Patent ID: 7586928
Filing Date: 2009-09-08
Classification: H04L,H04Q

Abstract:
1. A process for deterministic transmission of asynchronous data in packets issued by acquisition and processing systems, in the field of data acquisition and telemetry of flight testing installations, comprising the following steps: storing numerical or digital telemetry data of the flight testing installation, conveyed on continuous and cyclic messages, issued by acquisition and processing systems which arrives in a totally asynchronous manner in FIFO registers, packeting data from said FIFO registers in a first set of packets, in a first packeting cycle, according to a predetermined order with sorting and enhancement of these data, in multiple, non-selfsustained packeting modules, receiving a request from the message composition module to the packeting modules when the message composition module needs a data packet; after sending of a request by the message composition module, which controls the packeting cycles, ending said first packeting cycle in said packeting modules, forwarding said first set of packets, regardless the state of completion of the first packeting cycle, to said message composition module, beginning a second packeting cycle for a second set of packets, recovering said first set of packets by the message composition module, one packet after the other in a predefined order, to form a first message, setting the first message in electrical format, in a formatting module, in a protocol used for the transmission to form an output message, outputting said output message, by the output module on a transmission line, said method allowing synchronization of the start and end of packets in relation to their transmission in the output message, the timing cycle of data between the storing step and the outputting step being therefore controlled.