can be easily values of related parameters SO that the values compared. It shall be a design goal that all data required to monitor any operation can be displayed on a maximum of two
Display data
be shall
time-tagged and identified by satellite and by telemetry encoder number.
screens.
Telemetry
data which violates
preset
limits shall be
flagged on the display.
5.3.2 Graphical Historical Displays
The system shall have the capability to plot telemetry data retrieved from data storage, plotting selected parameters versus time. Hard copy output is required and a CRT system is desirable. Operation of the plotting system with selection of parameters to be plotted and specification of scaling parameter, in engineering units, is to be under operator control. This function shall provide the capability to display any telemetry data which has been stored and archived.
5.3.3 Hard Copy Printing
5.4
type,
satellite,
The system shall provide the capability to list data, in The data to be engineering units, on a hard copy device. listed, specified by data
and time interval, shall be retrieved from the on-line and archived data storage
This system.
system
the shall provide capability to print any data which has been stored and archived.
Operator Interface
The operator interface includes all mechanisms, commands, messages, displays,
displays, etc., by which the operator obtains information from or enters control information into the system. The operator interface shall be designed with emphasis on human engineering.
Any operator command entry and system messages shall be formatted for clarity to minimize errors and the necessity to refer to manuals. If the operator command entry takes the form of an alphanumeric command string, the use of If menus alphabetic and keyword parameters is encouraged.
are used, the number of menu levels shall be minimized and a facility to return to a top level menu from a lower level menu by a single keystroke shall be provided.
The operator command system shall permit the interruption of one process to start another. The first process shall then be resumed at the point of interruption. For example,
it shall be possible to modify telemetry data acquisition parameters
the course of a satellite commanding procedure.
in
11
1
No comments yet.
Private notes are available after approval.