Kingdom of Saudi Arabia King Saud University College of Food and

Agricultural sciences

Agricultural Engineering Dept

MICROPROCESSOR UNIT FOR MONITORING MICROPROCESSOR UNIT FOR MONITORING ON-ROAD STABILTY FOR AGRICULTURAL ON-ROAD STABILTY FOR AGRICULTURAL

TRACTORS BASED ONTRACTORS BASED ON MS VISUAL C++MS VISUAL C++

Abdulrahman A. Al-JanobiKing Saud UniversityRiyadh, Saudi Arabiajanobi@ksu.edu.sa

King Saud UniversityKing Saud University

College of Agriculture was established in College of Agriculture was established in 1965.1965.

Department of Agricultural Engineering was Department of Agricultural Engineering was established in 1980established in 1980

We have 18 faculty members (power & We have 18 faculty members (power & machinery, Irrigation, Food processing, machinery, Irrigation, Food processing, environment engineering)environment engineering)

IntroductionImplement Connection

IntroductionImplement Connection

Tractor Jobs

Off Road

Tractor Performance: To get the most from the tractor.

On Road

Stability and Safety

The Importance of Stability and The Importance of Stability and safetysafety

The Importance of Stability and The Importance of Stability and safetysafety

The instrumented tractorThe instrumented tractor

Instrumented TractorInstrumented Tractor

In 1994, we established an In 1994, we established an instrumented tractor.instrumented tractor.

The tractor was improved The tractor was improved during these 11 years.during these 11 years.

Objective

The objective of this project was to develop a microprocessor unit for monitoring On-Road stability for agricultural

tractors with mounted implements

using MS Visual C++.

MICROPROCESSOR UNITMICROPROCESSOR UNIT

HardwareHardware

SoftwareSoftware

MICROPROCESSOR UNIT FOR MONITORING ON-ROAD STABILTY FOR AGRICULTURAL TRACTORS

BASED ON MS VISUAL C++HARDWARE

Data Collection Unit

Distributed Box

DBK11

DBK13

Torque on Rear Wheel

Torque on Front Wheel

Forces on TPL Stability

MICROPROCESSOR UNIT

FWS

RWS

5th S

r.p.m

Fuel

MICROPROCESSOR UNIT FOR MONITORING ON-ROAD STABILTY FOR AGRICULTURAL TRACTORS

BASED ON MS VISUAL C++HARDWARE

Data Collection Unit

Distributed Box

DBK11

DBK13

Torque on Rear Wheel

Torque on Front Wheel

Forces on TPL Stability

MICROPROCESSOR UNIT

FWS

RWS

5th S

r.p.m

Fuel

SOFTWARE

Torque on Front Wheel

Torque on Rear Wheel

Forces on TPL

Stability

Stability

Fifth Wheel

Engine Speed

Fuel Sensor

Distributed Unit

MICROPROCESSOR UNIT

Processing Unit

ASUS L4 SERIES P4ASUS L4 SERIES P4

speed of 2.4 GHzspeed of 2.4 GHz

40 G Byte hard Disk40 G Byte hard Disk

memory with 56MBytememory with 56MByte

start

Information about Experiment

Tractor Information

Convert data to values based on

Calibration

Calculate the performance

Save Data as Input File

Save Data as output file

Present Data in Figures, value, and indicator

End

Save the reading in Raw File

Receive Data from Sensors

Off Road

start

Tractor Information

Convert data to values based on

Calibration

Calculate the performance

Save Converted data

Save Data as output file

Present Data in Figures, value, and indicator

End

Istractor angle

critical Warning

Save Data in Raw File

Data from Sensors

Yes

No

On Road

Experiment information

Advantages of the unit

2699 mm

Wheel base

Wt

Wi920 mm

Φ

990 mm

1740 mm

1014 mm

Advantages of the unit

About 10 reading per secondAbout 10 reading per second12 bit accuracy12 bit accuracyClear warning for the driverClear warning for the driverPossibility to send a signal to stop tractorPossibility to send a signal to stop tractor

With this design, we may be able to reduce tractor

accidence

and improve the performance of the tractor

EndEnd