Repository navigation
ED 4 Worksheet
The systematic translation of the theoretical function tree into physical architecture requires the rigorous process of functional clustering. By grouping related sub-functions together based on their spatial, energy, and information flows, the complex mechatronic perpetual calendar is divided into manageable modular subsystems. As visually documented in the functional clustering diagram, the primary tasks of calculating the date logic, processing temporal algorithms, and controlling the internal state are clustered together to form the central processing core. The physical actuation of the time-telling mechanisms, along with the feedback positioning sensors, are clustered to form the mechanical output module. Finally, the user input settings, power regulation, and external structural communication are grouped to provide the foundational support and human-machine interface required for continuous operation.
Following the functional clustering exercise, the entire product architecture is officially consolidated into three distinct physical and electrical subsystems.
| SL. No. | Subsystem |
|---|---|
| 1 | electronic & control unit |
| 2 | mechanical display unit |
| 3 | user interface & power unit |
To guarantee that the physical prototype will assemble and function correctly without mechanical interference or data loss, the spatial, data, and material interactions between the three identified subsystems must be strictly mapped. The interaction matrices below detail the exact integration pathways for the mechatronic calendar.
First Interaction Block (Subsystem 1: Electronic & Control Unit)
| Subsystem 1 | Subsystem 2 | Subsystem 3 | Interaction Details |
|---|---|---|---|
| Spatial | stacked | enclosed | sends pwm, calculate data to actuate display |
| Data | pwm | input | receives input via wire & power from s3 |
| Material | wire | wire | enables easy reset & perpetual cycle |
The electronic and control unit acts as the primary brain of the calendar. Spatially, it is stacked alongside the mechanical display and fully enclosed within the power unit casing. It fundamentally sends pulse-width modulation signals to accurately calculate data and actuate the physical display, while simultaneously receiving essential user inputs and direct current power via standard wired connections from the third subsystem. This configuration safely enables easy resetting and ensures the perpetual cycle operates indefinitely.
Second Interaction Block (Subsystem 2: Mechanical Display Unit)
| Subsystem 2 | Subsystem 1 | Subsystem 3 | Interaction Details |
|---|---|---|---|
| Spatial | adjacent | supported | sends feedback signal for calibration & homing after leap year |
| Data | feedback | none | no data, only load transfer |
| Material | signal | load | plywood/acrylic carrier used & gives display window |
The mechanical display unit serves as the physical output mechanism. It is placed adjacent to the control board and physically supported by the third subsystem. Critically, it sends a continuous feedback signal back to the first subsystem for precise calibration and homing procedures, particularly after a leap year adjustment. While there is no data exchange with the structural housing, a physical load transfer occurs, relying on a plywood or acrylic carrier to securely hold the mechanical parts and provide a clear display window for the user.
Third Interaction Block (Subsystem 3: User Interface & Power Unit)
| Subsystem 3 | Subsystem 1 | Subsystem 2 | Interaction Details |
|---|---|---|---|
| Spatial | front-mounted | housed | main hmi - sends command & power to control board |
| Data | command | indirect | indirect data via s1 only |
| Material[cite: 25] | power | structure | structure protects mechanism, ensures portability & readability |
The third subsystem encompasses the external housing, the power supply, and the human-machine interface. The user interface components are front-mounted relative to the control board, while the mechanical display is safely housed within its internal structure. As the main human-machine interface, it directly sends operational commands and electrical power to the primary control board, interacting with the mechanical display only indirectly through the first subsystem. Ultimately, this rigid material structure protects the delicate internal mechatronic mechanisms and ensures the final prototype maintains excellent portability and visual readability.