7 results about "Navigational aid" patented technology

This application relates to a steel-hulled marker vessel, belonging to the field of navigational aid technology. It includes a hull, a cable, an anchor, a guide clamp, and a towing assembly. The cable is mounted on the hull, the anchor is mounted on the cable, the guide clamp is mounted on the hull and used to scrape away debris from the cable during retraction, and the towing assembly is mounted on the hull and used to wind up the cable. This application eliminates the need for manual cleaning of debris from the cable, improving the time-consuming, labor-intensive, and unsafe process of cleaning debris from the cable of a marker vessel.

The present invention relates to a beacon for an aid to navigation, the beacon being capable of providing beacon light having a vertically extended light distribution by enabling light dispersed upwardly or downwardly among light irradiated in the lateral direction from light sources to be refracted in the lateral direction with a low slope by means of an upper reflective member and a lower reflective member, thereby being easily identified from a long distance, considering the number or size of the light sources.

This invention belongs to the field of navigational aid technology, specifically relating to an anti-collision navigational aid or buoy, comprising: a float body with a fender and an elastic buffer; a frame with a first and second support plate, wherein a solar panel is mounted on the first support plate and a signal indicator light is mounted on the second support plate; and a buffer mechanism including fasteners connected to an anti-collision ring via buffer links; wherein the buffer links have multi-level buffer zones, and the anti-collision ring includes a rubber bladder with an aluminum alloy frame layer on its outer side, and a polyethylene material layer on the outer side of the aluminum alloy frame layer, the polyethylene material layer being coated with a thin elastic reflective coating. This invention, through the inclusion of a buffer mechanism and reflective plates, effectively reduces the probability of the navigational aid being struck or the extent of damage after a collision.

A navigation-assisted system for wirelessly controlling more than one hand-held surgical instrument is provided. The system includes a hand-held surgical instrument including an instrument processor and a control system configured to transmit a broadcast signal including a pairing identifier and a control signal including a control identifier wirelessly to the hand-held surgical instrument. The instrument processor is configured to receive the broadcast signal and the control signal, determine whether the control identifier corresponds to the pairing identifier; and control a parameter of the hand-held surgical instrument in response to determining that the control identifier corresponds to the pairing identifier.

An operating method of a power-aware smart navigational aid operating system is disclosed. The operating method is an operating method of a power-aware smart navigational aid operating system including service blocks implemented through a microservice architecture and independently operated in a container environment. The operating method comprises the steps in which: an operating module determines an operating mode of the power-aware smart navigational aid operating system according to a power supply state; and the operating module selects service blocks to be controlled from among the service blocks in the determined operating mode.

The invention discloses an unmanned ship shore-based surveying and mapping algorithm and system based on Beidou navigation, belongs to the technical field of unmanned ships, and aims to solve the technical problem that an unmanned ship cannot meet operation requirements in a complex water area environment in the prior art. According to the unmanned ship shore-based surveying and mapping algorithm and system based on Beidou navigation, based on Beidou / GPS dual-mode positioning, RTK real-time differential positioning is adopted, and the positioning precision is smaller than or equal to 2 cm; in combination with inertial navigation (INS) assistance, ensuring that the course deviation is less than 1 degree / h in a lost state; establishing an autonomous navigation decision-making model in a water surface dynamic environment, wherein the autonomous navigation decision-making model comprises a path planning module, an obstacle detection and avoidance module, a task execution module and a homeward voyage decision-making module; and dynamic obstacle recognition is supported by using an AI obstacle avoidance algorithm. The unmanned ship shore-based surveying and mapping algorithm and system based on Beidou navigation have the advantages of high-precision positioning, strong environment perception and obstacle avoidance capability, intelligent and autonomous decision making and adaptability to operation in unfamiliar water areas.

The invention discloses a marine radar target information acquisition method based on geometric correction and an improved YOLOv11 model, systematic innovation is carried out in the aspects of preprocessing and geometric correction, a model structure and a loss function, data enhancement, coordinate conversion and the like, and particularly, linear scale conversion and polar coordinate conversion parameters are pre-established in the preprocessing stage; geometric correction is advanced before target detection, so that the model training efficiency can be improved, and the coordinate conversion operation in the reasoning stage can be simplified; and meanwhile, a coordinate attention mechanism and a decoupling detection head are introduced, so that the perception capability of the model on long-strip-shaped and small targets is remarkably improved. Comprehensive test results show that the method of the invention significantly reduces the missed alarm rate and improves the detection precision, is suitable for being deployed in a marine radar system with limited resources, and is used for real-time target identification and navigation assistance.