# Title Team Members TA Documents Sponsor
6 Submarine Model
Wenpeng Zhang
Yikai Xu
Yiqin Li
Zhicong Zhang
Pavel Loskot
Zhicong Zhang
Yikai Xu yikaixu3
Yiqin Li yiqinli2
Wenpeng Zhang wenpeng4

Submarine Model
Request For Approval

Moving on the ground or on the water, or in the air is relatively easy. This may not be the case when moving in the water. A remote-controlled submarine model can be used to simulate the performance of real submarines in a complex environment, showing the working principles of submarines to help understanding submarine technology and marine science.

**Solution overview**
Our solution involves implementing the functionality of a submarine through a remote-control system, an automatic stabilization and dynamic system, and drainage system. Additionally, we require an electronic control MCU to process remote control commands sent from a distance and handle signals from sensors to achieve submarine balance. Our novelty lies in balance in complex underwater environment and avoiding collision.

**Solution component**
Sensor Subsystem:
1. Pressure and infrared distance sensors: Measure the depth and object distance at which the submarine is operating.
2. Motion sensors: Monitor the speed and acceleration of the submarine's three-dimensional motion.

Processing Subsystem:
1. Main Controller (Microcontroller): Responsible for processing and interpreting sensor data, controlling the submarine's movement and operations.
2. Communication Module: Facilitates data communication with an external base or command center, conveying submarine status and mission information.
3. Automatic Stabilization Module: Utilize sensor data and apply PID control algorithms to realize automatic stabilization.

Power Subsystem:
1.Battery and electric Motors: Control the propulsion and maneuvering of the submarine to adapt to different depths and aquatic conditions.

Mechanical Subsystem:
1. Cabin: Used to the house rest of the subsystems and keep water out.
2. Water storage tank: Control the total weight of the submarine.

**Criterion for success**

1. Effective waterproof functionality.
2. [novelty] System's stability. Maintain the hull's balance under different water conditions.
3. Stable ascension and descent.
4. Forward/backward movements.
5. Various operational modes. Each performs at different applications. Such as Obstacle avoidance, cruise control, etc. (optional)

**Distribution of Work**
Zhicong Zhang: Mechanical part
Yikai Xu: Remote controlling and MCU part
Yiqin Li: Electricals part and control system part
Wenpeng Zhang: Software part

Master Bus Processor

Featured Project

General Description

We will design a Master Bus Processor (MBP) for music production in home studios. The MBP will use a hybrid analog/digital approach to provide both the desirable non-linearities of analog processing and the flexibility of digital control. Our design will be less costly than other audio bus processors so that it is more accessible to our target market of home studio owners. The MBP will be unique in its low cost as well as in its incorporation of a digital hardware control system. This allows for more flexibility and more intuitive controls when compared to other products on the market.

Design Proposal

Our design would contain a core functionality with scalability in added functionality. It would be designed to fit in a 2U rack mount enclosure with distinct boards for digital and analog circuits to allow for easier unit testings and account for digital/analog interference.

The audio processing signal chain would be composed of analog processing 'blocks’--like steps in the signal chain.

The basic analog blocks we would integrate are:

Compressor/limiter modes

EQ with shelf/bell modes

Saturation with symmetrical/asymmetrical modes

Each block’s multiple modes would be controlled by a digital circuit to allow for intuitive mode selection.

The digital circuit will be responsible for:

Mode selection

Analog block sequence

DSP feedback and monitoring of each analog block (REACH GOAL)

The digital circuit will entail a series of buttons to allow the user to easily select which analog block to control and another button to allow the user to scroll between different modes and presets. Another button will allow the user to control sequence of the analog blocks. An LCD display will be used to give the user feedback of the current state of the system when scrolling and selecting particular modes.

Reach Goals

added DSP functionality such as monitoring of the analog functions

Replace Arduino boards for DSP with custom digital control boards using ATmega328 microcontrollers (same as arduino board)

Rack mounted enclosure/marketable design

System Verification

We will qualify the success of the project by how closely its processing performance matches the design intent. Since audio 'quality’ can be highly subjective, we will rely on objective metrics such as Gain Reduction (GR [dB]), Total Harmonic Distortion (THD [%]), and Noise [V] to qualify the analog processing blocks. The digital controls will be qualified by their ability to actuate the correct analog blocks consistently without causing disruptions to the signal chain or interference. Additionally, the hardware user interface will be qualified by ease of use and intuitiveness.