Thingsee Support

Power management: Background and principles

Background

Thingsee hardware is especially designed for enabling long battery life. However, there are a few facts you need to know to fully benefit the hardware capabilities. When Thingsee is working it needs power as all electronic devices.  When sleeping and waiting for action Thingsee uses extremely low power; that is the beauty of the device. You only have to maximize the sleeping time in your Purpose. This document will help you to understand the physical facts and avoid unnecessary power consumption.

 

Power consumption principles

All hardware components of Thingsee use power but the power consumption depends very much on the way the component is used. Next chapters help you to understand what are the factors affecting the power consumption.

 

Power consumption depends heavily on how the most power hungry components are used in your Purpose. These components are:

  • GSM radio
  • WLAN radio
  • GPS positioning system

 

When the device is sleeping it still actively monitors the environment. With the Purpose editor, you can program triggers which wake up the Thingsee. These triggers are:

  • Time
  • Impact (based on accelerometer)
  • Accelerometer
  • Luminance
  • External Bluetooth sensor (for any measurement)

 

Also GPS positioning is partly kept active when sleeping.

 

Generally, to achieve low power consumption:

  • Send data to the cloud only when necessary
  • Get position fix as seldom as possible
  • Be careful with the triggers so that the triggers activate only when needed

 

Sleeping power consumption:

  • Overall hardware - 22 uA
  • GPS                   - 15 uA
  • Bluetooth            - 8  uA
  • Accelerometer     - 4  uA

 

If you do not use accelerometer, Bluetooth or GPS in your purpose, those devices do not use any power when device is sleeping. However, GPS starts using power in sleeping state if it is used just once. Only way to avoid GPS sleeping power is to take battery away and not use GPS at all after that.


What's next?

Power management: Connectivity

Have more questions? Submit a request

Comments