Intelligent temperature control device for electric oven

Abstract

The invention provides an intelligent temperature control device for an electric oven. The device has the functions of zero-point detection, automatic correction of various measurement errors, digital filtering, self diagnosis and power-down protection. The device comprises four modules and an electric oven, wherein the four modules are composed of a main control module, a temperature detection module, a temperature control module and a man-machine interface module. Firstly, the temperature of the electric oven is detected by a temperature sensor and then converted into a millivolt voltage signal. After that, the voltage signal is amplified by an amplifier circuit inside the temperature detection module and then sent to an A/D module. After being subjected to the analog/digital conversion process by the A/D module, the signal is fed to a single-chip microcomputer of the main control module and then subjected to the data processing process by the single-chip microcomputer. After that, the temperature is displayed by a digital tube display module arranged inside the man-machine interface module, and whether to alarm or not is judged at the same time. Meanwhile, the temperature is compared with a preset temperature, and a control variable is figured out according to a preset control algorithm. In this way, the on-off ratio of a solid state relay can be controlled according to the control variable.

Description

technical field [0001] The invention is applied in the field of food processing and baking in restaurants, hotels, enterprises and institutions, and school canteens, and in particular relates to an intelligent temperature controller for an electric oven. Background technique [0002] With the further development of microelectronics and computer technology, smart instruments with microcomputers as the main body will gradually replace conventional traditional instruments. Because no matter in terms of measurement speed, accuracy, degree of automation or cost performance, smart instruments have incomparable advantages over traditional instruments, and can realize zero point, multi-point detection, automatic correction of various measurement errors, digital filtering, self-diagnosis and power-off Protection and other functions, smart meters have penetrated into all aspects of our lives. [0003] Electric oven is one of the main electrical products used in our life. It has been ...

AI Technical Summary

Problems solved by technology

[0003] Electric oven is one of the main electrical products used in our life. It has been widely used in food processing such as restaurants, hotels, enterprises and institutions, and school canteens. The baking objects are mainly bread, non-staple food, etc. Traditional electric ovens The temperature control of the oven is not very effective

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