CN105607462A - Pointer calibration method and device for pointer type clock - Google Patents
Pointer calibration method and device for pointer type clock Download PDFInfo
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- CN105607462A CN105607462A CN201610134549.9A CN201610134549A CN105607462A CN 105607462 A CN105607462 A CN 105607462A CN 201610134549 A CN201610134549 A CN 201610134549A CN 105607462 A CN105607462 A CN 105607462A
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- pointer
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- G—PHYSICS
- G04—HOROLOGY
- G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
- G04C11/00—Synchronisation of independently-driven clocks
- G04C11/002—Synchronisation of independently-driven clocks by changing the driving speed
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- Electromechanical Clocks (AREA)
Abstract
The invention provides a pointer calibration method and device for a pointer type clock. The pointer calibration method comprises the following steps that 1, pointers are mounted to a clock mechanism, and initial indication time indicated by the pointers is input to a controller; 2, the controller obtains initial standard time, calculates a difference value between the initial standard time and the initial indication time and judges whether the difference value is zero or not, if no, the controller drives the clock mechanism to make up the time till current indication time indicated by the pointers is synchronous with current standard time. According to the pointer calibration method and device for the pointer type clock, time needed in the timing process is quite short, and completion of a great amount of pointer mounting operation and later-stage site timing work are facilitated.
Description
Technical field
The present invention relates to timing control technology field, relate in particular to a kind of pointer of pointer clock to needle methodAnd device.
Background technology
Along with urban construction development with rapid changepl. never-ending changes and improvements, the urban public utilities such as modernization airport, subway, stationIn succession build up the market demand rapid growth of local area multiple terminals clock system; Terminal clock is with stone at presentEnglish crystal frequency source when walking, transports for a long time and can produce accumulation deviation while walking, therefore horological industry in recent yearsOpen the research of Time synchronization technique. Time synchronization technique is the method during by school, and clock is walked constantlyBetween compare, calibrate with the standard time, here, when in the school the key of technology be clock pointer position obtain with insteadFeedback.
Industry existing during to pin school technology be: specific at the hour wheel sheet of movement inside or minute wheel sheetOptocoupler feedback device is set on position, and the corresponding moment of this ad-hoc location is known; And working as hour wheelSheet or minute wheel sheet arrive after ad-hoc location, pointer are installed to the moment that this pointer is indicated and specificThe corresponding moment of position is identical; Then function while, starting the school of movement controller; Movement controller accountingCalculate the difference of corresponding moment of this ad-hoc location and current etalon time, and according to this difference, start while chasing afterUntil arrive the current standard time.
Existing during to pin school the defect of technology be: in the time that pointer is installed, must first wait for that movement moves to instituteAfter stating ad-hoc location, pointer could be installed, and can only carry out school with the corresponding time of optocoupler feedback deviceTime. After pointer installation, need be when manually starting school program. Here waiting for that movement moves to spy,In the process of allocation, the stand-by period may be very long (wherein, stand-by period the longest reach one hour),This be unfavorable for a large amount of pointer installation exercises complete with the school at later stage scene time work.
Summary of the invention
The present invention is directed to existing and during to pin school in technology, in the time that pointer is installed, must first wait for movement fortuneMove to described ad-hoc location, pointer could be installed, and can only be with the corresponding time of optocoupler feedback deviceProblem while carrying out school, proposed a kind of without optocoupler feedback device, the pointer clock can be to pin school timePointer to needle method and device.
Technical scheme proposed by the invention is as follows:
The present invention proposes a kind of pointer of pointer clock to needle method, comprise the following steps:
Step S1, pointer is installed on movement; And by now indicated initial instruction moment of this pointerInput to controller;
Step S2, controller obtain the primary standard moment, and calculate the primary standard moment during with initial instructionDifference between quarter, and judge whether this difference is zero, if not, when controller drives movement to chase after, untilThe indicated current instruction moment of pointer synchronizes with current etalon time.
The pointer of the above-mentioned pointer clock of the present invention is in needle method, and step S1 also comprises:
Speed and usual speed while setting in advance the chasing after of pointer; Wherein, while chasing after, speed is at controller driving machineCore chases after the movement velocity of pointer constantly; Usual speed is current instruction moment and the current mark indicated at pointerThe movement velocity of pointer when punctual quarter is synchronous;
Step S2 comprises:
Time period when controller calculates chasing after of pointer; Wherein,
Here t time period when chasing after; Δ θ is the difference between primary standard moment and initial instruction moment;vcSpeed during for the chasing after of pointer; vnFor the usual speed of pointer;
Then controller drives movement while chasing after, the time period while making pointer speed when chasing after move and continue to chase after, thenMake the movement velocity of pointer return to usual speed.
The pointer of the above-mentioned pointer clock of the present invention is in needle method, and step S1 also comprises:
Pointer is installed on movement, makes the indicated initial instruction moment of pointer early than the primary standard moment;And the difference between primary standard moment and initial instruction moment is less than 60 minute hand lattice numbers; The instruction moment isMoment on schedule.
The invention allows for a kind of pointer of pointer clock to needle device, comprise movement and controller; ShouldController comprises:
Internal clock source, for the current etalon time of real time record;
Pointer instruction moment input module, for inputting the indicated initial instruction moment of pointer;
Motor drive module, for driving movement motion, thereby drives hand motion;
MCU, electrical with pointer instruction moment input module, motor drive module and internal clock source respectivelyConnect, for receiving initial instruction moment of being sent by pointer instruction moment input module and during by insideThe primary standard moment that record in clock source, and calculate the primary standard moment and initially indicate poor between the momentValue, then controls according to this difference that motor drive module drives movement so that pointer while chasing after, until pointer instituteThe current instruction moment of instruction synchronizes with current etalon time.
The above-mentioned pointer of the present invention is in needle device, and controller also comprises:
Memory module, is electrically connected with MCU, speed and usual speed when storing the chasing after of pointer; ItsIn, while chasing after, speed is to drive movement to chase after the movement velocity of pointer constantly at controller; Usual speed is at pointerThe movement velocity of pointer when the indicated current instruction moment synchronizes with current etalon time;
MCU is the time period when calculating the chasing after of pointer also; Wherein,
Here t time period when chasing after; Δ θ is the difference between primary standard moment and initial instruction moment;vcSpeed during for the chasing after of pointer; vnFor the usual speed of pointer;
And when driving movement to chase after, the time period while making pointer speed when chasing after move and continue to chase after, then make to refer toThe movement velocity of pin returns to usual speed.
The present invention first installs pointer by adopting, then by indicated initial instruction moment of pointer nowInput to movement controller, movement controller obtains the now actual primary standard moment again, and calculates initialDifference between instruction moment and the primary standard moment, and while driving movement to chase after according to this difference, until pointerThe technical scheme that the indicated current instruction moment synchronizes with current etalon time, without using optocoupler feedback dressPut, meanwhile, while also making clock at any time can carry out pin school, and, this mistake during to pin schoolThe needed time of journey is very short, be conducive to a large amount of pointer installation exercises complete with the school at later stage scene time workDo.
Brief description of the drawings
Below in conjunction with drawings and Examples, the invention will be further described, in accompanying drawing:
Fig. 1 shows the high-level schematic functional block diagram of the pointer clock of the embodiment of the present invention;
The flow chart of the pointer of pointer clock that Fig. 2 shows the embodiment of the present invention to needle method.
Detailed description of the invention
The technical problem to be solved in the present invention is: existing during to pin school in technology, and in the time that pointer is installed, mustAfter need first waiting for that movement moves to described ad-hoc location, pointer could be installed, and can only feed back with optocouplerInstall the corresponding time while carrying out school. The technical thought solving this technical problem that the present invention proposes is: firstPointer is installed, then, indicated initial instruction moment of pointer is now inputed to movement controller,Then movement controller obtains the now actual primary standard moment, and calculates initial instruction moment and initial markDifference between punctual quarter, and while driving movement to chase after according to this difference, until the indicated current instruction of pointerMoment synchronizes with current etalon time.
In order to make technical purpose of the present invention, technical scheme and technique effect more clear, so that abilityField technique personnel understand and implement the present invention, below in conjunction with the accompanying drawings and the specific embodiments the present invention are done into oneWalk detailed explanation.
With reference to Fig. 1, Fig. 1 shows the high-level schematic functional block diagram of the pointer clock of the embodiment of the present invention.
As shown in Figure 1, pointer clock comprises controller and movement; Wherein,
Movement comprises:
Hour wheel sheet 15, needle movement when driving;
Minute wheel sheet 11, for driving a point needle movement;
Controller comprises:
Internal clock source 11, for the current etalon time of real time record; Particularly, in the present embodiment,Internal clock source 11 comprises real-time clock chip SD2201 and peripheral circuit; This clock chipThe built-in crystal oscillator of SD2201, and support I2C communication, can ensure that clock accuracy is in ± 5ppm; And inThe built-in rechargeable battery of portion's clock source 11, when this rechargeable battery can ensure inside in the situation that electricity is full ofWhen clock is walked, exceed one-year age, be 5～8 years the service life of battery. Like this, though external power source power down,Internal clocking source module still can keep the accuracy of internal clocking, and the pointer when again powering on provides while chasing afterReliable current etalon time, with for referencial use.
Pointer instruction moment input module 14, for inputting the indicated initial instruction moment of pointer; Here,Pointer comprises hour hands and minute hand;
Motor drive module 13, for driving movement motion, thereby drives hand motion; Particularly, existIn the present embodiment, motor drive module 13 is stopped state, rotation direction and is turned by turning of control step motorSpeed drives hour wheel sheet 15 and minute wheel sheet 11 to move, thereby drives pointer to rotate.
MCU10, respectively with pointer instruction moment input module 14, motor drive module 13 and internal clockingSource 11 is electrically connected, for receiving the initial instruction moment of being sent by pointer instruction moment input module 14And the primary standard moment of being recorded by internal clock source 11, and calculate the primary standard moment and initially refer toShow the difference between the moment, then control motor drive module 13 according to this difference and drive movement so that refer toWhen pin chases after, until the indicated current instruction moment of pointer synchronize with current etalon time.
Further, controller also comprises respectively the memory module 12 and the power down that are electrically connected with MCU10Detection module (not shown); Detection of power loss module is for detection of to the external power source of controller power supply beingNo power down; Memory module 12 is EEPROM or other non-volatile memory devices; MCU10 is receivingAfter the power-off signal that detection of power loss module is sent, power down identifier word and power down moment are kept to memory moduleIn 12.
With reference to Fig. 2, the flow process of the pointer of pointer clock that Fig. 2 shows the embodiment of the present invention to needle methodFigure. Based on above-mentioned pointer clock, the pointer of pointer clock of the present invention comprises the following steps needle method:
Step S1, pointer is installed on movement; And by now indicated initial instruction moment of this pointerInput to controller;
Step S2, controller obtain the primary standard moment, and calculate the primary standard moment during with initial instructionDifference between quarter, and judge whether this difference is zero, if not, when controller drives movement to chase after, untilThe indicated current instruction moment of pointer synchronizes with current etalon time.
Further, in the present embodiment, step S1 also comprises:
Speed and usual speed while setting in advance the chasing after of pointer; Wherein, while chasing after, speed is at controller driving machineCore chases after the movement velocity of pointer constantly; Usual speed is current instruction moment and the current mark indicated at pointerThe movement velocity of pointer when punctual quarter is synchronous. Here, when the chasing after of pointer speed and usual speed pre-storedIn memory module 12.
Step S2 comprises:
Time period when controller calculates chasing after of pointer; Wherein,
Here t time period when chasing after; Δ θ is described difference; vcSpeed during for the chasing after of pointer; vnFor pointerUsual speed;
Then controller drives movement while chasing after, the time period while making pointer speed when chasing after move and continue to chase after, thenMake the movement velocity of pointer return to usual speed.
Further, process while chasing after in order to complete fast, step S1 also comprises:
Pointer is installed on movement, makes the indicated initial instruction moment of pointer early than the primary standard moment;And the difference between primary standard moment and initial instruction moment is less than 60 minute hand lattice numbers, meanwhile, instructionMoment is moment on schedule.
Pointer to the actual use of needle method in, the unit of difference DELTA θ is minute hand lattice numbers; Meanwhile, 1Hour hands lattice number equals 60 minute hand lattice numbers. Such as, be 2:00 if initially indicate the moment, the primary standard momentFor 2:30, primary standard moment and initially to indicate the difference between the moment be 30 minute hand lattice numbers; And for example,If initially indicating the moment is 2:00, the primary standard moment is 3:30, when the primary standard moment is with initial instructionDifference between quarter is 90 minute hand lattice numbers;
And the unit of the usual speed of speed and pointer is minute hand lattice number/min when the chasing after of pointer. Meanwhile, refer toThe usual speed of pin is 1 minute hand lattice number/min, this expression: 1 minute hand lattice number of minute hand rotation per minute.
For the pointer of further illustrating pointer clock of the present invention is to needle method, lift a reality belowExample illustrates.
Speed v while setting in advance the chasing after of pointercBe 2 minute hand lattice number/min; The usual speed of pointer is 1 minute handLattice number/min;
In the time of 1:05, start pointer to be installed on movement, and to make the indicated moment of pointer be 1:00,Here, 1:00 is the initial instruction moment.
In the time of 1:30, manually will initially indicate the moment to indicate moment input module 14 to input to control by pointerDevice processed, now, MCU10 has just obtained this initial instruction moment, i.e. 1:00. Meanwhile, MCU10Obtain the current standard time that internal clock source 11 records, i.e. 1:30, here, 1:30 is primary standardMoment.
MCU10 calculates the difference between primary standard moment and initial instruction moment, and this difference is 30 minute handsLattice number, this difference is not 0. Time period t when MCU10 calculates chasing after of pointer again:
Finally, when MCU10 drives movement to chase after, minute hand is rotated with 2 minute hand lattice numbers/min, and continue30min, then, makes the movement velocity of minute hand return to 1 minute hand lattice number/min. Like this, pointer is indicatedThe current instruction moment just synchronize with current etalon time.
The present invention first installs pointer by adopting, then by indicated initial instruction moment of pointer nowInput to movement controller, movement controller obtains the now actual primary standard moment again, and calculates initialDifference between instruction moment and the primary standard moment, and while driving movement to chase after according to this difference, until pointerThe technical scheme that the indicated current instruction moment synchronizes with current etalon time, without using optocoupler feedback dressPut, meanwhile, while also making clock at any time can carry out pin school, and, this mistake during to pin schoolThe needed time of journey is very short, be conducive to a large amount of pointer installation exercises complete with the school at later stage scene time workDo.
Should be understood that, for those of ordinary skills, can be improved according to the above descriptionOr conversion, and all these improvement and conversion all should belong to the protection domain of claims of the present invention.
Claims (5)
1. the pointer of pointer clock, to a needle method, is characterized in that, comprises the following steps:
Step S1, pointer is installed on movement; And by now indicated initial instruction moment of this pointerInput to controller;
Step S2, controller obtain the primary standard moment, and calculate the primary standard moment during with initial instructionDifference between quarter, and judge whether this difference is zero, if not, when controller drives movement to chase after, straightSynchronize with current etalon time to the indicated current instruction moment of pointer.
2. the pointer of pointer clock according to claim 1, to needle method, is characterized in that, stepRapid S1 also comprises:
Speed and usual speed while setting in advance the chasing after of pointer; Wherein, while chasing after, speed is for to drive at controllerMovement chases after the movement velocity of pointer constantly; Usual speed is the current instruction moment indicated at pointer and works asThe movement velocity of pointer when front etalon time is synchronous;
Step S2 comprises:
Time period when controller calculates chasing after of pointer; Wherein,
Here t time period when chasing after; Δ q is the difference between primary standard moment and initial instruction moment;vcSpeed during for the chasing after of pointer; vnFor the usual speed of pointer;
Then controller drives movement while chasing after, the time period while making pointer speed when chasing after move and continue to chase after,Make again the movement velocity of pointer return to usual speed.
3. the pointer of pointer clock according to claim 2, to needle method, is characterized in that, stepRapid S1 also comprises:
Pointer is installed on movement, makes the indicated initial instruction moment of pointer early than the primary standard moment;And the difference between primary standard moment and initial instruction moment is less than 60 minute hand lattice numbers; The instruction moment isMoment on schedule.
4. the pointer of pointer clock, to a needle device, is characterized in that, comprises movement and controller;This controller comprises:
Internal clock source (11), for the current etalon time of real time record;
Pointer instruction moment input module (14), for inputting the indicated initial instruction moment of pointer;
Motor drive module (13), for driving movement motion, thereby drives hand motion;
MCU (10), respectively with pointer instruction moment input module (14), motor drive module (13)And internal clock source (11) electric connection, for receiving by pointer instruction moment input module (14) instituteThe initial instruction moment of sending and the primary standard moment of being recorded by internal clock source (11), and meterCalculate the primary standard moment and initially indicate the difference between the moment, then controlling motor according to this difference and driveDynamic model piece (13) drives movement so that pointer while chasing after, until indicated current instruction moment of pointer with oughtFront etalon time is synchronous.
5. pointer according to claim 4, to needle device, is characterized in that, controller also comprises:
Memory module (12), is electrically connected with MCU (10), when storing the chasing after of pointer speed andUsual speed; Wherein, while chasing after, speed is to drive movement to chase after the movement velocity of pointer constantly at controller; GeneralLogical speed is the motion speed of pointer while synchronizeing with current etalon time in the indicated current instruction moment of pointerDegree;
MCU (10) is the time period when calculating the chasing after of pointer also; Wherein,
Here t time period when chasing after; Δ θ is the difference between primary standard moment and initial instruction moment;vcSpeed during for the chasing after of pointer; vnFor the usual speed of pointer;
And when driving movement to chase after, the time period while making pointer speed when chasing after move and continue to chase after, then makeThe movement velocity of pointer returns to usual speed.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610134549.9A CN105607462A (en) | 2016-03-10 | 2016-03-10 | Pointer calibration method and device for pointer type clock |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610134549.9A CN105607462A (en) | 2016-03-10 | 2016-03-10 | Pointer calibration method and device for pointer type clock |
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| CN105607462A true CN105607462A (en) | 2016-05-25 |
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| CN201610134549.9A Pending CN105607462A (en) | 2016-03-10 | 2016-03-10 | Pointer calibration method and device for pointer type clock |
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| CN109031937A (en) * | 2018-08-06 | 2018-12-18 | 深圳市极智宏创科技有限公司 | A kind of pointer type wristwatch automatic correcting time method, system and device |
| CN114253118A (en) * | 2021-12-06 | 2022-03-29 | 珠海经济特区南森科技有限公司 | Mechanical pointer type automobile clock system and travel time method |
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