scholarly journals Feasibility Study of While-drilling Data Transmission Technology Based on Radio Frequency Identification

2015 ◽  
Vol 8 (1) ◽  
pp. 293-296
Author(s):  
Wei-Ning Ni ◽  
Ji-Bo Li ◽  
Shan-Guo Li ◽  
Wei Zhang
Keyword(s):  
Radio Frequency Identification ◽  
Data Transmission ◽  
Electromagnetic Waves ◽  
High Speed ◽  
High Capacity ◽  
Low Frequency ◽  
Rfid Tags ◽  
Frequency Identification ◽  
High Speed Data ◽  
Transmission Speed

Downhole data transmission methods based on mud-pulse and low-frequency electromagnetic waves can’t satisfy the need of large amount and high speed data uploading during drilling. In this paper, a novel data transmission technique based on releasing RFID tags by LWD tools is designed and validated. As the memory and transmission media, RFID tags are pre-mounted tactfully in cavities of the downhole releasing tool which can transmits/write LWD data to these tags. By releasing regularly or irregularly into the annulus fluids, RFID tags can be carried to the surface by mud circulation. To finish data transportation function, LWD data can be read out on the surface. Wireless charging high capacity (1Mbits) RFID tags are designed, which contains microprocessor and memory, to expand the storage capacity of RFID tags. The power supply for microprocessor and memory in the tag is electromagnetic waves from RF Reader/Writer module. The equivalent data transmission speed of this system can be up to 278 bit/s (1 tag/h is assumed), which is more much faster than the traditional mud pulser (<10 bit/s).

scholarly journals Improved Anti-Collision Algorithm for the Application on Intelligent Warehouse

2019 ◽  
Vol 9 (8) ◽  
pp. 1596
Author(s):  
Yishu Qiu ◽  
Yezi Xu ◽  
Lvqing Yang ◽  
Jinsheng Lu ◽  
Dingzhao Li
Keyword(s):  
Radio Frequency Identification ◽  
Data Transmission ◽  
Rfid Tags ◽  
Small Data ◽  
Related Information ◽  
Frequency Identification ◽  
Stable Performance ◽  
Warehouse Operation ◽  
Recognition Efficiency ◽  
New Situation

As an important part of economic development, warehousing logistics also needs to be transformed and upgraded in order to adapt to the development of the new situation. The RFID reader records the related information of the goods to improve the efficiency of warehouse operation by identifying the RFID tags attached to the goods in batches. This paper also proposes an improved group-based anti-collision algorithm (GMQT) to solve the problem of tag collision in the process of Radio Frequency Identification (RFID) identification. The simulation results show that the GMQT algorithm improves the recognition efficiency of the system. The algorithm has the advantages of small data transmission and stable performance; in particular, the recognition efficiency is not affected by the number of tags.

On BFSA Collision Resolution in LF, HF, and UHF RFID Networks

2015 ◽  
Vol 4 (2) ◽  
pp. 44-55
Author(s):  
Varun Bhogal ◽  
Zornitza Genova Prodanoff ◽  
Sanjay P. Ahuja ◽  
Kenneth Martin
Keyword(s):  
Radio Frequency Identification ◽  
High Frequency ◽  
Large Scale ◽  
Low Frequency ◽  
Rfid Tags ◽  
Uhf Rfid ◽  
Ceteris Paribus ◽  
Frequency Identification ◽  
Major Factors ◽  
The Cost

RFID (radio frequency identification) technology has gained popularity in a number of applications. Decreased cost of hardware components along with wide adoption of international RFID standards have led to the rise of this technology. One of the major factors associated with the implementation of RFID infrastructure is the cost of tags. RFID tags operating in the low frequency spectrum are widely used because they are the least expensive, but have a small implementation range. This paper presents an analysis of RFID performance across low frequency (LF), high frequency (HF), and ultra-high frequency (UHF) environments. The authors' evaluation is theoretical, using a passive-tag BFSA based simulation model that assumes 10 to 1,500 tags per reader and is created with OPNET Modeler 17. Ceteris paribus, the authors' results indicate that total census delay is lowest for UHF tags, while network throughput performance of LF tags is highest for large scale implementations of hundreds of tags in reader's range. A statistical analysis has been conducted on the findings for the three different sets.

The Application of LVDS Interface in the Distance High-Speed Data Transmission

2011 ◽  
Vol 341-342 ◽  
pp. 682-684
Author(s):  
Hui Xin Zhang ◽  
Ying Ping Hong ◽  
Kai Li Li
Keyword(s):  
Data Transmission ◽  
High Speed ◽  
Data Communication ◽  
Long Distance ◽  
Twisted Pair ◽  
Status Monitoring ◽  
High Speed Data ◽  
Transmission Speed ◽  
Data Reading ◽  
Speed Data Transmission

Aiming at the LVDS high speed data communication used on long distance, this paper designed the method of data reading and status monitoring of the recorder during the experiment. The transferring cables are twisted-pair, its transferring distance is 100m and the data transmission speed is 12Mbytes/s. With the method introduced in this paper, great deal of time is saved during the data retrieving process. It also increases the efficiency of the experiment, even better, the transmission medium is cheaper, more simply, and easier to be achieved than the optical fiber and coaxial cables.

scholarly journals Design and Implementation of RFID Controller using Verilog HDL

2021 ◽  
Vol 9 (VI) ◽  
pp. 4335-4342
Author(s):  
J. Balakrishna
Keyword(s):  
Access Control ◽  
Radio Frequency Identification ◽  
Low Frequency ◽  
Rfid Tags ◽  
Verilog Hdl ◽  
Identification Number ◽  
System Database ◽  
Automated Technology ◽  
Frequency Identification ◽  
Wireless Application

Manual monitoring consumes more time, man power and shows inaccurate results. So, automation is the solution to cover the problems stated. Barcode and RFID are two different forms of automated technology that are used for reading and collecting data. The RFID (Radio Frequency Identification) technology is a well-known wireless application for traceability, logistics and access control. The RFID controller is constructed in to demonstrate access control through the use of low-frequency RFID tags. These tags contain identification number which is read by the reader, sent to a database where it is compared with stored values. It works on the principle that If the tag’s identification number is in the system database, it gives access. If the data is not in the system database, it doesn’t give access. To implement these various blocks, include RFID transmitter, RFID receiver, Baud clock generator, Database are designed. The RFID Controller is designed using Verilog HDL in Xilinx ISE tool.

Analysis of Inter-Satellite Optical Wireless Communication System

2017 ◽  
Vol 7 (10) ◽  
pp. 10
Author(s):  
Rajbir Singh
Keyword(s):  
Wireless Communication ◽  
Optical Networks ◽  
Data Transmission ◽  
High Speed ◽  
Open Space ◽  
Communication Link ◽  
Optical Wireless Communication ◽  
Optical Wireless ◽  
High Speed Data ◽  
Speed Data Transmission

Optical networks are bandwidth efficient networks are used for long haul communication providing seamless data transfer. For high speed data transmission in open space between different satellites, Inter-satellite Optical wireless communication (IsOWC) is widely used .In this paper we have evaluated the performance of IsOWC communication link for high speed data transmission .The performance of the system is evaluated on the basis of qualitative parameters such as Q-factor and BER using optisystem simulator.

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