l 基于ZigBee无线通信技术及嵌入式开发原理,利用C语言编程,在单片板上实现温度、光照、振动三种传感器数据的采集和通信,最终实现温度实时监测与调节、光照实时监测以及安防报警功能。系统包括终端节点模块和协调器模块。终端节点模块共包含三个用户事件:温度传感器、光照传感器、振动传感器l 协调器模块的主要功能为接收数据包并转发给控制终端。l 基
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001325s ]
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:0.093876s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001255s ]
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SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001272s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003709s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.001056s ]
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SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001547s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 291079 [ RunTime:0.001335s ]