2 square millimeter sensor Internet of things era will have a chance

Original title: a little big sensor, can accelerate the arrival of the era of the Internet of things?

The Internet of things is not a new word, but to really enter this era, there is still a long way to go, and in this process, the battery problem is still a big problem. You should know that these devices themselves are small, and they contain a lot of electrical components, so they naturally can't keep up with the battery life.

Recently, however, there has been a new solution to this problem. Researchers in the Netherlands have invented a new type of sensor that is only 2 square millimeters in size and does not need to be powered by batteries or wires. It can use radio waves to power itself. It is called a "miniature wireless temperature sensor".

It is reported that the built-in antenna of this sensor can get electricity through the router, and once it gets enough power, it can do normal work, such as turning on the computer, measuring the temperature, and sending the signal to the router. There is no power supply and the size is quite small, so the modified sensor can be buried under paint, plastic and concrete without worrying about power outages.

However, at present, the effective working range of the sensor is still very small, less than 1 inch, so it cannot be used in practice for the time being. But now that this step has been sold, it is believed that with the efforts of the researchers, this kind of miniature wireless temperature sensor will play a great role in the future, and is expected to accelerate the arrival of the era of the Internet of things.