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AIS消息规定了字符数据的内容,例如船只的名称、目的地、呼号或其他更多。这些字段应采用一个如下表中所规定的 6 比特 ASCII 码。
6-Bit ASCII | Standard ASCII | 6-Bit ASCII | Standard ASCII | ||||||||||
Chr | Dec | Hex | Binary | Dec | Hex | Binary | Chr | Dec | Hex | Binary | Dec | Hex | Binary |
@ | 0 | 0x00 | 00 0000 | 64 | 0x40 | 0100 0000 | ! | 33 | 0x21 | 10 0001 | 33 | 0x21 | 0010 0001 |
A | 1 | 0x01 | 00 0001 | 65 | 0x41 | 0100 0001 | ” | 34 | 0x22 | 10 0010 | 34 | 0x22 | 0010 0010 |
B | 2 | 0x02 | 00 0010 | 66 | 0x42 | 0100 0010 | # | 35 | 0x23 | 10 0011 | 35 | 0x23 | 0010 0011 |
C | 3 | 0x03 | 00 0011 | 67 | 0x43 | 0100 0011 | $ | 36 | 0x24 | 10 0100 | 36 | 0x24 | 0010 0100 |
D | 4 | 0x04 | 00 0100 | 68 | 0x44 | 0100 0100 | % | 37 | 0x25 | 10 0101 | 37 | 0x25 | 0010 0101 |
E | 5 | 0x05 | 00 0101 | 69 | 0x45 | 0100 0101 | & | 38 | 0x26 | 10 0110 | 38 | 0x26 | 0010 0110 |
F | 6 | 0x06 | 00 0110 | 70 | 0x46 | 0100 0110 | ` | 39 | 0x27 | 10 0111 | 39 | 0x27 | 0010 0111 |
G | 7 | 0x07 | 00 0111 | 71 | 0x47 | 0100 0111 | ( | 40 | 0x28 | 10 1000 | 40 | 0x28 | 0010 1000 |
H | 8 | 0x08 | 00 1000 | 72 | 0x48 | 0100 1000 | ) | 41 | 0x29 | 10 1001 | 41 | 0x29 | 0010 1001 |
I | 9 | 0x09 | 00 1001 | 73 | 0x49 | 0100 1001 | * | 42 | 0x2A | 10 1010 | 42 | 0x2A | 0010 1010 |
J | 10 | 0x0A | 00 1010 | 74 | 0x4A | 0100 1010 | + | 43 | 0x2B | 10 1011 | 43 | 0x2B | 0010 1011 |
K | 11 | 0x0B | 00 1011 | 75 | 0x4B | 0100 1011 | , | 44 | 0x2C | 10 1100 | 44 | 0x2C | 0010 1100 |
L | 12 | 0x0C | 00 1100 | 76 | 0x4C | 0100 1100 | – | 45 | 0x2D | 10 1101 | 45 | 0x2D | 0010 1101 |
M | 13 | 0x0D | 00 1101 | 77 | 0x4D | 0100 1101 | . | 46 | 0x2E | 10 1110 | 46 | 0x2E | 0010 1110 |
N | 14 | 0x0E | 00 1110 | 78 | 0x4E | 0100 1110 | / | 47 | 0x2F | 10 1111 | 47 | 0x2F | 0010 1111 |
O | 15 | 0x0F | 00 1111 | 79 | 0x4F | 0100 1111 | 0 | 48 | 0x30 | 11 0000 | 48 | 0x30 | 0011 0000 |
P | 16 | 0x10 | 01 0000 | 80 | 0x50 | 0101 0000 | 1 | 49 | 0x31 | 11 0001 | 49 | 0x31 | 0011 0001 |
Q | 17 | 0x11 | 01 0001 | 81 | 0x51 | 0101 0001 | 2 | 50 | 0x32 | 11 0010 | 50 | 0x32 | 0011 0010 |
R | 18 | 0x12 | 01 0010 | 82 | 0x52 | 0101 0010 | 3 | 51 | 0x33 | 11 0011 | 51 | 0x33 | 0011 0011 |
S | 19 | 0x13 | 01 0011 | 83 | 0x53 | 0101 0011 | 4 | 52 | 0x34 | 11 0100 | 52 | 0x34 | 0011 0100 |
T | 20 | 0x14 | 01 0100 | 84 | 0x54 | 0101 0100 | 5 | 53 | 0x35 | 11 0101 | 53 | 0x35 | 0011 0101 |
U | 21 | 0x15 | 01 0101 | 85 | 0x55 | 0101 0101 | 6 | 54 | 0x36 | 11 0110 | 54 | 0x36 | 0011 0110 |
V | 22 | 0x16 | 01 0110 | 86 | 0x56 | 0101 0110 | 7 | 55 | 0x37 | 11 0111 | 55 | 0x37 | 0011 0111 |
W | 23 | 0x17 | 01 0111 | 87 | 0x57 | 0101 0111 | 8 | 56 | 0x38 | 11 1000 | 56 | 0x38 | 0011 1000 |
X | 24 | 0x18 | 01 1000 | 88 | 0x58 | 0101 1000 | 9 | 57 | 0x39 | 11 1001 | 57 | 0x39 | 0011 1001 |
Y | 25 | 0x19 | 01 1001 | 89 | 0x59 | 0101 1001 | : | 58 | 0x3A | 11 1010 | 58 | 0x3A | 0011 1010 |
Z | 26 | 0x1A | 01 1010 | 90 | 0x5A | 0101 1010 | ; | 59 | 0x3B | 11 1011 | 59 | 0x3B | 0011 1011 |
[ | 27 | 0x1B | 01 1011 | 91 | 0x5B | 0101 1011 | < | 60 | 0x3C | 11 1100 | 60 | 0x3C | 0011 1100 |
\ | 28 | 0x1C | 01 1100 | 92 | 0x5C | 0101 1100 | = | 61 | 0x3D | 11 1101 | 61 | 0x3D | 0011 1101 |
] | 29 | 0x1D | 01 1101 | 93 | 0x5D | 0101 1101 | > | 62 | 0x3E | 11 1110 | 62 | 0x3E | 0011 1110 |
^ | 30 | 0x1E | 01 1110 | 94 | 0x5E | 0101 1110 | ? | 63 | 0x3F | 11 1111 | 63 | 0x3F | 0011 1111 |
- | 31 | 0x1F | 01 1111 | 95 | 0x5F | 0101 1111 | |||||||
Space | 32 | 0x20 | 10 0000 | 32 | 0x20 | 0010 0000 |