Unlock instant, AI-driven research and patent intelligence for your innovation.

Embedded fiber optic gyroscope Ethernet interface

A technology of fiber optic gyroscope and network interface, which is applied in the field of embedded Ethernet interface to achieve the effect of small amount of information, large amount of information, and simple and reliable interface

Inactive Publication Date: 2016-04-20
HARBIN MIMI RICE IND TECH CO LTD
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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

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
  • Embedded fiber optic gyroscope Ethernet interface
  • Embedded fiber optic gyroscope Ethernet interface
  • Embedded fiber optic gyroscope Ethernet interface

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Combine figure 1 , figure 1 It is the principle structure diagram of the system of the present invention; the LPC1758 of the Cortex-M3 series of hardware system of the present invention is used as a microprocessor, using the built-in Ethernet module on the LPC1758 chip, and the Ethernet controller realizes the function of the data link layer in the system. The Ethernet module includes: a main register. Registers that can be recognized by software, including internal data processing, access the Ethernet module through the advanced high-performance bus AHB. The main register and MAC are connected to the sending and receiving data channels. The DMA is connected to the AHB interface module. The Ethernet module provides the AHB main connection mode, which allows access to the internal SRAM of the chip to read the status word described, and the Ethernet module to read and write data into the buffer.

Embodiment 2

[0021] Combine figure 2 , figure 2 Initialize the workflow for EMAC. After the entire circuit is powered on and reset, the Ethernet software driver needs to initialize the Ethernet module. In initialization, figure 2 The detailed process of MAC initialization is described in detail.

[0022] The software mainly does the following work:

[0023] A. Reset and enable MAC built-in modules, initialize MAC control registers MAC1, MAC2;

[0024] B. Select RMII mode;

[0025] C. Through the GPIO simulation physical layer interface chip reset;

[0026] D. Confirmed link status and physical address;

[0027] E. Confirmation of working mode;

[0028] F. Set MAC storage address;

[0029] G. Configure the direct memory access DMA (direct memory access) module for sending and receiving. With the support of the microprocessor, DMA reads or stores data frames from the memory, as far as possible, it does not need to interrupt for each frame;

[0030] H. Set to receive the exact match of broa...

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 discloses an embedded fiber optic gyroscope Ethernet interface, comprising a microprocessor, a physical chip and an upper computer; the microprocessor, the physical chip and the upper computer are sequentially connected; the microprocessor is LPC1758; the physical chip is DP83848; the LPC1758 is equipped with an Ethernet module; the LPC1758 of the Cortex-M3 series of the hardware system of the invention is taken as the microprocessor; the Ethernet module on the LPC1758 is used; an Ethernet controller realizes the function of a data link layer; the Ethernet module comprises a main resister; a software identifiable register comprises internal data processing and accesses to the Ethernet module through an advanced high performance bus AHB; the main register and an MAC are connected to a data sending and receiving channel; an DMA is connected to an AHB interface module; the Ethernet module provides a main connection mode to the AHB; the status words read and described by an SRAM in a chip is allowed to be accessed; read and write data are written in the Ethernet module in a buffer.

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...

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
IPC IPC(8): H04L12/02H04B10/25
CPCH04L12/02H04B10/25
Inventor 黄东梅
Owner HARBIN MIMI RICE IND TECH CO LTD