Position detecting system and method for electronic device

A position detecting system for an electronic device, for obtaining a current position of the electronic device changing its position continuously during test process, such that the electronic device starts or stops a test item accordingly, comprising:

• at least one position marker, disposed on a moving path, wherein the position marker has a signal emitter for emitting an uniquely identifiable position signal, and a frequency of the position signal falls in an range of an audio frequency;
• a position data table, stored in the electronic device, for recording the frequency of the position signal corresponding to different positions;
• a signal receiver, disposed on the electronic device, for receiving the position signal when moving to the position marker, and converting the position signal into an audio signal;
• an audio signal input module, disposed on the electronic device and connected to the signal receiver, for serving as an input port for an audio signal, and identifying and processing the audio signal to obtain the position signal;
• and
• a position detection software, running in the electronic device, for looking up the position data table according to the received position signal to obtain the current position of the electronic device.