Open AccessAn innovative chainsaw blockage method using alcohol detection
Author(s) -
Predrag Vasiljevic,
Milorad Danilović,
Slavica Antonić,
Vladimir Ćirović
Publication year - 2021
Publication title -
glasnik šumarskog fakulteta - univerzitet u beogradu/glasnik šumarskog fakulteta
Language(s) - English
Resource type - Journals
eISSN - 2217-8600
pISSN - 0353-4537
DOI - 10.2298/gsf2124115v
Subject(s) - transmitter , electrical engineering , relay , alcohol , signal (programming language) , power (physics) , computer science , engineering , electronic engineering , telecommunications , chemistry , physics , channel (broadcasting) , biochemistry , quantum mechanics , programming language
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.