Addresses in certain ranges are “non-routable”, meaning the internet won’t work with those. These are private subnets. Anything in the range 192.168.0.0 to 192.168.255.255 cannot be accessed over the internet. This means your device is talking to a router, and it is the router itself which has the public routable address.
In order for such a thing to work from the outside world the router would have to be set up to forward the correct ports to that particular device. If this is a university router, then it is unlikely they are going to give you the admin access needed, nor would they be likely to set up specific ports to forward to your device. The only way to talk to the device would be with another device inside of the subnet.
It would be possible for you to pay for some sort of dynamic IP service. In that case your Jetson would have to connect to that, and then from the outside world you’d connect to the dynamic DNS service.