Abstract
Liquid level control is an important parameter control
in the process of industrial control. Its performance and
quality of work not only have a great impact on
production, but also related to the safety of production.
Previously, a large number of liquid level control is by
the staff to operate, so that artificial means a lot of
drawbacks, such as liquid level control, and so on the
night of monitoring, the operator slightly negligence, or
simply monitor parts damaged, will bring irreparable loss,
a more serious crisis to production personnel the
personal safety. So, if the use of sophisticated and
complete production will be in strict accordance with the
provisions of the operation of the automation system, can
maximize the chances of avoiding accidents, but also save
resources and can effectively improve the efficiency of
production.
Through the research of the liquid level control
system, this paper designed a liquid level control system
with 8051 single chip microcomputer as the core and
photoelectric sensor as the detection element, and
realized the alarm and automatic switching function. The
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