Leg sweeping action recognition method of leg sweeping induction device
A sensing device and motion recognition technology, applied in the field of scanning leg sensing devices, can solve the problems of long installation time, high installation environment requirements, large installation space, etc., to simplify the installation method, improve the detection sensitivity and reliability, and reduce the installation area. Effect
Pending Publication Date: 2020-10-09
领科汇智科技有限公司
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Problems solved by technology
[0004] This scheme uses two parallel wire-type sensing electrodes as the sensing unit, resulting in large installation space, high requirements for the installation environment, and many installation fixed points, resulting in complicated installation process and long installation time; two sensing electrodes are detected at the same time in the detection method A single capacitance change on the electrode is judged as a valid kicking action, so there is a high risk of false detection during the detection process
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[0026] In order to better understand the technical solutions of the present invention, the following will describe in detail through specific embodiments in conjunction with the accompanying drawings.
[0027] see figure 1 , the sensing device is an assembly product composed of a control unit and a sensing unit, and the sensing unit is used for sensing capacitance changes, including sensing electrodes A and sensing electrodes B. The control unit is a controller (MCU) used for detection, identification, judgment, and output. Including SOC (System on Chip), LDO (Low Dropout Linear Regulator), LIN (Local Interconnect Network), OC (Open Collector), RF (Radio Frequency).
[0028] The sensing unit includes at least two sensing electrodes arranged in a left and right layout,
[0029] The recognition of the user's leg-sweeping action and the determination of the user's intention to open and close the tailgate and / or side sliding door are based on the following methods,
[0030] A. ...
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The invention discloses a leg sweeping action recognition method of a leg sweeping induction device. The method comprises the following steps: detection, the two induction electrodes which are arranged in a left-right mode respectively induct the area A and the area B, the middle is M area, the M area has two conditions of cross induction, no induction or deliberate shielding, the three areas formthree effective induction areas with different capacitance distributions; in the leg sweeping process, the leg enters the induction area, the capacitance value of the induction electrode in the corresponding induction area is increased, a capacitance change threshold value is set, the capacitance change amount exceeds the set threshold value, the trigger state of the induction electrode is recorded as 1, the capacitance change amount does not exceed the set threshold value, and the trigger state of the induction electrode is recorded as 0. According to the invention, the overall installationarea is reduced, the installation method is simplified, and the detection sensitivity and reliability are improved.
Description
technical field [0001] The invention relates to a leg-sweeping action recognition method applied to a leg-sweeping induction device for automatic opening and closing of a tailgate and a side sliding door of an automobile. Background technique [0002] When the car user holds articles with both hands, it will be very inconvenient to open and close (hereinafter referred to as "opening and closing") a tailgate or a side sliding door (hereinafter referred to as "electric door"). [0003] The current kick sensor device used in the opening and closing function of automobile electric doors is designed as follows: two parallel wire-type sensing electrodes are used to connect to the control unit, installed in the rear bumper or under the side sliding door, and the control unit detects the user’s kick The capacitance change of the sensing unit caused by the foot movement recognizes the user's kicking action to determine the user's intention to open and close the electric door, and sen...
Claims
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Login to View More IPC IPC(8): B60R25/20
CPCB60R25/20B60R25/2054
Inventor 高志彪张晓伟谢思扬张瑞清
Owner 领科汇智科技有限公司