基于單片機(jī)的智能小車外文文獻(xiàn)翻譯-單片機(jī)-在線瀏覽
2025-03-24 08:50本頁面
【正文】 electricity sense of filter wave can be use to get to move very small straight pulse electric flow ,electricity flow barnado electric capacity easily even tantras, department of low speed operation flat experience .meanwhile ,adjustable speed stability van is surrounded relatively wide ,can reach 1000 left light .By on electrical flow wave shape than VM system .be in phase with flat to all electrical flow dynamic machine ,electric heat consumption and hair loss than a small .with the sample buy in open shut frequency rate is high ,and if a fast speed electrical machine ring should match close ,fasten tasseled phase can be to get very wide frequency band ,because of the fast speed ring should be good ,dynamic configuration sexual can perturbation resistance can force is powerful .According to the root ,with more than ensemble close and this set of electrical machine control project by tolerance of the quantity and electrical machine speed straight flow of hair ,the exhibitor to adopt the project with a single extremely H type can be changed into change device inverse PWM line speed . photoelectric detection module design The intelligent car was stuck on the black line running on white paper “road”, so this module design need to detect shop on the black rubber belt drive area , including Run straight along the arc district and driving district two area .Because f the black and white paper to light reflection coefficient is different ,can according to receive reflected light . The strength of the judge “road”the black line .this paper USES is simple and practical detection methods, namely the infrared detection method. Infrared detection method ,I use infrared ray in different colors of physical surface with different reflection properties characteristics .In the car driving process Continually to the ground to launch the infrared ,when the infrared met white ground occurs when the reflected light ,aimless and launch packed on the car of receiving tube receiving 。 if Fruit is met black line is absorbed ,and than the infrared cars receiving tube receiving less than signal . signal parative module design This part design USES a LM324 parator ,of sensor signal voltage received pare and amplified ,and will pare the results after Feed to the microcontroller ,used to detect sensor sensitivity ,diagram shown in figure 5 shows .When two sensors simultaneously detect light ,straight forward .When the sensor can’t detect light ,in cutoff state ,double LM324 operational amplifier output low level to microcontroller ,by program processing ,If left not detected light ,then left correct direction。 At the same time it has lower output saturation pressure drop and the static electricity ,The builtin clamp a diode can release the perceptual load of reverse current impulse ,making it the drive relays ,dc motors ,stepping motor or switch power tube the use of safe and reliable . Follow tracing car system to mon AT89C51, plementary with re
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