![Tools/Software :
Xilinx ISE Project Navigator 14.4 - Xilinx ISE (Integrated Synthesis Environment) is a
software tool produced by Xilinx for synthesis and analysis of HDL designs, enabling the
developer to synthesize ("compile") their designs. The Xilinx ISE is primarily used for circuit
synthesis and design.
iSIM simulator- ISIM or the ModelSim logic simulator is used for system-level testing.
Language used:
Verilog- Verilog is a Hardware Description Language; a textual format for describing electronic
circuits and systems. Applied to electronic design, Verilog is intended to be used for verification
through simulation, for timing analysis, for test analysis (testability analysis and fault grading)
and for logic synthesis.
Literature Survey
Traffic light controller is a set of rules and instructions that drivers, pilots, train engineers, and
ship captains rely on to avoid collisions and other hazards. Traffic control systems include signs,
lights and other devices that communicate specific directions, warnings, or requirements. Traffic
light controller (TLC) has been implemented using verilog HDL[7]. It has many advantages over
other with reference to the speed, number of input/output ports and performance which are all
very important in design. This paper concerns with a design implementation of an advanced
traffic light controller system that was built as a term project of a VLSI design subject using
VHDL. The system has many advantages over the other exciting Traffic Light Controller. The
VHDL code is being used in order to implement the design and the simulation is being tested
using the ISim Simulator. It is easy to use and the cost for the same is also less as compared to
the others.](https://image.slidesharecdn.com/trafficlightcontrollerwithverilog-180702105543/85/Traffic-light-controller-with-verilog-4-320.jpg)
![Application & impact on society
The modern ways of multi way traffic management improves the traffic condition upto a large
extent.Advanced signaling controllers contribute to the improvement of the urban traffic which is
proportional to the complexity of the controller. Advanced signaling controllers contribute to the
improvement in the traffic condition; and also the prevention of the road accidents. This
implementation of four junction traffic light controller can challenge any complexity in the
traffic.
Suggested guides- Mrs. Poonam Yadav
Mrs. Priyanka Chauhan
References-
[1] Z. Yuye and Y. Weisheng, “Research of Traffic Signal Light Intelligent Control System
Based On Microcontroller,” 2009 First International Workshop on Education Technology and
Computer Science.
[2] FPGA Design Tutorial, Copyright © 1-CORE Technologies, 2004-2009. [Online]. Available:
http://www.1-core.com/library/digital/fpga-design-tutorial/quick-startguide.shtml
[3] P. P. Chu, “FPGA Prototyping by VHDL Examples-Xilinx Spartan-3 Version,” John Wiley
and Sons, 2008
[4] ISE 9.1 In-Depth Tutorial, Xilinx Inc. Copyright 1995-2007. [Online]. Available:
http://download.xilinx.com/direct/ise9_tutorials/ise9tut.pdf
[5] Programmable Logic Design (Quick Start Handbook), Xilinx Copyright 2002-2006, Online].
Available: http://www.xilinx.com/ publications/products/ cpld/logic_handbook.pdf
[6] J. M. Lee, “Verilog Quick Start,” 2nd Edition, 1998.
[7] Aamir Raza, Arun Kumar and Ekta Chaudhary,”Research Paper”, “TRAFFIC LIGHT
CONTROLLER USING VHDL”
Available at : https://www.ijmter.com/papers/volume-4/issue-4/traffic-light-controller-using-
vhdl.pdf](https://image.slidesharecdn.com/trafficlightcontrollerwithverilog-180702105543/85/Traffic-light-controller-with-verilog-5-320.jpg)
Traffic light controller with verilog
- 1. Synopsis Of Industrial Project on “Four Way Traffic Control System” Bachelor of Technology In Electronics and Communication Engineering Submitted by Ameesha Singh (1509531007) Chetan Dabral (1509531012) Mahatma Gandhi Mission’s College of Engineering and Technology, Noida Affiliated to Dr. A.P.J. AKTU Lucknow
- 2. Title The traffic in road crossings /junctions is controlled by switching ON/OFF Red, Green & Amber lights in a particular sequence. It plays more and more important role in modern management and control of urban traffic to reduce the accident and traffic jam in road. It is a sequential machine to be analyzed and programmed through a multistep process. Abstract Traffic lights are the signaling devices used to manage traffic on multi-way road. These are positioned to control the competing flow of the traffic at the road intersections to avoid collisions. By displaying lights (red, yellow and green), they alternate the way of multi-road users. The implementation of traffic Light Controller can be through a Microcontroller, Field Programmable Gate Array or Application Specific Integrated Circuit. While the microcontrollers use the c programming languages, the ASIC and FPGA use the hardware description languages I.e., Verilog, system Verilog or VHDL. FPGA implementation is advantageous over ASIC and microcontroller; number of IO ports and performance compared to microcontroller and implementation with FPGA is less expensive compared to ASIC design. The code that we have used in this project can be used to program the FPGA Spartan kit, but due to unavailability of the kits we would be only simulating this on the Xilinx project navigator 14.7 Methodology There are different techniques for design entry. Schematic based, Hardware Description Language and combination of both etc. Selection of a method depends on the design and designer. If the designer wants to deal more with Hardware, then Schematic entry is the better choice. When the design is complex or the designer thinks the design in an algorithmic way then HDL is the better choice. Language based entry is faster but lag in performance and density. Another method but rarely used is state-machines. It is the better choice for the designers who think the design as a series of states. But the tools for state machine entry are limited.
- 3. A general four road structure which consists of north, east, west and south directions each with a set of three lights namely green, yellow and red. Green light in a direction will be ON when left, straight and right side is set to be free for traffic in that direction. Figure 1.1 Structure of Road Figure 1.2 Algorithm for traffic light system
- 4. Tools/Software : Xilinx ISE Project Navigator 14.4 - Xilinx ISE (Integrated Synthesis Environment) is a software tool produced by Xilinx for synthesis and analysis of HDL designs, enabling the developer to synthesize ("compile") their designs. The Xilinx ISE is primarily used for circuit synthesis and design. iSIM simulator- ISIM or the ModelSim logic simulator is used for system-level testing. Language used: Verilog- Verilog is a Hardware Description Language; a textual format for describing electronic circuits and systems. Applied to electronic design, Verilog is intended to be used for verification through simulation, for timing analysis, for test analysis (testability analysis and fault grading) and for logic synthesis. Literature Survey Traffic light controller is a set of rules and instructions that drivers, pilots, train engineers, and ship captains rely on to avoid collisions and other hazards. Traffic control systems include signs, lights and other devices that communicate specific directions, warnings, or requirements. Traffic light controller (TLC) has been implemented using verilog HDL[7]. It has many advantages over other with reference to the speed, number of input/output ports and performance which are all very important in design. This paper concerns with a design implementation of an advanced traffic light controller system that was built as a term project of a VLSI design subject using VHDL. The system has many advantages over the other exciting Traffic Light Controller. The VHDL code is being used in order to implement the design and the simulation is being tested using the ISim Simulator. It is easy to use and the cost for the same is also less as compared to the others.
- 5. Application & impact on society The modern ways of multi way traffic management improves the traffic condition upto a large extent.Advanced signaling controllers contribute to the improvement of the urban traffic which is proportional to the complexity of the controller. Advanced signaling controllers contribute to the improvement in the traffic condition; and also the prevention of the road accidents. This implementation of four junction traffic light controller can challenge any complexity in the traffic. Suggested guides- Mrs. Poonam Yadav Mrs. Priyanka Chauhan References- [1] Z. Yuye and Y. Weisheng, “Research of Traffic Signal Light Intelligent Control System Based On Microcontroller,” 2009 First International Workshop on Education Technology and Computer Science. [2] FPGA Design Tutorial, Copyright © 1-CORE Technologies, 2004-2009. [Online]. Available: http://www.1-core.com/library/digital/fpga-design-tutorial/quick-startguide.shtml [3] P. P. Chu, “FPGA Prototyping by VHDL Examples-Xilinx Spartan-3 Version,” John Wiley and Sons, 2008 [4] ISE 9.1 In-Depth Tutorial, Xilinx Inc. Copyright 1995-2007. [Online]. Available: http://download.xilinx.com/direct/ise9_tutorials/ise9tut.pdf [5] Programmable Logic Design (Quick Start Handbook), Xilinx Copyright 2002-2006, Online]. Available: http://www.xilinx.com/ publications/products/ cpld/logic_handbook.pdf [6] J. M. Lee, “Verilog Quick Start,” 2nd Edition, 1998. [7] Aamir Raza, Arun Kumar and Ekta Chaudhary,”Research Paper”, “TRAFFIC LIGHT CONTROLLER USING VHDL” Available at : https://www.ijmter.com/papers/volume-4/issue-4/traffic-light-controller-using- vhdl.pdf