* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Download IR based intelligent Automatic washbasin / mirror lamp controller
Survey
Document related concepts
Electrification wikipedia , lookup
History of electric power transmission wikipedia , lookup
Electrical ballast wikipedia , lookup
Stray voltage wikipedia , lookup
Alternating current wikipedia , lookup
Switched-mode power supply wikipedia , lookup
Buck converter wikipedia , lookup
Shockley–Queisser limit wikipedia , lookup
Optical rectenna wikipedia , lookup
Mains electricity wikipedia , lookup
Voltage optimisation wikipedia , lookup
Resistive opto-isolator wikipedia , lookup
Transcript
IR based intelligent Automatic washbasin / mirror lamp controller with water control ABSTRCT: Power supply: Object Detection using IR light: The basic idea is to send infra red light through IR-LEDs, which is then reflected by any object in front of the sensor. We use an IR emitter LED which emits infrared radiations. The radiations are reflected by any object or obstacle in its path. IR has a property that it is reflected by the white line and absorbed by the black surface. Using this principle we construct a white line follower robot. A white line is drawn on a black surface. The emitted IR is thus reflected back when sensor comes over a white surface; however no IR is reflected back in case of black surface. The reflected IR is detected by an For Details Contact: A.VINAY-9030333433, 0877-2261612 IR receiver photodiode. This is an electrical property of receiver photodiode which is the fact that a photodiode produce a voltage difference across its leads when it is subjected to light. When the IR is reflected by white surface the voltage drop across the cathode of the receiver LED decreases. We are going to use a very original technique: we are going to use another IRLED, to detect the IR light that was emitted from another LED of the exact same type! As if it was a photo-cell, but with much lower output current. In other words, the voltage generated by the LED's can't be - in any way - used to generate electrical power from light, it can barely be detected. That‟s why as you will notice in the schematic, we are going to use an Op-Amp (operational Amplifier) to accurately detect very small voltage changes Light-emitting diode: A light-emitting diode (LED) is a semiconductor light source. LEDs are used as indicator lamps in many devices and are increasingly used for other lighting. Appearing as practical electronic components in 1962.early LEDs emitted low- For Details Contact: A.VINAY-9030333433, 0877-2261612 intensity red light, but modern versions are available across the visible, ultraviolet, and infrared wavelengths, with very high brightness. When a light-emitting diode is switched on, electrons are able to recombine with electron holes within the device, releasing energy in the form of photons. This effect is called electroluminescence and the color of the light (corresponding to the energy of the photon) is determined by the energy gap of the semiconductor. An LED is often small in area (less than 1 mm2), and integrated optical components may be used to shape its radiation pattern. LEDs present many advantages over incandescent light sources including lower energy consumption, longer lifetime, improved physical robustness, smaller size, and faster switching. However, LEDs powerful enough for room lighting are relatively expensive and require more precise current and heat management than compact fluorescent lamp sources of comparable output. Light-emitting diodes are used in applications as diverse as aviation lighting, automotive lighting, advertising, general lighting, and traffic signals. LEDs have allowed new text, video displays, and sensors to be developed, while their high switching rates are also useful in advanced communications technology. Infrared LEDs are also used in the remote control units of many commercial products including televisions, DVD players and other domestic appliances. LEDs are also used in seven-segment display For Details Contact: A.VINAY-9030333433, 0877-2261612 BLOCK DIAGRAM POWER SUPPLY IR PAIR LED For Details Contact: A.VINAY-9030333433, 0877-2261612 Advantages: Highly sensitive Low cost and reliable circuit Directional counting Can count up to 99 digits Error free counting with Monostable triggering Applications: Battle filling industries Museums Visitors counting Cinema theaters Shopping malls For Details Contact: A.VINAY-9030333433, 0877-2261612