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Time, range and moving speed limit to pair and comunicate nRF52840 modules

Hi,

I would like to use the nRF52840 modules for moving nodes. However, I'm concerned that the modules will not be able to cope with high moving velocities to communicate or pair among them. If there is a speed limit to work with moving devices, I would be glad to know, thank you.

I'm also wondering about the relation between the transmission power and the range, since there is no information about the range of this module in both urban and outdoor (line of sight) areas.

Thank you in advance,

Iñigo

Parents
  • Hi Iñigo,

    We do not have any numbers on transferring data for devices moving at high velocities. However it will be possible to do some calculations if we have some more information. Could you please write some more details about your use case and specify at least:

    1. What is the range requirement?
    2. Are the devices in line-of-sight or in urban environment?
    3. What type of devices are you planning on using? Mobile phones?
    4. Are both devices moving?
    5. How much data do you need to transfer?
    6. What is the highest expected velocity?
    7. Do you need pairing or are advertisements enough?

    Ketil

Reply
  • Hi Iñigo,

    We do not have any numbers on transferring data for devices moving at high velocities. However it will be possible to do some calculations if we have some more information. Could you please write some more details about your use case and specify at least:

    1. What is the range requirement?
    2. Are the devices in line-of-sight or in urban environment?
    3. What type of devices are you planning on using? Mobile phones?
    4. Are both devices moving?
    5. How much data do you need to transfer?
    6. What is the highest expected velocity?
    7. Do you need pairing or are advertisements enough?

    Ketil

Children
  • Hi Ketil,

    The use case is composed by a fixed device and another installed in a flying object, which flies over the fixed device at a height of 100 meters and at a speed of 50 km / h. The problem is if they have to be paired to send data and how long it takes the transmission of 50 kB data.

     

    1. What is the range requirement?

    100m

    1. Are the devices in line-of-sight or in urban environment?

    Line-of-sight

    1. What type of devices are you planning on using? Mobile phones?

    Two nRF52840 devices

    1. Are both devices moving?

    Only one is moving

    1. How much data do you need to transfer?

    50KB

    1. What is the highest expected velocity?

    50 km/h

    1. Do you need pairing or are advertisements enough?

    I will be pleased if you could give me more information about pairing these devices. I suppose that the pairing is needed for the data transfer, isn’t it? In addition, what is the minimum time required in this type of use case for pairing?

     

    Thank you in advance,

    Iñigo

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