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Linet network |
Home automation
Linet advantages - easiness of system installation and
use, robustness and reliability, low system cost - offer OEM's and system
integrators providing home automation systems lucrative business opportunities.
By summer 2002 Linet is the leading home automation control
network in Finland with 100's of systems sold.
In lighting control systems the advanced time division
protocol of Linet network is extremely useful, as any visible or random
delays, typical to peer-to-peer network based systems, do not exist.
The largest Linet-based lighting control system developed
so far (summer 2002) has more than 2000 I/O-points. The system is divided
into 16 Linet sub-networks, which are interconnected with Ethernet.
Linet is an ideal base for a lift control system. Linet nodes are used for linking lift call pushbuttons, displays and signs etc., while a Linet controller runs lift control algorithm, or the controller is connected to a lift control unit. Linet offers new business opportunities for companies producing marine electronics and control systems. Linet brings more features with less cables reducing unwanted weight, and makes this with smaller r&d effort and higher reliability than is possible with other network-based control systems. In railway coaches, Linet is a lightweight solution to control and monitor many low-level devices - lighting, windows, doors, etc. First such systems will be installed into 'Intercity' railway coaches by Finnish Rail during summer 2002. Linet is used as the base for various remote control systems
where a number of I/O's are to be accessed remotely - industrial temperature
loggers, estate boiler rooms, cellular base stations etc. Linet collects
the information locally and transmits the collected data over an IT network.
The state of all nodes in a Linet system (up to 200 I/O-points) can be
transmitted in a single Ethernet UDP data packet, which makes the data
transfer costs of the solution negligible. The leading Finnish ISP Sonera
uses Linet-based site supervisory systems to remotely hard-boot Internet
servers in their server farms. These systems also monitor temperature and
humidity of the location. The first system was taken in use in 1998 and
has been in continuous use since.
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