Wireless data hotspots are the cornerstones for any wireless network application. The hotspots shown here are developed to the first prototype stage and transmit data wirelessly from a unit mounted on the ceiling to different devices, which in the first stage are connected to optical dongles. The typical transmission range is between 3 and 5 meters with a transmission speed of 1 to 5 Gbps. Devices have been manufactured in small series and can be purchased.
The hotspot can be connected to the server or the network either via optic fiber cable or via optical wireless data links. Included in the concept is motion tracking. If for example one of the devices shows above is moved to a different location, the IR laser beam will be automatically adjusted to the new position.
The data links are duplex, meaning both the unit on the ceiling as well as the computer are able to send and receive data.
The images shown illustrate one of the major advantages of optical wireless communication based on IR. Compared to RF communication, but also compared to VLC (visible light communication), the data stream is only there where it needs to be, and that is within a narrow beam between the communicating devices. This is a considerable security advantage, because access to this data communication is only possible within the laser beam. Reflections of the signals are so weak that they would not go far, for example outside a window.