Silt monitoring instrument and silt monitoring system

Abstract

The invention provides a silt monitoring instrument and a silt monitoring system, and relates to the technical field of hydrologic monitoring. The silt monitoring instrument comprises an information acquisition device, a processor and a monitoring instrument body; the information acquisition device is arranged on the monitoring instrument body; the process is connected with the information acquisition device; the information acquisition device acquires pressure information and temperature information of water flow of the monitoring instrument body at the target monitoring point position of a river and transmits the pressure information and the temperature information to the processor; and the processor acquires sand content information at the target monitoring point position of the river according to the above information, the water flow depth (the vertical distance from the monitoring point to the water surface) information and the flow velocity information which are acquired in advance as well as a preset sand content deduction model. The silt monitoring instrument can realize real-time on-line monitoring of the water pressure information and the water temperature information, acquires the final sand content data through the process, has high measuring precision, and is simple in structure, convenient to use and low in cost.

Description

technical field [0001] The invention relates to the technical field of hydrological monitoring, in particular to a sediment monitor and a sediment monitoring system. Background technique [0002] The Yellow River is a world-renowned river with a lot of sediment, and the task of sediment testing is very heavy. Various scientific research institutions have never stopped studying the instruments for monitoring sediment. Since the 1950s and 1960s, hydrologists and relevant domestic scientific research institutes have developed many sediment testing instruments, such as isotopic, infrared, laser, ultrasonic and other sand measuring instruments. After the reform and opening up, they also tried to introduce some advanced sediment testing instruments from abroad. Sand testing physical instruments, spent a lot of financial and manpower but did not achieve satisfactory results. Entering the 21st century, in order to develop and utilize the water resources of the Yellow River, maintai...

AI Technical Summary

Problems solved by technology

In particular, the sand measuring instrument developed by using infrared, laser, ultrasonic and other wave principles has a more significant impact of particle size and a small range, which cannot meet the needs of the Yellow River sediment monitoring production task

The sensors of vibrating sand measuring instruments in the United States, the United Kingdom and other countries are placed on the boat without entering the water, and the muddy water is sucked up by water pumps and pipelines to measure the sand content. It is difficult to locate and measure, and the representativeness of sand samples is poor, so it is not suitable for application in natural rivers.

Although some units have developed vibrating sand measuring instruments, due to the strict requirements on water flow conditions, the sand inlets and vibrating pipes are prone to sedimentation and blockage, and the data jumps unstable, so it is difficult to popularize and apply.

[0004] Up to now, the hydrological stations of the Yellow River still adopt the method of field sampling with horizontal samplers and laboratory measurement and monitoring of suspended sediment content. This method of sediment monitoring is labor-intensive and dangerous. It takes a long time to realize real-time online monitoring, which is not conducive to real-time data display and transmission, etc.

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