TK993 : Factors affecting export of Irans factory industries with emphasis on the type of ownership
Thesis > Central Library of Shahrood University > Electrical Engineering > MSc > 2023
Authors:
Majid Hashemian Bojnord [Author], Mohammadreza Ashraf[Supervisor]
Abstarct: In recent years, with the rapid development of wireless radio communication chip manufacturing technology, wireless communication technology with high data rate and high transmission distance has attracted increasing attention from academia and industry. Due to the limitations of the manufacturing process and the access to the large energy source of applications using wireless radio communication chips, achieving this has made possible the long distance data transmission is always challenging in their design and manufacture. For this reason, the construction of non-integrated wireless radio communication circuits using basic telecommunication and electronic elements on printed circuit boards is a further solution to achieve a wireless radio communication system with a long transmission distance. In this thesis, focusing on the use of wireless radio transmitter and receiver circuits for image transmission in imaging drones and security and surveillance cameras, the design of a wireless radio communication system with the aim of achieving long data transmission distance was presented and built. This system is made of an image transmitter circuit, an image transmitter receiver circuit, and an image receiver and display circuit. All the telecommunication circuits in this system were built using the chips that make up the wireless radio transmitter and receiver circuit blocks, which have the ability to increase the transmitter's telecommunication signal power and the receiver's sensitivity to achieve a long data transmission distance. The feature of receiving the image from one circuit and resending it to the display circuit is considered to further increase the data transmission distance. The built telecommunication circuits transmit a 153.6 Kbyte instant image in approximately 40 seconds with a data transmission bit rate of 5 Kbytes per second at a distance of 5 meters. Each transmitter circuit uses a power supply of 3 watts at the maximum telecommunication signal power of +10dBm. Each receiver circuit with a sensitivity power of -50dBm uses a power supply of 5 watts. These telecommunication transmitter and receiver circuits are the prototype and low specifications of the proposed telecommunication system and their use in the proposed applications should be made more realistic by considering the suggestions and solutions to increase the distance and bit rate in them.  
Keywords:
#Telecommunication transceiver #Image transfer #Data transmission distance #UAV Imaging Systems #Security camera Keeping place: Central Library of Shahrood University
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