WO2018059231A1 - 风扇及其风速控制方法 - Google Patents

风扇及其风速控制方法 Download PDF

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Publication number
WO2018059231A1
WO2018059231A1 PCT/CN2017/101436 CN2017101436W WO2018059231A1 WO 2018059231 A1 WO2018059231 A1 WO 2018059231A1 CN 2017101436 W CN2017101436 W CN 2017101436W WO 2018059231 A1 WO2018059231 A1 WO 2018059231A1
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Prior art keywords
fan
wind speed
fan body
infrared sensor
person
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PCT/CN2017/101436
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English (en)
French (fr)
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郭新生
卢燕
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广东美的环境电器制造有限公司
美的集团股份有限公司
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Publication of WO2018059231A1 publication Critical patent/WO2018059231A1/zh

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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D27/00Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
    • F04D27/004Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids by varying driving speed
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05DINDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2270/00Control
    • F05D2270/01Purpose of the control system
    • F05D2270/02Purpose of the control system to control rotational speed (n)

Definitions

  • the present invention relates to the field of household appliances, and in particular, to a wind speed control method for a fan and a fan.
  • a fan is a commonly used small appliance.
  • the fan usually includes a fan body that causes air to flow and a fan base for fixing the fan body.
  • the fan body is swingably disposed on the base of the fan in order to expand the flow range of the air.
  • the effective working area of the fan can be enlarged, but in the range of the active area of the fan, most of the effective working area is wasted, and electric energy is wasted.
  • an object of the present invention is to provide a wind speed control method for a fan, which can improve the working efficiency of the fan and reduce the energy consumption of the fan.
  • a second object of the invention is to propose a fan.
  • a first aspect of the present invention provides a wind speed control method for a fan, wherein the fan includes a fan body and a base, and the fan body is swingably mounted on the base, the method The method includes the following steps: detecting whether there is a person in front of the fan body; and adjusting a wind speed of the fan body according to the detection result.
  • the wind speed control method of the fan by detecting whether there is a person in front of the fan body, and adjusting the wind speed of the fan body according to the detection result, the wind speed of the fan can be flexibly adjusted according to the actual needs of the user.
  • the ability to use energy reasonably can improve the working efficiency of the fan and reduce the energy consumption of the fan, thereby improving the user experience.
  • wind speed control method of the fan according to the above embodiment of the present invention may further have the following additional technical features:
  • adjusting the wind speed of the fan body according to the detection result includes: if the fan body is in front of the fan body, controlling the fan body to run at a first wind speed; if the fan body is in front of the fan body, Then controlling the fan body to operate at a second wind speed, wherein the second wind speed is less than the first wind speed.
  • the rotational speed of the fan blade in the fan body is controlled by a DC motor that controls the fan to adjust the wind speed of the fan body.
  • the presence or absence of a person in front of the fan body is detected by an infrared sensor.
  • detecting, by the infrared sensor, whether there is a person in front of the fan body comprises: determining the infrared Whether the amount of infrared radiation received by the sensor is greater than a preset threshold; if the amount of infrared radiation received by the infrared sensor is greater than the predetermined threshold, determining that there is someone in front of the fan body; if the infrared sensor receives If the amount of infrared radiation that is reached is less than or equal to the predetermined threshold, it is determined that there is no one in front of the fan body.
  • a second aspect of the present invention provides a fan, including: a fan body and a base, wherein the fan body is swingably mounted on the base; and a detecting module, the detecting module And detecting a front side of the fan body; and a control module, wherein the control module is configured to adjust a wind speed of the fan main body according to a detection result of the detecting module.
  • the fan according to the embodiment of the present invention detects whether there is a person in front of the fan body through the detecting module, and adjusts the wind speed of the fan body according to the detection result by the control module, thereby flexibly adjusting the wind speed of the fan according to the actual needs of the user.
  • the ability to use energy reasonably can improve the working efficiency of the fan and reduce the energy consumption of the fan, thereby improving the user experience.
  • the fan according to the above embodiment of the present invention may further have the following additional technical features:
  • control module is configured to control the fan body to run at a first wind speed when there is a person in front of the fan body, and control the fan body to be second when the fan body is unmanned in front of the fan body The wind speed operates, wherein the second wind speed is less than the first wind speed.
  • the fan further includes a DC motor and a fan blade, wherein the fan blade is located in the fan body, and the control module controls the rotation speed of the fan blade by controlling the DC motor to The wind speed of the fan main body is adjusted.
  • the detection module comprises an infrared sensor.
  • the detecting module is configured to determine whether the amount of infrared radiation received by the infrared sensor is greater than a preset threshold, and when the amount of infrared radiation received by the infrared sensor is greater than the preset threshold, determining the A person is in front of the fan body, and when the amount of infrared radiation received by the infrared sensor is less than or equal to the predetermined threshold, it is determined that there is no one in front of the fan body.
  • FIG. 1 is a flow chart of a wind speed control method of a fan according to an embodiment of the present invention
  • FIG. 2 is a flow chart of a wind speed control method of a fan according to an embodiment of the present invention
  • FIG. 3 is a block schematic diagram of a fan in accordance with an embodiment of the present invention.
  • FIG. 1 is a flow chart of a method of controlling a wind speed of a fan according to an embodiment of the present invention.
  • the fan of the embodiment of the invention includes a fan body and a base, and the fan body is swingably mounted on the base.
  • a method for controlling a wind speed of a fan includes the following steps:
  • the fan may detect whether there is a person in front of the fan body through the infrared sensor during the swinging of the fan body.
  • the infrared sensor can be mounted on the fan body and located on the air outlet side of the fan body.
  • the infrared sensor determines whether the amount of infrared radiation received by the infrared sensor is greater than a preset threshold. If the amount of infrared radiation received by the infrared sensor is greater than a preset threshold, it is determined that there is a person in front of the fan body; if the amount of infrared radiation received by the infrared sensor is less than or equal to a preset threshold, it is determined that there is no one in front of the fan body.
  • the blades in the fan body can be driven by a DC motor, and thus the wind speed adjustment of the fan is more flexible.
  • the speed of the fan blade in the fan body can be controlled by controlling the DC motor of the fan to adjust the wind speed of the fan body.
  • the fan body is controlled to operate at a first wind speed, and if the fan body is not in front, the fan body is controlled to operate at a second wind speed, wherein the second wind speed is less than the first wind speed.
  • the wind speed control method of the fan may include the following steps:
  • step S201 detecting whether there is a person in front of the fan body. If yes, step S202 is performed; if no, step S203 is performed.
  • the first wind speed may be a preset wind speed of the user.
  • the second wind speed is less than the first wind speed.
  • the second wind speed may be the lowest wind speed when the fan is running, or may be zero. That is to say, when there is no one in front of the fan main body, the rotation speed of the fan blades can be reduced, and even the rotation of the fan blades can be directly stopped.
  • the wind speed control method of the fan by detecting whether there is a person in front of the fan body, and adjusting the wind speed of the fan body according to the detection result, the wind speed of the fan can be flexibly adjusted according to the actual needs of the user.
  • the ability to use energy reasonably can improve the working efficiency of the fan and reduce the energy consumption of the fan, thereby improving the user experience.
  • the present invention also proposes a fan.
  • the fan of the embodiment of the present invention includes a fan body 10 and a base 20, a detecting module 30, and a control module 40.
  • the fan body 10 is swingably mounted on the base 20.
  • the detecting module 30 is configured to detect whether there is a person in front of the fan body, and the control module 40 is configured to adjust the wind speed of the fan body according to the detection result of the detecting module 30.
  • detection module 30 and control module 40 may be integrated into a processor of a fan, which may also include a memory to store processor-executable instructions.
  • the detection module 30 can include an infrared sensor.
  • the infrared sensor can be mounted on the fan body and located on the air outlet side of the fan body.
  • the detecting module 30 can determine whether the amount of infrared radiation received by the infrared sensor is greater than a preset threshold. When the amount of infrared radiation received by the infrared sensor is greater than a preset threshold, it can be determined that someone in front of the fan body can determine that there is no front of the fan body when the amount of infrared radiation received by the infrared sensor is less than or equal to a preset threshold. .
  • the fan may further include a DC motor and a fan blade, wherein the fan blade is located in the fan body 10, and the control module 40 controls the speed of the blade by controlling the DC motor to control the wind speed of the fan body 10. Make adjustments. Since the blades in the fan body 10 can be driven by a DC motor, the fan speed adjustment is more flexible.
  • control module 40 controls the fan body to operate at the first wind speed, and if the fan body is not in front, the control module 40 controls the fan body to operate at the second wind speed, wherein the second wind speed is less than The first wind speed.
  • the first wind speed may be a preset wind speed of the user
  • the second wind speed may be the lowest wind speed when the fan is running, or may be zero. That is to say, when there is no one in front of the fan main body 10, the rotation speed of the fan blades can be reduced, and even the rotation of the fan blades can be directly stopped.
  • the fan according to the embodiment of the present invention detects whether there is a person in front of the fan body through the detecting module, and adjusts the wind speed of the fan body according to the detection result by the control module, thereby flexibly adjusting the wind speed of the fan according to the actual needs of the user.
  • the ability to use energy reasonably can improve the working efficiency of the fan and reduce the energy consumption of the fan, thereby improving the user experience.
  • first and second are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated.
  • features defining “first” and “second” may include one or more of the features either explicitly or implicitly.
  • the meaning of “plurality” is two or more, Unless otherwise specifically defined.
  • the terms “installation”, “connected”, “connected”, “fixed” and the like shall be understood broadly, and may be either a fixed connection or a detachable connection, unless explicitly stated and defined otherwise. , or integrated; can be mechanical connection, or can be electrical connection; can be directly connected, or can be indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction of two elements.
  • installation can be understood on a case-by-case basis.
  • the first feature "on” or “under” the second feature may be a direct contact of the first and second features, or the first and second features may be indirectly through an intermediate medium, unless otherwise explicitly stated and defined. contact.
  • the first feature "above”, “above” and “above” the second feature may be that the first feature is directly above or above the second feature, or merely that the first feature level is higher than the second feature.
  • the first feature “below”, “below” and “below” the second feature may be that the first feature is directly below or obliquely below the second feature, or merely that the first feature level is less than the second feature.

Abstract

一种风扇及其风速控制方法,其中,风扇包括风扇主体(10)和底座(20),风扇主体(10)可摆动地安装在底座(20)上,所述方法包括以下步骤:检测风扇主体(10)的前方是否有人,根据检测结果对风扇主体(10)运行的风速进行调整。根据该方法,能够提高风扇的工作效率、降低风扇的能耗。

Description

风扇及其风速控制方法 技术领域
本发明涉及家用电器技术领域,特别涉及一种风扇的风速控制方法和一种风扇。
背景技术
风扇是一种常用的小型家电,风扇通常包括使空气发生流动的风扇主体和用于固定风扇主体的风扇底座,为了扩大空气的流动范围,通常,风扇主体可摆动的设置在风扇的底座上。这样,当风扇主体摆动时,能扩大风扇的作用面积,但是在风扇的作用面积范围内,大部分是无效的作用面积,白白浪费电能。
发明内容
本发明旨在至少在一定程度上解决上述技术中的技术问题之一。为此,本发明的一个目的在于提出一种风扇的风速控制方法,能够提高风扇的工作效率、降低风扇的能耗。
本发明的第二个目的在于提出一种风扇。
为达到上述目的,本发明第一方面实施例提出了一种风扇的风速控制方法,其中,所述风扇包括风扇主体和底座,所述风扇主体可摆动地安装在所述底座上,所述方法包括以下步骤:检测所述风扇主体的前方是否有人;根据检测结果对所述风扇主体运行的风速进行调整。
根据本发明实施例的风扇的风速控制方法,通过检测风扇主体的前方是否有人,并根据检测结果对风扇主体运行的风速进行调整,由此,可根据用户的实际需要灵活地调整风扇的风速,能够合理利用能源,即能够提高风扇的工作效率、降低风扇的能耗,从而提升了用户的体验度。
另外,根据本发明上述实施例提出的风扇的风速控制方法还可以具有如下附加的技术特征:
具体地,根据检测结果对所述风扇主体运行的风速进行调整,包括:如果所述风扇主体的前方有人,则控制所述风扇主体以第一风速运行;如果所述风扇主体的前方无人,则控制所述风扇主体以第二风速运行,其中,所述第二风速小于所述第一风速。
进一步地,通过控制所述风扇的直流电机对所述风扇主体中风叶的转速进行控制,以对所述风扇主体运行的风速进行调整。
根据本发明的一个实施例,通过红外传感器检测所述风扇主体的前方是否有人。
进一步地,通过红外传感器检测所述风扇主体的前方是否有人,包括:判断所述红外 传感器所接收到的红外辐射量是否大于预设阈值;如果所述红外传感器所接收到的红外辐射量大于所述预设阈值,则判定所述风扇主体的前方有人;如果所述红外传感器所接收到的红外辐射量小于或等于所述预设阈值,则判定所述风扇主体的前方无人。
为达到上述目的,本发明第二方面实施例提出了一种风扇,其包括:风扇主体和底座,其中,所述风扇主体可摆动地安装在所述底座上;检测模块,所述检测模块用于检测所述风扇主体的前方是否有人;控制模块,所述控制模块用于根据检测模块的检测结果对所述风扇主体运行的风速进行调整。
根据本发明实施例的风扇,通过检测模块检测风扇主体的前方是否有人,并通过控制模块根据检测结果对风扇主体运行的风速进行调整,由此,可根据用户的实际需要灵活地调整风扇的风速,能够合理利用能源,即能够提高风扇的工作效率、降低风扇的能耗,从而提升了用户的体验度。
另外,根据本发明上述实施例提出的风扇还可以具有如下附加的技术特征:
具体地,所述控制模块用于在所述风扇主体的前方有人时,控制所述风扇主体以第一风速运行,并在所述风扇主体的前方无人时,控制所述风扇主体以第二风速运行,其中,所述第二风速小于所述第一风速。
进一步地,所述风扇还包括直流电机和风叶,其中,所述风叶位于所述风扇主体中,所述控制模块通过控制所述直流电机对所述风叶的转速进行控制,以对所述风扇主体运行的风速进行调整。
根据本发明的一个实施例,所述检测模块包括红外传感器。
进一步地,所述检测模块用于判断所述红外传感器所接收到的红外辐射量是否大于预设阈值,在所述红外传感器所接收到的红外辐射量大于所述预设阈值时,判定所述风扇主体的前方有人,并在所述红外传感器所接收到的红外辐射量小于或等于所述预设阈值时,判定所述风扇主体的前方无人。
附图说明
图1为根据本发明实施例的风扇的风速控制方法的流程图;
图2为根据本发明一个具体实施例的风扇的风速控制方法的流程图;
图3为根据本发明实施例的风扇的方框示意图。
具体实施方式
下面详细描述本发明的实施例,所述实施例的示例在附图中示出,其中自始至终相同或类似的标号表示相同或类似的元件或具有相同或类似功能的元件。下面通过参考附图描 述的实施例是示例性的,旨在用于解释本发明,而不能理解为对本发明的限制。
下面结合附图来描述本发明实施例的风扇及其风速控制方法。
图1为根据本发明实施例的风扇的风速控制方法的流程图。
需要说明的是,本发明实施例的风扇,包括风扇主体和底座,风扇主体可摆动地安装在底座上。
如图1所示,本发明实施例的风扇的风速控制方法,包括以下步骤:
S1,检测风扇主体的前方是否有人。
在本发明的实施例中,风扇可在风扇主体摆动的过程中通过红外传感器检测风扇主体的前方是否有人。其中,红外传感器可安装在风扇主体上,并位于风扇主体的出风侧。
具体地,可判断红外传感器所接收到的红外辐射量是否大于预设阈值。如果红外传感器所接收到的红外辐射量大于预设阈值,则判定风扇主体的前方有人;如果红外传感器所接收到的红外辐射量小于或等于预设阈值,则判定风扇主体的前方无人。
S2,根据检测结果对风扇主体运行的风速进行调整。
在本发明的实施例中,风扇主体中的风叶可由直流电机驱动,因而风扇的风速调整较为灵活。可通过控制风扇的直流电机对风扇主体中风叶的转速进行控制,以对风扇主体运行的风速进行调整。
具体地,如果风扇主体的前方有人,则控制风扇主体以第一风速运行,如果风扇主体的前方无人,则控制风扇主体以第二风速运行,其中,第二风速小于第一风速。
在本发明的一个具体实施例中,如图2所示,风扇的风速控制方法可包括以下步骤:
S201,检测风扇主体的前方是否有人。如果是,则执行步骤S202;如果否,则执行步骤S203。
S202,控制风扇主体以第一风速运行。
其中,第一风速可为用户预先设定的风速。
S203,控制风扇主体以第二风速运行。
其中,第二风速小于第一风速。在本发明的一个具体实施例中,第二风速可为风扇运行时的最低风速,也可为零。也就是说,在风扇主体的前方无人时,可降低风扇风叶的转速,甚至直接关停风扇风叶的转动。
根据本发明实施例的风扇的风速控制方法,通过检测风扇主体的前方是否有人,并根据检测结果对风扇主体运行的风速进行调整,由此,可根据用户的实际需要灵活地调整风扇的风速,能够合理利用能源,即能够提高风扇的工作效率、降低风扇的能耗,从而提升了用户的体验度。
为实现上述实施例的风扇的风速控制方法,本发明还提出一种风扇。
如图3所示,本发明实施例的风扇,包括:风扇主体10和底座20、检测模块30以及控制模块40。
其中,风扇主体10可摆动地安装在底座20上。检测模块30用于检测风扇主体的前方是否有人,控制模块40用于根据检测模块30的检测结果对风扇主体运行的风速进行调整。
在本发明的实施例中,检测模块30和控制模块40可集成在风扇的处理器中,风扇还可包括存储器以存储处理器可执行指令。
在本发明的一个实施例中,检测模块30可包括红外传感器。其中,红外传感器可安装在风扇主体上,并位于风扇主体的出风侧。
具体地,检测模块30可判断红外传感器所接收到的红外辐射量是否大于预设阈值。在红外传感器所接收到的红外辐射量大于预设阈值时,可判定风扇主体的前方有人,在红外传感器所接收到的红外辐射量小于或等于预设阈值时,可判定风扇主体的前方无人。
在本发明的实施例中,风扇还可包括直流电机和风叶,其中,风叶位于风扇主体10中,控制模块40通过控制直流电机对风叶的转速进行控制,以对风扇主体10运行的风速进行调整。由于风扇主体10中的风叶可由直流电机驱动,风扇的风速调整较为灵活。
具体地,如果风扇主体的前方有人,则控制模块40控制风扇主体以第一风速运行,如果风扇主体的前方无人,则控制模块40控制风扇主体以第二风速运行,其中,第二风速小于第一风速。
在本发明的一个具体实施例中,第一风速可为用户预先设定的风速,第二风速可为风扇运行时的最低风速,也可为零。也就是说,在风扇主体10的前方无人时,可降低风扇风叶的转速,甚至直接关停风扇风叶的转动。
根据本发明实施例的风扇,通过检测模块检测风扇主体的前方是否有人,并通过控制模块根据检测结果对风扇主体运行的风速进行调整,由此,可根据用户的实际需要灵活地调整风扇的风速,能够合理利用能源,即能够提高风扇的工作效率、降低风扇的能耗,从而提升了用户的体验度。
在本发明的描述中,需要理解的是,术语“中心”、“纵向”、“横向”、“长度”、“宽度”、“厚度”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”、“内”、“外”、“顺时针”、“逆时针”、“轴向”、“径向”、“周向”等指示的方位或位置关系为基于附图所示的方位或位置关系,仅是为了便于描述本发明和简化描述,而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作,因此不能理解为对本发明的限制。
此外,术语“第一”、“第二”仅用于描述目的,而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此,限定有“第一”、“第二”的特征可以明示或者隐含地包括一个或者更多个该特征。在本发明的描述中,“多个”的含义是两个或两个以上, 除非另有明确具体的限定。
在本发明中,除非另有明确的规定和限定,术语“安装”、“相连”、“连接”、“固定”等术语应做广义理解,例如,可以是固定连接,也可以是可拆卸连接,或成一体;可以是机械连接,也可以是电连接;可以是直接相连,也可以通过中间媒介间接相连,可以是两个元件内部的连通或两个元件的相互作用关系。对于本领域的普通技术人员而言,可以根据具体情况理解上述术语在本发明中的具体含义。
在本发明中,除非另有明确的规定和限定,第一特征在第二特征“上”或“下”可以是第一和第二特征直接接触,或第一和第二特征通过中间媒介间接接触。而且,第一特征在第二特征“之上”、“上方”和“上面”可是第一特征在第二特征正上方或斜上方,或仅仅表示第一特征水平高度高于第二特征。第一特征在第二特征“之下”、“下方”和“下面”可以是第一特征在第二特征正下方或斜下方,或仅仅表示第一特征水平高度小于第二特征。
在本说明书的描述中,参考术语“一个实施例”、“一些实施例”、“示例”、“具体示例”、或“一些示例”等的描述意指结合该实施例或示例描述的具体特征、结构、材料或者特点包含于本发明的至少一个实施例或示例中。在本说明书中,对上述术语的示意性表述不必须针对的是相同的实施例或示例。而且,描述的具体特征、结构、材料或者特点可以在任一个或多个实施例或示例中以合适的方式结合。此外,在不相互矛盾的情况下,本领域的技术人员可以将本说明书中描述的不同实施例或示例以及不同实施例或示例的特征进行结合和组合。
尽管上面已经示出和描述了本发明的实施例,可以理解的是,上述实施例是示例性的,不能理解为对本发明的限制,本领域的普通技术人员在本发明的范围内可以对上述实施例进行变化、修改、替换和变型。

Claims (10)

  1. 一种风扇的风速控制方法,其特征在于,所述风扇包括风扇主体和底座,所述风扇主体可摆动地安装在所述底座上,所述方法包括以下步骤:
    检测所述风扇主体的前方是否有人;
    根据检测结果对所述风扇主体运行的风速进行调整。
  2. 根据权利要求1所述的风扇的风速控制方法,其特征在于,根据检测结果对所述风扇主体运行的风速进行调整,包括:
    如果所述风扇主体的前方有人,则控制所述风扇主体以第一风速运行;
    如果所述风扇主体的前方无人,则控制所述风扇主体以第二风速运行,其中,所述第二风速小于所述第一风速。
  3. 根据权利要求1或2所述的风扇的风速控制方法,其特征在于,通过控制所述风扇的直流电机对所述风扇主体中风叶的转速进行控制,以对所述风扇主体运行的风速进行调整。
  4. 根据权利要求1-3中任一项所述的风扇的风速控制方法,其特征在于,通过红外传感器检测所述风扇主体的前方是否有人。
  5. 根据权利要求4所述的风扇的风速控制方法,其特征在于,通过红外传感器检测所述风扇主体的前方是否有人,包括:
    判断所述红外传感器所接收到的红外辐射量是否大于预设阈值;
    如果所述红外传感器所接收到的红外辐射量大于所述预设阈值,则判定所述风扇主体的前方有人;
    如果所述红外传感器所接收到的红外辐射量小于或等于所述预设阈值,则判定所述风扇主体的前方无人。
  6. 一种风扇,其特征在于,包括:
    风扇主体和底座,其中,所述风扇主体可摆动地安装在所述底座上;
    检测模块,所述检测模块用于检测所述风扇主体的前方是否有人;
    控制模块,所述控制模块用于根据检测模块的检测结果对所述风扇主体运行的风速进行调整。
  7. 根据权利要求6所述的风扇,其特征在于,所述控制模块用于在所述风扇主体的前方有人时,控制所述风扇主体以第一风速运行,并在所述风扇主体的前方无人时,控制所述风扇主体以第二风速运行,其中,所述第二风速小于所述第一风速。
  8. 根据权利要求6或7所述的风扇,其特征在于,还包括直流电机和风叶,其中,所 述风叶位于所述风扇主体中,所述控制模块通过控制所述直流电机对所述风叶的转速进行控制,以对所述风扇主体运行的风速进行调整。
  9. 根据权利要求6-8中任一项所述的风扇,其特征在于,所述检测模块包括红外传感器。
  10. 根据权利要求9所述的风扇,其特征在于,所述检测模块用于判断所述红外传感器所接收到的红外辐射量是否大于预设阈值,在所述红外传感器所接收到的红外辐射量大于所述预设阈值时,判定所述风扇主体的前方有人,并在所述红外传感器所接收到的红外辐射量小于或等于所述预设阈值时,判定所述风扇主体的前方无人。
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