The invention belongs to the field of
relay protection memory self-inspection, and particularly relates to a memory exception judging and positioning method,
system and device and a readable storage medium. According to the method, the row and column check values capable of representing the influence of the
single event upset are obtained through the check value of the memory data and the check value between the data, whether the
single event upset occurs or not can be judged only by comparing the row and column check values calculated in the
current period with the row and column check values calculated in the last period, reference to memory redundant
backup is not needed, and therefore extra memory is not occupied, and the
data processing efficiency is improved. The
utilization rate of equipment memory resources can be improved; even if the memory resources of the equipment are insufficient, the memory abnormity judgment and positioning of the
single event upset are not influenced; and after the single event upset of the memory is judged, the abnormal position can be quickly and accurately positioned according to the difference between the row
verification value and the column
verification value of the
current period and the previous period, the abnormal position is positioned without comparing the memory data and the
backup data, and the positioning accuracy can be improved while the abnormal positioning efficiency is improved.