KR20170055801A - Interior zone divisional environment management system of cow house using temperature humidity index and apparatus - Google Patents
Interior zone divisional environment management system of cow house using temperature humidity index and apparatus Download PDFInfo
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- KR20170055801A KR20170055801A KR1020150159033A KR20150159033A KR20170055801A KR 20170055801 A KR20170055801 A KR 20170055801A KR 1020150159033 A KR1020150159033 A KR 1020150159033A KR 20150159033 A KR20150159033 A KR 20150159033A KR 20170055801 A KR20170055801 A KR 20170055801A
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- humidity
- humidity index
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- 241000283690 Bos taurus Species 0.000 claims abstract description 29
- 238000000034 method Methods 0.000 claims abstract description 18
- 238000007726 management method Methods 0.000 claims description 24
- 239000003595 mist Substances 0.000 claims description 17
- 238000007664 blowing Methods 0.000 claims description 16
- 238000005507 spraying Methods 0.000 claims description 11
- 239000007921 spray Substances 0.000 claims description 9
- 230000007613 environmental effect Effects 0.000 claims description 8
- 238000009395 breeding Methods 0.000 claims description 5
- 230000001488 breeding effect Effects 0.000 claims description 5
- 238000004364 calculation method Methods 0.000 claims description 5
- 238000002485 combustion reaction Methods 0.000 claims 1
- 238000005259 measurement Methods 0.000 abstract description 2
- 238000005192 partition Methods 0.000 abstract 1
- 238000000638 solvent extraction Methods 0.000 abstract 1
- 230000035882 stress Effects 0.000 description 13
- 238000009423 ventilation Methods 0.000 description 9
- 230000008642 heat stress Effects 0.000 description 7
- 244000144972 livestock Species 0.000 description 7
- 230000005540 biological transmission Effects 0.000 description 4
- 235000013365 dairy product Nutrition 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 230000014509 gene expression Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000000384 rearing effect Effects 0.000 description 2
- 230000008646 thermal stress Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000003213 activating effect Effects 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 235000015278 beef Nutrition 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006353 environmental stress Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000008267 milk Substances 0.000 description 1
- 235000013336 milk Nutrition 0.000 description 1
- 210000004080 milk Anatomy 0.000 description 1
- 230000001473 noxious effect Effects 0.000 description 1
- 244000144977 poultry Species 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K1/00—Housing animals; Equipment therefor
- A01K1/0047—Air-conditioning, e.g. ventilation, of animal housings
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K1/00—Housing animals; Equipment therefor
- A01K1/0047—Air-conditioning, e.g. ventilation, of animal housings
- A01K1/0052—Arrangement of fans or blowers
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K1/00—Housing animals; Equipment therefor
- A01K1/0047—Air-conditioning, e.g. ventilation, of animal housings
- A01K1/0076—Arrangement of heaters or heat exchangers
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K1/00—Housing animals; Equipment therefor
- A01K1/0047—Air-conditioning, e.g. ventilation, of animal housings
- A01K1/0082—Water misting or cooling systems
-
- 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
- F24F11/0001—Control or safety arrangements for ventilation
-
- F24F11/0012—
-
- F24F11/0015—
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Zoology (AREA)
- Animal Husbandry (AREA)
- Biodiversity & Conservation Biology (AREA)
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Housing For Livestock And Birds (AREA)
- Air Conditioning Control Device (AREA)
Abstract
Description
The present invention relates to a method and an apparatus for internal divided type environment management using a temperature and humidity index capable of dividing the inside of a barn into sub-zones and controlling the same.
Previously, the criterion for controlling poultry facilities such as ventilation facilities or managing livestock was the internal temperature of the house. However, among the elements constituting the thermal environment, humidity is as important as the temperature, and the sensible temperature varies rapidly with the change of humidity even at the same temperature.
Unlike other livestock, cows are strong in cold weather, but in hot summer, they are sensitive to stress due to high temperature. In a hot and humid climate like our country, problems such as reduced milk production and reduced breeding ability arise.
In addition to temperature, humidity also affects dairy cow stress. According to the study data, the degree of stress of the cow can be predicted according to the temperature and humidity index based on the temperature and humidity inside the barn.
The role of the ventilation fan is to generate air flow in a certain direction to lower the temperature of the body surface or to reduce the humidity by discharging the moisture inside the inner surface to the outside. The ventilation fans in most farms are installed at a constant speed and in one direction.
As livestock farms become larger, each zone in the Usa, especially in the area of temperature and humidity, is unbalanced by area. This is because it is difficult to make all the zones the same environment by controlling the blower uniformly because the temperature and the humidity are different according to the direction of the wind, the position of the sun, the radiation amount, the angle of incidence and the position of the bar.
This unbalance of temperature and humidity in each individual zone may also affect the state of the cow, so it must be controlled through appropriate means.
The background art of the present invention is disclosed in Korean Patent Registration No. 10-0156292.
According to the present invention, a temperature and humidity index is calculated for each area divided into small areas within a barn, and the blowing fan and the humidity providing device for each area are controlled individually to provide a comfortable environment in which the cow and the barnyard are free from heat stress And a method and an apparatus for managing a housing environment using a temperature and humidity index capable of providing a temperature and humidity index.
The objects of the present invention are not limited to the above-mentioned objects, and other objects not mentioned can be clearly understood from the following description.
According to an aspect of the present invention, there is provided a method for controlling the environment of a barbie in an inner dividing type environment management apparatus of a barbell, the method comprising the steps of: a) a control section of the divide type environment management apparatus is divided from a sensing input section by a certain area of the barb, Receiving temperature and humidity conditions at each point from a temperature and humidity sensor installed at each point in the zone; b) calculating a temperature and humidity index from the input temperature and humidity condition of the divided environmental management apparatus; the control unit compares the measured temperature and humidity index with the appropriate temperature and humidity index set for each point from the temperature and humidity index, and selects the facility equipment for each branch for changing the difference from the difference to the appropriate temperature and humidity index for each input point, Determining a control value; And d) sending the drive control value to the facility equipment at a point selected according to a drive control value of the facility equipment by the control unit; And an internal division type environment management method using the temperature and humidity index.
According to one embodiment of the present invention, the values measured based on the divided areas of temperature and humidity inside the barrel are controlled and controlled locally according to the facility equipment for controlling the temperature and humidity of each divided area, Humidity environment.
According to one embodiment of the present invention, since the temperature and humidity can be measured for each zone and the blowing fan and the mist spraying device can be controlled, better environmental conditions can be provided and unnecessary energy consumption can be reduced.
FIG. 1 is a view schematically showing a structure of an internal partitioned type environment management apparatus according to an embodiment of the present invention.
FIG. 2 is a block diagram of a control apparatus among the internal partitioned environment management apparatuses according to an embodiment of the present invention.
FIG. 3 illustrates an example of an inner partitioned environment management method of a corporation that controls a corporation environment according to an embodiment of the present invention.
4 shows an example of the structure of a blower device according to another embodiment of the present invention.
The terminology used in this application is used only to describe a specific embodiment and is not intended to limit the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise.
In the present application, when a component is referred to as "comprising ", it means that it can include other components as well, without excluding other components unless specifically stated otherwise.
It is also to be understood that the terms first, second, etc. used hereinafter are merely reference numerals for distinguishing between identical or corresponding components, and the same or corresponding components are defined by terms such as first, second, no.
The sizes and thicknesses of the respective components shown in the drawings are arbitrarily shown for convenience of explanation, and thus the present invention is not necessarily limited to those shown in the drawings.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT Hereinafter, an embodiment of a method and an apparatus for internal divided environment management using a temperature and humidity index according to the present invention will be described in detail with reference to the accompanying drawings. In the following description, The same reference numerals are assigned to the same elements and a duplicate description thereof will be omitted.
FIG. 1 is a view schematically showing a structure of an internal partitioned type environment management apparatus according to an embodiment of the present invention.
FIG. 2 is a block diagram of a control apparatus among the internal partitioned environment management apparatuses according to an embodiment of the present invention.
Referring to FIGS. 1 and 2, the inner partitioned type environment management device of the present invention according to the embodiment of the present invention receives sensed data from a temperature and
According to an embodiment of the present invention, the divided area is divided into an environmental management area on the basis of a cow area of 4 to 5 cows, and a temperature and
According to one embodiment of the present invention, the installation of the in-house temperature /
According to an embodiment of the present invention, the sensing signal of the intra-company temperature /
The installation can be installed above the height of the cow so as to prevent breakage due to contact with the cow.
The blowing
FIG. 3 illustrates an example of an inner partitioned environment management method of a corporation that controls a corporation environment according to an embodiment of the present invention.
First, the
The
In addition, specific input conditions such as a management condition and a user command are input from the
For example, an additive value condition for adding or subtracting the appropriate temperature and humidity index value set according to the surrounding environment such as rainy season, heavy rain, and the number of breeding dishes in the barn can be inputted from the
Next, the temperature and humidity
The effect of heat stress on the cow can be evaluated by the temperature and humidity index. The temperature and humidity index corresponds to the discomfort index of a person and is expressed by a combination of temperature and humidity. The calculation formula may be applied differently for each livestock type.
In the temperature and humidity index calculation section, a formula for calculating the temperature and humidity index (THI) that can be applied for each type of breeding stage is built in.
Various experiments on the heat stress of livestock are caused by environmental factors. Environmental factors include not only the temperature but also the relative humidity and radiant heat itself.
However, since the available data are limited, and the self-generated heat is difficult to form in a certain pattern, the thermal stress temperature and humidity index (hereinafter referred to as "THI"), which affects the development and rearing of livestock, .
For example, in the case of cattle or dairy cows, the heat stress temperature and humidity index can be obtained from the following THI calculation formula based on measured temperature and relative humidity.
The temperature and humidity index (THI) of the cow = (0.8 × temperature) + [relative humidity × (temperature -14.4)] + 46.4
The stress intensity with respect to the calculated temperature and humidity index according to an embodiment of the present invention is as follows.
Temperature and humidity index 72 and above: begin to feel high temperature stress
Temperature and Humidity Index 72 ~ 77: Conditions under stress
Temperature and Humidity Index 78 ~ 88: Steel Stress State
Temperature and Humidity Index 89 ~ 96: Severe stress condition
Temperature and Humidity Index 97 or higher: It will lead to our company
Cows are reported to suffer from heat stress from a temperature-humidity index of 70 to 72 or higher.
The temperature and humidity index 72 is subject to slight thermal stress at 22 ° C, which corresponds to the appropriate rearing temperature.
According to one embodiment of the present invention, when the THI value exceeds 98, it can be determined that the livestock can be killed, based on the data and experimental data reported in the past. When the THI value is 70 or more, .
In addition, if the THI is 70 to 72, it is judged as the first influential stress level. If the THI is 70 to 72, it is judged as the intermediate stress level. If the THI is 70 to 72, it is judged as the first influential stress level. do.
In one embodiment of the present invention, when the calculated THI value for each point is inputted, the
That is, the drive control value is calculated by comparing the control value calculated by applying the threshold control value to the difference between the temperature / humidity index calculated from the measured temperature and the appropriate temperature / humidity index, with the current drive control state.
This threshold value may also be set by the user arbitrarily adjusting through the
Next, the
For example, the
For example, when the temperature measured at each point does not reach the threshold value set for each range of the temperature and humidity index, the ventilation amount of the blower device is reduced and the heating device is operated. If the temperature exceeds the preset threshold value, the ventilation amount of the blower device A control amount that can be controlled so as to increase the cooling capacity of the air conditioner.
Also, the driving control value may be a function of driving the dehumidifier when the difference value THI to the appropriate THI value is high due to a high value for the humidity, and reducing the heat stress by activating the mist spraying device when the humidity value is low The control amount may be included.
In addition, the control unit may have an appropriate temperature and humidity index that can be applied to each stage of cow breeding.
Next, the
The
For example, if the temperature at the first point of the eastern section of the barrel is higher than the threshold value set in the calculated temperature and humidity index range and the air is dry, the ventilation amount of the ventilator adjacent to the first point is increased, And is controlled to increase the spray amount. At the same time, when the temperature of the third point in the north zone is lower than the set threshold and is humid, the ventilation amount of the ventilation device adjacent to the third point is reduced, the heating device adjacent to the third point is activated, It can be controlled to stop the supply and to operate the dehumidifier adjacent to the third point.
According to another embodiment of the present invention, after the
Alternatively, according to an embodiment of the present invention, when the temperature, humidity, and THI value exceed the set threshold value, the function may be informed to the administrator through the data transmission unit.
4 shows an example of the structure of a blower device according to another embodiment of the present invention.
Referring to FIG. 4, the
The
The
According to one embodiment of the present invention, since the temperature and humidity can be measured for each point and area, and the blowing fan and the mist spraying device can be controlled, it is possible to provide a pleasant environment condition, and compared with a method of keeping the overall temperature and humidity constant Unnecessary energy consumption can be reduced.
According to an embodiment of the present invention, since the air blowing device can be operated at a low rotation speed not only in the summer but also in the winter, it is possible to provide a comfortable environment to the cow by removing harmful gas inside the barrel.
According to an embodiment of the present invention, the temperature and the values measured from the humidity sensor provided for each point of the area partitioned by a certain area are converted into the temperature and humidity index that can be controlled by the temperature and humidity index calculating unit of the convenience environment control apparatus.
The
For example, the higher the temperature and humidity index difference, the greater the speed of the blower fan, and the lower the temperature of the blower fan when the temperature and humidity index difference is lower, providing only a low velocity air stream, such as the release of noxious gases in each zone. Therefore, it is possible to minimize the stress of the cow and increase the productivity by using the spinning fan rotation speed and the mist spraying amount depending on the season by using the Usa environment division control device. Also, by automatically controlling the direction of the blowing fan inside the barrel according to the data of the wind direction measuring instrument installed on the bar roof, the air flow inside the barrel can be smooth and the wind speed can be increased.
According to an embodiment of the present invention, the values measured from the temperature and the humidity operate the blower in accordance with the temperature and humidity index conversion program and the rotating speed operating condition incorporated in the controller of the Usa environment division controller. The temperature and humidity index conversion that is inserted in the control device of the blower rotation speed uses a formula widely used in the cow. The number of revolutions of the blower and the amount of spray mist spray are adjusted according to the following criterion which indicates the temperature and humidity index and the stress state of the cow.
According to an embodiment of the present invention, by taking environmental stress management of the barnyard in consideration of the heat stress temperature and humidity index, it is possible to provide a comfortable environment in which the beef or dairy cow is not stressed.
1: Internal split-type environmental management device of Usa
10: Control device
21, 121: blower device
23, 122: mist spray device
24: Temperature and humidity sensor
100:
101: sensing input unit
102: Data input unit
103: Temperature and Humidity Index Calculation Unit
111: Fan drive device
112: Sprayer drive
Claims (8)
a) receiving a temperature and humidity condition at each point from a temperature and humidity sensor installed at each point of the divided area divided by the predetermined area of the inner surface of the control unit from the sensing input unit;
b) calculating a temperature and humidity index of the divided environmental management apparatus from the input temperature and humidity conditions;
the control unit compares the measured temperature and humidity index with the appropriate temperature and humidity index set for each point from the temperature and humidity index, and selects the facility equipment for each branch for changing the difference from the difference to the appropriate temperature and humidity index for each input point, Determining a control value; And
g) transmitting the drive control value to the facility equipment at a point selected according to the drive control value of the facility equipment; Wherein the method comprises the steps of: (a) calculating a temperature and humidity index of the internal combustion engine;
In step b)
A method for calculating the temperature and humidity index of a cow raised in the above-mentioned cow by using the following formula:
[Calculation formula] Temperature and humidity index (THI) = (0.8 × temperature) + [relative humidity × (temperature -14.4)] + 46.4
Wherein the facility equipment in the step c) is a blower and a mist spraying device, and the control unit selects the blower and the mist spraying device capable of controlling the temperature and humidity of the corresponding point location at each point and transmits the drive control value. An Inner Split Environment Management Method Using.
Wherein the drive control value includes a control signal for controlling a rotating speed and a rotating direction of the blower.
And a control signal for controlling a spray amount of the mist spraying device is included in the driving control value.
A data input unit for inputting management conditions and a user command;
A temperature / humidity index calculating unit for calculating a temperature / humidity index from a signal input from the sensing input unit;
The temperature and humidity index calculated by the temperature and humidity index calculating unit is input and compared with an appropriate temperature and humidity index set for each point and the temperature and humidity index are changed from the difference to the appropriate temperature and humidity index, And determines a drive control value of the selected blowing device and the mist spraying device;
A blower drive unit for receiving the drive control value from the control unit and sending a control signal for the blowing rotational speed and the blowing direction to the blower at the corresponding position to control the blower; And
A sprayer driving device for receiving the drive control value from the controller and sending a control signal for the spray amount to the mist sprayer at the corresponding position to control the mist sprayer; And an internal division type environmental management apparatus using the temperature and humidity index
Wherein the sensing input unit further receives a wind direction signal from the wind direction meter,
Wherein the control unit calculates a blowing direction based on a control amount and a wind direction of a point to be controlled by receiving the wind direction signal and transmits a control signal for an appropriate blowing direction to the blower driving unit, Management device
Wherein the controller is provided with an appropriate temperature and humidity index that can be applied to each stage of cow breeding,
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020150159033A KR101883868B1 (en) | 2015-11-12 | 2015-11-12 | Interior zone divisional environment management system of cow house using temperature humidity index and apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020150159033A KR101883868B1 (en) | 2015-11-12 | 2015-11-12 | Interior zone divisional environment management system of cow house using temperature humidity index and apparatus |
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| Publication Number | Publication Date |
|---|---|
| KR20170055801A true KR20170055801A (en) | 2017-05-22 |
| KR101883868B1 KR101883868B1 (en) | 2018-08-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| KR1020150159033A KR101883868B1 (en) | 2015-11-12 | 2015-11-12 | Interior zone divisional environment management system of cow house using temperature humidity index and apparatus |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107295973A (en) * | 2017-06-22 | 2017-10-27 | 德阳原野农牧有限责任公司 | Milk cow shed for rest with heat sinking function |
| IT201700106018A1 (en) * | 2017-09-21 | 2019-03-21 | Licciardi Samantha Labesse | "AIR-CONDITIONING SYSTEM FOR STALLE AND ANIMALS" |
| KR20190054499A (en) * | 2017-11-13 | 2019-05-22 | 대한민국(농촌진흥청장) | Control device and control method of dairy cattle housing environment based on outside climate |
| CN109931680A (en) * | 2017-12-15 | 2019-06-25 | 奥克斯空调股份有限公司 | The sendible temperature calculation method and device of user in a kind of air-conditioned room |
| KR102070315B1 (en) * | 2019-05-08 | 2020-03-02 | 농업회사법인 주식회사 정원에프앤디 | System for reducing stink for livestock house using ICT and bio-curtain |
| CN111076383A (en) * | 2019-12-30 | 2020-04-28 | 蚌埠学院 | Method and system for intelligently adjusting temperature of air conditioning system |
| KR20200118680A (en) * | 2019-04-08 | 2020-10-16 | 주식회사 엔쓰컴퍼니 | System for Controlling Air Density |
| CN112413854A (en) * | 2020-12-18 | 2021-02-26 | 珠海格力电器股份有限公司 | Temperature control method and device and air conditioning equipment |
| KR20210074920A (en) * | 2019-12-12 | 2021-06-22 | 대한민국(농촌진흥청장) | Chilled and hot drinking water supply device for livestock animal |
| KR20210081687A (en) | 2019-12-24 | 2021-07-02 | 경상국립대학교산학협력단 | Thi notification system for layer chicken |
| CN116897838A (en) * | 2023-07-19 | 2023-10-20 | 江苏省农业科学院 | Intelligent environmental control system in semi-open type cowshed |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100536231B1 (en) | 2003-02-26 | 2005-12-14 | 대한민국(관리부서:농촌진흥청) | Artificial controller for the livestock environment |
| JP6145754B2 (en) * | 2012-07-02 | 2017-06-14 | 宮崎県 | Environmental mitigation equipment for livestock |
-
2015
- 2015-11-12 KR KR1020150159033A patent/KR101883868B1/en active IP Right Grant
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107295973A (en) * | 2017-06-22 | 2017-10-27 | 德阳原野农牧有限责任公司 | Milk cow shed for rest with heat sinking function |
| IT201700106018A1 (en) * | 2017-09-21 | 2019-03-21 | Licciardi Samantha Labesse | "AIR-CONDITIONING SYSTEM FOR STALLE AND ANIMALS" |
| KR20190054499A (en) * | 2017-11-13 | 2019-05-22 | 대한민국(농촌진흥청장) | Control device and control method of dairy cattle housing environment based on outside climate |
| CN109931680A (en) * | 2017-12-15 | 2019-06-25 | 奥克斯空调股份有限公司 | The sendible temperature calculation method and device of user in a kind of air-conditioned room |
| KR20200118680A (en) * | 2019-04-08 | 2020-10-16 | 주식회사 엔쓰컴퍼니 | System for Controlling Air Density |
| KR102070315B1 (en) * | 2019-05-08 | 2020-03-02 | 농업회사법인 주식회사 정원에프앤디 | System for reducing stink for livestock house using ICT and bio-curtain |
| KR20210074920A (en) * | 2019-12-12 | 2021-06-22 | 대한민국(농촌진흥청장) | Chilled and hot drinking water supply device for livestock animal |
| KR20210081687A (en) | 2019-12-24 | 2021-07-02 | 경상국립대학교산학협력단 | Thi notification system for layer chicken |
| CN111076383A (en) * | 2019-12-30 | 2020-04-28 | 蚌埠学院 | Method and system for intelligently adjusting temperature of air conditioning system |
| CN112413854A (en) * | 2020-12-18 | 2021-02-26 | 珠海格力电器股份有限公司 | Temperature control method and device and air conditioning equipment |
| CN116897838A (en) * | 2023-07-19 | 2023-10-20 | 江苏省农业科学院 | Intelligent environmental control system in semi-open type cowshed |
Also Published As
| Publication number | Publication date |
|---|---|
| KR101883868B1 (en) | 2018-08-30 |
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