Optimized flow rate based automatic tidal bore arrival detection method

Abstract

The invention relates to an optimized flow rate based automatic tidal bore arrival detection method. The flow rate data cannot be screened in the prior art, the data redundancy causes the decline of the sampling and transmission speed, and the accuracy of the automatic tidal bore detection is affected. According to the optimized flow rate based automatic tidal bore arrival detection method, firstly, receiving all the data collected by radar in every minute, sequentially determining whether the flow rate data is invalid, namely, whether a flow rate value is zero, removing invalid data, and storing valid data; secondly, sorting the initially screened data; then removing 20% of large data and 20% of small data from the sorted data, and averaging the valid data in the middle 60% of the data; finally, transmitting the processed data to a telemetry terminal, wherein the data shows the flow rate value of the Qiantang River in this minute. The optimized flow rate based automatic tidal bore arrival detection method can effectively solve the data redundancy of the terminal, and greatly reduces the load of data transmission and the amount of the data storage of a database end, thereby ensuring the smooth of channels and reducing the amount of data processing of telemetry terminal devices.

Description

technical field [0001] The invention belongs to the technical field of automation, and relates to an optimization algorithm for automatically detecting the arrival of tidal currents based on tidal current velocity data, which can be used for monitoring and real-time forecasting of tidal currents in rivers. Background technique [0002] The estuary of the Qiantang River at Hangzhou Bay is in the shape of a trumpet mouth. The widest part of the estuary is 100 kilometers, and it narrows from the outside to the inside of the mouth. The straight-line distance to Haining is only over a hundred kilometers. When the sea tide comes, a large amount of tidal water flows into the mouth of the Qiantang River. With the shrinkage of both sides of the river, the river bed rises rapidly, the original tidal head is broken, and the tidal water accumulates rapidly. Accompanied by the obstruction and accumulation of the Qiantang River itself, the water level of the Qiantang River is further prom...

AI Technical Summary

Problems solved by technology

However, the common method of using radar to obtain current velocity to judge the arrival of tidal surge still has its limitations.

The existing technology has no screening ability for flow rate data, and judges tide surges for all data, and has poor anti-interference ability to errors. Data redundancy causes a decrease in sampling and transmission speed. Accuracy of automatic tidal surge detection

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