Discipline: Technology and Engineering
Subcategory: Electrical Engineering
Room: Exhibit Hall
Marcus C. Allen - Norfolk State University
Co-Author(s): Marlin D. Prince, Norfolk State University, Norfolk, Virginia; Javionn J. Ramsey, Norfolk State University, Norfolk, Virginia; Chevel G. Samuels, Norfolk State University, Norfolk, Virginia; Jarvis K. Turner, Norfolk State University, Norfolk, Virginia.
Wireless communication is when information is transmitted from one point to another without wires and cables and uses antennas or coils to form Electromagnetic waves. The purpose of this research is to transmit a signal using Arduino, in which the signal goes through a metal barrier to the receiving end of the signal, where it receives and reads the data through an oscilloscope. The main challenge with this project is that the electric conductivity of metals makes it very challenging to get a wireless signal to transmit through the barriers and find the correct frequency to penetrate the barrier.This research is divided into two groups: transmitter design and receiver design. The transmitting group would transmit a signal of 1s and 0s by sequence. The group also had to figure and test out the Voltage switch amplifier to the transmitted signal to give such high power. Later, the team would have to create a code to generate a signal of sequences and random 0s and 1s and build an RLC circuit to produce sinewaves from that circuit. For the receiving group, the task was to use a wave generator to receive data using an Arduino board to put the data on display using python. Later, the receiving team would also test out the amplifier. Finally, combining the two groups would transmit a signal from a PC laptop to the circuit that would produce wave signals onto the transmitting coil. Then, the signal passes through the metal barrier onto the receiving coil.The transmitting team did get to transmit 1s and 0s as well as a sequence of 1s and 0s as shown on an oscilloscope. The transmitter team also successfully used the voltage switching amplifier on the circuit, which would help enhance the signal. For the RLC circuit, the team were able to produce a sine wave using the RLC circuit, providing methods of various series and parallel circuits using capacitors. The receiving team were able to graph a sine wave and a square wave full of the data captured on Arduino. The team also successfully enhanced the signal using the amplifier and amplified the circuit 5 times the original amount. When combining the two groups, both teams successfully transmitted a sequence of 0s and 1s onto the metal pipe. The current prototype can transmit on-off keying modulated signals through a 7 mm thick Aluminum pipe. The measured bit-error-rate is lower than 0.01. As far as future research goes, the research team would figure out the random bit transmission and try to transmit a signal with multiple metal barriers or thicker metal. Overall, the team achieved most of our work through this research and will do more studies on this research.References: Teja, Ravi, “Wireless Communication: Introduction, Types, and Applications,” Electronics Hub, September 09, 2021, https://www.electronicshub.org/wireless-communication-introduction-types- applications/, Assessed: September 16th, 2022.
Funder Acknowledgement(s): This research was supported by the NSF CNS 1947748 and HRD1953460, Thomas F. and Kate Miller Jeffress Memorial Trust, Bank of America, and Trustee.
Faculty Advisor: Dr. Hongzhi Guo., firstname.lastname@example.org
Role: I was part of the receiving team with Jarvis Turner. We have to do research on Arduino boards and software as well as research on analog to digital conversion. After that, we generated a sine wave and a square wave using a wave generator, and we used Arduino to receive the data collected from the waves. we also have to use the amplifier to amplify the circuit up to 5 times the wave signal. we would then combine our methods with the transmitting team to get the signal transmit and received through a metal pipe barrier.