CN104821820A - Timing time compensation method - Google Patents
Timing time compensation method Download PDFInfo
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- CN104821820A CN104821820A CN201510142263.0A CN201510142263A CN104821820A CN 104821820 A CN104821820 A CN 104821820A CN 201510142263 A CN201510142263 A CN 201510142263A CN 104821820 A CN104821820 A CN 104821820A
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- 230000001351 cycling effect Effects 0.000 claims description 2
- 230000003252 repetitive effect Effects 0.000 claims description 2
- 239000013078 crystal Substances 0.000 abstract description 11
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 230000001186 cumulative effect Effects 0.000 description 5
- 238000012545 processing Methods 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000000205 computational method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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Classifications
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- G—PHYSICS
- G04—HOROLOGY
- G04G—ELECTRONIC TIME-PIECES
- G04G7/00—Synchronisation
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
- H03L7/00—Automatic control of frequency or phase; Synchronisation
- H03L7/06—Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop
- H03L7/08—Details of the phase-locked loop
- H03L7/0805—Details of the phase-locked loop the loop being adapted to provide an additional control signal for use outside the loop
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
- H03L7/00—Automatic control of frequency or phase; Synchronisation
- H03L7/06—Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop
- H03L7/08—Details of the phase-locked loop
- H03L7/081—Details of the phase-locked loop provided with an additional controlled phase shifter
- H03L7/0812—Details of the phase-locked loop provided with an additional controlled phase shifter and where no voltage or current controlled oscillator is used
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Oscillators With Electromechanical Resonators (AREA)
- Electric Clocks (AREA)
Abstract
The invention provides a timing time compensation method. The timing time compensation method comprises the following compensation steps of: S1, inputting an initially-set timing time Ts; S2, judging whether the initially-set timing time Ts is greater than a timing time constant Tu; if not, skipping to a step S3; if yes, skipping to a step S4; S3, defining an actually-set timing time Tt to be equal to the initially-set timing time Ts; and S4, defining the actually-set timing time Tt to be equal to R*P+Ts, wherein P represents for an integer value obtained by dividing the initially-set timing time Ts by the timing time constant Tu and rounding, R represents for compensation time, and the compensation time is a difference value between the timing time constant Tu and the actually-set timing time Tt in the same timing time period. By virtue of the present invention, the crystal vibration errors can be basically eliminated, thereby ensuring that the difference value between the timing time and the actually-set timing time is not increased when the timing time is prolonged; the accuracy of the timing time is improved; the errors are reduced.
Description
Technical field
The present invention relates to a kind of time compensating method, particularly relate to a kind of compensation method being applicable to the timing of the electronic product being with timing function.
Background technology
Timing function is often used in a lot of household electrical appliance, as air-conditioning, refrigerator, washing machine and electric cooker etc., usually realizes controlling its switching on and shutting down with timing; Therefore the accuracy of timing becomes a large key factor in present technological development, and particularly in some medical electronics products, the required precision for timing is more increased.
At present, the electronic product relating to timing function, often because of the time error that main control chip crystal oscillator is small, adds that main control chip function to be dealt with is more, when timing is long, often occurs the situations such as accuracy is not high, and error is large; Special timing of working as reaches more than 10 hours, and error is obvious all the more.
That is, there is following defect with the electronic product of timing function on the market now: (1) timing affects very large by main control chip crystal oscillator; (2) when timing is long, timing is longer, and the error of accumulation is larger, far away with timing actual value; (3) timing is subject to the impact of procedure quantity handled by main control chip large, and handled by described main control chip, procedure quantity is larger, and the error of timing is larger.
Summary of the invention
Technical problem to be solved by this invention needs to provide a kind of then to compensate by the timing of setting and actual timing being compared, and makes the compensation method of the timing that its precision is higher and error is less.
To this, the invention provides a kind of compensation method of timing, comprise following compensation process:
Step S1, the timing Ts of input initial setting;
Step S2, judges whether the timing Ts of initial setting is greater than timing constant Tu, and described timing constant Tu is the timing cycle that User Defined is arranged, and then jumps to step S3 if not, if then jump to step S4;
Step S3, limits the timing Ts of the timing Tt=initial setting of actual set;
Step S4, limit the timing Tt=R*P+Ts of actual set, wherein, described P is equal portions quantity, and described P is the value of timing Ts divided by round numbers after timing constant Tu of initial setting; Described R is the make-up time; The described make-up time is in the same timing cycle, the difference between timing constant Tu and actual timing.
Described timing constant Tu is the timing cycle that User Defined is arranged, the cycle that this timing cycle calculated as a make-up time, self-defined setting can be carried out according to the demand of user, in general, the numerical value that 10 minutes, 15 points, 30 minutes or 1 hour etc. are different can be set to; The present invention passes through the timing Ts of initial setting divided by timing constant Tu, then the value of round numbers is as equal portions quantity P, and calculate in the timing cycle, difference between timing constant Tu and actual timing is as the make-up time, and then by software calculating, the timing of setting and actual timing are compared, then compensate according to actual conditions, the precision of the timing made is higher, and error is less.
Further improvement of the present invention is, in step S4, the measuring process of described make-up time is:
Step S41, while timing function is opened, starts stopwatch;
Step S42, in time reaching timing constant Tu, cuts off stopwatch immediately, and records Tf writing time of stopwatch;
Step S43, calculates the difference between timing constant Tu and writing time Tf;
Step S44, repeats step S41 to step S43, so circulates 5 ~ 20 times, ask difference mean value, be compensated the time.
By step S41 to step S44, can try to achieve difference mean value, described difference mean value is the make-up time, this makes it possible to know that timing and real time differ in timing constant Tu, and then effectively compensates the error produced.
Further improvement of the present invention is, in described step S44, repetitive cycling step S41 to step S43 totally 10 ~ 15 times, asks difference mean value, be compensated the time.In general, by the difference mean value calculated for 10 times that circulates, accuracy just can meet the electronic product of timing within 10 hours, circulate the setting of 10 ~ 15 times, compensation effect for timing is good, and, need data volume to be processed also little, reasonably can take into account the cost of product and the effect of compensation.
Further improvement of the present invention is, described stopwatch is computer stopwatch or high accuracy stopwatch.The calculating realizing the make-up time assisted by the computer stopwatch carried by electronic product or other high accuracy stopwatches, and without the need to extra equipment, implementation is simply effective, and cost is low.
Further improvement of the present invention is, described timing constant Tu is set to 10 ~ 60 minutes, when the timing Ts of initial setting is greater than 10 ~ 60 minutes, timing is carried out 10 ~ 60 minutes equal portions, and then the timing Ts of initial setting is divided into P equal portions, residue can not time of equal portions be Ty.
Further improvement of the present invention is, described timing constant Tu is set to 15 minutes, when the timing Ts of initial setting is greater than 15 minutes, timing is carried out 15 minutes equal portions, and then the timing Ts of initial setting is divided into P equal portions, residue can not time of equal portions be Ty.
Further improvement of the present invention is, after calculating the make-up time, often through the timing cycle corresponding to a timing constant Tu, just carries out single compensation to timing.
Further improvement of the present invention is, after each time timing being compensated, using the timing Ts ' of the timing after compensation as new initial setting, timing the Ts '=R+Ts-Tu of described new initial setting, then set the timing Ts of timing Ts ' as initial setting of this new initial setting, and then the timing Ts ' of this new initial setting is realized to the compensation process of step S1 to step S4.
Compared with prior art, beneficial effect of the present invention is: make the timing with the electronic product of timing function can not occur comparatively big error because of the cumulative of Crystal Oscillator Errors, substantially Crystal Oscillator Errors can be eliminated, and then ensure that and can not become large because timing is elongated with the timing difference of reality, add the accuracy of timing, reduce error; Meanwhile, can also reduce timing by the impact of main control chip processing speed, no matter timing how long, and also no matter main control chip needs to process how many data volumes, and its timing error is all very little.
Accompanying drawing explanation
Fig. 1 is the workflow schematic diagram of an embodiment of the present invention.
Embodiment
Below in conjunction with accompanying drawing, preferably embodiment of the present invention is described in further detail:
Embodiment 1:
As shown in Figure 1, this example provides a kind of compensation method of timing, comprises following compensation process:
Step S1, the timing Ts of input initial setting;
Step S2, judges whether the timing Ts of initial setting is greater than timing constant Tu, and described timing constant Tu is the timing cycle that User Defined is arranged, and then jumps to step S3 if not, if then jump to step S4;
Step S3, limits the timing Ts of the timing Tt=initial setting of actual set;
Step S4, limit the timing Tt=R*P+Ts of actual set, wherein, described P is equal portions quantity, and described P is the value of timing Ts divided by round numbers after timing constant Tu of initial setting; Described R is the make-up time, and the described make-up time is in the same timing cycle, the difference between timing constant Tu and actual timing.
Described timing constant Tu is the timing cycle that User Defined is arranged, the cycle that this timing cycle calculated as a make-up time, self-defined setting can be carried out according to the demand of user, in general, the numerical value that 10 minutes, 15 points, 30 minutes or 1 hour etc. are different can be set to; This example is passed through the timing Ts of initial setting divided by timing constant Tu, then the value of round numbers is as equal portions quantity P, and calculate in the timing cycle, difference between timing constant Tu and actual timing is as the make-up time, and then by software calculating, the timing of setting and actual timing are compared, then compensate according to actual conditions, the precision of the timing made is higher, and error is less.
In Fig. 1, described timing constant Tu is set to 15 minutes, when the timing Ts of initial setting is greater than 15 minutes, timing is carried out 15 minutes equal portions, and then the timing Ts of initial setting is divided into P equal portions, and residue can not time of equal portions be Ty.
In described step S4, the measuring process of described make-up time is:
Step S41, while timing function is opened, start stopwatch, described stopwatch is computer stopwatch or other high accuracy stopwatches;
Step S42, in time reaching 15 minutes, cuts off stopwatch immediately, and records Tf writing time of stopwatch;
Step S43, calculate the difference between writing time Tf 15 minutes, described difference is 15*60-Tf (unit is second);
Step S44, repeat step S41 to step S43, so circulate 5 ~ 20 times, preferred cycle 10 times, asks difference mean value, is compensated the time.
Described writing time, Tf was the actual timing described in step S4, timing constant Tu is set to 15 minutes by this example, because error in 15 minutes is hardly because the error of main control chip crystal oscillator and rope procedure quantity to be processed are affected, so do not need to compensate it; When the timing Ts of initial setting is greater than 15 minutes, the timing Ts of initial setting is carried out 15 minutes every equal portions, if can not decile, remaining timing need to compensate; Namely suppose that the timing Ts of initial setting is 31 minutes, only need compensate twice, suppose that the timing Ts of initial setting is divided into P equal portions, residue can not be Ty the decile time, make-up time is R, and by all timing parameters all with second (s) for unit, so the timing Tt of actual set is Tt=R*P+Ts.
Described make-up time R needs to contrast according to the real time, thus transfers the impact of main control chip Crystal Oscillator Errors and handled procedure quantity the contrast of real time and running time to, thus eliminating the need Crystal Oscillator Errors, is not subject to processing the impact of procedure quantity; The timing Ts of initial setting is carried out equal portions process contrast with the real time again, can eliminate the accumulation of error, such timing precision is higher.
The computational methods of make-up time R: arrange timing constant Tu and be set to 15 minutes, while setting timing function is opened, start computer stopwatch or the higher stopwatch of some precision; When timing arrives, cut off stopwatch immediately; Suppose that now stopwatch writing time is Tf, then timing in 15 minutes and actual 15 minutes differences are 15*60-Tf (unit is second); Circulation like this 10 times, asks its 10 mean values, is namely compensated time R.
When not using timing-compensation, if timing more than 10 hours, generally within main control chip 16M crystal oscillator, its error is greater than 5 minutes or more substantially, adopts timing-compensation, and no matter timing how long, and its error is all very little, substantially only has the error of several seconds.
After setting the timing Ts of initial setting, whether the timing Ts of initial setting will be greater than to the judgement of 15 minutes; If the timing Ts of initial setting is not greater than in 15 minutes, do not need to carry out timing-compensation, so Tt=Ts; If be greater than in 15 minutes, timing-compensation R need be increased, Tt=R*P+Ts.The large I of R value is calculated according to said method.
By the compensation method of this example and the timing function contrast not carrying out timing-compensation, the following form of its result:
As shown above, can not there is comparatively big error because of the cumulative of Crystal Oscillator Errors in the timing of this example, substantially can eliminate Crystal Oscillator Errors, and then ensure that can not be larger because of the elongated error that makes of timing, add the accuracy of timing, reduce error; Meanwhile, can also reduce timing by the impact of main control chip processing speed, no matter timing how long, and also no matter main control chip needs to process how many data volumes, and its timing error is all very little.
In the compensation method that this example describes, in every 15 minutes, carry out a timing-compensation, in fact can carry out timing-compensation by the timing point in different time sections; Once carry out contrasting with actual time obtaining time bias R as set one hour, such Cumulative Elapsed Time is longer, and its offset more approaches, and makes timing more accurate.
Embodiment 2:
On the basis of embodiment 1, after this example calculates the make-up time, often through the timing cycle corresponding to a timing constant Tu, just single compensation is carried out to timing.That is, suppose that timing constant Tu is 15 minutes, so, often after 15 minutes, just single compensation is carried out to timing.
After this example compensates timing each time, using the timing Ts ' of the timing after compensation as new initial setting, timing the Ts '=R+Ts-Tu of described new initial setting, then set the timing Ts of timing Ts ' as initial setting of this new initial setting, and then the timing Ts ' of this new initial setting is realized to the compensation process of step S1 to step S4.
That is, if timing constant Tu is 15 minutes, so, often after 15 minutes, just single compensation is carried out to timing, then using by the timing Ts ' of the timing after compensating as new initial setting, so that for being compensated process by the timing of the entirety after compensating each time; Give an example, suppose that the timing of initial setting is 25 hours, timing constant Tu is 15 minutes, make-up time is 10s, so, after 15 minutes, (25 hours-15 minutes+10 seconds) are compensated computing as the timing Ts ' of new initial setting, the timing Ts ' of new initial setting be 24 hours 45 points 10 seconds; After 15 minutes, the timing Ts ' that can produce again a new initial setting be 24 hours 30 points 20 seconds, by that analogy, when timing reaches 23 hours, the cumulative of make-up time has exceeded 15 minutes, like this, just also carried out to the compensation of a time 10 seconds the cumulative make-up time, therefore, this example has also carried out compensation calculation and operation to the make-up time, be equivalent to carry out dual compensation to original timing and make-up time afterwards, to achieve the accuracy of timing to the full extent.
Above content is in conjunction with concrete preferred implementation further description made for the present invention, can not assert that specific embodiment of the invention is confined to these explanations.For general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, some simple deduction or replace can also be made, all should be considered as belonging to protection scope of the present invention.
Claims (8)
1. a compensation method for timing, is characterized in that, comprises following compensation process:
Step S1, the timing Ts of input initial setting;
Step S2, judges whether the timing Ts of initial setting is greater than timing constant Tu, and described timing constant Tu is the timing cycle that User Defined is arranged, and then jumps to step S3 if not, if then jump to step S4;
Step S3, limits the timing Ts of the timing Tt=initial setting of actual set;
Step S4, limit the timing Tt=R*P+Ts of actual set, wherein, described P is equal portions quantity, and described P is the value of timing Ts divided by round numbers after timing constant Tu of initial setting; Described R is the make-up time; The described make-up time is in the same timing cycle, the difference between timing constant Tu and actual timing.
2. the compensation method of timing according to claim 1, is characterized in that, in step S4, the measuring process of described make-up time is:
Step S41, while timing function is opened, starts stopwatch;
Step S42, in time reaching timing constant Tu, cuts off stopwatch immediately, and records Tf writing time of stopwatch;
Step S43, calculates the difference between timing constant Tu and writing time Tf;
Step S44, repeats step S41 to step S43, so circulates 5 ~ 20 times, ask difference mean value, be compensated the time.
3. the compensation method of timing according to claim 2, is characterized in that, in described step S44, repetitive cycling step S41 to step S43 totally 10 ~ 15 times, asks difference mean value, be compensated the time.
4. the compensation method of timing according to claim 2, is characterized in that, described stopwatch is computer stopwatch or high accuracy stopwatch.
5. the compensation method of the timing according to Claims 1-4 any one, it is characterized in that, described timing constant Tu is set to 10 ~ 60 minutes, when the timing Ts of initial setting is greater than 10 ~ 60 minutes, timing is carried out 10 ~ 60 minutes equal portions, and then the timing Ts of initial setting is divided into P equal portions, residue can not time of equal portions be Ty.
6. the compensation method of timing according to claim 5, it is characterized in that, described timing constant Tu is set to 15 minutes, when the timing Ts of initial setting is greater than 15 minutes, timing is carried out 15 minutes equal portions, and then the timing Ts of initial setting is divided into P equal portions, residue can not time of equal portions be Ty.
7. the compensation method of timing according to claim 6, is characterized in that, after calculating the make-up time, often through the timing cycle corresponding to a timing constant Tu, just carries out single compensation to timing.
8. the compensation method of timing according to claim 7, it is characterized in that, after each time timing being compensated, using the timing Ts ' of the timing after compensation as new initial setting, timing the Ts '=R+Ts-Tu of described new initial setting, then set the timing Ts of timing Ts ' as initial setting of this new initial setting, and then the timing Ts ' of this new initial setting is realized to the compensation process of step S1 to step S4.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108628153A (en) * | 2018-04-28 | 2018-10-09 | 惠州市德赛西威汽车电子股份有限公司 | A method of improving vehicle-mounted MP5 times precision |
| WO2019024064A1 (en) * | 2017-08-04 | 2019-02-07 | 深圳市汇顶科技股份有限公司 | Timing method, clock device and terminal device |
| CN115355594A (en) * | 2022-08-23 | 2022-11-18 | 珠海格力电器股份有限公司 | Timing remote control method based on time correction |
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| US5826066A (en) * | 1996-08-08 | 1998-10-20 | Tandem Computers Incorporated | Method for keeping accurate time in a computer system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2019024064A1 (en) * | 2017-08-04 | 2019-02-07 | 深圳市汇顶科技股份有限公司 | Timing method, clock device and terminal device |
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| CN115355594A (en) * | 2022-08-23 | 2022-11-18 | 珠海格力电器股份有限公司 | Timing remote control method based on time correction |
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Address after: 518000 Guangdong province Shenzhen Guangming New District Gongming street Gongming South Avenue Geya Technology Building 3 building 1-4 layer Patentee after: Shenzhen Zhenbang intelligent Polytron Technologies Inc Address before: 518000 Guangdong, Nanshan District, Taoyuan, Longjing street, industrial zone, building A, building 2, building A, building on the ground floor, building B, building, building 6, building C, block B, building, building No. 3 Patentee before: SHENZHEN ZHENBANG INTELLIGENT TECHNOLOGY CO., LTD. |
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