nRF9160 wake for only 1 minute in a 24 hours period, what's the mean current consumption?

[Abomin3v3l]

If nRF9160 stay almost all day in sleep, wake via RTC for a period of 1 minute and in this 1 minute period only make a GPS cold start, get the GPS coordinates and transmit them via the cellular network, around 50 bytes, and get back to sleep for more 24 hours, what would be the estimated mean current consumption of the module in microamperes for the period of 24 hours?

[Albrecht Markus Schellenberger]

Hello Jeferson,

thanks a lot for your feedback! I have to correct myself a little here:

Albrecht Markus Schellenberger said:

Downloading GPS data from a satellite normally takes around 12 minutes, so that will not be possible to do within 1 minute. Did I understand you right that this is what you want to do?

 A cold start actually is possible within around 30 seconds (under advantageous conditions), downloading the ephemerides only. My apologies for the confusion!

Abomin3v3l said:

What are the alternatives?

 You can use:

• A-GPS to receive satellite data via a cloud service (the device is reporting (multi-) cell location to the cloud). This should go faster compared to a GPS cold start and thus will lower the power consumption.
• P-GPS to load more data which is saved in the device memory.

Regards,

Markus

[Abomin3v3l]

Markus, do you think I can reach my goal for this project? The first time the product is turned on it receive the orbit information from the satelites, then keep turned always on 99.99% of time in sleep, wake 1 minute once per day to transmit the GPS position???