At present, household users generally use large-scale drum washing machines. Under the social reality of today’s society and the country’s energy conservation, emission reduction, and environmental protection initiatives, large drum washing machines not only occupy space and consume electricity but also have hygiene issues that cannot be ignored. problem.
Now we have developed a portable ultrasonic washing machine based on the existing technology to basically solve the above problems. First, it is small in size, easy to carry, and does not take up space. The size is about 20x12x8cm3. Second, the power is around 60w.
Compared with the traditional washing machine, even the mini type is more than 100w, so the power consumption is greatly reduced. Third, because the external structure of the cleaning part is simple and regular, unlike the drum type with internal compartments, it is a flat round metal box, which is very convenient to clean and prevent secondary and cross-contamination. The inside of the ultrasonic washing machine based on the C51 single-chip microcomputer makes the piezoelectric ceramic transducer equivalent to the capacitance and the inductor generates LC resonance through the alternating on and off of the high-power switch tube, which converts the electrical signal into a mechanical vibration signal, and pushes the radiating plate and the water. Cavitation”, so as to achieve the purpose of washing clothes.
The 51 single-chip microcomputer is embedded as an external control to realize the start and close of the washing, the reminder of the washing completion, the display of the washing timing and the remaining time to enhance the simple type of human-computer interaction and operation.
This system is an ultrasound-based computer eye protection system. First, through an ultrasonic distance measuring circuit, low-power ultrasonic waves are emitted intermittently, and the distance between the face and the screen is calculated using the time difference principle; then, an interface circuit Connect the distance measurement module to the computer, so that the computer can pass the measured distance; finally, the design program will carry out the subsequent processing of the obtained data, and when it is found that the data received for a period of time is less than the minimum allowable distance, it will be displayed on the screen. Corresponding warning messages will pop up, so as to achieve the purpose of protecting the user’s eyes.