Transmitter Calibration Using Distance Sensor Reference Data

The patent introduces reference data as an intermediary element that mediates between the radio signal properties and distance determination. This reference data, which includes signal strength measurements taken at known distances during calibration, serves as a reference framework that allows the system to account for environmental influences and signal variations, thereby improving measurement accuracy without requiring direct measurement modifications

The patent applies parameter changes by calibrating the transmitter device to determine optimal reference data values that account for specific environmental conditions and assembly variations. By adjusting and storing these reference parameters (signal strength at various distances), the system adapts to local conditions and compensates for environmental influences, resolving the contradiction between providing localization services and maintaining accuracy

The patent implements self-service by enabling the transmitter device to perform self-calibration automatically. The device detects its own signal properties, determines the appropriate reference data based on detected distances, and stores this calibration data internally. This eliminates the need for complex external calibration equipment or manual intervention, improving measurement accuracy while keeping the system relatively simple

The patent applies preliminary action by performing calibration and determining reference data before actual distance measurements are taken. The system pre-determines signal strength characteristics at various distances and stores this reference information, so that when distance measurement is needed, the system can directly use these pre-computed values without requiring complex real-time calculations