Design and Realization of Hand-Held Smart Electrothermal Umbrella Applied New Materials

Abstract:

In this paper, a new type of hand-held smart eletrothermal umbrella has been designed and realized. Bionic lotus leaf polymer film, which is hydrophobic, is applied as umbrella fabric. Based on micro controller unit STC12C5A60S2, the system starts work with temperature sampling of outdoor environment by temperature sensor chip DS18B20, when the temperature is lower than 10°C, high current half bridge chip BTS7970 drives the carbon- nanofiber- electrothermal -heating- film to work. Also, the system is equipped with manual -heating module. A LED light of caution stands on the top of the umbrella that can flicker following a regular pattern controlled by MCU. A LED highlight is mounted at the bottom of the hand handle in order to illuminate the ground at night. Additionally, a USB interface, which can provide 5V output, is reserved to charge exterior electric device. The whole system is powered by eight 18650 lithium batteries, when fully charged, they can support the system working 8 hours constantly. With a synthesis of aesthetic, pragmatic function which can be expanded, and high performance, this new type of umbrella enjoys broad market and perspective.

• Periodical: Advanced Materials Research (Volumes 605-607)
• Pages: 314-318
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.605-607.314
• Online since: December 2012
• Authors: Peng Gao*, Yan Ping, Gu Jing Han
• Keywords: Bionic Lotus Leaf Polymer Film, Carbon Nanofiber Electrothermal Heating Film, Self-Heating Hand Shank, Temperature Control

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