JPH0228048B2 - KANETSUCHORIKI - Google Patents

Description

[Detailed description of the invention]

INDUSTRIAL APPLICATION FIELD The present invention relates to a cooking device that heats food by externally setting the heating time and temperature to arbitrary values using a volume control. Conventional configuration and its problems If we show the procedure for setting the time in a heating cooker in which the heating time and temperature can be set by turning the volume control, first, the heating time and temperature can be set by turning the volume. Since a voltage value is generated, a microcomputer with a built-in A/D converter reads this voltage value, and a fluorescent display tube displays the heating time and heating temperature corresponding to the voltage value.
Here, in conventional heating cookers, the voltage value read data by the microcomputer is displayed as is without comparison with the previous read data. In other words, the so-called double check, in which the data is determined to be true and processed only when the read data of the voltage value matches two or more times in a row, or more multiple checks have not been performed. Here, a specific example of display will be given. In Figure 2, if the voltage value depending on the rotational position of timer volume 2 that sets the heating time is -3.5V, then ND
The converter divides 0V-5V by 63, so -3.5V
corresponds to 2 minutes 50 seconds at level 19 from the table below, and 2 minutes 50 seconds is the set time for fluorescent display tube 4 in Figure 2.
to be displayed. Next, if you want to set another heating time, for example 28 minutes, turn the timer volume 2 from the table below to set the output voltage to about -0.27V, and 28 minutes 00 seconds will be displayed. However, even if you do not turn timer volume 2, if noise is added to timer volume 2 and the A/D conversion value changes by one level or more, the heating time will be displayed differently from the previous time, so as a result, the noise will cause a different heating time display. The display will flicker.

【table】

Claims (1)

[Claims] 1. A heating means for heating an object to be heated, a control unit for controlling the heating means, a volume for setting a heating time and a heating temperature, a means for reading an output value of the volume at regular intervals, and a controller for controlling the heating volume. A means for storing an output value immediately before a certain point in time (hereinafter referred to as the previous output value), a means for comparing this previous output value with an output value at a certain point in time, and a counter for counting the number of times the output values match, a means for converting the output value of the volume into a corresponding time temperature and displaying the same when the counted value exceeds a certain number of times, and a means for setting the heating time and heating temperature. means for determining that the volume output value is being set when the value at a certain point in time changes from the value one time before; a counter that counts a certain period of time from when the volume output value is no longer being set; means for determining that the volume is in operation until a certain period of time (approximately 2 seconds) is counted from when it is no longer being set, and that it is not in operation at other times; This heating cooker is configured such that this fixed number of times, which is displayed only when the number exceeds the number of times, is set to different values during operation and non-operation, and the number is increased during non-operation.