阅读说明：本技术 一种一体式感应装置 (Integrated induction device ) 是由 高志彪 张晓伟 李申飞 赵炎铭 于 2020-06-05 设计创作，主要内容包括：一体式感应装置,安装在近汽车尾门或侧滑门处,其特征在于,该感应装置包括感应单元和控制单元,感应单元至少设有两个感应电极,并以印刷电路板PCB布线的方式左、右两面设置,所述控制单元集成在该印刷电路板PCB的中间,分别通过印刷电路板PCB的布线连接于各感应电极。控制单元完成检测感应单元物理信号的变化、识别用户的扫腿动作、判定用户的启闭汽车尾门和/或侧滑门的意图,输出决策信号到汽车尾门和/或侧滑门控制器,实现汽车尾门和/或侧滑门的自动启闭。本发明减少了整体安装面积,简化了安装方法,提高检测灵敏度和可靠性。(Integral type induction system installs nearly car tail-gate or side sliding door department, its characterized in that, this induction system includes induction element and the control unit, and induction element is equipped with two response electrodes at least to set up with the mode left and right two sides of printed circuit board PCB wiring, the control unit integration is in each response electrode in the centre of this printed circuit board PCB, the wiring connection through printed circuit board PCB respectively. The control unit is used for detecting the change of the physical signal of the sensing unit, identifying the leg sweeping action of the user, judging the intention of the user for opening and closing the automobile tail door and/or the side sliding door, and outputting a decision signal to the automobile tail door and/or the side sliding door controller to realize the automatic opening and closing of the automobile tail door and/or the side sliding door. The invention reduces the whole installation area, simplifies the installation method and improves the detection sensitivity and reliability.)

1. Integral type induction system installs nearly car tail-gate or side sliding door department, its characterized in that, this induction system includes induction element and the control unit, and induction element is equipped with two response electrodes at least to set up with the mode left and right two sides of printed circuit board PCB wiring, the control unit integration is in each response electrode in the centre of this printed circuit board PCB, the wiring connection through printed circuit board PCB respectively.

2. The integrated induction device of claim 1, wherein: the shape of the induction electrode of the induction unit is rectangular, square, circular, triangular, rhombic, serpentine or special-shaped.

3. The integrated induction device of claim 1, wherein: the sensing device further comprises a wireless RF switching unit.

4. The integrated induction device of claim 1, wherein: the PCB is a hard board or a flexible board.

5. The integrated induction device of claim 1 or 3, wherein: the control unit is used for discerning user's leg sweep action, judges user's the intention of opening and close the electrically operated gate, includes:

A. induction: the method comprises the following steps that two induction electrodes respectively induce an area A and an area B, the middle is an area M, the area M has two conditions of cross induction, no induction or intentional shielding, 3 areas form 3 effective induction areas with different capacitance distribution, in the leg sweeping process, a leg enters the induction areas, 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 induction electrode triggering state is recorded as 1, the capacitance change amount does not exceed the set threshold value, and the induction electrode triggering state is recorded as 0;

B. identification: the triggering state of the induction electrode corresponding to each induction area identifies the leg sweeping action of the user through the detected triggering state of the induction electrode, and the change of the triggering value of the induction electrode corresponding to the leg sweeping action is effectively changed;

C. judging, namely accurately judging the intention of the user according to calibration data by detecting the change and effectively filtering the environment and the interference to obtain an accurate judgment result;

D. and (3) outputting: and if the judgment result is effective action according to the control unit, outputting a decision signal to the automobile tail door and side sliding door controller, and otherwise, not outputting any signal to the automobile tail door and side sliding door controller.

6. The integrated induction device of claim 5, wherein: the wireless RF conversion unit is configured to send out a radio frequency signal, that is: and a decision signal sent by the sensing device is received, and a hard wire signal is output to the electric door controller through an OC circuit of the wireless RF conversion unit.

Technical Field

The invention relates to an integrated sensing device, in particular to a leg sweeping sensing device which is applied to automatic opening and closing of an automobile tail door and a side sliding door.

Background

When a user holds articles with both hands, it is inconvenient to open and close (hereinafter referred to as "open and close") a tailgate or a side-sliding door (hereinafter referred to as "power door").

The function skirting induction system is opened and close to current being applied to car electrically operated gate designs into: adopt two parallel arrangement's wire type induction electrode to be connected to the control unit, install in the rear bumper or sideslip door below, the control unit is through detecting the electric capacity change of the induction element that the user kicked the foot action and arouse, discerns the user and kicks the foot action and judges the intention that the user opened and close the electrically operated gate, sends opening signal and gives the electrically operated gate controller.

The scheme adopts two parallel lead type induction electrodes as induction units, so that the installation space is large, the requirement on the installation environment is high, the number of installation fixed points is large, the installation process is complex, and the installation time is long; the detection method detects single capacitance change on the two induction electrodes simultaneously, and judges that the kicking action is effective, so that the risk of false detection in the detection process is high.

Therefore, how to improve the manner of arranging two parallel wires in front and back of the sensing unit in the existing solution is a problem to be solved by those in the industry.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provides the leg-sweeping integrated sensing device applied to the automatic opening and closing of the automobile tail door and the side sliding door.

The invention is realized by the following steps: integral type induction system installs nearly car tail-gate or side sliding door department, its characterized in that, this induction system includes induction element and the control unit, and induction element is equipped with two response electrodes at least to set up with the mode left and right two sides of printed circuit board PCB wiring, the control unit integration is in each response electrode in the centre of this printed circuit board PCB, the wiring connection through printed circuit board PCB respectively.

In the above integrated sensing device, the sensing electrode of the sensing unit is rectangular, square, circular, triangular, rhombic, serpentine or irregular.

In the above integrated sensing device, the sensing device further comprises an RF converting unit.

In the integrated induction device, the PCB is a rigid board or a flexible board.

In the above integrated sensing device, the control unit is used for identifying a leg-sweeping action of a user and determining an intention of the user to open or close the power door, and includes:

A. induction: the method comprises the following steps that (1) induction electrodes respectively induce an area A and an area B, the middle is an area M, the area M has two conditions of cross induction, no induction or intentional shielding, 3 areas form 3 effective induction areas with different capacitance distribution, in the leg sweeping process, legs enter the induction areas, capacitance values of the induction electrodes in the corresponding induction areas become large, a capacitance change threshold value is set, the capacitance change amount exceeds the set threshold value, the induction electrode triggering state is recorded as 1, the capacitance change amount does not exceed the set threshold value, and the induction electrode triggering state is recorded as 0;

B. identification: the triggering state of the induction electrode corresponding to each induction area identifies the leg sweeping action of the user through the detected triggering state of the induction electrode, and the change of the triggering value of the induction electrode corresponding to the leg sweeping action is effectively changed;

C. judging, namely accurately judging the intention of the user according to calibration data by detecting the change and effectively filtering the environment and the interference to obtain an accurate judgment result;

D. and (3) outputting: and if the judgment result is effective action according to the control unit, outputting a decision signal to the automobile tail door and side sliding door controller, and otherwise, not outputting any signal to the automobile tail door and side sliding door controller.

In the above integrated sensing device, the wireless RF conversion unit is configured to send out a radio frequency signal, that is: and a decision signal sent by the sensing device is received, and a hard wire signal is output to the electric door controller through an OC circuit of the wireless RF conversion unit.

Due to the adoption of the technical scheme, the induction unit changes two parallel wires which are arranged in the front and back direction in the existing solution into at least 2 induction areas which are arranged in the left and right direction, so that the whole installation area is reduced; the installation method is simplified; the identification method of the invention judges the use intention of the user for opening and closing the electrically operated door by identifying the leg sweeping action of the user to the left and right induction areas, thereby evolving into double-point induction and identification from the existing single-point induction and identification, and further improving the detection sensitivity and reliability.

Drawings

FIG. 1 is a schematic view of the integrated sensor assembly of the present invention installed under the tailgate of an automobile;

FIG. 2 is a schematic structural diagram of the integrated sensor device of the present invention;

FIG. 3 is a schematic diagram of the burst of the integrated sensor of the present invention;

FIGS. 4-1 and 4-2 are a schematic diagram of the burst and structure of the wireless RF conversion unit of the integrated sensing device of the present invention;

fig. 5 is a schematic view of a leg sweep sensing area.

Detailed Description

In order to better understand the technical solution of the present invention, the following detailed description is made with reference to the accompanying drawings.

Referring to fig. 1, the integrated induction device 1 of the present invention is installed under a tailgate 2 of an automobile.

Referring to fig. 2 and 3, the sensing device 1 includes a sensing device connection harness 3, a sensing device housing 4, a Printed Circuit Board (PCB)5, a cover plate 6, a double-sided tape 7, a control unit circuit 8, a sensing electrode A9 of the sensing unit, a sensing electrode B10 of the sensing unit, a circuit board assembly limiting structure 11, a connection harness connector (female end) 12, and a sensing device connector (male end) 13.

Referring to fig. 4-1, 4-2, a wireless RF conversion unit 14, an upper cover 15 of the wireless RF conversion unit, a PCB16 of the wireless RF conversion unit, a case 17 of the wireless RF conversion unit, a connector (male end) 18 of the wireless RF conversion unit, a harness connector (female end) 19 connected to the wireless RF conversion unit, and a harness 20 connected to the wireless RF conversion unit.

Design of an integrated induction device: with the control unit circuit 8, the response electrode A9 of response unit, the response electrode B10 design of response unit is on same Printed Circuit Board (PCB) board, form circuit board (PCBA)5 with the components and parts paster through SMT, burn the software that compiles in control unit circuit 8, with apron 6 welding on circuit board (PCBA)5, spacing requirement through circuit board assembly limit structure 11 is installed to induction system casing 4, pass through the laser welding technology welding with induction system casing 4 and apron 6 again, paste double faced adhesive tape 7 in the below of induction system casing 4 again and constituted induction system 1. In application, the induction device 1 is adhered to the automobile tail door through the double-sided adhesive tape 7, and then the connecting wire harness connector (female end) 12 is inserted into the induction device connector (male end) 13 to form a complete automatic opening and closing system of the electric door; or adding the wireless RF conversion unit 14 as an optional component, burning the compiled software in a circuit board (PCBA)16 of the wireless RF conversion unit, assembling the circuit board (PCBA)16 of the wireless RF conversion unit, an upper cover 15 of the wireless RF conversion unit and a shell 17 of the wireless RF conversion unit together to form the wireless RF conversion unit 14, and then inserting a wiring harness connector (female end) 19 connected with the wireless RF conversion unit into a connector (male end) 18 of the wireless RF conversion unit to form the complete automatic opening and closing of the electric door.

In the above-described control unit, recognizing the leg-sweep action of the user and determining the intention of the user to open and close the tailgate and/or the side-sliding door are performed according to the following method.

A. Induction: referring to fig. 5, two sensing electrodes arranged in a left-and-right layout sense an area a and an area B respectively, the middle is an area M, the area M has two conditions of cross sensing, no sensing or intentional shielding, 3 areas constitute 3 effective sensing areas with different capacitance distributions, during leg sweeping, a leg enters the sensing area, the capacitance value of the sensing electrode in the corresponding sensing area becomes large, a capacitance variation threshold is set, the capacitance variation exceeds the set threshold, the triggering state of the sensing electrode is recorded as 1, the capacitance variation does not exceed the set threshold, and the triggering state of the sensing electrode is recorded as 0;

B. identification: the triggering state of the induction electrode corresponding to each induction area is as follows:

recognizing the leg sweeping action of a user through the detected triggering state of the sensing electrode, and effectively changing the A \ B triggering value of the sensing electrode corresponding to the leg sweeping action;

leg sweeping action sequence	Trigger value of induction electrode A \ B
		Region A->M region	10->11
M region->Region B	11->01
		Region B->M region	01->11
M region->Region A	11->10
		Region A->M region->Region B	10->11->01
Region B->M region->Region A	01->11->10
		M region->Region A->M region	11->10->11
M region->Region B->M region	11->01->11
		Region A->M region->Region B->M region	10->11->01->11
Region B->M region->Region A->M region	01->11->10->11
		M region->Region A->M region->Region B	11->10->11->01
M region->Region B->M region->Region A	11->01->11->10
		Region A->M region->Region B->M region->Region A	10->11->01->11->10
Region B->M region->Region A->M region->Region B	01->11->10->11->01

Note: 1. defining M area as cross induction area.

2. The leg-sweep action determined to be effective is not limited to the above description.

3. The multiple leg-sweep motions composed of the above motions are also considered to be effective leg-sweep motions.

C. Judging, namely accurately judging the intention of the user according to calibration data by detecting the change and effectively filtering the environment and the interference to obtain an accurate judgment result;

D. and (3) outputting: and if the judgment result is effective action according to the control unit, outputting a decision signal to the automobile tail door and side sliding door controller, and otherwise, not outputting any signal to the automobile tail door and side sliding door controller.

The output signal mode is as follows: the radio frequency output chip in the induction device sends out an audio signal, the wireless RF conversion unit receives a decision signal sent out by the induction device, and then a hard wire signal is output to the electric door controller through an OC circuit of the wireless RF conversion unit.

OC- > Open Collector (Open Collector)

RF- > Radio Frequency (Radio Frequency)

In summary, the leg-sweeping sensing device provided by the invention comprises the sensing unit and the control unit, and is installed at a position close to the tail door or the side-sliding door of the automobile.

It should be understood by those skilled in the art that the above embodiments are only for illustrating the present invention and are not to be used as a limitation of the present invention, and that changes and modifications to the above described embodiments are within the scope of the claims of the present invention as long as they are within the spirit and scope of the present invention.