如何识别？
通过NFC模块的Serial Number即UID，用户访问权限为R只读，每颗NFC芯片独有序列号（UID），在出厂时写入，用户不能改写。
Android如何实现？
- 通过Intent获取UID
/**
* 读取nfcUID 返回String类型大写的UID
*
* 这个测试顺便加上的，下面用不到，做个笔记~~
*
*/
public static String readUID(Intent intent) throws UnsupportedEncodingException {
Tag tagFromIntent = intent.getParcelableExtra(NfcAdapter.EXTRA_TAG);
byte[] uid = tagFromIntent != null ? tagFromIntent.getId() : null;
return HexUtil.encodeHexStr(uid, false);
}
/**
* 读取nfcUID 返回byte[]数组
*
*/
public static byte[] readUID(Intent intent) throws UnsupportedEncodingException {
Tag tagFromIntent = intent.getParcelableExtra(NfcAdapter.EXTRA_TAG);
return tagFromIntent.getId();
}
HexUtil工具类：
public class HexUtil {
/**
* 用于建立十六进制字符的输出的小写字符数组
*/
private static final char[] DIGITS_LOWER = {'0', '1', '2', '3', '4', '5', '6', '7', '8', '9',
'a', 'b', 'c', 'd', 'e', 'f'};
/**
* 用于建立十六进制字符的输出的大写字符数组
*/
private static final char[] DIGITS_UPPER = {'0', '1', '2', '3', '4', '5', '6', '7', '8', '9',
'A', 'B', 'C', 'D', 'E', 'F'};
/**
* 将字节数组转换为十六进制字符数组
*
* @param data byte[]
* @param toDigits 用于控制输出的char[]
* @return 十六进制char[]
*/
protected static char[] encodeHex(byte[] data, char[] toDigits) {
int l = data.length;
char[] out = new char[l << 1];
// two characters form the hex value.
for (int i = 0, j = 0; i < l; i++) {
out[j++] = toDigits[(0xF0 & data[i]) >>> 4];
out[j++] = toDigits[0x0F & data[i]];
}
return out;
}
/**
* 将字节数组转换为十六进制字符串
*
* @param data byte[]
* @param toLowerCase <code>true</code> 传换成小写格式 ， <code>false</code> 传换成大写格式
* @return 十六进制String
*/
public static String encodeHexStr(byte[] data, boolean toLowerCase) {
return encodeHexStr(data, toLowerCase ? DIGITS_LOWER : DIGITS_UPPER);
}
/**
* 将字节数组转换为十六进制字符串
*
* @param data byte[]
* @param toDigits 用于控制输出的char[]
* @return 十六进制String
*/
protected static String encodeHexStr(byte[] data, char[] toDigits) {
if (data == null) {
return "";
}
return new String(encodeHex(data, toDigits));
}
}
- 通过UID去查询厂商
public class Manufacturer {
private static final String MNF_UNKNOWN = "Unknown Manufacture";
public static final Map<Byte, String> ManufacturerName;
static {
ManufacturerName = new HashMap<>();
ManufacturerName.put((byte)1, "Motorola");
ManufacturerName.put((byte)2, "STMicroelectronics SA ");
ManufacturerName.put((byte)3, "Hitachi, Ltd");
ManufacturerName.put((byte)4, "NXP Semiconductors");
ManufacturerName.put((byte)5, "Infineon Technologies AG ");
ManufacturerName.put((byte)6, "Cylink");
ManufacturerName.put((byte)7, "Texas Instrument");
ManufacturerName.put((byte)8, "Fujitsu Limited");
ManufacturerName.put((byte)9, "Matsushita Electronics Corporation, Semiconductor Company");
ManufacturerName.put((byte)10, "NEC");
ManufacturerName.put((byte)11, "Oki Electric Industry Co. Ltd");
ManufacturerName.put((byte)12, "Toshiba Corp");
ManufacturerName.put((byte)13, "Mitsubishi Electric Corp");
ManufacturerName.put((byte)14, "Samsung Electronics Co. Ltd");
ManufacturerName.put((byte)15, "Hynix");
ManufacturerName.put((byte)16, "LG-Semiconductors Co. Ltd");
ManufacturerName.put((byte)17, "Emosyn-EM Microelectronics");
ManufacturerName.put((byte)18, "INSIDE Technology");
ManufacturerName.put((byte)19, "ORGA Kartensysteme GmbH");
ManufacturerName.put((byte)20, "SHARP Corporation");
ManufacturerName.put((byte)21, "ATMEL");
ManufacturerName.put((byte)22, "EM Microelectronic-Marin SA");
ManufacturerName.put((byte)23, "SMARTRAC TECHNOLOGY GmbH ");
ManufacturerName.put((byte)24, "ZMD AG");
ManufacturerName.put((byte)25, "XICOR, Inc");
ManufacturerName.put((byte)26, "Sony Corporation");
ManufacturerName.put((byte)27, "Malaysia Microelectronic Solutions Sdn. Bhd");
ManufacturerName.put((byte)28, "Emosyn");
ManufacturerName.put((byte)29, "Shanghai Fudan Microelectronics Co. Ltd");
ManufacturerName.put((byte)30, "Magellan Technology Pty Limited");
ManufacturerName.put((byte)31, "Melexis NV BO");
ManufacturerName.put((byte)32, "Renesas Technology Corp");
ManufacturerName.put((byte)33, "TAGSYS");
ManufacturerName.put((byte)34, "Transcore");
ManufacturerName.put((byte)35, "Shanghai belling corp., ltd");
ManufacturerName.put((byte)36, "Masktech Germany Gmbh");
ManufacturerName.put((byte)37, "Innovision Research and Technology Plc");
ManufacturerName.put((byte)38, "Hitachi ULSI Systems Co., Ltd");
ManufacturerName.put((byte)39, "Yubico AB ");
ManufacturerName.put((byte)40, "Ricoh");
ManufacturerName.put((byte)41, "ASK");
ManufacturerName.put((byte)42, "Unicore Microsystems, LLC");
ManufacturerName.put((byte)43, "Dallas Semiconductor/Maxim");
ManufacturerName.put((byte)44, "Impinj, Inc");
ManufacturerName.put((byte)45, "RightPlug Alliance");
ManufacturerName.put((byte)46, "Broadcom Corporation");
ManufacturerName.put((byte)47, "MStar Semiconductor, Inc");
ManufacturerName.put((byte)48, "BeeDar Technology Inc");
ManufacturerName.put((byte)49, "RFIDsec");
ManufacturerName.put((byte)50, "Schweizer Electronic AG ");
ManufacturerName.put((byte)51, "AMIC Technology Corp");
ManufacturerName.put((byte)52, "Mikron JSC");
ManufacturerName.put((byte)53, "Fraunhofer Institute for Photonic Microsystems");
ManufacturerName.put((byte)54, "IDS Microchip AG");
ManufacturerName.put((byte)55, "Kovio");
ManufacturerName.put((byte)56, "HMT Microelectronic Ltd");
ManufacturerName.put((byte)57, "Silicon Craft Technology");
ManufacturerName.put((byte)58, "Advanced Film Device Inc");
ManufacturerName.put((byte)59, "Nitecrest Ltd");
ManufacturerName.put((byte)60, "Verayo Inc");
ManufacturerName.put((byte)61, "HID Global");
ManufacturerName.put((byte)62, "Productivity Engineering Gmbh");
ManufacturerName.put((byte)63, "Austriamicrosystems AG (reserved)");
ManufacturerName.put((byte)64, "Gemalto SA");
ManufacturerName.put((byte)65, "Renesas Electronics Corporation");
ManufacturerName.put((byte)66, "3Alogics Inc");
ManufacturerName.put((byte)67, "Top TroniQ Asia Limited");
ManufacturerName.put((byte)68, "Gentag Inc (USA)");
ManufacturerName.put((byte)69, "Invengo Information Technology Co.Ltd ");
ManufacturerName.put((byte)70, "Guangzhou Sysur Microelectronics, Inc");
ManufacturerName.put((byte)71, "CEITEC S.A");
ManufacturerName.put((byte)72, "Shanghai Quanray Electronics Co. Ltd");
ManufacturerName.put((byte)73, "MediaTek Inc");
ManufacturerName.put((byte)74, "Angstrem PJSC");
ManufacturerName.put((byte)75, "Celisic Semiconductor (Hong Kong) Limited");
ManufacturerName.put((byte)76, "LEGIC Identsystems AG");
ManufacturerName.put((byte)77, "Balluff GmbH");
ManufacturerName.put((byte)78, "Oberthur Technologies ");
ManufacturerName.put((byte)79, "Silterra Malaysia Sdn. Bhd");
ManufacturerName.put((byte)80, "DELTA Danish Electronics, Light & Acoustics ");
ManufacturerName.put((byte)81, "Giesecke & Devrient GmbH");
ManufacturerName.put((byte)82, "Shenzhen China Vision Microelectronics Co., Ltd");
ManufacturerName.put((byte)83, "Shanghai Feiju Microelectronics Co. Ltd");
ManufacturerName.put((byte)84, "Intel Corporation");
ManufacturerName.put((byte)85, "Microsensys GmbH");
ManufacturerName.put((byte)86, "Sonix Technology Co., Ltd");
ManufacturerName.put((byte)87, "Qualcomm Technologies Inc");
ManufacturerName.put((byte)88, "Realtek Semiconductor Corp");
ManufacturerName.put((byte)89, "Freevision Technologies Co. Ltd");
ManufacturerName.put((byte)90, "Giantec Semiconductor Inc");
ManufacturerName.put((byte)91, "JSC Angstrem-T");
ManufacturerName.put((byte)92, "STARCHIP");
ManufacturerName.put((byte)93, "SPIRTECH");
ManufacturerName.put((byte)94, "GANTNER Electronic GmbH");
ManufacturerName.put((byte)95, "Nordic Semiconductor");
ManufacturerName.put((byte)96, "Verisiti Inc");
ManufacturerName.put((byte)97, "Wearlinks Technology Inc");
ManufacturerName.put((byte)98, "Userstar Information Systems Co., Ltd");
ManufacturerName.put((byte)99, "Pragmatic Printing Ltd");
ManufacturerName.put((byte)100, "Associado Laboratde Sistemas IntegrTecnolLSI-TEC");
ManufacturerName.put((byte)101, "Tendyron Corporation");
ManufacturerName.put((byte)102, "MUTO Smart Co., Ltd");
ManufacturerName.put((byte)103, "ON Semiconductor");
ManufacturerName.put((byte)104, "TÜBİTAK BİLGEM");
ManufacturerName.put((byte)105, "Huada Semiconductor Co., Ltd");
ManufacturerName.put((byte)106, "SEVENEY");
ManufacturerName.put((byte)107, "ISSM");
ManufacturerName.put((byte)108, "Wisesec Ltd");
ManufacturerName.put((byte)126, "Holtek");
ManufacturerName.put((byte)-112, "Shanghai Fudan Microelectronics Co. Ltd");
}
/**
* 通过UID/Serial Number获取芯片制造商名字
* @param paramArrayOfByte UID/Serial Number
* @return 制造商名字
*/
public static String getManufacturerByUid(byte[] paramArrayOfByte) {
if (paramArrayOfByte != null)
try {
if (paramArrayOfByte.length == 8) {
byte[] arrayOfByte = new byte[3];
System.arraycopy(paramArrayOfByte, paramArrayOfByte.length - 3, arrayOfByte, 0, 3);
return Arrays.equals(arrayOfByte, new byte[] { 29, 4, -32 })
? ManufacturerName.get((byte)29) : (Arrays.equals(arrayOfByte, new byte[] { -95, 4, -32 })
? ManufacturerName.get((byte)29) : (Arrays.equals(arrayOfByte, new byte[] { -94, 4, -32 })
? ManufacturerName.get((byte)29) : ManufacturerName.get(paramArrayOfByte[6])));
}
if (paramArrayOfByte.length == 7)
return ManufacturerName.get(paramArrayOfByte[0]);
} catch (Exception exception) {
exception.printStackTrace();
}
return MNF_UNKNOWN;
}
非常感谢你能看到这里，如果能够帮助到你是我的荣幸！