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.

Correct Answer: The correct answer is 1, 2 and 3.

Wearable technology refers to electronic devices designed to be worn on the body, either as accessories or embedded into clothing. These devices are equipped with various sensors, microprocessors, and wireless connectivity features to perform a wide range of functions:

1. Location identification of a person:
Many wearable devices (such as smartwatches, fitness trackers, and dedicated GPS trackers) are equipped with integrated Global Positioning System (GPS) chips and cellular/Bluetooth connectivity. These enable real-time tracking and location identification, which is widely used for fitness tracking, navigation, child safety, and elderly care.

2. Sleep monitoring of a person:
Modern wearable devices incorporate actigraphy sensors, accelerometers, heart rate monitors, and optical sensors to track movement and physiological signals during sleep. This allows them to monitor sleep duration, track sleep stages (light, deep, REM), and assess overall sleep quality.

3. Assisting the hearing impaired person:
Wearable medical and assistive technology includes modern digital hearing aids, bone-conduction headphones, and cochlear implant processors. Advanced wearables can also filter background noise, translate speech into text, or amplify specific frequencies to assist individuals with hearing impairments.

Since all three tasks are successfully accomplished by wearable technology, statements 1, 2, and 3 are all correct.