Inertial navigation system for ship
A technology of inertial navigation system and navigation system, applied in radio wave measurement system, satellite radio beacon positioning system, navigation and other directions, can solve problems such as deviation and affecting recursive performance of inertial navigation system, achieve small positioning error and reduce update Not timely, the effect of high measurement accuracy
Inactive Publication Date: 2015-06-10
WUHU HANGFEI SCI & TECH
View PDF5 Cites 3 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
However, the accuracy error and measurement error of the motion sensor will gradually accumulate during the calculation process
After a relatively long period of time, the accumulated error will cause a large deviation between the motion trajectory calculated by the inertial navigation system and the true trajectory of the moving object
In this way, it is bound to affect the recursive performance of the inertial navigation system
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0014] The technical solution of this patent will be further described in detail below in conjunction with specific embodiments.
[0015] see figure 1 , a marine inertial navigation system, including a navigation system and an error correction device, the navigation system includes a microprocessor, a GPS module, a sensor module, a state reset module, a power control module, a storage module, a display module, a voice control module and Communication interface, the error correction device includes a trajectory calculator, an abnormal working state judgment module, an error correction module, a map road network error correction module and a lead lag error correction module, and the GPS module includes a GPS buoy, a GPS receiver and a data control module. In the center, the sensor module includes a gyroscope sensor and a speed pulse sensor, and the trajectory calculator is connected to the microprocessor through an abnormal working state judgment module and an error correction m...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses an inertial navigation system for a ship. The inertial navigation system comprises a navigation system and an error correction device. The navigation system comprises a microprocessor, a GPS module, a sensor module, a state resetting module, a power control module, a storage module, a display module, a voice control module and a communication interface. The error correction device comprises a track arithmetic unit, a working state abnormality judgment module, an error correction module, a map road network error connection module and a lead-lag error connection module. The GPS module comprises a GPS buoy, a GPS receiver and a data control center. The sensor module comprises a gyro sensor and a speed pulse sensor. The inertial navigation system is simple in design, stable in performance, small in positioning error and high in measurement accuracy; the advantages of the GPS navigation system and the advantages of the inertial navigation system are integrated, and accurate navigation information is provided; through the error correction device, map errors caused by delay of map information updating and inaccuracy of surveying and mapping are reduced, the errors of navigation and positioning information are corrected in time, and the accuracy of inertial navigation is greatly improved.
Description
technical field [0001] The invention relates to the technical field of navigation systems, in particular to a marine inertial navigation system. Background technique [0002] With the needs of the world's economic and military development, the development of marine resources, the utilization of marine energy and other modern marine high-tech [0003] The study of science and technology has become one of the main fields of the new technological revolution in the world. The marine positioning and navigation system is the basis of all marine development activities and marine high-tech development. Among them, the marine inertial navigation system is the direction of the development of the marine positioning and navigation system. Various navigation parameters, including the ship's speed, attitude, heading, and longitude, latitude and other data of the location, this kind of autonomy that does not need to use electromagnetic waves or light waves to communicate with external sat...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): G01C21/16G01C25/00G01S19/47
CPCG01C21/203G01C21/165
Inventor 朱倩王宇航查文舒航陈坤邓禹胡鹏飞齐侠琛孙雨诚
Owner WUHU HANGFEI SCI & TECH