RSSI Measurements to Achieve Mouse Localization in a Cage
Résumé
The need in biological telemetry relevance has been growing steadily for many years. A localization system, working in the SRD (Short Range Devices) frequency band of 863870MHz dedicated to the laboratory mice, is presented in this paper. It is constituted of a battery-less RFID tag implanted in a mouse phantom model, interrogated by an array of four cross printed dipoles used as emitting antennas connected to an external reader. The device is applied to a standard plexiglas rack cage for housing mice. The mouse phantom model localization in the cage is deduced from the Received Signal Strength Indication (RSSI) level measurements of each antenna. Four zones are defined, one for each antenna and the position is determined by the highest received RSSI level. Two cases have been considered depending if there is one or four phantom models present simultaneously in the cage. Results show a good correlation between the real positions and the RSSI levels obtained by the four antennas.
Mots clés
battery-less RFID tag
mouse phantom model
cross printed dipole array
frequency 863 MHz to 870 MHz
Phantoms
Mice
Dipole antennas
Antenna measurements
Receiving antennas
biomedical telemetry
dipole antenna arrays
microstrip antenna arrays
level measurement
radiofrequency identification
mobile computing
UHF antennas
received signal strength indication level measurements
RSSI level measurements
mouse localization system
biological telemetry relevance
SRD frequency band
short range devices frequency band