Segmented tracking clip attaches to power tools using flexible arms, providing real-time location data without increasing device complexity.
A dual-mode communication tag switches between Wi-Fi and non-Wi-Fi networks to optimize location accuracy and energy efficiency.
Extended Kalman Filtering and machine learning correct cellular pseudorange errors, maintaining positioning accuracy when satellite signals are unavailable.
Radar system analyzes reflected signal characteristics to identify cable obstacles, resolving detection gaps in adverse weather conditions.
Microcell beacons broadcast site-specific location data to mobile stations, resolving indoor GPS signal blockage.
A method processes RSSI values with exponential moving averages to determine device proximity without profile-dependent connections.
A radio map updating system compares partial maps to identify significant changes before publishing differential updates.
Verifies V2V sender authenticity through position mapping to prevent malicious false information injection.
Access points exchange positioning control messages to calculate device location without clock synchronization or active signal transmission.
Programmable thresholds reduce false alarms while periodic monitoring conserves battery life during continuous tracking.
A geolocation system selects trustworthy distance measurements using confidence metrics to compute position candidates.
Aggregates independent phase ambiguity decisions from multiple nodes to resolve integer ambiguities despite varying reception conditions.
A method determines node positions by selecting the largest observable sub-graph within a communication network.
A video camera and range finder system calculates target positions using a calibration matrix to transform instrument coordinates into a local coordinate system.
Combines wireless signal measurements with displacement sensor data to determine user equipment position in environments with poor signal hearability.
A laser surveying instrument projects N-shaped beams to detect elevation angles and control construction machine posture.
A radio positioning system computes position and time to preset a local GPS replica code phase for rapid signal acquisition.
User equipment exchanges LTE positioning protocol messages to optimize location estimation services.
A WLAN location measuring apparatus calculates terminal positions using access point coordinates and signal strengths.
Passive receiver units detect vessel positions using time intervals from rotating radar beams to eliminate ghost localizations.
Probabilistic motion models fuse cellular network data and inertial sensors to resolve location tracking errors caused by urban signal obstructions.