关键词: 交通工程；点包容性检测；射线法；越界；监控；工程船

Abstract: In the crowded channel, there is a high risk of collision between the construction engineering ship and the sailing ship. The navigable waters management department will limit the work of the engineering vessel during the peak period of navigation vessels. In order to find the possible construction engineering ships in the channel during the traffic control period in time, detecting the relationship between the ship position of the construction ship and the traffic control area is one of the reasonable and effective ways. In the process of system monitoring, each update of the system required real-time data acquisition, decoding, loading and other operations, which consumed relatively fixed time. Therefore, improving the operation efficiency of the detection algorithm was an effective way to optimize the performance of the monitoring system. Therefore, the operation efficiency of ray method was improved by rotating the region model to obtain the best inspection angle and optimize the judgment conditions of ray method. Research results show that the optimized ray method has higher operation efficiency and stability, and its operation efficiency is improved by about 35.51% compared with the traditional ray method. Compared with the ray method of vertical setting ray, its operation efficiency is improved by 25.68% and is more stable. When the acquisition and decoding time of ship position message cannot be reduced, the efficiency and stability of the improved algorithm can help the monitoring system complete the cross-boundary detection task of ship position within the specified time.

Key words: traffic engineering; point inclusive detection; ray method; cross boundary; monitoring; engineeri