CN102866722A - Device and method for controlling output of load - Google Patents
Device and method for controlling output of load Download PDFInfo
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- CN102866722A CN102866722A CN2011101946290A CN201110194629A CN102866722A CN 102866722 A CN102866722 A CN 102866722A CN 2011101946290 A CN2011101946290 A CN 2011101946290A CN 201110194629 A CN201110194629 A CN 201110194629A CN 102866722 A CN102866722 A CN 102866722A
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Abstract
The invention discloses a device and a method for controlling output of a load. The device comprises a conduction angle change circuit, a current scanner and a digital signal processing unit, wherein the digital signal processing unit comprises a preset load type acquisition module and a continuous template matching processing module; and the continuous template matching processing module is used for executing continuous template matching processing when an acquired preset load type is a non-linear adjustable load and comprises a conduction angle range determining sub-module for determining a conduction angle range, a local mode acquisition sub-module for responsively changing a conduction angle in the conduction angle range to acquire a local mode, a matching sub-module for matching the local mode with a local mode in a current mode template and an updating sub-module for updating a load control parameter according to the matching result. According to the technical scheme provided by the invention, the load can be monitored and controlled on line without interfering normal use of a user, and error operation caused by replacement of the load or load characteristic change and the like is effectively avoided.
Description
Technical field
The present invention relates to a kind of apparatus and method of the output for control load.Particularly, the present invention relates to the apparatus and method of a kind of output for the control electric device (such as the luminous intensity of light-emitting device, the speed of fan, heating or the refrigeration intensity of air conditioner).
Background technology
Dimmer circuit is controlled the output light intensity of light-emitting device usually by the conduction angle that optionally changes the input ac voltage that is applied to light-emitting device.Usually, the part of the positive period by chopping or block the input ac voltage that is applied to light-emitting device off and negative cycle changes the conduction angle of voltage.Depend on the scope that conduction angle is chopped off or blocked, the light modulation amount of realization is variable.
Dimmer circuit generally is designed to linear work, so it is easilier worked with traditional light-emitting device (such as being in nature linear incandescent lamp and low-voltage halogen lamp) interfaces and with this light-emitting device.
Yet, because existing dimmer circuit has relatively poor compatibility for non-linear light-emitting device (such as compact fluorescent lamp (CFL), fluorescent tube and light emitting diode (LED)) usually, therefore be easy to occur variety of issue, such as shortening and failure light emission in flicker, serviceable life.In addition, for so that existing light adjusting circuit is suitably compatible with non-linear tunable radiation emitting device, need to make amendment to existing dimmer circuit, but the modification of the non-linear light-emitting device of a type or brand not necessarily is applicable to the non-linear light-emitting device of another type or brand.
In addition, along with the fast development in the market of energy saving luminous device (being generally in nature nonlinear), commercially do not expect to occur about the compatible relatively poor problem of existing light modulator and this light-emitting device.For example, among PCT patent application PCT/CN2010/080529 that submit to, that be entitled as " DEVICE AND METHOD FOR CONTROLLABLY DIMMING THE OUTPUT OF A LOAD " a kind of dimmer arrangement and method that can alleviate above problem disclosed Dec 30 in 2010, these apparatus and method can be when initial installation load, automatically detect the type of load, thereby use suitable light-modulating mode.
Yet the characteristic of non-linear light-emitting device can be subject to the impact of external environment condition, such as voltage and temperature since current run time with the difference of the load characteristic in initial identification period, this can cause having the faulty operation of the light modulator of automatic load recognition function.In addition, if the user has changed the load with different qualities, for example be replaced by CFL from incandescent lamp, be replaced by non-adjustable CFL from adjustable CFL, this operation that equally also can lead to errors.
Summary of the invention
Provided hereinafter about brief overview of the present invention, in order to basic comprehension about some aspect of the present invention is provided.But, should be appreciated that this general introduction is not about exhaustive general introduction of the present invention.It is not that intention is used for determining key part of the present invention or pith, neither be intended to limit scope of the present invention.Its purpose only is that the form of simplifying provides about some concept of the present invention, with this as the in greater detail preorder that provides after a while.
In view of said circumstances, therefore the purpose of this invention is to provide a kind of apparatus and method that can overcome or alleviate the output that is used for control load of the problems referred to above, it can be in the situation that do not have influence on the ability that the user provides Real-Time Monitoring, identification and control load, thereby improved the intelligent of product.
To achieve these goals, according to a first aspect of the invention, provide a kind of device of the output for control load, this device comprises: conduction angle changes circuit, is used for changing the conduction angle of the input ac voltage that is applied to load; The current scanning device, for the conduction angle that is applied to the input ac voltage of load in response to change, at least a current forms of load is flow through in scanning; And digital signal processing unit, being connected circuit with the current scanning device with conduction angle is connected, current mode for the relation between the variation conduction angle of at least a current forms that scans by referential expression current scanning device and input ac voltage, output to load is controlled, wherein, digital signal processing unit comprises: default load type acquisition module is used for obtaining the default loadtype of load; And sequential templet matching treatment module, the default loadtype that is used for obtaining in default load type acquisition module is in the situation of non-linear tunable load, carry out the sequential templet matching treatment on predetermined opportunity, wherein, sequential templet matching treatment module comprises: the conduction angle scope is determined submodule, and the minimum conduction angle that is used for being associated according to current conduction angle with load is determined the conduction angle scope; Local current mode is obtained submodule, be used for changing conduction angle in response to determining in the conduction angle scope in the conduction angle scope that submodule is determined, obtain local mode in the conduction angle scope according at least a current forms that is scanned by the current scanning device, flow through load; Matched sub-block is used for the local mode that local mode obtains in local mode that submodule obtains and the pre-stored current mode template conduction angle scope is mated; And updating submodule, for the control parameter of upgrading load according to the matching result of matched sub-block.
According to a second aspect of the invention, also provide a kind of method of the output for control load, may further comprise the steps: default loadtype obtaining step is used for obtaining the default loadtype of load; And sequential templet matching treatment step, the default loadtype that is used for obtaining at default loadtype obtaining step is in the situation of non-linear tunable load, carry out the sequential templet matching treatment, wherein said sequential templet matching treatment comprises: conduction angle scope determining step, and the minimum conduction angle that is used for being associated according to current conduction angle with load is determined the conduction angle scope; Local mode's obtaining step, be used in response to the conduction angle that changes input ac voltage in the conduction angle scope of determining in conduction angle scope determining step, at least a current forms of load is flow through in scanning, thereby obtain the local mode in the conduction angle scope, this local mode represents the relation between the variation conduction angle of at least a current forms that scans and input ac voltage; The coupling step is used for and will the local mode in the conduction angle scope mates in local mode that local mode's obtaining step obtains and pre-stored current mode template; And step of updating, for the control parameter of upgrading load according to the matching result that mates step.
Since the present invention can in the situation that not interference user load is carried out at line sweep, thereby effectively avoided owing to changing load or load characteristic because aging or external action and variation etc. are former thereby the faulty operation that causes, therefore can apply optimal control to load, thereby obtain better performance.
Description of drawings
The present invention can by with reference to hereinafter by reference to the accompanying drawings given detailed description be better understood, wherein in institute's drawings attached, used same or analogous Reference numeral to represent identical or similar parts.Described accompanying drawing comprises in this manual and forms the part of instructions together with following detailed description, be used for further illustrating the preferred embodiments of the present invention and explain principle and advantage of the present invention.In the accompanying drawings:
Fig. 1 shows the according to an embodiment of the invention block diagram of light modulating device;
Fig. 2 A shows according to an embodiment of the invention, is connected to exemplary two line arranged in series the schematic diagram of the light modulating device of light-emitting device and AC power;
Fig. 2 B shows according to an embodiment of the invention, is connected to exemplary three lines configuration the schematic diagram of the light modulating device of light-emitting device and AC power;
Fig. 3 shows according to an embodiment of the invention, the block diagram of the functional configuration of digital signal processing unit shown in Figure 1;
Fig. 4 shows the schematic diagram of the establishment of the local mode in the current mode template;
Fig. 5 shows according to an embodiment of the invention, the block diagram of the functional configuration of matched sub-block shown in Figure 3;
Fig. 6 shows according to an embodiment of the invention, the block diagram of the functional configuration of updating submodule shown in Figure 3;
Fig. 7 shows according to an embodiment of the invention, be used for the process flow diagram of method of the output of control load;
Fig. 8 shows according to an embodiment of the invention, the process flow diagram of sequential templet matching treatment step shown in Figure 7;
Fig. 9 shows according to an embodiment of the invention, the process flow diagram of the concrete processing of coupling step shown in Figure 8;
Figure 10 shows according to an embodiment of the invention, the process flow diagram of the concrete processing of step of updating shown in Figure 8; And
Figure 11 shows according to an embodiment of the invention, the process flow diagram of discrete template matching treatment step shown in Figure 7.
Embodiment
In connection with accompanying drawing example embodiment of the present invention is described hereinafter.For clarity and conciseness, all features of actual embodiment are not described in instructions.Yet, should understand, in the process of any this practical embodiments of exploitation, must make a lot of decisions specific to embodiment, in order to realize developer's objectives, for example, meet those restrictive conditions with system and traffic aided, and these restrictive conditions may change to some extent along with the difference of embodiment.In addition, might be very complicated and time-consuming although will also be appreciated that development, concerning the those skilled in the art that have benefited from present disclosure, this development only is routine task.
At this, what also need to illustrate a bit is, for fear of having blured the present invention because of unnecessary details, only show in the accompanying drawings with according to the closely-related apparatus structure of the solution of the present invention and/or treatment step, and omitted other details little with relation of the present invention.
Now with reference to Fig. 1 to 10 the preferred embodiments of the present invention are described.The property purpose is only described embodiments of the invention about the controllable dimming of light-emitting device 6 herein presented for purpose of illustration.Then, one skilled in the art will understand that herein the output (such as the heating of the speed of fan, air conditioner or refrigeration output etc.) that the alternative embodiment that does not clearly describe goes for other types of devices carries out controllable adjustment.
According to an embodiment of the invention light modulating device 1 has been shown among Fig. 1,2A and the 2B, and it can be configured to the electrical connection of two lines or three lines.In Fig. 2 A, the conducting end 4 of light modulating device 1 is connected to AC power 5 and linear or the non-linear light-emitting device 6 of 50/60Hz with two line arranged in series.As an alternative, Fig. 2 B shows light modulating device 1, AC power 5 and light-emitting device 6 and links together with three lines configurations.In three lines configurations, light modulating device 1 comprises for being connected the additional conductive end 4 ' that is connected with light-emitting device with AC power 5.
As shown in Figure 1, light modulating device 1 also comprises for change and is applied to circuit (not shown), the current scanning device 3 of conduction angle of input ac voltage of light-emitting device 6 and the digital signal processing unit 2 that is coupled to current scanning device 3 and this circuit.Digital signal processing unit 2 for example can be microcomputer, it can carry out one or more function as described herein by computer program, perhaps for example can be the dedicated hardware device that comprises one or more hardware modules, wherein these hardware modules be used for realizing one or more functional module as described herein.
Digital signal processing unit 2 and current scanning device 3 can be applied in response to change the conduction angle of the voltage of light-emitting device 6, and autoscan flows through at least a current forms of light-emitting device 6.The digital signal processing unit 2 that is combined with suitable on-off circuit can change the conduction angle of input ac voltage automatically during the sweep current form.Sort circuit is known to intelligible to those skilled in the art, no longer is described in greater detail at this.
Current forms in response to the conduction angle that changes voltage by digital signal processing unit 2 and 3 scannings of current scanning device can include but not limited to: absolute current mean value, semiperiod current average, rms current value and/or current integration.
The current mode of the relation between at least a current forms that digital signal processing unit 2 can scan by referential expression current scanning device 3 and the variation conduction angle of input ac voltage is controlled the luminous output of light-emitting device 6.
As understood by those skilled in the art, the conduction angle of voltage refer to the work period (for example, 360 ° sinusoidal voltage) be used for the part to light-emitting device 6 power supplies in, and minimum conduction angle refers to the conduction angle when making light-emitting device 6 be operated in the brightness minimum state.In this embodiment, owing to only considering the work period half at dimming period, therefore for half work period, relatively minimum conduction angle is 0 °, and maximum conduction angle is 180 ° relatively.In alternative embodiment, the scope of the conduction angle of scanning can change as required.As example, in the present embodiment, for positive half period, minimum conduction angle can be more than or equal to 0 °, and maximum conduction angle can be less than or equal to 180 °.For negative half-cycle, minimum conduction angle can be more than or equal to 180 °, and maximum conduction angle can be less than or equal to 360 °.
Next, with reference to Fig. 3 describe in detail according to an embodiment of the invention, the functional configuration of digital signal processing unit 2 shown in Figure 1.
As shown in Figure 3, digital signal processing unit 2 can comprise one or more in default load type acquisition module 21, sequential templet matching treatment module 22 and the discrete template matching treatment module 23.
Default load type acquisition module 21 can be configured to obtain the default loadtype of light-emitting device 6.Should preset loadtype for example can be when initial installation load or replacing load, automatically detect loadtype by utilizing such as disclosed method in aforementioned PCT patent application PCT/CN2010/080529, perhaps preset by the manual input load type of user.
At first, the functional configuration of sequential templet matching treatment module 22 will be described in detail.
The default loadtype that sequential templet matching treatment module 22 can be obtained in default load type acquisition module 21 is in the situation of non-linear tunable load, carry out the sequential templet matching treatment on predetermined opportunity (such as when turn-offing light-emitting device 6 or light-emitting device 6 carried out light modulation), thereby whether type or the characteristic of identification light-emitting device 6 variation has occured, and can not affect user's normal use.
Particularly, as shown in Figure 3, sequential templet matching treatment module 22 can comprise: the conduction angle scope determines that submodule 221, local mode obtain submodule 222, filter make an uproar submodule 223, matched sub-block 224 and updating submodule 225.
Below will describe the functional configuration of above each submodule in detail.
The conduction angle scope determines that submodule 221 can be configured to determine the range of adjustment of conduction angle according to the conduction angle of light-emitting device 6 works at present and the minimum conduction angle that is associated with light-emitting device 6.
Local mode obtains submodule 222 and can be configured in response to the conduction angle of determining to change in the conduction angle scope that submodule 221 is determined input ac voltage in the conduction angle scope, according at least a current forms that flows through light-emitting device 6 of current scanning device 3 scanning (for example, average load current), obtain the conduction angle of expression variation in determined conduction angle scope and the local mode of the relation between the average load current value.In addition, according to determined conduction angle scope, can obtain from pre-stored current mode template the local mode in the determined conduction angle scope, to be used for matching treatment subsequently, for example Fig. 4 schematically shows the constructive process of local mode of the current mode template of non-linear tunable load.
The filter submodule 223 of making an uproar can be configured to noise in the local mode of the light-emitting device 6 that filtering obtains, thereby smoothly falls relatively large waveform distortion, to be used for processing subsequently.It is pointed out that it is optional filtering the submodule 223 of making an uproar.
Matched sub-block 224 can be configured to that local mode is obtained in local mode that submodule 222 obtains and the pre-stored current mode template local mode in the determined conduction angle scope and mate.
Updating submodule 227 can be configured to the result according to the coupling of matched sub-block 224 execution, upgrade the control parameter of the luminous output of control light-emitting device 6, start conduction angle and/or minimum conduction angle when being used for making light-emitting device 6 be operated in the brightness minimum state such as the minimum of the suitable startup illumination that be used for to realize light-emitting device 6, thereby realize the control to the luminous output of light-emitting device 6.
According to a specific embodiment of the present invention, as shown in Figure 5, matched sub-block 224 may further include the first normalization section 2241, the first matching part 2242, the second normalization section 2243 and the second matching part 2244.
Particularly, the first normalization section 2241 can be configured to the first ratio the local mode that is obtained be carried out normalization, and this first ratio for example is the ratio between the starting point of the local mode in the current mode template of the starting point of the local mode that obtains and pre-stored linear load.
The first matching part 2242 can be configured to and will be mated by the local mode in the determined conduction angle scope in the current mode template of the local mode after 2241 normalization of the first normalization section and pre-stored linear load.
The second normalization section 2243 can be configured to the second ratio the local mode that is obtained be carried out normalization, and this second ratio for example is the ratio between the starting point of the local mode in the current mode template of the starting point of the local mode that obtains and pre-stored non-linear tunable load.
The second matching part 2244 can be configured to and will be mated by the local mode in the determined conduction angle scope in the current mode template of the local mode after 2243 normalization of the second normalization section and pre-stored non-linear tunable load.
In this case, the matching result that updating submodule 225 can be configured in the first matching part 2242 and the second matching part 2244 all represents to mate in the unsuccessful situation, upgrades the control parameter of the luminous output that is used for control light-emitting device 6.
In addition, according to a specific embodiment of the present invention, as shown in Figure 6, updating submodule 225 may further include control parameter identification part 2251 and control parameter renewal section 2252.Particularly, control parameter identification part 2251 can be configured to by with reference to the control parameter of obtaining feature that local mode that submodule 222 obtains extracts from local mode and identify the luminous output of control light-emitting device 6.Control parameter renewal section 2252 can be configured to control the control parameter that the control parameter that identifies parameter identification part 2251 is upgraded light-emitting device 6.
Preferably, the feature of local mode comprises with lower at least one: the flex point of local mode, minimum and maximum slope, monotone decreasing characteristic and the characteristic that increases progressively, local trough and local crest.
Preferably, the control parameter comprises with lower at least one: the minimum that is used for realizing the suitable startup illumination of light-emitting device 6 starts conduction angle; And the minimum conduction angle when being used for making light-emitting device 6 be operated in the brightness minimum state.As example, in this embodiment, minimum start conduction angle can be provided so that when starting, to be not less than the positive half period of voltage and negative half-cycle each 20% be applied to load, and minimum conduction angle can be set to be not less than the positive half period of voltage and negative half-cycle each 20%.
Next, the functional configuration of discrete template matching treatment module 23 will be described in detail.
Discrete template matching treatment module 23 can be configured to automatically perform discrete template matching treatment when light-emitting device 6 normal operation, thereby whether the characteristic of identification light-emitting device 6 changes (gone out such as transferring, flicker, adjustability change), and can not affect user's normal use.Particularly, as shown in Figure 3, discrete template processing module 23 can comprise that transferring goes out judges that submodule 231, flicker judge that submodule 232 and adjustability judge one or more in the submodule 233.
Below will describe the functional configuration of each submodule of discrete template matching treatment module 23 in detail.
Particularly, accent goes out and judges that the default loadtype that submodule 231 can be configured to obtain in default load type acquisition module 21 is in the situation of non-linear tunable load, the current value that scans at current conduction angle according to current scanning device 3, flow through light-emitting device 6 (for example, the average load current value) and the current value at the minimum conduction angle place in the current mode template of pre-stored non-linear tunable load, judge whether light-emitting device 6 situation of going out occurred being transferred.Particularly, if the little difference of the current value at the minimum conduction angle place in the current mode template of the pre-stored non-linear tunable load of the current value ratio that current conduction angle scans, then can be judged light-emitting device 6 greater than predetermined threshold and the situation of going out occur being transferred.
In addition, accent goes out and judges that the default loadtype that submodule 231 can also be configured to obtain in default load type acquisition module 21 is in the situation of linear load, the current value that scans at current conduction angle according to current scanning device 3, flow through light-emitting device 6 (for example, the average load current value) and predetermined current threshold, judge whether light-emitting device 6 situation of going out occurred being transferred, wherein, this predetermined current threshold is the current value relevant with load when well known to a person skilled in the art, make the brightness of linear light-emitting device minimum.Particularly, if the current value ratio that scans at current conduction angle is somebody's turn to do the little difference of predetermined current threshold greater than predetermined threshold, can judge that then the situation of going out has appearred being transferred in light-emitting device 6.
Flicker judges that the default loadtype that submodule 232 can be configured to obtain in default load type acquisition module 21 is in the situation of non-linear tunable load or linear load, by to current scanning device 3 in several work periods at same current conduction angle current value that scan, that flow through light-emitting device 6 (for example, the average load current value) compares, judge whether light-emitting device 6 flicker occurred.If the current value in these several work periods is different, judge that then flicker has appearred in light-emitting device 6.In addition, judge that being gone out by transferring has appearred in light-emitting device 6 or the flicker situation at least a the time, can reset the type of light-emitting device 6, for example, can automatically detect the type of light-emitting device 6 by such as disclosed method in aforementioned PCT patent application PCT/CN2010/080529, perhaps can input by hand the type of light-emitting device 6, so that light-emitting device 6 is applied suitable operator scheme, thereby make it be operated in good state.
Adjustability judges that the default loadtype that submodule 233 can be configured to obtain in default load type acquisition module 21 is in the situation of non-linear non-adjustable load, by at two predetermined conduction angle current value that scan, that flow through light-emitting device 6 (for example comparing current scanning device 3, whether the adjustability of the average load current value), judging light-emitting device 6 changes.Preferably, these two predetermined conduction angle are respectively any conduction angle between full conduction angle and 36 ° to 90 °.If the difference between the current value that these two predetermined conduction angle scan surpasses predetermined threshold, judge that then variation has occured the adjustability of light-emitting device 6, thereby reset the type of light-emitting device 6.
The device that the above describes in detail by reference to the accompanying drawings according to the output that is used for control load of the embodiment of the invention is light modulating device 1.The below is with reference to the method for Fig. 7 to 11 description according to the output that is used for control load of the embodiment of the invention.The method can be carried out by the device of above-mentioned output for control load.
At first, with reference to flow chart description shown in Figure 7 according to an embodiment of the invention, the method for the output that is used for control load carried out by light modulating device 1.As shown in Figure 7, the method can comprise one or more among default loadtype obtaining step S710, sequential templet matching treatment step S730 and the discrete template matching treatment step S740.
At first, in default loadtype obtaining step S710, obtain the default loadtype of light-emitting device 6.Wherein, should preset loadtype for example can be when initial installation load or replacing load, automatically detect loadtype by utilizing such as disclosed method in aforementioned PCT patent application PCT/CN2010/080529, perhaps preset by the manual input load type of user.
Next, if the default loadtype of in default loadtype obtaining step S710, obtaining be non-linear tunable load (namely, step S720 is yes), then process and proceed to sequential templet matching treatment step S730, and proceed to subsequently discrete template matching treatment step S740.
Otherwise, if the default loadtype of obtaining is linear load or non-linear non-adjustable load (that is, step S720 is no), then process being directly to discrete template matching treatment step S740 in default loadtype obtaining step S710.
Next, the sequential templet matching treatment step of being carried out by the sequential templet matching treatment module 22 in the light modulating device 1 according to an embodiment of the invention with reference to flow chart description shown in Figure 8.Preferably, this processing is that the default loadtype of obtaining in default loadtype obtaining step S710 is in the situation of non-linear tunable radiation emitting device, carry out on the predetermined opportunity such as when turn-offing light-emitting device 6 or light-emitting device 6 carried out light modulation, thereby can not affect user's normal use.
At first, in conduction angle scope determining step S731, according to the current conduction angle of light-emitting device 6 works at present and the minimum conduction angle that is associated with light-emitting device 6, determine the scope of conduction angle.
Then, after having determined the conduction angle scope, in the obtaining step S732 of local mode, in response to the conduction angle that in determined conduction angle scope, changes input ac voltage, at least a current forms that light-emitting device 6 is flow through in scanning (for example, average load current), thereby obtain local mode in the determined conduction angle scope, this local mode represents the relation between the variation conduction angle of at least a current forms that scans and input ac voltage.
Then, in step S733 was made an uproar in filter, the noise of the local mode that filtering is obtained in the obtaining step S732 of local mode was with the relatively large waveform distortion of filtering.Should be pointed out that it is optional filtering the step S733 that makes an uproar.
Next, in coupling step S734, the local mode in the local mode that will obtain in the obtaining step S732 of local mode and the pre-stored current mode template in the determined conduction angle scope mates.
After this, in step of updating S735, result according to the coupling of in coupling step S734, carrying out, upgrade the control parameter of the luminous output of control light-emitting device 6, start conduction angle and/or minimum conduction angle when being used for making light-emitting device 6 be operated in the brightness minimum state such as the minimum of the suitable startup illumination that is used for realizing light-emitting device 6.
According to a specific embodiment of the present invention, as shown in Figure 9, coupling step S734 may further include the first normalization substep S7341, the first coupling substep S7342, the second normalization substep S7344 and the second coupling substep S7345.
Particularly, at first, in the first normalization substep S7341, with the first ratio the local mode that obtains in the obtaining step S732 of local mode is carried out normalization, this first ratio is in the current mode template of the starting point of the local mode that obtains and pre-stored linear load, the ratio between the starting point of the local mode in the determined conduction angle scope.
Then, in the first coupling substep S7342, will be in the first normalization substep S7341 in the current mode template of the local mode after the normalization and linear load, the local mode in the determined conduction angle scope mates.
Next, if mate unsuccessful (step S7343 is no), then process and enter the second normalization substep S7344, wherein, with the second ratio the local mode that obtains in the obtaining step S732 of local mode is carried out normalization, this second ratio is in the current mode template of the starting point of the local mode that obtains and pre-stored non-linear tunable load, the ratio between the starting point of the local mode in the determined conduction angle scope.In addition, if the match is successful (step S7343 is yes), namely variation has occured in loadtype, then resets loadtype.
Next, in the second coupling substep S7345, will be in the second normalization substep S7344 in the current mode template of normalized local mode and non-linear tunable load, the local mode in the determined conduction angle scope mates.
If mate unsuccessful (step S7346 is no), illustrate that then variation has occured load characteristic, so in step of updating S735, by with reference to the feature (such as the flex point of local mode, minimum and maximum slope, monotone decreasing characteristic and the characteristic that increases progressively, local trough and local crest) of extracting from the local mode that scans, automatically upgrade the control parameter of light-emitting device 6, so that the nonlinearity of the operating characteristic of auto-compensation light-emitting device 6.In addition, if the match is successful (step S7346 is yes), then keep former control parameter.
According to above description as can be known, step of updating S735 only the matching result in the first coupling substep S7342 and the second coupling substep S7345 all represent to mate unsuccessful (namely, step S7343 and step S7346 are no) situation under, just upgrade to be used for the control parameter of the luminous output of control light-emitting device 6.
According to a specific embodiment of the present invention, as shown in figure 10, step of updating S735 may further include control parameter recognin step S7351 and the control parameter is upgraded substep S7352.
Particularly, at first, upgrade among the substep S7351 in the control parameter, by identify the control parameter for the luminous output of control light-emitting device 6 with reference to the feature of the local mode that obtains.Next, upgrade among the substep S7352 in the control parameter, upgrade the control parameter of light-emitting device 6 with the control parameter that in control parameter recognin step S7351, identifies.
Next, describe the discrete template matching treatment step of being carried out by the discrete template matching treatment module 23 in the light modulating device 1 according to an embodiment of the invention in detail with reference to the process flow diagram of Figure 11.This processing can be carried out when light-emitting device 6 normal operation, and can not affect user's normal use.
Usually, the default loadtype of obtaining in default loadtype obtaining step S710 is in the situation of non-linear tunable load or linear load, the characteristic of mating to judge light-emitting device 6 by carrying out single-point whether change (for example gone out or glimmer by accent).
Particularly, in accent goes out determining step S741, the default loadtype of obtaining in default loadtype obtaining step S710 is in the situation of non-linear tunable load, according to the current value that scans at current conduction angle, flow through light-emitting device 6 (for example, the average load current value) and the current value at the minimum conduction angle place in the current mode template of pre-stored non-linear tunable load, judge whether light-emitting device 6 is gone out by accent.Particularly, if the little difference of the current value at the minimum conduction angle place in the current mode template of the pre-stored non-linear tunable load of the current value ratio that current conduction angle scans, judge then that light-emitting device 6 is transferred greater than predetermined threshold and go out.
In addition, in accent goes out determining step S741, the default loadtype of obtaining in default loadtype obtaining step S710 is in the situation of linear load, according to the current value that scans at current conduction angle, flow through light-emitting device 6 (for example, the average load current value) and predetermined current threshold, judge whether light-emitting device 6 is gone out by accent, wherein, this predetermined current threshold is the current value relevant with load when well known to a person skilled in the art, make the brightness of linear light-emitting device minimum.Particularly, if the current value ratio that scans at current conduction angle is somebody's turn to do the little difference of predetermined current threshold greater than predetermined threshold, judge that then light-emitting device 6 is gone out by accent.
Gone out (step S744 is yes) by accent if in above-mentioned accent goes out determining step S741, judge light-emitting device 6, then reset the type (step S747) of light-emitting device 6.
In flicker determining step S742, by will in several work periods, comparing at same current conduction angle current value that scan, that flow through light-emitting device 6 (for example, the average load current value), judge whether light-emitting device 6 flicker occurred.If judge that flicker (step S745 is yes) has appearred in light-emitting device 6, then reset loadtype (step S747).
By carrying out the judgement of above characteristic for non-linear tunable load or linear load, can avoid light-emitting device 6 to cause flicker or the situation of being gone out by accent owing to the operator scheme that applies is improper, thereby improved the dimming behavior of device, made the user obtain better dimming effect.
In addition, if the default loadtype of obtaining among the default loadtype obtaining step S710 is non-linear non-adjustable load, judge by carrying out 2 couplings usually then whether the characteristic (for example, adjustability) of light-emitting device 6 variation has occured.
Particularly, in adjustability determining step S743, by comparing at two predetermined conduction angle current value that scan, that flow through light-emitting device 6 (for example, the average load current value), judge whether the adjustability of light-emitting device 6 variation has occured.Preferably, these two predetermined conduction angle are respectively any conduction angle between full conduction angle and 36 ° to 90 °.For example, when the difference between the average load current value that scans at these two conduction angle has surpassed predetermined threshold, variation (step S746 is yes) has occured in the adjustability of then judging light-emitting device 6, thus the loadtype of resetting (step S747), to use suitable operator scheme.
Need to prove, the described method of the embodiment of the invention is corresponding with aforementioned means embodiment, and therefore, the part that does not describe in detail in the embodiment of the method sees also the corresponding description among the device embodiment, repeats no more here.
According to above description to the preferred embodiments of the present invention as can be known, by load characteristic is carried out real time scan, monitoring and renewal, can avoid owing to loadtype change, by the load characteristic that causes such as aging or temperature and change in voltage changes and the loadtype mistake of initial identification causes faulty operation, thereby improved the intelligent of light modulating device 1, and can obtain better dimming behavior.
It may be noted that preferably, the current mode template of above-mentioned linear load, non-linear tunable load and non-linear non-adjustable load can be pre-stored in storer by artificial input.As an alternative, above-mentioned template also can be the current mode template of identifying when initial connection light modulating device 1 and light-emitting device 6.
In addition, should also be noted that above-mentioned series of processes and device also can be by software and/or firmware realizations.In the situation that realize by software and/or firmware, from storage medium or network the program that consists of this software is installed to the computing machine with specialized hardware structure, this computing machine can be carried out various functions when various program is installed.
The step that also it is pointed out that the above-mentioned series of processes of execution can order naturally following the instructions be carried out in chronological order, but does not need necessarily to carry out according to time sequencing.Some step can walk abreast or carry out independently of one another.
It will be understood by those skilled in the art that in the situation that do not deviate from scope of the present invention, except specifically described here, the present invention can change and revise.Significantly all this variations and modification should be regarded as falling in the spirit and scope of the present invention to those skilled in the art.Should be understood that and the present invention includes all such variation and modifications.The present invention also comprise individually or jointly quote in the instructions or point out in steps with feature and described step or feature any two or more arbitrarily and all combinations.
Claims (24)
1. device that is used for the output of control load, described device comprises:
Conduction angle changes circuit, is used for changing the conduction angle of the input ac voltage that is applied to described load;
The current scanning device, for the conduction angle that is applied to the described input ac voltage of described load in response to change, at least a current forms of described load is flow through in scanning; And
Digital signal processing unit, with described current scanning device be connected conduction angle and change circuit and be connected, current mode for the relation between the variation conduction angle of the described at least a current forms that scans by the described current scanning device of referential expression and described input ac voltage, output to described load is controlled
Wherein, described digital signal processing unit comprises: default load type acquisition module is used for obtaining the default loadtype of described load; And
Sequential templet matching treatment module, the default loadtype that is used for obtaining in described default load type acquisition module is in the situation of non-linear tunable load, carry out the sequential templet matching treatment on predetermined opportunity, wherein, described sequential templet matching treatment module comprises:
The conduction angle scope is determined submodule, is used for determining the conduction angle scope according to current conduction angle and the minimum conduction angle that is associated with described load;
Local current mode is obtained submodule, be used for changing described conduction angle in response to determining in described conduction angle scope in the definite conduction angle scope of submodule, according to the local mode that is obtained by described current scanning device described at least a current forms that scan, that flow through described load in the described conduction angle scope;
Matched sub-block is used for that described local mode is obtained the local mode in the conduction angle scope described in local mode that submodule obtains and the pre-stored current mode template and mates; And
Updating submodule is for the control parameter of upgrading described load according to the matching result of described matched sub-block.
2. device according to claim 1, wherein, described sequential templet matching treatment module also comprises:
The filter submodule of making an uproar is used for the described local mode that submodule obtains is obtained in filtering by described local mode noise.
3. device according to claim 1, wherein, described matched sub-block further comprises:
The first normalization section is used for the first ratio the local mode that is obtained being carried out normalization, and described the first ratio is the ratio between the starting point of the described local mode in the current mode template of the starting point of the described local mode that obtains and linear load;
The first matching part is used for and will be mated by the local mode in the conduction angle scope described in the current mode template of the local mode after the normalization of described the first normalization section and linear load;
The second normalization section, be used for the second ratio the local mode that is obtained being carried out normalization, described the second ratio is the ratio between the starting point of the described local mode in the current mode template of the starting point of the described local mode that obtains and non-linear tunable load; And
The second matching part is used for and will be mated by the local mode in the conduction angle scope described in the current mode template of the local mode after the normalization of described the second normalization section and non-linear tunable load.
4. device according to claim 3, wherein, the matching result of described updating submodule in described the first matching part and described the second matching part all represents to mate in the unsuccessful situation, upgrades the control parameter of described load.
5. device according to claim 1, wherein said updating submodule further comprises:
Control parameter identification part is used for identifying the control parameter by the feature with reference to described local mode; And
Control parameter renewal section is for the control parameter of upgrading described load with the control parameter that is identified by described control parameter identification part.
6. device according to claim 5, wherein, described feature comprises with lower at least one: the local trough of the flex point of described local mode, the maximum slope of described local mode, the minimum slope of described local mode, the monotone decreasing characteristic of described local mode, the monotone increasing characteristic of described local mode, described local mode and the local crest of described local mode.
7. device according to claim 1, wherein, described predetermined opportunity is when regulating when turn-offing described load or to described load.
8. device according to claim 1, wherein, described digital signal processing unit also comprises discrete template matching treatment module, is used for carrying out discrete template matching treatment, wherein, described discrete template matching treatment module comprises one or more in the following submodule:
The accent judgement submodule that goes out, the default loadtype that is used for obtaining in described default load type acquisition module is in the situation of non-linear tunable load, according to the current value at the minimum conduction angle place of described current scanning device in the current mode template of current conduction angle current value that scan, that flow through described load and pre-stored non-linear tunable load, judge whether described load is gone out by accent; And the default loadtype of obtaining in described default load type acquisition module is in the situation of linear load, at current conduction angle current value that scan, that flow through described load and predetermined current threshold, judge whether described load is gone out by accent according to described current scanning device;
Submodule is judged in flicker, the default loadtype that is used for obtaining in described default load type acquisition module is in the situation of non-linear tunable load or linear load, at same current conduction angle current value that scan, that flow through described load, judge whether described load glimmers by current scanning device described in more a plurality of work periods; And
Adjustability is judged submodule, the default loadtype that is used for obtaining in described default load type acquisition module is in the situation of non-linear non-adjustable load, at two predetermined conduction angle current values that scan, that flow through described load, judge whether the adjustability of described load variation has occured by more described current scanning device.
9. device according to claim 8, wherein, described two predetermined conduction angle are respectively any conduction angle between full conduction angle and 36 ° to 90 °.
10. device according to claim 1, wherein, described load comprises at least a in light-emitting device, fan and the air conditioner.
11. device according to claim 1, wherein, it is one of following that described current forms includes but not limited to: absolute current mean value, semiperiod current average, rms current value and current integration value.
12. device according to claim 1, wherein, described control parameter comprises with lower at least one: the minimum that is used for realizing the suitable startup output of described load starts conduction angle; And make the described minimum conduction angle of described loaded work piece when critical minimum state.
13. a method that is used for the output of control load may further comprise the steps:
Default loadtype obtaining step is used for obtaining the default loadtype of described load; And
Sequential templet matching treatment step, the default loadtype that is used for obtaining at described default loadtype obtaining step is in the situation of non-linear tunable load, carries out the sequential templet matching treatment,
Wherein, described sequential templet matching treatment comprises:
Conduction angle scope determining step is used for determining the conduction angle scope according to current conduction angle and the minimum conduction angle that is associated with described load;
Local mode's obtaining step, be used in response to the conduction angle that changes input ac voltage in the conduction angle scope of determining in described conduction angle scope determining step, at least a current forms of described load is flow through in scanning, thereby obtain the local mode in the described conduction angle scope, described local mode represents the relation between the variation conduction angle of the described at least a current forms that scans and described input ac voltage;
The coupling step is used for the local mode in conduction angle scope described in described local mode that described local mode obtaining step obtains and the pre-stored current mode template is mated; And
Step of updating is for the control parameter of upgrading described load according to the matching result of described coupling step.
14. method according to claim 13, wherein, described method also comprises:
Filter the step of making an uproar, be used for filtering at the noise of the described local mode that described local mode obtaining step obtains.
15. method according to claim 13, wherein, described coupling step further comprises:
The first normalization substep is used for the first ratio the local mode that is obtained being carried out normalization, and described the first ratio is the ratio between the starting point of the described local mode in the current mode template of the starting point of the described local mode that obtains and linear load;
The first coupling substep is used for the local mode in the conduction angle scope described in the current mode template of the local mode after described the first normalization substep normalization and linear load is mated;
The second normalization substep, be used for the second ratio the local mode that is obtained being carried out normalization, described the second ratio is the ratio between the starting point of the described local mode in the current mode template of the starting point of the described local mode that obtains and non-linear tunable load; And
The second coupling substep is used for the local mode in the conduction angle scope described in the current mode template of the local mode after described the second normalization substep normalization and non-linear tunable load is mated.
16. method according to claim 15, wherein, the matching result of described step of updating in described the first coupling substep and described the second coupling substep all represents to mate in the unsuccessful situation, upgrades the control parameter of described load.
17. method according to claim 13, wherein, described step of updating further comprises:
Control parameter recognin step is used for identifying the control parameter by the feature with reference to described local mode; And
The control parameter is upgraded substep, is used for upgrading with the control parameter that identifies in described control parameter recognin step the control parameter of described load.
18. method according to claim 17, wherein, described feature comprises with lower at least one: the local trough of the flex point of described local mode, the maximum slope of described local mode, the minimum slope of described local mode, the monotone decreasing characteristic of described local mode, the monotone increasing characteristic of described local mode, described local mode and the local crest of described local mode.
19. method according to claim 13, wherein, described method was carried out on predetermined opportunity, when regulating when be the described load of shutoff described predetermined opportunity or to described load.
20. method according to claim 13 also comprises discrete template matching treatment step, is used for carrying out discrete template matching treatment, wherein, and one or more during described discrete template matching treatment may further comprise the steps:
The accent determining step that goes out, the default loadtype that is used for obtaining at described default loadtype obtaining step is in the situation of non-linear tunable load, according to the current value at the minimum conduction angle place in the current mode template of current conduction angle current value that scan, that flow through described load and pre-stored non-linear tunable load, judge whether described load is gone out by accent; And the default loadtype of obtaining in described default loadtype obtaining step is in the situation of linear load, at current conduction angle current value that scan, that flow through described load and predetermined current threshold, judge whether described load is gone out by accent according to described current scanning device;
The flicker determining step, the default loadtype that is used for obtaining at described default loadtype obtaining step is in the situation of non-linear tunable load or linear load, by in more a plurality of work periods at same current conduction angle current value that scan, that flow through described load, judge whether described load glimmers; And
The adjustability determining step, the default loadtype that is used for obtaining at described default loadtype obtaining step is in the situation of non-linear non-adjustable load, at two predetermined conduction angle current values that scan, that flow through described load, judge whether the adjustability of described load variation has occured by relatively.
21. method according to claim 20, wherein, described two predetermined conduction angle are respectively any conduction angle between full conduction angle and 36 ° to 90 °.
22. method according to claim 13, wherein, described load comprises at least a in light-emitting device, fan and the air conditioner.
23. method according to claim 13, wherein, it is one of following that described current forms includes but not limited to: absolute current mean value, semiperiod current average, rms current value and current integration value.
24. method according to claim 13, wherein, described control parameter comprises with lower at least one: the minimum that is used for realizing the suitable startup output of described load starts conduction angle; And make the described minimum conduction angle of described loaded work piece when critical minimum state.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110194629.0A CN102866722B (en) | 2011-07-04 | 2011-07-04 | Device and method for controlling output of load |
| SG2012049656A SG186590A1 (en) | 2011-07-04 | 2012-07-04 | Device and method for controlling output of load |
| HK13106601.3A HK1179700A1 (en) | 2011-07-04 | 2013-06-05 | Device and method for controlling output of load |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201110194629.0A CN102866722B (en) | 2011-07-04 | 2011-07-04 | Device and method for controlling output of load |
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| Publication Number | Publication Date |
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| CN102866722A true CN102866722A (en) | 2013-01-09 |
| CN102866722B CN102866722B (en) | 2014-09-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201110194629.0A Active CN102866722B (en) | 2011-07-04 | 2011-07-04 | Device and method for controlling output of load |
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| Country | Link |
|---|---|
| CN (1) | CN102866722B (en) |
| HK (1) | HK1179700A1 (en) |
| SG (1) | SG186590A1 (en) |
Cited By (3)
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| CN108293287A (en) * | 2015-11-24 | 2018-07-17 | 飞利浦照明控股有限公司 | Lighting device control switch and method |
| WO2019041362A1 (en) * | 2017-09-04 | 2019-03-07 | 路晟科技控股有限公司 | Illumination control system and method |
| CN111433619A (en) * | 2018-06-15 | 2020-07-17 | Oppo广东移动通信有限公司 | Adapter aging detection method and device for equipment to be charged |
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| US20030160578A1 (en) * | 2002-02-22 | 2003-08-28 | Mitsubishi Denki Kabushiki Kaisha | Apparatus for lighting a discharge lamp at electric characteristics appropriate to a type of the discharge lamp |
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| CN101682965A (en) * | 2007-05-17 | 2010-03-24 | 利伯蒂五金制造公司 | Bulb type detector for dimmer circuit and resistance and short circuit detection |
| CN101861762A (en) * | 2007-11-14 | 2010-10-13 | 松下电工株式会社 | Illumination device and illumination apparatus using the same |
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- 2011-07-04 CN CN201110194629.0A patent/CN102866722B/en active Active
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| US20030160578A1 (en) * | 2002-02-22 | 2003-08-28 | Mitsubishi Denki Kabushiki Kaisha | Apparatus for lighting a discharge lamp at electric characteristics appropriate to a type of the discharge lamp |
| DE202005018500U1 (en) * | 2005-11-26 | 2007-04-12 | Merten Gmbh & Co Kg | Double-universal dimmer |
| CN101682965A (en) * | 2007-05-17 | 2010-03-24 | 利伯蒂五金制造公司 | Bulb type detector for dimmer circuit and resistance and short circuit detection |
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| CN108293287A (en) * | 2015-11-24 | 2018-07-17 | 飞利浦照明控股有限公司 | Lighting device control switch and method |
| CN108293287B (en) * | 2015-11-24 | 2020-06-12 | 飞利浦照明控股有限公司 | Lighting device control switch and method |
| WO2019041362A1 (en) * | 2017-09-04 | 2019-03-07 | 路晟科技控股有限公司 | Illumination control system and method |
| CN111433619A (en) * | 2018-06-15 | 2020-07-17 | Oppo广东移动通信有限公司 | Adapter aging detection method and device for equipment to be charged |
Also Published As
| Publication number | Publication date |
|---|---|
| HK1179700A1 (en) | 2013-10-04 |
| SG186590A1 (en) | 2013-01-30 |
| CN102866722B (en) | 2014-09-17 |
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