CN112902243B - Smoke stove linkage control method, range hood and smoke stove linkage control system - Google Patents
Smoke stove linkage control method, range hood and smoke stove linkage control system Download PDFInfo
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- CN112902243B CN112902243B CN202110068253.2A CN202110068253A CN112902243B CN 112902243 B CN112902243 B CN 112902243B CN 202110068253 A CN202110068253 A CN 202110068253A CN 112902243 B CN112902243 B CN 112902243B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C15/00—Details
- F24C15/20—Removing cooking fumes
- F24C15/2021—Arrangement or mounting of control or safety systems
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C15/00—Details
- F24C15/20—Removing cooking fumes
- F24C15/2042—Devices for removing cooking fumes structurally associated with a cooking range e.g. downdraft
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C3/00—Stoves or ranges for gaseous fuels
- F24C3/12—Arrangement or mounting of control or safety devices
- F24C3/126—Arrangement or mounting of control or safety devices on ranges
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers
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Abstract
The invention relates to a smoke stove linkage control method, a range hood and a smoke stove linkage control system, wherein the smoke stove linkage control method controls a fan to start or stop running by comprehensive judgment processing according to an external environment gas concentration value of the range hood, a gas concentration value in an exhaust channel of the range hood, a working temperature value of a stove and a fan running state, realizes comprehensive judgment from three aspects of an internal gas concentration value and an external gas concentration value of the range hood, a fan running state and a stove working temperature value to obtain a control instruction for judging whether the fan is started or not, improves the accuracy of the fan running control instruction and the timeliness of controlling the fan running work, and avoids the unreliability of judging whether the fan runs or not depending on the working temperature of the stove alone in the traditional smoke stove linkage method.
Description
Technical Field
The invention relates to the field of kitchen electrical equipment, in particular to a smoke stove linkage control method, a range hood and a smoke stove linkage control system.
Background
In the traditional cooking process, the range hood is usually opened or closed manually, but the manual control of the range hood cannot keep up with the cooking range state and the instant change of the oil smoke environment in a kitchen, so that the opening of the range hood is delayed, and a good oil smoke removing effect cannot be achieved. In order to simplify the user operation and improve the oil smoke removal effect, more and more smoke stove linkage control schemes for realizing the linkage control of the range hood and the stove are proposed by various kitchen electrical equipment manufacturers in succession.
Chinese utility model patent CN209295203U discloses a smoke range linkage device, which comprises a kitchen range state detection device and a smoke ventilator control device which can be used in a matched manner, wherein the kitchen range state detection device comprises a shell and a control system arranged in the shell, the shell comprises an upper cover, a filtering window and a lower cover which are sequentially assembled and connected into a whole from top to bottom, a light path structure for reflecting light entering the filtering window and a control system for controlling the work of the stove state detection device are arranged in the shell, the control system of the cooker state detection device also comprises a power supply, an air quality sensor, an optical temperature sensor, a signal emission device and a control panel, wherein the control panel is respectively in electrical signal connection with the power supply, the air quality sensor, the optical temperature sensor and the signal emission device, and the air quality sensor is used for detecting the change of ambient air around the cooker; the optical temperature measuring sensor is used for collecting light rays radiated by flame of the stove after being reflected by the light path structure and outputting digital signals of the temperature corresponding to the light rays, and the optical temperature measuring sensor is an infrared temperature measuring sensor capable of collecting infrared rays radiated by the flame of the stove so as to achieve the purpose of accurately detecting the heat radiation temperature of the flame; the signal transmitting device is used for transmitting signals of the cooker state detection device and is in combined communication with the receiving device on the range hood, so that the wireless communication function between the cooker state detection device and the range hood is realized; the main control board analyzes data output by the optical temperature measuring sensor and the air quality sensor and sends corresponding cooking utensil state signals to the range hood through the signal transmitting device.
However, the smoke range linkage scheme in the utility model patent CN209295203U also has some disadvantages: because the kitchen range works in the complex environment such as a kitchen, the accuracy of determining the working temperature of the kitchen range by relying on the light radiated by the flame of the kitchen range alone is reduced due to the interference of factors such as airflow movement, user movement, indoor environment temperature, air humidity and the like in the complex kitchen environment, and the actual working state of the kitchen range is difficult to be directly and accurately determined by the determined working temperature of the kitchen range, so that the linkage reliability of the whole smoke stove linkage device during working is further reduced.
Disclosure of Invention
The first technical problem to be solved by the present invention is to provide a smoke stove linkage control method aiming at the above prior art.
The second technical problem to be solved by the invention is to provide a range hood which is matched with the smoke stove linkage control method.
The third technical problem to be solved by the invention is to provide a smoke stove linkage control system with the range hood.
The technical scheme adopted by the invention for solving the first technical problem is as follows: the smoke stove linkage control method is characterized by comprising the following steps:
step a, acquiring an external environment gas concentration value of the range hood;
step b, acquiring a gas concentration value in an air exhaust channel of the range hood;
step c, acquiring the working temperature value of the stove;
d, detecting the running state of a fan of the range hood;
and e, controlling the fan of the range hood to start or stop running according to the external environment gas concentration value, the gas concentration value in the exhaust channel, the working temperature value of the kitchen range and the running state of the fan of the range hood.
In the smoke stove linkage control method, the fan is controlled to start or stop running by comprehensive judgment processing according to the external environment gas concentration value of the range hood, the gas concentration value in the exhaust channel of the range hood, the working temperature value of the stove and the running state of the fan, so that the comprehensive treatment and judgment from the internal and external gas concentration value of the range hood, the running state of the fan and the working temperature value of the stove are realized, a control instruction for judging whether the fan is started or not is obtained, the accuracy of the fan running control instruction and the timeliness of controlling the running and the working of the fan are improved, and the unreliability that the traditional smoke stove linkage method depends on the working temperature of the stove alone to judge whether the fan is controlled to run or not is avoided.
Specifically, in the smoke and fire range linkage control method, in the step c, the working temperature of the stove can be obtained by detecting infrared rays radiated by flame of the stove or by detecting the stove in a thermosensitive manner.
In addition, specifically, in step e of the present invention, the fan of the range hood is controlled to start or stop according to the external environment gas concentration value, the gas concentration value in the exhaust channel, the working temperature of the kitchen range and the fan operating state of the range hood in the following steps S1 to S10:
step S1, judging according to the running state of the fan:
when the running state of the fan is not started, the step S2 is carried out; otherwise, go to step S6;
step S2, judging the current working state of the cooker:
when the current working state of the cooker is judged to be possible to be closed, the step S3 is carried out; otherwise, go to step S8; when the working temperature of the cooker continuously drops, judging that the current working state of the cooker is possibly closed;
step S3, judging according to the acquired external environment gas concentration value of the range hood:
when the concentration value of the external environment gas of the range hood rises, judging that the current working state of the kitchen range is possibly opened, and turning to the step S4; otherwise, after acquiring the external environment gas concentration value of the range hood and the gas concentration value in the exhaust channel of the range hood again, the step S1 is executed;
step S4, starting timing for the waiting confirmation duration of the working state of the cooker, and making judgment processing according to the timing result of the waiting confirmation duration of the working state of the cooker:
when the waiting confirmation duration of the working state of the kitchen range exceeds the preset duration, judging that the current working state of the kitchen range is recovered to be the closed state, resetting the timing result of the waiting confirmation duration of the working state of the kitchen range at present, acquiring the concentration value of the external environment gas of the range hood and the concentration value of the gas in the exhaust channel of the range hood again, and then switching to the step S1; otherwise, go to step S5;
step S5, judging according to the acquired working temperature of the cooker:
when the working temperature of the kitchen range continuously rises, judging that the current working state of the kitchen range is open, controlling a fan of the range hood to start and operate, acquiring the concentration value of the external environment gas of the range hood and the concentration value of the gas in an exhaust channel of the range hood again, and then switching to the step S1; otherwise, after acquiring the external environment gas concentration value of the range hood and the gas concentration value in the exhaust channel of the range hood again, the step S1 is executed;
step S6, judging the current working state of the cooker:
when the current working state of the cooker is judged to be possible to be opened, the step S7 is carried out; otherwise, go to step S8; when the concentration value of the external environment gas of the range hood rises, judging that the current working state of the cooker is possibly opened;
step S7, judging according to the acquired working temperature of the cooker:
when the working temperature of the cooker continuously drops, judging that the current working state of the cooker is possibly closed, and turning to the step S8; otherwise, after acquiring the external environment gas concentration value of the range hood and the gas concentration value in the exhaust channel of the range hood again, the step S1 is executed;
step S8, starting timing for the waiting confirmation duration of the working state of the cooker, and making judgment processing according to the timing result of the waiting confirmation duration of the working state of the cooker:
when the waiting confirmation duration of the working state of the kitchen range exceeds the preset duration, judging that the current working state of the kitchen range is recovered to be the open state, resetting the timing result of the waiting confirmation duration of the working state of the kitchen range at present, acquiring the concentration value of the external environment gas of the range hood and the concentration value of the gas in the exhaust channel of the range hood again, and then switching to the step S1; otherwise, go to step S9;
step S9, acquiring the current external environment gas concentration value of the range hood and the current air exhaust channel gas concentration value of the range hood, and turning to step S10;
step S10, according to the acquired current external environment gas concentration value of the range hood and the current gas concentration value in the exhaust channel, judging and processing:
when the gas concentration difference value between the current external environment gas concentration value and the current air exhaust channel gas concentration value is smaller than the preset gas concentration difference value, judging that the working state of the cooker is closed, controlling a fan of the range hood to stop running, and after the external environment gas concentration value of the range hood and the gas concentration value in the air exhaust channel of the range hood are obtained again, turning to the step S1; otherwise, after the external environment gas concentration value of the range hood and the gas concentration value in the exhaust channel of the range hood are obtained again, the step S1 is executed.
The smoke stove linkage method can judge whether the working state of the stove is possibly closed or opened by using the detected working temperature of the stove through executing the steps S1-S10, and then further accurately judge the working state of the stove through the acquired gas concentration value in the air exhaust channel of the range hood, so that the accurate judgment of the working state of the stove is ensured, the timeliness of the fan of the range hood when responding to the working state of the stove is improved, and the good working state of a device for acquiring the gas concentration value in the air exhaust channel can be well protected. Moreover, in the traditional smoke stove linkage method, when the working state of the kitchen range is judged only by depending on the working temperature of the kitchen range and then whether the fan of the range hood is controlled to operate is determined, a longer time is often set for judging the variation trend of the working temperature of the kitchen range in order to ensure the reliability of a judgment result, and the timeliness of the response of the fan of the range hood to the working state of the kitchen range is inevitably reduced. Different from the traditional smoke stove linkage method, the invention increases two reference factors of the concentration value of the external environment gas of the range hood, the concentration value of the gas in the exhaust channel of the range hood and the detection result of the running state of the fan on the basis of taking the working temperature of the original range as the reference factor, so that the change trend of the working temperature of the range hood is not needed to be judged for a long time, the fan of the range hood can be timely determined whether to be controlled to run or not only by setting a short time and combining comprehensive judgment aiming at other three reference factors, and the timeliness of the response of the fan of the range hood to the working state of the range hood is effectively improved.
In step S3, when the continuous rising time of the acquired external ambient gas concentration value of the range hood is longer than the first preset time value, it is determined that the external ambient gas concentration value of the range hood is rising.
Similarly, in step S5, when the continuous rising time of the acquired operating temperature of the cooker is greater than a second preset time value, determining that the operating temperature of the cooker continuously rises; and in step S7, when the continuous falling time of the acquired working temperature of the cooker is larger than a third preset time value, judging that the working temperature of the cooker continuously falls.
The technical scheme adopted by the invention for solving the second technical problem is as follows: the range hood that cooperation was realized smoke and kitchen coordinated control method, including the fan, its characterized in that still includes:
the gas detection device is used for detecting the concentration value of the external environment gas of the range hood and the concentration value of the gas in the exhaust channel of the range hood;
the temperature detection device is used for detecting the working temperature of the cooker;
the fan state detection device is used for detecting the running state of the fan;
and the controller is respectively connected with the fan, the gas detection device, the temperature detection device and the fan state detection device and controls the fan to start or stop running according to detection data of the gas detection device, the temperature detection device and the fan state detection device.
The range hood can control whether the fan is started or not in time by detecting the working temperature of the kitchen range, the external environment gas concentration value of the range hood, the gas concentration value in the exhaust channel of the range hood and the running state of the fan, so as to respond to the working state of the kitchen range timely and accurately, and improve the accuracy and the linkage response speed of the smoke stove in linkage control.
In order to obtain the external environment gas concentration value and the gas concentration value in the exhaust channel of the range hood accurately, the range hood further comprises a valve for controlling whether the exhaust channel of the range hood is communicated with the external environment or not, and the valve is connected with the controller. That is to say, the controller can control the valve to open, so that the exhaust channel inside the range hood is communicated with the external environment of the range hood, and the gas detection device detects the external environment gas concentration value of the range hood; and when controller control valve closed, make the inside exhaust passage of range hood and range hood's external environment cut off the intercommunication to gas detection device can only detect the interior gas concentration value of range hood's the exhaust passage this moment, can not mix range hood's external environment gas concentration value, and such gas concentration testing result is more accurate.
The technical scheme adopted by the invention for solving the third technical problem is as follows: the smoke stove linkage control system for realizing the smoke stove linkage control method comprises the following steps:
a range hood having a fan;
a cooker;
it is characterized by also comprising:
the temperature detection device is used for detecting the working temperature of the cooker;
the fan state detection device is arranged on the range hood and is used for detecting the running state of the fan;
the gas detection device is arranged on the range hood and is used for detecting the concentration value of the external environment gas of the range hood and the concentration value of the gas in the exhaust channel of the range hood;
and the controller is respectively connected with the fan, the temperature detection device, the fan state detection device and the gas detection device, and controls the fan to start or stop running according to detection data of the gas detection device, the temperature detection device and the fan state detection device.
In the smoke stove linkage control system, the controller is used for processing the data detected by the temperature detection device, the gas detection device and the fan state detection device so as to control the fan of the range hood to start or stop running, the requirement of the range hood for timely and accurately responding to the working state of a stove is met, and the effects of improving the accuracy and the linkage response speed in smoke stove linkage control are realized.
In the smoke range linkage control system, the controller is connected with the temperature detection device and the gas detection device in a wireless communication or wired communication mode.
In the smoke range linkage control system according to the present invention, the temperature detection device may be an infrared temperature sensor or a thermosensitive temperature sensor. When the temperature detection device adopts the thermosensitive temperature sensor, the traditional smoke stove linkage method can be effectively prevented from being easily interfered by factors such as airflow movement, user movement, indoor environment temperature, air humidity and the like in a kitchen environment due to the adoption of the infrared temperature sensor, and the accuracy of the stove working temperature detected based on the thermosensitive temperature sensor is further realized.
In addition, in the actual setting of the smoke stove linkage control system, the setting positions of the temperature detection device and the controller can be selected according to the actual situation. For example:
in a first practical situation of the above-mentioned smoke and range linkage control system, the temperature detection device may be arranged on the range hood, and the controller is also arranged on the range hood, so as to implement detection and execution by the range hood itself, and achieve timely and accurate response of the range hood to the working state of the kitchen range.
In the second practical situation of the above-mentioned smoke and fume stove linkage control system, the temperature detection device can be arranged on the kitchen range, and the controller is also arranged on the kitchen range, so that the kitchen range can detect the working temperature and comprehensively process and judge the detection data of the gas detection device, the temperature detection device and the fan state detection device through the kitchen range, a control instruction for the fan of the range hood to execute is formed, and the range hood can accurately respond to the working state of the kitchen range in time.
In a third practical situation of the above-mentioned smoke and oven linkage control system, the temperature detection device can be set independently of the range hood and the oven, and the controller is also set independently of the range hood and the oven, so that the controller which is set independently can comprehensively process and judge the detection data of the gas detection device, the temperature detection device and the fan state detection device, and a control instruction for the fan of the range hood to execute is formed, and the range hood can be commanded to make timely and accurate response to the operating state of the oven.
Compared with the prior art, the invention has the advantages that: according to the smoke stove linkage control scheme, the fan is controlled to start or stop running by comprehensive judgment processing according to the external environment gas concentration value of the range hood, the gas concentration value in the exhaust channel of the range hood, the working temperature value of the stove and the running state of the fan, comprehensive treatment and judgment are realized from the three aspects of the internal and external gas concentration value of the range hood, the running state of the fan and the working temperature value of the stove, so that a control instruction for judging whether the fan is started or not is obtained, the accuracy of the fan running control instruction and the timeliness of controlling the running work of the fan are improved, and the unreliability that the traditional smoke stove linkage method depends on the working temperature of the stove alone to judge whether the fan is controlled to run is avoided.
Drawings
FIG. 1 is a schematic flow chart of a smoke range linkage control method in an embodiment of the present invention;
FIG. 2 is a schematic connection diagram of the main components of the range hood according to the embodiment of the present invention;
fig. 3 is a schematic diagram of a smoke range linkage control system in the embodiment of the invention.
Detailed Description
The invention is described in further detail below with reference to the accompanying examples.
The embodiment provides a smoke stove linkage control method for realizing linkage of a range hood and a kitchen range in a kitchen. Specifically, referring to fig. 1, the smoke range linkage control method of the embodiment includes the steps of:
step a, acquiring an external environment gas concentration value of the range hood;
step b, acquiring a gas concentration value in an air exhaust channel of the range hood;
step c, acquiring the working temperature value of the stove; the working temperature of the cooker can be obtained by detecting infrared rays radiated by flame of the cooker or by means of thermosensitive detection of the cooker, and preferably by means of thermosensitive detection of the cooker;
d, detecting the running state of a fan of the range hood;
and e, controlling the fan of the range hood to start or stop running according to the external environment gas concentration value, the gas concentration value in the exhaust channel, the working temperature value of the stove and the running state of the fan of the range hood. In the embodiment, the starting operation or the stopping operation of the fan of the range hood is controlled according to the following steps of S1-S10:
step S1, judging according to the running state of the fan:
when the running state of the fan is not started, the step S2 is carried out; otherwise, go to step S6;
step S2, judging the current working state of the cooker:
when the current working state of the cooker is judged to be possible to be closed, the step S3 is carried out; otherwise, go to step S8; when the working temperature of the cooker continuously drops, judging that the current working state of the cooker is possibly closed;
step S3, judging according to the acquired external environment gas concentration value of the range hood:
when the concentration value of the external environment gas of the range hood rises, judging that the current working state of the kitchen range is possibly opened, and turning to the step S4; otherwise, after the external environment gas concentration value of the range hood and the gas concentration value in the exhaust channel of the range hood are obtained again, the step S1 is executed; when the continuous rising time of the obtained external environment gas concentration value of the range hood is greater than a first preset time value, for example, the first preset time value is set to be greater than 5s, it is determined that the external environment gas concentration value of the range hood rises;
step S4, starting timing for the time length of the stove working state waiting confirmation, and making judgment processing according to the timing result of the time length of the stove working state waiting confirmation:
when the waiting confirmation duration of the working state of the kitchen range exceeds the preset duration, judging that the current working state of the kitchen range is recovered to be the closed state, resetting the timing result of the waiting confirmation duration of the working state of the kitchen range at present, acquiring the concentration value of the external environment gas of the range hood and the concentration value of the gas in the exhaust channel of the range hood again, and then switching to the step S1; otherwise, go to step S5;
step S5, judging according to the acquired working temperature of the cooker:
when the working temperature of the kitchen range continuously rises, judging that the current working state of the kitchen range is open, controlling a fan of the range hood to start and operate, acquiring the concentration value of the external environment gas of the range hood and the concentration value of the gas in an exhaust channel of the range hood again, and then switching to the step S1; otherwise, after acquiring the external environment gas concentration value of the range hood and the gas concentration value in the exhaust channel of the range hood again, the step S1 is executed; when the continuous rising time of the acquired working temperature of the cooker is greater than a second preset time value, for example, the second preset time value is set to be greater than 1s and less than 30s, the working temperature of the cooker is judged to continuously rise;
step S6, judging the current working state of the cooker:
when the current working state of the cooker is judged to be possible to be opened, the step S7 is carried out; otherwise, go to step S8; when the concentration value of the external environment gas of the range hood rises, judging that the current working state of the cooker is possibly opened;
step S7, judging according to the acquired working temperature of the cooker:
when the working temperature of the cooker continuously drops, judging that the current working state of the cooker is possibly closed, and turning to the step S8; otherwise, after the external environment gas concentration value of the range hood and the gas concentration value in the exhaust channel of the range hood are obtained again, the step S1 is executed; when the continuous falling time of the acquired working temperature of the cooker is greater than a third preset time value, for example, the third preset time value is greater than 5s and less than 120s, the continuous falling of the working temperature of the cooker is judged;
step S8, starting timing for the waiting confirmation duration of the working state of the cooker, and making judgment processing according to the timing result of the waiting confirmation duration of the working state of the cooker:
when the waiting confirmation duration of the working state of the kitchen range exceeds the preset duration, judging that the current working state of the kitchen range is recovered to be the open state, resetting the timing result of the waiting confirmation duration of the working state of the kitchen range at present, acquiring the concentration value of the external environment gas of the range hood and the concentration value of the gas in the exhaust channel of the range hood again, and then switching to the step S1; otherwise, go to step S9;
step S9, acquiring the current external environment gas concentration value of the range hood and the current air exhaust channel gas concentration value of the range hood, and turning to step S10;
step S10, according to the acquired current external environment gas concentration value of the range hood and the current gas concentration value in the exhaust channel, judging and processing:
when the gas concentration difference value between the current external environment gas concentration value and the current air exhaust channel gas concentration value is smaller than the preset gas concentration difference value, judging that the working state of the cooker is closed, controlling a fan of the range hood to stop running, and after the external environment gas concentration value of the range hood and the gas concentration value in the air exhaust channel of the range hood are obtained again, turning to the step S1; otherwise, after the external environment gas concentration value of the range hood and the gas concentration value in the exhaust channel of the range hood are obtained again, the step S1 is executed.
In the smoke and stove linkage control method of the embodiment, the fan is controlled to start or stop running by comprehensive judgment processing according to the external environment gas concentration value of the range hood, the gas concentration value in the exhaust channel of the range hood, the working temperature value of the stove and the running state of the fan, so that comprehensive treatment and judgment are realized from the internal and external gas concentration value of the range hood, the running state of the fan and the working temperature value of the stove, a control instruction for judging whether the fan is started or not is obtained, the accuracy of the fan running control instruction and the timeliness of controlling the running work of the fan are improved, and the unreliability that the traditional smoke and stove linkage method depends on the working temperature of the stove alone to judge whether the fan is controlled to run or not is avoided.
The embodiment also provides a range hood matched with the smoke stove linkage control method. Specifically, referring to fig. 2, the range hood includes:
the air-moving device (11) is provided with a fan,
the gas detection device 12 is used for detecting the concentration value of the external environment gas of the range hood and the concentration value of the gas in the exhaust channel of the range hood;
a temperature detection device 13 for detecting the working temperature of the cooker, wherein the temperature detection device 13 adopts an infrared temperature sensor or a heat-sensitive temperature sensor, and preferably adopts a heat-sensitive temperature sensor;
a fan state detection device 14 for detecting the fan operation state;
and the controller 15 is respectively connected with the fan 11, the gas detection device 12, the temperature detection device 13 and the fan state detection device 14, and controls the fan 11 to start or stop running according to detection data of the gas detection device 12, the temperature detection device 13 and the fan state detection device 14.
Certainly, in order to obtain the external environment gas concentration value and the gas concentration value in the exhaust channel of the range hood accurately, the range hood further includes a valve 16 for controlling whether the exhaust channel of the range hood is communicated with the external environment, and the valve 16 is connected to the controller 15. That is to say, the controller 15 can control the valve 16 to open, so that the exhaust channel inside the range hood is communicated with the external environment of the range hood, and the gas detection device detects the external environment gas concentration value of the range hood; when the controller controls the valve to be closed, the exhaust channel inside the range hood is communicated with the external environment of the range hood in a cutting mode, so that the gas detection device can only detect the gas concentration value in the exhaust channel of the range hood at the moment, the external environment gas concentration value of the range hood cannot be doped, and the gas concentration detection result is more accurate.
The embodiment also provides a smoke stove linkage control system for realizing the smoke stove linkage control method. Referring to fig. 3, the smoke and range linkage control system comprises a kitchen range and a range hood shown in fig. 2. The temperature detection device on the range hood detects the working temperature of the kitchen range, the fan state detection device detects the running state of the fan, and the gas detection device of the range hood detects and processes the concentration value of the gas in the external environment and the concentration value of the gas in the exhaust channel, so that whether the fan is started or not can be controlled in time, the working state of the kitchen range can be responded timely and accurately, and the accuracy and the linkage response speed during the linkage control of the smoke stove are improved.
Of course, in the actual case of the smoke range linkage control system, other design situations are also possible. For example:
the first situation is as follows:
the temperature detection device is arranged on the kitchen range, and the controller is also arranged on the kitchen range, so that the kitchen range can detect the working temperature and comprehensively process and judge the detection data of the gas detection device, the temperature detection device and the fan state detection device through the kitchen range, a control instruction for the fan of the range hood to execute is formed, and the range hood can timely and accurately respond to the working state of the kitchen range.
Case two:
the temperature detection device is independent of the range hood and the kitchen range, and the controller is also independent of the range hood and the kitchen range, so that the controller which is independently arranged can comprehensively process and judge according to detection data of the gas detection device, the temperature detection device and the fan state detection device, a control instruction for the fan of the range hood to execute is formed, and the range hood is instructed to make timely and accurate response to the working state of the kitchen range.
In the above-mentioned various smoke range linkage control systems, the controller may be connected to the temperature detection device and the gas detection device by wireless communication or wired communication, respectively.
Claims (9)
1. The smoke stove linkage control method is characterized by comprising the following steps:
step a, acquiring an external environment gas concentration value of the range hood;
step b, acquiring a gas concentration value in an air exhaust channel of the range hood;
step c, acquiring the working temperature value of the stove;
d, detecting the running state of a fan of the range hood;
step e, controlling a fan of the range hood to start or stop running according to the external environment gas concentration value, the gas concentration value in the exhaust channel, the working temperature value of the stove and the running state of the fan of the range hood;
in step e, according to the external environment gas concentration value, the gas concentration value in the exhaust channel, the working temperature of the stove and the fan operation state of the range hood, the fan of the range hood is controlled to start or stop operating in the following steps S1-S10:
step S1, judging according to the running state of the fan:
when the running state of the fan is starting running, the step S2 is carried out; otherwise, go to step S6;
step S2, judging the current working state of the cooker:
when the current working state of the cooker is judged to be possible to be closed, the step S3 is carried out; otherwise, go to step S8;
step S3, judging according to the acquired external environment gas concentration value of the range hood:
when the concentration value of the external environment gas of the range hood rises, judging that the current working state of the kitchen range is possibly opened, and turning to the step S4; otherwise, after acquiring the external environment gas concentration value of the range hood and the gas concentration value in the exhaust channel of the range hood again, the step S1 is executed;
step S4, starting timing for the waiting confirmation duration of the working state of the cooker, and making judgment processing according to the timing result of the waiting confirmation duration of the working state of the cooker:
when the waiting confirmation time length of the working state of the kitchen range exceeds the preset time length, judging that the current working state of the kitchen range is recovered to be a closed state, resetting the timing result of the waiting confirmation time length of the working state of the kitchen range, acquiring the external environment gas concentration value of the range hood and the gas concentration value in the exhaust channel of the range hood again, and then turning to the step S1; otherwise, go to step S5;
step S5, judging according to the acquired working temperature of the cooker:
when the working temperature of the kitchen range continuously rises, judging that the current working state of the kitchen range is open, maintaining the fan of the range hood to continue running, acquiring the concentration value of the external environment gas of the range hood and the concentration value of the gas in the exhaust channel of the range hood again, and then turning to the step S1; otherwise, after acquiring the external environment gas concentration value of the range hood and the gas concentration value in the exhaust channel of the range hood again, the step S1 is executed;
step S6, judging the current working state of the cooker:
when the current working state of the cooker is judged to be possible to be opened, the step S7 is carried out; otherwise, go to step S8;
step S7, judging according to the acquired working temperature of the cooker:
when the working temperature of the cooker continuously drops, judging that the current working state of the cooker is possibly closed, and turning to the step S8; otherwise, after acquiring the external environment gas concentration value of the range hood and the gas concentration value in the exhaust channel of the range hood again, the step S1 is executed;
step S8, starting timing for the waiting confirmation duration of the working state of the cooker, and making judgment processing according to the timing result of the waiting confirmation duration of the working state of the cooker:
when the waiting confirmation time length of the working state of the kitchen range exceeds the preset time length, judging that the current working state of the kitchen range is restored to the open state, resetting the timing result of the waiting confirmation time length of the working state of the kitchen range, acquiring the external environment gas concentration value of the range hood and the gas concentration value in the exhaust channel of the range hood again, and then turning to the step S1; otherwise, go to step S9;
step S9, acquiring the current external environment gas concentration value of the range hood and the current air exhaust channel gas concentration value of the range hood, and turning to step S10;
step S10, according to the acquired current external environment gas concentration value of the range hood and the current gas concentration value in the exhaust channel, judging and processing:
when the gas concentration difference value between the current external environment gas concentration value and the current air exhaust channel gas concentration value is smaller than the preset gas concentration difference value, judging that the working state of the cooker is closed, maintaining the fan of the range hood to continuously stop running, and after the external environment gas concentration value of the range hood and the gas concentration value in the air exhaust channel of the range hood are obtained again, turning to the step S1; otherwise, after the external environment gas concentration value of the range hood and the gas concentration value in the exhaust channel of the range hood are obtained again, the step S1 is executed.
2. The smoke range linkage control method according to claim 1, wherein in step S3, when the continuous rising time of the acquired external environment gas concentration value of the range hood is greater than a first preset time value, it is determined that the external environment gas concentration value of the range hood is rising.
3. The smoke range linkage control method according to claim 2, wherein in step S5, when the continuous rising time of the acquired operating temperature of the cooking range is greater than a second preset time value, it is determined that the operating temperature of the cooking range is continuously rising; and in step S7, when the continuous falling time of the acquired working temperature of the cooker is larger than a third preset time value, judging that the working temperature of the cooker continuously falls.
4. The smoke stove linkage control method according to any one of claims 1 to 3, wherein in the step c, the operating temperature of the stove is obtained by detecting infrared rays radiated from a flame of the stove or by detecting the operating temperature of the stove through a heat-sensitive detection manner.
5. The range hood which is matched with the range hood linkage control method of any one of claims 1 to 4 to realize the range hood linkage control method comprises a fan and is characterized by further comprising:
the gas detection device is used for detecting the concentration value of the external environment gas of the range hood and the concentration value of the gas in the exhaust channel of the range hood;
the temperature detection device is used for detecting the working temperature of the cooker;
the fan state detection device is used for detecting the running state of the fan;
and the controller is respectively connected with the fan, the gas detection device, the temperature detection device and the fan state detection device and controls the fan to start or stop running according to detection data of the gas detection device, the temperature detection device and the fan state detection device.
6. The range hood of claim 5, further comprising a valve for controlling the communication between the exhaust channel of the range hood and the external environment, wherein the valve is connected to the controller.
7. A smoke stove linkage control system for realizing the smoke stove linkage control method of any one of claims 1 to 4, comprising:
the range hood is provided with a fan;
a cooker;
it is characterized by also comprising:
the temperature detection device is used for detecting the working temperature of the cooker;
the fan state detection device is arranged on the range hood and is used for detecting the running state of the fan;
the gas detection device is arranged on the range hood and is used for detecting the concentration value of the external environment gas of the range hood and the concentration value of the gas in the exhaust channel of the range hood;
and the controller is respectively connected with the fan, the temperature detection device, the fan state detection device and the gas detection device, and controls the fan to start or stop running according to detection data of the gas detection device, the temperature detection device and the fan state detection device.
8. The smoke and range linkage control system according to claim 7, wherein the temperature detection device is arranged on the smoke exhaust ventilator or the range or the temperature detection device is arranged independently of the smoke exhaust ventilator and the range, and the controller is arranged on the smoke exhaust ventilator or the range or the controller is arranged independently of the smoke exhaust ventilator and the range.
9. The smoke stove linkage control system according to claim 7 or 8, wherein the controller is connected with the temperature detection device and the gas detection device in a wireless communication or wired communication manner, respectively.
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