Project

# Title Team Members TA Documents Sponsor
83 Automatic Door Conversion Kits
 Alex Vega
Love Patel
Romeo Delgado
 Chi Zhang design_document1.pdf
final_paper1.pdf
other1.pdf
proposal1.pdf
**Team Members:**
- Romeo Delgado (rdelg2)
- Love Patel (lovep2)
- Alexander Vega (avega40)

**PROBLEM:**

With accessibility being considered more in modern infrastructure, more and more systems for accommodating people with physical disabilities are being installed every day. Most of these systems are installed in public locations and paid for by the government. However, installing similar accessibility systems in one's home for those with movement limitations is much more costly and difficult, even for such common accessibility obstacles such as doors. Cheaper and easier to install automatic doors meant for residential homes would alleviate this cost barrier and difficulty of installation for those with movement limitations that struggle to use standard, manual doors.

**SOLUTION:**

Our solution for the high barrier to entry for making one's home accessible is to make more cost effective and quicker to install automatic door conversion kits for residential homes. These kits would include a Bluetooth door opener, door handle, and remote. The Bluetooth door opener would attached to door you're converting and its frame, allowing it to be remotely closed/opened with the Bluetooth remote. To allow the door to close/open remotely, it's latch would also be replaced by a Bluetooth actuator that would close/open in sync with with the door opener to allow it to swing freely.

**SOLUTION SUBSYSTEMS:**

1. **Power Subsystem:**

- A lithium coin battery slot for the Bluetooth remote, allowing for batteries to be replaced.
- Converts standard outlet power to the motor and the PCB.
- A set of 4 AA batteries to power the door latch actuator.

2. **Processor Subsystem:**

- An ESP32 microprocessor for sending/receiving Bluetooth signals between the handle motor, the PCB, and the remote.
- Internal A/D conversion and signal processing.

3. **Door Close/Open Subsystem:**

- A 25 W to 30 W motor capable of producing 30 Nm of torque, allowing the closing/opening residential doors through jointed arm on a guided rail system.

4. **Door Latch Actuator Subsystem:**

- A 6 V DC solenoid actuator connected to a Bluetooth receiver and a PCB that opens in sync with the door being opened to allow it to swing freely.
- This system will be housed inside a custom 3D printed door handle

5.**Remote Control Subsystem:**

- A handheld Bluetooth remote with 3 buttons and a 8 segment hex display showing which door is currently being targeted for closing/opening.

**CRITERION FOR SUCCESS:**
- A minimum of two operational kits able to convert 80 inch tall, 36 inch wide, and 55 pound residential doors into automatic doors.
- A Bluetooth remote is able to switch between which door is targeting to close/open while displaying the set number of the currently targeted door and whether it is open or not.
- Each kit is cheaper and easier to install than commercially available kits with similar features.

GYMplement

Srinija Kakumanu, Justin Naal, Danny Rymut

Featured Project

**Problem:** When working out at home, without a trainer, it’s hard to maintain good form. Working out without good form over time can lead to injury and strain.

**Solution:** A mat to use during at-home workouts that will give feedback on your form while you're performing a variety of bodyweight exercises (multiple pushup variations, squats, lunges,) by analyzing pressure distributions and placement.

**Solution Components:**

**Subsystem 1: Mat**

- This will be built using Velostat.

- The mat will receive pressure inputs from the user.

- Velostat is able to measure pressure because it is a piezoresistive material and the more it is compressed the lower the resistance becomes. By tracking pressure distribution it will be able to analyze certain aspects of the form and provide feedback.

- Additionally, it can assist in tracking reps for certain exercises.

- The mat would also use an ultrasonic range sensor. This would be used to track reps for exercises, such as pushups and squats, where the pressure placement on the mat may not change making it difficult for the pressure sensors to track.

- The mat will not be big enough to put both feet and hands on it. Instead when you are doing pushups you would just be putting your hands on it

**Subsystem 2: Power**

- Use a portable battery back to power the mat and data transmitter subsystems.

**Subsystem 3: Data transmitter**

- Information collected from the pressure sensors in the mat will be sent to the mobile app via Bluetooth. The data will be sent to the user’s phone so that we can help the user see if the exercise is being performed safely and correctly.

**Subsystem 4: Mobile App**

- When the user first gets the mat they will be asked to perform all the supported exercises and put it their height and weight in order to calibrate the mat.

- This is where the user would build their circuit of exercises and see feedback on their performance.

- How pressure will indicate good/bad form: in the case of squats, there would be two nonzero pressure readings and if the readings are not identical then we know the user is putting too much weight on one side. This indicates bad form. We will use similar comparisons for other moves

- The most important functions of this subsystem are to store the calibration data, give the user the ability to look at their performances, build out exercise circuits and set/get reminders to work out

**Criterion for Success**

- User Interface is clear and easy to use.

- Be able to accurately and consistently track the repetitions of each exercise.

- Sensors provide data that is detailed/accurate enough to create beneficial feedback for the user

**Challenges**

- Designing a circuit using velostat will be challenging because there are limited resources available that provide instruction on how to use it.

- We must also design a custom PCB that is able to store the sensor readings and transmit the data to the phone.