Control method, apparatus and equipment for electrochromic device, and storage medium

A control apparatus for an electrochromic device, comprising:

• a determination module, which is configured to determine whether a current transmittance of the electrochromic device reaches a preset transmittance;
• a first charging and discharging module, which is configured to, in response to determining that the current transmittance of the electrochromic device does not reach the preset transmittance, control an external power supply to perform a first mode charging and discharging on the electrochromic device until the current transmittance of the electrochromic device reaches the preset transmittance;
• a potential determination module, which is configured to, in response to determining that the current transmittance of the electrochromic device reaches the preset transmittance, suspend the charging and discharging, continuously monitor whether a current open circuit potential of the electrochromic device is within a preset open circuit potential threshold range;
• and
• a second charging and discharging module, which is configured to, in response to the current open circuit potential of the electrochromic device being not within the preset open circuit potential threshold range, control the external power supply to perform a second mode charging and discharging on the electrochromic device to enable the current open circuit potential of the electrochromic device to be continuously within the preset open circuit potential threshold range.

A dimming equipment, comprising:

• at least one processor;
• a storage apparatus, which is configured to store at least one program;
• wherein the at least one program is executed by the at least one processor, and the at least one processor is configured to:
• determine whether a current transmittance of the electrochromic device reaches a preset transmittance;
• in response to determining that the current transmittance of the electrochromic device does not reach the preset transmittance, control an external power supply to perform a first mode charging and discharging on the electrochromic device until the current transmittance of the electrochromic device reaches the preset transmittance;
• in response to determining that the current transmittance of the electrochromic device reaches the preset transmittance, suspend the charging and discharging, and continuously monitor whether a current open circuit potential of the electrochromic device is within a preset open circuit potential threshold range;
• and
• in response to the current open circuit potential of the electrochromic device being not within the preset open circuit potential threshold range, control the external power supply to perform a second mode charging and discharging on the electrochromic device to enable the current open circuit potential of the electrochromic device to be continuously within the preset open circuit potential threshold range;
• wherein the at least one processor is configured to, in response to the current open circuit potential of the electrochromic device being not within the preset open circuit potential threshold range, control the external power supply to perform the second mode charging and discharging on the electrochromic device to enable the current open circuit potential of the electrochromic device to be continuously within the preset open circuit potential threshold range in the following manner:
• determining whether a current open circuit potential of the electrochromic device is higher than a preset balance potential of the electrochromic device;
• in response to determining that the current open circuit potential of the electrochromic device is higher than the preset balance potential, continuously monitoring the current open circuit potential of the electrochromic device;
• in response to the monitored current open circuit potential of the electrochromic device being higher than an upper limit of the preset open circuit potential threshold range, stopping the charging;
• and in response to the monitored current open circuit potential of the electrochromic device being lower than a lower limit of the preset open circuit potential threshold range, adopting the second mode for the charging until the current open circuit potential reaches the upper limit of the preset open circuit potential threshold range;
• and
• in response to determining that the current open circuit potential of the electrochromic device is not higher than the preset balance potential, continuously monitoring the current open circuit potential of the electrochromic device;
• in response to the monitored current open circuit potential of the electrochromic device being lower than the lower limit of the preset open circuit potential threshold range, stopping the discharging;
• and in response to the monitored current open circuit potential of the electrochromic device being higher than the upper limit of the preset open circuit potential threshold range, adopting the second mode for the discharging until the current open circuit potential reaches the lower limit of the preset open circuit potential threshold range.