Advice - Rasberry Pi 3 data logger from analog inputs, 3G internet upload.

I am currently in an R&D phase of a project and after advice from someone with skills and experience in Raspberry Pi 3 data logging with analog inputs and 3G/4G/LTE internet connection to retrieve that data.

Can you provide advice on the use of a rasberry pi data logger for water pressure (depth) and temperature and conductance recordings as well as transmission of data at regular intervals (from 5s to 24 hours)?

Pressure and conductance sensors have analog 4-20mA outputs.

3G, 4G or LTE cellular network to be used for data transmission.

Unit needs to be battery operated and low power usage.

Unit needs to be small, able to fit sinde 50mm tube, length does not matter.

Are you able to provide advice on this project based on your experience?

Sensors to monitor include:

-Realtime clock (internet time is suitable)

-Motor start/stop sensor

-Temperature of unit / ambient

-Water depth (pressure)

-Water temperature

-Water conductance

(the 3 water sensors can be sourced elsewhere and produce a 4-20mA analog output that this unit needs to read and store the value of at a programmable time. i.e. either every minute, hour, at the an event like motor start or stop.)

Questions:

Q1. Is Rasberry Pi the most suitable product?

Q2. Can it be low power enough to last a year on one set of batteries if polled every 15 mins.

Q3. What are the estimated costs of equipment?

Q4. What other equipment is required? 4G USB modem? Analog / digital sensor board? Micro USB cards?

Квалификация: Электротехника, Электроника, Микроконтроллер, Raspberry Pi, Беспроводные технологии

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ID проекта: #18532383