Event/Action Service Design

<body topmargin=0 leftmargin=0 marginheight=0 marginwidth=0> <table cellpadding=0 cellspacing=0 border=0><tr> <td valign="top" colspan=2 height=110 BGCOLOR="#777777" TEXT="#080000"> <div> <B><IMG SRC="0097c660.gif" border=0 width="124" height="102" ALIGN="RIGHT" HSPACE="0" VSPACE="0"></B></div> <div> <FONT SIZE="6" COLOR="#FFFFFF" FACE="Arial" ><I><B>Event/Action Service Design</B></I></FONT><B> </B><B>     |     </B><A HREF="index.htm" TARGET="_top" TITLE="HighLevel Design Specification"><U><B>home</B></U></A></div> <div> <A HREF="id2.htm" TARGET="_top" TITLE="OBOSSII Architectural Design"><U>OBOSS-II Architectural Design</U></A>   |   <B>Event/Action Service Design</B>   |   <A HREF="id4.htm" TARGET="_top" TITLE="Large Data Transfer Service Design"><U>Large Data Transfer Service Design</U></A>   |   <A HREF="id5.htm" TARGET="_top" TITLE="Demonstrator Design"><U>Demonstrator Design</U></A></div> <div> </div> </td> </tr><tr> <td valign="top" width=210 BGCOLOR="#777777" TEXT="#080000"> <div> <A HREF="id8.htm" TARGET="_top" TITLE="Event/Action Component Design"><U>Event/Action Component Design</U></A></div> </td> <td valign="top" height=370 BGCOLOR="#FFFFFF" TEXT="#080000"> <div> <I><B>Description</B></I></div> <div> The service maintains a detection list of events, consisting of event report ID and application process ID pairs. An associated action status and action telecommand is stored for each event. The service autonomously listens to all event reports generated by the onboard system. When an event report generated by an application process matches an event in the detection list, and the associated action status is enabled, the action telecommand is executed.</div> <div> This service provides the onboard system the ability to autonomously detect and respond to events (i.e. anomaly or error reports) with pre-programmed telecommands.</div> <div> <I><B>Design</B></I></div> <div> A reusable software artifact has been produced implementing the event/acction service defined in 'Telemetry & Telecommand Packet Utilization' [<A HREF="index_pus__.htm" TARGET="_top" TITLE="HighLevel Design Specification"><U>PUS++</U></A>]. The reuse process is based on parameterisation.</div> <div> The design consists of a HRT-HOOD design focussing on interfaces and relations. The design diagrams may be found following the link to the left.</div> </td> </tr></table></body>