A lost child tracking management server 100 for storing and managing missing child information and a missing child image file; And a ray drive management server 200 capable of communicating with a ray drive app installed and executed on the user computers 300, respectively, wherein the ray drive app is a cloud managed by the cloud storage management server 400 Collaborate with the application program so that the user image file stored in the storage 500 can be expressed as a drive and a file by the file system of the user computer 300, The lost child tracking management server 100 transmits the image file of the missing child to be tracked to the ray drive management server 200, and the ray drive management server 200 receives data from the lost child tracking management server 100-the image file of the missing child -While transmitting to each of the ray drive apps running on the user computers 300 to request a missing child tracking, the ray drive management server 200 receives the missing child tracking result from at least one of the ray drive apps, received A personal storage-based missing child tracking system is disclosed that transmits missing child tracking results to the missing child tracking management server 100.
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