The application scenario is shown in the figure below: the user utilizes an ECG-based wireless sensor (WiBoC Chipset), and transmit those signals to a mobile-phone device that has an embedded expert system integrated. With the aid of 3G system, a remote healthcare monitoring center receives those uploaded signals and stores into the application server. According to the events from this server, the people on service responses to the emergency and takes the corresponding process.

Inclusion Criteria:

• Emergency patient with chest pain.
• Emergency patients were implementation of 12-lead EKG during observation.
• Out-patient services of Cardiology with arrhythmia history.
• Adults over 20 years old.

Exclusion Criteria:

• The patient required the intervention of resuscitation and cardiac massage.
• Chest trauma
• On pacemaker

• Emergency patient with chest pain.
• Emergency patients were implementation of 12-lead EKG during observation.
• Out-patient services of Cardiology with arrhythmia.
• Adults over 20 years old.