Multi-parameter monitoring system for industrial water quality based on radio frequency identification

Abstract

The invention discloses an industrial water quality multi-parameter monitoring system based on radio frequency identification, which includes a detection terminal and a monitoring terminal connected thereto. The detection terminal includes a heavy metal detection module, a PH detection module, an ORP detection module, a conductivity detection module, a dissolution Oxygen detection module, temperature detection module, microcontroller module, data transmission module and power supply module; Described heavy metal detection module, PH detection module, ORP detection module, conductivity detection module, dissolved oxygen detection module and temperature detection module are respectively connected with micro The controller module is connected, and the data transmission module and the power supply module are respectively connected on the corresponding ports of the micro-controller module; the present invention integrates multi-function detection, and one instrument can detect multiple parameters, which is convenient for application, and the second is convenient for measurement The unified extraction and processing of the signal improves the analysis accuracy of the solution or water quality, and also greatly improves the cost performance of the sensor.

Description

technical field [0001] The invention relates to a water quality multi-parameter sensor, in particular to an industrial water quality multi-parameter monitoring system based on radio frequency identification, which belongs to the field of water quality detection. Background technique [0002] Aquaculture water is affected by human activities and other factors, causing substances entering the water body to exceed the self-purification capacity of the water body, resulting in deterioration of water quality and affecting the use of water bodies. The main pollutants are: heavy metal pollutants, non-metallic inorganic toxic pollutants, toxic organic matter, oxygen-consuming organic matter, acid and alkali pollutants, which will seriously affect the development of the aquaculture industry. In view of this, the industry has developed a variety of water quality testing equipment, but the comprehensive testing capabilities of such equipment are often insufficient, and the testing para...

AI Technical Summary

Problems solved by technology

Most of the current sensors of the same type have a single function. In the case of multi-parameter detection, it is generally necessary to set up different sensors separately.

This setting not only makes the measurement facilities cumbersome and inconvenient for the unified processing of parameter signals, but also causes errors in the comprehensive analysis of solution or water quality due to the difference in the installation position of each sensor, and the single function of the sensor also increases the use and manufacturing costs.

[0005] In addition, since the reference buffer solution needs to penetrate into the measured solution through the salt bridge during the test of the pH glass electrode, the following problems are inevitably caused: First, the concentration of chloride ions in the reference solution is gradually changing, resulting in the measurement results slow drift

In the measurement occasions that require very high pH accuracy, the electrode needs to be calibrated frequently, which is not only time-consuming, but also not conducive to continuous measurement; second, when the pressure of the reference solution is lower than the pressure of the solution to be tested, it will The reverse osmosis of the solution to be tested to the reference solution through the salt bridge will cause measurement inaccuracy and even sensor failure; the third is that with the loss of the reference solution, the measurement accuracy will not meet the requirements, and the sensor will be scrapped , short service life

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