CN104596042A - Human body detection-based air conditioner control method, device and system - Google Patents
Human body detection-based air conditioner control method, device and system Download PDFInfo
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- CN104596042A CN104596042A CN201510074060.2A CN201510074060A CN104596042A CN 104596042 A CN104596042 A CN 104596042A CN 201510074060 A CN201510074060 A CN 201510074060A CN 104596042 A CN104596042 A CN 104596042A
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- thermal source
- transmission mechanism
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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
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
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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
-
- 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
Abstract
The invention provides a human body detection-based air conditioner control method, device and system, wherein the method comprises the following steps: controlling a transmission mechanism to start to run after a user turns on an air conditioner and enables the human body detection function, so that the transmission mechanism drives an infrared array sensor to perform global scanning and acquire a room temperature distribution value; determining a heat source according to a difference between the room temperature distribution value and a background temperature threshold, determining another heat source of the human body in the heat source, and acquiring position information of the heat source of the human body; performing partial scanning according to the position information of the heat source of the human body, continuing to reduce the area of partial scanning after determining that the focus of the heat source has no change in the partial scanning until a preset minimum scanning area is scanned. The method can reduce the loss of active heat source and reduce the costs of air conditioners.
Description
Technical field
The present invention relates to household electrical appliance technical field, particularly relate to a kind of air conditioning control method based on human detection, device and system.
Background technology
Existing domestic air conditioning has had the infrared sensor array that human body thermal source detects.After infrared sensor array has detected thermal source, adjust the air supply direction of air-conditioning according to heat source position.
Existing infrared sensor array is face battle array infrared sensor array, such as 32*31 pixel or 64*62 pixel.Face battle array infrared sensor array can detect the event trace of heat source position and thermal source in real time, but causes the significantly raising of cost like this.
Summary of the invention
The present invention is intended to solve one of technical problem in correlation technique at least to a certain extent.
For this reason, one object of the present invention is to propose a kind of air conditioning control method based on human detection, and the method can reduce movable thermal source and loses and reduce air-conditioning cost.
Another object of the present invention is to propose a kind of control control device based on human detection.
For achieving the above object, the air conditioning control method based on human detection that first aspect present invention embodiment proposes, comprise: after user opens air-conditioning and enables human detection function, control transmission mechanism brings into operation, to make described transmission mechanism drive infrared sensor array to carry out whole scan, obtain room temperature layout value; According to the difference determination thermal source of described room temperature layout value and ambient temperature threshold value, and in described thermal source, determine the thermal source belonging to people, and belong to the positional information of the thermal source of people described in obtaining; According to the described positional information belonging to the thermal source of people, carry out partial sweep, and determine to continue to reduce the area of partial sweep after the center of gravity of described thermal source does not change until scan with the minimum scan area preset at partial sweep.
The air conditioning control method based on human detection that first aspect present invention embodiment proposes, by carrying out partial sweep according to the positional information of the thermal source belonging to people, and reduce scan area further when center of gravity does not change, can reduce costs, in addition, the present embodiment drives infrared sensor array to carry out whole scan by transmission mechanism, can reduce movable thermal source and lose.
For achieving the above object, the air conditioning control device based on human detection that second aspect present invention embodiment proposes, comprise: the first control module, for opening air-conditioning user and after enabling human detection function, control transmission mechanism brings into operation, and drives infrared sensor array to carry out whole scan to make described transmission mechanism; Receiver module, for receiving the temperature value that described infrared sensor array sends, and obtains room temperature layout value; First determination module, for the difference determination thermal source according to described temperature value and ambient temperature threshold value, and determines the thermal source belonging to people in described thermal source, and belongs to the positional information of the thermal source of people described in obtaining; Adjusting module, for belonging to the positional information of the thermal source of people described in basis, carries out partial sweep, and determines to continue to reduce the area of partial sweep after the center of gravity of described thermal source does not change until scan with the minimum scan area preset at partial sweep.
The air conditioning control device based on human detection that second aspect present invention embodiment proposes, by carrying out partial sweep according to the positional information of the thermal source belonging to people, and reduce scan area further when center of gravity does not change, can reduce costs, in addition, the present embodiment drives infrared sensor array to carry out whole scan by transmission mechanism, can reduce movable thermal source and lose.
For achieving the above object, the air-conditioner control system based on human detection that third aspect present invention embodiment proposes, comprising: infrared sensor array, and described infrared sensor array is used for the temperature value gathered when scanning in indoor environment; Transmission mechanism, is connected with described infrared sensor array, carries out scanning position adjustment for driving described infrared sensor array; Air-conditioning master control unit, be the device as described in any one of second aspect embodiment, be connected with described infrared sensor array and described transmission mechanism, for obtaining the temperature value that described infrared sensor array gathers, and obtain room temperature layout value, and control the operation of described transmission mechanism.
The air-conditioner control system based on human detection that third aspect present invention embodiment proposes, by carrying out partial sweep according to the positional information of the thermal source belonging to people, and reduce scan area further when center of gravity does not change, can reduce costs, in addition, the present embodiment drives infrared sensor array to carry out whole scan by transmission mechanism, can reduce movable thermal source and lose.
The aspect that the present invention adds and advantage will part provide in the following description, and part will become obvious from the following description, or be recognized by practice of the present invention.
Accompanying drawing explanation
The present invention above-mentioned and/or additional aspect and advantage will become obvious and easy understand from the following description of the accompanying drawings of embodiments, wherein:
Fig. 1 is the structural representation of the air-conditioner control system based on human detection that one embodiment of the invention proposes;
Fig. 2 is the schematic flow sheet of the air conditioning control method based on human detection that another embodiment of the present invention proposes;
Fig. 3 is the schematic diagram that in the embodiment of the present invention, transmission mechanism drives infrared sensor array whole scan;
Fig. 4 is the schematic flow sheet of the air conditioning control method based on human detection that another embodiment of the present invention proposes;
Fig. 5 is that in the embodiment of the present invention, transmission mechanism drives infrared sensor array to reduce the schematic diagram of sweep limits;
Fig. 6 is the schematic diagram that the positional distance of two thermals source in the embodiment of the present invention reduces;
Fig. 7 is the schematic diagram that the positional distance of two thermals source in the embodiment of the present invention increases;
Fig. 8 is the structural representation of the air conditioning control device based on human detection that another embodiment of the present invention proposes;
Fig. 9 is the structural representation of the air conditioning control device based on human detection that another embodiment of the present invention proposes.
Detailed description of the invention
Be described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Being exemplary below by the embodiment be described with reference to the drawings, only for explaining the present invention, and can not limitation of the present invention being interpreted as.On the contrary, embodiments of the invention comprise fall into attached claims spirit and intension within the scope of all changes, amendment and equivalent.
Fig. 1 is the structural representation of the air-conditioner control system based on human detection that one embodiment of the invention proposes, and see Fig. 1, this system 10 comprises: infrared sensor array 11, drive mechanism 12, air-conditioning master control unit 13.
Described infrared sensor array 11 is for gathering the temperature value in indoor environment when scanning; Concrete, the infrared sensor array in the present embodiment can the infrared sensor array of specifically low pixel, such as, and the pixel composition of 20*1.
Transmission mechanism 12, is connected with described infrared sensor array, carries out scanning position adjustment for driving described infrared sensor array;
Air-conditioning master control unit 13, is connected with described infrared sensor array 11 and described transmission mechanism 12, for obtaining the temperature value that described infrared sensor array 11 gathers, and obtains room temperature layout value, and controls described transmission mechanism 12 and run.
In addition, air-conditioning master control unit 13 can also according to described in belong to the positional information of the thermal source of people, carry out at least one item in following item:
Control the air supply direction of wind guide strip;
Control the air output of wind guide strip;
Control temperature value.
The present embodiment is to control the air supply direction of wind guide strip, and see Fig. 1, this system can also comprise:
Wind guide strip 14, is connected with described air-conditioning master control unit 13, for the control adjustment air supply direction according to described air-conditioning master control unit 13.
Accordingly, based on the system shown in Fig. 1, see Fig. 2, the flow process that air-conditioning master control unit performs can comprise:
S21: after user opens air-conditioning and enables human detection function, controls transmission mechanism and brings into operation, and to make described transmission mechanism drive infrared sensor array to carry out whole scan, obtains room temperature layout value.
Wherein, whole scan scans in the maximum magnitude that infrared sensor array can scan.
Such as, see Fig. 3, infrared sensor array, under the drive of transmission mechanism, scans in the scope of the maximum angle preset at infrared sensor array, obtains the room temperature layout value of indoor environment.
Infrared sensor array, when scanning, often can scan the temperature value that certain angle infrared sensor array detects this position, and send to air-conditioning master control unit.
The number of times of whole scan at least needs more than twice, such as, and a value in 5-10 time.
Air-conditioning master control unit can receive the temperature value of the diverse location that infrared sensor array gathers, thus obtains room temperature layout value.Room temperature layout value can show the situation of the temperature value of diverse location in room.
S22: according to the difference determination thermal source of described room temperature layout value and ambient temperature threshold value, and determine the thermal source belonging to people in described thermal source, and belong to the positional information of the thermal source of people described in obtaining.
According to the temperature value obtained after infrared sensor array whole scan, ambient temperature threshold value can be calculated, the mean value of all temperature values that ambient temperature threshold value such as obtains for each whole scan.
After obtaining ambient temperature threshold value, the difference scanning each temperature value and the ambient temperature threshold value obtained can be calculated, if this difference is greater than default threshold value, then this temperature value is the temperature value of thermal source, such as, ambient temperature threshold value is 10 degree, and default threshold value is 2 degree, then the temperature value being greater than 12 degree is the temperature value of thermal source.
Further, after obtaining the temperature value of thermal source, can determine the thermal source belonging to people according to preset rules, preset rules is such as according to characteristics of human body's information or the area etc. that takies according to thermal source.Such as, when infrared sensor array whole scan, air-conditioning master control unit can determine current positional information, infrared sensor array can obtain temperature value and report air-conditioning master control unit, therefore, air-conditioning master control unit can obtain the positional information of temperature value and correspondence, after obtaining thermal source, the positional information corresponding according to thermal source can determine the area of thermal source, if this area is greater than default human body thermal source area features, can determine that this thermal source is the thermal source belonging to people, and according to the positional information obtained before air-conditioning master control unit, the positional information of the thermal source belonging to people can be obtained.
Positional information can comprise: barycentric coodinates and Derivative limit on the left or on the right coordinate, and coordinate can by the relative coordinate of relative air-conditioner position.
Barycentric coodinates can represent with (Gx, Gy), and limit on the left coordinate Xmin represents, limit on the right-right-hand limit coordinate Xmax represents.Wherein, Derivative limit on the left or on the right coordinate represents the coordinate of thermal source leftmost side point and the coordinate of rightmost side point respectively, barycentric coodinates can to thermal source positional information a little calculate rear acquisition, such as, Gx be thermal source the mean value that is worth a little in the x direction, Gy be thermal source the mean value that is worth a little in y-direction.Be understandable that, the calculating of barycentric coodinates also can adopt other conventional account forms, such as, get median or weighted average etc.
S23: according to the described positional information belonging to the thermal source of people, carry out partial sweep, and determine to continue to reduce the area of partial sweep after the center of gravity of described thermal source does not change until scan with the minimum scan area preset at partial sweep.
The concrete mode of carrying out partial sweep can see subsequent embodiment.
Further, after the positional information determining the thermal source belonging to people, subsequent control can also be carried out, to control to be according to positional information adjustment air supply direction, people's pattern can be kept away according to the wind people pattern selected in advance or wind, air supply direction is adjusted to the position towards the thermal source belonging to people, or avoids the position of the thermal source belonging to people.
Such as, when selecting wind people's pattern, the positional information belonging to the thermal source of people comprises: Xmin and Xmax, then the air supply direction of wind guide strip can be between (Xmin-first preset value) and (Xmax+ second preset value), wherein, the first preset value can be identical or different with the second preset value.
The present embodiment is by carrying out partial sweep according to the positional information of the thermal source belonging to people, and reduce scan area further when center of gravity does not change, can reduce costs, in addition, the present embodiment drives infrared sensor array to carry out whole scan by transmission mechanism, can reduce movable thermal source and lose.
Fig. 4 is the schematic flow sheet of the air conditioning control method based on human detection that another embodiment of the present invention proposes, and the method comprises:
S401: air-conditioning brings into operation.
S402: open human detection function.
Wherein, user can adopt the button on air-conditioner or remote pilot operation of air conditioner and open human detection function.
S403: transmission mechanism drives infrared sensor array to carry out whole scan, and temperature value is uploaded to air-conditioning master control unit.
First can initialize before whole scan, such as, the number of times of whole scan is set, the number of times of partial sweep, the threshold value etc. when parameter compares.
After initialization, air-conditioning main control part can send enabled instruction to transmission mechanism, transmission mechanism brings into operation after receiving enabled instruction, transmission mechanism and infrared sensor array can adopt default connected mode to be connected in advance, transmission mechanism is made to drive infrared sensor array to run after operation, and the scanning direction of infrared sensor array can be changed when driving infrared sensor array to run, thus realize whole scan.
Infrared sensor array can gather the temperature value of current location when every predetermined angle, and the temperature value of each position gathered is reported air-conditioning master control unit.Meanwhile, air-conditioning master control unit can determine current positional information, thus can set up the corresponding relation of temperature value and positional information, can form Temperature Distribution matrix according to this corresponding relation.
S404: judge whether whole scan completes, and if so, performs S405, otherwise, repeat S403 and subsequent step thereof.
Wherein, the number of times of whole scan can be repeatedly, such as 5 times, then show that whole scan completes when completing 5 whole scans, otherwise whole scan does not complete.
S405: background extraction temperature threshold.
Such as, after each whole scan completes, can according to scanning all temperature value calculating mean values obtained.
S406: the positional information obtaining thermal source.
In the present embodiment, thermal source refers to the thermal source belonging to people.
Such as, can corresponding each whole scan, determine the positional information of the thermal source once belonging to people.
Wherein, when a whole scan, ambient temperature threshold value can be obtained according to mean value, then calculate the difference of each temperature value and ambient temperature threshold value, if difference is greater than preset difference value, then temperature value is the temperature value of thermal source, in addition, can also according to the area of the positional information determination thermal source of thermal source, when area is greater than preset area, then thermal source is the thermal source belonging to people, and obtains corresponding positional information according to the coordinate value of the Temperature Distribution matrix of thermal source.
S407: judge whether heating source area changes, and if so, performs S413, otherwise, perform S408.
Wherein, the positional information of a thermal source can be obtained during each whole scan, the formed shape of thermal source can be determined according to positional information, the area of shape can be determined again according to the positional information of respective point in shape, by the area determined during whole scan that comparison is different, can judge whether heating source area changes.
S408: the sweep limits reducing infrared sensor array.
When heating source area does not change, partial sweep can be become from whole scan.
Such as, the limit coordinate of the thermal source determined is Xmin and Xmax respectively, suppose that the angle that horizontally rotates corresponding between Xmin and Xmax is Ang, see Fig. 5, the maximum scan angle of the scanning angle of infrared sensor array from the overall situation can be reduced, set when design parameter is dispatched from the factory by producer, during as reduced for the first time, 2.5*Ang can be adjusted to, the level of corresponding wind guide strip sweep wind angle for (Xmin+Xmax)/2 for horizontal center point, sweep wind in each 1.25*Ang angular range in left and right.Follow-up adjustment angle rule all performs by this rule, and the angle value at every turn reduced can pre-set.
S409: the sweep limits after correspondence reduces, multiple scanning preset times, and the barycentric coodinates redefining thermal source when each scanning, and judge whether barycentric coodinates change, if not, perform S410, otherwise, perform S415.
Such as, after scanning angle is adjusted to 2.5*Ang, the scanning angle can carrying out repeatedly (as 3 times) is the multiple scanning of 2.5*Ang, and obtain the barycentric coodinates of thermal source when each scanning, and judge whether barycentric coodinates change by the result of comparison repeatedly (as 3 times).
The number of thermal source can be one or more, when for time multiple, can go out the barycentric coodinates of each thermal source according to positional information calculation.Then show that barycentric coodinates change when the barycentric coodinates change of at least one thermal source.
Such as, see Fig. 6, when the distance of two thermals source diminishes, barycentric coodinates change.As two people are initially sitting in the diverse location (differing more than 1 meter) of sofa, after a while two people sit near after chat.
Again such as, see Fig. 7, when the distance of two thermals source becomes large, barycentric coodinates change.As two people are initially sitting in the closer distance of sofa, two people's seats is distant after a while, or wherein a people leaves.
S410: judge whether the sweep limits after reducing is greater than default short scan, if so, repeats S408 and subsequent step thereof, otherwise, perform S411.
Such as, the short scan preset is: scanning angle is 1.2*Ang, when the scanning angle after reducing is greater than 1.2*Ang, if barycentric coodinates do not change, then can continue to reduce sweep limits.
S411: the sweep limits keeping infrared sensor array is minimum sweep limits.
Such as, when the scanning angle after reducing is less than 1.2*Ang, if barycentric coodinates do not change, then scanning angle is kept to be 1.2*Ang.
S412: the time judging whether to arrive again whole scan, if so, repeats S403 and subsequent step thereof, otherwise repeats S408 and subsequent step thereof.
Wherein, can cycle of equipment whole scan in advance, such as, carry out a whole scan every 3 minutes or 5 minutes, when the time of distance whole scan last time exceedes the cycle time of default whole scan, then arrive again the time of whole scan.
In addition, when keeping scanning angle to be minimum sweep limits, the sweep limits after the correspondence in S409 reduces specifically refers to the minimum sweep limits of maintenance.
In addition, the present embodiment judges whether to arrive the whole scan time after narrowing down to minimum sweep limits, can also be judge whether to arrive the whole scan time after reducing sweep limits at every turn, or judge to judge whether after whether center of gravity changes to arrive the whole scan time etc. at every turn.
S413: judge whether to occur newly-increased thermal source, if so, repeat S403 and subsequent step thereof, otherwise, perform S414.
Wherein, heating source area changes and can cause by newly-increased thermal source; Such as, or also can be cause after original hot source status changes, after people kicks quilt son, heating source area becomes large, the present embodiment may be used for kicking quilt son and detects thus control air supply direction, avoids user to catch a cold.
Concrete, can according to the location distribution information of the positional information determination thermal source of thermal source, the number of thermal source can be determined according to location distribution information, such as, that thermal source takies first area and second area according to location distribution information, if the position difference between first area and second area is in preset range, a thermal source can be thought, otherwise be two thermals source.
According to the number of the thermal source detected during different scanning process, can determine whether to occur newly-increased thermal source, such as, when thermal source number increases, show to occur newly-increased thermal source.
S414: judge whether current sweep limits is whole scan scope, if so, repeats S403 and subsequent step thereof, otherwise, perform S415.
S415: the sweep limits of amplifying infrared sensor array.
The scope of each amplification also can pre-set.
S416: the scanning angle after corresponding amplification, multiple scanning preset times, and the barycentric coodinates redefining thermal source when each scanning, and judge whether barycentric coodinates change, if so, repeat S403 and subsequent step thereof, otherwise, perform S408 and subsequent step thereof.
The detection of concrete barycentric coodinates see above-mentioned related content, can not repeat them here.
The present embodiment, by adopting low pixel infrared sensor array, can reduce costs, and in addition, the present embodiment drives infrared sensor array to carry out whole scan by transmission mechanism, can reduce movable thermal source and lose.In addition, the present embodiment, by the sweep limits of adjustment infrared sensor array, can adapt to different actual conditions, reduce costs.
Fig. 8 is the structural representation of the air conditioning control device based on human detection that another embodiment of the present invention proposes, this device can specifically air-conditioning master control unit, this device 80 comprises the first control module 801, receiver module 802, first determination module 803 and adjusting module 804.
First control module 801, for opening air-conditioning user and after enabling human detection function, controlling transmission mechanism and bring into operation, drives infrared sensor array to carry out whole scan to make described transmission mechanism;
Optionally, the infrared sensor array in the present embodiment can the infrared sensor array of specifically low pixel, such as, and the pixel composition of 20*1.
Wherein, whole scan scans in the maximum magnitude that infrared sensor array can scan.
Such as, see Fig. 3, infrared sensor array, under the drive of transmission mechanism, scans in the scope of the maximum angle preset at infrared sensor array, obtains the temperature value of indoor environment.
Receiver module 802, for receiving the temperature value that described infrared sensor array sends, and obtains room temperature layout value;
Infrared sensor array, when scanning, often can scan the temperature value that certain angle infrared sensor array detects this position, and send to air-conditioning master control unit.
The number of times of whole scan at least needs more than twice, such as, and a value in 5-10 time.
First determination module 803, for the difference determination thermal source according to described temperature value and ambient temperature threshold value, and determines the thermal source belonging to people in described thermal source, and belongs to the positional information of the thermal source of people described in obtaining;
According to the temperature value obtained after infrared sensor array whole scan, ambient temperature threshold value can be calculated, the mean value of all temperature values that ambient temperature threshold value such as obtains for each whole scan.
After obtaining ambient temperature threshold value, the difference scanning each temperature value and the ambient temperature threshold value obtained can be calculated, if this difference is greater than default threshold value, then this temperature value is the temperature value of thermal source, such as, ambient temperature threshold value is 10 degree, and default threshold value is 2 degree, then the temperature value being greater than 12 degree is the temperature value of thermal source.
Further, after obtaining the temperature value of thermal source, can determine the thermal source belonging to people according to preset rules, preset rules is such as according to characteristics of human body's information or the area etc. that takies according to thermal source.Such as, when infrared sensor array whole scan, air-conditioning master control unit can determine current positional information, infrared sensor array can obtain temperature value and report air-conditioning master control unit, therefore, air-conditioning master control unit can obtain the positional information of temperature value and correspondence, after obtaining thermal source, the positional information corresponding according to thermal source can determine the area of thermal source, if this area is greater than default human body thermal source area features, can determine that this thermal source is the thermal source belonging to people, and according to the positional information obtained before air-conditioning master control unit, the positional information of the thermal source belonging to people can be obtained.
Positional information can comprise: barycentric coodinates and Derivative limit on the left or on the right coordinate, and coordinate can by the relative coordinate of relative air-conditioner position.
Barycentric coodinates can represent with (Gx, Gy), and limit on the left coordinate Xmin represents, limit on the right-right-hand limit coordinate Xmax represents.Wherein, Derivative limit on the left or on the right coordinate represents the coordinate of thermal source leftmost side point and the coordinate of rightmost side point respectively, barycentric coodinates can to thermal source positional information a little calculate rear acquisition, such as, Gx be thermal source the mean value that is worth a little in the x direction, Gy be thermal source the mean value that is worth a little in y-direction.Be understandable that, the calculating of barycentric coodinates also can adopt other conventional account forms, such as, get median or weighted average etc.
Adjusting module 804, for belonging to the positional information of the thermal source of people described in basis, carries out partial sweep, and determines to continue to reduce the area of partial sweep after the center of gravity of described thermal source does not change until scan with the minimum scan area preset at partial sweep.
In another embodiment, see Fig. 9, this adjusting module 804 comprises:
Second determination module 805, for determining the area of described thermal source according to described positional information;
Wherein, the positional information of a thermal source during each whole scan, can be obtained, the formed shape of thermal source can be determined according to positional information, then the area of shape can be determined according to the positional information of respective point in shape.
First judge module 806, for judging whether the area of described thermal source changes;
By the area determined during whole scan that comparison is different, can judge whether heating source area changes.
Second control module 807, if for not change, control the operation of described transmission mechanism, drive described infrared sensor array to carry out the partial sweep of preset times to make described transmission mechanism according to described positional information;
Such as, the limit coordinate of the thermal source determined is Xmin and Xmax respectively, suppose that the angle that horizontally rotates corresponding between Xmin and Xmax is Ang, see Fig. 5, the maximum scan angle of the scanning angle of infrared sensor array from the overall situation can be reduced, set when design parameter is dispatched from the factory by producer, during as reduced for the first time, 2.5*Ang can be adjusted to, the level of corresponding wind guide strip sweep wind angle for (Xmin+Xmax)/2 for horizontal center point, sweep wind in each 1.25*Ang angular range in left and right.Follow-up adjustment angle rule all performs by this rule, and the angle value at every turn reduced can pre-set.
Second judge module 808, for judging according to the result of partial sweep whether the center of gravity of described thermal source changes;
Such as, after scanning angle is adjusted to 2.5*Ang, the scanning angle can carrying out repeatedly (as 3 times) is the multiple scanning of 2.5*Ang, and obtain the barycentric coodinates of thermal source when each scanning, and judge whether barycentric coodinates change by the result of comparison repeatedly (as 3 times).
The number of thermal source can be one or more, when for time multiple, can go out the barycentric coodinates of each thermal source according to positional information calculation.Then show that barycentric coodinates change when the barycentric coodinates change of at least one thermal source.
Such as, see Fig. 6, when the distance of two thermals source diminishes, barycentric coodinates change.As two people are initially sitting in the diverse location (differing more than 1 meter) of sofa, after a while two people sit near after chat.
Again such as, see Fig. 7, when the distance of two thermals source becomes large, barycentric coodinates change.As two people are initially sitting in the closer distance of sofa, two people's seats is distant after a while, or wherein a people leaves.
3rd control module 809, if for not change, control the operation of described transmission mechanism, drive described infrared sensor array again to reduce scan area until reach default minimum scan area to make described transmission mechanism.
Such as, the short scan preset is: scanning angle is 1.2*Ang, when the scanning angle after reducing is greater than 1.2*Ang, if barycentric coodinates do not change, then can continue to reduce sweep limits.
When the scanning angle after reducing is less than 1.2*Ang, if barycentric coodinates do not change, then scanning angle is kept to be 1.2*Ang.
In another embodiment, see Fig. 9, this device 80 also comprises:
3rd judge module 810, if changed for the area of thermal source, judges whether to occur newly-increased thermal source;
Wherein, heating source area changes and can cause by newly-increased thermal source; Such as, or also can be cause after original hot source status changes, after people kicks quilt son, heating source area becomes large, the present embodiment may be used for kicking quilt son and detects thus control air supply direction, avoids user to catch a cold.
Concrete, can according to the location distribution information of the positional information determination thermal source of thermal source, the number of thermal source can be determined according to location distribution information, such as, that thermal source takies first area and second area according to location distribution information, if the position difference between first area and second area is in preset range, a thermal source can be thought, otherwise be two thermals source.
According to the number of the thermal source detected during different scanning process, can determine whether to occur newly-increased thermal source, such as, when thermal source number increases, show to occur newly-increased thermal source.
4th control module 811, for if there is newly-increased thermal source, controls the operation of described transmission mechanism, drives described infrared sensor array to re-start whole scan to make described transmission mechanism.
In another embodiment, see Fig. 9, this device 80 also comprises:
5th control module 812, if for there is not newly-increased thermal source, or, judge that the center of gravity of described thermal source changes according to the result of partial sweep, control the operation of described transmission mechanism, drive described infrared sensor array to expand scan area to make described transmission mechanism.
The scope of each amplification also can pre-set.
In another embodiment, see Fig. 9, this device 80 also comprises:
4th judge module 813, for judging whether to arrive again the time of whole scan;
Wherein, can cycle of equipment whole scan in advance, such as, carry out a whole scan every 3 minutes or 5 minutes, when the time of distance whole scan last time exceedes the cycle time of default whole scan, then arrive again the time of whole scan.
6th control module 814, if for arriving, controlling the operation of described transmission mechanism, driving described infrared sensor array to re-start whole scan to make described transmission mechanism.
In another embodiment, see Fig. 9, this device 80 also comprises:
7th control module 815, for belonging to the positional information of the thermal source of people described in basis, carries out at least one item in following item: the air supply direction controlling wind guide strip; Control the air output of wind guide strip; Control temperature value.
To control to be according to positional information adjustment air supply direction, people's pattern can be kept away according to the wind people pattern selected in advance or wind, air supply direction is adjusted to the position towards the thermal source belonging to people, or avoid the position of the thermal source belonging to people.
Such as, when selecting wind people's pattern, the positional information belonging to the thermal source of people comprises: Xmin and Xmax, then the air supply direction of wind guide strip can be between (Xmin-first preset value) and (Xmax+ second preset value), wherein, the first preset value can be identical or different with the second preset value.
The present embodiment, by adopting low pixel infrared sensor array, can reduce costs, and in addition, the present embodiment drives infrared sensor array to carry out whole scan by transmission mechanism, can reduce movable thermal source and lose.
It should be noted that, in describing the invention, term " first ", " second " etc. only for describing object, and can not be interpreted as instruction or hint relative importance.In addition, in describing the invention, except as otherwise noted, the implication of " multiple " is two or more.
Describe and can be understood in flow chart or in this any process otherwise described or method, represent and comprise one or more for realizing the module of the code of the executable instruction of the step of specific logical function or process, fragment or part, and the scope of the preferred embodiment of the present invention comprises other realization, wherein can not according to order that is shown or that discuss, comprise according to involved function by the mode while of basic or by contrary order, carry out n-back test, this should understand by embodiments of the invention person of ordinary skill in the field.
Should be appreciated that each several part of the present invention can realize with hardware, software, firmware or their combination.In the above-described embodiment, multiple step or method can with to store in memory and the software performed by suitable instruction execution system or firmware realize.Such as, if realized with hardware, the same in another embodiment, can realize by any one in following technology well known in the art or their combination: the discrete logic with the logic gates for realizing logic function to data-signal, there is the special IC of suitable combinational logic gate circuit, programmable gate array (PGA), field programmable gate array (FPGA) etc.
Those skilled in the art are appreciated that realizing all or part of step that above-described embodiment method carries is that the hardware that can carry out instruction relevant by program completes, described program can be stored in a kind of computer-readable recording medium, this program perform time, step comprising embodiment of the method one or a combination set of.
In addition, each functional unit in each embodiment of the present invention can be integrated in a processing module, also can be that the independent physics of unit exists, also can be integrated in a module by two or more unit.Above-mentioned integrated module both can adopt the form of hardware to realize, and the form of software function module also can be adopted to realize.If described integrated module using the form of software function module realize and as independently production marketing or use time, also can be stored in a computer read/write memory medium.
The above-mentioned storage medium mentioned can be read-only storage, disk or CD etc.
In the description of this description, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present invention or example.In this manual, identical embodiment or example are not necessarily referred to the schematic representation of above-mentioned term.And the specific features of description, structure, material or feature can combine in an appropriate manner in any one or more embodiment or example.
Although illustrate and describe embodiments of the invention above, be understandable that, above-described embodiment is exemplary, can not be interpreted as limitation of the present invention, and those of ordinary skill in the art can change above-described embodiment within the scope of the invention, revises, replace and modification.
Claims (15)
1. based on an air conditioning control method for human detection, it is characterized in that, comprising:
After user opens air-conditioning and enables human detection function, control transmission mechanism and bring into operation, to make described transmission mechanism drive infrared sensor array to carry out whole scan, obtain room temperature layout value;
According to the difference determination thermal source of described room temperature layout value and ambient temperature threshold value, and in described thermal source, determine the thermal source belonging to people, and belong to the positional information of the thermal source of people described in obtaining;
According to the described positional information belonging to the thermal source of people, carry out partial sweep, and determine to continue to reduce the area of partial sweep after the center of gravity of described thermal source does not change until scan with the minimum scan area preset at partial sweep.
2. method according to claim 1, is characterized in that, described in carry out partial sweep, and determine to continue to reduce after described positional information does not change the area of partial sweep until scan with the minimum scan area preset at partial sweep, comprising:
The area of described thermal source is determined according to described positional information;
Judge whether the area of described thermal source changes;
If change, does not control the operation of described transmission mechanism, drives described infrared sensor array to carry out the partial sweep of preset times to make described transmission mechanism according to described positional information;
Judge whether the center of gravity of described thermal source changes according to the result of partial sweep;
If change, does not control the operation of described transmission mechanism, drives described infrared sensor array again to reduce scan area until reach default minimum scan area to make described transmission mechanism.
3. method according to claim 2, is characterized in that, described judge whether the area of described thermal source changes after, described method also comprises:
If the area of thermal source changes, judge whether to occur newly-increased thermal source;
If there is newly-increased thermal source, control the operation of described transmission mechanism, drive described infrared sensor array to re-start whole scan to make described transmission mechanism.
4. method according to claim 3, is characterized in that, also comprises:
If there is not newly-increased thermal source, or, judge that the center of gravity of described thermal source changes according to the result of partial sweep, control the operation of described transmission mechanism, drive described infrared sensor array to expand scan area to make described transmission mechanism.
5. method according to claim 2, is characterized in that, also comprises:
Judge whether to arrive again the time of whole scan;
If arrived, control the operation of described transmission mechanism, drive described infrared sensor array to re-start whole scan to make described transmission mechanism.
6. method according to claim 1, is characterized in that, after belonging to the positional information of the thermal source of people described in described basis, described method also comprises:
According to the described positional information belonging to the thermal source of people, carry out at least one item in following item:
Control the air supply direction of wind guide strip;
Control the air output of wind guide strip;
Control temperature value.
7. the method according to any one of claim 1-6, is characterized in that, described infrared sensor array is the infrared sensor array of low pixel.
8. based on an air conditioning control device for human detection, it is characterized in that, comprising:
First control module, for opening air-conditioning user and after enabling human detection function, controlling transmission mechanism and bring into operation, drives infrared sensor array to carry out whole scan to make described transmission mechanism;
Receiver module, for receiving the temperature value that described infrared sensor array sends, and obtain room temperature layout and be worth the first determination module, for the difference determination thermal source according to described room temperature layout value and ambient temperature threshold value, and in described thermal source, determine the thermal source belonging to people, and belong to the positional information of the thermal source of people described in obtaining;
Adjusting module, for belonging to the positional information of the thermal source of people described in basis, carries out partial sweep, and determines to continue to reduce the area of partial sweep after the center of gravity of described thermal source does not change until scan with the minimum scan area preset at partial sweep.
9. device according to claim 8, is characterized in that, described adjusting module, comprising:
Second determination module, for determining the area of described thermal source according to described positional information;
First judge module, for judging whether the area of described thermal source changes;
Second control module, if for not change, control the operation of described transmission mechanism, drive described infrared sensor array to carry out the partial sweep of preset times to make described transmission mechanism according to described positional information;
Second judge module, for judging according to the result of partial sweep whether the center of gravity of described thermal source changes;
3rd control module, if for not change, control the operation of described transmission mechanism, drive described infrared sensor array again to reduce scan area until reach default minimum scan area to make described transmission mechanism.
10. device according to claim 9, is characterized in that, also comprises:
3rd judge module, if changed for the area of thermal source, judges whether to occur newly-increased thermal source;
4th control module, for if there is newly-increased thermal source, controls the operation of described transmission mechanism, drives described infrared sensor array to re-start whole scan to make described transmission mechanism.
11. devices according to claim 10, is characterized in that, also comprise:
5th control module, if for there is not newly-increased thermal source, or, judge that the center of gravity of described thermal source changes according to the result of partial sweep, control the operation of described transmission mechanism, drive described infrared sensor array to expand scan area to make described transmission mechanism.
12. devices according to claim 9, is characterized in that, also comprise:
4th judge module, for judging whether to arrive again the time of whole scan;
6th control module, if for arriving, controlling the operation of described transmission mechanism, driving described infrared sensor array to re-start whole scan to make described transmission mechanism.
13. devices according to claim 8, is characterized in that, also comprise:
7th control module, for belonging to the positional information of the thermal source of people described in basis, carry out at least one item in following item:
Control the air supply direction of wind guide strip;
Control the air output of wind guide strip;
Control temperature value.
14. devices according to Claim 8 described in-13 any one, it is characterized in that, described infrared sensor array is the infrared sensor array of low pixel.
15. 1 kinds based on the air-conditioner control system of human detection, is characterized in that, comprising:
Infrared sensor array, described infrared sensor array is used for the temperature value gathered when scanning in indoor environment;
Transmission mechanism, is connected with described infrared sensor array, carries out scanning position adjustment for driving described infrared sensor array;
Air-conditioning master control unit, be the device as described in any one of claim 8-14, be connected with described infrared sensor array and described transmission mechanism, for obtaining the temperature value that described infrared sensor array gathers, and obtain room temperature layout value, and control the operation of described transmission mechanism.
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