CN105093920A - Automatic time collection method for turret clock based on Beidou and GPS double-satellite system - Google Patents
Automatic time collection method for turret clock based on Beidou and GPS double-satellite system Download PDFInfo
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- CN105093920A CN105093920A CN201410190854.0A CN201410190854A CN105093920A CN 105093920 A CN105093920 A CN 105093920A CN 201410190854 A CN201410190854 A CN 201410190854A CN 105093920 A CN105093920 A CN 105093920A
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Abstract
The invention discloses an automatic time collection method for turret clock based on a Beidou and GPS double-satellite system. The method enables time data to be converted into relative angles of each clock hand relative to the original point (12 o'clock) of a clock face, and breaks through a conventional transmission system where a gear ratio is fixed among a hour hand, a minute hand and a second hand, i.e., a mechanical clock movement which is relatively complex in design and manufacturing. The method employs a mode of closed loop control, and enables each hand to be quickly and accurately positioned at a correct time representation position through a universal part in a gear transmission manner. Therefore, the method irons out the defects of various types of control systems, guarantees the synchronization of a pointer-type turret clock with digital time, does not need a person to be on duty, and can solve a difficulty that a pointer-type clock in a public place is not accurate fundamentally.
Description
Technical field:
The present invention relates to the automatic correcting time of large-scale clock and watch, particularly one utilizes the Big Dipper and GPS dual-satellite system to carry out turret clock automatic correcting time method.
Background technology:
As everyone knows, although when the high development of high accuracy number timekeeping system, no matter large-scale pointer time clock is still in irreplaceable status in civilian and public occasion.Large tower clock is mainly used in large-scale public arena, as station, square, airport etc., not only as a timing tool, and can also as a significant view.
But present case is ten turret clocks nine is forbidden, in order to address this problem, domestic is all much when adopting artificial school and the method adopting the time reference signal steering needle formula clock of digital clock to run, and this method wastes time and energy, can not the synchronized update time.
At present, using maximum is opened loop control means.The shortcoming of this control method is that electronic system cannot understand the accurate location of clock pointer, cannot from the deviation of Row sum-equal matrix pointer position, once make a mistake, must artificial school time.In order to improve in outdoor compared with the reliability that rugged surroundings use, part turret clock uses simple machinery location to return control and photoelectric code disk controls, and ensure that and often walks the relatively accurate of turned position, but cannot find for already present pointer position mistake and correct.Only have and adopt digital photoelectric code disk location could realize the synchronous of pointer and digit time, but its positioning accuracy request is higher, required control line is also more, per minute (second) scale interval 3 degree on 360 degree of clock faces, by 1/3rd scale precision controlling requirements, positioning precision 1 degree, the binary number of each clock hand 0-359 obtains needs 10 lines, use Redundancy Design at least to need 20 lines under rugged surroundings, Installation and Debugging maintenance trouble, is difficult to promote the use of.
In recent years, along with the development of our big-dipper satellite and the universal of GPS of America GPS application, product civil nature degree is more and more higher, function when how to use the clock school of big-dipper satellite and gps system, and aspect when can apply to the school of big machinery clock, this is the problem needing us to solve.
Summary of the invention:
In view of above-mentioned technical matters, the invention provides a kind of turret clock automatic correcting time method based on the Big Dipper and GPS dual-satellite system.It is synchronous with digit time that the method can realize pointer turret clock, without the need to manually on duty, thus fundamentally solves the inaccurate difficult problem of public arena pointer clock.
Concrete technical scheme of the present invention is as follows:
Based on the turret clock automatic correcting time method of the Big Dipper and GPS dual-satellite system, the concrete steps of the method are as follows:
A. with the high precision atomic clock of Beidou satellite system for main time reference, be defined as the first local reference time by receiver by receiving this time signal; With the high precision atomic clock of gps satellite system for secondary time reference, be defined as the second local reference time by receiver by receiving this time signal;
B. by comparer reference time, the second local reference time of first of Beidou satellite system the local reference time and gps satellite system is carried out time parameter contrast, if the first local reference time is time consistent with second this locality reference time, then using this reference time as time during local turret clock benchmark school instantly; If the first local reference time is time inconsistent with the second local reference time, then using first this locality reference time as time during local turret clock benchmark school, or adopt local clock time as time during local turret clock benchmark school;
C. turret clock time, respectively on each needle shaft of minute, second connect arrangement one rotary transformer, angle position signal collection when each needle shaft pointer runs by described each rotary transformer is in real time passed through connected revolving afterwards and is become DSP converter and convert real angle-data to;
D., angle-data comparer is set, converts time during the local turret clock benchmark school determined before to real-time references angle data, and contrast with the real angle-data collected by the rotary transformer of corresponding each pointer; When references angle data are consistent with real angle-data, when representing that the turret clock time is precisely without the need to school; When references angle data and real angle-data inconsistent time, angular values comparer can send drive singal to turret clock drive unit, by this turret clock drive unit come real-time by each pointer regulation to correct time.；
E. described method repeats above-mentioned steps at some cycles Inner eycle and realizes automatic correcting time.
In such scheme, in described step c turret clock time, mode that each needle shaft of minute, second is connected by socket or transmission gear respectively settles a rotary transformer.
In such scheme, in described steps d, when references angle data and real angle-data inconsistent time, as references angle data are greater than real angle-data, time when representing that the turret clock real time is slower than benchmark school, angular values comparer, by sending clockwise driving instruction to turret clock drive unit, carrys out forward by turret clock drive unit and adjusts this pointer to correct time; As references angle data are less than in real angle-data, represent that the turret clock real time is faster than time during benchmark school, angular values comparer, by sending counterclockwise driving instruction to turret clock drive unit, carrys out this pointer of anti-phase adjustment to correct time by turret clock drive unit.
In such scheme, the cycle of described method automatic correcting time is 10 minutes.
Turret clock automatic correcting time method of the present invention is converted to every root clock hand respectively to the relative angle of clock face initial point (12 point) time figure, breach the kinematic train (namely manufacturing and designing the mechanical clock core of all more complicated) of fixed gear ratio between traditional time-division second hand, and utilize close-loop control mode, make each clock hand can navigate to rapidly correct time representation position with general part gear drive respectively.So not only overcome the shortcoming of existing all kinds of control system, but also ensure that pointer turret clock is synchronous with digit time, without the need to manually on duty, fundamentally can solve the difficult problem that public arena pointer clock is inaccurate.
It is pointed out that and adopt after the present invention, when actual school in process, turret clock error can be made to be less than 10 microseconds, clock hand angular deviation is less than ± and 1.5 degree.
Accompanying drawing illustrates:
The present invention is further illustrated below in conjunction with the drawings and specific embodiments.
Fig. 1 is the system chart of the method for the invention in specific implementation process.
Fig. 2 is turret clock clock face in present system, the structural representation of planting pin and rotary transformer.
Fig. 3 is the schematic diagram of the method for the invention system connection terminal of rotary transformer in specific implementation process.
Embodiment:
The technological means realized to make the present invention, creation characteristic, reaching object and effect is easy to understand, below in conjunction with concrete diagram, setting forth the present invention further.
As shown in Figure 1, realize system as the method for the invention, this system comprise turret clock 101, rotary transformer 102, revolve become DSP converter 103, angle-data comparer 104, turret clock drive unit 105, satellite signal receiver 106 and reference time comparer 107.
Wherein, angle-data comparer 104 connect respectively revolve become DSP converter 103, turret clock drive unit 105 and reference time comparer 107.Reference time, comparer 107 connected satellite signal receiver 106.Revolve change DSP converter 103 and connect some rotary transformers 102 (being three rotary transformers in this example) be connected with turret clock 101 pointer respectively.Rotary transformer 102 is used for gathering the operation physical quantity of turret clock each needle pivot.
The inventive method realizing the automatic correcting time to the turret clock time according to following steps of this system:
Step one: with the high precision atomic clock of Beidou satellite system for main time reference, was defined as the first local reference time by receiver by receiving this time signal; With the high precision atomic clock of gps satellite system for secondary time reference, be defined as the second local reference time by receiver by receiving this time signal;
Step 2: the second local reference time of first of Beidou satellite system the local reference time and gps satellite system is carried out time parameter contrast by comparer reference time, if the first local reference time is time consistent with second this locality reference time, then using this reference time as time during local turret clock benchmark school instantly; If the first local reference time is time inconsistent with the second local reference time, then using first this locality reference time as time during local turret clock benchmark school, or adopt local clock time as time during local turret clock benchmark school;
Step 3: turret clock time, mode that each needle shaft 201 of minute, second is connected by socket or transmission gear 202 respectively settles a rotary transformer 203, see Fig. 2.Angle position signal collection when each needle shaft pointer runs by each rotary transformer is in real time passed through the connected change DSP converter that revolves afterwards and is converted real angle-data to;
Step 4: arrange angle-data comparer, converts time during the local turret clock benchmark school determined before to real-time references angle data, and contrasts with the real angle-data collected by the rotary transformer of corresponding each pointer; When references angle data are consistent with real angle-data, when representing that the turret clock time is precisely without the need to school; When references angle data and real angle-data inconsistent time, angular values comparer can send drive singal to turret clock drive unit, by this turret clock drive unit come real-time by each pointer regulation to correct time.Namely as references angle data are greater than real angle-data, time when representing that the turret clock real time is slower than benchmark school, angular values comparer, by sending clockwise driving instruction to turret clock drive unit, carrys out forward by turret clock drive unit and adjusts this pointer to correct time; As references angle data are less than in real angle-data, represent that the turret clock real time is faster than time during benchmark school, angular values comparer, by sending counterclockwise driving instruction to turret clock drive unit, carrys out this pointer of anti-phase adjustment to correct time by turret clock drive unit.
The inventive method repeats above-mentioned steps at some cycles Inner eycle and realizes automatic correcting time, and the cycle of automatic correcting time is 10 minutes.
As shown in Figure 3, the repetition zero-bit precision of involved in the inventive method rotary transformer is 8 '.Rotary transformer has 2 groups of physically mutual vertical stator coils, and 2 groups of physically orthogonal rotor windings.Drawing 8 connection terminals is D1/D2, D3/D4, Z1/Z2, Z3/Z4 respectively, and each group coil turn is identical.We use rotary transformer on have 2 groups of stator coils and a group rotor coil.
Utilize circuit board export two phase differential be 90 degree ± 12V square wave as the pumping signal of revolving set.Because being related to us and claiming them to be sin and cos signal of phase place, although they are not sinusoidal wave.Sin signal and cos signal receive D1 and the D3 terminal revolving change respectively, revolve D2, D4, Z2 terminal ground of change, and the output signal of such Z1 terminal is exactly two groups of stator excitation signal superpositions on rotor winding.The phase differential that Z1 terminal outputs signal the input signal of relative D1 terminal just and revolve that to become rotating shaft linear relative to the anglec of rotation of shell.When change is revolved in installation, the angle of adjustment shell, Z1 and D1 signal homophase when making pointed 12, the count value of such 8253 just and pointer angle be directly proportional.
More than show and describe ultimate principle of the present invention and principal character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and instructions just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.
Claims (4)
1., based on the turret clock automatic correcting time method of the Big Dipper and GPS dual-satellite system, the method comprises:
A. with the high precision atomic clock of Beidou satellite system for main time reference, be defined as the first local reference time by receiver by receiving this time signal; With the high precision atomic clock of gps satellite system for secondary time reference, be defined as the second local reference time by receiver by receiving this time signal;
B. by comparer reference time, the second local reference time of first of Beidou satellite system the local reference time and gps satellite system is carried out time parameter contrast, if the first local reference time is time consistent with second this locality reference time, then using this reference time as time during local turret clock benchmark school instantly; If the first local reference time is time inconsistent with the second local reference time, then using first this locality reference time as time during local turret clock benchmark school, or adopt local clock time as time during local turret clock benchmark school;
C. turret clock time, respectively on each needle shaft of minute, second connect arrangement one rotary transformer, angle position signal collection when each needle shaft pointer runs by described each rotary transformer is in real time passed through connected revolving afterwards and is become DSP converter and convert real angle-data to;
D., angle-data comparer is set, converts time during the local turret clock benchmark school determined before to real-time references angle data, and contrast with the real angle-data collected by the rotary transformer of corresponding each pointer; When references angle data are consistent with real angle-data, when representing that the turret clock time is precisely without the need to school; When references angle data and real angle-data inconsistent time, angular values comparer can send drive singal to turret clock drive unit, by this turret clock drive unit come real-time by each pointer regulation to correct time;
E. described method repeats above-mentioned steps at some cycles Inner eycle and realizes automatic correcting time.
2. the turret clock automatic correcting time method based on the Big Dipper and GPS dual-satellite system according to claim 1, is characterized in that, in described step c turret clock time, mode that each needle shaft of minute, second is connected by socket or transmission gear respectively settles a rotary transformer.
3. the turret clock automatic correcting time method based on the Big Dipper and GPS dual-satellite system according to claim 1, it is characterized in that, in described steps d, when references angle data and real angle-data inconsistent time, as references angle data are greater than real angle-data, time when representing that the turret clock real time is slower than benchmark school, angular values comparer, by sending clockwise driving instruction to turret clock drive unit, carrys out forward by turret clock drive unit and adjusts this pointer to correct time; As references angle data are less than in real angle-data, represent that the turret clock real time is faster than time during benchmark school, angular values comparer, by sending counterclockwise driving instruction to turret clock drive unit, carrys out this pointer of anti-phase adjustment to correct time by turret clock drive unit.
4. the turret clock automatic correcting time method based on the Big Dipper and GPS dual-satellite system according to claim 1, it is characterized in that, the cycle of described method automatic correcting time is 10 minutes.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410190854.0A CN105093920A (en) | 2014-05-07 | 2014-05-07 | Automatic time collection method for turret clock based on Beidou and GPS double-satellite system |
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| CN201410190854.0A CN105093920A (en) | 2014-05-07 | 2014-05-07 | Automatic time collection method for turret clock based on Beidou and GPS double-satellite system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106230576A (en) * | 2016-08-02 | 2016-12-14 | 中国神华能源股份有限公司 | Time synchronism equipment, railway vehicle number identification system and method thereof |
| CN113676278A (en) * | 2021-08-19 | 2021-11-19 | 湖南中车时代通信信号有限公司 | LKJ timing method and device based on NTP and satellite clock |
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| CN202351431U (en) * | 2011-12-20 | 2012-07-25 | 西安宏泰时频技术有限公司 | Anti-interference device for global positioning system (GPS) |
| US20120257479A1 (en) * | 2008-01-16 | 2012-10-11 | Seiko Epson Corporation | Electronic Timepiece and Control Method for an Electronic Timepiece |
| CN203149306U (en) * | 2013-04-01 | 2013-08-21 | 柳州市达迪通信设备有限公司 | Beidou GPS dual-mode time service device |
| CN103684733A (en) * | 2013-09-28 | 2014-03-26 | 国家电网公司 | Automatic verification method and special-purpose equipment for clock synchronization |
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| CN2715201Y (en) * | 2004-05-28 | 2005-08-03 | 上海宇丰电子信息工程有限责任公司 | Clock with satellite timing and auto-control pointer positioning |
| US20120257479A1 (en) * | 2008-01-16 | 2012-10-11 | Seiko Epson Corporation | Electronic Timepiece and Control Method for an Electronic Timepiece |
| CN202351431U (en) * | 2011-12-20 | 2012-07-25 | 西安宏泰时频技术有限公司 | Anti-interference device for global positioning system (GPS) |
| CN203149306U (en) * | 2013-04-01 | 2013-08-21 | 柳州市达迪通信设备有限公司 | Beidou GPS dual-mode time service device |
| CN103684733A (en) * | 2013-09-28 | 2014-03-26 | 国家电网公司 | Automatic verification method and special-purpose equipment for clock synchronization |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106230576A (en) * | 2016-08-02 | 2016-12-14 | 中国神华能源股份有限公司 | Time synchronism equipment, railway vehicle number identification system and method thereof |
| CN113676278A (en) * | 2021-08-19 | 2021-11-19 | 湖南中车时代通信信号有限公司 | LKJ timing method and device based on NTP and satellite clock |
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