Multi-Rain Sensor Fusion Method

Abstract

The present invention proposes a method for fusion of rainfall sensors, comprising the following steps: linear error correction, assumed parameters, data collection of rainfall sensors, judging total finger code and total sensor status, calculating and counting hourly rainfall and daily rainfall, and judging the status of rainfall sensors; The present invention can solve the problem of the accuracy of the rainfall end time by adopting the time window method, improve the accuracy of the fusion of the rainy sensor, and carry out segmental linear error correction on the three measured meteorological instantaneous values ​​through the instrument verification parameters, so as to be a rainy sensor The fusion improves the verification environment. The rainfall fusion model has obtained very good optimized data in the verification environment, which meets the requirements of the data fusion index. In practical applications, it can effectively overcome the problems of total error caused by different observation time lengths and drizzle omissions. , and at the same time, the algorithm of the present invention can effectively realize data fusion and optimize output.

Description

technical field [0001] The invention relates to the technical field of data fusion, in particular to a fusion method of a rain sensor. Background technique [0002] The automatic weather stations used in the current surface meteorological observation business can observe a variety of meteorological elements, including wind speed, wind direction, temperature, relative humidity, rainfall, atmospheric pressure, surface temperature, shallow ground temperature, deep ground temperature, evaporation, atmospheric visibility, etc. . All meteorological elements are converted into electrical signals by the unique detection sensor, collected, calculated and processed by the collector, and the instantaneous meteorological value per minute is obtained. However, the uniqueness of the sensor has brought some difficult problems, including the continuity of the observation data cannot be guaranteed, the identification of the abnormal situation of the observation data is difficult, and the st...

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Problems solved by technology

[0004] However, the data fusion of the same sensor is a special field of multi-sensor fusion that domestic meteorological manufacturers have not yet set foot in. The three sensors of the same type connected to automatic climate stations at home and abroad are mutual backups. If one abnormality or failure occurs, it will directly Using the data of another sensor did not realize data fusion and optimize the output, let alone judge the performance change of the sensor through the historical observation trend of the sensor. In terms of maintaining the stability of the sensor performance of the observation project, it is no different from a single sensor.

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