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Testing and creation of a safety system to disengage the PTO of a tractor.

Authors
Venem-MT; Shutske-JM; Gilbert-WJ
Source
Appl Eng Agric 2006 Jan; 22(1):5-12
NIOSHTIC No.
20037649
Abstract
Production agriculture consistently ranks as one of the most dangerous U.S. industries. As a result, significant research has been devoted to reducing the number of agricultural injuries and deaths. This study involved the design and testing of a safety sensor system using off-the-shelf security sensors to detect people in the power take-off (PTO) hazard area between a self-unloading forage wagon and a tractor. A total of 288 tests with four different sensor technologies explored the reliability of human presence security sensors for operator detection. Test data were statistically analyzed to determine how the sensor technology, approach angle, and mounting height affected the distance of a person from the hazard at the time of detection. After sensor tests were completed, a working prototype shut-off system was created to disengage the PTO of a tractor if a person entered the PTO hazard area, causing the PTO to stop rotating. The shut-off system also sounded an audible alarm and initiated flashing of a strobe light after detection, signaling that a person had entered into the PTO hazard area.
Keywords
Accident-prevention; Accident-statistics; Agricultural-processes; Agricultural-workers; Agriculture; Analytical-processes; Demographic-characteristics; Engineering; Environmental-hazards; Epidemiology; Exposure-assessment; Exposure-levels; Exposure-methods; Farmers; Industrial-engineering; Injuries; Injury-prevention; Occupational-exposure; Occupational-hazards; Personal-protective-equipment; Pesticides-and-agricultural-chemicals; Protective-equipment; Protective-measures; Qualitative-analysis; Risk-analysis; Risk-factors; Safety-education; Safety-engineering; Safety-measures; Safety-practices; Safety-research; Statistical-analysis; Work-areas; Work-environment; Work-operations; Work-organization; Work-practices; Author Keywords: Safety; Injury; Sensor; Human presence detection; Entanglement
Contact
John M. Shutske, Department of Biosystems & Agricultural Engineering, 1390 Eckles Ave, University of Minnesota, St. Paul, MN 55108
Publication Date
20070601
Document Type
Journal Article
Email Address
shutske@umn.edu
Funding Type
Cooperative Agreement; Grant
Fiscal Year
2007
NTIS Accession No.
NTIS Price
Identifying No.
Cooperative-Agreement-Number-U07-CCU-507126; Grant-Number-T42-OH-008434
Issue of Publication
1
ISSN
0883-8542
Source Name
Applied Engineering in Agriculture
State
WI; MN
Performing Organization
Marshfield Clinic Research Foundation
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