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An indoor light switch equipped with PIR-based occupancy sensor [1]. An occupancy sensor is an indoor device used to detect the presence of a person. Applications include automatic adjustment of lights or temperature or ventilation systems in response to the quantity of people present.
Indoor-outdoor electronic thermometers are a frequent hobbyist project and are sometimes sold as kits. Many indoor-outdoor thermometers on sale are wireless devices requiring no physical connection to the sensor placed outside. In these cases the sensor needs to be battery-powered. [4]
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This is similar to previously used geopush technology based on GPS, but with a much reduced impact on battery life and much extended precision. Another application is an indoor positioning system, [3] [4] [5] which helps smartphones determine their approximate location or context. With the help of a Bluetooth beacon, a smartphone's software can ...
Beacons periodically transmit small amounts of data within a range of approximately 70 meters, and are often used for indoor location technology. [1] Compared to devices based on Global Positioning System (GPS), beacons provide more accurate location information and can be used for indoor location. Various types of beacons exist, which can be ...
A motion detector attached to an outdoor, automatic light. A motion detector is an electrical device that utilizes a sensor to detect nearby motion (motion detection).Such a device is often integrated as a component of a system that automatically performs a task or alerts a user of motion in an area.