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CN-121993824-A - Control method of range hood, range hood and intelligent integrated kitchen range

CN121993824ACN 121993824 ACN121993824 ACN 121993824ACN-121993824-A

Abstract

The application relates to the technical field of intelligent household appliances, in particular to a control method of a range hood, the range hood and an intelligent integrated kitchen range. The method comprises the steps of calculating a polarization angle offset according to the polarization state of a light beam of the lighting device, calculating the attenuation rate of the lighting device according to the polarization angle offset, and calculating the compensation value of the driving current of the lighting device according to the attenuation rate. The application can avoid the brightness and color temperature change caused by light attenuation and improve the user experience.

Inventors

  • HE LIBO

Assignees

  • 宁波方太厨具有限公司

Dates

Publication Date
20260508
Application Date
20260108

Claims (10)

  1. 1. The control method of a range hood, the range hood includes the range hood, illuminator and locates the photoelectric detection device of polarization state in the direction of the light beam of the said illuminator, the said photoelectric detection device of polarization state is used for detecting the polarization state of the said illuminator light beam, characterized by that, the said method includes: calculating the polarization angle offset according to the polarization state of the light beam of the lighting device; Calculating the attenuation rate of the lighting device according to the polarization angle offset; and calculating a compensation value of the driving current of the lighting device according to the attenuation rate.
  2. 2. The control method of a range hood according to claim 1, wherein the polarization state photoelectric detection device comprises three groups of photoelectric detection components, the photoelectric detection components comprise a polarizer, a polarization analyzer and a photoelectric sensor, angles between the polarizer and the polarization analyzer in the three groups of photoelectric detection components are respectively 0 °, 45 ° and 90 °, the polarization states comprise polarization component differences in 0 ° and 90 ° directions and polarization components in 45 °, and the calculating the polarization angle offset according to the polarization state of the light beam of the illumination device comprises: Calculating a polarization angle measurement value according to the polarization component difference between the 0-degree and 90-degree directions and the polarization component of the 45-degree direction; And calculating the difference value between the polarization angle measurement value and the polarization angle calibration value to obtain the polarization angle offset.
  3. 3. The control method of a range hood according to claim 2, wherein calculating a compensation value of a driving current of the lighting device according to the attenuation rate comprises: Calculating the product of the attenuation rate and the compensation gain to obtain a compensation coefficient; And calculating the product of the initial value of the driving current of the lighting device and the compensation coefficient, and the sum of the product of the initial value of the driving current and the compensation coefficient to obtain the compensation value of the driving current of the lighting device.
  4. 4. The control method of a range hood according to claim 1, wherein the lighting device comprises a plurality of sets of lamp beads of different color temperatures, the method comprising: and sequentially controlling the lamp beads of each group to be lightened so as to obtain the compensation value of the driving current corresponding to each group of lamp beads.
  5. 5. The control method of a range hood according to claim 4, further comprising: When the attenuation rate is larger than the attenuation rate threshold, an alarm signal is output to remind the replacement of the corresponding lamp bead.
  6. 6. The control method of a range hood according to claim 1, wherein calculating the decay rate of the lighting device according to the polarization angle offset during cooking of the range comprises: Separating an oil smoke noise signal and a lamp bead attenuation signal from the polarization angle offset; and calculating the attenuation rate of the lighting device according to the lamp bead attenuation signal.
  7. 7. The control method of a range hood according to claim 6, further comprising: According to the oil smoke noise signal, calculating the oil smoke concentration; And controlling the rotating speed of the fan according to the oil smoke concentration.
  8. 8. The method of controlling a range hood according to claim 1, wherein the polarization state comprises a total light intensity, the method further comprising: determining the thickness of the greasy dirt according to the ratio of the current total light intensity to the initial total light intensity; and when the thickness of the oil stain is greater than a thickness threshold value, outputting a cleaning reminding signal.
  9. 9. A range hood comprising a range hood, a lighting device, a processor and a polarization state photoelectric detection device arranged in the direction of the light beam of the lighting device, wherein the polarization state photoelectric detection device is used for detecting the polarization state of the light beam of the lighting device, and the processor is used for executing the steps of the method of any one of claims 1 to 8.
  10. 10. An intelligent integrated kitchen range, which is characterized by comprising the range hood and a kitchen range as claimed in claim 9.

Description

Control method of range hood, range hood and intelligent integrated kitchen range Technical Field The application relates to the technical field of intelligent household appliances, in particular to a control method of a range hood, the range hood and an intelligent integrated kitchen range. Background The range hood is an electrical appliance which is necessary for people to cook and smoke and is used for cooking, the existing range hood is generally provided with an LED lamp as a cooking area light source for illumination in a cooking process, and a user with higher requirements also provides requirements for adopting multi-color temperature mixed illumination. The LED lamp has obvious light attenuation characteristics, mainly reduces output light power under the same input power along with the change of service time and junction temperature (semiconductor actual working temperature), and meanwhile, color temperature can shift to high color temperature along with the aggravation of light attenuation, and the change of brightness and color temperature caused by light attenuation can influence the change of dish color and luster and viewing experience in the cooking process of a user, so that the cooking experience of the user is influenced. Disclosure of Invention Based on the above, it is necessary to provide a control method of a range hood, a range hood and an intelligent integrated cooker. In a first aspect, the present application provides a control method of a range hood, where the range hood includes a range hood, an illumination device, and a polarization state photoelectric detection device disposed in a direction of a beam of the illumination device, where the polarization state photoelectric detection device is used to detect a polarization state of the beam of the illumination device, and the method includes: calculating the polarization angle offset according to the polarization state of the light beam of the lighting device; Calculating the attenuation rate of the lighting device according to the polarization angle offset; and calculating a compensation value of the driving current of the lighting device according to the attenuation rate. In some embodiments, the polarization state photoelectric detection device comprises three groups of photoelectric detection components, wherein the photoelectric detection components comprise a polarizer, an analyzer and a photoelectric sensor, the angles between the polarizer and the analyzer in the three groups of photoelectric detection components are respectively 0 DEG, 45 DEG and 90 DEG, the polarization state comprises a polarization component difference between 0 DEG and 90 DEG and a polarization component in 45 DEG, and the calculating the polarization angle offset according to the polarization state of the light beam of the illumination device comprises: Calculating a polarization angle measurement value according to the polarization component difference between the 0-degree and 90-degree directions and the polarization component of the 45-degree direction; And calculating the difference value between the polarization angle measurement value and the polarization angle calibration value to obtain the polarization angle offset. In some embodiments, the calculating a compensation value for the driving current of the lighting device according to the decay rate comprises: Calculating the product of the attenuation rate and the compensation gain to obtain a compensation coefficient; And calculating the product of the initial value of the driving current of the lighting device and the compensation coefficient, and the sum of the product of the initial value of the driving current and the compensation coefficient to obtain the compensation value of the driving current of the lighting device. In some embodiments, the lighting device comprises a plurality of sets of light beads of different color temperatures, the method comprising: and sequentially controlling the lamp beads of each group to be lightened so as to obtain the compensation value of the driving current corresponding to each group of lamp beads. In some embodiments, the method further comprises: When the attenuation rate is larger than the attenuation rate threshold, an alarm signal is output to remind the replacement of the corresponding lamp bead. In some embodiments, during cooktop cooking, the calculating the decay rate of the lighting device from the polarization angle offset comprises: Separating an oil smoke noise signal and a lamp bead attenuation signal from the polarization angle offset; and calculating the attenuation rate of the lighting device according to the lamp bead attenuation signal. In some embodiments, the method further comprises: According to the oil smoke noise signal, calculating the oil smoke concentration; And controlling the rotating speed of the fan according to the oil smoke concentration. In some embodiments, the polarization state comprises a total light intensity