Integral multi-parameter water quality on-line monitoring device and control method thereof

Abstract

The invention discloses an integral multi-parameter water quality on-line monitoring device which is provided with a residual chlorine-water temperature sensor, a turbidity sensor and a water level sensor, and signal lines thereof are respectively connected with a single-chip microcomputer; the device is characterized in that the single-chip microcomputer is also connected with a keyboard input circuit, an output display circuit, an EEROM memory, a sound-light alarm circuit and a communication circuit; the output display circuit displays the concentration value, the turbidity value, the waterlevel height valve and the temperature valve of the residual chlorine in a circulating way; when a parameter exceeds the alarm value, the sound-light alarm circuit gives off sound-light alarm signals; the invention also expresses a control method which mainly comprises the following steps: system initiation, data acquisition, data processing and display, comparison and alarm; data acquisition adopts weighted average, data processing adopts moving average; and finally the invention can support the simultaneous on-line detection of a plurality of parameters, has the advantages of low cost, simple structure, convenient installation and debugging and high precision, and is very applicable to the water quality detection of small rural water plants.

Description

technical field [0001] The invention relates to the technical field of water quality monitoring, in particular to an integrated multi-parameter water quality on-line monitoring device and a control method thereof. Background technique [0002] In water supply production, in order to meet drinking water safety indicators, real-time online detection of water quality is necessary. The parameters of online detection of water quality often include residual chlorine concentration, turbidity concentration, water temperature and pH value, etc. [0003] However, at present, various parameter detection needs to be carried out by using separate equipment or sensors. In the installation process of various equipment or sensors, a separate installation mechanism needs to be provided. For the water quality online detection system, the separation of various sensors Installation, large volume, complex structure, high technical requirements, inconvenient installation, and relatively high cost...

AI Technical Summary

Problems solved by technology

[0003] However, at present, various parameter detection needs to be carried out by using separate equipment or sensors. In the installation process of various equipment or sensors, a separate installation mechanism needs to be provided. For the water quality online detection system, the separation of various sensors Installation, large volume, complex structure, high technical requirements, inconvenient installation, and relatively high cost of equipment operation and maintenance

[0004] Chinese utility model patent application 200520009768.1 discloses an online comprehensive parameter measurement and control instrument for water supply. Although the patent document mentions a water quality online monitoring device that supports multiple parameters, its circuit structure is complicated, and the detection results of various parameters are also used. The separate display module shows that it not only increases the system cost, but also makes the device bulky. The turbidity sensor and residual chlorine sensor used are also independent installations, and no integrated device is used, so the maintenance and debugging of the device are still very complicated. The requirements are relatively high, and the specific control method of the instrument is not disclosed in the patent document, and relevant technical personnel are still unable to achieve the optimal control effect through the disclosed technology

[0005] The disadvantages of the prior art are: the parameter detection of drinking water or tap water is mostly carried out by separate equipment or sensors, and the functions of various equipment are single, and installation and debugging are inconvenient. Although the existing patent documents mention a multi-parameter water quality Online measurement and control instrument, but the device is large in size, complex in structure, and high in cost. The test results of various parameters are displayed by an independent display module, and the installation of the sensor is inconvenient. It is not very suitable for small water supply plants in large villages and towns.

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