Micro Air Pollution Sensing v5.1
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Transcript of Micro Air Pollution Sensing v5.1
Micro Air Pollution Sensing v5.1 Institute of Information Science, Academia SinicaNetwork Research Lab
Research assistantHu-Cheng, Lee
Micro Air Pollution Sensing
Power in the box
Fan
SHT25
7688 DuoLoRa
G5
BME280
Mainboard
Device Tmp. & Hmd.
Heat dissipation
LoRa module
PM1, 2.5 & 10
Environment Tmp., Hmd. & Prs.
Tmp. - Temperature (℃) Hmd. - Humidity (RH%) Prs. - Air pressure (hPa)
WiFiOnboard antenna
Micro Air Pollution Sensing
Not just a box, is a ShieldRP1135C
Water repellent
DC power in
PM sensor air out
PM sensor air in
Fresh air in
Heat air out
Micro Air Pollution Sensing
Consistent performance
HumidityCV = 0.2↓
TemperatureCV = 0.04↓
Air pressureCV = 0.00055↓
PM2.5CV = 0.4↓
CV = Coefficient of Variation
All in a palm size
MAPS TSI AM510 TSI AirassureDimension (cm) 12.4 x 8.4 x 5.4 13 x 9.2 x 7 16.2 x 8.5 x 3.3
Weight 0.2 kg 0.46 kg 0.2 kgPM2.5 ✔ ✔ ✔
Temperature ✔
Humidity ✔
Pressure ✔
Extensibility ✔
NIC WiFi / LoRaPrice $4,000↓ $100,000↑ $30,000↑
That’s it, the MAPS
Small size
12.4 x 8.4 x 5.4 cm60% smaller from v1
40%
Protective case
Water repellent
Lower cost
Cost only 3% price of TSI AM510
(AM510: professional PM sensors)
Great power
consistent performance
H
LEnvironment sensing
Temperature, Humidity & Pressure
Pollution sensing
PM1, PM2.5 & PM10
Data transmit
WirelessWiFi / LoRa
Micro Air Pollution Sensing
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