The idea behind the ambient sensors is to achieve the objective of ambient assisted living solutions through ambient intelligence technology to enable people with specific demands and to save energy for global sustainability. In near future, or we can say today, people living in digital environments era in which the electronics are sensitive to people’s requirements. Having ambient sensing technologies, this digital environment era must be personalized to their requirements, protective on their behavior and approachable to their presence.
Save energy through Sustainable Sensing to build a Smarter living System is the main goal of AmI , achieving this , a lot of devices and applications have been developed . For example, for specific measurement of humidity and temperature, phones now can sense the environment. Getting this idea, makers have developed a mobile weather station that can addresses temperature control in a work environment using a multi-objective fuzzy controller. It works based on user preferences and energy consumption. With the data from smartphones; temperature, ventilation and cooling system can be reformed as per user’s requirement to achieve their best comfort level with the optimization of energy levels as well.
Another example is related to cosmetics industry, philps shortly release iCat which will provide convenient skin care tips and advice products suited for specific environment, iCat consist of a camera, 13 servos, every foot contains a microphone to record sounds, speaker and sound card, touch sensors and multi-colourLEDs which are installed in the feet and ears to sense, human behavior e.g. sleeping, awake, busy and listening can be encoded.
Ambient sensors are capable enough to sense multiple physical phenomena in several surroundings. Starting from smart homes and smart buildings, ambient sensing techniques are also being implemented in urban and rural areas.
A major challenge over which great work has to be doneon ambient sensing isclock timing and synchronization of diverse signals and data. Currently, Signal travel or arrival time differences are not the only due to synchronization issue; time mismatching also address with data processing, encoding, transmission and presentation. Actually we need thesync process with complete service pipeline.