CN114087225A - Fan air supply control method and system - Google Patents
Fan air supply control method and system Download PDFInfo
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- CN114087225A CN114087225A CN202111445000.9A CN202111445000A CN114087225A CN 114087225 A CN114087225 A CN 114087225A CN 202111445000 A CN202111445000 A CN 202111445000A CN 114087225 A CN114087225 A CN 114087225A
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- air supply
- fan
- area
- skin
- blowing
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- 238000000034 method Methods 0.000 title claims abstract description 22
- 238000007664 blowing Methods 0.000 claims abstract description 29
- 230000000007 visual effect Effects 0.000 claims abstract description 16
- 238000005516 engineering process Methods 0.000 claims abstract description 8
- 238000010586 diagram Methods 0.000 description 4
- 238000004458 analytical method Methods 0.000 description 2
- 238000013473 artificial intelligence Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000007958 sleep Effects 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
- F04D25/10—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation the unit having provisions for automatically changing direction of output air
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Positive-Displacement Air Blowers (AREA)
Abstract
The invention discloses a fan air supply control method and a system, wherein the method comprises the following steps: (1) taking a fan as a visual observation point, and acquiring a view of an air supply area of the fan; (2) identifying and locating an exposed area of skin of the human body in the view by visual recognition techniques; (3) and controlling the fan to avoid the skin exposure area for air supply. The invention adopts the human body limb recognition technology, and plans the air supply circuit by recognizing and positioning the skin exposure area of the human body in the user scene, so that the air supply is carried out by avoiding the skin exposure part of the human body in the air supply process, the air supply is ensured to be carried out to the maximum extent, and the direct skin blowing is avoided, thereby being very suitable for the user to use when sleeping.
Description
Technical Field
The invention belongs to the technical field of household appliances and intelligent control, and particularly relates to a fan air supply control method and system.
Background
With the introduction of artificial intelligence concepts, visual recognition technology is rapidly developed, technologies such as camera face recognition, human figure recognition, gesture limb recognition and the like are mature day by day, and the specific positions of the limbs of a human body can be accurately recognized by the technologies, so that accurate basis is provided for intelligent control.
In the prior art, an intelligent fan senses the position of a human body by using an infrared human body detection mode, but cannot accurately detect whether the limb part of the human body is worn by clothes, covered by bedding or directly exposed in the air, so that the prior art can only plan an air supply strategy for the position of the whole human body, and cannot specifically reach a certain part of the human body.
Disclosure of Invention
The invention provides a fan air supply control method and system, wherein a fan accurately avoids the skin of a user to supply air. The invention is realized by the following technical scheme:
a fan air supply control method comprises the following steps:
(1) taking a fan as a visual observation point, and acquiring a view of an air supply area of the fan;
(2) identifying and locating an exposed area of skin of the human body in the view by visual recognition techniques;
(3) and controlling the fan to avoid the skin exposure area for air supply.
Preferably, before the step (1), an air supply mode selection step is further included, the air supply mode includes a skin-avoiding air supply mode, and the step (1) is entered when the skin-avoiding air supply mode is selected.
Preferably, the air supply area is: the left-right swing amplitude and the up-down swing amplitude of the air supply device of the fan are used as visual angles, and the air supply area is covered.
Preferably, the step (2) specifically comprises: (2a) comparing the subdivided regions in the view with a preset human skin image information model library, and extracting human skin image information contained in the subdivided regions; (2b) and calculating the position coordinates and the size of the human skin image information, and positioning the skin exposure area.
Preferably, the step (3) specifically comprises: (3a) planning the air supply line so that a single air supply area along the air supply line is close to but avoids the skin exposure area; (3b) and controlling the air supply device of the fan to swing left and right or up and down, and supplying air along the air supply line.
Preferably, the position coordinates and size of the human skin image information are identified by a minimum circle covering the skin exposure area, and the single air supply area is identified by an air supply circular area of an air supply device of the fan.
Preferably, step (3) is replaced by step (3T): (3T) controlling the fan to stop or reduce the air supply in the skin exposure area.
A fan supply air control system comprising:
the view acquisition module is used for taking the fan as a visual observation point and acquiring a view of an air supply area of the fan;
the view processing module is used for identifying and positioning the skin exposure area of the human body in the view through a visual recognition technology;
and the fan control module is used for controlling the fan to avoid the skin exposure area for air supply.
Specifically, the view processing module includes: the first processing unit is used for comparing the subdivided regions in the view with a preset human skin image information model library and extracting human skin image information contained in the subdivided regions; and the second processing unit is used for calculating the position coordinates and the size of the human skin image information and positioning the skin exposure area.
Specifically, the fan control module includes: an air supply route planning unit for planning an air supply route so that a single air supply area along the air supply route is close to but avoids the skin exposure area; and the air supply device control unit is used for controlling the air supply device of the fan to swing left and right or up and down and supplying air along the air supply line.
The invention has the beneficial effects that: the human body limb recognition technology is adopted, the air supply circuit is planned by recognizing and positioning the skin exposure area of the human body in the user scene, so that the part, exposed to the skin, of the human body is avoided for air supply in the air supply process, the direct blowing of the skin is avoided while the air supply is performed to the maximum extent, and the air supply device is very suitable for being used when a user sleeps.
Drawings
Fig. 1 is a schematic diagram illustrating a fan blowing control system according to an embodiment of the present invention.
Fig. 2 is a flowchart of a fan blowing control method according to an embodiment of the present invention.
FIG. 3 is a schematic diagram of specific air-blowing-surface skin-avoiding air-blowing according to an embodiment of the present invention.
Fig. 4 is an analysis diagram of the air supply path planning principle according to the embodiment of the present invention.
Detailed Description
As shown in fig. 1, the present embodiment provides a fan blowing control system, which includes a view acquisition module, a view processing module, a fan control module, and a mode instruction input module. The mode instruction input module is used for inputting an air supply mode selection instruction, and the air supply mode comprises a skin-avoiding air supply mode (namely an air supply mode for avoiding an exposed area of human skin).
The view acquisition module is a camera arranged on the fan, is specifically arranged at the horizontal center of the air outlet surface of the fan and is used for acquiring a view of an air supply area of the fan by taking the fan as a visual observation point; the view angle of the view acquisition module covers the whole air supply range of the fan (namely, the air supply area covered by the left-right swinging amplitude and the up-down swinging amplitude of the air supply device of the fan are used as visual angles), and the view acquisition module is used for collecting scene image information of the air supply area of the fan and transmitting the scene image information to the view processing module in real time.
The view processing module is a data processing and analyzing module integrated with the fan controller and used for identifying and positioning the skin exposure area of the human body in the view through a visual recognition technology. The view processing module is internally provided with a human skin image information model base and is provided with a corresponding program algorithm, and the algorithm is used for comparing the image information of the view collected by the vision acquisition module with the built-in human skin image information model so as to extract the user skin exposure information contained in the image information and output the skin exposure position coordinate and the area size information to the fan control module. Specifically, the view processing module includes: the first processing unit is used for comparing the subdivided regions in the view with a preset human skin image information model library and extracting human skin image information contained in the subdivided regions; and the second processing unit is used for calculating the position coordinates and the size of the human skin image information and positioning the skin exposure area.
The fan control module is used for controlling the fan to avoid the skin exposure area for air supply, and of course, the fan control module can also be used for controlling the air supply speed and the like. Specifically, the fan control module includes: an air supply route planning unit for planning an air supply route so that a single air supply area along the air supply route is close to but avoids the skin exposure area; and the air supply device control unit is used for controlling the air supply device of the fan to swing left and right or up and down and supplying air along the air supply line.
As shown in fig. 2, the fan blowing control of the present embodiment includes four steps:
firstly, selecting an air supply mode, and entering a skin-avoiding air supply mode;
secondly, executing a user scene view acquisition action, acquiring user scene information in an air supply range in real time by a view acquisition module, and transmitting the user scene information to a view processing module, wherein the view processing module is an artificial intelligent vision processing module;
thirdly, the view processing module receives the user scene information image, identifies whether the user skin directly exposes information in the fan air supply range through an image identification algorithm, if so, converts the area into a circular area, and records the coordinate and diameter information of the circular area;
and finally, the electric fan control module replans the air supply path according to the determined user skin exposure information, and controls the air supply module of the electric fan to avoid the user skin exposure position in the air supply process.
FIG. 3 is a schematic diagram of specific air-supply-surface skin-avoiding air supply according to an embodiment of the present invention. The fan 20 blows air from left to right within the air blowing range, and the blowing air direction avoids skin exposure areas such as the foot area 13, the hand area 12, the head and face area 11 of the lying human body 10 during air blowing, so that the air around the human body circulates as much as possible while the direct blowing of the skin of the human body is avoided.
Combination examples fig. 4 shows:
firstly, an image acquisition module acquires the maximum air supply area of the current air supply device of the fan, and the acquired image is processed and set as a plane rectangular chart, namely a plane 401 of the maximum air supply area of the air supply device in the chart;
next, as in the region range of the figure, three areas of the human skin exposure area, feet, hands and heads in total, are identified, set as a circular area of a specific diameter (the diameter is to cover the skin exposure area), the center coordinates of which are (x1, y1), (x2, y2), (x3, y3) respectively, are recorded, and the radii of the exposed skin area are measured as r1, r2, r3 respectively, finally forming coordinate and size data sets (x1, y1, r1), (x2, y2, r2), (x3, y3, r3) as indicated in fig. 4.
As known, the air supply angle of the fan is horizontal and vertical, namely, the fan swings left and right and up and down; moreover, a single blowing area of the fan (which can be understood as a blowing area when the blowing device of the fan is fixed at a certain point) can also be regarded as a circular area 402 with a specific size, and the radius of the circular area is r 0; the known fan supplies air horizontally and leftwards and rightwards, the vertical coordinate of the air supply is y0, and a path is planned from left to right; when a first skin exposure area appears on the path, preferentially calculating a first turning point coordinate (x1-r1-r0, y0) according to an exposure area coordinate set (x1, y1, r 1); then, comparing the default horizontal coordinate y0 with the exposure area coordinate y1 to calculate a second turning coordinate point (x1-r1-r0, y1+ r0+ r 1); by analogy, a fan air supply track central line 403 in the drawing is planned, namely a specific air supply path for the current fan air supply device to operate.
And finally, continuously acquiring scene image information in real time by the image acquisition module, comparing whether the human skin exposure area in the subsequent acquired image is changed, if not, continuously supplying air according to the current air supply track, and if so, repeating the analysis process and replanning the calculation route.
The foregoing detailed description is given for clearness of disclosure and not of limitation, and all changes that come within the meaning and range of equivalents thereof are intended to be embraced therein without undue experimentation.
Claims (10)
1. A fan blowing control method is characterized by comprising the following steps:
(1) taking a fan as a visual observation point, and acquiring a view of an air supply area of the fan;
(2) identifying and locating an exposed area of skin of the human body in the view by visual recognition techniques;
(3) and controlling the fan to avoid the skin exposure area for air supply.
2. The fan blowing control method according to claim 1, further comprising a blowing mode selection step before step (1), wherein the blowing mode includes a skin-avoiding blowing mode, and the step (1) is entered when the skin-avoiding blowing mode is selected.
3. The fan blowing control method according to claim 1, wherein the blowing area is: the left-right swing amplitude and the up-down swing amplitude of the air supply device of the fan are used as visual angles, and the air supply area is covered.
4. The fan blowing control method according to any one of claims 1 to 3, wherein the step (2) specifically includes: (2a) comparing the subdivided regions in the view with a preset human skin image information model library, and extracting human skin image information contained in the subdivided regions; (2b) and calculating the position coordinates and the size of the human skin image information, and positioning the skin exposure area.
5. The fan blowing control method according to claim 4, wherein the step (3) specifically includes: (3a) planning the air supply line so that a single air supply area along the air supply line is close to but avoids the skin exposure area; (3b) and controlling the air supply device of the fan to swing left and right or up and down, and supplying air along the air supply line.
6. The fan blowing control method according to claim 5, wherein the position coordinates and size of the human skin image information are identified by a minimum circle covering the skin exposure area, and the individual blowing area is identified by a blowing circle area of a blowing device of the fan.
7. The fan blowing control method according to claim 1, wherein step (3) is replaced with step (3T): (3T) controlling the fan to stop or reduce the air supply in the skin exposure area.
8. A fan supply air control system, comprising:
the view acquisition module is used for taking the fan as a visual observation point and acquiring a view of an air supply area of the fan;
the view processing module is used for identifying and positioning the skin exposure area of the human body in the view through a visual recognition technology;
and the fan control module is used for controlling the fan to avoid the skin exposure area for air supply.
9. The fan supply control system of claim 8, wherein the view processing module comprises: the first processing unit is used for comparing the subdivided regions in the view with a preset human skin image information model library and extracting human skin image information contained in the subdivided regions; and the second processing unit is used for calculating the position coordinates and the size of the human skin image information and positioning the skin exposure area.
10. The fan supply control system of claim 9, wherein the fan control module comprises: an air supply route planning unit for planning an air supply route so that a single air supply area along the air supply route is close to but avoids the skin exposure area; and the air supply device control unit is used for controlling the air supply device of the fan to swing left and right or up and down and supplying air along the air supply line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111445000.9A CN114087225B (en) | 2021-11-30 | 2021-11-30 | Fan air supply control method and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111445000.9A CN114087225B (en) | 2021-11-30 | 2021-11-30 | Fan air supply control method and system |
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| Publication Number | Publication Date |
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| CN114087225A true CN114087225A (en) | 2022-02-25 |
| CN114087225B CN114087225B (en) | 2022-11-11 |
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| CN202111445000.9A Active CN114087225B (en) | 2021-11-30 | 2021-11-30 | Fan air supply control method and system |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107421067A (en) * | 2017-07-26 | 2017-12-01 | 广东美的制冷设备有限公司 | Air-conditioning method, apparatus and computer-readable recording medium and air-conditioning |
| JP2019085037A (en) * | 2017-11-09 | 2019-06-06 | 株式会社デンソー | Air conditioner |
| CN110173868A (en) * | 2019-05-29 | 2019-08-27 | 广东美的制冷设备有限公司 | Control method, air conditioner and the storage medium of air conditioner |
| CN111706542A (en) * | 2020-07-29 | 2020-09-25 | 珠海格力电器股份有限公司 | Fan control method, storage medium and fan |
| CN112902321A (en) * | 2019-12-04 | 2021-06-04 | 佛山市云米电器科技有限公司 | Control method for air supply device, air supply system, and storage medium |
| CN113565781A (en) * | 2020-04-28 | 2021-10-29 | 佛山市顺德区美的电热电器制造有限公司 | Fan, control method and device thereof, and storage medium |
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2021
- 2021-11-30 CN CN202111445000.9A patent/CN114087225B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107421067A (en) * | 2017-07-26 | 2017-12-01 | 广东美的制冷设备有限公司 | Air-conditioning method, apparatus and computer-readable recording medium and air-conditioning |
| JP2019085037A (en) * | 2017-11-09 | 2019-06-06 | 株式会社デンソー | Air conditioner |
| CN110173868A (en) * | 2019-05-29 | 2019-08-27 | 广东美的制冷设备有限公司 | Control method, air conditioner and the storage medium of air conditioner |
| CN112902321A (en) * | 2019-12-04 | 2021-06-04 | 佛山市云米电器科技有限公司 | Control method for air supply device, air supply system, and storage medium |
| CN113565781A (en) * | 2020-04-28 | 2021-10-29 | 佛山市顺德区美的电热电器制造有限公司 | Fan, control method and device thereof, and storage medium |
| CN111706542A (en) * | 2020-07-29 | 2020-09-25 | 珠海格力电器股份有限公司 | Fan control method, storage medium and fan |
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| Publication number | Publication date |
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| CN114087225B (en) | 2022-11-11 |
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