Embedded fiber-optic gyroscope Ethernet interface

Abstract

Aiming at the deficiency that a fiber-optic gyroscope cannot perform abundant and remote information transmission in a traditional serial transmission mode, an Ethernet interface on the basis of an embedded system is designed to allow the system to perform remote monitoring and access through a PC and to perform communication and information and data exchange with other embedded systems with network capabilities. A LPC1758 of a hardware system Cortex-M3 series is taken as a microprocessor, and an Ethernet controller realizes a data link layer function in the system through adoption of a built-in Ethernet module on the LPC1758 chip. The Ethernet module comprises a principal register. A register, capable of being identified by software, includes internal data processing and is able to perform access of the Ethernet module through an advanced high-performance bus AHB. The principal register and a MAC are connected with transmission and receiving data channels. A DMA is connected with an AHB interface module. The Ethernet module provides an AHB main connection mode which permits to access the state characters read and described by the SRAM in the chip to read and write in the write-in data into a buffer area.

Description

technical field [0001] The invention relates to an embedded system, in particular to an embedded Ethernet interface. Background technique [0002] Optical systems with no moving parts can detect a unique physical phenomenon of rotation relative to inertial space, now known as the Sagnac effect. Since the first fiber optic gyroscope appeared in 1976, significant progress has been made in the research and development of fiber optic gyroscopes in the following years, and fiber optic gyroscopes will become the most important new gyroscope technology in the 21st century. Compared with traditional electromechanical gyroscopes, fiber optic gyroscopes have the advantages of small size, high precision, short start-up time, wide dynamic range, light weight, low power consumption, all-solid-state, and can be integrated. With the mature production technology of large-scale and low-cost fiber optic gyro, the fiber optic gyro compass will become a new star in ship navigation. [0003] N...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to design an Ethernet interface based on an embedded system for the traditional serial port transmission method of the fiber optic gyro compass, which cannot carry out a large amount of remote information transmission , enabling the system to be remotely monitored and accessed via a PC, and to communicate, exchange information and data with other embedded systems with network capabilities

Images