Underwater sludge measuring method, device and system thereof

The invention relates to an underwater sludge measuring method, a device thereof and a system, and the system comprises an unmanned ship which travels on a river channel; a double-sonar module arranged on the unmanned ship, wherein the double-sonar module is used for collecting water depth data; a GPS module arranged on the unmanned ship, wherein the GPS module is used for measuring underwater position data, and the underwater position data comprises longitude and latitude; and a central processing unit connected with the double-sonar module and the GPS module, and the central processing unit draws a three-dimensional landform map according to the water depth data and the position data. The automatic measurement of the sludge depth is realized through the unmanned ship, the manpower is saved, the efficiency is high, and the measurement error is small. 本发明涉及一种水下淤泥测量方法、装置及系统，包括无人船，其行驶在河道上；双声呐模块，其设置在无人船上，所述双声呐用于采集水深数据；GPS模块，其设置在无人船上，所述GPS模块用于测量水下位置数据，所述水下位置数据包括经度和纬度；中央处理器，其与双声呐模块和GPS模块连接，所述中央处理器根据水深数据和位置数据绘制三维地貌