CN107132870A - The device and operation method of intelligent power saving - Google Patents
The device and operation method of intelligent power saving Download PDFInfo
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- CN107132870A CN107132870A CN201710352842.7A CN201710352842A CN107132870A CN 107132870 A CN107132870 A CN 107132870A CN 201710352842 A CN201710352842 A CN 201710352842A CN 107132870 A CN107132870 A CN 107132870A
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
- G05F1/00—Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
- G05F1/10—Regulating voltage or current
- G05F1/46—Regulating voltage or current wherein the variable actually regulated by the final control device is dc
- G05F1/56—Regulating voltage or current wherein the variable actually regulated by the final control device is dc using semiconductor devices in series with the load as final control devices
- G05F1/561—Voltage to current converters
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Abstract
The present invention proposes a kind of device of intelligent power saving, and it includes current sampling unit, pwm signal generation unit, switch element and control unit；Current sampling unit is used to carry out current sample to the supply line of load supplying, and sampling is obtained into current signal is converted to voltage signal；Pwm signal generation unit is used to voltage signal generating pwm signal；Control unit is used for the dutycycle for calculating the cycle of several in pwm signal, and the dutycycle is compared to judge whether load is standby with the dutycycle reference point as standby reference；Switch element is used to cut off or connect supply line according to the instruction of control unit, the present invention have the advantages that it is simple in construction, standby judge it is reasonable, available for realizing that intellectual determination, cost are low, a kind of operation method for being used to run the device of the intelligent power saving is also proposed in addition, can be while the running of the device of intelligent power saving be simple, operation logic is more reasonable, and performance is more preferable.
Description
Technical field
It is especially a kind of device of intelligent power saving the present invention relates to the intelligent apparatus technical field such as smart jack, switch
And operation method.
Background technology
The device of the intelligent power savings such as smart jack, switch is accessed after load, such as smart jack grafting air-conditioning, and air-conditioning is exactly
Load, because air-conditioning has standby and work two states, when air-conditioning is in it is standby when, if power supply and air-conditioning are disconnected, that is with regard to energy
It is enough to realize energy-conservation purpose, so provide a kind of device of intelligent power saving, when load in it is standby when, without artificial operation, with regard to energy
It is enough timely automated to cut off the electricity supply, not only facilitate user simultaneously, and a large amount of electric energy will be saved.
Prior art has had to the device of the intelligent power savings such as smart jack, switch to be studied for many years, and machine-cut is treated in having for having
The function in power-off source, the relatively advanced such as device based on power detection, that is, detect the power currently powered, when power is less than
During certain value, judge that load, in standby, main power source is cut off after a period of time that is then delayed, so that automation is realized, but should
Class device is complex, cost is higher, and the application is intended on the technique direction do more in-depth study, by separately warding off footpath
Footpath, is desirably to obtain a kind of device of intelligent power saving, with it is simple in construction, it is standby judge rationally, available for realize intellectual determination,
The low advantage of cost.
The content of the invention
The technical problems to be solved by the invention be the defect for overcoming prior art there is provided a kind of device of intelligent power saving,
The device of the intelligent power saving have the advantages that it is simple in construction, standby judge rationally, available for realizing that intellectual determination, cost are low,
The present invention also provide it is a kind of be used for run the intelligent power saving device operation method, can the device of intelligent power saving operation
While process is simple, operation logic is more reasonable, and performance is more preferable.
In order to solve the above technical problems, the present invention proposes a kind of device of intelligent power saving, it include current sampling unit,
Pwm signal generation unit, switch element and control unit；
Current sampling unit is used to carry out current sample to the supply line of load supplying, and sampling is obtained into current signal
Be converted to voltage signal；
Pwm signal generation unit is used to voltage signal generating pwm signal；
Control unit is used for the dutycycle for calculating the cycle of several in pwm signal, and using the dutycycle and is used as standby ginseng
According to dutycycle reference point compare with judge load whether be standby；
Switch element is used to cut off or connect supply line according to the instruction of control unit.
After such scheme, compared with prior art, the present invention has advantages below：Sentence with simple in construction, standby
The disconnected reasonable, advantage low available for intellectual determination, cost is realized, specifically, first, current sampling unit only believes electric current
Voltage signal number is converted to, circuit structure is simple, and the voltage signal is converted into pwm signal in conjunction with pwm signal generation unit,
Such as implementation can use the circuit around comparator design, relatively simple, and control unit is according to according to pwm signal
In the situation of waveform in each cycle calculate dutycycle, and dutycycle compared with the dutycycle reference point as standby reference with
Judge load whether be it is standby, one it is standby judge reasonable, two, the calculating energy of calculating process and deterministic process to control unit
Power and data storage capacities require low, and control unit operand is small, therefore control unit can use the single-chip microcomputer of low cost, and
Current sampling unit, pwm signal generation unit cost it is relatively low, so, holistic cost is relatively low, three, dutycycle is with confession
The real-time change of electric current in electric line and change, by dynamic and the electricity consumption situation of load is objectively responded, therefore, with electricity consumption
The change of situation, judges also in change, is so achieved that intellectual determination；Then in conjunction with switch element, when being supported on standby,
Cut-out supply line in time, so as to realize energy-conservation purpose, summary, the application have it is simple in construction, standby judge rationally, can
The advantage low for realizing intellectual determination, cost.
As an improvement, it also includes trigger element, the trigger element obtains following calculating for starting control unit
Dutycycle be set as dutycycle reference point, so, by setting trigger element, it is possible to achieve manually booting control unit will connect
Get off to calculate obtained dutycycle and be set as dutycycle reference point, therefore, adjusted according to the standby actual conditions of different loads
Dutycycle reference point, so that the application operation is more reliable, stably, it is standby to judge more reasonable, pacify while being also convenient for debugging
Dress personnel carry out adjustment and installation, and more preferable usage experience is brought to later stage user；Above-mentioned setting causes the application to have study
Ability, structure is relatively simple.
As an improvement, it also includes detection of electrical leakage unit, the test side of the detection of electrical leakage unit is located at supply line to examine
Leaked hunting electricity, and the output end of the detection of electrical leakage unit is electrically connected with control unit, and control unit is sent according to detection of electrical leakage unit
Electric leakage signal come controlling switch unit cut-out supply line, so, make the application that there are earth leakage detection functions.
As an improvement, it also includes leakage testses unit, one end of leakage testses unit and the L ends of supply line are electrically connected
Connect, the other end of leakage testses unit is electrically connected with the N-terminal of supply line；The portion of the supply line of leakage testses unit institute short circuit
Set up the switch sections for putting switch element separately so that when switch sections close a floodgate, leakage testses unit can work, so, survey
Try structure relatively simple, by test, confirm to put into normally use again after detection of electrical leakage cell operation is normal, using more pacifying
Entirely.
As an improvement, it also includes economize on electricity test cell, the economize on electricity test cell connects down for starting control unit calculating
Whether a series of dutycycles come in the short period judge load in standby, so as to shorten the stand-by period, so, are installing
During debugging, standby automatic circuit break function can be tested as early as possible, and the efficiency of staff is greatly improved, and above-mentioned setting can also be used
In experience of the user to standby automatic circuit break function, product function displaying is preferably served.
The present invention also provides a kind of operation method, and current sampling, the current sampling are carried out to the supply line of load supplying
Be converted to voltage signal and form a pwm signal after handling, control unit receives the pwm signal, and control unit determines pwm signal
Cycle, for the waveform in each cycle in pwm signal, the time that the waveform portion produced higher than setting value is maintained accounts for the cycle
Ratio be designated as the first detected value, or account for the ratio in cycle less than the time that the waveform portion that setting value is produced is maintained and be designated as
Second detected value, when the first detected value is less than or equal to set the first reference value as standby reference, control unit
Load is judged for standby, or, when the second detected value is more than or equal to set the second reference value as standby reference,
Control unit judges load to be standby；When judging load to be standby, control unit controlling switch unit cut-out supply line.
The generating process of pwm signal is that current sampling is converted to voltage signal, and the voltage signal is compared with reference voltage,
Reference voltage is described setting value, if more than reference voltage, exporting the first signal, if less than reference voltage, exporting the
Binary signal；
Control unit determines that the process in the cycle of pwm signal is, for each cycle t, control unit with receive
As cycle t start time t1 at the time of residing for one the first signal or secondary signal, accordingly, if with first first letter
As cycle t start time t1 at the time of residing for number, then after the first signal interruption, the first signal is residing when occurring again
Moment as cycle t end of time t3, if at the time of using residing for first secondary signal as cycle t start time t1,
Then after secondary signal is interrupted, cycle t end of time t3 is used as at the time of residing when secondary signal occurs again；
The calculating process of first detected value or the second detected value is, according to the first signal, then when control unit is received
During the first signal continuously occurred, then the continuous appearance the maintained time is designated as t2, and by formula A=t2/t, t=
(t3-t1), calculated to obtain the first detected value A；Or, according to secondary signal, then when control unit is received continuously
During the secondary signal of appearance, then the continuous appearance the maintained time is designated as t4, and by formula B=t4/t, t=(t3-
T1), calculated to obtain the second detected value B；Or, calculated by B=1-A and obtain B；Or, calculated by A=1-B and obtain A；
Standby deterministic process is, the A obtained under load ideal case is designated as the first reference value A 1, for it is continuous several
Cycle t, is respectively less than or during equal to A1 when each cycle t calculates obtained A, then judges that load, in standby, is otherwise redefined
T start cycle in continuous several cycles t, and whether rejudged in standby；
Or, the B obtained under load ideal case is designated as the second reference value B1, for continuous several cycles t, when every
Individual cycle t calculates obtained B and is all higher than or during equal to B1, then judges that load, in standby, is otherwise redefined continuous some
Individual cycle t t start cycle, and whether rejudged in standby.
After such scheme, compared with prior art, the present invention has advantages below：Place of this method to PWM signals
Reason process is relatively simple so that without complicated computing, the data that computing is used are few, therefore operand is small, although this method is transported
Row process is simple, but this method becomes pwm signal with the real-time change of the electric current in the supply line to load supplying
Change is considered that the thinking of this method operation is to embody dynamic and objectively respond the electricity consumption situation of load, therefore, with
The change of electric situation, judges also in change, is so achieved that intellectual determination, operation logic is more reasonable, and performance is more preferable；It is comprehensive
Close and state, the present invention has can be while the running of the device of intelligent power saving be simple, and operation logic is more reasonable, property
Can more preferable advantage.
As an improvement, t start cycle redefine for, once occur A be less than or equal to A1 cycle t, or, once
There is the cycle t that B is more than or equal to B1, then cycle t so, is more conducive to judge whether to be in time i.e. as t start cycle
It is standby, improve judging efficiency.
As an improvement, the A obtained in the case of loaded work piece is designated as A2, A1+B obtains C, and C is less than A2, and the C is used as the first ginseng
Examine value, or, the B obtained in the case of loaded work piece is designated as B2, and B1-D obtains E, and E is less than B2, the E as the second reference value, this
Sample, A1+B is that increase A1, B1-D are to reduce B1, and the setting purpose is to strengthen the adaptability of the application, so as to tackle use
The influence of the fluctuation of electrical environment, specifically using great B or D, can be determined, certainly according to the degree of fluctuation of actual power utilization environment
A value subjective can be set, such as B or D are 0.02.
As an improvement, initial A1 or B1 is set by predetermined manner, to redefine A1 or B1 and then be opened by trigger element
It is dynamic, so, under default situations, judged by default A1 or B1 as reference value, and redefine A1 or B1, then can be
Setting person determine load be in ideal case under operates trigger element, realized by trigger element startup redefine A1 or
B1, above-mentioned setting can avoid A1 or B1 confusion, it is ensured that adaptability of the present invention in each use environment, to user with
Carry out more preferable usage experience.
Brief description of the drawings
Fig. 1 is the frame principle figure of the application.
Fig. 2 is the circuit theory diagrams of current sampling unit.
Fig. 3 is the circuit theory diagrams of pwm signal generation unit.
Fig. 4 is the circuit theory diagrams of trigger element.
Fig. 5 is to include detection of electrical leakage unit, leakage testses unit, the circuit theory diagrams of switch element.
Fig. 6 is the circuit theory diagrams of economize on electricity test cell.
Fig. 7 is the circuit theory diagrams of infrared remote control unit.
Embodiment
The present invention is further detailed explanation below：
A kind of device of intelligent power saving, is illustrated by taking 220V, 50Hz that China uses civil power as an example,
It includes current sampling unit, pwm signal generation unit and control unit.
Current sampling unit is used to carry out current sample to the supply line of load supplying, and sampling is obtained into current signal
Be converted to voltage signal.
Pwm signal generation unit is used to voltage signal generating pwm signal.
Control unit is used for the dutycycle for calculating the cycle of several in pwm signal, and using the dutycycle and is used as standby ginseng
According to dutycycle reference point compare with judge load whether be standby.
Switch element is used to cut off or connect supply line according to the instruction of control unit.
The cycle of several in pwm signal can be each cycle in pwm signal, or in pwm signal at equal intervals or
In multiple cycles in multiple cycles that unequal interval occurs, or selection pwm signal etc., certainly, using each cycle, it will treat
The judgement of machine is more accurate.
The detailed process of the dutycycle in several cycles is in calculating pwm signal：For the ripple in each cycle in pwm signal
Shape, the time that the waveform portion produced higher than setting value is maintained accounts for the ratio in cycle and is designated as the first detected value, the first detected value
That is dutycycle, the time that the waveform portion produced less than setting value is maintained accounts for the ratio in cycle and is designated as the second detected value, and this
Two detected values are it can be appreciated that dutycycle.
Whether the dutycycle is compared with the dutycycle reference point as standby reference to judge to load is standby specific
Process is：When the first detected value is less than or equal to set the first reference value as dutycycle reference point, control unit
Load is judged to be standby, or, when the second detected value is more than or equal to set the second reference as dutycycle reference point
During value, control unit judges load to be standby.
Current sampling unit includes the circuit designed according to current divider method, and pwm signal generation unit includes comparator, electric current
Sampling unit is to pwm signal generation unit output voltage signal, and the voltage signal is used for the reference electricity with pwm signal generation unit
Pressure ratio is compared with pwm signal generation unit is used to export the first signal or secondary signal to control unit according to comparative result, i.e., to control
Unit output pwm signal processed.
Current sampling unit includes constantan RB1, first resistor RB2, the first electric capacity C1B, and constantan RB1 is serially connected in supply line
In, the curent change of load is converted into voltage signal, first resistor RB2, the first electric capacity C1B formation RC filtering knots by constantan RB1
Voltage signal is handled backward pwm signal generation unit and exported by structure, the RC filter structures.
Pwm signal generation unit includes second resistance R31, the 4th resistance R32, the 5th resistance R33 and comparator U5A, the
The common port of two resistance R31 and the 4th resistance R32 series connection is electrically connected with comparator U5A first input end, second resistance R31's
The other end is grounded, and the 4th resistance R32 another termination 3V dc sources, comparator U5A also powers by 3V dc sources, by the
Two resistance R31 and the 4th resistance R32 setting obtains the voltage of first input end, and the voltage is as the reference voltage, i.e., described
Setting value, the output end V1P and comparator U5A of the output voltage signal of current sampling unit the second input electrically connects,
Comparator U5A output end and the 5th resistance R33 one end are electrically connected to form a common port GL, common port GL and control unit
Electrical connection, the 5th resistance R33 another termination 3V dc sources, described voltage signal is in change, the voltage signal and reference
Voltage ratio relatively after can export the first signal or secondary signal to control unit, if voltage signal is more than reference voltage, export
First signal, if voltage signal is less than reference voltage, exports secondary signal, thus forms pwm signal；In this example, if electric
Press signal to be more than reference voltage, then export low level, as digital signaling zero, i.e. the first signal, if voltage signal is less than with reference to electricity
Pressure, then export high level, be used as data signal 1, i.e. secondary signal, then continuous 0 time maintained as t2, continuously
1 time maintained as t4, certainly, cycle t also can determine by the first signal or secondary signal.
Control unit can be using the circuit built around single-chip microcomputer, and with functions such as calculating, storage, judgements, realization is accounted for
The calculating of empty ratio, and dutycycle is compared to judge whether load is standby with the dutycycle reference point set.
Switch element includes controllable silicon T2, T3, relay L1, L2 and the commutator S3 controlled by relay L1, L2,
The monolithic mechatronics of controllable silicon T2, T3 control end Relay On and Relay Off respectively with control unit, are loaded standby
When, single-chip microcomputer exports high level by control end Relay Off to controllable silicon T2, and the related relay L1 of controllable silicon T2 controls inhales
Close, relay L1 adhesives drive commutator S3 cut-outs supply line, extinguish as the light emitting diode V1 of indicator lamp, conversely,
Single-chip microcomputer exports high level by control end Relay On to controllable silicon T3, and controllable silicon T3 controls related relay L2 adhesives, after
Electrical equipment L2 adhesives drive commutator S3 to connect supply line, are lighted as the light emitting diode V1 of indicator lamp, and this is switch
Unit cuts off or connected supply line according to the instruction of control unit.
Trigger element is on-off circuit, and the on-off circuit includes switch S4, the 6th resistance R28, and the switch terminations of S4 mono- 3V is straight
Power supply is flowed, the switch S4 other ends connect to form a common port TEST with the 6th resistance R28, common port TEST and control unit
Electrical connection to control unit to export trigger signal, and the 6th resistance R28 other ends are grounded, and the on-off circuit is relatively simple, action
Reliably, cost is low；It is high level to press switch S4, common port TEST, and the high level is trigger signal.
Detection of electrical leakage unit is designed mainly around chip U2, and test side is Current Transmit 1, and the principle utilized is to pass through
Current Transmit 1 detects the imbalance of supply line's L, N electric current to judge whether electric leakage, and one threshold value of setting is compared
Relatively judge whether electric leakage, so as to reach protecting effect, control unit receives the electric leakage that chip U2 output end LDJC is sent
Trigger signal, then controls controllable silicon T2, T3 conducting, so as to carry out control relay L1, L2 by the I/O port of control unit
Adhesive, relay L1, L2 adhesive control commutator S3 cut-out supply lines or connection supply line.
Leakage testses unit includes switch S1, current-limiting resistance R14, and switch S1 one end and current-limiting resistance R14 one end are electrically connected
Connect, the switch S1 other ends are electrically connected with the N of supply line, and the current-limiting resistance R14 other end is electrically connected with the L of supply line, are led to
Cross press switch S1 come short circuit supply line, so as to reach the leakage testses purpose to detection of electrical leakage unit.
Economize on electricity test cell is on-off circuit, and the on-off circuit includes switch S5, the 7th resistance R29, and switch S5 mono- is terminated
3V dc sources, the switch S5 other ends connect to form a common port TEST2 with the 7th resistance R29, common port TEST2 and control
Unit electrical connection processed to control unit to export trigger signal, and the 7th resistance R29 other ends ground connection presses switch S5, common port
TEST2 is high level, and the high level is trigger signal.
This example also includes infrared remote control unit, and the infrared remote control unit is received after remote signal to control unit output control
Signal, control unit is cut off come controlling switch unit according to the control signal or connects supply line, so, by remote control come remote
Process control switch element is cut off or connection supply line, i.e. remote control break-make, can also be after standby automatically power off, it is necessary to weight
It is new to connect supply line in use, being remotely controlled.
Infrared remote control unit includes infrared receiver end B1, resistance R30, electric capacity C69, resistance R47, resistance R21 and resistance
R22, infrared receiver end B1 the first pin is electrically connected to form common port HW IN with resistance R47 one end, and resistance R47's is another
3V dc sources are terminated, infrared receiver end B1 second pin is grounded after being electrically connected with electric capacity C69 one end, infrared receiver end
B1 the 3rd pin is electrically connected with resistance R30 one end, and the resistance R30 other end is electrically connected with the electric capacity C69 other end to be followed by
3V dc sources, common port HW IN are electrically connected with resistance R21 one end and resistance R22 one end respectively, and resistance R21's is another
The control signal for exporting and receiving to single-chip microcomputer as signal output part PWM IP1 is held, the resistance R22 other end is defeated as signal
Go out to hold PWM IP2 to export the control signal received to single-chip microcomputer, so as to realize infrared receiver scheme, remote control can be using electricity
The remote control carried depending on machine, air-conditioning etc., it is only necessary to which the single-chip microcomputer that the application is used has the single-chip microcomputer of infrared remote control learning functionality
.
In this example, run using a kind of operation method proposed by the present invention, i.e.,：
The first described detected value or the specific calculating process of the second detected value are：According to the first signal, then work as control
When unit receives the first signal continuously occurred, then the continuous appearance the maintained time is designated as t2, and by formula A=
T2/t, t=(t3-t1), are calculated to obtain the first detected value A；Or, according to secondary signal, then when control unit connects
When receiving the secondary signal continuously occurred, then the continuous appearance the maintained time is designated as t4, and by formula B=t4/t, t=
(t3-t1), calculated to obtain the second detected value B；Or, calculated by B=1-A and obtain B；Or, calculated by A=1-B
To A；Wherein, t represents the described cycle, and for each cycle t, control unit is with first the first signal received or second
As cycle t start time t1 at the time of residing for signal, accordingly, if being used as week at the time of using residing for first the first signal
Phase t start time t1, then after the first signal interruption, be used as cycle t end at the time of the first signal is residing when occurring again
Point moment t3, if at the time of using residing for first secondary signal as cycle t start time t1, when secondary signal is interrupted
Afterwards, cycle t end of time t3 is used as at the time of residing when secondary signal occurs again；
When the first detected value is less than or equal to set the first reference value as dutycycle reference point, control unit
Load is judged to be standby, or, when the second detected value is more than or equal to set the second reference as dutycycle reference point
During value, control unit judges that load, to be standby, refers to：For continuous several cycles t, when each cycle t calculates obtained A
During respectively less than or equal to A1, then judge that load, in standby, otherwise redefines t start cycle in continuous several cycles t,
And whether rejudged in standby；Or, for continuous several cycles t, when each cycle t calculates obtained B
It is all higher than or during equal to B1, then judges that load, in standby, otherwise redefines t start cycle in continuous several cycles t,
And whether rejudged in standby.
The accumulation interval that we can define several cycles t is 15 minutes, then during 15 minutes, as each cycle t
Calculate obtained A to be respectively less than or during equal to A1, then control unit judges that load is in holding state, while controlling switch unit is cut
Cut-off electric line, therefore, under normal condition, standby automatic circuit break function at least needs can just embody for 15 minutes, is economized on electricity when using
Substantially it is to shorten accumulation interval, such as 30 seconds, then it is small that each cycle t in 30 seconds calculates obtained A after test cell
When A1, then control unit judges that load is in holding state, while controlling switch unit cuts off supply line, that is, opens
Dynamic control unit calculates a series of dutycycles in the following short period whether to judge load in standby, so as to shorten
Treat the time, so, significantly reduce the stand-by period, this setting very hommization is easily installed commissioning staff, also allow for displaying
Product function, improves efficiency.
Start cycle t redefine for, once occur A be less than or equal to A1 cycle t, or, be more than once there is B
Or the cycle t equal to B1, then cycle t is, as t start cycle, so, to be more conducive to judge whether in time in standby, improve
Judging efficiency.
The A obtained in the case of loaded work piece is designated as A2, and A1+B obtains C, and C is less than A2, the C as the first reference value, or,
The B obtained in the case of loaded work piece is designated as B2, and B1-D obtains E, and E is less than B2, and the E is as the second reference value, and so, A1+B is
Increase A1, B1-D is to reduce B1, and the setting purpose is to strengthen the adaptability of the application, so as to tackle the ripple of power utilization environment
Dynamic influence, specifically using great B or D, can be determined, naturally it is also possible to which subjectivity is set according to the degree of fluctuation of actual power utilization environment
A fixed value, such as B or D are 0.02.
Initial A1 or B1 is set by predetermined manner, to be redefined A1 or B1 and then be started by trigger element, so, is write from memory
In the case of recognizing, judged by default A1 or B1 as reference value, and redefine A1 or B1, then can be true in setting person
Fixed load is in the switch S4 of operation switching circuit under ideal case, is started by switching S4 and to realize redefines A1 or B1,
Above-mentioned setting can avoid A1 or B1 confusion, it is ensured that adaptability of the present invention in each use environment, be brought to user
More preferable usage experience.
Realize that redefining A1 or B1 refers to by switching S4 startups, such as A1, after Operation switch S4, control unit
Obtained A is calculated using within next a period of time as corresponding A1, such as next a period of time can include for 20 week
Phase t, the value that 20 A that 20 cycle t calculating are obtained averagely once are determined is used as A1；Such as B1, as Operation switch S4
Afterwards, control unit calculates obtained B using within next a period of time as corresponding B1, such as next a period of time can wrap
Ten cycle t are included, the value that ten B that ten cycle t calculating are obtained averagely once are determined is used as B1.
A and B can be described as the two sides of power supply, i.e., in a cycle t, except A is exactly B, then preferable in power supply quality
In the environment of, that is, fluctuate it is small, if A, it is known that if B=1-A, similarly, if B, it is known that if A=1-B；Supply line is to refer to, rather than
It is confined to the electric wire of access load, all positions for being adapted to current sampling on feeder circuit.
Described above is only the better embodiment of the present invention, therefore all constructions according to described in present patent application scope,
The equivalent change or modification that feature and principle are done, is included in the range of present patent application.
Claims (10)
1. a kind of device of intelligent power saving, it is characterised in that it is single that it includes current sampling unit, pwm signal generation unit, switch
Member and control unit；
Current sampling unit is used to carry out the supply line of load supplying current sample, and sampling is obtained into current signal conversion
For voltage signal；
Pwm signal generation unit is used to voltage signal generating pwm signal；
Control unit is used for the dutycycle for calculating the cycle of several in pwm signal, and using the dutycycle and is used as standby reference
Dutycycle reference point compares to judge whether load is standby；
Switch element is used to cut off or connect supply line according to the instruction of control unit.
2. the device of intelligent power saving according to claim 1, it is characterised in that it also includes trigger element, the triggering list
Next member is used to starting control unit will calculate obtained dutycycle and is set as dutycycle reference point.
3. the device of intelligent power saving according to claim 1, it is characterised in that it also includes detection of electrical leakage unit, the leakage
The test side of electro-detection unit is located at supply line to detect electric leakage, and output end and the control unit of the detection of electrical leakage unit are electrically connected
Connect, the electric leakage signal that control unit is sent according to detection of electrical leakage unit cuts off supply line come controlling switch unit.
4. the device of intelligent power saving according to claim 3, it is characterised in that it also includes leakage testses unit, electric leakage
One end of test cell is electrically connected with the L ends of supply line, and the other end of leakage testses unit and the N-terminal of supply line are electrically connected
Connect；The part of the supply line of leakage testses unit institute short circuit sets the switch sections of switch element so that when switch sections close a floodgate
When, leakage testses unit can work.
5. the device of intelligent power saving according to claim 1, it is characterised in that it also includes economize on electricity test cell, the section
Electrical test unit is used to start a series of dutycycles in the control unit calculating following short period to judge whether load is located
In standby, so as to shorten the stand-by period.
6. a kind of operation method of the device of described intelligent power saving for any of Claims 1 to 5, its feature exists
In to supply line's progress current sampling of load supplying, the current sampling is converted to voltage signal and forms a PWM after handling
Signal, control unit receives the pwm signal, and control unit determines the cycle of pwm signal, for each cycle in pwm signal
Waveform, the time that the waveform portion produced higher than setting value is maintained accounts for the ratio in cycle and is designated as the first detected value, or is less than
Time for being maintained of waveform portion that setting value is produced accounts for the ratio in cycle and is designated as the second detected value, be less than when the first detected value or
During equal to set the first reference value as standby reference, control unit judges load for standby, or, detect when second
When value is more than or equal to set the second reference value as standby reference, control unit judges to load to be standby；Work as judgement
Load for it is standby when, control unit controlling switch unit cut-out supply line.
7. operation method according to claim 6, it is characterised in that the generating process of pwm signal is that current sampling is changed
For voltage signal, the voltage signal is compared with reference voltage, and reference voltage is described setting value, if more than reference voltage,
The first signal is exported, if less than reference voltage, exporting secondary signal；
Control unit determines that the process in the cycle of pwm signal is, for each cycle t, and control unit is with receive first
As cycle t start time t1 at the time of residing for first signal or secondary signal, accordingly, if with first the first signal institute
As cycle t start time t1 at the time of place, then after the first signal interruption, at the time of the first signal is residing when occurring again
As cycle t end of time t3, if at the time of using residing for first secondary signal as cycle t start time t1, when
After secondary signal is interrupted, cycle t end of time t3 is used as at the time of residing when secondary signal occurs again；
The calculating process of first detected value or the second detected value is, according to the first signal, then when control unit is received continuously
During the first signal occurred, then the continuous appearance the maintained time is designated as t2, and by formula A=t2/t, t=(t3-t1),
Calculated to obtain the first detected value A；Or, according to secondary signal, then when control unit receive continuously occur
During binary signal, then the continuous appearance the maintained time is designated as t4, and by formula B=t4/t, t=(t3-t1), is calculated
To obtain the second detected value B；Or, calculated by B=1-A and obtain B；Or, calculated by A=1-B and obtain A；
Standby deterministic process is that the A obtained under load ideal case is designated as the first reference value A 1, for several continuous cycles
T, is respectively less than or during equal to A1 when each cycle t calculates obtained A, then judges that load, in standby, is otherwise redefined continuous
Several cycles t t start cycle, and whether rejudged in standby；
Or, the B obtained under load ideal case is designated as the second reference value B1, for continuous several cycles t, when each week
Phase t calculates obtained B and is all higher than or during equal to B1, then judges that load, in standby, otherwise redefines several continuous weeks
Phase t t start cycle, and whether rejudged in standby.
8. operation method according to claim 7, it is characterised in that start cycle t redefine for, once there is A
Cycle t less than or equal to A1, or, once there is the cycle t that B is more than or equal to B1, then cycle t is used as start cycle
t。
9. operation method according to claim 7, it is characterised in that the A obtained in the case of loaded work piece is designated as A2, A1+B
Obtain C, C is less than A2, the C as the first reference value, or, the B obtained in the case of loaded work piece is designated as B2, and B1-D obtains E, E
The second reference value is used as less than B2, the E.
10. operation method according to claim 7, it is characterised in that initial A1 or B1 is set by predetermined manner,
A1 or B1 is redefined then by trigger element to be started.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114415059A (en) * | 2022-01-19 | 2022-04-29 | 北京全路通信信号研究设计院集团有限公司 | Signal color lamp detection circuit and detection method of signal color lamp state |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11311436A (en) * | 1998-04-28 | 1999-11-09 | Toshiba Corp | Air conditioner |
| US20100075264A1 (en) * | 2008-09-22 | 2010-03-25 | Robertshaw Controls Company | Redundant Ignition Control Circuit and Method |
| CN203289323U (en) * | 2013-05-21 | 2013-11-13 | Tcl通力电子（惠州）有限公司 | Power supply circuit and switching power supply |
| CN103944385A (en) * | 2014-03-24 | 2014-07-23 | 矽力杰半导体技术(杭州)有限公司 | Control circuit and method for ultralow static power consumption and switching type regulator |
| CN103997116A (en) * | 2014-02-18 | 2014-08-20 | 重庆荣凯川仪仪表有限公司 | Emergency power supply control system based on DSP (Digital Signal Processor), and control method |
| CN104348139A (en) * | 2014-10-24 | 2015-02-11 | 深圳市炜烨丰电子科技有限公司 | Safe energy-saving power supply |
| CN105515362A (en) * | 2014-09-23 | 2016-04-20 | 深圳市瑞必达科技有限公司 | Ultra-low standby control circuit, power supply circuit and electric equipment |
| CN206877190U (en) * | 2017-05-18 | 2018-01-12 | 上海路美思电气有限公司 | The device of intelligent power saving |
-
2017
- 2017-05-18 CN CN201710352842.7A patent/CN107132870B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11311436A (en) * | 1998-04-28 | 1999-11-09 | Toshiba Corp | Air conditioner |
| US20100075264A1 (en) * | 2008-09-22 | 2010-03-25 | Robertshaw Controls Company | Redundant Ignition Control Circuit and Method |
| CN203289323U (en) * | 2013-05-21 | 2013-11-13 | Tcl通力电子（惠州）有限公司 | Power supply circuit and switching power supply |
| CN103997116A (en) * | 2014-02-18 | 2014-08-20 | 重庆荣凯川仪仪表有限公司 | Emergency power supply control system based on DSP (Digital Signal Processor), and control method |
| CN103944385A (en) * | 2014-03-24 | 2014-07-23 | 矽力杰半导体技术(杭州)有限公司 | Control circuit and method for ultralow static power consumption and switching type regulator |
| CN105515362A (en) * | 2014-09-23 | 2016-04-20 | 深圳市瑞必达科技有限公司 | Ultra-low standby control circuit, power supply circuit and electric equipment |
| CN104348139A (en) * | 2014-10-24 | 2015-02-11 | 深圳市炜烨丰电子科技有限公司 | Safe energy-saving power supply |
| CN206877190U (en) * | 2017-05-18 | 2018-01-12 | 上海路美思电气有限公司 | The device of intelligent power saving |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114415059A (en) * | 2022-01-19 | 2022-04-29 | 北京全路通信信号研究设计院集团有限公司 | Signal color lamp detection circuit and detection method of signal color lamp state |
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