Early-warning countdown method based on IOS (Internetworking Operating System)

The invention discloses an early-warning countdown method based on an IOS (Internetworking Operating System), relating to an earthquake early-warning technique (called as an earthquake emergent report in Japan), aiming to provide the defects of the prior art. The technical key points of the invention are as follows: the early-warning countdown method based on the IOS comprises the following stepsof: with an early-warning client based on an IOS platform and multiple sound files recording countdown time-telling sound, (1) receiving earthquake early-warning information and countdown time M of an early-warning server distributed in a PUSH manner through the early-warning client; (2) invoking a countdown numbering-off point as a sound film M of the countdown time M distributed by the early-warning server by the early-warning client; and (3) regulating the countdown time information M by the early-warning server, and distributing the regulated countdown time information M in the PUSH manner after sound files invoked by the early-warning server and early-warning client synchronize countdown time for b seconds; and repeating the steps of (2)-(3) till the early-warning client counts down to 0.