Range hood control method, system and device

Abstract

The present invention provides a range hood control method, system and device, the method comprising: judging whether a target signal is received; if the target signal is received, outputting a first control signal to start the range hood, judging the target signal source that sends the target signal from multiple signal sources before outputting the first control signal; according to the judgment result of the target signal source, outputting the first control signal to start the range hood corresponding to the oil fume absorbing part of the range hood corresponding to the target signal source, judging whether the target signal is received after judging whether the target signal is a interference signal; if so, outputting a second control signal to keep the range hood turned off; if not, outputting the first control signal. Based on the technical solution of the present invention, the range hood can be automatically controlled according to the current scene, and can be operated in a low-cost manner.

Description

Technical Field

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

[0002] At present, the kitchen appliance market has begun to develop in the direction of intelligence. The intelligent linkage between range hoods and stoves is also a major intelligent control direction. The existing technologies mainly include wireless communication solutions and infrared sensor solutions; module wireless communication solution: both the range hood and the stove add wireless communication modules such as radio frequency modules, WIFI modules, or Bluetooth modules to achieve wireless communication between the range hood and the stove, thereby achieving linkage between the range hood and the stove. However, there are disadvantages such as the wireless communication modules of various brands cannot be compatible with each other; infrared sensor solution: an infrared temperature sensor is installed on the range hood to monitor the temperature changes of the stove under the range hood in real time, and use this as a judgment signal to control the range hood to start, thereby achieving linkage between the range hood and the stove. However, the infrared sensor has a high cost due to the long temperature measurement distance of the infrared sensor. Summary of the invention

[0003] In response to the above-mentioned problems in the prior art, the present application proposes a range hood control method, system and device, which can automatically start the range hood according to the current scene.

[0004] A range hood control method of the present invention comprises:

[0005] Determine whether the target signal is received;

[0006] If the target signal is received, a first control signal is output to start the range hood.

[0007] In one embodiment, before outputting the first control signal, the method further includes:

[0008] Determining a target signal source that emits the target signal among a plurality of signal sources;

[0009] According to the judgment result of the target signal source, a first control signal is output to start the oil fume extraction part of the range hood corresponding to the target signal source. Through this embodiment, the range hood can automatically start the corresponding oil fume extraction part according to the activation status of the signal source, thereby saving energy consumption.

[0010] In one embodiment, determining a target signal source that sends the target signal from among a plurality of signal sources includes:

[0011] A first signal receiving point is correspondingly set at each of the signal sources;

[0012] Obtaining the signal strength of the target signal received by all the first signal receiving points and performing a strength comparison;

[0013] According to the comparison result, the target signal source is determined to be the signal source corresponding to the first signal receiving point receiving the maximum signal strength.

[0014] In one embodiment, determining a target signal source that sends the target signal from a plurality of signal sources further includes:

[0015] A second signal receiving point is set in a signal superposition area between two adjacent first signal receiving points, and a distance between the second signal receiving point and any adjacent signal source is greater than a distance between the signal source and its corresponding first signal receiving point;

[0016] Acquire signal strengths of target signals received by the first signal receiving point and the second signal receiving point;

[0017] Determine whether the signal receiving point receiving the maximum signal strength is the first signal receiving point or the second signal receiving point;

[0018] If the signal receiving point receiving the maximum signal strength is the first signal receiving point, determining that the target signal source is the signal source corresponding to the first signal receiving point receiving the maximum signal strength;

[0019] If the signal receiving point receiving the maximum signal strength is the second signal receiving point, the target signal source is determined to be the two adjacent signal sources corresponding to the second signal receiving point receiving the maximum signal strength.

[0020] In one embodiment, after determining whether the target signal is received, the method further includes:

[0021] Determining whether the target signal is an interference signal;

[0022] If yes, output a second control signal to keep the range hood turned off;

[0023] If not, the first control signal is output. Through this implementation, the external interference signal is prevented from affecting the range hood.

[0024] In one embodiment, determining whether the target signal is an interference signal includes:

[0025] Comparing the signal strengths of the target signal received by the first signal receiving point and the second signal receiving point respectively;

[0026] According to the comparison result of the signal strength, it is determined whether the target signal is an interference signal. According to this embodiment, it is determined whether the received target signal is an interference signal according to the signal strength.

[0027] In one embodiment, judging whether the target signal is an interference signal according to the comparison result of the signal strength includes:

[0028] If the comparison result of the signal strength is that the strengths are consistent, it is determined that the target signal is an interference signal;

[0029] If the comparison result of the signal strength is inconsistent, it is determined that the target signal is not an interference signal.

[0030] In one embodiment, the target signal includes an electric field signal, a magnetic field signal or an audio signal. Through this embodiment, the electric field, magnetic field or audio signal generated when the igniter of the stove is ignited is used as the target signal to control the range hood.

[0031] A range hood control system of the present invention comprises:

[0032] A signal receiving module, used for receiving a target signal;

[0033] A signal judgment module is used to judge whether a target signal is received;

[0034] The control module is electrically connected to the signal judgment module and outputs a control signal to control the start and stop of the range hood.

[0035] A range hood control device of the present invention is characterized by comprising:

[0036] A signal receiving component, used for receiving a target signal;

[0037] The main control component is electrically connected to the signal receiving component and outputs a control signal according to the target signal to control the start and stop of the range hood.

[0038] In one embodiment, the range hood control device further includes:

[0039] The signal processing component is used to analyze the target signal received by the signal receiving component and output the analysis result to the main control component. Through this embodiment, the signal processing component is used to determine the strength of the target signal received by each signal receiving point to exclude the target signal as an interference signal and determine the location of the signal source that sends the target signal.

[0040] The above technical features can be combined in various suitable ways or replaced by equivalent technical features as long as the purpose of the present invention can be achieved.

[0041] Compared with the prior art, the range hood control method, system and device provided by the present invention have at least the following beneficial effects:

[0042] (1) Monitor the electric field signal generated by the high-voltage pulse ignition signal when the stove is ignited to determine whether the stove is ignited, thereby controlling the opening of the range hood.

[0043] (2) It can accurately control smoke and operate at a low cost based on the ignition scenario when the stove is actually used. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] The present invention will be described in more detail below based on embodiments and with reference to the accompanying drawings, wherein:

[0045] Figure 1 A flow chart showing one embodiment of the present invention is shown;

[0046] Figure 2 A schematic structural diagram of an embodiment of the present invention is shown;

[0047] Figure 3 A schematic structural diagram of an embodiment of the present invention is shown;

[0048] Figure 4 Shows Figure 2 A local enlarged schematic diagram;

[0049] Figure 5 A schematic diagram of signal reception in one embodiment of the present invention is shown;

[0050] In the drawings, like reference numerals are used for like parts. The drawings are not necessarily to scale.

[0051] Reference numerals:

[0052] 1-stove, 2-ignition needle, 3-range hood, 4-signal receiving device, 5-metal ring wiring, 401-first signal receiving device, 402-second signal receiving device, 403-third signal receiving device. DETAILED DESCRIPTION

[0053] The present invention will be further described below in conjunction with the accompanying drawings.

[0054] The present invention provides a range hood control method, comprising:

[0055] Determine whether the target signal is received;

[0056] If the target signal is received, a first control signal is output to start the range hood.

[0057] In one embodiment, before outputting the first control signal, the method further includes:

[0058] Determining a target signal source that emits the target signal among a plurality of signal sources;

[0059] According to the judgment result of the target signal source, a first control signal is output to start the oil fume suction part of the range hood corresponding to the target signal source, so that the range hood can automatically start the corresponding oil fume suction part according to the start-up status of the signal source, thereby saving energy consumption.

[0060] In one embodiment, determining a target signal source that sends the target signal from among a plurality of signal sources includes:

[0061] A first signal receiving point is correspondingly set at each signal source;

[0062] Obtaining the signal strength of the target signal received by all first signal receiving points and performing a strength comparison;

[0063] According to the comparison result, it is determined that the target signal source is a signal source corresponding to the first signal receiving point receiving the maximum signal strength.

[0064] It should be noted that when any of the multiple signal sources is turned on, the target signal it emits will diffuse outward and weaken with the diffusion distance. That is, the target signal source is judged according to the signal strength of the received target signal, and then the fume extraction part corresponding to the corresponding target signal source is turned on to accurately control smoke.

[0065] In one embodiment, determining a target signal source that sends the target signal from a plurality of signal sources further includes:

[0066] A second signal receiving point is set in the signal superposition area between two adjacent first signal receiving points, and the distance between the second signal receiving point and any adjacent signal source is greater than the distance between the signal source and its corresponding first signal receiving point;

[0067] Acquire signal strengths of target signals received by the first signal receiving point and the second signal receiving point;

[0068] Determine whether the signal receiving point receiving the maximum signal strength is the first signal receiving point or the second signal receiving point;

[0069] If the signal receiving point receiving the maximum signal strength is the first signal receiving point, determining that the target signal source is the signal source corresponding to the first signal receiving point receiving the maximum signal strength;

[0070] If the signal receiving point receiving the maximum signal strength is the second signal receiving point, the target signal sources are determined to be two adjacent signal sources corresponding to the second signal receiving point receiving the maximum signal strength.

[0071] Specifically, Figure 1 as well as Figure 2As shown, a second signal receiving point is set in a signal superposition area between two adjacent first signal receiving points; the first signal receiving point and the second signal receiving point are evenly distributed, that is, the second signal receiving point is located in the signal superposition area between two adjacent first signal receiving points, and the distance between the second signal receiving point and any adjacent signal source is greater than the distance between the signal source and the first signal receiving point corresponding to it; when the signal receiving point receiving the maximum signal strength is the first signal receiving point, the target signal source is judged to be the signal source corresponding to the first signal receiving point.

[0072] Specifically, Figure 1 as well as Figure 2 As shown, the metal plate 1 and the metal plate 3 are the first signal receiving points corresponding to the left stove and the right stove respectively, the metal plate 2 is arranged in the signal superposition area between the metal plate 1 and the metal plate 3, and the distance from the metal plate 2 to the left stove or to the right stove is greater than the distance from the metal plate 1 or the metal plate 3 to the corresponding stove;

[0073] When the signal strength received by metal plate 1 is greater than the signal strength received by metal plate 2, and the signal strength received by metal plate 2 is greater than the signal strength received by metal plate 3, the signal strength received by metal plate 1 is the largest, that is, the signal strength received by the first signal receiving point is the largest, and the target signal source is determined to be the left stove corresponding to metal plate 1;

[0074] When the signal strength received by metal plate 3 is greater than the signal strength received by metal plate 2, and the signal strength received by metal plate 2 is greater than the signal strength received by metal plate 1, the signal strength received by metal plate 3 is the largest, that is, the signal strength received by the first signal receiving point is the largest, and the target signal source is determined to be the right stove corresponding to metal plate 3;

[0075] When the intensity of the target signal received by metal plate 2 is greater than the intensity of the target signal received by metal plate 1 and metal plate 3, since metal plate 2 is located in the signal superposition area between metal plate 1 and metal plate 3, it means that the left stove and the right stove adjacent to metal plate 2 are turned on at the same time.

[0076] It should be noted that, on the one hand, when the left and right stoves are turned on at the same time, the superimposed signal strength received at any position in the signal superposition area between two adjacent first signal receiving points is greater than the signal strength received by the first signal receiving point; on the other hand, when there are multiple signal sources, that is, multiple stoves, considering manual ignition, it is almost impossible to turn on three or more stoves at the same time. The recognition speed of the signal strength comparison method is in milliseconds. Even if multiple people perform ignition operations at the same time, it is difficult to achieve millisecond synchronization, that is, to be able to determine two stoves that are turned on at the same time among multiple signal sources, and then turn on the corresponding fume extraction part.

[0077] In one embodiment, after determining whether the target signal is received, the method further includes:

[0078] Determining whether the target signal is an interference signal;

[0079] If yes, output a second control signal to keep the range hood turned off;

[0080] If not, the first control signal is output to prevent the range hood from being affected by external interference signals.

[0081] In one embodiment, determining whether the target signal is an interference signal includes:

[0082] Comparing the signal strengths of the target signal received by the first signal receiving point and the second signal receiving point respectively;

[0083] According to the comparison result of the signal strength, it is determined whether the target signal is an interference signal, and according to the signal strength, it is determined whether the received target signal is an interference signal.

[0084] In one embodiment, judging whether the target signal is an interference signal according to the comparison result of the signal strength includes:

[0085] If the comparison result of the signal strength is that the strengths are consistent, it is determined that the target signal is an interference signal;

[0086] If the comparison result of the signal strength is inconsistent, it is determined that the target signal is not an interference signal.

[0087] It should be noted that if Figure 1 as well as Figure 2 As shown, due to the existence of a parallel uniform electric field such as parallel light of sunlight in the environment, when a uniform electric field is received, that is, the signal strengths received by the first signal receiving point and the second signal receiving point are the same, it is judged as an interference signal, and the range hood is kept turned off; if the left stove or the right stove is turned on, or when both stoves are turned on at the same time, the signal strengths received by the first signal receiving point and the second signal receiving point are different, then it is judged that the received target signal is not an interference signal.

[0088] In one embodiment, the target signal includes an electric field signal, a magnetic field signal or an audio signal, and the electric field, magnetic field or audio signal generated when the igniter of the cooker is ignited is used as the target signal to control the range hood.

[0089] In one embodiment, Figure 1 As shown, the range hood control method is as follows:

[0090] Receive the high-voltage pulse electric field signal emitted by the ignition needle of the stove when it ignites;

[0091] Determine whether the strengths of the first signal receiving point, the second signal receiving point, and the third signal receiving point are consistent;

[0092] If they are consistent, the received signal is output as external interference and the range hood does not respond;

[0093] If they are inconsistent, comparing the signal strengths of the first signal receiving point, the second signal receiving point, and the third signal receiving point;

[0094] If the second signal receiving point has the highest strength, the smoke absorbing parts of the range hood corresponding to the two signal sources are started;

[0095] If the target signal strength received by the first signal receiving point or the third signal receiving point is the highest, the fume absorbing part of the range hood corresponding to the first signal source or the third signal source is started.

[0096] The present invention also provides a range hood control system, comprising:

[0097] A signal receiving module, used for receiving a target signal;

[0098] A signal judgment module is used to judge whether a target signal is received;

[0099] The control module is electrically connected to the signal judgment module and outputs a control signal to control the start and stop of the range hood.

[0100] The present invention also provides a range hood control device, which is characterized by comprising:

[0101] A signal receiving component, used for receiving a target signal;

[0102] The main control component is electrically connected to the signal receiving component, and outputs a control signal according to the target signal to control the start and stop of the range hood 3.

[0103] In one embodiment, the range hood control device further includes:

[0104] The signal processing component is used to analyze the target signal received by the signal receiving component and output the analysis result to the main control component. The signal processing component is used to determine the strength of the target signal received by each signal receiving point to exclude the target signal as an interference signal and determine the location of the signal source that sends the target signal.

[0105] In one embodiment, a target signal emitted when the ignition needle 2 of the stove 1 is ignited is obtained.

[0106] In one embodiment, the cooker includes at least two cooktops, the plurality of cooktops are evenly distributed, and the signal receiving component includes a plurality of signal receiving devices.

[0107] Specifically, the multiple signal receiving devices include a first type of signal receiving device arranged corresponding to the position of each stove, and a second type of signal receiving device is arranged in the signal superposition area between two adjacent first type of signal receiving devices, and the distance between the second type of signal receiving device and any adjacent stove is greater than the distance between the stove and its corresponding first type of signal receiving device.

[0108] It should be noted that the signal strengths of all target signals received by the first type signal receiving device and the second type signal receiving device are obtained, and the signal strengths of all target signals are compared;

[0109] Determine whether the signal receiving device that receives the maximum signal strength is a first-category signal receiving device or a second-category signal receiving device;

[0110] If the signal receiving device that receives the maximum signal strength is a first-type signal receiving device, it is determined that the target signal is emitted by the stove corresponding to the first-type signal receiving device that receives the maximum signal strength;

[0111] If the signal receiving device that receives the maximum signal strength is a second-type signal receiving device, it is determined that the target signal is emitted by two adjacent stoves corresponding to the second-type signal receiving device that receives the maximum signal strength;

[0112] According to the judgment result, open the oil fume cavity corresponding to the stove.

[0113] It needs to be further explained that when there are multiple signal sources, that is, multiple stoves, considering manual ignition, it is almost impossible to turn on three or more stoves at the same time. The identification speed of the signal strength comparison method is in milliseconds. Even if multiple people perform ignition operations at the same time, it is difficult to achieve millisecond-level synchronization.

[0114] In one embodiment, Figure 2 As shown, the stove includes a first stove and a second stove, the signal receiving device 4 includes a first signal receiving device 401, a second signal receiving device 402 and a third signal receiving device 403, the signal receiving device 4 is installed on the cover of the range hood 3 and on the side close to the stove 1, and the first signal receiving device 401, the second signal receiving device 402 and the third signal receiving device 403 are evenly distributed.

[0115] It should be noted that, when the target signal strength received by the first signal receiving device 401 is greater than the target signal strength received by the second signal receiving device 402, the ignition pin 2 of the first stove ignites, and the oil fume chamber corresponding to the first stove on the range hood 3 is opened; when the target signal strength received by the first signal receiving device 401 is less than the target signal strength received by the second signal receiving device 402, the ignition pin 2 of the second stove ignites, and the oil fume chamber corresponding to the second stove on the range hood 3 is opened; when the target signal strength received by the first signal receiving device 401 is equal to the target signal strength received by the second signal receiving device 402, the ignition pins 2 of the first stove and the second stove ignite at the same time, and the two oil fume chambers on the range hood 3 are opened at the same time.

[0116] Furthermore, considering the existence of a parallel uniform electric field such as parallel light of sunlight in the environment, when a uniform electric field is received, the signal strengths received by the first signal receiving device 401 and the second signal receiving device 402 are consistent, but at this time no stove is ignited, that is, the interference signal needs to be eliminated; because the third signal receiving device 403 arranged between the first signal receiving device 401 and the second signal receiving device 402 receives a signal strength different from the target signal strength received by the first signal receiving device 401 and the second signal receiving device 402 when the two stoves are ignited at the same time; if the target signal strengths received by the first signal receiving device 401, the second signal receiving device 402 and the third signal receiving device 403 are consistent, it is determined that the received target signal is an interference signal.

[0117] In one embodiment, Figure 3 As shown, the signal receiving device 4 is installed in the cover of the range hood 3.

[0118] In one embodiment, Figure 4 As shown, the signal receiving device 4 has a built-in metal ring wiring 5, and the material of the metal ring wiring 5 can be a metal material with low conductivity such as copper, aluminum, gold, silver, etc.

[0119] In one embodiment, the metal loop wiring 5 may also be in a loop shape such as a square, a circle, a diamond, an ellipse, or an irregular pattern.

[0120] In one embodiment, Figure 5 As shown, the electric field signal received by the metal plate = the area of ​​the built-in metal wiring loop S / (the distance L between the location where the metal plate is placed and the ignition needle of the stove*the conductivity σ of the metal material).

[0121] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "bottom", "top", "front", "back", "inside", "outside", "left", "right", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying 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 a limitation on the present invention.

[0122] Although the present invention is described herein with reference to specific embodiments, it should be understood that these embodiments are merely examples of the principles and applications of the present invention. It should therefore be understood that many modifications may be made to the exemplary embodiments and that other arrangements may be devised without departing from the spirit and scope of the present invention as defined by the appended claims. It should be understood that the various dependent claims and features described herein may be combined in a manner different from that described in the original claims. It should also be understood that features described in conjunction with individual embodiments may be used in other described embodiments.

Claims

1. A range hood control method, characterized in that: include: Determine whether the target signal is received; If the target signal is received, a first control signal is output to start the range hood; Before outputting the first control signal, the method further includes: Determining a target signal source that emits the target signal among a plurality of signal sources; Outputting a first control signal according to the determination result of the target signal source to start the fume absorbing part of the range hood corresponding to the target signal source; Determining a target signal source that sends the target signal from among a plurality of signal sources comprises: A first signal receiving point is correspondingly set at each of the signal sources; Obtaining the signal strength of the target signal received by all the first signal receiving points and performing a strength comparison; Also includes: A second signal receiving point is set in a signal superposition area between two adjacent first signal receiving points, and a distance between the second signal receiving point and any adjacent signal source is greater than a distance between the signal source and its corresponding first signal receiving point; Acquire signal strengths of target signals received by the first signal receiving point and the second signal receiving point; Determine whether the signal receiving point receiving the maximum signal strength is the first signal receiving point or the second signal receiving point; If the signal receiving point receiving the maximum signal strength is the first signal receiving point, determining that the target signal source is the signal source corresponding to the first signal receiving point receiving the maximum signal strength; If the signal receiving point receiving the maximum signal strength is the second signal receiving point, the target signal source is determined to be the two adjacent signal sources corresponding to the second signal receiving point receiving the maximum signal strength.

2. The range hood control method according to claim 1, characterized in that: After determining whether the target signal is received, it also includes: Determining whether the target signal is an interference signal; If yes, output a second control signal to keep the range hood turned off; If not, the first control signal is output.

3. The range hood control method according to claim 2, characterized in that: Determining whether the target signal is an interference signal includes: Comparing the signal strengths of the target signal received by the first signal receiving point and the second signal receiving point respectively; According to the comparison result of the signal strength, it is determined whether the target signal is an interference signal.

4. The range hood control method according to claim 3, characterized in that: Judging whether the target signal is an interference signal according to the comparison result of the signal strength includes: If the comparison result of the signal strength is that the strengths are consistent, it is determined that the target signal is an interference signal; If the comparison result of the signal strength is inconsistent, it is determined that the target signal is not an interference signal.

5. The range hood control method according to any one of claims 1 to 4, characterized in that: The target signal includes an electric field signal, a magnetic field signal or an audio signal.

6. A range hood control system, characterized in that: include: A signal receiving module, used for receiving a target signal; A signal judgment module is used to judge whether a target signal is received; A control module is electrically connected to the signal judgment module and outputs a control signal to control the start and stop of the range hood. Before outputting the first control signal, it also includes: Determining a target signal source that emits the target signal among a plurality of signal sources; According to the determination result of the target signal source, outputting a first control signal to start the fume absorbing part of the range hood corresponding to the target signal source; Determining a target signal source that sends the target signal from among a plurality of signal sources comprises: A first signal receiving point is correspondingly set at each of the signal sources; Obtaining the signal strength of the target signal received by all the first signal receiving points and performing a strength comparison; Also includes: A second signal receiving point is set in a signal superposition area between two adjacent first signal receiving points, and a distance between the second signal receiving point and any adjacent signal source is greater than a distance between the signal source and its corresponding first signal receiving point; Acquire signal strengths of target signals received by the first signal receiving point and the second signal receiving point; Determine whether the signal receiving point receiving the maximum signal strength is the first signal receiving point or the second signal receiving point; If the signal receiving point receiving the maximum signal strength is the first signal receiving point, determining that the target signal source is the signal source corresponding to the first signal receiving point receiving the maximum signal strength; If the signal receiving point receiving the maximum signal strength is the second signal receiving point, the target signal source is determined to be the two adjacent signal sources corresponding to the second signal receiving point receiving the maximum signal strength.

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