11. A context inference system, comprising: a mobile device, comprising: a information receiving unit, receiving at least one context information; and a context operation platform, coupled to the information receiving unit and performing a context inference process, the context operation platform comprising: an information collection module, collecting an information used for inferring a context; a data classification and storage module, storing and classifying a user preference information of a user; an inference module, inferring the context; and a service request module, obtaining a service information; at least one information sending unit, transmitting the at least one context information to the mobile device, wherein the at least one information sending unit is mounted on at least one object, and the at least one context information is a related information of the at least one object; and a remote server, providing the service information, the remote server comprising: a service information classification and storage module, classifying and storing a content regarding the service information; and a management data module, managing the service information classification and storage module; wherein the context operation platform performs the context inference process based on the context information, the service information, and a user preference information in order to forecast a need of the user and provide a recommendation information to the user.
11. A context inference system, comprising: a mobile device, comprising: a information receiving unit, receiving at least one context information; and a context operation platform, coupled to the information receiving unit and performing a context inference process, the context operation platform comprising: an information collection module, collecting an information used for inferring a context; a data classification and storage module, storing and classifying a user preference information of a user; an inference module, inferring the context; and a service request module, obtaining a service information; at least one information sending unit, transmitting the at least one context information to the mobile device, wherein the at least one information sending unit is mounted on at least one object, and the at least one context information is a related information of the at least one object; and a remote server, providing the service information, the remote server comprising: a service information classification and storage module, classifying and storing a content regarding the service information; and a management data module, managing the service information classification and storage module; wherein the context operation platform performs the context inference process based on the context information, the service information, and a user preference information in order to forecast a need of the user and provide a recommendation information to the user. 23. The context inference system according to claim 11 , wherein the mobile device further comprises a hotkey for turning on the information receiving unit to receive the at least one context information.