CN103957635A - On-off device and control realization method thereof - Google Patents
On-off device and control realization method thereof Download PDFInfo
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Abstract
The invention discloses an on-off device and a control realization method thereof. The method includes the steps that a control audio frequency with specific audio frequency attributes is detected, and acoustic-electric conversion processing is conducted on the control audio frequency to obtain a specific impulse sequence; matching is conducted on the specific impulse sequence and a preset on-off control impulse sequence, and whether an on-off control signal is output to a controlled electric appliance or not is selected according to a matching processing result. In the on-off device and the control realization method of the on-off device, a user can use clapping sound or other control audio frequencies with specific audio frequency attributes to achieve on-off control of controlled electric appliances; in the specific realization process, the voice recognition technology and an unconventional voice operated switch do not need to be used, and the on-off device and the control realization method of the on-off device have multiple advantages of being high in identification, high in reliability, high in adaptability and low in cost.
Description
Technical field
The present invention relates to switching technique field, in particular to a kind of acousto-optic controllable switch device and control method thereof.
Background technology
Conventionally, in the public places of unit such as school, office or factories and miness and the public corridor of resident residential area, generally use mechanical, hand-driven switch to carry out light control.But in the middle of reality is used, because mechanical, hand-driven switch needs continually by people for stirring, so that the spoilage of this type of switch is very high, has both increased maintenance capacity, wasted fund, easily has again accident potential.And, this type of switch in use, easily because of user's carelessness, cause forgetting and turn off the light, so that there is the situation of many light fixtures in lighting for a long time, so not only shortened the life-span of light fixture, and wasted again the consumption of the energy, for country, unit, individual have caused no small economic loss.
And along with economic rapid growth, people to the quality of life also in continuous raising, it is more and more strong to serious hope comfortable, convenient and living environment efficiently, for example, aspect house, people have no longer been satisfied with the mode of only carrying out manually indoor light control, and are more happy to, by sound, light is realized to contactless Based Intelligent Control, greatly improve convenience, the comfortableness of life, and further promote energy-conserving and environment-protective.
Based on this, the on-off control system based on sound is arisen at the historic moment, as present common audio-switch, light-operated switch, acousto-optic combination control switch and voice identification control switch on the market.These switches, than traditional mechanical, hand-driven switch, bring certain convenience to daily life, but the present inventor's discovery, these several conventional control switchs, in concrete use procedure, equally also exist some drawbacks separately.
Audio-switch, by detecting the voice signal (any sound all can trigger the control of lighting of light fixture) of certain loudness of source of sound generation, through acoustical-electrical transducer, convert the faint signal of telecommunication to, and this signal of telecommunication is delivered to after amplifying circuit amplifies to processor and processed, the a group acoustic signals that processor is not quite similar amplitude, frequency converts the control signal that a next state changes to, and finally utilize this control signal to control light fixture and light, simultaneously time delay circuit work, and delay this time delay circuit while setting and control light fixture and extinguish reaching.
Light-operated switch, to utilize the sensor devices such as the photo resistance characteristic that resistance changes under strong and weak light condition, the light that identifies varying environment is strong and weak, and finally utilize the change in resistance of photo resistance and realize the switch of logical circuit, and then realize the switch of light fixture is controlled, reach ambient light intensity when high (as daytime) light fixture do not light, without light or light when weak (as night) light fixture be lit.
Sonic-opticalcon trolled switch, is acoustic control and light-operated combination, even if can realize, has sound also light fixture not to be lighted when bright and clear, and light can carry out when weak that acoustic control is turned on light and time delay is turned off the light.Sonic-opticalcon trolled switch makes the control of light fixture have more intellectuality, is current the most a kind of mode of main flow, is also a kind of major way that current low-power consumption mini light night is used.
Visible, the control switch of above-mentioned 3 types can be realized triggering and the control of sound, light or sound+light to lamps, realize Semi-intelligent Modular.Its shortcoming is: for described sonic-opticalcon trolled switch, external noise also can trigger and turn on light, and in the middle of practical application, it only can adopt the mode of time delay to carry out light fixture closing control by time delay circuit, light fixture will again be controlled light fixture and open after closing, need again to manufacture the corresponding sound and open to trigger.Although delay time is adjustable, when user does not want to close or thinks initiatively to close, cannot meet user's requirement.And employing the method, the electric equipment products of carrying out switch control when this sonic-opticalcon trolled switch of application have when a plurality of, the generation that likely can cause switch mistake to be controlled, for example, among user's domestic environment, if this type of switch has all been installed in parlor, bedroom and other rooms, when user is in position, parlor and when manufacturing the sound and wanting to open parlor light fixture, adopt the party's rule very likely the light fixture in other rooms such as bedroom to be lighted simultaneously.
In addition, the current mode that adopts voice identification control switch to control that also occurred.Voice identification control switch is to do and amplify and relevant preliminary treatment after the Sound control signal by user is sent gathers, and the signal obtaining after processing is sent to microprocessor so that itself and the sound model of setting up are in advance contrasted, thereby identify concrete switching control instruction, then accordingly other electric equipment products such as light fixture are carried out to corresponding switch and control.
Typically, this type of speech recognition controlled is divided into training stage and cognitive phase:
Training stage, for setting up the acoustic model of identification elementary cell;
Cognitive phase, the recognition methods that can meet the demands according to the type selecting of recognition system, adopt speech analysis method to analyze the desired speech characteristic parameter of this method, according to certain criterion, compare with estimating with system model, by judgement, draw recognition result, then by control system, realize the corresponding function of controlling.
Current, the application of speech recognition technology is not only controlled for common appliance switch, toward contact, comprises phonetic dialing, Voice Navigation, indoor equipment control, voice document searching, simply dictates data typing etc.Its advantage is: the voice control signal that can user be sent by identification and understanding process changes the logic control order that can be performed accordingly into, has more intellectuality.But when this speech recognition technology is applied to common appliance switch control, mainly contain following shortcoming:
1, with high costs, so the occupation rate of market of class light fixture control switch is extremely low, waste one's talent on a petty job;
2, speech recognition need to be carried out " training " and increase the complexity of using, and only can identify the sound of " training " in use procedure, and versatility is poor;
3, with regard to self adaptation aspect, be further improved yet, be still subject to the impact of particular person, accent or dialect and environment noise, noise, voice, discrimination is not high;
4, the language model using is at present a kind of probabilistic model, does not also use and take linguistics as basic grammatical model, cannot realize the identification of connected speech.
Therefore, how to provide a kind of non-manual, Intelligent Recognition voice command, discrimination high, do not occur mistake control and can realize can be initiatively switch, highly versatile, be subject to environmental noise to disturb little control switch to become technical problem anxious to be resolved in the industry.
Summary of the invention
Given this, the object of the embodiment of the present invention is to provide a kind of acousto-optic controllable switch device and control method thereof.
In order to reach object of the present invention, the present invention realizes by the following technical solutions:
A switch control method, it comprises:
The control audio frequency with special audio attribute detected, described control audio frequency is carried out acoustic-electric conversion process and obtains a concrete pulse train;
Described concrete pulse train is mated with default switch control impuls sequence, and whether select to controlled electric appliance output switch control signal according to matching treatment result.
The control audio frequency preferably, with special audio attribute once produces by least clapping hands.
Preferably, the sensitivity that described control audio frequency detected can regulate manually or automatically according to current environment noise situation, so that described control audio frequency can be identified from described environmental noise.
Preferably, described automatic regulation strategy is:
Detect current environment noise;
When current environment noise level is increase tendency, reduce describedly in order to detect the sensitivity of described control audio frequency, when current environment noise level is while reducing trend, improve described in order to detect the sensitivity of described control audio frequency.
Preferably, in execution, detect there is the control audio frequency of special audio attribute, described control audio frequency is carried out to acoustic-electric conversion process and obtain the step of a pulse train in, before or after, described method also comprises:
Detect current environment light intensity information;
If described current environment light intensity is greater than default intensity of illumination thresholding, directly to controlled electric appliance output closing control signal, otherwise, whether execution is mated described pulse train with default switch-control strategy, and select to controlled electric appliance output switch control signal according to matching treatment result.
Preferably, described concrete pulse train is mated with default switch control impuls sequence, and according to matching treatment result, whether select to the strategy of controlled electric appliance output switch control signal, be:
When described concrete pulse train and the success of default switch control impuls sequences match, the current on off state of judgement controlled electric appliance, if described controlled electric appliance current be opening, to described controlled electric appliance, export closing control signal; If described controlled electric appliance is current, be closed condition, to described controlled electric appliance output, open control signal.
A switching device, it comprises:
Audio detection module, for detection of the control audio frequency to having special audio attribute;
Conversion process module, for carrying out acoustic-electric conversion process to described control audio frequency and obtaining a concrete pulse train;
Whether the first switch is controlled processing module, for described concrete pulse train is mated with default switch control impuls sequence, and select to controlled electric appliance output switch control signal according to matching treatment result.
The control audio frequency preferably, with special audio attribute once produces by least clapping hands.
Preferably, described switching device also comprises:
Adjustment of sensitivity module, for regulating manually or automatically in order to detect the sensitivity of described control audio frequency described audio detection module, so that described control audio frequency can be identified by audio detection module from described environmental noise.
Preferably, described adjustment of sensitivity module comprises:
Noise measuring unit, for detection of current environment noise;
Variation tendency judgement unit, for comparing current environment noise and history environment noise data, to obtain the variation tendency of environmental noise;
Dynamic adjustments unit, when current environment noise level is increase tendency, for reducing described audio detection module in order to detect the sensitivity of described control audio frequency; When current environment noise level is while reducing trend, for improving described audio detection module in order to detect the sensitivity of described control audio frequency.
Preferably, described switching device also comprises:
Light intensity detection module, for detection of current environment light intensity information;
Second switch is controlled processing module, for described current environment light intensity and default intensity of illumination thresholding are compared, when described current environment light intensity is greater than default intensity of illumination thresholding, directly to controlled electric appliance output closing control signal, otherwise, to described the first switch, control processing module output enable signal so that the first switch controls that processing module can be carried out described concrete pulse train and default switch control impuls sequence matching treatment and according to the selection of matching treatment result whether to controlled electric appliance output switch control signal.
Preferably, whether the first switch is controlled the matching treatment result selection that processing module carries out matching treatment according to described concrete pulse train and default switch control impuls sequence and to the strategy of controlled electric appliance output switch control signal, is:
When described concrete pulse train and the success of default switch control impuls sequences match, the current on off state of judgement controlled electric appliance, if described controlled electric appliance current be opening, to described controlled electric appliance, export closing control signal; If described controlled electric appliance is current, be closed condition, to described controlled electric appliance output, open control signal.
An electrical equipment, its spy comprises switching device as above, described switching device comprises:
Audio detection module, for detection of the control audio frequency to having special audio attribute;
Conversion process module, for carrying out acoustic-electric conversion process to described control audio frequency and obtaining a concrete pulse train;
Whether the first switch is controlled processing module, for described concrete pulse train is mated with default switch control impuls sequence, and select to controlled electric appliance output switch control signal according to matching treatment result.
Preferably, described electrical equipment is light fixture.
Technical scheme by the invention described above embodiment can be found out, in embodiments of the present invention, the control audio frequency (such as rhythmic wall or the desktop etc. of beaing) that user can use clap hands sound or other to have special audio attribute is realized the switch of controlled electric appliance (for example light fixture) and is controlled, the embodiment of the present invention is in specific implementation process, need not take speech recognition technology, also unconventional audio-switch, it has high identification, high reliability, high-adaptability, multiple advantage cheaply.The light fixture that can be widely used in house, building, automobile is controlled, and in addition, the switch that also can be applicable to other electric equipment products is controlled, and for example described electric equipment products are the electrical equipment that rated power is not more than 200W.
Accompanying drawing explanation
Fig. 1 is switch control method schematic flow sheet in the embodiment of the present invention;
Fig. 2 is switching device structural representation in the embodiment of the present invention;
Fig. 3 is power supply and switch control unit circuit diagram in the embodiment of the present invention;
Fig. 4 gathers sensing unit circuit diagram in the embodiment of the present invention;
Fig. 5 is microprocessor unit circuit figure in the embodiment of the present invention;
Fig. 6 is embodiment of the present invention pulse duration schematic diagram;
Fig. 7 is embodiment of the present invention software main program FB(flow block);
Fig. 8 is embodiment of the present invention microprocessor software external interrupt service routine schematic flow sheet;
Fig. 9 is embodiment of the present invention microprocessor software in-line interrupt service routine schematic flow sheet;
Figure 10 is embodiment of the present invention microprocessor software in-line interrupt service routine schematic flow sheet.
The realization of the object of the invention, functional characteristics and excellent effect, be described further below in conjunction with specific embodiment and accompanying drawing.
Embodiment
Below in conjunction with the drawings and specific embodiments, technical scheme of the present invention is described in further detail, so that those skilled in the art can better understand the present invention also, can be implemented, but illustrated embodiment is not as a limitation of the invention.
The problem existing in order to solve prior art, the object of the invention is to propose a kind of brand-new, contactless, can master control control switch, Intelligent Recognition sound instruction, without " training ", that instruction can arrange, that anti-interference is good, that parameter is adjustable and safe and practical switch control solution.
As shown in Figure 1, a kind of switch control method that the embodiment of the present invention provides, it comprises the steps:
S10, the control audio frequency with special audio attribute detected, described control audio frequency is carried out acoustic-electric conversion process and obtains a concrete pulse train;
S20, described concrete pulse train is mated with default switch control impuls sequence, and whether select to controlled electric appliance output switch control signal according to matching treatment result.
In the present embodiment, described special audio attribute includes but not limited to rhythm, the sound equipment size of the control audio frequency of input.
Be to be understood that, produce the above-mentioned mode with the control audio frequency of the special audio attribute mode of not only only clapping hands, among practical application scene, the control audio frequency described in those skilled in the art also easily produces by other means with special audio attribute, for example, mode, the mode of stamping one's foot by voice, beat wall or other article mode, by play electronic equipment with provide the similar sound of clapping hands/stamp one's foot mode, play song of specific melody etc.The control audio frequency with special audio attribute that system can be distinguished by identifying this from environmental noise, and reach accordingly the object of corresponding control controlled electric appliance on off state.
Preferably, in the present embodiment, the described control audio frequency with special audio attribute is produced by the mode of clapping hands by user, the number of times that user claps hands by control, or in conjunction with the number of times of clapping hands and clap hands dynamics or the speed of clapping hands, or obtain the corresponding different control audio frequency with special audio attribute in conjunction with number of times, the dynamics of clapping hands and the speed of clapping hands of clapping hands.The described action of clapping hands, in time for relatively continuous consecutive action, therefore, when it is identified, can be obtained up to the pulse train less with a pulse.The control audio frequency with special audio attribute once produces by least clapping hands.Following specific embodiment will mainly be set forth in the mode of clapping hands.
In the present embodiment, described controlled electric appliance can, in house or automobile lamp, can be also other electric equipment products.
Need to carry out under the scene of switch control, user produces the control audio frequency with special audio attribute by clapping hands, to produce different Sound control instructions for specific controlled electric appliance, in embodiments of the present invention, for different controlled electric appliance products, all set in advance different Sound control modes, as clap hands twice for the switch control for controlled electric appliance A, clap hands and for the switch for controlled electric appliance B, control for three times, described Sound control mode adopts different switch control impuls sequences to be represented.At every turn clapping hands of user is all detected and forms a pulse signal, microprocessor is undertaken obtaining corresponding pulse sequence signal after acoustic-electric conversion by the control audio frequency to detecting, and this pulse sequence signal switch control impuls sequence pre-configured with self mated, if the match is successful, illustrate that the target that user carries out switch control is this current controlled electric appliance, now, according to described matching treatment result, whether select to controlled electric appliance output switch control signal.
Adopt aforesaid way, by going out effective switching control instruction according to pre-configured switch control impuls recognition sequence, weed out non-clapping hands and wait the invalid sound instruction of back drop, and then the Push And Release of controlling light fixture moves.
In the present embodiment, the sensitivity that described control audio frequency detected can regulate manually or automatically according to current environment noise situation, so that described control audio frequency can be identified from described environmental noise.
Acoustic sensitivity is adjustable, can realize the rejecting to environmental noise, if compared with under noisy environment, in order to prevent that environmental noise from producing misoperation, the sensitivity that detects described control audio frequency can be turned down, as long as the volume of for example clapping hands is apparently higher than environmental noise, system can be identified effective Sound control instruction; If compared with under quiet environment, environmental noise itself is very weak, now the sensitivity that detects described control audio frequency can be heightened, and user only need clap hands gently and can be identified.
Particularly, described automatic regulation strategy is:
(1) detect current environment noise;
(2) when current environment noise level is increase tendency, reduce describedly in order to detect the sensitivity of described control audio frequency, when current environment noise level is while reducing trend, improve described in order to detect the sensitivity of described control audio frequency.
Judge the variation tendency of described current environment noise level, be mainly by described current environment noise and history environment noise are compared, thereby judge on the whole its variation tendency.
In the middle of practical application, can realize identification, judgement to ambient light, can be arranged on which kind of light when strong and weak this control switch effective, as by day without when illumination, can make any sound instruction invalid, in closed condition, there is not consuming in vain the situation of the energy in lamp.Particularly, in the present embodiment, in execution, detect there is the control audio frequency of special audio attribute, described control audio frequency is carried out to acoustic-electric conversion process and obtain the step of a pulse train in, before or after, described method also comprises:
S100, detection current environment light intensity information;
If the described current environment light intensity of S200 is greater than default intensity of illumination thresholding, directly to controlled electric appliance output closing control signal, otherwise, whether execution is mated described pulse train with default switch-control strategy, and select to controlled electric appliance output switch control signal according to matching treatment result.
Certainly, described intensity of illumination thresholding is also adjustable, for example, because cause specific needs to need to open light fixture by day or under compared with highlighting bar part, now described intensity of illumination thresholding can be improved, even if now external environment condition light is stronger, system is still thought needs execution that described pulse train is mated with default switch-control strategy, and whether select to controlled electric appliance output switch control signal according to matching treatment result, rather than directly to controlled electric appliance output closing control signal.
In the present embodiment, described concrete pulse train is mated with default switch control impuls sequence, and according to matching treatment result, whether select to the strategy of controlled electric appliance output switch control signal, be:
When described concrete pulse train and the success of default switch control impuls sequences match, the current on off state of judgement controlled electric appliance, if described controlled electric appliance current be opening, to described controlled electric appliance, export closing control signal; If described controlled electric appliance is current, be closed condition, to described controlled electric appliance output, open control signal.
For example, conventionally the initial condition of light fixture can be set to closed condition, when user carries out, claps hands accordingly while controlling, and light fixture is lit, and when user is when this carries out corresponding clapping hands and controls, light fixture is closed again.
In some other embodiment, also can design different control audio frequency to control its Push And Release for controlled electric appliance, for example, can design " patting continuously hand twice " open to control it for the light fixture in room A, design " retake continuously hand twice " is closed to control it.
Correspondingly, as shown in Figure 2, the embodiment of the present invention also provides a kind of switching device, and it comprises:
Audio detection module, for detection of the control audio frequency to having special audio attribute;
Conversion process module, for carrying out acoustic-electric conversion process to described control audio frequency and obtaining a concrete pulse train;
Whether the first switch is controlled processing module, for described concrete pulse train is mated with default switch control impuls sequence, and select to controlled electric appliance output switch control signal according to matching treatment result.
For the ease of user can according to actual environment noise situation customization suitable in order to the sensitivity of controlling audio frequency to be detected, described switching device also comprises:
Adjustment of sensitivity module, for regulating manually or automatically in order to detect the sensitivity of described control audio frequency described audio detection module, so that described control audio frequency can be identified by audio detection module from described environmental noise.
When described adjustment of sensitivity module is for automatically regulating in order to detect in the sensitivity of described control audio frequency, in the present embodiment, described adjustment of sensitivity module comprises:
Noise measuring unit, for detection of current environment noise;
Variation tendency judgement unit, for comparing current environment noise and history environment noise data, to obtain the variation tendency of environmental noise;
Dynamic adjustments unit, when current environment noise level is increase tendency, for reducing described audio detection module in order to detect the sensitivity of described control audio frequency; When current environment noise level is while reducing trend, for improving described audio detection module in order to detect the sensitivity of described control audio frequency.
When described controlled electric appliance is light fixture, under some concrete situation, when illumination condition is better, without lighting this light fixture, thereby can save to a certain extent the consumption of the energy, now, described switching device also comprises:
Light intensity detection module, for detection of current environment light intensity information;
Second switch is controlled processing module, for described current environment light intensity and default intensity of illumination thresholding are compared, when described current environment light intensity is greater than default intensity of illumination thresholding, directly to controlled electric appliance output closing control signal, otherwise, to described the first switch, control processing module output enable signal so that the first switch controls that processing module can be carried out described concrete pulse train and default switch control impuls sequence matching treatment and according to the selection of matching treatment result whether to controlled electric appliance output switch control signal.
Particularly, in the present embodiment, whether the first switch is controlled the matching treatment result selection that processing module carries out matching treatment according to described concrete pulse train and default switch control impuls sequence and to the strategy of controlled electric appliance output switch control signal, is:
When described concrete pulse train and the success of default switch control impuls sequences match, the current on off state of judgement controlled electric appliance, if described controlled electric appliance current be opening, to described controlled electric appliance, export closing control signal; If described controlled electric appliance is current, be closed condition, to described controlled electric appliance output, open control signal.
Certainly, in some other embodiment, while carrying out the on off state control of controlled electric appliance according to the control audio frequency of inputting, needn't be in conjunction with the current on off state of controlled electric appliance to make correct control, but can this control audio frequency of direct basis and the different switch control impuls sequence that is preconfigured carry out corresponding on off state and control, when the control audio frequency being transfused to is after acoustic-electric conversion process obtains a concrete pulse train, this concrete pulse train is compared from pre-configured different switch control impuls sequence, if concrete pulse train with in order to control the switch control impuls sequence that controlled electric appliance opens, match, to controlled electric appliance, send and open control signal, if, concrete pulse train with in order to control the switch control impuls sequence that controlled electric appliance closes, match, to controlled electric appliance, send closing control signal.For example, can design " patting continuously hand twice " open to control it for the light fixture in room A, design " retake continuously hand twice " is closed to control it.
In summary, the present invention has following beneficial effect:
1, in order to overcome environmental noise, disturb, the adjustment of sensitivity module of the reserved audio detection module (microphone) of the present invention, user can adjust flexibly according to environment for use, to adapt to different operational environments.
2, in order to overcome the sound of conventional acoustic light-operated switch, can trigger to open and can not trigger the shortcoming of closing, the present invention uses instruction identification open and close instruction, and realization can be driven also switch.
3, in order to overcome out parlor lamp, open by mistake as the situation of other compartment lamps such as bedroom, the invention provides 3 kinds of instructions selects, user can select the instruction mode in each room voluntarily, as parlor can be set to clap hands continuously, turn on lamp for twice, clap hands continuously and close lamp twice again, the lighting lamp state of the existing lamp of control switch intelligent memory, bedroom can be set to clap hands and once carry out open and close, and toilet can be set to clap hands 3 times and carry out open and close instruction, can effectively avoid operation to disturb, realize intelligent.(3 above instructions of clapping hands are long, and convenience is not good, do not do preferably).
4, in order to overcome speech recognition, need only to identify after " training " and " training " shortcoming of specific sound, time length and the interval time of the present invention's pulse signal that sound changes out that adopts Intelligent Recognition to clap hands, without " training ", everybody all can, and between clapping hands, be separated with and add allowed time error, the trickle time difference of custom of clapping hands of allowing different people, can reach the discrimination that is close to 99%.
5, environmental noise easily causes misoperation to acoustic control, and environmental noise is more prone to reduce discrimination during speech recognition.As in the acoustic control standby stage, cry and scream sound, animal bark etc. of the sound that outdoor tucket, thing drop, people's footsteps, child all easily make acoustic control work, and cause the unlatching of lamp; And the impact of these sound when speech recognition is just larger, noise adds the fashionable signal to noise ratio that greatly reduces effective sound, causes instruction to be difficult to identification.In order to overcome the impact of noise, the present invention mainly overcomes by two kinds of modes:
1), employing program is distinguished clapping and environmental noise, such as what set, be to clap hands for twice, in detection, clap hands and continue after duration, by timer measuring, clap hands the time interval again, the time interval meets scope and just thinks effective instruction, while clapping hands for the second time, detect again duration, measuring intervals of TIME again, so step-by-step counting is carried out in circulation differentiation simultaneously, less or how to be all regarded as illegal command, so only clap hands for twice and can be identified, one or many can not be considered to effective instruction, and other tuckets, footsteps, the continual sound of crying and screaming etc. all can be screened out by comparison sound duration and interval duration, greatly reduce the possibility of misoperation,
2), be provided with acoustic sensitivity adjusting knob, can regulate microphone sensitivity according to current environment noise, thereby realize environmental noise filtering, improve signal to noise ratio.
6, in order directly to replace in existing house decoration and generally to use the bright dress hand switch of 86 concealed installation, the present invention adopts two-wire system directly to substitute existing switch, only needs the live wire in civil power and connects the control line of lamp, without zero line, accesses.(if be designed to substitute 86 type regular taps preferably by all knobs with control and be all placed on front panel under front shroud, so just without pulling down switch integral body, need to take off gently cover plate be customized parameter, adjusted bonnet and returned cover plate).
7,, in order to reach intelligent, if think room no man without the input of any sound instruction in 3 hours, based on energy-conservation consideration, close light fixture.
For realizing above-mentioned functions, in a specific embodiment of the present invention, described switching device includes power pack, gathers transducing part, microprocessor portion, switching control section.
The embodiment of the present invention is by " microphone voice collection " and " adjustment of sensitivity knob " collected sound signal, and the voice signal gathering is carried out to acoustic-electric conversion, deliver to again " amplifying whole ripple/logic processing module " and carry out signal amplification, shaping pulse and preliminary logic judgement, the status signal of " light sensor " can participate in logic judgement, when light sensor detects external environment condition and more secretly can turn on light, now just allow sound instruction to deliver to microprocessor, produce and interrupt, microprocessor responds is interrupted, open timer, open Interruption, Interruption higher priority is set, utilize timer to start signal to carry out pulse duration examination, the actions such as pulse spacing examination and number count, end-of-pulsing surpasses the largest interval time and thinks the end of clapping hands, read useful pulse quantity, then it is mated with pre-configured control command (a series of switch control impuls sequence signal being configured), judgement arranges the set number of times of selector switch with the pre-configured number of times of clapping hands, whether mate at adjacent pulse interval time interval, conform to and think that instruction is effective, read " lamp switch status register " state, if now lamp is opening, by " controlling output " and " control change-over circuit ", controlling lamp closes, if lamp is closed condition, controls lamp and open.After control opening, open dormancy timer, the acoustic impluse signal of monitoring input port, in 3 hours during voiceless sound instruction, thinks unmanned in family, automatically by control circuit, closes light fixture, reaches energy-conservation object.
Particularly, its detailed circuit design can be:
1., power pack, realization is 5V direct current by the electric main rectification step-down of 220V/50Hz, the logic digital circuits of the system of giving provides power supply, this element is designed to directly get 220V/50HZ civil power and carries out work, when being applied to family's light fixture and other electric types, without separately connecing transformer etc., convenient practical.This circuit is two-wire system mode, has live wire and light fixture control line, and without zero line, externally two binding posts only, can directly replace common single control switch, and needn't change original illuminating line.Rectification and step-down are comprised of diode bridge rectification and RC step-down, this element is realized and civil power alternating voltage is passed through after bridge rectifier to RC step-down, using voltage stabilizing didoe voltage stabilizing is 8.2V direct voltage, by filter capacitor and the further step-down of voltage stabilizing IC 78L05, be that stable 5V direct current is exported again, reliable power supply be provided to whole logical circuit.
2., gather transducing part, realize voice signal and change the electronic pulse signal that can identify for microprocessor into, through amplifying, whole ripple, microprocessor is delivered in logical conversion, herein by one-level transistor amplifier, whole wave circuit and three grades of NAND gate form, amplifying circuit is realized the negative half-cycle of sound small-signal is amplified and preliminary whole ripple, output pulse signal, logic has comprised the strong and weak differentiation of light herein, shielded sound instruction during light intensity (light intensity degree is adjustable), two-stage NAND gate output logic is identical with input logic, just pulse signal is shaped as to the discernible Transistor-Transistor Logic level signal of microprocessor again, it is high level that the third level is realized normality, the logical transition that low level triggers, being convenient to trigger processor interrupts.If have, clap hands for twice, after this processes, have first latter two pulse signal to deliver to subordinate's microprocessor unit, if having, clap hands for three times, have three, if there is constant noise, have lasting pulse signal, by microprocessor unit, screened; Light sensor (containing adjustment of sensitivity knob), the detection of realization to outside ambient light power, for whether logical block responds sound instruction, provide foundation, realize sensitization and instruction is effectively screened, can be adjusted under which kind of light condition and can realize sound instruction identification.
3., microprocessor portion, this part consists of 8 single-chip microcomputer mini systems of attiny13, by software programming, can be achieved as follows function:
A, the initialization to system initial state and lamp state, comprise the effective instruction item that reading command selector switch arranges;
B, sound instruction input is monitored and is screened, and in instruction produces, have no progeny to the differentiation of instruction and response,
C, when instruction is screened, enable timer internal, aid identification sound instruction validity, rejects illegal command;
If d, 3 hours think room no man without any sound instruction input, based on energy-conservation consideration, close light fixture;
E, output TTL control signal, be convenient to realize light fixture Push And Release by " switch control unit ".
4., switching control section, realize direct current control and exchange, this element, by the TTL control level of microprocessor output, by one-level logic level transition and one-way SCR, is realized the switch of electricity-saving lamp, incandescent lamp, LED lamp is controlled; Separately include an output overcurrent protection tube, if short circuit appears in light fixture, can automatically cut off power supply, to guarantee safety.
Referring to the preferred embodiment shown in Fig. 3, power supply and the ON-OFF control circuit figure of the switching device that it provides for the embodiment of the present invention, divide three parts to describe below:
1. live wire access terminal J2 and light fixture control terminal J3 " two-wire system " Wiring port of regular tap as an alternative, through bridge rectifier, (bridge rectifier consists of 4 rectifier diodes 220V electric main, be respectively D1 ~ D4), again after the 9th decompression capacitor C9 and the 15 resistance R 15 step-downs, by exporting the accurate direct voltage of 8.2V clamper after the 6th voltage stabilizing didoe D6 voltage stabilizing, D6 selects 0.5W, 8.2V voltage stabilizing didoe, recycle the 5th voltage stabilizing didoe D5 one-way conduction characteristic, voltage is one-way transmitted to the 5th electrochemical capacitor C5 anodal, utilize the impulse electricity characteristic of large bulk capacitance, by C5,8.2V is collimated to rheology and be changed to 8.2V compared with constant DC voltage, completed the action of AC-DC.This friendship lands vertically and presses mapping mode to be mainly applicable to the logic digital circuits that load power consumption is lower.
2. converted 8.2V direct voltage is 8.2V by clamper through the 7th voltage-stabiliser tube D7 again, to increase stability, avoid the impact of the too high too low fluctuation of line voltage to back segment, again after the 6th ceramic condenser C6 filtering, by step-down chip (78L05) by 8.2V step-down for to stablize after 5V, after the 8th ceramic condenser C8 and the 2nd ceramic condenser C2 filtering, export to logic digital circuits.
3. ON-OFF control circuit, the TTL control signal PB3-CTL of single-chip microcomputer output is after the 7th resistance R 7 Circuit Matchings, utilize the saturated cut-off characteristics of high-voltage three-pole pipe U4, control signal is added to the base stage B of high-voltage three-pole pipe U4, by base stage low and high level, determine that high-voltage three-pole pipe U4 is in saturated or cut-off state, high-voltage three-pole pipe U4 has also played the effect of isolation 220V interchange with logic digital circuits herein, again by conducting or cut-off the 12 resistance R 12, after the 3rd resistance R 3 and the 6th resistance R 6 dividing potential drops, meet the control utmost point G of one-way SCR Q1, controllable silicon Q1 is controlled to utmost point G and apply the A that high or low level can be realized controllable silicon Q1, the conducting of the K utmost point or cut-off, thereby in conjunction with the no-voltage transient state of alternating current, realize the Push And Release action of light fixture.
As: when PB3-CTL control signal is TTL high level, high-voltage three-pole pipe U4 base stage B is high, high-voltage three-pole pipe U4 is in saturation condition, collector electrode C and emitter-base bandgap grading E conducting, two positive half voltage after bridge rectifier is by the 12 resistance R 12, the 3rd resistance R 3 and the 6th resistance R 6 are received ground, at controllable silicon Q1, control utmost point G end and obtain dividing potential drop, ceiling voltage is 220*[1.4/(47+2.2+1.4)]=6V, therefore control controllable silicon A and the conducting of the K utmost point, can form the current circuit of J2-D4-Q1-D2-R2-J3-lamp-zero line, lamp is lit, 220V positive half period finishes, after voltage makes zero, lamp extinguishes, after a rear positive half period starts, because controlling utmost point G, controllable silicon Q1 has again cut-in voltage, therefore lamp starts simultaneously, the switching frequency human eye of 50hz cannot be perceiveed, seem that lamp is in opening always.When PB3-CTL control signal is TTL low level, high-voltage three-pole pipe U4 base stage B is low, high-voltage three-pole pipe U4 is in cut-off state, emitter-base bandgap grading E is high-impedance state, owing to receiving ground by the 3rd resistance R 3 and the 6th resistance R 6, therefore emitter-base bandgap grading E is low level, therefore it is low that controllable silicon Q1 controls utmost point G, controllable silicon Q1 is without control, when each 220V positive half period finishes, after voltage makes zero, light fixture extinguishes, after a rear positive half period starts, because controllable silicon Q1 controls utmost point G still without cut-in voltage, therefore lamp still keeps extinguishing, thereby realized light fixture closing control.
Referring to the preferred embodiment shown in Fig. 4, the collection sensing circuit that it shows the switching device that the embodiment of the present invention provides, divides three part explanations below:
1. 54dB high sensitivity Electret condenser microphone U1, after the 18 resistance R 18 and the first adjustable resistance 307 current limlitings, changes voice signal into audio voltage signal, then is coupled to triode Q2 input by the 12 capacitor C 12.The 4th resistance R 4 and the 5th resistance R 5 are the biasing resistor of 9014NPN triode Q2, audio voltage negative polarity signal is after triode Q2 amplifies, 1 pin that enters four NAND gate CD4011 from the collector electrode of triode Q2 carries out logical operation, after U5-A and the whole ripple of U5-B, through the 8th diode D8, give the tenth capacitor C 10 chargings, the tenth capacitor C 10 and the tenth resistance R 10 compositions discharge and recharge whole wave circuit, single audio frequency pulse higher than certain amplitude is charged to C10, during the pulse spacing, C10 slowly discharges by R10, can maintain just very high level of C10, next pulse then, continue charging, keep high level, pulse train signal in clapping can be become to the quasi-square wave signal of a sawtooth like ripple, when clapping finishes, C10 has slowly discharged, C10 positive pole becomes low level, realize whole ripple.Wherein, whole ripple signal enters back segment logical operation, please specifically referring to following the, 3. describes in detail, regulates the current limliting that adjustable resistance 307 can microphone, thereby realize microphone sensitivity, regulates.
2. the 17 resistance R 17 is photo resistance, resistance changes with extraneous light, the minimum 10K Ω of resistance when light is strong, the highest 1M Ω of resistance when light is weak, it is connected with the 8th adjustable resistance R8 and the 9th resistance R 9, direct current 5V voltage is carried out to dividing potential drop, as shown in Figure 4, after dividing potential drop, access 2 pin of four NAND gate CD4011.When light intensity, R17 resistance is little, 2 pin of inputting four NAND gate CD4011 after dividing potential drop are low level, when light is weak, R17 resistance is larger, and 2 pin of inputting four NAND gate CD4011 after dividing potential drop are high level, and certain the 8th adjustable resistance R8 adjusts by resistance size, minute voltage level that the strong and weak grade of adjustable light is corresponding different, thus realize the critical selection to light power.
3. four NAND gate CD4011 are logical AND not gate computing circuits of one 14 pin Si roads, two inputs, for making finally to export to the pulse signal of microprocessor, while meeting voiceless sound, for high, while having sound, be low, just use four NAND gate CD4011 to realize the whole function that involves logical conversion of secondary.As shown in Figure 4, when light intensity, 2 pin perseverances are low level, and no matter 1 pin is high level or low level (no matter having or not acoustic impluse), after NAND gate A, 3 pin outputs are high level, through sending into 5,6 pin of NAND gate B, 4 pin outputs are low level, then send into 8,9 pin of NAND gate C, 10 pin outputs are high level, all the time can not trigger the external interrupt of microprocessor, during the existing light intensity of historical facts or anecdotes, all sound instructions are invalid, reach and close the object that voice recognition is controlled.When light is weak, 2 pin perseverances are high level:
A, when voiceless sound no pulse, 308 1 pin is low level, 3 pin are high level, 4 pin are low level, C10 is discharged and is not charged by R10,10 pin are high level, do not trigger microprocessor external interrupt;
B, when having sound, there is pulse train, through triode 306, audio voltage is amplified, 308 1 pin is high level pulse, 3 pin are low level, 4 pin are high level, and impulse duration charges to C10 by D8, and during the pulse spacing, C10 slowly discharges by R10,308 9 pin still can maintain high level, and next pulse recharges.
So repeat, realize whole ripple, can change a lasting high level into by the pulse train when having sound, therefore 10 pin are low level.NAND gate A and B have realized the whole ripple of secondary, NAND gate C has realized the logical conversion that adapts to microprocessor, in the time of finally can realizing voiceless sound, high level is without interruption, there is low level generation interruption of sound, low level pulse width waits to be substantially longer than the sound duration, by the 10 pin PULSE_IN networks of four NAND gate CD4011, deliver to microprocessor and measure, calculate and screen.
Referring to the preferred embodiment shown in Fig. 5, it shows the circuit diagram of the microprocessor portion that the embodiment of the present invention provides, this microcontroller circuit consists of the minimum system of microprocessor ATTINY13, ATTINY13 is a high-performance of AVR, the 8-bit microprocessor of low-power consumption, the In-System Programmable Flash that has 1K byte, 64 byte In-System Programmable EEPROM, there is demarcation oscillator in sheet, 8 bit timing devices and 6 IO mouths that independent reusable is interruption/ADC with independent pre-divider, be respectively PB0 ~ PB5, can work in 2.7V ~ 5.5V voltage range.
As shown in Figure 5, wherein: 8 pin and 4 pin are respectively 5V direct current supply and the grounding leg of microprocessor 309, the 3rd capacitor C 3 realizes power filter; 1 pin and the 16 resistance R 16 and the 4th capacitor C 4 form the electrify restoration circuit of minimum system; 2 pin are lamp switch control signal Transistor-Transistor Logic level output pin PB3, are defaulted as low level output; 3 pin are external interrupt input pin PB4, for acoustic impluse, input; 5,6,7 pin are that instruction type is selected pin PB0, PB1, PB2, be initialized as the input with pull-up resistor, by stirring selector switch SW-4P, can select 2 pin of arbitrary pin and selector switch SW-4P to connect, external the 13 resistance R 13 of 2 pin of selector switch SW-4P is to ground, thereby realize 309 the arbitrary pin of 5,6,7 pin input low level can be set, as instruction uniqueness, select.The external interrupt signal that acoustic impluse produces is delivered to 3 pin of microprocessor ATTINY13 through PULSE_IN network through the 14 resistance R 14, interrupt response program by microprocessor ATTINY13 is carried out analysis and identification to voice signal, be judged as the laggard line delay counting of useful signal, identify complete clapping hands after instruction, with 5, 6, the instruction of 7 pin settings contrasts, if meet, think effective instruction, then read the 2 pin output states of microprocessor ATTINY13, export corresponding control command, ON-OFF control circuit by above introduction realizes the unlatching of light fixture or closes.By stirring selector switch SW-4P, the arbitrary pin of 5,6,7 pin of microprocessor ATTINY13 is set low herein, sound instruction type can be set be once or twice or be three times, by the internal processes of microprocessor, differentiate processing.
Referring to the preferred embodiment block diagram shown in Fig. 6 time shaft schematic diagram and Fig. 7, Fig. 8, this time shaft schematic has been levied the pulse length scope of clapping hands of measuring, and can comprise the time interval scope that most people is clapped hands and is accustomed to; This microprocessor software FB(flow block) describes in two sub-sections, and one is main program part, and another is external interrupt and timer interrupt service routine part.Shown in figure 7, in the present embodiment, definition IO mouth function comprises:
PB0=3 control inputs;
PB1=2 control inputs;
PB2=1 control inputs;
PB3=lamp switch is controlled;
(1=opens, and 0=closes);
PB4=acoustic impluse interrupting input.
In addition, after to the initialization of IO mouth, wherein, m=0, interrupts initialization, comprising:
PB0, PB1, PB2 are initialized as IO input;
PB3 is initialized as external interrupt input, and low level is interrupted;
PB4 is initialized as IO output, and output 0, closes light fixture;
Timer interrupts preferential external interrupt;
Whether definition has acoustic impluse m=0 to represent voiceless sound pulse, and m=1 indicates.
Referring to Fig. 8, it shows the PB4 external interrupt service routine flow chart that the embodiment of the present invention provides.
Referring to Fig. 9, it shows 3 hours timer interrupt service routines that the embodiment of the present invention provides.
Referring to Figure 10, it shows 100ms and 250ms timer interrupt service routine that the embodiment of the present invention provides.
With reference to above-mentioned Fig. 7-10, in conjunction with being used for acoustic impluse identification, the time span of clapping hands measurement and examination, clap hands time interval measurement and examination, the number of times of clapping hands judgement and having controlled light fixture Push And Release.
Correspondingly, the embodiment of the present invention also provides a kind of electrical equipment accordingly, and it comprises switching device as above, continues with reference to shown in figure 2, and described switching device comprises:
Audio detection module, for detection of the control audio frequency to having special audio attribute;
Conversion process module, for carrying out acoustic-electric conversion process to described control audio frequency and obtaining a concrete pulse train;
Whether the first switch is controlled processing module, for described concrete pulse train is mated with default switch control impuls sequence, and select to controlled electric appliance output switch control signal according to matching treatment result.
Detailed description for described switching device can, with reference to above, repeat no more herein.Should be appreciated that in the present invention, described electrical equipment includes but not limited to light fixture (house or automobile), household electrical appliance, portable equipment etc.
The foregoing is only the preferred embodiments of the present invention; not thereby limit the scope of the claims of the present invention; every equivalent structure or conversion of equivalent flow process that utilizes specification of the present invention and accompanying drawing content to do; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (14)
1. a switch control method, is characterized in that, comprising:
The control audio frequency with special audio attribute detected, described control audio frequency is carried out acoustic-electric conversion process and obtains a concrete pulse train;
Described concrete pulse train is mated with default switch control impuls sequence, and whether select to controlled electric appliance output switch control signal according to matching treatment result.
2. switch control method as claimed in claim 1, is characterized in that, described in there is special audio attribute control audio frequency by least clapping hands, once produce.
3. switch control method as claimed in claim 1, it is characterized in that, the sensitivity that described control audio frequency detected can regulate manually or automatically according to current environment noise situation, so that described control audio frequency can be identified from described environmental noise.
4. switch control method as claimed in claim 3, is characterized in that, described automatic regulation strategy is:
Detect current environment noise;
When current environment noise level is increase tendency, reduce describedly in order to detect the sensitivity of described control audio frequency, when current environment noise level is while reducing trend, improve described in order to detect the sensitivity of described control audio frequency.
5. switch control method as claimed in claim 1, it is characterized in that, in execution, detect there is the control audio frequency of special audio attribute, described control audio frequency is carried out to acoustic-electric conversion process and obtain the step of a pulse train in, before or after, described method also comprises:
Detect current environment light intensity information;
If described current environment light intensity is greater than default intensity of illumination thresholding, directly to controlled electric appliance output closing control signal, otherwise, whether execution is mated described pulse train with default switch-control strategy, and select to controlled electric appliance output switch control signal according to matching treatment result.
6. the switch control method as described in claim 1-5 any one, it is characterized in that, described concrete pulse train is mated with default switch control impuls sequence, and according to matching treatment result, whether select to the strategy of controlled electric appliance output switch control signal, be:
When described concrete pulse train and the success of default switch control impuls sequences match, the current on off state of judgement controlled electric appliance, if described controlled electric appliance current be opening, to described controlled electric appliance, export closing control signal; If described controlled electric appliance is current, be closed condition, to described controlled electric appliance output, open control signal.
7. a switching device, is characterized in that, comprising:
Audio detection module, for detection of the control audio frequency to having special audio attribute;
Conversion process module, for carrying out acoustic-electric conversion process to described control audio frequency and obtaining a concrete pulse train;
Whether the first switch is controlled processing module, for described concrete pulse train is mated with default switch control impuls sequence, and select to controlled electric appliance output switch control signal according to matching treatment result.
8. switching device as claimed in claim 7, is characterized in that, described in there is special audio attribute control audio frequency by least clapping hands, once produce.
9. switching device as claimed in claim 7, is characterized in that, also comprises:
Adjustment of sensitivity module, for regulating manually or automatically in order to detect the sensitivity of described control audio frequency described audio detection module, so that described control audio frequency can be identified by audio detection module from described environmental noise.
10. switching device as claimed in claim 9, is characterized in that, described adjustment of sensitivity module comprises:
Noise measuring unit, for detection of current environment noise;
Variation tendency judgement unit, for comparing current environment noise and history environment noise data, to obtain the variation tendency of environmental noise;
Dynamic adjustments unit, when current environment noise level is increase tendency, for reducing described audio detection module in order to detect the sensitivity of described control audio frequency; When current environment noise level is while reducing trend, for improving described audio detection module in order to detect the sensitivity of described control audio frequency.
11. switching devices as claimed in claim 7, is characterized in that, also comprise:
Light intensity detection module, for detection of current environment light intensity information;
Second switch is controlled processing module, for described current environment light intensity and default intensity of illumination thresholding are compared, when described current environment light intensity is greater than default intensity of illumination thresholding, directly to controlled electric appliance output closing control signal, otherwise, to described the first switch, control processing module output enable signal so that the first switch controls that processing module can be carried out described concrete pulse train and default switch control impuls sequence matching treatment and according to the selection of matching treatment result whether to controlled electric appliance output switch control signal.
12. switching devices as described in claim 7-11 any one, it is characterized in that, whether the first switch is controlled the matching treatment result selection that processing module carries out matching treatment according to described concrete pulse train and default switch control impuls sequence and to the strategy of controlled electric appliance output switch control signal, is:
When described concrete pulse train and the success of default switch control impuls sequences match, the current on off state of judgement controlled electric appliance, if described controlled electric appliance current be opening, to described controlled electric appliance, export closing control signal; If described controlled electric appliance is current, be closed condition, to described controlled electric appliance output, open control signal.
13. 1 kinds of electrical equipment, is characterized in that, comprise the switching device as described in claim 7-12 any one.
14. electrical equipment as claimed in claim 13, is characterized in that, described electrical equipment is light fixture.
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| CN113257241A (en) * | 2020-02-11 | 2021-08-13 | 青岛海尔空调器有限总公司 | Intelligent household appliance and voice control method thereof |
| CN112614332A (en) * | 2020-12-10 | 2021-04-06 | 维沃移动通信有限公司 | Terminal control method and device and electronic equipment |
| CN113314113A (en) * | 2021-05-19 | 2021-08-27 | 广州大学 | Intelligent socket control method, device, equipment and storage medium |
| CN113314113B (en) * | 2021-05-19 | 2023-11-28 | 广州大学 | Intelligent socket control method, device, equipment and storage medium |
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