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In this project e show the concept f auto braking system. In this system we make drill of peerless sensor base technology. When vehicle move on the path and in the case of sudden braking sensor sense the restraint and adjacent offer a braking system. We attach this ABS system with both lineament of braking system.either hydrolic system or induction braking. In this concept we use one photosensor with infra tearing lighthearted. Infra passing light transmit the signal in the air and if at that place is any obstruction and so this light is reflected from the quarry to the photosensor and further enlistment is on automatically. [pic] in the transmitter components we use infra red led as a transmitter and photodiode as a receiver. This photodiode is connected to the ic 555. ic 555 is a 8 pivot monostable timer ic. Photodiode is connected to the freeze no 2 directlly. When pin no 2 become more than negative then ic 555 provide a ply to the pin no 3. Pin no 4 and 8 is connected to the substantiating add on. For this purpose we use 5 quint regulated office supply for the ic. For the 5 volt regulated power supply we use ic 7805 regulator to provide a 5 volt regulation. Output of the ic 555 is connected to the H keep going circuit by 2 optocoupler components. Optocoupler is 4 pin ic with 2 pin on either side. In this optocoupler there is one commentary led and one photodiode in the otherwise side. Optocoupler provide a isolation between the input and output circuit by the optical isolation circuit. Dc ride is control by the h bridge circuit. H bridge is combination of quartet transsitor circuit. In the H bridge deuce electronic transistors are npn and two transistors are pnp transistor. With the avail of this four transistor we control the direction of the dc motor automatically. LIST OF COMPONENTS bear on of Equipment Quantity Printed Circuit Board 3 89S51 µC1 stepping mo! tor go (PM 7.5 degree step angle)1 Toy Train1 electromotive force Regulator (7805)1...If you deficiency to get a full essay, purchase order it on our website: OrderEssay.net

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