Team Vision for System-Level Design Phase
The purpose of this phase is to determine the functions that are crucial to our system and to design a preliminary system that fulfilled these functions as best as possible. Each team member created a system that they thought would function the best, which we compared to each other, weighing their strengths and weaknesses. Ultimately we accomplished this and came up with a system level design of a rotating table with mechanical arm, which in turn gave us subsystems that we can now divide up and give more detailed consideration to.
Functional Decomposition
The Functional Decomposition is based on our Customer and Engineering Requirements. This is used to establish the need for specific concepts necessary to deliver the overall objectives of the project
Our functions are:
- Focusing the camera
- Adjusting the camera height
- Sorting the artifacts
- Loading the sorted artifacts onto the system
- Placing / moving the artifacts under the camera
- Placing / moving the previous artifact outside of the camera’s region.
- Placing the color test strip under the camera
- Removing the color test strip from under the camera
- Taking the picture
A link to the live document containing our functional decomposition and morphological table can be found here.
Function Tree
The function tree represents our system and subsystem functions.
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Function Tree
Benchmarking
The benchmarking will identify, compare and contrast already available solutions and concept options
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Benchmarking
A link to the live document can be found here.
Morphological Chart
The morphological chart represent our list of required functions and the individual concepts to fulfill each function. It will be used to select an optimal set of concepts that can be integrated to meet the project objectives.
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Morphological Chart
A link to the live document can be found here.
Concept Development
Using our morphological chart, new options ands combinations were designed that can potentially exceed the benchmark concepts.
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System 1
System 2
System 3
System 4
System 5
System 6
A link to the live document can be found here.
Concept Selection
In order to narrow down the potential concepts, these designated system-level selection criteria were used to evaluate the system designs objectively.
- Safety of artifact
- Safety of operator
- Speed of digitization process
- Accuracy of placement
- Quality of picture
- Minimize operator movement
- Easy to use
- Affordability
- Size
- Repairability/ easy maintenance
Concept Screening
A Pugh Chart was formulated to objectively compare each concept against a datum to evaluate each concept.
The datums chosen were the current process in place as well as the proposed process implemented by the P19510 team.
Pugh Chart: Comparing each concept to the current system as a datum.
From this first concept screening diagram, System 2 and System 6 were ranked with the highest unweighted score.
Pugh Chart: Comparing each concept to the P19510 team's implemented system as a datum.
From this second concept screening diagram, System 1 and System 3 were ranked with the highest unweighted score, with System 2 close behind.
A link to the live document for the Pugh Chart can be found here.
Concept Improvement
The selected system concept the team agreed to develop and improve upon was System 2.
A Pugh chart was developed comparing System 2 to the other designs to back up this agreement.
Pugh Chart for System 2
Analysis and discussion.
Feasibility: Prototyping, Analysis, Simulation
The feasibility analysis, prototyping and simulation will confirm that the selected concepts can deliver functionality defined by the System Architecture.
A link to the live document can be found here.
Systems Architecture
The system architecture describes the flow of energy, info, material and structural forces as intended. It will also define subsystem functions, envelopes and interfaces.
Transformation Diagram
Transformation Diagram
Designs and Flowcharts
Here is a high-level view of the elements required to build and operate the entire system.
Hardware
High Level Table Design
High Level Color Strip Arm Design
A link to the live document can be found here.
Software
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High Level Overview of Multithreading Autocrop
Risk Assessment
Our risk assessment has been updated for this phase.
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Risk Assessment
A link to the live document can be found here.
Design Review Materials
Include links to:Plans for next phase
Before the Preliminary Detailed Design Review, we would like to have our subsystems designed to a point that they could be presented to the team and client, and could be created as a preliminary prototype. We would also like to have accomplished some initial prototyping or testing to determine the feasibility of our system and adjust from that.
A link to our individual plans for the next phase can be found here.
Systems Level Definition Documents
A directory consisting all of our live documents can be found here.
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- Node updated 2020-02-18 11:26 by dl3061