ABCDEFGHIJKLMNOPQRSTUVWXYZ
1
The device sends a registration message (The device sends a registration message)
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7E 01 00
3
00 2D
4
01 91 72 78 56 20
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00 0A
6
00 22
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04 4E
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37 30 34 34 34 34
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43 30 30 33 46 5F 4F 50 45 4E
10
5F 4A 54 38 30 38 00 00 00 00
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32 37 38 35 36 32 30
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02
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D4 C1 42 32 37 31 39 31
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C8 7E
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Platform response
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7E 81 00
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00 09 The total number of bytes in the message body The total number of bytes in the message Body
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01 91 72 78 56 20 ID
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00 01 The sequence number is superimposed on each piece of data The sequence number is superimposed on each piece of data
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00 0A The reply serial number is the serial number in the registration data The reply serial number is the serial number in the registration data
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00 00: Success/confirmation; 01: Failure; 02: The message is incorrect; 03: Not supported. 04: Alarm (00: Success/confirmation; 01: failure; 02: The message is incorrect; 03: not supported. 04: Alarm)
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01 91 72 78 56 20 The authentication code is the id of the registration data (The authentication code is the ID of the registration data)
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83 The verification code starts from the header of the table and starts from the next byte as OR. A checksum code starts at the header and XOR with the following byte until the preceding byte of the. (A checksum code starts at the header and XOR with the following byte until the preceding byte of the checksum code, occupying one byte) Checksum code, occupying one byte)
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7E
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27
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authentication (authentication)
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7E 01 02
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00 06
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01 91 72 78 56 20
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00 36
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01 91 72 78 56 20
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33 7E
37
38
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Platform response
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7E 80 01
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00 05 The total number of bytes in the message body (The total number of bytes in the message body)
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01 91 72 78 56 20 ID
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00 02 Serial number
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00 36 Reply serial number, Answer serial number, answer serial number, answer serial number, what was the serial number of the last message so the answer serial number is what) What was the serial number of the last message so the answer serial number is what)
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0102 Reply message ID If the data is 7e0200 then the message ID is 0200 (Reply message ID If the data is 7E 0200So the message ID is 0200 if it's 7E0102So the message ID is 0102) Message ID is 0200 if it's 7E0102so the message ID is 0102)
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00 00: Successful/confirmed; 01: Failure; 02: The message is incorrect; 03: Not supported. 04: Alarm (00: Success/confirmation; 01: failure; 02: The message is incorrect; 03: not supported. 04: Alarm)
47
DE check code starts at the head of the table, XOR from the next byte, A checksum code starts at the header and XOR with the following byte until the preceding byte of the. (A checksum code starts at the header and XOR with the following byte until the preceding byte of the checksum code, occupying one byte) Checksum code, occupying one byte)
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7E
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54
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(Heartbeat packet)
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7E 00 02
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00 00
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01 91 72 78 56 20
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00 94
63
7A
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7E
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Platform response
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7E 80 01
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00 05 The total number of bytes in the message body (The total number of bytes in the message body)
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01 91 72 78 56 20 ID
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00 02 Serial number
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00 94 Answering serial number, What is the serial number of the previous data then the Answer serial number here is what (Answer serial number, what was the serial number of the last message so the answer serial number is what) What was the serial number of the last message so the answer serial number is what)
72
00 02 Reply message ID If the data is 7e0200 then the message ID is 0200 (Reply message ID If the data is 7E 0200So the message ID is 0200 if it's 7E0102So the message ID is 0102) Message ID is 0200 if it's 7E0102so the message ID is 0102)
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00 00: Successful/confirmed; 01: Failure; 02: The message is incorrect; 03: Not supported. 04: Alarm (00: Success/confirmation; 01: failure; 02: The message is incorrect; 03: not supported. 04: Alarm)
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F7 Check code starts at the head of the table, XOR from the next byte, A checksum code starts at the header and XOR with the following byte until the preceding byte of the. (A checksum code starts at the header and XOR with the following byte until the preceding byte of the checksum code, occupying one byte) Checksum code, occupying one byte)
75
7E
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80
Location data (Location data)
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7E
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02 00 Message ID
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00 57 Message body properties (Message serial number)
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01 91 71 52 99 76 Device ID (Device ID)
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00 C3 Serial number
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00 00 00 Alarm data
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00 00 08 02 Equipment status 1000 10 (Equipment status)
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01 58 9A 1B 22.583835 (latitude)
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06 CA 10 93 longitude 113.905811 (longitude)
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00 04 height (height)
91
00 00 speed (speed)
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00 D6 direction
93
20 09 22 date (September 22, 20) (date) (September 22, 20)
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22 30 26 time 22:30 26 (time) (22:30:26)
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01 Additional ID (mileage) Additional ID: (Mileage)
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04 Data length (Data length)
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00 00 00 38 miles, DWORD, 1/10km (Distance, DWORD, 1/10km)
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CC Additional ID: ICCID Additional ID: (ICCID)
100
14 Data length (Data length)