Project

# Title Team Members TA Documents Sponsor
20 Touch Controlled Programmable DC Power Supply Circuit
 Chaoli Xia
Sichen Wang
Weisong Shi
Yiyi Wang
 design_document1.pdf
final_paper2.pdf
final_paper3.pdf
proposal2.pdf
 Aili Wang
# MEMBERS:
- **Weisong Shi** weisong4
- **Chaoli Xia** chaolix2
- **Yiyi Wang** yiyi4
- **Sichen Wang** sichenw2

# TITLE:
**Touch Controlled Programmable DC Power Supply Circuit**

# PROBLEM:
Numerous electronic devices are powered by varying DC voltage levels. For instance, cell phones, watches, and Kindles all require a 5V voltage adapter, whereas a laptop adapter supplies the motherboard with 12V. There are a variety of models, standards, and power supply methods for electronic devices, which can make powering them both inconvenient and problematic. Accommodating these diverse standards can be challenging. So in this project, we aim to build an intuitive, touch-controlled and programmable DC power supply to avoid the limitations.

# SOLUTION OVERVIEW:
The aim of this project is to develop printed circuit board (PCB) level touch-controlled programmable DC power supply circuits that can accommodate these diverse DC voltage levels. Its configuration adjustments are initiated by touch, fusing technology. The design integrates an AC-DC converter, variable regulated power supply, touch control circuit, and short circuit protection, creating a flexible and safe power supply solution.

# SOLUTION COMPONENTS:
- **AC-DC Converter:**
This component efficiently converts AC to DC to power the circuit. It includes a step-down transformer, a bridge rectifier, a low-pass filter circuit, an LED indicator, switch and fuse to ensure efficient and reliable power conversion.
- **Variable Regulated Power Supply Circuit:**
This component provides a stable and adjustable DC output to fulfill diverse voltage requirements. It includes Variable voltage regulator from TI or ADI, and variable voltage control circuits for outputting different voltage levels.
- **Touch Control Circuit:**
This component allows touch-sensitive controls for user interaction.It includes touch sensors (touch plate), digital IC and other circuits to produce control signal for the variable voltage control circuits.
- **Short Circuit Protection Circuit:**
This component ensures the safety of the circuit and the connected devices by detecting and preventing short circuits. It includes current sensors and overcurrent protection components.

# CRITERION FOR SUCCESS:
- **Diverse Voltage Accommodation:**
The power supply circuit should be able to efficiently supply a wide range of DC voltage levels to meet diverse application requirements.
- **Touch Controlled:**
The touch-controlled system should be intuitive and responsive.
- **Short Circuit Protection:**
The circuit should effectively detect and respond to short circuits.
- **Stablity and Reliability:**
* The variable regulated power supply should deliver stable and accurately regulated DC output under varying load conditions.
* The PCB design should be reliable and efficient.

# DISTRIBUTION OF WORK:
- **Weisong Shi & Chaoli Xia (ECE):**
* Design and implement the touch control circuit.
* Develop the algorithm for short circuit detection and protection.
- **Yiyi Wang & Sichen Wang (EE):**
* Design the AC-DC converter circuit, considering efficiency and safety.
* Design the variable regulated power supply circuit, considering the stability and the voltage range.
- All the team members will contribute to the documentation, including circuit diagrams, PCB layouts, and code documentation. We will also collaborate on testing the integrated system to ensure the functionality.

Robot for Gym Exercise Guidance

Zifei Han, Dalei Jiang, Kunle Li, Chang Liu

Featured Project

TEAM MEMBERS

Dalei Jiang (daleij2)

Zifei Han (zifeih2)

Chang Liu (changl12)

Kunle Li (kunleli2)

PROJECT TITLE

Robot for Gym Exercise Guidance

PROBLEM

In modern society, daily fitness is a necessary life choice for healthy people. When it comes to fitness, the standard of movement is very important. However, hiring a coach exclusively for instruction is sometimes not a convenient and economical option. We think robots are perfectly capable of determining whether a person's movements are in place. To this end, we need to propose a scheme to design a robot that can walk behind people and use certain technologies to identify human movements when people are moving, compare with the existing action models, and give an evaluation.

SOLUTION OVERVIEW

Our solution is to design a robot that included a chassis that drove the motion on the bottom and a computer operating system and camera on the top. With ultrasonic radar and cameras, the robot can follow the target. When the "motion assessment" module starts to operate, the camera will capture video information and begin motion analysis at the same time. The analysis of human motion will be completed as soon as possible and the standard evaluation of motion will be given. At the same time, we will design some multimedia files, such as sound and video, to interact with the user.

SOLUTION COMPONENTS

Based on the introduction above, several systems need to be implemented to realize the solution.

SUBSYSTEM 1: BOTTOM MOBILE PLATFORM PROGRAMMING

We plan to take use of the EAI SMART robot platform as the base movement platform of the robot. We will do the programming based on the ROS system to realize automatic navigation, path planning, and object tracking.

SUBSYSTEM 2: SKELETAL BINDING AND MOVEMENT ANALYSIS OF THE HUMAN BODY

The most important part of this program is that we will use the Mask R-CNN to do the skeletal binding to determine the human's movement. We will try to train an efficient model to help us realize fast analysis.

SUBSYSTEM 3: MAN-MACHINE INTERACTIVE SYSTEM

As a user-oriented product, we need to design a friendly human-computer interface to realize the free conversion of functions.

SUBSYSTEM 4: MOVEMENT STANDARD ALGORITHM

We need to devise an algorithm to assess the deviation between the gymnast's movements and the standard. This algorithm is very important for the final product performance feedback.

CRITERION FOR SUCCESS

The robot can self-navigate to find people in the gym.

The robot can monitor the person doing exercise and extract human poses.

The robot can check whether the person is doing correctly in the exercise.

DISTRIBUTION OF WORK

Dalei Jiang: Skeletal binding and movement analysis of the human body

Zifei Han: Bottom mobile platform programming

Chang Liu: Man-machine interactive system building

Kunle Li: Movement standard algorithm designing