Research On Smart Artifact Transportation Monitoring System Based On Triboelectric Nanogenerators

Artifacts are irreplicable treasures of human culture,and transportation monitoring is critical for safeguarding valuable artifacts against damage during culture exchanges.However,current collision-monitoring technologies have limitations in regard to real-time monitoring,cushioning protection,and power supply requirements.These limitations make them difficult to adapt to the demands of the Internet of Things(Io Ts)era.In this paper,we propose a smart artifact monitoring system(SAMS)based on a porous carbon black(CB)/Ecoflex triboelectric nanogenerator(PCE-TENG).The system can monitor collisions in real time and provide additional cushioning protection for artifacts inside transport cases.The main research contents of this paper are as follows:(1)The porous CB/Ecoflex was fabricated by the sacrificial monohydrate citric acid(CAM)template method,the surface morphologies and mechanical properties were characterized.The porous CB/Ecoflex can be further assembled with the serpentine structure flexible printed circuit board(FPCB)to form a selfpowered pressure sensing unit PCE-TENG.(2)The electrical output of the PCE-TENG has been improved by optimizing the content of CB powder,the mixing mass ratio of CAM to Ecoflex.It has a pressure sensitivity of 1.96 V/k Pa(<15 k Pa),a response time of 135 ms and excellent voltage stability under 20000 cycle tests.(3)Six PCE-TENGs,an integrated circuit board with multi-channel signal acquisition,processing and WIFI transmission,and a monitoring terminal constructed the SAMS,which is capable of providing real-time wireless collision-monitoring in different directions,cushioning protection,and safe status confirmation for artifacts.Over all,PCE-TENG achieves both cushioning shock absorption and pressure sensing in the same device.Based on the PCE-TENG,we have developed a SAMS to enhance the protection of artifacts in the smart transportation monitoring systems,which provides a novel and practical strategy for artifact transportation monitoring and package engineering.