Project 1- Traffic Jam Assistant Feature

1. Root System:

Figure 1: Root System

1. The above figure is a model of a small part of logic of Traffic Jam Assistant System.
2. The model has two subsystems:
3. Voltage Subsystem
4. Display Unit subsystem
5. The figure has three inputs namely Input_Voltage, Input_Switch and Enable_Display and one output port Output_Display.

2. Voltage Subsystem:

Figure 2: Voltage Subsystem

1. The above figure represents the Voltage_Subsystem.
2. The Voltage_Subsystem has one input Input_Voltage and one output Optimum_Voltage.
3. The Input_Voltage signal is compared with two constants VOLTAGE_MINIMUM_RANGE & VOLTAGE_MAXIMUM_RANGE and the outputs of these two comparisons is given to a OR block.
4. The Input_Voltage must be greater than or equal to VOLTAGE_MINIMUM_RANGE OR less than or equal to VOLTAGE_MAXIMUM_RANGE.
5. The output OR block is Optimum_Voltage which is the output and this fed to the Display Unit Subsystem.

3. Display Unit System:

Figure 3: Display Unit Subsystem

1. The above figure represents the DisplayUnit subsystem.
2. The subsystem has three input ports, six constant blocks, a multiport switch block, switch block, logical operator blocks and one output port.
3. The constant blocks are ON_MODE, OFF_MODE, STANDBY_MODE.
4. The above constant blocks are given to the multiport switch block as inputs.
5. The Diagnostic for default case is set to warning and the data port order is set to Zero-based contiguous as shown in Figure 4.

Figure 4: Multiport Switch Setting

f. Interrupt_1 and Interrupt_2 is given to relational operator block.

g.No_Display block is given to the switch block as a second input.

4. Output:

Figure 5: Output

The above figure is the output of the model.