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Investigative studies of embedded assembly line automation system with dual rfid platform / Samihah Abdullah

Investigative studies of embedded assembly line automation system with dual rfid platform_ Samihah Abdullah_E3_2018_MYMY
Kelemahan sistem inventori kawalan dan ketinggalan zaman telah meningkatkan kerumitan pengurusan barisan pengeluaran kilang, terutamanya oleh peningkatan jualan dan permintaan dalam industri. Sistem yang tidak terurus di dalam barisan pemasangan menyebabkan masalah ketidakcekapan dalam menjejaki kelantangan produk. Objektif penyelidikan ini adalah untuk membangunkan reka bentuk baru seni bina RFID yang dibenamkan (pasif dan sistem aktif) ke dalam satu sistem untuk mengesan dan memantau proses penghantaran produk di barisan pemasangan di industri. Gabungan baru RFID berasaskan 2.4 GHz ZigBee yang beroperasi di platform rangkaian sensor tanpa wayar dicadangkan sebagai penyelesaian kepada masalah pengurusan produk. Sementara itu, sistem yang dicadangkan melibatkan reka bentuk perkakasan dan perisian yang dibenamkan dengan pembaca RFID pasif di Ultra High Frequency (UHF). Keputusan dari eksperimen yang dijalankan menunjukkan bahawa sistem terbenam iaitu Passive and Active RFID (PAR) menghasilkan prestasi keseluruhan yang lebih baik berbanding sistem RFID (PR) pasif yang berdiri sendiri. Ujian jarak dalaman diukur dari jarak 0 hingga 60 m. Pengukuran yang diperolehi pada jarak 1 m dan 60 m dari rangkaian penghantaran adalah -33 dB dan -51 dB masing-masing. Ia juga diperhatikan bahawa sistem terbenam mempunyai nilai kekuatan isyarat yang lebih baik 7.84% berbanding sistem kendiri pada 60 m. Untuk tahap kuasa tertinggi, iaitu tahap 4 (10 dBm) didapati hanya 0.02 dB kehilangan isyarat dan berlaku 99.8% kepada nilai teori bagi sistem PAR. Nilai-nilai throughput untuk tertanam adalah antara 12 kbps hingga 29 kbps untuk 17 bait data setiap paket. Dalam ujian latensi, sistem terbenam PAR lebih baik dan oleh itu, kelewatan lebih rendah 10.9%, 40.6% dan 74.7% sehingga 3 tag berbanding dengan sistem yang berdiri sendiri. Kajian eksperimen menggunakan Design of Experiment (DOE) juga dibangunkan menggunakan analisis data faktorial dan statistik untuk mengesahkan kelayakan sistem yang dicadangkan untuk digunakan dalam persekitaran dan keperluan perindustrian. Analisis faktor mengenai kesan pada kelajuan penghantar, orientasi produk, orientasi tag, jenis tag, jarak linier dan jenis bahan produk telah dikaji dalam eksperimen DOE untuk garis panduan kepada industri. Peratusan pengesanan produk yang berjaya menunjukkan ramalan yang sangat tinggi pada 97.8%. Model kehilangan laluan yang dicadangkan juga menyediakan anggaran jarak tanpa wayar dan bilangan talian pemasangan yang diperlukan untuk mewujudkan sistem pengurusan produk yang cekap. Dari model kehilangan laluan pada jarak 10 m nilai RSSI untuk persekitaran dalaman NLOS barisan pemasangan memberikan -72 dBm. _______________________________________________________________________ The lack of control and outdated inventory system have increased the management complexity of factory production lines, especially by the increase of sales and demand in the industry. An unmanageable system in the assembly line leads to inefficiency problems in tracking the volume of the product. The objective of this research is to develop a new design of embedded dual RFID architecture (passive and active systems) into a single system to track and monitor the product delivery process at the assembly lines in the industries. A new combination of 2.4 GHz ZigBee-based RFID operating in wireless sensor network platform is proposed as the solution to the product management problem. Meanwhile, the proposed system involved hardware and software designs which were embedded with the passive RFID reader at Ultra High Frequency (UHF). Results from the experiments conducted showed that the embedded system namely Passive and Active RFID (PAR) produced better overall performance compared to the standalone which Passive RFID (PR) system. The indoor range test was measured from 0 up to 60 m distance. The measurements obtained at 1 m and 60 m of transmission range are -33 dB and -51 dB respectively. It was also observed that embedded system has better signal strength value 7.84 % compared to the standalone system at 60 m. For the highest power level, which is level 4 (10 dBm) it is found that only 0.02 dB of signal loss occurred and matches 99.8 % to the theoretical value for PAR system. The throughput values for the embedded are between 12 kbps to 29 kbps for 17 bytes of data per packet. In the latency test, the embedded PAR system has better and therefore lower delay of 10.9 %, 40.6 % and 74.7 % for up to 3 tags compared to the standalone system. Experimental studies using Design of Experiment (DOE) were also developed using factorial and statistical data analysis to validate the eligibility of the proposed system to be applied in industrial environment and requirements. The factorial analysis on the effects on the conveyor speed, product orientation, tag orientation, type of tags, linear distance and type of product materials had been studied in DOE experiments for guidelines to the industry. The percentage of successful product detection indicates a very high prediction at 97.8 %. The proposed path loss model also provides the estimation of wireless distance and number of assembly lines required for establishing an efficient product management system. From the path loss model at distance 10 m the RSSI value for the NLOS indoor environment of assembly line gave -72 dBm.
Contributor(s):
Samihah Abdullah - Author
Primary Item Type:
Thesis
Identifiers:
Accession Number : 875008900
Language:
English
Subject Keywords:
RSSI; RFID; unmanageable
Sponsor - Description:
Pusat Pengajian Kejuruteraan Elektrik & Elektronik -
First presented to the public:
3/1/2018
Original Publication Date:
9/22/2020
Previously Published By:
Universiti Sains Malaysia
Place Of Publication:
School of Electrical & Electronic Engineering
Citation:
Extents:
Number of Pages - 326
License Grantor / Date Granted:
  / ( View License )
Date Deposited
2020-09-22 14:43:44.228
Submitter:
Mohamed Yunus Yusof

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Investigative studies of embedded assembly line automation system with dual rfid platform / Samihah Abdullah1 2020-09-22 14:43:44.228