Online detection device and method for dissolved oxygen content

Abstract

The invention discloses an online detection device and method for dissolved oxygen content, and belongs to the technical field of dissolved oxygen detection. The online dissolved oxygen content detection device comprises an ARM processor, a peripheral circuit, a cloud server, an air humidity sensor, an atmospheric pressure sensor, a water temperature sensor and a water quality sensor, and the air humidity sensor, the atmospheric pressure sensor, the water temperature sensor and the water quality sensor are all connected with the ARM processor through the peripheral circuit. The ARM processor is in bidirectional wireless connection with a cloud server, and sample data are arranged in the cloud server. According to the method, the dissolved oxygen content value can be obtained by inputting characteristic parameters closely related to the dissolved oxygen by using the soft measurement model of the dissolved oxygen content trained and learned by using the sample data. Compared with the prior art, online detection of the dissolved oxygen content can be achieved, the operation method for detecting the dissolved oxygen content is simplified, meanwhile, manpower and cost needed by detection are reduced, and the detection requirements of some low-cost fields for the dissolved oxygen content can be met.

Description

technical field [0001] The invention relates to an online detection device and method for dissolved oxygen content, belonging to the technical field of dissolved oxygen detection. Background technique [0002] The growth of fish and other aquatic products is closely related to dissolved oxygen. If the dissolved oxygen content in water is low, the fish will have poor appetite or anorexia, low digestion and absorption rate after eating, and slow growth rate. High dissolved oxygen in water is not good for fish egg hatching and fry. Take goldfish as an example, which is a relatively rare ornamental fish. Too low dissolved oxygen may lead to the death of goldfish. When dissolved oxygen is too high, goldfish will be excited and swim around continuously, and young fry will die of exhaustion. [0003] At present, the main detection methods of dissolved oxygen content are iodometric method and dissolved oxygen meter method. Iodometric method is a chemical reagent detection method, ...

AI Technical Summary

Problems solved by technology

The iodometric method is a chemical reagent detection method, and its operation steps are relatively complicated, and it is difficult for ordinary people to grasp the essentials for detection

The dissolved oxygen meter detection method is to combine the special sensor and the display instrument to measure the dissolved oxygen content, but the electrodes of the special sensor need to use gold and silver as materials, so the price of the dissolved oxygen meter is relatively expensive and cannot be applied In the detection of dissolved oxygen content in some low-cost fields, such as the detection of dissolved oxygen content in fish tank water

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