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• the inner layer is made of Coolmax 3 or Outlast ® . The heartbeat sensors are embroidered in this<br />
layer, using Aracon ® . Electrically heated Gorix ® panels provide local heat<br />
A specially designed CPU (8MB flash memory and 16 MB RAM), based on a Hitachi H8/3003 micro<br />
controller, was integrated in the back of the external layer. Motion sensors and a wireless<br />
communication unit were put in the head control unit. In addition, 5 more processing units were<br />
incorporated in the suit.<br />
Thin, flexible cables for energy transmission between the different instruments were hidden in the<br />
garment structure. Conductive fibres were used for data transmission. A GPS (Global Positioning<br />
System), as well as a Cellular engine for mobile communication were integrated in the suit. After<br />
testing different possibilities, conventional batteries were chosen for the energy provision. It must be<br />
possible for the batteries to operate for 24 hours and to be rechargeable at the snowmobile.<br />
The suit is capable of making autonomously the decision of calling for help when an accident takes<br />
place. However, besides emergency functions, the suit can be used for navigation, receiving weather<br />
forecasts and present duration of daylight [106].<br />
Another example from the healthcare sector is the LifeShirt marketed by the American company<br />
VivoMetrics. It is a vest with embedded electrodes for heart monitoring and three conductive bands<br />
that gauge the movement of the heart and lungs from changes in their magnetic fields. The sensors<br />
record up to 30 vital variables, such as ECG, respiratory rate and pulse. A belt-mounted device<br />
records the data and can send it to a doctor who might notice dangerous patterns and adjust<br />
medications accordingly. However, the shirt simply acts as a carrier of conventional cables and<br />
electronic devices.<br />
Fig. 45 Optional Serial Expansion Module (SEM) of the Lifeshirt<br />
3 COOLMAX is a high-performant fabric, launched by Du Pont and based on the polyester fibre Dacron®. The fabric transports<br />
transpiration fluid from the body to the external layer of the textile, where it dries faster than with a traditional textile.<br />
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