Logistics Refrigerated Truck refers to a special vehicle that transports perishable foods from one place to another place at a low temperature. It is an indispensable part of the cold chain. The refrigerated truck itself can maintain a certain low-temperature environment and can transport low-temperature foods. Cold chain transportation can be divided into two categories of primary agricultural products and processed foods according to the degree of food processing. Primary agricultural products include vegetables, fruits, meat, poultry, eggs, milk, aquatic products, and flower products; processed foods include frozen foods, packaged cooked foods such as poultry, meat and aquatic products, ice cream and dairy products, and fast food ingredients. Different foods have different temperature requirements for freshness, so the types of vehicles that need to be transported are also different.