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Method for measuring rainfall intensity in real time by using tipping-bucket rain gauge

A tipping bucket rain gauge, real-time measurement technology, applied in the field of computer measurement and control, can solve the problems of short service life, high price, complicated maintenance, etc., and achieve the effect of solving poor accuracy and real-time performance, convenient later maintenance, and high precision

Inactive Publication Date: 2015-04-08
CHANGAN UNIV
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Problems solved by technology

[0004] The purpose of the present invention is to provide a method for real-time measurement of rainfall intensity by using a tipping bucket rain gauge. This method can solve the problems of short service life, high price and complicated maintenance of the existing rain intensity measurement device, and can ensure the accuracy of the measurement results. accuracy and timeliness

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  • Method for measuring rainfall intensity in real time by using tipping-bucket rain gauge
  • Method for measuring rainfall intensity in real time by using tipping-bucket rain gauge
  • Method for measuring rainfall intensity in real time by using tipping-bucket rain gauge

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[0027] The present invention will be further described in detail below in conjunction with the drawings.

[0028] See figure 1 In the present invention, the method for real-time measurement of rainfall intensity using a tipping bucket rain gauge includes the following steps:

[0029] 1) Place the tipping bucket rain gauge in the rainfall measurement area and initialize the system parameters. These parameters include t = t dec = 0, t thd =+∞, E=0, and then start working; where t is the cumulative time of this cycle; t dec Indicates the waiting time for attenuation processing, t thd Indicates the attenuation threshold time; the unit is all seconds;

[0030] 2) Circulately detect whether the tipping bucket is flipped within the time slice T; the size of the time slice T determines the system performance and the quality of the measurement results. The larger the T, the better the real-time and accuracy of the strategy and the greater the system performance expenditure required , T=5~2...

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Abstract

The invention discloses a method for measuring rainfall intensity in real time by using a tipping-bucket rain gauge. The method comprises the following steps: placing the tipping-bucket rain gauge into a rainfall measuring area, initializing a system coefficient, and starting a rainfall intensity measuring system; circularly detecting whether a tipping bucket is overturned or not in a time slice T; if the tipping bucket is overturned, calculating instant rain intensity E by using the overturning time interval t of the tipping bucket, and entering next circulation; otherwise, judging whether t exceeds a maximum value tmax or not; if t exceeds the maximum value, judging that rainfall does not occur, E=0, and entering next circulation; otherwise, judging whether attenuation waiting time tdec exceeds an attenuation time limit t'thd or not, executing rain intensity attenuation processing if the attenuation waiting time tdec exceeds the attenuation time limit t'thd, and entering next circulation. By adopting the method, the problems of poor accuracy and poor instantaneity in calculation of the tipping-bucket rain gauge are solved, and batch application of the tipping-bucket rain gauge to the industries or fields of traffic needing real-time rain intensity measurement is facilitated.

Description

Technical field [0001] The invention belongs to the field of computer measurement and control, and specifically relates to a method for real-time measurement of rainfall intensity by using a tipping bucket rain gauge. Background technique [0002] Rainfall is important meteorological monitoring data for many industries or fields such as agriculture and forestry, water conservancy, hydrology, and mining. It mainly includes rainfall (the depth of the water layer where rainwater accumulates, in millimeters) and rainfall intensity (the rainfall per unit time, in units such as mm / Day, mm / hour, etc.) two measurement indicators. [0003] Real-time rain intensity measurement is an important requirement in many industries or fields such as transportation in recent years. Taking traffic operation management as an example, timely grasp of the rainfall conditions of various road sections is of great significance for the linkage adjustment of road traffic and rapid response to traffic weather...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01W1/14
CPCG01W1/14Y02A90/10
Inventor 张昌利闫茂德温立民朱旭刘卜华王金冕尤谨语陈家蓉王莹史润方孙婷
Owner CHANGAN UNIV
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