Intelligent liquid level sensor

Abstract

The invention discloses an intelligent liquid level sensor, comprising a pressure sensor, an A / D converter, a processor, an RS232 serial port communication and a host computer, the A / D converter adopts ADC0804 for acquisition and conversion; the processor adopts STC89C52 Single-chip microcomputer, through the STC89C52 single-chip microcomputer to control the signal acquisition and conversion of ADC0804 and the control of RS232 serial port communication; the RS232 serial port communication mainly communicates with the PC through the USB to serial port line, and transmits the data collected and converted by ADC0804 to the upper computer to display the Measure the liquid level. An intelligent liquid level sensor of the present invention uses a pressure sensor to measure the pressure of the liquid level, ADC0804 collects and converts the analog voltage output by the pressure sensor and sends it to the single-chip microcomputer, and then transmits it to the upper computer through RS232 serial port communication to display the height of the liquid level .

Description

technical field [0001] The invention relates to an intelligent liquid level sensor. Background technique [0002] Liquid level detection has become more common in many control fields. There are many types of liquid level detection sensors. According to the principle, there are float type, pressure type, ultrasonic type, and air blowing type. Various methods are designed according to their needs. Their structure, range and accuracy are suitable for different occasions. Most of them have complex structures and high manufacturing costs. There are also ready-made liquid level gauges on the market, including drop-in type, float type, Spring type, etc., most of the finished products have amazing prices. [0003] Although the application of liquid level sensors is very extensive, the price of high-precision liquid level sensors is very expensive, and it is still difficult to realize civilian use. Therefore, the present invention utilizes a smaller cost to design and produce a bet...

AI Technical Summary

Problems solved by technology

Various methods are designed according to their needs. Their structure, range and accuracy are suitable for different occasions. Most of them have complex structures and high manufacturing costs. There are also ready-made liquid level gauges on the market, including drop-in type, float type, Spring type, etc., most of the finished products have amazing prices

[0003] Although the application of liquid level sensors is very extensive, the price of high-precision liquid level sensors is very expensive, and it is still difficult to realize civilian use.

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