January 2018
Intermediate to advanced
524 pages
13h 33m
English
Content preview from Internet of Things for Architects
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Power management
Managing power is a very broad topic, and spans software and hardware. It is important to understand the role of power management in a successful IoT deployment, and how to manage power efficiently for remote devices and long-lived devices. The architect must build a power budget for the edge device, which includes:
- Active sensor power
- Frequency of data collection
- Wireless radio communication strength and power
- Frequency of communication
- Microprocessor or microcontroller power as a function of core frequency
- Passive component power
- Energy loss from leakage or power supply inefficiency
- Power reserve for actuators and motors
The budget simply reflects the sum of these power contributors subtracted from the source of power ...
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