The invention discloses a fixed-depth water sample collection system and sampling method based on a multi-rotor unmanned aerial vehicle in the technical field of fixed-depth water sample collection, and the fixed-depth water sample collection system comprises the multi-rotor unmanned aerial vehicle, a water sample collection cylinder, a connecting rope, a position detection unit, a water surface detection unit and a control unit, the connecting rope is connected between the multi-rotor unmanned aerial vehicle and the water sample collection cylinder; the position detection unit is fixedly installed under the pay-off wheel, arranged on the connecting rope in a sleeving mode and used for detecting angle information and pay-off length information of the connecting rope, and the water surface detection unit is installed at the bottom of the water sample collection barrel and used for detecting water surface position information; the control unit is respectively in electric signal connection with the water surface detection unit and the position detection unit, and the control unit can calculate the position information of the water sample collection cylinder according to the angle information and the pay-off length information and control the lifting of the water sample collection cylinder. The sampling depth of the water sample collecting cylinder can be accurately obtained by calculating the positions of the water sample collecting cylinder twice by utilizing a cosine function, so that the sampling accuracy is ensured.
本发明公开了水样定深采集技术领域的一种基于多旋翼无人机的定深水样采集系统及采样方法,包括多旋翼无人机、水样采集筒、连接绳、位置检测单元、水面检测单元和控制单元,连接绳连接在多旋翼无人机和水样采集筒之间,位置检测单元固定安装在放线轮的正下方并套设在连接绳上,用于检测连接绳的角度信息和放线长度信息,水面检测单元安装在水样采集筒底部,用于检测水面位置信息;控制单元与水面检测单元和位置检测单元分别电信号连接,控制单元能够根据角度信息和放线长度信息计算水样采集筒的位置信息并控制水样采集筒的升降。本发明利用余弦函数,可通过对水样采集筒的两次位置计算,准确得到水样采集筒的采样深度,进而保证采用精确度。
Depth-keeping water sample collection system and sampling method based on multi-rotor unmanned aerial vehicle
一种基于多旋翼无人机的定深水样采集系统及采样方法
2024-12-06
Patent
Electronic Resource
Chinese
IPC: | B64U / B64D Ausrüstung für Flugzeuge , EQUIPMENT FOR FITTING IN OR TO AIRCRAFT / G01B MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS , Messen der Länge, der Dicke oder ähnlicher linearer Abmessungen / G01N Untersuchen oder Analysieren von Stoffen durch Bestimmen ihrer chemischen oder physikalischen Eigenschaften , INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES / G01V Geophysik , GEOPHYSICS |
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