Multifunctional rain gauge for automatically recording start and end times of rainfall and rainfall process

Abstract

The invention discloses a multifunctional rain gauge for automatically recording start and end times of rainfall and a rainfall process. The multifunctional rain gauge comprises a rain gauge body partI, and power supply II, communication, record and control parts are divided into two main parts. According to the rain gauge body part I, an external body frame is formed by a rain gauge body rack, arain gauge base and a rain gauge bottom plate rack, and a rain collecting funnel, a rain collecting measuring room, a liquid level sensor, a drainage channel and a solenoid valve are arranged inside.The power supply II, communication, record and control parts are connected to a circuit board and a paperless recorder through a communication module by a PC end (with built-in host computer software). The device is internally provided with a solenoid valve and a liquid level sensor, combined with the circuit board and PC end host computer software, while a traditional rainfall record is satisfied, the start and end times of rainfall, a rainfall duration and a rainfall process can be precisely and flexibly recorded, and the multifunctional rain gauge has a wide application field and can be used in a hydrological station, surface water, groundwater, and other units with high requirements of the start and end times of the rainfall, the rainfall duration and the rainfall process.

Description

technical field [0001] Technical field: A multifunctional rain gauge that accurately records the start and end time of rainfall, especially a multifunctional rain gauge that automatically records the start and end time of rainfall, rainfall process and rainfall intensity; it is mainly used in hydrological observation stations, surface water, groundwater and other scientific research The unit has relatively high requirements for the start and end time of rainfall, the duration of rainfall, and the rainfall process. Background technique [0002] Background technology: rainfall is closely related to the production and life of human beings. Excessive rainfall will cause increased river flow, rising water levels in lakes and reservoirs and other safety hazards and flood disasters; excessive rainfall will also cause groundwater levels to rise and spring flow to change. Large, etc., and the rise of the groundwater level will cause water gushing in foundation pits, aquifer cross-lay...

AI Technical Summary

Problems solved by technology

[0002] Background technology: rainfall is closely related to the production and life of human beings. Excessive rainfall will cause increased river flow, rising water levels in lakes and reservoirs and other safety hazards and flood disasters; excessive rainfall will also cause groundwater levels to rise and spring flow to change. Large, etc., and the rise of the groundwater level will cause water gushing in foundation pits, aquifer cross-layer pollution between pure groundwater and polluted groundwater and other vicious events; due to the existence of the above problems, the monitoring accuracy in the rainfall process should be improved, and the start and end time of rainfall and the Accurate correspondence between the rainfall process and the relevant flow and water level is the key to solving the problem; at present, for the measurement of rainfall, relevant units at home and abroad mainly use simple rain gauges and self-recording rain gauge equipment, and use the rainfall per unit area to calculate regional rainfall The amount of rainfall is divided into 24-hour or 48-hour rainfall intensity levels. This method obviously lacks accurate records of the start and end time of rainfall and the rainfall process. However, due to the inaccurate records of the start and end time of rainfall and the rainfall process, surface water and groundwater flow, water level, etc. The corresponding relationship with rainfall is not accurate enough, which affects the accuracy of problem solving. Therefore, it is necessary to develop and use rain gauges that automatically and accurately record the start and end time of rainfall and the rainfall process.

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