Man-machine interface should have the following characteristics

The main functional features of human-computer interaction system are: multi-mode perception function and intelligent agent interaction function.

The network information interaction and retrieval ability based on knowledge dialogue has the human-computer interaction technology function of visual display in two-dimensional and three-dimensional virtual interaction environment.

Human-computer interaction system (HCI for short) is a technical science that studies the communication between people and computers through mutual understanding, completes information management, service and processing for people to the greatest extent, and makes computers truly become harmonious assistants in work and study.

The main functions of pin-type human-computer interaction system are: multi-mode perception function, intelligent agent interaction function, network information interaction and retrieval ability based on knowledge dialogue, and human-computer interaction technology function of visual display in two-dimensional and three-dimensional virtual interaction environment.

Compared with the traditional user interface, the most important change of the multimedia user interface after the introduction of video and audio is that the interface is no longer a static interface, but a time-varying media interface related to time.

Humans use language and other time-varying media (such as gestures) in a completely different way from other media. In terms of information presented to users, time-varying media are mainly presented in sequence, while visual media (words and graphics) that we are familiar with at ordinary times are usually presented at the same time. In the traditional static interface, users either choose from a series of options (explicit interface communication component) or interact in a recognizable way (implicit interface communication component).

In the user interface of time-varying pin media, all options and files must be presented in order. Due to the limitation of media bandwidth and people's attention, in time-varying media, users should not only control the content of information presented, but also control when and how to present it.

Main components of human-computer interaction system

1, multimodal input/output: multimodal input includes keyboard, mouse, text, voice, gesture, expression, gaze and other input methods; Multimodal output includes text, graphics, voice, gestures, expressions and other interactive information.

2. Visual synthesis: Human-computer interaction can be carried out in a simulated or virtual environment, just like the interaction between people in the real world.

3. Dialogue system: There are two main research trends, one is based on voice, and the other is based on a specific task domain, introducing the concept of dialogue management and establishing a man-machine dialogue similar to everyone's dialogue. Through this system, you can easily grasp the status information.

4. Knowledge processing: automatically extract organized and usable knowledge.

5. Intelligent interface agent: Intelligent interface agent is the medium to realize human-computer interaction.