Control method and control system for preventing temperature overshoot

Abstract

The invention discloses a control method for preventing temperature overshoot, which includes the following steps: S001: setting the preset temperature T0; S002: setting a counter, wherein, when the water quantity control switch is switched from a low position to a high position, the counter display The value is 0; when the water volume control switch is switched from the high position to the low position, the display value of the counter is greater than 0; S003: judge the display value of the counter; S004: set the target temperature according to the judgment result of step S003, such as the display value of the counter If it is 0, set the target temperature T=T0; if the display value of the counter is greater than 0, then set the target temperature T=T0-T1; S005: maintain the target temperature T=T0-T1 for a period of time and then return to the preset temperature T0. The invention also discloses a control system for preventing temperature overshoot. The temperature overshoot prevention control method or control system provided by the present invention ensures that the temperature overshoot phenomenon is avoided when gears are switched, and brings comfortable experience to users.

Description

technical field [0001] The invention relates to the technical field of intelligent toilet water temperature control, in particular to a control method and a control system for preventing temperature overshoot. Background technique [0002] The smart toilet has one or several nozzles for flushing the private parts of the human body, so the control of the water temperature is particularly important. [0003] Normal water temperature heating has its fixed feedback algorithm. It can meet the requirements when the water output is constant. [0004] However, during use, sometimes it is necessary to adjust the water volume through the water volume control switch. When the water volume control switch is switched from high gear to low gear, the water volume will decrease rapidly. [0005] For such a sudden change in water volume, since feedback is needed to adjust the heating power, relying solely on the algorithm will have a hysteresis process. The above-mentioned hysteresis proc...

AI Technical Summary

Problems solved by technology

[0005] For such a sudden change in water volume, since feedback is needed to adjust the heating power, relying solely on the algorithm will have a hysteresis process. The above-mentioned hysteresis process will lead to temperature overshoot, especially when the water volume suddenly decreases, and the original heating device still exists. Its own thermal inertia, which leads to higher water temperature, which leads to uncomfortable user experience

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