Online water meter fault alarm system

The invention provides an online water meter fault alarm system which is applied to a water affair pipe network and comprises a plurality of water flow metering devices, a plurality of water flow monitoring devices, a judgment device, an alarm device and a cloud server. According to the technical scheme, the false zero-degree abnormal working condition of a metering water meter can be effectivelymonitored, so that the false zero-degree abnormal working condition can be discovered and discriminated and loss can be prevented in time; fault identification and remote alarm are carried out based on association of water flow dynamic information and water meter metering, so that water loss of a water supply party due to metering stop of the water meter can be effectively eliminated or reduced, unnecessary dispute contradiction between the water supply party and a water consumption party can be avoided, and economic effect and social effect of water supply are guaranteed; and meanwhile, waterflow dynamic information