Water discharge pipeline water quality automatic sampling method and device

Abstract

The invention discloses a water discharge pipeline water quality automatic sampling. The water discharge pipeline water quality automatic sampling comprises a water quality monitoring center and a plurality of water sampling nodes, wherein the water quality monitoring center comprises a total controller as well as a first data processing unit and a local server which are connected with the total controller; each water quality sampling node comprises a sampling control box, a background controller and a second data processing unit; the sampling control box comprises a multi-mode communication adaptor, a power supply, a GPS positioner and a single chip microcomputer; a detection unit is provided; and the detection unit comprises an eddy-current sensor, a water sample collecting module and awater quality monitoring module. The water quality sampling nodes and the sampling control boxes are distributed by dividing areas, and information is subjected to block acquisition and block processing, so that sampling can be conducted rapidly, the sampled information is not in disorder, accurate positioning can be conducted when a component is maintained and changed, the water samples can be collected by four modes of collecting for many times and mixing the samples, sampling at fixed time, performing trigger sampling and performing network sampling, the collection modes are diversified, and the practicability is higher.

Description

technical field [0001] The invention relates to the field of water quality sampling and detection, in particular to an automatic water quality sampling method and device for drainage pipes. Background technique [0002] As we all know, due to many reasons such as limited space, miniaturization and integration of drainage pipes, it is difficult to implement water quality collection and testing. However, with the development of society, the requirements for sewage discharge are becoming more and more stringent. Establishing an intelligent monitoring sewage detection system It is more and more urgent, but there is no efficient and convenient system that can quickly and accurately detect the water quality of the drain. [0003] At present, the water quality monitoring method of the drainage pipeline is firstly that the staff carry the monitoring instrument, and insert the instrument probe from the wellhead into the drainage pipeline during monitoring. This method is not only inc...

AI Technical Summary

Problems solved by technology

However, the drainage process of the drainage pipeline lasts for a short period of time, the water volume changes greatly, and the water flow velocity changes drastically. When the water flow peaks, the entire pipeline section can be filled and the flow velocity is very fast. However, there may be no water in the pipeline for most of the time. Simply relying on regular sampling monitoring, It is difficult to ensure that the regular sampling time is completely consistent with the pipeline drainage time, so good and reliable monitoring results cannot be achieved

In addition, the setting of timing sampling frequency is basically based on experience at present. Each node in a system adopts the same frequency. Some nodes may have too high sampling frequency and cause unnecessary power consumption, resulting in battery damage. It is easy to be exhausted, and it is very inconvenient to update the battery of the drainage pipeline node, and the sampling frequency of some nodes is too low, which cannot well reflect the depth change of the water quality at the node, and has not reached the optimization in terms of power consumption and sampling effect

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