9 results about "Electronic navigation" patented technology

This application relates to digital twin 3D modeling, specifically to a method and device for constructing a digital twin waterway scene using electronic navigation charts. The method includes: analyzing the historical trend of water depth values ​​at each depth point to determine the inherent terrain feature values ​​of each depth point set at the current time; determining the terrain ruggedness feature value by fitting the last data point in the temporal sequence of the trend components of all depth points in each depth point set at the current time with its fitted value and the fitting error; and determining interpolation feature values ​​by combining the inherent terrain feature values ​​to classify all depth points into critical and non-critical points; and performing interpolation processing on the water depth values ​​of all critical and non-critical points using different interpolation methods respectively. This application solves the problem that a single interpolation method cannot simultaneously ensure the realism and real-time performance of the model construction, thus improving the realism and real-time performance of the digital twin waterway scene model.

This invention relates to a method for determining radio navigation beacons for an aircraft. The method is implemented by an electronic determination device and comprises the following steps: selection of an N-tuple of beacon identifiers, N being greater than or equal to 2, from an estimated position of the aircraft; and provision of the selected N-tuple to an electronic calculation device, for calculating a new estimated position of the aircraft from the N beacons corresponding to the N identifiers of the selected N-tuple.1. During the selection step, the N-tuple is selected from a set of admissible N-tuples, obtained by means of the implementation of an artificial intelligence algorithm, the artificial intelligence algorithm receiving as input the estimated position of the aircraft and providing as output the set of admissible N-tuples.

The invention discloses a hospital dynamic electronic navigation method and system. The method comprises the following steps that: a hospital electronic navigation center acquires destination information, mobile phone information and video information of a patient after the patient agrees; creating a patient walking route on a hospital electronic map according to the destination information of the patient, and pushing the patient walking route to a mobile phone of the patient through a WLAN (Wireless Local Area Network); judging the current area of the patient in real time through a wireless local area network (WLAN); when the current area of the patient is determined, calling a monitoring video of the current area of the patient from a hospital video monitoring network, identifying the patient from the crowd by using the video information of the patient, and determining the facing direction of the patient; according to the facing direction of the patient, the electronic map and the walking route of the patient, the following leftward, rightward, forward or backward walking direction of the patient is determined, and voice information of the determined walking direction is sent to the mobile phone of the patient through the WLAN, so that the patient can adjust the walking direction according to the voice information of leftward, rightward, forward or backward walking.

Embodiments of the present application disclose an electronic navigation map quality detection method and device, the method comprising: obtaining an electronic navigation map to be detected; obtaining a plurality of pose information and corresponding positioning time thereof in a driving process of a vehicle in a scene corresponding to the electronic navigation map; obtaining perception data determined by the vehicle in the driving process, a collection time corresponding to each road image being in a corresponding relationship with the positioning time corresponding to each pose information; for each pose information, determining map semantic data corresponding to the pose information from the electronic navigation map; and for each pose information, determining a quality detection result of the electronic navigation map based on map position information of the map semantic data corresponding to the pose information in the electronic navigation map and / or observation position information of the perception data corresponding to the pose information in the corresponding road image, so as to realize detection of quality problems of the electronic navigation map.

This invention discloses a verifiable cryptographic fusion method for electronic nautical charts and satellite imagery, belonging to the field of marine data processing technology. The method includes: preprocessing and registering S-57 electronic nautical chart data and satellite imagery data; constructing a dynamic tidal buffer analysis region; generating a nearshore waters mask with semantic consistency; constructing Merkle tree commitments for the purified electronic nautical chart features and water index raster; extracting nearshore boundaries and calculating geometric consistency scores; calculating semantic consistency scores based on the nearshore waters mask and depth region reference maps; and finally, weighted fusion of geometric, semantic, and commitment scores to generate a reliable fusion index, which is then classified and evaluated according to a threshold. This invention combines geometric consistency, semantic consistency, and cryptographic integrity verification, enabling quantifiable and verifiable evaluation of the fusion results of multi-source marine geospatial data, providing a standardized technical path for hydrological quality assurance and chart updates.

Method and electronic device for determining radio navigation beacons for an aircraft, computer program, navigation method and associated electronic navigation system. The present invention relates to a method for determining radio navigation beacons (210) for an aircraft. The method (210) is implemented by an electronic determination device and comprises the following steps: selection (230) of an N-tuple of beacon identifiers, N being greater than or equal to 2, from an estimated position of the aircraft; and supplying (240) the selected N-tuple to an electronic computing device, for calculating a new estimated position of the aircraft from the N beacons corresponding to the N identifiers of the selected N-tuple.During the selection step (230), the N-tuple is selected from a set of admissible N-tuples, obtained through the implementation of an artificial intelligence algorithm. The AI ​​algorithm receives the estimated position of the aircraft as input and provides the set of admissible N-tuples as output. See Figure 4 for the abbreviation.

The utility model discloses a multifunctional electronic navigator support, which relates to the technical field of electronic navigators and comprises a base. The bottom of the sliding seat is in sliding connection with the bottom of the inner cavity of the base; the two ends of the threaded rod are rotationally connected with the inner side of the base, the outer side of the threaded rod is in threaded connection with the inner side of the sliding seat, and the threaded rod is used for driving the sliding seat to move; the fixing device is located above the sliding seat, and the fixing device is used for fixing the electronic navigator; the fixing device comprises a connecting plate, the bottom of the connecting plate is fixedly connected with the top of the sliding seat, and the outer side of the connecting plate is rotationally connected with a mounting device; and the top of the suction cup is fixedly connected with the bottom of the base. By arranging the fixing device, the bracket can adjust the position of the electronic navigator according to actual use requirements, and has better flexibility and adaptability.

The invention discloses a ship intelligent driving control system and method based on multi-modal interaction and cloud cooperation and a ship, and belongs to the field of intelligent ships. The system comprises a central processing unit, a multi-mode interaction module, a cloud collaborative battery replacement management module, a graded alarm and intelligent broadcast module, an electronic navigation log module, a multi-source data fusion display module, a digital electronic control integration module and a cloud platform. Wherein the multi-modal interaction module, the cloud collaborative battery replacement management module, the graded alarm and intelligent broadcast module, the electronic navigation log module, the multi-source data fusion display module, the digital electronic control integration module and the cloud platform are respectively connected with the central processing unit, and interaction of control instructions and data is realized through the central processing unit. According to the invention, all-around and integrated intelligent management and control of ship navigation, electromechanics, battery replacement, logs and the like are realized.