Dynamic power positioning method and dynamic power positioning system thereof

A dynamic power positioning system for finding out a device location of a device to be measured in a space, wherein the space further comprises a plurality of known location devices, the dynamic power positioning system comprises:

• a processing module for controlling the device to be measured to transmit a plurality of positioning signals with a plurality of transmission powers, and making the plurality of known location devices to receive the plurality of positioning signals;
• a database electrically connected with the processing module and used for storing a signal intensity-distance function and a signal intensity-distance standard deviation function, and recording intensities of the plurality of positioning signals, corresponding reception times of the plurality of positioning signals, and coordinates of the plurality of known location devices after the plurality of known location devices has received the plurality of positioning signals, so that the processing module finds out a plurality of known location devices corresponding the plurality of positioning signals with higher signal intensities among the received plurality of positioning signals;
• and
• a computing module electrically connected with the database for finding out the device location of the device to be measured by querying the signal intensity-distance function and signal intensity-distance standard deviation function based on the intensities of the plurality of positioning signals, the corresponding reception times of the plurality of positioning signals, wherein the processing module obtains a plurality of probability distribution planes of the plurality of known location device with higher signal intensities at a plurality of different transmission powers according to the signal intensity-distance function and the signal intensity-distance standard deviation function, the computing module obtains a final probability distribution plane by multiplying the plurality of probability distribution planes with each other, and finds out a location having a maximum probability in the final probability distribution plane to be set as the device location of the device to be measured.