Hailanxin: Down-to-earth, in-depth cultivation and tempering, to create leading steering control technology

This offshore oil ship was originally a platform guard ship. After being converted into a geophysical exploration ship, due to high-precision control requirements, the requirements for autopilot have become higher. The ship has to tow six sensor arrays through flexible cables about 100 meters long. In order to achieve operational results, the left-right error of the sensor array's center position cannot exceed 10 meters, which is much higher than the track error standard of the automatic steering system. In the actual ship test, due to the complex factors affecting the ship's attitude, flexible cables and water flow, the control effect under automatic navigation needs to be optimized, and the autopilot algorithm must be improved for this working condition. The task was urgent. After receiving the task, the engineers actively boarded the ship to cooperate with optimization and sea trials.

Regarding the ship’s special operating requirements and ship characteristics, Highlands engineers conducted on-site analysis and optimization and adopted advanced adaptive control methods to combat According to the current and sea conditions, the ship's attitude error and water flow disturbance can be identified and corrected in time during operation, ensuring the ship's navigation operation effect and greatly improving the control performance.

Three days of tracking, debugging and testing of actual ships at sea were carried out in the peripheral waters. Under level 5 wind and sea conditions and strong current interference, the heading control accuracy finally reached within 1 degree, and the dynamic The rudder frequency is extremely low, meeting customer requirements. During the long-term automatic navigation, the sensor array trajectory of the geophysical exploration vessel was maintained within a deviation range of plus or minus 10 meters, meeting the operational requirements and winning unanimous recognition from customers. The test results are shown in the figure below:

This support operation once again proved the steering control technology of Highlands. As a listed company in China with the ability to implement "intelligent ships + three-dimensional marine monitoring", Highlander has always adhered to the concept of being a global leader in intelligent navigation, adhered to the development route of high-quality development and premium strategies, and worked hard and hard on the ground. Adhering to the principle of customer first, we will continue to work hard to provide world-class products!

Contribution | Ma Yaping

Editor | Tang Fei

Review | Zhao Xichun