LabVIEW Based Real-time Color Measurement System

Colorimetry is of paramount importance to the agricultural industry. Colorimetry refers to the processing of agricultural products for consumer needs from a marketing point of view, and therefore the agricultural industry spends a lot of money and time classifying each product. In the past, agricultural professionals had to use program codes that are difficult to learn, and even the most basic image analysis for agricultural product classification required mastering different program libraries. Today, the LabVIEW platform offers a flexible, fast, easy-to-learn, and complete image analysis infrastructure with various useful modules. For this reason, in this study, a method analysis for color perception with a simple USB webcam and software developed for real-time color analysis on the LabVIEW platform is presented and its success in the basic color analysis is tried to be revealed. The basic application developed for this purpose in LabVIEW v2019 using NI Vision Development Module v19 and NI IMAQ v19 modules. The basic fact that is the LabVIEW application is the idea that LabVIEW can only be analyzed with expensive IEEE 1394, but it should be known that these analyzes can be done with USB webcams. For this purpose, the application includes a USB webcam driver that can be stacked seamlessly. USB Webcam and colorimeter measurement-based results of ƔR factors for each of RGB color channels are 1.161232, 0.506287, 0.432229; ƔG factors for each of RGB color channels are 0.519619, 1.025383, 1.201444; at last ƔB factors for each of RGB color channels are 0.600362, 0.714016, 1.413406, respectively.

ANALISIS KINERJA ISCSI TARGET PADA WIRELESS LAN MEMAKAI STANDAR LIO

Semakin banyaknya kebutuhan data center maupun laboratorium komputer di Indonesia dipengaruhi oleh semakin banyaknya pengguna yang memanfaatkan komputer baik untuk bisnis maupun pendidikan. Salah satu kebutuhan utama yang tidak bisa dilepaskan dari pemakaian komputer adalah tempat penyimpanan baik berupa USB Flash Disk, HD Eksternal, HD Internal sampai HD untuk kebutuhan skala besar untuk komputer server yang berada di data center, laboratorium atau jaringan komputer. Ruang penyimpanan data atau data storage semakin berkembang dengan munculnya teknologi komputer jaringan yang memunculkan alternatif data storage berupa DAS, NAS, FC, FcoE dan iSCSI. iSCSI menggunakan standard TCP/IP protocol over Ethernet untuk menyediakan penyimpanan berbasis block. Saat ini ada 2 jenis multiprotocol SCSI Target utama di industri yaitu LIO dan COMSTAR yang menggantikan teknologi sebelumnya yaitu iET, SCST dan STGT. LIO (linux-iscsi.org) merupakan standard open source iSCSI Target untuk berbagi ruang penyimpanan di Linux. LIO mendukung storage fabrics, yaitu Fibre Channel (QLogic), FCoE, iEEE 1394, iSCSI, iSER (Mellanox InfiniBand), SRP (Mellanox InfiniBand), USB, vHost, dan lain-lain.

Design and Implementation of IEEE 1394 Signaling Rate Converter

This paper mainly expounds the design and implementation of IEEE 1394 signaling rate converter, and emphatically describes the system structure design, basic hardware design, and function realization of IEEE 1394 signaling rate converter. IEEE 1394 signaling rate converter mainly realizes the function of signaling rate conversion in legacy mode, signaling rate conversion in Beta mode, mode change between legacy and Beta, and 1394 bus relay.

Research on On-line Detection and Data Processing Technology of Welding Seam for Bellow

In order to improve the welding quality and welding speed of irregular bellows, according to the characteristic of welding seam of bellows, an automatic and on-line detection technology is proposed in welding technique. The infrared laser sensor is used for measuring with non-contact and real-time detection of welded joint center, the position of welding seam is transfered by the IEEE-1394(Fire Wire). After data preprocessing, the coordinates of feature point are extracted, be storaged and forecasted, then sent to the control system, the moving of welding gun is controlled along track scanning. According to the accuracy analysis of on-line detection system of bellows, the technology of tracking measurement is stable and reliable, and it is effective for improving measuring accuracy and efficiency.