Interactive Presentation System (IPS)
Rear projection interactive
Principle and Features
IPS is based on the computer vision technology. When user pressing 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 physcial position of the finger on the projection screen into the 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 (e. G., 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.

The Attractness
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 user's 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.

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 hand's reach
2 meters distance between the projector and the screen
maximal 3 meters of the sensor's 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.

. Application field
1 Interactive Information Inquiry System
2 Public Transportation Information System
3 Information Inquiry System for hotels, office buildings and other venues
4 Interactive Digital Shop Window for departments and shopping malls
5 Information Inquiry System for Exhibitions
6 Intelligent large-screen monitor& control system for service departments
7 Guiding, Display and Information Inquiry System for flagship stores
8 Presentation System for meeting rooms
9 Multi-media Presentation System for Enterprise Showroom

System Parameters
Screen Dimension: 4:3, 16:9, 40inch-120inch ( >120inch should be ordered)
Accuracy: 5mm
Calibration: calibrated by driver programs
Sensitivity: adjusted by software
Operation System: Windows 2000/XP
Transparency: >90%
Temperature for working: -40degree~+70degree
Humidity: 0%~95%
Distance from sensor to screen: min:0. 5m; Max: 3m
Height from sensor to screen center: +/-1. 5m
Installation
The customer should provide a plan of the venue(or specific parameters) on the conclusion of the contract. Our company is responsible for the design and installation at the arrival of goods according to the customers'needs. To ensure good performance of IPS, please make sure that there is no strong light or high-power lamp near the front or the back of the screen.