| ??? 03/29/07 13:55 Read: times |
#136099 - Nothing new under the sun Responding to: ???'s previous message |
Russell Bull said:
With all the maintenance savings acheived, adding a gsm module with even some rudimentry current sensing circuitry, the traffic light could ET Phone Home when it does begin to fail. My contacts in the traffic signalling community tell me that is exactly what the latest signals and signs do. Traffic signals bristle with failsafe and monitoring systems, for obvious reasons, adding a GSM unit was an obvious step. Steve |
| Topic | Author | Date |
| Do green LEDs have worse reliability? | 01/01/70 00:00 | |
| Seems so... | 01/01/70 00:00 | |
| Hhm... | 01/01/70 00:00 | |
| My german isnt that good but..... | 01/01/70 00:00 | |
| various reasons | 01/01/70 00:00 | |
| then again... | 01/01/70 00:00 | |
| what I have seen ... | 01/01/70 00:00 | |
| What I've noticed | 01/01/70 00:00 | |
| get a failed unit | 01/01/70 00:00 | |
| Designing for failure | 01/01/70 00:00 | |
| Nothing new under the sun | 01/01/70 00:00 | |
And can your contacts confirm or deny... | 01/01/70 00:00 | |
| Government rules | 01/01/70 00:00 |