5results about How to "Achieve self-supply" patented technology

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.

The invention discloses a self-powered milk sterilization device and method based on magnetic coupling friction nanometer power generation. The device comprises a friction power generation system and a sterilization system. According to the invention, high-efficiency sterilization and safety adaptation are taken into consideration, and a miniaturized food scene is adapted: on one hand, a synergistic effect of combining electrostatic capture with point discharge electroporation is adopted, the inactivation efficiency on common pathogenic bacteria such as escherichia coli and staphylococcus aureus is greater than or equal to 99%, high-temperature treatment is not needed, and nutrient substances such as lactose and protein in milk can be completely reserved; on the other hand, the device is small in overall size, light in weight, capable of being directly connected into a milk conveying pipeline of a family or a small pasture, easy to operate and low in maintenance cost, meanwhile, all components making contact with milk are made of food-grade materials, leakage is prevented through cooperation with a sealing structure, secondary pollution is avoided, and the food safety standard is met.

The application provides a joint module fatigue test method and system for simulating wave force working conditions, and belongs to the technical field of motor performance testing. The method and system aim to solve the problems of existing test working condition simulation distortion and high energy consumption. The system includes wave energy absorption, power generation, energy storage, mechanical energy transmission, load adjustment and clutch, adaptive loading control and closed-loop testing modules. Wave energy is used in two ways, one for power generation to supply energy to the system, and the other for mechanical load conversion. The load adjustment and clutch module precisely adjusts the load and can cut off the load in abnormal conditions. The adaptive loading control module and the closed-loop testing module form a closed loop, dynamically adjust the load according to real-time data, and accurately reproduce random working conditions. The closed-loop testing module synchronously collects fatigue data and electrical, thermal and other performance parameters of the joint module, realizing collaborative testing.

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 discloses a self-powered wireless temperature sensing device and its power supply reliability assessment method. The self-powered wireless temperature sensing device includes a thermoelectric energy harvesting module, an energy management module, and a wireless temperature sensing node. The thermoelectric energy harvesting module converts the waste heat generated by the operation of the high-voltage disconnecting switch into electrical energy. The energy management circuit boosts the output electrical energy and stores the boosted energy using a supercapacitor, thereby achieving self-powering for the high-voltage disconnecting switch wireless temperature sensing device. Simultaneously, a neural network model is trained using the constructed self-powered wireless temperature sensing device to establish a power supply reliability assessment model. This model estimates the remaining charge of the energy storage element in the device under different high-voltage disconnecting switch operating conditions, determines the occurrence time of power failure, and effectively improves the operational reliability of the status monitoring device on the high-voltage disconnecting switch.