The invention discloses an electrocardiosignal collector which comprises an electrocardiographic lead, a
voltage conversion device, an electrocardio collection
chip, an
audio frequency modulating unit and an
audio frequency interface. The electrocardiographic lead is connected with the electrocardio collection
chip. Electrocardio signals are detected to be input into the electrocardio collection
chip. The electrocardio collection chip conducts
analog front end amplification on the input electrocardio signals, low-frequency
simulation signals are formed to be output to the
audio frequency modulating unit. The audio frequency modulating unit conducts high-frequency modulating on the low-frequency
simulation signals and outputs the low-frequency
simulation signals. An electrocardiosignal collector is connected with the audio frequency input end of an external device through the audio frequency interface. The
voltage conversion device is connected with the audio frequency interface, and
voltage is generated according to input of the external device to supply power to the electrocardiosignal collector. The audio frequency modulating unit is connected with the audio frequency interface to output the modulated electrocardio simulation signals to the external device. According to the electrocardiosignal collector, the audio part of an intelligent terminal is fully utilized, collection and transmission of electrocardiosignals are completed, the
hardware complexity of the collector is minimized, and the cost of the collector is lowered effectively.