CN115031270A - Control method and device of central range hood system and central range hood system - Google Patents

Control method and device of central range hood system and central range hood system Download PDF

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Publication number
CN115031270A
CN115031270A CN202210670189.XA CN202210670189A CN115031270A CN 115031270 A CN115031270 A CN 115031270A CN 202210670189 A CN202210670189 A CN 202210670189A CN 115031270 A CN115031270 A CN 115031270A
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China
Prior art keywords
filter screen
state
input current
host
current value
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CN202210670189.XA
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Chinese (zh)
Inventor
任富佳
张建平
陈晓伟
李明
杜溢斐
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Hangzhou Robam Appliances Co Ltd
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Hangzhou Robam Appliances Co Ltd
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Priority to CN202210670189.XA priority Critical patent/CN115031270A/en
Publication of CN115031270A publication Critical patent/CN115031270A/en
Pending legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C15/00—Details
    • F24C15/20—Removing cooking fumes
    • F24C15/2021—Arrangement or mounting of control or safety systems
    • 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)

Abstract

The invention provides a control method and device of a central range hood system and the central range hood system. The central range hood system comprises a host machine and a plurality of indoor range hoods, and when the indoor range hoods do not work, the input current of a centrifugal fan of the host machine is detected; determining the use state of a filter screen of the host machine based on the input current and a preset theoretical current value; the using state of the filter screen comprises a state to be adjusted and a state to be replaced; and sending the using state of the filter screen to terminal equipment of a maintenance worker, so that the maintenance worker can replace the filter screen or adjust the position of the filter screen. The use state of the filter screen of the host can be determined according to the input current of the centrifugal fan of the host and the preset theoretical current value, and the use state of the filter screen is sent to the terminal equipment of a maintenance worker, so that the maintenance worker can replace the filter screen or adjust the position of the filter screen. Maintenance personnel can be reminded in time to maintain and protect the host.

Description

Control method and device of central range hood system and central range hood system
Technical Field
The invention relates to the technical field of central range hoods, in particular to a control method and a control device of a central range hood system and the central range hood system.
Background
At present, a central range hood system mostly adopts the design of a centrifugal fan and an integrated filter screen. The oil smoke gas enters the main machine through reducing under the action of the centrifugal fan, and then enters the inner space of the fan from the two sides of the fan.
After a host of the central range hood works for a long time, the left side and the right side of the filter screen are more easily blocked by particles in oil fume gas to cause overlarge air inlet resistance than the middle part, and when the filter screen is maintained and replaced, the middle part of the filter screen is often not fully utilized to cause unnecessary waste. In addition, the maintenance of the main machine filter screen of the central range hood system generally adopts a regular maintenance mode, which is difficult to timely and quickly maintain the main machine, and probably shortens the service life of the main machine due to untimely maintenance or causes material waste due to too early maintenance.
Disclosure of Invention
In view of the above, the present invention provides a method and an apparatus for controlling a central range hood system, and a host computer is maintained and protected in time.
In a first aspect, an embodiment of the present invention provides a method for controlling a central extractor hood system, where the central extractor hood system includes a host and a plurality of indoor extractor hoods, and the method includes: when the plurality of indoor range hoods do not work, detecting the input current of a centrifugal fan of the host; determining the use state of a filter screen of the host machine based on the input current and a preset theoretical current value; the using state of the filter screen comprises a state to be adjusted and a state to be replaced; and sending the using state of the filter screen to terminal equipment of a maintenance worker, so that the maintenance worker can replace the filter screen or adjust the position of the filter screen.
In a preferred embodiment of the present invention, the step of detecting the input current of the centrifugal fan of the main machine includes: the input current of the centrifugal fan of the main machine is detected based on a preset time interval.
In a preferred embodiment of the present application, the step of detecting the input current of the centrifugal fan of the host when none of the plurality of indoor range hoods is in operation includes: when the plurality of indoor range hoods do not work, the air supplementing valve of the main machine is opened; controlling the host to operate at a specified frequency so as to enable external wind to enter the host through the air supplementing valve; and detecting the input current of a centrifugal fan of the main machine.
In a preferred embodiment of the present invention, the theoretical current value includes: a first theoretical current value and a second theoretical current value, wherein the first theoretical current value is greater than the second theoretical current value; the step of determining the use state of the filter screen of the host machine based on the input current and the preset theoretical current value comprises the following steps: if the input current is less than or equal to the first theoretical current value and the input current is greater than the second theoretical current value, determining the using state of the filter screen as a state to be adjusted; and if the input current is less than or equal to the second theoretical current value, determining the using state of the filter screen as a state to be replaced.
In a preferred embodiment of the present application, the filter screen further includes: a normal state; the step of determining the use state of the filter screen of the host machine based on the input current and the preset theoretical current value further comprises: and if the input current is larger than the first theoretical current value, determining that the using state of the filter screen is a normal state.
In a preferred embodiment of the present application, the step of sending the usage status of the filter screen to the terminal device of the maintenance worker includes: the service condition of the filter screen is sent to the cloud platform, so that the service condition of the filter screen is sent to the terminal equipment of maintenance personnel by the cloud platform.
In a preferred embodiment of the present application, the host includes a plurality of filter screens, and the step of adjusting the positions of the filter screens includes: adjusting the filter screens arranged at the middle parts of the plurality of filter screens to the two side parts of the plurality of filter screens; the filter screens arranged at both sides of the plurality of filter screens are adjusted to be arranged at the middle parts of the plurality of filter screens.
In a preferred embodiment of the present application, the method further includes: acquiring a count value of the filter screen; if the input current is less than or equal to the first theoretical current value and the input current is greater than the second theoretical current value, the step of determining the using state of the filter screen as the state to be adjusted comprises the following steps: and if the input current is less than or equal to the first theoretical current value, the input current is greater than the second theoretical current value, and the counting value is the first value, determining that the using state of the filter screen is the state to be adjusted, and adjusting the counting value to the second value.
In a preferred embodiment of the present application, the method further includes: after replacing the filter screen, the count value is adjusted to a first value.
In a second aspect, an embodiment of the present invention further provides a control device for a central extractor hood system, where the central extractor hood system includes a host and a plurality of indoor extractor hoods, and the device includes: the input current detection module is used for detecting the input current of the centrifugal fan of the host when the indoor range hoods do not work; the using state determining module is used for determining the using state of a filter screen of the host machine based on the input current and a preset theoretical current value; the using state of the filter screen comprises a state to be adjusted and a state to be replaced; and the using state sending module is used for sending the using state of the filter screen to terminal equipment of a maintenance worker so that the maintenance worker can replace the filter screen or adjust the position of the filter screen.
In a third aspect, an embodiment of the present invention further provides a central extractor hood system, where the central extractor hood system includes: the indoor range hood comprises a main machine and a plurality of indoor range hoods; the host computer includes: the device comprises a filter screen, a centrifugal fan, a control module, a current detection element and a signal emission module; the current detection element is used for detecting the input current of the centrifugal fan of the host when the indoor range hoods do not work; the control module is used for determining the use state of a filter screen of the host machine based on the input current and a preset theoretical current value; the using states of the filter screen comprise a state to be adjusted and a state to be replaced; and the signal transmitting module is used for transmitting the using state of the filter screen to terminal equipment of a maintenance worker so that the maintenance worker can replace the filter screen or adjust the position of the filter screen.
In a preferred embodiment of the present application, the host further includes: air supplement valve and counting element; and the counting element is used for storing the counting value of the filter screen.
The embodiment of the invention has the following beneficial effects:
the control method and device for the central range hood system and the central range hood system provided by the embodiment of the invention can determine the use state of the filter screen of the host according to the input current of the centrifugal fan of the host and the preset theoretical current value, and send the use state of the filter screen to the terminal equipment of a maintenance worker, so that the maintenance worker can replace the filter screen or adjust the position of the filter screen. Maintenance personnel can be reminded in time to maintain and protect the host.
Additional features and advantages of the disclosure will be set forth in the description which follows, or in part may be learned by the practice of the above-described techniques of the disclosure, or may be learned by practice of the disclosure.
In order to make the aforementioned objects, features and advantages of the present disclosure more comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic view of a central extractor hood system according to an embodiment of the present invention;
fig. 2 is a schematic diagram of a host of a central extractor hood system according to an embodiment of the present invention;
fig. 3 is a flowchart of a control method of a central range hood system according to an embodiment of the present invention;
fig. 4 is a flowchart of another control method of a central extractor hood system according to an embodiment of the present invention;
fig. 5 is a schematic view of a filter screen of a host according to an embodiment of the present invention;
fig. 6 is a schematic diagram of a current-based control method of a central extractor hood system according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of a central extractor hood system according to an embodiment of the present invention;
fig. 8 is a schematic structural diagram of a host according to an embodiment of the present invention;
fig. 9 is a schematic structural diagram of a control device of a central extractor hood system according to an embodiment of the present invention;
fig. 10 is a schematic structural diagram of an electronic device according to an embodiment of the present invention.
An icon:
1-a host; 2-indoor smoke exhaust ventilator; 3-reducing; 4-filtering with a filter screen; 41-a first screen; 42-a second screen; 43-a third screen; 44-a fourth screen; 5-a filter screen guide groove; 6-centrifugal fan; 7-a fan box body; 8-hood box body; 9-a control module; 91-a signal transmitting module; 92-a current sensing element; 93-a counting element; 10-air outlet; 11-a wind pressure detecting element; 12-air supplement valve; 13-a drive motor; 901-input current detection module; 902-a usage state determination module; 903-use state sending module; 100-a memory; 101-a processor; 102-a bus; 103-communication interface.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
At present, a central range hood system mostly adopts the design of a centrifugal fan and an integrated filter screen. Referring to the schematic diagram of a central range hood system shown in fig. 1 and the schematic diagram of a main machine of the central range hood system shown in fig. 2, oil smoke gas enters the main machine through reducing under the action of a centrifugal fan, and then enters the inner space of the fan from two sides of the fan.
After a host of the central range hood works for a long time, the left side and the right side of the filter screen are more easily blocked by particles in oil fume gas to cause overlarge air inlet resistance than the middle part, and when the filter screen is maintained and replaced, the middle part of the filter screen is often not fully utilized to cause unnecessary waste. In addition, the maintenance of the main machine filter screen of the central range hood system generally adopts a regular maintenance mode, which is difficult to timely and quickly maintain the main machine, and probably shortens the service life of the main machine due to untimely maintenance or causes material waste due to too early maintenance. Therefore, the existing central range hood system has low utilization rate of the integrated filter screen and wastes materials; the regular maintenance mode has the problem of untimely or early maintenance.
Based on the control method and the control device for the central range hood system and the central range hood system, provided by the embodiment of the invention, the central range hood host machine capable of improving the utilization rate of the filter screen is provided, and the host machine can be timely maintained and protected by detecting the input current of the centrifugal fan of the host machine.
In order to facilitate understanding of the present embodiment, a detailed description is first provided for a control method of a central range hood system disclosed in the embodiment of the present invention.
The first embodiment is as follows:
the embodiment of the invention provides a control method of a central range hood system, wherein the central range hood system comprises a host and a plurality of indoor range hoods, the host is generally installed on the roof, and the indoor range hoods are installed in the house of a user.
Based on the above description, referring to the flowchart of a control method of the central range hood system shown in fig. 3, the control method of the central range hood system includes the following steps:
and step S302, when the indoor range hoods do not work, detecting the input current of the centrifugal fan of the host.
The central range hood is a device which carries out communication networking on the range hoods on the same common flue and systematically coordinates and controls the actual air exhaust amount of each range hood. The central range hood in this embodiment may employ a centrifugal fan, which is a fan in which, during operation, airflow enters a blade space from the axial direction of the fan, and then rotates with the impeller under the driving of the impeller, and on the other hand, the energy is increased under the action of inertia, and the fan leaves the impeller in the radial direction and works by the generated centrifugal force.
In the embodiment, when the indoor range hoods do not work, the air supplementing valve of the host can be opened, and the input current of the centrifugal fan of the host is detected. Generally, the more dust on the filter screen, the higher the input current of the centrifugal fan, and the more replacement is needed.
Step S304, determining the use state of the filter screen of the host machine based on the input current and a preset theoretical current value; the using state of the filter screen comprises a state to be adjusted and a state to be replaced.
Because the centrifugal fan is adopted, dust is easy to accumulate on the left side and the right side of the main machine filter screen, and the dust is not easy to accumulate in the central part of the main machine filter screen. Therefore, the host computer of this embodiment can adopt the form of a plurality of filter screens to can mutual adjustment position, just so can reduce the frequency and the number of times of changing the filter screen, thereby improve the utilization ratio of filter screen.
The more the dust on the filter screen, the higher the input current of the centrifugal fan, and the more the centrifugal fan needs to be replaced. And comparing the input current with a preset theoretical current value, and if the input current is lower, determining that the host does not need to replace the filter screen.
If the input current is higher, the dust of the filter screens on the left side and the right side of the main machine can be considered to be much, the dust of the filter screen on the central part is not much, the waste of materials is avoided in order to improve the utilization rate of the filter screens, the positions of the filter screens on the left side and the right side and the filter screen on the central part can be exchanged at the moment, and the using state of the filter screens can be confirmed to be the state to be adjusted.
If the input current is very high, the dust of the filter screens on the left side, the right side and the central part of the main machine can be considered to be much, all the filter screens need to be replaced at the moment, and the using state of the filter screens can be confirmed to be the state to be replaced.
And S306, sending the using state of the filter screen to terminal equipment of a maintenance worker, so that the maintenance worker can replace the filter screen or adjust the position of the filter screen.
The central range hood system in this embodiment can be in communication connection with a terminal device of a maintenance worker, wherein the terminal device can be a mobile phone, a computer, a tablet computer and other devices with communication and interaction functions. Therefore, after the user state of the filter screen is obtained, the user state of the filter screen can be sent to the terminal equipment of the maintenance personnel, and the maintenance personnel can replace the filter screen or adjust the position of the filter screen in time according to the user state of the filter screen displayed by the terminal equipment.
The control method of the central range hood system provided by the embodiment of the invention can determine the use state of the filter screen of the host according to the input current of the centrifugal fan of the host and the preset theoretical current value, and send the use state of the filter screen to the terminal equipment of a maintenance worker, so that the maintenance worker can replace the filter screen or adjust the position of the filter screen. Maintenance personnel can be reminded in time to maintain and protect the host.
Example two:
the present embodiment provides another control method for a central extractor hood system, which is implemented on the basis of the above embodiments, and referring to a flowchart of another control method for a central extractor hood system shown in fig. 4, the control method for a central extractor hood system includes the following steps:
and S402, when the indoor range hoods do not work, detecting the input current of the centrifugal fan of the host machine based on a preset time interval.
Specifically, when a plurality of indoor range hoods do not work, an air supplement valve of the main machine is opened; controlling the host to operate at a specified frequency so as to enable external wind to enter the host through the air supplementing valve; and detecting the input current of a centrifugal fan of the host.
When the central range hood is in a non-working state (all indoor range hoods do not work), the control module can open the air supplement valve of the host, the host of the central range hood is controlled to run under a specified frequency, at the moment, air outside the host can enter the host from the air supplement valve, the current detection element of the host can detect the input current of the centrifugal fan of the host, and the condition of filter screen blockage is judged through the input current of the centrifugal fan.
In order to prevent the waste of resources due to excessive detection times, it may be set that the input current is detected only once within a preset time interval, and generally, the input current is detected once a day.
Step S404, determining the use state of a filter screen of the host machine based on the input current and a preset theoretical current value; the using state of the filter screen comprises a state to be adjusted and a state to be replaced.
Specifically, the theoretical current values include: a first theoretical current value and a second theoretical current value, wherein the first theoretical current value is greater than the second theoretical current value; if the input current is less than or equal to the first theoretical current value and the input current is greater than the second theoretical current value, determining the use state of the filter screen as a state to be adjusted; and if the input current is less than or equal to the second theoretical current value, determining the using state of the filter screen as the state to be replaced.
The control module can set a theoretical first theoretical current value I1 and a theoretical second current value I2 of the centrifugal fan under a specific frequency, wherein I1 is the theoretical input current of the centrifugal fan when the filter screen is required to be maintained, and I2 is the theoretical input current of the centrifugal fan when the filter screen is required to be integrally maintained and replaced (a new filter screen is replaced). Wherein, I1 and I2 can be calculated by tests and simulations, and I2 is less than I1.
When the central range hood is in a non-working state, the control module controls the host to enter a filter screen state detection mode, the current detection element can send the detected input current value I3 of the centrifugal fan to the control module, and the control module compares and analyzes the detected input current value I3 with theoretical input current values I1 and I2 set in the control module.
In addition, the service condition of filter screen still includes: a normal state; and if the input current is larger than the first theoretical current value, determining that the using state of the filter screen is a normal state.
When I3 is greater than I1, the control module can judge that the state of the filter screen is good and determine that the using state of the filter screen is a normal state.
In addition, the embodiment can also obtain the count value of the filter screen; and if the input current is less than or equal to the first theoretical current value, the input current is greater than the second theoretical current value, and the counting value is the first value, determining that the using state of the filter screen is the state to be adjusted, and adjusting the counting value to the second value.
When I2 is not less than I3 is not less than I1, the control module can determine the using state of the filter screen as the state to be adjusted. Wherein, the control module judges that the value of the counting element (the counting element is used for storing the counting value of the filter screen) is 0 (namely a first value) or 1 (namely a second value). If the counting value is the first value, the filter screen of the host machine is not adjusted before, and the position of the filter screen can be adjusted; if the counting value is the first value, the filter screen of the host machine is adjusted, the position adjusting effect of the filter screen is poor, and the dust of the filter screen does not reach the stage needing to be replaced, so that no operation can be executed until the input current is larger than the second theoretical current value.
When I3 is less than or equal to I2, the control module can determine the using state of the filter screen as the state to be replaced. At this moment, the filter screen needs to be replaced in time due to excessive dust. In addition, after the filter screen is replaced, the count value may be adjusted to be the first value, which indicates that the filter screen after replacement does not perform the step of adjusting the position of the filter screen, that is, the count value is cleared to 0.
And S406, sending the using state of the filter screen to terminal equipment of a maintenance worker, so that the maintenance worker can replace the filter screen or adjust the position of the filter screen.
Specifically, the using state of the filter screen can be sent to the cloud platform, so that the cloud platform sends the using state of the filter screen to the terminal equipment of the maintenance personnel. In the embodiment, the central range hood system and the terminal equipment of maintenance personnel can be connected through the cloud platform.
Specifically, the position of the screen may be adjusted by: adjusting the filter screens arranged at the middle parts of the plurality of filter screens to the two side parts of the plurality of filter screens; the filter screens arranged at both sides of the plurality of filter screens are adjusted to be arranged at the middle parts of the plurality of filter screens.
Referring to the schematic diagram of the filter screen of the host shown in fig. 5, 4 filter screens can be disposed below the centrifugal fan 6, which are: a first screen 41, a second screen 42, a third screen 43, and a fourth screen 44. The second filter screen 42 and the third filter screen 43 are filter screens arranged at two sides of the plurality of filter screens, the first filter screen 41 and the fourth filter screen 44 are filter screens arranged at the middle parts of the plurality of filter screens, and the positions of the first filter screen 41 and the second filter screen 42 can be exchanged, and the positions of the third filter screen 43 and the fourth filter screen 44 can be exchanged during adjustment; or the first screen 41 may be exchanged with the third screen 43 and the second screen 42 may be exchanged with the fourth screen 44.
The overall process provided by the embodiment of the invention can be seen in a schematic diagram of a current-based control method of a central range hood system shown in fig. 6, when the central range hood is in a non-working state, a control module controls a host to enter a filter screen state detection mode, a current detection element sends a detected input current value I3 of a centrifugal fan to the control module, and the control module compares and analyzes the detected input current value I3 with a theoretical input current value I1 set in the control module.
When I3 is larger than I1, the control module judges that the state of the filter screen is good; when the I3 is not more than I1, the control module judges that the count value is 0 or 1, when the count value is 0, the control module controls the signal transmitting module to send a signal to the central range hood cloud platform, filter screen maintenance information is sent to maintenance personnel through the cloud platform, the count value is adjusted to 1 after the maintenance personnel exchange the positions of the filter screens, and the host can normally operate; if the control module judges that the value of the counting element is 1, the control module does not perform any processing.
When I3 is monitored to be not less than I2 in the filter screen state detection mode, the control module controls the signal transmitting module to send a signal to the central range hood cloud platform, filter screen maintenance and replacement information is sent to maintenance personnel through the cloud platform, and the count value is set to 0 after the maintenance personnel replace a brand new filter screen.
The method provided by the embodiment of the invention can divide the integrated filter screen into 4 small filter screens for splicing and positioning, can maintain the host machine in time, and ensures the full utilization of the filter screens by exchanging the positions of the filter screens at the two sides and the middle filter screen; the maintenance personnel can be reminded to maintain the host in time, and the problem that the service life of the host is shortened due to untimely maintenance or material waste is caused by too early maintenance is avoided. In the mode, the utilization rate of the filter screen can be improved, and the service life of the host is prolonged.
Example three:
an embodiment of the present invention provides a central extractor hood system, which is shown in fig. 7, and the central extractor hood system includes: the range hood comprises a main machine 1 and a plurality of indoor range hoods 2.
Referring to fig. 8, a schematic structural diagram of a host 1 is shown, where the host 1 includes: the device comprises a filter screen 4, a centrifugal fan 6, a control module 9, a current detection element 92 and a signal transmitting module 91; the current detection element is used for detecting the input current of the centrifugal fan of the host when the indoor range hoods do not work; the control module is used for determining the use state of a filter screen of the host machine based on the input current and a preset theoretical current value; the using state of the filter screen comprises a state to be adjusted and a state to be replaced; and the signal transmitting module is used for transmitting the using state of the filter screen to the terminal equipment of a maintenance worker so as to enable the maintenance worker to replace the filter screen or adjust the position of the filter screen.
Further, the host 1 further includes: an air supply valve 12 and a counting element 93; and the counting element is used for storing the counting value of the filter screen.
Wherein, above-mentioned host computer 1 still includes: the air-conditioning unit comprises a reducer 3, a filter screen guide groove 5, a fan box body 7, an air cap box body 8, an air outlet 10, a wind pressure detection element 11 and a driving motor 13.
As shown in fig. 5, in the filter screen 4 of the present embodiment, the one-piece filter screen can be designed and divided into 4 filter screens with the same size.
The filter screen guide groove 5 is arranged at the top and the bottom of the fan box body 7 oppositely and used for fixing the filter screen 4.
The control module 9 includes a signal transmitting module 91, a current detecting element 92, and a counting element 93. The signal transmitting module 91 can send filter screen maintenance information to a cloud platform of the central range hood; the current detection element 92 is used for detecting the input current of the centrifugal fan 6; the counting element 93 records the maintenance frequency of the filter screen, and can set the value 0 (the set value after the filter screen is replaced by a brand new filter screen, namely the first value) and the value 1 (the set value after the positions of the filter screens at the two sides and the middle filter screen are exchanged, namely the second value), and the maintenance personnel sets the values after maintenance and replacement.
The wind pressure detecting element 11 is arranged at the front end of the filter screen and used for detecting the wind pressure at the front end of the filter screen, and the wind pressure detecting element 11 is electrically connected with the control module 9.
The air supplement valve 12 can be used for detecting the state of the filter screen when the central range hood is in a non-working state; the driving motor 13 drives the air supplementing valve 12 to open and close, and the driving motor is electrically connected with the control module 9.
It can be clearly understood by those skilled in the art that, for convenience and brevity of description, the specific working process of the central range hood system described above may refer to the corresponding process in the embodiment of the control method of the central range hood system, and will not be described herein again.
Example four:
corresponding to the above method embodiment, an embodiment of the present invention provides a control device of a central extractor hood system, where the central extractor hood system includes a host and a plurality of indoor extractor hoods, and referring to a schematic structural diagram of the control device of the central extractor hood system shown in fig. 9, the control device of the central extractor hood system includes:
an input current detection module 901, configured to detect an input current of a centrifugal fan of the host when the plurality of indoor range hoods are not in operation;
a using state determining module 902, configured to determine a using state of a filter screen of the host based on the input current and a preset theoretical current value; the using state of the filter screen comprises a state to be adjusted and a state to be replaced;
and a using state sending module 903, configured to send the using state of the filter screen to a terminal device of a maintenance worker, so that the maintenance worker replaces the filter screen or adjusts the position of the filter screen.
The control device of the central range hood system provided by the embodiment of the invention can determine the use state of the filter screen of the host according to the input current of the centrifugal fan of the host and the preset theoretical current value, and send the use state of the filter screen to the terminal equipment of a maintenance worker, so that the maintenance worker can replace the filter screen or adjust the position of the filter screen. Maintenance personnel can be reminded in time to maintain and protect the host.
The input current detection module 901 is configured to detect an input current of the centrifugal fan of the host based on a preset time interval.
The input current detection module 901 is configured to open an air supplement valve of the host when none of the plurality of indoor range hoods is in operation; controlling the host to operate at a specified frequency so as to enable external wind to enter the host through the air supplementing valve; and detecting the input current of a centrifugal fan of the host.
The above theoretical current values include: a first theoretical current value and a second theoretical current value, wherein the first theoretical current value is greater than the second theoretical current value; the above-mentioned using state determining module 902 is configured to determine that the using state of the filter screen is a state to be adjusted if the input current is less than or equal to the first theoretical current value and the input current is greater than the second theoretical current value; and if the input current is less than or equal to the second theoretical current value, determining the using state of the filter screen as the state to be replaced.
The using state of the filter screen further comprises: a normal state; the above-mentioned using state determining module 902 is further configured to determine that the using state of the filter screen is a normal state if the input current is greater than the first theoretical current value.
The service status sending module 903 is configured to send the service status of the filter screen to the cloud platform, so that the cloud platform sends the service status of the filter screen to the terminal device of the maintenance worker.
The host includes a plurality of filters, and the usage state transmitting module 903 adjusts the filters disposed at the middle portions of the plurality of filters to the two side portions of the plurality of filters; the filter screens arranged at both sides of the plurality of filter screens are adjusted to be arranged at the middle parts of the plurality of filter screens.
The device also comprises a counting value acquisition module used for acquiring the counting value of the filter screen; the using state sending module 903 is configured to determine that the using state of the filter screen is a state to be adjusted and adjust the count value to a second value if the input current is less than or equal to the first theoretical current value, the input current is greater than the second theoretical current value, and the count value is the first value.
The device also comprises a counting value adjusting module which is used for adjusting the counting value to be a first value after the filter screen is replaced.
It can be clearly understood by those skilled in the art that, for convenience and brevity of description, the specific working process of the control device of the central range hood system described above may refer to the corresponding process in the embodiment of the control method of the central range hood system, and will not be described herein again.
Example five:
the embodiment of the invention also provides electronic equipment for operating the control method of the central range hood system; referring to fig. 10, the electronic device includes a memory 100 and a processor 101, where the memory 100 is used to store one or more computer instructions, and the one or more computer instructions are executed by the processor 101 to implement the control method of the central extractor hood system.
Further, the electronic device shown in fig. 10 further includes a bus 102 and a communication interface 103, and the processor 101, the communication interface 103, and the memory 100 are connected through the bus 102.
The Memory 100 may include a high-speed Random Access Memory (RAM) and may further include a non-volatile Memory (non-volatile Memory), such as at least one disk Memory. The communication connection between the network element of the system and at least one other network element is realized through at least one communication interface 103 (which may be wired or wireless), and the internet, a wide area network, a local network, a metropolitan area network, and the like can be used. The bus 102 may be an ISA bus, PCI bus, EISA bus, or the like. The bus may be divided into an address bus, a data bus, a control bus, etc. For ease of illustration, only one double-headed arrow is shown in FIG. 10, but this does not indicate only one bus or one type of bus.
The processor 101 may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method may be performed by integrated logic circuits of hardware or instructions in the form of software in the processor 101. The Processor 101 may be a general-purpose Processor, and includes a Central Processing Unit (CPU), a Network Processor (NP), and the like; the Integrated Circuit may also be a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic device, or discrete hardware components. The various methods, steps, and logic blocks disclosed in the embodiments of the present invention may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in connection with the embodiments of the present invention may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software module may be located in ram, flash memory, rom, prom, or eprom, registers, etc. storage media as is well known in the art. The storage medium is located in the memory 100, and the processor 101 reads the information in the memory 100, and completes the steps of the method of the foregoing embodiment in combination with the hardware thereof.
The embodiment of the present invention further provides a computer-readable storage medium, where the computer-readable storage medium stores computer-executable instructions, and when the computer-executable instructions are called and executed by a processor, the computer-executable instructions cause the processor to implement the control method of the central extractor hood system, and specific implementation may refer to method embodiments, and is not described herein again.
The control method and device for the central range hood system and the computer program product for the central range hood system provided by the embodiments of the present invention include a computer readable storage medium storing program codes, instructions included in the program codes may be used to execute the method in the foregoing method embodiments, and specific implementation may refer to the method embodiments, and will not be described herein again.
It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the system and/or the apparatus described above may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In addition, in the description of the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Finally, it should be noted that: the above-mentioned embodiments are only specific embodiments of the present invention, which are used for illustrating the technical solutions of the present invention and not for limiting the same, and the protection scope of the present invention is not limited thereto, although the present invention is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: those skilled in the art can still make modifications or changes to the embodiments described in the foregoing embodiments, or make equivalent substitutions for some features, within the scope of the disclosure; such modifications, changes or substitutions do not depart from the spirit and scope of the embodiments of the present invention, and they should be construed as being included therein. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (12)

1. A control method of a central range hood system is characterized in that the central range hood system comprises a host and a plurality of indoor range hoods, and the method comprises the following steps:
when the indoor range hoods do not work, detecting the input current of the centrifugal fan of the host;
determining the use state of a filter screen of the host machine based on the input current and a preset theoretical current value; the using state of the filter screen comprises a state to be adjusted and a state to be replaced;
and sending the service state of the filter screen to terminal equipment of a maintenance worker, so that the maintenance worker replaces the filter screen or adjusts the position of the filter screen.
2. The method of claim 1, wherein the step of sensing an input current to a centrifugal fan of the host machine comprises:
and detecting the input current of a centrifugal fan of the main machine based on a preset time interval.
3. The method of claim 1, wherein the step of detecting the input current of the centrifugal fan of the main machine when none of the plurality of indoor range hoods is in operation comprises:
when the indoor range hoods do not work, the air supplement valve of the main machine is opened;
controlling the host to operate at a specified frequency so that outside air enters the host through the air supplementing valve;
and detecting the input current of a centrifugal fan of the main machine.
4. The method of claim 1, wherein the theoretical current value comprises: a first theoretical current value and a second theoretical current value, wherein the first theoretical current value is greater than the second theoretical current value; the step of confirming the service condition of the filter screen of the host computer based on the input current and the preset theoretical current value comprises the following steps:
if the input current is less than or equal to the first theoretical current value and the input current is greater than the second theoretical current value, determining that the using state of the filter screen is a state to be adjusted;
and if the input current is less than or equal to the second theoretical current value, determining the use state of the filter screen as a state to be replaced.
5. The method of claim 4, wherein the use state of the screen further comprises: a normal state; the step of confirming the service condition of the filter screen of the host computer based on the input current and the preset theoretical current value further comprises:
and if the input current is larger than the first theoretical current value, determining that the using state of the filter screen is a normal state.
6. The method according to claim 1, wherein the step of sending the usage status of the filter screen to a terminal device of a service person comprises:
and sending the using state of the filter screen to a cloud platform so that the cloud platform sends the using state of the filter screen to terminal equipment of maintenance personnel.
7. The method of claim 1, wherein said host machine includes a plurality of said screens, and wherein the step of adjusting the position of said screens comprises:
adjusting the filter screens arranged at the middle parts of the filter screens to the two side parts of the filter screens;
the filter screens arranged at the two sides of the plurality of filter screens are adjusted to be arranged at the middle parts of the plurality of filter screens.
8. The method of claim 4, further comprising: obtaining a count value of the filter screen; if the input current is less than or equal to the first theoretical current value and the input current is greater than the second theoretical current value, determining that the using state of the filter screen is a state to be adjusted, comprising the following steps of:
and if the input current is less than or equal to the first theoretical current value, the input current is greater than the second theoretical current value, and the counting value is a first value, determining that the using state of the filter screen is a state to be adjusted, and adjusting the counting value to a second value.
9. The method of claim 8, further comprising:
adjusting the count value to the first value after replacing the screen.
10. A control device of a central range hood system is characterized in that the central range hood system comprises a host computer and a plurality of indoor range hoods, and the device comprises:
the input current detection module is used for detecting the input current of the centrifugal fan of the host when the indoor range hoods do not work;
the using state determining module is used for determining the using state of a filter screen of the host machine based on the input current and a preset theoretical current value; the using state of the filter screen comprises a state to be adjusted and a state to be replaced;
and the using state sending module is used for sending the using state of the filter screen to terminal equipment of a maintenance worker, so that the maintenance worker can replace the filter screen or adjust the position of the filter screen.
11. A central extractor hood system, comprising: the indoor range hood comprises a main machine and a plurality of indoor range hoods; the host includes: the device comprises a filter screen, a centrifugal fan, a control module, a current detection element and a signal transmitting module;
the current detection element is used for detecting the input current of the centrifugal fan of the host when the indoor range hoods do not work;
the control module is used for determining the use state of a filter screen of the host machine based on the input current and a preset theoretical current value; the using states of the filter screen comprise a state to be adjusted and a state to be replaced;
the signal emission module is used for sending the service condition of the filter screen to terminal equipment of maintenance personnel, so that the maintenance personnel replace the filter screen or adjust the position of the filter screen.
12. The central extractor hood system of claim 11, wherein the host computer further comprises: air supplement valve and counting element; the counting element is used for storing the counting value of the filter screen.
CN202210670189.XA 2022-06-14 2022-06-14 Control method and device of central range hood system and central range hood system Pending CN115031270A (en)

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CN202210670189.XA CN115031270A (en) 2022-06-14 2022-06-14 Control method and device of central range hood system and central range hood system

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Application Number Priority Date Filing Date Title
CN202210670189.XA CN115031270A (en) 2022-06-14 2022-06-14 Control method and device of central range hood system and central range hood system

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