CN112066431A - Target air volume control method of central flue system - Google Patents

Target air volume control method of central flue system Download PDF

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Publication number
CN112066431A
CN112066431A CN202010854808.1A CN202010854808A CN112066431A CN 112066431 A CN112066431 A CN 112066431A CN 202010854808 A CN202010854808 A CN 202010854808A CN 112066431 A CN112066431 A CN 112066431A
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pan
pot
fan
air volume
acceleration sensor
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CN112066431B (en
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何立博
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Ningbo Fotile Kitchen Ware Co Ltd
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Ningbo Fotile Kitchen Ware Co Ltd
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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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  • Engineering & Computer Science (AREA)
  • Ventilation (AREA)
  • Chemical & Material Sciences (AREA)
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Abstract

A target air volume control method of a central flue system comprises a range hood and a kitchen range which are arranged in a kitchen room, wherein an internal flue of the range hood is communicated with a common flue to form a smoke exhaust channel, a fan is arranged in the smoke exhaust channel, and a pot is arranged on the kitchen range, and is characterized in that: the device also comprises a sensor for detecting the movement mode of the pan and a controller for controlling the air quantity of the fan by reading the information of the sensor, wherein the sensor is a first acceleration sensor and a second acceleration sensor which are arranged on the pan. The invention has the advantages that: according to the target air volume control method of the central flue system, the first acceleration sensor and the second acceleration sensor which are installed on the pan are used for analyzing the pan taking action information of a user and predicting the possible large oil smoke situation, so that the trend of sudden change of oil smoke is predicted in a preposed mode, air volume targets of different user states are arranged more reasonably, the possible generated leakage smoke or potential negative pressure is sucked away in advance, and the user experience is further improved.

Description

Target air volume control method of central flue system
The application is a divisional application, the application date of the original application is 2019, 7 and 10 months, the application number of the original application is 201910617366.6, and the invention name of the original application is' a central flue system and a target air volume control method thereof
Technical Field
The invention relates to a central flue system, in particular to a target air volume control method of the central flue system.
Background
The range hood is an essential electrical appliance for people to cook and smoke, and a motor of the traditional range hood adopts a fixed gear or a rotating speed, so that the anti-interference self-adaptive capacity to flue resistance and natural wind convection when doors and windows are opened simultaneously is poor. The smoke generation amount is a changing curve in the cooking process of a user, experiments easily find that general big smoke mainly appears at the moment when dishes, seasonings, water and the like fall into a pot, and in the process that the user turns over the pot to stir, the smoke amount in other cooking time is small and the change is small, and a high-rise public flue occupies a small residential area as far as possible because the number of users connected into the high-rise public flue is generally large (generally, the number of floors and the number of users share one public flue), the design is generally small (for example, 40 percent) at the same time, the starting rate is increased, or the increase of the air amount in the flue easily causes the conditions of jam and backflow. The high-rise air quantity central control range hood generally adopts a method of controlling air quantity of each floor, controls target flow within a certain range, meets basic smoke exhaust requirements, can solve the problem of uneven flow distribution of different floors to a certain extent, but is difficult to deal with suddenly increased oil smoke and interference. The existing traditional oil smoke escape interference detection method mainly uses an oil smoke sensor or a camera to detect the appearance of smoke-free fog or the change of a quantitative value to judge the size and the escape of oil smoke, and the detection methods increase the rotating speed or the target air volume to carry out post-feedback type adsorption after the oil smoke is diffused out.
A control system of the range hood comprises a main control chip, a slave control chip and a sensor group, wherein the main control chip is connected with the sensor group, the motor driving module consists of an intelligent power module, a motor driving chip and a sampling and protecting circuit, the sensor group detects the running state of the range hood and inputs the running state into the main control chip, the main control chip determines an air volume value and sends the air volume value to the motor driving module after judging the running state of the range hood so as to drive a direct current motor to work, the direct current motor detects the oil smoke and water vapor concentration of an air inlet through an air inlet oil smoke and water vapor sensor, and the compensation amount is calculated according to the deviation amount of the oil smoke concentration or the water vapor concentration from an initial set range and adjusts the current air volume And (4) an air quantity value. The automatic air quantity regulation control device and the control method have certain hysteresis, because the deviation quantity of the sensed oil smoke or water vapor concentration of the sensor group deviating from the initial set range is calculated to calculate the compensation quantity of the air quantity and determine the current required air quantity value, and the rotating speed of the fan motor reaches the value of the required air quantity gear, a certain time is needed, if in quick frying, the fan motor of the range hood does not rotate or is still at the rotating speed of small air quantity at the beginning, the oil smoke sensor senses the oil smoke with larger concentration and transmits the information to the control device, and before the rotating speed of the fan motor reaches the value of the larger air quantity gear which is enough to discharge the current oil smoke, partial oil smoke is diffused outwards to pollute the kitchen environment.
Disclosure of Invention
The first technical problem to be solved by the present invention is to provide a central flue system capable of controlling the air volume of the fan by obtaining the movement mode of the pan.
The second technical problem to be solved by the present invention is to provide a target air volume control method for a central flue system, which can adaptively adjust the air volume according to the pre-posed pre-judgment of the possible interference situation, in view of the above prior art.
The technical scheme adopted by the invention for solving the first technical problem is as follows: this central flue system, including installing range hood and the cooking utensils in the kitchen, range hood's inside flue and public flue are linked together in order constituting the smoke exhaust passage install the fan in the smoke exhaust passage be equipped with pot, its characterized in that on the cooking utensils: the device also comprises a sensor for detecting the movement mode of the pot and a controller for controlling the air quantity of the fan by reading the information of the sensor.
Preferably, the fan is an indoor fan installed inside the range hood and/or a main fan installed on the top of the common flue.
Preferably, the sensor is a gyroscope mounted on a handle of the pan.
As another preferred scheme, the sensors are a first acceleration sensor and a second acceleration sensor which are installed on the pot, the first acceleration sensor is used for detecting the acceleration movement of the pot in the vertical direction, and the second acceleration sensor is used for detecting the acceleration movement of the pot in the horizontal direction.
In order to avoid the acceleration sensor from being interfered by flame, the first acceleration sensor and the second acceleration sensor are arranged on the outer side surface of the pot and close to the upper edge of the pot.
The technical scheme adopted by the invention for solving the second technical problem is as follows: the target air volume control method of the central flue system is characterized by comprising the following steps of:
firstly, starting the range hood;
secondly, operating the range hood at a default gear;
thirdly, the controller reads the information of the gyroscope sensor;
judging whether the pan moves relatively;
if the pan does not move relatively, the current state is kept to operate;
sixthly, judging the movement form of the pan if judging that the pan moves relatively;
seventhly, if the rotation is carried out, the dish is judged to be contained or the pot is washed, and the target air quantity or the rotating speed of the fan is reduced;
if the pot is moved up and down, judging to prepare a top pot, and increasing the target air volume or the target rotating speed of a fan;
ninthly, if the movement is left and right, judging that the pot is ready to be taken to wash, and reducing the target air volume or the target rotating speed of the fan;
c, continuously judging whether the pan reversely moves on the basis of the step ninthly;
Figure BDA0002646053650000031
if the air flow moves reversely, the target air volume is increased;
Figure BDA0002646053650000032
if the mobile terminal does not move reversely, the mobile terminal keeps running under the current condition;
Figure BDA0002646053650000033
repeating step three to E
Figure BDA0002646053650000034
Until the fan is turned off.
Another technical solution adopted by the present invention to solve the second technical problem is: the target air volume control method of the central flue system is characterized by comprising the following steps of:
firstly, starting the range hood;
secondly, operating the range hood at a default gear;
reading information of the first acceleration sensor and the second acceleration sensor by the controller;
judging whether the pan moves relatively;
if the pan does not move relatively, the current state is kept to operate;
sixthly, if the relative movement of the pan is judged, judging whether the pan moves obviously in an accelerated way in the vertical direction;
seventhly, if obvious accelerated motion exists in the vertical direction, judging to prepare a top pan, and increasing the target air volume or the rotating speed of a fan;
if there is no obvious acceleration motion in the vertical direction, judging whether there is obvious acceleration motion in the horizontal direction;
ninthly, if no obvious accelerated motion exists in the horizontal direction, keeping the current state to operate;
if there is obvious acceleration movement in the direction of red, then judge to prepare to take and wash the pot, and turn down the goal air quantity or rotational speed of the blower;
Figure BDA0002646053650000035
judging whether the pan moves reversely on the basis of the step (r);
Figure BDA0002646053650000036
if the air flow moves reversely, the target air volume is increased;
Figure BDA0002646053650000037
if the mobile terminal does not move reversely, the mobile terminal keeps running under the current condition;
Figure BDA0002646053650000038
repeating step three to E
Figure BDA0002646053650000039
Until the fan is turned off.
Compared with the prior art, the invention has the advantages that: this central flue system can take pot action information to the user through the sensor of installing on the pot and carry out analysis and the big oil smoke condition of prediction probably appearing, carries out the trend of leading prediction oil smoke sudden change from this, arranges the amount of wind target of different user states more rationally, inhales away the running cigarette that probably produces or the latent negative pressure that inhales in advance, and then promotes user experience.
Drawings
FIG. 1 is a schematic structural diagram according to a first embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a cooker and a pan according to a first embodiment of the invention;
fig. 3 is a structural sectional view of a range hood according to a first embodiment of the present invention;
FIG. 4 is a schematic structural diagram of a central flue system according to a first embodiment of the present invention;
fig. 5 is a control logic diagram of a target air volume control method according to a first embodiment of the present invention;
FIG. 6 is a schematic structural view of a cooker and a pan in the second embodiment of the invention;
fig. 7 is a control logic diagram of a target air volume control method according to a second embodiment of the present invention.
Detailed Description
The invention is described in further detail below with reference to the accompanying examples.
The first embodiment is as follows:
as shown in fig. 1 to 4, the central flue system of the present embodiment includes a range hood 1 and a kitchen range 2 installed in a kitchen, an internal flue of the range hood 1 is communicated with a common flue 3 to form a smoke exhaust channel, a fan is installed in the smoke exhaust channel, a pan 4 is installed on the kitchen range 2, and a gyroscope 7 for detecting a movement mode of the pan is installed on a handle 41 of the pan. The gyroscope 7 is used as a common sensor, and has low cost and good precision. The common action pattern of the user in the cooking process is relatively fixed, for example: the up-down movement with a certain frequency generally only occurs in a top-frying scene, the whole pan 4 rotates around the shaft of the handle 41, or the translation generally is to contain vegetables or prepare to go to a water tank to wash the pan or move reversely after the pan is washed. Therefore, whether the user is in a characteristic scene of washing a pot, frying a pot, holding vegetables and the like can be judged by identifying whether the gyroscope rotates, moves up and down, translates and the like.
As shown in fig. 3, a range hood 1 with a fan is adopted, that is, the fan is an indoor fan 5 installed inside the range hood 1. As shown in fig. 4, a range hood without a fan is adopted, i.e., the fan is a main fan 6 installed on the top of the common flue 3. In addition, the central flue system further comprises a controller (shown in the figure) capable of reading information of the gyroscope 7, the controller is installed on the range hood 1, and the controller correspondingly adjusts the rotating speed of the fan and the target air volume according to the read information of the sensor, and can also be adjusted by combining with an outdoor host.
As shown in fig. 5, the target air volume control method of the central flue system includes the steps of:
firstly, starting the range hood;
secondly, operating the range hood at a default gear;
thirdly, the controller reads the information of the gyroscope sensor;
judging whether the pan moves relatively;
if the pan does not move relatively, the current state is kept to operate;
sixthly, judging the movement form of the pan if judging that the pan moves relatively;
seventhly, if the rotation is carried out, the dish is judged to be contained or the pot is washed, and the target air quantity or the rotating speed of the fan is reduced;
if the pot is moved up and down, judging to prepare a top pot, and increasing the target air volume or the target rotating speed of a fan;
ninthly, if the movement is left and right, judging that the pot is ready to be taken to wash, and reducing the target air volume or the target rotating speed of the fan;
c, continuously judging whether the pan reversely moves on the basis of the step ninthly;
Figure BDA0002646053650000041
if the air flow moves reversely, the target air volume is increased;
Figure BDA0002646053650000042
if the mobile terminal does not move reversely, the mobile terminal keeps running under the current condition;
Figure BDA0002646053650000043
repeating step three to E
Figure BDA0002646053650000044
Until the fan is turned off.
After the control method is adopted, whether a user is in a characteristic scene of pot washing, dish holding, pot tossing and quick frying and the like is judged by identifying whether the gyroscope rotates, translates, moves up and down and the like, the current rotating speed or the target air volume condition is adjusted, the advance in time is guaranteed through prediction, the high-performance requirement of the oil smoke sensor and the camera on the real-time performance of the controller is reduced, the oil smoke can be guaranteed to be diffused or sucked away before escaping through slightly slow calculation, and the user experience is further improved.
Example two:
as shown in fig. 6, the central flue system of the present embodiment is provided with a first acceleration sensor 8 and a second acceleration sensor 9 at the position of the outer side surface of the pan 4 close to the upper edge, wherein the first acceleration sensor 8 is used for detecting the acceleration movement of the pan 4 in the vertical direction, and the second acceleration sensor 9 is used for detecting the acceleration movement of the pan 4 in the horizontal direction.
As shown in fig. 7, the target air volume control method of the present embodiment includes the steps of:
firstly, starting the range hood;
secondly, operating the range hood at a default gear;
reading information of the first acceleration sensor and the second acceleration sensor by the controller;
judging whether the pan moves relatively;
if the pan does not move relatively, the current state is kept to operate;
sixthly, if the relative movement of the pan is judged, judging whether the pan moves obviously in an accelerated way in the vertical direction;
seventhly, if obvious accelerated motion exists in the vertical direction, judging to prepare a top pan, and increasing the target air volume or the rotating speed of a fan;
if there is no obvious acceleration motion in the vertical direction, judging whether there is obvious acceleration motion in the horizontal direction;
ninthly, if no obvious accelerated motion exists in the horizontal direction, keeping the current state to operate;
if there is obvious acceleration movement in the direction of red, then judge to prepare to take and wash the pot, and turn down the goal air quantity or rotational speed of the blower;
Figure BDA0002646053650000051
in the step ofJudging whether the pan moves reversely on the basis of the wave red;
Figure BDA0002646053650000052
if the air flow moves reversely, the target air volume is increased;
Figure BDA0002646053650000053
if the mobile terminal does not move reversely, the mobile terminal keeps running under the current condition;
Figure BDA0002646053650000054
repeating step three to E
Figure BDA0002646053650000055
Until the fan is turned off.

Claims (3)

1. A target air volume control method of a central flue system comprises a range hood (1) and a kitchen range (2) which are installed in a kitchen room, wherein an inner flue of the range hood (1) is communicated with a common flue (3) to form a smoke exhaust channel, a fan is installed in the smoke exhaust channel, a pot (4) is arranged on the kitchen range (2), the central flue system also comprises a sensor for detecting the movement mode of the pot (4) and a controller for controlling the air volume of the fan by reading the information of the sensor, the sensor comprises a first acceleration sensor (8) and a second acceleration sensor (9) which are installed on the pot (4), the first acceleration sensor (8) is used for detecting the accelerated movement of the pot (4) in the vertical direction, the second acceleration sensor (9) is used for detecting the accelerated movement of the pot (4) in the horizontal direction, the method is characterized by comprising the following steps:
firstly, starting the range hood;
secondly, operating the range hood at a default gear;
reading information of the first acceleration sensor and the second acceleration sensor by the controller;
judging whether the pan moves relatively;
if the pan does not move relatively, the current state is kept to operate;
sixthly, if the relative movement of the pan is judged, judging whether the pan moves obviously in an accelerated way in the vertical direction;
seventhly, if obvious accelerated motion exists in the vertical direction, judging to prepare a top pan, and increasing the target air volume or the rotating speed of a fan;
if there is no obvious acceleration motion in the vertical direction, judging whether there is obvious acceleration motion in the horizontal direction;
ninthly, if no obvious accelerated motion exists in the horizontal direction, keeping the current state to operate;
if there is obvious acceleration movement in the direction of red, then judge to prepare to take and wash the pot, and turn down the goal air quantity or rotational speed of the blower;
Figure FDA0002646053640000011
judging whether the pan moves reversely on the basis of the step (r);
Figure FDA0002646053640000012
if the wind power moves reversely, the target wind volume is increased;
Figure FDA0002646053640000013
if the mobile terminal does not move reversely, the current state is kept to operate;
Figure FDA0002646053640000014
repeating step three to instant
Figure FDA0002646053640000015
Until the fan is turned off.
2. The method for controlling a target air volume of a central flue system according to claim 1, comprising: the fan is an indoor fan (5) arranged in the range hood (1) and/or a main fan (6) arranged at the top of the common flue (3).
3. The method for controlling a target air volume of a central flue system according to claim 1, comprising: the first acceleration sensor (8) and the second acceleration sensor (9) are arranged on the outer side surface of the pot (4) and close to the upper edge of the pot (4).
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CN111428714B (en) * 2020-03-25 2023-10-13 杭州九阳小家电有限公司 Method and device for regulating rotating speed of range hood
CN113464991B (en) * 2020-03-30 2022-10-21 宁波方太厨具有限公司 Method for presetting target air volume of indoor range hood in centralized smoke exhaust system of building
CN113531603B (en) * 2020-04-14 2022-10-21 宁波方太厨具有限公司 Model selection method for additionally installing outdoor fan system in centralized smoke exhaust system of building
CN112648658B (en) * 2020-12-22 2022-04-15 宁波方太厨具有限公司 Control method of cooking device and cooking device applying same

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