CN101995816B - Automatic clock calibration method and automatic clock calibration device - Google Patents
Automatic clock calibration method and automatic clock calibration device Download PDFInfo
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- CN101995816B CN101995816B CN201010518856XA CN201010518856A CN101995816B CN 101995816 B CN101995816 B CN 101995816B CN 201010518856X A CN201010518856X A CN 201010518856XA CN 201010518856 A CN201010518856 A CN 201010518856A CN 101995816 B CN101995816 B CN 101995816B
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Abstract
The invention discloses an automatic clock calibration method and an automatic clock calibration device. The method comprises the following steps of: (A100) determining a time calibration parameter and a unit timing period by a clock according to a timing error calibration parameter; (A200) enabling the clock to normally time and generate a varying timing period parameter; (A300) judging whether the variance of the timing period parameter is equal to the time calibration parameter or not and executing the step (A400) if the variance of the timing period parameter is equal to the time calibration parameter or else executing the step (A200) if the variance of the timing period parameter is not equal to the time calibration parameter; (A400) judging the timing accuracy of the clock and executing the step (A500) if the clock is fast and executing the step (A600) if the clock is slow; (A500) reducing one timing period unit of a time value of the clock and returning to the step (A200) to re-calibrate; and (A600) increasing one timing period unit of the time value of the clock and returning to the step (A200) to re-calibrate; and (A200). The invention can be adopted to accurately calibrate the accumulative time error of the clock so as to reach the aim of high-accuracy timing with the clock.
Description
Technical field
The present invention relates to clock and watch calibration field, in particular a kind of clock and watch automatic calibrating method and clock and watch self-checking device.
Background technology
Common quartz watch is owing to quartz crystal oscillator self frequency error, and under 25 ℃ of situation of normal temperature, the monthly error great majority more than reaching in 20 seconds to 30 seconds when clock and watch were walked; And along with the influence of variation of ambient temperature, monthly error even can be bigger when walking in the actual use of clock and watch.For correcting crystal oscillation frequency error, improve the clock and watch accuracy of timekeeping, need make troubles to production for different crystal oscillators dispose different electric capacity usually.
Therefore, prior art awaits to improve and development.
Summary of the invention
The object of the present invention is to provide a kind of clock and watch automatic calibrating method and clock and watch self-checking device.Be intended to solve existing clock and watch since crystal oscillator self sum of errors Influence of Temperature cause walk the time inaccurate problem.
Technical scheme of the present invention is following:
Described clock and watch automatic calibrating method, the automatic correcting method after its calibration may further comprise the steps:
Steps A 100: clock and watch are confirmed correction time parameter and unit timing time according to the timing error corrected parameter;
Steps A 200: the normal timing of clock and watch, and the timing time parameter that changes;
Steps A 300: whether the variable quantity of judging the timing time parameter equals the correction time parameter, is execution in step A400 then, otherwise execution in step A200;
Steps A 400: judge clock and watch timing speed, execution in step A500 then soon, execution in step A600 then slowly;
Steps A 500: the watch time value reduces by 1 unit timing time, and returns steps A 200 beginnings once correction again;
Steps A 600: the watch time value increases by 1 unit timing time, and returns steps A 200 beginnings once correction again.
Wherein said unit timing time is meant denotable minimum time of day on the clock and watch, is 1/n second (n is a natural number), simultaneously also is that the every timing time of clock and watch equals the correction time during parameter, the time error that clock and watch self crystal oscillator error causes.
A kind of clock and watch self-checking device, it comprises clock and watch and chronographic recorder, said clock and watch comprise:
Be used to clock and the clock and watch kernel processor chip of automatic calibration process is provided;
Be used to store the storer of corrected parameter;
Be used to provide the quartz crystal oscillator of the frequency that clocks in clock and watch seconds;
Be used to show the LCDs of time;
Connect with chronographic recorder and to be used for clock and watch communication interface that self pulse per second (PPS) and crystal oscillator signal sent to chronographic recorder;
Said storer, quartz crystal oscillator, LCDs and communication interface are connected to said clock and watch kernel processor chip respectively, and said quartz crystal oscillator also connects the clock and watch communication interface;
Said chronographic recorder comprises:
Be used to provide the corrected parameter of clock and watch to reach the master controller that self timekeeping system is revised;
Be used to show the display device of self temporal information and calibration operation information;
Be used for being connected and obtaining the receiver module of standard satellite time with gps satellite;
Be used to start the button of calibration operation;
Be used to measure the high-resolution counter of clock and watch timing error;
Being used to high-resolution counter provides the constant-temperature crystal oscillator in clock source;
Connect with clock and watch and to be used for corrected parameter, standard time and pulse per second (PPS) are synchronously sent to the chronographic recorder communication interface of clock and watch;
Said display device, GPS receiver module, button, high-resolution counter and chronographic recorder communication interface are connected to master controller respectively, and said constant-temperature crystal oscillator connects high-resolution counter, and said high-resolution counter connects the chronographic recorder communication interface.
Said chronographic recorder communication interface and clock and watch communication interface are through the wired direct-connected or wireless connections of interface contact.
Described clock and watch self-checking device, wherein, said chronographic recorder separates setting with clock and watch.
Beneficial effect of the present invention: the present invention is that a kind of it walks time error through outside high precision calibration apparatus measures through automatic correction card; And then obtain away time error correction data and standard time information from this calibration instrument; And can be according to the error correction data; Automatically revise the time error of accumulation in when walking, thereby reach the clock and watch of pinpoint accuracy timing purpose.
Description of drawings
Fig. 1 is embodiment provides among the present invention chronographic recorder carries out calibration to clock and watch a connection synoptic diagram;
Fig. 2 is embodiment provides among the present invention chronographic recorder carries out calibration to clock and watch a process flow diagram;
Fig. 3 is the automatic correction process flow diagram after the automatic correction card calibration that embodiment provides among the present invention;
Fig. 4 is the automatic correction process flow diagram when non-calibration resets that embodiment provides among the present invention.
Embodiment
For making the object of the invention, technical scheme and advantage clearer, clear and definite, below develop simultaneously embodiment to further explain of the present invention with reference to accompanying drawing.
Automatically correction card is to obtain self to walk time error through clock and watch and outside high precision calibration instrument calibration, and then obtains away time error correction data and standard time information from this calibration instrument.And can be according to the error correction data, revise the time error of accumulation in when walking automatically, the influence when eliminating crystal oscillation frequency error automatically clock and watch are walked through programme controlled mode in then when walking.Thereby reach the clock and watch of pinpoint accuracy timing purpose.
The instrument of said auto-adjustment is a chronographic recorder, and said chronographic recorder includes but not limited to GPS clock or radio system.
As far as clock and watch production, situation that all need not too big variation on clock and watch design, the mode of production and cost improves the accuracy of timekeeping of clock and watch easily.
For for using in the life, more accurate when correction card is walked than conventional quartz table automatically, often can reduce in the use will be manually to the time, seriously forbidden the inconvenience that brings when the worry of timing and clock and watch are walked.
Referring to Fig. 1, the chronographic recorder that embodiment provides among the present invention carries out the connection synoptic diagram of calibration to clock and watch.Said clock and watch comprise the clock and watch kernel processor chip that is used to clock and automatic calibration process is provided; Be used to store the storer of corrected parameter; Be used to provide the quartz crystal oscillator of the frequency that clocks in clock and watch seconds; Be used to show the LCDs of time; Connect with chronographic recorder and to be used for clock and watch communication interface that self pulse per second (PPS) and crystal oscillator signal sent to chronographic recorder.Said storer, quartz crystal oscillator, LCDs and clock and watch communication interface are connected to said clock and watch kernel processor chip respectively; Said quartz crystal oscillator also connects the clock and watch communication interface.
Said chronographic recorder comprises the corrected parameter that is used to provide clock and watch and the master controller that self timekeeping system is revised; Be used to show the display device of self temporal information and calibration operation information; Be used for being connected and obtaining the receiver module of standard satellite time with gps satellite; Be used to start the button of calibration operation; Be used to measure the high-resolution counter of clock and watch timing error; Being used to high-resolution counter provides the constant-temperature crystal oscillator in clock source; Connect with clock and watch and to be used for corrected parameter, standard time and pulse per second (PPS) are synchronously sent to the chronographic recorder communication interface of clock and watch.The temperature sensor that also comprises measures ambient temperature.Said display device, receiver module, temperature sensor, button, high-resolution counter and chronographic recorder communication interface are connected to master controller respectively; Said constant-temperature crystal oscillator connects high-resolution counter; Said high-resolution counter connects the chronographic recorder communication interface.
Its connected mode is that the clock and watch communication interface is connected with the chronographic recorder communication interface, and connected mode can be that the interface contact is wired direct-connected, also can be wireless connections.Said clock and watch communication interface is used for the pulse per second (PPS) of clock and watch and crystal oscillator signal are sent to chronographic recorder, the clock and watch when said chronographic recorder communication interface is used for that corrected parameter, synchronizing pulse and standard time sent to the school.
Wherein, the GPS clock is an instance product of high precision calibration instrument.Its functional characteristics is: have the GPS receiver module can from gps satellite receive the temporal information of global standards and obtain time synchronization error less than the synchronous pulse per second (PPS) of 1us be clock and watch provide accurately to the time service; And be designed with high-resolution counter, be used to measure the clock and watch timing error.
As shown in Figure 2, it is following to the flow process that said automatic correction card carries out calibration that chronographic recorder is measured the clock and watch timing error:
Step S100: clock and watch are linked to each other with chronographic recorder, and start the calibration operation by chronographic recorder.
Its connected mode is for to be connected the clock and watch communication interface with the chronographic recorder communication interface, connected mode can be that the interface contact is wired direct-connected, also can be wireless connections.
Step S200: clock and watch reset and detect and have or not the calibration operation signal, after being checked through the calibration operation signal, when timing was by whole second at every turn, send pulsatile once to chronographic recorder.
Step S300: chronographic recorder is counted adjacent a plurality of pulse per second (PPS)s that clock and watch send over, and with 1 second count value of chronographic recorder self standard compare obtain clock and watch walk the time error parameter.
Chronographic recorder is counted adjacent a plurality of pulse per second (PPS)s that clock and watch send over; Count value and 1 second count value of chronographic recorder self standard are compared; Thereby obtain the speed of clock and watch per second timing with respect to chronographic recorder, and speed what etc. parameter, walk time error size and corresponding correction data according to these calculation of parameter clock and watch; Send clock and watch timing error correction data back to clock and watch again, send standard time information and time synchronizing pulse simultaneously.
Step S400: clock and watch receive and preserve the error correction parameter that chronographic recorder sends, and after receiving the standard time data, wait for synchronizing pulse, get into automatic makeover process when beginning to walk when being checked through synchronizing pulse and return calibration to become function signal to give chronographic recorder.
Step S500: the calibration that chronographic recorder reception clock and watch return becomes function signal, and the output information also finishes the calibration process.
The automatic round-off error of clock and watch, its prerequisite are that clock and watch have obtained the error correction parameter.Clock and watch are walked the time error corrected parameter and are comprised: error correction count value (NW) and error speed sign.
Said error correction count value (NW) expression is when needing to revise 1 or N unit timing time (after being NW unit timing time of clock and watch timing, the error of accumulation has reached 1 unit timing time) behind NW unit timing time of clock and watch timing.For example: clock and watch time of day 1/16 second, error correction count value NW represent, clock and watch timing NW after 1/16 second, the watch time value need increase or reduce 1/16 second (also can be clock and watch timing NW/16 after second, need to revise 1/16 second).
Said error speed sign increases when representing round-off error and still reduces the unit timing time.
Clock and watch calibration measuring error corrected parameter, clock and watch receive and the memory error corrected parameter through the calibration process, revise time error automatically according to this corrected parameter.If reset owing to reasons such as changing battery causes clock and watch in when walking, after restarting, clock and watch will read the error correction parameter from storer, and unnecessary calibration again can continue automatic correction.Certainly, the current time of clock and watch be need manually to the time.
As shown in Figure 3, it is following that automatic correction card is revised flow process automatically:
Steps A 100: clock and watch are confirmed correction time parameter and unit timing time according to the timing error corrected parameter;
Steps A 200: the normal timing of clock and watch, and the timing time parameter that changes;
Steps A 300: whether the variable quantity of judging the timing time parameter equals the correction time parameter, is execution in step A400 then, otherwise execution in step A200;
Steps A 400: judge clock and watch timing speed, execution in step A500 then soon, execution in step A600 then slowly;
Steps A 500: the watch time value reduces by 1 unit timing time, and returns steps A 200 beginnings once correction again;
Steps A 600: the watch time value increases by 1 unit timing time, and returns steps A 200 beginnings once correction again.
Timing error corrected parameter X comprises the control information of the used crystal oscillator of clock and watch.Resultant by calibration apparatus measures clock and watch timing error.Clock and watch are connected with the calibration instrument and carry out data communication and obtain the timing error parameter X.Clock and watch obtain the mode of timing error corrected parameter X, also can be the clock and watch timing error corrected parameter X that has recorded according to the calibration instrument, with the mode of button operation timing error corrected parameter X are input to clock and watch.
Error correction time parameter Y, how long the timing of expression clock and watch need revise a unit interval Z.Calculate according to the timing error corrected parameter X and the unit interval Z that have obtained by clock and watch.
Error correction time parameter Y also can be that clock and watch are contained in timing error corrected parameter X by the calculating of calibration instrument and with it when calibration, is extracted from timing error corrected parameter X by the processor on the clock and watch to obtain, and deduction and exemption are done complex calculation by the clock and watch processor.
Timing time I is the time quantum according to the watch time real-time change.When the variable quantity of timing time I equaled time parameter Y, clock and watch need carry out the correction of first-order error.This moment, the variable quantity of timing time I reset to zero.
Unit interval Z is a denotable minimum time of day on the clock and watch, is 1/n second (n is a natural number).Simultaneously also be that clock and watch timing Y is in the time, because the timing time error that clock and watch self crystal oscillator error causes.
Every timing Y time of clock and watch, unit interval of watch time correction, judge the watch time speed that the clock and watch crystal oscillator is influenced by timing error corrected parameter X, then watch time reduces by a unit interval soon, and then the clock watch time increases a unit interval slowly.
When clock and watch were normally walked, the per unit timing time interrupted once (as: 1 unit timing time is 1/16 second), and the error correction count value subtracts 1, when the error correction count value is zero.Again be written into original correction count value, and according to error speed sign, watch time increases or reduces 1 unit timing time.
Referring to Fig. 4, the automatic correction flow process of clock and watch when non-calibration is following:
Step B100: from the storer of clock and watch, read the correction time parameter;
Step B200: the normal timing of clock and watch, and the timing time parameter that changes;
Step B300: whether the variable quantity of judging the timing time parameter equals the correction time parameter, is execution in step B400 then, otherwise execution in step B200;
Step B400: judge clock and watch timing speed, execution in step B500 then soon, execution in step B600 then slowly;
Step B500: the watch time value reduces by 1 unit timing time, and returns step B200 and begin again correction once;
Step B600: the watch time value increases by 1 unit timing time, and returns step B200 and begin again correction once.
Should be understood that application of the present invention is not limited to above-mentioned giving an example, concerning those of ordinary skills, can improve or conversion that all these improvement and conversion all should belong to the protection domain of accompanying claims of the present invention according to above-mentioned explanation.
Claims (8)
1. clock and watch automatic calibrating method may further comprise the steps:
A100: clock and watch are confirmed correction time parameter and unit timing time according to the timing error corrected parameter;
A200: the normal timing of clock and watch, and the timing time parameter that changes;
A300: whether the variable quantity of judging the timing time parameter equals the correction time parameter, is execution in step A400 then, otherwise execution in step A200;
A400: judge clock and watch timing speed, execution in step A500 then soon, execution in step A600 then slowly;
A500: the watch time value reduces by 1 unit timing time, and returns steps A 200 beginnings once correction again;
A600: the watch time value increases by 1 unit timing time, and returns steps A 200 beginnings once correction again,
Wherein said unit timing time is meant denotable minimum time of day on the clock and watch, is 1/n second, and n is a natural number, also is simultaneously that the every timing time of clock and watch equals the correction time during parameter, the time error that clock and watch self crystal oscillator error causes.
2. clock and watch automatic calibrating method according to claim 1 is characterized in that, said timing error corrected parameter is that clock and watch are connected with chronographic recorder and carry out data communication and obtain.
3. clock and watch automatic calibrating method according to claim 1; It is characterized in that; Said timing error corrected parameter is the clock and watch timing error parameter that has recorded according to chronographic recorder, with the mode of button operation the timing error parameter is input to then and obtains in the clock and watch.
4. clock and watch automatic calibrating method according to claim 2 is characterized in that, clock and watch are connected with chronographic recorder and carry out the method that data communication obtains the timing error corrected parameter and carry out calibration and may further comprise the steps:
Clock and watch are linked to each other with chronographic recorder, and start the calibration operation by chronographic recorder;
Clock and watch reset and detect and have or not the calibration operation, after being checked through the calibration operation signal, when timing was by whole second at every turn, send pulsatile once to chronographic recorder;
Chronographic recorder is counted adjacent a plurality of pulse per second (PPS)s that clock and watch send over, and with 1 second count value of chronographic recorder self standard compare obtain clock and watch walk the time error corrected parameter;
It is characterized in that, also comprise step:
Clock and watch receive and preserve the error correction parameter that chronographic recorder sends, and after receiving the standard time data, wait for synchronizing pulse, get into automatic makeover process when beginning to walk when being checked through synchronizing pulse and return calibration to become function signal to give chronographic recorder;
The calibration that chronographic recorder reception clock and watch return becomes function signal, and the output information also finishes the calibration process.
5. clock and watch automatic calibrating method according to claim 1 is characterized in that, when said clock and watch resetted in non-calibration, said correction time parameter was from the storer of clock and watch, to read.
6. a clock and watch self-checking device is characterized in that, comprises clock and watch and chronographic recorder, and said clock and watch comprise:
Be used to clock and the clock and watch kernel processor chip of automatic calibration process is provided;
Be used to store the storer of corrected parameter;
Be used to provide the quartz crystal oscillator of the frequency that clocks in clock and watch seconds;
Be used to show the LCDs of time;
Connect with chronographic recorder and to be used for clock and watch communication interface that self pulse per second (PPS) and crystal oscillator signal sent to chronographic recorder;
Said storer, quartz crystal oscillator, LCDs and communication interface are connected to said clock and watch kernel processor chip respectively, and said quartz crystal oscillator also connects the clock and watch communication interface;
Said chronographic recorder comprises:
Be used to provide the corrected parameter of clock and watch to reach the master controller that self timekeeping system is revised;
Be used to show the display device of self temporal information and calibration operation information;
Be used for being connected and obtaining the receiver module of standard satellite time with gps satellite;
Be used to start the button of calibration operation;
Be used to measure the high-resolution counter of clock and watch timing error;
Being used to high-resolution counter provides the constant-temperature crystal oscillator in clock source;
Connect with clock and watch and to be used for corrected parameter, standard time and pulse per second (PPS) are synchronously sent to the chronographic recorder communication interface of clock and watch;
Said display device, receiver module, button, high-resolution counter and chronographic recorder communication interface are connected to master controller respectively, and said constant-temperature crystal oscillator connects high-resolution counter, and said high-resolution counter connects the chronographic recorder communication interface.
7. the clock and watch with automatic calibration function according to claim 6 is characterized in that, said chronographic recorder is the GPS clock, and said chronographic recorder separates setting with clock and watch.
8. the clock and watch with automatic calibration function according to claim 6 is characterized in that, said chronographic recorder communication interface and clock and watch communication interface are through the wired direct-connected or wireless connections of interface contact.
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| CN201010518856XA CN101995816B (en) | 2010-10-25 | 2010-10-25 | Automatic clock calibration method and automatic clock calibration device |
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| CN201010518856XA CN101995816B (en) | 2010-10-25 | 2010-10-25 | Automatic clock calibration method and automatic clock calibration device |
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| CN102722099B (en) * | 2012-06-13 | 2014-06-04 | 东莞市洲进钟表有限公司 | Clock correction system with error computing function and correction method |
| CN103034116A (en) * | 2012-11-14 | 2013-04-10 | 福建省计量科学研究院 | Method for improving accuracy of timing of quartz timer |
| CN106163026B (en) * | 2015-03-25 | 2018-11-20 | 福建吉星智能科技股份有限公司 | A kind of synchronous quick control method of sudden strain of a muscle of modulator |
| CN105116712A (en) * | 2015-08-03 | 2015-12-02 | 深圳市芯海科技有限公司 | Method for automatically calibrating built-in crystal oscillator |
| CN111208539B (en) * | 2019-12-18 | 2023-06-23 | 中国航空工业集团公司成都飞机设计研究所 | High-precision GNSS simulator time synchronization method |
| CN111769768B (en) * | 2020-05-29 | 2021-12-14 | 淮北微立淘科技有限公司 | Watch stepping motor driving compensation method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1108771A (en) * | 1994-03-15 | 1995-09-20 | 周文胜 | Automatic-calibration timer |
| JP3281757B2 (en) * | 1995-03-23 | 2002-05-13 | アマノ株式会社 | Automatic correction device for oscillation error in electronic timepiece |
| JPH1114775A (en) * | 1997-06-27 | 1999-01-22 | Asahi Plast Kogyo Kk | Method for automatically correcting display time of electronic clock |
| JP2001235570A (en) * | 2000-02-22 | 2001-08-31 | C-Dex Kk | Time correcting method for high accuracy timepiece device |
| CN1354402A (en) * | 2001-11-30 | 2002-06-19 | 精中（珠海）表业有限公司 | Clock system |
| CN1385769A (en) * | 2002-06-26 | 2002-12-18 | 宁波天安（集团）股份有限公司 | MCU controlled and run clock circuit error correction method |
| CN1601405A (en) * | 2003-12-01 | 2005-03-30 | 福州佳新电子有限公司 | Auto calibrating timer utilizing radio station timing signal |
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Effective date of registration: 20170606 Address after: 519000 Guangdong province Zhuhai Jida will delta East Road No. 1232 building 3-5 Patentee after: Jinheng Technology (Zhuhai) Co., Ltd. Address before: 519015 Guangdong province Zhuhai Jida Ji Shi Road No. 25 two floor No. 201 to No. 209 Co-patentee before: Zhuhai Precision Watch Co., Ltd. Patentee before: Zhuhai Jingzhun Electronic Co., Ltd. |