Irbased voice transmitter and receiver seminar paper. This project is microcontroller based laser communication system used for the successful transmission of data. This project will make visually handicapped people. A 3volts laser torch used in this project can give its maximum output with a threshold current of 30ma. Introduction to laser torch based voice transmitter and receiver project. In the transmitter cabinet, fix two terminals for connecting the audio signal. Pdf study of laser based transmission reception parameters. In beyond life code, the companion dvd to the book life code. All most all communication system comprised of two parts, the project laser voice transmitter also comprised of two parts i.
Low cost voice communication device design using ordinary laser torch poulami dutta, prakash kumar mahato, jesmin zakaria and srimanta ghosal. Laser torchbased voice free download as powerpoint presentation. Ethernet transmitters receiver lasersdetector modules. Circuit description of laser voice transmitter circuit all most all communication system comprised of two parts, the project laser voice transmitter also comprised of two parts i. The transmitter modulates power to a laser pointer with audio from a headphone jack. I understand that with a filter i can fix this, can someone help me with the design of this filter or can you give me information about it. Talking about the other half of the project, which is a receiving portion, it comprises a photo sensitive transistor. Make sure that distance between transmitter and receiver sections is below 4 meters. First, connect various inputs to the laser transmitter module such as a microphone, radio, or a computer sound card or cdrom drive. Freespace laser communication systems have the potential to provide flexible, highspeed connectivity suitable for longhaul intersatellite and deepspace links. The voltage divider network formed by r2, r3 and vr3 keeps the voltage and also the current for the laser diode in the.
Instead of rf signals, light from a laser torch is used as the carrier in this project. Amplitude modulation can lessen the distortion in laser beam output. For these applications, powerefficient transmitter and receiver designs are essential for costeffective implementation. Scribd is the worlds largest social reading and publishing site. The transmitter circuit is build using microphone, audio amplifier, laser diode and few passive components. There is a receiver at the receiving end at which the received laser light is demodulated. The phototransistor of the receiver must be accurately oriented towards the laser beam from the torch. Using this circuit we can communicate with our neighbours wirelessly. We have used phototransistor to receive the signal at receiver. Giving it a try i decided to build one from the parts. Using a simple laser pen pointer, a few misc parts, and about 15 minutes, you can make a simple laser communicator that converts a sound source into light that travels across a room, and back into.
Stateoftheart designs can leverage many of the recent advances in optical communication technologies that. Right from the origin communication system had undergone several changes in terms of its advancement, continuous modernization taking place in every aspect of global communication. Apply power to the both transmitter and receiver sections using two 9v pp3 batteries. This laser transmitter receiver circuit use light from a laser torch to transmit an receive signal from a distance up to 500 meters. Fix switch s1 on the front panel and the laser diode ld1 or laser pointer to the rear side of the cabinet. A laser diode ld1 with maximum operating voltage of about 2. The transmitter is broken down into three circuits. Objectives a laser communication system by using low cost laser torch and electronic equipment which can be got easily form local electronics and. If there is any obstruction in the path of the laser beam, no sound will be heard from the receiver. Abstractin this paper we designed the circuit, using that. Were using arduino uno connected to the computer via serial and software serial for interarduino communication. Transmit sound and other types of signals via a laser. A laser torch can transmit light up to a distance of about 500 metres. A transmitter can be a separate piece of electronic equipment, or an electrical circuit within another electronic device.
See my later video showing modules made using these circuits. Receiver circuit of laser based communication link. To send secret voice communications, move the amp from the receiver to the transmitter and plug in a mic. Low cost transmission of voice and dtmf signals using laser torch mohan. Project report for temperature control system eceprojects. This laser transmitter receiver circuit project can be used as an spy device by mounting the transmitter in one building and the receiver in other building, but. This project demonstrates the use of laser in optical communications.
The outputs of transmitter and receiver are then given. Laser transmitterreceiver sunday, december, 2009 3. Highly efficient free space laser communication ijareeie. The first circuit, which is similar to the receiver end, is the laser audio transmission circuit.
Here is a wireless laser communication project for you using lm386 low voltage audio power amplifier circuit. May 15, 2010 the laser transmitter receiver project by samer muhi takes this to the next level by using frequency modulation to reduce the amount of interference caused by ambient light and changes in transmitter intensity. Laser torch acts as a carrier for the voice signal to be transmitted. Turn on delay, frequency chirping and temperature effects.
This not only receives the signal it also demodulates it. Simple circuits using only a handful of cheap parts. Laser torch based voice transmitter and receiver embedded. Laser as a communication medium can provide a good substitute for the present day. Once the beam is broken 10 separate times, the program will quit. Minor projectlaser torchbased voice transmitter and receiver1. Lasers can also transmit through glass, however the physical properties of the glass have to be considered. Laser communication transmitter and receiver design. Feb 27, 2010 yes, you need an audio input to the transmitter so it can modulate the light. Laser torch based voice transmitter and receiver ppt presentation covers important information for understanding project over view. Project report on laser torch based voice transmitter and. Instead of rf signals,light from a laser torch is used as carrier wave in the circuit. An arduino uno project that utilizes a laser to detect when the laser beam has been interrupted.
Transmitter circuit of laser voice transmitter circuit. Connect 8 an ohm speaker at the emitter of bc548 transistor q3. The receiver circuit uses an npn phototransistor as the light sensor that is. Govinda1 waseem arshad2 santosh ram3 shashank agrawal4 1scse, university, vellore, india 2, 3, 4, sense, vit university vellore, india. T3 is a photo sensitive transistor which receives the laser from the led transmitter. Laser torch based voice transmitter and receiver electrical and electronics ieee project topics, power electronics base paper, thesis, dissertation, synopsis, abstract, report, source code, full pdf, working details for. Therefore, the control circuit can be designed similar to that for a multimode transmitter. Can someone please tell me how do a laser torch based voice transmitter and receiver works.
Here the motive of using laser is that while the transmitter and receiver must require line. Laser torch starts emitting light after its threshold current. Wireless voice communication device design using laser torch and ldr. Objectives of project the main aim of this paper is to construct a laser communication system by using low cost laser torch and available electronic equipment which can be got easily form local electronics shop everywhere and people can construct for. A laser beam is modulated and then aimed at a receiver that demodulates the signal and then presents the information voice, data, etc. Low cost transmission of voice and dtmf signals using laser torch. Icetc32017 low cost voice communication device design. The laser beam passed from the transmitter laser torch is received by t3 it produces a signal in correspondence to the light signal received from the led transmitter circuit. The transistor puts out a signal that is proportional to the light from the led. The output light is proportional to the current through the torch. Low cost transmission of voice and dtmf signals using. Looking for some analog circuits to make i got this circuit of laser based audio transmitter on efy website. C5 couples this audio to t4 and t5 which amplify the signal. If you are on a tight budget, try replacing the laser with a red led and a 100ohm resistor attached in series.
I assembled both in minutes, and it was strange in a good way to hear music whenever i held the cell in the beam. Introduction our final year project is based on the concept of laser light amplification by stimulated emission of radiation for transmitting analog signals. Using this circuit you can communi cate with your neighbours wirelessly. This project contains complete information about the design, fabrication, construction and implementation of laser torchbased voice transmitter and receiver wireless communication. Talk in secret over your own private laser beam link. Transmit voice,music,data via a laser beam with this transmitter and receiver. A transmitter and a receiver combined in one unit is called a transceiver. To transmit the voice over a distance of 500 meters using laser rather than ir. Dec 27, 2018 16 oct download project report on laser torch based voice transmitter and receiver. This transmitter works by modulating the amplitude of the laser based on the amplitude of the audio signal that we are trying to transmit. Laser torch based voice communication system slideshare. Use this as a starting point to create your own project.
Jan 27, 2017 laser torch based voice communication system 1. Presentation covers basic design details and requirements. Laser transmits audio using frequency modulation make. This paper tells about the microcontroller based communication. The transmitters pld15 contain an eled that can be coupled very efficiently into a singlemode fibre. Laser communication transmitter receiver schematic. This set of two circuits from the basis for a very simple light wave transmitter.
The laser torch can transmit light up to a distance of about 500 meters. Yes, you need an audio input to the transmitter so it can modulate the light. In this project using two microcontroller,we are transmitting data from one end using laser transmitter and at other end received by laser receiver which is connected to. Voice transmitter and receiver based on laser torch free.
Abstractin this paper we designed the circuit, using that circuit we can communicate with our neighbors wirelessly. Nov 08, 2011 this amazing demo shows how you can transmit sound over a laser beam. Laser communication transmitter receiver circuit scheme. Laser torch based voice transmitter and receiver embedded systems ieee project topics, robotics base paper, synopsis, abstract, report, source code, full pdf, working details for electronics science electical engineering, diploma, btech, be, mtech and msc college students. Approximate duration 7 class periods x 50 minutes ma frameworks technologyengineering 68 3. Amplifier, printed circuit board, operational amplifier, resistor, bipolar junction transistor. Then, aim the modulated laser beam at the sensor panel of the receiver module. Lasar torch based voice transmitter and receiver using this circuit you can communicate with your neighbours wirelessly. Voice transmitter and receiver based on laser torch. Deepak kumar, kundan kumar singh and anand mohan 2 ii. Wireless voice communication device design using laser torch. The main operation of our project is based on the two sections one is laser transmitter section and the other laser receiver section the. The main operation of our project is based on the two sections one is laser transmitter section and the other laser receiver section the combination of. Laser torch based voice transmitter and receiver k.
Oct 18, 2018 how to transmit audio with a laser pen. Download the project report and the reference files. Design and implementation of mobile laser data transceiver hayder m. Life code is a book may or may not help one to win in the real world everyday for sure, but this book will definitely help one, at least, shed some lights. Great way to test is to wave your finger up and down slowly about 12 ft in front of the module.
Laser transmitter circuit here the circuit diagram of laser transmitter. A simple and effective alexa based system to provide food and fun to your dog or. Apply the audio signal at transmitter section, now you can. Using this circuit you can communicate with your neighbours wirelessly.
I created a little laser alarm from a laser emitter and a laser receiver. Take a note that this circuit is different with av transmitter and av receiver which can be used for sound and video communication, this laser communication circuit only work for audiosound transmission. Instead of rf signals, light from a laser torch is used as the carrier in the circuit. Laser communication system detailed project with circuit.
Instead of rf signals, light from an ir led is used as. Right from the origin communication system had undergone. Laser voice transmitter circuit engineering projects. Im working on a project using 2 arduinos connected to 2 computers to demo serial to serial communication. Sep 28, 2015 international journal of technology enhancements and emerging engineering research, vol 3, issue 04 issn 23474289. Ir based voice transmitter and receiver, the aim of the project is to communicate wirelessly. Project report on laser torch based voice transmitter and receiver.
The project deals with the implementation of laser torch based voice transmitter and receiver. Laser transmitter the main properties of the laser diode transmitter are. Wireless voice communication device design using laser. Feb 27, 20 transmit voice,music,data via a laser beam with this transmitter and receiver. The term transmitter is often abbreviated xmtr or tx in technical documents. In this project we are using various transistors, led, opamp etc. However, i have had problems with sunlight because it produces erroneous readings on the receiver. Giving it a try i decided to build one from the parts lying around. Pdf laser torch based voice transmitter and receiver semantic. Then the receiver will catch the light and demodulate it and drive the speaker.
Laser torch based voice transmitter and receiver free download as word doc. Sep 09, 20 project report on laser torch based voice transmitter and receiver project report on mobile adhoc network project report on power plant optimization and demonstration. The system consists of transmitter which transmits voice signals via laser. Pdf independence is the building methodology in achieving dreams, goals and objectives in life.
Laser torch based voice transmitter and receiver electrical. The lm386 is a power amplifier audio amp chip ic designed for use in low voltage customer applications. The inside gain is set to 20, but adding of an external resistor and capacitor between pins 1 and 8 will enlarge the gain to any value from 20 to 200. Project report laser torch based communication system. The transmitter circuit comprises condenser microphone transistor amplifier bc548 followed by.
Copy and paste into an editor, then save the file as laser. The laser torch can transmit light upto a distance of about 500 meters. In this paper we designed the circuit, using that circuit we can communicate with our neighbors wirelessly. The laser transmission is very secure because it has a narrow beam. Hello everyone, im doing a circuit with an infrared laser emitter and a receiver. Laser communication project circuit schematic using laser. Objectives a laser communication system by using low cost laser torch and electronic equipment which can be got easily form local electronics and people can construct for their personal use. Laser torch based voice transmitter and receiver amplifier. Design and implementation of mobile laser data transceiver. Assemble the transmitter and receiver circuits on separate pcbs and enclose in suitable cabinets.
1525 827 760 917 306 680 649 1389 448 223 1160 437 1072 903 121 304 1235 82 1447 89 1053 1492 360 1430 268 826 1198 510 1178 9 963 464 1005 679 1282