Project
| # | Title | Team Members | TA | Documents | Sponsor |
|---|---|---|---|---|---|
| 18 | Cheat for lottery wheel based on servo motor control |
Kaixin Zhang Zhangyang He |
design_document1.pdf final_paper1.docx final_paper2.docx final_paper3.pdf proposal1.docx |
Lin Qiu | |
| **TITLE OF PROJECT** Cheat for lottery wheel based on servo motor control **TEAM MEMBERS** Zhangyang He (zhe27) Kaixin Zhang (kaixin3) Bowen Shi (bowens10) Yilin Liu (yilinl10) **PROBLEM** A classic lottery wheel is completely random mechanical making the stopping position point impossible to control accordingly. Absence of control creates difficulty in prediction as seen in testing, promotional events or research experiments, which need an outlined outcome. Current approaches to manipulation tend to be unreliable, inefficient or easily discovered. There is a need to solve the problem of such basic and accurate control with minimum intervention on the motion of the wheel. A deterministic lottery is essential for repeatable tests, fair promotions, and reliability in specialized cases. This project is necessary as it offers an effective, hidden, and high precision way, combining servo motor control and wireless. **SOLUTION OVERVIEW** This project presents a DC servo motor and a wireless switch controlled lottery wheel, allowing a natural wheel rotation while maintaining exact stop control. All you will do is generate an emergency and give a signal to the system. A DC servo motor will be used to drive the lottery wheel, as the motor can be used to control speeds, accelerations, and stopping positions quite accurately. The motion dynamics will be regulated by a motor control algorithm making it smoothly and naturally decelerate, hence, avoiding abrupt or unnatural stopping behavior. You will use real-time system programming in response to external stimulus to get reliable, repeatable results. Sensors will be utilized to halt the stopping mechanism. This switch will enable remote activation with low latency, so it can respond immediately, while remaining invisible. Using seamless wireless control to ensure it runs seamlessly without easily visible signals being sent anywhere in sight, leaving onlookers unaware of the fact that its process is easily not random. For added reliability, the system would have a high-quality signal processor and real-time feedback control to ensure that the wheel stops in the correct position ±1-degree accuracy. The motor control unit will also ensure optimally efficient power and steady operation to allow for sustained use without performance loss. This solution represents a highly effective, reliable, and stealthy approach to controlling lottery outcomes across a wide range of use-cases by leveraging an amalgamation of advanced motor control methods, real-time wireless activation, and modular system integration. **SOLUTION COMPONENTS** - **DC Servo Motor**: This motor serves as the driving force behind the lottery wheel’s movement. It offers high precision in controlling speed, acceleration, and stopping positions, which is crucial for achieving the ±1-degree accuracy required. The motor’s torque characteristics allow for smooth, gradual acceleration and deceleration, which ensures that the wheel’s stopping behavior remains natural and undetectable. - **Motor Control Unit (MCU)**: The MCU is responsible for executing the motor control algorithm, which governs the speed and position of the lottery wheel. The MCU ensures the smooth operation of the motor, facilitating the precise control needed to stop the wheel at a predefined position. The unit also manages the power supply to the motor, ensuring optimal efficiency for long-term use. - **Wireless Switch**: The wireless switch is used to activate the system remotely. It features low-latency operation, engaging the stopping mechanism in less than 0.1 seconds. This switch is discreet, ensuring that the activation is imperceptible to onlookers. The wireless communication is encrypted and employs a secure protocol to prevent detection by external observers. - **Signal Processor & Sensors**: A high-quality signal processor is integrated to refine and process the commands sent to the motor and wireless switch. It helps filter out noise and ensures the system responds instantaneously to inputs, maintaining the desired precision in stopping the wheel.These sensors are strategically placed on the system to detect the wheel’s position and monitor its movement. When the system is close to the desired stopping point, the sensors send feedback to the motor control unit, enabling it to decelerate the wheel smoothly and precisely to halt at the targeted position. - **Real-Time Feedback System**: This system continuously monitors the motor’s performance, adjusting parameters such as speed and acceleration in real-time. It ensures that the wheel stops precisely at the intended location by providing feedback to the motor control unit, which fine-tunes the motor’s behavior as needed. The feedback system also ensures the stability of the system under varying operational conditions. **CRITERION FOR SUCCESS** - **Accuracy of Execution**: The system should be capable of precisely halting the lottery wheel at a preset location with a tolerance of ±1 degree. The method used to stop the motion should be uniform and reproducible for multiple iterations of the experiment. In case of real-life games, natural emotion and seamless operation. In a traditional lottery wheel, servo motor control must make sure to establish the perfect and seamless acceleration, deceleration, and stopping behavior that to without any unnatural or sudden movements. - **Instant & Discreet Activation**: The wireless switch needs to engage the stopping mechanism in less than 0.1 seconds to be more responsive in real-time but remains unnoticed with the observers. - **System Sustainability & Reliability**: The system should be able to operate reliably under varying operating conditions without wide deviations in performance. It also needs to work on low energy and be stable over long usages. - **Undetectable Manipulation**: An intervention in the system should give no visible, audible, or mechanical signals that it is being controlled fromoutside. To give the appearance of randomness, the stopping process must seem entirely natural. |
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