"The team established material doping technology to greatly improve the piezoelectric properties of lead-free materials,successfully prepared MEMS lead-free triaxial piezoelectric accelerometers. The use of lead-free materials is the world＇s first development result. In addition, the team also integrated sensors, back-end circuitsuser interfaces, applied the acceleration gauge system to the safety monitoring of unmanned vehicles,successfully integrated the intelligent integrated sensingcontrol system required in the Internet of Things era."