Control program for elevator

The control program for lifting devices with integrated sensors and a central control unit addresses operational instability by accurately detecting abnormalities, ensuring stable and efficient operation.

JP7873561B2Active Publication Date: 2026-06-12FUJITA CO LTD
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Patent Information

Application Number
JP2022023184
Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
Filing Date
2022-02-17
Publication Date
2026-06-12
Estimated Expiration
2042-02-17

AI Technical Summary

Technical Problem

Existing lifting devices for building structures face instability due to worker experience variations leading to delayed or overlooked abnormalities, resulting in inefficient and potentially hazardous operations.

Method used

A control program for lifting devices that includes an operating state detection unit with load, oil temperature, hydraulic pressure, vibration, and noise sensors, coupled with a central control unit to determine normal or abnormal states and issue alarms, along with a database for condition modification.

Benefits of technology

Ensures stable and efficient operation by accurately detecting abnormalities, allowing timely adjustments and reducing operational delays, thereby enhancing safety and cost-effectiveness.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

To provide a control program of a lifting device capable of accurately understanding abnormalities based on the operating state of the lifting device and advantageous for stable and efficient operation of the lifting device.SOLUTION: A lifting device 14 is provided with an operating state detection unit 28 that detects its operating state. An operating state output step of causing an output device to output the detected operating state, an operating state determination step of determining whether the operating state of the lifting device 14 is normal or abnormal based on the detected operating state and predetermined determination conditions; and an alarm notification step of notifying an alarm when the operating state of the lifting device 14 is determined as abnormal, are executed. With the alarm, the occurrence of an abnormality in the operating state of lifting device 14 can be grasped and the operating state of the lifting device 14 can be accurately recognized based on the operating state output by the output device.SELECTED DRAWING: Figure 1
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Citation Information

Patent Citations

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