Low-voltage driven focus tunable lens power consumption optimization and safety degradation control method and system

Abstract

The present application relates to the field of adaptive optics, in particular to a low-voltage driven adjustable focus lens power consumption optimization and safe degradation control method and system. The method establishes a historical liquid crystal lens electrode driving state sequence by collecting instantaneous liquid crystal lens electrode driving voltage value and instantaneous displacement current value, performs frequency domain analysis on the displacement current and screens the mechanical disturbance frequency band induced by wearer motion, generates refractive index distortion compensation parameters combined with mechanical disturbance characteristic quantity, liquid crystal polarization potential value and material photoelastic tensor coefficient, and then performs pulse charging and discharging control according to target focal length, target peak voltage value, liquid crystal lens electrode driving pulse width value and liquid crystal lens electrode driving duty cycle value; when the electric quantity is lower than the threshold value, the minimum disturbance degradation path control is performed according to the residual driving energy state set. The system is used to implement the above method. The present application can balance the power consumption optimization, dynamic focal length stability and safe degradation smoothness under low-voltage driving.

Description

Technical Field

[0001] This invention relates to the field of adaptive optics technology, and in particular to a method and system for optimizing power consumption and degrading safety of low-voltage driven adjustable focus lenses. Background Technology

[0002] The field of adaptive optics technology primarily involves technologies that dynamically adjust optical systems to alter the propagation path and focal length of light waves. This technology encompasses dynamic focal length adjustment, visual focus matching adjustment, real-time optical state control, and control strategies for coordinated operation with wearable display devices.

[0003] Traditional low-voltage driven adjustable focus lens power consumption optimization and safety degradation control methods typically control the lens focal length change process by setting a multi-level drive voltage sequence, and maintain the corresponding voltage level after the focal length reaches the target state. At the same time, the voltage change time, voltage amplitude and focal length change correspondence are recorded during continuous operation. When the device power decreases or the drive voltage becomes unstable, the drive voltage level is reduced in a preset order and the voltage change frequency is gradually reduced. Meanwhile, the lens's basic focal length state is maintained by setting a minimum drive voltage value and a fixed focal length state as the operating state.

[0004] Traditional low-voltage driven adjustable lens power consumption optimization and safety degradation control technologies fail to deeply analyze the transient dielectric fluctuations and power dissipation evolution between lens plates when facing external environmental interference in actual operation. Under continuous mechanical vibration, they cannot quantify the optical refractive index shift induced by physical deformation in real time, which makes it easy for the focal length to be distorted in dynamic scenes. At the same time, when faced with low-power trigger degradation, they can only rigidly reduce the driving voltage amplitude, ignoring the smooth transition requirement of the potential energy difference inside the crystal during the relaxation process. This can easily cause local stress concentration caused by electric field abrupt changes, making it difficult to balance dynamic visual smoothness and the stability of the underlying structure. Summary of the Invention

[0005] To address the technical problems existing in the prior art, embodiments of the present invention provide a method and system for optimizing power consumption and degrading safety of adjustable focus lenses driven by low voltage.

[0006] To achieve the above objectives, the present invention employs the following technical solution: a low-voltage driven adjustable focus lens power consumption optimization and safety degradation control method, comprising the following steps: S1: Obtain the instantaneous liquid crystal lens plate driving voltage value and instantaneous displacement current value, and calculate the corresponding instantaneous power dissipation value, and combine them into a historical liquid crystal lens plate driving state sequence. S2: Obtain the instantaneous displacement current value in the historical liquid crystal lens plate driving state sequence, extract the displacement current frequency component amplitude set through frequency domain transformation processing, filter the target mechanical disturbance frequency band in the displacement current frequency component amplitude set, and generate the filtered displacement current amplitude sequence. S3: The mechanical disturbance characteristic quantity is obtained by performing mechanical disturbance sliding window statistics on the filtered displacement current amplitude sequence, and the liquid crystal polarization potential value is obtained by combining the instantaneous liquid crystal lens plate driving voltage value in the historical liquid crystal lens plate driving state sequence. Then, the refractive index distortion compensation parameter is generated according to the preset material elastic-optical tensor coefficient. S4: Obtain the basic sustaining voltage value of the wearable glasses liquid crystal lens corresponding to the target focal length, and calculate the target peak voltage value in combination with the refractive index distortion compensation parameter. At the same time, obtain the liquid crystal lens plate driving pulse width value and the liquid crystal lens plate driving duty cycle value, adjust the discrete pulse charging and discharging control of the glasses liquid crystal lens, and obtain the power consumption optimization control result. S5: Obtain the instantaneous power dissipation value in the historical liquid crystal lens plate driving state sequence, obtain the remaining driving energy state set through time integration, perform constraint optimization on the remaining driving energy state set, and obtain the safety degradation control result.

[0007] As a further aspect of the present invention, the historical liquid crystal lens electrode driving state sequence includes the instantaneous liquid crystal lens electrode driving voltage value, the instantaneous displacement current value, and the instantaneous power dissipation value recorded in time sequence; the filtered displacement current amplitude sequence includes the extracted specified frequency component and the retained target displacement current amplitude; the refractive index distortion compensation parameter is specifically a compensation amount obtained by mapping mechanical disturbance characteristics, liquid crystal polarization potential value, and preset material elastic-optical tensor coefficient; the remaining driving energy state set includes a driving energy state value sequence calculated according to a time window; and the safety degradation control result includes a progressive perturbation attenuation waveform term and the target maintained focal length state after execution.

[0008] As a further aspect of the present invention, an adjustable focus lens control system for implementing the above method includes a voltage and current synchronous acquisition unit, a frequency domain analysis unit, a disturbance feature calculation unit, a pulse drive unit, a battery status detection unit, a safety degradation control unit, and a main control unit. The system includes a voltage and current synchronous acquisition unit for acquiring instantaneous liquid crystal lens plate driving voltage and instantaneous displacement current; a frequency domain analysis unit for filtering target mechanical disturbance frequency bands; a disturbance feature calculation unit for generating mechanical disturbance feature quantities, liquid crystal polarization potential values, and refractive index distortion compensation parameters; a pulse driving unit for outputting liquid crystal lens plate driving voltage pulse sequences; a battery status detection unit for detecting the current remaining charge value of the power supply battery; a safety degradation control unit for generating a minimum disturbance degradation path under low charge conditions; and a main control unit for coordinating power consumption optimization control and safety degradation control.

[0009] As a further aspect of the present invention, step S1 specifically comprises: S101: During the steady-state focal length maintenance period of the liquid crystal lens of the glasses, the instantaneous liquid crystal lens plate driving voltage value and the instantaneous displacement current value corresponding to the dielectric fluctuation between the liquid crystal lens plates are continuously collected through the circuit interface to establish an instantaneous power supply fluctuation parameter set. S102: Calculate the product of the instantaneous liquid crystal lens plate driving voltage value and the instantaneous displacement current value at the same acquisition time in the instantaneous power supply fluctuation parameter set to obtain the instantaneous power dissipation value; S103: The instantaneous liquid crystal lens plate driving voltage value and instantaneous displacement current value, together with the instantaneous power dissipation value, from the instantaneous power supply fluctuation parameter set are used as sorting items and arranged in the time dimension according to the chronological order of their respective corresponding circuit interface acquisition time to establish a historical liquid crystal lens plate driving state sequence.

[0010] As a further aspect of the present invention, step S2 specifically comprises: S201: Extract the instantaneous displacement current value from the historical liquid crystal lens plate driving state sequence, input the instantaneous displacement current value into the discrete Fourier transform function, perform transformation mapping processing on the time domain data to frequency domain data of the instantaneous displacement current value, and obtain the set of displacement current frequency component amplitude values. S202: Obtain the preset upper limit vibration frequency value and lower limit vibration frequency value representing the frequency band of mechanical disturbance induced by the wearer's movement, filter the displacement current frequency component amplitude values ​​located between the upper limit vibration frequency value and the lower limit vibration frequency value in the displacement current frequency component amplitude set, and obtain the mid-range vibration frequency band amplitude. S203: Combine the displacement current frequency component amplitudes in the mid-section vibration frequency band amplitudes according to the frequency from front to back to generate a filtered displacement current amplitude sequence.

[0011] As a further aspect of the present invention, step S3 specifically comprises: S301: Input the filtered displacement current amplitude sequence into a preset mechanical disturbance sliding window, extract the amplitude of each frequency component in the window and perform weighted cumulative statistics to obtain the mechanical disturbance characteristic quantity; S302: Calculate the cumulative integral value of the instantaneous liquid crystal lens plate driving voltage value in the historical liquid crystal lens plate driving state sequence on the corresponding circuit acquisition time line to obtain the liquid crystal polarization potential value. S303: Based on the mechanical disturbance characteristic quantity, the liquid crystal polarization potential value and the preset material elastic-optical tensor coefficient, a mapping calculation is performed to generate the refractive index distortion compensation parameter.

[0012] As a further aspect of the present invention, step S4 specifically comprises: S401: Obtain the basic sustaining voltage value of the liquid crystal lens of the eyeglasses corresponding to the target focal length, calculate the difference between the basic sustaining voltage value of the liquid crystal lens of the eyeglasses and the refractive index distortion compensation parameter, and obtain the target peak voltage value. S402: Obtain the liquid crystal polarization potential value and the preset reference polarization potential value, calculate the ratio of the two as the polarization compensation coefficient, and at the same time obtain the preset liquid crystal lens plate reference pulse width value and the liquid crystal lens plate reference duty cycle value, calculate the product of the liquid crystal lens plate reference pulse width value and the polarization compensation coefficient, calculate the product of the liquid crystal lens plate reference duty cycle value and the polarization compensation coefficient, and establish the plate driving pulse width and duty cycle parameters. S403: The target peak voltage value and the liquid crystal lens electrode driving pulse width and duty cycle value in the electrode driving pulse width and duty cycle parameters are called as building elements to generate a liquid crystal lens electrode driving voltage pulse sequence. The liquid crystal lens electrode driving voltage pulse sequence is output to the circuit interface to execute the discrete pulse charging and discharging control command of the eyeglass liquid crystal lens to obtain the power consumption optimization control result.

[0013] As a further aspect of the present invention, step S5 specifically comprises: S501: Read the current remaining power value of the power supply battery through the battery detection interface, compare the current remaining power value with the preset safety degradation power threshold, and if the current remaining power value is lower than the safety degradation power threshold, obtain the integral value of the instantaneous power dissipation value over time in the historical liquid crystal lens plate driving state sequence, and establish a set of remaining driving energy states. S502: Extract each drive energy state value in the remaining drive energy state set, perform constraint optimization processing, compare the drive energy state value with the preset current bias state reference value and the power-off reference value, filter the drive energy state values ​​within the range defined by the two reference values, and combine and splice them in the degradation order to generate the minimum disturbance degradation path. S503: Extract the voltage value corresponding to each driving energy state value in the minimum disturbance degradation path, perform permutation and combination operations in chronological order to generate a progressively decreasing perturbation attenuation waveform, output the progressively decreasing perturbation attenuation waveform to the circuit interface, and perform a step-down relaxation control command operation on the liquid crystal lens of the glasses to obtain the safety degradation control result.

[0014] Compared with the prior art, the advantages and positive effects of the present invention are as follows: In this invention, a historical driving state sequence is established by collecting instantaneous liquid crystal lens plate driving voltage and instantaneous displacement current values, and frequency domain analysis is performed on the displacement current to filter the mechanical disturbance frequency band induced by the wearer's movement. This results in the formation of mechanical disturbance characteristic quantities, liquid crystal polarization potential values ​​and refractive index distortion compensation parameters, enabling power consumption optimization control to follow the changes in optical disturbances under dynamic scenarios. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the steps of the present invention; Figure 2 This is a detailed schematic diagram of S1 of the present invention; Figure 3 This is a detailed schematic diagram of S2 of the present invention; Figure 4 This is a detailed schematic diagram of S3 of the present invention; Figure 5 This is a detailed schematic diagram of S4 of the present invention; Figure 6 This is a detailed schematic diagram of S5 of the present invention. Detailed Implementation

[0017] The technical solution of the present invention will now be described with reference to the accompanying drawings.

[0018] As an example, the adjustable lens control system for implementing the above method includes a voltage and current synchronous acquisition unit, a frequency domain analysis unit, a disturbance feature calculation unit, a pulse drive unit, a battery status detection unit, a safety degradation control unit, and a main control unit.

[0019] The instantaneous voltage and instantaneous displacement current data collected by the voltage and current synchronous acquisition unit are sent to the frequency domain analysis unit and the disturbance feature calculation unit to generate mechanical disturbance feature quantities, liquid crystal polarization potential values ​​and refractive index distortion compensation parameters. The main control unit coordinates the output power optimization waveform of the pulse drive unit based on the above parameters, and calls the safety degradation control unit to generate the minimum disturbance degradation path under low power conditions.

[0020] This embodiment provides a low-voltage driven adjustable focus lens power consumption optimization and safety degradation control method. In practical applications, such as during the continuous operation of wearable glasses liquid crystal lenses to maintain the target focal length, flexible printed circuit connection terminals connect the glasses liquid crystal lens plate, battery detection interface, and circuit interface. The circuit interface continuously collects the driving state of the liquid crystal lens plate and processes displacement current frequency domain disturbances, liquid crystal polarization state, refractive index distortion compensation, discrete pulse charge and discharge control, and voltage reduction relaxation control, including the following steps: Please see Figure 1 and Figure 2 S1: Obtain the instantaneous liquid crystal lens plate driving voltage value and instantaneous displacement current value, and calculate the corresponding instantaneous power dissipation value, and combine them into a historical liquid crystal lens plate driving state sequence. The historical liquid crystal lens plate driving state sequence is a driving state data object arranged according to the acquisition time of the circuit interface. It includes the instantaneous liquid crystal lens plate driving voltage value, the instantaneous displacement current value, and the instantaneous power dissipation value recorded in the time sequence. The instantaneous liquid crystal lens plate driving voltage value is the voltage acquisition item applied to the liquid crystal lens plates by the circuit interface. The instantaneous displacement current value is the current acquisition item caused by dielectric fluctuations between the liquid crystal lens plates and acquired through the sensing path. The instantaneous power dissipation value is the power consumption state item formed by multiplying the voltage acquisition item and the current acquisition item at the same acquisition time.

[0021] The historical liquid crystal lens plate driving state sequence is read in segments in subsequent steps. Instantaneous displacement current values ​​are processed using frequency domain transformation, instantaneous liquid crystal lens plate driving voltage values ​​are processed in the liquid crystal polarization potential generation process, and instantaneous power dissipation values ​​are processed in the remaining driving energy state set generation process. If the circuit interface has missing acquisition records, duplicate records, unconfirmed time sequence, or asynchronous voltage and current, an interface status identifier is first generated during the acquisition phase. Records that cannot be paired at the same acquisition time are excluded from the instantaneous power dissipation value generation process, and the abnormal status is written into the interface operation record.

[0022] S101: During the steady-state focal length maintenance period of the liquid crystal lens of the glasses, the instantaneous liquid crystal lens plate driving voltage value and the instantaneous displacement current value corresponding to the dielectric fluctuation between the liquid crystal lens plates are continuously collected through the circuit interface to establish an instantaneous power supply fluctuation parameter set. The circuit interface is a flexible printed circuit connection terminal integrating a synchronous voltage and current sampling circuit and a dual-channel analog-to-digital converter chip. Structurally, this connection terminal connects the liquid crystal lens plate driving end and the displacement current sensing end, and in terms of processing, it undertakes the responsibilities of synchronous sampling, signal conversion, and acquisition recording output. The instantaneous power supply fluctuation parameter set is a data set formed during the acquisition phase, carrying the liquid crystal lens plate driving voltage acquisition item, displacement current acquisition item, acquisition time identifier, and interface status identifier, and is output to S102 as the input for generating instantaneous power dissipation values.

[0023] During steady-state focus maintenance, the circuit interface first confirms that the liquid crystal lens is in focus maintenance control mode, and then receives the drive voltage signal and displacement current signal respectively through the synchronous sampling circuit. The dual-channel analog-to-digital converter chip converts the two analog acquisition signals into sortable acquisition records, and the flexible printed circuit connection terminals maintain the continuous electrical connection between the lens plate, the sampling circuit and the drive control terminal. If any acquisition path experiences an interface return abnormality, inconsistent record format, or unresolved acquisition time identifier, the acquisition record will not enter S102, but will instead form an interface abnormality state, which will be used by the subsequent control process to identify whether the acquisition source is complete.

[0024] S102: Calculate the product of the instantaneous liquid crystal lens plate driving voltage value and the instantaneous displacement current value at the same acquisition time in the instantaneous power supply fluctuation parameter set to obtain the instantaneous power dissipation value; The instantaneous power dissipation value is a power consumption evaluation data item. The input source is the instantaneous liquid crystal lens plate driving voltage and instantaneous displacement current values ​​collected at the same time from the instantaneous power supply fluctuation parameter set. The processing action is limited to calculating their product. The output destination is the generation process of the historical liquid crystal lens plate driving state sequence established in S103 and the remaining driving energy state set in S5. This processing does not introduce externally acquired data, does not change the source of the voltage and current acquisition items, and does not use records from different acquisition times for instantaneous power dissipation value generation.

[0025] During execution of S102, voltage and current acquisition items are first read from the instantaneous power supply fluctuation parameter set according to the acquisition time identifier. Then, it is checked whether the two types of acquisition items come from the same circuit interface acquisition time. For cases where duplicate records exist, records with consistent time identifiers, interface status identifiers, and acquisition paths are retained, and the duplicate records are written to the duplicate acquisition status. For records that cannot be paired with the same acquisition time, instantaneous power dissipation values ​​are not generated, and the corresponding acquisition items are marked as acquisition status to be compensated. The instantaneous power dissipation values ​​obtained in this way are of the same origin and in the same order as the voltage and current acquisition items, and can be arranged by the time dimension in S103.

[0026] S103: The instantaneous liquid crystal lens plate driving voltage value and instantaneous displacement current value, along with the instantaneous power dissipation value, from the instantaneous power supply fluctuation parameter set are used as sorting items and arranged in the time dimension according to the acquisition time sequence of their respective corresponding circuit interfaces to establish a historical liquid crystal lens plate driving state sequence.

[0027] The sorting item is the basic data object in the time-series state record, containing the instantaneous liquid crystal lens plate driving voltage value, instantaneous displacement current value, instantaneous power dissipation value, and acquisition time identifier. S103 arranges the sorting items according to the chronological order of acquisition time from the circuit interface, forming a historical liquid crystal lens plate driving state sequence for subsequent steps to read. In this embodiment, this sequence has a unique technical meaning: it is a set of driving state records for the liquid crystal lens plate acquired by the circuit interface during focus maintenance, paired at the same acquisition time, and arranged according to the time dimension.

[0028] After the historical liquid crystal lens plate driving state sequence is established, S2 reads the instantaneous displacement current value, S3 reads the instantaneous liquid crystal lens plate driving voltage value, and S5 reads the instantaneous power dissipation value. If a gap occurs in the acquisition during the time dimension arrangement, the sequence retains the continuous state segment that has passed the source verification, and writes the gap state into the interface operation record, so that subsequent frequency domain transformation processing, polarization state processing, and security degradation control can all identify the continuity of the input data.

[0029] Please see Figure 1 and Figure 3 S2: Obtain the instantaneous displacement current value in the historical liquid crystal lens plate driving state sequence, extract the displacement current frequency component amplitude set through frequency domain transformation processing, filter the target mechanical disturbance frequency band in the displacement current frequency component amplitude set, and generate the filtered displacement current amplitude sequence. The displacement current frequency component amplitude set is a frequency domain data object, with the input source being the time-domain displacement current record in the historical liquid crystal lens electrode driving state sequence, carrying the amplitude term of the displacement current in the frequency domain component. The target mechanical disturbance frequency band is a screening boundary established based on the frequency band of mechanical disturbance induced by the wearer's movement. The target mechanical disturbance frequency band is used to identify the displacement current frequency components related to wearing movements such as walking, running, and head rotation. The filtered displacement current amplitude sequence includes the extracted specified frequency component term and the retained target displacement current amplitude term, and is output to S3 for mechanical disturbance sliding window statistics.

[0030] S201: Extract the instantaneous displacement current value from the historical liquid crystal lens plate driving state sequence, input the instantaneous displacement current value into the discrete Fourier transform function, perform transformation mapping processing on the time domain data to frequency domain data of the instantaneous displacement current value, and obtain the set of displacement current frequency component amplitude values. In this embodiment, the Discrete Fourier Transform (DFT) function is a processing function for converting time-domain displacement current records to frequency-domain component records. Its setting is based on the acquisition cycle frequency of the historical liquid crystal lens electrode driving state sequence and the total length of the time-domain data sequence of instantaneous displacement current values. The acquisition cycle frequency represents the time rhythm at which the circuit interface forms the time-domain acquisition record, and the total length of the time-domain data sequence represents the range of continuous displacement current records that can enter the frequency-domain transformation. Both together define the boundary of the frequency-domain component arrangement.

[0031] Before executing S201, instantaneous displacement current values ​​are read from the historical liquid crystal lens electrode driving state sequence, and it is verified whether these instantaneous displacement current values ​​come from the same continuous state segment. For time-domain data segments with acquisition gaps or interface abnormal states, the continuous part with traceable sources is retained, and the abnormal state is transmitted along with the data segment. The discrete Fourier transform function extracts the set of displacement current frequency component amplitudes according to the time-domain record arrangement order, and outputs it to S202 as input for target mechanical disturbance frequency band filtering.

[0032] S202: Obtain the preset upper limit vibration frequency value and lower limit vibration frequency value representing the frequency band of mechanical disturbance induced by the wearer's movement, filter the displacement current frequency component amplitude values ​​located between the upper limit vibration frequency value and the lower limit vibration frequency value in the displacement current frequency component amplitude set, and obtain the mid-range vibration frequency band amplitude value. The preset upper and lower limit vibration frequency values ​​are determined based on the frequency band of mechanical disturbances induced by the wearer's movement. The mechanical disturbances induced by the wearer's movement include at least one of walking, running, and head rotation. In this embodiment, the upper and lower limit vibration frequency values ​​serve as boundary conditions for the target mechanical disturbance frequency band, used to identify frequency domain components related to the wearing movement from the set of displacement current frequency component amplitudes.

[0033] The screening process reads the displacement current frequency component amplitude set according to the frequency component arrangement. Each frequency component is compared with the boundary conditions of the target mechanical disturbance frequency band, retaining the displacement current frequency component amplitude located between the upper and lower vibration frequency values. If a frequency component lacks an amplitude record, its frequency identifier cannot be resolved, or it does not belong to the target mechanical disturbance frequency band, it is not included in the mid-range vibration frequency band amplitude measurement, and a screening exclusion state is formed. The mid-range vibration frequency band amplitude measurement serves as the input to S203, carrying the displacement current frequency component amplitudes retained after screening by the target mechanical disturbance frequency band.

[0034] S203: Combine the displacement current frequency component amplitudes in the mid-range vibration frequency band according to the frequency from front to back to generate a filtered displacement current amplitude sequence.

[0035] The sorting rules are based on frequency order, with the input being the amplitude of the mid-range vibration frequency band. The processing action involves combining the corresponding amplitude items into a continuous sequence according to the frequency component arrangement, and the output is the filtered displacement current amplitude sequence. This sequence is used as input for the mechanical disturbance sliding window statistics in subsequent steps, ensuring that S3 only processes displacement current amplitude items that have passed the target mechanical disturbance frequency band screening.

[0036] During the combination process, if there are amplitude items with repeated frequency identifiers in the amplitude values ​​of the mid-range vibration frequency band, traceable items are retained based on the frequency domain source relationship, and the duplicate items are recorded as combination exclusion status. If no amplitude items are available for statistical analysis using the mechanical disturbance sliding window after screening, an empty sequence status and screening exclusion record are output, and S3 proceeds to disturbance feature restricted processing accordingly. The filtered displacement current amplitude sequence carries both the specified frequency component item and the target displacement current amplitude item, which are read by the mechanical disturbance sliding window in frequency order.

[0037] Please see Figure 1 and Figure 4 S3: The mechanical disturbance characteristic quantity is obtained by performing mechanical disturbance sliding window statistics on the selected displacement current amplitude sequence, and the liquid crystal polarization potential value is obtained by combining the instantaneous liquid crystal lens plate driving voltage value in the historical liquid crystal lens plate driving state sequence. Then, the refractive index distortion compensation parameter is generated according to the preset material elastic-optical tensor coefficient. The mechanical disturbance sliding window statistics are a processing rule that moves along the filtered displacement current amplitude sequence, reads the frequency component amplitude, and performs weighted cumulative statistics. The input object is the filtered displacement current amplitude sequence output by S203, and the output object is the mechanical disturbance characteristic quantity. The mechanical disturbance characteristic quantity is an intermediate parameter characterizing the influence of the wearer's movement on the dielectric fluctuation between the liquid crystal lens plates. The liquid crystal polarization potential value is a polarization state parameter formed by the cumulative integration of the instantaneous liquid crystal lens plate driving voltage value in the historical liquid crystal lens plate driving state sequence over the circuit acquisition and operation timeline. The refractive index distortion compensation parameter is a compensation amount obtained by mapping the mechanical disturbance characteristic quantity, the liquid crystal polarization potential value, and the preset material elastic-optical tensor coefficient, and is output to S4 for the generation of the target peak voltage value.

[0038] S301: Input the filtered displacement current amplitude sequence into the preset mechanical disturbance sliding window, extract the amplitude of each frequency component in the window and perform weighted cumulative statistics to obtain the mechanical disturbance characteristic quantity; The preset mechanical disturbance sliding window is the processing range for reading the frequency component amplitude along the filtered displacement current amplitude sequence. Its data source is the specified frequency component item and the target displacement current amplitude item output by S203. In this embodiment, weighted cumulative statistics means that the amplitude items within the window are cumulatively processed according to the engineering influence relationship of the frequency components within the target mechanical disturbance frequency band, so that the mechanical disturbance characteristic quantity carries the comprehensive influence of the mechanical disturbance on the displacement current within the window.

[0039] When executing S301, the window reading order is first determined based on the frequency arrangement of the filtered displacement current amplitude sequence, and then the amplitude of each frequency component within the window is extracted. If the input is an empty sequence, the mechanical disturbance sliding window does not generate a complete disturbance characterization, but instead outputs a disturbance characteristic limitation state, and this state is passed to S303. If there are unresolvable amplitude items within the window, the resolution failure state is first marked, and then the resolution-verified amplitude items are used to form the mechanical disturbance characteristic quantity. The resolution failure state is synchronously written into the interface operation record.

[0040] S302: Calculate the cumulative integral value of the instantaneous liquid crystal lens plate driving voltage value in the historical liquid crystal lens plate driving state sequence on the corresponding circuit acquisition time line to obtain the liquid crystal polarization potential value. The input source for the liquid crystal polarization potential is the instantaneous liquid crystal lens plate driving voltage value in the historical liquid crystal lens plate driving state sequence established in S103. The processing object is the voltage acquisition item within the continuous state segment, and the purpose of the processing is to characterize the cumulative effect of the polarization state of liquid crystal molecules under the action of the electric field between the liquid crystal lens plates. After this parameter is formed, it is also used as the input for the refractive index distortion compensation parameter generated in S303, and as the input for the polarization compensation coefficient generated in S402.

[0041] In S302, the instantaneous liquid crystal lens plate driving voltage value is first read along the circuit's operating timeline, and then the consistency between the continuous state segment and the interface state identifier is checked. If there is a gap in the voltage state record, the gap state is retained and transmitted to the state identifier of the liquid crystal polarization potential value. Subsequently, S402 can identify the completeness of the polarization input when generating the polarization compensation coefficient. The liquid crystal polarization potential value does not replace the basic sustaining voltage value corresponding to the target focal length; its functional boundary is limited to polarization state characterization and compensation processing input.

[0042] S303: Based on the mechanical disturbance characteristic quantity, the liquid crystal polarization potential value and the preset material elastic-optical tensor coefficient, a mapping calculation is performed to generate the refractive index distortion compensation parameter.

[0043] The preset material elastic-optical tensor coefficient is the engineering correspondence coefficient between mechanical deformation and refractive index change of the eyeglass liquid crystal lens material. Its source categories are lens material characteristic calibration records and material process parameter records. The participating element is the compensation mapping between the influence of mechanical disturbance and the liquid crystal polarization state. S303 generates refractive index distortion compensation parameters based on the disturbance influence characterized by mechanical disturbance characteristics, the polarization state characterized by the liquid crystal polarization potential value, and the material response relationship characterized by the material elastic-optical tensor coefficient.

[0044] If the mechanical disturbance characteristic quantity has a restricted disturbance characteristic state, S303 generates a refractive index distortion compensation parameter with a restricted characteristic mark and passes the restricted characteristic mark to S401, so that the target peak voltage value generation process can identify the compensation source state. If the material's elastic-optical tensor coefficient lacks a traceable source or does not match the current lens material record, the refractive index distortion compensation parameter does not enter the target peak voltage value generation process, but instead outputs a compensation unavailable state. The scope of the refractive index distortion compensation parameter is limited to participating in the generation of the target peak voltage value, and does not directly change the circuit interface acquisition rules.

[0045] Please see Figure 1 and Figure 5 S4: Obtain the basic sustaining voltage value of the wearable glasses liquid crystal lens corresponding to the target focal length, and calculate the target peak voltage value in combination with the refractive index distortion compensation parameter. At the same time, obtain the liquid crystal lens plate drive pulse width value and liquid crystal lens plate drive duty cycle value, adjust the discrete pulse charge and discharge control of the glasses liquid crystal lens, and obtain the power consumption optimization control result. The base sustaining voltage value of the wearable glasses' liquid crystal lens corresponding to the target focal length is a voltage state object matching the current target focal length, derived from the glasses' liquid crystal lens drive control record. The target peak voltage value is a pulse amplitude control object generated by combining the base sustaining voltage value with refractive index distortion compensation parameters. The liquid crystal lens electrode drive pulse width value and liquid crystal lens electrode drive duty cycle value are pulse shape control objects in the electrode drive pulse width and duty cycle parameters, which are subsequently combined with the target peak voltage value to generate the liquid crystal lens electrode drive voltage pulse sequence.

[0046] S401: Obtain the basic sustaining voltage value of the eyeglass liquid crystal lens corresponding to the target focal length, calculate the difference between the basic sustaining voltage value of the eyeglass liquid crystal lens and the refractive index distortion compensation parameter, and obtain the target peak voltage value. The base sustaining voltage value of the eyeglass liquid crystal lens is obtained from the drive sustaining record corresponding to the target focal length. The refractive index distortion compensation parameter is obtained from the compensation amount output by S303. The target peak voltage value is used to construct the liquid crystal lens electrode drive voltage pulse sequence. The processing action of S401 is limited to calculating the difference between the base sustaining voltage value of the eyeglass liquid crystal lens and the refractive index distortion compensation parameter to obtain the target peak voltage value, which is used for subsequent discrete pulse charge and discharge control.

[0047] Before generating the target peak voltage value, the refractive index distortion compensation parameter is checked for a compensation unavailable state. If compensation is unavailable, the abnormal compensation amount is not written into the target peak voltage generation process; instead, the base sustaining voltage path state is output and passed to S403. If the refractive index distortion compensation parameter has a restricted flag, the target peak voltage value also carries the restricted flag, and subsequent discrete pulse charge / discharge control commands undergo interface confirmation before output.

[0048] S402: Obtain the liquid crystal polarization potential value and the preset reference polarization potential value, calculate the ratio between the two as the polarization compensation coefficient, and simultaneously obtain the preset liquid crystal lens plate reference pulse width value and the liquid crystal lens plate reference duty cycle value, calculate the product of the liquid crystal lens plate reference pulse width value and the polarization compensation coefficient, calculate the product of the liquid crystal lens plate reference duty cycle value and the polarization compensation coefficient, and establish the plate driving pulse width and duty cycle parameters. The reference polarization potential is determined based on the initial dielectric constant of the liquid crystal lens in a state without external mechanical deformation and the standard electric field strength parameter corresponding to the target focal length. The reference pulse width of the liquid crystal lens electrode is determined based on the deflection response time parameter of the liquid crystal molecules inside the liquid crystal lens and the clock period parameter of the circuit interface. The reference duty cycle of the liquid crystal lens electrode is determined based on the quantitative ratio between the basic sustaining voltage of the liquid crystal lens and the maximum rated output voltage amplitude of the circuit interface.

[0049] The polarization compensation coefficient is a parameter for correcting the polarization state formed by the liquid crystal polarization potential value relative to the reference polarization potential value. Its input sources are the liquid crystal polarization potential value output from S302 and the preset reference polarization potential value. The output destination is the generation process of the liquid crystal lens plate driving pulse width and duty cycle value. If the liquid crystal polarization potential value has a notch, the polarization compensation coefficient will have a polarization input limitation indicator. This indicator will also be included with the plate driving pulse width and duty cycle parameters when output to S403, for confirmation processing before triggering the circuit interface output.

[0050] S403: Call the target peak voltage value and the liquid crystal lens plate driving pulse width and duty cycle value from the plate driving pulse width and duty cycle parameters, use them as building elements to generate a liquid crystal lens plate driving voltage pulse sequence, output the liquid crystal lens plate driving voltage pulse sequence to the circuit interface to execute the discrete pulse charging and discharging control command of the eyeglass liquid crystal lens, and obtain the power consumption optimization control result.

[0051] The liquid crystal lens plate driving voltage pulse sequence is a control command sequence executable by the circuit interface. It carries the combined result of the target peak voltage value, the liquid crystal lens plate driving pulse width value, and the liquid crystal lens plate driving duty cycle value. The output direction is the circuit interface driving terminal, and the object of action is the liquid crystal lens plate of the glasses. The power consumption optimization control result is a state record after the control is executed, including the pulse sequence source, control command confirmation status, and target focus maintenance status.

[0052] Before outputting control commands, the target peak voltage, liquid crystal lens plate drive pulse width, and liquid crystal lens plate drive duty cycle are verified to have source identifiers. If any component is missing or carries an unavailable state, the circuit interface does not execute the discrete pulse charge / discharge control command, but instead returns to an unacknowledged control command state, retaining the basic sustaining voltage path state for safe degradation control reading. If the component is complete, the circuit interface outputs discrete pulse charge / discharge control commands to the liquid crystal lens plate of the glasses according to the liquid crystal lens plate drive voltage pulse sequence, so that the liquid crystal lens maintains the target focal length by using discrete pulse charge / discharge control instead of continuous unnecessary drive output.

[0053] Please see Figure 1 and Figure 6 S5: Obtain the instantaneous power dissipation value in the historical liquid crystal lens plate driving state sequence, obtain the remaining driving energy state set through time integration, perform constraint optimization on the remaining driving energy state set, and obtain the safety degradation control result.

[0054] The remaining drive energy state set includes a sequence of drive energy state values ​​calculated by time window. The input sources are the instantaneous power dissipation values ​​within the historical liquid crystal lens electrode drive state sequence and the current remaining charge value read from the battery detection interface. Constraint optimization involves selecting drive energy state values ​​and combining them into a degradation path within the safe degradation range jointly defined by the current bias state reference and the power-off reference. The output is the minimum disturbance degradation path, the progressive perturbation attenuation waveform term, and the target focus-maintaining state after execution. The safe degradation control result includes the progressive perturbation attenuation waveform term and the target focus-maintaining state after execution.

[0055] S501: Read the current remaining power value of the power supply battery through the battery detection interface, compare the current remaining power value with the preset safety degradation power threshold, and if the current remaining power value is lower than the safety degradation power threshold, obtain the integral value of the instantaneous power dissipation value over time in the historical liquid crystal lens plate driving state sequence, and establish a set of remaining driving energy states. The battery detection interface reads the remaining power status of the power supply battery. The input source is the power supply battery management record, and the output is the current remaining power value. The preset safety degradation power threshold is the power status boundary that triggers safety degradation control, derived from the focus maintenance safety strategy of the glasses' LCD lenses. The remaining drive energy state set is a set of drive energy states established after safety degradation is triggered, based on the integral of the instantaneous power dissipation value over time. Its output is directed to the S502 constraint optimization process.

[0056] Before establishing the remaining drive energy state set, it is first confirmed whether the current remaining power value returned by the battery detection interface has a valid state identifier. If the battery detection interface returns an error, fails to read, or the power state cannot be parsed, the buck relaxation control command is not directly triggered. Instead, an abnormal battery detection state is output, and the previously confirmed focus maintenance state is maintained. If the current remaining power value is lower than the preset safety degradation power threshold, the instantaneous power dissipation value within the historical liquid crystal lens plate drive state sequence is read, and a drive energy state value sequence is generated according to the time window. Each drive energy state value in the set retains the corresponding power dissipation source and time window source.

[0057] S502: Extract each drive energy state value in the remaining drive energy state set, perform constraint optimization processing, compare the drive energy state value with the preset current bias state reference value and the power-off reference value, filter the drive energy state values ​​within the range defined by the two reference values, and combine and splice them in the degradation order to generate the minimum disturbance degradation path. The current bias state reference value is determined based on the instantaneous power dissipation value in the historical liquid crystal lens electrode driving state sequence and the equivalent capacitance parameter between the liquid crystal lens electrodes at the corresponding acquisition time. The power-off reference value is determined based on the internal liquid crystal molecule zero-field energy characterization value of the eyeglass liquid crystal lens in the power-off state and the noise floor distribution parameter of the circuit interface. The current bias state reference value characterizes the energy reference boundary required for the lens to maintain its focal length under the current driving bias, while the power-off reference value characterizes the downward reference boundary jointly defined by the liquid crystal molecule zero-field energy and the circuit noise floor when the lens enters the power-off state.

[0058] The constraint optimization process first reads the drive energy state values ​​from the remaining drive energy state set item by item. Then, it compares the magnitude relationship of each drive energy state value with the preset current bias state reference value and the power-off reference value, retaining drive energy state values ​​that are within the range defined by the two reference values ​​and have source identification. If the source of a drive energy state value is missing, the time window is discontinuous, or the magnitude relationship cannot be confirmed, it is marked as a degradation path exclusion state. When combining and splicing in the degradation order, the drive energy state values ​​are connected according to the control sequence of transition from the current bias state to the power-off reference state to form a minimum disturbance degradation path.

[0059] S503: Extract the voltage value corresponding to each driving energy state value in the minimum disturbance degradation path, perform permutation and combination operations in chronological order to generate a progressively decreasing perturbation attenuation waveform, output the progressively decreasing perturbation attenuation waveform to the circuit interface, and perform a step-down relaxation control command operation on the liquid crystal lens of the glasses to obtain the safety degradation control result.

[0060] The progressive perturbation attenuation waveform term is a degradation control waveform formed by the voltage values ​​corresponding to each driving energy state value within the minimum perturbation degradation path, arranged in chronological order. The input source is the minimum perturbation degradation path output from S502, the output direction is the circuit interface, and the target is the LCD lens plate of the eyeglasses. The target maintained focus state after execution is a record of the lens's maintained focus state after the buck relaxation control command operation is completed. Together with the progressive perturbation attenuation waveform term, this constitutes the safe degradation control result.

[0061] When generating the progressive perturbation attenuation waveform, the system first checks whether the minimum perturbation degradation path contains continuous drive energy state values ​​and their corresponding voltage values. If the path is interrupted or the source of the voltage value cannot be traced, the circuit interface does not execute the buck relaxation control command operation, but instead returns to the degradation path unconfirmed state and retains the current focus maintenance control record. If the path is continuous and the source is complete, the circuit interface receives the progressive perturbation attenuation waveform and executes the buck relaxation control command operation in chronological order, causing the eyeglass liquid crystal lens to transition from the current bias state to the target focus maintenance state. The safety degradation control result is written to the interface operation record, which includes the source of the progressive perturbation attenuation waveform, the control command confirmation status, the target focus maintenance state, and the abnormal state indicator. This allows for continued reading of the historical liquid crystal lens plate drive state sequence and the formation of new power consumption optimization control results during subsequent focus maintenance.

[0062] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A method for optimizing power consumption and controlling safety degradation of a low-voltage driven adjustable focus lens, characterized in that, Includes the following steps: S1: Obtain the instantaneous liquid crystal lens plate driving voltage value and instantaneous displacement current value, and calculate the corresponding instantaneous power dissipation value, and combine them into a historical liquid crystal lens plate driving state sequence. S2: Obtain the instantaneous displacement current value in the historical liquid crystal lens plate driving state sequence, extract the displacement current frequency component amplitude set through frequency domain transformation processing, filter the target mechanical disturbance frequency band in the displacement current frequency component amplitude set, and generate the filtered displacement current amplitude sequence. S3: The mechanical disturbance characteristic quantity is obtained by performing mechanical disturbance sliding window statistics on the filtered displacement current amplitude sequence, and the liquid crystal polarization potential value is obtained by combining the instantaneous liquid crystal lens plate driving voltage value in the historical liquid crystal lens plate driving state sequence. Then, the refractive index distortion compensation parameter is generated according to the preset material elastic-optical tensor coefficient. S4: Obtain the basic sustaining voltage value of the wearable glasses liquid crystal lens corresponding to the target focal length, and calculate the target peak voltage value in combination with the refractive index distortion compensation parameter. At the same time, obtain the liquid crystal lens plate driving pulse width value and the liquid crystal lens plate driving duty cycle value, adjust the discrete pulse charging and discharging control of the glasses liquid crystal lens, and obtain the power consumption optimization control result. S5: Obtain the instantaneous power dissipation value in the historical liquid crystal lens plate driving state sequence, obtain the remaining driving energy state set through time integration, perform constraint optimization on the remaining driving energy state set, and obtain the safety degradation control result.

2. The low-voltage driven adjustable focus lens power consumption optimization and safety degradation control method according to claim 1, characterized in that, The historical liquid crystal lens electrode driving state sequence includes the instantaneous liquid crystal lens electrode driving voltage value, the instantaneous displacement current value, and the instantaneous power dissipation value recorded in time sequence. The filtered displacement current amplitude sequence includes the extracted specified frequency component and the retained target displacement current amplitude. The refractive index distortion compensation parameter is specifically a compensation amount obtained by mapping mechanical disturbance characteristics, liquid crystal polarization potential value, and preset material elastic-optical tensor coefficient. The remaining driving energy state set includes a driving energy state value sequence calculated according to a time window. The safety degradation control result includes the progressive perturbation attenuation waveform term and the target focus maintenance state after execution.

3. The low-voltage driven adjustable focus lens power consumption optimization and safety degradation control method according to claim 1, characterized in that, Step S1 is as follows: S101: During the steady-state focal length maintenance period of the liquid crystal lens of the glasses, the instantaneous liquid crystal lens plate driving voltage value and the instantaneous displacement current value corresponding to the dielectric fluctuation between the liquid crystal lens plates are continuously collected through the circuit interface to establish an instantaneous power supply fluctuation parameter set. S102: Calculate the product of the instantaneous liquid crystal lens plate driving voltage value and the instantaneous displacement current value at the same acquisition time in the instantaneous power supply fluctuation parameter set to obtain the instantaneous power dissipation value; S103: The instantaneous liquid crystal lens plate driving voltage value and instantaneous displacement current value, together with the instantaneous power dissipation value, from the instantaneous power supply fluctuation parameter set are used as sorting items and arranged in the time dimension according to the chronological order of their respective corresponding circuit interface acquisition time to establish a historical liquid crystal lens plate driving state sequence.

4. The low-voltage driven adjustable focus lens power consumption optimization and safety degradation control method according to claim 1, characterized in that, Step S2 is as follows: S201: Extract the instantaneous displacement current value from the historical liquid crystal lens plate driving state sequence, input the instantaneous displacement current value into the discrete Fourier transform function, perform transformation mapping processing on the time domain data to frequency domain data of the instantaneous displacement current value, and obtain the set of displacement current frequency component amplitude values. S202: Obtain the preset upper limit vibration frequency value and lower limit vibration frequency value representing the frequency band of mechanical disturbance induced by the wearer's movement, filter the displacement current frequency component amplitude values ​​located between the upper limit vibration frequency value and the lower limit vibration frequency value in the displacement current frequency component amplitude set, and obtain the mid-range vibration frequency band amplitude. S203: Combine the displacement current frequency component amplitudes in the mid-section vibration frequency band amplitudes according to the frequency from front to back to generate a filtered displacement current amplitude sequence.

5. The low-voltage driven adjustable focus lens power consumption optimization and safety degradation control method according to claim 1, characterized in that, Step S3 is as follows: S301: Input the filtered displacement current amplitude sequence into a preset mechanical disturbance sliding window, extract the amplitude of each frequency component in the window and perform weighted cumulative statistics to obtain the mechanical disturbance characteristic quantity; S302: Calculate the cumulative integral value of the instantaneous liquid crystal lens plate driving voltage value in the historical liquid crystal lens plate driving state sequence on the corresponding circuit acquisition time line to obtain the liquid crystal polarization potential value. S303: Based on the mechanical disturbance characteristic quantity, the liquid crystal polarization potential value and the preset material elastic-optical tensor coefficient, a mapping calculation is performed to generate the refractive index distortion compensation parameter.

6. The low-voltage driven adjustable focus lens power consumption optimization and safety degradation control method according to claim 1, characterized in that, Step S4 is as follows: S401: Obtain the basic sustaining voltage value of the liquid crystal lens of the eyeglasses corresponding to the target focal length, calculate the difference between the basic sustaining voltage value of the liquid crystal lens of the eyeglasses and the refractive index distortion compensation parameter, and obtain the target peak voltage value. S402: Obtain the liquid crystal polarization potential value and the preset reference polarization potential value, calculate the ratio of the two as the polarization compensation coefficient, and at the same time obtain the preset liquid crystal lens plate reference pulse width value and the liquid crystal lens plate reference duty cycle value, calculate the product of the liquid crystal lens plate reference pulse width value and the polarization compensation coefficient, calculate the product of the liquid crystal lens plate reference duty cycle value and the polarization compensation coefficient, and establish the plate driving pulse width and duty cycle parameters. S403: The target peak voltage value and the liquid crystal lens electrode driving pulse width and duty cycle value in the electrode driving pulse width and duty cycle parameters are called as building elements to generate a liquid crystal lens electrode driving voltage pulse sequence. The liquid crystal lens electrode driving voltage pulse sequence is output to the circuit interface to execute the discrete pulse charging and discharging control command of the eyeglass liquid crystal lens to obtain the power consumption optimization control result.

7. The low-voltage driven adjustable focus lens power consumption optimization and safety degradation control method according to claim 1, characterized in that, Step S5 is as follows: S501: Read the current remaining power value of the power supply battery through the battery detection interface, compare the current remaining power value with the preset safety degradation power threshold, and if the current remaining power value is lower than the safety degradation power threshold, obtain the integral value of the instantaneous power dissipation value over time in the historical liquid crystal lens plate driving state sequence, and establish a set of remaining driving energy states. S502: Extract each drive energy state value in the remaining drive energy state set, perform constraint optimization processing, compare the drive energy state value with the preset current bias state reference value and the power-off reference value, filter the drive energy state values ​​within the range defined by the two reference values, and combine and splice them in the degradation order to generate the minimum disturbance degradation path. S503: Extract the voltage value corresponding to each driving energy state value in the minimum disturbance degradation path, perform permutation and combination operations in chronological order to generate a progressively decreasing perturbation attenuation waveform, output the progressively decreasing perturbation attenuation waveform to the circuit interface, and perform a step-down relaxation control command operation on the liquid crystal lens of the glasses to obtain the safety degradation control result.

8. The low-voltage driven adjustable focus lens power consumption optimization and safety degradation control method according to claim 3, characterized in that, The circuit interface is a flexible printed circuit connection terminal that integrates a voltage and current synchronous sampling circuit with a dual-channel analog-to-digital converter chip.

9. The low-voltage driven adjustable focus lens power consumption optimization and safety degradation control method according to claim 4, characterized in that, The discrete Fourier transform function is set according to the acquisition cycle frequency of the historical liquid crystal lens plate driving state sequence and the total length of the time domain data sequence of the instantaneous displacement current value.

10. The low-voltage driven adjustable focus lens power consumption optimization and safety degradation control method according to claim 4, characterized in that, The preset upper limit vibration frequency value and lower limit vibration frequency value are determined based on the frequency band of mechanical disturbances induced by the wearer's movement, which includes at least one of walking, running and head turning.

11. The low-voltage driven adjustable focus lens power consumption optimization and safety degradation control method according to claim 6, characterized in that, The reference polarization potential value is determined based on the initial dielectric constant of the liquid crystal lens of the eyeglasses under a state of no external mechanical deformation and the standard electric field strength parameter corresponding to the target focal length. The reference pulse width value of the liquid crystal lens electrode is determined based on the deflection response time parameter of the liquid crystal molecules inside the eyeglass liquid crystal lens and the clock cycle parameter of the circuit interface. The duty cycle value of the liquid crystal lens electrode is determined based on the quantitative ratio between the basic sustaining voltage value of the liquid crystal lens and the maximum rated output voltage amplitude of the circuit interface.

12. The low-voltage driven adjustable focus lens power consumption optimization and safety degradation control method according to claim 7, characterized in that, The current bias state reference value is determined based on the instantaneous power dissipation value in the historical liquid crystal lens plate driving state sequence and the equivalent capacitance parameter between the liquid crystal lens plates at the corresponding acquisition time. The power-off reference value is determined based on the zero-field energy characterization value of the internal liquid crystal molecules in the eyeglass liquid crystal lens under power-off state and the noise floor distribution parameter of the circuit interface.

13. A focusable lens control system for implementing the method according to any one of claims 1-12, characterized in that, include: Voltage and current synchronous acquisition unit, frequency domain analysis unit, disturbance feature calculation unit, pulse drive unit, battery status detection unit, safety degradation control unit and main control unit; The voltage and current synchronous acquisition unit is used to acquire the instantaneous liquid crystal lens plate driving voltage value and instantaneous displacement current value; The frequency domain analysis unit is used to perform frequency domain transformation on the instantaneous displacement current value and filter the target mechanical disturbance frequency band; The disturbance feature calculation unit is used to generate refractive index distortion compensation parameters based on the selected displacement current amplitude sequence, liquid crystal polarization potential value and material elastic-optical tensor coefficient. The pulse driving unit is used to output a liquid crystal lens plate driving voltage pulse sequence according to the target peak voltage value, the liquid crystal lens plate driving pulse width value and the liquid crystal lens plate driving duty cycle value. The battery status detection unit is used to detect the current remaining power value of the power supply battery; The safety degradation control unit is used to generate a minimum disturbance degradation path based on the set of remaining driving energy states when the current remaining power value is lower than the preset safety degradation power threshold. The main control unit is used to coordinate the above-mentioned units to complete power consumption optimization control and security degradation control.

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