Publication

Investigating Optimal Settings for Distance Calculation with a Low Frequency Low-Power RF system

Yves Perriard
2020
Conference Papers

Abstract

This paper focuses on the application of low power and low frequency Received Signal Strength Indication (RSSI) based localization system. The transceiver presented will wake-up by a modulated magnetic field that is emitted from the transmitter module. This enables the receiver to have low power consumption when not in the range of the transmitter. The goal is to provide an empirical relationship between the RSSI and the relative distance between two modules. To determine the optimal settings required to reliably and consistently obtain the RSSI.

Official source

https://infoscience.epfl.ch/entities/publication/ca56c0a1-5388-4ee1-9a03-a30eb3c1156f

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Yves Perriard
2020
Conference Papers

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/ca56c0a1-5388-4ee1-9a03-a30eb3c1156f

About this result

Related concepts (14)

Low frequency

Low frequency (LF) is the ITU designation for radio frequencies (RF) in the range of 30–300 kHz. Since its wavelengths range from 10–1 km, respectively, it is also known as the kilometre band or kilometre wave. LF radio waves exhibit low signal attenuation, making them suitable for long-distance communications. In Europe and areas of Northern Africa and Asia, part of the LF spectrum is used for AM broadcasting as the "longwave" band. In the western hemisphere, its main use is for aircraft beacon, navigation (LORAN), information, and weather systems.

Radio frequency

Radio frequency (RF) is the oscillation rate of an alternating electric current or voltage or of a magnetic, electric or electromagnetic field or mechanical system in the frequency range from around 20kHz to around 300GHz. This is roughly between the upper limit of audio frequencies and the lower limit of infrared frequencies. These are the frequencies at which energy from an oscillating current can radiate off a conductor into space as radio waves, so they are used in radio technology, among other uses.

Euclidean distance

In mathematics, the Euclidean distance between two points in Euclidean space is the length of a line segment between the two points. It can be calculated from the Cartesian coordinates of the points using the Pythagorean theorem, therefore occasionally being called the Pythagorean distance. These names come from the ancient Greek mathematicians Euclid and Pythagoras, although Euclid did not represent distances as numbers, and the connection from the Pythagorean theorem to distance calculation was not made until the 18th century.