Intelligent fan

Abstract

The embodiment of the utility model provides an intelligent fan. The intelligent fan comprises a fan body; a first signal receiving unit; a second signal receiving unit; a processor; the first signal receiving unit and the second signal receiving unit are respectively connected with the processor; the first signal receiving unit and the second signal receiving unit are used for receiving control signals transmitted by a remote controller; the fan body is connected with the processor; the processor is used for adjusting the air supply direction of the intelligent fan according to user position information obtained through calculation according to the control signals received by the first signal receiving unit and the second signal receiving unit. According to the technical scheme provided by the embodiment of the invention, the convenience of using the intelligent fan by a user can be improved to a certain extent.

Description

Technical Field

[0001] The embodiments of this specification relate to the technical field of smart home appliances, and specifically to a smart fan. Background Art

[0002] In the prior art, when a user uses a fan alone, there are two expected usage models, one is that the fan points to himself, and the other is that the fan includes the user's position during its swinging process. In these two expected models, the user needs to move the fan and wait for the fan to swing to a suitable position; when multiple users use the fan, the user expects the fan's swing range to include all users, and the users are also required to adjust the fan according to their respective positions and wait for a suitable swing range. The adjustment speed is slow and the adjustment is troublesome. Summary of the invention

[0003] In view of this, multiple implementations of this specification are dedicated to providing a smart fan to improve the convenience of users using the smart fan to a certain extent.

[0004] The implementation mode of this specification proposes a smart fan, which includes: a fan body; a first signal receiving unit; a second signal receiving unit; a processor; the first signal receiving unit and the second signal receiving unit are respectively connected to the processor; the first signal receiving unit and the second signal receiving unit are used to receive control signals transmitted by a remote control; the fan body is connected to the processor; the processor is used to adjust the air supply direction of the smart fan based on user position information calculated according to the control signals received by the first signal receiving unit and the second signal receiving unit.

[0005] The implementation method of this specification is that the user uses a remote control to turn on the fan and sends a position signal at the same time, and then the first signal receiver and the second signal receiver of the smart fan respectively receive the position signal, and determine the relative angle between the remote control and the smart fan according to the time difference between the first signal receiver and the second signal receiver when receiving the position signal, that is, the relative angle between the person and the smart fan, and finally adjust the air supply direction of the smart fan according to the relative angle, so as to realize automatic control of the air supply direction of the smart fan without the user manually adjusting the wind direction of the fan, thereby improving the convenience and comfort of the user in using the fan to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0006] Figure 1 Shown is a schematic structural diagram of a smart fan provided in one embodiment.

[0007] Figure 2 Shown is a schematic structural diagram of a smart fan provided in another embodiment.

[0008] Description of reference numerals:

[0009] 10. Fan body; 20. First signal receiving unit; 21. Second signal receiving unit; 30. Processor; 40. Bluetooth module. DETAILED DESCRIPTION

[0010] In order to enable those skilled in the art to better understand the solution of this specification, the technical solution in the implementation of this specification will be clearly and completely described below in conjunction with the drawings in the implementation of this specification. Obviously, the described implementation is only a part of the implementation of this specification, not all of the implementations. Based on the implementation in this specification, all other implementations obtained by ordinary technicians in this field without creative work are within the scope of protection of this specification.

[0011] In the prior art, when a user uses a fan alone, there are two expected usage models, one is that the fan points to himself, and the other is that the user's position is included in the fan's swing process. In both expected models, the user needs to move the fan. For the first method, the user needs to walk to the fan's position and control the fan to start swinging. When the fan swings to the appropriate position, the fan is controlled to stop swinging and returns to the original position. If it is not adjusted well, it is necessary to stand up again to adjust it. For the second method, the user may be in a blind spot of air supply during the swinging process of the fan, so the user also needs to stand up to adjust it, which makes the process of adjusting the wind direction of the fan more troublesome and affects the user's experience.

[0012] Therefore, the embodiments of the present specification provide a smart fan, thereby avoiding the need for the user to move to the location of the fan to manually adjust the wind direction of the fan, thereby improving the convenience of the user in using the smart fan to a certain extent.

[0013] See also Figure 1 , the embodiment of this specification provides a smart fan, the smart fan includes: a fan body 10; a first signal receiving unit 20; a second signal receiving unit 21; a processor 30;

[0014] The first signal receiving unit 20 and the second signal receiving unit 21 are connected to the processor 30 respectively; the first signal receiving unit 20 and the second signal receiving unit 21 are used to receive the control signal transmitted by the remote controller;

[0015] The fan body 10 is connected to the processor 30; the processor 30 is used to adjust the air supply direction of the smart fan according to the user position information calculated based on the control signals received by the first signal receiving unit 20 and the second signal receiving unit 21.

[0016] In some cases, the user needs to manually adjust the angle of the fan when using the fan, and then return to his position to make the fan blow towards him. If the wind blows in the wrong position, he needs to readjust it, which makes it very troublesome for the user to adjust the wind direction of the fan, affecting the user experience. Therefore, a signal receiver can be used to receive the signal sent by the user, and measure the relative angle of the signal sending position (that is, the user's position) relative to the fan, and adjust the wind direction of the fan based on this, so that the entire wind direction adjustment process can be automatically adjusted, which improves the convenience of users using the smart fan to a certain extent.

[0017] In this embodiment, the first signal receiving unit 20 and the second signal receiving unit 21 can be receivers of the same type and model. The type of the signal receiving unit can be a radio frequency identification module, an ultrasonic receiving module, a WiFi receiving module, an infrared receiving module, etc. Among them, RFID (radio frequency identification) uses wireless radio frequency signals to identify and track objects, and can measure the distance between the device and the reader. Ultrasonic wave: by sending and receiving ultrasonic signals, the time for the sound wave to propagate is measured to calculate the distance between the devices. The laser rangefinder uses a laser beam transmitter to send laser pulses and measures the time required for the laser pulse to return to calculate the distance between the devices. The Wi-Fi / Bluetooth signal strength indication (RSSI) uses the strength of the wireless local area network (Wi-Fi) or Bluetooth signal to estimate the distance between devices. Infrared uses an infrared sensor to measure the strength or time of the infrared signal to calculate the distance between devices. The specific category and form of expression of the signal receiver are not limited in the embodiments of this specification. As long as the signal transceiver device that can achieve distance measurement can belong to the scope of protection of the embodiments of this specification.

[0018] In this embodiment, the position signal is a position signal transmitted by the remote control to the outside of the space. The signal transmitting device provided in the remote control is provided corresponding to the signal receiver of the smart fan. Specifically, for example, the signal receiver in the smart fan may be an infrared receiver, and the remote control needs to be correspondingly provided as an infrared transmitter. The remote control may be a separate handheld remote control or a mobile terminal having a signal transmitter corresponding to the signal receiver. Specifically, for example, in the case where the signal receiver in the smart fan may be an infrared receiver, smart devices having infrared transmitting functions such as smart watches, mobile phones, and pads may be connected to the smart fan and control it accordingly.

[0019] In this embodiment, for the same position signal, and for the same type of signal receivers, the interference of hardware on the duration is reduced, and the relative angle of the remote control with respect to the smart fan is obtained according to the time difference between the first signal receiver and the second signal receiver in receiving the position signal, and according to the transmission speed of the signal in the air. In this embodiment, since the distance between the first signal receiver and the second signal receiver arranged in the electric fan is small, and the distance between the remote control and the smart device is far, the position signal directly reaching the first signal receiver and the second signal receiver can be regarded as a parallel line. Therefore, the signal correlation algorithm can be used to determine the delay time difference t of the position signal directly reaching the first signal receiver and the second signal receiver, and d can be calculated based on the delay time difference t, where d = t*c, c is the propagation speed of the position signal in the medium (such as air); θ is the auxiliary angle, where Therefore, the relative angle between the remote control and the smart fan can be calculated in,

[0020] In this embodiment, after obtaining the relative angle, it is necessary to align the air supply direction of the fan with the user's position so that the user can directly feel the cool air blown by the fan. When the user uses the remote control to control the fan for directional air supply, the air supply direction of the smart fan can be facing the position of the remote control, that is, the user's position. When the user converts the directional air supply mode to the swinging air supply, the smart fan can provide the following three modes according to the user's settings: the first is to swing left and right α° with the user as the center, the second is to swing to the left β° with the user as the right boundary, and the third is to swing to the right γ° with the user as the left boundary. When the user is the air supply boundary, the actual swing limit is offset to the user side by δ°, taking 0-10°. The sight lines of the above three modes are realized by the function button control of the remote control / smart device. The parameters α, β, γ, and δ can be connected to the fan through the smart device to enter the fan control app to adjust.

[0021] In some embodiments, the first signal receiving unit 20 and the second signal receiving unit 21 are disposed symmetrically to the fan body 10 .

[0022] In this embodiment, by arranging two signal receivers symmetrically to the central axis of the fan, it is convenient to calculate the angle of the user relative to the smart fan, so as to timely control the smart fan to rotate to the corresponding angle to supply air.

[0023] In some embodiments, both the first signal receiving unit 20 and the second signal receiving unit 21 are ultrasound receiving units.

[0024] In this embodiment, when an ultrasonic receiving unit is used as a signal receiving unit, ultrasonic waves can achieve non-contact detection and ranging without physical contact with the measured object, thereby avoiding damage or interference to the measured object. Ultrasonic sensors can achieve high-precision measurements, and their short wavelength and high frequency can provide accurate ranging and detection results. Ultrasonic sensors are highly sensitive to parameters such as distance and speed, can detect small changes, and have a fast response speed.

[0025] In some embodiments, the ultrasound receiving unit is a microphone.

[0026] In this embodiment, a microphone is a device that converts sound into electrical signals. It can receive sound waves propagating from the environment and convert them into electrical signals. Ultrasonic signals refer to sound waves with frequencies above the human hearing range (20Hz to 20kHz). The microphone can receive these ultrasonic signals and convert them into electrical signals corresponding to the sound waves. These electrical signals can then be connected to other devices or systems for further processing or analysis.

[0027] In this embodiment, when the signal receiver is used to receive ultrasonic signals, the corresponding remote control has an ultrasonic transmitting module which may be a piezoelectric ultrasonic transmitter, a magnetostrictive ultrasonic transmitter, an electromagnetic ultrasonic transmitter, a pneumatic ultrasonic transmitter, a speaker, etc. The embodiment of this specification does not limit the specific form of the ultrasonic transmitting unit. When the remote control is a smart device, its ultrasonic transmitting module may be a speaker that comes with the smart device itself, which usually has a high-frequency response capability and can operate in a frequency range of tens of kilohertz to several megahertz. By inputting the ultrasonic signal into the ultrasonic speaker, it converts the signal into ultrasonic waves and transmits it. There is no need to add other signal transmitting modules separately.

[0028] In some embodiments, the remote controller is a mobile terminal.

[0029] In this embodiment, when the mobile terminal has a signal transmitter corresponding to the signal receiver of the smart fan, it can be used as a remote controller of the smart fan. Thus, there is no need to equip the smart fan with additional components such as a remote controller, thereby saving costs. Moreover, when multiple users need to use the smart fan, the wind direction of the smart fan can also be controlled by their own mobile terminal. Therefore, when multiple mobile terminals need to adjust the wind direction, the relative angle of each mobile terminal relative to the smart fan can be calculated separately, and then the smart fan can be controlled to swing within the range of each relative angle. Specifically, for example, three users use mobile terminals to control the smart fan. At this time, the smart fan calculates that the relative angles of the three mobile terminals relative to the smart fan are 45°, 67° and 108° respectively, so the smart fan can be controlled to swing within the range of 45° to 108°. Of course, considering the user's boundaries, the wind direction can also be offset to the left and right by a certain angle, for example, the left and right are offset by 8°, then the smart fan is controlled to swing within the range of 37° to 126°, so that the air supply direction of the smart fan can cover the user's whole body as much as possible.

[0030] See also Figure 2 In some embodiments, the smart fan further includes a Bluetooth module 40; the Bluetooth module 40 is used to broadcast Bluetooth signals.

[0031] In this embodiment, if the fan is to actively interact with the smart device, when the smart fan is started, the Bluetooth module 40 it carries can actively perform Bluetooth broadcasting. After receiving the Bluetooth broadcast, the smart device pops up the fan control interface. If the user accepts to use the fan, the transmitter of the smart device will be stimulated to send a position signal. The fan can then know whether there is a smart device and whether the user holding the smart device wants to use the fan.

[0032] The descriptions of the various embodiments of this specification are made in a progressive manner. Different embodiments focus on describing the parts that are different from other embodiments. After reading this specification, a person skilled in the art can know that the various embodiments in this specification, as well as the various technical features disclosed in the embodiments, can be combined in more ways. To make the description concise, not all possible combinations of the various technical features in the embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0033] It should also be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, commodity or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, commodity or device. In the absence of more restrictions, the elements defined by the sentence "comprises a ..." do not exclude the existence of other identical elements in the process, method, commodity or device including the elements.

[0034] The multiple embodiments in this specification emphasize the parts that are different from other embodiments, and the various embodiments can be explained in comparison with each other. Any combination of the multiple embodiments in this specification by technicians in the relevant field based on general technical knowledge is included in the disclosure scope of this specification.

[0035] The above description is only an implementation method of this case and is not intended to limit the scope of protection of the claims of this case. For those skilled in the art, this case may have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of this case should be included in the scope of the claims of this case.

Claims

1. A smart fan, characterized in that: The intelligent fan comprises: a fan body (10); a first signal receiving unit (20); a second signal receiving unit (21); and a processor (30); The first signal receiving unit (20) and the second signal receiving unit (21) are respectively connected to the processor (30); the first signal receiving unit (20) and the second signal receiving unit (21) are used to receive a position signal transmitted by a remote controller; wherein the first signal receiving unit (20) and the second signal receiving unit (21) are both ultrasonic receiving units; The fan body (10) is connected to the processor (30); the processor (30) is used to adjust the air supply direction of the intelligent fan according to the user position information calculated based on the position signals received by the first signal receiving unit (20) and the second signal receiving unit (21); wherein the position information is determined by the processor (30) according to the time difference between the first signal receiving unit (20) and the second signal receiving unit (21) receiving the position signal transmitted by the remote control.

2. The intelligent fan according to claim 1, characterized in that: The first signal receiving unit (20) and the second signal receiving unit (21) are arranged symmetrically with respect to the fan body (10).

3. The intelligent fan according to claim 1, characterized in that: The ultrasonic receiving unit is a microphone.

4. The intelligent fan according to claim 1, characterized in that: The transmitter model of the remote controller matches the first signal receiving unit (20) and the second signal receiving unit (21).

5. The intelligent fan according to claim 4, characterized in that: The remote controller is a mobile terminal.

6. The intelligent fan according to claim 1, characterized in that: The smart fan further comprises a Bluetooth module (40); the Bluetooth module (40) is used for broadcasting Bluetooth signals.

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