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IWR6843: Output datetime-stamping

Wojciech Szczurek
Prodigy 40 points
Part Number: IWR6843
Other Parts Discussed in Thread: MMWAVE-SDK

I am pretty new to radar development so please excuse me if this is totally newbie question.

Can output stream be "timestamped" either by adding system datetime to the raw output or by automatically save output as file chunks in [year]/[month]/[day] etc. format? Is the raw output from IWR6843 friendly for view in web browsers? Is the raw format standardized and portable? I would like to integrate this output with video running on other system.

  • 0
    TI__Mastermind 30405 points

    Hi Wojciech,

    I would like to clarify what you mean by "Raw output/data" here.

    The term Raw data is specifically used for unprocessed i.e. raw ADC data which can be collected from the mmWave Sensor using special software and hardware. This is useful for algorithm development using Matlab, etc. Please refer to the following video training to get more details on this particular feature:

    Video: mmWave Sensor Raw Data Capture using the DCA1000 Board and mmWave Studio

    However, TI mmWave Sensors also provide processed "Point Cloud" information using the on-chip signal processing cores and software running on them. In this case, the point cloud information (where each point has Distance, Velocity and Angle of Arrival information) is visualized on PC based visualizers. The easiest way to start is to use the MMWAVE-SDK Out of Box demo which comes pre-programmed on EVMs shipped from the factory.

    You can find the OOB demo and various other demos with advanced functionality (e.g. object detection and tracking) are available in mmWave Industrial Toolbox on TI Resource Explorer.

    Here are some of the demo available in mmWave Industrial Toolbox:

    mmWave SDK Demo - 68xx ISK

    Area Scanner - 68xx

    Long Range People Detection and tracking

    The data output coming from the sensor (either raw ADC data or processed point cloud information, tracks) is not timestamped. This will need to be handled in the receiving application / visualizer and we don't have an example of this. The following thread discusses a similar question with regards to the mmWave ROS Visualizer Demo (Robot Operating System), and might be useful to you:

    Linux/IWR1642: The timestamp I used to generate the PCD file with the command“pointcloud_to_pcd” is always zero.

    Regards

    -Nitin