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

Abstract

The present invention provides a control method, device and central range hood system for a central range hood system. The method comprises: when multiple indoor range hoods are not working, detecting the wind pressure at the front end of the filter of the host; determining the use status of the filter based on the wind pressure and a preset theoretical wind pressure value; the use status of the filter includes a normal state, a state to be adjusted and a state to be replaced; replacing the filter or adjusting the position of the filter based on the use status of the filter. The use status of the filter of the host can be determined based on the wind pressure at the front end of the filter of the host when the indoor range hoods are not working and a preset theoretical wind pressure value, and the filter can be replaced or adjusted based on the use status of the filter. The host can be repaired and protected in a timely manner to improve the user experience.

Description

Technical Field

[0001] The present invention relates to the technical field of central range hoods, and in particular to a control method and device for a central range hood system and a central range hood system. Background Art

[0002] Most central range hood systems on the market use a centrifugal fan combined with an integrated filter design. Under the action of the centrifugal fan, the oil fume gas enters the main unit through the variable diameter, and then enters the internal space of the fan from both sides of the fan.

[0003] After the main unit of the central range hood system has been working for a long time, the left and right sides of the filter are more likely to be clogged by particles in the oil smoke gas than the middle part, causing excessive air resistance. When the filter is maintained and replaced, the middle part of the filter is often not fully utilized, resulting in unnecessary waste. In addition, the main unit filter maintenance of the central range hood system generally adopts regular maintenance, which is difficult to maintain the main unit in a timely and rapid manner. It is likely that the service life of the main unit will be shortened due to untimely maintenance, or material waste will be caused due to premature maintenance. Summary of the invention

[0004] In view of this, an object of the present invention is to provide a control method and device of a central range hood system and a central range hood system, so as to timely perform maintenance and protection on the main unit and improve the user experience.

[0005] In a first aspect, an embodiment of the present invention provides a control method for a central range hood system, the central range hood system comprising a main unit and multiple indoor range hoods, the method comprising: when the multiple indoor range hoods are not working, detecting the wind pressure at the front end of the filter of the main unit; determining the use status of the filter based on the wind pressure and a preset theoretical wind pressure value; wherein the use status of the filter comprises a normal state, a state to be adjusted and a state to be replaced; replacing the filter or adjusting the position of the filter based on the use status of the filter.

[0006] In a preferred embodiment of the present application, the step of detecting the wind pressure in front of the filter of the host when multiple indoor range hoods are not working includes: opening the air supply valve of the host when multiple indoor range hoods are not working; controlling the host to operate at a specified frequency and detecting the wind pressure in front of the filter of the host.

[0007] In a preferred embodiment of the present application, the number of times the step of detecting the wind pressure at the front end of the filter of the host is performed within a preset time interval is less than a preset number threshold.

[0008] In a preferred embodiment of the present application, the above-mentioned theoretical wind pressure value includes: a first theoretical wind pressure value and a second theoretical wind pressure value, wherein the first theoretical wind pressure value is greater than the second theoretical wind pressure value; the step of determining the usage status of the filter based on the wind pressure and the pre-set theoretical wind pressure value includes: if the wind pressure is greater than the first theoretical wind pressure value, determining that the usage status of the filter is a normal status; if the wind pressure is less than or equal to the first theoretical wind pressure value, and the wind pressure is greater than the second theoretical wind pressure value, determining that the usage status of the filter is a state to be adjusted; if the wind pressure is less than or equal to the second theoretical wind pressure value, determining that the usage status of the filter is a state to be replaced.

[0009] In a preferred embodiment of the present application, the above-mentioned step of replacing the filter or adjusting the position of the filter based on the usage status of the filter includes: if the usage status of the filter is a to-be-adjusted state, adjusting the position of the filter; if the usage status of the filter is a to-be-replaced state, replacing the filter.

[0010] In a preferred embodiment of the present application, the above-mentioned main unit includes multiple filters, and the above-mentioned step of adjusting the position of the filters includes: adjusting the filter arranged in the middle part of the multiple filters to the two side parts of the multiple filters; adjusting the filter arranged in the side part of the multiple filters to the middle part of the multiple filters.

[0011] In a preferred embodiment of the present application, the above method further includes: if the usage status of the filter is normal, the step of replacing the filter or adjusting the filter is not performed.

[0012] In a preferred embodiment of the present application, the above method also includes: obtaining the count value of the filter; the above step of adjusting the position of the filter if the usage status of the filter is a state to be adjusted includes: if the usage status of the filter is a state to be adjusted, and the count value is a first value; adjust the position of the filter, and adjust the count value to a second value.

[0013] In a preferred embodiment of the present application, the above method further includes: after replacing the filter, adjusting the count value to the first value.

[0014] In a second aspect, an embodiment of the present invention further provides a control device for a central range hood system, the central range hood system comprising a main unit and multiple indoor range hoods, the device comprising: a filter wind pressure detection module, for detecting the wind pressure at the front end of the filter of the main unit when the multiple indoor range hoods are not working; a usage status determination module, for determining the usage status of the filter based on the wind pressure and a pre-set theoretical wind pressure value; wherein the usage status of the filter includes a normal status, a status to be adjusted and a status to be replaced; a filter replacement adjustment module, for replacing the filter or adjusting the position of the filter based on the usage status of the filter.

[0015] In a third aspect, an embodiment of the present invention further provides a central range hood system, comprising: a main unit and multiple indoor range hoods; the main unit comprises: a filter, a control module, a wind pressure detection element and a signal transmitting module; the wind pressure detection element is used to detect the wind pressure at the front end of the filter of the main unit when the multiple indoor range hoods are not working; the control module is used to determine the usage status of the filter based on the wind pressure and a preset theoretical wind pressure value; wherein the usage status of the filter includes a normal status, a status to be adjusted and a status to be replaced; the signal transmitting module is used to send the usage status of the filter to a user terminal of a maintenance personnel, so that the maintenance personnel can replace the filter or adjust the position of the filter based on the usage status of the filter.

[0016] In a preferred embodiment of the present application, the host further includes: an air supply valve and a counting element; the counting element is used to store the count value of the filter.

[0017] The embodiments of the present invention bring the following beneficial effects:

[0018] The control method, device and central range hood system provided by the embodiment of the present invention can determine the use status of the host filter according to the wind pressure at the front end of the host filter when all indoor range hoods are not working and the preset theoretical wind pressure value, and replace the filter or adjust the position of the filter based on the use status of the filter. The host can be repaired and protected in time, improving the user experience.

[0019] Other features and advantages of the present disclosure will be set forth in the following description, or some features and advantages may be inferred or unambiguously determined from the description, or may be learned by implementing the above-mentioned technology of the present disclosure.

[0020] In order to make the above-mentioned objectives, features and advantages of the present disclosure more obvious and easy to understand, preferred embodiments are specifically cited below and described in detail with reference to the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 A schematic diagram of a central range hood system provided by an embodiment of the present invention;

[0023] Figure 2 A schematic diagram of a host of a central range hood system provided by an embodiment of the present invention;

[0024] Figure 3 A flow chart of a control method of a central range hood system provided by an embodiment of the present invention;

[0025] Figure 4 A schematic structural diagram of a central range hood system provided by an embodiment of the present invention;

[0026] Figure 5 A schematic diagram of the structure of a host provided by an embodiment of the present invention;

[0027] Figure 6 A flow chart of another control method of a central range hood system provided by an embodiment of the present invention;

[0028] Figure 7 A schematic diagram of a filter screen of a host provided by an embodiment of the present invention;

[0029] Figure 8 A schematic diagram of a control method based on wind pressure for a central range hood system provided by an embodiment of the present invention;

[0030] Fig. 9 A schematic diagram of the structure of a control device for a central range hood system provided by an embodiment of the present invention;

[0031] Fig.10 A schematic diagram of the structure of an electronic device provided by an embodiment of the present invention.

[0032] icon:

[0033] 1-main unit; 2-indoor range hood; 3-variable diameter; 4-filter; 41-first filter; 42-second filter; 43-third filter; 44-fourth filter; 5-filter guide groove; 6-centrifugal fan; 7-fan housing; 8-hood housing; 9-control module; 91-signal transmitting module; 92-current detection element; 93-counting element; 10-air outlet; 11-wind pressure detection element; 12-air supply valve; 13-drive motor; 901-filter wind pressure detection module; 902-usage status determination module; 903-filter replacement and adjustment module; 100-memory; 101-processor; 102-bus; 103-communication interface. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] See also Figure 1 A schematic diagram of a central range hood system shown in FIG. Figure 2 The schematic diagram of a host of a central range hood system is shown in the figure. Most central range hood systems on the market use a centrifugal fan combined with an integrated filter design. After the host of a central range hood system of this design has been working for a long time, the left and right sides of the filter are more likely to be clogged by particles in the oil fume gas than the middle part, causing excessive air intake resistance. When the filter is maintained and replaced, the middle part of the filter is often not fully utilized, resulting in unnecessary waste. In addition, the maintenance of the host filter of the central range hood system generally adopts a regular maintenance method. This method makes it difficult to maintain the host in a timely and rapid manner. It is likely that the service life of the host will be shortened due to untimely maintenance, or that material waste will be caused due to premature maintenance.

[0036] Based on this, the embodiments of the present invention provide a control method, device and central range hood system for a central range hood system, which provides a central range hood host with improved filter utilization, and can timely repair and protect the host by detecting the wind pressure at the front end of the filter of the host.

[0037] To facilitate understanding of this embodiment, a control method for a central range hood system disclosed in an embodiment of the present invention is first introduced in detail.

[0038] Embodiment 1:

[0039] An embodiment of the present invention provides a control method for a central range hood system. The central range hood system includes a host and multiple indoor range hoods. The host is generally installed on the roof, and the indoor range hoods are installed in the user's house.

[0040] The central range hood is a device that connects the range hoods on the same common flue to communicate and network, and systematically coordinates and controls the actual exhaust volume of each range hood. The central range hood in this embodiment can adopt the design of a centrifugal fan. A centrifugal fan is a fan in which the airflow enters the blade space from the fan axis, and then, driven by the impeller, rotates with the impeller on the one hand, and increases energy under the action of inertia on the other hand, and leaves the impeller in the radial direction, and performs work by the centrifugal force generated.

[0041] Based on the above description, see Figure 3 A flow chart of a control method of a central range hood system is shown, and the control method of the central range hood system comprises the following steps:

[0042] Step S302, when the multiple indoor range hoods are not working, detecting the wind pressure at the front end of the filter of the host.

[0043] In this embodiment, when detecting the wind pressure at the front end of the filter of the host, the working condition of the indoor range hood needs to be considered. For the convenience of statistics, the wind pressure at the front end of the filter of the host can be detected when multiple indoor range hoods are not working. However, this does not mean that the wind pressure can only be detected when multiple indoor range hoods are not working. It just means that for convenience, it is appropriate to detect the wind pressure when multiple indoor range hoods are not working. In addition to the method of detecting the wind pressure when multiple indoor range hoods are not working, the wind pressure can also be detected when multiple indoor range hoods are working or a specified number of indoor range hoods are working.

[0044] When testing the wind pressure in front of the host's filter, the host's air supply valve can be opened, and outside air can enter the host through the air supply valve. Generally speaking, the more dust there is on the filter, the higher the wind pressure in front of the filter, and the more it needs to be replaced.

[0045] Step S304, determining the use status of the filter based on the wind pressure and a preset theoretical wind pressure value; wherein the use status of the filter includes a normal state, a state to be adjusted, and a state to be replaced.

[0046] The usage status of the filter can be divided into a normal state in which the filter is working normally, a to-be-adjusted state in which the filter position needs to be adjusted after being used for a period of time, and a to-be-replaced state in which the filter needs to be replaced after being used for a long time.

[0047] As mentioned above, the centrifugal fan design can be used in this embodiment. With the centrifugal fan design, dust is mainly concentrated on both sides of the filter, and there is less dust in the middle of the filter. Therefore, if the filter is not used for a long time, there may be a lot of dust on both sides of the filter, and there may be less dust in the middle of the filter.

[0048] Therefore, multiple filters can be set in this embodiment. When the position of the filter needs to be adjusted, the filters originally set on both sides can be interchanged with the filter originally set in the middle. This can reduce the frequency and number of times of replacing the filter, thereby improving the utilization rate of the filter.

[0049] Step S306: replace the filter or adjust the position of the filter based on the usage status of the filter.

[0050] If the filter is in the waiting-to-be-adjusted state, adjust the position of the filter; if the filter is in the waiting-to-be-replaced state, replace the filter.

[0051] In this embodiment, the use status of the filter can be sent to the terminal device of the maintenance personnel. After the maintenance personnel check the use status of the filter, they can go to the user's home in time to replace or adjust the position of the filter. The terminal device is generally a mobile phone, computer or other device that can communicate.

[0052] The control method of a central range hood system provided by the embodiment of the present invention can determine the use status of the host's filter according to the wind pressure at the front end of the host's filter when all indoor range hoods are not working and a preset theoretical wind pressure value, and replace the filter or adjust the position of the filter based on the use status of the filter. The host can be repaired and protected in a timely manner, improving the user experience.

[0053] Embodiment 2:

[0054] This embodiment provides a central range hood system. Figure 4 The structure diagram of a central range hood system shown in FIG. 1 includes a main unit 1 and a plurality of indoor range hoods 2. Figure 5 The schematic diagram of the structure of a host shown in the figure, the host 1 comprises: a filter 4, a control module 9, a wind pressure detection element 11 and a signal transmission module 91;

[0055] A wind pressure detection element is used to detect the wind pressure in front of the filter of the host when multiple indoor range hoods are not working; a control module is used to determine the usage status of the filter based on the wind pressure and a preset theoretical wind pressure value; wherein the usage status of the filter includes a normal state, a state to be adjusted and a state to be replaced; a signal transmission module is used to send the usage status of the filter to a user terminal of a maintenance personnel, so that the maintenance personnel can replace the filter or adjust the position of the filter based on the usage status of the filter.

[0056] In addition, the host 1 further comprises: an air supply valve 12 and a counting element 93; the counting element is used to store the count value of the filter.

[0057] like Figure 5 As shown, the host 1 further includes: a diameter reducer 3, a filter guide groove 5, a centrifugal fan 6, a fan housing 7, a hood housing 8, an air outlet 10, a current detection element 92 and a drive motor 13. The filter guide groove 5 is arranged opposite to the top and bottom of the fan housing 7 to fix the filter 4.

[0058] The control module 9 includes a signal transmission module 91, a current detection element 92, and a counting element 93. The signal transmission module 91 can send filter maintenance information to the cloud platform of the central range hood; the current detection element 92 is used to detect the input current of the centrifugal fan 6; the counting element 93 records the number of filter maintenance times, which can be set to 0 (the set value after the maintenance replaces the new filter, i.e. the first value) and 1 (the set value after the filter positions on both sides and the middle filter position are swapped, i.e. the second value), which is set by the maintenance personnel after the maintenance replacement.

[0059] The wind pressure detection element 11 is arranged at the front end of the filter screen, and is used to detect the wind pressure at the front end of the filter screen. The wind pressure detection element 11 is electrically connected to the control module 9 .

[0060] The air supply valve 12 can be used for filter status detection when the central range hood is not in operation; the drive motor 13 drives the air supply valve 12 to open and close, and the drive motor is electrically connected to the control module 9.

[0061] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working process of the device / system described above can refer to the corresponding process in the aforementioned embodiment and will not be repeated here.

[0062] Embodiment three:

[0063] This embodiment provides another control method for a central range hood system. This method is implemented on the basis of the above embodiment. Figure 6 The flowchart of another control method of a central range hood system is shown, and the control method of the central range hood system comprises the following steps:

[0064] Step S602, when multiple indoor range hoods are not working, open the air supply valve of the host; control the host to operate at a specified frequency, and detect the wind pressure in front of the filter of the host.

[0065] When the central range hood is not in working state (that is, all indoor range hoods are not working), the control module can open the main unit's air supply valve and control the main unit of the central range hood to operate at a specified frequency. At this time, the wind outside the main unit can enter the main unit from the air supply valve. The wind pressure detection element of the main unit can detect the wind pressure in front of the filter of the main unit and judge the filter blockage condition by the wind pressure in front of the filter.

[0066] In order to prevent excessive detection times from wasting resources, the number of times the step of detecting the wind pressure at the front end of the filter of the host is performed within a preset time interval is less than a preset number threshold. Generally speaking, it is sufficient to set the detection once a day.

[0067] Step S604, determining the use status of the filter based on the wind pressure and a preset theoretical wind pressure value; wherein the use status of the filter includes a normal state, a state to be adjusted, and a state to be replaced.

[0068] Specifically, the theoretical wind pressure values ​​include: a first theoretical wind pressure value and a second theoretical wind pressure value, wherein the first theoretical wind pressure value is greater than the second theoretical wind pressure value; if the wind pressure is greater than the first theoretical wind pressure value, the use status of the filter is determined to be a normal state; if the wind pressure is less than or equal to the first theoretical wind pressure value, and the wind pressure is greater than the second theoretical wind pressure value, the use status of the filter is determined to be a state to be adjusted; if the wind pressure is less than or equal to the second theoretical wind pressure value, the use status of the filter is determined to be a state to be replaced.

[0069] The control module can set the first theoretical wind pressure value P1 and the second theoretical wind pressure value P2 at the front of the filter at a specific frequency. P1 is the theoretical wind pressure value at the front of the filter when the filter needs maintenance, and P2 is the theoretical wind pressure value at the front of the filter when the filter needs to be maintained and replaced (replaced with a new filter). Among them, P1 and P2 can be obtained through experiments and simulation calculations, and P2 < P1.

[0070] When the central range hood is not in working state, the control module controls the host to enter the filter status detection mode. The wind pressure detection element can send the detected wind pressure value P3 at the front end of the filter to the control module. The control module compares and analyzes the detected wind pressure value P3 at the front end of the filter with the theoretical wind pressure values ​​P1 and P2 set in the control module.

[0071] When P3>P1, the control module can determine that the filter is in good condition and that the filter is in normal condition. If the filter is in normal condition, the steps of replacing or adjusting the filter can be omitted, and the wind pressure value at the front end of the filter can be detected in time.

[0072] When P2≤P3≤P1, the control module may determine that the use state of the filter is a state to be adjusted.

[0073] Specifically, the method further includes: obtaining a count value of the filter; if the use status of the filter is a to-be-adjusted status, and the count value is a first value; adjusting the position of the filter, and adjusting the count value to a second value.

[0074] The control module determines whether the value of the counting element (the counting element is used to store the count value of the filter) is 0 (i.e., the first value) or 1 (i.e., the second value). If the count value is the first value, it means that the filter of the host has not been adjusted before, and the position of the filter can be adjusted; if the count value is the first value, it means that the filter of the host has been adjusted before, and the effect of adjusting the position of the filter is not good at this time, and the dust on the filter has not reached the point where it needs to be replaced. Therefore, no operation can be performed at this time until the wind pressure at the front end of the filter is greater than the second theoretical wind pressure value.

[0075] When P3≤P2, the control module can determine that the use status of the filter is to be replaced. At this time, there is too much dust on the filter and it needs to be replaced in time. In addition, after the filter is replaced, the count value can be adjusted to the first value, indicating that the replaced filter has not performed the step of adjusting the filter position, that is, the count value is cleared to 0.

[0076] Step S606: Replace the filter or adjust the position of the filter based on the usage status of the filter.

[0077] Specifically, the position of the filter can be adjusted by the following steps: adjusting the filter set in the middle part of multiple filter screens to be set on both sides of multiple filter screens; adjusting the filter set on both sides of multiple filter screens to be set in the middle part of multiple filter screens.

[0078] See also Figure 7 The schematic diagram of a filter screen of a host shown in FIG. 4 can be arranged below the centrifugal fan 6, namely: a first filter screen 41, a second filter screen 42, a third filter screen 43, and a fourth filter screen 44. Among them, the second filter screen 42 and the third filter screen 43 are filter screens arranged at both sides of the plurality of filter screens, and the first filter screen 41 and the fourth filter screen 44 are filter screens arranged at the middle of the plurality of filter screens. When adjusting, the first filter screen 41 and the second filter screen 42 can be exchanged, and the third filter screen 43 and the fourth filter screen 44 can be exchanged; or the first filter screen 41 and the third filter screen 43 can be exchanged, and the second filter screen 42 and the fourth filter screen 44 can be exchanged.

[0079] The overall process provided by the embodiment of the present invention can be found in Figure 8 The schematic diagram of a central range hood system control method based on wind pressure is shown. When the central range hood is not in working state, the control module controls the host to enter the filter status detection mode, and the wind pressure detection element sends the detected wind pressure value P3 in front of the filter to the control module. The control module compares and analyzes the detected wind pressure value P3 in front of the filter with the theoretical wind pressure value P1 set in the control module.

[0080] When P3>P1, the control module determines that the filter is in good condition; when P3≤P1, the control module determines that the count value is 0 or 1. When the value is 0, the control module controls the signal transmission module to send a signal to the central range hood cloud platform, and sends the filter maintenance information to the maintenance personnel through the cloud platform. After the maintenance personnel replaces the filter position, they adjust the count value to 1 and enable the host to operate normally; if the control module determines that the count element value is 1, the control module does not do anything.

[0081] When P3≤P2 is detected in the filter status detection mode, the control module controls the signal transmission module to send a signal to the central range hood cloud platform, and sends the filter maintenance and replacement information to the maintenance personnel through the cloud platform. After the maintenance personnel replaces the new filter, the count value is set to 0.

[0082] The above method provided by the embodiment of the present invention can divide the integrated filter into four small filters for splicing and position adjustment, and can timely perform maintenance on the host. By replacing the positions of the filters on both sides and the middle filter, the filters can be fully utilized. The maintenance personnel can be reminded to perform maintenance on the host in time to avoid shortening the service life of the host due to untimely maintenance or wasting materials due to premature maintenance. In this way, the utilization rate of the filter can be improved and the service life of the host can be increased.

[0083] Embodiment 4:

[0084] Corresponding to the above method embodiment, the embodiment of the present invention provides a control device for a central range hood system, the central range hood system comprising a host and a plurality of indoor range hoods, see Fig. 9 The structure diagram of a control device of a central range hood system is shown, and the control device of the central range hood system comprises:

[0085] The filter air pressure detection module 901 is used to detect the air pressure at the front end of the filter of the host when multiple indoor range hoods are not working;

[0086] A usage status determination module 902 is used to determine the usage status of the filter based on the wind pressure and a preset theoretical wind pressure value; wherein the usage status of the filter includes a normal state, a state to be adjusted, and a state to be replaced;

[0087] The filter replacement and adjustment module 903 is used to replace the filter or adjust the position of the filter based on the usage status of the filter.

[0088] The control device of a central range hood system provided by the embodiment of the present invention can determine the use status of the filter of the host according to the wind pressure at the front end of the filter of the host when all indoor range hoods are not working and a preset theoretical wind pressure value, and replace the filter or adjust the position of the filter based on the use status of the filter. The host can be repaired and protected in time, improving the user experience.

[0089] The filter air pressure detection module is used to open the air supply valve of the host when multiple indoor range hoods are not working; control the host to operate at a specified frequency, and detect the air pressure at the front end of the filter of the host.

[0090] The number of times the step of detecting the wind pressure in front of the filter of the host is performed within a preset time interval is less than a preset number threshold.

[0091] The above-mentioned theoretical wind pressure values ​​include: a first theoretical wind pressure value and a second theoretical wind pressure value, wherein the first theoretical wind pressure value is greater than the second theoretical wind pressure value; the above-mentioned usage status determination module is used to determine that the usage status of the filter is a normal status if the wind pressure is greater than the first theoretical wind pressure value; if the wind pressure is less than or equal to the first theoretical wind pressure value, and the wind pressure is greater than the second theoretical wind pressure value, determine that the usage status of the filter is a state to be adjusted; if the wind pressure is less than or equal to the second theoretical wind pressure value, determine that the usage status of the filter is a state to be replaced.

[0092] The filter replacement and adjustment module is used to adjust the position of the filter if the use status of the filter is a to-be-adjusted status; and to replace the filter if the use status of the filter is a to-be-replaced status.

[0093] The host includes multiple filters, and the filter replacement and adjustment module is used to adjust the filter set in the middle of the multiple filters to the two side parts of the multiple filters; and adjust the filter set in the two side parts of the multiple filters to the middle part of the multiple filters.

[0094] The above device also includes a filter non-replacement adjustment module, which is used for not executing the steps of replacing or adjusting the filter if the use status of the filter is normal.

[0095] The above-mentioned device also includes a count value determination module for obtaining the count value of the filter; the above-mentioned filter replacement adjustment module is used to adjust the position of the filter and adjust the count value to the second value if the use status of the filter is a waiting adjustment status and the count value is a first value.

[0096] The above device also includes a count value changing module, which is used to adjust the count value to the first value after the filter is replaced.

[0097] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working process of the control device of the central range hood system described above can refer to the corresponding process in the embodiment of the control method of the aforementioned central range hood system, and will not be repeated here.

[0098] Embodiment five:

[0099] The embodiment of the present invention also provides an electronic device for running the control method of the central range hood system; see Fig.10 A structural schematic diagram of an electronic device is shown, which includes a memory 100 and a processor 101, wherein 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 above-mentioned central range hood system.

[0100] Further, Fig.10 The electronic device shown further includes a bus 102 and a communication interface 103 , and the processor 101 , the communication interface 103 and the memory 100 are connected via the bus 102 .

[0101] The memory 100 may include a high-speed random access memory (RAM), and may also include a non-volatile memory, such as at least one disk storage. The communication connection between the system network element 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, wide area network, local area network, metropolitan area network, etc. may be used. The bus 102 may be an ISA bus, a PCI bus, or an EISA bus, etc. The bus can be divided into an address bus, a data bus, a control bus, etc. For ease of representation, Fig.10 Only one bidirectional arrow is used in the diagram, but this does not mean that there is only one bus or only one type of bus.

[0102] The processor 101 may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the above method can be completed by the hardware integrated logic circuit or software instructions in the processor 101. The above processor 101 can be a general-purpose processor, including a central processing unit (CPU), a network processor (NP), etc.; it can also be a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components. The methods, steps and logic block diagrams disclosed in the embodiments of the present invention can be implemented or executed. The general processor can be a microprocessor or the processor can also be any conventional processor, etc. The steps of the method disclosed in conjunction with the embodiments of the present invention can be directly embodied as a hardware decoding processor for execution, or a combination of hardware and software modules in the decoding processor for execution. The software module may be located in a storage medium mature in the art, such as a random access memory, a flash memory, a read-only memory, a programmable read-only memory, or an electrically erasable programmable memory, a register, etc. 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 above embodiment in combination with its hardware.

[0103] An embodiment of the present invention also provides a computer-readable storage medium, which stores computer-executable instructions. When the computer-executable instructions are called and executed by a processor, the computer-executable instructions prompt the processor to implement the control method of the above-mentioned central range hood system. The specific implementation can be found in the method embodiment, which will not be repeated here.

[0104] The control method and device of the central range hood system and the computer program product of the central range hood system provided in the embodiments of the present invention include a computer-readable storage medium storing program code. The instructions included in the program code can be used to execute the methods in the previous method embodiments. The specific implementation can be found in the method embodiments and will not be repeated here.

[0105] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working process of the system and / or device described above can refer to the corresponding process in the aforementioned method embodiment, and will not be repeated here.

[0106] In addition, in the description of the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0107] If the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, or the part that contributes to the prior art or the part of the technical solution, can be embodied in the form of a software product. The computer software product is stored in a storage medium, including several instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the methods described in each embodiment of the present invention. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), disk or optical disk, etc., which can store program codes.

[0108] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0109] Finally, it should be noted that the above-described embodiments are only specific implementations of the present invention, which are used to illustrate the technical solutions of the present invention, rather than to limit them. The protection scope of the present invention is not limited thereto. Although the present invention is described in detail with reference to the above-described embodiments, ordinary technicians in the field should understand that any technician familiar with the technical field can still modify the technical solutions recorded in the above-described embodiments within the technical scope disclosed by the present invention, or can easily think of changes, or make equivalent replacements for some of the technical features therein; and these modifications, changes or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention, and should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A control method for a central range hood system, characterized in that: The central range hood system comprises a host and a plurality of indoor range hoods, and the method comprises: When the plurality of indoor range hoods are not working, detecting the wind pressure at the front end of the filter of the host; Determining the use state of the filter based on the wind pressure and a preset theoretical wind pressure value; wherein the use state of the filter includes a normal state, a state to be adjusted, and a state to be replaced; Replace the filter or adjust the position of the filter based on the usage status of the filter; When the plurality of indoor range hoods are not working, the step of detecting the wind pressure at the front end of the filter of the host comprises: when the plurality of indoor range hoods are not working, opening the air supply valve of the host; controlling the host to operate at a specified frequency, and detecting the wind pressure at the front end of the filter of the host; The theoretical wind pressure value includes: a first theoretical wind pressure value and a second theoretical wind pressure value, wherein the first theoretical wind pressure value is greater than the second theoretical wind pressure value; the step of determining the use state of the filter based on the wind pressure and the preset theoretical wind pressure value includes: if the wind pressure is greater than the first theoretical wind pressure value, determining that the use state of the filter is a normal state; if the wind pressure is less than or equal to the first theoretical wind pressure value, and the wind pressure is greater than the second theoretical wind pressure value, determining that the use state of the filter is a state to be adjusted; if the wind pressure is less than or equal to the second theoretical wind pressure value, determining that the use state of the filter is a state to be replaced; The host includes multiple filters, and the step of adjusting the position of the filters includes: adjusting the filter set in the middle part of the multiple filters to the two side parts of the multiple filters; adjusting the filter set in the two side parts of the multiple filters to the middle part of the multiple filters.

2. The method according to claim 1, characterized in that The number of times the step of detecting the wind pressure at the front end of the filter of the host is performed within a preset time interval is less than a preset number threshold.

3. The method according to claim 1, characterized in that The step of replacing the filter or adjusting the position of the filter based on the use status of the filter includes: If the use state of the filter is the to-be-adjusted state, adjusting the position of the filter; If the usage status of the filter is the to-be-replaced status, replace the filter.

4. The method according to claim 1, characterized in that The method further comprises: If the usage status of the filter is the normal status, the step of replacing the filter or adjusting the filter is not performed.

5. The method according to claim 3, characterized in that: The method further comprises: obtaining a count value of the filter screen; If the use state of the filter is the to-be-adjusted state, the step of adjusting the position of the filter includes: if the use state of the filter is the to-be-adjusted state and the count value is a first value; adjusting the position of the filter and adjusting the count value to a second value.

6. The method according to claim 5, characterized in that The method further comprises: After the filter is replaced, the count value is adjusted to the first value.

7. A control device for a central range hood system, characterized in that: The central range hood system comprises a main unit and a plurality of indoor range hoods, and the device comprises: A filter air pressure detection module, used to detect the air pressure at the front end of the filter of the host when the plurality of indoor range hoods are not working; A usage status determination module, used to determine the usage status of the filter based on the wind pressure and a preset theoretical wind pressure value; wherein the usage status of the filter includes a normal state, a state to be adjusted, and a state to be replaced; A filter replacement and adjustment module, used to replace the filter or adjust the position of the filter based on the usage status of the filter; When the plurality of indoor range hoods are not working, the step of detecting the wind pressure at the front end of the filter of the host comprises: when the plurality of indoor range hoods are not working, opening the air supply valve of the host; controlling the host to operate at a specified frequency, and detecting the wind pressure at the front end of the filter of the host; The theoretical wind pressure value includes: a first theoretical wind pressure value and a second theoretical wind pressure value, wherein the first theoretical wind pressure value is greater than the second theoretical wind pressure value; the use status determination module is used to determine that the use status of the filter is a normal state if the wind pressure is greater than the first theoretical wind pressure value; determine that the use status of the filter is a to-be-adjusted state if the wind pressure is less than or equal to the first theoretical wind pressure value and the wind pressure is greater than the second theoretical wind pressure value; determine that the use status of the filter is a to-be-replaced state if the wind pressure is less than or equal to the second theoretical wind pressure value; The host includes multiple filters, and the filter replacement and adjustment module is used to adjust the filter set in the middle part of the multiple filters to the two side parts of the multiple filters; and adjust the filter set in the two side parts of the multiple filters to the middle part of the multiple filters.

8. A central range hood system, characterized in that: The central range hood system comprises: a host and a plurality of indoor range hoods; the host comprises: a filter, a control module, a wind pressure detection element and a signal transmission module; The wind pressure detection element is used to detect the wind pressure at the front end of the filter of the host when the plurality of indoor range hoods are not working; The control module is used to determine the use state of the filter based on the wind pressure and a preset theoretical wind pressure value; wherein the use state of the filter includes a normal state, a state to be adjusted, and a state to be replaced; The signal transmission module is used to send the use status of the filter to the user terminal of the maintenance personnel, so that the maintenance personnel can replace the filter or adjust the position of the filter based on the use status of the filter; The host further comprises: an air supply valve; when the plurality of indoor range hoods are not working, the air supply valve of the host is opened; the wind pressure detection element is used to control the host to operate at a specified frequency and detect the wind pressure at the front end of the filter of the host; The theoretical wind pressure value includes: a first theoretical wind pressure value and a second theoretical wind pressure value, wherein the first theoretical wind pressure value is greater than the second theoretical wind pressure value; the control module is used to determine that the use state of the filter is a normal state if the wind pressure is greater than the first theoretical wind pressure value; determine that the use state of the filter is a to-be-adjusted state if the wind pressure is less than or equal to the first theoretical wind pressure value and the wind pressure is greater than the second theoretical wind pressure value; determine that the use state of the filter is a to-be-replaced state if the wind pressure is less than or equal to the second theoretical wind pressure value; The host includes multiple filters, and adjusting the positions of the filters includes: adjusting the filter set in the middle part of the multiple filters to the two side parts of the multiple filters; adjusting the filter set in the two side parts of the multiple filters to the middle part of the multiple filters.

9. The central range hood system according to claim 8, characterized in that: The host also includes: a counting element; The counting element is used to store the counting value of the filter.

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