How to check I am receiving correct data from teltonika dual cam?

Telematics
1

Hello all, I have received a request from teltonika dual cam like this:0000000500013ee13c00198144000400, When I decoded it I got that photo rear available then I am sending request like this:0x000800072570686F746F66.

I got data from device like this: 0000000500013ee13c0019814400040000010006000000200000
0000000500013ee13c001981440004000001000600000020000000010006000000200000
and it is just increasing by 20 everytime
I am very confused how to process it further, please help asap

2

Please help me to troubleshoot this problem asap.

3

Hello @Rahat

Please refer on our wiki page: DualCam Communication Protocol - Teltonika Telematics Wiki

DualCam Protocol Data Analysis

The hex data you’ve provided represents DualCam communication protocol responses containing structured information about camera status and file availability.

Data Structure Breakdown

Your hex strings follow the DualCam Communication Protocol format:

0000000500013ee13c0019814400040000010006000000200000
0000000500013ee13c001981440004000001000600000020000000010006000000200000

These responses contain:

  • Command identifiers and data length fields

  • File availability indicators

  • Camera status information

  • Metadata about captured content

Protocol Command Structure

The DualCam protocol uses specific command IDs for different operations:

Command ID Purpose
0x0005 File transfer status command
0x0008 File request command
0x000A Query file metadata request
0x000B File metadata response

File Metadata Information

When you receive metadata responses, they contain structured data including:

  • File type (media type confirmation)

  • Timestamp (when video file was finalized)

  • Trigger values (same as video sending trigger in SOS record)

  • Video length (duration in seconds, 0x0000 for photos)

  • Frame rate settings

  • Coordinates and time zone information

  • Trigger timestamp (when the trigger occurred)

Camera Status Indicators

The protocol responses indicate:

  • Camera operational status

  • Available file counts

  • File size information

  • Metadata timestamps

File Transfer Process

The DualCam system operates through a structured request-response protocol:

  1. Status requests to check camera availability and content

  2. Content requests using specific commands

  3. Data responses containing file information and metadata