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¸ÃÖÇÄÜСÇø°²·ÀϵͳÔËÓÃÁËAT89C51µ¥Æ¬»ú¡¢ËÄÖÖ±¨¾¯´«¸ÐÆ÷¡¢ADC0809¡¢CAN×ÜÏß¿ØÖÆÆ÷SJA1000ºÍCAN×ÜÏßÊÕ·¢Æ÷PCA82C250¡£±¾ÏµÍ³³ä·ÖµÄ½«Ö÷´Óʽ΢»úͨÐÅÔËÓÃÓÚ½ñÌìµÄÉú»î£¬ÌåÏÖÁË×Ô¶¯»¯µÄ·¢Õ¹Ç°¾°Ò»Æ¬¹âÃ÷¡£
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Abstract
This text has mainly probed into design question of intellectual district system which is closed with people day by day.The guard system provides many functions, such as guarding against fire¡¢gas leaking out and so on, realizing the automatization of the public security of updown. This security alarm system structure is composed by three parts:the sensor controls measure,the family control measure, and monitoring center. Alarm system of updown is made up of clients and warning center. Useing the chip of CAN to form the alarm network of uptown, and useing the software to carry out communication between clients and warning center. So that,the control center can know the the unusual situation of the families of the households,and it can deal the situation in time. This system uses the CAN network to deliver the message, and it improve the reliability, with more convenient operation, and it is used extensively in actual engineering.So it has a good applied foreground and extend value in engineering.
This system introduces the main characteristic and principle of Singlechip AT89C51¡¢several sensors¡¢SJA1000¡¢PCA82C250£¬using ADC0809 to collect datas, and then the expatiation on communication between principal and subordinate, and applicate this method to the control of MCS-51 series single-chip microcomputer.
Keywords: Singlechip communication;AT89C51;Sensor; Signal processing;Alarm£»CAN network.
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3 Ó²¼þµ¥Ôªµç·Éè¼Æ 17
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3.2 AT89C51ÓëADC0809½Ó¿Úµç· 17
3.3 AT89C51Óë¹â±¨¾¯½Ó¿Úµç· 18
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4 Èí¼þÉè¼Æ 21
4.1 CAN×ÜÏß³ÌÐò 21
4.1.2CANÊý¾Ý·¢ËÍ 22
4.1.3CAN½ÓÊÕÊý¾Ý 24
4.2 ζȴ«¸ÐÆ÷18B20 25
4.3 ADC0809ת»» 25
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5.3ÈÝ´í¼¼Êõ 34
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6.1 ÕûÌåµ÷ÊÔ·ÖÎö 35
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6.2.1×îСϵͳ°åµ÷ÊÔ 35
6.2.2A/Dת»»µç·µ÷ÊÔ 35
6.2.3¹â±¨¾¯µç·µ÷ÊÔ 36
6.2.4¼üÅÌÏÔʾµç·µ÷ÊÔ 36
6.2.5´«¸ÐÆ÷µç·µ÷ÊÔ 37
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6.3.2µ¥Æ¬»úϵͳÈí¼þµ÷ÊÔ 37
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6.4 µ÷ÊÔ¹ý³ÌÖз¢ÏÖµÄÎÊÌâ¼°½â¾ö·½·¨ 38
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Abstract
This text has mainly probed into design question of intellectual district system which is closed with people day by day.The guard system provides many functions, such as guarding against fire¡¢gas leaking out and so on, realizing the automatization of the public security of updown. This security alarm system structure is composed by three parts:the sensor controls measure,the family control measure, and monitoring center. Alarm system of updown is made up of clients and warning center. Useing the chip of CAN to form the alarm network of uptown, and useing the software to carry out communication between clients and warning center. So that,the control center can know the the unusual situation of the families of the households,and it can deal the situation in time. This system uses the CAN network to deliver the message, and it improve the reliability, with more convenient operation, and it is used extensively in actual engineering.So it has a good applied foreground and extend value in engineering.
This system introduces the main characteristic and principle of Singlechip AT89C51¡¢several sensors¡¢SJA1000¡¢PCA82C250£¬using ADC0809 to collect datas, and then the expatiation on communication between principal and subordinate, and applicate this method to the control of MCS-51 series single-chip microcomputer.
Keywords: Singlechip communication;AT89C51;Sensor; Signal processing;Alarm£»CAN network.
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1.4 ϵͳÉè¼Æ¿òͼ 3
1.5 ϵͳʵÏÖ·½·¨ 3
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3.3 AT89C51Óë¹â±¨¾¯½Ó¿Úµç· 18
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4 Èí¼þÉè¼Æ 21
4.1 CAN×ÜÏß³ÌÐò 21
4.1.2CANÊý¾Ý·¢ËÍ 22
4.1.3CAN½ÓÊÕÊý¾Ý 24
4.2 ζȴ«¸ÐÆ÷18B20 25
4.3 ADC0809ת»» 25
4.4 ¼üÅÌÊý×ÖÏÔʾ 29
5 ϵͳ¿É¿¿ÐÔÉè¼Æ 33
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5.1.2Èí¼þ¿¹¸ÉÈÅ´ëÊ© 33
5.2 Ìá¸ßÔªÆ÷¼þµÄ¿É¿¿ÐÔ 34
5.3ÈÝ´í¼¼Êõ 34
6 ϵͳµ÷ÊÔ 35
6.1 ÕûÌåµ÷ÊÔ·ÖÎö 35
6.2 Ó²¼þµ¥Ôªµç·µ÷ÊÔ 35
6.2.1×îСϵͳ°åµ÷ÊÔ 35
6.2.2A/Dת»»µç·µ÷ÊÔ 35
6.2.3¹â±¨¾¯µç·µ÷ÊÔ 36
6.2.4¼üÅÌÏÔʾµç·µ÷ÊÔ 36
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