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Õª Òª ........................................................................................................................................ 1 ¹Ø¼ü´Ê ........................................................................................................................................ 1 ABSTRACT ............................................................................................................................... 2 Key Words .................................................................................................................................. 2 µÚ1Õ Ð÷ÂÛ ............................................................................................................................ 1

1.1 ¿ÎÌâ±³¾°¼°ÒâÒå ........................................................................................................ 1

1.1.1 ¿ÎÌâÑо¿µÄ±³¾° .............................................................................................. 1 1.1.2 ¿ÎÌâÑо¿µÄÒâÒå .............................................................................................. 1 1.2 ÃŽûϵͳµÄ·¢Õ¹¼°¹úÄÚÍâÑо¿×´¿ö ........................................................................ 2

1.2.1 ¹úÍâÑо¿ÏÖ×´ .................................................................................................. 2 1.2.2 ¹úÄÚÑо¿ÏÖ×´ .................................................................................................. 2

µÚ2Õ ÃŽûϵͳµÄÀíÂÛÑо¿¼¼Êõ»ù´¡ ................................................................................ 4

2.1 ÉäÆµÊ¶±ð¼¼Êõ¼ò½é .................................................................................................... 4

2.1.1 ÉäÆµÊ¶±ð¼¼ÊõÔ­Àí .......................................................................................... 4 2.1.2 ÉäÆµÊ¶±ðϵͳµÄ½á¹¹ .................................................................................... 5 2.1.3 RFIDͬÆäËü×Ô¶¯Ê¶±ð¼¼ÊõµÄ±È½Ï ................................................................ 5 2.2 ÃŽûϵͳ½á¹¹Ô­Àí .................................................................................................... 7

2.2.1 ÃŽûϵͳµÄ¹¦ÄÜ .............................................................................................. 7 2.2.2 ÃŽûϵͳµÄ½á¹¹ .............................................................................................. 7

µÚ3Õ »ùÓÚÉäÆµÊ¶±ðµÄÃŽûϵͳ×ÜÌåÉè¼Æ ........................................................................ 9

3.1 ϵͳ×ÜÌå·½°¸Éè¼Æ .................................................................................................... 9

3.1.1 ϵͳÉè¼ÆµÄ»ù±¾Ô­Ôò ...................................................................................... 9 3.1.2 ϵͳ×ÜÌå·½°¸ ................................................................................................ 10 3.2 ϵͳ¸÷Ó²¼þµÄÑ¡Ôñ¼°Éè¼Æ ...................................................................................... 10

3.2.1 ´¦ÀíÆ÷AT89C52 ............................................................................................ 11 3.2.2 MF RC500 ...................................................................................................... 11 3.2.3 ¿´ÃŹ· ............................................................................................................ 12

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3.2.4 RS485ͨѶ½Ó¿Ú×ÜÏß .................................................................................... 14 3.2.5 Òº¾§Ä£¿é ........................................................................................................ 14 3.2.6 ÆäËûÍâΧ½Ó¿Úµç· ........................................................................................ 16 3.2.7 ·Ç½Ó´¥Ê½Mifare1¿¨µÄÌìÏßÑ¡Ôñ ................................................................. 17

µÚ4Õ »ùÓÚÉäÆµÊ¶±ðµÄÃŽûϵͳӲ¼þÉè¼Æ ...................................................................... 18

4.1 É䯵¿¨¶Á¿¨Æ÷µÄÌìÏßÉè¼Æ ...................................................................................... 19

4.1.1 EMCµç·....................................................................................................... 19 4.1.2 ½ÓÊÕµç· ........................................................................................................ 19 4.1.3 Ö±½ÓÆ¥Åäµç·µÄ×迹ƥÅä ............................................................................ 20 4.2 RS485ͨѶģ¿éÉè¼Æ .............................................................................................. 20 4.3 ¿´ÃŹ·Ä£¿é .............................................................................................................. 21 4.4 E2PROM´æ´¢Æ÷µÄÓ²¼þÉè¼Æ .................................................................................. 22

4.4.1 E2PROM´æ´¢Æ÷µÄ½Ó¿Ú................................................................................ 23 4.4.2 I2C×ÜÏßЭÒé .................................................................................................. 23 4.5 ÃŽû¿ØÖƵç· .......................................................................................................... 24 µÚ5Õ »ùÓÚÉäÆµÊ¶±ðµÄÃŽûϵͳÈí¼þÉè¼Æ ...................................................................... 25

5.1 RFIDÐÅÏ¢¶ÁÈ¡¹¤×÷Á÷³Ì ........................................................................................ 25 5.2 ¶Á¿¨¹ý³Ì¼°³ÌÐòÉè¼Æ½éÉÜ ...................................................................................... 26

5.2.1 ѯ¿¨ ................................................................................................................ 26 5.2.2 ·À³åÍ» ............................................................................................................ 27 5.2.3 Ñ¡Ôñ¿¨Æ¬ ........................................................................................................ 28 5.2.4 ÑéÖ¤ ................................................................................................................ 28 5.2.5 ¶ÁÈ¡¿¨Æ¬ ........................................................................................................ 29 5.2.6 ¿¨¹ÒÆð ............................................................................................................ 29

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