Development of a Non-Contact ECG Application Unobtrusive Embedded into a Bed

In this paper the authors publish a novel designed capacitive ECG system, which can be unobtrusive implemented into a bed. To avoid user rejection, the capacitive electrodes were designed flexible and with a large surface. In addition, the electrode surface is interfaced by a wire to the circuit boards, which increases the noise sensitivity. Therefore, the proposed so-lution focus on noise filtering and shielding for the novel de-signed electrodes. Already in the design of these electrodes is a special guard and ground design considered, which reduces the impact of noise. Furthermore, different settings of analog filters improve the signal quality in addition, which is proved by test measurements. These test measurements were compared be-tween each other regarding the different filter settings, in order to identify the most satisfying filter for future developments. Through using analog filters, a nearly real time data processing is possible. By the proposed application, the home security for heart diseases and for high aged can be improved, as well as of-fers different opportunities for sensor fusion in future.     «

In this paper the authors publish a novel designed capacitive ECG system, which can be unobtrusive implemented into a bed. To avoid user rejection, the capacitive electrodes were designed flexible and with a large surface. In addition, the electrode surface is interfaced by a wire to the circuit boards, which increases the noise sensitivity. Therefore, the proposed so-lution focus on noise filtering and shielding for the novel de-signed electrodes. Already in the design of these electrodes is a...     »