SimpleWiFi手机考勤MAC地址探针以及在定位设备中的应用

SimpleWiFi在定位以及考勤设备中应用1前言现代生活中，手机成为人们不可或缺的随身物品。而WiFi则是现代手机的标准配置之一。我们可以利用手机WiFi的MAC地址进行相关的人员定位以及考勤应用。下面就是我们描述的SimpleWiFi模块在设备定位以及考勤中的应用。本文档描述了MAC地址扫描版本所增加的内容，模块透传标准功能请参照模块用户手册。2模块的功能描述SimpleWiFi模块具有2种工作模式，一：透明传输数据模式——该模式下模块将网络侧（手机或者远程后台服务器）的数据透明的传输到串口。同时，串口的数据透明的传输给网络侧。具体的使用请参照通用模块用户手册。二、MAC地址扫描模式——该模式下，模块将监听环境中所有的支持2.4G的WiFi的所有的终端（包括AP和STA，无论是否已经联网）。WiFi模块将自动的监听，WiFi终端的信号强度以及MAC地址。监听后将根据协议从串口测发送监听结果。3模块硬件说明模式切换：MAC地址扫描的控制引脚：Pin30脚（评估板中为S4按键）为MAC地址扫描的功能控制引脚。低电平——模块将工作在透明数据模式，透明数据模式见模块用户手册。高电平——模块处于MAC地址扫描的过程。默认情况下pin30脚为高点平分别对应关系是：4MAC地址扫描结果上传协议：扫描后的MAC地址，根据特定的协议上传到后台服务器。用户可以利用收到的数据进行相关的定位应用了。详细的协议请找厂家索取。5MAC地址扫描相关参数配置说明：请参照新版本说明文件.doc文件附录：CRC-8算法参考实现INT8U__crc8_tbl[256]={0x00,0x91,0xe3,0x72,0x07,0x96,0xe4,0x75,0x0e,0x9f,0xed,0x7c,0x09,0x98,0xea,0x7b,0x1c,0x8d,0xff,0x6e,0x1b,0x8a,0xf8,0x69,0x12,0x83,0xf1,0x60,0x15,0x84,0xf6,0x67,0x38,0xa9,0xdb,0x4a,0x3f,0xae,0xdc,0x4d,0x36,0xa7,0xd5,0x44,0x31,0xa0,0xd2,0x43,0x24,0xb5,0xc7,0x56,0x23,0xb2,0xc0,0x51,0x2a,0xbb,0xc9,0x58,0x2d,0xbc,0xce,0x5f,0x70,0xe1,0x93,0x02,0x77,0xe6,0x94,0x05,0x7e,0xef,0x9d,0x0c,0x79,0xe8,0x9a,0x0b,0x6c,0xfd,0x8f,0x1e,0x6b,0xfa,0x88,0x19,0x62,0xf3,0x81,0x10,0x65,0xf4,0x86,0x17,0x48,0xd9,0xab,0x3a,0x4f,0xde,0xac,0x3d,0x46,0xd7,0xa5,0x34,0x41,0xd0,0xa2,0x33,0x54,0xc5,0xb7,0x26,0x53,0xc2,0xb0,0x21,0x5a,0xcb,0xb9,0x28,0x5d,0xcc,0xbe,0x2f,0xe0,0x71,0x03,0x92,0xe7,0x76,0x04,0x95,0xee,0x7f,0x0d,0x9c,0xe9,0x78,0x0a,0x9b,0xfc,0x6d,0x1f,0x8e,0xfb,0x6a,0x18,0x89,0xf2,0x63,0x11,0x80,0xf5,0x64,0x16,0x87,0xd8,0x49,0x3b,0xaa,0xdf,0x4e,0x3c,0xad,0xd6,0x47,0x35,0xa4,0xd1,0x40,0x32,0xa3,0xc4,0x55,0x27,0xb6,0xc3,0x52,0x20,0xb1,0xca,0x5b,0x29,0xb8,0xcd,0x5c,0x2e,0xbf,0x90,0x01,0x73,0xe2,0x97,0x06,0x74,0xe5,0x9e,0x0f,0x7d,0xec,0x99,0x08,0x7a,0xeb,0x8c,0x1d,0x6f,0xfe,0x8b,0x1a,0x68,0xf9,0x82,0x13,0x61,0xf0,0x85,0x14,0x66,0xf7,0xa8,0x39,0x4b,0xda,0xaf,0x3e,0x4c,0xdd,0xa6,0x37,0x45,0xd4,0xa1,0x30,0x42,0xd3,0xb4,0x25,0x57,0xc6,0xb3,0x22,0x50,0xc1,0xba,0x2b,0x59,0xc8,0xbd,0x2c,0x5e,0xcf};INT32SChkCrc8(INT8U*ptr,INT32Ulen){INT8Ucrc8,data;crc8=0;while(len--!=0){data=*ptr++;crc8=__crc8_tbl[crc8^data];}if(crc8==0x00)return0;elsereturn-1;}INT8UGetCrc8(INT8U*ptr,INT32Ulen){INT8Ucrc8,data;crc8=0;while(len--!=0){data=*ptr++;crc8=__crc8_tbl[crc8^data];}returncrc8;}