Task 1: Manual Control of Duqum Railway Gate Figure 1 depicts a gate controller for Duqum railway. In the figure, cars are allowed to cross the railway as long as the gate is NOT lowered, where the green light is lit for as long as it is safe for cars to cross. However, when a train approaches, the gate will be lowered and cars will not be allowed to cross until the train has passed the gate. There are two modes to control the gate: manual (using a switch) and automatic (periodic). The following tasks give more details about each mode. For the manual control of the gate, assume the following: The gate is controlled with a switch (Manual Switch). When Manual Switch is OFF (i.e. input = 0), then the green light will remain ON (i.e. output = 1) and cars are allowed to pass. ● When the Manual Switch is ON (i.e. input = 1), then there is a train approaching. When this happens, the green light is turned OFF (i.e. output = 0) and the red light will start to blink rapidly at a frequency of 4 Hz (make sure that the red light blinks TWO times per second). The red light will keep blinking until the Manual Switch is back to OFF. This is where the green light will be lit again and the red light will be OFF.
Task 1: Manual Control of Duqum Railway Gate Figure 1 depicts a gate controller for Duqum railway. In the figure, cars are allowed to cross the railway as long as the gate is NOT lowered, where the green light is lit for as long as it is safe for cars to cross. However, when a train approaches, the gate will be lowered and cars will not be allowed to cross until the train has passed the gate. There are two modes to control the gate: manual (using a switch) and automatic (periodic). The following tasks give more details about each mode. For the manual control of the gate, assume the following: The gate is controlled with a switch (Manual Switch). When Manual Switch is OFF (i.e. input = 0), then the green light will remain ON (i.e. output = 1) and cars are allowed to pass. ● When the Manual Switch is ON (i.e. input = 1), then there is a train approaching. When this happens, the green light is turned OFF (i.e. output = 0) and the red light will start to blink rapidly at a frequency of 4 Hz (make sure that the red light blinks TWO times per second). The red light will keep blinking until the Manual Switch is back to OFF. This is where the green light will be lit again and the red light will be OFF.
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
Section: Chapter Questions
Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...
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