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

A high-speed and high-precision light curtain detection device based on fpga and fpaa

A detection device and high-precision technology, which is applied in the field of light curtain system, can solve the problems of slow detection speed and achieve the effects of convenient upgrade, fast system response speed and high data processing speed

Active Publication Date: 2015-12-23
金湖县综合检验检测中心
View PDF7 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method uses a single-chip microcomputer as the control core, the detection speed is slow, and the response time needs to be more than 100ms

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
  • A high-speed and high-precision light curtain detection device based on fpga and fpaa
  • A high-speed and high-precision light curtain detection device based on fpga and fpaa
  • A high-speed and high-precision light curtain detection device based on fpga and fpaa

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0049] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0050] A high-speed and high-precision light curtain detection device based on FPGA and FPAA. In this device, FPGA is described by VHDL in the Quartus integrated development environment. It consists of clock frequency division module, synchronization pulse / data generation module, position detection module, edge detection module, etc. FPAA designs signal conditioning circuits such as variable gain operational amplifiers and comparators in the AnadigmDesigner2 integrated development environment.

[0051] The overall operation of the device is as follows figure 1 As shown, the transmitter drives an infrared tube to emit a beam of infrared rays at regular intervals along the length direction, generating a carrier infrared array, and the receiver arranges the same number of photocells at the same interval. When working, first a transmitter sends out a light pulse...

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 a high-speed and high precision light curtain detection device based on an FPGA and an FPAA. The device comprises a light curtain emitter and a light curtain receiver, wherein infrared transmitting tubes are arranged on the light curtain emitter; receiving photocells are arranged on the light curtain receiver; the infrared transmitting tubes, as well as the receiving photocells, are distributed in double rows and staggered in a plane; and a system core of the light curtain emitter and the light curtain receiver is based on two types (FPGA / FPAA) of super-large-scale digital / analog integrated circuits, that is, by means of a site reconfigurable characteristic of the FPAA and a parallel processing characteristic of the FPGA, the FPAA preprocesses a light envelope signal, and then the FPGA performs real-time in-place detection and edge detection on an object. With the adoption of the technical scheme, the high-speed and high precision light curtain detection device has the advantages as follows: the data processing speed and the system response speed are high, interference resistance is high, and the upgrade is convenient; the device can be applied to various industrial severe environments, in particular to a deformed steel bar production line of a bar production factory in the metallurgical industry; and in-place detection and size measurement performed on tiny objects moving at high speeds can be realized.

Description

technical field [0001] The invention relates to a light curtain system for realizing in-position detection and size measurement of tiny, high-speed moving objects, and belongs to the field of optical computing equipment. Background technique [0002] The light curtain is a special through-beam photoelectric sensor, which includes two parts: the transmitter and the receiver. The transmitter drives an infrared tube to emit a beam of infrared rays at regular intervals along the length direction, generating a carrier infrared array, and the receiver arranges the same number of photocells at the same interval. When working, first a transmitter sends out a light pulse and the corresponding receiver searches for the pulse at the same time. When it is found, it completes the scanning of one channel, and then turns to the next channel until all the scanning is completed. After a period of scanning is completed, the system records which channels are clear and which channels are block...

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 Patents(China)
IPC IPC(8): G01B11/00
Inventor 徐强庄燕滨杨晓云时翔
Owner 金湖县综合检验检测中心
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