Live synchronous detection and system applied to water color remote sensing

Abstract

The invention provides a live synchronous detection and system applied to water color remote sensing. The method comprises the steps of carrying spectrum collection and analysis equipment and other water body data acquisition and monitoring equipment on an unmanned boat; constructing a ground control base station, and building data transmission with the unmanned boat, for performing satellite positioning navigation, route planning or real-time display of the working condition of the unmanned boat; and setting handheld remote control equipment, used for remotely and artificially controlling thesailing attitude of the unmanned boat, and using the unmanned boat to monitor a water area to be detected. According to the method and system provided by the invention, in application environments such as inland rivers or lakes, the special test equipment can be carried to examine, research and analyze the quality of a water body in an artificial remote control or autonomous sailing mode, the performance is stable and reliable, and the application range is wide.

Description

technical field [0001] The invention relates to the technical field of water area monitoring systems, in particular to an on-site synchronous detection method and system for water color remote sensing. technical background [0002] With the increasingly prominent problems of lake ecological environment, there is an urgent need to change the routine detection methods of lakes and use satellite remote sensing technology to detect the dynamic water environment of lake water bodies. Remote sensing technology has the characteristics of fast, large-scale and periodicity, which can make up for the shortcomings of conventional timing and fixed-point measurement, save a lot of manpower, material resources and gifts, and has incomparable advantages in conventional lake water detection. It has become a dynamic monitoring of water environment. Early warning of cyanobacteria spray is one of the indispensable means of forecasting. The primary goal of lake water color remote sensing is to...

AI Technical Summary

Problems solved by technology

[0003] At present, the measurement of water areas often relies on manual boating to enter the water area to collect water samples and then go to the shore for analysis and testing. This method is extremely inefficient and has large human errors in data measurement.

At the same time, the dangerous location of the water in the polluted area makes it difficult to manually detect the water quality. In the shallow water area of ​​the lake, there are many manual labor and it is impossible to drive a boat in for water sample collection.

[0004] The method of manual measurement requires at least four people to collect sample point data by boat, which greatly increases the labor cost of data collection

When water body observation is carried out in polluted water areas, manual monitoring is difficult and dangerous, which can easily affect the health of field personnel. For example, when water body observation is carried out in water bodies where schistosomiasis is frequent, since there is no schistosomiasis vaccine, it can only be done in the field Go to the hospital for physical examination after the experiment

At the same time, in the process of data collection, due to the differences in the understanding and implementation of the operating specifications by each person, the way of manual operation will produce relatively large human errors

In principle, the influence of manual measurement on the sky does not have a good observation method or a good method to eliminate the influence of sky light. There is a measurement error in the measurement principle, and this error in the measurement principle will affect the measurement result. have a greater impact

Due to the large hull of the boat, the hull will block a large part of the incident light, which will reduce the amount of water-leaving radiation and cause a large system error. During the voyage, there will be a large disturbance of the water body, which will affect the original state of the water body and lead to deviations in the measurement results.

The measurement specification of manual measurement requires three sets of spectral data collection at the same observation point, but the three sets of data cannot be satisfied on the water surface. The water body measured at the same point

And this measurement process takes a long time. If the sunshine changes a lot, the measured data is basically unavailable

The measurement efficiency is not high, and the time required for the measurement is about 10-15min / site. This measurement efficiency greatly increases the burden of the field work of the scientific research personnel. Every time they go out to work, they stay on the ship for a whole day

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