Key isolation sensor for anti-stealing of smart meter in hardware enterprises

At present, most civil and commercial buildings in the United States are still tracking the use of electricity with old-fashioned electromechanical meters. These tables are reliable and inexpensive, but are not suitable for power distribution systems that require accurate, repeatable metering, and wired or wireless communication, in other words, are not suitable for the upcoming smart grid power distribution system.

Smart grids rely on smart meters with complete communication capabilities to monitor energy usage, enabling residents and business consumers to make informed decisions about energy usage and usage time. But the smart grid is also facing difficulties. Although Washington has passed relevant legislation on the federal government, such as the 2007 Energy Act and the 2009 stimulus plan, utilities are actually distributing electricity on a state-by-state basis. In the preparation of the smart grid, California and Texas are the two states that are most aggressively turning to smart metering.

Regardless of whether the smart grid can proceed smoothly and seamlessly in some form at the (US) national level, there are enough independent utilities to purchase and install electronic meters, making it an important market. In the next 10 years, global utility companies may have to replace 500 million meters.

The smart meter consists of a microcontroller with an onboard ADC and DAC, a voltage and current sensing component, an AC/DC power converter, a backup battery, and wireless or wired communication.

In addition to intelligence and communication capabilities, smart meters can also prevent tampering.

Several companies offer meter ICs, including Texas Instruments, ONSemiconductor, Maxim, AnalogDevices, Teridian, and e2v. These ICs are basically microcontrollers that track the use of power and the information returned from the utility. They can perform some DSP operations on the voltage waveform and quality, transfer the information to a display, and store the information to be sent. .

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Tag: Hardware Enterprise Isolation Sensor

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