Researchers in the United Kingdom have announced a new type of power generation device developed by them. They can use the activity of people walking on the knee to generate electricity and can power electronic devices that they carry. This invention has broad application prospects in military and other fields. .

Researchers from the University of Cranfield and other institutions in the United Kingdom published a research report in the new issue of Smart Materials and Structure that the prototype device currently being developed has a power of about 2 milliwatts, but its power is further improved. It can exceed 30 milliwatts, which is enough to power some portable electronic devices, such as heart rate monitors, electronic pedometers, and new UK-developed devices that can use knee-generating GPS positioning devices.

This device is in the form of a circular disk and contains a central shaft and an outer ring about which it can rotate. It is bound to the knee position, and with the change of the angle between the thigh and lower leg when walking, the outer ring will rotate around the central axis, causing some of the special devices to generate electricity.

Researcher Michel Pozi said that prototypes are now being developed. If they can be put into practical use and large-scale production in the future, the cost of each of these devices is expected to drop below £10.

This device is of high practical value to soldiers who often carry electronic equipment, and helps soldiers to reduce their dependence on the battery, thus reducing weight and walking more easily. Therefore, this study was also funded by the British military. (Reporter: Huang Xin)

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