Intelligent devices (intelligent device) refer to any device, instrument, or machine with computing and processing capabilities. A fully - functional intelligent device must have sensitive and accurate perception functions, correct thinking and judgment functions, as well as effective execution functions. Intelligent devices are the products of the combination of traditional electrical equipment with computer technology, data processing technology, control theory, sensor technology, network communication technology, power electronics technology, etc.

　　Intelligent devices mainly include two key aspects: self - detection is the foundation of intelligent devices; self - diagnosis is the core of intelligent devices. An intelligent device is a highly automated mechatronic device. Due to its complex structure and important role in the system, high requirements are placed on the reliability of intelligent devices. The reliability index of electronic products is jointly determined by the reliability of components, technical design, process level, and technical management. To improve the reliability of products, it is necessary to master the failure laws of products. Only by comprehensively understanding the failure laws of products can effective measures be taken to improve the reliability of products.

　　Device categories

　　When computer technology becomes more and more advanced and inexpensive, various types of devices can be built. In addition to personal and handheld computers, there are also many intelligent devices, including medical instruments, geological equipment, household appliances, etc.

　　Device characteristics

　　The intelligence of the application platform of intelligent devices is reflected in the fact that the system composed of heterogeneous devices has the characteristics of context awareness, task migration, intelligent collaboration, and multi - channel interaction.

　　Context - aware applications can capture and analyze the relationships between multiple objects and respond. Device collaboration refers to constructing new combined services with richer functions by coordinating the services provided by different devices and integrating the functions of existing available services. Multi - channel interaction is a human - computer interaction method that uses multiple channels to communicate with a computer, where the "channel" refers to the communication method for users to express intentions, perform actions, or perceive feedback information.