Real Time Processing of ECG Signal on Mobile Embedded Monitoring Stations Ondrej Krejcar dept. of Measurement and Control Centre for Applied Cybernetics Technical University of Ostrava, Faculty of Electrical Engineering and Computer Science Ostrava, Czech Republic ondrej.krejcar@remoteworld.net Dalibor Janckulik, Leona Motalova, Karel Musil dept. of Measurement and Control Technical University of Ostrava, Faculty of Electrical Engineering and Computer Science Ostrava, Czech Republic {Dalibor.Janckulik, Leona.Motalova, Karel.Musil}@vsb.cz Abstract— The paper presents a problem of Real Time processing of ECG signal from patients by mobile embedded monitoring stations. Two ECG measurement devices were used in real tests. A two ECG channel bipolar ECG CorBelt and a 12 channels ECG device BlueECG. Both devices are products from CorScience Company. Due to a problem of processing a 12 channels ECG from ECG device by Bluetooth to mobile stations, the problem of packet parsing was discussed and two possible solutions were focused on. Another important part in biomedical data processing is visualization. A Windows Presentation Foundation solution was presented and tested. Mobile embedded monitoring stations are based on Microsoft Windows Mobile operating system. The whole system is based on the architecture of .NET Framework, .NET Compact Framework, .NET Micro Framework and Microsoft SQL Server. The project was successfully tested in real environment in cryogenic room (-136 O C). Keywords-ECG; measurement; visualization; biotelemetry; mobile I. INTRODUCTION Aim of the platform for patients’ bio-parameters monitoring is to offer a solution providing services to help and make full health care more efficient without limitations for specific country. Physicians and other medical staff will not be forced to make difficult and manual work including unending paperwork, but they will be able to focus on the patients and their problems. All data will be accessible almost anytime anywhere through special applications designated for portable devices web browser or desktop clients and any changes will be made immediately at disposal to medical staff based on the security clearance. Physicians will have immediate access to the patient’s newest results of accomplished examinations. In the case that the ambulance have to go to some accident, rescue team can due to portable devices send information about patient health condition directly to hospital where responsible doctors and staff will have information needed to execute immediate operation without delaying by preparation of necessary equipment. All bio-signals data are stored and automatically analyzed by neuronal network. System can evaluate presence of critical values which could be the sign of worse medical condition of a patient. In the moment of crossing the border of monitored bio-signals values predefined by doctor, system will inform responsible medical staff and provides all information which could help to determine the cause and seriousness of the problem. Figure 1. Architecture of Guardian II platform. The basic idea is to create a system that controls important information about the state of a wheelchair-bound person (monitoring of ECG and pulse in early phases, then other optional values like temperature or oxidation of blood etc.), his situation in time and place (GPS) and an axis tilt of his body or wheelchair (2axis accelerometer). Values are measured with the existing equipment, which communicates with the module for processing via Bluetooth wireless communication technology. Most of the data (according to heftiness) is processed directly in PDA or Embedded equipment to a form that is acceptable for simple visualization. Two variants are possible in case of embedded equipment – with visualization and without visualization (entity with/without LCD display). Data is continually sent by GPRS or WiFi network to a server, where they are processed and evaluated in detail. Processing and evaluating 2010 Second International Conference on Computer Engineering and Applications 978-0-7695-3982-9/10 $26.00 © 2010 IEEE DOI 10.1109/ICCEA.2010.177 107