2results about How to "Achieve self-supply" patented technology

This invention relates to a triboelectric bearing, an in-situ monitoring system for operational status, and a method for manufacturing the same. The triboelectric bearing comprises a bearing body and a semiconductor coating. The bearing body includes a conductive stationary ring, a conductive moving ring, and a conductive roller. The conductive roller is located between the conductive stationary ring and the conductive moving ring. At least one of the conductive stationary ring and the conductive moving ring serves as a substrate. The semiconductor coating is disposed on the substrate. The conductive roller contacts the semiconductor coating to generate a direct current when it moves relative to the semiconductor coating. Alternatively, the conductive roller serves as the substrate, the semiconductor coating is disposed on the substrate, and both the conductive stationary ring and the conductive moving ring contact the semiconductor coating and generate a direct current when they move relative to the semiconductor coating. The triboelectric bearing of this invention not only possesses the mechanical functions of a traditional bearing but also achieves self-powered and in-situ monitoring characteristics, effectively solving problems such as limited sensor installation space, the need for external power supply, and high maintenance costs in bearing monitoring technologies.

This invention relates to a wind speed and direction measuring device, comprising a mounting assembly, a wind speed measuring assembly, a wind direction measuring assembly, and an energy storage device. The mounting assembly includes a mounting plate and a base located below the mounting plate. Multiple columns are connected between the upper surfaces of the mounting plate and the base. The wind direction measuring assembly is mounted on the mounting plate. The wind speed measuring assembly includes a main shaft. The base has a first cavity. The upper end of the main shaft is rotatably mounted on the mounting plate, and the lower end of the main shaft passes downward through the upper side wall of the base and is rotatably mounted on the bottom side wall of the first cavity. Multiple blades are mounted on the side wall of the main shaft between the mounting plate and the base. Multiple actuating plates are provided on the outer side wall of the main shaft inside the first cavity. Multiple mounting plates are evenly mounted on the peripheral side wall of the first cavity, and piezoelectric elements are mounted on the mounting plates. A first circuit board for measuring wind speed is also installed inside the first cavity, and the first circuit board is electrically connected to some of the piezoelectric elements. This invention enables the wind speed and direction measuring tool to be self-powered, has high stability, and saves costs.