Ventricular tachycardia detector and detection method thereof

The invention discloses a ventricular tachycardia detector and a detection method thereof. The detector comprises an active electrocardio-electrode, and a processing device communicating with the active electrocardio-electrode; the active electrocardio-electrode is clung to the heart of a human body and used for collecting an electrocardiosignal, adjusting and converting, sending in the processing device for detection processing, and then sending out a state signal. The active electrocardio-electrode consists of an electrocardio-sensor, an amplification filter, an analog-to-digital conversion module, a sending interface circuit and a first power supply circuit; and the processing device consists of a receiving interface circuit, a reference electrocardio-module, a ventricular tachycardia detection module and a second power supply circuit. According to the ventricular tachycardia detector and the detection method thereof, the miniaturized circuits with low power consumption are used for processing electrocardio-data, the circuits have strong functions, low power consumption and high reliability, and the ventricular tachycardia can be precisely detected according to shape of a probability density function curve of distances between two points of the electrocardiosignal subjected to phase-space reconstruction and characteristic parameter extraction by adopting a probability density function method.