According to the general concept and characteristics of the system introduced by us, as well as the role and characteristics of logistics in the overview of logistics, we can see that we must study logistics activities with systematic theory and method, so as to better play the role of logistics in the national economy and realize the macro and micro economic benefits of logistics activities.
Logistics system is composed of various elements of logistics. There are organic relations between the elements and it has the function of rationalizing the overall logistics. Logistics system is a subsystem or component of social economy system. Specifically speaking, the logistics system refers to a certain time and space, which is composed of a number of interactive, interdependent and restrictive dynamic elements of material, energy, personnel and communication network (intelligence information) such as logistics products, packaging equipment, loading and unloading machinery, means of transportation, storage facilities, transportation roads, circulation processing and waste recycling facilities It is an organic whole with the functions of packaging, loading and unloading, transportation, storage, circulation and processing, waste recycling, and information collection, processing and sorting, and is in the environment of the whole national economic system.
In the field of circulation, logistics process can be regarded as a process system in which all logistics elements interact and depend on each other from production through circulation to consumption. In the field of production, the logistics process is an investment and output system that continuously invests in raw materials, machinery and equipment, labor force, and outputs to meet the needs of the society after processing; in terms of each link of the logistics process, it is also an investment and output system. Every link should absorb certain energy and resources (human, financial and material) from the external environment, and input them in the form of input. After conversion, certain products or services can be directly or indirectly produced, and then provided to the outside world in the form of output to meet certain social needs.
Therefore, the logistics system is still a cycle process of continuously importing elements from the environment, continuously exporting products or services after transformation, which is the basic mode of the logistics system.