4 ms·
The need to manually turn this system back on is non optimal. A control loop powered by a battery backup should have been able to reset the system once the volt
by ec109685 7y ago
The need to manually turn this system back on is non optimal. A control loop powered by a battery backup should have been able to reset the system once the voltage came back down.
- Animats 7y agoThis is a railroad signaling system. It's designed to fail safe, and that's not a buzzword. Any broken wire, go to red. Any broken relay, go to red. Any rail break, go to red. Loss of power, go to red. If you're getting power surges in signaling power, it's time to shut down, go to red, and not reset until someone has tested the system.
- ec109685 7y agoThe backup system can be programmed to do the same testing a human can to bootstrap the system. Another benefit is that they can simulate a surge in the system regularly and watch it recover itself versus a human running a checklist once every 10 years.