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Table 2 Power voltage demands of different devices

From: SMART: scalable and modular augmented reality template for rapid development of engineering visualization applications

Component External power supply Voltage Power
Head-mounted Display MP3750 5 V <1.25 W
Electronic Compass AAA batteries 3.6 V~5 V 0.1 W
Web Camera Through USB Unknown Unknown
RTK Rover Receiver MP3750 10 V~32 V 4.2 W
RTK Rover Radio Through RTK Rover Receiver 10.5 V~20 V 3 W
RTK Base Receiver Integrated Internal battery 7.4 V <8 W
User Command Input AA batteries 3 V Unknown
Laptop Integrated Internal battery 11.1 V 17.76 W