CN105511257B - The Big Dipper can tame and docile time service method and the automatic time service wrist-watch of the Big Dipper - Google Patents
The Big Dipper can tame and docile time service method and the automatic time service wrist-watch of the Big Dipper Download PDFInfo
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- CN105511257B CN105511257B CN201511017331.7A CN201511017331A CN105511257B CN 105511257 B CN105511257 B CN 105511257B CN 201511017331 A CN201511017331 A CN 201511017331A CN 105511257 B CN105511257 B CN 105511257B
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- time
- time service
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- G—PHYSICS
- G04—HOROLOGY
- G04R—RADIO-CONTROLLED TIME-PIECES
- G04R20/00—Setting the time according to the time information carried or implied by the radio signal
- G04R20/02—Setting the time according to the time information carried or implied by the radio signal the radio signal being sent by a satellite, e.g. GPS
- G04R20/04—Tuning or receiving; Circuits therefor
-
- G—PHYSICS
- G04—HOROLOGY
- G04R—RADIO-CONTROLLED TIME-PIECES
- G04R20/00—Setting the time according to the time information carried or implied by the radio signal
- G04R20/02—Setting the time according to the time information carried or implied by the radio signal the radio signal being sent by a satellite, e.g. GPS
- G04R20/06—Decoding time data; Circuits therefor
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- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Electric Clocks (AREA)
- Electromechanical Clocks (AREA)
Abstract
The present invention, which discloses a kind of Big Dipper, can tame and docile time service method, which is characterized in that include the following steps：Step 1：The big-dipper satellite time is obtained by chip, and carries out time service, time service number is calculated as T；Step 2：After time N, chip time service is carried out again, and time service number is calculated as T+1；Step 3：Calculate the margin of error of the chip time in time N；Step 4：After time N, in the case that chip carries out time service T+2 again, first calculated time error amount is automatically added in chip display end, realizes self time antidote under non-satellite time service pattern, the method can reduce satellite time transfer electric quantity consumption, improve precision of keeping time.
Description
Technical field
The present invention relates to a kind of burglary-resisting installations, and in particular to a kind of carry-on object burglary-resisting installation and its theft preventing method.
Background technology
Big Dipper time service refers to periodically carrying out communication proof time with big-dipper satellite to Big Dipper product.However, existing north
In the equipment that struggles against, there is also certain errors due to crystal oscillator, electronic component etc., and passage error at any time is increasing,
When must carry out satellite school again.However in existing equipment, there are the equipment of automatic time service, but when its time service,
Since time deviation is excessive, time service operation periodically frequently occurs, therefore power consumption is big when can cause time service, and error is big to be lacked
It falls into, the feeling to cause Product Experience not strong to client.
New by looking into, we have found some domestic patent documents comprising：
1. Chinese patent, patent name：A kind of frequency-hopping synchronization implementation method based on Big Dipper time service chip, application number：
CN201210548879.4, abstract：Frequency-hopping synchronization implementation method based on Big Dipper time service chip, it is characterised in that including following step
Suddenly：1）Big Dipper time service chip is connected by serial ports with radio station FPGA, Big Dipper time dissemination system is constituted；2）Pass through Big Dipper time dissemination system
Big Dipper time signal is searched for, after searching Big Dipper time signal, radio station obtains accurate real-time time, which is converted
Passed through simultaneously using the short frequency-hopping synchronization for jumping and sending and being realized by the way of long jump is searched between radio station sending and receiving letter machine for radio station TOD
Big Dipper time dissemination system trains the crystal oscillator in radio station, obtains training parameter；3）In synchronizing process, if Big Dipper time signal goes out
Existing short interruptions, by step 2）The crystal oscillator in the training parameter training radio station of acquisition, radio station obtain more precise time,
It is converted into radio station TOD, the frequency-hopping synchronization between radio station sending and receiving letter machine is realized using slow search mechanisms；Otherwise, continue with short
It jumps the long mode for jumping search of transmission and maintains the synchronization in radio station, and training parameter is adjusted.
2. Chinese patent, patent name：A kind of frequency-hopping synchronization implementation method based on Big Dipper time service chip, application number：
Frequency-hopping synchronization implementation methods of the CN201210548879.4 based on Big Dipper time service chip, it is characterised in that include the following steps：1）
Big Dipper time service chip is connected by serial ports with radio station FPGA, Big Dipper time dissemination system is constituted；2）It is searched for by Big Dipper time dissemination system
Big Dipper time signal, after searching Big Dipper time signal, radio station obtains accurate real-time time, which is converted to electricity
Platform TOD using the short frequency-hopping synchronization for jumping and sending and being realized by the way of long jump is searched between radio station sending and receiving letter machine, while passing through the Big Dipper
Time dissemination system trains the crystal oscillator in radio station, obtains training parameter；3）In synchronizing process, if the appearance of Big Dipper time signal is short
When interrupt, by step 2）The crystal oscillator in the training parameter training radio station of acquisition, radio station obtains more precise time, by it
Radio station TOD is converted to, the frequency-hopping synchronization between radio station sending and receiving letter machine is realized using slow search mechanisms；Otherwise, continue to send out with short jump
It send the long mode for jumping search to maintain the synchronization in radio station, and training parameter is adjusted.
However above-mentioned method, a kind of method the easiest the most reliable can not be used to solve the problems, such as Big Dipper time service,
This just needs a kind of reliable Big Dipper time service method and product to solve the problem above-mentioned.
Invention content
The present invention is directed in existing Big Dipper time service equipment, and existing time service is inaccurate, and the big defect of product power consumption carries
Time service method and the automatic time service wrist-watch of the Big Dipper can be tamed and dociled for a kind of Big Dipper to solve the above problems.
What the basic skills of the present invention was realized in：A kind of Big Dipper can tame and docile time service method, include the following steps：Step 1：
The big-dipper satellite time is obtained by chip, and carries out time service, time service number is calculated as T；
Step 2：After set time N, chip time service is carried out again, and time service number is calculated as T+1；
Step 3：Calculate the margin of error of the chip time in time N；
Step 4：After time N, in the case that chip carries out time service T+2 again, first by calculated time error amount
It is automatically added in chip display end, then carries out chip time time service.
The present invention it is critical that：By calculating time error amount in the chip in 2 Big Dipper time service periods,
And before Big Dipper time service next time, the margin of error is added in the display end of chip, then carry out the time service of chip, so that
The margin of error is small when time service, and can reduce the power consumption of product.
In above-mentioned method, as detailed description, in the time in each time service number T and T+1, chip is calculated
The error of time, and before time service T+2 after the time difference of addition T and T+1 chips, then send out the instruction of time service T+2.
The numerical value of the T is more than or equal to 1.
After the time service error between chip time service twice is less than 2-1 seconds, the time difference of time service twice becomes N+320h- by N
500h.Time service time interval is calculated by algorithm, this algorithm is that can tame and docile time service algorithm.It in this way can effective product
Reduce the use of electricity.
According to the above method, inventor has invented a kind of automatic time service wrist-watch of the Big Dipper, including dial plate and watchband, the dial plate
It is equipped with display end, it is characterised in that：Further include Big Dipper chip, clock chip and MCU in the dial plate：
Clock chip often after time N, carries out time service；Before each time service, MCU calculates clock chip time service time
Time service between number T+1 and T is poor, and time difference number is added in display end, then controls clock chip and carry out T+2 time service behaviour
Make.
The beneficial effects of the invention are as follows：
1. the time error that the period that can reduce the non-satellite time service of Big Dipper positioning product generates, and reduction and satellite
The number of link, i.e., it is effective to reduce the power consumption generated by time service.
2. using the Big Dipper product of this method, after the time service by satellite several times, voluntarily travel time interval is increasingly longer,
Time error is smaller and smaller, and annual error rate can be less than 1 second.
3. the configuration of the present invention is simple by existing equipment, and is improved, is convenient for the industry according to the method for the present invention
It promotes the use.
Description of the drawings
Fig. 1 is the schematic diagram of the method for the present invention.
Specific implementation mode
The present invention is described below in conjunction with drawings and examples, following embodiment is explained with invention optimal effectiveness.
In the present embodiment, it is illustrated using product as application examples；
Embodiment 1：
The automatic time service wrist-watch of the product Big Dipper of the present invention, dial plate and watchband, dial plate are equipped with display screen, further include north in dial plate
Struggle against chip, clock chip and MCU.After adept table, wrist-watch clock chip carries out first time time service, and it is T that MCU, which records time service number,
(T=1), by time N（N=720H）Afterwards, clock chip carries out second of time service, and it is T+1 (T=1) that MCU, which records time service number, this
When, MCU is recorded in T+1 time service, and the time difference of clock chip and big-dipper satellite is P（P=5 second）, i.e., 5 seconds slow.
Using time N（N=720H）Afterwards, clock chip will carry out third time time service, and it is T+2 that MCU, which records time service number,
(T=1), at this point, MCU, before third time time service, clock is adjusted fast 5 seconds by control clock chip, and numerical value is directly displayed and is shown
In display screen, followed by third time time service T+2 (T=1).
After between MCU automatic correcting times continuously several times, when the time difference P of MCU comparison clocks chip and big-dipper satellite is less than 2
After second, the time difference of time service twice becomes N+320h by N（720H+320h）.Due to by the way that algorithm can be tamed and dociled, realizing the time of itself
Correction, reduces with the number of satellite link time service to reduce wrist-watch power consumption.
Embodiment 2：
Difference from Example 1 is, after between MCU automatic correcting times continuously several times, when MCU comparison clocks chip with
After the time difference P of big-dipper satellite is less than 1 second, the time difference of time service twice becomes N+320h by N（720H+500h）.To reduce
Wrist-watch power consumption.
Finally it should be noted that：Obviously, above-described embodiment is used for the purpose of clearly illustrating examples made by the present invention, and
Not to the restriction of implementation.For the those of ordinary skill in the field, it can also make on the basis of the above description
Other various forms of variations or variation.There is no need and unable to all embodiment party's formulas with exhaustion.And it is thus amplified
The obvious changes or variations gone out are still in the protection scope of this invention.
Claims (4)
1. a kind of Big Dipper can tame and docile time service method, which is characterized in that include the following steps：
Step 1：The big-dipper satellite time is obtained by chip, and carries out time service, time service number is calculated as T；
Step 2：After time N, chip time service is carried out again, and time service number is calculated as T+1；
Step 3：Calculate the margin of error of the chip time in time N；
Step 4：It is first that calculated time error amount is automatic in the case that chip carries out time service T+2 again after time N
Be added in chip display end, realize equipment automatic time calibration function itself, when beyond itself compared with when precision after, then with satellite link
Big-dipper satellite time service is carried out,
After the time service error between chip time service twice is less than 2~1 seconds, the time difference of time service twice becomes N+320h- by N
500h。
2. the Big Dipper according to claim 1 can tame and docile time service method, it is characterised in that：In each time service number T and T+1 when
In, the error of chip time is calculated, and before time service T+2 after the time difference of addition T and T+1 chips, then send out and award
When T+2 instruction.
3. the Big Dipper according to claim 1 can tame and docile time service method, it is characterised in that：The numerical value of the T is more than or equal to 1.
4. the Big Dipper according to claim 1 can tame and docile time service method, it is characterised in that：The Big Dipper can tame and docile time service method and can use
In the automatic time service wrist-watch of the Big Dipper, the automatic time service wrist-watch of the Big Dipper includes dial plate and watchband, and the dial plate is equipped with display end,
It is characterized in that：Further include Big Dipper chip, clock chip and MCU in the dial plate：
Clock chip often after time N, carries out time service；Before each time service, MCU calculates clock chip time service number T+
Time service between 1 and T is poor, and time difference number is added in display end, then controls clock chip and carry out T+2 time service operation.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511017331.7A CN105511257B (en) | 2015-12-30 | 2015-12-30 | The Big Dipper can tame and docile time service method and the automatic time service wrist-watch of the Big Dipper |
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| CN201511017331.7A CN105511257B (en) | 2015-12-30 | 2015-12-30 | The Big Dipper can tame and docile time service method and the automatic time service wrist-watch of the Big Dipper |
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| Publication Number | Publication Date |
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| CN105511257A CN105511257A (en) | 2016-04-20 |
| CN105511257B true CN105511257B (en) | 2018-09-25 |
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| CN106559103B (en) * | 2016-12-08 | 2019-03-29 | 西安烽火电子科技有限责任公司 | A kind of extensive hopped-frequency pulses system based on Beidou time service |
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| CN1354402A (en) * | 2001-11-30 | 2002-06-19 | 精中（珠海）表业有限公司 | Clock system |
| JP4882610B2 (en) * | 2005-12-20 | 2012-02-22 | セイコーエプソン株式会社 | Radio correction clock and radio correction clock time correction method |
| CN103092068B (en) * | 2011-11-03 | 2014-12-31 | 珠海精准电子有限公司 | Timing method and timing system |
| CN104040440A (en) * | 2012-11-06 | 2014-09-10 | 成都天奥电子股份有限公司 | Time Service Watch And Implementation Method Thereof |
| CN103235500A (en) * | 2013-05-21 | 2013-08-07 | 成都天奥电子股份有限公司 | Satellite time service method and timing device based on beidou |
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