In the context of wearable technology, which of the following tasks is/are accomplished by wearable devices?
1. Location identification of a person
2. Sleep monitoring of a person
3. Assisting the hearing-impaired person
Select the correct answer using the code given below:
Explanation
Modern wearable technology devices perform all three functions:
– 1. Location identification (Accomplished): Wearables such as GPS-enabled smartwatches, smart tags, and fitness bands track geospatial location and routes.
– 2. Sleep monitoring (Accomplished): Smart bands utilize photoplethysmography (PPG) optical sensors and accelerometers to monitor sleep cycles, REM phases, and heart-rate variability.
– 3. Assisting hearing-impaired individuals (Accomplished): Digital hearing aids, cochlear speech-processor wearables, and smart haptic bands convert acoustic inputs into amplified signals or vibrotactile alerts for the hearing-impaired.
Therefore, all three tasks are accomplished — Option D.