Window opener or door lifter travel control system and its control method
Technical field
The present invention relates to window opener or door lifter field, more particularly to a kind of window opener or door lifter Stroke Control
System and its control method.
Background technology
As the improvement of people's living standards, increasing factory, smart home used electric window-opening or
Open-door system.Intelligence windowing or open-door system are connected by functional unit with window opener or door lifter, Ke Yishi
Now switch door and window.In order to control rate of air circulation, it is necessary to which the aperture to door and window is required.
In patent CN201420164272, disclose direct current generator afterbody and be provided with motor shaft end copper sheathing,
Shaft end magnetic pole is connected on motor shaft end copper sheathing, the Hall element of magnetic induction is provided with circuit board assemblies, is passed through
Detect the signal intensity of Hall element, the number of turns that identification motor is rotated.This patent needs individually increase Hall member
Part, and need to increase hall signal Acquisition Circuit so that system complexity increase.
In patent US2006038519B2, equally disclose and carry out window position identification using Hall subassembly,
This is close with patent CN201420164272 ideas.In patent EP0640740B1, disclose using electricity
Standalone sensor beyond machine body is counted, and the determination of actual window position is carried out with this.
In summary several patents, find to be required for increasing the standalone sensor beyond motor in these patents
The physical location of door or window is just perceived, and then is operated accordingly, its mechanical structure, control method are multiple
Miscellaneous, construction costs is high.
The content of the invention
The present invention be directed to the deficiencies in the prior art, there is provided a kind of window opener or door lifter Stroke Control
System and its control method.
The present invention is realized by the following technical programs:A kind of window opener or door lifter Stroke Control system
System, including:Motor, reduction box, executing agency, the mounting seat being connected with window OR gate moving part,
Control board;Control board gathers the electric signal from motor in itself, judges direction of motor rotation and turns
Moving-coil number, while coordinating the gearratio of reduction box, to control the physical location of window OR gate, its detailed process is retouched
State as follows.
Preferably:Control board gathers the back-emf signal of each phase winding of motor, determines the rotation direction of motor
With the rotation number of turns;Coordinate the gearratio of reduction box, the physical location of window OR gate can be controlled.
Preferably:The optional position that the stroke of the window opener or door lifter can be stopped in open and close stroke;
Preferably:The motor is stepper motor or brushless electric machine;
Preferably:Control board by gathering the counter electromotive force variation characteristic of motor stator coil, it is determined that
The rotation direction and the rotation number of turns of motor;
Preferably:Further comprise functional unit, the functional unit is potentiometer, or remote control;
Preferably:The window OR gate aperture that the control board gives according to functional unit is set, control driving electricity
Machine is actually needed the number of turns of rotation, to coordinate the gearratio of reduction box, controls the physical location of window OR gate;
Preferably:Further comprise position display part;The control board turns the motor under current state
Moving-coil number or equivalent data are transmitted to position display part;
Preferably:The position display part can be the physical location by many LED indicating window OR gates,
It can be the physical location by LCDs indicating window OR gate;
Preferably:Further comprise memory, the memory is used to store the number of turns that current motor is turned over
Or equivalent data, to record the physical location of current window or door body, when system cut-off or restarting
Afterwards, control system still can know that current window or the physical location of door.
The invention discloses a kind of control method including above-mentioned window opener or door lifter travel control system.
Beneficial effect:The number of turns turned over using detection motor and direction, simplify System control structures,
By handling gathered data, hardware component is eliminated, the control accuracy of door or window is improved, reduced
Product cost.
Brief description of the drawings
Fig. 1 is permanent magnet drive motor rotation signal in window opener of the present invention or door lifter travel control system
Figure
Fig. 2 is each phase winding of permanent magnet drive motor in window opener of the present invention or door lifter travel control system
Back-emf schematic diagram
Fig. 3 is functional unit system schematic in window opener of the present invention or door lifter travel control system
Fig. 4 is display unit system schematic in window opener of the present invention or door lifter travel control system
Fig. 5 is the built-in storage of control panel in window opener of the present invention or door lifter travel control system
Fig. 6 is control method block diagram in window opener of the present invention or door lifter travel control system
Fig. 7 is window opener practical application structure chart in window opener of the present invention or door lifter travel control system;
Fig. 8 is window opener structure chart in window opener of the present invention or door lifter travel control system.
Wherein:1st, control board, 2, executing agency, 3, motor, 4, mounting seat, 5, solid
Determine frame, 6, window opener, 7, window opener shell, 8, reduction box, 9 movable window frames.
Embodiment
Embodiment (1)
Referring to shown in Fig. 1-Fig. 2, Fig. 7-Fig. 8.A kind of window opener or door lifter travel control system,
Including:Motor, reduction box, executing agency, the mounting seat being connected with window OR gate moving part, control
Circuit board;Control panel acquires each phase winding back-emf signal of motor, calculates motor rotation
Direction and the rotation number of turns, while coordinating the gearratio of reduction box, to control the physical location of window OR gate.It is described
Motor can be stepper motor or brushless electric machine.
As shown in figure 1, being the profile of motor, example is inner rotor motor structure chart, its principle
External rotor electric machine is equally applicable to, is only explained here with inner rotor motor figure.Its outer stator is led for energization
Line winding, its inner rotator is permanent magnet, and the stationary part of motor has at least 3 phase windings, when motor is rotated
When, different back-emf e can be produced on A, B, C three-phase windingsa、eb、ec, according to A, B, C tri-
Phase winding back-emf ea、eb、ecSequential, it can be determined that go out the steering of motor, according to A, B, C three-phase
Winding back-emf ea、eb, e number of repetition, can obtain motor rotation the number of turns.
According to Fig. 1, motor is rotated after a circle, and its A, B, C three-phase windings can produce back-emf ea、eb、
ec, each corresponding curve of phase winding back-emf of its motor is as shown in Figure 2.
According to the rotation of motor, for example, rotate clockwise, can be produced in T1, T2, T3, T4, T5, T6
The raw back-emf signal as shown in following table, after 6 beats are turned over, can repeat the cycle above, so
The beat of record following table represents that motor is being rotated clockwise, and records the periodicity of repetition, represents that motor is turned over
Electrical angle.If the rotor of motor is a pair of magnetic poles, i.e., one N poles, the electrical angle of S poles, then motor
Identical with the mechanical angle turned over, i.e. 360 degree of electrical angle, motor has actually also turned over 360 degree.If electric
The rotor of machine is two pairs of magnetic poles, i.e., two N poles, S poles, then the electrical angle of motor is the mechanical angle turned over
2 times, i.e. 360 degree of electrical angle, motor is actual to have turned over 180 degree, with this proportional analogy.When an electricity
After the completion of machine actual fabrication, its magnetic pole logarithm is it has been determined that electrical angle and the relation of mechanical angle are also determined that
, this relation can be written in control program, be known that the actual number of turns turned over of motor.
The back-emf time-scale (direction one) that the motor of table 1 is rotated clockwise
According to the rotation of motor, for example, rotate counterclockwise, can be produced in T1, T2, T3, T4, T5, T6
Back-emf signal as shown in following table, after 6 beats are turned over, can repeat cycle above, so record
The beat of following table represents that motor is being rotated counterclockwise, and records the periodicity of repetition, represents the electricity that motor is turned over
Angle.After the completion of a motor actual fabrication, its magnetic pole logarithm is it has been determined that electrical angle and mechanical angle
Relation also determine that, this relation can be written in control program, be known that motor is actual and turn over
The number of turns.
|
T1 |
T2 |
T3 |
T4 |
T5 |
T6 |
T1’ |
T2’ |
… |
A opposite potentials ea |
- |
- |
- |
+ |
+ |
+ |
- |
- |
… |
B opposite potentials eb |
- |
+ |
+ |
+ |
- |
- |
- |
+ |
… |
C opposite potentials ec |
+ |
+ |
- |
- |
- |
+ |
+ |
+ |
… |
The back-emf time-scale (direction two) that the motor of table 2 is rotated counterclockwise
Embodiment 2
Referring to shown in Fig. 3, Fig. 7-Fig. 8.A kind of window opener or door lifter travel control system, including:
Functional unit, motor, reduction box, executing agency, the mounting seat being connected with window OR gate moving part,
Control board;The window OR gate aperture that control board can give according to functional unit is set, controlled motor
The number of turns and the direction of rotation are actually needed, to coordinate the gearratio of reduction box, the physical location of window OR gate is controlled;
Its functional unit can be potentiometer, or remote control.Functional unit can control window by two ways
The physical location of OR gate, first way:Functional unit provides a relative percentage, and such as potentiometer is expired
Resistance is 10K, and actual potentiometer relative quantity has been transferred at 5K resistances, then control panel just receives signal,
It is required that window is reached into 50% position, due in actual installation, the license maximum position of windowing it has been determined that
Such as maximum windowing position is 100mm, and the gearratio of gear-box is 1000:1, window movement 1mm, motor
Need to rotate 1000 circles, if window is reached at 50% position, then motor is accomplished by positive (windowing)
50*1000 circles are rotated, i.e., 50000 circles turn if the signal that control panel is collected shows that motor is positive
50000 circles are moved, expression reaches setting position.The second way:Functional unit directly gives a numerical value,
Such as open a window 50mm, then control panel determines that motor is positive (windowing) according to the motor signal collected
It has rotated 50000 circles.
Embodiment 3
Referring to shown in Fig. 4, Fig. 7-Fig. 8.A kind of window opener or door lifter travel control system, including:
Position display part, motor, reduction box, executing agency, the installation being connected with window OR gate moving part
Seat, control board;Control board can by motor has been rotated through under motor current state the number of turns and
Direction, or its equivalent data (percentage), are transmitted to position display part;Its position display part can be with
It is that many LEDs indicate the position of actual window OR gate or the position of the actual window OR gate of liquid crystal display.Its
It can be the data communication mode for using standard that the signal between control panel of middle position display unit, which is connected,
Directly it is connected such as RSA32, RS485 interface standard or using multiple conducting wires with LED, for
The lighting of LED is controlled or control panel provides a relative magnitude of voltage:For example, total travel
When reaching, the magnitude of voltage provided is 5V, when its actual aperture reaches 50%, provides the relatively electric of 2.5V
Pressure value.
Embodiment 4
Referring to shown in Fig. 5, Fig. 7-Fig. 8.A kind of window opener or door lifter travel control system, including:
Motor, reduction box, executing agency, the mounting seat being connected with window OR gate moving part, control board,
Storage device or independent storage on control panel;Control board is by gathering the anti-electricity of motor
Gesture information, using electrical angle and mechanical angle relation, is converted into the number of turns that motor is turned over, and will
This numerical value is stored in the CPU in control board or DSP nonvolatile storage, can also be stored
In SAM Stand Alone Memory on control panel, such as EPROM.The related data of motor rotation is have recorded, tooth is added
The relation of the gearratio of roller box, namely the physical location of current window or door body can be converted into, therefore can manage
The physical location that current window OR gate is stored for control board is solved, after system cut-off or restarting,
Control system still can know that current window or the physical location of door.
Embodiment 5
Referring to shown in Fig. 6, Fig. 7-Fig. 8.One kind includes window opener or door lifter stroke in above-described embodiment
The control method of control system.Control end artificially gives an input data:Such as it is actual expectation windowing
Distance values 300mm, or a relative percentage 50% aperture.This input data passes to control electricity
On the plate of road, motor is driven by the driving circuit section of control board, motor is carried out on request
Driving, the door and window for driving reduction box, executing agency's push-and-pull actual, when motor is rotated, each phase winding of motor
Upper to produce corresponding back-emf signal, now control board records corresponding counter electromotive force table, and by its turn
The number of turns and direction that motor has been rotated through are turned to, by display, current actual positions numerical value can be shown
Come, such as it is currently practical to have run at 200mm, 200mm is indirectly displayed as on display board, or according to pre-
If input data, show that current door and window has reached 60% position.
In electromotive force table renewal process, control panel stores current position data simultaneously, if now had
Have a power failure or other exceptions, current position data can be stored in corresponding nonvolatile storage, work as system
Recover after normal work, currently practical door and window state is still can know that, to ensure that system is working properly.
Many details are elaborated in the above description to fully understand the present invention.But more than
Description is only the preferred embodiment of invention, and the present invention can be with much different from other sides described above
Formula is implemented, therefore the present invention is not limited by specific implementation disclosed above.It is simultaneously any to be familiar with this area
Technical staff without departing from the scope of the technical proposal of the invention, all using the method and skill of the disclosure above
Art content makes many possible variations and modification to technical solution of the present invention, or be revised as equivalent variations etc.
Imitate embodiment.Every content without departing from technical solution of the present invention, the technical spirit according to the present invention is to the above
Any simple modifications, equivalents, and modifications that embodiment is done, still fall within technical solution of the present invention protection
In the range of.