CN107328016B - Air conditioner and detection control device and method for moving part in air conditioner - Google Patents
Air conditioner and detection control device and method for moving part in air conditioner Download PDFInfo
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- CN107328016B CN107328016B CN201710401694.3A CN201710401694A CN107328016B CN 107328016 B CN107328016 B CN 107328016B CN 201710401694 A CN201710401694 A CN 201710401694A CN 107328016 B CN107328016 B CN 107328016B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
- G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
- G01D5/14—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage
- G01D5/142—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage using Hall-effect devices
- G01D5/145—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage using Hall-effect devices influenced by the relative movement between the Hall device and magnetic fields
Abstract
The invention discloses an air conditioner and a detection control device and a method for a moving part in the air conditioner, wherein the device comprises: the magnetic ring is fixed on a driving part for driving the moving part, and a plurality of N magnetic poles or S magnetic poles are distributed on the detection surface of the magnetic ring at intervals; the Hall detection assembly is fixedly arranged close to the magnetic ring and induces the N magnetic pole or the S magnetic pole of the magnetic ring to generate an induction signal when the driving part drives the moving part to move; the control unit is connected with the Hall detection assembly and judges whether the moving part is blocked according to the sensing signal, so that whether the moving part is blocked is judged quickly, and the device is high in detection sensitivity, small in occupied space, low in cost, convenient to install, long in service life, stable and reliable.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to a detection control device for a moving part in an air conditioner, the air conditioner with the detection control device and a detection control method for the moving part in the air conditioner.
Background
The more and more the related air conditioners adopt a sliding switch door or other rotary motion devices, for example, the door panel is opened towards two sides or one side after the air conditioner is started, or a rotary component rotates to the position that the grille is aligned with the air outlet, and the door panel is closed or the rotary component rotates to the position that the baffle plate is aligned with the air outlet after the air conditioner is closed, so that the aesthetic degree of the product is greatly improved.
However, the power mechanism of the door panel is usually an open-loop control stepping motor, and the moment is large. If there is the foreign matter to block or close the in-process at the door plant and the in-process finger stretches in wherein carelessly, the control unit can not know and stall the motor, power unit is in interference state this moment to not only can cause the harm to the structure of product and electrical apparatus, if the finger presss from both sides wherein still can produce very big pain, seriously reduce the use of product and feel.
The other method is to detect whether the door plate is clamped or not by utilizing the principle that an inductance and capacitance parallel resonance circuit changes impedance of a parallel circuit due to inductance value after clamping an obstacle, but has limited service life and is likely to fail to detect after the running time is prolonged.
Disclosure of Invention
The present invention is directed to solving, at least to some extent, one of the technical problems in the related art. Therefore, an object of the present invention is to provide a detection control device for moving parts in an air conditioner, which can solve the problem that the jamming cannot be detected accurately in time.
Another object of the present invention is to provide an air conditioner. Another object of the present invention is to provide a method for controlling detection of moving parts in an air conditioner.
In order to achieve the above object, according to one aspect of the present invention, there is provided a detection control apparatus for a moving part in an air conditioner, comprising: the magnetic ring is fixed on a driving part for driving the moving part, and a plurality of N magnetic poles or S magnetic poles are distributed on the detection surface of the magnetic ring at intervals; the Hall detection assembly is fixedly arranged close to the detection surface of the magnetic ring, and induces the N magnetic pole or the S magnetic pole of the magnetic ring to generate an induction signal when the driving part drives the moving part to move; and the control unit is connected with the Hall detection assembly and judges whether the moving part is blocked or not according to the induction signal.
According to the detection control device for the moving part in the air conditioner, the magnetic pole of the magnetic ring which moves synchronously with the driving part can be induced by the Hall detection assembly fixedly arranged close to the magnetic ring to generate an induction signal, and then the control unit judges whether the moving part is blocked according to the received induction signal, so that the state of the moving part such as a door plate and the like can be detected in real time, whether the moving part is blocked can be quickly judged, so that corresponding measures can be taken to adjust the driving action of the driving part in time, the driving part is prevented from being damaged, and meanwhile, the user experience is improved. In addition, the device has the advantages of high detection sensitivity, small occupied space, low cost, convenience in installation, long service life, stability and reliability.
Preferably, when a plurality of N magnetic poles are distributed on the detection surface of the magnetic ring at intervals, a first blank area is distributed between two adjacent N magnetic poles; when a plurality of S magnetic poles are distributed on the detection surface of the magnetic ring at intervals, a second blank area is distributed between every two adjacent S magnetic poles.
Preferably, when a plurality of N magnetic poles are distributed on the detection surface of the magnetic ring at intervals, the width of each N magnetic pole is the same; or when a plurality of S magnetic poles are distributed on the detection surface of the magnetic ring at intervals, the width of each S magnetic pole is the same.
Preferably, the angular width of the magnetic region of the N-pole or the S-pole is obtained according to the following formula:
λ＝(π+arcsin(X/A)+arcsin(Y/A))/p，
wherein λ is the angular width of the magnetic region of the N magnetic pole or the S magnetic pole, a is the maximum magnetic flux density of the N magnetic pole or the S magnetic pole, X is the operating point of the hall detection assembly, Y is the release point of the hall detection assembly, and p is the number of the N magnetic pole or the S magnetic pole.
Preferably, the area angular width of the first blank area or the second blank area is obtained according to the following formula:
θ＝2π/p–λ
wherein θ is the angular width of the first blank region or the second blank region, λ is the angular width of the magnetic region of the N magnetic pole or the S magnetic pole, and p is the number of the N magnetic pole or the S magnetic pole.
Preferably, the hall detection assembly is a unipolar hall element, the unipolar hall element is matched with the magnetism of the magnetic poles on the magnetic ring, and when a plurality of N magnetic poles are distributed on the detection surface of the magnetic ring at intervals, the unipolar hall element is an N-pole hall element; when a plurality of S magnetic poles are distributed on the detection surface of the magnetic ring at intervals, the unipolar Hall element is an S-pole Hall element.
Preferably, the hall sensing element generates an active level when facing the N pole or the S pole, and generates an inactive level when facing the first empty area or the second empty area, the control unit includes: a timer for starting timing when the active level and the inactive level are switched to time a duration of the active level and a duration of the inactive level; and the control chip is connected with the timer and used for judging that the moving part is blocked when the duration of the effective level or the ineffective level is greater than a preset time threshold.
In order to achieve the above object, another aspect of the present invention provides an air conditioner including the above detection control device for moving parts in the air conditioner.
According to the air conditioner provided by the invention, the state of the moving part such as the door plate and the like can be detected in real time through the detection control device of the moving part, and whether the moving part is blocked or not can be quickly judged, so that corresponding measures can be taken to adjust the driving action of the driving part in time, the driving part is prevented from being damaged, and the user experience is improved. And the detection sensitivity is high, the occupied space is small, the cost is low, the installation is convenient, the service life is long, and the method is stable and reliable.
In order to achieve the above object, in another aspect, the present invention provides a method for detecting and controlling a moving part in an air conditioner, where the air conditioner includes a magnetic ring and a hall detection assembly, the magnetic ring is fixed on a driving part for driving the moving part, a plurality of N magnetic poles or S magnetic poles are distributed at intervals on a detection surface of the magnetic ring, and the hall detection assembly is fixed near the detection surface of the magnetic ring, and the method includes the following steps: when the driving part drives the moving part to move, the Hall detection assembly induces the N magnetic pole or the S magnetic pole of the magnetic ring to generate an induction signal; and judging whether the moving part is clamped or not according to the induction signal.
According to the detection control method for the moving part in the air conditioner, provided by the embodiment of the invention, the magnetic pole of the magnetic ring which moves synchronously with the driving part can be induced by the Hall detection assembly fixedly arranged close to the magnetic ring to generate the induction signal, and then whether the moving part is blocked or not is judged according to the received induction signal, so that the state of the moving part such as a door plate and the like can be detected in real time, whether the moving part is blocked or not is quickly judged, so that the driving action of the driving part can be adjusted by taking corresponding measures in time, the driving part is prevented from being damaged, and the user experience is improved. In addition, the method has the advantages of high detection sensitivity, small occupied space, low cost, convenience in installation, long service life, stability and reliability.
Preferably, a first blank area is distributed between two adjacent N magnetic poles or a second blank area is distributed between two adjacent S magnetic poles, the hall detection assembly generates an effective level when facing the N magnetic poles or the S magnetic poles, and generates an ineffective level when facing the first blank area or the second blank area, and the determining whether the moving part is jammed according to the sensing signal includes: starting timing when the active level and the inactive level are switched to time the duration of the active level and the duration of the inactive level; and when the duration of the effective level or the ineffective level is greater than a preset time threshold, judging that the moving part is blocked.
Drawings
Fig. 1 is a block diagram schematically illustrating a detection control apparatus for a moving part in an air conditioner according to an embodiment of the present invention;
FIG. 2a is a top view of a magnetic ring according to one embodiment of the present invention, wherein the magnetic ring is laterally magnetized
FIG. 2b is a side view of FIG. 2 a;
FIG. 3 is a schematic structural diagram of a magnetic ring according to an embodiment of the present invention, wherein the magnetic ring is end-magnetized;
fig. 4 is a schematic structural diagram of a detection control device for moving parts in an air conditioner according to an embodiment of the present invention, wherein a magnetic ring is laterally magnetized;
fig. 5 is a schematic structural diagram of a detection control device for moving parts in an air conditioner according to an embodiment of the present invention, wherein a magnetic ring is magnetized by end faces;
fig. 6 is a block diagram schematically illustrating a detection control apparatus for a moving part in an air conditioner according to an embodiment of the present invention;
FIG. 7 is a waveform diagram of the sensing signal output by the Hall sensing assembly according to one embodiment of the present invention, wherein the moving part is not stuck;
FIG. 8 is a waveform diagram of the sensing signal output by the Hall sensing assembly according to one embodiment of the present invention, wherein the moving part is stuck at time t 1;
FIG. 9 is a circuit schematic of a Hall sensing assembly according to one embodiment of the invention;
fig. 10 is a schematic view of a door panel of an air conditioner according to an embodiment of the present invention;
FIG. 11 is a schematic view of a mounting location of a drive component according to one embodiment of the invention; fig. 12 is a flowchart of a detection control method of a moving part in an air conditioner according to an embodiment of the present invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
Before describing an air conditioner and a detection control device and method for moving parts in the air conditioner according to an embodiment of the present invention, a door panel sticking detection technique in the related art will be briefly described.
The related art provides a sliding door detection control device, wherein a grating strip is additionally arranged on a door plate, a light emitting tube and a light receiving tube are respectively additionally arranged on two sides of the grating strip, a high-low level pulse feedback signal is generated by the interval light transmission of the grating strip when the door plate normally moves, and whether the door plate is clamped or not can be monitored by detecting the duration time of the high level or the low level.
The related art also proposes a sliding door detection control device, in which whether the door panel is stuck is detected by an impedance detection circuit, using the principle that an inductance value changes to cause a parallel circuit impedance change after an inductor and capacitor parallel resonance circuit clamps an obstacle.
For the detection control device in the first related art, the light emitting tube and the light receiving tube are respectively arranged on two sides of the grating, the structure is complex, the difficulty is high, and a certain gap is needed between the grating and the door panel. In addition, due to the adoption of the photoelectric principle, in order to avoid multiple factors such as ambient light interference, the light transmission and shading gaps of the grating cannot be too narrow, so that the duration time of high and low levels of feedback pulses is prolonged, the detection time of clamping stagnation is prolonged, the detection sensitivity is reduced, and pain can be sustained for a long time if fingers are clamped, so that the user cannot accept the feedback pulses.
For the detection control device in the second related art, the inductor used in the parallel circuit is a metal sheet with copper foil routing, the change of the inductance value is caused by the deformation of the metal sheet caused by an obstacle when the door panel is clamped, but the metal sheet is seriously extruded each time the door panel is closed, although the detection function is closed without the obstacle, the false detection cannot be caused, but the metal sheet is still seriously deformed, and the unrecoverable deformation or complete damage can be caused to the metal sheet after the detection control device is repeatedly closed, so that the service life of the device is limited, and the detection function is likely to fail after the operation time is prolonged. Moreover, the device is only suitable for a single-side door opening and closing device, cannot be used for a double-side door opening and closing device, is only suitable for clamping stagnation in the closing process, and cannot detect clamping stagnation in the opening process.
Based on the above, the embodiment of the invention provides a novel detection control device for moving parts in an air conditioner.
The following describes a detection control device for a moving part in an air conditioner according to an embodiment of an aspect of the present invention with reference to fig. 1 to 11, in which the detection control device for a moving part is used to detect whether a moving part, such as a door panel, is jammed or meets an obstacle.
As shown in fig. 1 to 5, the detection control device for a moving part in an air conditioner according to an embodiment of the present invention includes: magnetic ring 10, hall detection component 20 and control unit 30.
The magnetic ring 10 is fixed on a driving part of a driving moving part, and a plurality of N magnetic poles or S magnetic poles are distributed on the detection surface of the magnetic ring 10 at intervals. According to an embodiment of the present invention, when a plurality of N magnetic poles are distributed on the detection surface of the magnetic ring 10 at intervals, a first blank area is distributed between two adjacent N magnetic poles; when a plurality of S magnetic poles are distributed on the detection surface of the magnetic ring 10 at intervals, a second blank area is distributed between two adjacent S magnetic poles. That is, when the magnetic ring 10 is filled with N magnetic poles at intervals, the N magnetic poles and the first blank area are distributed at intervals on the detection surface of the magnetic ring 10, that is, the arrangement rule on the magnetic ring 10 is N magnetic poles-first blank area-N magnetic poles-first blank area; when the magnetic ring 10 is filled with the S magnetic poles at intervals, the S magnetic poles and the blank regions are distributed at intervals on the detection surface of the magnetic ring 10, that is, the arrangement rule of the magnetic ring 10 is S magnetic pole-second blank region-S magnetic pole-second blank region, wherein the blank regions include the first blank region or the second blank region without any magnetism, that is, without any magnetism. Thus, in the embodiment of the present invention, the magnetic ring 10 is a unipolar magnetic ring.
The Hall detection assembly 20 is matched with the magnetism of the magnetic poles on the detection surface of the magnetic ring 10, the Hall detection assembly 20 is fixedly arranged close to the detection surface of the magnetic ring 10, and the Hall detection assembly 20 induces the N magnetic pole or the S magnetic pole of the magnetic ring 10 to generate an induction signal when the driving part drives the moving part to move. It should be noted that the hall detection assembly 20 may be disposed opposite to the detection surface of the magnetic ring 10, and the hall detection assembly 20 may be disposed in the magnetic field induction range of the magnetic ring 10 near the magnetic ring 10 without contacting.
Specifically, the circular magnetic ring 10 may be filled with N magnetic poles and first blank areas at intervals, when the driving part drives the moving part to move, the N magnetic poles and the blank areas may alternately pass through the hall sensing assembly 20, and the hall sensing assembly 20 outputs a corresponding sensing signal according to the sensed magnetic pole change. Or, the circular magnetic ring 10 may be filled with the S magnetic pole and the second blank area at intervals, when the driving part drives the moving part to move, the S magnetic pole and the second blank area may alternately pass through the hall sensing assembly 20, and the hall sensing assembly 20 outputs a corresponding sensing signal according to the sensed magnetic pole change.
The control unit 30 is connected to the hall sensing assembly 20, and the control unit 30 determines whether the moving part is stuck according to the sensing signal.
Specifically, taking the example that a plurality of N magnetic poles are distributed at intervals on the detection surface of the magnetic ring 10 as an example, when the driving part drives the moving part to move, the magnetic ring 10 moves along with the driving part, the hall detection assembly 20 is fixed, the N magnetic pole and the first blank area on the detection surface of the magnetic ring 10 sequentially pass through the hall detection assembly 20, the hall detection assembly 20 outputs an induction signal, such as a high-low level pulse signal, by inducing the N magnetic pole of the magnetic ring 10, and when the driving part stops moving, the magnetic pole induced by the hall detection assembly 20 will remain unchanged, and the induction signal will remain unchanged, so that the control unit 30 determines the state of the driving part according to the induction signal, such as whether the driving part is locked, and further determines whether the moving part driven by the driving part is locked.
The case of the magnetic ring 10 having a plurality of S magnetic poles on the detection surface at intervals is similar to the case of the magnetic ring 10 having a plurality of N magnetic poles at intervals, except that the S magnetic poles and the second blank area on the detection surface of the magnetic ring 10 sequentially pass through the hall detection assembly 20, and will not be described herein again.
According to one embodiment of the invention, the driving part may comprise a driving motor, and the magnetic ring 10 is fixed on a rotating component of the driving motor. That is, when the driving motor drives the moving part to move, the magnetic ring 10 rotates with the rotating component of the driving motor.
According to an embodiment of the present invention, the driving motor may be a stepping motor, the stepping motor is controlled in an open loop, and the control unit 30 may detect whether the stepping motor is locked or not through the structure of the magnetic ring and the hall detection assembly, so as to prevent the stepping motor from being continuously in an interference state, and prevent adverse effects on the stepping motor itself and the operation of the product.
According to one embodiment of the invention, the rotating component of the drive motor may be a transmission gear or a drive shaft. That is, the magnetic ring 10 may be fixed to a driving gear or a driving shaft of a driving motor so that the magnetic ring 10 may be rotated along with the driving motor when the driving motor is rotated.
It should be noted that, when the driving motor drives the moving part, if a plurality of transmission gears are disposed between the driving motor and the moving part, the magnetic ring 10 is preferably fixed on the transmission gear near the moving part.
Specifically, as shown in fig. 2 to 5, a fixing hole 101 is formed on the magnetic ring 10, for example, a fixing hole 101 is formed in the center of the magnetic ring 10, and the magnetic ring 10 is riveted with a driving part, for example, a rotating component of a driving motor, through the fixing hole 101, so as to rotate synchronously with the driving part. That is, the magnetic ring 10 may be riveted with a transmission gear or a driving shaft of a driving motor through the fixing hole 101. Alternatively, the magnetic ring 10 may be formed directly as one piece with the transmission gear.
Also, according to an embodiment of the present invention, the hall sensing assembly 20 may be fixed to the air conditioner body. From this, the integral erection is convenient, avoids bringing the line problem of walking.
Further, according to an embodiment of the present invention, as shown in fig. 2 to 5, a plurality of N poles or S poles are arranged in an equal width manner. That is, when a plurality of N magnetic poles are distributed at intervals on the detection surface of the magnetic ring 10, the width of each N magnetic pole is the same; or when a plurality of S magnetic poles are distributed at intervals on the detection surface of the magnetic ring 10, the width of each S magnetic pole is the same.
According to a specific example of the present invention, the width of the magnetic region, i.e., the N-pole magnetic region, is not equal to the width of the first blank region, or the width of the magnetic region, i.e., the S-pole magnetic region, is not equal to the width of the second blank region. It should be noted that the widths of the magnetic region and the blank region are as narrow as possible under the premise of ensuring the magnetic field strength, for example, the widths can be 1-2mm, and the magnetic field strength is required to be determined according to the hall sensing parameters of the hall sensing assembly 20.
Specifically, the angular width of the magnetic region of the N-pole or S-pole can be obtained according to the following formula:
λ＝(π+arcsin(X/A)+arcsin(Y/A))/p，
wherein λ is the angular width of the magnetic region of the N or S magnetic pole, a is the maximum magnetic flux density of the N or S magnetic pole, X is the operating point of the hall sensing assembly 20, Y is the release point of the hall sensing assembly 20, and p is the number of the N or S magnetic poles.
Accordingly, the area angular width of the first blank area or the second blank area may be obtained according to the following formula:
θ＝2π/p–λ
wherein θ is the angular width of the first blank region or the second blank region, λ is the angular width of the magnetic region of the N magnetic pole or the S magnetic pole, and p is the number of the N magnetic pole or the S magnetic pole.
Of course, it should be understood that the width of the N pole and the width of the first blank region are not equal, nor is the width of the S pole and the width of the second blank region.
In addition, the magnetic ring 10 is formed by alternating N magnetic poles and blank regions or alternating S magnetic poles and blank regions, the number of the N magnetic poles or the S magnetic poles is related to the size of the magnetic ring 10, and the larger the size of the magnetic ring 10 is, the larger the total number of the N magnetic poles or the S magnetic poles is, and the higher the detection sensitivity is.
According to an embodiment of the present invention, the hall detection assembly 20 is a unipolar hall element, and the unipolar hall element 20 matches the magnetic properties of the magnetic poles on the magnetic ring 10, wherein when a plurality of N magnetic poles are distributed at intervals on the detection surface of the magnetic ring 10, the unipolar hall element is an N-pole hall element; when a plurality of S magnetic poles are distributed at intervals on the detection surface of the magnetic ring 10, the unipolar hall element is an S-pole hall element. That is, the model selection of the unipolar hall element is matched with the unipolar magnetic ring, if the magnetism of the detection surface of the unipolar magnetic ring is an N-pole type, the unipolar hall is also selected as an N-pole type, and if the magnetism of the detection surface of the unipolar magnetic ring is an S-pole type, the unipolar hall is also selected as an S-pole type.
According to an embodiment of the present invention, as shown in fig. 2 to 5, the detection surface of the magnetic ring 10 may be a side surface of the magnetic ring or an end surface of the magnetic ring. That is, the magnetic ring 10 has two forms of side surface magnetization and end surface magnetization, and the N magnetic pole is taken as an example, as shown in fig. 2a, fig. 2b and fig. 4, the side surface magnetization is performed, and the N magnetic pole and the first blank area can be filled in the periphery of the magnetic ring 10 at intervals, wherein, as shown in fig. 2a, the top view is shown, and as shown in fig. 2b and fig. 4, the side view is shown; as shown in fig. 3 and 5, the end face is magnetized, and the N magnetic pole and the first blank area are filled in the end face of the magnetic ring 10 at intervals. In the embodiment of the invention, the end face can be preferably magnetized, so that the magnetic ring 10 can be made thinner, the material is saved, and the cost is reduced.
According to an embodiment of the present invention, the hall sensing assembly 20, such as a hall element, may be in a package form of both a chip and a plug-in type, and the hall sensing assembly 20 is fixed on a PCB (Printed Circuit Board) Board and fixed on the air conditioner body through the PCB Board, and is located at one side of the magnetic ring 10, close to the magnetic ring but not in contact, within a magnetic field inductable range.
As shown in fig. 5, the patch type hall detection component 20 can be matched with the magnetic ring 10 with magnetized end surface; as shown in fig. 4, a hall-effect detection assembly 20 of the plug-in type can be fitted with a magnetic ring 10 that is magnetized on the side. In the embodiment of the present invention, the patch type hall sensing component 20 may be preferred, and the patch type positioning is more accurate in the manufacturing process, so that the sensing error may be reduced, and the adoption of the patch type may facilitate the automatic assembly and increase the assembly speed.
According to an embodiment of the present invention, a blank region is disposed between two adjacent N poles or S poles, and the hall sensing element 20 can generate a sensing signal according to whether the sensed N poles or S poles are sensed, that is, the hall sensing element generates an active level when facing the N poles or S poles, and generates an inactive level when facing the first blank region or the second blank region, for example, the active level can be a high level and the inactive level can be a low level, or the active level can be a low level and the inactive level can be a high level, which depends on the property of the hall sensing element 10.
Thus, when the N-pole and the first blank region alternately pass through the hall sensing assembly 20 or the S-pole and the second blank region alternately pass through the hall sensing assembly 20, the hall sensing assembly 20 outputs a stable high-low level pulse sequence, and the high-low level pulse sequence has a fixed period and a duty ratio of 50%.
Therefore, the N magnetic poles or the S magnetic poles on the magnetic ring 10 can be very dense (the width of the magnetic poles can be 1-2mm), the sensitivity is high, and the frequency of feedback pulses can be improved, so that the detection time is shortened, and the detection sensitivity is improved. And based on the Hall effect, the method is stable and reliable, has low interference, stable pulse waveform and rapid high and low level jump.
Further, according to an embodiment of the present invention, as shown in fig. 6, the control unit 30 includes: a timer 301 and a control chip 302.
The timer 301 is configured to start timing when the active level and the inactive level are switched, so as to time the duration of the active level and the duration of the inactive level; the control chip 302 is connected to the timer 301, and the control chip 302 is configured to determine that the moving component is stuck when the duration of the active level or the inactive level is greater than a preset time threshold.
Specifically, taking the N-pole as an example, the S-pole is similar to the N-pole and will not be described in detail. When the driving part drives the moving part to move, for example, the driving motor rotates, the rotating component of the driving motor drives the magnetic ring 10 to synchronously rotate, the hall detection component 20 is fixed, the N magnetic pole and the first blank area on the magnetic ring 10 alternately pass through the hall detection component 10, if the hall detection component 10 is over against the N magnetic pole of the magnetic ring 20, the hall detection component 20 outputs an effective level, and at this time, the timer 301 records the duration time of the effective level, which is recorded as T1; if the hall detection element 20 is directly facing the first blank area of the magnetic ring 10, the hall detection element 20 outputs an invalid level, and the timer 301 records the duration of the invalid level as T2. It should be understood that T1 may be made identical to T2 by appropriately setting the widths of the N-pole and the first blank region of the magnetic ring 10, for example, the magnetic region angular width of the N-pole is (pi + arcsin (X/a) + arcsin (Y/a))/p, and the region angular width of the first blank region is θ 2 pi/p- λ.
When the area directly opposite to the hall detection element 20 changes from the N pole to the first blank area, the output of the hall detection element 20 jumps from the active level to the inactive level, and the timer 301 starts counting again, i.e. the timer 301 starts recording the duration of the inactive level. Similarly, when the area opposite to the hall sensing element 20 changes from the first blank area to the N-pole, the output of the hall sensing element 20 jumps from the inactive level to the active level, and the timer 301 starts counting again, i.e. the timer 301 starts recording the duration of the active level.
By analogy, as shown in fig. 7, the hall sensing assembly 10 outputs a series of high and low level pulse trains, and the duty ratio of the pulse trains is 50%. The control chip 50 can determine whether the driving motor is locked by detecting the duration of the high level and the duration of the low level respectively, that is, whether the duration of the high level and the duration of the low level exceed a preset time threshold, and then determine whether the door panel is locked.
More specifically, assuming that r is the rotation speed of the magnetic ring 10 and p is the number of N poles or S poles of the magnetic ring 10, the duration tn of the active level or the inactive level is 1/r/p/2, i.e. tn is 1/r/p/2, in the case that no jamming occurs, wherein the rotation speed r of the magnetic ring 10 can be calculated according to the rotation speed of the driving motor and the gear transmission ratio.
Therefore, if the moving part is stuck and the transmission gear of the driving part is stuck, the region of the magnetic ring 10 opposite to the hall detection assembly 20 is not changed any more, and the output level of the hall detection assembly 20 is continuously high or continuously low.
As shown in fig. 8, the moving component is stuck at time t1 and is restored at time t2, tn is the duration of the high level or the low level when no sticking occurs, td is a preset time threshold, when the moving component is stuck, the current level state is maintained, if the duration of the current level, i.e., the timing time of the timer 301, is greater than the preset time threshold td, it is determined that the moving component is stuck, in other words, if the high level or the low level exceeds the preset time threshold td and no jump occurs, it is determined that the moving component is stuck. The preset time threshold td ═ k × tn, and the value of k may range from 1 to 4, and is preferably 1.5.
As described above, the process of detecting whether the moving part is jammed according to the embodiment of the present invention is as follows:
when the driving component drives the moving component, the control chip 302 starts a detection function, and controls the timer 301 to start timing, the control chip 302 can acquire a sensing signal output by the hall detection assembly 20, when the sensing signal jumps in high and low levels, the control chip 301 is cleared, the control chip 302 can judge whether a timing value of the timer 301 is greater than a preset time threshold td, if the timing value of the timer 301 is greater than the preset time threshold td, the driving motor is judged to be locked, and then the moving component is judged to be blocked, and the control chip 302 outputs a locked-rotor protection signal to execute a protection action of the driving motor, for example, the driving motor is controlled to stop rotating or reversely rotate; if the timing value of the timer 302 is less than or equal to the preset time threshold td, it is determined that the driving motor is not locked, and further it is determined that the moving component is not stuck, and the control chip 302 can control the driving motor to continue to rotate forward.
In addition, according to an embodiment of the present invention, as shown in fig. 9, a power supply terminal of the hall sensing element 20 is connected to a predetermined power VCC, for example, +5V, through a first resistor R1, a ground terminal of the hall sensing element 20 is grounded, and a first capacitor C1 is connected in parallel between the power supply terminal and the ground terminal of the hall sensing element 20, wherein the sensing terminal of the hall sensing element 20 senses a magnetic pole of the magnetic ring 10, and an output terminal of the hall sensing element 20 outputs a sensing signal.
Further, as shown in fig. 9, the motor stalling detection device of the air conditioner further includes an output circuit 40, the output circuit 40 is connected to the output end of the hall detection assembly 20, and the output circuit 40 includes: the second resistor R2 and the third resistor R3, the second resistor R2 and the third resistor R3 are connected in series, one end of the second resistor R2 and one end of the third resistor R3 which are connected in series are connected with a preset power VCC, the other end of the second resistor R2 and the other end of the third resistor R3 which are connected in series are connected with the control unit 30, namely the control chip 302, a node is arranged between the second resistor R2 and the third resistor R3 which are connected in series, and the node is connected with the output end of the Hall detection component 20.
The second resistor R2 is a pull-up resistor, and the third resistor R3 is a current-limiting resistor.
That is to say, the hall detection element 20 can supply 5V power, so that the hall detection element 20 can output a high-low level pulse sequence with an amplitude of 5V, the high-low level pulse sequence is provided to the control unit 30 through a corresponding output circuit, the control unit 30 can time the duration of the high-low level pulse sequence, and judge whether the driving motor stalls or not through the comparison of the time and the preset time threshold, and further judge whether the moving part is jammed or not.
Further, according to an embodiment of the present invention, as shown in fig. 10 and 11, the moving part may be a door panel 300 of an air conditioner; the driving part 100, for example, a driving motor, may drive the door panel 300. Specifically, the cabinet of the air conditioner is provided with a slidable door panel 300, when the air conditioner is started, the control device of the air conditioner can drive the door panel 300 to be opened through the driving part 100, and when the air conditioner is closed, the control device of the air conditioner can drive the door panel 300 to be closed through the driving part 100, so that the attractiveness of the product is improved. When the number of the door panel 300 is one, the door panel 300 can be opened to one side; when the door panel 300 is two, the door panel 300 can be opened to both sides.
The detection control device for the moving part according to the embodiment of the present invention may detect whether the driving part 100 is locked, so as to determine whether the door panel 300 meets an obstacle. Specifically, when the door panel 300 moves in the door opening direction or the door closing direction, the driving component 100, such as a driving motor, drives the magnetic ring 10 to rotate synchronously, the N magnetic pole and the blank area on the magnetic ring 10 alternately pass through the hall detection component 20, and the hall detection component 20 outputs a stable high-low level pulse sequence with a duty ratio of 50%.
When the door panel 300 is blocked, for example, a foreign object blocks the door panel 300 or a finger accidentally extends into the door panel, the driving component 100 stops rotating, the area corresponding to the hall detection assembly 20 does not change any more, the output level of the hall detection assembly 20 continues to be a high level or a low level, the control unit 30 detects whether the duration time of the high level and the low level exceeds the preset time threshold td, and then determines whether the door panel 300 blocks the rotation, and further determines whether the door panel 300 meets an obstacle.
From this, can effectively detect whether the door plant takes place the jamming, shorten check-out time, obtain the jamming information of door plant fast, do slight touching can detect the effect of jamming to in time take corresponding tactics to adjust the motion of door plant, avoid causing the damage to the mechanism, prevent to cause the injury for example to clip the finger to the user, improved user simultaneously and used and experienced the satisfaction.
In summary, according to the detection control device for the moving part in the air conditioner provided by the embodiment of the invention, the hall detection assembly fixedly arranged near the magnetic ring can be used for sensing the magnetic pole of the magnetic ring moving synchronously with the driving part to generate the sensing signal, and then the control unit can judge whether the moving part is stuck according to the received sensing signal, so that the state of the moving part such as a door panel and the like can be detected in real time, whether the moving part is stuck can be quickly judged, so that corresponding measures can be taken in time to adjust the driving action of the driving part, the damage to the driving part is avoided, and the user experience is improved. In addition, the device has the advantages of high detection sensitivity, small occupied space, low cost, convenience in installation, long service life, stability and reliability.
In another aspect, the present invention provides an air conditioner, which includes the detection control device for the moving parts in the air conditioner.
According to the air conditioner provided by the invention, the state of the moving part such as the door plate and the like can be detected in real time through the detection control device of the moving part, and whether the moving part is blocked or not can be quickly judged, so that corresponding measures can be taken to adjust the driving action of the driving part in time, the driving part is prevented from being damaged, and the user experience is improved. And the detection sensitivity is high, the occupied space is small, the cost is low, the installation is convenient, the service life is long, and the method is stable and reliable.
The embodiment of the invention also provides a detection control method of the moving part in the air conditioner.
Fig. 12 is a flowchart of a detection control method of a moving part in an air conditioner according to an embodiment of the present invention. The air conditioner comprises a magnetic ring and a Hall detection assembly, wherein the magnetic ring is fixed on a driving part of a driving moving part, a plurality of N magnetic poles or S magnetic poles are distributed on a detection surface of the magnetic ring at intervals, and the Hall detection assembly is fixedly arranged close to the detection surface of the magnetic ring. As shown in fig. 12, the method for controlling detection of moving parts in an air conditioner includes the steps of:
s1: when the driving part drives the moving part to move, the Hall detection assembly induces the N magnetic pole or the S magnetic pole of the magnetic ring to generate an induction signal;
s2: and judging whether the moving part is blocked or not according to the induction signal.
According to an embodiment of the present invention, a first blank area is respectively disposed between two adjacent N magnetic poles or a second blank area is disposed between two adjacent S magnetic poles, the hall sensing assembly generates an active level when facing the N magnetic poles or the S magnetic poles, and generates an inactive level when facing the first blank area or the second blank area, and determining whether the moving part is stuck according to the sensing signal includes: starting timing when the active level and the inactive level are switched so as to time the duration of the active level and the duration of the inactive level; and when the duration of the active level or the inactive level is greater than a preset time threshold, judging that the moving part is blocked.
According to the detection control method for the moving part in the air conditioner, provided by the embodiment of the invention, the magnetic pole of the magnetic ring which moves synchronously with the driving part can be induced by the Hall detection assembly fixedly arranged close to the magnetic ring to generate the induction signal, and then whether the moving part is blocked or not is judged according to the received induction signal, so that the state of the moving part such as a door plate and the like can be detected in real time, whether the moving part is blocked or not is quickly judged, so that the driving action of the driving part can be adjusted by taking corresponding measures in time, the driving part is prevented from being damaged, and the user experience is improved. In addition, the method has the advantages of high detection sensitivity, small occupied space, low cost, convenience in installation, long service life, stability and reliability.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (8)
1. A detection control apparatus for a moving part in an air conditioner, comprising:
the magnetic ring is fixed on a driving part for driving the moving part, and a plurality of N magnetic poles or S magnetic poles are distributed on the detection surface of the magnetic ring at intervals;
the Hall detection assembly is fixedly arranged close to the detection surface of the magnetic ring, and induces the N magnetic pole or the S magnetic pole of the magnetic ring to generate an induction signal when the driving part drives the moving part to move;
the control unit is connected with the Hall detection assembly and judges whether the moving part is clamped or not according to the induction signal;
when a plurality of N magnetic poles are distributed on the detection surface of the magnetic ring at intervals, a first blank area is distributed between every two adjacent N magnetic poles;
when a plurality of S magnetic poles are distributed on the detection surface of the magnetic ring at intervals, a second blank area is distributed between every two adjacent S magnetic poles;
obtaining the angular width of the magnetic region of the N-pole or the S-pole according to the following formula:
λ＝(π+arcsin(X/A)+arcsin(Y/A))/p，
wherein λ is the angular width of the magnetic region of the N magnetic pole or the S magnetic pole, a is the maximum magnetic flux density of the N magnetic pole or the S magnetic pole, X is the operating point of the hall detection assembly, Y is the release point of the hall detection assembly, and p is the number of the N magnetic pole or the S magnetic pole;
obtaining the area angular width of the first blank area or the second blank area according to the following formula:
θ＝2π/p–λ
wherein θ is the angular width of the first blank region or the second blank region, λ is the angular width of the magnetic region of the N magnetic pole or the S magnetic pole, and p is the number of the N magnetic pole or the S magnetic pole;
the width of the N magnetic pole or the S magnetic pole on the magnetic ring is 1-2 mm.
2. The apparatus for controlling detection of a moving part in an air conditioner according to claim 1,
when a plurality of N magnetic poles are distributed on the detection surface of the magnetic ring at intervals, a first blank area is distributed between every two adjacent N magnetic poles;
when a plurality of S magnetic poles are distributed on the detection surface of the magnetic ring at intervals, a second blank area is distributed between every two adjacent S magnetic poles.
3. The apparatus for controlling detection of a moving part in an air conditioner according to claim 2,
when a plurality of N magnetic poles are distributed on the detection surface of the magnetic ring at intervals, the width of each N magnetic pole is the same; or
When a plurality of S magnetic poles are distributed on the detection surface of the magnetic ring at intervals, the width of each S magnetic pole is the same.
4. The detecting and controlling device for the moving parts of the air conditioner as claimed in claim 1, wherein said Hall detecting assembly is a unipolar Hall element which matches the magnetism of the magnetic poles between said magnetic rings, wherein,
when a plurality of N magnetic poles are distributed on the detection surface of the magnetic ring at intervals, the unipolar Hall element is an N-pole Hall element;
when a plurality of S magnetic poles are distributed on the detection surface of the magnetic ring at intervals, the unipolar Hall element is an S-pole Hall element.
5. The apparatus of claim 1, wherein said hall sensing element generates an active level when facing said N pole or said S pole and generates an inactive level when facing said first empty area or said second empty area, said control unit comprising:
a timer for starting timing when the active level and the inactive level are switched to time a duration of the active level and a duration of the inactive level;
and the control chip is connected with the timer and used for judging that the moving part is blocked when the duration of the effective level or the ineffective level is greater than a preset time threshold.
6. An air conditioner characterized by comprising the detection control device of a moving part in an air conditioner according to any one of claims 1 to 5.
7. A detection control method for a moving part in an air conditioner is characterized in that the air conditioner comprises a magnetic ring and a Hall detection assembly, the magnetic ring is fixed on a driving part for driving the moving part, a plurality of N magnetic poles or S magnetic poles are distributed on a detection surface of the magnetic ring at intervals, the Hall detection assembly is fixedly arranged close to the detection surface of the magnetic ring, and the method comprises the following steps:
when the driving part drives the moving part to move, the Hall detection assembly induces the N magnetic pole or the S magnetic pole of the magnetic ring to generate an induction signal;
judging whether the moving part is clamped or not according to the induction signal;
when a plurality of N magnetic poles are distributed on the detection surface of the magnetic ring at intervals, a first blank area is distributed between every two adjacent N magnetic poles;
when a plurality of S magnetic poles are distributed on the detection surface of the magnetic ring at intervals, a second blank area is distributed between every two adjacent S magnetic poles;
obtaining the angular width of the magnetic region of the N-pole or the S-pole according to the following formula:
λ＝(π+arcsin(X/A)+arcsin(Y/A))/p，
wherein λ is the angular width of the magnetic region of the N magnetic pole or the S magnetic pole, a is the maximum magnetic flux density of the N magnetic pole or the S magnetic pole, X is the operating point of the hall detection assembly, Y is the release point of the hall detection assembly, and p is the number of the N magnetic pole or the S magnetic pole;
obtaining the area angular width of the first blank area or the second blank area according to the following formula:
θ＝2π/p–λ
wherein θ is the angular width of the first blank region or the second blank region, λ is the angular width of the magnetic region of the N magnetic pole or the S magnetic pole, and p is the number of the N magnetic pole or the S magnetic pole;
the width of the N magnetic pole or the S magnetic pole on the magnetic ring is 1-2 mm.
8. The method as claimed in claim 7, wherein a first blank area is disposed between two adjacent N poles or a second blank area is disposed between two adjacent S poles, the hall sensing assembly generates an active level when facing the N poles or the S poles and generates an inactive level when facing the first blank area or the second blank area, and the determining whether the moving part is stuck according to the sensing signal includes:
starting timing when the active level and the inactive level are switched to time the duration of the active level and the duration of the inactive level;
and when the duration of the effective level or the ineffective level is greater than a preset time threshold, judging that the moving part is blocked.
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| CN201710401694.3A CN107328016B (en) | 2017-05-31 | 2017-05-31 | Air conditioner and detection control device and method for moving part in air conditioner |
| PCT/CN2017/118012 WO2018126909A1 (en) | 2017-01-05 | 2017-12-22 | Air conditioner and detection control device and method for moving parts in air conditioner |
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| CN201710401694.3A CN107328016B (en) | 2017-05-31 | 2017-05-31 | Air conditioner and detection control device and method for moving part in air conditioner |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11801105B2 (en) | 2017-12-06 | 2023-10-31 | Auris Health, Inc. | Systems and methods to correct for uncommanded instrument roll |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108266853A (en) * | 2017-12-28 | 2018-07-10 | 珠海格力电器股份有限公司 | A kind of control method of wind deflector, device and air-conditioning |
| CN111897017A (en) * | 2020-08-24 | 2020-11-06 | 国网山东省电力公司滨州市沾化区供电公司 | Buried cable path detection device |
| CN113155158A (en) * | 2021-05-13 | 2021-07-23 | 深圳市瑞达美磁业有限公司 | Magnetic drum and magnetic encoder with same |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100796565B1 (en) * | 2006-11-02 | 2008-01-21 | 주식회사 대우일렉트로닉스 | Apparatus and method for controlling rise and fall of exhaust port for air-conditioner |
| CN102221322A (en) * | 2010-04-12 | 2011-10-19 | 村田机械株式会社 | Magnetic pole detection system and magnetic pole detection method |
| JP2012241350A (en) * | 2011-05-17 | 2012-12-10 | Toyota Home Kk | Building |
| CN103196470A (en) * | 2013-04-15 | 2013-07-10 | 山东联友通信科技发展有限公司 | Locating method and locating system based on one-dimensional magnetic coding |
| CN103234564A (en) * | 2013-04-15 | 2013-08-07 | 山东联友通信科技发展有限公司 | Positioning method and positioning system based on two-dimensional magnetic codes |
| CN105143831A (en) * | 2013-04-23 | 2015-12-09 | 三菱电机株式会社 | Magnetic position-detection device and magnetic position-detection method |
| CN105492872A (en) * | 2013-07-23 | 2016-04-13 | 巴鲁夫公司 | Method for dynamic linearisation of sensor signals from a magnetic strip length measuring system |
| CN106104211A (en) * | 2014-03-14 | 2016-11-09 | 三菱电机株式会社 | Magnetic-type position detecting device, magnetic-type method for detecting position |
| CN106679100A (en) * | 2017-01-05 | 2017-05-17 | 广东美的制冷设备有限公司 | Air conditioner and door sheet detecting device of air conditioner |
| CN106705392A (en) * | 2017-01-05 | 2017-05-24 | 广东美的制冷设备有限公司 | Air conditioner and motor stalling detection device and door panel control system thereof |
| WO2018126910A1 (en) * | 2017-01-05 | 2018-07-12 | 广东美的制冷设备有限公司 | Air conditioner, detection and control device for use with moving member in air conditioner and method |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7123139B2 (en) * | 2004-05-25 | 2006-10-17 | Tac Ab | Wireless integrated occupancy sensor |
| CN100434923C (en) * | 2006-03-20 | 2008-11-19 | 钟奋强 | Method for detecting paper shredder blocking and rotation and paper shredder having blocking and rotation detector |
| CN202033477U (en) * | 2011-03-23 | 2011-11-09 | 中国电子科技集团公司第二十一研究所 | Device for detecting paper jam of clothing CAD plotter |
| CN202126441U (en) * | 2011-05-31 | 2012-01-25 | 上海音达科技集团有限公司北京分公司 | Inspection device of wind speed |
| CN103166181A (en) * | 2011-12-16 | 2013-06-19 | 深圳市堃琦鑫华科技有限公司 | Control method of protecting blender motor |
| CN104110771B (en) * | 2013-07-01 | 2017-02-08 | 广东美的制冷设备有限公司 | Wide-angle air conditioner and method and system for calibrating rotating angle of air outlet thereof |
| CN103711402B (en) * | 2013-12-06 | 2016-01-20 | 广西科技大学 | The anti-clip control method of automobile electric car-window and system |
| CN103711401B (en) * | 2013-12-06 | 2016-04-13 | 广西科技大学 | The anti-clip control method of automobile electric car-window and system |
| CN104618636A (en) * | 2015-02-27 | 2015-05-13 | 广东欧珀移动通信有限公司 | Camera locked-rotation prevention method and device |
-
2017
- 2017-05-31 CN CN201710401694.3A patent/CN107328016B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100796565B1 (en) * | 2006-11-02 | 2008-01-21 | 주식회사 대우일렉트로닉스 | Apparatus and method for controlling rise and fall of exhaust port for air-conditioner |
| CN102221322A (en) * | 2010-04-12 | 2011-10-19 | 村田机械株式会社 | Magnetic pole detection system and magnetic pole detection method |
| JP2012241350A (en) * | 2011-05-17 | 2012-12-10 | Toyota Home Kk | Building |
| CN103196470A (en) * | 2013-04-15 | 2013-07-10 | 山东联友通信科技发展有限公司 | Locating method and locating system based on one-dimensional magnetic coding |
| CN103234564A (en) * | 2013-04-15 | 2013-08-07 | 山东联友通信科技发展有限公司 | Positioning method and positioning system based on two-dimensional magnetic codes |
| CN105143831A (en) * | 2013-04-23 | 2015-12-09 | 三菱电机株式会社 | Magnetic position-detection device and magnetic position-detection method |
| CN105492872A (en) * | 2013-07-23 | 2016-04-13 | 巴鲁夫公司 | Method for dynamic linearisation of sensor signals from a magnetic strip length measuring system |
| CN106104211A (en) * | 2014-03-14 | 2016-11-09 | 三菱电机株式会社 | Magnetic-type position detecting device, magnetic-type method for detecting position |
| CN106104211B (en) * | 2014-03-14 | 2018-11-13 | 三菱电机株式会社 | Magnetic-type position detecting device, magnetic-type method for detecting position |
| CN106679100A (en) * | 2017-01-05 | 2017-05-17 | 广东美的制冷设备有限公司 | Air conditioner and door sheet detecting device of air conditioner |
| CN106705392A (en) * | 2017-01-05 | 2017-05-24 | 广东美的制冷设备有限公司 | Air conditioner and motor stalling detection device and door panel control system thereof |
| WO2018126910A1 (en) * | 2017-01-05 | 2018-07-12 | 广东美的制冷设备有限公司 | Air conditioner, detection and control device for use with moving member in air conditioner and method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11801105B2 (en) | 2017-12-06 | 2023-10-31 | Auris Health, Inc. | Systems and methods to correct for uncommanded instrument roll |
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| Publication number | Publication date |
|---|---|
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