Fuzzy Logic Control In Elevator Essay
Fuzzy Logic Control to detect Elevator Failure
Abstract:
Computer Logic relates to limited states. It is rigorous and deterministic. In simple words, Boolean logic makes use of 0 and 1 i.e. it has only 2 states either FALSE or TRUE but, Fuzzy logic uses the logical values between 0 and 1. It relies on common sense representing imprecise terms. This research represents the application of fuzzy logic in elevators. Fuzzy logic control in elevator will give an indication of lift failure before actual failure takes place and elevator stops working. Variety of Elevator accidents take place which include sudden stops, abrupt landings, floor shifting, contamination and noisy bearings. All of these malfunctions can be prevented if proper analysis
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The fuzzy logic will be applicable for Machine-Room-Less Elevators or traction Elevators. Some problems of elevators includes sudden stops, failure to open doors, abrupt landings, power failures and floor shifting.
Our research includes some main problems and provided are the solutions for each problem which also mentions the existing scenario:
Detection of Dirt for lubrication
Problem:
At the very top, there’s an electric motor with a wheel around which cable wires are wrapped. When the wear of cable wire occurs, small metal particles gets accumulated in the oil which leads to improper functioning of the elevator. Improper lubrication leads to contamination. For this, an oil analysis need to be done which will indicate contamination and wear inside the motor.
Because of dirt accumulation on wheel speed of the elevator decreases and the cable wire does not move smoothly over the wheel and brings the Elevator at halt.
Solution:
Fuzzy Dirt Sensor will be placed near the wheel or electric motor which with such a logic that will have speed of the wheel as input. Depending on the speed of the wheel the dirt sensor will recognize that amount of friction and movement of
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