CN107084502B - House fresh air positive pressure safeguards system based on Internet of Things - Google Patents
House fresh air positive pressure safeguards system based on Internet of Things Download PDFInfo
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- CN107084502B CN107084502B CN201710366021.9A CN201710366021A CN107084502B CN 107084502 B CN107084502 B CN 107084502B CN 201710366021 A CN201710366021 A CN 201710366021A CN 107084502 B CN107084502 B CN 107084502B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/0001—Control or safety arrangements for ventilation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/0001—Control or safety arrangements for ventilation
- F24F2011/0002—Control or safety arrangements for ventilation for admittance of outside air
- F24F2011/0004—Control or safety arrangements for ventilation for admittance of outside air to create overpressure in a room
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- 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]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Ventilation (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The present invention provides a kind of house fresh air positive pressure safeguards system based on Internet of Things, including new blower control unit, air compensation device control unit, smoke exhaust ventilator state detection unit, exhaust blower state detection unit, smoke exhaust ventilator state detection unit is used to detect the gear state signal of smoke exhaust ventilator, and the gear state signal of smoke exhaust ventilator is sent to new blower control unit, air compensation device control unit, exhaust blower state detection unit is used to detect the gear state signal of exhaust blower, and the gear state signal of exhaust blower is sent to new blower control unit, air compensation device control unit, air compensation device control unit is used for according to the gear state signal of smoke exhaust ventilator and/or the gear state signal of exhaust blower, the adaptable benefit air quantity of output；New blower control unit receives the gear state signal of smoke exhaust ventilator and/or the gear state signal of exhaust blower, and control pressure fan exports certain air quantity, maintains indoor positive pressure state, guarantees indoor air quality.
Description
Technical field
The present invention relates to a kind of house fresh air positive pressure safeguards systems, are applied to kitchen based on Internet of Things more particularly to a kind of
The house fresh air positive pressure safeguards system in room, toilet and the linkage of other rooms.
Background technique
Influence of the indoor pollutants such as PM2.5, formaldehyde, TVOC to health is increasingly valued by people, especially
It is that haze weather directly affects PM2.5 concentration.Currently, most of New Dwelling is assembled with indoor positive pressure fresh air system,
Basic principle is that outdoor air is introduced Fresh air handing device, is reached by primarily efficient filter, sub- high efficiency filter and Electrostatic Absorption filtering
It is sent into interior to very high PM2.5 removal rate, then by purified fresh air, and keeps indoor certain barotropic state, a side
Face prevents outdoor pollutant from entering the room, and certain infiltration rate of ventilation is on the other hand kept to arrange indoor pollutant using gap
Outdoor is arrived out.The effect of this indoor positive pressure fresh air system depends on two aspects: (1) to the treatment effeciency of outdoor fresh air；(2)
Room has preferable leakproofness, keeps certain indoor positive pressure.It is said from energy conservation and the angle for reducing noise, Fresh air handing device
Pressure fan generally can all be automatically adjusted according to PM2.5 or TVOC concentration, when indoor air quality is preferable, use
Lower air output.
For normal cells house other than door and window infiltration, there are also the short of the exhaust fan of the smoke exhaust ventilator in kitchen and toilet
Shi Tongfeng.For example, when cooking, it usually needs continue 30-60 minutes, opening smoke exhaust ventilator can the indoor positive pressure shape of rapid damage
State, entire room are changed into negative pressure state, and the air penetration of door and window deteriorates indoor air quality.The existing new air control of house
System processed is self-contained unit, does not account for the influence of the other machineries ventilation device such as smoke exhaust ventilator in apartment, exhaust fan
Problem leads to not keep indoor positive pressure state, and outdoor pollutant enters, and then not can guarantee indoor air quality.
Summary of the invention
In view of the foregoing, the purpose of the present invention is to provide a kind of house fresh air positive pressure guarantee system based on Internet of Things
System, using the running state information of the mechanical ventilators such as Internet of Things cloud platform acquisition smoke exhaust ventilator, exhaust blower, automatic adjustment
The air output of pressure fan, while controlling Bu Feng executing agency appropriateness benefit wind and guaranteeing indoor air to maintain indoor positive pressure state
Quality.
In order to achieve the above objectives, the invention adopts the following technical scheme:
A kind of house fresh air positive pressure safeguards system based on Internet of Things, including the control of new blower control unit, air compensation device
Unit, smoke exhaust ventilator state detection unit, exhaust blower state detection unit,
Smoke exhaust ventilator state detection unit is used to detect the gear state signal of smoke exhaust ventilator, and by the gear of smoke exhaust ventilator
Status signal is sent to new blower control unit, air compensation device control unit,
Exhaust blower state detection unit is used to detect the gear state signal of exhaust blower, and the gear state of exhaust blower is believed
Number it is sent to new blower control unit, air compensation device control unit,
Air compensation device control unit is used to be believed according to the gear state signal of smoke exhaust ventilator and/or the gear state of exhaust blower
Number, export adaptable benefit air quantity；New blower control unit receives the gear state signal of smoke exhaust ventilator and/or the shelves of exhaust blower
Position status signal, control pressure fan export certain air quantity, guarantee indoor maintenance barotropic state.
Further,
House fresh air positive pressure safeguards system based on Internet of Things, further includes indoor and outdoor pressure differential detection unit, is used for sensing chamber
Inside and outside pressure difference signal, and indoor and outdoor pressure difference signal is sent to the new blower control unit, when the room, inside and outside differential pressure signal
Less than setting minimum differntial pressure threshold value when, starting alarm.
The smoke exhaust ventilator state detection unit includes the first main control chip, first switch amount input channel, first wireless
Transceiver module, the first address configuration circuit, the first timer circuit, the first address configuration circuit are used for the address to smoke exhaust ventilator
And operating status carries out coding configuration, the driving switch signal of smoke exhaust ventilator is sent to the first master through first switch amount input channel
Control chip, the first main control chip by the timing signal of corresponding gear state signal, corresponding encoded signal, the first timer with
The running state information of smoke exhaust ventilator is sent to the new blower control unit and air compensation device control through the first radio receiving transmitting module
Unit processed.
The exhaust blower state detection unit includes the second main control chip, second switch amount input channel, the second wireless receipts
Module, the second address configuration circuit, the second timer circuit are sent out, the second address configuration circuit is used for address and fortune to exhaust blower
Row state carries out coding configuration, and the driving switch signal of exhaust blower is sent to the second master control core through second switch amount input channel
Piece, the second main control chip by corresponding gear state signal, corresponding encoded signal, the second timer timing signal with air draft
The running state information of machine is sent to the new blower control unit and air compensation device control unit through the second radio receiving transmitting module.
The air compensation device control unit includes third main control chip, mends blower structure drive module third wireless receiving and dispatching mould
Block, the running state information of the smoke exhaust ventilator and/or the running state information of exhaust blower are transmitted through third radio receiving transmitting module
To third main control chip, third main control chip is executed according to smoke exhaust ventilator and/or the gear state signal of exhaust blower by mending wind
The benefit air quantity that drive module drives the output of Bu Feng executing agency adaptable.
The air compensation device control unit further includes mending wind file position feedback module, for according to the Bu Feng executing agency
Operating status determines the operational taps information of the Bu Feng executing agency, and the operational taps information is wirelessly received through the third
Hair module is sent to the new blower control unit.
The Bu Feng executing agency includes that valve-type mends blower and mechanical benefit blower, mends blower for valve-type, mends wind
Mechanism drive module includes D/A conversion circuit, power amplification circuit, and the control signal output of the third main control chip is through D/
A conversion circuit, power amplification circuit are connected with the control terminal that valve-type mends blower；For mechanically mending blower, blower structure is mended
Drive module includes pwm circuit, power amplification circuit, and the control signal output of the third main control chip is through pwm circuit, function
Rate amplifying circuit is connected with the mechanical control terminal for mending blower.
The third main control chip further includes third memory module, for storing the gear adjustment table of comparisons, third master control core
The piece gear state signal of smoke exhaust ventilator and/or exhaust blower based on the received is searched the gear adjustment table of comparisons, is tied according to searching
Fruit exports corresponding control signal to corresponding Bu Feng executing agency, provides adaptable benefit air quantity.
The new blower control unit include the 4th main control chip, pressure fan drive module, Electrostatic Absorption control module,
PM2.5 detection module, human-computer interaction module, the 4th radio receiving transmitting module, PM2.5 detection module are indoor for real-time monitoring
PM2.5 concentration, Electrostatic Absorption control module realize start-up and shut-down control and power supply for controlling high-pressure electrostatic adsorption filter
Voltage monitoring and adjusting, pressure fan drive module are used to control the revolving speed of pressure fan, and human-computer interaction module includes touch screen, alarm
Unit, touch screen are connected with the end I/O of the 4th main control chip, whole system can be controlled by touch screen operation, display is through the
The received smoke exhaust ventilator state detection unit of four radio receiving transmitting modules, exhaust blower state detection unit, air compensation device control unit
Operating status, indoor and outdoor pressure value.
The invention has the advantages that
House fresh air positive pressure safeguards system based on Internet of Things of the invention, in the general of existing indoor positive pressure fresh air system
On the basis of function, using the running state information of the mechanical ventilators such as platform of internet of things acquisition smoke exhaust ventilator, exhaust blower, reduce
Wired connection adversely affects the beauty in room etc.；According to the operating status of the mechanical ventilators such as smoke exhaust ventilator, exhaust blower, certainly
The dynamic air output for adjusting pressure fan, while the adaptable benefit air quantity of Bu Feng executing agency output is controlled, to maintain indoor positive pressure shape
State guarantees indoor air quality；When indoor positive pressure state is destroyed, alarm can be started in time, prompt to check in room in time
Air reveals position.
Detailed description of the invention
Fig. 1 is that house Xingfeng capsule system of the invention lays the exemplary diagram being installed in room；
Fig. 2 is the structural block diagram of smoke exhaust ventilator state detection unit of the invention；
Fig. 3 is the structural block diagram of exhaust blower state detection unit of the invention；
Fig. 4 is the structural block diagram of air compensation device control unit of the invention；
Fig. 5 is the structural block diagram of indoor and outdoor pressure differential detection unit of the invention；
Fig. 6 is the structural block diagram of new blower control unit of the invention.
Specific embodiment
Below in conjunction with drawings and examples, the present invention is described in further detail.
As shown in figures 1 to 6, the house fresh air positive pressure safeguards system disclosed by the invention based on Internet of Things, including new blower control
Unit 1 processed, air compensation device control unit 2, smoke exhaust ventilator state detection unit 3, exhaust blower state detection unit 4, indoor external pressure
Poor detection unit 5.
Smoke exhaust ventilator state detection unit 3 is installed on the position of cooking-fume exhauster, for detecting the operation of smoke exhaust ventilator
Status information, and the running state information of smoke exhaust ventilator is sent to new blower control unit 1 and air compensation device control unit 2.
As shown in Fig. 2, smoke exhaust ventilator state detection unit 3 includes the first main control chip, first switch amount input channel, the first wireless receipts
Send out module, the first address configuration circuit, the first timer circuit, the first memory module, the first clock circuit, the first power management
Module；The driving switch of smoke exhaust ventilator is connected by first switch amount input channel with the signal input part of the first main control chip
Connect, the end I/O of the first main control chip respectively with the first radio receiving transmitting module, the first address configuration circuit, the first memory module phase
Connection, the first timer circuit are connected with the signal input part of the first main control chip, provide timing letter for the first main control chip
Number, the first clock circuit is connected with the signal input part of the first main control chip, clock signal is provided for the first main control chip, the
One power management module is connected with the power end of the first main control chip, provides electric power for entire unit.Match the first address
Circuits are for carrying out coding configuration (see Table 1 for details), the driving switch of smoke exhaust ventilator to the address of smoke exhaust ventilator and operating status
Signal is sent to the first main control chip through first switch amount input channel, the first main control chip by corresponding gear state signal,
Corresponding encoded signal, timing signal etc. are sent in the form of the running state information of smoke exhaust ventilator through the first radio receiving transmitting module
New blower control unit 1 and air compensation device control unit 2.
Exhaust blower state detection unit 4 is installed on the position of toilet exhaust blower, for detecting the operating status of exhaust blower
Information, and the running state information of exhaust blower is sent to new blower control unit 1 and air compensation device control unit 2.Such as Fig. 3 institute
Show, exhaust blower state detection unit 4 includes the second main control chip, second switch amount input channel, the second radio receiving transmitting module, the
Double-address configuration circuit, the second timer circuit, the second memory module, second clock circuit, second source management module；Air draft
The driving switch of machine is connected by second switch amount input channel with the signal input part of the second main control chip, the second master control core
The end I/O of piece is connected with the second radio receiving transmitting module, the second address configuration circuit, the second memory module respectively, the second timing
Device circuit is connected with the signal input part of the second main control chip, provides timing signal, second clock electricity for the second main control chip
Road is connected with the signal input part of the second main control chip, provides clock signal for the second main control chip, second source manages mould
Block is connected with the power end of the second main control chip, provides electric power for entire unit.Second address configuration circuit for pair
The address of exhaust blower and operating status carry out coding configuration (referring to table 1), and the driving switch signal of exhaust blower is through second switch amount
Input channel is sent to the second main control chip, and the second main control chip is by corresponding gear state signal, corresponding encoded signal, meter
When signal etc. be sent to new blower control unit 1 through the second radio receiving transmitting module in the form of the running state information of exhaust blower and mend
Wind apparatus control unit 2.
1 smoke exhaust ventilator of table and exhaust blower operating status coded format
Air compensation device control unit 2 is installed on kitchen, toilet, is used under smoke exhaust ventilator and/or exhaust blower open state,
The benefit wind that adaptability is carried out to kitchen and/or toilet, reduces the influence to other rooms outside kitchen and toilet, keeps indoor
Barotropic state, meanwhile, the running state information of oneself is sent to new blower control unit 1.As shown in figure 4, air compensation device
Control unit 2 include third main control chip, mend blower structure drive module, mend wind file position feedback module, third radio receiving transmitting module,
Third address configuration circuit, third memory module, third clock circuit, third power management module；The I/O of third main control chip
End is connected with third radio receiving transmitting module, third address configuration circuit, third memory module respectively, third clock circuit and the
The signal input part of three main control chips is connected, and provides clock signal, third power management module and for third main control chip
The power end of three main control chips is connected, and provides electric power for entire unit；Third address configuration circuit is used for smoke pumping
The address and operating status of machine and exhaust blower carry out coding configuration (being shown in Table 1).
According to the structural requirement in kitchen and toilet, if there is window in kitchen, toilet, Ze Bu wind executing agency can be configured
Blower is mended for valve-types such as the electronic single leaf valve, electric multiblade valve or the electric brake plate valves that are mounted on window；If kitchen, toilet
There is no window or needed air filtering, Ze Bu wind executing agency is configurable to mechanically mend blower, using installation of ceiling machinery
Formula mends blower, and outdoor air introduction machine tool formula is mended blower using the hole on wall.As shown in figure 4, blower is mended for valve-type,
Mending blower structure drive module includes D/A conversion circuit, power amplification circuit, and the control signal output of third main control chip is through D/
A conversion circuit, power amplification circuit are connected with the control terminal that valve-type mends blower.For mechanically mending blower, blower structure is mended
Drive module includes pwm circuit, power amplification circuit, and the control signal output of third main control chip is put through pwm circuit, power
Big circuit is connected with the mechanical control terminal for mending blower.Third main control chip can control by exporting different control signals
Realize different benefit air quantity, specifically:
The third radio receiving transmitting module of air compensation device control unit 2 receives the pumping that smoke exhaust ventilator state detection unit 3 is sent
The running state information for the exhaust blower that the running state information and/or exhaust blower state detection unit 4 of kitchen ventilator are sent, third
For main control chip according to the running state information of smoke exhaust ventilator and/or exhaust blower, Xiang Bufeng executing agency exports different control letters
Number.For example, smoke exhaust ventilator sets 0,1,2,3 four gear altogether, exhaust blower sets 0,1,2,3 four gear altogether；It is total that valve-type mends blower
If three aperture θ 1, θ 2, θ 3, the operational taps 1,2,3 (0 grade is in off state) of smoke exhaust ventilator or exhaust blower, machine are respectively corresponded
Tool formula mends blower and sets three revolving speeds n1, n2, n3 altogether, respectively corresponds the operational taps 1,2,3 of smoke exhaust ventilator or exhaust blower；Mend wind dress
The running state information for setting the smoke exhaust ventilator based on the received of control unit 2, it is any one in 1-3 to judge that smoke exhaust ventilator is run on
Shelves, the running state information of exhaust blower, judges that exhaust blower runs on any one shelves in 1-3, for valve-type based on the received
Blower is mended, third main control chip is according to smoke exhaust ventilator and/or the operational taps of exhaust blower, through D/A conversion circuit, power amplification electricity
Road direction valve-type mends the voltage signal of blower output 0-10V, so that valve-type mends blower and is adjusted to the aperture adapted to, provides and mutually fits
The benefit air quantity answered exports certain arteries and veins to mechanical blower of mending through pwm circuit, power amplification circuit for mechanically mending blower
Bandwidth signals provide adaptable benefit air quantity so that mechanically mending blower is adjusted to the revolving speed adapted to.
Wherein, the operational taps (aperture/revolving speed) of the operational taps of smoke exhaust ventilator and/or exhaust blower and Bu Feng executing agency
Between corresponding relationship, can by experiment obtain, and according to experimental result generate include gear adjust the table of comparisons, be stored in third
In memory module, the gear adjust the table of comparisons --- aperture/revolving speed of the Bu Feng executing agency --- voltage that may include target air volume/
PWM--- smoking smoke machine/exhaust blower operational taps, the running state information of smoke exhaust ventilator and/or exhaust blower based on the received,
It searches gear and adjusts the table of comparisons, determine the operational taps of corresponding smoking smoke machine/exhaust blower, further determine that the defeated of control signal
It is worth out, third main control chip exports corresponding control signal to corresponding Bu Feng executing agency, provides adaptable benefit air quantity.
Mend the operation that wind file position feedback module is used to determine Bu Feng executing agency according to the operating status of Bu Feng executing agency
Gear information.Blower is mended for valve-type, control signal (such as 0- that blower exports is mended to valve-type according to third main control chip
10V standard voltage value), the operational taps coding that valve-type mends blower is divided into corresponding gear, for example, voltage value is 0V volume
Code is 00, and valve-type mends blower and corresponds to closed state；Voltage value is that 2V is encoded to 01, and valve-type mends fan operation in 1 grade；Voltage
Value is that 4V is encoded to 10, and valve-type mends fan operation in 2 grades；Voltage value is that 6V is encoded to 11, and valve-type mends fan operation in 3
Shelves.For mechanically mending blower, according to the mechanical revolving speed or wind speed size for mending blower, by the mechanical operational taps for mending blower
Coding is divided into corresponding gear, for example, the first tachometer value is encoded to 00, mechanical blower of mending corresponds to closed state；Second turn
Fast value is encoded to 01, and mechanical fan operation of mending is in 1 grade；Third tachometer value is encoded to 10, and mechanical fan operation of mending is in 2 grades；
4th tachometer value is encoded to 11, and mechanical fan operation of mending is in 3 grades of (relationships of revolving speed and coding, according to selected blower warp
It crosses experiment to determine).Air compensation device control unit 2 believes the operating status including the operational taps information of Bu Feng executing agency
Breath is sent to new blower control unit 1 through third radio receiving transmitting module.
New blower control unit 1 be typically placed at parlor, it can be achieved that existing indoor positive pressure fresh air system general utility functions,
It is equipped with things-internet gateway as platform of internet of things, smoke exhaust ventilator state detection unit is can receive, exhaust blower state detection unit, mends
The running state information of wind apparatus control unit, meanwhile, it can be according to smoke exhaust ventilator state detection unit 3, exhaust blower state-detection
The air output of the running state information control pressure fan of unit 4, receives running state information, the room of air compensation device control unit 2
The detection information of inside and outside differential pressure measuring unit 5 shows every running state information and timely alert, guarantees indoor dimension
Hold barotropic state.As described in Figure 6, new blower control unit 1 includes the 4th main control chip, pressure fan drive module, Electrostatic Absorption
Control module, PM2.5 detection module, human-computer interaction module, the 4th radio receiving transmitting module, the 4th address configuration circuit, the 4th deposit
Store up module, the 4th clock circuit, the 4th power management module；The end I/O of 4th main control chip respectively with the 4th wireless receiving and dispatching mould
Block, the 4th address configuration circuit, the 4th memory module are connected, the signal input part of the 4th clock circuit and the 4th main control chip
It is connected, provides clock signal for the 4th main control chip, the 4th power management module is connected with the power end of the 4th main control chip
It connects, provides electric power for entire unit；4th address configuration module is used for address and operation to smoke exhaust ventilator and exhaust blower
State carries out coding configuration (being shown in Table 1).
PM2.5 detection module is used for the indoor PM2.5 concentration of real-time monitoring comprising PM2.5 sensor, signal condition electricity
Road, A/D conversion circuit, PM2.5 sensor are defeated by signal conditioning circuit, A/D conversion circuit and the data of the 4th main control chip
Enter end to be connected；Electrostatic Absorption control module realizes start-up and shut-down control and electricity for controlling high-pressure electrostatic adsorption filter
Source voltage monitoring and adjust, air-supply drive circuit is used to control the revolving speed of pressure fan, be generally divided into 100m3/h, 200m3/h,
300m3/h tri- is kept off, and the PM2.5 concentration signal that the 4th main control chip is detected according to PM2.5 detection module controls to adjust pressure fan
Air output, when PM2.5 concentration is lower, pressure fan revolving speed is lower, reduces air output, and when PM2.5 concentration is higher, pressure fan turns
Speed is higher, increases air output, this partly belongs to the technology that existing indoor positive pressure fresh air system has been carried out, and the present invention does not make in detail
It describes in detail bright.
Human-computer interaction module includes touch screen, alarm unit, and touch screen is connected with the end I/O of the 4th main control chip, can
Whole system is controlled by touch screen operation, while being shown through the received smoke exhaust ventilator state-detection list of the 4th radio receiving transmitting module
First 3, exhaust blower state detection unit 3, the operating status of air compensation device control unit 2, indoor and outdoor pressure value etc., the 4th master control core
The control signal output of piece is connected with alarm unit, when indoor external differential is less than preset minimum differntial pressure threshold value, starting
Alarm.History data also periodically can be sent to cloud platform by new blower control unit 1 of the invention, realize Interior Space makings
The monitoring and management of amount.
Indoor and outdoor differential pressure measuring unit 5 is installed on indoor near window position, for detecting the pressure difference data of indoor and outdoor, concurrently
It send to new blower control unit 1, when indoor external differential is less than the minimum differntial pressure threshold value of setting, passes through new blower control unit 1
Alarm unit start warning note.As shown in figure 5, indoor and outdoor differential pressure measuring unit 5 includes the 5th main control chip, pressure differential detection
Module, the 5th radio receiving transmitting module, the 5th address configuration circuit, the 5th memory module, the 5th timer circuit, the 5th clock electricity
Road, the 5th power management module；The end I/O of 5th main control chip is electric with the 5th radio receiving transmitting module, the 5th address configuration respectively
Road, the 5th memory module are connected, and the 5th timer circuit is connected with the signal input part of the 5th main control chip, main for the 5th
It controls chip and timing signal is provided, the 5th clock circuit is connected with the signal input part of the 5th main control chip, is the 5th master control core
Piece provides clock signal, and the 5th power management module is connected with the power end of the 5th main control chip, provides electricity for entire unit
Source electric power；5th address configuration module be used for the address of smoke exhaust ventilator and exhaust blower and operating status carry out coding configuration (see
Table 1).
Pressure differential detection module is for minute-pressure difference signal inside and outside collection room comprising micro-pressure sensor, signal conditioning circuit,
A/D conversion circuit, micro-pressure sensor are inputted by the data of signal conditioning circuit, A/D conversion circuit and the 5th main control chip
End is connected.The indoor and outdoor minute-pressure difference signal of pressure differential detection module acquisition is sent to new air-blower control through the 5th radio receiving transmitting module
Received minute-pressure difference signal is compared by unit 1, new blower control unit 1 with the minimum differntial pressure threshold value of preservation, if being less than most
Small pressure difference threshold value then starts alarm unit and carries out warning note.
STM32F103V type single-chip microcontroller can be used in above-mentioned each main control chip, and CC2420 type core can be used in each radio receiving transmitting module
Piece, the radio frequency for ZigBee-network is sent and transmission, and TLG09UA01 type wi-fi module can also be used, and is suitable for having UART
In the facility environment of interface, meet the interface requirement of STM32.On the one hand each power management module carries out the alternating current of input whole
On the other hand stream filtering voltage regulation can also manage lithium battery charging to provide multiple power sources.
The operation principle and process of house fresh air positive pressure safeguards system based on Internet of Things of the invention is:
1, nominal situation (not opening smoke exhaust ventilator and exhaust blower)
When room is in closed state and smoke exhaust ventilator and exhaust blower are in close state, outdoor fresh air passes through new blower
After the processing of control unit 1, reaches certain cleanliness and be sent into interior, make the certain positive pressure of indoor formation, it will with certain rate of ventilation
Indoor pollutant is discharged to outdoor using gap.New blower control unit 1 can be adjusted automatically according to PM2.5 or TVOC concentration
Section, according to current indoor air quality, adjusts air output appropriate.New 1 real-time reception of blower control unit, monitoring air compensation device
The operation of control unit 2, smoke exhaust ventilator state detection unit 3, exhaust blower state detection unit 4, indoor and outdoor pressure differential detection unit 5
State and detection information.
2, the operating condition that links (smoke exhaust ventilator and/or exhaust blower are opened)
When the starting of the exhaust blower of the smoke exhaust ventilator in kitchen and/or toilet, smoke exhaust ventilator state detection unit 3 will pump
The running state information, and/or exhaust blower state detection unit 4 of smoke machine are by the running state information of exhaust blower, through corresponding nothing
Line transceiver module is sent to corresponding air compensation device control unit 2 and new blower control unit 1；Air compensation device control unit 2
According to the running state information of received smoke exhaust ventilator and/or exhaust blower, the movement of Bu Feng executing agency is controlled, the benefit wind of adaptation is provided
Amount, so that the use of smoke exhaust ventilator and/or exhaust blower can reduce the influence to room except kitchen and/or toilet；Fresh air
Machine control unit 1 receives the running state information of smoke exhaust ventilator, and/or exhaust blower, automatically adjusts pressure fan to maximum and blows
Amount receives the running state information of Bu Feng executing agency, the minute-pressure difference data that differential pressure measuring unit 5 detects inside and outside receiving chamber, warp
Touch screen shows all data.
When the running state information of smoke exhaust ventilator state detection unit 3 and exhaust blower state detection unit 4 is to close, mend
Wind apparatus control unit 2 controls Bu Feng executing agency automatically into closed state, and new blower control unit 1 controls pressure fan delay
After 5S, into new blower nominal situation.
3, positive pressure destroys alarm
External differential in 5 real-time detection room of indoor and outdoor pressure differential detection unit, and the minute-pressure difference signal that will test passes through the 5th nothing
Line transceiver module is sent to new blower control unit 1.New blower control unit 1 is by the minimum of received minute-pressure difference signal and preservation
Threshold pressure differential is compared, if being less than minimum differntial pressure threshold value, is started alarm unit and is carried out warning note, positive pressure is prompted to destroy,
It please check Bu Feng executing agency and door and window leakage；If indoor external differential is lower than minimum differntial pressure threshold value, and smoke exhaust ventilator, exhaust blower,
Bu Feng executing agency operating status is in closed state, then further prompt please check that door and window is revealed.
The above is presently preferred embodiments of the present invention and its technical principle used, for those skilled in the art
For, without departing from the spirit and scope of the present invention, any equivalent change based on the basis of technical solution of the present invention
Change, simple replacement etc. is obvious changes, all fall within the protection scope of the present invention.
Claims (8)
1. the house fresh air positive pressure safeguards system based on Internet of Things, which is characterized in that including new blower control unit, air compensation device
Control unit, smoke exhaust ventilator state detection unit, exhaust blower state detection unit,
Smoke exhaust ventilator state detection unit is used to detect the gear state signal of smoke exhaust ventilator, and by the gear state of smoke exhaust ventilator
Signal is sent to new blower control unit, air compensation device control unit,
Exhaust blower state detection unit is used to detect the gear state signal of exhaust blower, and the gear state signal of exhaust blower is sent out
It send to new blower control unit, air compensation device control unit,
Air compensation device control unit is used for according to the gear state signal of smoke exhaust ventilator and/or the gear state signal of exhaust blower,
The adaptable benefit air quantity of output；New blower control unit receives the gear state signal of smoke exhaust ventilator and/or the gear of exhaust blower
Status signal, control pressure fan export certain air quantity, guarantee indoor maintenance barotropic state；
Further include indoor and outdoor pressure differential detection unit, is sent for detecting indoor and outdoor pressure difference signal, and by indoor and outdoor pressure difference signal
To the new blower control unit, when the indoor and outdoor pressure difference signal is less than the minimum differntial pressure threshold value of setting, starting alarm.
2. the house fresh air positive pressure safeguards system according to claim 1 based on Internet of Things, which is characterized in that the oil pumping
Smoke machine state detection unit includes the first main control chip, first switch amount input channel, the first radio receiving transmitting module, the first address
Configuration circuit, the first timer circuit, the first address configuration circuit is for compiling the address of smoke exhaust ventilator and operating status
Code configuration, the driving switch signal of smoke exhaust ventilator are sent to the first main control chip, the first master control through first switch amount input channel
Chip by corresponding gear state signal, corresponding encoded signal, the first timer timing signal with the operation of smoke exhaust ventilator
Status information is sent to the new blower control unit and air compensation device control unit through the first radio receiving transmitting module.
3. the house fresh air positive pressure safeguards system according to claim 2 based on Internet of Things, which is characterized in that the air draft
Machine state detection unit is matched including the second main control chip, second switch amount input channel, the second radio receiving transmitting module, the second address
Circuits, the second timer circuit, the second address configuration circuit are used to carry out the address of exhaust blower and operating status coding to match
It sets, the driving switch signal of exhaust blower is sent to the second main control chip through second switch amount input channel, and the second main control chip will
The timing signal of gear state signal, corresponding encoded signal, the second timer is accordingly with the running state information of exhaust blower
The new blower control unit and air compensation device control unit are sent to through the second radio receiving transmitting module.
4. the house fresh air positive pressure safeguards system according to claim 3 based on Internet of Things, which is characterized in that the benefit wind
Device control units includes third main control chip, mends blower structure drive module third radio receiving transmitting module, the smoke exhaust ventilator
Running state information and/or the running state information of exhaust blower are transmitted to third main control chip through third radio receiving transmitting module, and
Three main control chips execute drive module driving benefit wind according to smoke exhaust ventilator and/or the gear state signal of exhaust blower, by mending wind
The adaptable benefit air quantity of executing agency's output.
5. the house fresh air positive pressure safeguards system according to claim 4 based on Internet of Things, which is characterized in that the benefit wind
Device control units further includes mending wind file position feedback module, for according to the determination of the operating status of the Bu Feng executing agency
The operational taps information of Bu Feng executing agency, and the operational taps information is sent to through the third radio receiving transmitting module described
New blower control unit.
6. the house fresh air positive pressure safeguards system according to claim 5 based on Internet of Things, which is characterized in that the benefit wind
Executing agency includes that valve-type mends blower and mechanical benefit blower, mends blower for valve-type, mending blower structure drive module includes
The control signal output of D/A conversion circuit, power amplification circuit, the third main control chip is put through D/A conversion circuit, power
Big circuit is connected with the control terminal that valve-type mends blower；For mechanically mending blower, mending blower structure drive module includes PWM electricity
Road, power amplification circuit, the control signal output of the third main control chip is through pwm circuit, power amplification circuit and machinery
The control terminal that formula mends blower is connected.
7. the house fresh air positive pressure safeguards system according to claim 6 based on Internet of Things, which is characterized in that the third
Main control chip further includes third memory module, and for storing the gear adjustment table of comparisons, third main control chip is pumped based on the received
The gear state signal of smoke machine and/or exhaust blower searches the gear adjustment table of comparisons, according to lookup result, mends wind to corresponding
The corresponding control signal of executing agency's output, provides adaptable benefit air quantity.
8. the house fresh air positive pressure safeguards system according to claim 7 based on Internet of Things, which is characterized in that the fresh air
Machine control unit includes the 4th main control chip, pressure fan drive module, Electrostatic Absorption control module, PM2.5 detection module, man-machine
Interactive module, the 4th radio receiving transmitting module, PM2.5 detection module are used for the indoor PM2.5 concentration of real-time monitoring, Electrostatic Absorption control
Molding block is for controlling high-pressure electrostatic adsorption filter, realizing start-up and shut-down control and supply voltage monitoring and adjusting, air-supply
Machine drive module is used to control the revolving speed of pressure fan, and human-computer interaction module includes touch screen, alarm unit, and touch screen and the 4th lead
The end I/O of control chip is connected, and can control whole system by touch screen operation, show received through the 4th radio receiving transmitting module
Smoke exhaust ventilator state detection unit, exhaust blower state detection unit, the operating status of air compensation device control unit, indoor external pressure
Value.
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109838863A (en) * | 2017-11-28 | 2019-06-04 | 山西彩云归科技有限公司 | A kind of dynamic indoor pressure regulating system |
| CN108224529A (en) * | 2018-03-08 | 2018-06-29 | 杭州老板电器股份有限公司 | Mend air-valve and central cooking fume control equipment |
| CN110043982B (en) * | 2019-04-16 | 2020-08-28 | 北京联合大学 | Dynamic self-adaptive differential pressure fluctuation control system and method |
| CN110793146B (en) * | 2019-12-18 | 2021-12-07 | 海底捞控股私人有限公司 | Ground exhaust system and control method thereof |
| CN111623480B (en) * | 2020-03-03 | 2021-09-28 | 上海朗绿建筑科技股份有限公司 | Control method and device for air exhaust system capable of keeping indoor micro-positive pressure |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105135566A (en) * | 2015-09-09 | 2015-12-09 | 同济大学 | Pollutant obstructing system based on air directional flowing principle and using method of pollutant obstructing system |
| EP2955452A1 (en) * | 2013-02-07 | 2015-12-16 | Daikin Industries, Ltd. | Ventilation device |
| CN205137612U (en) * | 2015-11-27 | 2016-04-06 | 上海朗绿建筑科技有限公司 | Oil smoke air supplement device |
| CN105716151A (en) * | 2016-03-31 | 2016-06-29 | 荣国华 | Indoor fresh air and cooking fume exhausting system |
-
2017
- 2017-05-22 CN CN201710366021.9A patent/CN107084502B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2955452A1 (en) * | 2013-02-07 | 2015-12-16 | Daikin Industries, Ltd. | Ventilation device |
| CN105135566A (en) * | 2015-09-09 | 2015-12-09 | 同济大学 | Pollutant obstructing system based on air directional flowing principle and using method of pollutant obstructing system |
| CN205137612U (en) * | 2015-11-27 | 2016-04-06 | 上海朗绿建筑科技有限公司 | Oil smoke air supplement device |
| CN105716151A (en) * | 2016-03-31 | 2016-06-29 | 荣国华 | Indoor fresh air and cooking fume exhausting system |
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