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@article{200857,
        author = {PARASHANT RAJARAM PATIL and HARSHAL DIPAK RANALKAR and ABHISHEK BHARAT BHALKARE and OM SAMADHAN PATIL and SHUBHAM PRAMOD WAGH},
        title = {Lift Door Sensor Malfunction},
        journal = {International Journal of Innovative Research in Technology},
        year = {2026},
        volume = {12},
        number = {12},
        pages = {2737-2741},
        issn = {2349-6002},
        url = {https://ijirt.org/article?manuscript=200857},
        abstract = {Elevator safety is a critical concern in modern buildings, where lift systems are required to operate reliably under continuous usage and varying environmental conditions. Among the various safety components used in elevators, lift door sensors play a vital role in preventing accidents by detecting the presence of passengers or obstacles during door operation. However, failures such as sensor misalignment, dust accumulation, wiring faults, electrical interference, and component aging can lead to improper sensor functioning, thereby compromising passenger safety and system reliability. Conventional lift systems primarily focus on obstacle detection and lack dedicated mechanisms to continuously monitor sensor health and detect malfunction conditions in real time. This project presents a Lift Door Sensor Malfunction Detection and Safety System designed to enhance elevator safety by identifying abnormal sensor behavior and enforcing fail-safe operation. The proposed system continuously monitors door sensor signals and validates them against door position feedback and time-based constraints using a PLC or microcontroller-based control unit. Sensor malfunctions such as continuous ON or OFF signals, delayed response, and signal mismatch are accurately detected, and appropriate safety actions including lift immobilization, door control restriction.},
        keywords = {Lift Safety System, Elevator Door Sensor, Sensor Malfunction Detection, Elevator Safety Mechanism, Fault Detection System},
        month = {May},
        }