Control method, device and electronic equipment of range hood

Abstract

The application provides a control method and device of an extractor hood and electronic equipment. The method is applied to a variable frequency control cabinet of a central purification system, and the method comprises the following steps: collecting real-time gas flow used by a stove when the stove is ignited; determining a target operating frequency of an extractor hood fan based on the real-time gas flow and preset parameters; wherein, the preset parameters comprise: standard stove power, standard gas flow of the stove, reference stove power, standard oil fume air volume of the reference stove, rated air volume of the extractor hood fan and operating frequency corresponding to the rated air volume of the extractor hood fan; and sending the target operating frequency to the extractor hood, so that the extractor hood fan operates based on the target operating frequency. In this way, the target operating frequency of the extractor hood fan can be accurately calculated based on the real-time gas flow of the stove actually used, the intelligentization and refinement degree of the extractor hood fan can be improved, and the energy-saving effect of the central purification system is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of range hood technology, and in particular to a range hood control method, device and electronic equipment. BACKGROUND

[0002] At present, commercial central purification systems generally take kitchens as terminals, and a power distribution valve is installed on the total smoke pipe of each kitchen to adjust system air volume and power distribution. When the kitchen is used, the user needs to press the key switch arranged in the kitchen, the valve body is opened, and the host receives information, so as to realize starting and power adjustment.

[0003] However, the above-mentioned method is to control one kitchen as a whole, and cannot realize fine control of the system and is not intelligent enough. The kitchen terminal mode ignores the problem that the power distribution accuracy is not high due to the different sizes of kitchens, the number of cooking ranges and the number of real-time used cooking ranges. At the same time, such a system is not energy-saving enough, and even in projects with few kitchens such as hotels and canteens, energy-saving cannot be realized. SUMMARY

[0004] Therefore, the purpose of the present application is to provide a range hood control method, device and electronic equipment to improve the intelligence and fineness of the range hood fan and improve the energy-saving effect of the central purification system.

[0005] In a first aspect, an embodiment of the present application provides a range hood control method applied to a variable frequency control cabinet of a central purification system; the method comprises: when a stove is ignited, collecting real-time gas flow used by the stove; determining a target operating frequency of a range hood fan based on the real-time gas flow and pre-set parameters; wherein the pre-set parameters include: standard stove power, standard gas flow of the stove, reference stove power, standard range hood air volume of the reference stove, rated air volume of the range hood fan and operating frequency corresponding to the rated air volume of the range hood fan; and sending the target operating frequency to the range hood, so that the range hood fan operates based on the target operating frequency.

[0006] In an optional embodiment of the present application, the above-mentioned method further comprises: when the stove is ignited, starting an electric air valve of the central purification system; the electric air valve sends an opening signal to the variable frequency control cabinet; and the variable frequency control cabinet controls the range hood fan to start based on the opening signal.

[0007] In an optional embodiment of the present application, the above-mentioned step of collecting real-time gas flow used by the stove when the stove is ignited comprises: when the stove is ignited, an ultrasonic flow sensor of the central purification system collects real-time gas flow used by the stove; and the ultrasonic flow sensor sends the real-time gas flow to the variable frequency control cabinet.

[0008] In an optional embodiment of this application, the step of determining the target operating frequency of the range hood fan based on real-time gas flow and preset parameters includes: determining the real-time stove power based on real-time gas flow, standard stove power, and standard gas flow of the stove; determining the stove power coefficient based on real-time stove power and reference stove power; determining the target fume air volume based on the stove power coefficient and the standard fume air volume of the reference stove; and determining the target operating frequency of the range hood fan based on the target fume air volume, the rated air volume of the range hood fan, and the operating frequency corresponding to the rated air volume of the range hood fan.

[0009] In an optional embodiment of this application, the real-time stove power is determined based on the real-time gas flow rate, standard stove power, and standard stove gas flow rate using the following formula: Among them, P n P0 represents the real-time stove power, and L represents the standard stove power. n L0 represents the real-time gas flow rate, while L0 represents the standard gas flow rate for the stove.

[0010] In an optional embodiment of this application, the stove power coefficient is determined based on the real-time stove power and the reference stove power using the following formula: Where δ is the stove power coefficient, P n P'0 represents the real-time stove power, while P'0 represents the baseline stove power.

[0011] In an optional embodiment of this application, the target fume volume is determined based on the stove power coefficient and the standard fume volume of a reference stove using the following formula: Q n =δ×q; where Q n δ represents the target fume volume, q represents the stove power coefficient, and q represents the standard fume volume of the reference stove.

[0012] In an optional embodiment of this application, the target operating frequency of the range hood fan is determined based on the target fume volume, the rated air volume of the range hood fan, and the operating frequency corresponding to the rated air volume of the range hood fan, using the following formula: Where, N n Q is the target operating frequency of the range hood fan. n The target fume air volume is defined as Q0, where Q0 is the rated air volume of the range hood fan, and N0 is the operating frequency corresponding to the rated air volume of the range hood fan.

[0013] In a second aspect, the embodiment of the present application further provides a control device of an extractor hood, which is applied to a variable frequency control cabinet of a central purification system. The device comprises: a real-time gas flow acquisition module, configured to acquire a real-time gas flow used by a stove when the stove is ignited; a target operating frequency determination module, configured to determine a target operating frequency of a fan of the extractor hood based on the real-time gas flow and preset parameters; wherein the preset parameters comprise: a standard stove power, a standard gas flow of the stove, a benchmark stove power, a standard oil fume air volume of the benchmark stove, a rated air volume of the fan of the extractor hood, and an operating frequency corresponding to the rated air volume of the fan of the extractor hood; and an extractor hood fan control module, configured to send the target operating frequency to the extractor hood, so that the fan of the extractor hood operates based on the target operating frequency.

[0014] In a third aspect, the embodiment of the present application further provides an electronic device, comprising a processor and a memory, the memory storing computer executable instructions capable of being executed by the processor, and the processor executes the computer executable instructions to implement the control method of the extractor hood.

[0015] In a fourth aspect, the embodiment of the present application further provides a computer readable storage medium, which stores computer executable instructions, and the computer executable instructions, when invoked and executed by a processor, cause the processor to implement the control method of the extractor hood.

[0016] The embodiment of the present application brings the following beneficial effects:

[0017] The control method, device and electronic device of the extractor hood provided by the embodiment of the present application can acquire a real-time gas flow used by a stove when the stove is ignited, determine a target operating frequency of a fan of the extractor hood based on the real-time gas flow and preset parameters, and control the fan of the extractor hood to operate based on the target operating frequency. In this way, the target operating frequency of the fan of the extractor hood can be accurately calculated based on the real-time gas flow of the stove actually used, the intelligentization and refinement of the fan of the extractor hood can be improved, and the energy saving effect of the central purification system can be improved.

[0018] Other features and advantages of the present disclosure will be described in the following description, or can be learned from the description, or can be determined without any doubt, or can be known by implementing the above-mentioned technologies of the present disclosure.

[0019] In order to make the above-mentioned purposes, features and advantages of the present disclosure more obvious and easy to understand, the following preferred embodiments are specifically described in detail below, and the accompanying drawings are described as follows. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to make the specific embodiment of the present application or the technical solutions in the prior art clearer, the drawings needed in the specific embodiment or the prior art description will be briefly introduced as follows. Obviously, the drawings in the following description are some embodiments of the present application, and all other embodiments obtained by those skilled in the art without any creative work on the basis of these drawings also belong to the protection scope of the present application.

[0021] Figure 1 A schematic diagram of an existing commercial central purification system provided for an embodiment of the present application;

[0022] Figure 2 A flowchart of a control method of a range hood provided for an embodiment of the present application;

[0023] Figure 3 A flowchart of another control method of a range hood provided for an embodiment of the present application;

[0024] Figure 4 A schematic diagram of a central purification system provided for an embodiment of the present application;

[0025] Figure 5 A schematic diagram of a mounting mode of an ultrasonic flow sensor provided for an embodiment of the present application;

[0026] Figure 6 A control logic diagram of a central purification system provided for an embodiment of the present application;

[0027] Figure 7 A structural schematic diagram of a control device of a range hood provided for an embodiment of the present application;

[0028] Figure 8 A structural schematic diagram of an electronic device provided for an embodiment of the present application. DETAILED DESCRIPTION

[0029] In order to make the specific embodiment of the present application or the technical solutions in the prior art clearer, the drawings needed in the specific embodiment or the prior art description will be briefly introduced as follows. Obviously, the drawings in the following description are some embodiments of the present application, and all other embodiments obtained by those skilled in the art without any creative work on the basis of these drawings also belong to the protection scope of the present application.

[0030] At present, the commercial central purification system generally takes the kitchen as the terminal, a power distribution valve is installed on the total smoke pipe of each kitchen to adjust the system air volume and power distribution. When the kitchen is used, the user needs to press the key switch arranged in the kitchen, the valve body is opened, the host receives the information, so as to realize the starting and power adjustment. However, the above-mentioned mode is to control the whole kitchen, and cannot realize fine control of the system, and is not intelligent enough. The terminal mode of the kitchen ignores the problem that the power distribution precision is not high due to the different sizes of the kitchens, the number of cooking tables and the number of real-time used cooking tables. At the same time, such a system is not energy-saving enough, and even in the projects with few kitchens such as hotels and canteens, energy saving cannot be realized.

[0031] Referring to Figure 1 As shown in a schematic view of an existing commercial central purification system, a plurality of kitchens are connected in a set of commercial central purification systems, and a controllable air valve is installed on the branch air pipe of each kitchen. When a kitchen needs to be used, the switch is pressed, the corresponding air valve is opened and a signal is transmitted to the central processor. The central processor adjusts the frequency of the fan and the air volume of each kitchen according to how many kitchens are opened in real time. However, it is impossible to realize fine distribution of the air volume of different cooking tables in the kitchen.

[0032] However, the existing commercial central purification system has the following defects: the current control needs to be manually opened and closed, and the matching with the actual use of the stove is poor, the adjustment precision of the range hood fan is poor, and the error is large; at the same time, the terminal is not fine enough, the energy-saving frequency conversion of the whole system is not fine enough, and the energy-saving effect is greatly reduced; the control needs to be manually opened and closed for each kitchen, and since there is no fan in the kitchen (power is provided by the external host), it is easy to forget to close, causing useless work of the system, and the control mode is not intelligent enough.

[0033] Based on this, the embodiment of the application provides a control method and device of a range hood and electronic equipment, and specifically provides a central purification system and a control method thereof, so as to realize fine control and realize the air volume adjustment function of the system and improve the energy-saving and emission-reducing effect.

[0034] The embodiment of the application provides a new control mode of a central purification system, which can improve the intelligentization and fine degree of the air volume adjustment of the range hood fan, improve the energy-saving effect of the commercial central purification system, realize automatic starting and stopping of the cooking table, change the control terminal from the original whole shop (kitchen) to a single stove, identify more unopened terminals, improve the energy-saving effect, and simplify the control and improve the intelligent level without manual control.

[0035] In order to facilitate the understanding of the embodiment, first, a control method of a range hood disclosed by the embodiment of the application is introduced in detail.

[0036] Embodiment one:

[0037] The embodiment of the present application provides a control method of an oil fume exhaust machine, which is applied to a frequency conversion control cabinet of a central purification system. Figure 2 As shown in a flowchart of the control method of the oil fume exhaust machine, the control method of the oil fume exhaust machine comprises the following steps:

[0038] In step S202, when a stove is ignited, real-time gas flow used by the stove is collected.

[0039] The central purification system of the embodiment can control multiple stoves, wherein when a certain stove X is ignited, the ultrasonic flow sensor of the central purification system can collect real-time gas flow of the stove X and send the real-time gas flow of the stove X to the frequency conversion control cabinet of the central purification system.

[0040] In step S204, the target running frequency of the oil fume exhaust machine fan is determined based on the real-time gas flow and the pre-set parameters.

[0041] The frequency conversion control cabinet can pre-store some pre-set parameters. The pre-set parameters comprise standard stove power, standard gas flow of the stove, reference stove power, standard oil fume air volume of the reference stove, rated air volume of the oil fume exhaust machine fan and the running frequency corresponding to the rated air volume of the oil fume exhaust machine fan.

[0042] After the frequency conversion control cabinet of the central purification system receives the real-time gas flow of the stove X, the target running frequency of the oil fume exhaust machine fan corresponding to the stove X can be calculated according to the real-time gas flow of the stove X and the pre-set parameters, and the target running frequency of the oil fume exhaust machine fan is sent to the controller of the oil fume exhaust machine.

[0043] In step S206, the target running frequency is sent to the oil fume exhaust machine, so that the oil fume exhaust machine fan runs based on the target running frequency.

[0044] After the controller of the oil fume exhaust machine X receives the target running frequency of the oil fume exhaust machine fan, the oil fume exhaust machine fan can be controlled to run based on the target running frequency, so as to meet the exhaust requirement of the stove X, realize accurate control of each stove and save energy.

[0045] The control method of the oil fume exhaust machine provided by the embodiment of the present application can collect real-time gas flow used by the stove when the stove is ignited, determine the target running frequency of the oil fume exhaust machine fan based on the real-time gas flow and the pre-set parameters, and control the oil fume exhaust machine fan to run based on the target running frequency. In this way, the target running frequency of the oil fume exhaust machine fan can be accurately calculated through the real-time gas flow of the actually used stove, the intelligentization and refinement degree of the oil fume exhaust machine fan can be improved, and the energy saving effect of the central purification system is improved.

[0046] Embodiment two:

[0047] The embodiment provides another control method of the range hood, which is implemented on the basis of the above-mentioned embodiment, as shown in the flowchart of another control method of the range hood, the control method of the range hood in the embodiment comprises the following steps: Figure 3

[0048] In detail, when the range is ignited, the ultrasonic flow sensor of the central purification system collects the real-time gas flow used by the range; the ultrasonic flow sensor sends the real-time gas flow to the frequency conversion control cabinet.

[0049] In detail, when the range is ignited, the ultrasonic flow sensor of the central purification system collects the real-time gas flow used by the range; the ultrasonic flow sensor sends the real-time gas flow to the frequency conversion control cabinet.

[0050] Referring to the schematic diagram of the central purification system shown in Figure 4 The central purification system comprises a frequency conversion control cabinet, an electric air valve and an ultrasonic flow sensor. Referring to the schematic diagram of the installation mode of the ultrasonic flow sensor shown in Figure 5 The position of the ultrasonic flow sensor installed on the gas pipeline is shown. Referring to the control logic diagram of the central purification system shown in Figure 5 The control logic of the central purification system is shown. Figure 6 The control logic of the central purification system is shown. Figure 6 The control logic of the central purification system is shown.

[0051] In detail, when the range is ignited, the electric air valve of the central purification system is started; the electric air valve sends an opening signal to the frequency conversion control cabinet; the frequency conversion control cabinet controls the range hood fan to start based on the opening signal. As shown in Figure 4 to Figure 6 The range is an appliance used for cooking in a commercial kitchen, and when the range is ignited, the electric air valve is opened, the electric air valve transmits an opening signal to the frequency conversion control cabinet, and the frequency conversion control cabinet controls the range hood fan to start.

[0052] As shown in Figure 4 to Figure 6 At the same time of ignition, the ultrasonic flow sensor can collect the real-time gas flow used by the range (i.e. the real-time gas flow), and transmit the real-time gas flow to the frequency conversion control cabinet through an electric signal, and the frequency conversion control cabinet calculates and outputs a target running frequency, and adjusts the range hood fan to run based on the target running frequency.

[0053] Step S304, determining the real-time range power based on the real-time gas flow, the standard range power and the standard gas flow of the range.

[0054] In detail, the embodiment can determine the real-time range power based on the real-time gas flow, the standard range power and the standard gas flow of the range by the following formula:

[0055] P n ​P0 is the standard stove power, L n L0 is the standard stove gas flow.

[0056] Real-time gas flow L n The standard stove power P0 and the standard stove gas flow L0 can be determined according to the form of the stove based on the partial common stoves and parameter values shown in Table 1.

[0057]

[0058]

[0059] Table 1

[0060] Step S306, determining the stove power coefficient based on the real-time stove power and the reference stove power.

[0061] Specifically, the stove power coefficient can be determined based on the real-time stove power and the reference stove power by the following formula in the embodiment:

[0062] Wherein, δ is the stove power coefficient, P n is the real-time stove power, and P'0 is the reference stove power. The real-time stove power P n can be calculated by the foregoing steps, and the reference stove power P'0 can be 1.67x10 8 J / h, i.e. 46.4kW.

[0063] Step S308, determining the target oil fume air volume based on the stove power coefficient and the standard oil fume air volume of the reference stove.

[0064] Specifically, the target oil fume air volume can be determined based on the stove power coefficient and the standard oil fume air volume of the reference stove by the following formula in the embodiment: Q n = δxq.

[0065] Wherein, Q n is the target oil fume air volume, δ is the stove power coefficient, and q is the standard oil fume air volume of the reference stove. The stove power coefficient δ can be calculated by the foregoing steps, and the standard oil fume air volume q of the reference stove can be 2000m 3 / h.

[0066] Step S310, determining the target operating frequency of the oil fume fan based on the target oil fume air volume, the rated air volume of the oil fume fan, and the operating frequency corresponding to the rated air volume of the oil fume fan.

[0067] Specifically, the embodiment can determine the target operating frequency of the range hood fan based on the target fume air volume, the rated fume air volume of the range hood fan, and the operating frequency corresponding to the rated fume air volume of the range hood fan according to the following formula:

[0068] wherein N n is the target operating frequency of the range hood fan, Q n is the target fume air volume, Q0 is the rated fume air volume of the range hood fan, and N0 is the operating frequency corresponding to the rated fume air volume of the range hood fan.

[0069] The target fume air volume Q n can be calculated through the foregoing steps, and the rated fume air volume Q0 of the range hood fan can be determined according to the model of the range hood and the gear being used. The embodiment can pre-set the corresponding relationship between the rated fume air volume and the operating frequency of the range hood fan of different models, and determine the operating frequency N0 corresponding to the rated fume air volume of the range hood fan based on the corresponding relationship.

[0070] In addition, it should be noted that the letter n in the foregoing formulae can be understood as the nth stove controlled by the central purification system, and the nth stove is the stove being used.

[0071] In step S312, the target operating frequency is sent to the range hood, so that the range hood fan operates based on the target operating frequency.

[0072] After the target operating frequency is calculated, the central control cabinet can send the target operating frequency to the controller of the range hood, and the range hood fan can be controlled to operate at the target operating frequency, so as to finely control the range hood corresponding to each stove.

[0073] The above method provided by the embodiment of the application can convert the real-time gas flow of the stove into the power of the reference stove, calculate the required fume air volume, adjust the target operating frequency of the range hood fan, and control the range hood fan to operate at the target operating frequency.

[0074] In this way, the range hood control can be combined with the actual use of the stove that generates fume and heat, the performance of the range hood fan can be adjusted according to the real fume exhaust demand, the fine adjustment target can be achieved, and the dynamic adjustment accuracy of the central purification system can be improved. In this way, the control can be simplified, the intelligent level can be improved, and the user does not need to manually control the start, so that the automation control of the central purification system can be realized. In this way, the range hood fan can be adjusted on demand, and the energy-saving effect of the commercial central purification system can be improved.

[0075] Embodiment three:

[0076] Corresponding to the above method embodiment, the embodiment of the application provides a control device of a range hood, which is applied to a variable frequency control cabinet of a central purification system. Figure 7 As shown in a structural schematic diagram of a control device of a range hood, the control device of the range hood comprises:

[0077] A real-time gas flow acquisition module 71 is configured to acquire a real-time gas flow used by a stove when the stove is ignited.

[0078] A target operating frequency determination module 72 is configured to determine a target operating frequency of a range hood fan based on the real-time gas flow and preset parameters, wherein the preset parameters comprise a standard stove power, a standard gas flow of a stove, a benchmark stove power, a standard range hood air volume of a benchmark stove, a rated air volume of the range hood fan, and an operating frequency corresponding to the rated air volume of the range hood fan.

[0079] A range hood fan control module 73 is configured to send the target operating frequency to the range hood, so that the range hood fan operates based on the target operating frequency.

[0080] The control device of the range hood provided by the embodiment of the application can acquire a real-time gas flow used by a stove when the stove is ignited, determine a target operating frequency of a range hood fan based on the real-time gas flow and preset parameters, and control the range hood fan to operate based on the target operating frequency. In this way, the target operating frequency of the range hood fan is accurately calculated based on the real-time gas flow of the actually used stove, the intelligentization and refinement of the range hood fan can be improved, and the energy-saving effect of the central purification system can be improved.

[0081] The above device comprises a range hood fan starting module configured to start an electric air valve of a central purification system when a stove is ignited; the electric air valve sends an opening signal to a variable frequency control cabinet; and the variable frequency control cabinet controls the range hood fan to start based on the opening signal.

[0082] The above real-time gas flow acquisition module is configured to acquire a real-time gas flow used by a stove by an ultrasonic flow sensor of the central purification system when the stove is ignited; and the ultrasonic flow sensor sends the real-time gas flow to the variable frequency control cabinet.

[0083] The above target operating frequency determination module is configured to determine a real-time stove power based on the real-time gas flow, a standard stove power, and a standard gas flow of a stove; determine a stove power coefficient based on the real-time stove power and a benchmark stove power; determine a target range hood air volume based on the stove power coefficient and a standard range hood air volume of a benchmark stove; and determine a target operating frequency of a range hood fan based on the target range hood air volume, a rated air volume of the range hood fan, and an operating frequency corresponding to the rated air volume of the range hood fan.

[0084] The aforementioned target operating frequency determination module is used to determine the real-time stove power based on the real-time gas flow rate, standard stove power, and standard stove gas flow rate using the following formula: Among them, P n P0 represents the real-time stove power, and L represents the standard stove power. n L0 represents the real-time gas flow rate, while L0 represents the standard gas flow rate for the stove.

[0085] The aforementioned target operating frequency determination module is used to determine the stove power coefficient based on the real-time stove power and the reference stove power using the following formula: Where δ is the stove power coefficient, P n P'0 represents the real-time stove power, while P'0 represents the baseline stove power.

[0086] The aforementioned target operating frequency determination module is used to determine the target fume volume based on the stove power coefficient and the standard fume volume of a benchmark stove using the following formula: Q n =δ×q; where Q n δ represents the target fume volume, q represents the stove power coefficient, and q represents the standard fume volume of the reference stove.

[0087] The aforementioned target operating frequency determination module is used to determine the target operating frequency of the range hood fan based on the target fume air volume, the rated air volume of the range hood fan, and the operating frequency corresponding to the rated air volume of the range hood fan, using the following formula: Where, N n Q is the target operating frequency of the range hood fan. n The target fume air volume is defined as Q0, where Q0 is the rated air volume of the range hood fan, and N0 is the operating frequency corresponding to the rated air volume of the range hood fan.

[0088] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working process of the control device of the range hood described above can be referred to the corresponding process in the embodiments of the control method of the range hood mentioned above, and will not be repeated here.

[0089] Example 4:

[0090] This invention also provides an electronic device for controlling the operation of the above-described range hood; see [link to previous document]. Figure 8 The diagram shows the structure of an electronic device, which includes a memory 100 and a processor 101. The memory 100 is used to store one or more computer instructions, which are executed by the processor 101 to implement the above-mentioned control method for the range hood.

[0091] Furthermore, Figure 8The electronic device shown also includes a bus 102 and a communication interface 103, the processor 101, the communication interface 103 and the memory 100 are connected through the bus 102.

[0092] The memory 100 can include a high-speed random access memory (RAM), and can also include a non-volatile memory, such as at least one disk memory. 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 can be wired or wireless), and the Internet, a wide area network, a local area network, a metropolitan area network, etc. can be used. The bus 102 can 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, Figure 8 Only one bidirectional arrow is used in the figure, but it does not mean that there is only one bus or one type of bus.

[0093] The processor 101 can be an integrated circuit chip with signal processing capability. In the implementation process, each step of the above method can be completed by integrated logic circuits of hardware in the processor 101 or instructions in the form of software. The processor 101 described above 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. Each method, step and logic block disclosed in the embodiment of the present application can be implemented or executed. The general-purpose processor can be a microprocessor or the processor can also be any conventional processor. The steps of the method disclosed in combination with the embodiment of the present application can be directly embodied as a hardware code processor for execution, or a combination of hardware and software modules in the code processor for execution. The software module can be located in a random access memory, a flash memory, a read-only memory, a programmable read-only memory, an electrically erasable programmable memory, a register, etc. The storage medium is mature in the art. The storage medium is located in the memory 100, and the processor 101 reads the information in the memory 100, and combines the hardware to complete the steps of the method of the above embodiment.

[0094] The embodiment of the present application further provides a computer readable storage medium, which stores computer executable instructions, and the computer executable instructions cause the processor to implement the control method of the range hood when the computer executable instructions are called and executed by the processor.

[0095] The control method of the range hood, the device and the computer program product of the electronic equipment provided by the embodiment of the present application include a computer readable storage medium storing program codes, instructions included in the program codes can be used to execute the method in the foregoing method embodiment, and specific implementation can be referred to the method embodiment, which will not be described here.

[0096] 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 foregoing method embodiment, which will not be described here.

[0097] In addition, in the description of the embodiment of the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection" and "connection" should be understood in a broad sense, for example, can be fixedly connected, can be detachably connected, or integrally connected; can be mechanically connected, or electrically connected; can be directly connected, or indirectly connected through an intermediate medium; can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0098] If the functions are realized in the form of software function units and sold or used as independent products, they can be stored in a computer readable storage medium. Based on this understanding, the technical solutions of the present application or the part of the present application which essentially contributes to the prior art or the part of the technical solutions can be embodied in the form of software products, and the computer software product is stored in a storage medium, including a plurality of instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the method described in various embodiments of the present application. The foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM, Read-Only Memory), a random access memory (RAM, Random Access Memory), a magnetic disk or an optical disk, and various media that can store program codes.

[0099] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0100] Finally, it should be noted that the above-described embodiments are only specific embodiments of the present application, which are used to illustrate the technical solutions of the present application, and are not limiting. The protection scope of the present application is not limited thereto. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that any person skilled in the art can make modifications or easily think of changes to the technical solutions recorded in the foregoing embodiments within the technical range disclosed by the present application, or make equivalent replacements to some technical features; and these modifications, changes or replacements do not cause the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present application, and should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A control method of an extractor hood, characterized in that, The application relates to a frequency conversion control cabinet applied to a central purification system. When the stove is ignited, the real-time gas flow used by the stove is collected; Based on the real-time gas flow and the preset parameters, the target running frequency of the range hood fan is determined; wherein the preset parameters include: standard stove power, standard gas flow of the stove, benchmark stove power, standard range hood air volume of the benchmark stove, rated air volume of the range hood fan and the running frequency corresponding to the rated air volume of the range hood fan; The target running frequency is sent to the range hood, so that the range hood fan runs based on the target running frequency; The step of determining the target running frequency of the range hood fan based on the real-time gas flow and the preset parameters includes: determining the real-time stove power based on the real-time gas flow, the standard stove power and the standard gas flow of the stove; determining the stove power coefficient based on the real-time stove power and the benchmark stove power; determining the target range hood air volume based on the stove power coefficient and the standard range hood air volume of the benchmark stove; determining the target running frequency of the range hood fan based on the target range hood air volume, the rated air volume of the range hood fan and the running frequency corresponding to the rated air volume of the range hood fan.

2. The method of claim 1, wherein, The method further includes: When the stove is ignited, the electric air valve of the central purification system is started; The electric air valve sends an opening signal to the frequency conversion control cabinet; The frequency conversion control cabinet controls the start of the range hood fan based on the opening signal.

3. The method of claim 1, wherein, The step of collecting the real-time gas flow used by the stove when the stove is ignited includes: When the stove is ignited, the ultrasonic flow sensor of the central purification system collects the real-time gas flow used by the stove; The ultrasonic flow sensor sends the real-time gas flow to the frequency conversion control cabinet.

4. The method of claim 1, wherein, Real-time stove power is determined based on the real-time gas flow, standard stove power and stove standard gas flow by the following equation: ; wherein, is the real-time stove power, is the standard stove power, is the real-time gas flow, is the stove standard gas flow.

5. The method of claim 1, wherein, A stove power factor is determined based on the real-time stove power and a reference stove power by the following equation: ; wherein, is the power coefficient of the hob, is the real-time hob power, is the reference hob power.

6. The method of claim 1, wherein, A target fume air volume is determined based on the cooking range power coefficient and a standard fume air volume of a reference cooking range by the following equation: ; wherein, is the target fume air volume, is the stove power coefficient, is the standard fume air volume of the reference stove.

7. The method of claim 1, wherein, A target operating frequency of the range hood fan is determined based on the target range hood air volume, a rated air volume of the range hood fan, and an operating frequency corresponding to the rated air volume of the range hood fan by the following equation: ; wherein, is a target operating frequency of the range hood fan, is the target range hood air volume, is a rated air volume of the range hood fan, is a rated air volume of the range hood fan.

8. A control device for a range hood, characterized by The application relates to a frequency conversion control cabinet applied to a central purification system. A real-time gas flow collecting module is used for collecting the real-time gas flow used by the stove when the stove is ignited; A target running frequency determining module is used for determining the target running frequency of the range hood fan based on the real-time gas flow and preset parameters; wherein the preset parameters include: standard stove power, standard gas flow of the stove, benchmark stove power, standard range hood air volume of the benchmark stove, rated air volume of the range hood fan and the running frequency corresponding to the rated air volume of the range hood fan; A range hood fan control module is used for sending the target running frequency to the range hood, so that the range hood fan runs based on the target running frequency; The target running frequency determining module is used for determining the real-time stove power based on the real-time gas flow, the standard stove power and the standard gas flow of the stove; determining the stove power coefficient based on the real-time stove power and the benchmark stove power; determining the target range hood air volume based on the stove power coefficient and the standard range hood air volume of the benchmark stove; determining the target running frequency of the range hood fan based on the target range hood air volume, the rated air volume of the range hood fan and the running frequency corresponding to the rated air volume of the range hood fan.

9. An electronic device, comprising: The cooking fume exhaust fan comprises a processor and a memory, the memory stores computer executable instructions capable of being executed by the processor, and the processor executes the computer executable instructions to implement the control method of the cooking fume exhaust fan according to any one of claims 1 to 7.

10. A computer-readable storage medium, characterized in that, The computer readable storage medium stores computer executable instructions, and the computer executable instructions, when called and executed by the processor, cause the processor to implement the control method of the cooking fume exhaust fan according to any one of claims 1 to 7.

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