A smartwatch is a computerized wrist watch with enhanced functionality beyond timekeeping, often with features comparable to a PDA. While early models were capable of performing basic tasks like calculations, translations, or playing games, modern smartwatches are effectively wearable computers which include features such as camera, accelerometer, thermometer, altimeter, barometer, compass, chronograph, calculator, cell phone, touch screen, maps with GPS navigation, speaker, scheduler, SDcards that are recognized as a mass storage device by a computer etc. and rechargeable battery. It may communicate with a wireless headset, heads-up display, insulin pump, microphone, modem and other devices.
How Smartwatches work
Most of the popular Smart Watches work using a technology called Smart Personal Object Technology – SPOT, which is developed by Microsoft. SPOT allows for enhanced miniaturization, low power consumption and a low cost solution allowing for accessories such as watches to become more purposeful through the use of software.
SPOT uses FM broadcasting to deliver web-based data to Smart objects. Microsoft DirectBand Network is used to send data to Smart Watches and other SPOT objects. DirectBand consists of two components: a special chipset in the watch that houses the radio receiver and a nationwide, wide-area network (WAN) that is built on FM-subcarrier technology.
For example, a Fossil Abacus Smart Watch consists of the following components:
• Piezo (piezoelectric ceramic crystal) - This material expands and contracts when electric current is applied. The Piezo crystal in the watch acts as a tiny speaker driver, allowing the Smart Watch to generate sound.
• PCB (printed circuit board) - A PCB is usually a multi-layered board made of fiberglass. The surface and sublayers use tiny copper lines to direct electricity to various components on the PCB. The PCB in the Smart Watch houses the CPU, memory and radio chip.
• CPU - The Smart Watch uses an ARM 7 TDMI as its central processor.
• Memory - The Smart Watch uses 512 KB of ROM and 384 KB of RAM.
• DirectBand radio receiver chip - This chip was made specifically for the Smart Watch and is how the MSN Direct service connects to the watch.
• Battery - The Smart Watch battery is rechargeable. The Fossil Abacus comes with a recharging stand, but other models use an adapter that plugs into the wall.
• Inductive charging coil - This is used to charge the battery. The coil is attached to the contact surface on the back of the watch. When this surface comes in contact with the charging plate on the watch stand, the Smart Watch battery is charged through induction.
References:
http://en.wikipedia.org/wiki/Smartwatch
http://electronics.howstuffworks.com/gadgets/clocks-watches/smart-watch2.htm
How Smartwatches work
Most of the popular Smart Watches work using a technology called Smart Personal Object Technology – SPOT, which is developed by Microsoft. SPOT allows for enhanced miniaturization, low power consumption and a low cost solution allowing for accessories such as watches to become more purposeful through the use of software.
SPOT uses FM broadcasting to deliver web-based data to Smart objects. Microsoft DirectBand Network is used to send data to Smart Watches and other SPOT objects. DirectBand consists of two components: a special chipset in the watch that houses the radio receiver and a nationwide, wide-area network (WAN) that is built on FM-subcarrier technology.
For example, a Fossil Abacus Smart Watch consists of the following components:
• Piezo (piezoelectric ceramic crystal) - This material expands and contracts when electric current is applied. The Piezo crystal in the watch acts as a tiny speaker driver, allowing the Smart Watch to generate sound.
• PCB (printed circuit board) - A PCB is usually a multi-layered board made of fiberglass. The surface and sublayers use tiny copper lines to direct electricity to various components on the PCB. The PCB in the Smart Watch houses the CPU, memory and radio chip.
• CPU - The Smart Watch uses an ARM 7 TDMI as its central processor.
• Memory - The Smart Watch uses 512 KB of ROM and 384 KB of RAM.
• DirectBand radio receiver chip - This chip was made specifically for the Smart Watch and is how the MSN Direct service connects to the watch.
• Battery - The Smart Watch battery is rechargeable. The Fossil Abacus comes with a recharging stand, but other models use an adapter that plugs into the wall.
• Inductive charging coil - This is used to charge the battery. The coil is attached to the contact surface on the back of the watch. When this surface comes in contact with the charging plate on the watch stand, the Smart Watch battery is charged through induction.
References:
http://en.wikipedia.org/wiki/Smartwatch
http://electronics.howstuffworks.com/gadgets/clocks-watches/smart-watch2.htm
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