Smart Jewelry Bracelet could call for help when you're attacked

Smart Jewelry Bracelet could c...
The prototype Smart Jewelry Bracelet
The prototype Smart Jewelry Bracelet 
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The prototype Smart Jewelry Bracelet
The prototype Smart Jewelry Bracelet 

We've already seen jewelry that sends out an alert when its wearer is attacked – but they still have to push a button on it to make that happen. What if they can't reach their jewelry? Well, that's where the Smart Jewelry Bracelet comes in.

Currently in prototype form, the bracelet was created by Jayun Patel, a master's student and graduate research assistant in the University of Alabama at Birmingham's SECuRE and Trustworthy computing Lab (SECRETLab). It incorporates an Adafruit Circuit Playground, which is a microcontroller equipped with a gyroscope, accelerometer, temperature and pressure sensors, GPS and microphones.

"The sensors allow the bracelet to collect user activity and vital signs continuously," says Patel. "It can also determine the orientation of the user, for example, whether they are standing or lying down. A machine learning algorithm detects and differentiates the user's regular movement and unexpected and sudden movements that can be indicative of an assault."

When such unexpected movements are detected, the bracelet emits a loud beeping sound and begins flashing its red LEDs, in order to alert passers-by. It also connects to the wearer's smartphone via Bluetooth, then sends a message to the police and to pre-selected people on the user's contacts list – that message includes the user's present GPS coordinates.

The prototype cost just US$40 to make, and could likely be mass-produced for much less. Patel is now looking at adapting the technology to other wearable items, such as earrings or shoes, that could send an alert when elderly or disabled wearers fall down.

Source: University of Alabama at Birmingham

Ralf Biernacki
This makes no sense. You design a concealed autonomous alarm that doesn't have to be overtly triggered, and you put a flashing light and a buzzer on it. Not to mention the fact that false positives will be a massive problem.
What's the style called, gaudy-gauche? Pink 'n Pearls?
Cost for police, fire truck, and ambulance showing up because you swatted away a fly or bee? $1,500.