CN102043378A

CN102043378A - Reverse drive method for pointer type electronic timekeeper stepping motor

Info

Publication number: CN102043378A
Application number: CN2009101809084A
Authority: CN
Inventors: 马学成
Original assignee: Shenzhen City Mos-Soft Electronic Technology Co Ltd
Current assignee: Shenzhen City Mos-Soft Electronic Technology Co Ltd
Priority date: 2009-10-21
Filing date: 2009-10-21
Publication date: 2011-05-04
Anticipated expiration: 2029-10-21
Also published as: CN102043378B

Abstract

The invention provides a method for reverse drive of pointer type electronic timekeeper stepping motor. A single reverse drive wave is transmitted to a stepping motor by two groups; wherein the first drive waveform group comprises the following timing sequence: a high level waveform, a low level waveform, a high level waveform, a low level waveform and a periodical waveform with alternation between high level and low level; the second drive waveform comprises the timing sequence of one high level at first and one low level in the rest time; and in the transmission process, the high level in the timing sequence of the second drive waveform is in accordance with the first low level in the timing sequence of the first drive waveform. By the above technology scheme, the invention realizes to drive the stepping motor in a present pointer type electronic timekeeper to rotate reversely; and further realizes the function of an electronic timekeeper to control the hands to rotate clockwise or counterclockwise, combined with the current stepping motor forward rotation driving method; enables the dynamic indicating function of the hand in hand type electronic timekeeper to be feasible; changes the defect that the hand only can indicate time information in prior arts; and further expands the application prospect of the hand type electronic timekeeper.

Description

Pointer electron clock step motor inversion driving method

[technical field]

The present invention relates to a kind of electronic watch driving method that takes the needle, refer in particular to a kind of driving method that drives step motor reverse rotation in the pointer electron watch and clock movement.

[background technology]

Clock and watch are subjected to liking of people as a kind of portable timing tool always, and particularly clock and watch are able to extensively popularize and enter every household in recent years, and wherein the appearance of electronic watch is performed meritorious deeds never to be obliterated.In the known pointer electron clock and watch, the pointer overwhelming majority in its clock and watch adopts the step motor drive mode, existing pointer electronic watch product on the market, be in the general driving restriction of clock rule design for a long time and stepper motor, its pointer can only unidirectional up time be walked, even this just means that only adjusting back pointer in the clock and watch use slightly adjusts work with regard to the achievable time, the operator also has to pass the some aperture needle rotations of forward in principle according to unidirectional walking and can finish, moreover, in electronic watch timing process, hour hands drive or are finished by stepper motor, stepper motor current drain in quick stepper drive pointer process is very big, thus the serviceable life of reducing the clock and watch battery greatly.In addition, along with transition of age, the modern more pursues novel fashion, this also is a challenge to horological industry, and the appearance of more and more integrated central controller electronic watches, the platform that provides an outstanding intelligent functions to realize undoubtedly, for example be provided with by simple, electronic watch can also can be finished the time instantly such as the date except that indicating, functions such as other time zone time indications, and pointer drive pattern that only can unidirectional rotation needs the long-time up time stepping of stepper motor undoubtedly when finishing above-mentioned functions, corresponding user's stepping need wait as long for and can't normally check the pointer time, but also can have influence on the use of clock and watch basic function, in the visible electronic watch only the pointer of unidirectional drive walking do not satisfied practical application.

[summary of the invention]

The objective of the invention is to overcome above-mentioned defective, a kind of pointer electron clock step motor inversion driving method that drives step motor reverse rotation in the pointer electron clock and watch is provided.

The object of the present invention is achieved like this: a kind of pointer electron clock step motor inversion driving method, and its improvements are: divide two groups to transmit single inversion driving waveform to step motor,

Described first group of drive waveforms sequential comprises a high level, low level, high level, low level and one section periodic waveform by the mutual variation of high and low level;

Described first group of drive waveforms sequential comprises t1 millisecond high level, t2 millisecond low level, t3 millisecond high level, the mutual periodic waveform that changes of t4 millisecond low level and high and low level, t1=0.1-5.1ms wherein, t2=0.5-6.7ms, t3=1.5-10ms, t4=0.2-3.2ms;

Described second group of drive waveforms sequential comprises the low level of a high level and all the other times, the corresponding transmission of low level of first appearance in the high level in described second group of drive waveforms sequential and the first group of drive waveforms sequential.

Described second group of drive waveforms sequential comprises a t5 millisecond high level and the low level of all the other times, t5=1.5-10ms, and with first group of drive waveforms sequential in the corresponding transmission of low level t2 of first appearance;

The mutual periodic waveform that changes of high and low level comprises that S dutycycle is the periodic waveform of Ds in described first group of drive waveforms sequential, wherein S=0-10, and Ds=1/8-7/8.

Than the common electronic watch driving method that takes the needle, beneficial effect of the present invention is the sequential coupling by two groups of drive waveforms, realized step motor is carried out the inversion driving stepping once, thereby meet step motor counter-rotating in can the continuous drive existing pointer electron clock and watch of two groups of drive waveforms of sequential rule by mutual transmission and drive the collating time that purpose that the continuous inverse time rotation of pointer adjusts significantly shortens the dial plate pointer, effectively reduce the product power consumption, the serviceable life of improving battery.Cooperate existing stepper motor just changeing driving method, really realized the function that the free steering needle up time of electronic watch, inverse time rotate, make the moving deixis of pointer electron clock and watch pointer become feasible, changed the defective of pointer function single instruction time of information in the past, further expanded pointer electron clock and watch application prospect, the intelligent development of pointer class electronic watch has been had certain practical significance.

[embodiment]

The present invention relates to a kind of pointer electron clock step motor inversion driving method, after central controller received the indication of pointer inversion driving, controller divided two groups to transmit single inversion driving waveform by two groups of I/O mouths to step motor,

Wherein first group of drive waveforms sequential comprises:

T1 millisecond high level, wherein t1=0.1-5.1ms;

T2 millisecond low level, wherein t2=0.5-6.7ms;

T3 millisecond high level, wherein t3=1.5-10ms;

T4 millisecond low level, wherein t4=0.2-3.2ms;

And the mutual periodic waveform that changes of a high and low level, this is stated the mutual periodic waveform that changes of high and low level and comprises that S dutycycle is the periodic waveform of Ds, and wherein S=0-10, Ds=1/8-7/8.

And described second group of drive waveforms sequential comprises:

One t5 millisecond high level and the low level of all the other times, t5=1.5-10ms wherein, the t5 high level send should with the corresponding transmission of low level t2 of first appearance in first group of drive waveforms sequential.

Thus, the sequential coupling by two groups of drive waveforms can realize driving that step motor is once reversed, and if need counter-rotating stepping continuously, only two groups of drive waveforms that need mutual transmission to meet above-mentioned sequential rule can realize.

Claims

1. pointer electron clock step motor inversion driving method is characterized in that: divide two groups to transmit single inversion driving waveforms to step motor,

2. pointer electron clock step motor inversion driving method as claimed in claim 1, it is characterized in that: described first group of drive waveforms sequential comprises t1 millisecond high level, t2 millisecond low level, t3 millisecond high level, the mutual periodic waveform that changes of t4 millisecond low level and high and low level, t1=0.1-5.1ms wherein, t2=0.5-6.7ms, t3=1.5-10ms, t4=0.2-3.2ms;

Described second group of drive waveforms sequential comprises a t5 millisecond high level and the low level of all the other times, t5=1.5-10ms, and with first group of drive waveforms sequential in the corresponding transmission of low level t2 of first appearance.

3. pointer electron clock step motor inversion driving method as claimed in claim 2, it is characterized in that: the mutual periodic waveform that changes of high and low level comprises that S dutycycle is the periodic waveform of Ds in described first group of drive waveforms sequential, wherein S=0-10, Ds=1/8-7/8.