CN113339950A - Air conditioner control system - Google Patents
Air conditioner control system Download PDFInfo
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- CN113339950A CN113339950A CN202110602082.7A CN202110602082A CN113339950A CN 113339950 A CN113339950 A CN 113339950A CN 202110602082 A CN202110602082 A CN 202110602082A CN 113339950 A CN113339950 A CN 113339950A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/54—Control or safety arrangements characterised by user interfaces or communication using one central controller connected to several sub-controllers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/56—Remote control
- F24F11/58—Remote control using Internet communication
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/61—Control or safety arrangements characterised by user interfaces or communication using timers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
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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
- F24F2110/00—Control inputs relating to air properties
- F24F2110/20—Humidity
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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
- F24F2120/20—Feedback from users
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- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
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- Human Computer Interaction (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention discloses an air conditioner control system, comprising: an infrared sensing device for sensing a target object, a hand temperature and a face temperature of the target object; the cloud platform is used for establishing a thermal comfort model between the hand temperature and the face temperature and the TSV, and further comprises an adjusting module; the adjusting module is configured to issue a control adjusting instruction to the air conditioner according to the data fed back by the infrared sensing equipment. According to the invention, the infrared sensing equipment senses the target object, senses the hand temperature and the face temperature of the target object, establishes the thermal comfort model on the cloud platform, acquires the TSV of the environment where the target object is located, and issues the control and regulation instruction to the air conditioner according to the TSV cloud platform, so that the comfort control of the air conditioner can be realized quickly.
Description
Technical Field
The invention relates to the technical field of air conditioner control, in particular to an air conditioner control system.
Background
When the air conditioner operates in a cooling/heating mode, the air conditioner generally operates according to parameter values such as temperature or wind speed preset by a user, the individual difference of the user and the nonuniformity of indoor environment parameters are considered, the air conditioner is sometimes not really suitable for the user after operating according to the parameters preset by the user, the condition of repeatedly adjusting the air conditioner can occur, and to some extent, the user can not necessarily accurately judge the relationship between the self requirement and the air conditioner setting, so that the 'lower room temperature in summer and higher room temperature in winter' is caused, the comfort and experience of the user are influenced, and the energy consumption of the air conditioner is increased.
Currently, in the field of thermal comfort research, characterizing the temperature/cold sensation/comfort of the human body can be divided into two categories: one is a control method established by relying on Thermal Sensing Votes (TSV) of a large number of people on the basis of a heat exchange model between people and the environment or environment parameters; the other is to try to simulate the human thermal physiological process and the heat exchange relationship with the environment, and define and describe the thermal state of the human in the environment by using physiological parameters.
The prior patent CN110454930B provides a method and a device for estimating the optimal thermal comfort of a human body and a method and a device for controlling an air conditioner, wherein intelligent wearable equipment is used for obtaining physical sign parameters of the human body, an average skin temperature and an average skin humidity of the human body under indoor environment parameters are calculated through a given human body thermal balance model, and TSV of the human body to the environment is predicted, so that the method has the defects of more related parameters, complicated calculation and poor timeliness of air conditioner control; and increase intelligent wearing equipment and produce psychological pressure to the user, influence its thermoesthesia.
Disclosure of Invention
The invention aims to provide an air conditioner control system, which can quickly realize the comfort control of an air conditioner by sensing a target object and sensing the hand temperature and the face temperature of the target object through an infrared sensing device, establishing a thermal comfort model on a cloud platform, acquiring TSV (through silicon via) of the environment where the target object is located, and issuing a control and regulation instruction to the air conditioner according to the TSV cloud platform.
In order to realize the purpose of the invention, the invention is realized by adopting the following technical scheme:
the application relates to an air conditioner control system, which is characterized by comprising:
an infrared sensing device for sensing a target object, a hand temperature and a face temperature of the target object;
the cloud platform is used for establishing a thermal comfort model between the hand temperature and the face temperature and the TSV, and further comprises an adjusting module;
the adjusting module is configured to issue a control adjusting instruction to the air conditioner according to the data fed back by the infrared sensing equipment.
In some embodiments of the present application, the adjusting module is configured to issue a control and adjustment instruction to the air conditioner according to data fed back by the infrared sensing device, specifically:
when the hand temperature and/or the face temperature fed back by the infrared sensing equipment are received in real time, the adjusting module acquires the TSV corresponding to the hand temperature according to the thermal comfort modelHand (W.E.)And/or TSV corresponding to facial temperatureFace (A)And sends control and regulation instructions to the air conditioner;
when the target object is sensed and the hand temperature and the face temperature are not received within a first preset time period, the adjusting module keeps the TSV of the hand temperature sensed last timeHand (W.E.)And/and-Or TSV corresponding to facial temperatureFace (A)And sends control and regulation instructions to the air conditioner;
when the target object is sensed and the hand temperature and the face temperature are not received within a first preset time period, the adjusting module issues a cooling mode instruction or a heating mode instruction to the air conditioner;
and when the target object is not sensed in a second preset time period, the adjusting module issues a shutdown instruction to the air conditioner.
In some embodiments of the present application, when the hand temperature and/or the face temperature fed back by the infrared sensing device are received in real time, the adjusting module obtains the TSV corresponding to the hand temperature according to the thermal comfort modelHand (W.E.)And/or TSV corresponding to facial temperatureFace (A)Issuing a control and regulation instruction, which specifically comprises the following steps:
if the hand temperature and the face temperature are received, the adjusting module calculates TSV according to the weightHand (W.E.)And TSVFace (A)Summing to obtain a TSV1, and comparing the TSV1 with a preset thermal sensing range to determine a target thermal sensing range affiliated to the TVS 1; issuing a control and regulation instruction according to the target thermal sensation range;
if the hand temperature is received, the adjusting module adjusts the hand temperature according to the TSVHand (W.E.)Comparing with the preset thermal sensing range to determine TSVHand (W.E.)A subordinate target heat sensation range; issuing a control and regulation instruction according to the target thermal sensation range;
if the face temperature is received, the adjusting module adjusts the face temperature according to the TSVFace (A)Comparing with the preset thermal sensing range to determine TSVFace (A)A subordinate target heat sensation range; and issuing the control and regulation instruction according to the target thermal sensing range.
In some embodiments of the present application, the predetermined thermal sensing ranges include a first range [ -3, -2], a second range (-2, -1), a third range [ -1,1], a fourth range (1,2), and a fifth range [2,3 ];
in TSV1, TSVHand (W.E.)Or TSVFace (A)When the air conditioner belongs to a first range and is kept for a certain time, first temperature rise compensation is sent to the air conditioner;
in TSV1, TSVHand (W.E.)Or TSVFace (A)Sending a second temperature rise compensation to the air conditioner when the air conditioner belongs to a second range and is kept for a certain time;
in TSV1, TSVHand (W.E.)Or TSVFace (A)Belonging to a third range and maintaining the current running state of the air conditioner;
in TSV1, TSVHand (W.E.)Or TSVFace (A)When the air conditioner belongs to a fourth range and is kept for a certain time, first cooling compensation is sent to the air conditioner;
in TSV1, TSVHand (W.E.)Or TSVFace (A)And sending a second cooling compensation to the air conditioner when the air conditioner belongs to the fifth range and is kept for a certain time.
In some embodiments of the present application, when the target object is sensed and no hand temperature and/or face temperature is received for more than a first preset time period, the adjusting module issues a cooling mode instruction or a heating mode instruction according to the outdoor temperature to adjust the indoor temperature within a preset temperature range and the indoor humidity within a preset humidity range.
In some embodiments of the present application, the cloud platform comprises:
a data pre-set module for pre-setting a thermal comfort model, wherein data for the thermal comfort model is from a thermal comfort subjective questionnaire of a large number of users.
In some embodiments of the present application, the thermal comfort model is established using a random forest algorithm.
In some embodiments of the present application, the cloud platform further comprises:
the data updating module is used for acquiring user adjustment data for controlling the air conditioner through an application program loaded on a terminal, and the terminal is in communication connection with the cloud platform;
and the data updating module updates the data used for the thermal comfort model according to the user regulation data, the indoor temperature, the indoor humidity, the ambient temperature, the hand temperature and the face temperature, and the TSV under the current environment.
In some embodiments of the present application, the cloud platform further comprises:
a data filtering module for filtering invalid data in the indoor temperature, indoor humidity, ambient temperature, hand temperature and face temperature.
Compared with the prior art, the air conditioner control system provided by the application has the following advantages and beneficial effects:
(1) the infrared sensing equipment is used for sensing the target object, the hand temperature and the face temperature of the target object, the infrared sensing equipment is not directly contacted with the skin of a user, pressure is not caused to the psychology of the user, and the thermal sensation of the user can be accurately reflected;
(2) the strong computing power of the cloud platform is utilized to establish a thermal comfort model between the hand temperature and the face temperature and the TSV, data processing is fast, computing resources of the air conditioner are not occupied, and control timeliness of the air conditioner is not affected;
(3) the hot comfortable model is input parameters including the hand temperature and the face temperature of the target object, the control regulation instruction is output parameters, the intelligent control level of the air conditioner is greatly improved, the hand temperature and the face temperature of the target object can sensitively reflect the condition of the cold and hot perception of the target object to the environment, and the use experience of a user is improved.
Other features and advantages of the present invention will become more apparent from the following detailed description of the invention when taken in conjunction with the accompanying drawings.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a communication block diagram of an embodiment of an air conditioning control system according to the present invention;
FIG. 2 is a schematic block diagram of updating a thermal comfort model in an embodiment of an air conditioning control system according to the present invention;
fig. 3 is a control flow chart based on TVS according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention. In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
In the description of the present invention, it should be noted that the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected unless otherwise explicitly stated or limited. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art. In the foregoing description of embodiments, the particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.
The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
[ basic operation principle of air conditioner ]
A refrigeration cycle of an air conditioner includes a compressor, a condenser, an expansion valve, and an evaporator. The refrigeration cycle includes a series of processes involving compression, condensation, expansion, and evaporation, and supplies refrigerant to the air that has been conditioned and heat-exchanged.
The compressor compresses a refrigerant gas in a high-temperature and high-pressure state and discharges the compressed refrigerant gas. The discharged refrigerant gas flows into the condenser. The condenser condenses the compressed refrigerant into a liquid phase, and heat is released to the surrounding environment through the condensation process.
The expansion valve expands the liquid-phase refrigerant in a high-temperature and high-pressure state condensed in the condenser into a low-pressure liquid-phase refrigerant. The evaporator evaporates the refrigerant expanded in the expansion valve and returns the refrigerant gas in a low-temperature and low-pressure state to the compressor. The evaporator can achieve a cooling effect by heat-exchanging with a material to be cooled using latent heat of evaporation of a refrigerant. The air conditioner can adjust the temperature of the indoor space throughout the cycle.
The outdoor unit of an air conditioner refers to a portion including a compressor of a refrigeration cycle and includes an outdoor heat exchanger, the indoor unit of an air conditioner includes an indoor heat exchanger, and an expansion valve may be provided in the indoor unit or the outdoor unit of an air conditioner.
The indoor heat exchanger and the outdoor heat exchanger serve as a condenser or an evaporator. When the indoor heat exchanger is used as a condenser, the air conditioner is used as a heater in a heating mode, and when the indoor heat exchanger is used as an evaporator, the air conditioner is used as a cooler in a cooling mode.
[ air-conditioning control System ]
Referring to fig. 1, the air conditioner control system relates to an infrared sensing device, a cloud platform, a network connector, an outdoor unit, and an indoor unit.
Infrared sensing device
The infrared sensing device may be, for example, a thermal infrared imager, which is installed in the room, is capable of sensing a target object in the room, and is capable of detecting a human body temperature of the target object.
Wherein the target object is a user having a heating or cooling demand within an effective operating range of the air conditioner.
The infrared sensing equipment is in communication connection with the cloud platform, and can detect data (for example, whether a person is in a room or not and the hand temperature T of a user when the person is in the room)Hand (W.E.)And facial temperature TFace (A)) And feeding back to the cloud platform.
The hand temperature, especially the fingers, is one of the most vulnerable parts of the human body to cold and heat due to the factors of large hand surface area, large heat dissipation amount, small metabolic production amount and the like.
Research shows that the hand skin temperature directly influences the flexibility and comfort of the hand, the hand temperature is kept above 15 ℃, the flexibility and comfort of the hand cannot be guaranteed to be influenced, when the hand temperature is between 6 ℃ and 8 ℃, the flexibility of the hand is reduced sharply, accidents are easy to cause, and when the hand temperature is lower than 5 ℃, frostbite is easy to occur.
Therefore, the hand temperature can well reflect the cold and hot comfort of the user.
The face is generally not sheltered from, can guarantee to acquire face's temperature, and face's blood vessel is abundant, when the blood vessel flow of thermoregulation system control face changes, very easily detects.
Indoor cold and hot degree can influence user face's vascularity, consequently, the face temperature also can reflect user's cold and hot travelling comfort well.
Cloud platform
The cloud platform is communicated with the network connector, and the network connector is communicated with the air conditioner, so that the cloud platform can be communicated with the air conditioner through the network connector.
Namely, the cloud platform can issue a control and regulation instruction to the air conditioner through the network connector, and the running state data of the air conditioner can also be uploaded to the cloud platform through the network connector.
The control and regulation instructions can adjust parameters such as temperature, humidity, wind speed and the like, and finally the indoor environment is comfortable.
Network connectors include, but are not limited to, connecting to cloud platforms via NB-IoT, 4G, 5G, etc. communication.
The terminal (such as a mobile phone, a pad or a computer) can be connected to the cloud platform through a network connection device such as a router or a gateway.
The terminal is loaded with an application program APP for controlling the air conditioner and monitoring the running state of the air conditioner, and a user can issue information for adjusting the air conditioner through the APP (for example, the user feels hot, and the temperature is reduced and/or the wind speed is increased).
And the APP can also read data about the running state of the outdoor unit/indoor unit on the cloud platform.
By utilizing the strong data processing capacity of the cloud platform, a thermal comfort model between the hand temperature T hand, the face temperature T face and the thermal sensing voting TSV is established on the cloud platform, and the speed is high.
Sensing whether a target object exists in a room or not at certain time intervals (for example, 1 min) by an infrared sensing device, sensing the hand temperature and the face temperature of the target object, and calculating the thermal sensing TSV of the current hand and face according to a thermal comfort modelHand (W.E.)And TSVFace (A)Using heat-sensitive TSV of the hands and faceHand (W.E.)And TSVFace (A)The whole comfortableness/temperature and cold feeling of the human body is represented, so that the control of the air conditioner is realized.
The cloud platform comprises a data presetting module, a data updating module and an adjusting module.
The data presetting module and the data updating module are used for establishing a thermal comfort model.
The adjusting module is used for issuing a control adjusting instruction to the air conditioner according to the data fed back by the infrared sensing equipment.
The control and regulation instruction comprises but is not limited to temperature regulation, humidity regulation, indoor wind speed regulation and the like of the air conditioner, and meets the requirement that the air conditioner executes feedback regulation.
The data presetting module and the data updating module are specifically described as follows.
Data presetting module
The data presetting module is used for establishing and presetting a thermal comfort model.
The data for the preset thermal comfort model is from a thermal comfort subjective questionnaire for a large number of users.
The hand temperature and the face temperature are influenced by environmental factors such as wind speed, wind direction, indoor temperature, humidity and radiation temperature, and individual differences such as activity, clothes, age, sex and body fat rate of people.
Therefore, the data is obtained based on a large number of subjective experiments, the parameters such as the hot and humid environment parameters in the accurate control room, the metabolism rate of the human body, the clothing thermal resistance and the like are used for carrying out the test of the testee with a large sample amount, the collected relationship between the hand temperature and the face temperature and the TSV is filled in, and the thermal comfort subjective questionnaire is filled in, wherein the data comprises the relationship between the user comfort level and the hand temperature and the face temperature under the working conditions of different humidity, different wind speeds, different clothing types and different activity types.
The parameter types in the data relate to a plurality of parameters, and the relationship between the comfort level of a user and the hand temperature and the face temperature can be accurately reflected.
And training and predicting the data by adopting the conventional random forest algorithm through the acquired data to establish a thermal comfort model.
In the random forest algorithm, at each intersection point in each forest tree, judgment is performed according to a plurality of different characteristics (face temperature T, hand temperature, environment temperature and the like), and the TSV is obtained after the judgment of one layer at each intersection point.
In practical application, voting is carried out according to the judgment results of a plurality of random forest trees, the maximum voting number corresponds to human thermal sensation, for example, 17 random forest trees are adopted as a thermal comfort model, and 17 TSVs are obtained based on face temperature and skin temperature.
After that, 17 TSVs are counted, wherein 3 TSVs = -1, 4 TSVs = +1, 10 TSVs =0, and the number of neutral votes is 10 at most, so that the human body thermal sensation in the environment is neutral overall.
It should be noted that the thermal sensing TSV here is defined by TSV = ± 1, which translates to three values of-1/0/+ 1, TSV = -1 corresponds to "cold", TSV =0 corresponds to "neutral (i.e., not cold but not hot)", and TSV = +1 corresponds to "hot".
The thermal sensation of the existing TSV to the environment is classified into 7 grades, as shown in the following table.
| TSV | +3 | +2 | +1 | 0 | -1 | -2 | -3 |
| Thermal sensation | Heat generation | Heating device | Slightly warm | Is moderate | Slightly cool | Cool down | Cold |
When the air conditioner leaves a factory, the data presetting module finishes two steps of model training and model generation.
Data updating module
The data updating module is used for updating the data for establishing the thermal comfort model so as to update the thermal comfort model, so that the air conditioner can be controlled more intelligently.
The thermal comfort model can be modeled again after the air conditioner is used for a period of time or when the data volume fed back by the user of the APP connected with the cloud platform in a communication mode reaches a certain degree, so that the preset thermal comfort model is updated, and the thermal comfort model suitable for representing the personal human comfort of the user can be dynamically updated.
The data for updating includes user adjustment data, indoor temperature, indoor humidity, ambient temperature, hand temperature, face temperature and TSV under the current environment obtained through APP on the terminal for the user to control the air conditioner.
The TSV in the current environment can be a thermal sensing TSV input by a user through the APP under the current environment parameters.
On the cloud platform, not only a large amount of data are stored, but also the relationship among the hand temperature, the face temperature and the TSV is established, and according to the TSV, control and regulation instructions including air conditioner temperature rising/lowering signals, humidity regulation signals and the like are issued to the air conditioner.
Data filtering module
In addition, the cloud platform also includes a data filtering module.
The data filtering module is used for: before using the data for updating the thermal comfort model, the data is filtered to remove invalid data, because some data need to be within a certain range to meet the actual situation.
For example, a reasonable facial temperature in the range of 29 ℃ to 38 ℃; indoor temperature should be lower than 40 ℃ in summer or winter, etc.
Referring to fig. 2, a process for updating the thermal comfort model is shown.
(1) And (6) collecting data. This section collects hand and face temperatures sensed by the infrared sensing device, as well as user adjustment data of the user through the APP, as described above.
(2) And (5) filtering data. This section filters unreasonable data using a data filtering module as described above to ensure that the data used for modeling is reliable data.
(3) And (5) updating the data. And updating the data for establishing the thermal comfort model by using the new filtered data.
(4) And (6) modeling. And modeling by using the updated data to obtain an updated thermal comfort module so as to intelligently realize the comfort control of the air conditioner.
Control adjustment instruction
An infrared sensing device for sensing whether a target object exists in a room at a certain time interval (e.g., 1 min), sensing a hand temperature and a face temperature of the target object, and calculating a thermal sensing TSV of the current hand and face according to a thermal comfort modelHand (W.E.)And TSVFace (A)Using heat-sensitive TSV of the hands and faceHand (W.E.)And TSVFace (A)The integral thermal sensation of the human body is represented, so that the control of the air conditioner is realized.
And specifically calculating the heat sensing TSV of the whole human body according to data fed back by the infrared sensing equipment.
(1) The infrared sensing device senses a target object and senses a hand temperature and a face temperature of the target object.
(1.1) the cloud platform receives data fed back by the infrared sensing equipment and calculates and outputs heat sensing TSV of hands and facesHand (W.E.)And TSVFace (A)；
(1.2) TSV according to weightHand (W.E.)And TSVFace (A)Calculating the thermal sensing TSV of the whole human body;
TSV= TSVhand (W.E.)×A%+ TSVFace (A)X B%, wherein a% + B% = 100%;
further, as described above, since the sensitivity of the finger to the thermal sensation is high, a > B can be set.
(2) The infrared sensing equipment senses the target object and senses the hand temperature of the target object
(2.1) the cloud platform receives data fed back by the infrared sensing equipment and calculates and outputs heat sensing TSV of the handHand (W.E.)；
(2.2) thermally-induced TSV of the hand at this timeHand (W.E.)And (3) representing the heat-sensitive TSV of the whole human body.
(3) The infrared sensing device senses the target object and senses the face temperature of the target object
(3.1) the cloud platform receives the data fed back by the infrared sensing equipment and calculates and outputs the thermal sensing TSV of the faceFace (A)；
(3.2) thermally-induced TSV of the hand at this timeFace (A)And (3) representing the heat-sensitive TSV of the whole human body.
Referring to fig. 3, after the thermal sensing TSV is acquired in S21, the adjusting module compares the TSV with a preset thermal sensing range, determines a target thermal sensing range to which the TSV belongs, and issues a control adjusting instruction according to the target thermal sensing range.
The control adjustment command described below is explained by taking temperature adjustment as an example.
As described above, the preset thermal sensing range may be divided into the following three ranges according to the TSV: a first range [ -3, -1), a second range [ -1,1], and a third range (1, 3).
S22: when the TSV belongs to the second range, the temperature is moderate at the moment, the air conditioner keeps the current state, and otherwise, the air conditioner enters S23;
s23: and judging whether the TSV is smaller than a second range.
If the TVS is smaller than the second range, namely the TVS belongs to the first range, the cold feeling is stronger, and the adjusting module sends temperature rise compensation to the air conditioner.
If the TVS is larger than the second range, namely the TSV belongs to the third range, the thermal sensation is stronger at the moment, and the adjusting module sends cooling compensation to the air conditioner.
The preset thermal sensing range may also be divided into the following five ranges according to the TSV: a first range of [ -3, -2], a first range of (-2, -1), a third range of [ -1,1], a fourth range (1,2), and a fifth range [2,3 ].
S22': when the TSV belongs to the third range, the temperature is moderate at the moment, the air conditioner keeps the current state, and otherwise, the air conditioner enters S23';
s23': and judging whether the TSV is smaller than a third range.
If the TSV is smaller than the third range, namely the TSV belongs to the first range, the cold feeling is strong at the moment, and the adjusting module sends first temperature rise compensation to the air conditioner.
And when the TSV belongs to the second range, the cold feeling is slightly strong at the moment, and the adjusting module sends second temperature rise compensation to the air conditioner.
The first temperature rise compensated temperature rise step Δ T1 (e.g., +5 deg.C) is greater than the second temperature rise compensated temperature rise step Δ T2 ((e.g., +1 deg.C.).
If the TSV is larger than the third range, namely the TSV belongs to the fourth range, the thermal sensation is stronger, and the adjusting module sends first cooling compensation to the air conditioner.
And when the TSV belongs to the fifth range, the thermal sensation is slightly strong, and the adjusting module sends second cooling compensation to the air conditioner.
The cooling step Δ T3 for the first cooling down compensation (e.g., -1 ℃) is smaller than the cooling step Δ T4 for the second cooling down compensation (e.g., -5 ℃).
The period of the TSV judgment and the control adjustment command issue can be assumed to be 1 min.
In order to avoid frequent adjustment of the air conditioner and increase energy consumption, the adjusting module may send a temperature increasing/decreasing signal to the air conditioner only if the TSVs are all in the same range within, for example, 3 consecutive periods (e.g., 3 min), otherwise, the current state of the air conditioner is maintained.
(4) The infrared sensing device senses the target object but does not sense the hand temperature and the face temperature of the target object
(41) During a period of time, the infrared sensing device senses the target object but does not sense the hand temperature and the face temperature of the target object
For example, the period of time may be set to 10 minutes.
If the infrared sensing equipment senses the target object within 10 minutes but does not sense the hand temperature and the face temperature of the target object, calculating the TSV by adopting the hand temperature and/or the face temperature of the target object sensed last timeHand (W.E.)And/or TSVFace (A)。
According to TSVHand (W.E.)And/or TSVFace (A)The heat-sensitive TSV of the human body as a whole is calculated as described in (1) to (3) above.
(42) For some time away, the infrared sensing device senses the target object, but does not sense the hand temperature and the face temperature of the target object.
If the infrared sensing equipment senses the target object within 10 minutes, but does not sense the hand temperature and the face temperature of the target object, judging that the object needs to be cooled/heated according to the outdoor temperature, and sending a control and adjustment instruction.
Correspondingly needing refrigeration, the control and regulation instruction is a refrigeration mode instruction; and the control regulating instruction is a heating mode instruction corresponding to heating requirement.
A cooling execution instruction or a heating mode instruction may be preset to adjust the indoor temperature to a preset temperature value or a preset temperature range and to adjust the indoor humidity to a preset humidity value or a preset humidity range, for example, the indoor temperature is 26 ℃ during cooling, the indoor temperature is 22 ℃ during heating, and the humidity is 30% to 70%.
According to TSVHand (W.E.)And/or TSVFace (A)The heat-sensitive TSV of the human body as a whole is calculated as described in (1) to (3) above.
(5) The infrared sensing device does not sense the target object
The infrared sensing device does not sense the target object, and specifically, the target object may not be sensed within a continuous period of time (for example, 30 min), and at this time, it indicates that no person is in the room, and issues a control and adjustment instruction, and directly controls the air conditioner to shut down.
The air conditioner control system provided by the application utilizes the infrared sensing equipment to sense the target object, the hand temperature and the face temperature of the target object, does not directly contact with the skin of a user, does not cause pressure on the psychology of the user, and can accurately reflect the thermal sensation of the user.
The thermal comfort model between the hand temperature and the face temperature and the TSV is established by utilizing the strong computing power of the cloud platform, data processing is fast, computing resources of the air conditioner are not occupied, and control timeliness of the air conditioner is not affected.
The cloud platform can acquire the data sensed by the infrared sensing equipment, can collect user adjustment data of the air conditioner by a user through the terminal, updates the thermal comfort model, realizes the updating of user comfort control, and realizes the intelligent control of the air conditioner.
And, the hot comfortable model is with the hand temperature and the face temperature of target object as input parameter, and hand temperature and face temperature can respond to the condition of the cold and hot perception of target object to the environment sensitively, promotes user and uses experience.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions.
Claims (9)
1. An air conditioning control system, comprising:
an infrared sensing device for sensing a target object, a hand temperature and a face temperature of the target object;
the cloud platform is used for establishing a thermal comfort model between the hand temperature and the face temperature and the TSV, and further comprises an adjusting module;
the adjusting module is configured to issue a control adjusting instruction to the air conditioner according to the data fed back by the infrared sensing equipment.
2. The air conditioner control system according to claim 1, wherein the adjusting module is configured to issue a control adjusting instruction to the air conditioner according to the data fed back by the infrared sensing device, specifically:
when the hand temperature and/or the face temperature fed back by the infrared sensing equipment are received in real time, the adjusting module acquires the TSV corresponding to the hand temperature according to the thermal comfort modelHand (W.E.)And/or TSV corresponding to facial temperatureFace (A)And sends control and regulation instructions to the air conditioner;
when the target object is sensed and the hand temperature and the face temperature are not received within a first preset time period, the adjusting module keeps the TSV of the hand temperature sensed last timeHand (W.E.)And/or TSV corresponding to facial temperatureFace (A)And sends control and regulation instructions to the air conditioner;
when the target object is sensed and the hand temperature and the face temperature are not received within a first preset time period, the adjusting module issues a cooling mode instruction or a heating mode instruction to the air conditioner;
and when the target object is not sensed in a second preset time period, the adjusting module issues a shutdown instruction to the air conditioner.
3. The air conditioning control system according to claim 2,
when the hand temperature and/or the face temperature fed back by the infrared sensing equipment are received in real time, the adjusting module acquires the TSV corresponding to the hand temperature according to the thermal comfort modelHand (W.E.)And/or TSV corresponding to facial temperatureFace (A)Issuing a control and regulation instruction, which specifically comprises the following steps:
if the hand temperature and the face temperature are received, the adjusting module calculates TSV according to the weightHand (W.E.)And TSVFace (A)Summing to obtain a TSV1, and comparing the TSV1 with a preset thermal sensing range to determine a target thermal sensing range affiliated to the TVS 1; issuing a control and regulation instruction according to the target thermal sensation range;
if the hand temperature is received, the adjusting module adjusts the hand temperature according to the TSVHand (W.E.)Comparing with the preset thermal sensing range to determine TSVHand (W.E.)A subordinate target heat sensation range; issuing a control and regulation instruction according to the target thermal sensation range;
if the face temperature is received, the adjusting module adjusts the face temperature according to the TSVFace (A)Comparing with the preset thermal sensing range to determine TSVFace (A)A subordinate target heat sensation range; and issuing the control and regulation instruction according to the target thermal sensing range.
4. The air conditioning control system according to claim 3, wherein the predetermined thermal sensing ranges include a first range [ -3, -2], a second range (-2, -1), a third range [ -1,1], a fourth range (1,2), and a fifth range [2,3 ];
in TSV1, TSVHand (W.E.)Or TSVFace (A)When the air conditioner belongs to a first range and is kept for a certain time, first temperature rise compensation is sent to the air conditioner;
in TSV1, TSVHand (W.E.)Or TSVFace (A)Sending a second temperature rise compensation to the air conditioner when the air conditioner belongs to a second range and is kept for a certain time;
in TSV1, TSVHand (W.E.)Or TSVFace (A)Belonging to a third range and maintaining the current running state of the air conditioner;
in TSV1, TSVHand (W.E.)Or TSVFace (A)When the air conditioner belongs to a fourth range and is kept for a certain time, first cooling compensation is sent to the air conditioner;
in TSV1, TSVHand (W.E.)Or TSVFace (A)And sending a second cooling compensation to the air conditioner when the air conditioner belongs to the fifth range and is kept for a certain time.
5. The air conditioning control system according to claim 2,
when the target object is sensed and the hand temperature and/or the face temperature are not received within a first preset time period, the adjusting module issues a cooling mode instruction or a heating mode instruction according to the outdoor temperature so as to adjust the indoor temperature within a preset temperature range and adjust the indoor humidity within a preset humidity range.
6. The climate control system of claim 1, wherein the cloud platform comprises:
a data pre-set module for pre-setting a thermal comfort model, wherein data for the thermal comfort model is from a thermal comfort subjective questionnaire of a large number of users.
7. The air conditioning control system according to claim 6,
and establishing the thermal comfort model by adopting a random forest algorithm.
8. The climate control system of claim 6, wherein the cloud platform further comprises:
the data updating module is used for acquiring user adjustment data for controlling the air conditioner through an application program loaded on a terminal, and the terminal is in communication connection with the cloud platform;
and the data updating module updates the data used for the thermal comfort model according to the user regulation data, the indoor temperature, the indoor humidity, the ambient temperature, the hand temperature and the face temperature, and the TSV under the current environment.
9. The climate control system of claim 8, wherein the cloud platform further comprises:
a data filtering module for filtering invalid data in the indoor temperature, indoor humidity, ambient temperature, hand temperature and face temperature.
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