CN114543281B - Sleeping tool position detection method and device based on radar equipment and air conditioner indoor unit - Google Patents
Sleeping tool position detection method and device based on radar equipment and air conditioner indoor unit Download PDFInfo
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- CN114543281B CN114543281B CN202210150367.6A CN202210150367A CN114543281B CN 114543281 B CN114543281 B CN 114543281B CN 202210150367 A CN202210150367 A CN 202210150367A CN 114543281 B CN114543281 B CN 114543281B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/54—Control or safety arrangements characterised by user interfaces or communication using one central controller connected to several sub-controllers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/61—Control or safety arrangements characterised by user interfaces or communication using timers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/65—Electronic processing for selecting an operating mode
- F24F11/66—Sleep mode
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/02—Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
- G01S13/06—Systems determining position data of a target
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2120/00—Control inputs relating to users or occupants
- F24F2120/10—Occupancy
- F24F2120/12—Position of occupants
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2130/00—Control inputs relating to environmental factors not covered by group F24F2110/00
- F24F2130/20—Sunlight
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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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- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Remote Sensing (AREA)
- Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Human Computer Interaction (AREA)
- Computer Networks & Wireless Communication (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
Abstract
The invention discloses a sleeping tool position detection method and device and an air conditioner indoor unit, wherein the sleeping tool position detection method comprises the steps of setting a sleeping time period and an action frequency threshold value, and detecting the action frequency of a person in the sleeping time period; comparing the operating frequency with an operating frequency threshold; when the action frequency is smaller than the action frequency threshold value, judging that the action frequency is an actual sleep time period; detecting the moving range of the person in the room and setting the center position as moving coordinates (x, y); setting the increment of four-corner coordinates of the sleeping tool relative to the movable coordinates as delta x1, delta y1, delta x2 and delta y2 respectively; the four-corner coordinates of the sleeper are a (x+Δx1, y+Δy1), B (x+Δx1, y+Δy2), C (x+Δx2, y+Δy2), and D (x+Δx2, y+Δy1), respectively. The air conditioning indoor unit includes an air conditioning controller configured with a sleep position detection method and a sleep mode, and can start the sleep mode when it is determined that the sleep period is actually in progress. The cost is reduced.
Description
Technical Field
The invention relates to the technical field of air conditioning, in particular to a sleeping tool position detection method and device based on radar equipment and an air conditioning indoor unit.
Background
The human sense detection technology of the household appliances is mature continuously, such as infrared human sense, image recognition (camera) human sense, radar wave human sense and the like, and the household appliances are increasingly popular in application.
The radar wave human sense can realize dynamic human body detection, and the 24G or 60G radar wave human sense equipment commonly used in the field of household appliances cannot realize fine detection of human actions; the radar wave device capable of realizing the fine detection of the human action is high in price and increases the use cost.
The operation mode of the air conditioner may affect the sleeping quality of the user. For example, the existing sleep mode of the air conditioner starts a refrigerating timing heating mode or a heating timing cooling mode when the sleep mode of the air conditioner is started, and is closed after the air conditioner is operated for a timing time. Such sleep patterns often do not match the actual sleep situation of the user, affecting the user experience.
When radar waves sense that whether a user is on a bed or not and the action condition of the bed is detected, the position of the bed needs to be determined; whereas radar wave detection is insensitive to stationary objects, it is necessary to input the position of the bed or to determine the position of the bed by other detection means. If the position of the bed is determined by manual input, repeated input can be generated due to the uncertainty of the position of the bed or the change of the position of the bed; other detection methods may increase costs or create privacy concerns if the position of the bed is to be determined.
Disclosure of Invention
In order to solve the problems that in the prior art, the position of a bed is required to be input or otherwise detected and the sleep mode experience of an air conditioner is poor due to the fact that radar waves are insensitive to static objects, the invention provides a sleeping tool position detection method and device based on radar equipment, and an air conditioner indoor unit.
In order to achieve the above purpose, the invention adopts the following technical scheme:
the invention provides a sleeping tool position detection method based on radar equipment, which comprises the following steps:
setting a sleep time period;
detecting, by the radar device, a frequency of motion of a person in a room during the sleep period;
setting an action frequency threshold value, and comparing the action frequency with the action frequency threshold value; when the action frequency is smaller than the action frequency threshold value, judging that the action frequency is an actual sleep time period;
detecting, by the radar device, a range of motion of a person in a room during the actual sleep period, and setting a center position coordinate of the range of motion as an initial motion coordinate (x 1, y 1);
setting coordinate increment of four-corner coordinates of the sleeping tool relative to the initial movable coordinates as delta x1, delta y1, delta x2 and delta y2 respectively; the four-corner coordinates of the sleeper are A1 (x1+Δx1, y1+Δy1), B1 (x1+Δx1, y1+Δy2), C1 (x1+Δx2, y1+Δy2), D2 (x1+Δx2, y1+Δy1), respectively.
According to some embodiments of the invention, the sleeper position detection method further comprises:
circularly detecting the activity range of the person in the room of the actual sleeping time period, and setting the central position coordinate of the activity range as a corrected activity coordinate (xi, yi);
four corner correction coordinates of the sleeping implement are Ai (xi+Δx1, yi+Δy1), bi (xi+Δx1, yi+Δy2), ci (xi+Δx2, yi+Δy2) and Di (xi+Δx2, yi+Δy1) respectively;
four corner coordinates of the sleeping implement are A (x 01, y 01), B (x 02, y 02), C (x 03, y 03) and D (x 04, y 04), and the four corner coordinates are points with the largest quadrilateral area formed by points A1-Ai, B1-Bi, C1-Ci and D1-Di.
According to some embodiments of the invention, the sleeper position detection method further comprises:
four corner coordinates of the sleeping unit are A ((x 01+ x 02)/2, (y 01+ y 04)/2), B ((x 01+ x 02)/2, (y 02+ y 03)/2), C ((x 03+ x 04)/2, (y 02+ y 03)/2) and D ((x 04+ x 01)/2, (y 01+ y 04)/2).
According to some embodiments of the invention, the sleeper position detection method further comprises:
setting an action amplitude threshold;
circularly detecting the motion amplitude of people in a room in the set sleep time period; and comparing the motion amplitude with the motion amplitude threshold; and when the action amplitude is smaller than the action amplitude threshold and the action frequency is smaller than the action frequency threshold, judging that the actual sleep time period is carried out.
According to some embodiments of the invention, the sleeper position detection method further comprises:
setting an indoor illuminance threshold;
acquiring illuminance in a room, and comparing the illuminance with the illuminance threshold; and judging the actual sleep time period when the illuminance is smaller than the illuminance threshold, the action amplitude is smaller than the action amplitude threshold and the action frequency is smaller than the action frequency threshold.
In some embodiments, the coordinate increment (Δx1, Δy1, Δx2, Δy2) of the four-corner coordinates of the sleeper relative to the initial activity coordinates includes at least two levels;
the level of the coordinate increment of the four-corner coordinates of the sleeper with respect to the initial activity coordinates is selected according to the type of the sleeper actually used.
According to some embodiments of the invention, when the modified activity coordinate (xi, yi) fluctuates from the initial activity coordinate a plurality of times beyond the coordinate increment, the modified activity coordinate that first exceeds the initial activity coordinate is set as the new initial activity coordinate.
A sleeping tool position detection device based on radar equipment comprises a radar wave human sense detection unit and a controller;
the radar wave human sense detection unit is in communication connection with the controller, and the controller is used for controlling and detecting the activities of people in the room and generating detection signals to be transmitted to the controller;
the controller is provided with the sleeping implement position detection method according to any one of claims 1 to 7, receives the detection signal, and obtains four-corner coordinates of the sleeping implement according to the detection signal.
An air conditioning indoor unit comprising an air conditioning controller configured with the sleeper position detection method of any one of claims 1 to 7 for communication connection with a radar wave human sense detection unit;
the air conditioner controller is configured with a sleep mode and may initiate the sleep mode when it is determined that an actual sleep period is available.
According to some embodiments of the invention, the air conditioner indoor unit further comprises an illuminance sensor connected to the air conditioner controller for detecting indoor illuminance and transmitting the indoor illuminance to the air conditioner controller.
Compared with the prior art, the technical scheme of the invention has the following technical effects:
according to the sleeping tool position detection method and device based on the radar equipment and the air conditioner indoor unit, the radar equipment capable of detecting the activities of people in the room is used for detecting the activities of the people in the room, and whether the people enter an actual sleep time period or not is judged through the set sleep time period; when the person in the room is judged to enter the actual sleeping time period, the moving range of the person is detected, and the sleeping tool position is determined by taking the coordinates of the central position and setting the coordinate increment. The radar equipment used by the sleeping tool position detection method and the sleeping tool position detection device only needs to meet the requirement of detecting the movable object, and the radar equipment with higher hardware and algorithm configuration is not needed, so that the cost is greatly reduced. In addition, the air conditioner indoor unit detects the activities of people in the room in the range of the sleeping tool, so that the efficiency is higher; when the person in the room is judged to enter the actual sleep time period, the sleep mode can be started, the problem of poor user experience caused by the fact that the person does not enter the actual sleep time period, namely, the sleep mode is started, is solved, and the user experience is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a flow chart of an embodiment of a sleeper position detecting method according to the present invention;
FIG. 2 is a flow chart of an embodiment of a sleeper position detecting method according to the present invention;
FIG. 3 is a flow chart of an embodiment of a sleeper position detection method according to the present invention;
FIG. 4 is a schematic diagram of sleeper position coordinates;
FIG. 5 is a schematic workflow diagram of an embodiment of an indoor unit of an air conditioner according to the present invention;
FIG. 6 is a flowchart of increasing the motion amplitude to determine whether to enter an actual sleep period;
fig. 7 is a flowchart for determining whether to enter an actual sleep period by increasing illuminance.
Reference numerals:
1. a sleeping implement; A. a first corner; B. a second angle; C. a third angle; D. fourth corner; E. a central position.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be noted that the terms "mounted," "connected," and "coupled" are to be construed broadly, as well as, for example, fixedly coupled, detachably coupled, or integrally coupled, unless otherwise specifically indicated and defined. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art. In the description of the above embodiments, particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.
In the description of the present invention, unless otherwise indicated, the meaning of "a plurality" is two or more.
Referring to fig. 1 and 4, one embodiment of a radar apparatus-based sleeper position detecting method of the present invention includes the following.
Setting a sleep time period; an operation frequency threshold is set.
Detecting, by the radar device, an action frequency of a person in the room during the sleep period; comparing the operating frequency with an operating frequency threshold; and judging the actual sleep time period when the action frequency is smaller than the action frequency threshold value.
In the actual sleep period, the range of motion of the person in the room is detected by the radar device, and the coordinates of the center position E of the range of motion are set as the initial motion coordinates (x 1, y 1).
Setting the coordinate increment of four-corner coordinates of the sleeping tool 1 relative to the movable coordinates as delta x1, delta y1, delta x2 and delta y2 respectively; that is, the coordinate increment of the x coordinate and the y coordinate of the first angle a of the sleeper 1 relative to the initial moving coordinate is Δx1 and Δy1, respectively; the initial coordinates of the first angle a are A1 (x1+Δx1, y1+Δy1).
The coordinate increment of the x coordinate and the y coordinate of the second angle B of the sleeper 1 relative to the initial movable coordinate is delta x1 and delta y2 respectively; the initial coordinates of the second angle B are B1 (x1+Δx1, y1+Δy2).
The coordinate increment of the coordinate of the third angle C of the sleeper 1 relative to the x coordinate and the y coordinate of the initial movable coordinate is delta x2 and delta y2 respectively; the initial coordinates of the third angle C are B1 (x1+Δx2, y1+Δy2).
The coordinate increment of the coordinate of the fourth corner D of the sleeper 1 relative to the x coordinate and the y coordinate of the initial movable coordinate is delta x2 and delta y1 respectively; the initial coordinates of the fourth corner D are B1 (x1+Δx2, y1+Δy1).
The four-corner coordinates of the sleeper 1 are initial coordinates of the four corners of the sleeper 1, respectively.
Referring to fig. 1 and 4, an embodiment of a radar-device-based sleeper position detecting apparatus of the present invention includes a radar-wave human sense detecting unit, a controller.
The radar wave human sense detection unit is in communication connection with the controller, and the controller is used for controlling and detecting the activities of people in the room and generating detection signals to be transmitted to the controller.
The controller is provided with the sleeper position detection method in the above embodiment, receives the detection signal, and derives the four-corner coordinates of the sleeper 1 from the detection signal.
According to the sleeping tool position detection method and device based on the radar equipment and the air conditioner indoor unit, the radar equipment capable of detecting the activities of people in the room is used for detecting the activities of the people in the room, and whether the people enter an actual sleep time period or not is judged through the set sleep time period; when the person in the room is judged to enter the actual sleeping time period, the moving range of the person is detected, and the sleeping tool position is determined by taking the coordinates of the central position and setting the coordinate increment. The radar equipment used by the sleeping tool position detection method and the sleeping tool position detection device only needs to meet the requirement of detecting the movable object, and the radar equipment with higher hardware and algorithm configuration is not needed, so that the cost is greatly reduced.
Referring to fig. 2 and 4, one embodiment of a radar apparatus-based sleeper position detecting method of the present invention includes the following.
Setting a sleep time period; an operation frequency threshold is set.
Detecting, by the radar device, an action frequency of a person in the room during the sleep period; comparing the operating frequency with an operating frequency threshold; and judging the actual sleep time period when the action frequency is smaller than the action frequency threshold value.
In the actual sleep period, the range of motion of the person in the room is detected by the radar device, and the coordinates of the center position E of the range of motion are set as the initial motion coordinates (x 1, y 1).
Setting the increment of four-corner coordinates of the sleeper 1 relative to initial activity coordinates as delta x1, delta y1, delta x2 and delta y2; the four corners of the sleeper 1 may be found to have initial coordinates of A1 (x1+Δx1, y1+Δy1), B1 (x1+Δx1, y1+Δy2), C1 (x1+Δx2, y1+Δy2), and D1 (x1+Δx2, y1+Δy1), respectively.
The range of motion of a person in a room in a plurality of actual sleep periods is cyclically detected, and the coordinates of the center position E of the range of motion are set as corrected motion coordinates (xi, yi).
The four-corner correction coordinates of the sleeper 1 are Ai (xi+Δx1, yi+Δy1), bi (xi+Δx1, yi+Δy2), ci (xi+Δx2, yi+Δy2), di (xi+Δx2, yi+Δy1) based on the coordinate increment of the four-corner coordinates of the sleeper 1 relative to the correction movement coordinates.
Four-corner coordinates of the sleeping implement 1 are set to be A (x 01, y 01), B (x 02, y 02), C (x 03, y 03) and D (x 04, y 04), and the four-corner coordinates are coordinates of points with the largest quadrilateral area formed by any four points A1-Ai, B1-Bi, C1-Ci and D1-Di.
Referring to fig. 2 and 4, a controller in one embodiment of a radar-equipment-based sleeper position detecting apparatus of the present invention is configured with the sleeper position detecting method of the previous embodiment.
Embodiments of a radar-equipment-based sleeper position detection method and apparatus of the present invention increase accuracy of sleeper position detection by adjusting an area and a position of a sleeper 1 through accumulation of results of detecting a center position E of a movable range a plurality of times.
Referring to fig. 3 and 4, one embodiment of a radar apparatus-based sleeper position detecting method of the present invention includes the following.
Setting a sleep time period; an operation frequency threshold is set.
Detecting, by the radar device, an action frequency of a person in the room during the sleep period; comparing the operating frequency with an operating frequency threshold; and judging the actual sleep time period when the action frequency is smaller than the action frequency threshold value.
In the actual sleep period, the range of motion of the person in the room is detected by the radar device, and the coordinates of the center position E of the range of motion are set as the initial motion coordinates (x 1, y 1).
Setting the coordinate increment of four-corner coordinates of the sleeper 1 relative to the initial movable coordinates as delta x1, delta y1, delta x2 and delta y2; the four corners of the sleeper 1 may be found to have initial coordinates of A1 (x1+Δx1, y1+Δy1), B1 (x1+Δx1, y1+Δy2), C1 (x1+Δx2, y1+Δy2), and D1 (x1+Δx2, y1+Δy1), respectively.
The range of motion of a person in a room in a plurality of actual sleep periods is cyclically detected, and the coordinates of the center position E of the range of motion are set as corrected motion coordinates (xi, yi).
The four-corner correction coordinates of the sleeper 1 are Ai (xi+Δx1, yi+Δy1), bi (xi+Δx1, yi+Δy2), ci (xi+Δx2, yi+Δy2), di (xi+Δx2, yi+Δy1) based on the coordinate increment of the four-corner coordinates of the sleeper 1 relative to the correction movement coordinates.
Four-corner coordinates of the sleeping implement 1 are set to be A (x 01, y 01), B (x 02, y 02), C (x 03, y 03) and D (x 04, y 04), and the four-corner coordinates are coordinates of points with the largest quadrilateral area formed by any four points A1-Ai, B1-Bi, C1-Ci and D1-Di.
Further, the x coordinates of the points a and B at the four corners of the sleeper 1 are averaged to be the x coordinates of the points a and B; the x coordinates of the C point and the D point are averaged to obtain the x coordinates of the C point and the D point; averaging y coordinates of the point A and the point D to obtain y coordinates of the point A and the point D; the y coordinates of the B point and the C point are averaged to obtain the four-corner coordinates of the sleeper 1 as a ((x01+x02)/2, (y01+y04)/2) ((x01+x02)/2, (y02+y03)/2), (x03+x04)/2, (y02+y03)/2) ((x04+x01)/2) and (y01+y04)/2), respectively.
Referring to fig. 2 and 4, a controller in one embodiment of a radar-equipment-based sleeper position detecting apparatus of the present invention is configured with the sleeper position detecting method of the previous embodiment.
According to the embodiment of the method and the device for detecting the position of the sleeping tool based on the radar equipment, the four-corner coordinates of the sleeping tool in the direction of the set coordinate system are obtained by averaging the x-coordinate and the y-coordinate of the four-corner coordinates of the sleeping tool 1 in the irregular pattern, so that the accuracy of the position and the shape of the sleeping tool is improved.
Of course, in the above-described embodiment, the time and order of setting the sleep period, setting the operation frequency threshold value, and the coordinate increment are not specified, and the setting may be completed before use.
In addition, it is necessary to supplement that when the number of people in the room is more than one, it is judged that the action frequency or both the action frequency and the action amplitude of all the people satisfy the threshold value, and then it is judged that the user enters the actual sleep period. When the sleeping time period is entered, the movable range of the person on the sleeping tool 1 is the movable range of the person, and the movable coordinate is the coordinate of the central position E of the movable range of the person.
Referring to fig. 1, 2, 3, 4 and 6, some embodiments of the sleeper position detecting method of the present invention further include the following.
An action amplitude threshold is set when whether to enter an actual sleep period.
Circularly detecting the motion amplitude of people in a room in a sleep time period; and compares the motion amplitude with a motion amplitude threshold.
And when the action amplitude is smaller than the action amplitude threshold value and the action frequency is smaller than the action frequency threshold value, judging that the actual sleep time period is achieved.
The sleeper position detection will be made for the actual sleep period described above.
Referring to fig. 1, 2, 3, 4 and 6, the controller of the sleeper position detecting apparatus of the present invention is configured with the sleeper position detecting method of the above embodiment.
The embodiment of the sleeping tool position detection method and device increases the judgment of the activity amplitude of people in a room, increases the accuracy of the judgment of the actual sleeping time period, and further increases the accuracy of sleeping tool position detection.
Referring to fig. 1, 2, 3, 4, 6 and 7, some embodiments of the sleeper position detecting method according to the present invention further include the following on the basis of the above embodiment.
An indoor illuminance threshold is set when the actual sleep period is entered.
The illuminance in the room is obtained and compared with an illuminance threshold. And judging the actual sleep time period when the illuminance is smaller than the illuminance threshold, the action amplitude is smaller than the action amplitude threshold and the action frequency is smaller than the action frequency threshold.
The sleeper position detection will be made for the actual sleep period described above.
Referring to fig. 1, 2, 3, 4, 6 and 7, the controller of the sleeper position detecting apparatus of the present invention is configured with the sleeper position detecting method of the above embodiment.
The embodiment of the invention increases the judgment of the illuminance in the room, increases the accuracy and the reliability of the judgment of the actual sleeping time period, and further increases the accuracy and the reliability of the position detection of the sleeping tool.
Of course, the embodiment of the sleeping implement position detecting method and device of the present invention may further include determining the action frequency and illuminance, and determining whether to enter the actual sleeping time period.
Referring to fig. 1, 2, 3 and 4, in one embodiment of the sleeper position detecting method of the present invention, the coordinate increment (Δx1, Δy1, Δx2, Δy2) of the four corner coordinates of the sleeper 1 with respect to the movable coordinates includes at least two levels.
One of the grades is set according to the area of the larger sleeper 1 in practical application; the level of the coordinate increment included in addition is set according to the area of the smaller sleeper 1 in actual use.
The level of the use coordinate increment is selected according to the type of the sleeper 1 actually used in the room.
Referring to fig. 1, 2, 3 and 4, a controller of one embodiment of a sleeper position detecting apparatus of the present invention is configured with the sleeper position detecting method of the previous embodiment.
The sleeping implement position detection method and device increase the adaptability of the sleeping implement 1, and improve the accuracy and reliability of the sleeping implement position detection and the area detection.
In one embodiment of the sleeper position detecting method of the present invention, when the change of the corrected movable coordinate relative to the initial movable coordinate exceeds the coordinate increment multiple times, the corrected movable coordinate exceeding the initial movable coordinate for the first time is set as a new initial movable coordinate, and a new round of sleeper position accumulation update is started.
The controller of one embodiment of the sleeper position detecting apparatus of the present invention is configured with the sleeper position detecting method of the previous embodiment.
The sleeper position detection method and device of the embodiment solve the problem of updating the sleeper position when the sleeper 1 moves in the room, and improve the reliability and accuracy of sleeper position detection.
Referring to fig. 1, 2, 3, 4, 5, 6 and 7, an embodiment of an air conditioner indoor unit disclosed in the present invention includes an air conditioner controller configured with the sleep position detection method in any of the above embodiments, for communication connection with a radar wave human sense detection unit, receiving a detection signal of the radar wave human sense detection unit, and determining whether an actual sleep period has been entered according to an action frequency and/or an action amplitude of a person in a room.
The air conditioner controller is configured with a sleep mode and is configured to initiate the sleep mode when it determines to enter an actual sleep period. That is, when the sleep mode is started, only if it is judged that a person in a room enters an actual sleep state, the sleep mode of the air conditioner indoor unit is actually started.
The indoor unit of the air conditioner judges whether the people in the room enter the actual sleep time period or not by receiving the action frequency and the action amplitude of the people in the room detected by the radar wave human sense detection unit, and truly starts the sleep mode after the people enter the actual sleep time period, so that the starting intellectualization of the sleep mode is improved, and the user experience of the indoor unit of the air conditioner is improved.
In addition, after the position of the sleeping tool 1 is primarily determined, the radar wave human sense detection unit only detects the proper range in and out of the four-corner coordinate range of the sleeping tool 1, so that the detection efficiency of the radar wave human sense detection unit is improved, and the judgment efficiency and accuracy of the actual sleeping time period are improved.
Referring to fig. 1, 2, 3, 4, 5, 6 and 7, an embodiment of the air conditioner indoor unit disclosed in the present invention further includes an alarm device connected to the air conditioner controller on the basis of the previous embodiment; the air conditioner controller is also configured to judge the position of a person on the sleeper 1 relative to the sleeper 1 in an actual sleeping time period, and to control the alarm device to alarm when the person is judged to be located at the edge of the sleeper 1.
The indoor unit of the air conditioner prevents children from falling down at night, expands the functions of the indoor unit of the air conditioner, and improves user experience.
Referring to fig. 1, 2, 3, 4, 5, 6 and 7, an embodiment of the air conditioner indoor unit disclosed by the invention further comprises an illuminance sensor, which is connected with the air conditioner controller and fixedly arranged on a shell of the air conditioner indoor unit, and is used for detecting the illuminance of the indoor air and transmitting the illuminance to the air conditioner controller for judging whether to enter an actual sleep time period.
In the description of the above embodiments, particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing is merely illustrative of the present invention, and the present invention is not limited thereto, and any changes or substitutions easily contemplated by those skilled in the art within the scope of the present invention should be included in the scope of the present invention. Therefore, the protection scope of the invention is subject to the protection scope of the claims.
Claims (9)
1. A method for detecting a position of a sleeper based on a radar apparatus, comprising:
setting a sleep time period;
detecting, by the radar device, a frequency of motion of a person in a room during the sleep period;
setting an action frequency threshold value, and comparing the action frequency with the action frequency threshold value; when the action frequency is smaller than the action frequency threshold value, judging that the action frequency is an actual sleep time period;
detecting, by the radar device, a range of motion of a person in a room during the actual sleep period, and setting a center position coordinate of the range of motion as an initial motion coordinate (x 1, y 1);
setting coordinate increment of four-corner coordinates of the sleeping tool relative to the initial movable coordinates as delta x1, delta y1, delta x2 and delta y2 respectively; four-corner coordinates of the sleeping unit are A1 (x1+Δx1, y1+Δy1), B1 (x1+Δx1, y1+Δy2), C1 (x1+Δx2, y1+Δy2) and D2 (x1+Δx2, y1+Δy1), respectively;
circularly detecting the activity range of the person in the room of the actual sleeping time period, and setting the central position coordinate of the activity range as a corrected activity coordinate (xi, yi);
four corner correction coordinates of the sleeping implement are Ai (xi+Δx1, yi+Δy1), bi (xi+Δx1, yi+Δy2), ci (xi+Δx2, yi+Δy2) and Di (xi+Δx2, yi+Δy1) respectively;
four corner coordinates of the sleeping implement are A (x 01, y 01), B (x 02, y 02), C (x 03, y 03) and D (x 04, y 04), and the four corner coordinates are points with the largest quadrilateral area formed by points A1-Ai, B1-Bi, C1-Ci and D1-Di.
2. The sleeper position detection method of claim 1, further comprising:
four corner coordinates of the sleeping unit of the irregular pattern are A ((x01+x02)/2, (y01+y04)/2), B ((x01+x02)/2, (y02+y03)/2), C ((x03+x04)/2, (y02+y03)/2) and D ((x04+x01)/2, (y01+y04)/2), respectively.
3. The sleeper position detection method according to claim 1 or 2, further comprising:
setting an action amplitude threshold;
circularly detecting the motion amplitude of people in a room in the set sleep time period; and comparing the motion amplitude with the motion amplitude threshold; and when the action amplitude is smaller than the action amplitude threshold and the action frequency is smaller than the action frequency threshold, judging that the actual sleep time period is carried out.
4. The sleeper position detection method as described in claim 3, further comprising:
setting an indoor illuminance threshold;
acquiring illuminance in a room, and comparing the illuminance with the illuminance threshold; and judging the actual sleep time period when the illuminance is smaller than the illuminance threshold, the action amplitude is smaller than the action amplitude threshold and the action frequency is smaller than the action frequency threshold.
5. The sleeper position detection method according to claim 1 or 2, wherein the coordinate increment (Δx1, Δy1, Δx2, Δy2) of the four corner coordinates of the sleeper with respect to the initial active coordinate includes at least two levels;
the level of the coordinate increment of the four-corner coordinates of the sleeper with respect to the initial activity coordinates is selected according to the type of the sleeper actually used.
6. The sleeper position detection method according to claim 1 or 2, wherein when the modified activity coordinate (xi, yi) fluctuates from the initial activity coordinate a plurality of times beyond the coordinate increment, the modified activity coordinate that exceeds the initial activity coordinate for the first time is set as the new initial activity coordinate.
7. The sleeping tool position detection device based on the radar equipment is characterized by comprising a radar wave human sense detection unit and a controller;
the radar wave human sense detection unit is in communication connection with the controller, and the controller is used for controlling and detecting the activities of people in the room and generating detection signals to be transmitted to the controller;
the controller is provided with the sleeping implement position detection method according to any one of claims 1 to 6, receives the detection signal, and obtains four-corner coordinates of the sleeping implement according to the detection signal.
8. An air conditioning indoor unit comprising an air conditioning controller configured with the sleeper position detection method according to any one of claims 1 to 6 for communication connection with a radar wave human sense detection unit;
the air conditioner controller is configured with a sleep mode and may initiate the sleep mode when it is determined that an actual sleep period is available.
9. The indoor unit of claim 8, further comprising an illuminance sensor coupled to the air conditioner controller for detecting an indoor illuminance and transmitting the indoor illuminance to the air conditioner controller.
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