Method of assigning network addresses in an in-flight entertainment system
First Claim
1. A method of assigning a network address to each wireless device of a network in an aircraft, said wireless devices being able to exchange messages with a network server via at least one access point, each wireless device being placed in a position of a seat in a column of seats and powered by a power supply column specific to the associated column, wherein said method comprises the steps of:
- sequentially powering-up wireless devices, for each column of seats, with a time delay of known duration between the powering-up in one column and the powering-up in a next column;
each one of the wireless devices sending a corresponding message to a network server, the corresponding message having a time indication specific to the wireless device, the sending of the corresponding message triggered by the powering-up of the corresponding wireless device;
the network server receiving the corresponding messages from the wireless devices and time stamping each of the corresponding messages with a corresponding timestamp based on an instant at which each of the messages is received;
the network server identifying a column of seats of each of the wireless devices based on the time indication specific to the wireless device and the corresponding timestamp.
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Accused Products
Abstract
In an in-flight entertainment system implementing a wireless link between a network server S and wireless processing units SDBi,j which each serve the individual devices of a plurality of seats GSi,j of one and the same row, an identification i of the column in which a wireless processing unit SDBi,j is positioned is carried out by providing for a sequential powering-up (PWi-on) of the columns, the powering-up of a column coli triggering at this instant known to the server the boot process BP for the devices SDBi,j of this column, enabling the column to be identified i by a local duration measurement bi,j supplied by an internal clock DTi,j of these devices previously initialized at a known instant of the boot process BP.
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Citations
9 Claims
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1. A method of assigning a network address to each wireless device of a network in an aircraft, said wireless devices being able to exchange messages with a network server via at least one access point, each wireless device being placed in a position of a seat in a column of seats and powered by a power supply column specific to the associated column, wherein said method comprises the steps of:
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sequentially powering-up wireless devices, for each column of seats, with a time delay of known duration between the powering-up in one column and the powering-up in a next column; each one of the wireless devices sending a corresponding message to a network server, the corresponding message having a time indication specific to the wireless device, the sending of the corresponding message triggered by the powering-up of the corresponding wireless device; the network server receiving the corresponding messages from the wireless devices and time stamping each of the corresponding messages with a corresponding timestamp based on an instant at which each of the messages is received; the network server identifying a column of seats of each of the wireless devices based on the time indication specific to the wireless device and the corresponding timestamp. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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Specification