Presentation 1 Team 5

Gideon Afolayan Shee Tong Lee Nathan Schultz Kong Meng Yang Naser Aldaihani BSEE

Team 5: Expertise & Experience Gideon Shee Tong Nathan Kong Naser Aldaihani Expertise: soldering and testing Experience: internships @ Milwaukee Electronics, and Rockwell Automation. Expertise: None Experience: None Expertise: hydraulic electronic control Experience: GS Hydraulics 3 yrs. Expertise: Instrumentations Experience: Oscillators, timers, and microcontrollers

Team 5: Total Resources Estimation 800 Manhours expected $200 or key part availability for material and prototyping As individuals, we are dedicated to making the most from the class and as a team we are pretty excited working together and contributing to each others success.

Selection Matrix – Average team scores 0-100

Projects under consideration Fish Tank Feeder

Projects under consideration Fish Tank Feeder There are three possible operations desired. The fish tank project is a position sensing apparatus through IR, that once sensed, the feeders will then dispense food controlled through proper timing. The objective of the Water Institute is to collect data that supports there understanding of fish activity.

Projects under consideration Smart-Bot

Projects under consideration Smart-Bot A Smart-Bot is one that makes movement based on the programming of the interpretation of sensors. This fully automated robot may also be used in tracking and following sensors detected on a person to cart personal belongings.

Projects under consideration Room Temperature Control

Projects under consideration Room Temperature Control This project is geared towards temperature control. Is able to moderate the temperature of an environment using a thermocouple and fans as temperature makes slight changes. The controlling centre would be used through remote digital operation to set and shut down the system.

Proposed Selection Photo Sensing Blinds !

Proposed Product Summary Photo Sensing Blinds ! The blinds will be able the detect changes in sunlight from the inside and out, and adjust there direction by the use of servo motors. The blinds will operate under direction of the CPU with proper interruption from a remote controller. The blinds are to be fully automated to operate in timed intervals that may be set from an RF controller (optional).

Proposed Product Summary Photo Sensing Blinds ! The product will operate off of three photo sensors positioned on or around the blind. The primary benefit of the product is to control the opening and closing of the blind and also to provide a glare free environment at low cost. The user friendly remote control will be made available for manual operation so that all may enjoy!

Proposed Product Summary Why we chose the Photo Sensing Blinds Project ? Overall, this project incorporates the expertise available of all of the group members. The project completion is obtainable within the allotted time for the class. This project was ideal because of the possibility of funding from the “Discovery World” and the chance upon completion, display of the project at there facility.

Major Risks taken Having made agreements with “Discovery World”, gives a sense of obligation that will be a challenge. Added product reliability and durability for display. Programming limitations may prohibit our final prototype’s range of ability. We must provide a precise cost determination due to funding and might not get a second chance.

Why we rejected other ideas ? Project Selection Why we rejected other ideas ? Other projects required more understanding of resources that were beyond our present scope (i.e. smart-bot and the fish tank). Repetition. No funding was available. The other projects just didn’t offer a large enough range of product use and availability.

System Level Requirements Performance Requirements: Auto mode: consistent updates from the light intensity read sensors which cause specific angle adjusts to be made on the motors through proper programming. Manual mode: fast responsive user interface through remote control†, with push-button user settings to change orientation of the blinds. Sleep mode: goes into hibernation to the extent of timers manual setting. Off mode: option for the user to turn off the blind control system completely † Radio Frequency remote control is optional.

System Level Requirements Standard Requirements: Temperature: -40°F -> 85°F Humidity range: 0-100% Input voltage: 120V Power: 20W

Block Diagram Description Block Name Owner Brief Description Of Block Function Power Interfaces Digital Analog 1 Power Supply Shee Tong Lee - Converts Commercial 120VAC 60 Hz Power into 5VDC and a +/- 12VDC supply. In: 120VAC, 60Hz Out: 5VDC, +/-12VDC None 2 Controller Kong M. Yang - Senses I/O from the photo resistors, and outputs to motor. - Digital inputs from remote user interface. In: 5VDC In: User interface Out: PWM to Servo Motors In: From sensors 3 Servo Motor / DC Motor Nathan Schultz Uses closed loop control feed back to update motor positioning. H-bridge operation for two way positioning. In: 5VDC, +12VDC In: Controller Out: Closed loop feedback, and blind system 4 Photo Sensors Gideon Afolayan - Detects and reacts to minute changes in light intensities. - Sends signal to controller via wiring. In: 5VDC, Out: 0-5VDC Out: 0-5VDC 5 Remote Control† Naser Aldaihani - Remote interface of settings and operational shut-down. In: 9VDC battery In: User display Out: Settings † Radio Frequency remote control is optional.

Block Interface Signals Power Supply – Shee Tong Lee Convert from a 120VAC @ 60Hz source into a 12 VDC Output +/- 12 V and +5 to the sensor and controller Output – 12 V to the DC Motor

Block Interface Signals Controller – Kong Meng Yang - Analog input from photo resistor circuit, make computations, and output a signal to the motor (PWM). - Digital inputs from remote user interface, make decisions, and give output to display and motors.

Block Interface Signals Motors – Nathan Schultz A digital input of 12Vdc nominal from the power supply will drive the motor op. Wiring from the main PCB will determine Bi-directional operation. PWM supplied output will be supplied from the MPU and interfaced trough a H-bridge to operate the motor. Closed-loop Control

Block Interface Signals Inputs from H-bridge will control through PCB trace on remote location. Power cable from supply to drive H-bridge. Closed-loop Control operation trough wiring to MPU.

Block Interface Signals Photo Sensor (Block 4) – Gideon Afolayan Block 4 senses the intensity of the light and sends an analog signal to the controller To that effect. Block 4 gets an input of 5V and 12V from the power supply (Block 1). Block 4 has an output interface with the input of the MPU (block 2) and supplies an analog voltage supply within the range of 0V and 5V Photo Sensor / MPU

Block Interface Signals Remote User Interface – Naser Aldaihani Powered by 9v DC battery Digital output to MPU Analog output from the remote to the circuit board

Block Signals: Summary Table

Block Signals: Summary Table

Block Signals: Summary Table

Block Signals: Summary Table

Ethics & Intellectual Property Ethical or Societal Issues User may not be harmed or injured if the product failed. User should be cautious of body parts on and around equipment. Injury or harm due to product failure can be prevent by doing adequate safety testing directly in the product design. Faulty or flawed Engineering may resulted in public harm. Faulty or flawed engineering can be prevented by insuring that the product designs comply with maximum safety standards. Engineering of product reliability and durability is crucial for display atmosphere.

Three applicable patents: Patent number: 07/753,811 Title: Russel J. Jacobs Date: September 3, 1991 Patent number: 09/610,066 Title: Gary E. Will Date: July 5, 2000 Patent number: 06/248,223 Title: Jean Bullat Date: March 27, 1981