CN216384514U - Full-automatic energy-saving control device for indoor thermal environment - Google Patents
Full-automatic energy-saving control device for indoor thermal environment Download PDFInfo
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- CN216384514U CN216384514U CN202121779987.3U CN202121779987U CN216384514U CN 216384514 U CN216384514 U CN 216384514U CN 202121779987 U CN202121779987 U CN 202121779987U CN 216384514 U CN216384514 U CN 216384514U
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- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
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Abstract
The utility model provides a full-automatic energy-saving control device for indoor thermal environment, comprising: the air parameter detection device comprises an air parameter detection unit, a main control module, an air conditioner control module and a fan control module; the main control module is respectively connected with the air parameter detection unit, the air conditioner control module and the fan control module; the air conditioner control module is used for prestoring an infrared code of an air conditioner remote controller and controlling an air conditioner operation mode; the fan control module is used for prestoring an infrared code of a fan remote controller and controlling the running mode of the fan; the optimal combination of the air conditioner temperature and the fan rotating speed can be quickly found, and the requirement of people on the indoor thermal environment comfort level can be quickly met.
Description
Technical Field
The utility model relates to a full-automatic energy-saving control device for an indoor thermal environment.
Background
The increasing building energy consumption is an important component of energy consumption structure in China, wherein the air conditioner energy consumption accounts for about 40% of the total energy consumption of the building. On the premise of ensuring thermal comfort, a way for reducing the energy consumption of the air conditioner or a way for replacing the energy consumption is sought, and the method is an important measure for realizing energy conservation of buildings.
The current indoor thermal environment control equipment in summer mainly comprises an air conditioner and an electric fan. The air conditioning system uses refrigerant to compress, condense, expand and evaporate the refrigerant repeatedly in a closed refrigeration system, and absorbs heat and vaporizes continuously at an evaporator to perform refrigeration and cooling. The higher the air conditioner set temperature is, the closer to the outdoor temperature is, the smaller the power consumption of the air conditioner compressor is. The electric fan rotates by utilizing the stress of the electrified coil in a magnetic field, so that the fan blades rotate, the household appliance for accelerating the circulation of air is achieved, and the effect of circulating air is achieved. The electric fan has simple working principle, can improve indoor heat comfort to a certain extent, and is more energy-saving compared with an air conditioner.
However, the use of air conditioning systems can achieve a suitable level of thermal comfort indoors, but at the expense of higher energy consumption; the electric fan is adopted to cool, the energy consumption is low, but the indoor temperature can not be reduced under the condition of high indoor temperature in the heat summer, and the indoor heat comfort level which can be achieved is very limited. The current ventilation air conditioning system mainly takes the temperature of an air return inlet of the air conditioner as a target for controlling the indoor thermal environment, the deviation between the temperature of the air return inlet and the temperature of an actual indoor personnel working area is ignored, and other indoor air parameters such as air flow rate and the like in different relative humidity environments also have influence on thermal comfort of a human body. If the requirements of comfort level and energy conservation are simultaneously met, the set temperature of the air conditioner and the rotating speed of the fan are required to be respectively adjusted manually. This kind of regulation mode needs to rely on the individual to feel repeatedly the combination collocation between different air temperature and air velocity and look for comfortable set value, and the process is loaded down with trivial details and inaccurate, is difficult to under the prerequisite of guarantee thermal comfort, reaches best energy-conserving effect.
SUMMERY OF THE UTILITY MODEL
The technical problem to be solved by the utility model is to provide a full-automatic energy-saving control device for an indoor thermal environment, which overcomes the problems that the energy consumption of an air conditioner is high, an electric fan cannot realize thermal comfort of a human body at an indoor state point with high temperature, and the defects that the control of the indoor thermal environment mainly through air conditioning equipment usually only takes the air temperature as a control target.
The utility model is realized by the following steps: a full-automatic energy-saving control device for an indoor thermal environment comprises an air parameter detection unit, a main control module, an air conditioner control module and a fan control module;
the main control module is respectively connected with the air parameter detection unit, the air conditioner control module and the fan control module;
the air conditioner control module is used for prestoring an infrared code of an air conditioner remote controller and controlling an air conditioner operation mode;
and the fan control module is used for prestoring the infrared codes of the fan remote controller and controlling the running mode of the fan.
Further, the intelligent terminal also comprises an operation input module, wherein the operation input module is connected to the main control module.
Furthermore, the display device also comprises a display module, and the display module is connected with the main control module.
Further, the air parameter detection unit comprises a temperature and humidity sensor and an air speed sensor, and the temperature and humidity sensor and the air speed sensor are connected to the main control module.
The utility model has the advantages that: the indoor temperature, the air flow rate and the relative humidity are detected in real time, the air conditioner and the fan are controlled reasonably in a linkage mode by taking the comfort level of a human body as a control target, the effect of the electric fan on the aspect of controlling the comfort level of an indoor thermal environment is enhanced through the mode of adjusting the air of the fan to assist the air conditioner, the set temperature of the indoor air conditioner is properly increased, the energy consumption of the air conditioner is effectively reduced, the energy conservation of a building is realized, and the carbon emission is reduced. Meanwhile, under the microsecond-level logic operation speed of the main control module, the optimal combination of the air conditioner temperature and the fan rotating speed can be quickly found, and the requirement of people on the comfort level of the indoor thermal environment is quickly met.
Drawings
The utility model will be further described with reference to the following examples with reference to the accompanying drawings.
Fig. 1 is a schematic diagram of a full-automatic energy-saving control device for an indoor thermal environment according to the present invention.
Fig. 2 is a schematic diagram of a full-automatic energy-saving control device for an indoor thermal environment according to the present invention.
Fig. 3 is a layout diagram of a full-automatic energy-saving control device for indoor thermal environment of the utility model.
Detailed Description
As shown in fig. 1, 2 and 3, the full-automatic energy-saving control device for indoor thermal environment of the present invention includes an air parameter detection unit 1, an operation input module 2, a main control module 3, an air conditioner control module 4, a fan control module 5 and a display module 6.
The air parameter detection unit 1 is used for detecting the indoor temperature TsAir velocity VsThe air parameter detection unit 1 specifically comprises a temperature and humidity sensor 11 and a wind speed sensor 12, and is usually placed in an indoor working area and is as close to people as possible;
the operation input module 2 is used for setting the starting temperature T of the fanfAir conditioner starting temperature TaThe parameters are equal, a user-defined mode is saved, the air conditioner control module and the fan control module are set to enter a learning mode, whether the energy-saving mode is started or not is selected, and the parameters can be specifically key input, a touch screen and the like;
the main control module 3 is used for receiving input signals such as detected air parameters and operation input, taking human thermal comfort as a control target, and outputting control signals to the air conditioner control module 4 and the fan control module 5 so as to control an air conditioner and a fan, and specifically can be an AT89C52 singlechip or an STM32 singlechip and the like;
the air conditioner control module 4 is used for controlling the operation mode (such as but not limited to starting, stopping, temperature setting and the like) of an air conditioner, infrared codes of air conditioner remote controllers of most mainstream brands on the market are prestored in the air conditioner control module, if the infrared codes cannot be matched with the air conditioner in advance, the air conditioner control module can enter a learning mode through the operation input module 2, an original air conditioner remote controller is aligned to the air conditioner remote controller module, keys such as starting, stopping and temperature setting are pressed for learning, the infrared codes of the keys are sequentially stored by the air conditioner control module, and finally the infrared codes are classified and stored in a user-defined air conditioner remote control mode, and the air conditioner control module 4 can be composed of STC11F02E-SOP16 or STC8F1K08 and other chips serving as a main control chip;
the fan control module 5 is used for controlling the operation modes (such as but not limited to starting, stopping, rotating speed gear adjustment and the like) of the fan, infrared codes of fan remote controllers of most mainstream brands on the market are prestored in the fan control module, if the fan remote controllers cannot be matched with the electric fan in advance, the fan control module can enter a learning mode through operating the input module 2, the original fan remote controllers are aligned to the fan control module, keys such as starting, stopping and rotating speed gear adjustment are pressed for learning, the infrared codes of the keys are sequentially stored by the fan control module, and finally the infrared codes are classified and stored in a user-defined fan remote control mode, and the fan control module 5 can be composed of STC11F02E-SOP16 or STC8F1K08 and other chips as a main control chip;
the display module 6 is used for displaying the temperature TsAir velocity VsRelative humidity RH, fan start temperature TfAir conditioner starting temperature TaAnd so on.
Referring to fig. 1, 2 and 3, after the device of the present invention is turned on, the input module 2 is operated to select to enter the full-automatic energy-saving control mode, and the device adjusts the air conditioner and the fan in a linkage manner according to the quantitative index of human body thermal comfort calculated by the main control module 3. The embodiment of the utility model controls according to the PMV thermal comfort evaluation index which is most representative in the related research of the thermal comfort evaluation method. The PMV index comprehensively considers factors such as indoor environment factors including air temperature, air flow rate, relative humidity, average radiation temperature and the like, human body indexes such as human body metabolic rate, clothing thermal resistance and the like, and reflects the comfortable feeling of most people in the same environment. When the absolute PMV is less than or equal to 0.5, the human body is in a first-level thermal comfort level. The air conditioner setting temperature is increased by increasing the air flow rate by using the electric fan, and the PMV is closer to 0.5, so that the energy saving is more beneficial.
The PMV calculation process can refer to 'evaluation standard for indoor heat and humidity environment of civil buildings' GB50785-2012, the required indoor environment parameters in the calculation process are obtained through an air parameter monitoring unit, and the average radiation temperature is approximately simplified into the indoor air temperature plus 2 by considering the temperature of the inner surface of the enclosure structure in summerDEG C. The required human body index is approximately processed according to the activity condition and the dressing condition of the human body under different occasions, for example, the human body metabolic rate of sitting activity (standing rest) in common office environment is 70W/m2The external work consumption W is 0, and the thermal resistance of the clothing of the summer conventional clothing is 0.5 clo.
And (3) taking the temperature T, the air flow velocity V and the relative humidity RH as input parameters and control quantities to carry out thermal comfort control logic design. Although a small number of air conditioners are controlled by using a PMV index algorithm at present, measuring points of indoor air parameters are located near an air return opening of the air conditioner, the thermal environment of an indoor personnel working area cannot be accurately represented, and a calculation result has large deviation. The device is small in size, convenient and fast to move, capable of being placed in an indoor personnel working area, and the control result of the device is closer to human body heat and comfortable. According to the different indoor thermal environment conditions, the human body thermal comfort quantitative index calculated by the main control module 3 controls the air conditioner and the fan through the air conditioner control module 4 and the fan control module 5, and the energy consumption generated by adjusting the indoor thermal environment is reduced on the premise of ensuring the indoor human body thermal comfort.
After the energy-saving control mode is started, when the air parameter detection unit 1 detects the indoor temperature TsLower than the fan start temperature T set by the operation input module 2f(for example, 26 ℃) is selected, the device sends control signals to the air conditioner control module 4 and the fan control module 5, and the air conditioner and the fan are closed. The device enters a monitoring state, indoor air parameters are monitored in real time, and corresponding control actions are timely made if the indoor thermal environment changes.
When the air parameter detecting unit 1 detects the indoor temperature TsLower than the air conditioner starting temperature T set by the operation input module 2a(example selected at 28 ℃) and above the fan start temperature Tf(example, 26 ℃ C.) the apparatus turns on the fan through the fan control module 5. The main control module 3 detects the indoor temperature T in real time according to the air parameter detection unit 1sIndoor relative humidity RH, and the target air flow velocity V which is most consistent with the comfort degree at present is calculated through PMV indexesmTo thereby output a control signal to the fan control module 5Further controlling the fan to reach the corresponding speed gear to make the air velocity V of the working areasNear target air velocity VmAnd correcting in real time. The fan can be better kept at the optimal rotating speed or rotating speed gear by detecting the air flow rate of the working area as feedback, and finally, the control result is more in line with the requirement of human body thermal comfort; the air parameter detection unit 1 monitors whether the indoor thermal environment changes in real time, and if the indoor thermal environment changes, corresponding adjustment is timely made to guarantee the stability of thermal comfort.
When the air parameter detecting unit 1 detects the indoor temperature TsHigher than the air conditioner opening temperature T set by the operation input module 2a(example selected at 28 ℃), the device turns on the air conditioner and fan. The air conditioner lowers and maintains the indoor temperature at Ta(28 ℃), and simultaneously controlling the rotating speed of the fan in real time to ensure that the air flow velocity V of the working areasTarget air velocity V close to the most comfortablem. In the process of reducing the indoor temperature by the air conditioner, a period of cold air diffusion is needed, and the device can detect the indoor temperature T in real timesAnd relative humidity RH, and the rotating speed of a corresponding fan is controlled on the premise of ensuring the environment comfort to accelerate indoor air flow and strengthen heat exchange. Along with the reduction of the indoor temperature, the rotating speed of the fan is gradually reduced from high, and the adjustment process is ensured to avoid transient and local overlarge blowing feeling as much as possible. The air parameter detection unit 1 monitors whether the indoor thermal environment changes in real time, and if the indoor thermal environment changes, corresponding adjustment is timely made to guarantee the stability of thermal comfort.
Compared with the method that only the air conditioner is adopted for refrigeration, the indoor temperature is properly set to be increased by taking the measure of adjusting the air by the electric fan in the air-conditioned room, and the requirement of thermal comfort of the human body can still be met, so the starting temperature T of the air conditioneraThe temperature can be set by increasing 1-2 ℃ based on the set temperature when only the air conditioner is used daily. The device of the utility model can realize full-automatic energy-saving control, strengthen the wind adjusting function of the electric fan, improve the set temperature of the air conditioner and realize the energy-saving control of the indoor thermal environment of the building to a greater degree on the premise of achieving the same thermal comfort.
The comfort level of the indoor thermal environment is subjective, and a control mode cannot meet the requirement necessarilyThermal comfort requirements for all groups. For the group whose control result deviates from the own thermal comfort requirement, the device-related parameters can be adjusted by operating the input module 2. For people with a control result feeling hot, the starting temperature T of the air conditioner can be adjusted downaOr lowering the fan start temperature TfOr increasing the final wind speed of the fan or adjusting the above 3 parameters simultaneously; for people with cold control result, the starting temperature T of the air conditioner can be increasedaOr increase the fan start temperature TfOr reduce the fan 'final wind speed' or adjust the above 3 parameters simultaneously. Meanwhile, the device also has a memory function, and a user can save the current comfortable air conditioner starting temperature T by one key through operating the input module 2aFan starting temperature TfThe parameters such as final temperature, final wind speed and the like are stored in a self-defined mode, and the corresponding self-defined mode can be directly called when the wind turbine is used next time, so that the requirements of different users on indoor thermal environments on different occasions are met. The number of groups that can be saved in the "custom mode" can be set according to the size of the storage space of the device, and is not limited.
The air parameter detecting unit is, for example and without limitation, one or more of a temperature sensor, a wind speed sensor and a humidity sensor, and the detected air parameters are, for example and without limitation, indoor air temperature, air flow rate, air relative humidity and the like which affect human thermal comfort indexes;
the air parameter detection unit is placed in different places close to a human body working area, such as an office table of an office, a tea table of a residential living room, a bed head of a bedroom and a safe position near a factory operating table, and the comfort level and the energy-saving effect are more obvious in the case of larger human body activity;
the air parameter detection unit is connected with the main control module in a wired connection or a wireless connection;
the operation input module is used for example but not limited to key input, touch screen input, language input and the like;
the operation input module is connected with the main control module in a wired or wireless way;
the main control module is such as but not limited to a single chip microcomputer;
the human body thermal comfort indexes calculated by the main control module are indexes quantitatively representing human body thermal comfort states in different occasions, such as but not limited to PMV-PPD, SET, ASHRAE scales, ISO standards, Bezier scales and the like;
the operation input module, the display module and the control module can be matched with different platforms without limitation, such as but not limited to one or more of a PC, a mobile phone APP, a WeChat applet and the like;
the air conditioner control module is used for controlling an air conditioner mode (such as but not limited to starting, stopping, temperature setting and the like), and the function implementation mode is such as but not limited to infrared control, frequency emission control and the like;
the fan control module is used for controlling fan modes (such as but not limited to starting, stopping, setting of rotating speed gears and the like), and the function implementation mode is such as but not limited to infrared control, frequency control, relay control and the like;
the air conditioner control module, the fan control module and the main control module are connected in a wired connection or a wireless connection;
the control object of the air conditioner control module can utilize the existing equipment, and can also be added with air conditioning equipment, such as but not limited to various centralized air conditioners, semi-centralized air conditioners, distributed air conditioners and the like;
the control object of the fan control module can utilize the existing equipment, and can also be added with fan equipment, such as but not limited to various ceiling fans, floor fans, wall fans, oscillating fans, bladeless fans and the like;
such as, but not limited to, a liquid crystal display, a touch screen display, a digital tube, etc.
The utility model relates to a full-automatic energy-saving control device for an indoor thermal environment, which comprises an air parameter detection unit 1, a main control module 3, an air conditioner control module 4 and a fan control module 5;
the main control module 3 is respectively connected with the air parameter detection unit 1, the air conditioner control module 4 and the fan control module 5;
the air conditioner control module 4 is used for prestoring an infrared code of an air conditioner remote controller and controlling an air conditioner operation mode;
and the fan control module 5 is used for prestoring an infrared code of a fan remote controller and controlling the running mode of the fan.
In another preferred embodiment, the system further comprises an operation input module 2, and the operation input module 2 is connected to the main control module 3.
In another preferred embodiment, the system further comprises a display module 6, and the display module 6 is connected to the main control module 3.
In another preferred embodiment, the air parameter detecting unit 1 includes a temperature and humidity sensor 11 and an air speed sensor 12, and the temperature and humidity sensor 11 and the air speed sensor 12 are both connected to the main control module 3.
The control method of the utility model specifically comprises the following steps:
the air parameter detection unit 1 detects indoor temperature and relative humidity in real time;
when the air parameter detection unit 1 detects that the indoor temperature is lower than the set air conditioner starting temperature and higher than the fan starting temperature, the main control module 3 starts the fan through the fan control module 5; the main control module 3 calculates a target air flow rate which is most consistent with the comfort degree at present through a PMV index according to the indoor temperature and the indoor relative humidity detected by the air parameter detection unit 1 in real time, so as to output a control signal to the fan control module 5, and control the fan to reach a corresponding rotating speed gear so that the air flow rate of a working area is closest to the target air flow rate;
when the air parameter detection unit 1 detects that the indoor temperature is greater than or equal to the set air conditioner starting temperature, the main control module 3 respectively starts the air conditioner and the fan through the air conditioner control module 4 and the fan control module 5, so that the indoor temperature is reduced and kept at the air conditioner starting temperature, meanwhile, the main control module 3 calculates a target air flow rate which is most consistent with the comfort degree at present through a PMV index according to the indoor temperature and the indoor relative humidity detected by the air parameter detection unit 1 in real time, so that a control signal is output to the fan control module 5, and the fan is controlled to reach a corresponding rotating speed gear to enable the air flow rate of a working area to be most close to the target air flow rate;
when the air parameter detection unit 1 detects that the indoor temperature is less than or equal to the fan starting temperature, the air conditioner is not started, and the fan is not started.
In another preferred embodiment, the system further comprises an operation input module 2, wherein the operation input module 2 is connected to the main control module 3; inputting the starting temperature of the air conditioner and the starting temperature of the fan through the operation input module 2, and storing the starting temperatures to the main control module 3; and the air conditioner control module and the fan control module are controlled to enter a learning mode through the operation input module.
In another preferred embodiment, the system further comprises a display module 6, wherein the display module 6 is connected with the main control module 3; the device is used for displaying the temperature, the air flow rate, the relative humidity, the fan starting temperature, the air conditioner starting temperature and whether the air conditioner and the fan control module are in a learning mode or not and a current learning state, wherein the current learning state is whether the infrared learning of the air conditioner control module and the fan control module is successful or not.
In another preferred embodiment, the air parameter detecting unit 1 includes a temperature and humidity sensor 11 and an air speed sensor 12, and both the temperature and humidity sensor 11 and the air speed sensor 12 are connected to the main control module 3; the temperature and humidity sensor 11 is used for collecting temperature and relative humidity and sending the temperature and relative humidity to the main control module 3; the wind speed sensor 12 is used for collecting the air flow rate and sending the air flow rate to the main control module 3.
In another preferred embodiment, the air conditioner control module 4 is configured to control an operation mode of an air conditioner, where the operation mode includes start, stop, and temperature setting, the air conditioner control module 4 prestores infrared codes of an air conditioner remote controller, and if the prestores cannot adapt to the air conditioner, the air conditioner control module is set to enter a learning mode, the originally-equipped air conditioner remote controller is aligned to the air conditioner control module, a key is pressed down to learn, and the air conditioner control module 4 sequentially stores the infrared codes of the key;
in another preferred embodiment, the fan control module 5 is configured to control an operation mode of the fan, where the operation mode includes start, stop, and gear adjustment of a rotation speed, the fan control module 5 prestores infrared codes of a fan remote controller, and if the prestored fan remote controller cannot be adapted to the electric fan, the fan control module is set to enter a learning mode, the originally-configured fan remote controller is aligned to the module, a key is pressed to learn, and the module stores the infrared codes of the key in sequence.
Although specific embodiments of the utility model have been described above, it will be understood by those skilled in the art that the specific embodiments described are illustrative only and are not limiting upon the scope of the utility model, and that equivalent modifications and variations can be made by those skilled in the art without departing from the spirit of the utility model, which is to be limited only by the appended claims.
Claims (3)
1. The utility model provides a full-automatic energy-saving control device of indoor thermal environment which characterized in that: the air parameter detection device comprises an air parameter detection unit, a main control module, an air conditioner control module and a fan control module;
the main control module is respectively connected with the air parameter detection unit, the air conditioner control module and the fan control module;
the air conditioner control module is used for prestoring an infrared code of an air conditioner remote controller and controlling an air conditioner operation mode;
the fan control module is used for prestoring an infrared code of a fan remote controller and controlling the running mode of the fan;
the air parameter detection unit comprises a temperature and humidity sensor and an air speed sensor, and the temperature and humidity sensor and the air speed sensor are connected to the main control module.
2. The full-automatic energy-saving control device for indoor thermal environment of claim 1, characterized in that: the intelligent control system also comprises an operation input module, wherein the operation input module is connected to the main control module.
3. The full-automatic energy-saving control device for indoor thermal environment of claim 1, characterized in that: the display module is connected with the main control module.
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| CN202121779987.3U CN216384514U (en) | 2021-08-02 | 2021-08-02 | Full-automatic energy-saving control device for indoor thermal environment |
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| CN202121779987.3U CN216384514U (en) | 2021-08-02 | 2021-08-02 | Full-automatic energy-saving control device for indoor thermal environment |
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