Development of Electronic Ground Speed Sensor for Tractors
DOI:
https://doi.org/10.52151/jae2015523.1583Keywords:
Ground speed, microcontroller, tractor, radar sensor, digital displayAbstract
A microcontroller-based low-cost ground speed sensor was developed for agricultural tractors. The device consisting of a transparent disc and an optical slot sensor was fabricated to measure the number of revolutions per minute (rpm) of the tractor front wheel. The device was installed on the tractor kingpin, and connected with front wheel by flexible wire. The measured rpm of front wheel was fed to a programmed microcontroller where actual ground speed was calculated by multiplying the distance travelled by the front wheel in one revolution. A digital display of actual ground speed on the tractor’s dashboard was obtained. The performance of developed sensor was compared with the commercially available ground speed Radar Sensor (Dickey-John) at different loads and surface conditions. The developed sensor was found to perform well compared to the radar sensor
References
Brixius W W. 1987. Traction prediction equations for bias ply tires. ASAE Paper No. 87-1622, ASAE St. Joseph, MI 49085.
Downs H W; Hansen R W. 2005. Large Tractor Operation: Fallacies and Facts. Farm and Ranch Series, Colorado State University, No. 5.005.
Freeland R; Tompkins F; Wilhelm L. 1988. Portable instrumentation to study performance of lawn and garden ride-on tractors. ASAE Paper No. 88-1079, St. Joseph, Michigan.
Grisso R; Taylor R; Way T; Bashford L. 1991. Tractive performance of 18.4r46 and 18.4r42 radial tractor tires. ASAE Paper No. 91-1589, St. Joseph, Michigan.
Khalilian A; Hale S C; Garner H T; Dodd R. 1989. Comparison of four ground speed measurement techniques. ASAE Paper No. 89-1040, St. Joseph, Michigan.
Pranav P K; Pandey K P; Tewari V K. 2010. Digital wheel slipmeter for agricultural 2WD tractors. Comput. Electron. Agric., 73, 188–193.
Reed J; Turner P E. 1993. Slip measurement using dual radar guns. ASAE/CASE, paper No. 93-1031.
Thansandote A; Stuchly S S; Mladek J S; Shlosser H. 1977. A new slip monitor to traction equipment. Trans. ASAE, 20 (5), 851-856.
Vishwanathan R; Weckler P R; Solie J B; Stone M L. Ammual 2005. Evaluation of ground speed sensing devices under varying ground surface conditions. Paper No. 051087, ASAE Meeting, Tanpa Convention Centre, Florida, July 17-20.
Wang Z; Domier K W. 1989. Prediction of drawbar performance for a tractor with dual tires. Trans. ASAE, 32(5), 1529-1533.
Wismer R D; Luth H J. 1972. Off-Road traction prediction for wheeled vehicles. ASAE Paper No. 72-619, pp: 16.