Project

# Title Team Members TA Documents Sponsor
21 Automatic Pet Sitter
Abhi Chebiyam
Joseph Choi
Tyler Huang
Hojoon Ryu design_document1.pdf
other1.pdf
proposal1.pdf
video1.mov
Team Members:
- Tyler Huang (tylerh4)
- Joseph Choi (jschoi5)
- Abhi Chebiyam (abhijit3)


# Problem

Describe the problem you want to solve and motivate the need:
If an owner is away from home for vacation or away daily because of work, it can be hard to give the proper care for your pet. Solutions today are too one-dimensional when each pet requires different types of care even amongst the same species. Pets have unique and distinct preferences and the owner shouldn’t have to compromise because of the limitations of the feeder system.

# Solution

The solution to this problem is to design an automatic dispenser setup that delivers food and water to the user’s pet. Our solution will involve a couple of subsystems in order to provide users’ pets with the most comfort and care. The first and main subsystem will revolve around a pressure pad/sensor that will act as the main trigger for the dispensing system. The next subsystem is the dispensing of food and water, and all the features related to that.


# Solution Components

## Pressure Pad

Our main trigger system will be based on the pet’s weight. Our aim is to have the pet sit or walk onto a pressure sensor that will lead to food or water being dispensed.

Some features we are hoping to implement with this subsystem are:
Pressure pad being configurable to the pet’s weight (i.e., trigger weight for German Shepherd will be much higher than trigger weight for Chihuahua)
A camera that is activated after a set time of pressure on the pad that will take a photo of the pet and send it to the owner
Directly triggering the second subsystem to dispense food and water

## Dispenser Subsystem

This subsystem will center around our dispensing of food and water into our pet’s bowls. While this may seem simple in concept, we hope to incorporate features that raise the complexity of this subsystem.

Some features we are hoping to implement with this subsystem are:
Dispensing triggered by first subsystem
Amount of food and water dispensed will be calculated and can be combined with pressure sensors on the bowls to know how much food or water the pet has consumed
Dispensers will know when to stop filling bowl based on light sensors- this will also serve a dual purpose of not filling the bowl while the pet is consuming the food or water

## Bowl

This subsystem is mainly to send information to the dispenser system and communicate when dispensing should continue or stop.

Alerts the dispenser when to stop filling the bowl using load sensors
Vibration creator to create movement in the bowl for pet preference

## Mobile Application

This subsystem allows the owner to customize and set the dispenser settings to a highly customized level for their pet. The dispenser will be able to send data through the Raspberry Pi to the application, so the owner will be able to keep track of their pet and its well-being.

# Components
- Load Sensor (SEN-10245): https://www.sparkfun.com/products/10245
- Water Pump: https://usa.banggood.com/Excellway-Mini-Micro-Submersible-Motor-Pump-Water-Pumps-DC-3-6V-100L-or-H-Low--p-1249338.html?imageAb=1&rmmds=search&ID=514182&cur_warehouse=CN&akmClientCountry=America&a=1661970223.2113&akmClientCountry=America
- Camera for Arduino: https://www.amazon.com/Arducam-Megapixels-Sensor-OV5647-Raspberry/dp/B012V1HEP4/ref=asc_df_B012V1HEP4/?tag=hyprod-20&linkCode=df0&hvadid=385286500280&hvpos=&hvnetw=g&hvrand=3640949845190010298&hvpone=&hvptwo=&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=9022196&hvtargid=pla-820020083673&psc=1&tag=&ref=&adgrpid=77282054583&hvpone=&hvptwo=&hvadid=385286500280&hvpos=&hvnetw=g&hvrand=3640949845190010298&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=9022196&hvtargid=pla-820020083673
- Arduino / Rasp Pi

# Criterion For Success

1) We can categorize our goals by priority- focusing on fulfilling the most important features first]
2) Food and Water is dispensed when a pressure pad is triggered
3) The amount of food and water dispensed can be customized
4) The pressure pad sensor trigger weight can be configured
5) The amount of food and water dispensed can be calculated
6) The dispenser will stop dispensing regardless of the pressure pad trigger if the light sensor is triggered
7) Photo can be taken of pet after a set amount of time being triggered
8) Dispenser data is being sent to an external device.
9) The external device is able to set limitations to the dispenser.

Recovery-Monitoring Knee Brace

Dong Hyun Lee, Jong Yoon Lee, Dennis Ryu

Featured Project

Problem:

Thanks to modern technology, it is easy to encounter a wide variety of wearable fitness devices such as Fitbit and Apple Watch in the market. Such devices are designed for average consumers who wish to track their lifestyle by counting steps or measuring heartbeats. However, it is rare to find a product for the actual patients who require both the real-time monitoring of a wearable device and the hard protection of a brace.

Personally, one of our teammates ruptured his front knee ACL and received reconstruction surgery a few years ago. After ACL surgery, it is common to wear a knee brace for about two to three months for protection from outside impacts, fast recovery, and restriction of movement. For a patient who is situated in rehabilitation after surgery, knee protection is an imperative recovery stage, but is often overlooked. One cannot deny that such a brace is also cumbersome to put on in the first place.

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Solution:

Our group aims to make a wearable device for people who require a knee brace by adding a health monitoring system onto an existing knee brace. The fundamental purpose is to protect the knee, but by adding a monitoring system we want to provide data and a platform for both doctor and patients so they can easily check the current status/progress of the injury.

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Audience:

1) Average person with leg problems

2) Athletes with leg injuries

3) Elderly people with discomforts

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Equipment:

Temperature sensors : perhaps in the form of electrodes, they will be used to measure the temperature of the swelling of the knee, which will indicate if recovery is going smoothly.

Pressure sensors : they will be calibrated such that a certain threshold of force must be applied by the brace to the leg. A snug fit is required for the brace to fulfill its job.

EMG circuit : we plan on constructing an EMG circuit based on op-amps, resistors, and capacitors. This will be the circuit that is intended for doctors, as it will detect muscle movement.

Development board: our main board will transmit the data from each of the sensors to a mobile interface via. Bluetooth. The user will be notified when the pressure sensors are not tight enough. For our purposes, the battery on the development will suffice, and we will not need additional dry cells.

The data will be transmitted to a mobile system, where it would also remind the user to wear the brace if taken off. To make sure the brace has a secure enough fit, pressure sensors will be calibrated to determine accordingly. We want to emphasize the hardware circuits that will be supplemented onto the leg brace.

We want to emphasize on the hardware circuit portion this brace contains. We have tested the temperature and pressure resistors on a breadboard by soldering them to resistors, and confirmed they work as intended by checking with a multimeter.

Project Videos