準(zhǔn)確率=確認(rèn)有故障輛（件）數(shù)/預(yù)報(bào)故障輛（件）數(shù)×100%
兌現(xiàn)率=處理故障輛（件）數(shù)/預(yù)報(bào)故障輛（件）數(shù)×100%
使用率=系統(tǒng)探測列數(shù)/通過列數(shù)×100%
