Heating furnace load detecting method by photosensitive device

Abstract

The invention relates to a heating furnace load detecting method by a photosensitive device. The method comprises the following steps of (1), through a plurality of photosensitive devices mounted in a hearth, detecting shape and size of a load in the hearth; (2), when a master control chip receives a heating instruction, detecting the current condition of food in the hearth through a sensor, and when the sensor detects the food, performing controlling by a control circuit for starting a heating program, and otherwise, stopping a heating program, and generating an abnormity alarm; (3), when a remarkable change of the food shape occurs, calculating the size of the food through the photosensitive devices, transmitting the calculation result to the master control chip, and calculating an optimal heating fire power and time through the master control chip; and (4), according to the heating time and fire power magnitude, controlling food heating time and heating fire power magnitude of a peripheral heating device through the control circuit. The heating furnace load detecting method can prevent heating to an empty position by the heating furnace and furthermore can prevent partial excessive heating, thereby realizing an optimal heating effect of the food.

Description

technical field [0001] The invention relates to the technical field of heating furnaces, in particular to a method for detecting the load of a photosensitive device on a heating furnace. Background technique [0002] With the development of society, heating furnaces such as microwave ovens and ovens have entered every family. They are no strangers to the use of microwave ovens and ovens. When the food is to be heated, if it is activated by mistake, there will be certain safety hazards and affect the life and performance of electrical appliances. Contents of the invention [0003] The purpose of the present invention is to provide a method for detecting the load of a heating furnace by a photosensitive device, which can detect the distribution of food in the furnace cavity more conveniently and quickly, and can provide multiple performance improvements. [0004] To achieve the above object, the present invention adopts the following technical solutions: [0005] A method ...

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Problems solved by technology

[0002] With the development of society, heating furnaces such as microwave ovens and ovens have entered every family. They are no strangers to the use of microwave ovens and ovens. When heating food, if it is activated by mistake, there will be certain safety hazards and affect the life and performance of electrical appliances

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