CN111441690A - Indoor ventilation system based on entropy calculation - Google Patents

Indoor ventilation system based on entropy calculation Download PDF

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Publication number
CN111441690A
CN111441690A CN202010144839.8A CN202010144839A CN111441690A CN 111441690 A CN111441690 A CN 111441690A CN 202010144839 A CN202010144839 A CN 202010144839A CN 111441690 A CN111441690 A CN 111441690A
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China
Prior art keywords
processing device
entropy
air detection
detection device
air
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Withdrawn
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CN202010144839.8A
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Chinese (zh)
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金文亚
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Priority to CN202010144839.8A priority Critical patent/CN111441690A/en
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    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F15/00—Power-operated mechanisms for wings
    • E05F15/70—Power-operated mechanisms for wings with automatic actuation
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F15/00—Power-operated mechanisms for wings
    • E05F15/70—Power-operated mechanisms for wings with automatic actuation
    • E05F15/77—Power-operated mechanisms for wings with automatic actuation using wireless control
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F15/00—Power-operated mechanisms for wings
    • E05F15/70—Power-operated mechanisms for wings with automatic actuation
    • E05F15/79—Power-operated mechanisms for wings with automatic actuation using time control
    • 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
    • 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
    • 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
    • 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
    • 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
    • F24F11/88—Electrical aspects, e.g. circuits
    • 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
    • F24F11/89—Arrangement or mounting of control or safety devices
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05Y2900/00—Application of doors, windows, wings or fittings thereof
    • E05Y2900/10—Application of doors, windows, wings or fittings thereof for buildings or parts thereof
    • E05Y2900/13—Application of doors, windows, wings or fittings thereof for buildings or parts thereof characterised by the type of wing
    • E05Y2900/148—Windows
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2130/00—Control inputs relating to environmental factors not covered by group F24F2110/00
    • F24F2130/10—Weather information or forecasts

Abstract

The invention relates to an indoor ventilation system based on entropy calculation, which is used for changing the ventilation direction in a house according to the entropy change condition and comprises the following components: the system comprises a plurality of air detection device groups, a processing device, a database and a plurality of switch devices, wherein the processing device is respectively connected with the air detection devices, the switch devices and the database, the air detection device groups are respectively arranged in each room, the switch devices are respectively arranged on windows of each room, the air detection device groups of adjacent rooms are interconnected, the air detection device groups respectively test the conditions of entropy in the corresponding rooms, standard entropy values in each room under different environmental conditions are respectively recorded in the database, the processing device compares the standard entropy values in the database with real-time entropy values detected by the corresponding air detection device groups in each current room under the current environmental conditions, and the processing device controls the switch devices corresponding to the windows of different rooms to control the windows corresponding to the switch devices according to the comparison conditions.

Description

Indoor ventilation system based on entropy calculation
Technical Field
The invention relates to the field of life, in particular to an indoor ventilation system based on entropy calculation.
Background
Ventilation, also known as air exchange, is the process of feeding sufficient fresh air into the room space mechanically or naturally, and simultaneously discharging the dirty air which is not in compliance with the sanitary requirements, so that the indoor air meets the sanitary requirements and the requirements of the production process. The traditional equipment can not intelligently ventilate indoor air, so that the indoor air flow is reduced, and the living comfort is poor.
At present, a ventilation system can only control ventilation according to the overall condition of an indoor environment, when the indoor environment changes slightly and the outdoor environment changes suddenly, the ventilation system cannot change the ventilation state in a targeted manner, so that air with heavy external pollution enters the indoor environment in the ventilation process, and the effect of inversion at this end is achieved.
Disclosure of Invention
The purpose of the invention is as follows:
aiming at the problems that at present, a ventilation system can only control ventilation according to the whole condition of an indoor environment, when the indoor environment changes slightly and the outdoor environment changes suddenly, the ventilation system cannot change the ventilation state in a targeted manner, so that air with heavy external pollution enters the indoor environment in the ventilation process, and the inversion effect is achieved at this end, the invention provides the indoor ventilation system based on entropy calculation.
The technical scheme is as follows:
an indoor ventilation system based on entropy calculation is used for changing the ventilation direction in a house according to the entropy change condition, and comprises: a plurality of air detection device groups, a processing device, a database and a plurality of switch devices, wherein the processing device is respectively connected with the air detection device, the switch device and the database, the air detection device groups are respectively arranged in each room, the switch devices are respectively arranged on the windows of each room, the air detection device groups of adjacent rooms are mutually connected, the air detection device set respectively tests the entropy condition in the corresponding room, the database respectively records the standard entropy value in each room under different environmental conditions, the processing device compares the standard entropy values in the database with the real-time entropy values detected by the corresponding air detection device groups in each room at present under the current environmental condition, and the processing device controls the opening and closing devices corresponding to the windows of different rooms according to the comparison condition to control the windows corresponding to the opening and closing devices.
As a preferable mode of the present invention, the processing device is connected to the internet, the processing device obtains the current outside air condition through the internet, and when the outside air condition is good, the processing device allows each of the opening and closing devices to open the window correspondingly controlled.
In a preferred aspect of the present invention, the air detection device group includes a first air detection device and a second air detection device, and the first air detection device and the second air detection device are disposed at positions respectively located at the midpoints of two bisectors of the corresponding room.
In a preferred aspect of the present invention, the processing device determines the gradient of the degree of air turbulence in the same room based on the magnitude of the real-time entropy calculated by the first air detection device and the magnitude of the real-time entropy calculated by the second air detection device in the same room, and the processing device determines the gradient of the degree of air turbulence in the adjacent room based on the magnitude of the real-time entropy calculated by the adjacent air detection devices in the different rooms.
As a preferable aspect of the present invention, the processing device performs a first window opening/closing determination based on a gradient of a degree of disturbance of air in the same room, the processing device performs a second window opening/closing determination based on a gradient of a degree of disturbance of air in an adjacent room, and the processing device confirms a final window opening/closing determination based on the first window opening/closing determination and the second window opening/closing determination.
In a preferred embodiment of the present invention, the window cleaner further comprises a ventilator connected to the processing device, the ventilator actively discharges indoor air to the outside, and the ventilator is activated when the processing device determines that the external air condition does not allow the window to be opened.
In a preferred embodiment of the present invention, the ventilation system further comprises a time device connected to the processing device, and the processing device determines whether ventilation is necessary or not based on the time of the time device.
In a preferred embodiment of the present invention, the processing device sets an entropy threshold value, and controls the system to perform forced ventilation when the processing device determines that the time of the time device is the non-ventilation time and the real-time entropy calculated by the air detection device group is greater than the entropy threshold value.
As a preferred mode of the present invention, the air detection device includes a power supply module, a heating module, a first conversion module, an amplification module, and a second conversion module, the power supply module, the heating module, the first conversion module, the amplification module, and the second conversion module are sequentially connected, the first conversion module is used for thermoelectric conversion, and the second conversion module is used for conversion of an electrical signal and a digital signal.
The invention realizes the following beneficial effects:
the method is characterized in that the gradient of the chaos degree of the air in the room is judged according to the gradient of the entropy through calculating the entropy in the room, and the condition of air circulation is judged according to the real-time gradient of the chaos degree of the air, so that the control of a window of the room and a room ventilation device is facilitated.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure.
FIG. 1 is a system framework diagram of the present invention;
FIG. 2 is a frame diagram of the air detection unit;
fig. 3 is a room arrangement diagram.
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.
The first embodiment is as follows:
the reference figures are figures 1-3. An indoor ventilation system based on entropy calculation is used for changing the ventilation direction in a house according to the entropy change condition, and comprises: a plurality of air detection device groups 1, a processing device 2, a database 3 and a plurality of switch devices 4, the processing device 2 is respectively connected with the air detection device, the switch device 4 and the database 3, the air detection device sets 1 are respectively arranged in each room, the switch devices 4 are respectively arranged on the windows of each room, the air detection device sets 1 of adjacent rooms are mutually connected, the air detection device group 1 respectively tests the entropy condition in the corresponding room, the database 3 respectively records the standard entropy value in each room under different environmental conditions, the processing means 2 compares the standard entropy values in the database 3 with the real-time entropy values detected by the corresponding air detection means set 1 currently in each room under the current environmental conditions, the processing device 2 controls the opening and closing devices 4 corresponding to the windows of different rooms according to the comparison conditions to control the windows corresponding to the opening and closing devices 4.
As a preferred mode of the present invention, the processing device 2 is connected to the internet, the processing device 2 obtains the current outside air condition through the internet, and when the outside air condition is good, the processing device 2 allows each of the switch devices 4 to open the window of the corresponding control.
In a preferred embodiment of the present invention, the air detection device group 1 includes a first air detection device 5 and a second air detection device 6, and the first air detection device 5 and the second air detection device 6 are disposed at positions respectively located at the midpoints of two trisections of the corresponding room.
In a preferred embodiment of the present invention, the processing device 2 determines the gradient of the degree of air turbulence in the same room based on the magnitudes of the real-time entropies calculated by the first air detection device 5 and the real-time entropies calculated by the second air detection device 6 in the same room, and the processing device 2 determines the gradient of the degree of air turbulence in adjacent rooms based on the magnitudes of the real-time entropies calculated by adjacent air detection devices in different rooms.
In a preferred aspect of the present invention, the processing device 2 performs a first window opening/closing determination based on a gradient of a degree of disturbance of air in the same room, the processing device 2 performs a second window opening/closing determination based on a gradient of a degree of disturbance of air in an adjacent room, and the processing device 2 confirms a final window opening/closing determination based on the first window opening/closing determination and the second window opening/closing determination.
In a preferred embodiment of the present invention, the present invention further comprises a ventilator 8, the ventilator 8 is connected to the processing device 2, the ventilator 8 is configured to actively discharge indoor air to the outside, and the ventilator 8 is activated when the processing device 2 determines that the external air condition does not allow the window to be opened.
In a preferred embodiment of the present invention, the ventilation system further comprises a time device 7, the time device 7 is connected to the processing device 2, and the processing device 2 determines whether ventilation is required or not based on the time of the time device 7.
In a preferred embodiment of the present invention, the processing device 2 sets an entropy threshold value, and the processing device 2 controls the system to perform forced ventilation when the processing device 2 determines that the time of the time device 7 is the non-ventilation time and the real-time entropy value calculated by the air detection device group 1 is greater than the entropy threshold value.
In a preferred embodiment of the present invention, the air detection device includes a power supply module 9, a heating module 10, a first conversion module 11, an amplification module 12, and a second conversion module 13, the power supply module 9, the heating module 10, the first conversion module 11, the amplification module 12, and the second conversion module 13 are sequentially connected, the first conversion module 11 is used for thermoelectric conversion, and the second conversion module 13 is used for conversion between an electrical signal and a digital signal.
In the implementation process, when the time of the time device 7 reaches the time needing ventilation and the outside air condition reaches the allowable range of the processing device 2, the processing device 2 controls the ventilation system to start ventilation. The processing device 2 controls all the switch devices 4 to open the windows corresponding to the switch devices 4, so that the indoor ventilation is started.
Regarding the air detection device, the air obtained by the air detection device is regarded as a system, the power supply module 9 supplies power to the heating module 10, the air detection device provides indoor air to the heating module 10, the heating module 10 is a small heating furnace and a heat insulation layer around the small heating furnace, the heating module 10 heats the air, the air generates a certain reaction and causes the change of the obtained system heat of the air system, the first conversion module 11 is a thermoelectric sensor, the thermoelectric sensor receives the system heat of the air system, a thermocouple of the thermoelectric sensor converts the changed temperature into an electric signal, the amplification module 12 amplifies the electric signal, the second conversion module 13 is an a/D converter, the second conversion module 13 converts the electric signal into a digital signal, the air detection device processes and judges the digital signal, the judgment result is entropy.
Assuming that there are a room a and a room B, the room a and the room B are connected, the first air detection device 5A in the room a is disposed at a position close to the window a, the second air detection device 6A is disposed at a position close to the door, the first air detection device 5B in the room B is disposed at a position close to the window B, and the second air detection device 6B is disposed at a position close to the door, and when the processing device 2 controls the opening and closing device 4A and the opening and closing device 4B to open the window a and the window B for ventilation, the first air detection device 5A, the second air detection device 6A, the first air detection device 5B, and the second air detection device 6B perform detection of the air entropy in real time.
Since the general wind direction of the home ventilation is fixed, it is assumed that the wind direction is "first air detection device 5A-second air detection device 6B-first air detection device 5A", and therefore, in a normal case, the order of the entropy measurement results of first air detection device 5A-second air detection device 6B-first air detection device 5A from small to large is first air detection device 5A, second air detection device 6B, first air detection device 5A; when the processing device 2 determines the gradient, the gradient determination is performed according to the entropy values of the first air detection device 5 and the second air detection device 6 in the same room, and then the gradient determination is performed according to the entropy values between the second air detection devices 6 in different rooms, for example, when the processing device 2 determines that the entropy value of the first air detection device 5A is smaller than that of the second air detection device 6A, it is determined that the ventilation condition in the room a is good at this time, and the same is true for the room B; on the basis, when the processing device 2 judges that the entropy value of the second air detection device 6A is smaller than the entropy value of the second air detection device 6B, the processing device 2 judges that the ventilation effect is good when the ventilation direction is from the room a to the room B, and the processing device 2 drives the switch device 4B of the room B to close the window B; at the same time, the processing device 2 can appropriately control the ventilator 8B in the room B to operate at a slow speed, for example, with smoke exhausted from downstairs residents outside the window of the room B.
The air interchanger 8 is connected with the processing device 2, the air interchanger 8 is used for actively discharging indoor air to the outdoor, when the processing device 2 judges that the external air condition does not allow opening the window, the air interchanger 8 is started, the time device 7 is connected with the processing device 2, the processing device 2 judges whether ventilation is needed or not according to the time of the time device 7, the processing device 2 sets an entropy critical value, and when the processing device 2 judges that the time of the time device 7 is in non-ventilation time and the real-time entropy value calculated by the air detection device group 1 is larger than the entropy critical value, the processing device 2 controls the system to forcibly ventilate.
The above embodiments are merely illustrative of the technical ideas and features of the present invention, and are intended to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the scope of the present invention. All equivalent changes or modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.

Claims (9)

1. An indoor ventilation system based on entropy calculation, which is used for changing the ventilation direction in the house according to the entropy change condition, and is characterized by comprising: a plurality of air detection device groups, a processing device, a database and a plurality of switch devices, wherein the processing device is respectively connected with the air detection device groups, the switch devices and the database, the air detection device groups are respectively arranged in each room, the switch devices are respectively arranged on the windows of each room, the air detection device groups of adjacent rooms are mutually connected, the air detection device set respectively tests the entropy condition in the corresponding room, the database respectively records the standard entropy value in each room under different environmental conditions, the processing device compares the standard entropy values in the database with the real-time entropy values detected by the corresponding air detection device groups in each room at present under the current environmental condition, and the processing device controls the opening and closing devices corresponding to the windows of different rooms according to the comparison condition to control the windows corresponding to the opening and closing devices.
2. An indoor ventilation system based on entropy calculation as claimed in claim 1, wherein: the processing device is communicated with the Internet, the processing device acquires the current external air condition through the Internet, and when the external air condition is good, the processing device allows each switch device to open the window correspondingly controlled.
3. An indoor ventilation system based on entropy calculation as claimed in claim 1, wherein: the air detection device group comprises a first air detection device and a second air detection device, and the first air detection device and the second air detection device are respectively arranged at the middle points of two trisection lines of a corresponding room.
4. An indoor ventilation system based on entropy calculation according to claim 3, wherein: the processing device judges the gradient of the air disorder degree in the same room according to the magnitude of the real-time entropy calculated by the first air detection device and the magnitude of the real-time entropy calculated by the second air detection device in the same room, and the processing device judges the gradient of the air disorder degree in the adjacent room according to the magnitude of the real-time entropy calculated by the adjacent air detection devices in different rooms.
5. An indoor ventilation system based on entropy calculation according to claim 4, wherein: the processing device performs a first window opening/closing determination based on a gradient of a degree of air disturbance in the same room, performs a second window opening/closing determination based on a gradient of a degree of air disturbance in an adjacent room, and confirms a final window opening/closing determination based on the first window opening/closing determination and the second window opening/closing determination.
6. An indoor ventilation system based on entropy calculation according to claim 2, wherein: the window ventilation device is characterized by further comprising a ventilation device, the ventilation device is connected with the processing device, the ventilation device is used for actively discharging indoor air to the outside, and when the processing device judges that the external air condition does not allow the window to be opened, the ventilation device is started.
7. An indoor ventilation system based on entropy calculation as claimed in claim 1, wherein: the device also comprises a time device which is connected with the processing device, and the processing device judges whether ventilation is needed according to the time of the time device.
8. An indoor ventilation system based on entropy calculation according to claim 7, wherein: the processing device sets an entropy critical value, and when the processing device judges that the time of the time device is in non-ventilation time and the real-time entropy value calculated by the air detection device group is larger than the entropy critical value, the processing device controls the system to conduct forced ventilation.
9. An indoor ventilation system based on entropy calculation as claimed in claim 1, wherein: the air detection device comprises a power supply module, a heating module, a first conversion module, an amplification module and a second conversion module, wherein the power supply module, the heating module, the first conversion module, the amplification module and the second conversion module are sequentially connected, the first conversion module is used for thermoelectric conversion, and the second conversion module is used for converting an electric signal and a digital signal.
CN202010144839.8A 2020-03-05 2020-03-05 Indoor ventilation system based on entropy calculation Withdrawn CN111441690A (en)

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1821673A (en) * 2005-02-15 2006-08-23 Lg电子株式会社 Ventilating system and method for controlling the same
EP2716987A2 (en) * 2012-10-05 2014-04-09 IFN-Holding AG Control for an indoor fan, ventilating system, and window with room ventilator
CN204002269U (en) * 2014-08-01 2014-12-10 常州信息职业技术学院 A kind of room air control system
US20170350611A1 (en) * 2014-12-24 2017-12-07 Koninklijke Philips N.V. Arrangement and method for air management of a room
JP2019148408A (en) * 2017-11-17 2019-09-05 パナソニックＩｐマネジメント株式会社 Ventilation device
CN110409954A (en) * 2019-08-07 2019-11-05 永州职业技术学院 A kind of computer based intelligent door and window control system
CN110809131A (en) * 2019-10-22 2020-02-18 苏州凸现信息科技有限公司 Security monitoring system based on gas entropy change measurement

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1821673A (en) * 2005-02-15 2006-08-23 Lg电子株式会社 Ventilating system and method for controlling the same
EP2716987A2 (en) * 2012-10-05 2014-04-09 IFN-Holding AG Control for an indoor fan, ventilating system, and window with room ventilator
CN204002269U (en) * 2014-08-01 2014-12-10 常州信息职业技术学院 A kind of room air control system
US20170350611A1 (en) * 2014-12-24 2017-12-07 Koninklijke Philips N.V. Arrangement and method for air management of a room
JP2019148408A (en) * 2017-11-17 2019-09-05 パナソニックＩｐマネジメント株式会社 Ventilation device
CN110409954A (en) * 2019-08-07 2019-11-05 永州职业技术学院 A kind of computer based intelligent door and window control system
CN110809131A (en) * 2019-10-22 2020-02-18 苏州凸现信息科技有限公司 Security monitoring system based on gas entropy change measurement

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