1 Light Based Pacing System for OIT Track Project Proposal Prepared for: Dr. Feng Shi Electrical Engineering and Renewable Energy Associate Professor & Program Director Oregon Institute of Technology Prepared by: Kai Miles Electrical Engineering Undergraduate Student Oregon Institute of Technology EERE Department Image credit: Landel, S. Athletes running with Wavelight technology [Photograph]. World Athletics. https://worldathletics.org/news/feature/wavelight-technology-athletics June 4 th, 2025 2 June 4 th, 2025 Dr. Feng Shi, Associate Professor Electrical Engineering and Renewable Energy Department, Oregon Institute of Technology 3201 Campus Dr. Klamath Falls, OR 97601 Dear Dr. Shi, Enclosed is my unsolicited project proposal for a light-based pacing system for Oregon Tech’s track and field facility at Moehl Stadium. This project would take the form of a senior project for myself. As such, I have included my designs, an implementation timeline, and a cost analysis for this project, in such a case as it is approved. I have also analyzed the specific design requirements brought on by the track facility of Oregon Tech and present within this report my ideas for how to overcome them. This project is important to me as I am not only an electrical engineering undergraduate, but also an athlete on our school’s track team. This sort of system is only used at the highest level in track and field, but as a technical institute, I believe we have a unique opportunity to create such a system for our athletes and students to enjoy. Thank you for taking the time to read this proposal and for considering my project. I am eagerly awaiting your response and truly hope that you will consider working with me to make this project a reality. Any input that you have would be greatly appreciated and I would be willing to make changes to my project if you believe it will be necessary to get this project approved. Sincerely, Kai Miles kai.miles@oit.edu 3 Light Based Pacing System for OIT Track Project Proposal Prepared for: Dr. Feng Shi Electrical Engineering and Renewable Energy Associate Professor & Program Director Oregon Institute of Technology Prepared by: Kai Miles Electrical Engineering Undergraduate Student Oregon Institute of Technology EERE Department June 4 th, 2025 4 TABLE OF CONTENTS Page # 1) ABSTRACT ..........................................................................................................6 2) INTRODUCTION..................................................................................................7 a) Proposal Description.................................................................................7 b) Proposal Scope.........................................................................................7 c) Proposal Format.......................................................................................7 3) BACKGROUND....................................................................................................8 a) What is WaveLight?...................................................................................8 b) Benefits for Athletes..................................................................................8 c) Benefits for the School..............................................................................9 4) PROBLEMS TO BE SOLVED...................................................................................9 a) Segmented Rail.........................................................................................9 b) Diverging Paths: Steeplechase.................................................................10 c) Lack of Power Sources Inside Track..........................................................11 5) PROPSED DESIGN.............................................................................................11 a) Power System.........................................................................................11 i) Photovoltaic Power System...........................................................1 2 ii) Klamath’s Weather Effects on Solar Cells......................................12 b) Variable Speed Control (Pace Setting)......................................................1 3 c) Avoiding the Gaps...................................................................................1 4 d) Complete System....................................................................................1 5 6) COST OF MATERIALS.........................................................................................15 7) IMPLEMENTAION TIMELINE................................................................................1 6 8) CONCLUSION...................................................................................................1 7 9) REFERENCES....................................................................................................1 8 5 LIST OF ILLUSTRATIONS Page # Table 1. “Frequency Change Over Points” .....................................................................13 Figure 1. Oregon Tech’s Track Facility............................................................................10 Figure 2. “Losses attributable to snow in the winter of 2010/2011, the different shaded bars represent a different module manufacturer or surface treatment” .................................12 Figure 3. Big Dome 20mm LEDs Green Product Package Dimension..............................1 6 6 Abstract This document serves as my unprompted project proposal for a potential senior project that I want to take on. It details my project, which is creating and implementing a lightbased pacing system, often called a “WaveLight system”, at the Oregon Tech track. This would be controllable and would allow for the time per lap and number of laps to be chosen by the operator. I will start by explaining the benefits such a project would bring to the athletes at Oregon Tech and to the school itself. My proposal then outlines the background of this technology, and the specific issues that the OIT track creates for this project. Namely, the removable nature of the rail, the lack of power sources at the track, and the different paths different races take on the track. I also go over my proposed solutions to those issues, my complete design idea, an implementation timeline, and cost of the project. With all of those included, this proposal should be adequate to start the next steps required to get this project off the ground. 7 Introduction In this project proposal, I will outline my idea for implementing a WaveLight pacing system at the OIT track facility. I will explain the benefits of such an implementation, my designs for such a system, and the logistics of cost and time that this project would take. Proposal Description This project aims to implement a WaveLight pacing system at Oregon Tech’s track in the form of a senior project for myself. Through this proposal I seek to gain permission and approval for this project and for support once said project actually begins. I am willing to amend aspects of this proposal as needed to get this project approved, but this proposal contains my desired design and implementation ideas. Proposal Scope This project is designed to be a senior project and should not take more than a year to complete. In this proposal, I will present my current design ideas, a tentative schedule, and an initial budget. However, these are all subject to change upon implementation as I may find my first designs insufficient, or roadblocks may change the timeline or cost of implementation. As such this proposal will not contain a definitive list of materials, and the implementation timeline is loose with only a few fixed dates. Proposal Format This report will contain the following major sections that will be covered in depth in the main body of this proposal. • Background • • • Problems to be solved Proposed design Cost of materials • Implementation timeline 8 Background I feel it is important to cover why I want to see a WaveLight pacing system implemented, but firstly I will clarify what that system even is. Additionally, I want to explain some of the reasons why I specifically want to implement this type of system. What is WaveLight? WaveLight is the name of the recently popularized system that describes a light-based pacing system. In essence, a WaveLight pacing system, or just WaveLight, is a series of L.E.D.s installed on the interior rail of a track that glow one after another at a pace that the operator decides. These are most generally called a light-based pacing system, but I will be referring to it as “WaveLight” or a “WaveLight system” because that is the specific model I wish to emulate in this project. These started being developed in the 1970s, but didn’t see high profile use until 2020. This was the year when the WaveLight system was first allowed to be used in professional track meets by the World Athletics organization (Landells, 2020). Several world records have already been set with the use of WaveLight, including the men’s 10,000m, the men's 5,000m, and the women’s 5000m (Taylor et al., 2021). Benefits for Athletes There are several reasons that such a presentation would be appreciated by the track athletes here at Oregon Tech. The primary reason for this is that Oregon Tech sits above 4,000 feet of elevation. This has an adverse effect on long distance running, as running is an aerobic exercise, meaning it uses oxygen. But at higher altitudes, the air is less dense, thus every breath a runner takes will provide them with less oxygen and thus reduces their running potential and the perceived effort of running at the same pace compared to at sea level (Hollings et al., 2011). This makes Oregon Tech a less desirable location for teams to compete in as if they are not accustomed to higher altitudes; they will find it increasingly difficult to run long distance races well here. This is in large part because of the increased effort of running at the same pace here at elevation. However, it becomes easier to maintain hard paces if the runner has something or someone to pace them with, so they only need to follow the pace, not set it themselves. Furthermore, consistent paces lead to faster times, as shown by a study published in the Journal of Sports Sciences, Christian Theil et al. (2012) compared the speeds of the 2008 9 Olympic finals of the long-distance races to the available data of the respective world records of each event. They found that the world records were set at much more consistent speed than the Olympic finals had, and the times in the finals were correspondingly slower. All this to say is that a pacing system at OIT would encourage more teams to come and compete so they could run faster races set by the pacing system. Benefits for the School By implementing this project, Oregon Tech would gain an example of exceedingly rare technology at its track. There are no schools on the west coast and part of NAIA that have a light-based pacing system on their track. This would make Oregon Tech one of a kind, which could help attract other schools to seriously compete at the track meets that our school hosts. More schools competing here means more money for the school as those teams must pay to compete and more people could lead to more sales at concessions. This means that this project could pay for itself once it is up and running. And furthermore, a light-based pacing system at Oregon Tech fits with the school’s goals of facilitating and displaying student excellence and hands-on experience. Having a project such as this will make OIT look more appealing to potential students by highlighting the hands-on experience that Oregon Tech advertises. Additionally, the project would make the school more appealing to track athletes, which helps with student retention as athletes are more likely to complete their degree. PROBLEMS TO BE SOLVED In this section, I will outline the unique features of Oregon Tech’s track that create problems for a WaveLight system that must be addressed by my design. As the track was just recently renovated three years ago as of the time of this report, there is a rail in good condition that would function as a perfect fastening point for the system’s L.E.D.s. However, the structure of the rails and lack of power access to the rails creates the largest problems to be addressed. Segmented Rail The railing on the interior of the track is not one continuous 400-meter-long strip of metal. Rather, it comes in pieces roughly five meters long that fit together and have stakes that fit 10 into the track. This in itself is not an issue as the WaveLight system I am proposing would be removable as well, only propped up against the rail for structure and support. However, an issue would arise during competition; there are two instances where certain portions of the rail are removed during competition. These being for the high jump and steeplechase. On figure 1 on the following page, I have highlighted the affected areas. Blue represents the segments that are removed commonly. The green markings will be discussed later in the Diverging Paths section. High jump removes the rail on the west side of the track so athletes can get a long enough run up to the matt. Steeplechase removes the rail because the runners must run an alternate route inside the east side curve to reach the water pit. Both situations require obstructions to be cleared and having a string of L.E.D.s in the way after the rail has been removed would simply not be acceptable. As such, my design must accommodate these gaps, while still allowing for the L.E.D.s to light up on the rest of the track. Figure 1: Oregon Tech’s Track Facility Note. Edited photo from Apple Maps Diverging Paths: Steeplechase In addition to opening two gaps on the rail, when the steeplechase is run another problem emerges. The race cuts inside the east side of the track, meaning it doesn’t follow the 11 standard lap shape or distance. Each lap of the steeplechase is actually 396.23 meters long at Oregon Tech’s track. This means that my design needs to accommodate the alternate route for the steeplechase, which would require additional L.E.D.s to stay on the secondary rail that follows the steeplechase route as well as a method of selecting which route the lights should take on the controls. Lack of Power Sources Inside Track Of course, this system will need to be powered somehow, but this problem is not the simplest to solve. There are no power outlets found in the field in the interior of the track, which is where this system must be located. This is because any power chords crossing the track would be a tripping hazard and as such are out of the question. This means that the controls must be inside the track, and power cannot be drawn from a source outside the track such as the press box above the stands. To solve this problem, I must implement a power source on the interior of the track. A simple option could be to make the system battery powered, however large batteries would be needed, and this would create recurring upkeep costs as new batteries would need to be purchased regularly. Ideally, this could be solved with a renewable power source, such as a solar power bank. PROPSED DESIGN My proposed design integrates several systems to address the problems discussed in the Problems to be Solved section. It uses a solar panel generator for power, wireless communications, and 500 L.E.D.s to allow for consistent pacing around OITs track despite the design challenges. Power System As a way of avoiding drawing any extra power or putting any power cords across the track, I want to implement a photovoltaic power generator and power bank. Such a power system would not cost any extra money to power as it could power itself. As Oregon’s Capital of Sunshine, Klamath Falls has uniquely advantageous photovoltaic power generation with 300 days of sunshine a year. 12 Photovoltaic Power System As designing my own solar powered power bank would be a complex prospect that could easily be expanded into its own senior project, I would prefer to look at purchasing a solar powered generator with a power bank. There are many options that can provide over 100 volts and 200 watts while only costing $200 or even less. Additionally, I could look at designs for DIY designs that cost less with only a minimal amount of assembly, if necessary. Klamath’s Weather Effects on Solar Cells Even though Klamath Falls has 300 days of sunshine per year, it also has a considerable amount of snowfall in the winter. While this is a concern to winter operation, remedies can be taken, such as by setting up the solar panels at an angle to reduce the buildup of snow (Andrews et al. 2013) as showcased by the graphs below. Figure 2: “Losses attributable to snow in the winter of 2010/2011, the different shaded bars represent a different module manufacturer or surface treatment” (Source: Andrews et al) As shown by Figure 2, snow cover that accumulates on top of solar panels can lead to a loss of up to 3% over the year on flat solar panels. As the angle of the solar panel is increased, the power loss decreases. This is due to the snow being able to fall off or slide down the panel, exposing more panels to the sun. As my system would only use a single solar panel which would only be a few square feet wide, it would be easy to clear in the 13 wintertime, assuming it is used at all as the track competition season occurs during the spring. Variable Speed Control (Pace Setting) The most important part of this project is the system that controls the speed of the lights flashing, as that is the whole point of the project. Choosing the pace at which the lights flash requires a control panel that can affect the number of laps that the lights will flash, and the time it will take for the lights to go around a lap. It should also be able to change between steeplechase laps and normal laps. That last part could be easily achieved by using a pushbutton attached to a flip-flop state machine that could swap between signals to act as modes. To achieve speed control of the lights, I plan to create a circuit that implements a variable clock signal generator, inspired by the system presented by Singh et al. (2024) at their 2024 IEEE International Symposium on Smart Electronic Systems conference. Their panel, titled “A Method of Variable Frequency Clock Generation” displayed their design for a variable clock frequency generator that can produce different frequencies of clock signals to send to the L.E.D.s at different speeds. This is achieved with a multiplexer that can easily swap signals with another switch. The table of frequencies from their panel is shown below in Table 1. Table 1: “Frequency Change Over Points” (Source: Singh et al) The different frequencies offered by this type of system should allow for a wide range of options to swap between while the circuit is in operation. These frequencies should allow 14 for the different speed of signals needed to control how fast the lights will complete a lap around the track, which is the main function of the system. Avoiding the Gaps To address the issues of gaps in the track by the high jump pit, I wanted to implement a wireless communication system. This would require a secondary control system for the short stretch of track in the middle of the west end curve of the track. However, after researching this path, I determined that such a system would not be feasible for me to implement. This comes down to the fact that this would split my pacing system into two separate circuits: a main one that covers most of the track, and a small one that covers the few meters between the high jump runway openings. This would require another power source to be attached to the smaller circuit. This would also require advanced systems of Bluetooth, or some other method such as the L.E.D. based wireless system I was initially inspired by from the Journal of Lightwave Technology (Yang et al. 2022). This system would use a series of L.E.D.s that would flash between circuits to transfer information between different circuits. This would substantially increase the testing phase and make errors in operation far more likely. It would also likely not work due to the extensive distance that the gaps in the track rail have. To address the issue of the gaps in the rail, I would have the wire run around the high jump pit area, run back through the middle of the high jump to the rail and back the same way before continuing back to the rest of the rail by the discus ring. I would put into the wire resistors with the same resistance as the L.E.D.s with as many as would be in the rail if the gaps did not exist to simplify the calculations for the speed of the lights. This way I can treat the system as if there were no gaps in the lights. Unfortunately, this will leave small sections of the rail without any lights, but they are small enough sections that I do not think will affect the use of the system. For the steeplechase gap, I would have two strings of L.E.D.s that can be plugged into the main string. One would continue around the normal track, while the other stays along the steeple pit. To swap between, simply plug the main string into the path desired. The plugged string will be where the circuit is completed, and the non-plugged string will not affect the circuit as it would be an open circuit. It would be like how you can plug extra strings of Christmas lights together with male and female receptors at the ends of the 15 strings of lights. This would mean there would be two strings of 100 L.E.D.s on the east end of the track. Complete System My complete system would be composed of 500 L.E.D.s connected in series that would be able to be propped up to the existing inner rail at Oregon Tech’s track. It would run around the high jump pit and through the center to avoid the gaps in the west curve of the track, and then back around to the discus ring. It would continue before continuing to the steeplechase opening on the east side of the track, where a plug would allow a choice between paths that the L.E.D.s would follow. This will all be controlled by a control system with push buttons variable resistor dials that control the speed the lights will complete a lap in, how many laps they will complete, and if they will make normal laps or steeplechase laps. COST OF MATERIALS The cost of this project would come entirely from material costs as I would be the one providing all the labor for assembly and installation. This will not include costs such as the cost of maintaining the school’s labs which I would use, along with standard materials that the school provides in its lab such as solder. I am only going to include the extra costs of items that would need to be bought specifically for this project. My design requires 500 L.E.D.s to line the 400-meter track, with an extra 100 to run along the steeple pit. Fortunately, L.E.D.s are cheap to buy in bulk. I found a good style from Electronix Express for $0.08 per part pictured on the following page, which is $40.00 for 500 of them. The wiring would raise the price considerably as I would need 500 meters of wiring to cover the whole track, which would cost around $630 to get that much wiring with insulation for being outdoors. A campsite solar power generator could be bought for about $200, which should be enough to power this system. Finally, the control system could be housed in a 3D printed case, and the circuit components such as logic gates and shift registers that will be housed in the control system should come out to be about $5 as all those components are a few cents per part as well as the school already having several of those components. 16 Figure 3: Big Dome 20mm LEDs Green Product Package Dimension (Source: Electronix Express) This brings the total cost to $875.00, which is a rough estimate. If this is too much for a standard project, I am willing to work on ideas that will lower the cost such as by making the system battery powered or by removing the extra 100 meters for the steeplechase laps. I would rather not limit the functionality of the system, but I understand the limitations that budget constraints may bring. IMPLEMENTAION TIMELINE As this proposal is for a senior project idea, it would not start in earnest until the fall 2027 term, which is my current projection for my senior year. Since I have already had this proposal prepared, I would ideally be approved to start implementation as soon as possible. Ideally, by week two or three of that term. Durning this approval time, I could 17 breadboard miniaturized proof of concepts for my circuit designs to prove that my theory of operation is correct. The initial set of materials and components should all be ordered before the end of week seven of said term. Ideally, this would give me time to inspect the components and materials for any defects or issues before the end of the fall term. This would allow for the first assembly of the components during the winter 2028 term. This would take a considerable amount of time as there will be 500 L.E.D.s that must all be connected to the system. This is also when I would troubleshoot my wireless communication systems to address the gaps in the rail. I would have all the components assembled separately and tested to ensure proper function before the end of the winter 2028 term. This would allow for a complete assembly at the start of the spring 2028 term at the latest, where all components would be moved to the OIT track. Once all parts are set up, testing will begin. First to ensure that the L.E.D.s complete one lap in the time determined and that the number of laps also matches the input. Then the system would be tested with the gaps in the rail removed. As a track athlete myself, I could run along with the lights in test runs to inspect that the lights glow at an even rate. CONCLUSION My proposed design should be able to adequately address the specific requirements that building a light-based pacing system at Oregon Tech’s track entails. I may make further refinements as I continue my electrical engineering education, but I believe this initial design is sufficient to get started. If any part of my design is unrealistic or unfeasible in some way, I am willing to work with you to make it realizable. I am also willing to do work to get funding for this project such as seeking scholarships if the department cannot cover the expenses. I look forward to working with you to make this project a reality. Please let me know if I need to present this project to any other faculty that I may need to get this project approved. Then we can work together on the next steps that will be needed for me to start my project. 18 REFERENCES Andrews, R. W., Pollard, A., & Pearce, J. M. (2013). The effects of snowfall on solar photovoltaic performance. Solar Energy, 92, 84–97. https://doi.org/10.1016/j.solener.2013.02.014 Apple Maps. (n.d.). https://maps.apple.com/ Electronix Express. (n.d.). https://www.elexp.com/?srsltid=AfmBOopUvvSAVBnU8AbMIhfIGWOdhedkulIVb4ScnI PdirJETH6ylYLj Finances, budget and Facilities. Oregon Tech. (n.d.). (2014) https://www.oit.edu/sites/default/files/2020/documents/bot-orientation-sectioniii.pdf Hollings, S. C., Hopkins, W. G., & Hume, P. A. (2011). Environmental and venue‐related factors affecting the performance of elite male track athletes. European Journal of Sport Science, 12(3), 201–206. https://doi.org/10.1080/17461391.2011.552640 Home: Wavelight Technologies. Wavelight. (n.d.). https://www.wavelight-technologies.com/ Landells, S. (2020). How wavelight technology has opened up new possibilities in athletics: Feature: World athletics. worldathletics.org. https://worldathletics.org/news/feature/wavelight-technology-athletics Singh, V. K., Yadav, V. P., Pokhrel, T., Bhattacharjee, P., & Majumder, A. (2024). A method of variable frequency clock generation. 2024 IEEE International Symposium on Smart Electronic Systems (iSES), 251–254. https://doi.org/10.1109/ises63344.2024.00060 Taylor, J., Atkinson, G., & Best, R. (2021, May 21). Paced to perfection: Exploring the potential impact of WaveLight technology in Athletics. Wintec Research Archive. http://researcharchive.wintec.ac.nz/7751/ Thiel, C., Foster, C., Banzer, W., & De Koning, J. (2012a). Pacing in olympic track races: Competitive tactics versus best performance strategy. Journal of Sports Sciences, 30(11), 1107–1115. https://doi.org/10.1080/02640414.2012.701759 Yang, X., Tong, Z., Zhang, H., Zhang, Y., Dai, Y., Zhang, C., Chen, X., & Xu, J. (2022). 7M/130-Mbps led-to-led underwater wireless optical communication based on arrays of series-connected leds and a coaxial lens group. Journal of Lightwave Technology, 40(17), 5901–5909. https://doi.org/10.1109/jlt.2022.3186794
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