Portable Automatic Calibrator

Abstract

A portable automatic checking instrument comprises a water storage container, a master control circuit board, a direct current motor, a micro metering pump and a PC. The PC is connected with the master control circuit board, the master control circuit board is connected with the direct current motor, the direct current motor is connected with the micro metering pump, and a water inlet of the micro metering pump is connected with the water storage container. According to the portable automatic checking instrument, the whole checking process from water inflow, water draining, rainfall calculation and data analysis to verification result output can be performed automatically according to rainfall intensity and the total rainfall set by users. The whole checking process is completely controlled through programs to be performed automatically, manual intervention is not needed, and compared with a traditional manual measuring cup using method, rated accuracy is also greatly improved.

Description

technical field [0001] The invention relates to a portable automatic calibrating instrument, which is used for calibrating a tipping bucket type rain sensor. Background technique [0002] In the water regime monitoring and reporting system, the tipping bucket rain sensor is widely used in the telemetry station to collect water and rain data and send it to the central station through the channel of the telemetry station, which is analyzed and evaluated by the software system of the central station to provide decision-making basis for operation managers . The accuracy of these original rainwater regime data is crucial to the correctness of decision-making. At present, most of the telemetry stations of the water regime monitoring and reporting system use tipping bucket rainfall sensors. Since the telemetering stations are installed in the field, affected by some external conditions such as temperature changes and dust, the measurement error of the tipping bucket rainfall senso...

AI Technical Summary

Problems solved by technology

The second is to use liquid adder products, which can complete the automatic water inlet and drainage functions according to the set rain intensity and total rainfall, but does not include the functions of rainfall counting, data analysis, and verification result output

[0004] There are some disadvantages and deficiencies in the above two verification methods.

Method 1 has the following disadvantages and deficiencies: a) Manual operation is complicated, time-consuming, and manpower-intensive

At the same time, there are errors in manual water intake and readings, and the accuracy is poor; b) The speed before and after artificial water injection is inconsistent, the length of water injection time is unstable, and the intensity of rain cannot be simulated, and the intensity of rain is uncontrollable

Method 2 has the following disadvantages and deficiencies: a), at present, the power consumption of the dosing device products on the market is generally too large, and AC power supply is required, and most of the telemetry stations are installed in the field, without AC power supply conditions; b), currently , the liquid adder products on the market are large in size, heavy in weight, and inconvenient to carry; c), in addition, the existing liquid adder products have non-uniform drainage, and do not include functions such as rainfall counting, data analysis, and verification result output and printing, and software functions Incomplete

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