CN105588259B - A kind of VMC and control method, control device - Google Patents

Embodiments of the invention provide a kind of VMC and control method, control device, it is related to VMC control field, the different filter screen outputting alarm signals that can be directed in VMC so that filter screen ensures the air purification effect of VMC by fully using in order to avoid cause cost to waste.Concrete scheme is：Determine the concentration scale of filtering object, the maximal work time of n-th of filter screen in N number of filter screen according to included by filtering object concentration scale determines VMC, obtain the effective time of n-th of filter screen in N number of filter screen, when the effective time of n-th of filter screen in N number of filter screen reaching capacity the working time, outputting alarm signal.The present invention is used for VMC and controlled.

A kind of VMC and control method, control device

Technical field

The present invention relates to VMC control field, more particularly to a kind of VMC and control method, control device.

Background technology

In recent years, the harm of air pollution on human health is increasingly paid close attention to by people, and VMC is because it is to sky The catharsis of gas is approved by market.VMC is filtered by filter screen to air, and will pass through filtered air Interior is sent into, while the air of interior is sent to outdoor, so as to realize the purification of air and circulation.

After some time of use, filtering object can be gathered in screen surface to filter screen, and the filtering for influenceing filter screen is made With and ventilation effect.In the prior art, the pressure differential of filter screen both sides is detected, if the pressure differential of filter screen both sides exceedes Predetermined threshold value, then send the dirty stifled cue of filter screen.Or VMC just reminds user to change filter at regular intervals Net.

VMC generally includes more than one filter screen, and different objects is played a role in filtering respectively, some filter screens Can clean Posterior circle use, some, which can not be recycled, can only more renew filter screen, in addition, the cleaning of different type filter screen or Replacement cycle is also different.Dirty stifled prompting or the mode reminded at regular intervals are carried out according to pressure difference in the prior art, User can not accurately grasp cleaning or the replacing construction of different filter screens, if not cleaning or changing for a long time, influence new Wind system is to the clean-up effect of air, if changing filter screen too early, filter screen is not used fully, then causes this waste.

The content of the invention

Embodiments of the invention provide a kind of VMC and control method, control device, can be directed in VMC Different filter screen outputting alarm signals, avoid because filter screen is not used fully and caused by cost waste, while ensure new The air purification effect of wind system.

To reach above-mentioned purpose, embodiments of the invention adopt the following technical scheme that：

The embodiments of the invention provide a kind of VMC control device, described device includes：Processing unit and The signal output unit being connected with the processing unit；

The processing unit, for determining filtering object concentration scale；

The processing unit, it is additionally operable to N number of filter according to included by the filtering object concentration scale determines VMC The maximal work time of n-th of filter screen in net；

The processing unit, it is additionally operable to obtain the effective time of n-th of filter screen in N number of filter screen, as the N When the effective time of n-th of filter screen in individual filter screen reaches the maximal work time, then to the signal output unit The first enabling signal is sent, wherein, the effective time of n-th of filter screen in N number of filter screen is in N number of filter screen The motor that n-th of filter screen is installed to the VMC after the VMC is in time of operating condition；

The signal output unit, for after first enabling signal is received, outputting alarm signal, wherein, institute Alarm signal is stated to be used to indicate that the effective time of n-th of filter screen in N number of filter screen reaches the maximal work time.

The embodiments of the invention provide a kind of VMC, the system includes any fresh air provided in an embodiment of the present invention System control device.

The embodiments of the invention provide a kind of VMC control method, methods described includes：

The concentration scale of filtering object is determined, N number of filter according to included by filtering object concentration scale determines VMC The maximal work time of n-th of filter screen in net, the effective time of n-th of filter screen in N number of filter screen is obtained, when N number of filter The effective time of n-th of filter screen in net reach capacity the working time when, outputting alarm signal, in N number of filter screen The effective time of n-th of filter screen is that n-th of filter screen in N number of filter screen is installed to the fresh air after the VMC The motor of system is in the time of operating condition, and the alarm signal is used to indicate having for n-th of filter screen in N number of filter screen The effect working time reaches the maximal work time.

VMC and control method that embodiments of the invention are provided, control device, by being wrapped to VMC The effective time of the filter screen included carries out timing, and the different filter screens being directed to according to the effective time in VMC, which export, accuses Alert signal, avoid screen replacing too early so that filter screen not fully using and cause cost to waste, while avoid filter screen for a long time Do not clean or change and influence the air purification effect of VMC.

Brief description of the drawings

In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, embodiment will be described below In the required accompanying drawing used be briefly described, it should be apparent that, drawings in the following description be only the present invention some Embodiment, for those of ordinary skill in the art, on the premise of not paying creative work, can also be attached according to these Figure obtains other accompanying drawings.

Fig. 1 is a kind of structural representation for VMC control device that embodiments of the invention provide；

Fig. 2 is a kind of structural representation for VMC that embodiments of the invention provide；

Fig. 3 is a kind of schematic flow sheet for VMC control method that embodiments of the invention provide.

Embodiment

Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made Embodiment, belong to the scope of protection of the invention.

Reference picture 1, embodiments of the invention provide a kind of VMC control device 10, including：Processing unit 101 and The signal output unit 102 being connected with processing unit 101.

Wherein, processing unit 101, for determining filtering object concentration scale.So-called filtering object refers to sky to be filtered The material filtered out in gas (being usually outdoor air) by filter screen.Optionally, filtering object can be common air pollutants, or Person is other to need to reduce its material of content or concentration in atmosphere, including but not limited to oil smoke, dust, mould, formaldehyde, dissipate Send out the material of peculiar smell, or a kind of material divided according to some standards, such as PM (particulate matter, fine grained Thing) 10, PM2.5 etc..

VMC can weigh to the catharsis of air according to filtration of the VMC to different filtering objects Amount.After some time of use, filtering object can be gathered in screen surface to the filter screen of VMC, influence the mistake of filter screen Filter effect and ventilation effect, it is therefore desirable to filter screen is cleaned or changed at regular intervals.The concentration of filtering object Difference, the time interval cleaned or changed to filter screen are also different.In the present embodiment, the concentration of filtering object is divided into Different grades, i.e., different concentration ranges.Herein, by taking PM2.5 concentration as an example, by PM2.5 concentration be divided into 0 microgram/ Cubic meter is to 70 micrograms/cubic meter, 71 micrograms/cubic meter to 100 micrograms/cubic meter, 100 micrograms/cubic meter three above etc. Level.Optionally, for different filtering objects, the quantity of concentration scale, and the scope of each concentration scale can be according to reality Border situation is set.

Optionally, VMC control device 10 can include user interface, and pass is provided for different filtering objects In the other option of concentration level, selected by user.Processing unit 101 determines filtering object concentration etc. according to the operation of user Level, or, VMC control device 10 is carried out by using modes such as sensors to the filtering object concentration in outdoor air Measurement, processing unit 101 determine filtering object concentration scale according to measurement result.The present invention couple determines filtering object concentration scale Concrete mode do not limit.

Processing unit 101, it is additionally operable in N number of filter screen according to included by filtering object concentration scale determines VMC The maximal work time of n-th of filter screen.

The maximal work time of filter screen, for indicating cleaning or the replacement cycle of filter screen.VMC control device 10 The different filter screen outputting alarm signals that can be directed in VMC, the present embodiment is with N number of filter screen included by VMC N-th of filter screen exemplified by, VMC control device 10 is illustrated.Optionally, processing unit 101 can preserve N number of filter Maximal work time of n-th of filter screen corresponding under different filtering object concentration scales in net, then processing unit 101 is true After determining filtering object concentration scale, you can determine the maximal work time of n-th of filter screen in N number of filter screen.

Processing unit 101, the effective time for n-th of filter screen for being additionally operable to obtain in N number of filter screen, when in N number of filter screen N-th of filter screen effective time reach capacity the working time when, then to signal output unit 102 send the first startup letter Number.Wherein, the effective time of n-th of filter screen in N number of filter screen is that n-th of filter screen in N number of filter screen is installed to fresh air system The motor of VMC is in the time of operating condition after system.

Signal output unit 102, for after the first enabling signal is received, outputting alarm signal, wherein, alarm signal For indicating that the effective time of n-th of filter screen in N number of filter screen reaches capacity the working time.

Optionally, signal output unit 102 includes：Change alarm module 1021, cleaning alarm module 1022.

Processing unit 101, the filter screen type for n-th of filter screen for being additionally operable to determine in N number of filter screen, wherein, in N number of filter screen The filter screen type of n-th of filter screen is used to indicate whether n-th of filter screen in N number of filter screen be capable of washing.Specifically, processing unit 101 The filter screen type of n-th of filter screen in N number of filter screen can be preserved.

Processing unit 101, specifically for when n-th of filter screen in N number of filter screen is capable of washing, then to cleaning alarm module 1022 send the first enabling signal, when n-th of filter screen in N number of filter screen be not capable of washing, are then sent out to replacing alarm module 1021 Send the first enabling signal.

Change alarm module 1021 to be used for after the first enabling signal is received, export screen replacing indication signal, cleaning is accused Alert module 1022 is used for after the first enabling signal is received, and exports filter gauze cleaning indication signal, wherein, screen replacing indication signal For indicating to change n-th of filter screen in N number of filter screen, filter gauze cleaning indication signal is used to indicate n-th cleaned in N number of filter screen Filter screen.It is specific optional, alarm signal can by blowing a whistle, status lamp show etc. that mode exports.

Optionally, VMC control device 10 also includes detection unit 103.

Detection unit 103, the state of the motor for detecting VMC, and when the state of motor changes, will Motor status information after change is sent to processing unit 101, wherein, motor status information is used for the motor for indicating VMC In operating condition or halted state.

Processing unit 101, it is additionally operable to according to motor status information, the time of operating condition is in the motor of VMC Carry out timing, and the effective time using timing result as n-th of filter screen in N number of filter screen.Specifically, when VMC When motor is in halted state, then time out, when the motor of VMC is again introduced into operating condition, then continues timing.

Optionally, VMC control device 10 also includes filter screen reset control unit 104.

Filter screen resets control unit 104, for obtaining the reset operational order of user, generates filter screen reset signal, and will Filter screen reset signal is sent to processing unit 101, wherein, filter screen reset signal is used to indicate processing unit 101 by N number of filter screen N-th of filter screen effective time reset.Optionally, filter screen, which resets control unit 104, can include user interface, User is resetted control unit 104 and sent by the user interface to filter screen resets operational order.It is further alternative, it is used for The user interface and the operation interface that operational order is resetted for sending for providing concentration level options can be same operations The different operating interface that interface or VMC provide.

Processing unit 101, it is additionally operable to reset the effective time of n-th of filter screen in N number of filter screen and defeated to signal Go out unit 102 and send the second enabling signal.Signal output unit 102, for after the second enabling signal is received, output to have resetted Into indication signal.

Optionally, in a kind of specific application scenarios, processing unit 101 is by counter to n-th in N number of filter screen The effective time of filter screen carries out timing.It is specific optional, after n-th of filter screen in N number of filter screen is installed to VMC, It is the effective time for thinking n-th of filter screen in N number of filter screen to have reached pole that the numerical value of counter, which increases a predetermined threshold value, The working time is limited, now, the filter screen reset signal hour counter that the transmission of filter screen reset unit is received with processing unit 101 shows The time shown is time zero, that is, n-th of the filter screen effective time completed in N number of filter screen resets.In N number of filter screen After n filter screen effective time aggregate-value is reset, increase predetermined threshold value when the time shown by counter, then controller is to letter Number output unit 102 sends the second enabling signal.

Or the maximum of counter is set, when the count value of counter reaches maximum, controller is to signal output Unit 102 sends the second enabling signal, and by by counter O reset, completing effective work to n-th of filter screen in N number of filter screen Make time clearing.

Optionally, VMC control device 10 also includes motor control unit 105, is sent out for reception processing unit 101 The motor control instruction sent, and the state of the motor according to motor control instruction control VMC.The motor of VMC State includes operating condition, halted state.Wherein, operating condition can be divided into different air output shelves further according to air output Position, such as including high wind shelves, apoplexy shelves and low wind shelves.Specifically, the present embodiment, which provides three kinds, optionally controls VMC Mode.

In first way, VMC control device 10 also includes function setup unit 106 and manual control unit 107。

Wherein function setup unit 106, for setting the manual control function of manual control unit 107.Control work(manually It is able to can include opening and closing VMC, filter screen reset control, filter gauze cleaning prompting, screen replacing prompting, VMC The operating instruction of motor and the function of motor status of adjustment VMC etc..Filter screen resets control function and is used to answer to filter screen Position control unit 104, which is sent, resets operational order, and instruction processing unit 101 is clear by the effective time aggregate-value of the first filter screen Zero.The motor status of VMC are adjusted, including the motor of control VMC enters operating condition or halted state, and Air quantity is adjusted when the motor of VMC is in operating condition.

Manual control unit 107, sent for receiving the manually operated request of user, and by manually operated request to processing Unit 101.Manual control unit 107 can provide user interface, and user triggers manually operated request by operation interface, Manually control function is controlled to VMC.

In the second way, VMC control device 10 includes function setup unit 106 and remote control unit 108.

Wherein, function setup unit 106, for setting the remote control function of remote control unit 108.Optionally, far Process control function can include some or all of function in manual control function, can also be set up according to actual demand other Function, such as n-th of filter screen inquiring about in N number of filter screen current effective time etc..

Remote control unit 108, sent for receiving remote control notification, and by remote control notification to processing unit 101。

Optionally, remote control function is enabled by function setup unit 106, that is, opens distance control mode.When long-range When control unit 108 does not receive remote control notification, VMC maintains current working condition, works as remote control unit 108 when receiving remote control notification, remote control notification is sent to processing unit 101, by processing unit 101 according to long-range Control data is controlled to VMC.For example, function setup unit 106 sets default mode of operation, including acquiescence air-supply Indication signal that amount, signal output unit 102 are exported etc..Meanwhile the priority of distance control mode is set higher than acquiescence work The priority of operation mode.Then under default mode of operation, when remote control unit 108 receives remote control notification, processing Unit 101 is controlled according to remote control notification to VMC.

In the third mode, VMC control device 10 includes function setup unit 106 and sensor automatically controls list Member 109.

Wherein, function setup unit 106, the sensor for setting sensor automatic control unit 109 automatically control work( Energy.Optionally, sensor automatic control function can include the filtering object concentration in measurement outdoor air, and by measurement result Send to processing unit 101, processing unit 101 and filtering object concentration rank is determined according to filtering object concentration, and further really The maximal work time of n-th of filter screen in fixed N number of filter screen.Sensor automatic control function can also include measurement room air In filtering object concentration, according to interior filtering object concentration value VMC is automatically controlled.For example, work as indoor mistake When filter object concentration exceedes preset upper limit, sensor automatic control unit 109 generates sensor and automatically controls request, and will sensing Device automatically controls request and sent to processing unit 101.Requesting processing 101 opens the motor of VMC or increases air-out Amount.When indoor filtering object concentration is less than pre-determined lower limit, requesting processing 101 closes motor or the reduction of VMC Air output.

The mode of VMC is optionally controlled with reference to three of the above, when the enabled control work(manually of function setup unit 106 Can, in remote control function and sensor automatic control function at least two when, can be by setting different control modes Priority, prevent the conflict between different control modes.

With reference to the manual control mode in first way, embodiments of the invention also provide another manual controlling party The difference of manual control mode in formula, with first way is：Manual control mode can need not pass through processing Unit 101, and directly VMC is controlled.

For example, manual control unit 107 includes duplex double-control switch, duplex double-control switch includes two buttons, and switch is pressed Key and air quantity button.Switch key is used for the power supply for being connected and disconnected from VMC control device 10, passes through switch key, user VMC can be opened and closed.The connection terminal of air quantity button air output gears different from motor control unit 105 respectively Control terminal connection, by air quantity button, user can be adjusted to the air output of VMC.Manual control unit 107 Hand-reset button can also be included, user's manually reset key resets control unit 104 and sent and resets operation to filter screen Instruction, instruction processing unit 101 reset the effective time aggregate-value of n-th of filter screen in N number of filter screen.

With reference to the control mode different to VMC, signal output unit 102 can export multiple indication signals, instruction The state of the mode of control VMC, the blower fan of VMC, filter screen reset indication signal etc..Meanwhile function setup unit 106 can be also used for preserving the attribute information of different filter screens, including the filter screen type of the filter screen, the corresponding filtering object, And the maximal work time corresponding to the various concentrations grade of filtering object.When VMC control device 10 switches on power Afterwards, processing unit 101 reads the attribute information of filter screen from function setup unit 106, determines the filter screen type and the limit of filter screen Working time.

The VMC control device that embodiments of the invention provide, by determining filtering object concentration scale, according to mistake Filter object concentration scale determines the maximal work time of filter screen, and the effective time of the filter screen included by VMC is carried out It is accumulative, according to the aggregate-value of effective time, for the different filter screen outputting alarm signals in VMC so that filter screen quilt Fully use in order to avoid causing cost to waste, and ensure the air purification effect of VMC.Meanwhile VMC control device Remote control unit and sensor automatic control unit, it can add or remove according to actual conditions, VMC control Both device can include, can also only include one or not include, to meet user for VMC controlling party The requirement of formula diversification and the consideration to cost.

Based on the embodiment corresponding to Fig. 1, embodiments of the invention provide a kind of VMC 20, shown in reference picture 2, newly Wind system 20 includes VMC control device 201, and wherein VMC control device 201 is in the embodiment corresponding to Fig. 1 Described VMC control device.

The VMC that embodiments of the invention provide is dense according to filtering object by determining filtering object concentration scale Degree grade determines the maximal work time of filter screen, the effective time of the filter screen included by VMC is added up, root According to the aggregate-value of effective time, for the different filter screen outputting alarm signals in VMC so that filter screen is fully made With in order to avoid cause cost to waste, and ensure the air purification effect of VMC.

Embodiment with reference to corresponding to Fig. 1, embodiments of the invention provide a kind of VMC control method, reference picture 3 It is shown, comprise the following steps：

301st, VMC control device determines the concentration scale of filtering object.

Filtering object can be common air pollutants, either other to need to reduce its content or concentration in atmosphere Material, optionally, filtering object can be PM2.5.

After some time of use, filtering object can be gathered in screen surface to filter screen, and the filtering for influenceing filter screen is made With and ventilation effect, it is therefore desirable to filter screen is cleaned or changed at regular intervals.The concentration of filtering object is different, The time interval cleaned or changed to filter screen is also different.

Optionally, VMC control device can be directed to different filtering objects and provide on the other option of concentration level, by User is selected, and filtering object concentration scale is determined according to the operation of user.Or VMC control device by using The modes such as sensor measure to the filtering object concentration in outdoor air, and processing unit determines filtering pair according to measurement result As concentration scale.

302nd, the pole of n-th of filter screen in N number of filter screen according to included by filtering object concentration scale determines VMC Limit the working time.

The maximal work time of filter screen, for indicating cleaning or the replacement cycle of filter screen.The present embodiment is with N number of filter screen N-th of filter screen exemplified by VMC control method provided by the invention is illustrated.Optionally, the attribute letter of filter screen is stored Breath, attribute information include the different filter screens maximal work time corresponding under different filtering object concentration scales.Then according to filter Net attribute information, it may be determined that pole of n-th of filter screen corresponding under identified filtering object concentration scale in N number of filter screen Limit the working time.

303rd, the effective time of n-th of filter screen in N number of filter screen is obtained, when having for n-th of filter screen in N number of filter screen The effect working time reach capacity the working time when, then outputting alarm signal.

Wherein, the effective time of n-th of filter screen in N number of filter screen is that n-th of filter screen in N number of filter screen is installed to newly The motor of VMC is in the time of operating condition after wind system, and alarm signal is used to indicate n-th of filter screen in N number of filter screen Effective time reach capacity the working time.

Optionally, the state of the motor of VMC is detected, the state of the motor of VMC includes operating shape State and halted state.The time progress timing of operating condition is in the motor of VMC, to obtain n-th in N number of filter screen The effective time of individual filter screen.Specifically, after n-th of filter screen in N number of filter screen is installed to VMC, to VMC The time that motor is in operating condition carries out timing, when the motor of VMC is in halted state, then time out, when new When the motor of wind system is again introduced into operating condition, continue timing.It is specific optional, by counter to n-th in N number of filter screen The effective time of individual filter screen carries out timing.

VMC includes at least one filter screen, and different filter screens are used to play a role in filtering to different objects.Filter screen class Type can be divided into type capable of washing and can not cleaning-type, type filter screen capable of washing can clean Posterior circle use, can not cleaning-type filter screen Can not recycle can only more renew filter screen.Therefore, be also can indicate that for different filter screen types, alarm signal to N number of filter N-th of filter screen in net is cleaned or changed.Optionally, the attribute information of filter screen can also include the filter screen class of filter screen Type, filter screen type are used to indicate whether n-th of filter screen in N number of filter screen be capable of washing.Then when n-th of filter screen in N number of filter screen can During cleaning, filter gauze cleaning indication signal is exported, when n-th of filter screen in N number of filter screen be not capable of washing, output screen replacing instruction Signal.

Optionally, after outputting alarm signal, the reset operational order of user is obtained, by n-th of filter screen in N number of filter screen Effective time reset.Specifically, providing user interface, user is controlled by user interface to VMC Device, which is sent, resets operational order.Specific optional, user interface can be the manual control with VMC wired connection Interface processed or the remote control interface with VMC wireless connection.

The VMC control method that embodiments of the invention provide, by determining filtering object concentration scale, according to mistake Filter object concentration scale determines maximal work time and the filter screen type of filter screen, to the effective of the filter screen included by VMC Working time is added up, and according to the aggregate-value of effective time, is believed for the different filter screen outputting alarms in VMC Number so that filter screen ensures the air purification effect of VMC by fully using in order to avoid cause cost to waste.

Through the above description of the embodiments, it is apparent to those skilled in the art that in the present invention Touch controller, it can be realized with hardware, or firmware is realized, or combinations thereof mode is realized.Realized when using software When, above-mentioned function can be stored in computer-readable medium or as the one or more instruction on computer-readable medium Or code is transmitted.Computer-readable medium includes computer-readable storage medium and communication media, and wherein communication media is included just In any medium that computer program is transmitted from a place to another place.Storage medium can be that computer can access Any usable medium.As example but it is not limited to：Computer-readable medium can include RAM (Random Access Memory, random access memory), ROM (Read Only Memory, read-only memory), EEPROM (Electrically Erasable Programmable Read Only Memory, EEPROM), CD-ROM (Compact Disc Read Only Memory, i.e. read-only optical disc) or other optical disc storages, magnetic disk storage medium or other magnetic storages set It is standby or can be used in carrying or store with instruction or data structure form desired program code and can be by computer Any other medium of access.

More than, it is only embodiment of the invention, but protection scope of the present invention is not limited thereto, and it is any to be familiar with Those skilled in the art the invention discloses technical scope in, change or replacement can be readily occurred in, should all be covered Within protection scope of the present invention.Therefore, protection scope of the present invention should be defined by scope of the claims.

1. A kind of 1. VMC control device, it is characterised in that including：Processing unit and the letter being connected with the processing unit Number output unit；

   The processing unit, for determining filtering object concentration scale；

   The processing unit, it is additionally operable in N number of filter screen according to included by the filtering object concentration scale determines VMC N-th of filter screen the maximal work time；

   The processing unit, it is additionally operable to obtain the effective time of n-th of filter screen in N number of filter screen, when N number of filter When the effective time of n-th of filter screen in net reaches the maximal work time, then sent to the signal output unit First enabling signal, wherein, the effective time of n-th of filter screen in N number of filter screen is n-th in N number of filter screen The motor that individual filter screen is installed to the VMC after the VMC is in time of operating condition；

   The signal output unit, for after first enabling signal is received, outputting alarm signal, wherein, the announcement Alert signal is used to indicate that the effective time of n-th of filter screen in N number of filter screen reaches the maximal work time.

2. 2. device according to claim 1, it is characterised in that

   The signal output unit includes：Change alarm module, cleaning alarm module；

   The processing unit, it is additionally operable to determine the filter screen type of n-th of filter screen in N number of filter screen, wherein, N number of filter The filter screen type of n-th of filter screen in net is used to indicate whether n-th of filter screen in N number of filter screen be capable of washing；

   The processing unit, specifically for when n-th of filter screen in N number of filter screen is capable of washing, then being alerted to the cleaning Module sends first enabling signal, when n-th of filter screen in N number of filter screen be not capable of washing, is then accused to described change Alert module sends first enabling signal；

   The replacing alarm module is used for after first enabling signal is received, and exports screen replacing indication signal, described clear Wash alarm module to be used for after first enabling signal is received, export filter gauze cleaning indication signal, wherein, the screen replacing Indication signal is used to indicate n-th of filter screen in replacing N number of filter screen, and the filter gauze cleaning indication signal is used to indicate to clean N-th of filter screen in N number of filter screen.

3. 3. device according to claim 1, it is characterised in that described device also includes detection unit；

   The detection unit, the state of the motor for detecting the VMC, and when the state of motor changes, will Motor status information after change is sent to the processing unit, wherein, the motor status information is used to indicate the fresh air The motor of system is in operating condition or halted state；

   The processing unit, it is additionally operable to according to the motor status information, operating condition is in the motor of the VMC Time carry out timing, and effective time using timing result as n-th of filter screen in N number of filter screen.

4. 4. device according to claim 1, it is characterised in that described device also includes filter screen and resets control unit；

   The filter screen resets control unit, for obtaining the reset operational order of user, generates filter screen reset signal, and by described in Filter screen reset signal is sent to the processing unit, wherein, the filter screen reset signal is used to indicate the processing unit by institute The effective time for stating n-th of filter screen in N number of filter screen resets；

   The processing unit, it is additionally operable to reset effective time of n-th of filter screen in N number of filter screen and to the letter Number output unit sends the second enabling signal；

   The signal output unit, for after second enabling signal is received, output to reset completion indication signal.

5. 5. according to the device described in claim any one of 1-4, it is characterised in that described device also includes motor control unit, The motor control instruction sent for receiving the processing unit, and the VMC is controlled according to the motor control instruction Motor state.

6. 6. device according to claim 5, it is characterised in that described device also includes function setup unit and control manually Unit；

   The function setup unit, for setting the manual control function of the manual control unit；

   The manual control unit, sent for receiving the manually operated request of user, and by the manually operated request to institute State processing unit.

7. 7. device according to claim 5, it is characterised in that described device also includes function setup unit and remote control Unit；

   The function setup unit, for setting the remote control function of the remote control unit；

   The remote control unit, sent for receiving remote control notification, and by the remote control notification to the processing Unit.

8. 8. device according to claim 5, it is characterised in that described device also includes function setup unit and sensor certainly Dynamic control unit；

   The function setup unit, for setting the sensor automatic control function of the sensor automatic control unit；

   The sensor automatic control unit, request is automatically controlled for generating sensor, and the sensor is automatically controlled Request is sent to the processing unit.

9. A kind of 9. VMC, it is characterised in that

   Including the VMC control device as described in claim any one of 1-8.

10. A kind of 10. VMC control method, it is characterised in that

    Determine the concentration scale of filtering object；

    The limit work of n-th of filter screen in N number of filter screen according to included by the filtering object concentration scale determines VMC Make the time；

    The effective time of n-th of filter screen in N number of filter screen is obtained, when having for n-th of filter screen in N number of filter screen The effect working time is when reaching the maximal work time, then outputting alarm signal, and n-th of filter screen in N number of filter screen has The effect working time is that n-th of filter screen in N number of filter screen is installed to after the VMC at the motor of the VMC In the time of operating condition, the alarm signal is used to indicate that the effective time of n-th of filter screen in N number of filter screen reaches To the maximal work time.

11. 11. according to the method for claim 10, it is characterised in that

    Methods described also includes：Determine the filter screen type of n-th of filter screen in N number of filter screen, n-th in N number of filter screen The filter screen type of individual filter screen is used to indicate whether n-th of filter screen in N number of filter screen be capable of washing；

    The outputting alarm signal includes：When n-th of filter screen in N number of filter screen is capable of washing, output filter gauze cleaning instruction Signal, when n-th of filter screen in N number of filter screen be not capable of washing, export screen replacing indication signal.

12. 12. according to the method for claim 10, it is characterised in that

    The state of the motor of the VMC is detected, the state of the motor of the VMC includes operating condition or stopping State；

    The time progress timing of operating condition is in the motor of the VMC, to obtain n-th in N number of filter screen The effective time of filter screen.

13. 13. according to the method for claim 12, it is characterised in that methods described also includes：

    The reset operational order of user is obtained, the effective time of n-th of filter screen in N number of filter screen is reset, and it is defeated Go out to reset and complete indication signal.