Anti-accidental-touch gesture operation device and working method

Abstract

The present invention relates to an anti-accidental-touch gesture operation device, comprising a photosensitive element, a plurality of light-emitting elements distributed in an L-shape on the periphery of the photosensitive element, and a control circuit board electrically connected to the photosensitive element and each light-emitting element; the photosensitive element is arranged at the geometric center of the distribution shape of the plurality of light-emitting elements, and each light-emitting element is provided with a non-transparent ring body. The present invention also relates to a working method of the anti-accidental-touch gesture operation device. The anti-accidental-touch gesture operation device of the present invention has a small structure and volume, is convenient for users to operate, and has low cost. Utilizing its working method, it is possible to realize the interference of body in gesture operation and the interference of the external environment on gesture operation, and the recognition accuracy of gesture operation is high and the anti-interference ability is good.

Description

Technical Field

[0001] The present invention relates to an anti-mistouch gesture operation device and also relates to a working method of the anti-mistouch gesture operation device. Background Art

[0002] Gesture-based gesture control devices are widely used in the home appliance market due to their technological appeal, low cost, and mature technology. Currently, most contactless gesture control devices on the market use a photoelectric design. These devices consist of photosensitive components that detect ambient light and then interpret gestures. Due to the characteristics of contactless photoelectric gesture control devices, they are often implemented in kitchen appliances by increasing the circuit board size to reduce human interference. For example, in range hoods, the spacing between the two photosensitive detection components is often increased, thus limiting head interference. This structural improvement results in larger circuit boards or longer connecting cables, which can introduce interference and increase costs. Furthermore, the large hand-wave range of the user can cause difficulty in operation and a poor user experience. Furthermore, increasing the space available for the design cannot prevent interference and false triggering caused by water vapor accidentally triggering the photosensitive detection components. For example, if water vapor from two operating stoves reaches the detection area, it can trigger a gesture, causing the range hood to activate due to the accidental triggering. Summary of the Invention

[0003] The first technical problem to be solved by the present invention is to provide an anti-mistouch gesture operation device with a small size, easy operation, and the ability to prevent human interference triggering and other environmental factors from mistriggering in response to the above-mentioned prior art.

[0004] The second technical problem to be solved by the present invention is to provide a working method of an anti-mistouch gesture operation device with good operating experience and the ability to accurately identify user operations in response to the above-mentioned prior art.

[0005] The technical solution adopted by the present invention to solve the first problem mentioned above is: a gesture operation device for preventing accidental touches, characterized by comprising: a photosensitive element, a plurality of light-emitting elements distributed in an L-shape around the photosensitive element, and a control circuit board electrically connected to the photosensitive element and each light-emitting element;

[0006] The photosensitive element is arranged at the geometric center of the distribution shape of the plurality of light-emitting elements, and each light-emitting element is provided with a non-transparent ring body.

[0007] In order to ensure the uniformity of the light intensity of the light emitting element, the cross section of the ring body is rectangular, and the side length of the ring body in the horizontal direction is greater than the side length in the vertical direction.

[0008] Preferably, the distance between adjacent light emitting elements distributed in the horizontal direction is D, 80 mm ≤ D ≤ 120 mm.

[0009] Preferably, the total distance between the light emitting elements distributed in the vertical direction is H, and 10 mm ≤ H ≤ 30 mm.

[0010] In order to ensure the uniformity of light output from the light emitting element, the ring body is covered with a light emitting plate.

[0011] In order to enhance the light homogenizing effect, a light homogenizing prism is provided on the inner surface of the light homogenizing plate facing the light emitting element.

[0012] The structure is simple and the cost is low, and three light emitting elements are provided.

[0013] The technical solution adopted by the present invention to solve the second problem is: a working method of the aforementioned anti-mistouch gesture operation device, characterized in that it includes the following steps:

[0014] During operation, the control circuit board detects and obtains the light intensity data of the photosensitive element during the sampling period T, and compares the real-time collected light intensity data a with the basic light intensity threshold B;

[0015] If a ≥ B, start writing the light intensity data acquired through the detection into the first data buffer S0[n], where n is the total data storage capacity of the first data buffer; compare the written S0[i] with the effective light intensity threshold C, where i is a non-negative integer less than or equal to n;

[0016] If the n light sensitivity data written into the first data buffer area S0[n] are all less than C, it is determined that there is an interference signal, and the data stored in the first data buffer area S0[n] is cleared;

[0017] If S0[i] ≥ C occurs when the first data buffer S0[n] is not full, then stop writing data to the first data buffer S0[n] and clear the data stored in the first data buffer S0[n]. At the same time, start writing the light intensity data acquired by the detection to the second data buffer S1[z], where z is the total data storage capacity of the second data buffer, and z is greater than or equal to the maximum sampling data capacity of the operation gesture.

[0018] During the writing process of the real-time light intensity data S1[j] in the second data buffer area S1[z], j is a non-negative integer less than or equal to z; if S1[j]<S1[j-1]<S1[j-2]<S1[j-3], where 10≤j≤z, stop writing the data in the second data buffer area S1[z]; at the same time, assign Value=S1[j] and calculate the initial light intensity of the second data buffer area S1[z]

[0019] Calculate the convolution of the data in the second data buffer S1[z] with H=[1 1 1 1], and then store it in the third data buffer S11[m], where m is the total amount of data in the third data buffer S11[m], m=z+3, and the corresponding S11[x] is the data in the data group, and x is a non-negative integer less than or equal to m;

[0020] 1) When -0.1≤K1<0.3, it is determined that an object has entered the first detection zone between the light-emitting element and the light-receiving element at the end in the horizontal direction, and the first detection zone entry flag Rsb=1 is assigned;

[0021] When 4≤x<z and S11[x]≤4C, it is determined that an external interference object or a narrow rod-shaped interference object has entered the first detection area. At this time, Rsb is cleared to zero, Value is cleared to zero, and the second data buffer S1[z] is cleared to zero, and then the light intensity data of the photosensitive element is resampled;

[0022] When z / 2≤x<z, When Value ≥ C, it is determined that the user's body or a large interference object has moved out of the first detection area. At this time, Rsb is cleared, Value is cleared, and the second data buffer S1[z] is cleared, and then the light intensity data of the photosensitive element is resampled;

[0023] When z / 2≤x<z, If Value is less than C, it is determined that the hand has moved out of the first detection area. At this time, the flag RsbP indicating the hand has moved out of the first detection area is set to 1. At this time, Value is cleared to zero, Rsb is cleared to zero, and the second data buffer S1[z] is cleared to zero. Then, the light intensity data of the photosensitive element is sampled again.

[0024] When x ≥ z, If it is determined that an entity with too large a width has moved from the first detection area to the second detection area between the photosensitive element and the vertically distributed light-emitting elements, then the Value is cleared to zero, Rsb is cleared to zero, and the second data buffer S1[z] is cleared to zero, and then the light intensity data of the photosensitive element is sampled again;

[0025] 2) When K1 ≥ 0.3, it is determined that an object has entered the second detection zone between the photosensitive element and the vertically distributed light-emitting elements, and the second detection zone entry flag Lsb = 1 is assigned;

[0026] When 4≤x<z and When , it is determined that a small external environmental interference object or a narrow rod-shaped interference object has entered the second detection area. At this time, Lsb is cleared to zero, Value is cleared to zero, and the second data buffer area S1[z] is cleared to zero, and then the light intensity data of the photosensitive element is sampled again;

[0027] When z / 2≤x<z, If Value ≥ C, it is determined that an entity with too large a width has moved out of the second detection area. At this time, Lsb is cleared, Value is cleared, and the second data buffer S1[z] is cleared, and then the light intensity data of the photosensitive element is sampled again;

[0028] When z / 2≤x<z, If Value < C, it is determined that the hand has moved out of the second detection area. At this time, the flag LsbP = 1 is assigned to indicate that the hand has moved out of the second detection area. At the same time, Value is cleared to zero, Lsb is cleared to zero, and the second data buffer S1[z] is cleared to zero. Then, the light intensity data of the photosensitive element is sampled again.

[0029] When x ≥ z, If it is determined that an entity with too large width enters the second detection area from the first detection area, Lsb is cleared, Value is cleared, and the second data buffer S1[z] is cleared, and the light intensity data of the photosensitive element is resampled;

[0030] When RsbP=1, determine whether LsbP=1 is obtained within the time difference threshold T0; if so, determine that the current operation gesture is moving from the first area to the second area, and then perform the corresponding control operation according to the operation gesture information, and at the same time clear RsbP and LsbP; if not, clear RsbP and resample the light intensity data of the photosensitive element;

[0031] When LsbP=1, determine whether RsbP=1 is obtained within the time difference threshold T0; if so, determine that the current operation gesture is moving from the second area to the first area, and then perform corresponding control operations according to the operation gesture information, and at the same time clear RsbP and LsbP; if not, clear LsbP, and then re-sample the light intensity data of the photosensitive element.

[0032] Preferably, for a photosensitive element with a full range of photosensitive intensity A, a basic photosensitive intensity threshold is set. Effective photosensitivity threshold

[0033] Compared with the prior art, the advantages of the present invention are: the anti-accidental-touch gesture operation device of the present invention, through its working method, can realize the interference of the body and the external environment in gesture operation, and has high recognition accuracy and good anti-interference ability for gesture operation. In addition, the anti-accidental-touch gesture operation device can effectively prevent the interference of external factors such as smoke in the environment on gesture operation through the coordinated working mode of the photosensitive element and the light-emitting element. The L-shaped arrangement of the light-emitting element can effectively realize the interference of the user's body during gesture operation, and has strong anti-interference ability. In addition, the device has a small structure, is easy for users to operate, and is low in cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 Schematic diagram of the structure of the anti-mistouch gesture operation device in an embodiment of the present invention. DETAILED DESCRIPTION

[0035] The present invention will be described in further detail below with reference to the accompanying drawings and embodiments.

[0036] like Figure 1 As shown, the anti-mistouch gesture operation device in this embodiment includes a photosensitive element 1, a plurality of light-emitting elements 2 distributed in an L shape on the periphery of the photosensitive element 1, and a control circuit board electrically connected to the photosensitive element 1 and each light-emitting element 2; the light-emitting element 2 is turned on or off under the control of the control circuit board, and each photosensitive element 1 can transmit the detected light-sensitive data to the control circuit board, and the control circuit board performs calculations and analysis based on the light-sensitive data.

[0037] In this embodiment, the photosensitive element 1 is positioned at the geometric center of the distribution of the multiple light-emitting elements 2. Each light-emitting element 2 is protected by a non-transparent ring 3. The upper end of the ring 3 extends to or slightly above the top of the photosensitive element 1. When no object passes through the distribution area of the light-emitting elements 2, the light emitted by the light-emitting elements 2 cannot be sensed by the photosensitive element 1 due to the action of the ring 3, and thus no light-sensing signal is generated. However, when an object passes through the distribution area of the light-emitting elements 2, the light signal generated by the light-emitting elements 2 is reflected by the object to the position of the photosensitive element 1, and then sensed by the photosensitive element 1. The light-sensing signal generated by the photosensitive element 1 is transmitted to the control circuit board for calculation and analysis.

[0038] In order to ensure that the luminous intensity of each light-emitting element 2 is uniform, so that when analyzing the light-sensitive intensity data of the photosensitive element 1, there is no need to consider the difference in the luminous intensity of each light-emitting element 2, making the calculation simpler, the cross-section of the ring body 3 in this embodiment is rectangular, and the side length of the ring body 3 in the horizontal direction is greater than the side length in the vertical direction. The distance between the long sides of the light-emitting hole formed by the ring body 3 is no more than twice the distance between the short sides. On this basis, a light-dispersing plate is provided on the ring body 3. Specifically, a light-dispersing prism can be provided on the inner surface of the light-dispersing plate facing the light-emitting element 2.

[0039] In addition, in this embodiment, the distance between adjacent light-emitting elements 2 distributed in the horizontal direction is D, the total distance between the light-emitting elements 2 distributed in the vertical direction is H, and in the most vertical direction, the distance between the light-emitting element 2 located at the top and the light-emitting element 2 located at the bottom is H. The distance D is set to be greater than the width of an average person's palm but less than the width of the body part opposite to the anti-false touch gesture operation device. The distance H is set to be less than the length of an average person's palm. For example, when the anti-false touch gesture operation device is applied to a range hood, the body part opposite to the anti-false touch gesture operation device is the head, so the distance D is set to be greater than the width of an average person's palm but less than the width of the head. In this embodiment, 80mm≤D≤120mm, and 10mm≤H≤30mm. The anti-false touch gesture operation device can effectively prevent interference from the user's body during gesture operation and has strong anti-interference capabilities. On this basis, the distance setting of the device structure D and H makes the device small in size, easy for users to operate, and low in cost.

[0040] The anti-accidental-touch gesture operation device can be applied to various electrical appliances that require gesture operation, and is particularly suitable for kitchen appliances such as range hoods that only require simple gesture operation.

[0041] Simply put, in this embodiment, three light-emitting elements 2 are provided: one light-emitting element 2 is positioned at the corner of the L-shape, another light-emitting element 2 is positioned above it, and a third light-emitting element 2 is positioned to the right of it. For ease of explanation, the light-emitting element 2 located at the upper left side is designated as F1, the light-emitting element 2 located at the lower left side is designated as F2, and the light-emitting element 2 located on the right side is designated as F3. For the gesture operation device for preventing accidental touches in this embodiment, if a user performs a gesture operation from left to right, the light-sensing intensity signal of light-sensing element 1 will show two peaks, with the light-sensing intensity at the location of the first peak being greater than the light-sensing intensity at the location of the second peak. The first peak occurs near light-sensing elements F1 and F2, while the second peak occurs near light-sensing element F3. If a user performs a gesture operation from right to left, the light-sensing intensity signal of light-sensing element 1 will show two peaks, with the light-sensing intensity at the location of the first peak being less than the light-sensing intensity at the location of the second peak. The first peak occurs near light-sensing elements F3, while the second peak occurs near light-sensing elements F1 and F2. Based on this situation, the user's gesture operation and the interference during the operation can be judged according to the light intensity signal of the photosensitive element 1.

[0042] The working method of the aforementioned anti-mistouch gesture operation device is specifically as follows.

[0043] During operation, the control circuit board detects and obtains the light intensity data of the photosensitive element 1 during the sampling period T, and compares the light intensity data a collected in real time with the basic light intensity threshold B.

[0044] If a ≥ B, the detected light intensity data is written to the first data buffer S0[n], where n is the total data storage capacity of the first data buffer. The written S0[i] is compared with the effective light intensity threshold C, where i is a non-negative integer less than or equal to n. In this embodiment, 10 ≤ n ≤ 100, and n is determined based on the distribution area of the anti-mistouch gesture operation device and the unit sampling time of the data. The light intensity data sampling period of photosensitive element 1 is typically greater than 2ms.

[0045] In this embodiment, for the photosensitive element 1 with a full range of photosensitive intensity A, a basic photosensitive intensity threshold is set. Effective photosensitivity threshold The full scale A of the light-sensitive intensity of the photosensitive element 1 is specifically determined according to the distribution position and data of the light-emitting elements 2 .

[0046] If the n light-sensitivity data written into the first data buffer area S0[n] are all smaller than C, that is, the light-sensitivity data of the detected photosensitive element 1 is continuously small, it is determined that there is an interference signal. At this time, the data recorded in the first data buffer area S0[n] is the interference signal data, and the data stored in the first data buffer area S0[n] is cleared.

[0047] S0[n] is mainly used to monitor the possible light intensity data before the valid light intensity data appears on the photosensitive element 1. If S0[i] ≥ C appears when the first data buffer S0[n] is not fully written, that is, after the valid light intensity signal obtained by the normal reflection of the object appears, then the writing of data to the first data buffer S0[n] is stopped and the data stored in the first data buffer S0[n] is cleared; at the same time, the light intensity data obtained by the detection is written to the second data buffer S1[z], where z is the total data storage capacity of the second data buffer, and z is greater than or equal to the maximum sampling data capacity of the operation gesture.

[0048] During the writing process of the real-time light intensity data S1[j] in the second data buffer area S1[z], j is a non-negative integer less than or equal to z; if S1[j]<S1[j-1]<S1[j-2]<S1[j-3], that is, when the light intensity data gradually decreases continuously, where 10≤j≤z, stop writing data in the second data buffer area S1[z]; at the same time, assign Value=S1[j], and calculate the initial light intensity data change slope of the second data buffer area S1[z]

[0049] Calculate the convolution of the data in the second data cache S1[z] and H=[1 1 1 1], and then store them in the third data cache S11[m], where m is the total amount of data in the third data cache S11[m], m=z+3, and the corresponding S11[x] is the data in the data group, and x is a non-negative integer less than or equal to m.

[0050] 1) When -0.1 ≤ K1 < 0.3, it indicates that the collected valid light intensity data has a small initial change trend. Therefore, it is determined that an object has entered the first detection zone between the light-emitting element 2 at the end of the horizontal direction and the light-receiving element. The first detection zone entry flag Rsb = 1 is assigned. In this embodiment, the light-emitting element 2 at the end of the horizontal direction is located on the right side, so the first detection zone is the right detection zone.

[0051] When 4≤x<z and S11[x]≤4C, it is determined that an external environmental interference object or a narrow rod-shaped interference object has entered the first detection zone. At this time, Rsb is cleared, Value is cleared, and the second data buffer S1[z] is cleared, and the light intensity data of photosensitive element 1 is resampled. For a range hood, the external environmental interference object may be oil smoke, water vapor, etc.

[0052] When z / 2≤x<z, If Value ≥ C, it is determined that the user's body or a large interference object has moved out of the first detection area. At this time, Rsb is cleared, Value is cleared, and the second data buffer S1[z] is cleared, and the light intensity data of the photosensitive element 1 is resampled. The user's body part is the part of the body facing the anti-inadvertent touch gesture operation device. For a range hood, this part of the user's body is the head.

[0053] When z / 2≤x<z, And when Value is less than C, it is determined that the hand has moved out of the first detection area. At this time, the mark RsbP=1 is assigned to move out of the first detection area. At this time, Value is cleared, Rsb is cleared, and the second data buffer area S1[z] is cleared, and then the light intensity data of the photosensitive element 1 is resampled.

[0054] When x ≥ z, If an excessively wide interfering entity, such as a user's head, is detected, it is determined to have moved from the first detection zone to the second detection zone between the photosensitive element and the vertically arranged light-emitting element 2. In this embodiment, the second detection zone is the left detection zone. At this point, the Value and Rsb buffers are cleared, and the second data buffer S1[z] is cleared. Then, the light intensity data of photosensitive element 1 is resampled.

[0055] 2) When K1≥0.3, it indicates that the change trend of the photosensitivity data is small, and it is judged that an object has entered the second detection area between the photosensitive element and the vertically distributed light-emitting element 2. In this embodiment, it is judged that an object has entered the left detection area, and the value of entering the second detection area mark Lsb=1 is assigned.

[0056] When 4≤x<z and When a small external environmental interference object or a narrow rod-shaped interference object enters the second detection area, Lsb is cleared, Value is cleared, and the second data buffer S1[z] is cleared, and the light intensity data of photosensitive element 1 is resampled. For range hoods, small external environmental interference objects include low-concentration oil smoke or steam.

[0057] When z / 2≤x<z, If Value≥C, it is determined that an interfering entity with a width too large, such as a head, has moved out of the second detection area. At this time, Lsb is cleared, Value is cleared, and the second data buffer S1[z] is cleared, and then the light intensity data of the photosensitive element 1 is sampled again.

[0058] When z / 2≤x<z, If Value is less than C, it is determined that a hand has moved out of the second detection area. At this time, the flag LsbP=1 is assigned to move out of the second detection area. At the same time, Value is cleared, Lsb is cleared, and the second data buffer area S1[z] is cleared, and then the light intensity data of the photosensitive element 1 is resampled.

[0059] When x ≥ z, It is determined that an interference entity with a width too large, such as a user's head, enters the second detection area from the first detection area. At this time, Lsb is cleared, Value is cleared, and the second data buffer area S1[z] is cleared, and then the light intensity data of the photosensitive element 1 is resampled.

[0060] When RsbP = 1, determine whether LsbP = 1 within the time difference threshold T0. If so, determine that the current operation gesture is moving from the first area to the second area, then perform the corresponding control operation based on the operation gesture information, and simultaneously clear RsbP and LsbP. If not, then clear RsbP and resample the light intensity data of photosensitive element 1. T0 is the maximum time required for the user to normally swipe between the left and right areas when performing a gesture operation.

[0061] When LsbP=1, determine whether RsbP=1 is obtained within the time difference threshold T0; if so, determine that the current operation gesture is moving from the second area to the first area, and then perform corresponding control operations according to the operation gesture information, and at the same time clear RsbP and LsbP; if not, clear LsbP, and then re-sample the light intensity data of the photosensitive element 1.

[0062] The anti-mistouch gesture operation device in the present invention utilizes its working method to realize the interference of body in gesture operation and the interference of external environment on gesture operation, and has high recognition accuracy of gesture operation and good anti-interference ability.

Claims

1. A method for operating a gesture operation device to prevent accidental touches, characterized in that: The anti-mistouch gesture operation device comprises a photosensitive element (1), a plurality of light-emitting elements (2) distributed in an L-shape on the periphery of the photosensitive element (1), and a control circuit board electrically connected to the photosensitive element (1) and each light-emitting element (2); The photosensitive element (1) is arranged at the geometric center of the distribution shape of the plurality of light-emitting elements (2), and each light-emitting element (2) is provided with a non-light-transmissive ring body (3) on its outer shell; The working method of the anti-mistouch gesture operation device includes the following steps: During operation, the control circuit board detects and acquires the light intensity data of the photosensitive element (1) during the sampling period T, and compares the light intensity data a acquired in real time with the basic light intensity threshold value B; If a ≥ B, start writing the light intensity data acquired through the detection into the first data buffer S0[n], where n is the total data storage capacity of the first data buffer; compare the written S0[i] with the effective light intensity threshold C, where i is a non-negative integer less than or equal to n; If the n light sensitivity data written into the first data buffer area S0[n] are all less than C, it is determined that there is an interference signal, and the data stored in the first data buffer area S0[n] is cleared; If S0[i] ≥ C occurs when the first data buffer S0[n] is not full, then stop writing data to the first data buffer S0[n] and clear the data stored in the first data buffer S0[n]. At the same time, start writing the light intensity data acquired by the detection to the second data buffer S1[z], where z is the total data storage capacity of the second data buffer, and z is greater than or equal to the maximum sampling data capacity of the operation gesture. During the writing process of the real-time light intensity data S1[j] in the second data buffer S1[z], j is a non-negative integer less than or equal to z; if S1[j]<S1[j-1]<S1[j-2]<S1[j-3], where 10≤j≤z, the writing of data in the second data buffer S1[z] is stopped; at the same time, Value=S1[j] is assigned, and the initial light intensity data change slope K1=\frac {S1\left [ {4} \right ]-S1\left [ {0} \right ]} {4} of the second data buffer S1[z] is calculated. ; Calculate the convolution of the data in the second data buffer S1[z] with H=[1 1 1 1], and then store it in the third data buffer S11[m], where m is the total amount of data in the third data buffer S11[m], m=z+3, and the corresponding S11[x] is the data in the data group, and x is a non-negative integer less than or equal to m; 1) When -0.1≤K1<0.3, it is judged that an object has entered the first detection zone between the light emitting element (2) and the light sensing element at the end in the horizontal direction, and a flag Rsb=1 is assigned indicating that the object has entered the first detection zone; When 4≤x<z and S11[x]≤4C, it is determined that an external environmental interference object or a narrow rod-shaped interference object has entered the first detection area. At this time, Rsb is cleared to zero, Value is cleared to zero, and the second data buffer area S1[z] is cleared to zero, and then the light intensity data of the photosensitive element (1) is sampled again; When z / 2≤x<z, 4C<S11[x]<4 C and Value ≥ C, it is determined that the user's body or a large interference object has moved out of the first detection area. At this time, Rsb is cleared, Value is cleared, and the second data buffer area S1[z] is cleared, and then the light intensity data of the photosensitive element (1) is sampled again; When z / 2≤x<z, 4C<S11[x]<4 When C and Value<C, it is determined that the hand has moved out of the first detection area, and the flag RsbP=1 is assigned to move out of the first detection area. At this time, Value is cleared to zero, Rsb is cleared to zero, and the second data buffer S1[z] is cleared to zero, and then the light intensity data of the photosensitive element (1) is sampled again; When x ≥ z, S11[x] ≥ 4 C, it is determined that an entity with too large a width moves from the first detection area to the second detection area between the photosensitive element and the vertically distributed light-emitting element (2), at this time, the Value is cleared to zero, Rsb is cleared to zero, and the second data buffer area S1[z] is cleared to zero, and then the light intensity data of the photosensitive element (1) is sampled again; 2) When K1≥0.3, it is determined that an object has entered the second detection zone between the photosensitive element and the vertically distributed light-emitting element (2), and a flag Lsb=1 is assigned indicating that the object has entered the second detection zone; When 4≤x<z and S11[x]< When C, it is determined that a small external environmental interference object or a narrow rod-shaped interference object has entered the second detection area, and Lsb is cleared, Value is cleared, and the second data buffer area S1[z] is cleared, and then the light intensity data of the photosensitive element (1) is sampled again; When z / 2≤x<z, S11[x]≥ C and Value ≥ C, it is determined that an entity with too large a width has moved out of the second detection area, and Lsb is cleared, Value is cleared, and the second data buffer area S1[z] is cleared, and then the light intensity data of the photosensitive element (1) is sampled again; When z / 2≤x<z, S11[x]≥ C and Value < C, it is determined that the hand has moved out of the second detection area, and at this time, the second detection area moving out flag LsbP is assigned to be 1, and at the same time, Value is cleared to zero, Lsb is cleared to zero, and the second data buffer area S1[z] is cleared to zero, and then the light intensity data of the photosensitive element (1) is sampled again; When x ≥ z, S11[x] ≥ C, it is determined that an entity with too large a width enters the second detection area from the first detection area, at this time Lsb is cleared to zero, Value is cleared to zero, the second data buffer area S1[z] is cleared to zero, and then the light intensity data of the photosensitive element (1) is sampled again; When RsbP=1, it is determined whether LsbP=1 is obtained within the time difference threshold T0; if so, it is determined that the current operation gesture is moving from the first area to the second area, and then a corresponding control operation is performed according to the operation gesture information, and RsbP and LsbP are cleared at the same time; if not, RsbP is cleared, and then the light intensity data of the photosensitive element (1) is sampled again; When LsbP=1, it is determined whether RsbP=1 is obtained within the time difference threshold T0; if so, it is determined that the current operation gesture is moving from the second area to the first area, and then a corresponding control operation is performed according to the operation gesture information, and RsbP and LsbP are cleared at the same time; if not, LsbP is cleared, and then the light intensity data of the photosensitive element (1) is sampled again.

2. The operating method of the gesture operation device for preventing accidental touches according to claim 1, characterized in that: The cross section of the ring body (3) is rectangular, and the side length of the ring body (3) in the horizontal direction is greater than the side length in the vertical direction.

3. The operating method of the gesture operation device for preventing accidental touches according to claim 1, characterized in that: The distance between adjacent light emitting elements (2) distributed in the horizontal direction is D, 80 mm ≤ D ≤ 120 mm.

4. The operating method of the gesture operation device for preventing accidental touches according to claim 1, characterized in that: The total distance between the light emitting elements (2) distributed in the vertical direction is H, 10mm≤H≤30mm.

5. The operating method of the gesture operation device for preventing accidental touches according to claim 1, characterized in that: The ring body (3) is covered with a light-distributing plate.

6. The operating method of the gesture operation device for preventing accidental touches according to claim 5, characterized in that: A light-homogenizing prism is provided on the inner surface of the light-homogenizing plate facing the light-emitting element (2).

7. The operating method of the gesture operation device for preventing accidental touches according to claim 1, characterized in that: Three light-emitting elements (2) are provided.

8. The operating method of the anti-mistouch gesture operation device according to any one of claims 1 to 7, characterized in that: For the photosensitive element (1) with a full-scale light intensity detection range of A, set the basic light intensity threshold , effective photosensitivity threshold .

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