WO2024021900A1 - Procédé de commande et système de commande pour dispositif à commutation optique, et dispositif à commutation optique - Google Patents

Procédé de commande et système de commande pour dispositif à commutation optique, et dispositif à commutation optique Download PDF

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Publication number
WO2024021900A1
WO2024021900A1 PCT/CN2023/099103 CN2023099103W WO2024021900A1 WO 2024021900 A1 WO2024021900 A1 WO 2024021900A1 CN 2023099103 W CN2023099103 W CN 2023099103W WO 2024021900 A1 WO2024021900 A1 WO 2024021900A1
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WIPO (PCT)
Prior art keywords
gear
dimming
switchable device
state voltage
preset
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PCT/CN2023/099103
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English (en)
Chinese (zh)
Inventor
钟卓洪
欧阳天虹
何嘉智
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光羿智能科技(苏州)有限公司
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Publication of WO2024021900A1 publication Critical patent/WO2024021900A1/fr

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Classifications

    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
    • Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection

Definitions

  • the present application relates to the technical field of optical switchable devices, and in particular, to a control method, a control system and an optical switchable device.
  • Electrochromism refers to the reversible discoloration phenomenon of electrochromic materials under the action of an electric field. It is essentially an electrochemical oxidation-reduction reaction. After the reaction, the material shows a reversible change in color in appearance. Electrochromic devices contain The above-mentioned electrochromic material device is also called an optical switchable device. Through the charging/discharging of electrochromic devices, the devices can display different colors in multiple levels, such as transparent state, intermediate state, dark state, etc. However, after long-term charging/discharging use, the material will age, causing the device to The state voltage and light transmittance corresponding to the dimming gear will also change, that is, the gear shift will occur.
  • the accuracy of device transmittance adjustment is reduced, and the device may never reach some of the initially set gears, such as the state voltage transmittance corresponding to the lowest gear, causing the device to fail at that level. If the gear is in the overcharge or overdischarge state for a long time, it will cause certain damage to the device (especially if it is in the overcharge state for a long time, the damage to the device will be greater), thus reducing the service life of the device.
  • embodiments of the present application provide a control method, control system and optical switchable device for an optical switchable device, which can improve the accuracy of gear adjustment and prevent damage to the device due to overcharge or overdischarge, thereby improving the efficiency of the device.
  • the service life of the device can improve the accuracy of gear adjustment and prevent damage to the device due to overcharge or overdischarge, thereby improving the efficiency of the device.
  • embodiments of the present application provide a method for controlling an optically switchable device, which includes: controlling the optically switchable device to enter a self-calibration mode; adjusting the optically switchable device to be in at least one designated dimming gear, and obtaining the state of the optically switchable device in the self-calibration mode.
  • embodiments of the present application also provide a control system for an optically switchable device, including: a mode control module for controlling the optically switchable device to enter a self-calibration mode; and a shift control module for adjusting the optically switchable device.
  • the switching device is in at least one designated dimming gear, and obtains at least one actual state voltage corresponding to the designated dimming gear; a calibration calculation module is used to calculate the dimming gear based on the at least one actual state voltage based on the at least one actual state voltage.
  • the latest gear dimming standard of the optical switchable device is determined by the correlation between the position and the preset state voltage, or in combination with the correlation between the gear capacity and the state voltage.
  • embodiments of the present application further provide an optical switchable device.
  • the optical switchable device includes a processor and a memory.
  • the memory stores a computer program.
  • the processor is used to execute the computer program to implement the above. Control method of optical switchable device.
  • embodiments of the present application also provide a computer-readable storage medium that stores a computer program.
  • the computer program is executed on a processor, the above-mentioned control method of an optical switchable device is implemented.
  • the embodiments of the present application have the following beneficial effects:
  • the control method of the optical switchable device of the embodiments of the present application adopts one or more designated dimming gears and combines the correlation between different dimming gears and the preset state voltage.
  • the relationship, or the correlation between the gear capacity and the state voltage of different dimming gears is used to update the gear dimming standards of the optical switchable device to obtain the latest charging or discharging reference for each dimming gear.
  • Data can effectively solve the gear shift problem caused by aging during use of optical switchable devices, improve the accuracy of light transmittance adjustment, and can also effectively prevent overcharge or over-discharge from damaging the optical switchable devices. damage, thereby increasing the service life of the device.
  • Figure 1 shows a schematic diagram of the state voltage offset corresponding to the dimming gear of the optical switchable device
  • Figure 2 shows a flow chart of a control method of an optical switchable device according to some embodiments of the present application
  • Figure 3 shows another flowchart of a control method of an optical switchable device according to some embodiments of the present application
  • Figure 4 shows a flow chart of a control method for an optical switchable device that performs self-calibration based on a pre-stored data table in some embodiments of the present application
  • Figure 5 shows a flow chart of a control method for an optical switchable device that performs self-calibration based on a preset relationship in some embodiments of the present application
  • Figure 6 shows a schematic structural diagram of a control system of an optical switchable device according to some embodiments of the present application.
  • FIG. 1 shows a schematic diagram of the state voltage offset corresponding to the dimming gear of the optical switchable device. Since the electrochromic material of the optical switchable device will age after a certain period of use, problems such as dimming gear shift will occur as shown in Figure 1. That is, when the product leaves the factory, each dimming gear is initially The corresponding preset state voltage will appear to have a state voltage offset problem after aging due to use, that is, the actual state voltage corresponding to each dimming gear will change.
  • the optical switchable device If the optical switchable device is still charged according to the original state voltage, discharge, the light transmittance corresponding to each gear will change, resulting in a reduction in the accuracy of light transmittance adjustment, affecting the user experience; further, the state corresponding to the lowest or highest gear of the optical switchable device If the voltage is never reached, it will cause the device to charge or discharge repeatedly at the lowest or highest level, that is, overcharge or overdischarge. Long-term overcharge or overdischarge will reduce the service life of the optical switchable device.
  • the so-called state voltage here can refer to the real-time voltage or holding voltage corresponding to the current light transmittance, or the open circuit voltage (OCV for short) corresponding to the current light transmittance;
  • the actual state voltage is The actual voltage detected at each dimming gear and the preset state voltage are the preset voltages corresponding to each preset dimming gear.
  • the capacity calibration method can be used, such as the patent previously submitted by the applicant (Application No.: 202111260799.4), which calibrates the actual available capacity of the device and re-divides the capacity corresponding to each gear according to the actual available capacity to improve the device. Accuracy of light transmittance adjustment.
  • the applicant further proposed the technical solution of the present application, that is, by automatically calibrating the state voltage corresponding to each dimming gear to provide more accurate charging or discharging reference data corresponding to each dimming gear. (i.e. gear dimming standard), thereby effectively improving the accuracy of light transmittance adjustment, preventing overcharge or overdischarge of the device, and extending its service life.
  • the technical solution of the present application that is, by automatically calibrating the state voltage corresponding to each dimming gear to provide more accurate charging or discharging reference data corresponding to each dimming gear. (i.e. gear dimming standard), thereby effectively improving the accuracy of light transmittance adjustment, preventing overcharge or overdischarge of the device, and extending its service life.
  • Figure 2 shows a flow chart of a control method of an optical switchable device according to some embodiments of the present application.
  • the method of controlling the optical switchable device may include steps S110 to S130, wherein: step S110 is to control the optical switchable device to enter the self-calibration mode; step S120 is to adjust the optical switchable device to be in at least A designated dimming gear, and obtain at least one actual state voltage corresponding to the designated dimming gear; step S130 is based on at least one actual state voltage, combined with the correlation between the dimming gear and the preset state voltage, or Combined with the correlation between the gear capacity and the state voltage, the latest gear dimming standard for optical switchable devices is determined.
  • the designated dimming gear refers to the corresponding dimming gear used for self-calibration.
  • the specified dimming gear can be any dimming gear automatically selected by the device, or it can be any dimming gear manually designated; in addition, the number of the specified dimming gears is not limited, it can be one, or Is multiple, depending on the self-calibration method, etc.
  • the latest gear dimming standard can be determined based on the actual state voltages of these designated dimming gears.
  • the self-calibration mode is a preset working mode of the optical switchable device.
  • the working mode will be automatically entered to automatically update the dimming gear standard.
  • the conditions that trigger entry into the self-calibration mode may include, but are not limited to, any one or a combination of more of the following conditions A to E:
  • Condition A When the number of gear shifts of the optical switchable device reaches the preset number threshold.
  • shifting refers to the operation of the optical switchable device switching from one dimming gear to another.
  • the number of times this operation is performed is the number of gear shifts; in addition, the preset number threshold is the optical switchable device.
  • the number or range of gear shifts preset in the device such as the preset number of gear shifts that the device already has when it leaves the factory and becomes a finished product.
  • the value or range of the preset number of times threshold is not particularly limited. Different sizes or shapes or different performances
  • the same optical switchable device may have different preset number thresholds, such as 300 times, 500 times, or 800 times. In some embodiments, the same optical switchable device may also have different preset times under different application scenarios or application requirements. Preset the number of times threshold to enable the startup of self-calibration mode in different situations.
  • the entry into the self-calibration operation is triggered.
  • the condition of the calibration mode can also be condition B: when the time interval since the last time the self-calibration mode was entered reaches the preset interval threshold. That is to say, setting it from the time dimension, the optical switchable device can perform a self-calibration operation every once in a while to improve the accuracy of its light transmittance adjustment; similarly, there is no special limit on the value or value range of the preset interval threshold. , which can also take different values according to the size, shape, performance, usage scenarios or usage requirements of the optical switchable device to improve the applicability and reliability of the device.
  • the use cycle can refer to the length of the interval from when the optical switchable device leaves the factory and is ready for use after the product is installed to when it reaches a certain length of time after installation; in other embodiments, the use cycle can also refer to the length of the optical switchable device.
  • the total time the switchable device adjusts or maintains the light transmittance That is, although the device is installed in a certain scene and used, the light transmittance is not actually adjusted or maintained. It is considered to be in an unused state and only the light transmittance is adjusted. Or the maintenance time is calculated as the service period.
  • the numerical value or numerical range of the preset usage time threshold there is no special limitation on the numerical value or numerical range of the preset usage time threshold. It can also take different values according to the size, shape, performance, usage scenarios or usage requirements of the optical switchable device, so as to Improve the applicability and reliability of the device.
  • Condition D When the shift operation is not completed after exceeding the maximum shift duration.
  • shifting refers to the operation of the optical switchable device switching from one dimming gear (current dimming gear) to another dimming gear (target dimming gear). It is a sign that the gear shifting operation is completed. That is, it is completed when the current actual dimming gear reaches the target dimming gear. Normally, the gear shifting operation will be completed within a certain period of time. However, after the device ages, in some cases, if the device exceeds the maximum shifting If the target dimming level has not been reached after the blocking time, it means that the device may not currently be able to reach the target dimming level. Therefore, an update of the dimming level standard of the optical switchable device can be triggered.
  • the maximum shift duration may be the maximum shift duration for the optical switchable device to shift from any one dimming gear to any other dimming gear.
  • the maximum shifting time may also be required for the optical switchable device to shift from the lowest dimming gear to the highest dimming gear, or from the highest dimming gear to the lowest dimming gear. duration, such as 90s, 120s or 200s, etc.
  • the maximum shifting time may be any time preset in advance, or may be a test time after detection based on the current status of the device. There is no special limit to the value or range of the maximum shifting time. It can also be set differently according to the size, shape, performance, usage scenarios or usage requirements of the optical switchable device to improve the applicability of the device. performance and reliability.
  • Condition E When the difference between the latest acquired actual state voltage at the specified dimming level and the preset state voltage corresponding to the specified dimming level exceeds the preset voltage difference range. For example, taking the specified dimming level as level 1, if the difference between the latest actual state voltage of level 1 and the current corresponding preset state voltage exceeds a certain range, that is, when it exceeds the preset voltage difference range , that is, it can be considered that the gear position of the device has shifted significantly, and it is necessary to Calibration is performed so the unit can be triggered into self-calibration mode.
  • the preset state voltage can be obtained by querying the data table preset in the device, or can be calculated through the fitting function between the capacity and the state voltage; in addition, the value or value range of the preset voltage difference range has no With special limitations, it can also take different values according to the size, shape, performance, usage scenarios or usage requirements of the optical switchable device to improve the applicability and reliability of the device.
  • the preset voltage difference range may be, for example, 0.1V, 0.2V, or 0.3V.
  • the conditions listed above can be used alone or in combination, that is, the self-calibration mode is triggered when multiple conditions are met at the same time. This also avoids frequent self-calibration operations, or can be performed at different times. Using different conditions to trigger etc. is not limited here.
  • the self-calibration mode can also be entered through manual adjustment, that is, the self-calibration mode signal can be artificially input to the optical switchable device to enter the self-calibration mode, thereby automatically updating the dimming gear standard.
  • Figure 3 shows another flowchart of a control method of an optical switchable device according to some embodiments of the present application.
  • the control method of the optical switchable device further includes: step S210 detecting whether the conditions for triggering entry into the self-calibration mode are met.
  • step S220 is executed; otherwise, detection continues. Among them, the triggering conditions will not be described again here. For details, please refer to the above content.
  • Step S220 is to detect whether the optical switchable device is currently in use.
  • step S110 is executed. Otherwise, continue waiting until use is discontinued.
  • the current dimming gear status of the optical switchable device can be further determined to determine whether to start a self-calibration operation.
  • the so-called "in use state” here means that the light transmittance of the optical switchable device changes or remains in a specific state after the light transmittance changes. If the dimming gear corresponding to the specific state in which the light transmittance is maintained is consistent with the specified dimming If the light settings are inconsistent, it can also be considered to be in use.
  • Step S230 If it is in the use state and the current dimming gear is the designated dimming gear, it enters the self-calibration mode, that is, step S110 is executed.
  • the control method before controlling the optical switchable device to enter the self-calibration mode, the control method further includes: detecting whether the current ambient temperature meets the preset temperature range or The preset temperature value; if it is satisfied, the self-calibration operation will be started, that is, the self-calibration mode will be entered, otherwise the self-calibration operation will not be started, that is, the self-calibration mode will not be entered.
  • the above-mentioned preset temperature interval or preset temperature value is used to determine whether the current environment is suitable for starting the self-calibration operation.
  • the electrochemical state of the same electrochromic material will change in different temperature ranges, and its ion transfer amount will change, thus showing different states in different temperature ranges.
  • the voltage, such as the OCV value therefore, the self-calibration process of the device can be made to occur within a certain temperature range to ensure the consistency of the state voltage, such as the OCV change.
  • the difficulty of charging or discharging is also different. For example, if the temperature is too low, the activity of the electrolyte is low, resulting in slow ion or electron transmission during the charging or discharging process. Therefore, correlating the temperature factor with the state voltage or capacity can make self-calibration more accurate.
  • a temperature sensor such as a thermosensitive resistor can be used to detect the current ambient temperature of the optical switchable device. If the dimming standard of the optical switchable device needs to be obtained in a specific temperature range, such as 10°C to 40°C, etc. , then it can be determined whether the current ambient temperature meets the specific temperature range. If so, the self-calibration operation will be started. Otherwise, the self-calibration operation will not be performed.
  • Step S120 is to adjust the optical switchable device to at least one designated dimming gear, and obtain at least one actual state voltage corresponding to the designated dimming gear.
  • the number of specified dimming gears can be set according to different adjustment methods, for example, one or two or more.
  • self-calibration can be performed through only one designated dimming gear.
  • the optical switchable device can be controlled to directly adjust to the specified dimming level.
  • the cut-off current, charging or discharging time, etc. can be used to determine whether the specified dimming level has been reached, and then the current state of the specified dimming level can be detected and obtained.
  • the actual state voltage corresponding to the light level such as the actual OCV.
  • the optical switchable device can be controlled to adjust to the corresponding designated dimming gears in sequence, and then the actual state voltage corresponding to each designated dimming gear is recorded, Such as actual OCV.
  • the detected actual state voltage is OCV
  • the time for disconnecting the circuit is not particularly limited and can be adjusted arbitrarily according to the performance of the device, for example, it can be 60s, 90s, 120s or 150s.
  • the designated dimming gear at this time can be any multiple gears among all the dimming gears set by the optical switchable device, which is not limited here.
  • the designated dimming gear may be an optical switchable device. Set the highest dimming level or the lowest dimming level to simplify the self-calibration process and improve the accuracy of self-calibration.
  • Step S130 is to determine the latest gear adjustment of the optical switchable device based on at least one actual state voltage, combined with the correlation between the dimming gear and the preset state voltage, or the correlation between the gear capacity and the state voltage. Light standard.
  • step S130 different methods may be used to determine the latest gear dimming standard of the optical switchable device.
  • self-calibration when self-calibration is performed through only one specified dimming gear, self-calibration will be performed in combination with a pre-stored data table between different dimming gears and preset state voltages.
  • self-calibration when self-calibration is performed through multiple specified dimming gears, self-calibration can be performed by constructing a fitting functional relationship between the gear capacity of the dimming gear and the state voltage.
  • Figure 4 shows a flow chart of a control method for an optical switchable device that performs self-calibration based on a pre-stored data table in some embodiments of the present application. Please refer to Figure 4.
  • the control method of the optical switchable device can perform self-calibration with a specified dimming gear and a pre-stored data table between different dimming gears and preset state voltages. , the specific steps are explained below.
  • Step S310 is to control the optical switchable device to be in a designated dimming gear after entering the self-calibration mode (that is, after step S110), and obtain the actual state voltage corresponding to the designated dimming gear, such as OCV.
  • the number of dimming gears of the optical switchable device is not particularly limited. Different numbers of dimming gears can be set according to different user needs, usage scenarios, etc. For example, the number of dimming gears can be limited, or the number of dimming gears can be unlimited to achieve an infinite dimming effect.
  • the optical switchable device may include, for example, 11 dimming gears, and the above-mentioned specified dimming gear may be any one of gears 1 to 11.
  • the designated dimming gear may be the highest dimming gear or the lowest dimming gear of the optical switchable device, that is, the above-mentioned 1st gear or 11th gear. This is because the actual detected cut-off current can be used to determine whether the lowest gear or the highest gear has been reached, without involving any assumptions about the capacity of the gear and the functional relationship. Therefore, the accuracy is higher, and the adjustment method is more convenient.
  • Step S320 is to query the pre-stored data table that has a corresponding relationship between different dimming gears and the preset state voltage, and will include the set of pre-stored data where the dimming gear specified in step S310 corresponds to the actual state voltage, as the optical The latest level dimming standard for switchable devices.
  • the above-mentioned pre-stored data table reflects the corresponding relationship between different dimming gears and the preset state voltage, which can be obtained in advance through testing.
  • Table 1 the degree of aging of the optical switchable device is different under different usage periods. Therefore, the preset state voltage corresponding to the same dimming gear can be different, where the preset state voltage in Table 1
  • the state voltage take the value of the preset OCV as an example. It can be understood that the data in the pre-stored data table here is only an example and does not serve as a corresponding limit for the state voltage of each dimming gear, such as OCV.
  • level 1 as the designated dimming level and the above data table as an example
  • the second group The OCV corresponding to the first gear included in the data is -0.5V. Therefore, it can be determined that the second set of pre-stored data conforms to the current offset state of the device, so it is used as the latest gear dimming standard of the optical switchable device. In other words, the data in the second group will be used as the charging or discharging reference data for the target gear when shifting gears.
  • multiple above-mentioned pre-stored data tables may also be obtained according to different temperatures.
  • multiple temperature intervals can be divided according to the temperature, such as the intervals -20°C to 10°C, 10°C to 40°C, and 40°C to 85°C.
  • different temperature intervals correspond to different temperature intervals as shown in Table 1 Data tables in the form of (each table has the same format, but the specific data values may be different). For example, the OCV related data in Table 1 above was tested in the temperature range of 10°C to 40°C.
  • the span of each of the above temperature intervals can be narrowed, that is, the temperature range can be divided more finely to obtain more temperature intervals.
  • the span can be reduced to 5°C, 10°C, 20°C, etc.
  • the corresponding temperature intervals can be Including 10°C ⁇ 15°C, or 10°C ⁇ 12°C, or 10°C ⁇ 20°C, or 10°C ⁇ 30°C, etc.
  • the specific selection can be based on actual needs and is not limited here.
  • a temperature value can be set to correspond to a data table. For example, when the temperature is T1, a data table as shown in Table 1 above can be tested; when the temperature is set to T2, the same test can be obtained. Get a data table, etc., and then just perform the self-calibration operation according to the temperature value or the data table in the temperature range that matches the current ambient temperature. Therefore, by setting pre-stored data tables at different temperatures, the state voltage, such as OCV data, can be more accurately controlled to achieve a more accurate calibration effect.
  • the ambient temperature when entering the self-calibration mode is obtained, and after obtaining the corresponding actual state voltage, the target pre-stored data table that matches the current ambient temperature is determined from multiple pre-stored data tables, and based on the target pre-stored data
  • the table performs a query operation to determine the latest gear dimming standard for the optical switchable device.
  • the above matching refers to which temperature range the current ambient temperature falls in, indicating that it matches the temperature range; or, when one temperature corresponds to a pre-stored data table, the pre-stored data table corresponding to the current ambient temperature is selected.
  • the optical switchable device adjusts a specified dimming gear and combines it with pre-stored data.
  • OCV temperature on state voltage
  • Figure 5 shows a flow chart of a control method for an optical switchable device that performs self-calibration based on a preset relationship in some embodiments of the present application.
  • some embodiments propose a method for controlling an optical switchable device. The method uses multiple specified dimming gears and combines fitting functions between gear capacities and state voltages of different dimming gears. To perform self-calibration, the specific steps are explained below.
  • Step S410 is to control the optical switchable device to be in a plurality of different designated dimming gears in sequence after entering the self-calibration mode, and obtain the actual state voltage corresponding to each designated dimming gear.
  • the multiple designated dimming gears can be randomly generated through a program, or can be artificially designated.
  • the specific number is not limited. For example, it can be set according to the needs of the actual situation, for example, according to fitting Selection of the order of the function, that is, when the fitting function is a third-order function, the number of specified dimming gears can be selected to be at least three.
  • the fitting function is a fourth-order function
  • the number of specified dimming gears can be selected. At least four etc.
  • the specified dimming gears can be 2, 5, 8, or select 1 to 4, or select 3, 6, 9, 11 gear, etc., or select gears 5 to 9, etc.
  • Step S420 is to calculate the state voltage and the gear capacity of the optical switchable device in the current state according to the actual state voltage corresponding to each designated dimming gear and combined with the preset relationship between the dimming gear and gear capacity. The fitting function between .
  • the gear capacity corresponding to each dimming gear is preset to have the following relationship. It can be seen that when the optical switchable device is in different aging states, the proportion of the gear capacity corresponding to each dimming gear to the total capacity can remain unchanged.
  • the OCV corresponding to each dimming gear will change, and its corresponding total capacity will also change accordingly, such as those shown in Table 3.
  • the values of Qa, Qb, Qc and Qd shown can be different from the initial total capacity Q0.
  • the optical switchable device when the optical switchable device is in different aging states, its total capacity changes, and the proportion of the gear capacity corresponding to each dimming gear to the total capacity can remain unchanged (i.e., the proportional fraction or The scaling factor can remain unchanged).
  • the device can be fully charged first (for example, adjusting the dimming gear of the device to the lowest gear or the highest gear), and then discharging the device from the fully charged state to the fully discharged state (for example, adjusting the dimming gear of the device to the lowest gear or the highest gear).
  • the dimming gear of the device is adjusted to the highest gear or the lowest gear accordingly).
  • the device can be fully discharged first (for example, adjusting the dimming gear of the device to the highest or lowest gear), and then the device can be charged from the fully discharged state to the fully charged state (for example, by adjusting the dimming gear of the device to the highest or lowest gear). Adjust the dimming gear of the device to the lowest gear or the highest gear accordingly), and by detecting the charging capacity of the device from full to full charge, the total capacity of the current device can be determined. In some embodiments, the discharge capacity and charging capacity of the device can also be detected simultaneously, and the smaller value thereof is used as the total capacity of the current device.
  • the dimming gear can be fitted.
  • the functional relationship between the state voltage, such as OCV, and the gear capacity can be calculated without detecting them one by one. Therefore, , that is, the OCV corresponding to all dimming gears is obtained, and used as the reference data for the latest gear charging or discharging.
  • multiple functional relationships between the state voltage of the dimming gear and the gear capacity can also be fitted by combining the preset relationship between the gear capacity and the specified dimming gear. For example: when the specified dimming gear is specified, When the light gear is 1-3 or any gear in between, the first functional relationship between the state voltage and the gear capacity in the gear range can be fitted; when the specified dimming gear is 4-8 When the specified dimming gear is 9-11 or any gear in between, the second functional relationship between the state voltage and the gear capacity in the gear range can be fitted. When , the third functional relationship between the state voltage and the gear capacity in the gear interval can be fitted.
  • the above-mentioned preset relationship between gear capacity and dimming gear may have different performance responses due to different temperatures. For this reason, different temperature values can be obtained by testing in advance. Or multiple sets of the above-mentioned preset relationships corresponding to the temperature range, so that the set that matches the current ambient temperature can be used for self-calibration, thereby obtaining more accurate calibration results.
  • a set of preset relationships matching the current ambient temperature can be determined, and then the state of the optical switchable device in the current state can be calculated using the set of preset relationships.
  • the fitting function between the voltage and the gear capacity of the dimming gear is used to determine the latest gear dimming standard for optical switchable devices.
  • the optical switchable device uses multiple designated dimming gears to perform fitting and update of the functional relationship between the gear capacity of each gear and the state voltage, such as OCV, to obtain the device's
  • the functional relationship between the gear capacity and OCV at different times, and the updated functional relationship is used to determine the latest charging or discharging reference data for each gear.
  • This method can effectively solve the problem of gear shift caused by the aging of electrochromism during use, prevent damage to the device due to overcharge and overdischarge, and thereby increase the service life of the device.
  • Figure 6 shows a schematic structural diagram of a control system of an optical switchable device according to some embodiments of the present application.
  • a control system 100 for an optically switchable device exemplary, the optically switchable device
  • the control system 100 of the switching device includes:
  • Mode control module 110 used to control the optical switchable device to enter the self-calibration mode
  • the shift control module 120 is used to adjust the optical switchable device to at least one designated dimming gear, and obtain at least one actual state voltage corresponding to the designated dimming gear;
  • the calibration calculation module 130 is configured to determine the optical fiber based on the at least one actual state voltage, combined with the correlation between the dimming gear and the preset state voltage, or the correlation between the gear capacity and the state voltage.
  • the optical switchable device includes a processor and a memory, wherein the memory stores a computer program, and the processor runs the computer program, thereby making the optical switchable device Execute the functions of each module in the above optical switchable device control method or the above optical switchable device control system.
  • the present application also provides a computer-readable storage medium for storing the computer program used in the above optical switchable device.
  • each block in the flowchart or block diagrams may represent a module, segment, or portion of code that contains one or more components for implementing the specified logical function(s). Executable instructions. It should also be noted that, in alternative implementations, the functions noted in the block may occur out of the order noted in the figures.
  • each block in the structure diagrams and/or flowchart illustrations, and combinations of blocks in the structure diagrams and/or flowchart illustrations can be configured with specialized hardware-based systems that perform the specified functions or actions. to be implemented, or may be implemented using a combination of dedicated hardware and computer instructions.
  • each functional module or unit in each embodiment of the present application can be integrated together to form an independent part, each module can exist alone, or two or more modules can be integrated to form an independent part.
  • the functions are implemented in the form of software function modules and sold or used as independent products, they can be stored in a computer-readable storage medium.
  • the technical solution of this application is essentially or the part that contributes to the existing technology or the part of the technical solution can be embodied in the form of a software product
  • the computer software product is stored in a storage medium and includes a number of instructions to cause a computer device (which can be a smart phone, a personal computer, a server, or a network device, etc.) to execute all or part of the methods described in various embodiments of this application. step.
  • the aforementioned storage media include: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), magnetic disk or optical disk and other media that can store program code. .

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  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Electronic Switches (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)

Abstract

Des modes de réalisation de la présente demande concernent un procédé de commande et un système de commande pour un dispositif optiquement commutable, et un dispositif optiquement commutable. Le procédé de commande pour le dispositif optiquement commutable comprend les étapes consistant à : commander un dispositif optiquement commutable pour entrer dans un mode d'auto-étalonnage ; ajuster le dispositif optiquement commutable pour qu'il soit dans au moins un engrenage de gradation désigné et obtenir au moins une tension d'état réelle correspondant à l'engrenage de gradation désigné ; et sur la base de l'au moins une tension d'état réelle en combinaison avec la corrélation entre l'engrenage de gradation et une tension d'état prédéfinie ou la corrélation entre une capacité d'engrenage et la tension d'état, déterminer la dernière norme de gradation d'engrenage du dispositif optiquement commutable. Dans le procédé, une opération d'auto-étalonnage est effectuée sur la base de la tension d'état, de telle sorte que le problème d'écart d'engrenage provoqué par le vieillissement pendant l'utilisation du dispositif optiquement commutable peut être résolu, et la durée de vie du dispositif est prolongée.
PCT/CN2023/099103 2022-07-26 2023-06-08 Procédé de commande et système de commande pour dispositif à commutation optique, et dispositif à commutation optique WO2024021900A1 (fr)

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