Method and system for predicting spare part demand quantity of electronic voting component

The invention provides a spare part demand prediction method and system for electronic voting parts, and belongs to the field of calculation of spare part demand of voting parts, and the method comprises the steps: initializing the total number of spare parts and the initial spare part guarantee probability to be 0; when the task of the electronic voting component is finished, all spare parts are consumed, and a first electronic part unit is in a fault state after consuming the last spare part, calculating a first spare part guarantee probability that the number of the electronic part units capable of working is greater than or equal to the acceptable minimum number of working units; calculating the probability that all the electronic part units work normally when the task of the electronic type voting part is finished; calculating a total spare part guarantee probability; when the total spare part guarantee probability is smaller than the spare part guarantee probability index, the total number of spare part