CN110568787B - Electric curtain control system and method capable of stopping at any time when being pulled - Google Patents
Electric curtain control system and method capable of stopping at any time when being pulled Download PDFInfo
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- CN110568787B CN110568787B CN201910759077.XA CN201910759077A CN110568787B CN 110568787 B CN110568787 B CN 110568787B CN 201910759077 A CN201910759077 A CN 201910759077A CN 110568787 B CN110568787 B CN 110568787B
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47H—FURNISHINGS FOR WINDOWS OR DOORS
- A47H5/00—Devices for drawing draperies, curtains, or the like
- A47H5/02—Devices for opening and closing curtains
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0423—Input/output
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/25—Pc structure of the system
- G05B2219/25257—Microcontroller
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- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Power-Operated Mechanisms For Wings (AREA)
Abstract
The invention discloses a system and a method for controlling an electric curtain capable of stopping along with pulling, which comprises the following steps: acquiring control information, and controlling the curtain to correspondingly operate, wherein the control information comprises an opening instruction and a closing instruction; when the curtain starts to operate, initializing the current maximum load current of the motor, acquiring the instantaneous load current of the motor at intervals of a threshold value, and setting the instantaneous load current of alpha times as the current maximum load current of the motor; and judging whether the instantaneous load current of the motor at the next moment is larger than the current maximum load current of the motor, and if so, controlling the motor to stop running. The invention can automatically stop the motor by using smaller pulling force when children or old people and other groups with weaker action ability use smaller pulling force, really realize the purpose of stopping along with pulling, and also can control the motor to stop when other smaller resistance occurs, thereby avoiding the problems that the curtain is easy to be pulled out, the belt of the curtain is easy to break and the failure rate of the motor is higher to a certain extent.
Description
Technical Field
The invention relates to the field of curtain control, in particular to a system and a method for controlling an electric curtain capable of being stopped along with pulling.
Background
The motorized window shades on the market today often stop only when they encounter a large resistance, and thus are available to the normal customer population. However, if facing children or the elderly with weak mobility, the electric curtain in the market is difficult to meet the requirements of the children or the elderly, and if the electric curtain can be stopped with a large resistance during use, the problems that the curtain is easy to be pulled out, the belt of the curtain is easy to break, and the failure rate of the motor is high are easy to occur during use.
Therefore, there is an urgent need in the current market for a system and a method for controlling an electric curtain capable of stopping while pulling, which can automatically stop a motor by using a small pulling force in a group with weak mobility such as a child or an old person, can protect the group with weak mobility such as the child or the old person to a certain extent, really achieve the purpose of stopping while pulling, and can avoid the problems that the curtain is easily broken by pulling, the belt of the curtain is easily broken, and the failure rate of the motor is high to a certain extent.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the system and the method for controlling the electric curtain capable of stopping along with pulling can be used for automatically stopping children or the old with weak action ability by using small pulling force, so that the 'stopping along with pulling' is really realized.
The solution of the invention for solving the technical problem is as follows:
a control method of a power-driven curtain capable of stopping along with pulling is provided, which comprises the following steps:
acquiring control information, and controlling the curtain to correspondingly operate, wherein the control information comprises an opening instruction and a closing instruction;
when the curtain starts to operate, initializing the current maximum load current of the motor, acquiring the instantaneous load current of the motor at intervals of a threshold value, and setting the instantaneous load current of alpha times as the current maximum load current of the motor;
and judging whether the instantaneous load current of the motor at the next moment is larger than the current maximum load current of the motor, and if so, controlling the motor to stop running.
As a further improvement of the above technical solution, the operation of initializing the current maximum load current of the motor is specifically to set the current maximum load current of the motor to a first fixed value.
As a further improvement of the above, further comprising,
when control information is received to correspondingly operate the window curtain, the number of pulses of the motor from starting to stopping operation in the operation is obtained;
judging whether the number of pulses of the motor is lower than the theoretical number of pulses or not, if so, judging that the operation is in disorder;
and the theoretical pulse number is obtained by conversion according to the actual travel distance of the on command or the off command.
As a further improvement of the above, further comprising,
when the travel is disordered, acquiring the stress condition of the curtain, judging whether the instantaneous resultant force borne by the curtain is greater than a first threshold value, and if so, controlling the motor to clear 0 the travel of the curtain;
the stroke clear 0 means that the curtain is in a no-stroke state and the stroke needs to be reset.
As a further improvement of the above, further comprising,
when the motor is in an operating state or a stopping state, acquiring the power supply condition of the motor;
if the power failure condition occurs, the current travel information of the motor is reserved, and when the power is switched on next time, the motor is controlled to move the curtain to the position corresponding to the current travel information.
As a further improvement of the above, α is a second fixed value.
Also provides a control system of the electric curtain which can stop along with pulling, comprising,
the load current acquisition module is used for acquiring the instantaneous load current of the motor;
a processing module, the processing module comprising:
the control subunit is used for receiving the control information and controlling the curtain to correspondingly operate;
an initialization subunit, configured to initialize a current maximum load current of the motor when the window shade starts to operate;
the current maximum load current setting subunit is used for setting the current maximum load current according to the acquired instantaneous load current;
and the current comparison subunit is used for comparing the instantaneous load current of the motor at the later moment with the current maximum load current of the motor, and controlling the motor to stop running when the instantaneous load current of the motor at the later moment is greater than the current maximum load current of the motor.
As a further improvement of the above, further comprising,
the pulse acquisition module is used for acquiring the number of pulses of the motor from starting to stopping running in the process of executing a control command once.
As a further improvement of the above, further comprising,
and the stress acquisition module is used for acquiring the stress condition of the curtain, judging whether the instantaneous resultant force borne by the curtain is greater than a first threshold value or not, and if so, controlling the motor to clear 0 the stroke of the curtain.
As a further improvement of the above, further comprising,
and the power-off memory module is used for keeping the current travel information of the motor when the power-off condition occurs, and controlling the motor to move the curtain to the position corresponding to the current travel information when the curtain is powered on next time.
The invention has the beneficial effects that: the invention provides a system and a method for controlling an electric curtain capable of stopping along with pulling, which can automatically stop when a small pulling force is applied to a group with weak action capability, such as children or old people, and the like, and can play a certain protection role for the group with weak action capability, such as children or old people, so that the 'along with pulling and stopping' can be really realized, and the problems that the curtain is easy to be pulled out, the belt of the curtain is easy to break and the failure rate of a motor is high can be avoided to a certain extent.
Drawings
In order to more clearly illustrate the technical solution in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below. It is clear that the described figures are only some embodiments of the invention, not all embodiments, and that a person skilled in the art can also derive other designs and figures from them without inventive effort.
FIG. 1 is a flow chart of a method for controlling a motorized window treatment that stops when being pulled.
Detailed Description
The conception, the specific structure, and the technical effects produced by the present invention will be clearly and completely described below in conjunction with the embodiments and the accompanying drawings to fully understand the objects, the features, and the effects of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and those skilled in the art can obtain other embodiments without inventive effort based on the embodiments of the present invention, and all embodiments are within the protection scope of the present invention. In addition, all the connection relations mentioned herein do not mean that the elements are directly connected, but mean that a more preferable circuit structure can be formed by adding or reducing the connection elements according to the specific implementation. All technical characteristics in the invention can be interactively combined on the premise of not conflicting with each other.
With reference to fig. 1, the present invention provides a method for controlling a motorized window curtain that stops when being pulled, which includes the following steps:
acquiring control information, and controlling the curtain to correspondingly operate, wherein the control information comprises an opening instruction and a closing instruction;
when the curtain starts to operate, initializing the current maximum load current of the motor, acquiring the instantaneous load current of the motor at intervals of a threshold value, and setting the instantaneous load current of alpha times as the current maximum load current of the motor;
and judging whether the instantaneous load current of the motor at the next moment is larger than the current maximum load current of the motor, and if so, controlling the motor to stop running.
In specific operation, firstly, a current maximum load current is given to the motor, the maximum load current can be dynamic or static (specifically, how to initialize the maximum load current can be automatically set by a worker), then, the instantaneous load current of the motor is detected at intervals of a threshold time, the threshold time is automatically set by the worker, the threshold time is set to be 1S in the embodiment, then, the instantaneous load current which is multiplied by alpha is set to be the current maximum load current of the motor, namely, the current maximum load current of the motor is dynamically updated, an updating coefficient is alpha, the alpha can be a dynamic coefficient or a static coefficient (namely, a fixed value), then, whether the instantaneous load current of the motor at the next moment is larger than the current maximum load current of the motor or not is judged, and if so, the motor is controlled to stop running. The instantaneous load current of the motor can be changed by artificially pulling the curtain, the motor can be automatically stopped by using a small pulling force when children or old people and other groups with weaker action ability use the control coefficient alpha, and the problem that the curtain is easily damaged by pulling, the belt of the curtain is easily broken and the failure rate of the motor is high can be avoided to a certain extent.
As a further improvement of the above, α is a second fixed value. In the present embodiment, α is set to a static fixed value, specifically 1.1. According to the pulling force which can be generated by the actual group with weaker mobility, such as the child or the old, and the interference force which can be possibly brought by the environment, the alpha is set to be 1.1, so that the interference of the environment can be prevented, the pulling force which can be generated by the group with weaker mobility, such as the child or the old, can be accurately and assuredly detected, and the method is very effective. Of course, the worker can also perform specific setting according to actual conditions.
As a further improvement of the above technical solution, the operation of initializing the current maximum load current of the motor is specifically to set the current maximum load current of the motor to a first fixed value. In the present embodiment, the current maximum current of the motor is set to the first fixed value, i.e. the static value, when the current maximum load current of the motor is initialized, specifically, the first fixed value is set to 1A in the present embodiment, and the staff may adjust the current maximum load current according to the specific situation.
As a further improvement of the above, further comprising,
when control information is received to correspondingly operate the window curtain, the number of pulses of the motor from starting to stopping operation in the operation is obtained;
judging whether the number of pulses of the motor is lower than the theoretical number of pulses or not, if so, judging that the operation is in disorder;
and the theoretical pulse number is obtained by conversion according to the actual travel distance of the on command or the off command.
The above-mentioned actual forming distance means that if the last on command or off command controls the motor stroke to 20cm and the on command or off command controls the motor stroke to 70cm, the actual stroke distance is 50 cm.
In this embodiment, specifically, if the actual stroke distance of the motor is controlled to 50cm by sending the on command, it can be known how many pulses the corresponding motor needs to run when the actual stroke distance of the motor is 50cm according to the encoder, if the number of pulses the motor runs from the start to the stop of running during the execution of this operation is less than the theoretical number of pulses (i.e., the number of pulses the motor needs to run when the actual stroke distance of the motor is 50 cm), the stroke of this time is defined as the stroke disorder.
As a further improvement of the above, further comprising,
when the travel is disordered, acquiring the stress condition of the curtain, judging whether the instantaneous resultant force borne by the curtain is greater than a first threshold value, and if so, controlling the motor to clear 0 the travel of the curtain;
the stroke clear 0 means that the curtain is in a no-stroke state and the stroke needs to be reset.
It should be explained that, in the present embodiment, the electric curtains all calculate the distance of curtain movement through the encoder, so as to determine the stroke of the curtain, and the stroke of the curtain all takes the curtain being in the closed state as a reference, which is the distance of curtain movement from the closed state to the open state, that is, if the stroke of the motor is clear 0, the next time the stroke of the motor is controlled to be 0, the motor will control the curtain to close.
In the present embodiment, if the above-mentioned travel disorder occurs, such as the user pulls the curtain to stop the curtain, or the motor itself occurs, the travel of the motor can be cleared to 0 by slightly pulling the curtain if the travel disorder occurs in the motor.
As a further improvement of the above, further comprising,
when the motor is in an operating state or a stopping state, acquiring the power supply condition of the motor;
if the power failure condition occurs, the current travel information of the motor is reserved, and when the power is switched on next time, the motor is controlled to move the curtain to the position corresponding to the current travel information.
In the present embodiment, a power-off memory stroke function is added, and emergency such as sudden power-off can be prevented to a certain extent.
Also provides a control system of the electric curtain which can stop along with pulling, comprising,
the load current acquisition module is used for acquiring the instantaneous load current of the motor;
a processing module, the processing module comprising:
the control subunit is used for receiving the control information and controlling the curtain to correspondingly operate;
an initialization subunit, configured to initialize a current maximum load current of the motor when the window shade starts to operate;
the current maximum load current setting subunit is used for setting the current maximum load current according to the acquired instantaneous load current;
and the current comparison subunit is used for comparing the instantaneous load current of the motor at the later moment with the current maximum load current of the motor, and controlling the motor to stop running when the instantaneous load current of the motor at the later moment is greater than the current maximum load current of the motor.
As a further improvement of the above, further comprising,
the pulse acquisition module is used for acquiring the number of pulses of the motor from starting to stopping running in the process of executing a control command once.
As a further improvement of the above, further comprising,
and the stress acquisition module is used for acquiring the stress condition of the curtain, judging whether the instantaneous resultant force borne by the curtain is greater than a first threshold value or not, and if so, controlling the motor to clear 0 the stroke of the curtain.
As a further improvement of the above, further comprising,
and the power-off memory module is used for keeping the current travel information of the motor when the power-off condition occurs, and controlling the motor to move the curtain to the position corresponding to the current travel information when the curtain is powered on next time.
The modules described as separate parts may or may not be physically separate, and parts displayed as modules may or may not be physical modules, may be located in one place, or may be distributed on a plurality of network modules. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment.
In addition, functional modules in the embodiments of the present invention may be integrated into one processing module, or each of the modules may exist alone physically, or two or more modules are integrated into one module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode.
The integrated module, if implemented in the form of a software functional module and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, all or part of the flow of the method according to the embodiments of the present invention may also be implemented by a computer program, which may be stored in a computer-readable storage medium and can implement the steps of the above-described method embodiments when the computer program is executed by a processor. Wherein the computer program comprises computer program code, which may be in the form of source code, object code, an executable file or some intermediate form, etc. The computer-readable medium may include: any entity or device capable of carrying the computer program code, recording medium, usb disk, removable hard disk, magnetic disk, optical disk, computer Memory, Read-Only Memory (ROM), Random Access Memory (RAM), electrical carrier wave signals, telecommunications signals, software distribution medium, and the like. It should be noted that the computer readable medium may contain other components which may be suitably increased or decreased as required by legislation and patent practice in jurisdictions, for example, in some jurisdictions, computer readable media which may not include electrical carrier signals and telecommunications signals in accordance with legislation and patent practice.
While the present invention has been described in considerable detail and with particular reference to a few illustrative embodiments thereof, it is not intended to be limited to any such details or embodiments or any particular embodiments, but it is to be construed as effectively covering the intended scope of the invention by providing a broad, potential interpretation of such claims in view of the prior art with reference to the appended claims. Furthermore, the foregoing describes the invention in terms of embodiments foreseen by the inventor for which an enabling description was available, notwithstanding that insubstantial modifications of the invention, not presently foreseen, may nonetheless represent equivalent modifications thereto.
The above description is only a preferred embodiment of the present invention, and the present invention is not limited to the above embodiment, and the present invention shall fall within the protection scope of the present invention as long as the technical effects of the present invention are achieved by the same means. The invention is capable of other modifications and variations in its technical solution and/or its implementation, within the scope of protection of the invention.
Claims (10)
1. A control method of an electric curtain capable of being stopped along with pulling is characterized by comprising the following steps:
acquiring control information, and controlling the curtain to correspondingly operate, wherein the control information comprises an opening instruction and a closing instruction;
when the curtain starts to operate, initializing the current maximum load current of the motor, acquiring the instantaneous load current of the motor at intervals of a threshold value, and setting the instantaneous load current of alpha times as the current maximum load current of the motor; dynamically updating the current maximum load current of the motor, wherein the updating coefficient is alpha;
and judging whether the instantaneous load current of the motor at the next moment is larger than the current maximum load current of the motor, and if so, controlling the motor to stop running.
2. The method for controlling a pull-stop electric window curtain as claimed in claim 1, wherein: the operation of initializing the present maximum load current of the motor is specifically to set the present maximum current of the motor to a first fixed value.
3. The method for controlling a pull-stop electric window curtain as claimed in claim 1, wherein: also comprises the following steps of (1) preparing,
when control information is received to correspondingly operate the window curtain, the number of pulses of the motor from starting to stopping operation in the operation is obtained;
judging whether the number of pulses of the motor is lower than the theoretical number of pulses or not, if so, judging that the operation is in disorder;
and the theoretical pulse number is obtained by conversion according to the actual travel distance of the on command or the off command.
4. The method for controlling a pull-stop electric window curtain as claimed in claim 3, wherein: also comprises the following steps of (1) preparing,
when the travel is disordered, acquiring the stress condition of the curtain, judging whether the instantaneous resultant force borne by the curtain is greater than a first threshold value, and if so, controlling the motor to clear 0 the travel of the curtain;
the stroke clear 0 means that the curtain is in a no-stroke state and the stroke needs to be reset.
5. The method for controlling a pull-stop electric window curtain as claimed in any one of claims 1, 2 and 4, wherein: also comprises the following steps of (1) preparing,
when the motor is in an operating state or a stopping state, acquiring the power supply condition of the motor;
if the power failure condition occurs, the current travel information of the motor is reserved, and when the power is switched on next time, the motor is controlled to move the curtain to the position corresponding to the current travel information.
6. The method for controlling a pull-stop electric window curtain as claimed in claim 1, wherein: and the alpha is a second fixed value.
7. A pull-stop-after-pull electric curtain control system is characterized in that: comprises the steps of (a) preparing a mixture of a plurality of raw materials,
the load current acquisition module is used for acquiring the instantaneous load current of the motor;
a processing module, the processing module comprising:
the control subunit is used for receiving the control information and controlling the curtain to correspondingly operate;
an initialization subunit, configured to initialize a current maximum load current of the motor when the window shade starts to operate;
the current maximum load current setting subunit is used for setting the current maximum load current according to the acquired instantaneous load current; dynamically updating the current maximum load current of the motor, wherein the updating coefficient is alpha;
and the current comparison subunit is used for comparing the instantaneous load current of the motor at the later moment with the current maximum load current of the motor, and controlling the motor to stop running when the instantaneous load current of the motor at the later moment is greater than the current maximum load current of the motor.
8. The pull-stop electric window covering control system according to claim 7, wherein: also comprises the following steps of (1) preparing,
the pulse acquisition module is used for acquiring the number of pulses of the motor from starting to stopping running in the process of executing a control command once.
9. The pull-stop electric window covering control system according to claim 8, wherein: also comprises the following steps of (1) preparing,
and the stress acquisition module is used for acquiring the stress condition of the curtain, judging whether the instantaneous resultant force borne by the curtain is greater than a first threshold value or not, and if so, controlling the motor to clear 0 the stroke of the curtain.
10. A pull-stop motorized window treatment control system according to any one of claims 7, 8 and 9, wherein: also comprises the following steps of (1) preparing,
and the power-off memory module is used for keeping the current travel information of the motor when the power-off condition occurs, and controlling the motor to move the curtain to the position corresponding to the current travel information when the curtain is powered on next time.
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| CN201910759077.XA CN110568787B (en) | 2019-08-16 | 2019-08-16 | Electric curtain control system and method capable of stopping at any time when being pulled |
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| CN201910759077.XA CN110568787B (en) | 2019-08-16 | 2019-08-16 | Electric curtain control system and method capable of stopping at any time when being pulled |
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Families Citing this family (4)
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| CN110623510A (en) * | 2019-09-29 | 2019-12-31 | 珠海格力电器股份有限公司 | Control method and system of intelligent curtain |
| TWI767446B (en) * | 2020-12-11 | 2022-06-11 | 億豐綜合工業股份有限公司 | Electric curtains |
| CN113945842B (en) * | 2020-07-17 | 2024-07-19 | 深圳绿米联创科技有限公司 | Method for detecting enclasping of curtain motor, curtain motor and curtain |
| CN112731821B (en) * | 2020-12-18 | 2023-03-24 | 卧安科技(深圳)有限公司 | Equipment movement method and electronic equipment |
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