Dish washing machine exhaust control method and dish washing machine

Abstract

The invention relates to the technical field of dishwashers, in particular to an exhaust control method of a dishwasher and the dishwasher. The problem that a human body is easily scalded by mistake during steam exhaust operation of an existing dish washing machine is solved. The exhaust control method of the dish-washing machine comprises the steps that a first detection device detects whether a human body enters a first preset area or not in real time within first preset time before the dish-washing machine executes steam exhaust operation; when it is detected that the human body enters the first preset area, the second detection device detects the distance between the human body and the exhaust port of the dish washing machine in real time and records the distance as the actual distance; selectively performing a delay operation according to the actual distance; wherein the delay operation is to delay the execution of the steam exhaust operation. The dish-washing machine can effectively prevent a human body from being scalded, steam exhaust operation is conducted in a safe environment, safe exhaust is guaranteed, and user experience is improved.

Description

Technical Field

[0001] This invention relates to the field of dishwasher technology, specifically providing a method for controlling the exhaust of a dishwasher and a dishwasher itself. Background Technology

[0002] As people's living standards improve, the number of household appliances in users' homes is gradually increasing, and dishwashers are becoming more and more popular.

[0003] The drying stage of a dishwasher is generally set after the washing stage. Currently, the most effective drying method is to raise the temperature during the final rinse stage to increase the temperature of the dishes and the dishwasher drum. After rinsing, because the dishwasher drum is in a high-temperature and high-humidity state, the residual heat of the dishes alone is not enough to achieve a good drying effect. Therefore, a fan is used to heat and dehumidify the air to achieve the dishwasher's drying process. The intake fan draws in low-temperature, low-humidity air from the outside of the dishwasher, which is then heated by a heater to become high-temperature, low-humidity air before entering the drum to prevent the temperature inside the drum from dropping too quickly. The exhaust fan expels the high-humidity air from the drum, reducing the humidity and balancing the air pressure inside the drum. The combined effect of the intake and exhaust fans increases the airflow inside the drum, accelerating the drying of the dishes. However, since the exhaust fan often expels high-temperature gas from the drum in the initial stage of drying, which also contains some water vapor, when this high-temperature, high-humidity gas comes into contact with a cold surface such as human skin, it will immediately condense and release a large amount of heat, which can be harmful to the human body.

[0004] Accordingly, a new technical solution is needed in this field to solve the above-mentioned technical problems. Summary of the Invention

[0005] The present invention aims to solve the above-mentioned technical problem, namely, to solve the problem that existing dishwashers are prone to accidentally scalding people when they are venting steam.

[0006] In a first aspect, the present invention provides an exhaust control method for a dishwasher, wherein the dishwasher is provided with a first detection device and a second detection device, the first detection device being used to detect whether a human body enters a first preset area, and the second detection device being used to detect the distance between the human body and the exhaust port of the dishwasher, the exhaust control method comprising: the first detection device detecting in real time whether a human body enters the first preset area within a first preset time period before the dishwasher performs a steam exhaust operation; when a human body is detected to have entered the first preset area, the second detection device detecting in real time the distance between the human body and the exhaust port of the dishwasher, and recording it as the actual distance; selectively performing a delay operation based on the actual distance; wherein the delay operation specifically delays the execution of the steam exhaust operation.

[0007] In the preferred embodiment of the above-mentioned exhaust control method for dishwasher, the step of "selectively performing a delayed operation based on the actual distance" specifically includes: comparing the actual distance with a preset danger distance; and selectively performing the delayed operation based on the comparison result.

[0008] In the preferred embodiment of the above-mentioned exhaust control method for dishwasher, the step of "selectively performing the delay operation according to the comparison result" specifically includes: if the actual distance is greater than the preset danger distance, the delay operation is not performed; if the actual distance is not greater than the preset danger distance, the delay operation is performed.

[0009] In the preferred embodiment of the above-mentioned exhaust control method for dishwashers, the delay operation is not performed if no human body is detected entering the first preset area.

[0010] In a preferred embodiment of the above-mentioned exhaust control method for a dishwasher, when the delayed operation is not performed, the exhaust control method further includes: the first detection device detecting in real time whether a human body exists in the first preset area; selectively executing a first voice warning based on the detection result; and / or, the dishwasher is further provided with a third detection device, the third detection device being used to detect whether a human body enters a second preset area, wherein the second preset area is further away from the dishwasher than the first preset area; during the steam exhaust operation, the exhaust control method further includes: the third detection device detecting in real time whether a human body enters the second preset area; selectively executing a second voice warning based on the detection result.

[0011] In the preferred embodiment of the above-mentioned exhaust control method for dishwasher, the step of "selectively executing a first voice warning based on the detection result" specifically includes: if a human body is present in the first preset area, the first voice warning is executed; if no human body is present in the first preset area, the first voice warning is not executed; and / or, the step of "selectively executing a second voice warning based on the detection result" specifically includes: if a human body enters the second preset area, the second voice warning is executed; if no human body enters the second preset area, the second voice warning is not executed.

[0012] In the preferred embodiment of the above-mentioned exhaust control method for a dishwasher, during the execution of the delayed operation, the exhaust control method further includes: the second detection device continuing to detect the distance between the human body and the exhaust port of the dishwasher in real time, and recording it as the actual distance; determining whether the actual distance is greater than a preset danger distance; if the actual distance is greater than the preset danger distance, then ending the execution of the delayed operation; if the actual distance is not greater than the preset danger distance, then continuing the execution of the delayed operation.

[0013] In the preferred embodiment of the above-mentioned exhaust control method for dishwasher, the first detection device is a first infrared sensor; and / or, the second detection device is an ultrasonic ranging sensor.

[0014] In the preferred embodiment of the above-mentioned exhaust control method for dishwashers, the third detection device is a second infrared sensor.

[0015] In a second aspect, the present invention provides a dishwasher including a controller configured to perform the above-described dishwasher exhaust control method.

[0016] With the above technical solution adopted, the dishwasher of the present invention is provided with a first detection device and a second detection device. The exhaust control method of the dishwasher includes: before the dishwasher performs the steam exhaust operation, the first detection device detects in real time whether a human body enters the first preset area. When a human body is detected to have entered the first preset area, the second detection device detects in real time the distance between the human body and the exhaust port of the dishwasher, records it as the actual distance, and selectively performs a delay operation based on the actual distance. This setting method, through the dual detection of the first and second detection devices, determines whether a human body is in the danger zone of the exhaust, and then selectively performs a delay operation, effectively avoiding scalding of the human body, making the steam exhaust operation take place in a safe environment, ensuring exhaust safety, and improving the user experience.

[0017] Furthermore, the step of "selectively performing delayed operation based on actual distance" specifically includes: comparing the actual distance with the preset danger distance; if the actual distance is greater than the preset danger distance, then no delayed operation is performed; if the actual distance is not greater than the preset danger distance, then the delayed operation is performed. This setting method compares the actual distance with the preset danger distance, and the judgment process is simple, the response speed is fast, the accuracy is high, and it is convenient to control and use.

[0018] Furthermore, if no human body is detected entering the first preset area, it means that no one is near the dishwasher, so the delay operation is not performed, and the steam exhaust operation is performed directly after reaching the steam exhaust node.

[0019] Furthermore, during the non-delay operation, the exhaust control method also includes: a first detection device detecting in real time whether a human body exists in the first preset area; selectively executing a first voice warning based on the detection result; with this setting, during the non-delay operation, a human body may exist in the first preset area, even if the human body is not in the danger zone. If the human body moves towards the dishwasher, there may be a danger during exhaust. Therefore, the first detection device detects in real time whether a human body exists in the first preset area in order to selectively execute the first voice warning, thereby reminding the human body to stay away from the dishwasher to avoid burns during steam exhaust operation.

[0020] Furthermore, during the steam exhaust operation, the exhaust control method also includes: a third detection device continuously detecting whether a human body enters a second preset area outside the first preset area, and selectively executing a second voice warning based on the detection results; with this setup, during the steam exhaust operation, the third detection device continuously detects whether a person is approaching the dishwasher, and executes a second voice warning when the person enters the second preset area but has not yet entered the first preset area, so as to remind the user that steam is being exhausted ahead, preventing the person from continuing to move towards the dishwasher, thereby ensuring safety.

[0021] Furthermore, during the execution of the delayed operation, the exhaust control method also includes: the second detection device continues to detect the distance between the human body and the exhaust port of the dishwasher in real time, and records it as the actual distance; it determines whether the actual distance is greater than the preset danger distance; if the actual distance is greater than the preset danger distance, the execution of the delayed operation ends; if the actual distance is not greater than the preset danger distance, the execution of the delayed operation continues. This setting method, by comparing the actual distance with the preset danger distance in real time, determines whether the human body has moved away from the danger zone, thereby selectively ending the execution of the delayed operation so that the steam exhaust operation can be performed even after the human body has moved away from the dishwasher. Attached Figure Description

[0022] The preferred embodiments of the present invention are described below with reference to the accompanying drawings, in which:

[0023] Figure 1 This is a flowchart of the main steps of the dishwasher exhaust control method of the present invention;

[0024] Figure 2 This is a flowchart of a first embodiment of the exhaust control method for a dishwasher according to the present invention;

[0025] Figure 3 This is a flowchart of a second embodiment of the exhaust control method for the dishwasher of the present invention;

[0026] Figure 4 This is a flowchart of a third embodiment of the exhaust control method for the dishwasher of the present invention;

[0027] Figure 5 This is a flowchart of Embodiment 4 of the exhaust control method for the dishwasher of the present invention. Detailed Implementation

[0028] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0029] It should be noted that in the description of this invention, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0030] Furthermore, it should be noted that, in the description of this invention, unless otherwise explicitly specified and limited, the terms "set" and "install" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through other components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0031] Based on the technical problem pointed out in the background art, existing dishwashers are prone to causing accidental burns to people during steam exhaust operation.

[0032] The dishwasher exhaust control method of the present invention uses dual detection by a first detection device and a second detection device to determine whether there is a human body in the danger zone of exhaust, and then selectively performs a delayed operation to effectively avoid scalding the human body during the steam exhaust operation, so that the steam exhaust operation is carried out in a safe environment, ensuring exhaust safety and improving user experience.

[0033] Specifically, the dishwasher of the present invention is provided with a first detection device and a second detection device. The first detection device is used to detect whether a human body enters a first preset area, and the second detection device is used to detect the distance between the human body and the exhaust port of the dishwasher.

[0034] It should be noted that this invention does not impose any restrictions on the specific structure of the first detection device, as long as the first detection device can detect whether a human body has entered the first preset area. In practical applications, those skilled in the art can set the specific structure of the first detection device according to actual needs. For example, the first detection device can be a camera; or, the first detection device can be an infrared sensor; etc. Adjustments and changes to the specific structure of the first detection device do not deviate from the basic principles of this invention and should all be limited to the protection scope of this invention.

[0035] Preferably, the first detection device is a first infrared sensor installed on the dishwasher housing.

[0036] It should be noted that this invention does not impose any limitations on the specific structure of the second detection device. As long as the second detection device can detect the distance between the human body within the first preset area and the dishwasher's exhaust port, it is acceptable. In practical applications, those skilled in the art can customize the specific structure of the second detection device according to actual needs. Any adjustments or changes to the structure of the second detection device do not deviate from the basic principles of this invention and should be limited to the scope of protection of this invention.

[0037] Preferably, the second detection device is an ultrasonic ranging sensor installed on the dishwasher housing.

[0038] Preferably, the dishwasher of the present invention is further provided with a third detection device, which is used to detect whether a human body enters the second preset area, wherein the second preset area is further away from the dishwasher than the first preset area.

[0039] It should be noted that this invention does not impose any restrictions on the specific structure of the third detection device, as long as the third detection device can detect whether a human body has entered the second preset area. In practical applications, those skilled in the art can set the specific structure of the third detection device according to actual needs. For example, the third detection device can be a camera; or, the third detection device can be an infrared sensor; etc. Adjustments and changes to the specific structure of the third detection device do not depart from the basic principles of this invention and should all be limited to the protection scope of this invention.

[0040] Preferably, the third detection device is a second infrared sensor installed on the dishwasher housing.

[0041] In addition, the dishwasher of the present invention also includes a controller configured to perform the exhaust control method of the dishwasher of the present invention.

[0042] Specifically, please refer to Figure 1 The exhaust control method for the dishwasher of the present invention includes the following steps:

[0043] S1: Before the dishwasher performs the steam exhaust operation, the first detection device detects in real time whether a human body enters the first preset area.

[0044] Within a first preset time interval before the start of the steam exhaust operation, the first detection device detects in real time whether a human body enters the first preset area, thereby determining whether someone is approaching the dishwasher, so as to subsequently determine whether to perform a delayed operation.

[0045] Specifically, the first preset time can be 30 seconds, 40 seconds, or 1 minute. No restrictions are placed on the first preset time; in practical applications, those skilled in the art can set the specific value of the first preset time according to actual needs.

[0046] S2: When a human body is detected entering the first preset area, the second detection device detects the distance between the human body and the exhaust port of the dishwasher in real time and records it as the actual distance.

[0047] When a human body is detected entering the first preset area, the second detection device detects the distance between the human body and the dishwasher's exhaust port in real time and records it as the actual distance so that a delayed operation can be selectively performed based on the actual distance.

[0048] S3: Selectively perform a delay operation based on the actual distance; specifically, the delay operation is to delay the execution of the steam exhaust operation.

[0049] It should be noted that this invention does not impose any limitations on the specific steps of step S3. In practical applications, those skilled in the art can set the specific execution steps of step S3 according to actual needs. For example, the delay operation can be selectively executed directly based on the actual distance; or, the actual distance can be compared with a preset distance, and the delay operation can be selectively executed based on the comparison result. Adjustments and changes to the specific execution steps of step S3 do not deviate from the basic principles of this invention and should all be limited to the protection scope of this invention.

[0050] The exhaust control method of the dishwasher of the present invention uses dual detection by a first detection device and a second detection device to determine whether there is a human body in the danger zone of exhaust, and then selectively performs a delayed operation to effectively avoid scalding the human body during the steam exhaust operation, so that the steam exhaust operation is carried out in a safe environment, ensuring exhaust safety and improving user experience.

[0051] The steam exhaust control method of the dishwasher of the present invention will be described in detail below through several specific embodiments.

[0052] Example 1

[0053] Please see Figure 2 The exhaust control method for the dishwasher in this embodiment includes the following steps:

[0054] S1: Before the dishwasher performs the steam exhaust operation, the first detection device detects in real time whether a human body enters the first preset area.

[0055] Within a first preset time interval before the start of the steam exhaust operation, the first detection device detects in real time whether a human body enters the first preset area, thereby determining whether someone is approaching the dishwasher, so as to subsequently determine whether to perform a delayed operation.

[0056] Specifically, the first preset time can be 30 seconds, 40 seconds, or 1 minute. No restrictions are placed on the first preset time; in practical applications, those skilled in the art can set the specific value of the first preset time according to actual needs.

[0057] S2: When a human body is detected entering the first preset area, the second detection device detects the distance between the human body and the exhaust port of the dishwasher in real time and records it as the actual distance.

[0058] The second detection device detects the distance between the human body and the dishwasher's exhaust port, and records it as the actual distance. Based on the actual distance, it selectively performs a delayed operation, specifically delaying the steam exhaust operation.

[0059] Specifically, the steps of "selectively performing delayed operations based on the actual distance" include steps S31, S32, and S33.

[0060] S31: Determine whether the actual distance is greater than the preset danger distance.

[0061] The actual distance is compared with the preset danger distance to determine whether the actual distance is greater than the preset danger distance, so that a delay operation can be selectively performed based on the comparison result.

[0062] Specifically, the step of "selectively performing delayed operations based on the comparison results" includes: if the actual distance is greater than the preset danger distance, then step S33 is executed; if the actual distance is not greater than the preset danger distance, then step S32 is executed.

[0063] S32: Perform a delayed operation.

[0064] When the judgment result is "no", the actual distance is not greater than the preset danger distance. This means that the human body is relatively close to the dishwasher's exhaust port and is located in the danger zone. Performing the steam exhaust operation will cause harm to the human body. Therefore, a delay operation is performed to postpone the steam exhaust operation so that the human body is away from the danger zone before performing the steam exhaust operation, so as to avoid the steam causing accidental injury to the human body during the steam exhaust process.

[0065] S33: Do not perform delayed operation.

[0066] When the judgment result is "yes", the actual distance is greater than the preset danger distance, which means that the human body is far away from the dishwasher's exhaust port and is within the safe zone. Even if the steam exhaust operation is performed, the steam will not cause harm to the human body. Therefore, the delayed operation is not performed, and the steam exhaust operation is performed normally after reaching the steam exhaust node.

[0067] The dishwasher exhaust control method in this embodiment compares the actual distance with the preset danger distance. The judgment process is simple, the response speed is fast, the accuracy is high, and it is convenient to control and use, effectively ensuring exhaust safety.

[0068] Example 2

[0069] Please see Figure 3 Based on Embodiment 1, the exhaust control method of the dishwasher in this embodiment further includes: if no human body is detected entering the first preset area, then the delay operation is not performed.

[0070] If no human body enters the first preset area, it means that no one is near the dishwasher. Normal steam venting will not cause accidental injury to anyone, so the delayed operation will not be executed. That is, the steam venting operation will be executed normally after reaching the steam venting node.

[0071] Example 3

[0072] Please see Figure 4 Based on Embodiment 1 or Embodiment 2, during the execution of the delay operation, the dishwasher exhaust control method of this embodiment further includes:

[0073] S321: The second detection device continues to detect the distance between the human body and the dishwasher's exhaust port in real time, and records it as the actual distance.

[0074] S322: Determine whether the actual distance is greater than the preset danger distance.

[0075] The actual distance is compared with the preset danger distance to determine whether the actual distance is greater than the preset danger distance, and then to determine whether the human body has left the danger area. Further, it is determined whether to end the delayed operation so as to resume the steam exhaust operation.

[0076] S323: If the actual distance is greater than the preset danger distance, then the delayed operation will be terminated.

[0077] When the actual distance is greater than the preset danger distance, it means that the distance between the human body and the dishwasher's exhaust port is greater than the preset danger distance, and the human body is no longer in the danger zone, thus ending the delayed operation.

[0078] S324: If the actual distance is not greater than the preset danger distance, continue to perform the delayed operation.

[0079] If the actual distance is not greater than the preset danger distance, it means that the distance between the human body and the dishwasher's exhaust port is still within the preset danger distance and the human body is still in the danger zone, so the delayed operation will continue.

[0080] The configuration method of this embodiment compares the actual distance with the preset danger distance in real time to determine whether the human body is far away from the danger area, and then selectively ends the execution of the delayed operation so that the steam exhaust operation can be performed in time after the human body is far away from the danger area.

[0081] Example 4

[0082] Please see Figure 5 Based on Embodiment 1, Embodiment 2, or Embodiment 3, in the absence of a delay operation, the dishwasher exhaust control method of this embodiment further includes:

[0083] S331: The first detection device detects in real time whether there is a human body in the first preset area.

[0084] During the non-delay operation, a person may be within the first preset area but not within the preset danger distance. Therefore, if the person approaches the dishwasher again, there is a risk of being scalded by steam. The first detection device continuously monitors the presence of a person within the first preset area and selectively executes a first voice warning based on the detection results. This first voice warning is used to remind the person to move away from the dishwasher in time to avoid accidental injury during steam venting and ensure user safety.

[0085] Specifically, the step of "selectively executing the first voice warning based on the detection results" includes: if there is a human body in the first preset area, then execute step S332; if there is no human body in the first preset area, then execute step S333.

[0086] S332: Execute the first voice alert.

[0087] If a human body is present in the first preset area, and that person moves closer to the dishwasher, they will enter a danger zone, triggering the first voice warning to remind them to move away from the dishwasher in time. This prevents accidental injury during the steam release operation and ensures user safety.

[0088] S333: Do not execute the first voice warning.

[0089] If there are no human bodies in the first preset area, it means that the steam will not accidentally injure anyone, and therefore the first voice warning will not be executed.

[0090] In the dishwasher exhaust control method of this embodiment, when the delay operation is not performed, the first detection device detects in real time whether there is a human body in the first preset area, so as to selectively execute the first voice warning, thereby reminding the human body to stay away from the dishwasher to avoid being scalded during the steam exhaust operation.

[0091] Example 5

[0092] Based on Embodiment 1, Embodiment 2, Embodiment 3, or Embodiment 4, the exhaust control method of the dishwasher in this embodiment further includes the following during the steam exhaust operation:

[0093] S41: The third detection device detects in real time whether a human body enters the second preset area.

[0094] The steam exhaust operation usually lasts for a period of time, during which people may approach the dishwasher. Therefore, the third detection device detects in real time whether a person enters the second preset area, and further detects whether anyone approaches the dishwasher outside the first preset area, so as to selectively execute the second voice warning based on the detection results.

[0095] S42: Based on the detection results, selectively execute the second voice warning. The second voice warning is used to remind the user that the dishwasher is releasing steam, and that they should not continue to approach the dishwasher to avoid burns and ensure safe use.

[0096] Specifically, step S42, "selectively executing a second voice alert based on the detection results," includes: S421: if a human body enters the second preset area, then the second voice alert is executed; S422: if no human body enters the second preset area, then the second voice alert is not executed.

[0097] When a person enters the second preset area, a second voice warning is issued to remind the user not to approach the dishwasher, thus ensuring safety.

[0098] In this embodiment, during the steam exhaust operation, the third detection device detects in real time whether anyone is approaching the dishwasher. When a person approaches the dishwasher, a second voice warning is issued before the person enters the first preset area to remind the user that steam is being exhausted in front of them, thus preventing the person from continuing to approach the dishwasher and ensuring safety.

[0099] Furthermore, it should be noted that the exhaust control method of this invention can be set to be turned on or off by the user. Specifically, the user can choose whether to turn off the delayed operation exhaust control method of this invention through the operation panel or mobile APP to suit the user's family situation. The exhaust control method is turned on by default at the factory to ensure safety, especially suitable for families with children or elderly people. If the user has special needs, they can turn it off themselves. For example, if the family consists mainly of young people, they can turn off the exhaust control method through the mobile APP or operation panel to save time, thus meeting personalized needs and improving the user experience.

[0100] The technical solution of the present invention has been described above with reference to the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the scope of protection of the present invention is obviously not limited to these specific embodiments. Without departing from the principles of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after such changes or substitutions will all fall within the scope of protection of the present invention.

Claims

1. A method for controlling the exhaust of a dishwasher, characterized in that, The dishwasher is equipped with a first detection device and a second detection device. The first detection device is used to detect whether a human body has entered a first preset area, and the second detection device is used to detect the distance between the human body and the exhaust port of the dishwasher. The exhaust control method includes: The first detection device detects in real time whether a human body enters the first preset area within a first preset time period before the dishwasher performs the steam exhaust operation. When a human body is detected entering the first preset area, the second detection device detects the distance between the human body and the exhaust port of the dishwasher in real time and records it as the actual distance; Based on the actual distance, selectively perform delay operations; Specifically, the delay operation refers to delaying the execution of the steam exhaust operation.

2. The exhaust control method for a dishwasher according to claim 1, characterized in that, The step of "selectively performing a delay operation based on the actual distance" specifically includes: Compare the actual distance with the preset danger distance; Based on the comparison results, the delayed operation is selectively performed.

3. The exhaust control method for a dishwasher according to claim 2, characterized in that, The step of "selectively performing the delayed operation based on the comparison results" specifically includes: If the actual distance is greater than the preset danger distance, the delay operation will not be performed; If the actual distance is not greater than the preset danger distance, then the delay operation is performed.

4. The exhaust control method for a dishwasher according to claim 1, characterized in that, If no human body is detected entering the first preset area, the delay operation will not be performed.

5. The exhaust control method for a dishwasher according to any one of claims 1 to 4, characterized in that, During the process of not performing the aforementioned delay operation, the exhaust control method further includes: The first detection device detects in real time whether a human body is present in the first preset area; Based on the test results, the first voice alert is selectively executed; And / or, The dishwasher is also equipped with a third detection device, which is used to detect whether a human body enters the second preset area, wherein the second preset area is further away from the dishwasher than the first preset area. During the steam exhaust operation, the exhaust control method further includes: The third detection device detects in real time whether a human body enters the second preset area; Based on the test results, a second voice alert is selectively executed.

6. The exhaust control method for a dishwasher according to claim 5, characterized in that, The steps of "selectively executing the first voice alert based on the test results" specifically include: If a human body is present within the first preset area, the first voice warning will be executed. If there is no human body in the first preset area, the first voice warning will not be executed; And / or, The steps of "selectively executing a second voice alert based on the test results" specifically include: If a human body enters the second preset area, a second voice warning will be issued; If no human body enters the second preset area, the second voice warning will not be executed.

7. The exhaust control method for a dishwasher according to any one of claims 1 to 4, characterized in that, During the execution of the delay operation, the exhaust control method further includes: The second detection device continues to detect the distance between the human body and the exhaust port of the dishwasher in real time, and records it as the actual distance; Determine whether the actual distance is greater than the preset danger distance; If the actual distance is greater than the preset danger distance, then the delayed operation is terminated. If the actual distance is not greater than the preset danger distance, then the delay operation continues.

8. The exhaust control method for a dishwasher according to claim 1, characterized in that, The first detection device is a first infrared sensor; And / or, the second detection device is an ultrasonic ranging sensor.

9. The exhaust control method for a dishwasher according to claim 5, characterized in that, The third detection device is a second infrared sensor.

10. A dishwasher, comprising a controller, characterized in that, The controller is configured to perform the exhaust control method of the dishwasher according to any one of claims 1 to 9.

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