1.
1
Bridging AI to Precision
Agriculture through IoT
Yi-Bing Lin
Chair Professor
CSIE/NCTU
Email: liny@nctu.edu.tw

2.
Weather Station
Field Bao-2

3.
Weather Station
Field Bao-3

4.
Irrigation System
Field Bao-4

5.
IDF-n
IDF-1
IDF-2
IDF-3
DA
Sensors
IDA-n
IDA-1
IDA-2
IDA-3
IDA
Sensor-1
Sensor-2
Sensor-3
AgriCtl Board (SnsrCtl)
IDA-n
IDA-1
IDA-2
IDA-3
IDA
Actuators
IDA-n
ODF-1
ODF-2
ODF-3
DA
Relay-1
Relay-2
Relay-3
AgriCtl Board (ActrCtl)
IoTtalk
Engine
ArgiGUI
5
6
1 2
3 4
7
AgriTalk
Server
10 11 12 13Cloud

6.
7

7.
UV sensor
CO2
Temperature
Humidity
Atmo. pressure
Rain gauge
Wind gage
1
2
3
4
6

8.
IDF-n
IDF-1
IDF-2
IDF-3
DA
Sensors
IDA-n
IDA-1
IDA-2
IDA-3
IDA
Sensor-1
Sensor-2
Sensor-3
AgriCtl Board (SnsrCtl)
IDA-n
IDA-1
IDA-2
IDA-3
IDA
Actuators
IDA-n
ODF-1
ODF-2
ODF-3
DA
Relay-1
Relay-2
Relay-3
AgriCtl Board (ActrCtl)
IoTtalk
Engine
ArgiGUI
5
6
2
7
AgriTalk
Server
10 12 13Cloud

9.
AgriCtl Board

10.
IDF-n
IDF-1
IDF-2
IDF-3
DA
Sensors
IDA-n
IDA-1
IDA-2
IDA-3
IDA
Sensor-1
Sensor-2
Sensor-3
AgriCtl Board (SnsrCtl)
IDA-n
IDA-1
IDA-2
IDA-3
IDA
Actuators
IDA-n
ODF-1
ODF-2
ODF-3
DA
Relay-1
Relay-2
Relay-3
AgriCtl Board (ActrCtl)
IoTtalk
Engine
ArgiGUI
5
6
1 2
3 4
7
AgriTalk
Server
10 11 12 13Cloud

11.
1
2
Relay Board
Power
Board

12.
Fertilizer
Pestcide
Pump
4
Water
3
5
6

13.
4
6
1
4
6
3
2
5
7
8

14.
IDF-n
IDF-1
IDF-2
IDF-3
DA
Sensors
IDA-n
IDA-1
IDA-2
IDA-3
IDA
Sensor-1
Sensor-2
Sensor-3
AgriCtl Board (SnsrCtl)
IDA-n
IDA-1
IDA-2
IDA-3
IDA
Actuators
IDA-n
ODF-1
ODF-2
ODF-3
DA
Relay-1
Relay-2
Relay-3
AgriCtl Board (ActrCtl)
IoTtalk
Engine
ArgiGUI
5
6
1 2
3 4
7
8
AgriTalk
Server
10 11 12 13Cloud

15.
2
1
3

16.
IDF-n
IDF-1
IDF-2
IDF-3
DA
Sensors
IDA-n
IDA-1
IDA-2
IDA-3
IDA
Sensor-1
Sensor-2
Sensor-3
AgriCtl Board (SnsrCtl)
IDA-n
IDA-1
IDA-2
IDA-3
IDA
Actuators
IDA-n
ODF-1
ODF-2
ODF-3
DA
Relay-1
Relay-2
Relay-3
AgriCtl Board (ActrCtl)
IoTtalk
Engine
ArgiGUI
5
6
1 2
3 4
7
8 9
AgriTalk
Server
10 11 12 13Cloud

17.
1
2
4
3
Alert trigger
point
5

18.
1
2
Voltage
Current
Power

19.
Relationship between concentration of salt
and EC can be described as a quadratic
equation.
By using this concept, we first derived
general equations to describe the
relationship between the EC as the input and
the Nitrogen (N), the Phosphorus (P) and the
Potassium (K) values as the outputs.

20.
Then we constructed experiments in Bao
fields with various combinations of N, P, K
and measured the EC values to calibrate the
general equations.
Finally, the equations of N, P, K were
generated as below.
fN(x) = 63.2526x2+14.2132x +0.1797

21.
SoilSensor
WeatherSTA
Timer
Irrigation
RepellentBulb
PestSpray
1
2
3
4
5
6
8 7

22.
Line 1
Line 2
Line 3
Line 4
Line 5
Line 6
Line 7

23.
SoilSensor
WeatherSTA
Timer
Irrigation
RepellentBulb
PestSpray
1
2
3
4
5
6
8 7

24.
Repellent Bulb on
寶山二場
捕蟲罐與驅蟲燈之關係
驅蟲燈開啟時段 18:30~5:00
蟲計數在12:00時歸零
𝜏3 𝜏4 𝜏7 𝜏8 𝜏10 𝜏11𝜏0
𝜏1
𝜏2
𝜏5
𝜏6 𝜏9
Bulb on Bulb on Bulb on
Bulb offBulb off Bulb off

25.
Soil Moisture
Comparison
是IoTtalk的sensor
是阿龜的sensor
Soil Moisture
Comparison
寶山二場土壤濕度

26.
(a) Before use (May 15, 2018) (b) After use (June, 4, 2018)

27.
Traditional
SPAD: 20.0
AgriTalk
SPAD: 31.9

28.
AgriTalk
SPAD: 35.4
Traditional
SPAD: 21.2

29.
Traditional
SPAD: 30.3
AgriTalk
SPAD: 43.5

30.
SoilSensor1
SoilSensor2
Irrigation
Test
Test
StdSensor
Moisture-I
Moisture-I
Moisture-I
Drip1-O
Drip2-O
Test1-O
Test2-O
Display1-O
Display2-O
Result1-I
Result2-I
Smartphone
1
2
3
4
5
6 7

31.
MorSensor
Chip

32.
Soil Moisture
Comparison
是IoTtalk的sensor
是阿龜的sensor
寶山二場土壤濕度