Американское военное ПО
Yet, despite all of this, the navigational software on the $3B warship is far less capable any maps app on your phone. The software, called "Voyage Management System" (VMS), is the hub of all the ship's planning and serves as its real-time navigation system. But it can't even do basic safety-of-ship alerting.
You want to try and dive down to 350FT even though the seafloor is at 300FT? No problem, VMS will let you do that with no alerting, even though it knows both the ship's depth and the seafloor's depth.
VMS is the hub for all this planning on the submarine. The navigation team takes the waterspace coordinates and manually inputs them into VMS. Then, they build their navigation plans ("nav plans") using the software. These plans have three elements:
Location - What is the latitude/longitude?
Depth - What are the minimum and maximum operating depths?
Time - When is the submarine to be at its location and depth?
What happens if a team gets the plan wrong? Well, if they set the maximum operating depth deeper than the seafloor, a grounding happens. Let's cover how we prevent this from happening. Hint: VMS is of no help.
Submariner looks over a set of depth markers on the map, noting which is the shallowest.
Zooms to another portion of the assigned waterspace.
Waits for VMS to load the next screen, which can take minutes.
Reviews the set of depth markers on the map, noting which is the shallowest.
Repeat.
VMS looks close to this. Now find the shallowest depth!
If you zoom in or out, VMS can take minutes to load. This would be the equivalent of scrolling in your maps app and waiting minutes for it to do something. And not like 2-3 minutes--load times could be like "take a coffee/smoke break" long.
Essential UI elements could just stop working. The cursor might just freeze up at the worst possible times.
When the software crashes, the error messages were unhelpful and required decoding by shore offices. Submarines often go long periods of not communicating with shore offices due to operational requirements.
https://fixvms.com
You want to try and dive down to 350FT even though the seafloor is at 300FT? No problem, VMS will let you do that with no alerting, even though it knows both the ship's depth and the seafloor's depth.
VMS is the hub for all this planning on the submarine. The navigation team takes the waterspace coordinates and manually inputs them into VMS. Then, they build their navigation plans ("nav plans") using the software. These plans have three elements:
Location - What is the latitude/longitude?
Depth - What are the minimum and maximum operating depths?
Time - When is the submarine to be at its location and depth?
What happens if a team gets the plan wrong? Well, if they set the maximum operating depth deeper than the seafloor, a grounding happens. Let's cover how we prevent this from happening. Hint: VMS is of no help.
Submariner looks over a set of depth markers on the map, noting which is the shallowest.
Zooms to another portion of the assigned waterspace.
Waits for VMS to load the next screen, which can take minutes.
Reviews the set of depth markers on the map, noting which is the shallowest.
Repeat.
VMS looks close to this. Now find the shallowest depth!
If you zoom in or out, VMS can take minutes to load. This would be the equivalent of scrolling in your maps app and waiting minutes for it to do something. And not like 2-3 minutes--load times could be like "take a coffee/smoke break" long.
Essential UI elements could just stop working. The cursor might just freeze up at the worst possible times.
When the software crashes, the error messages were unhelpful and required decoding by shore offices. Submarines often go long periods of not communicating with shore offices due to operational requirements.
https://fixvms.com