How does the hotel intelligent guest control system connect with WeChat to control guest rooms with mobile phones?

A structure composed of multiple organs that can perform one or several physiological functions in a certain order is called a system.

The word system originated from the transliteration of the English system and should enrich the connotation of foreign languages. System refers to a comprehensive whole formed by orderly sorting and arranging scattered things.

In the theory of digital signal processing, people call the entity that can process and convert digital signals a system. Because the digital signal processing system processes signals at a specified time or time sequence, this system is regarded as discrete time, and can also be described by four methods: time-based language, table, formula and waveform.

In an abstract sense, both systems and signals can be regarded as sequences. However, the system is a mechanism for processing signals, which is different from signals. When people study the system, they need to design the system, use it to process signals and serve mankind, and the system needs other methods to further describe it. Symbols, unit impulse responses, difference equations and graphs are also used to describe the system.

Qian Xuesen, a famous scholar in China, believes that a system is an organic whole with specific functions, which is composed of several interacting and interdependent components, and this organic whole is a part of a larger system to which it belongs.