Research on Improved Range of Passive Radio Frequency Identification Tag by Taking Advantage of Energy-Harvesting and Efficient E-Class Oscillator

2013 ◽  
Vol 340 ◽  
pp. 493-496
Author(s):  
Gang Ye

Using energy-harvesting technology can make the work scope of passive radio frequency identification tag to achieve the maximum .The study put forward to collecting light from the solar cell share tag antenna area, that provides the power source except from the reader receive to electromagnetic power ,which to activate the label circuit. In order to make solar cell to the influence of the tag antenna to minimum ,so optimize it with electromagnetic simulation on its position .The collected dc power could convert into the radio frequency with the efficient E-class oscillator , as well as it could flow into the radio frequency identification tag terminal with the aid of the proper designed coupled circuit .The oscillation frequency is selected on the principle of not affecting the operation of label back scattering .The presented oscillator is showed in the simulations .The E-class oscillator is used together with other forms of collection technology ,such as thermoelectric collect machine.

Sensors ◽  
2019 ◽  
Vol 19 (24) ◽  
pp. 5418 ◽  
Author(s):  
Jumin Zhao ◽  
Xiaojuan Liu ◽  
Dengao Li

Computational radio frequency identification (CRFID) sensors are able to transfer potentially large amounts of data to the reader in the radio frequency range. However, the existing EPC C1G2 protocol is inefficient when there are abundant critical and emergency data to be transmitted and cannot adapt to changing energy-harvesting and channel conditions. In this paper, we propose a fast and reliable method for burst data transmission by fragmenting large data packets into blocks and we introduce a burst transmission mechanism to optimize the EPC C1G2 communication procedure for burst transmission when there are critical and emergency data to be transmitted. In addition, we utilize erasure codes to reduce Acknowledgement (ACK) delay and to improve system reliability. Our results show that our proposed scheme significantly outperforms the current fixed frame length approach and the dynamic frame length and charging time adaptation scheme (DFCA) and that the goodput is close to the theoretically optimal value under different energy-harvesting and channel conditions.


2020 ◽  
Vol 1 (1) ◽  
pp. 285-292
Author(s):  
Arief Andarwan

ABSTRAK Proses pengangkutan dan pencampuran batubara di PT Adaro Indonesia terbilang cukup unik, menggunakan sistem ‘blending berjalan”, proses pencampuran dilakukan dengan mengatur waktu kedatangan alat pengangkut batubara di terminal fasiltas pemrosesan batubara dan pengisian tongkang agar tiba sesuai dengan waktu yang direncanakan. Untuk menunjang proses optimasi agar menghasilkan kualitas pencampuran yang on spec dan on time dibutuhkan sistem monitoring material, method dan machine yang mumpuni. Teknologi Radio Frequency Identification (RFID) dipilih karena mampu menghasilkan komunikasi data yang cepat. Komponen utama RFID adalah alat pembaca (reader) dan alat penanda (tagger). Alat pembaca dirakit secara elektronik dan beroperasi dengan memanfaatkan sumber energi panas matahari konversi dari solar cell dan ditempatkan di setiap titik strategis di jalur pengangkutan. Alat tagger ditempatkan pada semua alat pengangkut batubara (trailer). Sistem software dan database dibuat secara lokal dan terintegrasi ke pusat database yang terhubung melalui topologi jaringan. Semua transaksi kegiatan pengangkutan mulai dari alat angkut dalam  posisi kosong, pengisian, penimbangan sampai penumpahan atau penumpukan diproses secara online dan real time. Sistem ini juga diintegrasikan dengan aplikasi tracking monitoring yang dibuat dan dikembangkan untuk pemantauan data secara real time oleh semua pihak yang terlibat dalam rantai pasok operasional pengangkutan dan pencampuran batubara.Implementasi integrasi teknologi yang disusun berdasarkan analisa kebutuhan bisnis proses ini memberikan dampak langsung dan tidak langsung. Secara biaya pengadaan dan perawatan, tools ini lebih murah dari produk pasaran yang ditawarkan. Dari segi kualitas menghasilkan peningkatan presisi pencampuran. Sisi operasional juga memberikan penghematan dari proses kerja yang efisien dengan peningkatan produktivitas alat angkut. Tindakan perbaikan yang berkelanjutan dan tepat sasaran dari aktivitas pengangkutan dan pencampuran juga dapat dilakukan karena data evaluasi yang dihasilkan dari integrasi teknologi ini valid dan dapat diandalkan. Kata Kunci : RFID, Coal Hauling, Coal Blending, Hauling Tracking System  ABSTRACT Coal hauling and mixing in PT Adaro Indonesia is fairly unique, using an “on the way mixing” system, the mixing process is operated by setting the arrival time of the coal truck at coal processing and barge loading terminal facility so that truck arrived according to planned time. In order to support the optimization process to produce optimum quality mixing that is on spec and on time, require capable monitoring system of material, method and machine. Radio Frequency Identification (RFID) technology was chosen because it is able to produce fast data communications. The main components of RFID are reader and tagger. The reader is electronically assembled and operated by using thermal energy conversion from solar cell which placed at each strategic point along hauling road. The tagger is placed on every coal truck (trailer). The software and database system is created locally and integrated into central database that connected through network topology. All transaction from hauling activity starting from the trucks at empty position, loading, passing, weighing until dumping are processed online and real time. This system also integrated with tracking monitoring application that is established and developed for real time monitoring by all parties involved in coal supply chain. The implementation of this technology integration that based on business needs analysis has direct and indirect impact. In terms of investment and maintenance costs, these tools are cheaper than commonly product offered in industrial market. From quality aspect results, it gives enhancement of mixing precision. The operational side also provides saving from efficient working process by increasing truck productivity. Continuous and accurate corrective action from coal hauling and blending operation can also be done because data evaluation that generated from this integrated technology are valid and reliable. Keyword: RFID, Coal Hauling, Coal Blending, Hauling Tracking System


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