Electric lifting platform control method capable of realizing rollback when meeting resistance

Abstract

The invention relates to the technical field of electric lifting platforms, in particular to an electric lifting platform control method capable of realizing rollback when meeting resistance, The electric lifting platform control method comprises the following steps: S1, detecting the state of the lifting platform at a time interval of X, if the lifting platform is in the static state, skipping toS2, and if the lifting platform is in the moving state, skipping to S3; S2, reading the magnitude of angular velocity and/or acceleration magnitude of a multi-axis motion sensor, taking the magnitudeof angular velocity and/or acceleration magnitude of the multi-axis motion sensor as reference values, and then returning to S1; and S3, reading the magnitude of angular velocity and/or accelerationmagnitude of the multi-axis motion sensor, comparing the read values with the reference values, if the changing value after comparison exceeds the set threshold value, judging that the platform meetsresistance, controlling the lifting platform to stop or carry out rollback action, if the changing value after comparison does not exceed the set threshold value, judging that the lifting platform does not meet resistance, and returning to S1. The false triggering rate of the lifting platform controlled through the control method is lower and the judgement precision rate is higher.

Description

technical field [0001] The invention relates to the technical field of electric lifting platforms, in particular to a control method for an electric lifting platform that realizes retreat in case of resistance. Background technique [0002] Electric lifting platforms are generally used in residential, office and medical fields, such as height-adjustable desks, dining tables, tatami mats, desks, medical beds, etc. When the user adjusts the lifting platform, if the platform or its frame encounters an obstacle, it may damage the obstacle or the structure of the platform itself, and if the collision is really squeezed to the human body, it may cause personal injury. [0003] Most of the lifting platforms on the market that implement the function of falling back in case of resistance use the following methods: detect resistance by detecting the change of current during the collision process, but the sensitivity of current detection is low, greatly affected by the structure and te...

AI Technical Summary

Problems solved by technology

When the user adjusts the lifting platform, if the platform or its frame encounters an obstacle, it may damage the obstacle or the structure of the platform itself. If the collision goods are really squeezed to the human body, it may cause personal injury

[0003] Most of the lifting platforms on the market that implement the function of falling back in case of resistance use the following methods: detect resistance by detecting the change of current during the collision process, but the sensitivity of current detection is low, greatly affected by the structure and technology, and the reliability is poor The problem

Therefore, there are also some lifting platforms in the prior art that use other methods to detect obstacles, such as the Chinese patent, the announcement number is CN 207115083, which is called a kind of electric lifting platform that can be retracted when encountering obstacles. It uses multi-axis sensors to detect obstacles. However, when the above-mentioned patent is in a static state, if there is a possibility of false triggering if there is vibration or shaking, and the reference value of the above-mentioned patent is set, if the lifting platform moves, the system is still using the original setting. baseline value, which may lead to inaccurate judgments

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