Library function calling method and device based on strip steel tracking system, and storage medium

The invention discloses a library function calling method based on a strip steel tracking system. The method comprises the following steps that: when a tracking signal corresponding to the tracking process of a rough mill is received, judging whether the tracking process is a first received tracking process or not; if the tracking process is the first received tracking process, setting a corresponding access flag bit for the tracking process to control the tracking process to call a library function; if the tracking process is not the first received tracking process, judging whether the accessflat bit is in the presence or not; if the access flag bit is in the presence, controlling the tracking process to enter a waiting state until the access flag bit is released; and if the access flagbit is not in the presence, entering the step of setting the access flag bit corresponding to the tracking process to control the tracking process to call the library function. By use of the method, when a plurality of trackin