Aerospace and Electronic Systems Magazine August 2016 - 20
Design of Telecommand Software for the Mars Orbiter Mission
Figure 13.
Time required for MTcP software development.
Figure 12.
AOCE-TC setup for MOM.
with a test station which is simulating telemetry and other interfaces.
RESULTS
Time required for various activities in MTcP software development is shown in Figure 13. The entire software was developed in
one and a half years. The exact path to Mars is known to very few
people. Therefore, it was very difficult to finalize the requirements.
Apart from that, testing of auto-changeover under various mission
scenarios was challenging. The fault injection was a difficult part
of testing when most of the interfaces are asynchronous in nature.
Table 2 gives the time line for the development of MTcP software in MOM. The MTcP software was developed with high priority, as the launch window for launching the Mars Orbiter spacecraft was in October-November 2013.
Table 2.
Time Line for MTcP Software Development
Development activities
20
Date started
(dd-mm-yyyy)
Date completed
(dd-mm-yyyy)
Number
of days
MTcP Software requirements specification review
01-03-2012
05-04-2012
36
MTcP software design
06-04-2012
02-09-2012
150
MTcP software design review
03-09-2012
30-09-2012
28
MTcP software coding
01-10-2012
15-11-2012
45
MTcP software testing by designers
16-11-2012
10-12-2012
26
Incremental design review for design changes
(based on testing by designers)
11-12-2012
15-12-2012
5
Incremental testing for the design changes by
designers
16-12-2012
01-01-2013
17
Testing of software by quality assurance division
02-12-2012
12-03-2013
101
Incremental design review for changes in design
(based on QA observations)
06-03-2013
12-03-2013
7
Incremental testing of software by quality assurance
division
13-03-2013
20-03-2013
8
Clearance for Programmable Read-Only Memory
fusing by Subsystem Review Board
21-03-2013
21-03-2013
1
MTcP software fused
22-03-2013
22-03-2013
1
IEEE A&E SYSTEMS MAGAZINE
AUGUST 2016
Table of Contents for the Digital Edition of Aerospace and Electronic Systems Magazine August 2016