Wi-Fi Indoor Positioning Systems: The Good, The Bad & The Alternatives
Wi-Fi is a popular technology choice for calculating the position of an asset tag for a real-time location system (RTLS). The use of Wi-Fi indoor positioning systems has advantages and limitations over other location technologies, like Bluetooth , ultra-wideband (UWB), or ultrasound . Some customers, especially users in healthcare RTLS, have found using existing Wi-FI systems to be problematic to achieve the desired accuracy goals for their RTLS solution. Wi-Fi is used in four different ways for location determination, and each approach has its own set of advantages and challenges.