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warning manhole cover / avoid the danger

warning manhole cover
warning manhole cover

The manhole covers will be flooded by the rain on rainy days. Many accidents might happen for the lost covers that are leaded by which the inner high air pressure.Using PZT deformation of the covers generats electricity for the orange warning lamp after missingthe covers. The orange may through something, so it can protect the safty of the people

University

Xihua University

Xihua University
Chengdu, China

Design

Xihua University

Xihua University
Chengdu, China

Xujiang Zhao Yao He Yueya Qu Jingwen Wang