Borges, Luís M.Barroca, NorbertoZamith, FernandoLebres, António Sérgio2025-01-282025-01-282009-09Luís M. Borges, Norberto Barroca, Fernando J. Velez and António S. Lebres, “Wireless Flex Sensor Belt Networks for Foetal Movement Monitoring in Low Risk Pregnancies,” in Proc. of IMEKO XIX World Congress - Fundamental and Applied Metrology, Lisbon, Portugal, Sep. 2009.http://hdl.handle.net/10400.6/15032In this work two flex sensor belts were produced to count the foetal movements in the last four weeks of pregnancy. While one is a standalone solution the other is a wireless flex sensor belt network one. A description of the type of sensors is followed by the discussion of the different types of acquisition and data treatment methodologies. The application to display the deformation angles is presented as well. The wireless sensor network solution is based on the IEEE 802.15.4 standard, and the hierarchical wireless network solutions include a Wi-Fi layer. Preliminary results highlight the need for accounting for mother respiration movements and actual experiences with pregnant woman will facilitate tuning the threshold-trigger, to improve the detection performance.engHierarchical Wireless CommunicationsWSANTele-medicineFoetal Monitoringconference object