EMERGENCY – please need Help?

ahuhuhuhuhuhu… tomorrow I need to finish our project tomorrow waaa… its all about making a concept of a parking lot system meaning that i must make the concept of the whole system including switches, elevators, traffic lights etc… My god I am just 3rd yr COE but still i did’nt learned that much coz the instructors didn’t thought us that us that much… ahuhuuhu… I just got finished with thet traffic lights system with swiches… but damn.. the concept of an elevator is damn hard to understand… 1st I had a 12v DC motor damn…. i know how to set it on its position for lifting… but theirs problems i encountered

1st is that how could a manupulated the up n downs of the elevator
by switching its poles with only one switch..

2nd when the elevator reaches the top or down how could it switch
its power to off..

3rd and finally after being off at the top how could i lock it with out letting if fall from the top.

1st: you need a comutator switch
2nd: when it reaches the top it has to pass over a lever (stopper) or a magnetic sensor or a photo sensor, the same at the bottom; the device powers off the motor.
3rd: at the motor you provide a gear with oriented teeth and a device that de-locks the gear when moving down.

This entry was posted on Friday, October 2nd, 2009 at 4:30 am and is filed under traffic lights system. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.

2 Responses to “EMERGENCY – please need Help?”

tinkerbell on October 2nd, 2009 at 9:53 am

what?
References :
acatalinus on October 2nd, 2009 at 10:32 am

1st: you need a comutator switch
2nd: when it reaches the top it has to pass over a lever (stopper) or a magnetic sensor or a photo sensor, the same at the bottom; the device powers off the motor.
3rd: at the motor you provide a gear with oriented teeth and a device that de-locks the gear when moving down.
References :

Traffic-Sense And Road Awareness