WO2021121171A1 - 电致变色器件的控制方法、装置、设备及存储介质 - Google Patents
电致变色器件的控制方法、装置、设备及存储介质 Download PDFInfo
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- 238000002834 transmittance Methods 0.000 claims abstract description 228
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/04—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of a single character by selection from a plurality of characters, or by composing the character by combination of individual elements, e.g. segments using a combination of such display devices for composing words, rows or the like, in a frame with fixed character positions
- G09G3/16—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of a single character by selection from a plurality of characters, or by composing the character by combination of individual elements, e.g. segments using a combination of such display devices for composing words, rows or the like, in a frame with fixed character positions by control of light from an independent source
- G09G3/19—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of a single character by selection from a plurality of characters, or by composing the character by combination of individual elements, e.g. segments using a combination of such display devices for composing words, rows or the like, in a frame with fixed character positions by control of light from an independent source using electrochromic devices
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/15—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on an electrochromic effect
- G02F1/163—Operation of electrochromic cells, e.g. electrodeposition cells; Circuit arrangements therefor
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2330/00—Aspects of power supply; Aspects of display protection and defect management
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2330/00—Aspects of power supply; Aspects of display protection and defect management
- G09G2330/02—Details of power systems and of start or stop of display operation
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- G—PHYSICS
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- G09G2330/12—Test circuits or failure detection circuits included in a display system, as permanent part thereof
Definitions
- This application relates to the technical field of electrochromic devices, for example, to a control method, device, equipment, and storage medium of an electrochromic device.
- Electrochromic devices need to control the reversible electrochemical oxidation-reduction reaction of materials in the device by applying voltage or current, so as to adjust the transmittance or reflectivity of the device.
- constant voltage using a specific voltage for a certain period of time
- constant current using a specific current for a certain period of time
- This simple form of charging and discharging will bring about a series of problems, such as uneven discoloration of the device, slow discoloration speed, and short cycle life.
- a constant current charging and discharging method is generally adopted, and the transmittance of the control device is controlled by monitoring the induced potential reached at two points in the device or calculating the total charge and discharge during charging.
- the induced potential reaches the set value
- the device's induced potential is maintained by continuously applying a constant voltage to the device to maintain the device's transmittance unchanged.
- the disadvantage of the related technology is that electrodes must be drawn from the device to monitor the induced potential during charging and discharging, and then the reaction current generated by the two poles of the device is monitored to calculate the reaction charge, thereby making a logical decision.
- the potential distribution on the transparent conductive electrode is uneven, and the potential near the power input poles is high, which causes the power pole area to change color first, and because the transparent conductive electrode has a large internal resistance, it is far away from the electrode.
- the electric potential is low, and the color-changing material cannot have enough voltage to react. It is manifested by the inconsistency between the transmittance of the polar region and the discoloration of the central region. It takes a longer waiting time for the center to slowly reach the required transmittance.
- the transmittance of the entire electrochromic device tends to be uniform. This problem is generally referred to as the "iris effect".
- the present application provides a control method, device, equipment and storage medium of an electrochromic device, so as to achieve uniform color change and an increase in the life of the electrochromic device.
- a control method of an electrochromic device which includes:
- the external power supply is controlled to charge and discharge the electrochromic device in the first mode until the current transmittance of the electrochromic device The overrate reaches the preset transmittance;
- the external power supply is controlled to charge and discharge the electrochromic device in the second mode to make the electrochromic device
- the current open circuit potential of the device continues to be within the preset open circuit potential threshold range.
- a control device of the electrochromic device comprising:
- a judging module configured to judge whether the current transmittance of the electrochromic device reaches a preset transmittance
- the first charging and discharging module is configured to control the external power supply to charge and discharge the electrochromic device in the first mode in response to the current transmittance of the electrochromic device not reaching the preset transmittance, until the current transmittance of the electrochromic device has not reached the preset transmittance.
- the current transmittance of the electrochromic device reaches the preset transmittance;
- a potential determination module configured to suspend charging and discharging in response to the current transmittance of the electrochromic device reaching the preset transmittance, and continuously monitor whether the current open circuit potential of the electrochromic device is in the preset open circuit Within the potential threshold range;
- the second charging and discharging module is configured to control the external power supply to charge and discharge the electrochromic device in the second mode when the current open circuit potential of the electrochromic device is not within the preset open circuit potential threshold range , So that the current open circuit potential of the electrochromic device is continuously within the preset open circuit potential threshold range.
- a dimming device is also provided, and the device includes:
- One or more processors are One or more processors;
- Storage device set to store one or more programs
- the one or more processors realize the control method of the electrochromic device described above.
- a storage medium is also provided, and a computer program is stored thereon, the computer program includes program instructions, and when the program instructions are executed by a processor, the above-mentioned control method of the electrochromic device is realized.
- FIG. 1 is a flowchart of a control method of an electrochromic device according to Embodiment 1 of the application;
- FIG. 2 is a flowchart of a method for controlling an electrochromic device according to the second embodiment of the application
- FIG. 3 is a schematic structural diagram of a control device for an electrochromic device according to a third embodiment of the present application.
- FIG. 4 is a schematic structural diagram of a dimming device provided in Embodiment 4 of this application.
- first”, “second”, etc. may be used herein to describe various directions, actions, steps or elements, etc., but these directions, actions, steps or elements are not limited by these terms. These terms are only used to distinguish a first direction, action, step or element from another direction, action, step or element.
- the first mode may be referred to as the second mode, and similarly, the second mode may be referred to as the first mode. Both the first mode and the second mode are modes, but they are not the same mode.
- the terms “first”, “second”, etc. cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features.
- the features defined with “first” and “second” may explicitly or implicitly include one or more of these features.
- “plurality” means at least two, such as two, three, etc., unless otherwise defined.
- Fig. 1 is a flow chart of a method for controlling an electrochromic device according to the first embodiment of the application. This embodiment can be applied to control the stable transmittance of the electrochromic device and includes the following steps:
- Step 100 Determine whether the current transmittance of the electrochromic device reaches a preset transmittance.
- the electrochromic device can be configured as electrochromic rearview mirrors, electrochromic smart windows, electrochromic glasses, etc. various dimming devices.
- the electrochromic device generally controls the material in the electrochromic device to produce reversible electrochemical oxidation-reduction by applying a voltage or current, thereby controlling the change in the transmittance of the resistive color changing device.
- the current transmittance of the electrochromic device may be changed due to some factors, such as changes in the ambient temperature, the duration of use of the device, etc., causing the current transmittance of the electrochromic device to fail to reach the preset transmittance; or In other cases, when the value of the preset transmittance is adjusted, the current transmittance of the electrochromic device cannot reach the preset transmittance. Therefore, it is necessary to monitor whether the current transmittance of the electrochromic device is within the preset transmittance range in real time.
- Step 110 If the current transmittance of the electrochromic device does not reach the preset transmittance, control the external power supply to charge and discharge the electrochromic device in the first mode until the current transmittance of the electrochromic device The transmittance reaches the preset transmittance.
- the first mode charging and discharging or the second mode charging and discharging include: constant voltage charging and discharging, constant current charging and discharging, pulse charging and discharging, and/or sweeping charging and discharging.
- Pulse charging and discharging include multiple pulse sections and multiple intermittent sections.
- the multiple pulse sections and multiple intermittent sections are distributed at intervals.
- the duration of each pulse section and each intermittent section is relatively short, within 0.001-20s, respectively.
- Sweep charging and discharging means that in the initial stage of charging, the partial pressure of the electrochromic device gradually rises, until it rises to a preset voltage, and then performs constant voltage charging.
- the external power supply scans the electrochromic device for charging and discharging, which can be achieved by connecting a fixed resistor in series with the electrochromic device in the circuit.
- the internal resistance of the electrochromic device can be regarded as "0"
- the fixed resistance in the circuit shares the circuit voltage.
- the internal resistance of the electrochromic device increases, and its partial voltage in the circuit gradually rises.
- the internal resistance of the electrochromic device can be regarded as "infinite", sharing all voltages in the circuit, and forming a constant voltage charge.
- the following multiple charge and discharge forms can be obtained to charge the electrochromic device, so as to achieve
- the electrochromic device maintains the effect of a specific transmittance, and the color change of the electrochromic device is uniform, and the service life is greatly improved: constant voltage charge and discharge, instantaneous high voltage and constant voltage charge and discharge, instantaneous high current and constant voltage charge Discharge, constant current charge and discharge, instantaneous high voltage and constant current charge and discharge, instantaneous high current and constant current charge and discharge, forward constant voltage charge and discharge-a certain time of open circuit or reverse constant voltage charge and discharge-constant voltage charge and discharge cycle, Forward constant voltage charge and discharge-a certain time of open circuit or reverse constant current charge and discharge-constant voltage charge and discharge cycle, forward constant current charge and discharge-a certain time of open circuit or reverse constant voltage charge and discharge-constant current charge and discharge, positive Charge and discharge to constant
- the method for judging that the current transmittance of the electrochromic device reaches the preset transmittance includes: the number of charge and discharge charges of the electrochromic device reaches the preset value, and the electrochromic device The constant voltage or constant current output time of the device reaches the preset time or the output current of the electrochromic device is less than the preset cut-off current.
- the open circuit potential of the electrochromic device is used to determine whether it is necessary to charge and discharge the electrochromic device through a variety of charging and discharging methods such as constant current and constant voltage to maintain a certain transmittance and accurately adjust the electrochromic Device transmittance range.
- the transmittance is adjusted from a higher state to a lower state, or from a lower transmittance to a higher transmittance
- the electrochromic logic control board outputs a forward or reverse voltage to the electrochromic device Or the current causes the oxidation-reduction reaction to change the transmittance state of the electrochromic device.
- the logic control board determines when to stop the output based on the number of charges transferred or by detecting the internal open-circuit potential of the device, so as to achieve the effect of adjusting the transmittance range of the electrochromic device, and at the same time protect the device from overcharging and overdischarging the device.
- the logic control board needs a voltage detection sensor to detect the open circuit voltage and open circuit potential of the device. After receiving the instruction to adjust the transmittance of the device (darkening or brightening), the logic control board inputs voltage or current to the electrochromic device, and the current integrator detects the current transmitted to the electrochromic device and calculates the charge When the value meets the set number of charges, the voltage or current output is stopped.
- the voltage or current output is stopped. In some cases, when the electrochromic device is in or assumed to be in the required transmittance range, the voltage or current output is stopped. In some cases, when the electrochromic device reaches the specified open circuit voltage and open circuit potential level or is within the specified open circuit potential level range, the voltage or current output is stopped. In some cases, the power output is stopped after the specified constant voltage or constant current time is output.
- the electrochromic device In order to keep the electrochromic device in the specified transmittance range until the next instruction to change the transmittance range of the device is received, in some cases, when the amount of charge transferred reaches the required threshold or the open circuit potential of the device reaches the set threshold, change For the target voltage constant voltage output, the electrochromic device is always maintained at the target voltage to meet the requirements of maintaining the transmittance state, until the instruction to adjust the transmittance of the device is given again. Or when the amount of charge transferred reaches the required threshold or the open circuit potential of the device reaches the set threshold, the voltage or current output is stopped, and the voltage sensor continuously detects the change of the internal open circuit potential of the device, and controls the current open circuit potential of the electrochromic device to maintain the preset open circuit Within the potential threshold range.
- the electrochromic device when the current open-circuit potential of the electrochromic device is higher than the preset equilibrium potential of the electrochromic device, when the attenuation of the open-circuit potential reaches the set minimum threshold, the electrochromic device is re-adopted in the second mode to perform Charge until the current open-circuit potential of the device reaches the upper limit of the preset open-circuit potential threshold and stop the voltage or current output.
- Constant voltage charging and discharging mode The external power supply performs constant voltage charging and discharging of the electrochromic device.
- 1a In some cases, the current generated by the electrochromic device under constant voltage is detected by an integrator and the charge number is calculated. When the set number of charges is met, the charging and discharging of the electrochromic device is stopped.
- 1b In some cases, when the electrochromic device reaches the required transmittance, stop charging and discharging the electrochromic device.
- 1C in some cases, when the output of a predetermined length of time T n (eg0.01s ⁇ T n ⁇ 1000s), the electrochromic device stops charging and discharging. 1d.
- the current is detected, when the device current reaches the set value or range of the preset cut-off current I t (for example, 0.1A/m 2 ⁇ I t ⁇ 10A/m 2 ), the charging and discharging of the power supply is stopped.
- the preset cut-off current I t for example, 0.1A/m 2 ⁇ I t ⁇ 10A/m 2
- multiple tests are performed at the same time, and when one or any of the indicators in 1a-1d reach the set value at the same time, the charging and discharging of the electrochromic device is stopped.
- Constant current charge and discharge mode the external power supply charges and discharges the electrochromic device with constant current.
- 4a the current input by the power supply to the electrochromic device is detected by the integrator and the charge number is calculated. When a certain number of charges is reached, the charging and discharging of the electrochromic device is stopped. 4b. In some cases, when the electrochromic device reaches the required transmittance range, stop charging and discharging the electrochromic device. 4c. In some cases, when the output is for a specified period of time, the charging and discharging of the electrochromic device will be stopped. 4d.
- the voltage is detected, and when the device voltage reaches the set value or range of the constant voltage charge and discharge cut-off current I t , the charge and discharge of the electrochromic device will be stopped.
- multiple tests are performed at the same time, and when one or any of the indicators in 4a-4d reach the set value at the same time, the power supply charging and discharging will be stopped.
- the charging voltage or charging current can be higher than the electrochemical window voltage in a short time, that is, pulse charging is used to charge a large amount in a short time The charge causes the device transmittance to change rapidly in a short period of time.
- electrochromic devices like supercapacitors generally consist of double-electron-layer capacitors and Faraday pseudocapacitors.
- the characteristic of pseudocapacitance is that the adsorbed ions do not undergo an electrochemical reaction (redox reaction) with the atoms on the electrode, but charge transfer occurs.
- the ions in the solution lean against the surface of the electrode by means of physical adsorption, without generating or breaking chemical bonds. This process is reversible and very fast.
- the electrochromic device is charged by a high-voltage pulse for a short period of time. Although the input voltage is higher than the electrochemical stability window, the electrochromic material will not have irreversible negative reactions in a short period of time.
- the open circuit potential inside the device can be increased, and the overall transmittance of the device has a large change in a short time, so that the electrochromic device can be quickly changed color without damaging the electrochromic device.
- the following several charging and discharging modes combining pulse charging and discharging and constant voltage/constant current charging and discharging can be used to achieve the aforementioned effect of avoiding damage to the electrochromic device while realizing the effect of rapid discoloration of the electrochromic device.
- the external power supply performs instantaneous high-voltage and constant-voltage charging and discharging of electrochromic devices, where the instantaneous high voltage is higher than the electrochromic device applied in a short time (within 0.001-20s)
- the high voltage of the electrochemical stability window (eg2-40V), 2a in some cases, in a short time (within 0.001-20s), use a high voltage (eg2-40V) higher than the electrochemical stability window to perform the device Constant voltage charging and discharging, and then applying a voltage within the electrochemical stability window to the electrochromic device for constant voltage V f ( ⁇ 2.0V) charging and discharging.
- the current generated by the electrochromic device during the pressurization process is carried out through an integrator. Detect and calculate the number of charges, and when the value meets the set number of charges, stop charging and discharging the electrochromic device. 2b. In some cases, in a short period of time (within 0.001-20s), use a high voltage (eg2-40V) higher than the electrochemical stability window to charge and discharge the device at a constant voltage, and then apply a constant voltage to the electrochromic device. The voltage in the chemical stability window is charged and discharged at a constant voltage V f ( ⁇ 2.0V). When the electrochromic device reaches the required transmittance range, the charging and discharging of the electrochromic device will be stopped. 2c.
- a high voltage eg2-40V
- a high voltage (eg2-40V) higher than the electrochemical stability window to charge and discharge the device at a constant voltage, and then apply a constant voltage to the electrochromic device.
- the voltage in the chemical stability window is charged and discharged at a constant voltage V f ( ⁇ 2.0V), and when the output is for a specified period of time, the charging and discharging of the electrochromic device is stopped. 2d.
- V f constant voltage
- a high voltage (eg2-40V) higher than the electrochemical stability window to charge and discharge the device at a constant voltage, and then apply a constant voltage to the electrochromic device.
- the voltage in the chemical stability window is charged and discharged with a constant voltage V f ( ⁇ 2.0V).
- V f ⁇ 2.0V
- the current is detected.
- the device current reaches the preset cut-off current I t setting value or range, it stops Charging and discharging of electrochromic devices. In some cases, multiple tests are performed at the same time, and when one or any of the indicators in 2a-2d above reach the set value at the same time, the charging and discharging of the power supply is stopped.
- Instantaneous high current and constant voltage charging and discharging mode The external power supply performs instantaneous high current and constant voltage charging and discharging of the electrochromic device, 3a.
- high current eg1 -100A/m 2
- Charge and discharge the device with a constant current and then apply a voltage within the electrochemical stability window to the electrochromic device for constant voltage ( ⁇ 2.0V) charge and discharge.
- the electrochromic device is charged and discharged through the integrator.
- the current generated in the voltage process is detected and the charge number is calculated. When the value meets the set charge number, the charging and discharging of the electrochromic device is stopped. 3d.
- the current is detected.
- the electrochromic device is stopped. Discharge.
- multiple tests are performed at the same time, and when one or any of the above indicators in 3a-3d reach the set value at the same time, the charging and discharging of the power supply is stopped.
- Instantaneous high voltage and constant current charging and discharging modes where the instantaneous high voltage is a high voltage (eg2-40V) that is higher than the electrochemical stability window of the electrochromic device applied in a short time (within 0.001-20s): external power supply Perform instantaneous high voltage and constant current charge and discharge for electrochromic devices, 5a. In some cases, in a short time (within 0.001-20s), use a high voltage (eg2-40V) that is higher than the electrochemical stability window. The device performs constant voltage charge and discharge, and then applies constant current charge and discharge to the electrochromic device. The current input to the electrochromic device from the power supply is detected by the integrator and the charge is calculated.
- a high voltage eg2-40V
- the current input to the electrochromic device from the power supply is detected by the integrator and the charge is calculated.
- Instantaneous high current and constant current charging and discharging mode The external power supply performs instantaneous high current and constant current charging and discharging of the electrochromic device, 6a.
- high current eg1 -100A/m 2
- regular current eg0.01-1A/m 2
- the voltage After outputting for a specified period of time, the voltage is detected. When the device voltage reaches the set value or range of the preset cut-off voltage, the charging and discharging of the electrochromic device will be stopped. In some cases, multiple tests are performed at the same time, and when one or any of the indicators in 6a-6d reach the set value at the same time, the charging and discharging of the electrochromic device is stopped.
- Electrochromic devices generally consist of a "sandwich" structure composed of two transparent conductive layers, an electrochromic material layer, an ion storage layer and an intermediate electrolyte.
- electrochromic devices with smaller dimensions for example, anti-glare rearview mirrors
- the entire color change process can usually achieve a faster and uniform color change effect.
- electrochromic devices with large-size electrochromic devices for example, electrochromic smart windows
- the internal voltage distribution of the electrochromic device is not uniform, the potential difference between the two ends of the electrode is too large, which causes the electrochromic material in the electrode area to change color first, which is inconsistent with the transmittance of the central area to cause a color change trend, which is called the "iris effect" ".
- the transmittance of the entire device gradually tends to be the same.
- the inherently acceptable charge and discharge current of the electrochromic device is attenuated in a certain manner, making the device unable to accept long-term high-current charging, which manifests as a slowdown in the charging speed.
- the electrochromic material in the two poles of the device will be reduced to a certain extent. This is because when the external electric field disappears, the internal potential of the device is redistributed, the two poles and the center The regional potential difference disappears, and the transmittance remains the same. However, the overall transmittance of the device increases as the charged charge increases. It can be seen that proper stopping of charging or adding high current discharge during the charging process of the electrochromic device, or proper stopping of charging or adding high current charge during the discharging process of the electrochromic device, can improve the overall charging speed.
- the following charging and discharging modes combining pulse charging and discharging and constant voltage/constant current charging and discharging can be used to achieve the aforementioned effect of avoiding damage to the electrochromic device while realizing the effect of rapid and uniform discoloration of the electrochromic device.
- Forward constant voltage charge and discharge-open circuit for a certain period of time or reverse constant voltage charge and discharge-constant voltage charge and discharge cycle mode In this charge and discharge mode, the external power supply uses a combination of pulse charge and discharge for the electrochromic device and constant voltage charge and discharge
- the pulse charge and discharge include multiple pulse sections and multiple intermittent sections.
- the pulse section adopts forward constant voltage charging and discharging, and the intermittent section adopts a certain time of open circuit or reverse constant voltage charging and discharging.
- 7a. In some cases, the current generated by the electrochromic device under constant voltage is detected by the integrator and the charge count is calculated. When the value meets the set charge count, the charging and discharging of the electrochromic device will be stopped. 7b.
- the electrochromic device when the electrochromic device reaches the required transmittance range, stop charging and discharging the electrochromic device. 7c. In some cases, the charging and discharging of the electrochromic device will be stopped after the specified period of time has been output. 7d. In some cases, the current is detected after the output for a specified period of time, and when the device current reaches the set value or range of the preset cut-off current, the charging and discharging of the electrochromic device will be stopped. In some cases, multiple tests are performed at the same time, and when one or any of the above indicators in 7a-7d reach the set value at the same time, the charging and discharging of the power supply will be stopped.
- Forward constant voltage charge and discharge-open circuit for a certain period of time or reverse constant current charge and discharge-constant voltage charge and discharge cycle mode the external power supply uses a combination of pulse charge and discharge for the electrochromic device and constant voltage charge and discharge
- the pulse charge and discharge include multiple pulse sections and multiple intermittent sections, wherein the pulse section adopts forward constant voltage charging and discharging, and the intermittent section adopts a certain time of open circuit or reverse constant current charging and discharging. 8a.
- the current generated by the electrochromic device under constant voltage is detected by the integrator and the charge count is calculated. When the value meets the set charge count, the charging and discharging of the electrochromic device is stopped. 8b.
- the electrochromic device when the electrochromic device reaches the required transmittance range, stop charging and discharging the electrochromic device. 8c. In some cases, when the output is for a specified period of time, the charging and discharging of the electrochromic device will be stopped. 8d. In some cases, the current is detected after the output for a specified period of time, and when the device current reaches the set value or range of the preset cut-off current, the charging and discharging of the electrochromic device is stopped. In some cases, multiple tests are performed at the same time, and when one or any of the above indicators in 8a-8d reach the set value at the same time, the power supply charging and discharging will be stopped.
- the external power supply uses a combination of pulse charge and discharge for the electrochromic device and constant current charge and discharge
- the pulse charge and discharge include multiple pulse sections and multiple intermittent sections.
- the pulse section adopts positive constant current charging and discharging, and the intermittent section adopts a certain time of open circuit or reverse constant voltage charging and discharging.
- 9a the current input from the power supply to the electrochromic device is detected by the integrator and the charge count is calculated. When the value meets the set charge count, the charging and discharging of the electrochromic device is stopped. 9b.
- the electrochromic device when the electrochromic device reaches the required transmittance range, stop charging and discharging the electrochromic device. 9c. In some cases, when the output is for a specified period of time, the charging and discharging of the electrochromic device will be stopped. 9d. In some cases, after outputting for a specified period of time, the voltage is detected, and when the device voltage reaches the set value or range of the preset cut-off voltage, the charging and discharging of the electrochromic device will be stopped. In some cases, multiple tests are performed at the same time, and when one or any of the above indicators in 9a-9d reach the set value at the same time, the power supply charging and discharging are stopped.
- the external power supply uses a combination of pulse charge and discharge for the electrochromic device and constant current charge and discharge
- the pulse charge and discharge include multiple pulse sections and multiple intermittent sections.
- the pulse section adopts positive constant current charging and discharging, and the intermittent section adopts a certain time of open circuit or reverse constant current charging and discharging.
- 10a the current input from the power supply to the electrochromic device is detected by the integrator and the charge count is calculated. When the value meets the set charge count, the charging and discharging of the electrochromic device will be stopped. 10b.
- the electrochromic device when the electrochromic device reaches the required transmittance range, stop charging and discharging the electrochromic device. 10c. In some cases, when the output is for a specified period of time, the charging and discharging of the electrochromic device will be stopped. 10d. In some cases, after the output for a specified period of time, the voltage is detected, and when the device voltage reaches the set value or range, the charging and discharging of the electrochromic device will be stopped. In some cases, multiple tests are performed at the same time, and when the same or any of the above indicators in 10a-10d reach the set value at the same time, the charging and discharging of the power supply will be stopped.
- Sweep speed charge and discharge mode The external power supply performs sweep speed charge and discharge of the electrochromic device, which is realized by connecting a fixed resistor in series with the electrochromic device in the circuit.
- the electrochromic device When the electrochromic device is in a fully discharged state, the electrochromic device The internal resistance can be regarded as "0", and the fixed resistance in the circuit shares the circuit voltage.
- the internal resistance of the electrochromic device gradually increases, and its partial voltage in the circuit gradually rises.
- the internal resistance of the electrochromic device can be regarded as "infinity", sharing all the voltages in the circuit, and forming a constant Pressure charging.
- the internal potential of the electrochromic device can gradually rise in a balanced manner, eliminating the difference in potential near the two poles, and achieving the effect of uniform discoloration.
- 11a In some cases, when the electrochromic device reaches the required transmittance range, stop charging and discharging the electrochromic device.
- 11b In some cases, when the output is for a specified period of time, the charging and discharging of the electrochromic device will be stopped.
- 11c In some cases, when the device voltage reaches the set value of the preset cut-off voltage, the charging and discharging of the electrochromic device is stopped.
- 11d In some cases, multiple tests of 11a-11d are performed at the same time.
- the charging and discharging of the electrochromic device will be stopped. 11e. In some cases, when the device voltage reaches the set value, it will switch to constant voltage charging and discharging with a certain voltage. After the output for a specified period of time, the charging and discharging of the electrochromic device will be stopped. 11f. In some cases, when the device voltage reaches the set value, it is converted to constant voltage charging and discharging. When the electrochromic device reaches the required transmittance range, the charging of the electrochromic device is stopped. Discharge. 11g.
- the device voltage when the device voltage reaches the set value, it is converted to constant voltage charging and discharging at a certain voltage, and the current generated by the electrochromic device under linear voltage change and constant voltage is detected and the charge is calculated through the integrator. When the value meets the set number of charges, the charging and discharging of the electrochromic device will be stopped. 11h. In some cases, when the device voltage reaches the set value, it is converted to constant voltage charging and discharging at a certain voltage. After outputting for a specified period of time, the current is detected. When the device current reaches the set value or range, the control is stopped. Charging and discharging of electrochromic devices.
- Step 120 If the current transmittance of the electrochromic device reaches the preset transmittance, suspend charging and discharging, and continuously monitor whether the current open circuit potential of the electrochromic device is within the preset open circuit potential threshold range.
- the electrochromic device if the electrochromic device reaches the preset transmittance range, the charging and discharging are suspended, and the current open circuit potential of the electrochromic device is continuously monitored whether the current open circuit potential is within the preset open circuit potential threshold range.
- Step 130 If the current open circuit potential of the electrochromic device is not within the preset open circuit potential threshold range, control the external power supply to charge and discharge the electrochromic device in the second mode, so that the electrochromic device The current open circuit potential of is continuously within the preset open circuit potential threshold range.
- step 130 includes step 131 and step 132:
- Step 131 If the current open circuit potential of the electrochromic device is higher than the preset equilibrium potential of the electrochromic device, continue to monitor the current open circuit potential of the electrochromic device. If the current open-circuit potential is higher than the upper limit of the preset open-circuit potential threshold range, stop charging; if the current open-circuit potential of the electrochromic device is lower than the lower limit of the preset open-circuit potential threshold range, the second mode is used to charge until the current open-circuit potential The upper limit of the preset open-circuit potential threshold is reached.
- Step 132 If the current open-circuit potential of the electrochromic device is lower than the preset equilibrium potential of the electrochromic device, continuously monitor the current open-circuit potential of the electrochromic device. If the current open circuit potential is lower than the lower limit of the preset open circuit potential threshold range, discharging is stopped; if the current open circuit potential of the electrochromic device is higher than the upper limit of the preset open circuit potential threshold range, the second mode is used to discharge until the current open circuit potential The lower limit of the preset open-circuit potential threshold is reached.
- the preset equilibrium potential of an electrochromic device is also called a reversible potential, which means that the forward reaction and reverse reaction of the electrode are equal, that is, the material migration and charge transport speed in the forward and reverse process are the same, and the current through the electrode is equal to zero at this time. Or the current is infinitely small.
- the value of the preset equilibrium potential is related to the electrochromic layer selected for the electrochromic device, the ion storage layer and the selected electrolyte material.
- the open circuit potential of the electrochromic device can be kept within the preset open circuit potential threshold range, so that the electrochromic device maintains the preset transmittance. In this way, during the transmittance maintenance stage, there is no need to charge the electrochromic device at a constant voltage for a long time. Instead, the electrochromic device is charged and discharged in the second mode after the current open circuit potential is not within the preset open circuit potential threshold range. Realize that the electrochromic device maintains a specific transmittance, or any intermediate state transmittance and the cycle between different transmittance ranges, reducing the damage to the device caused by long-term constant current and constant voltage charging and discharging.
- the embodiments of the present application provide a control method, device, equipment and storage medium of an electrochromic device.
- the method includes: determining whether the current transmittance of the electrochromic device reaches a preset transmittance; The current transmittance of the electrochromic device does not reach the preset transmittance, then the external power supply is controlled to charge and discharge the electrochromic device in the first mode until the current transmittance of the electrochromic device reaches the Preset transmittance; if the current transmittance of the electrochromic device reaches the preset transmittance, then suspend charging and discharging, and continuously monitor whether the current open circuit potential of the electrochromic device is at the preset open circuit potential threshold If the current open circuit potential of the electrochromic device is not within the preset open circuit potential threshold range, control the external power supply to charge and discharge the electrochromic device in the second mode, so that the electrochromic device The current open circuit potential of is continuously within the preset open circuit potential threshold range.
- the control method of the electrochromic device provided by the embodiment of the application solves the related technology by judging whether the open circuit potential of the electrochromic device meets the preset requirement, and charging the electrochromic device through a variety of charging methods and judgment conditions. For the problem of inaccurate control and instability of the electrochromic device, the uniform color change and the increase of the life of the electrochromic device are realized.
- Fig. 2 is a flow chart of a method for controlling an electrochromic device according to the second embodiment of the application. This embodiment may be suitable for controlling the stable transmittance of the electrochromic device, and includes the following steps:
- Step 200 When an adjustment instruction is detected, determine whether the current transmittance of the electrochromic device reaches the preset transmittance, and the adjustment instruction is performed when the current transmittance of the electrochromic device reaches the preset transmittance. Generated when the transmittance is set and/or other preset conditions are met.
- other preset conditions include one or a combination of the following conditions: when the temperature change exceeds the preset temperature difference range; when the electrochromic device is powered off and restarted; when a user input is received for adjustment transparency When the difference between the current transmittance and the preset transmittance of the electrochromic device is greater than the preset transmittance difference range; the preset time is reached from the last adjustment; when the sunlight intensity and When the user's location changes in temperature and light intensity throughout the year.
- Step 210 If the current transmittance of the electrochromic device does not reach the preset transmittance, detect the ambient temperature, the number of charge and discharge cycles of the electrochromic device, and the use time of the electrochromic device , The open circuit potential of the electrochromic device after charging and discharging or the peak current during the charging and discharging of the electrochromic device.
- the environmental temperature of the device in order to achieve precise adjustment of the transmittance of the electrochromic device, the environmental temperature of the device, the use time of the device, the number of cycles, the peak current of the device within a fixed voltage period, and the charging and discharging time Then the open circuit potential of the device is detected, and the preset charging and discharging parameters of the first mode are adjusted by detecting the above-mentioned multiple parameters.
- Step 220 According to the ambient temperature, the number of charge and discharge cycles of the electrochromic device, the use time of the electrochromic device, the open circuit potential of the electrochromic device after charging and discharging, or the electrochromic device The peak current during the charging and discharging process of the device modifies the preset charging and discharging parameters in the first mode.
- the performance of the electrochromic device will change under changes in temperature and service life.
- electrochromic devices are more prone to degradation or damage of device performance caused by excessive oxidation reactions at high temperatures.
- the logic control board can collect the real-time data of the external temperature sensor, and use it to judge the external environment of the device, and after receiving the instruction to adjust the transmittance range, it will reduce it according to the internal algorithm. Set the value of the transferred charge to a small value, or shorten the constant voltage and constant current charging time.
- the logic control board can automatically adjust and set the transmittance range and the highest and lowest thresholds of the open circuit potential according to the value of the external temperature, so as to avoid the attenuation or damage caused by excessive oxidation of the device at high temperatures.
- the logic control board judges the external environment of the device by detecting the magnitude of the charging or discharging current under a specific voltage, and after receiving the instruction to adjust the transmittance range, it appropriately reduces the set transfer charge according to the internal algorithm Or shorten the constant voltage and constant current charging time and automatically adjust the transmittance range, the highest and lowest thresholds of open circuit potential, so as to avoid the attenuation or damage caused by excessive oxidation of the device at high temperatures.
- the electrochromic device generally realizes the color changing function through the movement of lithium ions between the electrolyte and the electrochromic material.
- the lithium ions When a forward voltage is applied to the electrochromic device, the lithium ions are driven to move from the ion conductor/electrolyte to the electrochromic material.
- the compensation charge will be discharged from the counter electrode, and the charge compensation electron will flow in from the external circuit and be embedded in the electrochromic material to keep the charge neutral.
- the cycle time increases, at the end of the device life, due to the accumulation of Faraday charge loss, the process of ion insertion and extraction in the electrochromic material will become more difficult.
- the logic control board can judge the performance of the device by detecting the magnitude of the peak current of charging or discharging under a specific voltage and the value of the open circuit potential of the device after charging and discharging. When the detection current or the open circuit potential of the device after charging and discharging is less than a set threshold , The logic control board needs to modify the output voltage or current value of the electrochromic device or change the output time according to the built-in algorithm such as the device use time and the number of cycles to ensure the adjustment of the set transmittance range.
- the capacity and area of the electrochromic device, the transmittance and the open circuit potential are closely related.
- the logic control board automatically recognizes the size of different electrochromic devices, and outputs voltage or current according to the corresponding logic control algorithm and combined with the operating environment of the device. In this way, it is ensured that the function of quickly and uniformly adjusting the transmittance of the electrochromic device is satisfied within the specified lifetime of the electrochromic device.
- Step 230 Control the external power supply to charge and discharge the electrochromic device in the first mode to achieve a preset transmittance.
- the electrochromic device when the electrochromic device reaches the preset transmittance, it enters the stage of maintaining the transmittance.
- Step 240 If the current transmittance of the electrochromic device reaches the preset transmittance, suspend charging and discharging, and continuously monitor whether the current open circuit potential of the electrochromic device is within the preset open circuit potential threshold range.
- Step 250 If the current open circuit potential of the electrochromic device is not within the preset open circuit potential threshold range, control the external power supply to charge and discharge the electrochromic device in the second mode, so that the electrochromic device The current open circuit potential of is continuously within the preset open circuit potential threshold range.
- the embodiment of the present application provides a method for controlling an electrochromic device.
- the method includes: when an adjustment instruction is detected, determining whether the current transmittance of the electrochromic device reaches a preset transmittance, and the adjustment The instruction is generated when the current transmittance of the electrochromic device reaches the preset transmittance and/or meets other preset conditions; if the current transmittance of the electrochromic device does not reach the preset transmittance Over rate, the ambient temperature, the number of charge and discharge cycles of the electrochromic device, the use time of the electrochromic device, the open circuit potential of the electrochromic device after charging and discharging, or the electrochromic device
- the peak current during charging and discharging according to the ambient temperature, the number of charge and discharge cycles of the electrochromic device, the use time of the electrochromic device, the open circuit potential of the electrochromic device after charging and discharging, or The peak current during the charging and discharging process of the electrochromic device modifies the preset charging and discharging parameters
- the control method of the electrochromic device provided by the embodiment of the application solves the related technology by judging whether the open circuit potential of the electrochromic device meets the preset requirement, and charging the electrochromic device through a variety of charging methods and judgment conditions. For the problem of inaccurate control and instability of the electrochromic device, the uniform color change and the increase of the life of the electrochromic device are realized.
- the control device for the electrochromic device provided in the embodiment of the application can execute the control method of the electrochromic device provided in any embodiment of the application, and has the functional modules and effects corresponding to the execution method.
- FIG. 3 is a schematic structural diagram of an electrochromic device control device 300 provided in the third embodiment of the present application. 3, the control device 300 of the electrochromic device provided by the embodiment of the present application may include:
- the determining module 310 is configured to determine whether the current transmittance of the electrochromic device reaches a preset transmittance; the first charging and discharging module 320 is configured to control the external power supply to charge the electrochromic device in the first mode Discharge until the current transmittance of the electrochromic device reaches the preset transmittance; the potential determining module 330 is configured to suspend charging and discharging, and continuously monitor whether the current open circuit potential of the electrochromic device is at the preset Set the open circuit potential threshold range; the second charging and discharging module 340 is set so that the current open circuit potential of the electrochromic device is not within the preset open circuit potential threshold range, and then the external power supply is controlled to perform the second operation on the electrochromic device. Mode charging and discharging, so that the current open circuit potential of the electrochromic device is continuously within the preset open circuit potential threshold range.
- determining whether the current transmittance of the electrochromic device reaches a preset transmittance includes:
- the second charging and discharging module 340 includes:
- the first charging and discharging module 320 includes:
- the ambient temperature is detected; the first mode preset charge and discharge parameters are corrected according to the ambient temperature; the external power supply is controlled to charge and discharge the electrochromic device in the first mode to achieve the preset transmittance.
- the first charging and discharging module 320 includes:
- the current modifies the preset charging and discharging parameters in the first mode; controlling the external power supply to charge and discharge the electrochromic device in the first mode to achieve the preset transmittance.
- the method for judging that the current transmittance of the electrochromic device reaches the preset transmittance includes: the number of charge and discharge charges of the electrochromic device reaches a preset value, and the electrochromic device The open circuit potential reaches the open circuit potential corresponding to the preset transmittance, the constant voltage or constant current output time of the electrochromic device reaches the preset time, or the output current of the electrochromic device is less than the preset cut-off current.
- the preset conditions include: the number of charge and discharge charges of the electrochromic device reaches a preset value, the transmittance of the electrochromic device reaches a preset transmittance range, and the output of the electrochromic device The time reaches the preset time or the current of the electrochromic device reaches the preset current.
- the first mode charging and discharging or the second mode charging and discharging include: constant voltage charging and discharging, constant current charging and discharging, pulse charging and discharging, and/or sweeping charging and discharging.
- This embodiment provides a control device for an electrochromic device, including: a judging module configured to determine whether the current transmittance of the electrochromic device reaches a preset transmittance; and a first charging and discharging module configured to Control the external power supply to charge and discharge the electrochromic device in the first mode until the current transmittance of the electrochromic device reaches the preset transmittance; the electric potential determination module is set to suspend the charge and discharge and continue Monitor whether the current open circuit potential of the electrochromic device is within the preset open circuit potential threshold range; the second charging and discharging module is set so that the current open circuit potential of the electrochromic device is not within the preset open circuit potential threshold range, then The external power supply is controlled to charge and discharge the electrochromic device in the second mode, so that the current open circuit potential of the electrochromic device is continuously within the preset open circuit potential threshold range.
- the control device of the electrochromic device provided by the embodiment of the application solves the related technology by judging whether the open circuit potential of the electrochromic device meets the preset requirement, and charging the electrochromic device through a variety of charging methods and judgment conditions.
- the problem of inaccurate control and instability of electrochromic devices is achieved, and the uniform discoloration of the electrochromic devices and the improvement of the lifespan of the electrochromic devices are realized.
- FIG. 4 is a schematic structural diagram of a dimming device provided in Embodiment 4 of the application.
- the dimming device 400 includes a memory 410 and a processor 420.
- the number of processors 420 in the dimming device 400 may be For one or more, one processor 420 is taken as an example in FIG. 4; the memory 410 and the processor 420 in the device may be connected by a bus or other methods. In FIG. 4, the connection by a bus is taken as an example.
- the memory 410 can be configured to store software programs, computer-executable programs, and modules, such as program instructions/modules corresponding to the control method of the electrochromic device in the embodiments of the present application (for example, electrochromic device).
- the processor 420 executes multiple functional applications and data processing of the device/terminal/device by running the software programs, instructions, and modules stored in the memory 410, that is, realizes the control method of the electrochromic device described above.
- the processor 420 is configured to run a computer program stored in the memory 410, and implements the following steps:
- the computer program of the dimming device 400 provided in the embodiment of the present application is not limited to the above method operation, and can also execute the control method of the electrochromic device provided in any embodiment of the present application. Related operations.
- the memory 410 may mainly include a program storage area and a data storage area.
- the program storage area may store an operating system and an application program required by at least one function; the data storage area may store data created according to the use of the terminal, and the like.
- the memory 410 may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one magnetic disk storage device, a flash memory device, or other non-volatile solid-state storage devices.
- the memory 410 may include a memory remotely provided with respect to the processor 420, and these remote memories may be connected to the device/terminal/device through a network. Examples of the aforementioned networks include, but are not limited to, the Internet, corporate intranets, local area networks, mobile communication networks, and combinations thereof.
- This embodiment provides a control device for an electrochromic device, which is set to execute: determine whether the current transmittance of the electrochromic device reaches a preset transmittance; if the current transmittance of the electrochromic device If the transmission rate does not reach the preset transmittance, the external power supply is controlled to charge and discharge the electrochromic device in the first mode until the current transmittance of the electrochromic device reaches the preset transmittance; If the current transmittance of the electrochromic device reaches the preset transmittance, the charging and discharging are suspended, and the current open circuit potential of the electrochromic device is continuously monitored whether the current open circuit potential of the electrochromic device is within the preset open circuit potential threshold range; if the electrochromic device is within the preset open circuit potential threshold range; If the current open circuit potential of the color-changing device is not within the preset open-circuit potential threshold range, the external power supply is controlled to charge and discharge the electrochromic device in the second mode, so that the current open-circuit potential of the electro
- the fifth embodiment of the present application also provides a storage medium containing computer-executable instructions, when the computer-executable instructions are executed by a computer processor, they are used to execute an electrochromic device control method, the method comprising:
- a storage medium containing computer-executable instructions provided by an embodiment of the present application.
- the computer-executable instructions are not limited to the method operations described above, and can also execute the control method of an electrochromic device provided by any embodiment of the present application. Related operations in.
- the computer-readable storage medium of the embodiment of the present application may adopt any combination of one or more computer-readable media.
- the computer-readable medium may be a computer-readable signal medium or a computer-readable storage medium.
- the computer-readable storage medium may be, for example, but not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, device, or device, or a combination of any of the above.
- Examples of computer-readable storage media include: electrical connections with one or more wires, portable computer disks, hard disks, random access memory (RAM), read-only memory (Read- Only Memory, ROM, Erasable Programmable Read-Only Memory (EPROM or flash memory), optical fiber, Compact Disc Read-Only Memory (CD-ROM), optical storage Components, magnetic storage devices, or any suitable combination of the above.
- the computer-readable storage medium can be any tangible medium that contains or stores a program, and the program can be used by or in combination with an instruction execution system, apparatus, or device.
- the computer-readable signal medium may include a data signal propagated in baseband or as a part of a carrier wave, and computer-readable program code is carried therein. This propagated data signal can take many forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination of the foregoing.
- the computer-readable signal medium may also be any computer-readable medium other than the computer-readable storage medium, and the computer-readable medium may send, propagate, or transmit the program for use by or in combination with the instruction execution system, apparatus, or device .
- the program code contained on the storage medium can be transmitted by any suitable medium, including but not limited to wireless, wire, optical cable, radio frequency (RF), etc., or any suitable combination of the foregoing.
- suitable medium including but not limited to wireless, wire, optical cable, radio frequency (RF), etc., or any suitable combination of the foregoing.
- the computer program code used to perform the operations of this application can be written in one or more programming languages or a combination thereof.
- the programming languages include object-oriented programming languages—such as Java, Smalltalk, C++, and also conventional Procedural programming language-such as "C" language or similar programming language.
- the program code can be executed entirely on the user's computer, partly on the user's computer, executed as an independent software package, partly on the user's computer and partly executed on a remote computer, or entirely executed on the remote computer or terminal.
- the remote computer can be connected to the user's computer through any kind of network-including Local Area Network (LAN) or Wide Area Network (WAN)-or it can be connected to an external computer ( For example, use an Internet service provider to connect via the Internet).
- LAN Local Area Network
- WAN Wide Area Network
- This embodiment provides a control storage medium for an electrochromic device, which is set to execute: determine whether the current transmittance of the electrochromic device reaches a preset transmittance; if the current transmittance of the electrochromic device If the overrate does not reach the preset transmittance, control the external power supply to charge and discharge the electrochromic device in the first mode until the current transmittance of the electrochromic device reaches the preset transmittance; if If the current transmittance of the electrochromic device reaches the preset transmittance, the charge and discharge are suspended, and the current open circuit potential of the electrochromic device is continuously monitored whether the current open circuit potential of the electrochromic device is within the preset open circuit potential threshold range; If the current open-circuit potential of the electrochromic device is not within the preset open-circuit potential threshold range, the external power supply is controlled to charge and discharge the electrochromic device in the second mode, so that the current open-circuit potential of the electrochromic device is continuously at the same level.
- the preset open circuit potential threshold range The control storage medium of the electrochromic device provided by the embodiment of the present application solves the related problems by judging whether the open circuit potential of the electrochromic device meets the preset requirement, and charging the electrochromic device through a variety of charging methods and judgment conditions.
- the technology can not precisely control the electrochromic device and the problem of instability, so as to realize the uniform discoloration of the electrochromic device and the improvement of the lifespan of the electrochromic device.
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Abstract
Description
Claims (10)
- 一种电致变色器件的控制方法,包括:判断所述电致变色器件的当前透过率是否达到预设透过率;响应于所述电致变色器件的当前透过率未达到所述预设透过率,控制外部电源对所述电致变色器件进行第一模式充放电,直至所述电致变色器件的当前透过率达到所述预设透过率;响应于所述电致变色器件的当前透过率达到所述预设透过率,暂停充放电,并持续监测所述电致变色器件的当前开路电势是否处于预设开路电势阈值范围内;在所述电致变色器件的当前开路电势不处于所述预设开路电势阈值范围内的情况下,控制外部电源对所述电致变色器件进行第二模式充放电,以使得所述电致变色器件的当前开路电势持续处于所述预设开路电势阈值范围内。
- 根据权利要求1中所述的方法,其中,所述判断所述电致变色器件的当前透过率是否达到预设透过率,包括:在检测到调整指令的情况下,判断所述电致变色器件的当前透过率是否达到所述预设透过率,其中,所述调整指令在以下至少之一的情况下生成:所述电致变色器件的当前透过率达到所述预设透过率;符合预设条件。
- 根据权利要求1中所述的方法,其中,所述在所述电致变色器件的当前开路电势不处于所述预设开路电势阈值范围内的情况下,控制外部电源对所述电致变色器件进行第二模式充放电,以使得所述电致变色器件的当前开路电势持续处于所述预设开路电势阈值范围内,包括:判断所述电致变色器件的当前开路电势是否高于所述电致变色器件的预设平衡电位;响应于所述电致变色器件的当前开路电势高于所述预设平衡电位,持续监测所述电致变色器件的当前开路电势;在监测到的所述电致变色器件的当前开路电势高于所述预设开路电势阈值范围的上限的情况下,停止充电;在监测到的所述电致变色器件的当前开路电势低于所述预设开路电势阈值范围的下限的情况下,采用所述第二模式进行充电,直至所述当前开路电势达到所述预设开路电势阈值的上限;响应于所述电致变色器件的当前开路电势不高于所述预设平衡电位,持续监测所述电致变色器件的当前开路电势;在监测到的所述电致变色器件的当前开路电势低于所述预设开路电势阈值范围的下限的情况下,停止放电;在监测到的所述电致变色器件的当前开路电势高于所述预设开路电势阈值范围的上限 的情况下,采用所述第二模式进行放电,直至所述当前开路电势达到所述预设开路电势阈值的下限。
- 根据权利要求1中所述的方法,其中,所述控制外部电源对所述电致变色器件进行第一模式充放电,直至所述电致变色器件的当前透过率达到所述预设透过率,包括:检测环境温度;根据所述环境温度修正第一模式预设充放电参数;根据修正后的第一模式预设充放电参数,控制所述外部电源对所述电致变色器件进行所述第一模式充放电以达到所述预设透过率。
- 根据权利要求1中所述的方法,其中,所述控制外部电源对所述电致变色器件进行第一模式充放电,直至所述电致变色器件的当前透过率达到所述预设透过率包括:检测所述电致变色器件的充放电循环圈数、所述电致变色器件的使用时间、所述电致变色器件充放电后的开路电势或所述电致变色器件充放电过程中的峰值电流;根据检测到的所述电致变色器件的充放电循环圈数、所述电致变色器件的使用时间、所述电致变色器件充放电后的开路电势或所述电致变色器件充放电过程中的峰值电流修正第一模式预设充放电参数;根据修正后的第一模式预设充放电参数,控制所述外部电源对所述电致变色器件进行所述第一模式充放电以达到所述预设透过率。
- 根据权利要求1中所述的方法,其中,所述判断所述电致变色器件的当前透过率是否达到预设透过率,包括以下之一:判断所述电致变色器件的充放电电荷数是否达到预设数值;判断所述电致变色器件的开路电势是否达到所述预设透过率对应的开路电势;判断所述电致变色器件的恒压或恒流输出时间是否达到预设时间;判断所述电致变色器件的输出电流是否小于预设截止电流。
- 根据权利要求1中所述的方法,其中,所述第一模式充放电或所述第二模式充放电包括以下至少之一:恒压充放电、恒流充放电、脉冲充放电、扫速充放电。
- 一种电致变色器件的控制装置,包括:判断模块,设置为判断所述电致变色器件的当前透过率是否达到预设透过率;第一充放电模块,设置为响应于所述电致变色器件的当前透过率未达到所述预设透过率,控制外部电源对所述电致变色器件进行第一模式充放电,直至所述电致变色器件的当前透过率达到所述预设透过率;电势确定模块,设置为响应于所述电致变色器件的当前透过率达到所述预设透过率,暂停充放电,并持续监测所述电致变色器件的当前开路电势是否处于预设开路电势阈值范围内;第二充放电模块,设置为在所述电致变色器件的当前开路电势不处于所述预设开路电势阈值范围内的情况下,控制外部电源对所述电致变色器件进行第二模式充放电,以使得所述电致变色器件的当前开路电势持续处于所述预设开路电势阈值范围内。
- 一种调光设备,包括:至少一个处理器;存储装置,设置为存储至少一个程序;当所述至少一个程序被所述至少一个处理器执行,使得所述至少一个处理器实现如权利要求1-7中任一项所述的电致变色器件的控制方法。
- 一种计算机可读存储介质,存储有计算机程序,所述计算机程序包括程序指令,其中,所述程序指令被处理器执行时实现如权利要求1-7中任一项所述的电致变色器件的控制方法。
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