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Electric sofa anti-clamping method based on electric curve

An electric sofa technology, which is applied to sofas, couch, and other seating furniture, can solve the problems of poor anti-pinch function of electric sofas, improve anti-pinch efficiency and flexibility, realize anti-pinch function, and meet real-time The effect of sexual demands

Active Publication Date: 2019-01-18
刘盛荣
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In view of the above problems, the present invention proposes an anti-pinch method for electric sofas based on electrical curves to solve the problem of poor anti-pinch function of existing electric sofas

Method used

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  • Electric sofa anti-clamping method based on electric curve
  • Electric sofa anti-clamping method based on electric curve
  • Electric sofa anti-clamping method based on electric curve

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0070] Please refer to figure 1 , figure 1 It is a method flow chart of the anti-pinch method (hereinafter referred to as "anti-pinch method") of an electric sofa based on the electrical curve in Embodiment 1 of the present invention. Anti-pinch methods include:

[0071] S101. Obtain the original current waveform data of the motor of the electric sofa.

[0072] Furthermore, when the motor of the electric sofa is running and rotating, the control unit acquires the original current waveform data of the motor of the electric sofa. Control components may include timers, analog-to-digital converters, direct memory access controllers, and central controllers.

[0073] In one embodiment, the original current waveform data is obtained through a timer, an analog-to-digital converter, and a direct memory access controller (DMA, direct memory access), and the original current waveform data is transmitted to the central controller by the direct memory access controller , wherein the r...

Embodiment 2

[0099] Please refer to figure 2 , figure 2 It is a method flow chart of the anti-pinch method (hereinafter referred to as "anti-pinch method") of the electric sofa based on the electrical curve according to Embodiment 2 of the present invention. For S101 , S103 , S105 , and S107 , please refer to the description of Embodiment 1, and details will not be repeated here. Anti-pinch methods include:

[0100] S102. Execute data stream preprocessing, including:

[0101] Filter and denoise the original current waveform data by fast iterative sorting method, filter and denoise the second number of median filter samples of the original current waveform to obtain the third number of median filters, and extract the third number of median filters The average value of is the effective data point to generate the original current waveform data that reduces capacity and reduces abnormal burrs;

[0102] The wave head of the original current waveform data is identified and blanked, so as t...

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Abstract

The present invention discloses an electric sofa anti-clamping method based on an electric curve. The method comprises the following steps: obtaining original current waveform data of a motor of an electric sofa; extracting a current characteristic current waveform via current calculation, differential current calculation or integral current calculation according to the original current waveform data; matching the current characteristic current waveform with a standard library current waveform according to a similarity calculation formula, and selecting a differential current standard waveformand an integral current standard waveform; calculating the waveform difference value between the current characteristic current waveform and the standard library current waveform and the waveform difference value between the differential current standard waveform and the integral current standard waveform via a difference formula according to local curve fitting; and when the waveform differencevalue(s) are greater than a threshold, sending alarm information. The electric sofa anti-clamping method based on the electric curve can effectively realize the anti-clamping function of the electricsofa.

Description

technical field [0001] The invention relates to the technical field of smart home appliances, in particular to an anti-pinch method for an electric sofa based on an electrical curve. Background technique [0002] At present, the intelligentization of the furniture industry has become a trend, and various electric sofas and reclining chairs are emerging. While electric sofas and recliners bring us comfort, they also hide dangers. Electric sofas and other equipment will cause serious injuries once people or animals are caught. However, most electric sofas, electric recliners, etc. on the market today do not have anti-pinch functions. [0003] In the prior art, it has been seen that infrared sensing is used to detect whether there is an object intrusion. Then take anti-trap action. This approach has the following disadvantages: [0004] 1. The false detection rate is high. The characteristics of infrared sensing technology determine that there is a certain false detection ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B19/042G01R19/25A47C17/86
CPCA47C17/86G01R19/25G05B19/042
Inventor 刘盛荣王想
Owner 刘盛荣
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