Looking for BLE module with precision at distance

[Horaceman]

I am looking for a BLE module to develop a product which will be used to track location and speed, with at least 2Hz frequency.

Requirements:

- Precision (location must be as precise as +-1m)

- Low energy (it must work using a lithium button battery)

- Small (as small as possible)

- Future connection to smartphone which will collect the data from 11 beacons at the same time from a distance up to 80m

I was told the problem with Nordic nrf5 modules is the precision, which will be most likely +-10m. Is that right?

[Elfving]

Hi Horacio,

Are you talking about indoor or outdoor positioning?

Regards,

Elfving

[Horaceman]

Outdoor. Open field.

[Elfving]

Then I assume you would want to use GPS and the nRF9160, with which you could expect these accuracies. You can find this information in the nRF9160 product specification.

Future connection to smartphone which will collect the data from 11 beacons at the same time from a distance up to 80m

If you end up using the nRF9160 for this, you might as well use LTE to communicate the position as well (letting you get this info no matter the distance). If you want the communication to be through Bluetooth, you would have to use Bluetooth long range in order to achieve 80m. 

I would recommend you to look into the Thingy:91 and the Asset Tracker v2.

Regards,

Elfving