What are the core technologies of underwater robots?

A. Intelligent control technology

Intelligent control technology, aimed at improving the autonomy of underwater robots, is the architecture of artificial intelligence technology, various control technology, including integration, equivalent to the human brain and nervous system. The software system is the overall integration and system scheduling of robots, which directly affects the level of intelligence, it involves the selection of basic modules, the relationship between modules, the data (information) and control flow, the communication interface protocol, the management of global information resources and the overall dispatching mechanism.

B. Underwater target detection and identification technology

At present, the underwater robot equipment for underwater target detection and identification is limited to synthetic aperture sonar, frontal sonar and 3D imaging sonar and other hydroacoustic equipment.

Synthetic aperture sonar is a sonar that is used by time-for-space method and small aperture to obtain large aperture sonar, which is very suitable for underwater robots with small scales, which can be used for reconnaissance, detection, high-resolution imaging, large-area topographic geomorphology measurement, etc. Autonomous detection system composed of front-view sonar refers to image acquisition and processing system of front-view sonar, which independently collects and identifies target image information under the management of underwater computer network to achieve target tracking and guidance to underwater vehicles.

Through continuous trial and error, find out the method for feature extraction and matching of underwater target image, and establish several target databases.Especially in the case of fewer pixels in the target image, it can better solve the classification and recognition of several targets.

The detection results of the target can provide the distance and orientation of the target and the robot, which provide the basis for the underwater robot to avoid collision and operation.

3D imaging sonar, used for the identification of underwater targets, is a modular system that is fully digital, programmable, flexible and easy to modify.

It can obtain the shape information of the underwater target and provide a favorable tool for the identification of the underwater target.

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