Range hood smoke interference-proof gesture recognition method, system, range hood, and medium

Abstract

The present invention provides a method, system, range hood, and medium for smoke-interference-resistant gesture recognition for a range hood. The range hood includes an infrared temperature sensor and an infrared transceiver sensor. The smoke-interference-resistant gesture recognition method includes: obtaining temperature data collected by the infrared temperature sensor and obtaining a received signal from the infrared transceiver sensor; when the received signal indicates infrared light reflected back from the infrared transceiver sensor, determining whether the received signal is a gesture signal based on temperature data from the current statistical period and the previous statistical period. The present invention determines that the received signal is a gesture signal when the temperature data from the two most recent statistical periods meets preset change conditions. This avoids smoke interference and the resulting misoperation of the range hood, thereby improving gesture recognition accuracy and efficiency. Furthermore, there are no requirements for the installation distance between the infrared temperature sensor and the infrared transceiver sensor, reducing installation space requirements and allowing for greater flexibility in the component layout of the range hood.

Description

Technical Field

[0001] The present invention relates to the technical field of household appliances, and in particular to a method and system for preventing smoke interference gesture recognition of a range hood, a range hood, and a medium. Background Art

[0002] Existing range hood gesture control is widely used, currently primarily implemented using two infrared transceiver modules spaced a certain distance apart. When an infrared transceiver module is blocked, the infrared light is reflected by the hand back to the receiving tube, causing the output signal level to flip. This flipped signal level in the two infrared transceiver modules is then used to detect hand gestures. However, range hoods are often used in complex scenarios, and this technical solution is susceptible to interference from smoke. When smoke drifts at a certain speed past the two gesture-detecting infrared transceiver module windows, the signals from the two windows do not overlap, leading to the smoke interference signal being mistakenly interpreted as a hand gesture, causing the range hood to malfunction. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to overcome the defect in the prior art that the smoke interference signal is easily interfered by smoke and mistakenly judged as a waving signal, resulting in malfunction of the range hood. A method, system, range hood and medium for anti-smoke interference gesture recognition of the range hood are provided.

[0004] The present invention solves the above technical problems through the following technical solutions:

[0005] In a first aspect, the present invention provides a method for identifying gestures for a range hood to prevent smoke interference. The range hood includes an infrared temperature sensor and an infrared transceiver sensor. The method includes:

[0006] Acquiring temperature data collected by the infrared temperature sensor and acquiring a receiving signal from the infrared transceiver sensor;

[0007] When the received signal indicates that the infrared transceiver sensor receives reflected infrared light, it is determined whether the received signal is a gesture signal according to temperature data in a current statistical period and a previous statistical period.

[0008] Optionally, there is a plurality of temperature data in each statistical period, and judging whether the received signal is a gesture signal according to the temperature data in the current statistical period and the previous statistical period includes:

[0009] Calculate the current average value and the current variance value of the temperature data in the current statistical period, and calculate the previous average value of the temperature data in the previous statistical period;

[0010] If the difference between the current average value and the previous average value is greater than a preset difference threshold and the current variance value is greater than a preset variance threshold, then the received signal is a gesture signal.

[0011] Optionally, the determining whether the received signal is a gesture signal based on temperature data in a current statistical period and a previous statistical period further includes:

[0012] If the difference is less than or equal to the difference threshold and / or the current variance is less than or equal to the variance threshold, the received signal is a smoke interference signal.

[0013] Optionally, the infrared temperature sensor and the infrared transceiver sensor are integrated into one module.

[0014] In a second aspect, the present invention further provides a smoke interference prevention gesture recognition system for a range hood, wherein the range hood includes an infrared temperature sensor and an infrared transceiver sensor, and the smoke interference prevention gesture recognition system includes: an acquisition module and a recognition module;

[0015] The acquisition module is used to acquire the temperature data collected by the infrared temperature sensor and the reception signal of the infrared transceiver sensor;

[0016] The identification module is configured to determine whether the received signal is a gesture signal based on temperature data in a current statistical period and a previous statistical period when the received signal indicates that the infrared transceiver sensor receives reflected infrared light.

[0017] Optionally, the identification module is specifically configured to calculate a current average value and a current variance value of the temperature data in the current statistical period, and calculate a previous average value of the temperature data in the previous statistical period;

[0018] The recognition module is further specifically configured to determine that the received signal is a gesture signal if a difference between the current average value and the previous average value is greater than a preset difference threshold and the current variance value is greater than a preset variance threshold.

[0019] Optionally, the identification module is further specifically configured to determine that the received signal is a smoke interference signal if the difference is less than or equal to the difference threshold and / or the current variance is less than or equal to the variance threshold.

[0020] In a third aspect, the present invention further provides a range hood comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the aforementioned range hood anti-smoke interference gesture recognition method when executing the computer program.

[0021] Optionally, the range hood further includes an infrared temperature sensor and an infrared transceiver sensor, and the infrared temperature sensor and the infrared transceiver sensor are integrated into one module.

[0022] The fourth invention is to provide a computer storage medium having a computer program stored thereon, wherein the computer program, when executed by a processor, implements the aforementioned range hood anti-smoke interference gesture recognition method.

[0023] The positive progress effect of the present invention is that: it is judged whether the received signal is a gesture signal through the temperature data in the latest two statistical periods, and the received signal is judged to be a gesture signal when the temperature data meets the preset change conditions. Specifically, if the average value and variance value of the temperature data meet the change conditions, the received signal is a gesture signal, avoiding the interference of smoke and the resulting malfunction of the range hood, and improving the accuracy and efficiency of gesture recognition; at the same time, there is no requirement for the installation distance between the infrared temperature sensor and the infrared transceiver sensor, and there is no need to process the time difference of the measurement signals of the two sensors. The two sensors can be integrated in one module, which reduces the requirements for the installation space and makes the component layout of the range hood more flexible. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a flow chart of a smoke interference prevention gesture recognition method for a range hood according to embodiment 1 of the present invention.

[0025] Figure 2 This is a flowchart of a specific implementation of step S12 of the smoke interference prevention gesture recognition method for a range hood according to embodiment 1 of the present invention.

[0026] Figure 3 This is a flow chart of an example of a smoke interference prevention gesture recognition method for a range hood according to embodiment 1 of the present invention.

[0027] Figure 4 This is a module diagram of a smoke interference prevention gesture recognition system for a range hood according to embodiment 2 of the present invention.

[0028] Figure 5 This is a schematic structural diagram of a range hood according to embodiment 3 of the present invention.

[0029] Figure 6 This is a structural schematic diagram of a specific implementation of the range hood of Example 3 of the present invention. DETAILED DESCRIPTION

[0030] The present invention is further described below by way of examples, but the present invention is not limited to the scope of the examples.

[0031] Example 1

[0032] This embodiment provides a smoke-interference-proof gesture recognition method for a range hood, wherein the range hood includes an infrared temperature sensor and an infrared transceiver sensor, and the detection ranges of the infrared temperature sensor and the infrared transceiver module overlap. Figure 1 ,The method to prevent smoke from interfering with gesture recognition includes:

[0033] S11. Acquire temperature data collected by the infrared temperature sensor and acquire a receiving signal from the infrared transceiver sensor.

[0034] S12. When the received signal indicates that the infrared transceiver sensor receives reflected infrared light, determine whether the received signal is a gesture signal based on temperature data in the current statistical period and the previous statistical period.

[0035] When the infrared transceiver sensor receives the reflected infrared light, the level of the received signal is flipped. Specifically, when the infrared light emitted by the infrared transceiver sensor is blocked, it is reflected back and received by the infrared receiving tube of the infrared transceiver sensor, and the output signal of the infrared receiving tube is flipped.

[0036] The temperature measurement characteristics of the infrared temperature sensor are used in conjunction with an algorithm to judge gestures (waving). Combined with the received signal judgment of the infrared transceiver sensor, it is possible to both judge gesture (waving) signals and filter out smoke (oil smoke, water vapor, etc.) interference signals.

[0037] In this embodiment, whether the received signal is a gesture signal is determined by using the temperature data in the most recent two statistical periods. When the temperature data meets the preset change conditions, the received signal is determined to be a gesture signal, thereby avoiding the interference of smoke and the resulting malfunction of the range hood, and improving the accuracy and efficiency of gesture recognition. At the same time, there are no requirements for the installation distance between the infrared temperature sensor and the infrared transceiver sensor, and there is no need to process the time difference between the measurement signals of the two sensors, which reduces the requirements for installation space and makes the component layout of the range hood more flexible.

[0038] In specific implementation, there are several temperature data in each statistical period. Figure 2 In step S12, “determining whether the received signal is a gesture signal based on the temperature data in the current statistical period and the previous statistical period” includes:

[0039] S121. Calculate the current average value and the current variance value of the temperature data in the current statistical period, and calculate the previous average value of the temperature data in the previous statistical period.

[0040] S122: If the difference between the current average value and the previous average value is greater than a preset difference threshold and the current variance value is greater than a preset variance threshold, the received signal is a gesture signal.

[0041] Among them, the infrared temperature sensor collects a certain amount of temperature data in each statistical period.

[0042] The difference value being greater than the difference threshold and the current variance value being greater than the variance threshold are change conditions for determining that the received signal is a gesture signal.

[0043] The difference threshold and variance threshold can be set according to actual needs.

[0044] In this embodiment, whether the received signal is a gesture signal is determined by using the temperature data in the most recent two statistical periods. When the temperature data meets the preset change conditions, the received signal is determined to be a gesture signal. Specifically, if the average value and variance value of the temperature data meet the change conditions, the received signal is a gesture signal. This avoids the interference of smoke and the resulting malfunction of the range hood, and improves the accuracy and efficiency of gesture recognition. At the same time, there are no requirements for the installation distance between the infrared temperature sensor and the infrared transceiver sensor, and there is no need to process the time difference between the measurement signals of the two sensors, which reduces the requirements for installation space and makes the component layout of the range hood more flexible.

[0045] When implementing it, refer to Figure 2 In step S12, “determining whether the received signal is a gesture signal based on the temperature data in the current statistical period and the previous statistical period” further includes:

[0046] S123: If the difference is less than or equal to the difference threshold and / or the current variance is less than or equal to the variance threshold, the received signal is a smoke interference signal.

[0047] As long as one of the difference value and the current variance value does not meet the change condition, it can be determined that the received signal is a smoke interference signal.

[0048] In this embodiment, whether a received signal is a gesture signal is determined by using temperature data from the most recent two statistical periods. When the temperature data meets a preset change condition, the received signal is determined to be a gesture signal. Specifically, if the average value and variance value of the temperature data meet the change condition, the received signal is a gesture signal; if either the average value or the variance value does not meet the change condition, the received signal is a smoke interference signal. This avoids smoke interference and the resulting malfunction of the range hood, thereby improving the accuracy and efficiency of gesture recognition. At the same time, there are no requirements for the installation distance between the infrared temperature sensor and the infrared transceiver sensor, and there is no need to process the time difference between the measurement signals of the two sensors, which reduces the requirements for installation space and makes the component layout of the range hood more flexible.

[0049] In specific implementation, the infrared temperature sensor and the infrared transceiver sensor are integrated into one module.

[0050] Among them, in order to further improve reliability and avoid false operation, an infrared temperature sensor and an infrared transceiver sensor are integrated into one module for judgment. Since the working mechanisms and detection methods of these two sensors are different, the time difference of the detection signals of the two sensors does not need to be specifically processed. In other words, there are no requirements for the installation distance between the infrared temperature sensor and the infrared transceiver sensor. There is no need to process the time difference of the measurement signals of the two sensors. The two sensors can be integrated into one module, which reduces the requirements for installation space and further reduces the distance of the window for waving through.

[0051] In this embodiment, whether the received signal is a gesture signal is determined by using the temperature data in the most recent two statistical periods. When the temperature data meets the preset change conditions, the received signal is determined to be a gesture signal. Specifically, if the average value and variance value of the temperature data meet the change conditions, the received signal is a gesture signal. This avoids the interference of smoke and the resulting malfunction of the range hood, and improves the accuracy and efficiency of gesture recognition. At the same time, there are no requirements for the installation distance between the infrared temperature sensor and the infrared transceiver sensor, and there is no need to process the time difference between the measurement signals of the two sensors. The two sensors can be integrated into one module, which reduces the requirements for installation space and makes the component layout of the range hood more flexible.

[0052] The following is an example of implementing a method for preventing smoke interference with gesture recognition for a range hood.

[0053] Reference Figure 3 Each statistical cycle lasts for t, and the infrared temperature sensor collects n temperature data points, T(n), during each statistical cycle (time t). When the infrared receiving tube of the infrared transceiver sensor receives the reflected infrared light, the output signal of the infrared receiving tube flips to a low level.

[0054] When the infrared receiving tube output signal turns to low level, calculate the difference ΔTavg between the average value of the n sample temperature data and the average value of the n sample temperature in the previous stage, and calculate the variance value s of the n sample temperature data at the same time. 2 The difference threshold is ΔT0, and the variance threshold is s 2 (0). When ΔTavg>ΔT0 and s 2 >s 2 (0), the received signal is identified as a gesture (waving) signal; otherwise, the received signal is identified as a smoke interference signal.

[0055] Example 2

[0056] This embodiment provides a smoke-interference-proof gesture recognition system for a range hood, wherein the range hood includes an infrared temperature sensor and an infrared transceiver sensor, and the detection ranges of the infrared temperature sensor and the infrared transceiver module overlap. Figure 4The anti-smoke interference gesture recognition system includes: an acquisition module 1 and a recognition module 2.

[0057] The acquisition module 1 is used to acquire temperature data collected by the infrared temperature sensor and obtain the receiving signal of the infrared transceiver sensor.

[0058] The identification module 2 is used to determine whether the received signal is a gesture signal based on the temperature data in the current statistical period and the previous statistical period when the received signal indicates that the infrared transceiver sensor receives reflected infrared light.

[0059] When the infrared transceiver sensor receives the reflected infrared light, the level of the received signal is flipped. Specifically, when the infrared light emitted by the infrared transceiver sensor is blocked, it is reflected back and received by the infrared receiving tube of the infrared transceiver sensor, and the output signal of the infrared receiving tube is flipped.

[0060] The temperature measurement characteristics of the infrared temperature sensor are used in conjunction with an algorithm to judge gestures (waving). Combined with the received signal judgment of the infrared transceiver sensor, it is possible to both judge gesture (waving) signals and filter out smoke (oil smoke, water vapor, etc.) interference signals.

[0061] In this embodiment, whether the received signal is a gesture signal is determined by using the temperature data in the most recent two statistical periods. When the temperature data meets the preset change conditions, the received signal is determined to be a gesture signal, thereby avoiding the interference of smoke and the resulting malfunction of the range hood, and improving the accuracy and efficiency of gesture recognition. At the same time, there are no requirements for the installation distance between the infrared temperature sensor and the infrared transceiver sensor, and there is no need to process the time difference between the measurement signals of the two sensors, which reduces the requirements for installation space and makes the component layout of the range hood more flexible.

[0062] During specific implementation, the identification module 2 is specifically used to calculate the current average value and the current variance value of the temperature data in the current statistical period, and calculate the previous average value of the temperature data in the previous statistical period.

[0063] The recognition module 2 is further specifically configured to determine that the received signal is a gesture signal if the difference between the current average value and the previous average value is greater than a preset difference threshold and the current variance value is greater than a preset variance threshold.

[0064] Among them, the infrared temperature sensor collects a certain amount of temperature data in each statistical period.

[0065] The difference value being greater than the difference threshold and the current variance value being greater than the variance threshold are change conditions for determining that the received signal is a gesture signal.

[0066] The difference threshold and variance threshold can be set according to actual needs.

[0067] In this embodiment, whether the received signal is a gesture signal is determined by using the temperature data in the most recent two statistical periods. When the temperature data meets the preset change conditions, the received signal is determined to be a gesture signal. Specifically, if the average value and variance value of the temperature data meet the change conditions, the received signal is a gesture signal. This avoids the interference of smoke and the resulting malfunction of the range hood, and improves the accuracy and efficiency of gesture recognition. At the same time, there are no requirements for the installation distance between the infrared temperature sensor and the infrared transceiver sensor, and there is no need to process the time difference between the measurement signals of the two sensors, which reduces the requirements for installation space and makes the component layout of the range hood more flexible.

[0068] During specific implementation, the identification module 2 is further configured to determine that the received signal is a smoke interference signal if the difference value is less than or equal to a difference threshold value and / or the current variance value is less than or equal to a variance threshold value.

[0069] As long as one of the difference value and the current variance value does not meet the change condition, it can be determined that the received signal is a smoke interference signal.

[0070] In this embodiment, whether a received signal is a gesture signal is determined by using temperature data from the most recent two statistical periods. When the temperature data meets a preset change condition, the received signal is determined to be a gesture signal. Specifically, if the average value and variance value of the temperature data meet the change condition, the received signal is a gesture signal; if either the average value or the variance value does not meet the change condition, the received signal is a smoke interference signal. This avoids smoke interference and the resulting malfunction of the range hood, thereby improving the accuracy and efficiency of gesture recognition. At the same time, there are no requirements for the installation distance between the infrared temperature sensor and the infrared transceiver sensor, and there is no need to process the time difference between the measurement signals of the two sensors, which reduces the requirements for installation space and makes the component layout of the range hood more flexible.

[0071] In specific implementation, the infrared temperature sensor and the infrared transceiver sensor are integrated into one module.

[0072] Among them, in order to further improve reliability and avoid false operation, an infrared temperature sensor and an infrared transceiver sensor are integrated into one module for judgment. Since the working mechanisms and detection methods of these two sensors are different, the time difference of the detection signals of the two sensors does not need to be specifically processed. In other words, there are no requirements for the installation distance between the infrared temperature sensor and the infrared transceiver sensor. There is no need to process the time difference of the measurement signals of the two sensors. The two sensors can be integrated into one module, which reduces the requirements for installation space and further reduces the distance of the window for waving through.

[0073] In this embodiment, whether the received signal is a gesture signal is determined by using the temperature data in the most recent two statistical periods. When the temperature data meets the preset change conditions, the received signal is determined to be a gesture signal. Specifically, if the average value and variance value of the temperature data meet the change conditions, the received signal is a gesture signal. This avoids the interference of smoke and the resulting malfunction of the range hood, and improves the accuracy and efficiency of gesture recognition. At the same time, there are no requirements for the installation distance between the infrared temperature sensor and the infrared transceiver sensor, and there is no need to process the time difference between the measurement signals of the two sensors. The two sensors can be integrated into one module, which reduces the requirements for installation space and makes the component layout of the range hood more flexible.

[0074] The following is an example of implementing a method for preventing smoke interference with gesture recognition for a range hood.

[0075] Reference Figure 3 Each statistical cycle lasts for t, and the infrared temperature sensor collects n temperature data points, T(n), during each statistical cycle (time t). When the infrared receiving tube of the infrared transceiver sensor receives the reflected infrared light, the output signal of the infrared receiving tube flips to a low level.

[0076] When the infrared receiving tube output signal turns to low level, calculate the difference ΔTavg between the average value of the n sample temperature data and the average value of the n sample temperature in the previous stage, and calculate the variance value s of the n sample temperature data at the same time. 2 The difference threshold is ΔT0, and the variance threshold is s 2 (0). When ΔTavg>ΔT0 and s 2 >s 2 (0), the received signal is identified as a gesture (waving) signal; otherwise, the received signal is identified as a smoke interference signal.

[0077] Example 3

[0078] Figure 5 This is a schematic diagram of the structure of a range hood provided in Example 3 of the present invention. The range hood includes a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the program, the range hood anti-smoke interference gesture recognition method in Example 1 is implemented. Figure 5 The range hood 30 shown is merely an example and should not limit the functions and scope of use of the embodiments of the present invention.

[0079] The range hood 30 may be implemented as a general-purpose computing device, such as a server. Components of the range hood 30 may include, but are not limited to, the at least one processor 31, the at least one memory 32, and a bus 33 connecting various system components (including the memory 32 and the processor 31).

[0080] The bus 33 includes a data bus, an address bus, and a control bus.

[0081] The memory 32 may include a volatile memory, such as a random access memory (RAM) 321 and / or a cache memory 322 , and may further include a read-only memory (ROM) 323 .

[0082] The memory 32 may also include a program / utility 325 having a set (at least one) of program modules 324, such program modules 324 including but not limited to: an operating system, one or more application programs, other program modules, and program data, each of which or some combination may include an implementation of a network environment.

[0083] The processor 31 executes various functional applications and data processing by running computer programs stored in the memory 32, such as the smoke interference prevention gesture recognition method for the range hood in Example 1 of the present invention.

[0084] The range hood 30 can also communicate with one or more external devices 34 (e.g., buttons, pointing devices, etc.). Such communication can be performed through an input / output (I / O) interface 35. In addition, the model-generated range hood 30 can also communicate with one or more networks (e.g., a local area network (LAN), a wide area network (WAN), and / or a public network, such as the Internet) through a network adapter 36. As shown, the network adapter 36 communicates with other modules of the model-generated range hood 30 via a bus 33. It should be understood that although not shown in the figure, other hardware and / or software modules can be used in conjunction with the model-generated range hood 30, including but not limited to: microcode, device drivers, redundant processors, external disk drive arrays, RAID (RAID) systems, tape drives, and data backup storage systems.

[0085] When implementing it, refer to Figure 6 The range hood further includes an infrared temperature sensor 37 and an infrared transceiver sensor 38, which are integrated into one module.

[0086] In this embodiment, there is no requirement for the installation distance between the infrared temperature sensor and the infrared transceiver sensor. There is no need to process the time difference between the measurement signals of the two sensors. The two sensors can be integrated into one module, which reduces the requirements for installation space and makes the component layout of the range hood more flexible.

[0087] It should be noted that although the above detailed description mentions several units / modules or sub-units / modules of the range hood, this division is merely exemplary and not mandatory. In fact, according to embodiments of the present invention, the features and functions of two or more units / modules described above may be embodied in a single unit / module; conversely, the features and functions of a single unit / module described above may be further divided and embodied by multiple units / modules.

[0088] Example 4

[0089] This embodiment provides a computer-readable storage medium having a computer program stored thereon. When the program is executed by a processor, the method for preventing smoke interference gesture recognition for a range hood in embodiment 1 is implemented.

[0090] The readable storage medium may include, but is not limited to, a portable disk, a hard disk, a random access memory, a read-only memory, an erasable programmable read-only memory, an optical storage device, a magnetic storage device, or any suitable combination thereof.

[0091] In a possible embodiment, the present invention can also be implemented in the form of a program product, which includes program code. When the program product is run on a terminal device, the program code is used to enable the terminal device to execute the anti-smoke interference gesture recognition method for the range hood in Example 1.

[0092] The program code for executing the present invention may be written in any combination of one or more programming languages, and may be executed entirely on the user device, partially on the user device, as an independent software package, partially on the user device and partially on a remote device, or entirely on the remote device.

[0093] Although specific embodiments of the present invention have been described above, those skilled in the art will appreciate that these are merely illustrative and that the scope of the present invention is defined by the appended claims. Those skilled in the art may make various changes or modifications to these embodiments without departing from the principles and essence of the present invention, and such changes and modifications are intended to fall within the scope of the present invention.

Claims

1. A method for preventing smoke interference in range hood gesture recognition, characterized in that: The range hood includes an infrared temperature sensor and an infrared transceiver sensor, and the smoke interference prevention gesture recognition method includes: Acquiring temperature data collected by the infrared temperature sensor and acquiring a receiving signal from the infrared transceiver sensor; When the received signal indicates that the infrared transceiver sensor receives reflected infrared light, determining whether the received signal is a gesture signal based on temperature data in a current statistical period and a previous statistical period; There is a number of temperature data in each statistical period. The determining whether the received signal is a gesture signal based on the temperature data in the current statistical period and the previous statistical period includes: Calculate the current average value and the current variance value of the temperature data in the current statistical period, and calculate the previous average value of the temperature data in the previous statistical period; If the difference between the current average value and the previous average value is greater than a preset difference threshold and the current variance value is greater than a preset variance threshold, then the received signal is a gesture signal.

2. The method for preventing smoke interference in range hood gesture recognition according to claim 1, wherein: The step of determining whether the received signal is a gesture signal based on the temperature data in the current statistical period and the previous statistical period further includes: If the difference is less than or equal to the difference threshold and / or the current variance is less than or equal to the variance threshold, the received signal is a smoke interference signal.

3. The method for preventing smoke interference in range hood gesture recognition according to claim 1, wherein: The infrared temperature sensor and the infrared transceiver sensor are integrated into one module.

4. A smoke-interference-proof gesture recognition system for a range hood, characterized in that: The range hood includes an infrared temperature sensor and an infrared transceiver sensor, and the anti-smoke interference gesture recognition system includes: an acquisition module and a recognition module; The acquisition module is used to acquire the temperature data collected by the infrared temperature sensor and the reception signal of the infrared transceiver sensor; The recognition module is configured to determine whether the received signal is a gesture signal based on temperature data in a current statistical period and a previous statistical period when the received signal indicates that the infrared transceiver sensor has received reflected infrared light; The identification module is specifically configured to calculate a current average value and a current variance value of the temperature data in the current statistical period, and calculate a previous average value of the temperature data in the previous statistical period; The recognition module is further specifically configured to determine that the received signal is a gesture signal if a difference between the current average value and the previous average value is greater than a preset difference threshold and the current variance value is greater than a preset variance threshold.

5. The smoke interference prevention gesture recognition system for a range hood according to claim 4, characterized in that: The identification module is further specifically configured to determine that the received signal is a smoke interference signal if the difference is less than or equal to the difference threshold and / or the current variance is less than or equal to the variance threshold.

6. A range hood comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein: When the processor executes the computer program, the smoke interference prevention gesture recognition method for a range hood according to any one of claims 1 to 3 is implemented.

7. The range hood according to claim 6, wherein: The range hood further comprises an infrared temperature sensor and an infrared transceiver sensor, and the infrared temperature sensor and the infrared transceiver sensor are integrated into one module.

8. A computer storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the method for preventing smoke interference gesture recognition for a range hood according to any one of claims 1 to 3 is implemented.

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