• State TI Thinks Resolved
  • Locked Locked
  • Replies 5 replies
  • Answers 3 answers
  • Subscribers 30 subscribers
  • Views 1160 views
  • Users 0 members are here
Support feedback
Options
Options
Related

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

IWR1443: Using it as wireless sensor module

Zam B39
Prodigy 30 points
Part Number: IWR1443
Other Parts Discussed in Thread: , IWR1642

Hello TI Team,

We plan to deploy a outdoor sensor network (probably in line of sight scenario),where the nodes are supposed to be stationary.The nodes also face each other.If any one of the nodes moves a little,we want to trigger a signal to the user.For this usage,we plan to use IWR 1443.

1)Is this right chip of choice (I understood that the max resolution is 4cm)?

2)How can  i control the directivity of the TX beam?.Because ,i am monitoring only movement of neighbourhood node and not other surrounding objects.Any external antenna possible..

Thanks in advance!..

  • 0
    TI__Guru 50240 points
    Hi Zam,

    IWR1443 is definitely appropriate for your application. Just to clarify, 4 cm resolution means that the sensor can distinguish two objects so long as they are 4 cm or more apart. The Accuracy of the device is actually substantially better and we have just put together a high accuracy lab for others to evaluate: dev.ti.com/.../


    Control of the Tx Antenna is going to be highly dependent on your external antenna design that goes along with a final board spin. This can also be aided with the use of an optical lens in order to concentrate the beam footprint.

    For now I'd highly recommend ordering the IWR1443BOOST for evaluation to see if TI's mmWave Sensors are going to be practical for your application.

    Let me know if you have any more questions at this time.


    Cheers,
    Akash
  • 0 in reply to Akash Gondalia
    Prodigy 30 points

    Thanks Akash!..

    I have gone through the documentations..

    1)With respect to tunable range vs accuracy (tradeoff) which is better IWR 1443 or IWR 16xx .

    2)It looks like IWR 1443 MMWAVE BUNDL suits,as it has radar studio to configure front end.But  i could not find much information or screenshots of radar studio.I understand that it is part of mmWave Device Firmware Package,but still couldn't see the manual .Do you have the link..

  • 0 in reply to Zam B39
    TI__Guru 50240 points
    Hi Zam,

    1) The parameters that dictate range vs accuracy are part of the Radar Front End and are not dictated by the post-processing mechanism that differentiates IWR1443 and IWR1642. If you only need the object data such as range, velocity, and angle then the IWR1443 is more than sufficient. If you are looking to do object clustering and classification then the on-board DSP in the IWR1642 might be desirable. I would recommend that unless you KNOW that you'll need the IWR1642 DSP then you should just go with the IWR1443.

    2) The Radar Studio User's Guide can be found in the DFP folder at the following location: mmwave_dfp_00_07_00_04\rf_eval\docs
    There is also a video on high speed data capture using TSW1400 along with mmWave Bundle: training.ti.com/mmwave-sensor-raw-data-capture-using-tsw1400-board


    Cheers,
    Akash
  • 0 in reply to Akash Gondalia
    Prodigy 30 points
    Thanks a lot for your information...I am in the process of making BOM to purchase the list of items..

    Since i need only narrow pencil beam with as much long range as possible,can i use the following external antenna for both tx and rx with IWR1443..(note:my application scenarios is given in first thread)

    www.sagemillimeter.com/.../

    any suggestions welcome..
  • 0 in reply to Zam B39
    TI__Guru 50240 points
    Hi Zam,

    Yes this is definitely an acceptable antenna for the IWR1443.


    Cheers,
    Akash