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Luca Warmenhoven
2024-06-04 17:10:11 +02:00
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docs/personal-documentation/Luca/infrastructure-design.md
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---
As for our project, we've made the following design choices for our infrastructure.
We've decided to implement a NodeJS server on a Raspberry Pi, which will handle the requests for retrieving exercises.
This server will communicate with a MariaDB database, which contains the exercise data.
The Pepper robot will host a web server, which will handle the incoming rotational data from an ESP8266.
This data will then be processed by a motion processor class, `InputProcessor`, which will compare the rotational data
to the data of the current exercise and show how well the user is performing.
Down below is a visual representation of how this infrastructure will look like.
```mermaid
graph TB
subgraph "Raspberry Pi"
server[NodeJS Server\nHandles requests for\nexercises]
db[Database]
server --Fetch exercise--> db
db --Exercise--> server
server[NodeJS Server\n\nHandles requests for\nretrieving exercises]
db[Database - MariaDB\n\nContains exercise data]
server --Fetch database entry--> db
db --Return retrieved entry--> server
end
subgraph "Pepper Robot"
webServer[Web Server\n\nHandles incoming rotational data\nfrom ESP8266]
motionProcessor[Motion Processor\n\nProcesses rotational data,\ncompares it to the current exercise\nand shows the statistics on the screen]
ui[User Interface\n\nShows the current exercise,\nhow to perform it and the\nstatistics of the user's performance]
motionProcessor --Send HTTP GET for Exercise--> server
server --Send exercise in JSON format--> motionProcessor
server --Send exercise data\nin JSON format--> motionProcessor
webServer --Process rotational data--> motionProcessor
motionProcessor --Show statistics\non the UI--> ui
end
subgraph "Motion Sensing Device"
esp[ESP8266\n\nMeasures sensor data\nand sends it to the web server]
gyro[Gyroscope\n\nMeasures rotational data\nand sends it to the ESP8266]
gyro[Gyroscope\n\nMeasures rotational data\n&#40Rx, Ry, Rz&#41]
esp --Send rotational data\nto Pepper Web Server--> webServer
gyro <--> esp
gyro <---> esp
end
```