TL32 Datasheet, PDF (4/31 Pages) List of Unclassifed Manufacturers – Real Time System Testing MIT 16.070 Lecture 32

Some Exception Handling Methods
Q: What if your system randomly misses data from a sensor?
A: Time tag your system data and use it only if the time tag has been
updated since the last time it was used.
Navigation Sensor Tasks
Sensor data
pools
Sensors
GPS
Lat, lon, alt,
time tag
Shared
Memory
Lat, lon, alt,
time tag
Data consuming
tasks
GPS data with time tag is written to shared memory
When other tasks come to read that data out of shared memory,
they can discard the data if the new time tag = old time tag.
hperry
5/4/01