My crond job doesn't work as expected, why?
There's a sudo in your script but are you sure that your current user has the permission to execute /home/q/tools/bin/restart_tomcat.sh without password authentication?
You should add the script to /etc/sudoers to allow your current user to execute the script without password, or you can just sudo crontab -e to run the script as root (and don't forget to delete sudo in your script if you do so).
If there is any other option, don't sudo in a cron job.
travelcoCheck.shwill be matched by thegrep travelcoand is not cancelled by thegrep -v grep, sowc -lwill be at least 1 always. Sorestart_tomcat.shwill not run.
(As a side note: whether or not your ps-parsing stack gets caught by ps is something of a dark art and is full of corner cases and race conditions and generally difficult to get to work right. Stuff like this is why dbus was invented.)