Many places are now using prepaid meters, and the pay-later model is popular.  But do you know how a prepaid meter works?  Prepaid electricity meter adopts electronic technology to realize information transmission function, so what is the benefit to our life?  Today editor will introduce it in detail  "How do prepaid meters work and what are the benefits?"

I. The working principle of prepaid electricity meter  

        Using electronic technology, the load voltage and current sampling signal, through 16-bit A/D conversion into digital signal processing, calculate the voltage, current, power, Complete the measurement of single-phase electric energy.  At the same time, the A/D converter generates power pulses to the CPU counting channel.  CPU through a variety of operations to complete time-sharing measurement  And other management work and information transmission functions.  

        IC card prepaid meter power off principle, the microcontroller in the meter plays a very important role in reading the data in the IC card, when the balance of the IC card is insufficient, The microcontroller will give the load control switch under the command, the built-in switch is disconnected, directly power off.  

II. The benefits of prepaid electricity meter  

1. Convenient payment  

        In addition to the original payment at business outlets, self-service payment machines and financial institutions, prepaid smart meters have been upgraded according to the wechat public platform of China Southern Power Grid Corporation, Methods such as Alipay wallet, mobile wechat and unified integrated service platform of China Southern Power Grid Corporation save more time and effort.  Tiandong's electricity consumption can be based on the above Service items query their power consumption, and immediately carry out prepayment/pay utilities, to ensure that there is a "degree" in the heart of electricity consumption, pay the heart of "number "!  

2. Intelligent warning information  

        When the balance of customer's prepaid account is equal to or lower than the alarm threshold of 60 yuan or 30 yuan, the system software will automatically send information prompt;  When a customer's prepaid utility bill is below zero (i.e., the deduction), The system software will push the short message notification of power outage of deduction fee at 9:00 every morning, and automatically turn off the power at 10:00.  After the customer loses power due to the deduction, he successfully pays the deduction and prepays the utilities. You can repair the power system automatically.  

3. Data information is fully transparent  

        Prepaid smart meters are remote controlled communications that collect real-time data on electricity consumption based on the bottom pressure collection system software, and the operator cannot change the electricity consumption And other important data information, reasonably prevent the manual service of water meter will appear errors and omissions, save the water and electricity bill carry forward stage, data information is more accurate, more detailed information content, Feedback more immediate, practical operation more convenient.