S16: Biker Assist
Contents
Grading Criteria
- How well is Software & Hardware Design described?
- How well can this report be used to reproduce this project?
- Code Quality
- Overall Report Quality:
- Software Block Diagrams
- Hardware Block Diagrams
- Schematic Quality
- Quality of technical challenges and solutions adopted.
Project Title
Abstract
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Objectives & Introduction
Show list of your objectives. This section includes the high level details of your project. You can write about the various sensors or peripherals you used to get your project completed.
Team Members
Project Schedule
| Sr. No. | Start Date | End Date | Task | Status | Actual Completion Date |
|---|---|---|---|---|---|
| 1 | 03/22/2016 | 03/28/2016 | Ordering the components | Completed | 04/02/2016 |
| 2 | 03/22/2016 | 04/04/2016 | Reading data sheet and understanding the components | Completed | 04/04/2016 |
| 3 | 03/29/2016 | 04/15/2016 | Algorithm design and Coding | Completed | 04/15/2016 |
| 4 | 04/15/2016 | 04/25/2016 | Distance sensor interfacing and Testing | ||
| 5 | 04/15/2016 | 04/25/2016 | Automatic light interfacing and testing | ||
| 6 | 04/26/2016 | 05/02/2016 | Integrating and testing | ||
| 7 | 05/03/2016 | 05/16/2016 | Testing and adding extra features | ||
| 8 | 05/17/2016 | 05/23/2016 | Final testing and Demo |
Parts List & Cost
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Design & Implementation
The design section can go over your hardware and software design. Organize this section using sub-sections that go over your design and implementation.
Turn Angle Detection Sensor
Hardware Design
A turn angle detection sensor is used to detect the exact measure of turn of the bike handlebar. This angle measurement is used to determine if the bike is taking turns. This sensor design has two different approaches. These are varying resistance approach and hall effect approach. Finally, we settled on using thinpot which works on the varying resistance approach. These two methods are explained below.
Varying Resistance Sensor
This sensor functions using the principle of Ohm's law. This law dictates that the current is inversely proportional to resistance for a given voltage. The sensor has three terminals, two end points for connecting voltage across sensor and one middle terminal called wiper. As the wiper terminal traverse over the coil, sensor gives varying resistance across wiper and one of the other terminals and hence varying voltage. Varying voltage output pin is connected to the ADC of the micro-controller and exact turn angle can be determined. We worked on two different sensors working on this principle.
Custom Resistance Coil
To detect turn angle, we designed our custom coil. We wound high resistance wire on a semicircular base to look like a coil. This coil was attached to the fixed part of the bicycle. The third terminal acting as a wiper was attached to the moving part of the handlebar such that, it traverses over the coil. We attached two resistances of value 10K were attached before connecting to the battery. These two circuits formed a potential divider circuit and also avoided battery short circuit.
Thinpot
Thinpot is another sensor which is directly available in the market. It works on the same principle of variable resistance. It is nothing but the potentiometer which can be arced and pasted to curved surfaces. It has three terminals, two for supply, ground and one for measuring variable resistance. We have to use external wiper which traverse over the thinpot and resistance gets changed at pin 2 of the wiper. The total resistance of thinpot is 10KΩ which changes as wiper moves. We used this sensor as it has no restrictions over power supply voltage, easy to attach to bike, and easy to get readings using ADC.
Hall Effect Sensor
Software Design & Implementation
Show your software design. For example, if you are designing an MP3 Player, show the tasks that you are using, and what they are doing at a high level. Do not show the details of the code. For example, do not show exact code, but you may show psuedocode and fragments of code. Keep in mind that you are showing DESIGN of your software, not the inner workings of it.
Implementation
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Object Detection Sensor
Hardware Design
Software Design & Implementation
LED Strip
Hardware Design
Software Design & Implementation
Testing & Technical Challenges
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Include sub-sections that list out a problem and solution, such as:
My Issue #1
Discuss the issue and resolution.
Conclusion
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Project Video
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Project Source Code
References
Acknowledgement
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References Used
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Appendix
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