基于單片機(jī)的智能小車外文文獻(xiàn)翻譯

1、南京航空航天大學(xué)金城學(xué)院 南京航空航天大學(xué)金城學(xué)院畢業(yè)設(shè)計(jì)（論文）外文文獻(xiàn)翻譯 畢業(yè)設(shè)計(jì)（論文）外文文獻(xiàn)翻譯系 部 機(jī)電工程系專 業(yè) 車輛工程學(xué)生姓名 學(xué)生姓名 顧偉 學(xué)號(hào) 學(xué)號(hào) 200901223指導(dǎo)教師 指導(dǎo)教師 卞利云 職稱 職稱 講師2013 年 2 月ensemble close and this set of electrical machine control project by tolerance of t

2、he 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 .1.1 photoelectric detection modu

3、le 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 d

4、riving 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 si

5、mple 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 th

6、e 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 m

7、et black line is absorbed ,and than the infrared cars receiving tube receiving less than signal .1.2 signal comparative module design This part design USES a LM324 comparator ,of sensor signal voltage received compare an

8、d amplified ,and will compare 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 se

9、nsor can’t detect light ,in cut-off state ,double LM324 operational amplifier output low level to microcontroller ,by program processing ,If left not detected light ,then left correct direction; If the right has not been

10、 detected light ,then turn correct direction .1.3 motor control and driving module design Because use is double drive cars ,this part of the circuit must be able to output of two different voltage values ,respectively to

11、 controlling trolley right and left two motor drive ,the two of the wheel speed and direction of the same or different ,thus to control its advance and turning .In system design process ,use two L9110 chips to connect SC

12、M and dc motor respectively .L9110 is for control and drive motor design two channels push-pull power amplifier application-specific integrated circuit device ,discrete circuits in monolithic IC integrated such that the

13、peripheral equipments in lower cost and the whole machine can carry on sexual high .The core slice two a TTL/CMOS and let electricity flat lose into ,have good anti-jamming ,two output terminal can pick flooding dynamic