I need help with a project..!! =X I have absolutely no clue how to do this especially drawing the logic diagram/circuit! AND I just need help with the N-S not the E-W
Figure 4-50 shows the intersection of a mainhighway with a secondary access road. Vehicle-detection sensors are placed along lanes C and D (main road) and lanes A and B (access road) These sensor outputs are LOW (0) when no vehicle is present and HIGH (1) when a vehicle is present. The intersection traffic light is to be controlled according to the following logic:
1) The East West light will be green whenever both lanes C and D are occupied.
2) The East West light will be green whenever either C or D is occupied but lanes A and B are not both occupied.
3) The North South light will be green whenever both lanes A and B are occupied but C and D and not both occupied.
4) The North South light will be green when either A or B is occupied while C and D are both vacant.
5) The East West light will be green when no vehicles are present.
I need the Boolean Expression which i go t ABD'+BC'D+ABC'+AC'D'.. is it right? and the LOGIC DIAGRAM!! please would someone help me? =/
Figure 4-50 shows the intersection of a mainhighway with a secondary access road. Vehicle-detection sensors are placed along lanes C and D (main road) and lanes A and B (access road) These sensor outputs are LOW (0) when no vehicle is present and HIGH (1) when a vehicle is present. The intersection traffic light is to be controlled according to the following logic:
1) The East West light will be green whenever both lanes C and D are occupied.
2) The East West light will be green whenever either C or D is occupied but lanes A and B are not both occupied.
3) The North South light will be green whenever both lanes A and B are occupied but C and D and not both occupied.
4) The North South light will be green when either A or B is occupied while C and D are both vacant.
5) The East West light will be green when no vehicles are present.
I need the Boolean Expression which i go t ABD'+BC'D+ABC'+AC'D'.. is it right? and the LOGIC DIAGRAM!! please would someone help me? =/