1. Principle and Features: (in picture: Sensor projector server projection screen) IPS is based on the computer vision technology.
When user presses the finger on the screen, the image will be captured by the camera inside the sensor.
And then the driver program will analyze the image, recognize the finger and translate the physical position of the finger on the projection screen into a logical coordinate of the computer. Related mouse event will also be sent at the same time.
Therefore, it functions to open an interface, switch a scene and look up information by touching the screen with fingers or other finger-like objects. IPS is very adaptable to various environments; Unlike ordinary touching screen, it is not subject to natural conditions (eg., temperature, humidity) of the surroundings.
IPS can be equipped with screens of gradable sizes, distinguishing it from ordinary small-size touching screens. IPS has a long service life: Protected by a transparent glass cover, the projector will not be affected by normal touching.

2. The attraction: Featuring as a large screen, delicate pictures and vivid colors, IPS can provide users with in-depth information by its distinctive touching-and-inquiry function. Users can have total control of the computer by merely touching on the cover glass of the screen. Besides, there are no twisted wires within the users view, thus creating an air of mysterious magic. IPS involves the user to be the active inquirer, not the passive receptor. It will attract more attention by its user-oriented function and productive results. IPS is impressive by coupling both the roles of promoter and receptor.

3. Installation and Operation: The projector could be set on the ceiling of the roof behind the screen or placed inside a machine box together with the sensor and computer. It is also possible to integrate the whole system as an information kiosk station. Environment condition: 2-meter-high screen, within the hands reach; 2 meters distance between the projector and the screen; Maximal 3 meters of the sensors sensing distance; Enough ambient light in front of the screen. With the system, users can not only watch high-quality projection image, but also inquire certain information of his own interest by touching the glass cover surface. The system will display pre-set information automatically while it has been idle for a certain period, and switch into the interactive mode when it is touched.

4. Application field:
Interactive Information Inquiry System
Public Transportation Information System
Information Inquiry System for hotels, office buildings and other venues
Interactive Digital Shop Window for departments and shopping malls
Information Inquiry System for Exhibitions
Intelligent large-screen monitor control system for service departments
Guiding, Display and Information Inquiry System for flagship stores
Presentation System for meeting rooms
Multi-media Presentation System for Enterprise Sho