3 results about "BeiDou Navigation Satellite System" patented technology

This invention relates to the field of grounding wire management technology and discloses a monitoring and management system for intelligent grounding wires based on the BeiDou Navigation Satellite System. The system includes installing a wireless sensor on the top of a grounding operation rod to construct a set of grounding wire status parameters; using a decimeter-level single-frequency RTK matrix to construct a set of grounding wire positioning parameters; preprocessing the data; and then numbering and storing the preprocessed grounding wire status parameter set and grounding wire positioning parameter set. The system calculates status consistency, positioning matching, temporal correlation, and lifecycle; verifies the operation process and data validity based on the calculation results; and issues early warning signals based on the verification results. This system achieves intelligent monitoring, programmed control, and information-based early warning throughout the entire grounding wire usage process, replacing traditional manual operation and verification, avoiding human negligence and non-standard operation problems, eliminating hidden dangers such as missed removal, missed installation, and incorrect sequence, and ensuring personal and equipment safety.

This invention discloses a method for predicting the maneuvering motions of hydrogen fuel cell-powered ships based on multi-source data fusion, relating to the field of intelligent ship navigation. The method collects geodetic coordinate system position and heading data from the BeiDou Navigation Satellite System and ship hull coordinate system acceleration data from the Inertial Measurement Unit (IMU). After differential and integral preprocessing, a neural network model is built. A fusion-type loss function is constructed based on the transformation relationship between the ship hull coordinate system and the geodetic coordinate system. The model is trained using a backpropagation algorithm and can also be extended to fuse data from multiple sensors such as GPS. This invention fully leverages the complementary advantages of multiple sensor sources, effectively compensating for the inherent deficiencies of single-sensor data, significantly improving the accuracy and robustness of ship maneuvering motion prediction, and providing reliable technical support for intelligent navigation decision-making and safety assurance of hydrogen fuel cell-powered ships.

This invention discloses a method for reconstructing the three-dimensional curve and calculating the sag of transmission conductors based on BeiDou navigation satellite system. Specifically, it relates to the field of spatial measurement and state perception technology for transmission lines. This method addresses the problems in existing conductor sag measurements where the three-dimensional spatial form is easily simplified to a planar relationship, leading to insufficient representation of the true trajectory of the conductor in complex channels, difficulty in removing local mixed-in points, difficulty in stably restoring continuous curves, and deviation between the calculated sag and the actual clearance position. By acquiring the coordinates of BeiDou observation points and the coordinates of the two end anchor points, a span coordinate system is established to form spatial contour data. Local observation segments are divided and the conductor body point sequence of the target span is identified. Then, a set of retained observation points is constructed, the three-dimensional curve of the target conductor is reconstructed, and the vertical difference at each longitudinal position is calculated based on the connection of the anchor points to complete the sag calculation of the target span conductor.