CN113339856A - Opening and closing control method, device, equipment and medium for smoke baffle - Google Patents
Opening and closing control method, device, equipment and medium for smoke baffle Download PDFInfo
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- CN113339856A CN113339856A CN202110502472.7A CN202110502472A CN113339856A CN 113339856 A CN113339856 A CN 113339856A CN 202110502472 A CN202110502472 A CN 202110502472A CN 113339856 A CN113339856 A CN 113339856A
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- 238000000034 method Methods 0.000 title claims abstract description 62
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- 230000009471 action Effects 0.000 claims abstract description 21
- 230000006870 function Effects 0.000 claims description 99
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- 238000004590 computer program Methods 0.000 claims description 12
- 230000005484 gravity Effects 0.000 claims description 6
- 238000004364 calculation method Methods 0.000 claims description 3
- 230000001681 protective effect Effects 0.000 claims description 3
- 235000019504 cigarettes Nutrition 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000002441 reversible effect Effects 0.000 description 3
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 238000010411 cooking Methods 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 208000014674 injury Diseases 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 230000001154 acute effect Effects 0.000 description 1
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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
- F24C15/2078—Removing cooking fumes movable
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- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Ventilation (AREA)
Abstract
The invention discloses a method for controlling opening and closing of a smoke baffle, which comprises the following steps: acquiring an opening function and a closing function of a smoke baffle; when the opening or closing of the smoke baffle is detected, the current angle of the detected smoke baffle relative to the range hood and the current acting force of the motor push rod on the smoke baffle at the current angle are obtained; substituting the current angle into the opening function or the closing function to calculate the theoretical acting force of the smoke baffle plate at the current angle; and comparing the current acting force with the theoretical acting force, determining whether the smoke baffle collides with the barrier currently according to the obtained comparison result, and if the smoke baffle collides with the barrier currently, sending an early warning prompt and driving a motor push rod to execute a protection action. Therefore, the invention can effectively avoid the condition that the human body is damaged or the kitchen ware is overturned in the opening and closing process of the smoke baffle plate, and can ensure that a user can safely use the range hood. In addition, an opening and closing control device, an apparatus, and a storage medium are also proposed.
Description
Technical Field
The invention relates to the technical field of control of smoke exhaust ventilators, in particular to a method, a device, equipment and a medium for controlling opening and closing of a smoke baffle.
Background
The kitchen ventilator is a kitchen appliance for purifying kitchen environment, and is mounted above a kitchen stove, and can quickly pump away waste burnt by the stove and oil smoke harmful to human bodies generated in the cooking process. The smoke exhaust ventilator of some types is also provided with a smoke baffle, and the smoke baffle can guide oil smoke and condensed oil smoke, so that the oil smoke can be rapidly discharged by the smoke exhaust ventilator, and the condition of smoke return is avoided.
However, the size of the smoke baffle is generally larger, and a considerable part of kitchen space is occupied in the opening and closing process, and if the height of a user is higher or a kitchen ware with higher height is used in the cooking process, personal injury or turnover of the kitchen ware can be easily caused. Therefore, a cigarette blocking plate opening and closing control scheme capable of guaranteeing the use safety of users is needed.
Disclosure of Invention
In view of the above, it is necessary to provide a method, an apparatus, a device and a medium for controlling opening and closing of a smoke barrier, which ensure safe use of a user.
A method for controlling opening and closing of a smoke baffle plate is applied to a range hood, the range hood comprises the smoke baffle plate and a motor push rod, the motor push rod is connected with the smoke baffle plate and a box body of the range hood, the motor push rod extends out to drive the smoke baffle plate to be opened, and the motor push rod retracts to drive the smoke baffle plate to be closed;
the method comprises the following steps:
acquiring an opening function and a closing function of the smoke baffle, wherein the opening function and the closing function are historical relation functions of the angle and the acting force of the smoke baffle in the opening and closing process;
when the opening or closing of the smoke baffle is detected, the detected current angle of the smoke baffle relative to the range hood and the current acting force of the motor push rod on the smoke baffle at the current angle are obtained;
substituting the current angle into the opening function or the closing function to calculate the theoretical acting force of the smoke baffle at the current angle;
and comparing the current acting force with the theoretical acting force, determining whether the smoke baffle collides with an obstacle currently according to an obtained comparison result, and if the smoke baffle collides with the obstacle currently, sending an early warning to remind and driving the motor push rod to execute a protection action.
In one embodiment, the obtaining the opening function and the closing function of the smoke barrier includes:
acquiring historical angles of the detected smoke baffle in the opening and closing process and corresponding historical acting force under each historical angle;
fitting the historical angle and the historical force to obtain the opening function and the closing function.
In one embodiment, the motor push rod comprises a motor, a push rod and a force measuring sensor, the motor is fixed to a box body of the range hood, two ends of the push rod are respectively connected with the motor and the smoke baffle, and the force measuring sensor detects the current acting force along the arrangement direction of the push rod.
In one embodiment, an acceleration sensor is disposed on the smoke barrier, the acceleration sensor is configured to detect a first acceleration currently perpendicular to a direction in which the smoke barrier is disposed, and the acquiring of the detected current angle of the smoke barrier relative to the range hood includes:
and acquiring the first acceleration, and calculating the current angle according to the first acceleration and the gravity acceleration.
In one embodiment, the comparing the current acting force with the theoretical acting force and determining whether the smoke baffle collides with an obstacle according to the obtained comparison result includes:
acquiring a preset acting force threshold, and if the current acting force is greater than the sum of the theoretical acting force and the acting force threshold, determining that the smoke baffle collides with the barrier currently; and if the current acting force is less than or equal to the sum of the theoretical acting force and the acting force threshold value, determining that the smoke baffle plate does not collide with the obstacle currently.
In one embodiment, the driving the motor push rod to perform a protection action includes:
driving the motor push rod to stop extending or retracting; or the like, or, alternatively,
and driving the motor push rod to move in the direction opposite to the current extending direction or retracting direction until the smoke baffle plate returns to the fully-opened state or the fully-closed state.
In one embodiment, after the sending of the warning prompt and the driving of the motor push rod to execute the protection action, the method further includes:
and periodically acquiring the real-time acting force of the smoke baffle, and when the real-time acting force is smaller than the sum of the theoretical acting force and an acting force threshold, continuously driving the motor push rod to extend or retract.
An opening and closing control device is applied to a smoke exhaust ventilator, the smoke exhaust ventilator comprises a smoke baffle and a motor push rod, the motor push rod is connected with the smoke baffle and a box body of the smoke exhaust ventilator, the motor push rod extends out to drive the smoke baffle to be opened, and the motor push rod retracts to drive the smoke baffle to be closed;
the device comprises:
the function acquisition module is used for acquiring an opening function and a closing function of the smoke baffle, wherein the opening function and the closing function are historical relation functions of the angle and the acting force of the smoke baffle in the opening and closing processes;
the control parameter acquisition module is used for acquiring the detected current angle of the smoke baffle plate relative to the range hood and the current acting force of a motor push rod on the smoke baffle plate at the current angle when the smoke baffle plate is detected to be opened or closed;
the theoretical parameter calculation module is used for substituting the current angle into the opening function or the closing function to calculate the theoretical acting force of the smoke baffle at the current angle;
and the opening and closing control module is used for comparing the current acting force with the theoretical acting force, determining whether the smoke baffle plate collides with an obstacle currently according to the obtained comparison result, and sending out early warning to remind and drive the motor push rod to execute protection action if the smoke baffle plate collides with the obstacle currently.
A computer-readable storage medium storing a computer program which, when executed by a processor, causes the processor to perform the steps of:
acquiring an opening function and a closing function of the smoke baffle, wherein the opening function and the closing function are historical relation functions of the angle and the acting force of the smoke baffle in the opening and closing process;
when the opening or closing of the smoke baffle is detected, the detected current angle of the smoke baffle relative to the range hood and the current acting force of the motor push rod on the smoke baffle at the current angle are obtained;
substituting the current angle into the opening function or the closing function to calculate the theoretical acting force of the smoke baffle at the current angle;
and comparing the current acting force with the theoretical acting force, determining whether the smoke baffle collides with an obstacle currently according to an obtained comparison result, and if the smoke baffle collides with the obstacle currently, sending an early warning to remind and driving the motor push rod to execute a protection action.
A range hood comprising a memory and a processor, the memory storing a computer program that, when executed by the processor, causes the processor to perform the steps of:
acquiring an opening function and a closing function of the smoke baffle, wherein the opening function and the closing function are historical relation functions of the angle and the acting force of the smoke baffle in the opening and closing process;
when the opening or closing of the smoke baffle is detected, the detected current angle of the smoke baffle relative to the range hood and the current acting force of the motor push rod on the smoke baffle at the current angle are obtained;
substituting the current angle into the opening function or the closing function to calculate the theoretical acting force of the smoke baffle at the current angle;
and comparing the current acting force with the theoretical acting force, determining whether the smoke baffle collides with an obstacle currently according to an obtained comparison result, and if the smoke baffle collides with the obstacle currently, sending an early warning to remind and driving the motor push rod to execute a protection action.
The invention provides a method, a device, equipment and a medium for controlling opening and closing of a smoke baffle plate. Therefore, the invention can effectively avoid the condition that the human body is damaged or the kitchen ware is overturned in the opening and closing process of the smoke baffle plate, and can ensure that a user can safely use the range hood.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Wherein:
FIG. 1 is a schematic flow chart illustrating a method for controlling opening and closing of a smoke barrier in one embodiment;
FIG. 2 is a schematic view of a range hood in one embodiment;
FIG. 3 is a schematic view of a push rod of the motor in one embodiment;
FIG. 4 is a schematic structural diagram of an opening and closing control device according to an embodiment;
fig. 5 is a block diagram of a range hood in one embodiment.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1, fig. 1 is a schematic flow chart of an opening and closing control method of a smoke barrier in an embodiment, and the opening and closing control method of the embodiment is applied to a range hood. As shown in fig. 2, fig. 2 is a schematic view of a hood in an embodiment, which includes a control panel 10, a smoke barrier 30 and a motor push rod 22. The control panel 10 is disposed on the smoke barrier 30 for data processing and controlling the opening and closing of the motor push rod 22. The motor push rod 22 is connected with the smoke baffle 30 and the box body of the range hood, the smoke baffle 30 is driven to be opened when the motor push rod 22 extends, and the smoke baffle 30 is driven to be closed when the motor push rod 22 retracts. The smoke barrier 30 can guide the oil smoke and the condensed oil smoke when being completely opened, so that the oil smoke can be rapidly discharged by the range hood, and the smoke barrier 30 can make up the kitchen space when being completely closed.
The opening and closing control method of the smoke baffle in the embodiment comprises the following steps:
The opening function and the closing function are historical relation functions of angles and acting forces of the smoke baffle in the opening and closing process.
In one embodiment, the process of determining the opening function is: firstly, a plurality of historical angles f of the detected smoke baffle 30 in the opening process are obtained1And the corresponding historical acting force at each historical angle
The detection frequency of the angle may be based on a fixed time interval or a fixed extending distance of the motor push rod 22, and is not limited in detail. Then, an opening function model is preliminarily constructed, and according to the history angle f after the smoothing treatment1Performing least square fitting on the opening function model to obtain a fitting force and a historical force
The sum of the squares of the errors between is the fitting parameter at the minimum. Determining the final required opening function according to the fitting parameters
Similarly, the closing function of the smoke barrier 30 during closing is determined
And 104, when the opening or closing of the smoke baffle is detected, acquiring the current angle of the detected smoke baffle relative to the range hood and the current acting force of the motor push rod on the smoke baffle at the current angle.
Specifically, the method comprises the following steps. The smoke barrier 30 is further provided with an acceleration sensor, and the acceleration sensor is used for detecting a first acceleration which is perpendicular to the setting direction of the smoke barrier 30 at present. When the smoke baffle 30 is detected to be opened or closed, a first acceleration a currently detected by the acceleration sensor is obtained, then an included angle between the first acceleration a and the gravity acceleration g is determined, an acute angle part is taken as the included angle, and a residual angle which is complementary to the included angle is taken as a current angle of the smoke baffle 30 relative to the range hoodDegree of rotation
In the present embodiment, referring to fig. 3, fig. 3 is a schematic diagram of the motor push rod 22. The motor push rod 22 comprises a motor 21, a push rod 22 and a load cell 23, wherein the motor 21 is partially fixed on the box body of the range hood, and controls the extending or retracting action of the push rod 22. The two ends of the push rod 22 are respectively connected with the motor 21 and the smoke baffle 30, when the push rod 22 extends out, the smoke baffle 30 is driven to open, and when the push rod 22 retracts, the smoke baffle 30 is driven to close. The load cell 23 is provided on the push rod 22, and detects a current acting force f in the direction in which the push rod 22 is provided. Every time the acceleration sensor detects the first acceleration which is currently perpendicular to the setting direction of the smoke barrier 30, the load cell 23 synchronously detects and feeds back the acting force of the motor push rod 22 (the thrust along the setting direction of the push rod 22) to the main control chip of the control panel 10.
And 106, substituting the current angle into the opening function or the closing function to calculate the theoretical acting force of the smoke baffle at the current angle.
First, it is determined whether the smoke barrier 30 is currently in the open state or the closed state according to the change of the plurality of current angles acquired in step 104. If the angle of the smoke barrier 30 is gradually increased, it indicates that the smoke barrier 30 is in an open state. If the angle of the smoke barrier 30 is gradually decreased, it indicates that the smoke barrier 30 is in a closed state.
The detected current angle is detected in real time in the process of opening the smoke baffle 30
Substituting into the open function
And calculating the theoretical acting force F of the smoke baffle 30 at the current angle through the opening function1。
Similarly, in the process of closing the smoke baffle 30, the detected current angle is detected in real time
Substituting a closed function
And calculating the theoretical acting force F of the smoke baffle 30 at the current angle through a closing function2。
And 108, comparing the current acting force with the theoretical acting force, determining whether the smoke baffle collides with the barrier currently according to the obtained comparison result, and if the smoke baffle collides with the barrier currently, sending out an early warning prompt and driving a motor push rod to execute a protection action.
Specifically, a preset force threshold F is first obtained0The threshold of the force F0Can be set slightly smaller to improve the accuracy of the control. If f appears during the opening and closing process>F1+F0Or f>F2+F0Then it is determined that the smoke barrier 30 has currently collided with an obstacle. Otherwise, if F is always kept to be less than or equal to F in the opening and closing process1+F0Or F is less than or equal to F2+F0If it is determined that the smoke barrier 30 does not collide with an obstacle, the opening and closing operation of the smoke barrier 30 is maintained.
Of course, if the smoke barrier 30 collides with an obstacle at present, an early warning prompt is sent out and the motor push rod 22 is driven to perform a protection action, so as to avoid personal injury or kitchen ware overturn. Illustratively, the protection actions include: the drive motor push rod 22 stops extending or retracting to stop the opening or closing of the smoke barrier 30 so that the user has time to move away from the smoke barrier 30 or move the utensil. In addition, in consideration of the space limitation of the smoke barrier 30 itself, which may make it difficult for the user to get away from the smoke barrier 30 or move the kitchen ware, a protection mechanism may be provided as the driving motor push rod 22 to move in the opposite direction of the current extending direction or retracting direction until the smoke barrier 30 is restored to the fully opened state or the fully closed state, so that a sufficient moving space can be provided.
Further, the real-time acting force of the smoke barrier 30 is periodically acquired, for example, every 5s or every 10s, when the real-time acting force is smaller than the sum of the theoretical acting force and the acting force threshold value, it indicates that the smoke barrier 30 does not touch the obstacle any more, and the motor push rod 22 is continuously driven to extend or retract, so that the smoke barrier 30 is continuously opened or closed.
According to the opening and closing control method of the smoke baffle, whether the smoke baffle collides with an obstacle currently is calculated by obtaining the opening function and the closing function of the smoke baffle, the current angle of the smoke baffle and the current acting force corresponding to the current angle, and if the smoke baffle collides with the obstacle currently, an early warning is sent to remind and the motor push rod is driven to execute a protection action. Therefore, the invention can effectively avoid the condition that the human body is damaged or the kitchen ware is overturned in the opening and closing process of the smoke baffle plate, and can ensure that a user can safely use the range hood.
In one embodiment, as shown in fig. 4, an opening and closing control device is provided for a range hood, where the range hood includes a smoke baffle and a motor push rod, the motor push rod connects the smoke baffle and a box of the range hood, the motor push rod extends out to drive the smoke baffle to open, and the motor push rod retracts to drive the smoke baffle to close.
This controlling means that opens and shuts includes:
a function obtaining module 402, configured to obtain an opening function and a closing function of the smoke barrier, where the opening function and the closing function are historical relationship functions of an angle and an acting force of the smoke barrier in an opening and closing process;
a control parameter obtaining module 404, configured to obtain, when it is detected that the smoke barrier is opened or closed, a current angle of the detected smoke barrier relative to the range hood and a current acting force of the motor push rod on the smoke barrier at the current angle;
a theoretical parameter calculation module 406, configured to substitute the current angle into the opening function or the closing function to calculate a theoretical acting force of the smoke barrier at the current angle;
and the opening and closing control module 408 is used for comparing the current acting force with the theoretical acting force, determining whether the smoke baffle collides with the barrier currently according to the obtained comparison result, and sending out an early warning prompt and driving the motor push rod to execute a protection action if the smoke baffle collides with the barrier currently.
Above-mentioned controlling means that opens and shuts calculates through the current effort that corresponds under the current angle and the current angle that obtains opening function, the closed function, the current angle that keeps off the cigarette board of keeping off the cigarette board and the current angle and keep off the cigarette board and whether collide the barrier at present, if keep off the barrier that the cigarette board collides at present, then send the early warning and remind and driving motor push rod execution protection action. Therefore, the invention can effectively avoid the condition that the human body is damaged or the kitchen ware is overturned in the opening and closing process of the smoke baffle plate, and can ensure that a user can safely use the range hood.
In an embodiment, the function obtaining module 402 is specifically configured to: acquiring historical angles of the detected smoke baffle in the opening and closing process and corresponding historical acting force under each historical angle; the historical angles and historical forces are fitted to obtain an open function and a closed function.
In one embodiment, the smoke barrier is provided with an acceleration sensor, and the acceleration sensor is used for detecting a first acceleration which is perpendicular to the arrangement direction of the smoke barrier. The control parameter obtaining module 404 is specifically configured to: and acquiring a first acceleration, and calculating the current angle according to the first acceleration and the gravity acceleration.
In one embodiment, the switching control module 408 is specifically configured to: acquiring a preset acting force threshold, and if the current acting force is greater than the sum of the theoretical acting force and the acting force threshold, determining that the smoke baffle collides with an obstacle currently; and if the current acting force is less than or equal to the sum of the theoretical acting force and the acting force threshold value, determining that the smoke baffle does not collide with the obstacle currently.
In one embodiment, the switching control module 408 is specifically configured to: the push rod of the driving motor stops extending or retracting; or the driving motor push rod moves towards the reverse direction of the current extending direction or retracting direction until the smoke baffle plate returns to the fully open state or the fully closed state.
In one embodiment, the open/close control module 408 is further configured to: and periodically acquiring the real-time acting force of the smoke baffle, and continuously driving the motor push rod to extend or retract when the real-time acting force is smaller than the sum of the theoretical acting force and the acting force threshold.
Fig. 5 shows an internal structure view of the hood in one embodiment. As shown in fig. 5, the range hood includes a processor, a memory, and a network interface connected by a system bus. Wherein the memory includes a non-volatile storage medium and an internal memory. The non-volatile storage medium of the range hood stores an operating system and also stores a computer program, and when the computer program is executed by a processor, the processor can realize the opening and closing control method of the smoke baffle. The internal memory can also store a computer program, and when the computer program is executed by the processor, the processor can execute the opening and closing control method of the smoke baffle. Those skilled in the art will appreciate that the configuration shown in figure 5 is a block diagram of only a portion of the structure associated with the present application and does not constitute a limitation on the range hood to which the present application is applied, and that a particular range hood may include more or fewer components than those shown, or some components may be combined, or have a different arrangement of components.
A range hood comprising a memory, a processor and a computer program stored in the memory and executable on the processor, the processor implementing the following steps when executing the computer program: acquiring an opening function and a closing function of the smoke baffle, wherein the opening function and the closing function are historical relation functions of the angle and the acting force of the smoke baffle in the opening and closing process; when the opening or closing of the smoke baffle is detected, the current angle of the detected smoke baffle relative to the range hood and the current acting force of the motor push rod on the smoke baffle at the current angle are obtained; substituting the current angle into the opening function or the closing function to calculate the theoretical acting force of the smoke baffle plate at the current angle; and comparing the current acting force with the theoretical acting force, determining whether the smoke baffle collides with the barrier currently according to the obtained comparison result, and if the smoke baffle collides with the barrier currently, sending an early warning prompt and driving a motor push rod to execute a protection action.
In one embodiment, obtaining the opening and closing functions of the smoke barrier comprises: acquiring historical angles of the detected smoke baffle in the opening and closing process and corresponding historical acting force under each historical angle; the historical angles and historical forces are fitted to obtain an open function and a closed function.
In one embodiment, be provided with acceleration sensor on the smoke baffle, acceleration sensor is used for detecting the first acceleration of the current perpendicular to smoke baffle setting direction, obtains the current angle of the smoke baffle that detects for smoke ventilator, includes: and acquiring a first acceleration, and calculating the current angle according to the first acceleration and the gravity acceleration.
In one embodiment, comparing the current force with the theoretical force and determining whether the smoke barrier currently collides with the obstacle based on the comparison comprises: acquiring a preset acting force threshold, and if the current acting force is greater than the sum of the theoretical acting force and the acting force threshold, determining that the smoke baffle collides with an obstacle currently; and if the current acting force is less than or equal to the sum of the theoretical acting force and the acting force threshold value, determining that the smoke baffle does not collide with the obstacle currently.
In one embodiment, the drive motor push rod performs a protective action comprising: the push rod of the driving motor stops extending or retracting; or the driving motor push rod moves towards the reverse direction of the current extending direction or retracting direction until the smoke baffle plate returns to the fully open state or the fully closed state.
In one embodiment, after the early warning prompt is sent out and the motor push rod is driven to execute the protection action, the method further comprises the following steps: and periodically acquiring the real-time acting force of the smoke baffle, and continuously driving the motor push rod to extend or retract when the real-time acting force is smaller than the sum of the theoretical acting force and the acting force threshold.
A computer-readable storage medium storing a computer program which, when executed by a processor, performs the steps of: acquiring an opening function and a closing function of the smoke baffle, wherein the opening function and the closing function are historical relation functions of the angle and the acting force of the smoke baffle in the opening and closing process; when the opening or closing of the smoke baffle is detected, the current angle of the detected smoke baffle relative to the range hood and the current acting force of the motor push rod on the smoke baffle at the current angle are obtained; substituting the current angle into the opening function or the closing function to calculate the theoretical acting force of the smoke baffle plate at the current angle; and comparing the current acting force with the theoretical acting force, determining whether the smoke baffle collides with the barrier currently according to the obtained comparison result, and if the smoke baffle collides with the barrier currently, sending an early warning prompt and driving a motor push rod to execute a protection action.
In one embodiment, obtaining the opening and closing functions of the smoke barrier comprises: acquiring historical angles of the detected smoke baffle in the opening and closing process and corresponding historical acting force under each historical angle; the historical angles and historical forces are fitted to obtain an open function and a closed function.
In one embodiment, be provided with acceleration sensor on the smoke baffle, acceleration sensor is used for detecting the first acceleration of the current perpendicular to smoke baffle setting direction, obtains the current angle of the smoke baffle that detects for smoke ventilator, includes: and acquiring a first acceleration, and calculating the current angle according to the first acceleration and the gravity acceleration.
In one embodiment, comparing the current force with the theoretical force and determining whether the smoke barrier currently collides with the obstacle based on the comparison comprises: acquiring a preset acting force threshold, and if the current acting force is greater than the sum of the theoretical acting force and the acting force threshold, determining that the smoke baffle collides with an obstacle currently; and if the current acting force is less than or equal to the sum of the theoretical acting force and the acting force threshold value, determining that the smoke baffle does not collide with the obstacle currently.
In one embodiment, the drive motor push rod performs a protective action comprising: the push rod of the driving motor stops extending or retracting; or the driving motor push rod moves towards the reverse direction of the current extending direction or retracting direction until the smoke baffle plate returns to the fully open state or the fully closed state.
In one embodiment, after the early warning prompt is sent out and the motor push rod is driven to execute the protection action, the method further comprises the following steps: and periodically acquiring the real-time acting force of the smoke baffle, and continuously driving the motor push rod to extend or retract when the real-time acting force is smaller than the sum of the theoretical acting force and the acting force threshold.
It should be noted that the method, the apparatus, the device and the computer-readable storage medium for controlling opening and closing of the smoke barrier belong to a general inventive concept, and the contents in the embodiments of the method, the apparatus, the device and the computer-readable storage medium for controlling opening and closing of the smoke barrier are applicable to each other.
It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by a computer program, which can be stored in a non-volatile computer-readable storage medium, and can include the processes of the embodiments of the methods described above when the program is executed. Any reference to memory, storage, database, or other medium used in the embodiments provided herein may include non-volatile and/or volatile memory, among others. Non-volatile memory can include read-only memory (ROM), Programmable ROM (PROM), Electrically Programmable ROM (EPROM), Electrically Erasable Programmable ROM (EEPROM), or flash memory. Volatile memory can include Random Access Memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in a variety of forms such as Static RAM (SRAM), Dynamic RAM (DRAM), Synchronous DRAM (SDRAM), Double Data Rate SDRAM (DDRSDRAM), Enhanced SDRAM (ESDRAM), Synchronous Link DRAM (SLDRAM), Rambus Direct RAM (RDRAM), direct bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM).
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above examples only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present application. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. The opening and closing control method of the smoke baffle is characterized by being applied to a smoke exhaust ventilator, wherein the smoke exhaust ventilator comprises the smoke baffle and a motor push rod, the motor push rod is connected with the smoke baffle and a box body of the smoke exhaust ventilator, the motor push rod extends out to drive the smoke baffle to be opened, and the motor push rod retracts to drive the smoke baffle to be closed;
the method comprises the following steps:
acquiring an opening function and a closing function of the smoke baffle, wherein the opening function and the closing function are historical relation functions of the angle and the acting force of the smoke baffle in the opening and closing process;
when the opening or closing of the smoke baffle is detected, the detected current angle of the smoke baffle relative to the range hood and the current acting force of the motor push rod on the smoke baffle at the current angle are obtained;
substituting the current angle into the opening function or the closing function to calculate the theoretical acting force of the smoke baffle at the current angle;
and comparing the current acting force with the theoretical acting force, determining whether the smoke baffle collides with an obstacle currently according to an obtained comparison result, and if the smoke baffle collides with the obstacle currently, sending an early warning to remind and driving the motor push rod to execute a protection action.
2. The method of claim 1, wherein said obtaining an opening function and a closing function of the smoke barrier comprises:
acquiring historical angles of the detected smoke baffle in the opening and closing process and corresponding historical acting force under each historical angle;
fitting the historical angle and the historical force to obtain the opening function and the closing function.
3. The method according to claim 1, wherein the motor push rod comprises a motor, a push rod and a load cell, the motor is fixed to a box body of the range hood, two ends of the push rod are respectively connected with the motor and the smoke baffle, and the load cell detects the current acting force along the push rod arrangement direction.
4. The method of claim 1, wherein the smoke barrier is provided with an acceleration sensor for detecting a first acceleration currently perpendicular to the direction in which the smoke barrier is disposed, and the obtaining of the detected current angle of the smoke barrier relative to the range hood comprises:
and acquiring the first acceleration, and calculating the current angle according to the first acceleration and the gravity acceleration.
5. The method of claim 1, wherein said comparing said current force with said theoretical force and determining if said smoke barrier is currently colliding with an obstacle based on the comparison comprises:
acquiring a preset acting force threshold, and if the current acting force is greater than the sum of the theoretical acting force and the acting force threshold, determining that the smoke baffle collides with the barrier currently; and if the current acting force is less than or equal to the sum of the theoretical acting force and the acting force threshold value, determining that the smoke baffle plate does not collide with the obstacle currently.
6. The method of claim 1, wherein said driving said motor pusher to perform a protective action comprises:
driving the motor push rod to stop extending or retracting; or the like, or, alternatively,
and driving the motor push rod to move in the direction opposite to the current extending direction or retracting direction until the smoke baffle plate returns to the fully-opened state or the fully-closed state.
7. The method of claim 6, wherein after the sending of the warning alert and the driving of the motor push rod to perform the protection action, further comprising:
and periodically acquiring the real-time acting force of the smoke baffle, and when the real-time acting force is smaller than the sum of the theoretical acting force and an acting force threshold, continuously driving the motor push rod to extend or retract.
8. The opening and closing control device is characterized by being applied to a smoke exhaust ventilator, wherein the smoke exhaust ventilator comprises a smoke baffle plate and a motor push rod, the motor push rod is connected with the smoke baffle plate and a box body of the smoke exhaust ventilator, the motor push rod extends out to drive the smoke baffle plate to be opened, and the motor push rod retracts to drive the smoke baffle plate to be closed;
the device comprises:
the function acquisition module is used for acquiring an opening function and a closing function of the smoke baffle, wherein the opening function and the closing function are historical relation functions of the angle and the acting force of the smoke baffle in the opening and closing processes;
the control parameter acquisition module is used for acquiring the detected current angle of the smoke baffle plate relative to the range hood and the current acting force of a motor push rod on the smoke baffle plate at the current angle when the smoke baffle plate is detected to be opened or closed;
the theoretical parameter calculation module is used for substituting the current angle into the opening function or the closing function to calculate the theoretical acting force of the smoke baffle at the current angle;
and the opening and closing control module is used for comparing the current acting force with the theoretical acting force, determining whether the smoke baffle plate collides with an obstacle currently according to the obtained comparison result, and sending out early warning to remind and drive the motor push rod to execute protection action if the smoke baffle plate collides with the obstacle currently.
9. A computer-readable storage medium, in which a computer program is stored which, when being executed by a processor, causes the processor to carry out the steps of the method according to any one of claims 1 to 7.
10. A range hood comprising a memory and a processor, wherein the memory stores a computer program which, when executed by the processor, causes the processor to perform the steps of the method of any one of claims 1 to 7.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110502472.7A CN113339856A (en) | 2021-05-08 | 2021-05-08 | Opening and closing control method, device, equipment and medium for smoke baffle |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110502472.7A CN113339856A (en) | 2021-05-08 | 2021-05-08 | Opening and closing control method, device, equipment and medium for smoke baffle |
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