Small sewage treatment system based on programmable logic controller (PLC)

Abstract

The invention relates to a sewage treatment system, and particularly relates to a small sewage treatment system based on a programmable logic controller (PLC). The system comprises a PLC, a camera, afault detection module which is connected with the PLC and used for detecting system faults, a power-off protection module which is connected with the PLC and used for performing power-off protectionaccording to a detection result of the fault detection module, a wireless communication module which is connected with the PLC and used for wireless communication, and a water quality detection modulewhich is connected with the wireless communication module and used for detecting water quality of treated water. A monitoring video shot by the camera is coded by a video encoder and then is sent tothe PLC through the wireless communication module, and a handheld terminal is connected with the wireless communication module and used for displaying the detection result of the water quality detection module and the monitoring video. The technical scheme provided by the invention can effectively overcome the problems that in the prior art, transparent supervision cannot be carried out on a sewage treatment process and the amount of a flocculating agent cannot be automatically selected.

Description

technical field [0001] The invention relates to a sewage treatment system, in particular to a PLC-based small sewage treatment system. Background technique [0002] Sewage treatment is the process of purifying sewage to meet the water quality requirements for reuse. Sewage treatment is widely used in various fields such as construction, agriculture, transportation, energy, petrochemical, environmental protection, urban landscape, medical care, catering, etc., and it is also increasingly entering the daily life of ordinary people. According to the classification of sewage sources, sewage treatment is generally divided into production sewage treatment and domestic sewage treatment. [0003] The role of the sewage treatment station is to treat production and domestic sewage to meet the prescribed discharge standards, and it is an important facility for environmental protection. To make these sewage treatment stations really play a role, they need to rely on strict discharge r...

AI Technical Summary

Problems solved by technology

[0006] Aiming at the above-mentioned shortcomings in the prior art, the present invention provides a PLC-based small-scale sewage treatment system, which can effectively overcome the inability to transparently supervise the sewage treatment process and the inability to automatically select the amount of flocculant in the prior art Defects

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