error of the theoretical output power corresponding to each of the output powers; According to each of the power errors, a parameter to be screened corresponding to each of the output power groups is determined.

9. The automatic calibration method according to claim 7 or 8, characterized in that: The parameters to be screened include medians and / or root mean squares determined based on power errors corresponding to the same output power group; Determining a target calibration coefficient of the device to be calibrated from the plurality of initial calibration coefficients based on the parameters to be screened corresponding to each output power group includes at least one of the following: Using the initial calibration coefficient corresponding to the parameter to be screened with the smallest median among the parameters to be screened corresponding to each output power group as the target calibration coefficient of the device to be calibrated; or, using the initial calibration coefficient corresponding to the parameter to be screened with the smallest root mean square among the parameters to be screened corresponding to each output power group as the target calibration coefficient of the device to be calibrated; or Among the parameters to be screened corresponding to each of the output power groups, the initial calibration coefficient corresponding to the parameter to be screened with the smallest average value of the median and the root mean square is used as the target calibration coefficient of the device to be calibrated.

10. The automatic calibration method according to claim 1, wherein: After determining the target calibration coefficient of the device to be calibrated from the plurality of initial calibration coefficients, the method further includes: Determining a plurality of verification calibration signal parameters according to the target calibration coefficient and the plurality of set input signal parameters, so as to send the plurality of verification calibration signal parameters to the device to be calibrated; wherein the plurality of verification calibration signal parameters correspond one-to-one to the plurality of set input signal parameters; Acquire a plurality of verification output powers; wherein the plurality of verification output powers correspond one-to-one to the plurality of verification calibration signal parameters; determining whether the automatic calibration of the device to be calibrated is qualified according to the multiple verified output powers and the multiple theoretical output powers; When the automatic calibration of the device to be calibrated passes, the target calibration coefficient is sent to the device to be calibrated, so that the device to be calibrated works under the calibration of the target calibration coefficient.

11. The automatic calibration method according to claim 10, characterized in that: The determining whether the automatic calibration of the device to be calibrated is qualified according to the multiple verified output powers and the multiple theoretical output powers includes: Determining a qualified output power from the plurality of verified output powers; the difference between the qualified output power and the corresponding theoretical output power satisfies a first condition; determining a target ratio based on the number of the qualified output powers and the number of the verified output powers; When the target ratio is greater than or equal to the preset ratio, determining that the automatic calibration of the device to be calibrated is qualified; When the target ratio is less than the preset ratio, a warning message is output; wherein the warning message is used to prompt the feedback module of the device to be calibrated to detect the need.

12. An automatic calibration device, characterized in that: include: A first acquisition module is used to acquire a plurality of initial calibration coefficients, a plurality of set input signal parameters, and a plurality of theoretical output powers; The plurality of set input signals correspond one to one with the plurality of theoretical output powers; a first determining module, configured to determine, based on each of the initial calibration coefficients and a plurality of the set input signal parameters, an initial calibration signal parameter group corresponding to each of the initial calibration coefficients, so as to send each of the initial calibration signal parameter groups to the device to be calibrated; Each of the initial calibration signal parameter groups includes a plurality of the initial calibration signal parameters; The plurality of initial calibration signal parameters correspond one-to-one to the plurality of set input signal parameters; A second acquisition module acquires a plurality of output power groups; each of the output power groups corresponds to one of the initial calibration signal parameter groups, and each of the output power groups includes a plurality of output powers; and the plurality of output powers in the output power group corresponds one-to-one to the plurality of initial calibration signal parameters in the initial calibration signal parameter group; The second determining module is configured to determine a target calibration coefficient of the device to be calibrated from a plurality of initial calibration coefficients according to each output power in each output power group and the theoretical output power corresponding to each output power.

13. An automatic calibration device, characterized in that: include: A processing module and a storage module, wherein the storage module stores operating instructions executable by the processing module, so that the processing module executes the automatic calibration method according to any one of claims 1 to 11.

14. The automatic calibration device according to claim 13, characterized in that Also includes: Parameter acquisition module; The parameter acquisition module is electrically connected to the processing module; The parameter acquisition module is used to acquire the output signal of the device to be calibrated, and send the output signal of the device to be calibrated to the processing module, so that the processing module can determine the output power of the device to be calibrated according to the output signal.

15. The automatic calibration device according to claim 14, characterized in that The automatic calibration device further includes a first communication interface and a second communication interface; The processing module is electrically connected to the parameter acquisition module via the first communication interface, and is electrically connected to the device to be calibrated via the second communication interface.

16. An automatic calibration system, characterized in that: include: A device to be calibrated and the automatic calibration device according to any one of claims 13 to 15.

17. A computer storage medium, characterized in that The computer-readable storage medium stores computer instructions, and the computer instructions are used to enable a processor to implement the automatic calibration method according to any one of claims 1 to 11 when executed.

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