Small automatic sewage treatment control system

Abstract

The invention discloses a small automatic sewage treatment control system. The system comprises a central control machine, a printer and a controller; and the printer is connected with the central control machine, and the controller is connected and communicated with the central control machine by adopting an RS-485 communication network through a twisted pair. The controller consists of a switch power supply module, a central processing unit (CPU) module, an RS-485 communication module, a switching value input board, a switching value output board and an analog input circuit; the switch power supply module is respectively connected with and supplies power to the CPU module, the RS-485 communication module, the switching value input board, the switching value output board and the analog input circuit; the CPU module is connected with the RS-485 communication module to establish communication with the central control machine; and the switching value input board is connected with the CPU module, the analog input circuit is connected with the CPU module, and the switching value output board is connected with the CPU module. The technology is simple and easily mastered, and the system has low investment cost and low operation and maintenance costs and is economical and practical.

Description

technical field [0001] The invention relates to an automatic control system for sewage treatment, especially for the automatic control of small-scale sewage treatment. Background technique [0002] In recent years, with the acceleration of rural urbanization in my country, the construction of small towns has developed rapidly. However, the rapid economic growth of small towns has also brought about a rapid increase in domestic sewage and industrial wastewater. In addition, infrastructure construction in small towns generally lags behind and lacks necessary sewage treatment facilities, which not only directly destroys the ecology of small towns It has become an important pollution source of regional water environment. [0003] Due to the scattered distribution of small towns, the small scale of sewage treatment and large load changes, higher requirements are put forward for operation management. In addition, the low level of economic development in small towns and the lack o...

AI Technical Summary

Problems solved by technology

However, the rapid economic growth of small towns has also brought about a rapid increase in domestic sewage and industrial wastewater. In addition, infrastructure construction in small towns generally lags behind and lacks necessary sewage treatment facilities, which not only directly destroys the ecology of small towns. environment, and has caused serious pollution of rivers (rivers) and lakes (reservoirs), and has become an important source of pollution for the regional water environment.

[0003] Due to the scattered distribution of small towns, the small scale of sewage treatment and large load changes, higher requirements are put forward for operation management. In addition, the low level of economic development in small towns and the lack of well-trained operation and management personnel make it difficult to master and operate Technically complex processes and equipment

If the automatic control system model of large (medium) urban sewage treatment process is simply applied, not only the structure of the control system is complicated, but also there are many problems such as high initial investment, high maintenance cost, and difficulty in normal operation.

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