Abstract
The paper presents the working principle of the alcohol sensor, which is connected to the on/off switch on the chainsaw. The alcohol sensor switches off the chainsaw via the transmitter and receiver, if it detects that the worker is under the influence of alcohol. The connection between the transmitter and the receiver is remote, via radio waves. The alcohol sensor contains a mesh that heats up due to 5V voltage impact and reacts to alcohol vapors. This reaction is an incentive to send a signal from the transmitter to the receiver. Blockage - switching off of the chainsaw occurs when a short circuit is made between the power supply and ground. This short circuit also occurs when the chainsaw stop switch is manually switched to the "0" state. By using an alcohol sensor, a transmitter and a receiver, the "0" state on the switch is achieved wirelessly. The receiver (relay) makes a short circuit instead of a switch, which causes the chainsaw to stop working. This way of stopping the chainsaw indirectly protects the worker from injuries due to alcohol consumption.
Highlights
AN INNOVATIVE CHAINSAW BLOCKAGE METHOD USING ALCOHOL DETECTIONPredrag Vasiljević, Public Enterprise “Srbijašume”, Forest unit ”Severni Kučaj”, Kučevo, Serbia Dr Milorad Danilović, full professor, University of Belgrade - Faculty of Forestry MSc Slavica Antonić, assistant, University of Belgrade - Faculty of Forestry MSc Vladimir Ćirović, assistant, University of Belgrade - Faculty of Forestry ďƐƚƌĂĐƚdŚĞƉĂƉĞƌƉƌĞƐĞŶƚƐƚŚĞǁŽƌŬŝŶŐƉƌŝŶĐŝƉůĞŽĨƚŚĞĂůĐŽŚŽůƐĞŶƐŽƌǁŚŝĐŚŝƐĐŽŶŶĞĐƚĞĚ ƚŽƚŚĞŽŶͬŽīƐǁŝƚĐŚŽŶƚŚĞĐŚĂŝŶƐĂǁdŚĞĂůĐŽŚŽůƐĞŶƐŽƌƐǁŝƚĐŚĞƐŽīƚŚĞĐŚĂŝŶƐĂǁǀŝĂƚŚĞ ƚƌĂŶƐŵŝƩĞƌĂŶĚƌĞĐĞŝǀĞƌŝĨŝƚĚĞƚĞĐƚƐƚŚĂƚƚŚĞǁŽƌŬĞƌŝƐƵŶĚĞƌƚŚĞŝŶŇƵĞŶĐĞŽĨĂůĐŽŚŽůdŚĞ ĐŽŶŶĞĐƟŽŶďĞƚǁĞĞŶƚŚĞƚƌĂŶƐŵŝƩĞƌĂŶĚƚŚĞƌĞĐĞŝǀĞƌŝƐƌĞŵŽƚĞǀŝĂƌĂĚŝŽǁĂǀĞƐdŚĞĂůĐŽŚŽů ƐĞŶƐŽƌĐŽŶƚĂŝŶƐĂŵĞƐŚƚŚĂƚŚĞĂƚƐƵƉĚƵĞƚŽρsǀŽůƚĂŐĞŝŵƉĂĐƚĂŶĚƌĞĂĐƚƐƚŽĂůĐŽŚŽůǀĂƉŽƌƐ dŚŝƐƌĞĂĐƟŽŶŝƐĂŶŝŶĐĞŶƟǀĞƚŽƐĞŶĚĂƐŝŐŶĂůĨƌŽŵƚŚĞƚƌĂŶƐŵŝƩĞƌƚŽƚŚĞƌĞĐĞŝǀĞƌůŽĐŬĂŐĞͲ ƐǁŝƚĐŚŝŶŐŽīŽĨƚŚĞĐŚĂŝŶƐĂǁŽĐĐƵƌƐǁŚĞŶĂƐŚŽƌƚĐŝƌĐƵŝƚŝƐŵĂĚĞďĞƚǁĞĞŶƚŚĞƉŽǁĞƌƐƵƉƉůLJ ĂŶĚŐƌŽƵŶĚdŚŝƐƐŚŽƌƚĐŝƌĐƵŝƚĂůƐŽŽĐĐƵƌƐǁŚĞŶƚŚĞĐŚĂŝŶƐĂǁƐƚŽƉƐǁŝƚĐŚŝƐŵĂŶƵĂůůLJƐǁŝƚĐŚĞĚ ƚŽƚŚĞ͞ϬƐƚĂƚĞLJƵƐŝŶŐĂŶĂůĐŽŚŽůƐĞŶƐŽƌĂƚƌĂŶƐŵŝƩĞƌĂŶĚĂƌĞĐĞŝǀĞƌƚŚĞ͞ϬƐƚĂƚĞŽŶƚŚĞ ƐǁŝƚĐŚŝƐĂĐŚŝĞǀĞĚǁŝƌĞůĞƐƐůLJdŚĞƌĞĐĞŝǀĞƌ;ƌĞůĂLJͿŵĂŬĞƐĂƐŚŽƌƚĐŝƌĐƵŝƚŝŶƐƚĞĂĚŽĨĂƐǁŝƚĐŚ ǁŚŝĐŚĐĂƵƐĞƐƚŚĞĐŚĂŝŶƐĂǁƚŽƐƚŽƉǁŽƌŬŝŶŐdŚŝƐǁĂLJŽĨƐƚŽƉƉŝŶŐƚŚĞĐŚĂŝŶƐĂǁŝŶĚŝƌĞĐƚůLJƉƌŽͲ ƚĞĐƚƐƚŚĞǁŽƌŬĞƌĨƌŽŵŝŶũƵƌŝĞƐĚƵĞƚŽĂůĐŽŚŽůĐŽŶƐƵŵƉƟŽŶ
INTRODUCTION&ŽƌĞƐƚƌLJǁŽƌŬŝƐĐŽŶƐŝĚĞƌĞĚ͞ĚŝĸĐƵůƚĂŶĚĚĂŶͲ ŐĞƌŽƵƐͲĂŶĚƐŽŵĞƟŵĞƐĚĞĂĚůLJ;'Ăƌů ĂŶĚϮϬϭΘͿ dŚĞƌĂƚĞŽĨŝŶũƵƌŝĞƐŝŶĨŽƌĞƐƚƌLJŝƐƐŝŐŶŝĮĐĂŶƚůLJŚŝŐŚͲ Ğƌ ƚŚĂŶ ŝŶ ŽƚŚĞƌ ƐĞĐƚŽƌƐ ƚŚĂƚ ĂƌĞ ĐŽŶƐŝĚĞƌĞĚ ƚŽ ŝŶĚƵĐĞŚŝŐŚƌŝƐŬĞŐƚŚĞĨĂƚĂůŝŶũƵƌLJƌĂƚĞŝŶh^͘ ĨŽƌĞƐƚƌLJǁĂƐϭεƟŵĞƐŚŝŐŚĞƌƚŚĂŶŝŶŽƚŚĞƌƐĞĐƚŽƌƐ ĐŽŶĮƌŵŝŶŐƚŚĂƚĨŽƌĞƐƚƌLJǁŽƌŬŝƐǀĞƌLJĚĂŶŐĞƌŽƵƐ ĂŶĚ ƚŚĂƚ ƉĞŽƉůĞ ǁŽƌŬŝŶŐ ŽŶ ĐƵƫŶŐ ĂŶĚ ĨĞůůŝŶŐ ƚƌĞĞƐĂƌĞƚŚĞŵŽƐƚǀƵůŶĞƌĂďůĞ; Ğů ů ϮϬϬϮ> ĞĨŽ ƌƚ et al.ϮϬϬϯͿ^ŝŵŝůĂƌƌĞƐƵůƚƐǁĞƌĞŽďƚĂŝŶĞĚŝŶ^ĞƌďŝĂ ďLJ ĂŶŝůŽǀŝđ et al.;ϮϬϭκͿ/ƚǁĂƐĨŽƵŶĚƚŚĂƚƚŚĞ ůĂƌŐĞƐƚƐŚĂƌĞŽĨŝŶũƵƌĞĚǁŽƌŬĞƌƐŝŶĨŽƌĞƐƚƵƟůŝnjĂƟŽŶ ǁĞƌĞǁŽƌŬĞƌƐǁŚŽƉĞƌĨŽƌŵƚƌĞĞĐƵƫŶŐĂŶĚĨĞůůŝŶŐ ;ςΘйͿĨŽůůŽǁĞĚďLJĨŽƌĞƐƚǁŽƌŬĞƌƐ;ϮϬйͿƚƌĂĐƚŽƌ ĚƌŝǀĞƌƐ;ΘйͿůŽĂĚĞƌƐ;ϯйͿĂŶĚƚƌƵĐŬĚƌŝǀĞƌƐ;ϭйͿ dŚƵƐǁŽƌŬĞƌƐĞŶŐĂŐĞĚŝŶƚƌĞĞĐƵƫŶŐĂŶĚĨĞůůŝŶŐ ĂŶĚǁŽŽĚĂƐƐŽƌƚŵĞŶƚƉƌŽĚƵĐƟŽŶĂƌĞŵŽƐƚĂƚƌŝƐŬ ǁŚĞŶŝƚĐŽŵĞƐƚŽŝŶũƵƌŝĞƐĂƚǁŽƌŬ.
^ŝŵŝůĂƌ ĚĞǀŝĐĞƐ ĂƌĞ ƵƐĞĚ ŝŶ ƚŚĞ ƐŽͲĐĂůůĞĚ ͞^ŵĂƌƚ ,ĞůŵĞƚ ĨŽƌ ŵŽƚŽƌĐLJĐůĞƐ ;sŝũĂLJĂŶ et alϮϬϭκdĂ ƉĂĚĂƌ et alϮϬϭΘ: ĞƐƵĚŽƐƐ et al ϮϬϭεZĂŚŵĂŶet alϮϬϮϬͿdŚĞƐĞƐŵĂƌƚŚĞůŵĞƚƐ ĂůƐŽĨĞĂƚƵƌĞĂůĐŽŚŽůĚĞƚĞĐƚŽƌƐƚŚĂƚƌĞƐƉŽŶĚƚŽƚŚĞ ͞ďƌĞĂƚŚƉƌŝŶĐŝƉůĞĂŶĚĂƌĞĐŽŶŶĞĐƚĞĚƚŽƚŚĞĞŶͲ ŐŝŶĞ/ĨƚŚĞƐĞŶƐŽƌĚĞƚĞĐƚƐĂůĐŽŚŽůƚŚĞŵŽƚŽƌĐLJĐůĞ ĞŶŐŝŶĞ ĐĂŶŶŽƚ ďĞ ĂĐƟǀĂƚĞĚ /Ŷ ĂĚĚŝƟŽŶ Ă ƐŝŵŝͲ ůĂƌ ĚĞǀŝĐĞ ŝƐ ĐŽŶƐƚƌƵĐƚĞĚ ŝŶ ĐĂƌƐ ĂŶĚ ƚŚĞ ƐĞŶƐŽƌ ŝƐƉůĂĐĞĚŽŶƚŚĞƐƚĞĞƌŝŶŐǁŚĞĞůǁŚĞƌĞŝƚŚĂƐƚŚĞ ĂďŝůŝƚLJ ƚŽ ĐŽŶƟŶƵŽƵƐůLJ ĐŚĞĐŬ ƚŚĞ ĂůĐŽŚŽů ůĞǀĞůƐ ĨƌŽŵƚŚĞĚƌŝǀĞƌƐďƌĞĂƚŚĂƌŝŐŶŝƟŽŶŝƐĚŝƐĂďůĞĚ ŝĨ ƚŚĞ ƐĞŶƐŽƌƐ ĚĞƚĞĐƚ ƚŚĞ ĂůĐŽŚŽů ĐŽŶƚĞŶƚ ŝŶ ƚŚĞ ĚƌŝǀĞƌƐďƌĞĂƚŚ/ŶĐĂƐĞƚŚĞĚƌŝǀĞƌŐĞƚƐĚƌƵŶŬǁŚŝůĞ ĚƌŝǀŝŶŐƚŚĞƐĞŶƐŽƌǁŝůůĐŽŶƟŶƵĞƚŽĚĞƚĞĐƚĂůĐŽŚŽů ŝŶƚŚĞďƌĞĂƚŚĂŶĚƐƚŽƉƚŚĞĞŶŐŝŶĞ;' ďĞŶŐĂ Ă Ě Ă et al.ϮϬϭϳͿ^ŝŵŝůĂƌĚĞǀŝĐĞƐǁĞƌĞĐŽŶƐƚƌƵĐƚĞĚďLJ Ś Ƶ ƚĂ et al ;ϮϬϭϳͿ ĂŶĚ ^ ŚƵŬůĂ et al ;ϮϬϮϬͿ ǁŚŝĐŚǁŽƌŬŽŶƚŚĞƐĂŵĞƉƌŝŶĐŝƉůĞŽĨĂůĐŽŚŽůƐĞŶͲ ƐŽƌƐ ďƵƚ ǁŚŝĐŚ ĂůƐŽ ƐĞŶĚ ĚĂƚĂ ŽŶ ƚŚĞ ůŽĐĂƟŽŶ ǁŚĞƌĞƚŚĞǀĞŚŝĐůĞŝƐĐƵƌƌĞŶƚůLJůŽĐĂƚĞĚdŚĞďŝŐŐĞƐƚ ďĞŶĞĮƚŽĨƐƵĐŚĚĞǀŝĐĞƐŝƐƚŚĞĚĞƚĞĐƟŽŶŽĨĂůĐŽŚŽů ďLJ ƚŚĞ ĞŶŐŝŶĞ ůŽĐŬŝŶŐ ƐLJƐƚĞŵ ǁŚŝĐŚ ĐĂŶ ƐŝŐŶŝĮͲ ĐĂŶƚůLJŚĞůƉƉƌĞǀĞŶƚĂĐĐŝĚĞŶƚƐĚƵĞƚŽĚƌƵŶŬĚƌŝǀŝŶŐdŚĞĂŝŵŽĨƚŚŝƐƉĂƉĞƌŝƐƚŽƉƌĞƐĞŶƚƚŚĞǁŽƌŬ ĐŽŶĐĞƉƚŽĨĚĞǀŝĐĞƐĐŽŶƐŝƐƟŶŐŽĨĂŶĂůĐŽŚŽůƐĞŶƐŽƌ ƌĞĐĞŝǀĞƌĂŶĚƚƌĂŶƐŵŝƩĞƌǁŚŝĐŚĨƵŶĐƟŽŶƐŽŶƚŚĞ ďĂƐŝƐŽĨĐŚĂŝŶƐĂǁŽƉĞƌĂƟŽŶďůŽĐŬĂŐĞŝĨƚŚĞƐĞŶƐŽƌ ĚĞƚĞĐƚƐƚŚĞƉƌĞƐĞŶĐĞŽĨĂůĐŽŚŽů.
Summary
Predrag Vasiljević, Public Enterprise “Srbijašume”, Forest unit ”Severni Kučaj”, Kučevo, Serbia Dr Milorad Danilović, full professor, University of Belgrade - Faculty of Forestry MSc Slavica Antonić, assistant, University of Belgrade - Faculty of Forestry MSc Vladimir Ćirović, assistant, University of Belgrade - Faculty of Forestry ďƐƚƌĂĐƚdŚĞƉĂƉĞƌƉƌĞƐĞŶƚƐƚŚĞǁŽƌŬŝŶŐƉƌŝŶĐŝƉůĞŽĨƚŚĞĂůĐŽŚŽůƐĞŶƐŽƌǁŚŝĐŚŝƐĐŽŶŶĞĐƚĞĚ ƚŽƚŚĞŽŶͬŽīƐǁŝƚĐŚŽŶƚŚĞĐŚĂŝŶƐĂǁdŚĞĂůĐŽŚŽůƐĞŶƐŽƌƐǁŝƚĐŚĞƐŽīƚŚĞĐŚĂŝŶƐĂǁǀŝĂƚŚĞ ƚƌĂŶƐŵŝƩĞƌĂŶĚƌĞĐĞŝǀĞƌŝĨŝƚĚĞƚĞĐƚƐƚŚĂƚƚŚĞǁŽƌŬĞƌŝƐƵŶĚĞƌƚŚĞŝŶŇƵĞŶĐĞŽĨĂůĐŽŚŽůdŚĞ ĐŽŶŶĞĐƟŽŶďĞƚǁĞĞŶƚŚĞƚƌĂŶƐŵŝƩĞƌĂŶĚƚŚĞƌĞĐĞŝǀĞƌŝƐƌĞŵŽƚĞǀŝĂƌĂĚŝŽǁĂǀĞƐdŚĞĂůĐŽŚŽů ƐĞŶƐŽƌĐŽŶƚĂŝŶƐĂŵĞƐŚƚŚĂƚŚĞĂƚƐƵƉĚƵĞƚŽρsǀŽůƚĂŐĞŝŵƉĂĐƚĂŶĚƌĞĂĐƚƐƚŽĂůĐŽŚŽůǀĂƉŽƌƐ dŚŝƐƌĞĂĐƟŽŶŝƐĂŶŝŶĐĞŶƟǀĞƚŽƐĞŶĚĂƐŝŐŶĂůĨƌŽŵƚŚĞƚƌĂŶƐŵŝƩĞƌƚŽƚŚĞƌĞĐĞŝǀĞƌůŽĐŬĂŐĞͲ ƐǁŝƚĐŚŝŶŐŽīŽĨƚŚĞĐŚĂŝŶƐĂǁŽĐĐƵƌƐǁŚĞŶĂƐŚŽƌƚĐŝƌĐƵŝƚŝƐŵĂĚĞďĞƚǁĞĞŶƚŚĞƉŽǁĞƌƐƵƉƉůLJ ĂŶĚŐƌŽƵŶĚdŚŝƐƐŚŽƌƚĐŝƌĐƵŝƚĂůƐŽŽĐĐƵƌƐǁŚĞŶƚŚĞĐŚĂŝŶƐĂǁƐƚŽƉƐǁŝƚĐŚŝƐŵĂŶƵĂůůLJƐǁŝƚĐŚĞĚ ƚŽƚŚĞ͞ϬƐƚĂƚĞLJƵƐŝŶŐĂŶĂůĐŽŚŽůƐĞŶƐŽƌĂƚƌĂŶƐŵŝƩĞƌĂŶĚĂƌĞĐĞŝǀĞƌƚŚĞ͞ϬƐƚĂƚĞŽŶƚŚĞ ƐǁŝƚĐŚŝƐĂĐŚŝĞǀĞĚǁŝƌĞůĞƐƐůLJdŚĞƌĞĐĞŝǀĞƌ;ƌĞůĂLJͿŵĂŬĞƐĂƐŚŽƌƚĐŝƌĐƵŝƚŝŶƐƚĞĂĚŽĨĂƐǁŝƚĐŚ ǁŚŝĐŚĐĂƵƐĞƐƚŚĞĐŚĂŝŶƐĂǁƚŽƐƚŽƉǁŽƌŬŝŶŐdŚŝƐǁĂLJŽĨƐƚŽƉƉŝŶŐƚŚĞĐŚĂŝŶƐĂǁŝŶĚŝƌĞĐƚůLJƉƌŽͲ ƚĞĐƚƐƚŚĞǁŽƌŬĞƌĨƌŽŵŝŶũƵƌŝĞƐĚƵĞƚŽĂůĐŽŚŽůĐŽŶƐƵŵƉƟŽŶ
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