Discussion on the algorithms of a new siphon rain gauge

摘要

As the persistent rain within a short time may trigger off mud-flows and landslides which cause great losses to lives and properties, the real-time monitoring work of rainfall is very meaningful to the disaster early warning. In order to get the accurate rainfall data timely in the unattended wilderness environment this paper presents a novel siphon rain gauge design based on a strain-type pressure sensor after an integrated consideration of the principles, operation methods, merits and faults of various types of rain gauges This rain gauge not only keeps the advantages of the traditional siphon rain gauge such as low power and not subject to the restrictions of rainfall's intensity, but also ensures the measurement accuracy by a pressure sensor, besides the rainfall in the process of siphon can be compensated by the compensation algorithm. Finally, the algorithm optimized data can be transmitted over long-distance through the GSM module on the data collector, thus its scope of application will be greatly increased.