1、单击此处编辑母版标题样式单击此处编辑母版副标题样式* 1新人教版四年级上册数学广角 烙饼问题This paper mainly introduces the design of an intelligent temperature control system which realizes the function of temperature measurement and control by using single bus digital temperature sensor DS18B20 and single chip microcomputer. The core compone
2、nts of the system are AT89C51 microcontroller and DS18B20 temperature sensor.我最喜欢吃馅饼了！单击此处编辑母版标题样式单击此处编辑母版副标题样式* 3v爸爸、妈妈v和我每人一张。每次只能烙两张饼，两面都要烙，每面 3分钟怎样才能尽快吃上饼？单击此处编辑母版标题样式单击此处编辑母版副标题样式* 4一次只能放两个饼每个饼要烙两面每个饼每面要烙 分钟 才熟！三张饼怎样烙时间最短？This paper mainly introduces the design of an intelligent temperature con
3、trol system which realizes the function of temperature measurement and control by using single bus digital temperature sensor DS18B20 and single chip microcomputer. The core components of the system are AT89C51 microcontroller and DS18B20 temperature sensor.烙 1张饼需要 分钟，烙 2张饼最快需要 分钟66单击此处编辑母版标题样式单击此处编
4、辑母版副标题样式* 61 2 3操作This paper mainly introduces the design of an intelligent temperature control system which realizes the function of temperature measurement and control by using single bus digital temperature sensor DS18B20 and single chip microcomputer. The core components of the system are AT89C5
5、1 microcontroller and DS18B20 temperature sensor.小组合作学习 ：1、 用准备好的圆片摆一摆。2、把想法和小组里的同学说一说。3、说完后，把你们设计的方案填在表格中。This paper mainly introduces the design of an intelligent temperature control system which realizes the function of temperature measurement and control by using single bus digital temperature s
6、ensor DS18B20 and single chip microcomputer. The core components of the system are AT89C51 microcontroller and DS18B20 temperature sensor.方案一 ： 一张一张的烙。时间： 6+6+6=18分钟方案二 ： 先烙二张再烙第三张。时间： 6+6=12分钟方案三： 先烙两张的正面，再烙第一张的反面和第三张的正面，最后烙第二张和第三张的反面的时间 ： 3+3+3= 9分钟This paper mainly introduces the design of an int
7、elligent temperature control system which realizes the function of temperature measurement and control by using single bus digital temperature sensor DS18B20 and single chip microcomputer. The core components of the system are AT89C51 microcontroller and DS18B20 temperature sensor. 用 最佳方案 烙 3张饼需要 分钟
8、 每次烙饼，锅里有 张饼 时，速度最快。两9单击此处编辑母版标题样式单击此处编辑母版副标题样式* 1031 23分钟单击此处编辑母版标题样式单击此处编辑母版副标题样式* 1131 23分钟单击此处编辑母版标题样式单击此处编辑母版副标题样式* 1231 23分钟 +3分钟OK分钟This paper mainly introduces the design of an intelligent temperature control system which realizes the function of temperature measurement and control by using
9、single bus digital temperature sensor DS18B20 and single chip microcomputer. The core components of the system are AT89C51 microcontroller and DS18B20 temperature sensor.233分钟 +3分钟 +3分钟2OK 1单击此处编辑母版标题样式单击此处编辑母版副标题样式* 143分钟 +3分钟 +3分钟2 3OK 1This paper mainly introduces the design of an intelligent tem
10、perature control system which realizes the function of temperature measurement and control by using single bus digital temperature sensor DS18B20 and single chip microcomputer. The core components of the system are AT89C51 microcontroller and DS18B20 temperature sensor.烙饼的次数 饼 1 饼 2 饼 3 每次烙饼所用的时间第一次
11、第二次第三次烙饼所用的总时间是（ ）正 正反 正反 反3分钟3分钟3分钟9分钟烙 3张饼的最优方法This paper mainly introduces the design of an intelligent temperature control system which realizes the function of temperature measurement and control by using single bus digital temperature sensor DS18B20 and single chip microcomputer. The core comp
12、onents of the system are AT89C51 microcontroller and DS18B20 temperature sensor.如果要烙 4张饼、 5张饼 10张饼甚至更多的饼呢？讨论：讨论：This paper mainly introduces the design of an intelligent temperature control system which realizes the function of temperature measurement and control by using single bus digital temperat
13、ure sensor DS18B20 and single chip microcomputer. The core components of the system are AT89C51 microcontroller and DS18B20 temperature sensor.2 同时烙 2张饼地正反面 64 2张 2张地烙 126 188 2张 2张地烙 2410 2张 2张地烙 302张 2张地烙（ 用 最佳方 案 3张 3张地烙 ）This paper mainly introduces the design of an intelligent temperature contr
14、ol system which realizes the function of temperature measurement and control by using single bus digital temperature sensor DS18B20 and single chip microcomputer. The core components of the system are AT89C51 microcontroller and DS18B20 temperature sensor.用 烙 3张饼的最佳方案烙先烙 2张 2张烙，再用 最佳方 案 烙 3张先 2张 2张地
15、烙，再 用 最佳方 案 烙 3张先 2张 2张地烙，再 用 最佳方 案 烙 3张5791115212733This paper mainly introduces the design of an intelligent temperature control system which realizes the function of temperature measurement and control by using single bus digital temperature sensor DS18B20 and single chip microcomputer. The core
16、components of the system are AT89C51 microcontroller and DS18B20 temperature sensor.要烙的饼数是双数时 。 要烙的饼数是单数时 。张张地烙先张张地烙，最后剩张按最佳方案烙This paper mainly introduces the design of an intelligent temperature control system which realizes the function of temperature measurement and control by using single bus digital temperature sensor DS18B20 and single chip microcomputer. The core components of the system are AT89C51 microcontroller and DS18B20 temperature sensor.最佳方法烙饼所用时间 =所烙饼数 3（ 所烙饼数 ）1单击此处编辑母版标题样式单击此处编辑母版副标题样式* 21时间，每人每天得到的一天的时间给勤勉的人带来智慧和力量，给懒散的人只能留下一片悔恨。鲁迅
