System and method for realizing automatic monitoring of pH value of deep level solution based on electrochemical ion selective electrode method

Abstract

The invention discloses a system and method for realizing automatic monitoring of the pH value of deep level solution based on the electrochemical ion selective electrode method. The system comprises a microprocessor unit, a pH electrode, a signal conditioning unit, a temperature acquisition unit, a CAN bus communication unit, an upper computer control management unit and a load power management unit, wherein the accurate intelligent compensation software is installed in the microprocessor; the load power management unit is used for converting battery voltage into voltage for circuit operation and controlling corresponding load switches to supply operation voltage to the signal conditioning unit, the temperature acquisition unit and the CAN bus communication unit; the signal conditioning unit outputs the input of the microprocessor unit; the output end of the temperature acquisition unit is connected with the Input / Output port of the microprocessor unit; the upper computer control management unit configures and modifies the parameter and demand of the microprocessor unit through the CAN bus communication unit. The system has the advantages that the ultra low power loss operation can be realized, the support of a power source is not required, the difficult problems that the deep level electrode is pressure resistant and manual correction cannot be performed due to long-term online operation are solved, and the pH valve of deep level root position solution can be monitored automatically.

Description

technical field [0001] The invention belongs to the field of automatic testing, and in particular relates to an automatic monitoring system and method for deep-position multi-layer in-situ automatic monitoring of the pH value of a tested solution. Background technique [0002] In the monitoring of groundwater or deep ocean water, obtaining the pH value information under the original pressure and temperature of the monitored water is of great significance for mastering water quality, studying chemical reaction mechanism, and carrying out prediction and early warning. [0003] At present, water pH monitoring mainly includes two methods: sampling and in-situ automatic monitoring. Water body monitoring by sampling method is an offline test, and the pressure and temperature environment of the measured water body will change. At the same time, there is a risk of secondary pollution during the water sample acquisition process, which greatly weakens the authenticity of the measured ...

AI Technical Summary

Problems solved by technology

The water body monitoring of the sampling method is an offline test, and the pressure and temperature environment of the measured water body will change. At the same time, there is a risk of secondary pollution during the water sample acquisition process, which greatly weakens the authenticity of the measured information

At present, ultra-low power consumption, electrode withstand voltage, long-distance transmission, and high-precision intelligent compensation algorithm are important factors that restrict the long-term realization of deep in-situ automatic monitoring of pH value in water bodies. The existing mature in-situ automatic monitoring system for pH value is relatively deep Shallow (≦300 meters), need to have a power supply on site to provide power for the deep monitoring device, does not have a high-precision intelligent compensation mechanism, and the accuracy is low, which is far from meeting the technical needs of related fields

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