A new unmanned surface vehicle (USV) designed for the Chinese market offers an open and low-cost platform to measure water current and direction. Nortek China has integrated Doppler instrumentation on the vehicle to help better meet user requirements for ocean surveying.
The new USV has an IPC (Industrial Personal Computer) as the main operation platform and uses Remote Desktop, a remote-control technique, to communicate with all the instruments installed. This means that the vehicle offers an open and low-cost platform for customers who need to carry out several different tasks at the same time. For example, users can perform hydrology and water quality measurement while simultaneously obtaining water samples. Furthermore, the USV can carry other appropriate instruments, for example for geomorphology.
Nortek China USV used by China University of Geosciences for measuring the current profile and the vehicle’s velocity during drifting. The image shows a deployment in the South China Sea near the city of Zhuhai
The basic exterior dimensions of the vehicle are about 200 cm length, 70 cm width and 40 cm depth. The USV has two propellers that can produce 80 pounds of thrust force. For navigation control, it can be remotely controlled manually, or be programmed to sail automatically by itself. The design of the vehicle can be adjusted according to different requirements from end users.
“The demand for USVs is growing in China now, and China is a great market in itself. With Nortek having launched the Signature VM system here already, we should grasp this opportunity to open the vessel-mounted current measurement market in China,” says Leon Zhang, General Manager of Nortek China.
The survey was carried out using the Signature VM system with a Signature500 ADCP (pictured) as well as an Aquadopp 2 MHz ADCP
The new USV is characterized by good sailing performance and excellent stability. A powerful propeller provides propulsion when needed. IPC control and Remote Desktop help simplify the operation of the vehicle. The vehicle also stands out due to its low cost and easy integration of multiple sensors and instruments.
“This USV platform was built to help users to handle multiple tasks, and to be able to do this at a low cost. Looking ahead to the future, we will develop an automatic and ‘intelligent’, or sophisticated, system to improve the performance of the USV,” says Jack Hu, Technical Manager at Nortek China.
His colleague Nick Ying, a Field Engineer at Nortek China, explains how his team has been able to achieve excellent quality: “Only the best parts and accessories were selected for the vehicle. There is also the possibility of producing tailored design solutions for different customers’ needs,” he explains.