In industries such as aerospace, coal mine energy and military industry, public security, government and enterprises, emergency rescue, field operations, command and dispatch, etc., computers are required to collect and process on-site data, sometimes facing huge calculations and high-definition split-screen display and viewing. Dealing with the uncertainty of the workplace, and also requires a strong outdoor battery life. Ordinary laptops do not have dust-proof, drop-proof and high-strength processing functions. CESIPC has launched a three-screen reinforced portable belt machine for special industries.