PID自动调节直流电机的速度。认为规定直流转多少转,通过PID算法自动控制稳定在规定的转速内!-PID automatic adjustment of the speed of DC motor. DC to consider the number of provisions to, through the PID algorithm for automatic control of speed and stability within the required!
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001361s ]
SELECT `a`.`aid`,`a`.`title`,`a`.`create_time`,`m`.`username` FROM `jrk_downrecords` `a` INNER JOIN `jrk_member` `m` ON `a`.`uid`=`m`.`id` WHERE `a`.`status` = 1 GROUP BY `a`.`aid` ORDER BY `a`.`create_time` DESC LIMIT 10 [ RunTime:0.086825s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001183s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001868s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001191s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003518s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.001024s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003182s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.014133s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001276s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 140334 [ RunTime:0.001419s ]