A self-reference sextant

A technology of sextant and reference, which is applied in the field of navigation measurement, can solve the problems of long positioning time, low positioning accuracy, and limited positioning timing, and achieve the effects of improving positioning accuracy, improving automation, and expanding positioning timing
CN106017405BActive Publication Date: 2019-02-19四川汉星航通科技有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
四川汉星航通科技有限公司
Publication Date
2019-02-19

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Abstract

The invention discloses a self-reference sextant. The self-reference sextant comprises a mechanical sextant, a movable mirror tilt angle sensor, a fixed mirror tilt angle sensor, an information processing system, a display unit, a communication interface, a host computer application system, a control system and a power supply system. The movable mirror tilt angle sensor is used for sensing a tilt angle of the mirror face of a movable mirror of the mechanical sextant, the fixed mirror tilt angle sensor is used for sensing a tilt angle of the mirror face of a fixed mirror of the mechanical sextant, the information processing system collects tilt angle information from the two tilt angle sensors in real time and processes the collected information according to a control instruction from the control system, the display unit dynamically displays the processing results of the observed information, the host computer application system exchanges information with an automatic angle measurement integrated device through a communication interface and calculates results and the power supply system provides power for the whole self-reference sextant. The self-reference sextant does not influence the original use of a navigation sextant, is independent of water-sky line observation and greatly improves positioning opportunity, positioning precision and an automation degree.
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Description

Technical field

[0001] The invention relates to the technical field of navigation measurement, in particular to a self-reference sextant. Background technique

[0002] At present, despite the continuous development of modern navigation technology, due to its independence and high reliability, the marine sextant has been used as one of the bottom-guarantee means for naval and ship navigation, and there is no better equipment to replace it. However, traditional marine sextants have the following shortcomings in use: observations rely on water antennas, and positioning can only be observed within a short period of time in the morning light and dim shadows, and positioning opportunities are severely limited. Once an emergency occurs, it is difficult to use the sextant. Autonomous navigation performance; long positioning time (observation time is measured separately, observation data is manually recorded, observation results are manually drawn), and the observation ship position canno...

Claims

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