CN105972765A - Intelligent air conditioner and temperature regulation method thereof - Google Patents

Intelligent air conditioner and temperature regulation method thereof Download PDF

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Publication number
CN105972765A
CN105972765A CN201610357437.XA CN201610357437A CN105972765A CN 105972765 A CN105972765 A CN 105972765A CN 201610357437 A CN201610357437 A CN 201610357437A CN 105972765 A CN105972765 A CN 105972765A
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target
temperature
image
ambient
background area
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CN201610357437.XA
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CN105972765B (en
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宋展
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深圳先进技术研究院
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00Control inputs relating to air properties
    • F24F2110/10Temperature
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/30Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01JMEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED, VISIBLE OR ULTRA-VIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J5/00Radiation pyrometry

Abstract

The invention provides an intelligent air conditioner. The intelligent air conditioner comprises a main unit, a thermal imaging module and an image processing module. The thermal imaging module is used for obtaining an environment thermal image. The image processing module is connected with the thermal imaging module and used for processing the received environment thermal image to obtain environment parameters. The main unit is connected with the image processing module and used for regulating the temperature, the air volume and the air outlet direction according to the environment parameters. The invention further provides a temperature regulation method of the intelligent air conditioner. The temperature regulation method comprises the steps that firstly, the environment thermal image is obtained through the thermal imaging module; secondly, the environment thermal image is processed through the image processing module, so that the environment parameters are obtained; and thirdly, the main unit regulates the temperature, the air volume and the air outlet direction according to the environment parameters, so that intelligent temperature regulation is achieved, the comfort of a user is improved, and meanwhile, the purpose of saving energy is achieved. In addition, real-time monitoring and early warning of an abnormal heat source can be achieved, and thus risks are effectively avoided.

Description

A kind of intelligent air condition and temperature control method thereof
Technical field
The present invention relates to intelligent air-conditioning system, particularly relate to a kind of intelligent air condition and temperature control method thereof.
Background technology
Along with development, the raising of people's living standard of society, air-conditioning becomes indispensable in people's daily life One of few electrical equipment, a lot of manufacturers are devoted to develop more intelligent to pursue the bigger market space always Air-conditioning.
At present, overwhelming majority intelligent air condition mainly uses techniques below 1) by the built-in temperature sensor of air-conditioning, Variations in temperature near perception air-conditioning, the duty of regulation air-conditioning, can reach energy-conservation to a certain extent Purpose;2) by infrared measurement of temperature chip, in conjunction with moving sweep device, can realize to external world that environment field is substantially The judgement of Temperature Distribution;3) scene analysis method based on visible image capturing head, can by implanting in air-conditioning See light video camera head, realized detection and the Distance positioning substantially of human body target by human detection and identification technology, Realize intelligentized orientation air-supply.But, lacked integrated environment temperature by the temperature sensor that air-conditioning is built-in The information of degree distribution and target body judges, therefore Consumer's Experience bad;Can only by infrared measurement of temperature chip Realize the temperature information collection of single-point, and the restriction of the reflected modular power of its operating distance, it is difficult to solve The problem such as block, it is also difficult to realize the global analysis to whole ambient temperature field distribution, and take the photograph based on visible ray As the scene analysis method of head cannot obtain temperature information accurately, visible image capturing is installed on air-conditioning simultaneously Head also can cause the psychological resentment of user.
Summary of the invention
In order to solve the problems referred to above, intelligent air condition and temperature control method thereof that the present invention proposes can be real-time Analyze the information such as the personnel state in room, Temperature Distribution, target location, thus realize intelligentized temperature Regulation, the most i.e. can improve the comfort level of user, reaches again energy-conservation purpose, also to abnormal hot simultaneously Source is monitored.
The concrete technical scheme that the present invention proposes is: provide a kind of intelligent air condition, including main frame, thermal imaging mould Block and image processing module;Described thermal imaging module is used for obtaining ambient heat image;Described image procossing mould Block is connected with described thermal imaging module, obtains environment ginseng for the described ambient heat image received carries out process Number;Described main frame is connected with described image processing module, for regulating temperature according to described ambient parameter, go out Wind size and air-out direction.
Further, described ambient heat image includes the heat picture of target body and the heat picture of background area; Described ambient parameter includes the heat picture of the orientation of target body, the distance of target body and background area Temperature distribution information;Described main frame regulates air-out direction, according to institute for the orientation according to described target body State the distance regulation air-out size of target body and the Temperature Distribution letter of the heat picture according to described background area Breath regulation temperature.
Wind speed regulation unit that further, described main frame includes being connected with described image processing module respectively, Wind direction regulation unit and thermostat unit;Described wind speed regulation unit is used for regulating air-out size, described Wind direction regulation unit is used for regulating air-out direction, and described thermostat unit is for controlling the height of temperature.
Further, described image processing module includes being sequentially connected with pretreatment unit, detector unit and Computing unit;Described pretreatment unit is for carrying out pretreatment, described detector unit to described ambient heat image For detecting the head zone of target body, the torso area of target body in pretreated ambient heat image And background area, described computing unit is for obtaining target respectively according to the head zone of described target body The orientation of human body, the distance of target body and according to the heat picture of acquisition background area, described background area Temperature distribution information.
Further, described detector unit includes alarm, and described detector unit is provided with temperature threshold, described For there is temperature in described detector unit detects described background area higher than described temperature threshold in alarm Region time sound a buzzer.
The present invention also provides for the temperature control method of a kind of intelligent air condition described above, and described method includes following Step:
Thermal imaging module obtain ambient heat image, described ambient heat image include target body heat picture and The heat picture of background area;
Image processing module receives described ambient heat figure and described ambient heat image is carried out process obtains environment Parameter;
Main frame receives described ambient parameter and according to described ambient parameter regulation temperature, air-out direction and air-out Size.
Further, described ambient parameter includes the orientation of target body, the distance of target body and background The temperature distribution information of the heat picture in region, is provided with temperature threshold in described image processing module;Image procossing Module receives described ambient heat figure and described ambient heat image carries out process obtains ambient parameter and specifically wrap Include:
Described ambient heat image is filtered;
Filtered ambient heat image is carried out detection and obtains the head zone of target body, the body of target body Dry region and background area;
Judge the region that whether there is temperature in described background area higher than described temperature threshold, if existing, report Alert device is sounded a buzzer, if not existing, then performs next step;
Head zone according to described target body obtain respectively the orientation of target body and target body away from From, according to the temperature distribution information of the heat picture of acquisition background area, described background area.
Further, the concrete steps in the orientation of target body are obtained according to the head zone of described target body Including:
Obtain the central point of the described head zone positional information in described ambient heat image;
According to vertically regarding of described positional information, the size of described ambient heat image and described thermal imaging module Angle calculates the Vertical Square parallactic angle of target body;
Level according to described positional information, the size of described ambient heat image and described thermal imaging module regards Angle calculates the horizontal azimuth of target body.
Further, the concrete steps of the distance of target body are obtained according to the head zone of described target body Including:
Calculate different human body distance and the size in human body head region corresponding to different horizontal azimuths, Obtaining about horizontal azimuth, human body distance and the sampled data of head zone, wherein, human body distance is Distance between central point and the described thermal imaging module of the head zone of human body;
According to described sampled data, the horizontal azimuth of described target body and the head of described target body Region draws the distance of described target body.
Further, main frame receives described ambient parameter big according to described ambient parameter regulation temperature, air-out Little and air-out direction concrete steps include
Main frame regulates temperature according to the temperature distribution information of the heat picture of described background area, according to described target The orientation of human body regulates air-out direction and the distance according to described target body regulates air-out size.
The intelligent air condition of present invention proposition and temperature control method thereof, obtain environment thermal map by thermal imaging module Picture, then by image processing module process obtain ambient parameter, main frame further according to ambient parameter regulate temperature, Air-out direction and air-out size, it is achieved intelligentized temperature regulates, and improves user comfort level, simultaneously Reach energy-conservation purpose, and, abnormal thermal source can also be monitored and early warning by the present invention in real time, has Effect avoids the generation of danger.
Accompanying drawing explanation
By combining the following description that accompanying drawing is carried out, above and other aspect of embodiments of the invention, feature Will become clearer from advantage, in accompanying drawing:
Fig. 1 is intelligent air condition module diagram;
Fig. 2 is the temperature control method schematic flow sheet of intelligent air condition;
Fig. 3 is the schematic flow sheet of step S2;
Fig. 4 is the Vertical Square parallactic angle schematic diagram of target body;
Fig. 5 is horizontal azimuth, human body distance and the sampled data distribution schematic diagram of head zone.
Detailed description of the invention
Hereinafter, with reference to the accompanying drawings to describe embodiments of the invention in detail.However, it is possible to it is different with many Form implements the present invention, and the present invention should not be construed as limited to the specific embodiment that illustrates here. On the contrary, it is provided that these embodiments are to explain the principle of the present invention and actual application thereof, so that this area Others skilled in the art it will be appreciated that various embodiments of the present invention and be suitable for the various of specific intended application and repair Change.
With reference to Fig. 1, the present embodiment provides a kind of intelligent air condition, including main frame 10, thermal imaging module 20 and Image processing module 30.Described intelligent air condition obtains ambient heat image by thermal imaging module 20, then passes through Image processing module 30 processes the positional information obtaining target body to ambient heat image, further according to target The positional information of human body regulates air-out direction and air-out size, in combination with background area by main frame 10 Heat picture information regulates temperature, thus realizes the regulation of intelligentized temperature, improves user comfort level, Reached energy-conservation purpose simultaneously.Wherein, the intelligent air condition in the present embodiment both can be wall-hanging air conditioner, Can also be vertical air conditioner, image processing module 30 can be realized by hardware mode, it is also possible to by intelligence The operating system of air-conditioning self realizes in a software form.
Concrete, thermal imaging module 20 for example, thermal infrared imager, thermal imaging module 20 receives in environment each Infrared ray that individual object sends also generates corresponding ambient heat image, be can be seen that by ambient heat image The Temperature Distribution of each object in environment, ambient heat image here include target body heat picture and The heat picture of background area.In actual mechanical process, thermal imaging module 20 is before receiving ambient heat image Need its spatial parameter is set, can according to actual needs before dispatching from the factory to thermal imaging module 20 Spatial parameter is set.Intelligent air condition in the present embodiment includes a thermal imaging module 20, real at other Execute in example, in order to obtain target body information more accurately, multiple heat can be used according to actual needs Image-forming module 20 obtains target body information based on principle of stereoscopic vision.
Image processing module 30 is connected with thermal imaging module 20, to the ambient heat image received Reason obtain ambient parameter, wherein, ambient parameter include the orientation of target body, the distance of target body and The temperature distribution information of the heat picture of background area.Image processing module 30 includes the pretreatment list being sequentially connected with Unit 31, detector unit 32 and computing unit 33;Pretreatment unit 31 is connected with thermal imaging module 20, For the ambient heat image received is carried out pretreatment, ambient heat image is mainly filtered by pretreatment, Can be removed the noise of ambient heat image by filtering, secondly, pretreatment also includes the ambient heat after denoising Image strengthens, and in actual process, pretreatment unit 31 is firstly the need of to the environment thermal map received As carrying out image flame detection, use general image correction method.
Detector unit 32 is for detecting the head zone of target body, target in pretreated ambient heat image The torso area of human body and background area.Detector unit 32 is provided with for detecting target body header area The first temperature threshold interval T1 in territory and for detecting the second temperature threshold phase of the torso area of target body Between T2, such as, T1 is 35 °~36 °, and T2 is 30 °~32 °.When detector unit 32 detects ambient heat image When the subregional Temperature Distribution in middle part belongs to T1, then this region belongs to the head zone of target body;Work as detection Unit 32 detects that when subregional Temperature Distribution belongs to T2 in the middle part of ambient heat image, then this region belongs to mesh The torso area of mark human body, after determining the torso area of the head zone of target body, target body, the back of the body Scene area is outside the torso area removing the head zone of target body, target body in ambient heat image Region.
In order to monitor abnormal thermal source in real time and early warning, detector unit 32 includes alarm 320, Detector unit 32 is provided with temperature threshold, there is temperature higher than temperature when detector unit 32 detects in background area When spending the region of threshold value, alarm 320 is sounded a buzzer for reminding user, effectively prevent sending out of danger Raw.
Computing unit 33 for obtain respectively according to the head zone of described target body target body orientation, The distance of target body, meanwhile, computing unit 33 is additionally operable to the thermal map according to acquisition background area, background area The temperature distribution information of picture.Main frame 10 is connected with computing unit 33, adjusts for the orientation according to target body Joint air-out direction realizes orientation air-out and the distance according to target body regulates air-out size and realizes quantifying Wind, in addition, main frame 10 is additionally operable to the temperature distribution information regulation temperature of the heat picture according to background area Realizing energy-conservation purpose, such as, in the case of in background area, number is relatively more, temperature is turned down by main frame 10; In background area fewer in number in the case of, temperature is heightened by main frame 10 relatively.
Concrete, main frame 10 include the wind speed being connected with described image processing module 30 respectively regulate unit 11, Wind direction regulation unit 12 and thermostat unit 13;Wind speed regulation unit 11 is used for regulating air-out size, Wind direction regulation unit 12 is used for regulating air-out direction, and thermostat unit 13 is for controlling the height of temperature.
With reference to Fig. 2, the present embodiment also provides for the temperature control method of a kind of intelligent air condition described above, described side Method comprises the following steps:
Step S1, thermal imaging module 20 obtain ambient heat image, and wherein, ambient heat image includes target body Heat picture and the heat picture of background area.
Step S2, image processing module 30 receive described ambient heat figure and to described ambient heat image at Reason obtain ambient parameter, wherein, ambient parameter include the orientation of target body, the distance of target body and The temperature distribution information of the heat picture of background area, is provided with temperature threshold in image processing module 30.
With reference to Fig. 3, step S2 specifically includes following steps:
S21, described ambient heat image carrying out pretreatment, wherein, pretreatment includes described ambient heat image Carry out image flame detection, filter and strengthen, such as, use smothing filtering to remove the noise of ambient heat image, Ambient heat image is strengthened to improve its contrast by the method using rectangular histogram stretching.
S22, pretreated ambient heat image is carried out detection obtain the head zone of target body, target person The torso area of body and background area, the head zone of target body is that in ambient heat image, Temperature Distribution belongs to In the region of T1, the torso area of target body is the region that in ambient heat image, Temperature Distribution belongs to T2, Background area be in ambient heat image remove the head zone of target body, target body torso area it Outer region.
In order to monitor abnormal thermal source in real time and early warning, step S2 also includes:
S23, judge whether described background area exists the temperature region higher than temperature threshold, if existing, then Alarm sounds a buzzer to remind user to there is abnormal thermal source, if not existing, then performs step S24;
S24, head zone according to target body obtain respectively the orientation of target body and target body away from From, according to the temperature distribution information of the heat picture of acquisition background area, described background area, add up background area The Temperature Distribution average of heat picture and mean square deviation, drawn the heat of background area by described average and mean square deviation The temperature distribution information of image, wherein, the orientation of target body include target body Vertical Square parallactic angle and Horizontal azimuth.
Concrete, in step S24, head zone according to target body obtains the orientation of target body and includes:
S241, obtain the central point of head zone of the target body positional information in described ambient heat image; Here the size of ambient heat image is represented by pixel, and wherein, W represents the lateral dimension of ambient heat image I.e. pixels across point sum, H represents longitudinal size the most longitudinal pixel sum of ambient heat image, with environment Heat picture central point is initial point, then may determine that the central point of the head zone of target body position coordinates (x, y);
S242, according to position coordinates (x, y), the longitudinal size H of ambient heat image and thermal imaging module The vertical angle of view θ of 20 calculates the vertical orientations angle beta of target body.
With reference to Fig. 4, the calculating process of vertical orientations angle beta is described below by instantiation.Thermal imaging module The optical center optical axis of 20 is horizontal direction and passes through ambient heat image center, and wherein vertical orientations angle beta is Angle between central point line and the optical center optical axis of the head zone of thermal imaging module and target body, D For the distance between thermal imaging module 20 and ambient heat image center, tan β=y/D can be drawn from figure, Tan (θ/2)=H/2D, then can derive vertical orientations angle beta=arctan (2y/H*tan (θ/2)).
S243, according to positional information (x, y), the lateral dimension W of ambient heat image and thermal imaging module The horizontal view angle γ of 20 calculates the horizontal azimuth ω of target body.The computational methods of horizontal azimuth ω are similar to In the computational methods of vertical orientations angle beta, horizontal azimuth can be drawn through calculating ω=arctan (2x/W*tan (γ/2)).
Concrete, in step S24, head zone according to target body obtains the distance of target body and includes:
S244, calculate different human body distance and human body head region corresponding to different horizontal azimuths Size, obtains about horizontal azimuth, human body distance and the sampled data of head zone, and human body distance is Distance between central point and the thermal imaging module 20 of the head zone of human body, as it is shown in figure 5, such as, heat The operating distance of image-forming module 20 is 5 meters, and the horizontal azimuth of thermal imaging module 20 is 80 °, first, people Body distance is 1 meter, and human body is according to level orientation angle 10 degree/time movement, after moving every time, and thermal imaging module 20 obtain Studies of Human Body Heat image and detect human body head region, calculate the heat picture area S of head zone, The most just 7 can be obtained about horizontal azimuth, human body distance and one group of sampled data of head zone; Then, human motion 20 centimetres, repeat the above steps, until human body distance is 5 meters, the most just can obtain One 20 × 7 about horizontal azimuth, human body distance and the sampled data matrix of head zone;
S245, according to the sampled data matrix in step S244, estimated and mesh by the method for interpolation calculation The distance of the target body that the head zone of the mark horizontal azimuth of human body and target body is corresponding.
Step S3, main frame 10 regulate air-out direction, distance according to target body according to the orientation of target body Regulation air-out size and the temperature distribution information regulation temperature of the heat picture according to background area.
The above is only the detailed description of the invention of the application, it is noted that common for the art For technical staff, on the premise of without departing from the application principle, it is also possible to make some improvements and modifications, These improvements and modifications also should be regarded as the protection domain of the application.

Claims (10)

1. an intelligent air condition, it is characterised in that include main frame, thermal imaging module and image processing module;
Described thermal imaging module is used for obtaining ambient heat image;
Described image processing module is connected with described thermal imaging module, for the described ambient heat image received Carry out process and obtain ambient parameter;
Described main frame is connected with described image processing module, for regulating temperature according to described ambient parameter, go out Wind size and air-out direction.
Intelligent air condition the most according to claim 1, it is characterised in that described ambient heat image includes mesh The heat picture of mark human body and the heat picture of background area;Described ambient parameter include target body orientation, The distance of target body and the temperature distribution information of the heat picture of background area;Described main frame is for according to institute State target body orientation regulation air-out direction, regulate according to the distance of described target body air-out size and The temperature distribution information regulation temperature of the heat picture according to described background area.
Intelligent air condition the most according to claim 1 and 2, it is characterised in that described main frame includes respectively Wind speed regulation unit, wind direction regulation unit and the thermostat unit being connected with described image processing module; Described wind speed regulation unit is used for regulating air-out size, and described wind direction regulation unit is used for regulating air-out direction, Described thermostat unit is for controlling the height of temperature.
Intelligent air condition the most according to claim 1, it is characterised in that described image processing module includes Pretreatment unit, detector unit and the computing unit being sequentially connected with;Described pretreatment unit is for described Ambient heat image carries out pretreatment, and described detector unit is used for detecting target in pretreated ambient heat image The head zone of human body, the torso area of target body and background area, described computing unit is used for basis The head zone of described target body obtain respectively the orientation of target body, the distance of target body and according to The temperature distribution information of the heat picture of acquisition background area, described background area.
Intelligent air condition the most according to claim 4, it is characterised in that described detector unit includes reporting to the police Device, described detector unit is provided with temperature threshold, and described alarm is described for detecting in described detector unit Sound a buzzer when background area existing temperature higher than the region of described temperature threshold.
6. the temperature control method of intelligent air condition as described in Claims 1 to 5 is arbitrary, it is characterised in that Said method comprising the steps of:
Thermal imaging module obtain ambient heat image, described ambient heat image include target body heat picture and The heat picture of background area;
Image processing module receives described ambient heat figure and described ambient heat image is carried out process obtains environment Parameter;
Main frame receives described ambient parameter and according to described ambient parameter regulation temperature, air-out direction and air-out Size.
Temperature control method the most according to claim 6, it is characterised in that described ambient parameter includes The temperature distribution information of the heat picture of the orientation of target body, the distance of target body and background area, institute State and image processing module is provided with temperature threshold;Image processing module receives described ambient heat figure and to described Ambient heat image carries out process and obtains ambient parameter and specifically include:
Described ambient heat image is filtered;
Filtered ambient heat image is carried out detection and obtains the head zone of target body, the body of target body Dry region and background area;
Judge the region that whether there is temperature in described background area higher than described temperature threshold, if existing, report Alert device is sounded a buzzer, if not existing, then performs next step;
Head zone according to described target body obtain respectively the orientation of target body and target body away from From, according to the temperature distribution information of the heat picture of acquisition background area, described background area.
Temperature control method the most according to claim 7, it is characterised in that according to described target body Head zone obtain the concrete steps in orientation of target body and include:
Obtain the central point of the described head zone positional information in described ambient heat image;
According to vertically regarding of described positional information, the size of described ambient heat image and described thermal imaging module Angle calculates the Vertical Square parallactic angle of target body;
Level according to described positional information, the size of described ambient heat image and described thermal imaging module regards Angle calculates the horizontal azimuth of target body.
Temperature control method the most according to claim 7, it is characterised in that according to described target body Head zone obtain the concrete steps of distance of target body and include:
Calculate different human body distance and the size in human body head region corresponding to different horizontal azimuths, Obtaining about horizontal azimuth, human body distance and the sampled data of head zone, wherein, human body distance is Distance between central point and the described thermal imaging module of the head zone of human body;
According to described sampled data, the horizontal azimuth of described target body and the head of described target body Region draws the distance of described target body.
Temperature control method the most according to claim 9, it is characterised in that main frame receives described ring Border parameter the concrete steps according to described ambient parameter regulation temperature, air-out size and air-out direction include:
Main frame regulates temperature according to the temperature distribution information of the heat picture of described background area, according to described target The orientation of human body regulates air-out direction and the distance according to described target body regulates air-out size.
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CN109631271A (en) * 2018-12-29 2019-04-16 青岛海尔空调器有限总公司 Control method, device, storage medium and the computer equipment of air-conditioning
CN109631271B (en) * 2018-12-29 2021-03-16 青岛海尔空调器有限总公司 Control method and device of air conditioner, storage medium and computer equipment

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