CN102734193B - Fan control system and method and fan with system - Google Patents

Abstract

A fan comprises a fan blade, a shell, a first actuating device for driving the fan blade, a second actuating device for changing the direction of the fan and a control system. The control system comprises a camera device, a human shape detection module and a position processing module. The camera device is mounted on the housing and is used for shooting an image of a scene in front of the fan. The human shape detection module is used for detecting the image obtained by the camera device so as to judge whether a human body exists in the image. The position processing module is used for judging the position of the human body in the image when the human body exists in the image, and correspondingly sending a position signal to the second actuating device, so that the second actuating device changes the wind direction of the fan to the position of the human body. The fan can change the wind direction according to the position of a user. The invention also provides a fan control system and a fan control method.

Description

Fan control system, method and fan with same

technical field

The invention relates to a fan control system and method, and also relates to a fan with the system.

Background technique

The emergence of smart home appliances has brought more services and convenience to people's lives, but users are still troubled by many problems in the process of using smart fans. For example, the current smart fans are all fixedly installed or placed in one position. When the user walks around, the fan cannot follow the user to rotate, which affects the user's convenient enjoyment of blowing at home at any time. Although the swinging head can be used to realize multi-directional blowing, it still cannot prevent the user from enjoying the blowing all the time.

Contents of the invention

In view of the above, it is necessary to provide a fan that can automatically adjust the wind direction according to the location of the user and its control system and method.

A fan includes a fan blade, a casing, a first actuating device for driving the fan blade, a second actuating device for changing the direction of the fan, and a control system, the control system including:

A camera device, installed on the housing, is used to take images of the scene in front of the fan;

A human figure detection module, which is used to detect the image obtained by the camera device to determine whether there is a human body in the image; and

A position processing module, used to determine the position of the human body in the image when there is a human body in the image, and correspondingly send a position signal to the second actuating device, so that the second actuating device changes the wind direction of the fan to the position of the human body.

A fan control system is used to adjust the wind direction of the fan, the fan control system includes:

A camera device for taking images of the scene in front of the fan;

A human figure detection module, which is used to detect the image obtained by the camera device to determine whether there is a human body in the image; and

A position processing module is used to determine the position of the human body in the image when there is a human body in the image, and correspondingly send a position signal to the actuating device of the fan to change the wind direction of the fan to the position of the human body.

A fan control method for adjusting the wind direction of the fan, the fan control method comprising:

Shooting step: take an image of the scene in front of the fan through a camera device;

Detection step: detecting the image obtained by the camera device to determine whether there is a human body in the image; and

Position determination and control step: When there is a human body in the image, determine the position of the human body in the image, and correspondingly send a position signal to the actuating device of the fan to change the wind direction of the fan.

The above-mentioned fan obtains the position information of the user through its control system, and correspondingly controls the movement of the second actuating device according to the position information, so that the wind direction of the fan can continue to face the user.

Description of drawings

Fig. 1 is a schematic diagram of a preferred embodiment of the fan of the present invention.

Fig. 2 is a block diagram of the fan in Fig. 1 .

3 and 4 are schematic diagrams of the operation of the fan in FIG. 1 .

Fig. 5 is a flowchart of a preferred embodiment of the fan control method of the present invention.

Description of main component symbols

fan 1 fan blade 10 shell 12 first actuator 15 second actuator 18 Control System 19 camera device 190 Humanoid Storage Module 191 Humanoid Detection Module 192 location processing module 195

The following specific embodiments will further illustrate the present invention in conjunction with the above-mentioned drawings.

Detailed ways

Below in conjunction with accompanying drawing and preferred embodiment the present invention is described in further detail:

Please refer to FIG. 1 and FIG. 2, a preferred embodiment of the fan 1 of the present invention includes a fan blade 10, a casing 12, a first actuating device 15, a second actuating device 18 and a control system 19, wherein the The fan blade 10, the casing 12, the first actuating device 15 and the second actuating device 18 are consistent with the existing fans, the first actuating device 15 is used to rotate the fan blade 10, and the second actuating device 18 is used for To adjust the wind direction of the fan 1, that is, to make the fan "swing".

The control system 19 includes a camera device 190 , a human shape storage module 191 , a human shape detection module 192 and a position processing module 195 . The camera device 190 is installed on the casing 12 and swings together with the fan, and is used to always capture images of the scene directly in front of the wind direction of the fan. The human-shaped storage module 191, the human-shaped detection module 192 and the position processing module 195 can be software modules executed by a processor, wherein a number of different human body models are stored in the human-shaped storage module 191, and these human body models can be detected by the camera device in advance. 190 is obtained by photographing and processing the crowd.

The human figure detection module 192 is used for receiving the image captured by the camera device 190 and detecting it to determine whether there is a human body in the image. In this embodiment, the human figure detection module 192 can compare the obtained image with several different human figure models stored in the human figure storage module 191 to determine whether there is a human body in the image. If there is one identical part in different humanoid models, it is considered that there is a human body in the image; if there is no identical part in the image with any one of several different humanoid models, it is considered that there is no human body in the image. Certainly, in other implementation manners, the human figure detection module 192 may also use other known algorithms to determine whether there is a human body in the image.

The position processing module 195 is used for judging the current position of the human body when there is a human body in the image, and sending a corresponding position signal according to the obtained position information. The second actuating device 18 is connected with the control system 19 for receiving a position signal from the control system 19, and controlling the second actuating device 18 according to the position signal to adjust the wind direction of the fan to the position where the person is.

The working principle between the second actuating device 18 and the control system 19 will be described below with an example:

Here, the fan is hung on the ceiling as an example. When the fan is turned on, the control system 19 starts to work, and the camera device 190 starts to capture images in front of the camera device 190 . As shown in FIG. 3 , the human-shaped detection module 192 detects and judges that there is a human body in the image at this time, and marks the human-shaped area with a box.

The position processing module 195 operates on the image to obtain the center point position of the human body, that is, the center point position of the box, and identifies the center point of the box as the first center point A. The position processing module 195 also operates on the image of the scene captured by the camera 190 to obtain the center point position of the image, and identifies the center point position of the image as the second center point B.

The position processing module 195 compares the position relationship between the first central point A and the second central point B, and outputs a corresponding position signal to control the second actuator 18 so that the fan changes its wind direction. For example, as shown in FIG. 3 , the first central point A is located at the lower right of the second central point B, so the position processing module 195 outputs a corresponding position signal so that the second actuator 18 moves to the lower right. .

Obviously, when the fan changes its wind direction, the camera device 190 also changes its shooting direction accordingly. In this way, when the second actuating device 18 moves downward to the right, the positions of the first center point A and the second center point B in the image captured by the camera device 190 will be closer and closer.

As shown in FIG. 4 , when the first central point A coincides with the second central point B in the image captured by the camera 190 , the second actuating device 18 stops moving, and at this moment, the wind direction of the fan is facing the user. Afterwards, if the user moves in the room, the control system 19 will repeat the above process.

In addition, if there are several human bodies in the image captured by the camera device 190, the position processing module 195 can use the central points of several human bodies as the first central point, so that after the movement of the second actuating device 18, the wind direction of the fan will be Towards the center of several people.

Referring to Figure 5, a preferred implementation of the fan control method of the present invention includes the following steps:

Step S1: The camera 190 takes pictures of the scene in front of it to obtain an image of the scene.

Step S2: The human figure detection module 192 detects the image to determine whether there is a human body in the image. If no human body appears in the image, return to step S1. If there is a human body in the image, step S3 is executed.

Step S3: The position processing module 195 performs operations on the image to know the position of the human body at this time, and sends a corresponding position signal. In this embodiment, the position processing module 195 determines the positional relationship between the center point of the human body in the image and the center point of the image to confirm the position of the human body at this time.

Step S4: The second actuating device 18 moves according to the position signal sent by the position processing module 195 to change the wind direction of the fan to the position where the human body is located.

The above-mentioned fan obtains the position information of the user through its control system 19, and correspondingly controls the movement of the second actuating device 18 according to the position information, so that the wind direction of the fan can continue to face the user.

Claims (8)

1. a fan, comprise a flabellum, a shell, drives first actuator and of flabellum for changing the second actuator of fan directional, it is characterized in that: described fan also comprises a control system, this control system comprises:

One imaging means, is installed on this shell, for taking the image of the scene in fan front;

One humanoid detecting module, detects for the image obtained imaging means, to judge whether there is human body in image; And

One position puocessing module, during for there is human body in the picture, computing is carried out with the central point of the central point and this image that obtain this human body to this image, and the central point of this human body of Will is designated first nodal point, the central point of this image is designated the second central point, this position puocessing module is also for comparing the position relationship between this first nodal point and this second central point, and send corresponding position signal to this second actuator, with the wind direction making the second actuator change this fan, thus make this imaging means along with this fan change shooting direction, and then make this first nodal point gradually near this second central point, when this first nodal point and this second point coincides, this the second actuator stop motion, the wind direction of this fan is just to this human body.

2. fan as claimed in claim 1, it is characterized in that: this control system also comprises a humanoid memory module, some different humanoid models are stored in this humanoid memory module, this humanoid detecting module is by comparing the image obtained from the some different humanoid model be stored in humanoid memory module, to judge whether occur human body in this image.

3. fan as claimed in claim 1, it is characterized in that: if when there is some human bodies in image, this first nodal point is the central point of some human bodies in image.

4. a fan control system, for adjusting the wind direction of fan, this fan control system comprises:

One is installed on the imaging means on this fan drum, for taking the image of the scene in the front of this fan;

One humanoid detecting module, detects for the image obtained imaging means, to judge whether there is human body in image; And

One position puocessing module, during for there is human body in the picture, computing is carried out with the central point of the central point and this image that obtain this human body to this image, and the central point of this human body of Will is designated first nodal point, the central point of this image is designated the second central point, this position puocessing module is also for comparing the position relationship between this first nodal point and this second central point, and send the actuator of corresponding position signal to fan, to change the wind direction of this fan, thus make this imaging means along with this fan change shooting direction, and then make this first nodal point gradually near this second central point, when this first nodal point and this second point coincides, this actuator stop motion, the wind direction of this fan is just to this human body.

5. fan control system as claimed in claim 4, it is characterized in that: described fan control system also comprises a humanoid memory module, some different humanoid models are stored in this humanoid memory module, this humanoid detecting module is by comparing the image obtained from the some different humanoid model be stored in humanoid memory module, to judge whether occur human body in this image.

6. fan control system as claimed in claim 4, it is characterized in that: if when there is some human bodies in image, this first nodal point is the central point of some human bodies in image.

7. a control method for fan, for adjusting the wind direction of fan, this control method for fan comprises:

Shooting step: the image being taken the scene in the front of this fan by an imaging means be installed on this fan drum;

Detecting step: the image that imaging means obtains is detected, to judge whether there is human body in image; And

Position judgment and rate-determining steps: when there is human body in image, computing is carried out with the central point of the central point and this image that obtain this human body to this image, and the central point of this human body of Will is designated first nodal point, the central point of this image is designated the second central point, and the position relationship compared between this first nodal point and this second central point, also send the actuator of corresponding position signal to fan, to change the wind direction of this fan, thus make this imaging means along with this fan change shooting direction, and then make this first nodal point gradually near this second central point, when this first nodal point and this second point coincides, this actuator stop motion, the wind direction of this fan is just to this human body.

8. control method for fan as claimed in claim 7, is characterized in that: this detecting step comprises:

By the image obtained in shooting step is compared from the some different humanoid model of storage, to judge whether occur human body in this image.