Fixed-point suspended ice thickness and water level integrated continuous monitoring device

Abstract

The invention relates to an ice thickness and water level integrated continuous monitoring device, and belongs to the technical field of hydrological monitoring. The monitoring device is composed of alightning arrester, a wind power generation device, a triangular steel tower, a solar power generation device, a mounting base, an energy storage battery, a rotary arm, an air coupling radar sensor (internally comprising a transmitter, a receiver and the like), an integrated control box (internally comprising a wind-solar complementary controller, a remote telemetering switch, a GPS module and a4G data transmission module) and the like. After installation and connection are completed, a remote computer starts each control module through GSM; relevant parameters are sent to the radar sensor through the 4G module; meanwhile, a radar graph with a GPS time label is received on the basis of the 4G module; and according to two-way time t1, in air and two-way time delta t, in an ice cover, of radar waves, recorded by the radar graph, the elevation H1 of the upper surface or the free water surface of the ice cover and the elevation H2 of the lower surface of the ice cover are automatically calculated by using formulae (5) and (6).

Description

technical field [0001] The invention belongs to the technical field of hydrological monitoring in the water conservancy industry, in particular to an integrated remote continuous monitoring device for ice thickness and water level. Background technique [0002] Ice thickness refers to the vertical distance from the upper surface of the ice layer to the lower surface of the ice layer after the river channel freezes to form an ice sheet in winter. Rivers and lakes in northern my country tend to freeze to form ice covers in winter, such as the Heilongjiang River, Songhua River, and the Ningmeng section of the Yellow River. [0003] Ice thickness monitoring is generally done by means of ice drills and ice rulers to monitor the average ice thickness and maximum ice thickness (in centimeters), especially the ice thickness at special terrains and locations, such as hydrological survey sections, river bends Departments, river-related buildings, etc. However, the biggest disadvanta...

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Problems solved by technology

However, the biggest disadvantage of using this technology to monitor ice thickness is that manual drilling of ice holes is required, which is time-consuming, laborious, and has a low degree of automation. It cannot be continuously monitored and threatens the safety of personnel, especially in thinner ice sheets and unstable ice sheets formed by ice plugs. ice thickness monitoring

[0004] The existing technology of thermal resistance monitoring ice thickness is an automatic monitoring technology that uses temperature sensors to monitor the temperature gradient of the ice layer to calculate the thickness of the ice layer. This technology needs to bury the temperature sensor in advance, which is labor-intensive and can only monitor stable ice sheets. It is not conducive to the continuous monitoring of the whole cycle of ice thickness generation and disappearance and the integrated and continuous monitoring of ice thickness and water level, and it is also not conducive to the continuous monitoring of ice thickness at the same location for many years

[0005] Existing water level monitoring technologies mostly use water gauges or 26GHz radar water level gauges, which can only monitor water level changes remotely). And the change process of the subglacial water level is not conducive to the continuous monitoring of the multi-element hydrology of the northern rivers and lakes in the whole cycle.

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