Function description
- The document agreement is JT808- 2011 documents on the basis of the agreement extended out
- Attachment: 808 parsing tool plug- in that supports parsing extended protocols
1. Get device information
New:
| Parameter ID | Field | Data Type | Description |
|:- - - - |:- - - - - - - |:- - - | - - | - - | - - - - - - |
|0x09 |IMEI |BYTE[15] | |
| 0x0A | Disk Type | BYTE | 1:SD Card/2: HDD/3:SSD |
**Correct return example for querying vehicle information: **
7E
4040
0092
014354524365
0004
0018
07
00000001 05 3730313131
00000002 14.
00000003 28.
00000004 01 01
00000005 0C 000000060000000000000000
00000006 0C 00000001003B500000000000
00000007 12 0500000000000000000000000000000000000015A37E
2. FTP Upgrade
Online upgrade: The server follows the text information of 8300 in the 808-2011 document issued
| Starting byte | Segment | Data type | Starting byte |
| :----------------- | :------------ | :------------ |
| 0 | Marker | BYTE | 1 (Urgent) |
| 1 | Text Information | STRING | Parameters are separated by semicolons, marked as $ $ upgrade, commands are as follows: marked with IP address; port; username; password; firmware version; file path Example: $ $ upgrade;127.0.0.1;21;admin;admin;v2-3-1;/FTPupgrade/upgrade.file.crc |
Example:
7E830000460138000000010002012424757067726164653B3132372E302E302E313B32313B61646D696E3B61646D696E3B56322D332D313B2F465450757067726164652F7570677261646566696C652E637263D87E
3. Control instructions such as fuel cut- off, power cut- off and restart
- Terminal control(0x8105) extension definition:
| Command character | Parameter | Description and requirements |
|---|---|---|
| 0X70 | None | Turn off the oil circuit |
| 0X71 | None | Restore the oil circuit |
| 0X72 | None | Turn off the circuit |
| 0X73 | None | Resume the circuit |
| 0X74 | None | Restart the equipment |
4. Temperature Protocol Extension
Server version requirements: only servers after 7.19 20191108 version are supported
**If there are multiple sensors reporting, please use temperature 1- 4, humidity 1- 4 does not resolve **
- The temperature sensor uses an additional ID - E4
- 8.12 Position information report(0x0200)
Message ID: 0x0200.
The location information reporting message body consists of basic location information and location additional information items, as follows：
| Additional Information ID | Length of Additional Information | Description and Requirements |
|---|---|---|
| 0xE4 | 16 | Temperature 1 WORD Range (-40°C ~ 80°C) Humidity 1 WORD Range (0%rh ~ 100%rh) Temperature 2 WORD Humidity 2 WORD Temperature 3 WORD Humidity 3 WORD Temperature 4 WORD Humidity 4 WORD |
Note: High byte first; low byte last; most significant bit is 1 for negative numbers; such as -39.18 ° C value is 0x8F4E
5. Wireless communication network signal strength
Extension ID 0x 30 BYTE Wireless Communication Network Signal Strength
//0 - 6 (difference) 7~12 13~19 20~26 27~255 respectively correspond to 1 weak, 2 poor signals, 3 fair signals, 4 good signals and 5 excellent signals
6. Positive and reverse state
(Tongtianxing) Extension ID 0x 52 BYTE Positive and Reverse (0: Unknown; 1: forward rotation (empty vehicle) 2: reverse rotation (heavy vehicle); 3: stop rotation)
7.(Auxiliary) fuel tank
(Tongtianxing) expansion ID 0xEC WORD (sub) oil quantity unit is 1/10L
8. Water level
(Tongtianxing) extended ID 0xED DWORD water level unit is L
9.MDVR Status (Tongtian Star)
Extended ID 0xEF BYTE[13] MDVR Status
| Start byte | Field | Data type | Description and requirements |
|---|---|---|---|
| 0 | Camera | BYTE[6] | Every 3 bits represents a BIT0- BIT2 of camera status: camera 1 BIT3- BIT5: camera 2... BIT45- BIT47: camera 16 0: normal (camera is normal and audio and video data streams are stored in memory) 1: not recording (camera is normal) 2: not enabling 3: abnormal (camera is not connected or other hardware faults) 4- 7: reserved |
| 6 | IPC | BYTE[3] | Every 3 bits represents the BIT0- BIT2 of IPC camera status: IPC camera 1 BIT3- BIT5:IPC camera 2... BIT21- BIT23: IPC camera 8 0: Normal (IPC camera is normal and audio and video data streams are stored in memory) 1: Not recorded (IPC camera is normal) 2: Not enabled 3: exception (IPC camera not connected or other hardware failure) 4- 7: Reserved |
| 9 | Main Memory | WORD | BIT0- BIT3: Main Memory 1 BIT4- BIT7: Main Memory 2 BIT8- BIT11: Main Memory 3 BIT12- BIT15: Main Memory 4 0x 00: Normal 0x 01: Not Enabled 0x 02: Not Inserted 0x 03: Full (Storage Method Not Overwritten) 0x 04: Unformatted 0x 05: write error and cannot recover 0x 06- 0x0F: Reserved |
| 11 | Disaster Recovery Memory | BYTE | BIT0- BIT3: Disaster Recovery Memory 1 BIT4- BIT7: Disaster Recovery Memory 2 0x 00: Normal 0x 01: Not Enabled 0x 02: Not Inserted 0x 03: Full Write (Storage Method Not Overwritten) 0x 04: Unformatted 0x 05: Write Error and Unable to Recover 0x06- 0x0F: Reserved |
| 12 | Network Status | BYTE | BIT0- BIT3: 0x 00: Unknown Network System, Default 3G 0x 01:3G(~~ 2G Not Used ~ ~) 0x 02:3G 0x 03: 4G 0x 04:5G 0x 05- 0x 08: Reserved 0x 09:WIFI 0x0A: Wired 0x0B- 0x0F: Reserved BIT4- BIT7: Reserved |
