Double-layer rice cooker capable of ultrasonically detecting the softness and hardness of rice and automatically filtering water and its working method

Abstract

The invention discloses a double-layered electric cooker capable of detecting the soft and hard degrees of rice by ultrasounds and automatically filtering water and a working method of the double-layered electric cooker. The electric cooker comprises an outer cooker body, an inner cooker, a solenoid valve control module, a heating module, a temperature acquisition module, an ultrasonic detection module, a signal processing module, a storage module, a control module, a man-machine interaction module and a power supply interface, wherein the ultrasonic detection module comprises an ultrasound sending array and an ultrasound receiving array; and the signal processing module is used for calculating a sound speed of the ultrasounds in a rice-water mixture, comparing the sound speed with sound speed training data stored in a storage for analysis so as to provide control information of opening an inner cavity cooker valve hole, closing the inner cavity cooker valve hole or stopping heating. The double-layered electric cooker can control amount of filtered rice soup and heating time, and the filtered rice soup is stored in an outer cavity of the inner cooker to have a heat insulation effect; the rice is separated from the rice soup, so that the edible value of the rice soup is improved; and meanwhile, the health of people with less required amount on sugar is facilitated.

Description

technical field [0001] The invention relates to an electric rice cooker, in particular to a double-layer electric rice cooker capable of automatic water filtration through ultrasonic detection of the softness and hardness of rice and a working method thereof. Background technique [0002] An electric rice cooker is a kitchen appliance that uses electric heat to cook food (mainly rice), and can perform various cooking operations such as steaming, boiling, stewing, simmering, and braising. It can not only cook food, but also keep it warm. It is clean and hygienic to use, saving time and effort. It is one of the indispensable living utensils for the modernization of housework. [0003] In view of the rice cooking function of the rice cooker, in order to make the cooked rice have a good taste, many smart rice cookers now use some methods to improve the taste of the rice. Mainly include: 1. Transform the shape of the rice cooker body, such as using a spherical kettle shape desig...

AI Technical Summary

Problems solved by technology

[0011] Aiming at the problems that the current electric rice cooker cannot independently control the dryness, wetness, softness and hardness of the rice, and needs to rely on empirical estimation to control the amount of water added, cannot filter out the rice soup, so it does not suit the taste of specific groups of people, rice heat preservation and energy saving, etc.

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