| ??? 05/16/07 06:48 Read: times |
#139303 - A suggestion Responding to: ???'s previous message |
Hi David,
I would offer a suggestion. Instead of elevating the barrier for just 10 seconds, and then lowering it again, I would suggest that you incorporate some sort of sensor to detect the presence of the vehicle under the barrier/arm, to ensure that the barrier/arm doesn't lower onto a slow or stalled vehicle. A simple PE (Photo Electric) beam would likely suffice. Just a thought, Joe |
| Topic | Author | Date |
| system to control the access to parking (barriers) | 01/01/70 00:00 | |
| Details... | 01/01/70 00:00 | |
| What restrictions do you have? | 01/01/70 00:00 | |
| Read The Post | 01/01/70 00:00 | |
| It's about the definition of barrier. | 01/01/70 00:00 | |
| And your point is ...? | 01/01/70 00:00 | |
| do not worry about your English | 01/01/70 00:00 | |
| Details | 01/01/70 00:00 | |
| Search for Parking Barrier | 01/01/70 00:00 | |
| And the rest | 01/01/70 00:00 | |
| It Depends..... | 01/01/70 00:00 | |
| how about just waiting for the OP instead | 01/01/70 00:00 | |
| A suggestion | 01/01/70 00:00 | |
| or would it...? | 01/01/70 00:00 | |
| "Interruption" | 01/01/70 00:00 | |
| i'll try to explain | 01/01/70 00:00 | |
| Is this a school assignment? | 01/01/70 00:00 | |
| Real or exercise? | 01/01/70 00:00 | |
| Next step | 01/01/70 00:00 | |
| is an exercise | 01/01/70 00:00 | |
ANSI C | 01/01/70 00:00 |