Hello!
Let me apologize in advance for a.) being a complete noob and b.) most likely not having chosen the appropriate forum. I tried for several hours to find the information, but failed. I hope someone can provide some help and guidance. It is greatly appreciated.
Alright, now to the juicy part: We have a small research project in which we want to measure various physical quantities in the cargo hold of a commercial airliner during the flight period (and some time before and after). We would like to be able to record at least acceleration and air pressure, but sound and temperature would certainly be a plus, and RF fields (GSM communications) a great bonus.
Now, TI's SensorTags look 100% perfect for what we were planning: it's super simple to use, it's very small, and it comes with 9 sensors, almost all of which are relevant to us. But, SensorTags don't seem to be able to actually store any measurements locally, and they seem to be unable to support continuous measurements.
What we would need then is the following: a device as simple as a SensoTag, but which could store data from the sensors for at least 2 hours continuously (better more). As far as the accelerometer is concerned, we would need 60Hz sampling frequency with 8 or 16 Bit resolution and 3 channels (x, y, z coordinates), so this would come out to about at least 2.5MB storage. Air pressure and temperature would need a much smaller sampling frequency (negligible storage needs), while sound would easily be in the hundreds of MB (without compression at least).
The question then is if there is anything from TI which fits our needs as nicely as a SensorTag unit would if it had the ability to store data locally with a high sampling rate for several hours. Transmitting data while recording it is not needed, and downloading the data afterwards for further analysis can certainly happen wired (there is, in other words, no need for the SensorTags' connection abilities).
I look forward to any input!
Kind regards,
Severin Sadjina
