You can know the power consumption of each device by installing it on the wire

Tencent Digital (Compile: Hamish) Whether it is out of money or curiosity, you must be very much aware of the power consumption of each piece of electricity in your home. Now that there is such a small object that can meet our needs, it can tell you the exact power consumption of the electrical appliances, lamps and other equipment that you use in your home everyday.

A few days ago, the Massachusetts Institute of Technology and the United States Naval Research Institute jointly released a portable, inexpensive smart sensor system. The system consists of five stamp-sized sensors that can be operated simply by installing it on the house's wires. After installation, its built-in auto-calibration system can quickly collect sample data, identify the strongest electronic signals, and calculate the amount of electricity consumed by each consumer device.

Subsequently, these power consumption data will be aggregated to the matching application, so that the user can be reminded when the refrigerator should be defrosted and when the power of the water heater should be turned on or off.

Steven Leeb, professor of electrical engineering at the Massachusetts Institute of Technology, said in a statement: "We have been able to monitor the household's power consumption before, but this requires hiring a licensed electrician to shut down the entire line. Or install expensive professional equipment.Compared to that, you can use tethers or nylon buckles to fix our sensor system on the wire. It uses signal processing to measure power consumption. This method is better than traditional methods. It's fast, simple, and cheap. Also, when your home's equipment needs to be repaired or replaced, it will also remind you."

So, what is the price of this system? The researchers said that after the commercial application, the user only needs to spend 20 to 30 US dollars (about 138 to 206 yuan) to bring it home.

Because US naval researchers are also involved in this project, the sensor system has potential military applications. For example, it can help naval vessels save fuel and electricity consumption, allowing ships to travel farther. At present, the US Coast Guard has been testing the system to understand its actual performance in the maritime environment.

Judging from the current progress of this project, perhaps next Christmas you can buy it on the market.