Collection device, system and method for gravel-cobble conveying pressure and conveying audio frequency

Abstract

The invention discloses a collection device, system and method for gravel-cobble conveying pressure and conveying audio frequency. The collection device comprises an upper baffle, a lower baffle and a shield which is arranged between the two baffles and used for preventing the impact of gravels, cobbles and sand-laden water, wherein a cavity is defined by the upper baffle, the lower baffle and the shield; the interior of the cavity is fixedly provided with pickups for collecting the gravel-cobble conveying audio frequency, and multiple strain-type sensors for collecting the gravel-cobble pressure borne by the upper baffle and the lower baffle in the process of conveying the gravels and cobbles, wherein the pickups are fixedly arranged on the upper baffle or the lower baffle, and the strain-type sensors are fixedly arranged between the upper baffle and the lower baffle. The collection system comprises a plurality of collection devices arranged on a river bed, a base station arranged on a shore, and a server in a communication connection with the base station, wherein the collection devices are in a communication connection with the base station. Regardless of a high or low flow speed and a large or small quantity of gravel-cobble conveying, the collection devices and the collection system can monitor the gravel-cobble movement accurately for a long time.

Description

technical field [0001] The invention belongs to the field of channel observation, and in particular relates to a collection device, system and method for transporting pressure and audio of pebbles and gravels. Background technique [0002] After the Three Gorges Reservoir was put into operation, the waterway conditions in the reservoir area have been greatly improved, but it still cannot fully adapt to the current shipping development. According to many years of channel sediment prototype observation and analysis work, it is believed that the shoal in the changing backwater area hinders navigation mainly due to the change of pebbles and gravels. Currently, due to the limitations of observation equipment and observation technology, it is impossible to effectively obtain prototype pebbles and gravel transport. Therefore, the understanding of the law of erosion and deposition of pebble and gravel shoals in the variable backwater area is still unclear. [0003] The existing mas...

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Problems solved by technology

[0006] Aiming at the above-mentioned deficiencies in the prior art, the technical problem to be solved by the present invention is to provide a pebble-gravel device that can accurately monitor the pebble-gravel movement for a long time regardless of whether the water velocity is high or low, and the pebble-gravel transport volume is large or small. Acquisition device, system and method for transmission pressure and transmission audio detection, which solves the problem of inaccurate detection of pebbles and gravels in the case of high-speed water flow or too many pebbles and gravels

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