CN101490479A - Air conditioner - Google Patents
Air conditioner Download PDFInfo
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- CN101490479A CN101490479A CNA2007800258990A CN200780025899A CN101490479A CN 101490479 A CN101490479 A CN 101490479A CN A2007800258990 A CNA2007800258990 A CN A2007800258990A CN 200780025899 A CN200780025899 A CN 200780025899A CN 101490479 A CN101490479 A CN 101490479A
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- temperature
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- human body
- air conditioner
- detection
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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
- 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
- F24F11/46—Improving electric energy efficiency or saving
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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
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
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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
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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
Abstract
The invention provides an air conditioner. A control unit 101 installed in an indoor unit 10 makes a thermopile 11 scan, allows it to scan a temperature detection covering range so as to overlap a partial region of the temperature detection range of the thermopile 11 and allows it to detect temperatures in a state with the partial region overlapped. Or the control unit 101 allows multiple thermopiles 11 to obtain temperature information in the temperature detection covering range at one time in such a manner that partial regions of the temperature detection ranges of the multiple thermopiles 11 are overlapped. The control unit 101 obtains temperature information by continuously or periodically carrying out the temperature detection, and based on the time variation of temperature information obtained, determines that a human exists when the variation exceeds the human body detection threshold value and determines where the human exists. Furthermore, based on the human body detection information, the control unit 101 increases a human body existence value, and decrease the human body existence value when the human body is not detected. When a human body existence value becomes less than the absence determination threshold value, the control unit 101 determines the absence of a human body only at a place where motion was detected last time.
Description
Technical field
The present invention relates to possess temperature detecting unit, carry out thermal source and detect and the existence of detection people, heat-producing device, and the air conditioner that can carry out comfortable control.
Background technology
In air conditioner in the past, knownly with lens the sensor portion of the temperature detecting unit that utilized thermoelectric pile equitemperature detecting element is carried out detection range and limits, while use a temperature detecting unit successively the switching temperature surveyed area in each zone by whether having the inexpensive method (for example with reference to patent documentation 1) of carrying out human detection greater than the variations in temperature of setting.
In addition, known stepping motor by will carrying out interrupted driving is as the motor that makes the temperature detecting unit scanning that has utilized a pyroelectric sensor and guarantee the infrared detection time fully, improve spatial resolution and temperature resolution thus, can the actual effect miniaturization, infra-red ray detection device (for example with reference to patent documentation 2) cheaply.
In addition, knownly use the corresponding respectively a plurality of thermoelectric pile elements that dispose in a plurality of zones that constitute with the living space is cut apart to measure the living space together rectangularly and obtain each regional temperature, utilize based on the variation of temperature amount with difference fiducial temperature that obtain by thermal resistor detect people in each zone /not human body detection device (for example with reference to patent documentation 3).
In addition, a plurality of zones of the scanning interior space are shown, utilization is changed by detected each the regional light quantity of temperature detecting unit (thermoelectric pile, pyroelectric sensor), and perhaps the light quantity in the surveyed area is under the above situation of certain threshold value, the method for human body (for example with reference to patent documentation 7).
In addition, knownly calculate variations in temperature at each section, in the big section of variations in temperature, be made as the people and move to come and carry out air-conditioning, with variations in temperature little but with on every side the stable significantly not mobile and static method (for example with reference to patent documentation 6) of section prediction adult of mensuration difference.
In addition, one side knownly make heat release the type infrared ray sensor to come and go scanning repeatedly the method (for example with reference to patent documentation 5) of relatively that variations in temperature is the big determining positions of the temperature of the last time by subject area and this temperature location of being grown up on one side.
In addition, illustrating not is temperature detecting unit, and uses illuminance transducer, only at the distinctive motion frequency of time-based human body, carries out the method (for example with reference to patent documentation 4) of human detection if the variable quantity of illumination surpasses a reference value.
Patent documentation 1: Japan's special fair 7-30938 communique (Fig. 8 ,～the 8 page of the 6th row of the 6th page of the 33rd row of specification)
Patent documentation 2: Japanese kokai publication hei 8-170930 communique (Fig. 1, Fig. 2, the 0015th, 0018 section)
Patent documentation 3: TOHKEMY 2001-304655 communique (Fig. 4, Fig. 7, the 0035th～0038 section)
Patent documentation 4: Japanese kokai publication hei 8-29541 communique (Fig. 2, the 0045th section)
Patent documentation 5: Japanese kokai publication hei 8-271645 communique (Fig. 1, the 0030th～0032 section)
Patent documentation 6: No. 2792997 communique of Japan Patent (Fig. 4, Fig. 5, the 4th page of the 29th row of specification～the 44 row)
Patent documentation 7: the special fair 6-75011 communique of Japan (Fig. 7, Fig. 9, the 11st page of the 38th row～the 42 row, the 13rd page of the 22nd row～24 row, the 14th page of the 45th row～46 row)
Summary of the invention
But, in the air conditioner in the past shown in the patent documentation 1, sensor portion in order to judge the human detection zone at temperature-detecting device possesses the switching mechanisms such as lens that detection range limits usefulness, but the price height of this mechanism, and also unrealistic concerning household appliances such as air conditioner.
In addition, in the air conditioner in the past shown in patent documentation 2,3 and 6, (boundary vicinity) reduce for detectability in the zone of the end of sensor characteristics between the detection zone of sensor, so might correctly detect high temperature during between this detection zone.Though beyond also existing near the central portion between the sensor detection zone that covering such as utilizing lens can correctly detect and the method for using as customed product generation funds, loses the advantage of the sensor that uses cheapness at each sensor.
And then, the air conditioner that can carry out the temperature detecting unit of human detection in illumination about having used not carries out under the situation of human detection, if environment temperature becomes near as the hot temperature of human body radiation 33 ℃, then be difficult to distinguish environment temperature and human body radiation heat and can't carry out human detection.
In addition, air conditioner carries out under the situation of human detection at the serviceability temperature detecting unit, is easy to noise to the equipment that generated heat etc. and carries out flase drop and survey.And then, survey if carry out flase drop, can't carry out then not judging that the flase drop that causes continuation that object is made as human body is surveyed and controlled the running of air-flow etc. lavishly, perhaps remains in operation, thereby consumes the electric power that need not.
In addition, in the air conditioner in the past shown in the patent documentation 7, become no thermal source countermeasure, and thermal source necessarily carries out the method that flase drop is surveyed.That is, near the object the human body temperature is surveyed by flase drop.In addition, survey if carry out a flase drop, then flase drop survey is afterwards continued.Therefore carry out mistakenly not judging.
In addition, and if also showed the elapsed time would be judged as not method, if but in whole room, carry out human detection by same procedure, then once more the thermal source flase drop is surveyed into human body, so carry out mistakenly not judging.
The present invention finishes in view of situation as described above, its purpose is to provide a kind of air conditioner, even part for the end in the detected object interval of the sensor that is difficult to obtain thermal information, also can utilize cheap temperature detecting unit detected temperatures correctly, and correctly carry out having or not of thermal source and judge and detection people's etc. existence, thereby carry out comfortable control.
Air conditioner of the present invention possesses: temperature detecting unit, and a scan edge temperature detection object range is detected temperatures on one side; The temperature detecting unit drive circuit, the actuation temperature detecting unit; And control part, control temperature detecting unit drive circuit, above-mentioned control part utilizes said temperature detecting unit drive circuit so that the mode of a part of area coincidence of the temperature detection scope of said temperature detecting unit scans, and makes above-mentioned a part of area coincidence and carry out temperature detection.
In addition, thermal source is meant herein, with the thermal source of heater general names such as human body, heat-producing device.
According to the present invention, even worsen and can't correctly detect the temperature detecting unit of the thermal source of this part in the accuracy of detection of the part place temperature of the end of temperature detection scope, so that the mode of a part of area coincidence of temperature detection scope scans, and make this part area coincidence carry out temperature detection, so can guarantee sufficient temperature detecting precision by the duplicate detection of temperature detection scope end.Thus, even the scope of deterioration also can not appear detecting in kinds such as non-selected high-precision sensor, detected temperatures and carry out thermal source and detect correctly.
Description of drawings
Fig. 1 is the key diagram that embodiments of the present invention 1 are shown.
Fig. 2 is the structure chart of the indoor set 10 in the embodiments of the present invention 1.
Fig. 3 is that the structure with the control part among Fig. 2 101 is the overall structure figure at center.
Fig. 4 illustrates the detection range of temperature detecting unit (thermoelectric pile) and the key diagram of inspection method.
Fig. 5 illustrates the key diagram that the detected temperatures of utilizing temperature detecting unit (thermoelectric pile) is carried out group areas.
Fig. 6 is the flow chart that the human body detecting method of embodiments of the present invention 1 is shown.
Fig. 7 is the flow chart that the continuation of Fig. 6 is shown
Label declaration
1 air conditioner
10 indoor sets
11 thermoelectric piles
12 thermal resistors
20 off-premises stations
21 thermal resistors
101 control parts
102 thermoelectric pile drive circuits
103 fan drive circuits
104 fan motors
105 fans
106 shutter drive circuits
107 shutter drive motors
108 shutters
109 thermoelectric pile drive motors
1003 comparing sections
1004 A/D transformation components
1005 temperature inversion portions
1006 body detecting part
1007 wind direction determination sections
1008 wind speed determination sections
1009 scanning direction determination sections
The specific embodiment
In following each embodiment, the part of stating " human body " as also can replace to " people " or " thermal source ".
Fig. 1 is the integrally-built key diagram that the air conditioner 1 of expression embodiments of the present invention 1 is shown.This air conditioner 1 is made of indoor set 10 and off-premises station 20.Indoor set 10 is except as indoor apparatus of air conditioner and the essential common equipment, also possesses thermoelectric pile (infrared ray sensor) 11 and as temperature detecting unit (temperature-detecting device).And, as the temperature measurement unit (temperature measuring apparatus) of the fiducial temperature that is used to measure thermoelectric pile 11, the cooling contact of thermal resistor 12 and thermoelectric pile 11 in abutting connection with and dispose.In addition, thermoelectric pile 11 also can be made of can detect the whole zone of above-mentioned air-conditioning preset range simultaneously a plurality of or a part that constitutes can detect air-conditioning preset range (the following detected object scope that also is called) regional or rectangularly.
On the other hand, off-premises station 20 possesses as the essential common equipment of air-conditioner outdoor unit, and possesses thermal resistor 21 and the outer temperature degree determination unit of conduct.In addition, also can replace above-mentioned thermal resistor 12,21, and utilize other temperature sensors.
Fig. 2 is the structure chart of the indoor set 10 in the embodiments of the present invention 1, indoor set 10 also possesses heat exchanger 13, thermoelectric pile drive circuit 102, thermoelectric pile drive motor 109, fan drive circuit 103, fan motor 104, fan 105, shutter drive circuit 106, shutter drive motor 107, shutter 108 etc. except thermoelectric pile 11, thermal resistor 12.In addition, under the situation that need not scanning calorimeter pile 11, need not thermoelectric pile drive circuit 102 and thermoelectric pile drive motor 109.In addition, statement " shutter " also can replace becoming " wind direction adjusting plate " or " flap ".
Fig. 3 is that the structure with the control part among Fig. 2 101 is the overall structure figure at center.In Fig. 3, control part 101 is made of comparing section 1003, A/D transformation component 1004, temperature inversion portion 1005, body detecting part 1006, wind direction determination section 1007, wind speed determination section 1008, scanning direction determination section 1009.Wherein, make under thermoelectric pile 11 scan condition need not, need not scanning direction determination section 1009.
In addition, afterwards, will comprise body detecting part 106 the detection heater /not the detecting unit general name, and be called the thermal source test section.
Next, the action to above-mentioned air conditioner 1 describes.The detected value of thermoelectric pile 11 with the regulation the interval or be taken into control part 101 via amplifying circuit 1001 continuously.In addition, the detected value of thermal resistor 12 (or measured value) becomes a reference value at the detected value of thermoelectric pile 11, with the regulation the interval or be taken into control part 101 via amplifying circuit 1002 continuously.
Comparing section 1003 will by thermoelectric pile 11 detected values with compare by thermal resistor 12 detected values, export that it is poor.This poor (potential difference) is transformed into data signal by A/D transformation component 1004.Temperature inversion portion 1005 is transformed into temperature information with the potential difference signal of numeral then.
Detecting under the situation of human body by body detecting part 1006,, then determining the direction (angle) of shutter 108 if wind direction determination section 1007 receives the human detection notification of information of the location of expression human body.Then, with the direction of the shutter 108 that determined as command value, control shutter drive circuit 106.Thus, send instruction from shutter drive circuit 106 to shutter drive motor 107, the direction of control shutter 108 as stepping motor.
In addition, detecting under the situation of human body,, then determining the wind speed (or rotary speed) of fan 105 if wind speed determination section 1008 receives the human detection notification of information by body detecting part 106.Then, with the wind speed that determined as command value, control fan drive circuit 103.Thus, send instruction from fan drive circuit 103 to fan motor 104, fan motor 104 makes fan 105 rotations with the rotary speed of and instruction value correspondence, sends wind from fan 105.
Similarly, even control part 101 is in basis and various heat-producing device corresponding threshold, thermal source is judged as under the situation of heat-producing devices such as computer server, also cools off this heat-producing device or carry out air-conditioning control can not stop owing to overheated according to predetermined setting.
In the air conditioner of present embodiment, control part 101 utilizes thermoelectric pile 11, detects the temperature of detected object scope termly.Only can detect at set thermoelectric pile 11 under the situation of a part of scope of detected object scope, control part 101 usefulness stepping motors drive and scanning calorimeter pile 11, at the spot check thermometric degree of each regulation, thus the temperature of the All Ranges of detection detected object scope.
In this case, control part 101 can carry out the mode of temperature detection respectively under the state that a part that makes thermoelectric pile 11 once carry out the scope of temperature detection overlaps successively, scans thermoelectric pile 11 as shown in Figure 4.State as the coincidence of the scope that can carry out temperature detection for example, is offset 1/2 of its scope at every turn and overlaps.In addition, determine appropriately that according to the precision of the temperature that is detected the coincidence amount of the temperature detection scope of thermoelectric pile 11 gets final product.Thus, even the temperature information of the end parts of the temperature detection scope of thermoelectric pile 11, the precision of detected temperatures increases by overlapping mensuration effect, and owing to hindering factors such as noise are disperseed, so can make a very bad impression to temperature information hardly.Therefore, even do not take some countermeasures, can prevent also that accuracy of detection from can reduce and the precision of the end parts of the temperature detection scope of thermoelectric pile 11 reduces.In addition, owing to can utilize the sensor central portion to carry out temperature detection, so can carry out high-precision temperature detection with the sensor of cheapness.
The value that overlaps successively as mentioned above and be taken into also can directly be used, but in the scope that can once carry out temperature detection with thermoelectric pile 11 is benchmark, under the situation of the position of regulation detected object scope, each skew 1/2, so when control part 101 control air-conditioning air-flows etc., need position corrections such as coordinate transform.In addition, the temperature between the detection zone of the overlapping part of the value that also can be taken into the temperature detection scope is overlapped averages.
In addition, in environment temperature about thermoelectric pile 11 hope the carrying out position of human detection, detected under near the situation of the temperature the human body radiation hot temperature, control part 101 interim drive fan 105 are carried out air-conditioning control and are determined that till dropping to the temperature that can carry out human detection or from the more than one position of being detected there is the high position of probability in human body, drive shutter 108 and fan 105 to be that air-conditioning control is carried out at the center herein, it is preferred beginning human detection after becoming the environment temperature that can carry out human detection once more.
In addition, under the situation of the more high-precision temperature detection of needs,, then can further improve the precision of the temperature that is detected if control part 101 carries out temperature detection at the each point place of the temperature detection scope coincidence 3/4 that makes thermoelectric pile 11 at every turn.
Next, according to the flow chart of the human body detecting method that Fig. 6～Fig. 7 is shown, action describes to the human detection of air conditioner 1.
In step S1～S4 of Fig. 6, control part 101 utilizes thermoelectric pile 11, is taken into the temperature information in air-conditioning predetermined space (room) with the interval of regulation.Then, in S5～S6, utilize hot pixels to show as shown in Figure 5, to be considered to the part group of identical temperature band according to the temperature information that is taken into.Next, in step S7, the temperature information of the time that 101 pairs of control parts are obtained as initial temperature information T1, ensuing temperature information T2, afterwards temperature information T3 before and after going up compares, and detects its temperature difference and be the part of the value in the scope that assumes the part relevant with human body.Then,, the value of being somebody's turn to do has human body, the human detection information of the location of output expression human body if above predefined human detection threshold value, then being made as in this part.In addition, control part 101 is at the part (thermal source) that continues variations in temperature sharp, uses according to environment temperature that predefined human detection threshold decision is human body or equipment in the scope that the variations in temperature at human body can cause, output human detection information etc.For example, even the people moves tempestuously, comprise that the variation of maximum 10 ℃ of front and back also only appears in error.Under the situation that body temperature reduces, calculate and also add the error of having used air-conditioning cooling setpoint and fan machine, under the situation that is variations in temperature, temperature band the human detection threshold range outside, being judged as human body thermal source in addition is equipment.The precision of human detection information improves thus.
In step S8, be judged as resulting from variations in temperature in the zone of human body, under the situation that is in closely (distance in the predefined scope), be considered to same object, so be made as identical these zones and group.This is apart from the temperature information around adding etc. and according to changed condition.For example, around under the situation that temperature reduces significantly from the hot temperature of human body radiation, the possibility that also exists clothes also to cool off is considered as the distance of same object by increase, is easy to carry out personage's correct extraction.Control part 101 also possesses when groupization the size according to temperature variation and group, will be judged as the mechanism of noise owing to the variations in temperature that the thermal source beyond the human body etc. causes.Human detection information is meant, with the image of as heat picture, painting (based on the heat picture of hot pixels) expression temperature information, the image calculation that the time that is used in is gone up front and back goes out the temperature difference, exist the region to set up the binary image of sign at human body, air conditioner 1 carries out existing the region to set the air-conditioning control at center for human body in view of the above.
Difference in use (inter-frame difference) is judged the variation of the hot pixels relevant with temperature information, and carries out under the situation of human detection, also can use a plurality of human detection threshold values corresponding with a plurality of positions of human body.Thus, for example, with head near temperature rise and to compare near the pin temperature and rise under the low situation, utilizes each threshold value corresponding that the heat level is divided into a plurality of grades and sets the human detection threshold value with the position of human body.
In that merely being set, a human detection threshold value carries out with the time difference by the binaryzation group time, might leaking pin under the situation of human detection.But, in said method, owing to can with the heat level from the head near till near the pin adjacent part be made as same human body (personage) group, so can till pin, judge exactly.In addition, can also be considered as noise under the situation that is considered near the difference the pin and ignore, and be judged as that head is hidden and judge the processing that head whether occurs at a plurality of all after dates, can also further improve precision by only being added in to detect.
By the quantity of such increase human detection threshold value, the object of high temperature can be made as noise (thermal source) and remove.
In addition, this technology is not only human body, can also use other thermals source.For example, become high heat near the engine portion of car and near the tire, but other parts are not the high temperature of this degree.Therefore, by utilizing a plurality of thermal source detection thresholds corresponding, the correctly profile of inspection vehicle integral body with each position.
In the step S9 of Fig. 7, control part 101 obtain according to the group A of the temperature information groupization of above-mentioned T1 and T2, according to the location gap of the regulation of each groups such as group B of the temperature information groupization of T2 and T3 from, distance between distance between centers, center of gravity of each group for example, if these distances are in certain certain scope then be considered as same object (for example same personage).Certainly, also can whether come to judge by the quantity of position overlapped in the group than setting more.Be considered as under same personage's the situation, control part 101 is according to this personage's mobile history and traveling time, judge activity, and infer this personage's body temperature which kind of degree that rises, and temperature information by inference makes fan 105 carry out air-conditioning control according to this activity.For example, rise and feel very hot even just carried out after the violent activity body temperature the user, so but since the thick body temperature of clothes can't show the surface of clothes and still keep under the situation of low temperature, can't be corresponding in method in the past.But,, can carry out the effective air-conditioning control corresponding with user's body temperature rising by as present embodiment, considering user's activity.In addition, in memory cell (not shown), make the action model table corresponding in advance with the temperature of hobby at each user's storage, contrast above-mentioned mobile history and the action model of being stored, thereby determine the user, obtain the temperature of each user's hobby, and, carry out air-conditioning control, thereby comfortable environment can be provided according to this temperature.
In addition, constituting under situation of each group, also can utilize distance between the middle position on tetragonal base by the quadrangle that erect to be provided with.Herein, if an example of air-conditioning control is shown, then control part 101 is carrying out existing the region to set up sign and under the situation of the air-conditioning control set at human body, drive shutter 108 and under situation about heating, control, under the situation of refrigeration, drive shutter 108 and control towards tetragonal barycentric subdivision towards the tetragonal base that is considered to pin.In addition,, can control the air-conditioning air-flow and carry out air-conditioning etc., to carry out comfortable control accordingly with setting for the people who does not wish wind-engaging.
Be used for human detection the human detection threshold value can according to the region (even even winter also warm Okinawa in also nice and cool Hokkaido etc. in summer), user's hobby freely switches.The preferred a plurality of human detection threshold values of storage in not shown built-in memory cell in advance.
Then, by the handover operation from operation board, remote controller from the user, control part 101 takes out pairing human detection threshold value from this memory cell, moves according to this human detection threshold value afterwards.Can also regulate human detection sensitivity thus.For example, around under the situation of temperature near people's surface temperature, can also set the human detection threshold value lower, and make near the human detection human surface temperature's (hot temperature of human body radiation) become sensitivity, perhaps utilize the thermal resistor 12 of thermal resistor 21, the indoor set 10 of off-premises station 20 to calculate the surface temperature of the user's who comes back from the purpose of going out clothes, and reduce near the threshold value this temperature.If the air-conditioning by air conditioner self also adds the situation that radiant heat changes in addition, then can reduce flase drop and survey.
In addition, control part 101 can change the table of the middle threshold values of utilizing such as thermal source detection at each region.For example, if the user carries out alter operation from operation board or remote controller to desired temperature, then control part 101 receives this setting value via not shown input block.Human body radiation heat and environment temperature when control part 101 study receives are obtained the relational expression of human body radiation heat and environment temperature, carry out air-conditioning accordingly with it.Setting when because the temperature change request that has the user having changed, thus the human body radiation heat of control part 101 by this user of study when which kind of temperature by how temperature is set, can realize the air-conditioning corresponding with the user.In addition, the air-conditioning that can be achieved as follows: utilize by a plurality of users,, get the average of temperature setting, and Any user is all satisfied certain degree temperature request even temperature is set under the different situations under the same conditions.Under 28 degree in the same terms, for example summer during 33 ℃ of human body radiant heat, learnt in the past under the situation that the temperature rising is set, temperature descends setting, temperature information one side who sets is big value if descend, and then is considered as having strong decline temperature request, and air-conditioner temperature is descended.Then, also hypothesis under the situation of the air-flow of not wishing to be subjected to air-conditioning, and flap is improved, and reduce the settings such as speed of fan.
The mean temperature of human detection threshold value, the temperature that do not detect according to the thermoelectric pile 11 by indoor set 10 at decision threshold, the temperature that is detected by thermal resistor 12 do not change.In addition, control part 101 judges when heating etc. that the air-conditioning air-flow partly flows which of room, uses the value of setting in advance when initial, proofreaies and correct the temperature of the influence of the heating that is subjected to air conditioner, air-conditioning air-flow.Add the temperature cause thus then and rise, decision human detection threshold value, not at judgment threshold.When heating, learn temperature rising curve gradually, calculate the photothermal difference when having stopped fan 105, with the human detection threshold value, be not modified as the value corresponding with user's room at decision threshold.
In step S10～14 of Fig. 7, detecting under the situation of human body, control part 101 judges whether to exist people's human body existence value to add predefined value according to human detection information to being used to.
Do not detecting under the situation of human body, control part 101 only carries out the subtraction of predefined value in the scope that has human body existence value.Control part 101 is whenever being taken into temperature information or at each predefined time, deducting predefined value from human body existence value, and less than under the situation at decision threshold not, the position that only in the end detects action carries out not judging in human body existence value.
The variations in temperature of the temperature information of control part 101 and then the groupization when utilizing from human detection and the temperature of this part judge whether there be not judging of people.Thus, can only judge whether the people stops and being failure to actuate or flase drop is not measured thermal source, so can carry out reliably not judging in the position of having carried out temperature detection.Control part 101 resets and is not had the sign of region at the human body of judging, stops at the air-conditioning control of this part under the situation that sign resets or carries out energy-saving operation.Therefore, need not the air-conditioning of wasting and can realize energy-conservation and the air-conditioning high efficiency.In addition, the temperature of the front and back on axle observing time only in human detection is not so if there is not the difference (variations in temperature) of temperature, then control part 101 carries out human detection.In addition, the temperature of home appliance etc. rises gradually, so even there is near the thermal source of human body temperature, also can not produce flase drop as the conventional art and survey.In addition, even the temperature of heat-producing device rises sharp, also the flase drop survey can not eliminated in judgement.
Using unary temperature detecting unit and making its scanning and carry out under the situation of temperature detection, generation time lags behind before obtaining temperature information, so the temperature rising value uprises in plasm TV etc., might be detected as human body mistakenly.In addition, be difficult to judge even when not judging, also keep near the constant temperature the hot temperature of human body radiation.But,, then can not continue mistake identification if can after the timing that sets, for example certain hour, refresh (deletion) human detection information.
Human body existence value is with f (n) expression, become with the preceding human body existence value f (n-1) that once calculates is multiplied by human body have factor alpha and be worth, with the human detection function F (n) that takes place under the situation of carrying out human detection is multiplied by the human detection factor beta and the value of the value addition that obtains.This formula becomes f (n)=f (n-1) * α+F (n) * β, should value rise significantly under the situation of finding human body, should value descend gradually under undiscovered situation.Human body exists factor alpha to be changed arbitrarily by the user, can also change the sensitivity of human detection.Can also or rewrite existence value Calculation Method according to the change of air-conditioning machine, can also rewrite via network by operator or user.
In method in the past, continue flase drop in case there is not the mechanism of judging once more under near the situation of the thermal source flase drop is measured human body temperature and survey.But in the present embodiment, judging that the difference of the temperature when obtaining with human detection becomes big situation in variations in temperature and judges and do not exist into human body by carrying out after certain hour.Therefore, after the rapid variations in temperature of avoiding causing etc., and can carry out reliably not detecting, survey so can not continue flase drop, and can carry out correct human detection owing to heat-producing device.In addition, the threshold value table used of the human detection of under the situation of carrying out human detection, using with do not use different tables usually at the threshold value table of judging usefulness.Thus, near the threshold value of human body temperature can be reduced, the human detection of minor variations can also be carried out.In addition, human detection sensitivity can be set for a plurality of stages by setting the user.And then, by being divided into the threshold value table that uses when the human detection and, have the effect of not carrying out owing to put on variations such as upper garment not in judgement at the threshold value table that or not judge the time, does not use.In addition, in method in the past,, then be not judged as and exist, can't carry out appropriate air-conditioning the personage who lives and stop if in certain certain hour, do not cause human detection in the position of having carried out human detection.But, in the present embodiment, carry out, even also can carry out air-conditioning rightly to the personage who stops not in determination processing.
And then control part 101 can also be in the information of predefined periodic refreshing (deletion) human detection.Thus, even just in case carried out the flase drop survey, owing to when the refreshing of next time, carry out correct detection, so the continuation that can avoid flase drop to survey.Also can refresh at any time from remote controller.In addition, control part 101 also can can't carry out under the situation of human detection, for example temperature is to be difficult to carry out under the situation of human detection near the human body radiant heat temperature around, drive fan 105 is carried out air-conditioning control to carry out air-conditioning control till the temperature that can detect, human detection information till perhaps selecting before this, temperature information storage weighting are controlled according to this weight allocation comprehensively.Thus, up to be varied to can carry out the temperature of human detection till, the air-conditioning that can suppress to waste also can suppress energy-saving effect and reduce in the time till human detection.Can also be by the action model of registering in advance according to the action model of being learnt, carrying through to the end is individual's identification of which personage, carries out best air-conditioning at each individual.If the study action model even then do not show variations in temperature significantly because clothes is thick, also can be inferred that human body temperature rises according to its activity, and carry out comfortable air-conditioning control.
For example, near the human body that detects human body the former zone that detects human body once more, as being stranded near the human body it and to be judged as activity little.On the other hand, to be judged as activity big for the human body that detects human body beyond the former zone that detects human body.
In (under the situation of cycle weak point) under the high situation of frame frequency, the personage in certain certain scope can be judged as same personage, can calculate moving area, so can easily judge activity.
But, in the slow situation of frame frequency, scanning calorimeter image and under the situation of the method that obtains, this gimmick is effective.Employing goes out human body in continuous detecting position adds value and carries out, in the method that has the value of deducting under the situation about changing.Because the initial personage who occurs comes in from the outside, so activity is big, and it is little to be stranded in people's the activity of same position.Even go out from the room and return temporarily, activity is little under most situation in the position that detects human body.
In embodiment 1, in certain zone, detect under the situation of human body, when the comparison of heat picture of carrying out this heat picture and next time, under the situation that thermal source moves, need carry out not judging, and judge the people /do not exist.In embodiment 2, the mode with its simplification is described.
For example, detecting under the situation of human body, the hot pixels part of human detection scope at the heat picture of the distribution of expression temperature is rewritten into background image with the former hot pixels that detects human body.In this case, the ambient temperature hot pixels beyond the human detection scope is directly rewritten.Thus, under the situation that the time advances in the ensuing cycle (frame), even under the situation that the people moves, also produce the difference of background image and thermal source image, thus can easily carry out the people /not judgement.Even do not carry out not judging of embodiment 1 thus, can judge simply that the people has stopped the time how long in this zone yet.
Under the situation of the ambient temperature beyond the zone of human detection is carried out in renewal, under the situation that human body newly moves according to the average environment temperature decision human detection threshold value of last time, so the precision of testing result improves based on hot pixels.In addition, even in the human detection zone, also use the last ambient temperature of environment temperature and human detection position to calculate average environment temperature,, can reduce the detection error so can use best human detection threshold value.
In addition, be stranded in same position the people, and under the situation of the change of ambient temperature on every side, detecting under the situation of human body, hot pixels before the hot pixels of human detection scope part will detect human body is rewritten into background image, so environment temperature changes before the people moves, might carry out mistakenly under the situation that the background image before the human detection is identical with current ambient temperature etc. not judging.
For corresponding to this, under the situation that the mean value of environment temperature rises in the people is detained, preferably proofread and correct the hot pixels of the part of people's delay accordingly with ambient temperature.For example, the ambient temperature that moves before coming the people is 10 ℃, and moves under 32 ℃ people's the situation, and environment temperature rises to 20 ℃ afterwards, and under people's situation about moving, might 20 ℃ with 10 ℃ in detect 10 ℃ difference.Therefore, in this case,, human body is detained the ambient temperature hot pixels partly adds temperature correction according to the hot pixels around human detection zone or the human body.Even thus the people move can not be detected as by mistake yet be detained and can judge rightly/do not exist.
In addition, in the air conditioner 1 of the respective embodiments described above, except above-mentioned various information being used for the automatic control of air conditioner 1, can also pass through network utilisation.In this case, for example, under the situation of long distance, constitute the wireless communication unit of communicating by letter that in indoor set 10, is provided in addition carrying out with portable phone, between the control part 101 of portable phone and this indoor set 10, communicate via wireless communication unit.In addition, under in-plant situation, constitute the wireless communication unit that in indoor set 10, is provided in addition receiving from the signal of remote controller, between the control part 101 of remote controller and this indoor set 10, communicate via wireless communication unit.By said structure, for example the user not the time can carry out human detection, so can be used for Stateful Inspection of antitheft or indoor animal etc.In addition, operate under the frequent situation, can also make pre-set threshold, setting variation in the memory of air conditioner 1, can also select optimum value from database by network at remote controller.In addition, by with other equipment interlocks, for example judge user's hot bath and air-conditioner temperature set for reduce a little according to the information of water heater, can also further realize energy-conservation.And then, can also according to the door switching sensor, the wireless identification tag that utilize the room obtain /not in the information from other equipment such as information, carry out human detection more accurately, comfortable control.
In addition, the temperature-detecting device of the thermals source such as human body of explanation may not be limited to the thermoelectric pile that uses herein in embodiment 1,2, and also can use other temperature detection sensors with same function.
In addition, can also pull down temperature-detecting device, and it is moved as the sensor monomer, can invest other home appliances, facility built-in or outward from air conditioner 1.
Claims (22)
1. air conditioner is characterized in that possessing:
Temperature detecting unit, a scan edge temperature detection object range is detected temperatures on one side;
The temperature detecting unit drive circuit drives the said temperature detecting unit; And
Control part, control said temperature detecting unit drive circuit,
Above-mentioned control part utilizes said temperature detecting unit drive circuit so that the mode of a part of area coincidence of the temperature detection scope of said temperature detecting unit scans, and makes above-mentioned a part of area coincidence and carry out temperature detection.
2. air conditioner is characterized in that possessing:
A plurality of temperature detecting units, a plurality of zones that constitute with the temperature detection object range is cut apart are provided with accordingly; And
Control part, control said temperature detecting unit,
Above-mentioned control part makes a part of area coincidence of the temperature detection scope of above-mentioned a plurality of temperature detecting units carry out temperature detection.
3. air conditioner according to claim 1 and 2 is characterized in that, above-mentioned control part possesses:
Comparing section, the temperature information before and after going up according to the time of obtaining from the said temperature detecting unit calculates their temperature difference, and this temperature difference and kind pre-set threshold according to thermal source are compared; And
The thermal source test section surpasses under the situation of above-mentioned threshold value in the variations in temperature that is obtained by above-mentioned comparing section, is judged as and detects the thermal source corresponding with above-mentioned threshold value, calculates this thermal source and where is present in.
4. air conditioner according to claim 3 is characterized in that, above-mentioned thermal source test section adds predefined value to the thermal source detection position that is calculated,
The position that does not detect thermal source is deducted above-mentioned predefined value,
The human body existence value that has obtained having added and subtracted above-mentioned predefined value becomes predefined not under the situation below the decision threshold, only in the end detect the position of variations in temperature, variations in temperature when detecting from thermal source compares, and judges whether to have thermal source.
5. according to claim 3 or 4 described air conditioners, it is characterized in that above-mentioned control part is considered as same object and group with them under the distance of the specified part interdigit that is judged as the zone that has thermal source is situation in the prescribed limit.
6. air conditioner according to claim 5 is characterized in that, above-mentioned control part according to temperature conditions on every side, changes as the above-mentioned distance that is considered as same object conditions when carrying out above-mentioned group of change.
7. according to claim 5 or 6 described air conditioners, it is characterized in that, above-mentioned control part is according to the mobile history and/or the traveling time of above-mentioned same object, infer the activity of above-mentioned same object, and infer that according to this activity the temperature of above-mentioned same object rises, and rise according to the temperature of this supposition, carry out air-conditioning control.
8. according to any described air conditioner in the claim 4～7, it is characterized in that, possess each kind storage at predefined thermal source make separately action model and/or the memory cell of the temperature model table corresponding with the temperature of the best,
Above-mentioned control part is according to the mobile history and the traveling time of above-mentioned same object, determine action model and/or temperature model, according to this action pattern, temperature model be stored in the action model and/or the temperature model of the table in the said memory cells, determine corresponding thermal source, obtain the temperature of the best of this thermal source, and carry out air-conditioning control according to this temperature.
9. according to any described air conditioner in the claim 5～8, it is characterized in that, possess adjusting from indoor set blow out wind towards wind direction adjusting plate,
Above-mentioned control part is according to the shape of having carried out the group of above-mentioned group of change, change above-mentioned wind direction adjusting plate towards.
10. according to any described air conditioner in the claim 4～9, it is characterized in that, for the above-mentioned threshold value of using in the thermal source detection, the room temperature according to mean temperature that is obtained by the said temperature detecting unit or temperature detection object range changes this threshold value.
11. any described air conditioner according in the claim 4～10 is characterized in that, makes threshold value and the above-mentioned threshold value of not using in judgement used in the above-mentioned thermal source detection different.
12. according to any described air conditioner in the claim 3～11, it is characterized in that, under near the situation of the temperature of the above-mentioned control part environment temperature that hope detects the position of thermal source is human body radiant heat temperature, carry out temporarily with hope detect the position of above-mentioned thermal source or before this till the human body of study to have the high position of probability be the air-conditioning control that the center descends temperature, afterwards, thermal source being detected begins once more.
13. any described air conditioner according in the claim 1～12 is characterized in that, above-mentioned control part is made as the coincidence amount in the part zone of the temperature detection scope of said temperature detecting unit can change.
14. any described air conditioner according in the claim 3～13 is characterized in that, the result that above-mentioned control part is removed the detection of thermal source and do not judged in predefined timing.
15. any described air conditioner according in the claim 1～14 is characterized in that, above-mentioned control part possesses the heating of proofreading and correct owing to air conditioner self, the correcting unit of the caused temperature of air-conditioning air-flow.
16. any described air conditioner according in the claim 3～15 is characterized in that, utilizes ground domain information, date and time information or from the appointment of outside, switches the table that comprises above-mentioned threshold value.
17. air conditioner according to claim 4 is characterized in that, the detected temperatures of the above-mentioned control part said temperature detecting unit when detecting human body is poor with the current detected temperatures of said temperature detecting unit, carry out human body in judgement.
18. according to any described air conditioner in the claim 3～17, it is characterized in that, above-mentioned control part is expressed as heat picture with the detected temperatures of said temperature detecting unit, use detect human body the position environment temperature or detect some temperature of the ambient temperature of the human detection position before the human body, make the heat picture of temperature that expression detects the position of human body.
19. air conditioner according to claim 18 is characterized in that, above-mentioned control part is stranded in the process of same position at human body, proofreaies and correct the ambient temperature of above-mentioned human detection position according to this zone or environment temperature.
20. any described air conditioner according in the claim 3～19 is characterized in that, sets a plurality of above-mentioned human detection threshold values accordingly with a plurality of positions of human body, carries out human detection according to above-mentioned a plurality of threshold values.
21. according to claim 5 or 6 described air conditioners, it is characterized in that, above-mentioned control part calculates the activity of above-mentioned human body according to the variable quantity that detects the position of human body, and infer that according to this activity the temperature of above-mentioned human body rises, and rise according to the temperature of this supposition, carry out air-conditioning control.
22. any described air conditioner according in the claim 1～21 is characterized in that, constitutes and can pull down the said temperature detecting unit from indoor set, and move with monomer.
Applications Claiming Priority (3)
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| JP243236/2006 | 2006-09-07 | ||
| PCT/JP2007/066720 WO2008029679A1 (en) | 2006-09-07 | 2007-08-29 | Air conditioner |
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| Publication Number | Publication Date |
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| CN101490479A true CN101490479A (en) | 2009-07-22 |
| CN101490479B CN101490479B (en) | 2010-12-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007800258990A Active CN101490479B (en) | 2006-09-07 | 2007-08-29 | Air conditioner |
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| Country | Link |
|---|---|
| EP (1) | EP2060857B1 (en) |
| JP (2) | JP4859926B2 (en) |
| CN (1) | CN101490479B (en) |
| WO (1) | WO2008029679A1 (en) |
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Also Published As
| Publication number | Publication date |
|---|---|
| WO2008029679A1 (en) | 2008-03-13 |
| JP5452550B2 (en) | 2014-03-26 |
| JPWO2008029679A1 (en) | 2010-01-21 |
| EP2060857A4 (en) | 2012-01-25 |
| JP4859926B2 (en) | 2012-01-25 |
| CN101490479B (en) | 2010-12-15 |
| EP2060857B1 (en) | 2019-01-09 |
| JP2011208936A (en) | 2011-10-20 |
| EP2060857A1 (en) | 2009-05-20 |
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