There are three types of electric meters at home: traditional meters, IC card meters, and smart meters. The difference between smart meters and the other two kinds of meters is that they can be networked to achieve remote meter reading, and there are many ways to remote meter reading.
1. Internet of Things card
This is the most common way, smart meters have built-in iot cards. The iot card is similar to a regular SIM card, only it can't make calls, only data traffic. The iot card transmits information about the user's electricity consumption to the power supply company.
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After the electricity meter has a built-in iot card, through the APP or wechat public number, we can check our electricity consumption in real time, and we can pay in real time, and any problems will be reported in time.
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2, 485 bus to network cable
This method is mainly used in large buildings, connected to the collector through the modbus protocol (485 bus), the collector converted to TCP\/IP network signal connection network cable, directly connected to the meter reading server.
3. WiFi meter reading
This method is mainly for youth apartments, white-collar apartments, hotel apartments using WiFi meters, this meter as long as connected to the apartment's WiFi remote meter reading server, you can achieve remote meter reading.
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4, NB-Lot meter reading
With the arrival of the 5G era, the Internet of everything will be realized, and there will be NB-Lot meters, which is the real smart meter, which can directly read meters remotely through the NB-Lot network, with wider coverage and more stable operation.
In short, the family meter has experienced the traditional meter need manual door-to-door meter reading, to the IC card meter to the business point to buy electricity recharge, and then to the smart meter can be networked three stages, the next stage may be NB-Lot smart meter.