Indoor human localization using PIR sensors and accessibility map

On analyzing user location discovery methods in smart homes: A taxonomy and survey

“…User privacy, installation [40] Simplicity, easy to use needing to have data set, user privacy, error prone (noise in depth image information, camera motion estimation inaccuracy) [6] Multiple users, reliability (cameras and sensory floor) User privacy, installation [7] reliability (cameras, microphones), accuracy, multiple users User privacy, complexity, installation [41] scalability, user privacy, low complexity, robustness, fault tolerance accuracy depends on number of sensors, installation [42] Simplicity, easy to use, user privacy low accuracy, limitation to only one person [24] User privacy, multiple users installation, scalability [44] easy to use and simplicity, user privacy effected by the clutter (multiple-input multipleoutput radar system reduced this effect) [31] User privacy, easy to use relative accuracy (Increasing the number of reference nodes can improve accuracy), signal strength is effected by environmental parameters such as humidity or by interference from other RF sources [43] User privacy, easy to use and comfortable Scalability, only one user [49] Cost, comfortable, privacy Complexity, accuracy, need to have recorded observations [54] Cheap, easy to use, energy efficient, dealing with noise, recovery from the failure Accuracy depends on number of sensors, limited to single person [57] Based on cheap and low cost PIR sensors, privacy, user comfort…”

“…Yang et al [57] presented a combined ULD method using Passive In-fraRed (PIR) sensors and an accessibility map of the indoor environment. They proposed using the accessibility map to reduce the uncertainty of localization discovery, where the typical PIR-based ULD solutions suffer.…”

Long range, high sensitivity, low noise capacitive sensor for tagless indoor human localization

“…Pyroelectric infrared (PIR) sensors are widely used for indoor human detection, localization and tracking [9], [10], [11]. Recent research also achieves indoor human identification within a small group using PIR sensors [12].…”

High sensitivity, low noise front-end for long range capacitive sensors for tagless indoor human localization

“…Other tagless indoor localization techniques include ultrasonic transceivers to localize indoor persons or objects [4], but extended exposure to ultrasounds can be harmful [5]. D. Yang et al propose indoor human localization using pyroelectric infrared (PIR) sensors and an accessibility map [6]. A larger number of sensors were used since the PIR sensors have a narrow field of view [7] and they are also prone to errors due to ambient and heat sources, such as electric bulbs, sunshine, stoves, heaters.…”