Application of machine vision in liquid level detection

In recent years, the application of machine vision technology has spread to all walks of life in the national production, and its application in medical, food safety and other aspects has received more and more attention. A simple example is the detection of liquid drug liquid levels. Traditional liquid level detection methods, including laser measurement and ultrasonic measurement, have many shortcomings such as low detection efficiency, high false detection rate, and high cost. The application of vision technology not only solves these problems, but also has a low investment and no pollution, and is welcomed by users. In the following, we will take the eye drop liquid level detection project done by Wei Shi image as an example to introduce the composition and operation mode of this system in detail for everyone.

Liquid medicine bottle test

The eye drops shown in the figure above are one of the common liquid medicines. After filling, the liquid level needs to be detected. The characteristics of this type of product are light transmission, and the backlight can be used to capture relatively clear contours and liquid surface positions. The detection picture shown below is a picture taken with the Vesip 120WCCD Gigabit Ethernet camera and lens combined with the backlight. The number of the lower corner of the eye drop is used as a matching feature, and then the liquid level and the bottom of the bottle meet the set threshold range to determine whether the liquid level is qualified. The OK / NG signal is output to the lower computer to realize the automatic detection of the liquid level. .

Level detection

Level detection

    Similar configuration and software functions can also be used in other liquid level detection projects, such as beverage bottle filling level detection, oral liquid, cosmetic ampoule level detection, etc. If you have similar product requirements, please contact us , iJUNCO will provide you with thoughtful service.