amr mohamed
Occupation: : 369 Date of Birth : 1994-09-29 Join Date : 2010-11-12 Age : 29
| Subject: Car parking Sensor Mon 04 Apr 2011, 10:05 am | |
| Car parking Sensor Description Service
An electronic circuit that senses The existence of a nearby body of the car .. And give Audio or warning light to avoid collision ..
Idea Service
There are many ideas and electronic circuits to achieve the same result .. Ones that Depends on the acoustic vibrations Ultrasonic .. Or that use infrared Infra Red
Of course, each type has its disadvantages
The Ultra_sonic
- You can measure the distance accurately .. And not only Control .. - can be monitored relatively long distances .. - Circuit design need to take into account Using frequencies appropriate .. Which Ensure they do not overlap with the waves of Foreign Affairs
The Infra Red-can not control long-distance .. - Gelba be simple and easy configuration .. And cheap .. - very practical
Electronic circuit Explain Electronic circuit
Circuit used to control the car after For any body .. Wall, for example .. It has excellent Undemanding and simple .. .. D7 .. Photodiode will be activated when thethe car is About 20 centimeters from any body .. D6 + D7 .. Will be activated after 10 cm .. D7 + D6 + D5 .. After 6 centimeters from any Body
Some observations Task
- the feeder should be regularly 12 volt to 24 volts .. - D2 of the kind that contains the filter Internal against the sun .. So as not to be affected Work of the Service .. - Avoid any artificial lighting directly on the D2 .. - can be installed D5 + D6 + D7 inside Car .. - To make the process of the Setup of the Service .. I. .. Near the D2 to D1 until activated .. And without any object, and then all the dimensions of the D2 D1 even cloud the
Circuit elements
R110K 1/4W resistance R2, R5, R6, R91K 1/4W resistance R333R 1/4W resistance R4, R111M 1/4W resistance R74K7 1/4W resistance R81K5 1/4W resistance R10, R12-R141K 1/4W resistance C1, C41μF 63V capacitor C247pF 63V capacitor C3, C5100μF 25V capacitor D1-emitting diode infrared D2 diode infrared D3, D4 1N4148 75V 150mA diode D5-7LEDs
IC2 LM324 Low Power Quad Op-amp Service Integrated IC3 7812 12V 1A Positive voltage regulator IC
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