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CO2 Classroom Monitoring System - Coggle Diagram
CO2 Classroom Monitoring System
Hardware
sensors
collect data
SCD30 Sensioron Sensor
$140
DHT22 sensor
not needed
OLED display
display data
$17
mirco controller
sort data
query data
control system
battery pack
resitors
4k7 ohm
Got replaced by a 220 Ohm
still functions
330 Ohm
breaboard
cables
LED
output
indicator for CO2 level
Software
python
logging data locally
periodically collect data
store records in database
SQL and API
SQL
graphs
action icon
sort data
API
alerts
CO2 level too high
pull data out of CSV
Phrase data
Stakehodlers
Students
Health and safety
study and learning
attendance
IT admin
monitor the classrooms CO2 level
manages ventelation
Teachers
learning and teaching environment
student safety and health
access classroom observation
be able to alert students quickly
department of education
students to be able to focus on work
best room conditions for learning
safety of students
parents
safety of child
Data
internally generated
CO2 concentration
humidity
temperature
DBMS
sort and query data
log data
External
governemnt
air quality
smoke action level
dust aciton level
app API
Internal
CO2 concentraiton
humidity
Temperature
Problem
CO2 levels in classroom
closed area
CO2 level increases over time
O2 consumed
High levels of CO2
leads to headaches
sore throat
difficulty concentrating
existing solution
Open windows and doors
guessing when CO2 levels are high
waste air conditioning needlessly
Lose Money
Requirement
comply with Global Web Content Accessibility guideline
SPLC style guide
copyright law
Data
Format
interger
flloat
dd/mm/yy
time
primary key
Database
date
time
CO2
humidity
Temperature
Relation
dataflow
how data flows through the system
data dictionary
meaning
relations with other data
origin
usage
entity
User
SPLC staff
Head of education
Teachers
IT staff
students
sensor
CO2
Humidity
Temperature