CN104299480A - Smart switch, control method thereof, smart control network - Google Patents
Smart switch, control method thereof, smart control network Download PDFInfo
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- CN104299480A CN104299480A CN201310274443.5A CN201310274443A CN104299480A CN 104299480 A CN104299480 A CN 104299480A CN 201310274443 A CN201310274443 A CN 201310274443A CN 104299480 A CN104299480 A CN 104299480A
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
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Abstract
The invention relates to a smart switch, a control method thereof, a smart control network. The control method includes the following steps that: control commands of a controlled load are obtained; according to a relationship that the instantaneous value changes with time, the frequency of alternating current is determined, and a time point of zero crossing of the alternating current is obtained according to the frequency; a time point of the action of the relay is determined according to the time point of zero crossing of the alternating current and action delay time of the relay; and the relay is controlled to act according to the time point of the action of the relay. With the smart switch, the control method thereof and the smart control network of the invention adopted, the relay and the smart switch can be effectively protected, and the service lives of the relay and the smart switch can be prolonged, and the action time of the relay can be flexibly determined according to the action relay time of the relay, and therefore, the control method can be adaptive to different relays.
Description
Technical field
The present invention relates to switching technique field, particularly relate to a kind of intelligent switch and control method, intelligent control network.
Background technology
In switch control rule field; usually the open and close by driving the actuating of relay to carry out control load, relay, in moment that is closed or that disconnect, often can produce larger surge voltage; cause damage to relay, the life-span of the electronic switch causing relay or have relay is shorter.
Summary of the invention
Provide hereinafter about brief overview of the present invention, to provide about the basic comprehension in some of the present invention.Should be appreciated that this general introduction is not summarize about exhaustive of the present invention.It is not that intention determines key of the present invention or pith, and nor is it intended to limit the scope of the present invention.Its object is only provide some concept in simplified form, in this, as the preorder in greater detail discussed after a while.
The invention provides a kind of intelligent switch and control method, intelligent control network, can available protecting relay and intelligent switch, extend relay and intelligent switch life-span.
On the one hand, the invention provides a kind of intelligent switch, comprising:
At least one relay, for connecting load;
Pick-up unit, for detecting the instantaneous value of the alternating current passing into the relay that controlled load connects;
Acquisition module, comprise for according to described instantaneous value over time relation determine the frequency acquisition module of the frequency of described alternating current, and for the time-obtaining module by the time point of this frequency acquisition zero-crossing of alternating current;
Time Calculation module, for according to the time point of zero-crossing of alternating current and actuating of relay time delay, calculates the time point of pilot relay action;
Controller, for the time point pilot relay action according to described pilot relay.
On the other hand, the invention provides a kind of intelligent control network, comprise above-mentioned intelligent switch, described intelligent switch is connected with load.
On the other hand, the present invention also provides a kind of control method of intelligent switch, comprising:
Obtain the steering order of controlled load;
Detect the instantaneous value of the alternating current passing into the relay that controlled load connects;
According to described instantaneous value over time relation determine the frequency of described alternating current, and by the time point of this frequency acquisition zero-crossing of alternating current;
According to the time point of zero-crossing of alternating current and actuating of relay time delay, determine the time point of pilot relay action;
According to the time point of described pilot relay action, the action of pilot relay.
In technical scheme provided by the invention, by detecting the instantaneous value passing into the alternating current of the relay be connected with controlled load, and according to the frequency of instantaneous value time dependent relation determination alternating current detected, due to can according to the time point of ac frequency determination zero-crossing of alternating current, and according to the time point of zero-crossing of alternating current and actuating of relay time delay, calculate the time point of pilot relay, therefore when receiving the steering order for control load, can at suitable time point pilot relay, such as pilot relay action before zero crossing, make relay just action near zero point phase place, available protecting relay is not by heavy current impact, cost is also lower.Therefore; this programme can not only available protecting relay and intelligent switch; extend relay and intelligent switch life-span, and the time point of pilot relay action can be determined for the action that relay is intrinsic time delay flexibly, therefore can realize the self-adaptation to different relay.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
The block diagram of a kind of intelligent switch that Fig. 1 provides for the embodiment of the present invention one;
Fig. 2 is the phase curve figure of the alternating current that the present invention obtains according to the instantaneous value of alternating current;
The block diagram of a kind of intelligent control network that Fig. 3 provides for the embodiment of the present invention two;
The process flow diagram of the control method of a kind of intelligent switch that Fig. 4 provides for the embodiment of the present invention three.
Embodiment
For making the object of the embodiment of the present invention, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, instead of whole embodiments.The element described in an accompanying drawing of the present invention or a kind of embodiment and feature can combine with the element shown in one or more other accompanying drawing or embodiment and feature.It should be noted that for purposes of clarity, accompanying drawing and eliminate expression and the description of unrelated to the invention, parts known to persons of ordinary skill in the art and process in illustrating.Based on the embodiment in the present invention, other embodiments all that those of ordinary skill in the art obtain under the prerequisite not paying creative work, all belong to the scope of protection of the invention.
Embodiment one
The block diagram of a kind of intelligent switch that Fig. 1 provides for the embodiment of the present invention one.This intelligent switch is connected with load, and it is specifically for the state of control load, in a kind of alternate configurations, this intelligent switch can be provided with local load module, this local load module can comprise, such as, to be arranged on this intelligent switch, for control linkage to the button of the load of this intelligent switch; Intelligent switch also can be provided with such as, remote communication module, for from the long-range reception steering order of other intelligent switch, with the state making this intelligent switching control be connected to its load.
As shown in Figure 1, the intelligent switch that the present embodiment provides comprises: at least one relay 12, pick-up unit 14, acquisition module 16, Time Calculation module 18 and controller 19, acquisition module 16 is connected with pick-up unit 14 and Time Calculation module 18, and Time Calculation module 18 is connected with controller 19.Controller 19 is specifically connected with relay 12 by driving circuit.This at least one relay 12 is for connecting load, and when needing the state changing a certain load, controller can under the triggering of local keys of key or under the triggering of the steering order of long-range reception, relay 12 action of the controlled load of control linkage.The actuating of relay, specifically can comprise pilot relay and disconnect or close.Above-mentioned controlled load refers to, the load corresponding with the steering order that controller 19 obtains.Above-mentioned acquisition module 16, Time Calculation module 18 can integrate with controller 19.
Such as, by triggering the button of corresponding controlled load on this intelligent switch, come to controller 19 input control order.Or the steering order that controller 19 can send according to other intelligent switch, controls the actuating of relay be connected with controlled load.
Pick-up unit 14 is for detecting the instantaneous value of the alternating current passing into the relay 12 that controlled load connects, and particularly, alternating current is before passing into relay, and first device 14 detects its instantaneous value after testing.
Acquisition module 16 comprises frequency acquisition module 162, for the instantaneous value that receiving detection device 14 detects.Frequency acquisition module 162 is for the frequency according to instantaneous value relation determination over time alternating current.
Acquisition module 16 also comprises time-obtaining module 164, for the time point of frequency acquisition zero-crossing of alternating current obtained by frequency acquisition module 162.
Time Calculation module 18 for, according to the time point of zero-crossing of alternating current and actuating of relay time delay, calculate the time point of pilot relay.Above-mentioned " time point of pilot relay " can refer to, such as, sends the time of the signal for driving the actuating of relay to relay, instead of the time of relay actual act.
Controller 19 for, according to the time point pilot relay action of described pilot relay.Controller 19 specifically for: controlled before the time point of zero-crossing of alternating current controlled load connect the actuating of relay, wherein the difference of the time of the time point of zero crossing and the time point of pilot relay is, the action time delay that the relay that controlled load connects is intrinsic, namely, the time point of zero-crossing of alternating current is deducted actuating of relay time delay by controller 19, as the time point of pilot relay.Such as, if action time delay of the relay 12 be connected with current controlled load is t millisecond, zero-crossing of alternating current time point is t0, then controller 19 is when (t0-t), sends the control signal controlling this relay 12 action, after relay is triggered, through the time delay of intrinsic t millisecond, just in time can locate in the t0 moment, namely the time point of zero-crossing of alternating current, disconnect according to this steering order or close.In this way, relay action when the instantaneous value of alternating current is minimum can be ensured.
In such scheme, by detecting the instantaneous value passing into the alternating current of the relay be connected with controlled load, and according to the frequency of instantaneous value time dependent relation determination alternating current detected, due to can according to the time point of ac frequency determination zero-crossing of alternating current, and according to the time point of zero-crossing of alternating current and actuating of relay time delay, calculate the time point of pilot relay, therefore when receiving the steering order for control load, can at suitable time point pilot relay, such as pilot relay action before zero crossing, make relay just action near zero point phase place, available protecting relay is not by heavy current impact, cost is also lower.Therefore; this programme can not only available protecting relay and intelligent switch; extend relay and intelligent switch life-span, and the time point of pilot relay action can be determined for the action that relay is intrinsic time delay flexibly, therefore can realize the self-adaptation to different relay.
Above-mentioned " action near zero point phase place " does not refer to, strictly in the place's action of phase place at zero point, but allows certain error, also can from the phase point place action close to zero point.
Further, frequency acquisition module 162 is according to the instantaneous value acquisition alternating current phases curve of alternating current, the frequency according to alternating current phases curve acquisition alternating current.The phase curve of alternating current can be good at reaction alternating current instantaneous value rule over time, is conducive to determining ac frequency fast.
Fig. 2 is the phase curve figure of the alternating current that the present invention obtains according to the instantaneous value of alternating current.That is, frequency acquisition module 162 according to the instantaneous value of the alternating current of pick-up unit 14 detection, can obtain phase curve as shown in Figure 2.In Fig. 2, horizontal axis representing time, the longitudinal axis represents curtage amplitude.As shown in Figure 2, the phase place at zero point of alternating current, refers to the point that the phase curve of alternating current and transverse axis are compared, as a, b, c, d point; Peak phase, refers to the crest place of the phase curve of alternating current, as e, f point, or the trough place of the phase curve of alternating current, as g, h point.
Above-mentioned pick-up unit 14 can comprise photoelectrical coupler, and such as EL(field causes) 817S paster, utilize photoelectrical coupler, can implement, detect exactly the instantaneous value of alternating current.
Alternatively, frequency acquisition module 162 when obtaining the frequency of alternating current, specifically for:
The equal first-phase site of two amplitudes is got in crest both sides of alternating current phases curve;
The equal second-phase site of two amplitudes is got in next crest both sides of alternating current phases curve;
Get the point of the very first time corresponding to center of described two first-phase site lines, and the second time point corresponding to line center, described two second-phase sites;
According to the time difference between described second time point and very first time point, calculate the frequency of described alternating current.
Next crest above-mentioned refers to, the arbitrary crest after the crest between two first-phase sites, that is, above-mentioned two crests can be adjacent, also can be non-conterminous, as long as can obtain the frequency of alternating current according to the mistiming between the second time point and very first time point.
Such as, frequency acquisition module 162 can get phase point i on the upcurve of a crest of alternating current phases curve (as e point) side, the decline curve of this crest opposite side is got phase point j, and the amplitude at phase point i and j place is equal, and the line center of phase point i and the j corresponding t3 moment.
And, frequency acquisition module 162 also gets phase point k on the upcurve of next crest (as f point) side, the decline curve of this next crest opposite side is got phase point l, and the amplitude at phase point k and l place is equal, and the line center of phase point k and the l corresponding t9 moment.
Then, frequency acquisition module 162 gets the time interval in t9 moment and t3 moment, and this time interval can represent cycle of alternating current, asks the inverse in the cycle of alternating current, can calculate the frequency of alternating current.
By getting two equal phase values of amplitude respectively in crest both sides, and get this time point corresponding to two phase value line centers, make use of the symmetry of phase curve, frequency values more accurately can be obtained, reduce and get separately zero point of phase curve or peak value to calculate the error of ac frequency.
According to the ac frequency obtained, alternating current when zero crossing can be determined, such as, after determining the frequency of alternating current, can determine that alternating current will at t11 moment zero crossing, if action time delay of relay is (t11-t10) millisecond, then controller 19 is in the action of t10 moment pilot relay, namely transmit control signal to relay, relay, under the triggering of this control signal, disconnects after time delay (t11-t10) millisecond or closes.
Embodiment two
The block diagram of a kind of intelligent control network that Fig. 3 provides for the embodiment of the present invention two.As shown in Figure 3, this intelligent control network comprises above-mentioned intelligent switch, and this intelligent switch is connected with load.
The intelligent control network of the present embodiment can comprise multiple intelligent switch, and by controller 19 sending controling instruction of long-range mode to other intelligent switch between each intelligent switch, and each intelligent switch can comprise multiple relay, the plurality of relay is connected to different loads, when needing the state of certain load controlling one of them intelligent switch to change, controller 19 can obtain steering order under the triggering of corresponding local keys of key, or from the corresponding steering order of the long-range reception of other intelligent switch, and control corresponding relay 12, make action near phase place at its zero point at alternating current.
The principle of work of the intelligent switch that the principle of work of each intelligent switch is a kind of with embodiment is identical, is not repeating.
The intelligent control network that the present embodiment provides, intelligent switch wherein passes into the instantaneous value of the alternating current of the relay be connected with controlled load by detecting, and according to the frequency of instantaneous value time dependent relation determination alternating current detected, due to can according to the time point of ac frequency determination zero-crossing of alternating current, and according to the time point of zero-crossing of alternating current and actuating of relay time delay, calculate the time point of pilot relay, therefore when receiving the steering order for control load, can at suitable time point pilot relay, such as pilot relay action before zero crossing, make relay just action near zero point phase place, available protecting relay is not by heavy current impact, cost is also lower.Therefore; this programme can not only available protecting relay and intelligent switch; extend relay and intelligent switch life-span, and the time point of pilot relay action can be determined for the action that relay is intrinsic time delay flexibly, therefore can realize the self-adaptation to different relay.
Embodiment three
The process flow diagram of the control method of a kind of intelligent switch that Fig. 4 provides for the embodiment of the present invention three.As shown in Figure 4, the method comprises the following steps S41, S43, S45, S47.
Step S41: the steering order obtaining controlled load;
Step S43: the instantaneous value detecting the alternating current passing into the relay that controlled load connects;
Step S45: according to described instantaneous value over time relation determine the frequency of described alternating current, and by the time point of this frequency acquisition zero-crossing of alternating current;
Step S47: according to the time point of zero-crossing of alternating current and actuating of relay time delay, determine the time point of pilot relay action; ;
Step S49: according to the time point of described pilot relay action, pilot relay action.
Such scheme available protecting relay is not by while heavy current impact, prolongation relay life, and cost is also lower, can adapt to different relays.
In step S45, and " according to described instantaneous value over time relation determine the frequency of described alternating current " specifically comprise: obtain alternating current phases curve according to the instantaneous value of described alternating current, and according to the frequency of described alternating current phases curve acquisition alternating current.Such as can obtain alternating current phases curve as shown in Figure 2, to represent alternating current instantaneous value relation over time according to the instantaneous value of alternating current.
Further, " frequency according to alternating current phases curve acquisition alternating current " specifically comprises:
The equal first-phase site of two amplitudes is got, as phase point i, j in crest both sides of alternating current phases curve;
The equal second-phase site of two amplitudes is got, as phase point k, l in next crest both sides of alternating current phases curve;
Get the point of the very first time corresponding to center of described two first-phase site lines, as t3, and the second time point corresponding to line center, described two second-phase sites, as t9;
According to the time difference between described second time point and very first time point, calculate the frequency of described alternating current, as the mistiming between t9 and t3 represents the cycle of alternating current, by getting the frequency that inverse can obtain alternating current to the cycle.
By getting two equal phase values of amplitude respectively in crest both sides, and get this time point corresponding to two phase value line centers, make use of the symmetry of phase curve, frequency values more accurately can be obtained, reduce and get separately zero point of phase curve or peak value and calculate the error that ac frequency brings.
Alternatively, in step S47, " determining the time point of pilot relay action " specifically comprises: the time point of zero-crossing of alternating current is deducted actuating of relay time delay, as the time point of pilot relay action.
Alternatively, in step S41, obtain the steering order of controlled load " specifically comprise: under the triggering being located at the button on intelligent switch, obtain the steering order of controlled load.Alternatively, in step S41, obtain the steering order of controlled load " specifically comprise: the steering order that other intelligent switch of long-range reception sends.
State in each embodiment on the invention, the sequence number of embodiment and/or sequencing are only convenient to describe, and do not represent the quality of embodiment.The description of each embodiment is all emphasized particularly on different fields, in certain embodiment, there is no the part described in detail, can see the associated description of other embodiment.
One of ordinary skill in the art will appreciate that: all or part of step realizing said method embodiment can have been come by the hardware that programmed instruction is relevant, aforesaid program can be stored in a computer read/write memory medium, this program, when performing, performs the step comprising said method embodiment; And aforesaid storage medium comprises: ROM (read-only memory) (Read-Only Memory, be called for short ROM), random access memory (Random Access Memory is called for short RAM), magnetic disc or CD etc. various can be program code stored medium.
In the embodiments such as apparatus and method of the present invention, obviously, each parts or each step reconfigure after can decomposing, combine and/or decomposing.These decompose and/or reconfigure and should be considered as equivalents of the present invention.Simultaneously, above in the description of the specific embodiment of the invention, the feature described for a kind of embodiment and/or illustrate can use in one or more other embodiment in same or similar mode, combined with the feature in other embodiment, or substitute the feature in other embodiment.
Should emphasize, term " comprises/comprises " existence referring to feature, key element, step or assembly when using herein, but does not get rid of the existence or additional of one or more further feature, key element, step or assembly.
Although last it is noted that described the present invention and advantage thereof in detail above, be to be understood that and can carry out various change when not exceeding the spirit and scope of the present invention limited by appended claim, substituting and converting.And scope of the present invention is not limited only to the specific embodiment of process, equipment, means, method and step described by instructions.One of ordinary skilled in the art will readily appreciate that from disclosure of the present invention, can use perform the function substantially identical with corresponding embodiment described herein or obtain and its substantially identical result, existing and that will be developed in the future process, equipment, means, method or step according to the present invention.Therefore, appended claim is intended to comprise such process, equipment, means, method or step in their scope.
Claims (8)
1. an intelligent switch, is characterized in that, comprising:
At least one relay, for connecting load;
Pick-up unit, for detecting the instantaneous value of the alternating current passing into the relay that controlled load connects;
Acquisition module, comprise for according to described instantaneous value over time relation determine the frequency acquisition module of the frequency of described alternating current, and for the time-obtaining module by the time point of this frequency acquisition zero-crossing of alternating current;
Time Calculation module, for according to the time point of zero-crossing of alternating current and actuating of relay time delay, calculates the time point of pilot relay action;
Controller, for the time point pilot relay action according to described pilot relay.
2. intelligent switch according to claim 1, is characterized in that, described frequency acquisition module also for obtaining alternating current phases curve according to the instantaneous value of described alternating current, and according to the frequency of described alternating current phases curve acquisition alternating current.
3. intelligent switch according to claim 1, is characterized in that, described pick-up unit comprises photoelectrical coupler.
4. an intelligent control network, comprises the intelligent switch described in any one of claim 1-3.
5. a control method for intelligent switch, is characterized in that, comprising:
Obtain the steering order of controlled load;
Detect the instantaneous value of the alternating current passing into the relay that controlled load connects;
According to described instantaneous value over time relation determine the frequency of described alternating current, and by the time point of this frequency acquisition zero-crossing of alternating current;
According to the time point of zero-crossing of alternating current and actuating of relay time delay, determine the time point of pilot relay action;
According to the time point of described pilot relay action, pilot relay action.
6. the control method of intelligent switch according to claim 5, is characterized in that, and " according to described instantaneous value over time relation determine the frequency of described alternating current " specifically comprise:
Alternating current phases curve is obtained according to the instantaneous value of described alternating current, and according to the frequency of described alternating current phases curve acquisition alternating current.
7. the control method of intelligent switch according to claim 6, is characterized in that, " frequency according to described alternating current phases curve acquisition alternating current " specifically comprises:
The equal first-phase site of two amplitudes is got in crest both sides of alternating current phases curve;
The equal second-phase site of two amplitudes is got in next crest both sides of alternating current phases curve;
Get the point of the very first time corresponding to center of described two first-phase site lines, and the second time point corresponding to line center, described two second-phase sites;
According to the time difference between described second time point and very first time point, calculate the frequency of described alternating current.
8. the control method of intelligent switch according to claim 5, it is characterized in that, described " determining the time point of pilot relay action " specifically comprises: the time point of zero-crossing of alternating current is deducted actuating of relay time delay, as the time point of pilot relay action.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310274443.5A CN104299480B (en) | 2013-07-02 | 2013-07-02 | Intelligent switch and control method, intelligent control network |
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| CN201310274443.5A CN104299480B (en) | 2013-07-02 | 2013-07-02 | Intelligent switch and control method, intelligent control network |
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| CN104299480B CN104299480B (en) | 2016-08-24 |
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| CN105242728A (en) * | 2015-10-28 | 2016-01-13 | 小米科技有限责任公司 | Method and device controlling power on/off of intelligent socket, and the intelligent socket |
| CN108363318A (en) * | 2018-02-11 | 2018-08-03 | 四川虹美智能科技有限公司 | A kind of method, system and a kind of control chip of the switching of control on off state |
| CN108766835A (en) * | 2018-06-05 | 2018-11-06 | 深圳绿米联创科技有限公司 | Intelligent switch and its control method |
| CN108896813A (en) * | 2018-06-29 | 2018-11-27 | 广东美的环境电器制造有限公司 | A kind of detection method of zero cross signal, system, device and computer storage medium |
| CN112864731A (en) * | 2021-01-13 | 2021-05-28 | 宁波公牛数码科技有限公司 | Smart jack and control method for smart jack |
| CN113203890A (en) * | 2021-05-10 | 2021-08-03 | 深圳市海和科技股份有限公司 | Load control method, device and storage medium |
| CN115527804A (en) * | 2022-10-19 | 2022-12-27 | 聆思半导体技术(苏州)有限公司 | Intelligent switch delay control time self-adjusting method, chip and circuit |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105242728A (en) * | 2015-10-28 | 2016-01-13 | 小米科技有限责任公司 | Method and device controlling power on/off of intelligent socket, and the intelligent socket |
| CN108363318A (en) * | 2018-02-11 | 2018-08-03 | 四川虹美智能科技有限公司 | A kind of method, system and a kind of control chip of the switching of control on off state |
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| CN113203890B (en) * | 2021-05-10 | 2022-08-30 | 深圳市海和科技股份有限公司 | Load control method, device and storage medium |
| CN115527804A (en) * | 2022-10-19 | 2022-12-27 | 聆思半导体技术(苏州)有限公司 | Intelligent switch delay control time self-adjusting method, chip and circuit |
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| CN104299480B (en) | 2016-08-24 |
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