A Novel Approach on Conventional Bluetooth Sensor System in the Medical Genre

Abstract

In this paper, three different Bluetooth sensor systems have been designed and estimated for transmission of biomedical sensor data by replacing their cables for different transmissions. Depending upon the monitoring situation and signal character three sensor architectures are built on 1-chip, 2-chip and 3-chip solutions. The essential parameters for all systems have been low physical weight and small size, resistance to interference and interoperability with other technologies as global- or local networks, mobile phones and PC’s. Two different biomedical input signals, ECG and PPG (photoplethysmography), have been used to evaluate the three solutions. In this project, it is possible to transmit an continuous analog signal. The 1-chip solution is the most suitable for monitoring the heart rate with PPG at low sampling rates and slowly varying parameters offering low power consumption and thus a longer battery lifetime or a smaller battery and also minimizing the weight of the sensor system. If a higher sampling rate is required, as an ECG, the 3-chip architecture, with a FPGA or micro-controller, offers the best solution and performance. Bluetooth™ might be useful in replacing cables of medical monitoring systems.