1.In the early stage of industry development, domestic water meters were mostly traditional mechanical water meter products, which were calculated by the impact of water flow on the impeller, which was driven by the impeller for flow accumulation, and the water flow speed was displayed by the rotation of the dial pointer. Traditional mechanical water meters have disadvantages such as low measurement accuracy, high starting flow rate, easy wear of transmission components, weak anti-interference ability, and short service life due to their transmission through simple mechanical devices. In practical use, problems such as relying on manual meter reading and inability to control flow rate are also difficult to solve.
2. The coexistence stage of intelligent mechanical water meters and traditional mechanical water meters
Since 2003, with the gradual maturity of sensor application technology, remote communication technology, wireless radio frequency technology, and the implementation of policies such as one meter per household and tiered water pricing, intelligent mechanical water meters have emerged by installing electromechanical conversion devices on mechanical water meters. The intelligent mechanical water meter can realize the functions of data remote transmission, prepaid water, network valve control, etc., and with the mature application of relevant information technology, the product functions are gradually enriched, meeting the application needs of water supply management informatization to a certain extent, but its core measurement mode still uses mechanical motion devices, and there is no essential difference between the mechanical water meter and the mechanical water meter in measurement principle and measurement performance.
3. Electronic flow sensing technology begins to be applied in water meters
Since 2013, advantageous manufacturers in the industry have attempted to innovate measurement technology, abandoning the traditional impeller measurement technology of mechanical water meters, and applying electronic sensing technologies such as ultrasound, electromagnetic, and jet to the field of water measurement, forming electronic water meters based on electronic sensing technology. Compared to intelligent mechanical water meters, electronic water meters have excellent characteristics such as high measurement accuracy, no wear, small pressure loss, low initial momentum, and greatly improved metering performance; On the other hand, it can perform bidirectional flow measurement and has instantaneous flow display function. Through deep integration with modern communication technology, it can achieve real-time flow reading, pipeline leakage detection, online pressure monitoring, data mining analysis and other functions, better meeting the needs of modern urban intelligent water management.
