Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Wearable and nonwearable systems.
| Type of System | Measuring Methods |
|---|---|
| Wearable-type heartbeat measuring system |
Wristwatch-type |
| Ring-type | |
| Necklace-type | |
| Shirt-type | |
| Nonwearable-type heartbeat measuring system |
Steering-type |
| Seat-type | |
| Seatbelt-type | |
| Portable device-type | |
| Camera-type |
