CN101118279A - Time autocorrection system and method for electronic device - Google Patents
Time autocorrection system and method for electronic device Download PDFInfo
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- CN101118279A CN101118279A CNA2006100296222A CN200610029622A CN101118279A CN 101118279 A CN101118279 A CN 101118279A CN A2006100296222 A CNA2006100296222 A CN A2006100296222A CN 200610029622 A CN200610029622 A CN 200610029622A CN 101118279 A CN101118279 A CN 101118279A
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Abstract
The present invention discloses a time autocorrection system and its method of an electronic installation provided with satellite navigation function. The time autocorrection system at least comprises a global positioning system receiver; a time signal seizing unit of the time signal is seized in the signal received from the global positioning system receiver; the time signal seizing unit is used to set a time zone setting unit, a clock unit, a control unit, a memory cell and a display element of the time zone in the site of the users; the time autocorrection system seizes the time signal in the signal received from the global positioning system receiver utilizing the time signal seizing unit, and calculates the time signal and the time zone information of the time zone setting unit through the control unit, then revises the system time of the electronic installation and obtains the standard time, thus overcoming the limitation of the inaccurate electronic installation system time caused by the limitation of the electronic installation clock unit self.
Description
[technical field]
The relevant a kind of automatic time correction method of the present invention especially is applied to have time autocorrection system and method in the electronic installation of satellite navigation function.
[background technology]
Development along with mechanics of communication, electronic installation popularity rate with time clock feature improves day by day, wherein the importance of the accuracy of clock in the actual use of electronic installation improves day by day, all relies on the accuracy of clock as the realization of functions such as present p.m.entry, alarm clock.And the accuracy of present clock depends primarily on the precision of the oscillator that uses in the clock circuit, and the common quartz (controlled) oscillator of many at present uses, its frequency error is at ± 20-50ppm (1,000,000/20-50), as the error with 20ppm is example, the time error that produce every day will be 1.728 seconds, the year error then is accumulated as 630.72 seconds, will be for 10.5 minutes, so can bring some inconvenience to the user.
At this problem, industry takes to use the quartz (controlled) oscillator of degree of precision or two kinds of methods using trimmer or similar elements that the frequency of ordinary oscillator is finely tuned.The deficiency of first method is: even use high-precision quartz (controlled) oscillator, the load capacitance of oscillatory circuit is interdependent in difference, so in fact can not obtain the high precision identical with quartz (controlled) oscillator, therefore no matter use how expensive element, also can not obtain the time of pin-point accuracy.The weak point of second method is: though use the general quartz (controlled) oscillator cost can be too not high, but need frequency regulation arrangement, as vernier capacitor, this has caused that component costs increases and makes the increase of frequency adjustment process comparatively loaded down with trivial details defective, particularly number of elements can cause obstruction to electronic device miniaturization.Even same electron-like element of while, but its electrical parameter is also inequality, so the error that causes is also inequality, so above-mentioned two kinds of methods all can not overcome this problem.
Simultaneously, more existing electronic installations all have the function of satellite navigation location, and existing GPS (Global Position System, abbreviation GPS) on the guider, as long as user's one start, the screen of GPS navigation device will show a default time, and this Preset Time is the time of GPS navigation device itself, is not the time on the Navsat.Therefore, also not finishing the shown time in when location when the GPS navigation device, is not the orthochronous of present GPS navigation device position.So a lot of users when using the GPS navigation device at the beginning, and can't learn at present whether the shown time is exactly the correct time on screen, thereby have caused very big puzzlement on the time at correct judgment.
In view of this, in fact being necessary to provide a kind of neither can increase the electronic installation cost, and applicable to the electronic installation time autocorrection system and the method with satellite navigation function of the electronic component with different electrical parameters.
[summary of the invention]
The object of the invention is to provide a kind of neither can increase the electronic installation cost, and applicable to the electronic installation time autocorrection system and the method with satellite navigation function of the electronic component with different electrical parameters.
For achieving the above object, time autocorrection system provided by the invention comprises GPS receiver at least, from the signal that this GPS receiver receives, capture the time signal acquisition unit of time signal, be used to be provided with the on-site time zone of user setup unit, the clock unit of this electronic installation, control module, storage unit and display unit, this electronic installation utilizes the time signal acquisition unit to capture time signal from the signal that this GPS receiver receives, and this time signal is calculated mutually with time-zone information in the setup unit of time zone, thereby revise the system time of this electronic installation and obtain the standard time by control module.
Be to realize another purpose of the present invention, provided by the inventionly utilize above-mentioned time autocorrection system that the time is carried out bearing calibration to comprise the steps:
This electronic installation is provided with time-zone information by the time zone setup unit, and is stored in the storage unit;
This time signal acquisition unit captures time signal from the signal that this GPS receiver receives;
This control module receives the time signal of this time signal acquisition unit output, and captures the time-zone information in the storage unit, and calculates;
The temporal information that this control module utilization calculating obtains is revised the system time of electronic installation and is shown.
Compared with prior art, the time signal acquisition unit that utilization of the present invention has the electronic installation of navigation feature captures time signal from the signal that this GPS receiver receives, and this time signal is calculated mutually with time-zone information in the setup unit of time zone by control module, thereby revise the system time of this electronic installation and obtain the standard time, thereby the system time error of electronic installation in time can be eliminated, even therefore the clock circuit of electronic installation adopts general quartz (controlled) oscillator, can not bring inconvenience to the user yet, so need not adopt comparatively expensive quartz (controlled) oscillator or other vernier capacitor etc., therefore can not increase the cost of electronic installation, can overcome electronic component simultaneously yet because of the different influences that cause of electrical parameter.
For purpose of the present invention, structural attitude and function thereof are had further understanding, conjunction with figs. is described in detail as follows now:
[description of drawings]
Fig. 1 is the composition frame chart of electronic installation of the present invention.
Fig. 2 is the process flow diagram of automatic time correction method for electronic device of the present invention.
[embodiment]
Be elaborated to of the present invention below with reference to Fig. 1 and Fig. 2, in the following description, this time autocorrection system can be applicable to have in the PDA(Personal Digital Assistant), smart phone of navigation locating function.
See also shown in Figure 1ly, implement time autocorrection system 1 of the present invention and comprise:
Time signal acquisition unit 11, in order to capture time signal the signal that receives from this GPS receiver 10, this time signal is meant the above-mentioned Greenwich Mean Time;
Time zone setup unit 12 is used to be provided with the on-site time zone of user;
See also shown in Figure 2ly, system time carried out bearing calibration, may further comprise the steps for the present invention utilizes above-mentioned time autocorrection system:
This electronic installation is provided with time-zone information by time zone setup unit 12, and is stored in the storage unit 14 (step 100);
This time signal acquisition unit 11 captures time signal (step 101) from the signal that this GPS receiver 10 receives;
This control module 16 receives the time signal of these time signal acquisition unit 11 outputs, and capture time-zone information in the storage unit 14, and calculate, be about to Greenwich Mean Time and time-zone information and add and subtract, be Beijing time (step 102) as adding 8 the Greenwich Mean Time;
The temporal information that this control module 16 utilizes calculating to obtain is revised the system time of electronic installation and is shown (step 103).
In the above-described embodiment, the user can set the cycle from normal moveout correction, and this control module 16 can judge whether to arrive calibration cycle automatically, thereby in time proofreaies and correct.Perhaps the user can be set to just proofread and correct after each startup GPS receiver 10.
Compared with prior art, the present invention utilizes time signal acquisition unit 11 to capture time signal from the signal that this GPS receiver 10 receives, and this time signal is calculated mutually with time-zone information in the time zone setup unit 12 by control module 16, thereby revise the system time of this electronic installation and obtain the standard time, thereby the system time error of electronic installation in time can be eliminated, even therefore the clock circuit of electronic installation adopts general quartz (controlled) oscillator, can not bring inconvenience to the user yet, so need not adopt comparatively expensive quartz (controlled) oscillator or other vernier capacitor etc., therefore can not increase the cost of electronic installation, can overcome electronic component simultaneously yet because of the different influences that cause of electrical parameter.
Claims (4)
1. a time autocorrection system is applied to have on the electronic installation of navigation feature, it is characterized in that this time autocorrection system comprises:
GPS receiver, in order to receive the signal of position location satellite, wherein this signal comprises latitude and longitude information and data such as between the Greenwich Mean Time;
The time signal acquisition unit is in order to capture time signal the signal that receives from this GPS receiver;
The time zone setup unit is used to be provided with the on-site time zone of user;
Clock unit provides the system time of this electronic installation;
Storage unit is in order to storage time zone data and other systematic parameter;
Display unit is in order to show other status information of temporal information and electronic installation;
Control module, couple with above-mentioned each unit, in order to controlling the running of above different units, and receive the time signal of this time signal acquisition unit output, and capture the time-zone information in the storage unit, calculate and revise the system time of electronic installation.
2. one kind is utilized above-mentioned time autocorrection system that system time is carried out bearing calibration, may further comprise the steps:
This electronic installation is provided with time-zone information by the time zone setup unit, and is stored in the storage unit;
This time signal acquisition unit captures time signal from the signal that this GPS receiver receives;
This control module receives the time signal of this time signal acquisition unit output, and captures the time-zone information in the storage unit, and calculates;
The temporal information that this control module utilization calculating obtains is revised the system time of electronic installation and is shown.
3. bearing calibration as claimed in claim 2 is characterized in that: this control module is regularly proofreaied and correct system time by the calibration cycle that the user sets.
4. bearing calibration as claimed in claim 2 is characterized in that: this control module is just proofreaied and correct after the each startup of GPS receiver.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CNA2006100296222A CN101118279A (en) | 2006-08-01 | 2006-08-01 | Time autocorrection system and method for electronic device |
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| CNA2006100296222A CN101118279A (en) | 2006-08-01 | 2006-08-01 | Time autocorrection system and method for electronic device |
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| CN101118279A true CN101118279A (en) | 2008-02-06 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101729626A (en) * | 2008-10-27 | 2010-06-09 | 希姆通信息技术（上海）有限公司 | Electronic device with multi-time zone event reminding function and reminding method |
| CN101867867A (en) * | 2009-04-16 | 2010-10-20 | 深圳富泰宏精密工业有限公司 | System time automatic updating system and method |
| CN101900990A (en) * | 2010-07-14 | 2010-12-01 | 无敌科技(西安)有限公司 | Method and device for realizing automatic adjustment for local city and time by using GPS function |
| CN103428844A (en) * | 2012-05-17 | 2013-12-04 | 上海闻泰电子科技有限公司 | Method for achieving mobile phone time synchronization of mobile phone terminal |
| CN104298898A (en) * | 2014-09-11 | 2015-01-21 | 北京深思数盾科技有限公司 | Software protection method and device |
| CN105938322A (en) * | 2015-03-06 | 2016-09-14 | 精工爱普生株式会社 | Electronic device, and control method of an electronic device |
| CN114614933A (en) * | 2022-03-18 | 2022-06-10 | 烟台恒时智能科技有限公司 | Time synchronization method and system based on satellite synchronous clock |
-
2006
- 2006-08-01 CN CNA2006100296222A patent/CN101118279A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101729626A (en) * | 2008-10-27 | 2010-06-09 | 希姆通信息技术（上海）有限公司 | Electronic device with multi-time zone event reminding function and reminding method |
| CN101867867A (en) * | 2009-04-16 | 2010-10-20 | 深圳富泰宏精密工业有限公司 | System time automatic updating system and method |
| CN101900990A (en) * | 2010-07-14 | 2010-12-01 | 无敌科技(西安)有限公司 | Method and device for realizing automatic adjustment for local city and time by using GPS function |
| CN103428844A (en) * | 2012-05-17 | 2013-12-04 | 上海闻泰电子科技有限公司 | Method for achieving mobile phone time synchronization of mobile phone terminal |
| CN104298898A (en) * | 2014-09-11 | 2015-01-21 | 北京深思数盾科技有限公司 | Software protection method and device |
| CN105938322A (en) * | 2015-03-06 | 2016-09-14 | 精工爱普生株式会社 | Electronic device, and control method of an electronic device |
| CN105938322B (en) * | 2015-03-06 | 2020-07-07 | 精工爱普生株式会社 | Electronic device and control method of electronic device |
| CN114614933A (en) * | 2022-03-18 | 2022-06-10 | 烟台恒时智能科技有限公司 | Time synchronization method and system based on satellite synchronous clock |
| CN114614933B (en) * | 2022-03-18 | 2022-11-04 | 烟台恒时智能科技有限公司 | Time synchronization method and system based on satellite synchronization clock |
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Open date: 20080206 |