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4.3.2 ÍäµÀ²ßÂÔ·ÖÎö

ÆäÖУ¬ÇÐÍä·¾¶Ö÷Òª¾ö¶¨Á˳µÁ¾ÊÇÑ¡ÔñÄÚµÀ¹ýÍ仹ÊÇÍâµÀ¹ýÍä¡£ÇÐÄÚµÀ£¬Â·¾­×î¶Ì£¬µ«ÊÇÈç¹ûµØÃ渽×ÅϵÊý¹ýС»áµ¼Ö³µÁ¾³öÏֲ໬µÄ²»Îȶ¨ÐÐʻ״̬£¬Ô­ÒòÊÇÇÐÄÚµÀʱ£¬ÇúÂʰ뾶¹ýС£¬Í¬Ê±ËÙ¶ÈÓֺܿ죬ËùÒÔÄ£ÐͳµÐèÒªµÄÏòÐÄÁ¦»áºÜ´ó£¬¶øÈüµÀ±¾ÉíÊÇÆ½Ãæ½á¹¹£¬ÏòÐÄÁ¦½«È«²¿ÓɵØÃæµÄĦ²ÁÁ¦Ìṩ£¬Òò´ËÈüµÀ±íÃæµÄ¸½×ÅϵÊý½«¶ÔÈü³µµÄÔËÐÐ״̬ÓкܴóÓ°Ïì¡£ÇÐÍâµÀ£¬Â·¾¶»áÂÔ³¤£¬µ«ÊÇÓиü¶àµÄµ÷Õû»ú»á£¬Í¬Ê±ÇúÂʰ뾶µÄÔö¼Ó»áʹµÃÄ£Ðͳµ¿ÉÒÔÓµÓиü¸ßµÄ¹ýÍäËÙ¶È¡£

ÎÒÃǶÔÓÚÈüµÀµÄÖ÷Òª´¦ÀíÊÇͨ¹ýµÚÒ»ºÍµÚ¶þ¸öCCDµÃµ½ÈüµÀÆ«²îµÄ¼ÓȨ½øÐд¦ÀíµÄ¡£µ±Î»ÓÚÖ±µÀʱ£¬µÚÒ»µÚ¶þ¸öCCDµÄÆ«²î¸÷È¡0.5£¬¶øµ±Î»ÓÚÍäµÀʱ£¬µÚÒ»¸öµÄÆ«²îÈ¡0.3£¬µÚ¶þ¸öµÄÈ¡0.7.ÒòΪµÚ¶þ¸öCCDµÄǰհ¸üÔ¶£¬È¨ÖµÈ¡µÃ´óÄܹ»»ñµÃ¸ü´óµÄÆ«²î£¬´ò½Ç¸ü¼ÓѸËÙ¡£µ±ÎÒÃǵõ½µÄÆ«²î±È½ÏСʱ£¬¾­¹ýʵ¼Ê²âÁ¿£¬Ð¡SµÄÆ«²îÔÚ8~15ʱ£¬ÎÒÃÇÖ±½Ó²»´ò½Ç£¬µ±×÷Ö±µÀ½øÐд¦Àí¡£µ±Æ«²î½Ï´óʱ£¬µ±×÷ÍäµÀ½øÐд¦Àí¡£Æ«²îµÄ»ñÈ¡¾ÍÏñÎÒ֮ǰ˵µÄÄÇÑù¡£

4.3.3 Ö±½Ç²ßÂÔ·ÖÎö

±¾½ìÏȼÓÁËÖ±½ÇÈüµÀÔªËØ£¬ÔÚÖ±½ÇÍäµÀÁ½±ß¾àÀë1Ã×´¦Â·ÃæÉÏÓпí¶ÈΪ 10ÀåÃס¢³¤¶ÈµÈÓÚ·¿íµÄºÚÉ«±êʶ£¬Èçͼ4.4Ëùʾ£¬ÓÃÓÚ¹âµçƽºâ×éºÍÉãÏñÍ·×é¼ì²âÌáǰ¼õËÙ¡£ÎªÁË·ÀֹС³µÔÚÖ±µÀÒ»Ö±¼ÓËÙµ¼Ö³å³öÅܵÀ£¬Õâ¾ÍÐèÒªÎÒÃÇÌáǰ¼ì²âµ½²¢ÇÒʵÏÖÖ±µÀ¼õËÙ¡£ÎÒÃÇÕâÀïÑ¡ÓõÄÊÇÒ»¶ÔºìÍâ¶Ô¹Ü½øÐз¿íµÄºÚÉ«±êʶµÄ¼ì²â¡£Èçͼ4.5Ëùʾ£¬ÕâÀïÖ®ËùÒÔʹÓÃÒ»¶Ô¶ø²»ÊÇÒ»¸öµÄÔ­ÒòÊÇΪÁË·ÀÖ¹ÔÚµ¥ÏßÉϳöÏÖÎóÅС£¼ì²âµ½ºÚÉ«±êʶºó£¬¾­¹ýÒ»Ã׺󣬵±ÎÒÃǼì²âµ½µ¥±ß¶ªÏߣ¬ÎÒÃÇÅжÏËüΪֱ½Ç£¬È»ºóÖ±½Ó¸øÐ¡³µÒ»¸ö¹Ì¶¨µÄ´ò½Ç£¬Ö±½Óͨ¹ýÖ±½Ç¡£¾ßÌå³ÌÐòÈçÏ£º

35

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ͼ4.4 Ö±½ÇÍäµÀ

ͼ4.5 ºìÍâ¶Ô¹Ü

void right_roadsort() {

uint8 i=0;

ave_pixel2=aveu16(128,pixel2); ave_pixel1=aveu16(128,pixel1);

36

for(i=9;i>0;i--) {

average_pixel1[i]=average_pixel1[i-1]; average_pixel2[i]=average_pixel2[i-1]; }

average_pixel2[0]=ave_pixel2; average_pixel1[0]=ave_pixel1; { if(

(ccd2_roadwidth[0]>=60&&ccd2_roadwidth[0]<=75)//·¿í &&ccd2_leftlost_count>=2 &&ccd2_both_lost_count==0 &&ccd2_rightlost_count==0 &&error2>0

&&(ccd1_roadwidth[0]>=50&&ccd1_roadwidth[0]<=75)//·¿í &&ccd1_leftlost_count>=5 &&ccd1_both_lost_count==0 &&ccd1_rightlost_count==0 &&error1>0 )

{turn_left=1;bellring=30;right_roadlength=0;right_roadpass=0;right_delay_count=0;rotate_flag=1; right_distance=0; right_blackline=0; } if(

(ccd2_roadwidth[0]>=60&&ccd2_roadwidth[0]<=75)//·¿í &&ccd2_leftlost_count==0 &&ccd2_both_lost_count==0 &&ccd2_rightlost_count>=2 &&error2<0

&&(ccd1_roadwidth[0]>=50&&ccd1_roadwidth[0]<=75)//·¿í &&ccd1_leftlost_count==0 &&ccd1_both_lost_count==0 &&ccd1_rightlost_count>=5 &&error1<0 )

{turn_right=1;bellring=30;right_roadlength=0;right_roadpass=0;rotate_flag=1;

37

µÚ¾Å½ìÈ«¹ú´óѧÉúÖÇÄÜÆû³µÑûÇëÈü¼¼Êõ±¨¸æ

right_distance=0; right_blackline=0;} }

if(rotate_flag==1) rotate_angle+=rotate_w*0.01; if(ABS(rotate_angle)>right_angle_limit) {

rotate_flag=0; rotate_angle=0; turn_right=0; turn_left=0; }

right_roadpass++; if(real_v>250)

{right_limit=1;right_error_limit=12;right_angle_limit=50;} else if(real_v>240) {right_limit=3;right_error_limit=10;right_angle_limit=50;} else if(real_v>230) {right_limit=5;right_error_limit=12;right_angle_limit=50;} else if(real_v>220) {right_limit=7;right_error_limit=11;right_angle_limit=50;}// else if(real_v>200) {right_limit=10;right_error_limit=10;right_angle_limit=60;} else if(real_v>180) {right_limit=15;right_error_limit=13;right_angle_limit=60;} else if(real_v>150) {right_limit=25;right_error_limit=3;right_angle_limit=60;} else {right_limit=5;right_error_limit=12;}

if(right_roadpass>=right_limit) right_roadpass=right_limit;//6cm 6_9cm

if(turn_right==1&&ABS(rotate_angle)<50&&right_roadpass==right_limit)

{error=-right_error_limit;bellring=100;}

if(turn_left==1&&ABS(rotate_angle)<50&&right_roadpass==right_limit)

{error=right_error_limit;bellring=100;} mian_ccd_middle=64+5*right_roadpass; mian_ccd_middle=64-5*right_roadpass; }

4.3.4Ê®×Ö²ßÂÔ·ÖÎö

38

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