Video Test-Test Measurement-6-EEWORLD

Design of measuring light curtain for object classification equipment using C51 series single chip microcomputer

Abstract: Firstly, the principle of light curtain height measurement is introduced, a method for realizing height measurement light curtain is given, and the system structure and main performance designed by this method are analyzed. Thus, the interference between adjacent channels is completely solved and the measurement accuracy is improved. ...

Keywords： C51 series single chip microcomputer object classification equipment measurement light curtain

Publish Time：2011-06-03

Realizing real-time acquisition of all-digital images using USB2.0 microcontroller

Abstract: This paper mainly discusses the principle, method and system implementation of real-time acquisition and transmission of high-resolution (640×480 dots or more) and fast (24 frames/s or more) all-digital images using USB2.0 single-chip microcomputer interface technology, as well as the corresponding firmware program design. ...

Keywords： USB2.0 full digital image real-time acquisition

Publish Time：2011-06-03

Design of high-speed image acquisition system based on PEX8311 PCIE bus

Abstract: Aiming at the defect that the traditional PCI bus has low bandwidth and cannot transmit high-speed video signals, a hardware system is designed to use the chip PEX8311 as a PCIExpress bridge chip to collect and transmit the images of the CamLink interface camera. The characteristics and working mode of the PEX8311 chip are introduced, as well as the control of PEX8311 in FPGA using a state machine. The data transmission performance of the system is tested by writing a WDM driver and a host compute...

Keywords： PCIExpress FPGA CameraLink WDM PEX8311

Publish Time：2011-05-30

Video analytics processors meet storage needs for video surveillance

Video surveillance has been widely used in every corner of human living environment. Security cameras are installed in various locations such as personal residences, community streets, office buildings and retail stores. Various development trends require monitoring systems to store more video data for a longer period of time. The number of video surveillance cameras......

Keywords： Video analysis processor video surveillance storage requirements

Publish Time：2011-05-28

Security video image analysis

　　1. Introduction to Intelligent Products The intelligent video system is composed of a video analysis server located at the front end or back end. It analyzes the video images taken by the surveillance camera and can separate the state of people, cars or objects in the image from any background, and identify, analyze and track them....

Keywords： Security Video Image

Publish Time：2011-05-27

Design of 3D Rotational Laser Scanning Measurement System

Abstract: In order to realize the rotational scanning measurement of 3D laser scanners and digitally measure complex 3D cylindrical objects, a CNC turntable that can rotate automatically is added to the ordinary 3D laser scanner to achieve the purpose of rotational measurement. The center axis of the turntable is accurately calibrated by installing a calibration ball on the turntable, and a new calibration method for the center axis of the turntable and the subsequent splicing and processing scheme are obta...

Keywords： Rotational scanning turntable calibration multi-view stitching laser scanner

Publish Time：2011-05-27

Using audio signals to measure the distance between nodes in wireless sensor networks

A wireless sensor network node system that uses audio signals to achieve autonomous measurement of node spacing. The system includes a dsPIC6014A microcontroller, 512 KB SRAM, a 2.4 G band RF transceiver module, an audio transceiver module, and a power management module. The distance between nodes is measured by measuring the time difference between the RF synchronization signal and the audio signal. The node uses multiple measurement data accumulation and averaging and IIR digital filtering technology to i...

Keywords： test

Publish Time：2011-03-04

Analyze the application characteristics and requirements of mobile video surveillance alarm

　　Features of mobile video surveillance: 1. Mobile video surveillance can be remotely monitored anytime and anywhere through mobile phones or computers, and everything is under control! You can use your mobile phone or computer to check the situation of shops and offices. You can use your mobile phone or computer to check the situation of pets, children and the elderly at home. 2. Intelligent security alarm......

Keywords： Mobile video surveillance

Publish Time：2010-12-21

New Imager Solutions for Emerging HMI and MEI Applications

　　Emerging HMI and MEI applications require new imagers with low cost, high volume production characteristics and advanced functions. This article discusses the application and new features of such imagers with Micron's MT9V022 CMOS image sensor. In the past 25 years, image sensors have been mainly used in machine vision......

Keywords： HMI MEI Imager

Publish Time：2010-11-30

Unmanned substation integrated monitoring seamless integration becomes a trend

　　The common problem of unattended systems in the power industry is that users have implemented some video surveillance, dynamic environment monitoring, integrated alarm systems and access control systems in their respective substations, but most of them are implemented step by step and in batches, and each system operates independently. Even each system requires independent management personnel, making it difficult to achieve comprehensive management of multiple systems......

Keywords： Video surveillance unattended substation

Publish Time：2010-09-07

Transmission method and cable layout of elevator video surveillance system

　　As the main means of transporting passengers and goods in high-rise buildings, elevators will be used more and more widely in the future. They are the most common public places, so it is necessary to install surveillance cameras in elevators. In the past, elevator monitoring was to mix video cables with accompanying cables, and then connect the output from the elevator room to the monitoring center. The system architecture was simple. But......

Keywords： Video surveillance cable laying

Publish Time：2010-08-12

A brief discussion on the practical application of twisted pair cables in video surveillance systems

　　1. Overview In the weak current system of modern intelligent buildings, the security system plays a very important role. In traditional design and construction, network wiring and security monitoring wiring are often considered separately. Due to the difference in the media used, people cannot unify them well. However, in the security monitoring of the building......

Keywords： Video surveillance twisted pair

Publish Time：2010-08-12

Research on non-contact measurement method of parison diameter based on image processing

　　1 Introduction Extrusion blow molding is a process for producing plastic containers. The molding of the parison is a very important stage in extrusion blow molding. The parison molding has a great influence on the performance and cost of the blow-molded products. If the size of the parison before blowing can be detected online at this stage, the minimum consumption of raw materials can be used......

Keywords： Image processing non-contact measurement

Publish Time：2010-08-12

Reduce the cost of adopting HDMI1.4/1.4a specifications by choosing test solutions

"As of February 18, 2010, the number of manufacturers adopting HDMI has reached 970, and it is expected to reach 1,000 by the end of this year." Steve Venuti, President of HDMI Licensing LLC, proudly shared with product managers from the electronics industry in Greater China at the HDMI® Technical Tour in Taipei, Shanghai and Shenzhen in early July 2010......

Keywords： HDMI1.4/1.4a Tektronix

Publish Time：2010-08-09

A fast motion estimation algorithm based on H.264 standard

　　Abstract: H. 264 is one of the most important international standards for data compression coding. At the same time, fast motion estimation algorithms have always been a hot topic in video compression research. This paper uses the diamond ten algorithm to solve the problem that some fast estimation algorithms determine the search direction too early, easily fall into the local minimum point, and lose the search accuracy. Based on the original......

Keywords： H.264 motion estimation MPEG-4 DS FSS video coding

Publish Time：2010-06-24

Application of SIMATIC VS 710 vision sensor in the automotive industry

　　This article describes a solution developed by Fuchs Engineering GmbH for checking differential gears in the automotive industry based on SIMATIC VS 710. Fuchs was not only responsible for the engineering services involved in the project, but also for the supply of the entire facility, which was integrated into the......

Keywords： Vision sensor SIMATIC automotive industry Fuchs measurement

Publish Time：2010-04-08

Design of Inertial Measurement Unit System Based on ADISl6355 MEMS

　　Firstly, the principle, composition and application of ADISl6355AMLZ MEMS are introduced. On this basis, a hardware platform is built, and the AT89C513lA microcontroller with built-in USB controller is used as the main controller to control ADISl6355AMLZ and collect and store data. And the data acquisition design of the inertial measurement unit system is carried out. ......

Keywords： Measurement ADI ADISl6355 MEMS inertial measurement unit

Publish Time：2010-04-06

Application of machine vision in online inspection system of cloth production

　　1. Overview of online inspection of cloth production As a high-tech technology that collects and processes information quickly, in real time and accurately, automatic inspection technology has gradually become an indispensable technical tool and means for the informatization of the national economy and the enhancement of competitiveness. On modern production lines, cloth needs to be identified by its color......

Keywords： Machine vision online inspection

Publish Time：2010-03-23

Developing WiseWELDING machine vision system for robotic welding

TIG/GTAW results at the welding node Challenge: Replace manual operation with automatic welding path correction. This solution is produced using high-quality stainless steel processing equipment. It can complete the design, prototype manufacturing, testing and deployment of a complete system that can be used for production within two months. Solution......

Keywords： Machine Vision System WiseWELDING Robotic Welding

Publish Time：2010-03-16

Construction and application of large-size LCD optical measurement system

　　◎Problems in measurement/testing If you want to build an LCD optical measurement system to inspect the panel quality, you will face the following problems: 1. Establish a measurement system that can quickly measure the uniformity of 9, 13, and 25 points on a certain point on the panel, such as Luminance (brightness), CIE (color coordinates), Chromaticity, VIEWANGL ......

Keywords： LCD optical measurement measurement panel

Publish Time：2009-10-11