Dahua MXVR Series

Parameter value

Event

Alarm flag (Bits1-32):

Bit1: 1: Emergency alarm, trigger after triggering alarm switch

Bit2: 1: Over speed alarm

Bit3: 1: Driving alarm malfunction

Bit4: 1: Risk warning

Bit5: 1: GNSS module malfunction

Bit6: 1: GNSS antenna was notconnected or cut

Bit7: 1: GNSS antenna short circuited

Bit8: 1: The terminal main power undervoltage

Bit9: 1: The terminal main power is turned off

Bit10: 1: Terminal LCD or displaymalfunction

Bit11: 1: TTS module malfunction

Bit12: 1: Camera malfunction

Bit13: 1: Road transportcertificate IC card module malfunction

Bit14: 1: Over speed warning

Bit15: 1: Fatigue driving warning

Bit16-Bit18: Reserve

Bit19: 1: The accumulated overspeed driving time of the day

Bit20: 1: Timeout parking

Bit21: 1: Enter and exit the area

Bit22: 1: Enter and exit the route

Bit23: 1: The driving time of theroute is not enough/too long

Bit24: 1: Off track alarm

Bit25: 1: Vehicle VSS malfunction

Bit26: 1: Abnormal fuel capacityof vehicle

Bit27: 1: The vehicle is stolen(through vehicle burglar alarm)

Bit28: 1: Illegal ignition of vehicle

Bit29: 1: Illegal displacement ofvehicle

Bit30: 1: Collision warning

Bit31: 1: Rollover warning

Bit32: 1: Illegal open doorsalarm (when the terminal not set up, it’s not judged illegal open doors)

Status (Bits 1-32):

Bit1: 0: ACC off; 1: ACC on

Bit2: 0: Not positioning; 1: Positioning

Bit3: 0: North latitude; 1: South latitude

Bit4: 0: East longitude; 1: West longitude

Bit5: 0: Running status; 1: Stop running status

Bit6: 0: Latitude and longitude are not encrypted by secret plug-ins; 1:

Latitude and longitude are encrypted by secret plug-ins

Bit7-Bit8: Reserve

Bit9-Bit10: 00: Empty load; 01: Half load; 02: Reserve; 3: Full load

(It can be used for empty/heavy passenger car and empty/full load

status of the truck, manual input or sensor acquisition)

Bit11: 0: Vehicle oil line is normal; 1: Vehicle oil line disconnect

Bit12: 0: Vehicle circuit is normal; 1: Vehicle circuit disconnect

Bit13: 0: Vehicle door unlocked; 1: Vehicle door locked

Bit14: 0: Door 1 close; 1: Door 1 open (front door)

Bit15: 0: Door 2 close; 1: Door 2 open (middle door)

Bit16: 0: Door 3 close; 1: Door 3 open (back door)

Bit17: 0: Door 4 close; 1: Door 4 open (door of driver’s seat)

Bit18: 0: Door 5 close; 1: Door 5 open (user-defined)

Bit19: 0: No GPS positioning; 1: GPS positioning

Bit20: 0: No Beidou positioning; 1: Beidou positioning

Bit21: 0: No GLONASS positioning; 1: GLONASS positioning

Bit22: 0: No Galileo positioning; 1: Galileo positioning

Bit23-32: Reserve

Odometer

Fuel volume

Speed driving rec

Alarm event ID

Overspeed alarm

Position type

Section ID

Route alarm

Direction

Driving time alarm

Driving time

Driving results

Video related alarm

Video signal loss alarm status (Bits 1-32),

bit1-bit32 respectively indicate the 1~32 logical channels, and the corresponding bit is 1 means the video channel is lost.

The video signal blocks the alarm state (Bits 1-32)

bit1-bit32 respectively indicate the 1~32 logical channels, and the corresponding bit is 1 indicates that the video channel is blocked by the video channel.

Memory fault alarm status (Bits 1-16),

bit1-bit12 respectively indicate the 1~12 main memory,

bit13-bit16 respectively indicate the 1~4 disaster recovery storage devices,

and the corresponding bit is 1 means the memory is faulty.

Abnormal driving alarm (Bits 1-16)

Bit1：fatigue;

Bit2：call;

Bit3：smoking;

Veh. signal status

User mesage

Vehicle status, the same as state_flag

Additional information ID

1. 0x64 - driving assist warning information
2. 0x65 - driver behavior monitoring function warning information
3. 0x70 - violent driving warning information
4. 0x14 - Video-related alarm
5. 0x15 - Video signal loss alarm
6. 0x16 - Video signal blockage alarm
7. 0x17 - Memory fault alarm
8. 0x18 -Driving behavior alarm

Alarm time threshold

Warning threshold 1

When alm_type is 0x01~0x03, this bit is warning gravity acceleration threshold in 1/100g; when alm_type is 0x04~0x07, this bit is warning speed threshold in km/h.

Warning threshold 2

This bit is reserved when alm_type is 0x01~0x03; when alm_type is 0x04~0x07, this bit is warning engine speed threshold in RPM.

Workstate,

0x01: normal work

0x02: standby mode

0x03: Upgrade maintenance

0x04: Device is abnormal

0x10: Disconnect

Alarm status, bits(1-32)

Bitwise setting: 0 means no, 1 means yes

bit1: cameraabnormal

bit2: Main memory exception

bit3: Auxiliary memory exception

bit4: Infrared fill light is abnormal

bit5: abnormal speaker

bit6: Abnormal battery

bit7~bit10:reserved

bit11: Communication module error

bit12: The positioning module is abnormal

bit13~bit32:reserved

Warning level:

• 0x01: Level 1 warning
• 0x02: Level 2 warning

According to the warning sequence, starting from 0 and accumulates circularly, without distinguishing warning types.

Sign status.

• 0x00: Not available
• 0x01: Start sign
• 0x02: End sign

This field is only applicable to warnings or events with start and end sign types.

Leading vehicle speed. Range: 0~250, valid only when warning types are 0x01 and 0x02, and fill in 0x00 when not available.

Leading car/pedestrian distance

Deviation type:

1. 0x01: Left deviation
2. 0x02: Right deviation
3. Only valid when warning type is 0x02, fill in 0x00 when unavailable.

Road sign type

• 0x01: Speed limit sign
• 0x02: Height limit sign
• 0x03: Weight limit sign
• Only valid when warning types are 0x06 and 0x10; fill in 0x00 when not available.

Road sign data. Data identified on road signs, fill in 0x00 when unavailable.