Anti-pinch device for electric sofa based on electrical curve
An anti-pinch device and electric technology, which is applied to sofas, couch, program control, etc., can solve the problems such as poor anti-pinch function of electric sofas
Active Publication Date: 2020-10-27
刘盛荣
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Problems solved by technology
[0007] In view of the above problems, the present invention proposes an anti-pinch device for electric sofas based on electrical curves to solve the problem of poor anti-pinch functions of existing electric sofas
Method used
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Embodiment 1
[0072] Please refer to figure 1 and Figure 1c , figure 1 It is a device flow chart of the anti-pinch device (hereinafter referred to as "anti-pinch device") of the electric sofa based on the electric property curve in Embodiment 1 of the present invention. Figure 1c It is a block diagram of the anti-pinch device of the electric sofa based on the electrical curve according to Embodiment 1 of the present invention. The anti-pinch device 100 includes a control component 101 and a motor 103 . The control component 101 is electrically connected to the motor 103 . exist Figure 1c Among them, the control component 101 includes a timer 1011, an analog-to-digital converter 1013, a direct memory access controller 1015, and a central controller 1017. The control component 101 also includes an electrical property detection circuit (not shown in the figure), which can be used to detect current, voltage or power.
[0073] The control component 101 acquires the original current wav...
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The invention discloses an anti-pinch device for electric sofas based on an electrical curve, which comprises a control component and a motor. The control component obtains the original current waveform data of the motor of an electric sofa; the control component extracts the current characteristic current waveform through current calculation, differential current calculation or integral current calculation according to the original current waveform data; the control component matches the current characteristic current waveform with current waveforms in a standard library according to a similarity calculation formula, and selects a differential current standard waveform and an integral current standard waveform; and the control component calculates the waveform difference values between the current characteristic current waveform and the current waveforms in the standard library and between the differential current standard waveform and the integral current standard waveform through adifference formula according to local curve fitting, wherein the control component sends out alarm information to the motor when the waveform difference values are greater than a threshold. The anti-pinch device for electric sofas based on an electrical curve disclosed by the invention realizes the anti-pinch function of electrical sofas.
Description
technical field [0001] The present invention relates to the technical field of smart home appliances, in particular to an anti-pinch device for electric sofas based on electrical curves. 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-pinch 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 detec...
Claims
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IPC IPC(8): G05B19/042G01R19/25A47C17/86
CPCA47C17/86G01R19/25G05B19/042
Inventor 刘盛荣
Owner 刘盛荣