Draining our Glass: An Energy and Heat Characterization of Google Glass
This addresses energy and heat management problems for users of head-mounted display devices, but it is incremental as it focuses on characterization rather than novel solutions.
The study analyzed the power and thermal characteristics of Google Glass, identifying that its compact form factor limits battery size and causes heat issues, and provided insights to reduce power consumption for improved safety and utility.
The Google Glass is a mobile device designed to be worn as eyeglasses. This form factor enables new usage possibilities, such as hands-free video chats and instant web search. However, its shape also hampers its potential: (1) battery size, and therefore lifetime, is limited by a need for the device to be lightweight, and (2) high-power processing leads to significant heat, which should be limited, due to the Glass' compact form factor and close proximity to the user's skin. We use the Glass in a case study of the power and thermal characteristics of optical head-mounted display devices. We share insights and implications to limit power consumption to increase the safety and utility of head-mounted devices.