Remote matrix switch control module having RS422 interface

A kind of RS422, -- RS422 technology, applied in the field of remote matrix switch control module, can solve the problems of unable to meet the needs of remote measurement, poor universal applicability, high equipment requirements, etc., achieve flexible matrix structure, reduce debugging difficulty, The effect of a large number of channels

Inactive Publication Date: 2012-02-15
BEIHANG UNIV
View PDF4 Cites 18 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] Most of the existing matrix switch control modules on the market are for local control, and the scale is small, which cannot meet the needs of remote measurement based on thermos

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
  • Remote matrix switch control module having RS422 interface
  • Remote matrix switch control module having RS422 interface
  • Remote matrix switch control module having RS422 interface

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0069] The technical scheme of the present invention will be further described below in conjunction with the drawings.

[0070] The invention takes FPGA and CPLD as the core and combines peripheral logic devices to provide a remote matrix switch control module with RS422 interface.

[0071] Please refer to the attached figure 1 In the present invention, a remote matrix switch control module with RS422 interface includes two hardware sub-modules: RS422 sub-module and matrix switch control sub-module. The RS422 sub-module includes an RS422 isolated communication unit 101, an FPGA protocol encoding unit 102 and a buffer driving unit 103; the matrix switch control sub-module includes a CPLD protocol decoding unit 104, a column signal driving unit 105, a row signal driving unit 106 and a relay array unit 107.

[0072] The RS422 submodule and the matrix switch control submodule communicate through an eight-bit parallel bus. RS422 control instructions are issued by the remote device, the s...

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 relates to a remote matrix switch control module having an RS422 interface. The module comprises two hardware submodules, which are an RS422 submodule and a matrix switch control submodule. Cores of the invention are as follows: a remote control based on an RS422 bus and flexible switching of large-scale matrix switches. The RS422 submodule comprises an RS422 isolation communication unit, an FPGA protocol coding unit and a buffer driving unit. And the matrix switch control submodule is composed of a CPLD protocol decoding unit, a column signal driving unit, a row signal driving unit and a relay array unit. According to the module provided in the invention, performances are stable; reliability is high; besides, the module has an RS422 bus interface and a communication rate can reach 2MB/s; therefore, the module is suitable for general signal switch and route selection and external device control and the like. Moreover, a switching demand on a switching value by traditional testing equipment can be met; meanwhile, the module can be widely applied to remote testing platforms including a temperature cabinet, a vibration table, and a rotary table and the like; and thus, deficiency based on PCI, CPCI and PXI bus interface equipment can be made up.

Description

technical field [0001] The invention relates to a remote matrix switch control module with RS422 interface. This module adopts RS422 bus for remote control, and switches the measured signal through the matrix switch. The RS422 bus provides a reliable solution for high-speed remote control, and also overcomes the dependence on traditional PCI, PXI, and CPCI interface devices. Using the matrix switch control module, any input and output can be connected individually or in combination, which greatly expands the flexibility of testing. The invention belongs to the field of computer aided testing and automatic testing. Background technique [0002] As the name implies, the matrix switch refers to a switch product with a structure of row (Row) and column (Column) cross arrangement. Its characteristic is that each node (CrossPoint) is connected to a row / column. Signal routing can be achieved. The use of matrix switches is very flexible and convenient. It is the product with the...

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): G05B19/418
CPCY02P90/02
Inventor 周强郭毅刘亚斌
Owner BEIHANG UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap