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Laser wave measurement device and method under shallow water environment

A laser and shallow water technology, applied in measuring devices, open-air water source survey, surveying and navigation, etc., can solve the problems of not being able to obtain real-time wave conditions on the water surface, reducing wave measurement efficiency, navigation, environmental protection and breeding disadvantages, etc., to achieve convenient disassembly and Assembling, less labor consumption, improved stability and operability

Pending Publication Date: 2019-01-15
NANJING INST OF GEOGRAPHY & LIMNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This will reduce the efficiency of wave measurement, and the wave conditions on the water surface cannot be obtained in real time, which is not good for navigation, environmental protection and breeding, etc.

Method used

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  • Laser wave measurement device and method under shallow water environment
  • Laser wave measurement device and method under shallow water environment
  • Laser wave measurement device and method under shallow water environment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] Such as Figure 1~4 The shown laser wave measuring device in shallow water environment includes a slider 5, a box container 3, a floating body 6, a laser sensor 4, a data collector 11, a photovoltaic power generation device and a processor; the photovoltaic power generation device includes a photovoltaic panel 1, a solar control 9 and battery 8, the processor is a computer including a processor, including a mouse 19, a keyboard 20 and a display 21.

[0049] Such as figure 2 As shown, the box container 3 is vertically fixed on the slide bar 5, the inside of the box container 3 is provided with a partition plate, and the box container 3 is divided into two layers, the solar controller 9, the storage battery 8 and the terminal 10 The composed energy supply device, data collector 11 and communication module 12 are installed on the upper layer, and the laser sensor 4 is placed on the lower layer; The lower surface protrudes for laser emission and reception. A single door...

Embodiment 2

[0055] This embodiment specifically illustrates the method for measuring waves using the device described in Embodiment 1.

[0056] Including the following steps:

[0057] 1) The slide bar 5 is vertically installed in shallow water, the laser sensor 4 is located above the water surface, and the floating body 6 is floating on the water meter; without any hydrodynamic interference, the floating body 6 floating on the water surface is 2m away from the laser sensor.

[0058] 2) The laser sensor 4 vertically emits visible laser beams of different frequencies from 10 to 20 Hz vertically, and takes 20 minutes for a single measurement, and then sleeps for 10 minutes;

[0059] After the laser sensor 4 receives the scattered laser light returned by the floating body 6, it compares the received signal with the reference signal, and calculates the distance value corresponding to the corresponding phase shift through the microprocessor.

[0060] The laser sensor 4 sends the collected 20-m...

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Abstract

The invention relates to a laser wave measurement device and method under shallow water environment. The laser wave measurement device comprises a sliding rod, a box container, a laser sensor, a datacollector and a processor. The fluctuation of a water meter is measured by utilizing a laser beam, the sliding rod and a floating body in a matched mode, wherein the laser beam is small in emitting angle, large in distance and high in precision. The data collector is used for carrying out local backup, remote wireless transmission and storage on original data measured by the laser sensor, and finally the processor is used for data processing so as to estimate feature parameters such as the wave height, period and frequency spectrum. The laser wave measurement device and method can fully meet the requirements of an indoor water tank experiment and outdoor long-time continuous real-time wave monitoring, and the problems of harsh application conditions, low measuring precision, poor real-timeperformance and the like of existing devices are solved.

Description

technical field [0001] The invention belongs to the field of hydrology, water resources and environmental monitoring, and specifically relates to a laser wave measuring device and method in a shallow water environment, which is suitable for the measurement of high-frequency and low-energy surface fluctuations, wireless data transmission and automatic calculation of wave elements in a shallow water environment. Background technique [0002] Wave is one of the forms of water body operation. It is a relatively complex fluctuation. There are many factors that cause water body fluctuations, such as wind, ships, density differences, atmospheric pressure changes, celestial tidal forces, and earthquakes. There are many fluctuation phenomena in nature. The result of the synergistic effect of these factors. Wave measurement in natural water bodies is not only an important basis for shoreline protection, engineering structure design and ship engineering, but also has great significance...

Claims

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Application Information

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IPC IPC(8): G01C13/00
CPCG01C13/002
Inventor 吴挺峰王汗许王辰
Owner NANJING INST OF GEOGRAPHY & LIMNOLOGY