Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Navigation computer of optical fiber gyro strapdown system based on OMAP

A technology of navigation computer and fiber optic gyroscope, applied in the field of navigation computer, can solve the problem of low efficiency of navigation solution, and achieve the effects of good function, improved efficiency, and reduced size and power consumption

Inactive Publication Date: 2013-09-25
HARBIN ENG UNIV
View PDF8 Cites 11 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problem of low navigation solution efficiency of the current strapdown system navigation computer. The present invention provides a navigation computer based on an OMAP-based fiber optic gyro strapdown 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 more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Navigation computer of optical fiber gyro strapdown system based on OMAP
  • Navigation computer of optical fiber gyro strapdown system based on OMAP
  • Navigation computer of optical fiber gyro strapdown system based on OMAP

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach 1

[0019] Specific implementation mode one: combine figure 1 Describe this embodiment, the navigation computer of the optical fiber gyroscope strapdown system based on OMAP described in this embodiment,

[0020] It includes a data acquisition module 1, an external storage module 2, an external communication module 3, a human-computer interaction module 4, and a navigation solution and control module 5;

[0021] The three-way gyro signal and the three-way accelerometer signal output end of the data acquisition module 1 are connected with the three-way gyro signal and the three-way accelerometer signal input end of the navigation solution and control module 5, and the storage signal input and output ends of the external storage module 2 It is connected with the storage signal input and output terminals of the navigation solution and control module 5, and the communication signal input and output terminals of the external communication module 3 are connected with the navigation solu...

specific Embodiment approach 2

[0034] Specific implementation mode two: combination figure 2 Describe this embodiment, this embodiment is the further limitation of the navigation computer of the optical fiber gyroscope strapdown system based on OMAP described in specific embodiment one, described external storage module 2 comprises SD card circuit, EEPROM circuit, NAND Flash circuit and SDRAM circuit;

[0035] The OMAP-L137 processor is connected with the SD card circuit through the I2C interface,

[0036] The OMAP-L137 processor is connected to the EEPROM circuit through the MMC / SD interface,

[0037] The OMAP-L137 processor is connected to the NAND Flash circuit through the EMIFA interface,

[0038] OMAP-L137 processor is connected with SDRAM circuit through EMIFB interface.

[0039]The EMIFA interface expands a NAND Flash chip K9F1G08UOM, which expands 128MB of non-volatile storage space for the processor, which is used to store program codes necessary for the system, such as embedded Linux kernel, f...

specific Embodiment approach 3

[0043] Specific implementation mode three: combination figure 2 Describe this embodiment, this embodiment is the further limitation to the navigation computer of the optical fiber gyroscope strapdown system based on OMAP described in specific embodiment one, described external communication module 3 comprises first chip MAX232, Ethernet controller, JTAG Interface circuit and the second chip MAX232;

[0044] The OMAP-L137 processor is connected to the communication signal input and output terminals of the first chip MAX232 through the UART1 interface;

[0045] The OMAP-L137 processor is connected to the communication signal input and output terminals of the Ethernet controller through the EMAC interface;

[0046] The OMAP-L137 processor is connected with the communication signal input and output terminals of the second chip MAX232 through the UART2 interface.

[0047] The EMAC interface is connected with the Ethernet controller KSZ8893M, and the extended 10Mbps / 100Mbps Ether...

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

No PUM Login to View More

Abstract

The invention provides a navigation computer of an optical fiber gyro strapdown system based on OMAP, which relates to the navigation computer of a strapdown system. The invention intends to solve the problem of low navigation calculating efficiency of the navigation computer of a current strapdown system. Three-way gyro signal and three-way accelerometer signal output terminals of a data acquisition module of the navigation computer are connected with three-way gyro signal and there-way accelerometer signal input terminals of a navigation calculating and controlling module, storage signal input and output terminals of an external storage module are connected with storage signal input and output terminals of the navigation calculating and controlling module, and transmission signal input and output terminals of an external transmission module are connected with transmission signal input and output terminals of the navigation calculating and controlling module; interaction signal input and output terminals of a man-machine interaction module are connected with interaction signal input and output terminals of the navigation calculating and controlling module; and the navigation calculating and controlling module are implemented by an OMAP-L137 processor. The navigation computer of an optical fiber gyro strapdown system based on OMAP is suitable for the optical fiber gyro strapdown system.

Description

technical field [0001] The invention relates to a navigation computer of a strapdown system, in particular to a navigation computer of an OMAP-based optical fiber gyroscope strapdown system. Background technique [0002] OMAP (Open Multimedia Application Platform, Open Multimedia Application Platform) is an application processor platform architecture launched by TI (Texas Instruments, Texas Instruments). This heterogeneous dual-core processor architecture enables OMAP to integrate the characteristics of DSP and ARM (Advanced RISC Microprocessor, Advanced Reduced Instruction Set Microprocessor) technologies, and fully develops the DSP core in real-time high-precision fixed-floating point data processing. The specialties and the advantages of the ARM core in system management and multi-task scheduling. This excellent performance fully meets the requirements of the fiber optic gyro strapdown inertial navigation system for the CPU core of the digital hardware platform. [0003...

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
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G01C21/20G01C21/16
Inventor 高伟郭善强周广涛王国臣时贵敏夏秀玮王罡于强
Owner HARBIN ENG UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com