A handheld terminal is a data-processing terminal with an operating system (Android or WinCE) , memory, CPU, graphics card, screen and keyboard, data-transfer capabilities, and a battery that can be moved around for use. Generally speaking, handheld terminals are divided into industrial-grade handheld terminals and consumer-grade handheld terminals, industrial-grade handheld terminals in performance, stability, battery durability and so on due to the latter. With the development of the Internet of Things Technology, the handheld terminal is used as an information-based data acquisition and processing tool, has been widely used in fashion, retail, logistics, transportation, health care, manufacturing, energy, finance, government utilities and other industries, and plays a different role.