CN1360237A - A wireless time synchronization method for clock timing - Google Patents

Abstract

The invention discloses a wireless time setting method, which uses a photoelectric element to sense the position identification points of the hour, minute and second hand gears as the time setting function of the clock to judge whether the hour, minute and second hands return to the position, and uses the hour gear to set a plurality of groups of position identification points with different widths, so that the photoelectric element can know the time when sensing the position identification points with different widths, thereby having the function of quickly finishing the position work of the hour, minute and second hands. The invention is especially suitable for the time setting work of a mechanical clock which respectively drives a second hand and a minute hand gear by two groups of motors.

Description

A wireless time synchronization method for clock timing

The invention relates to a wireless positioning method for time synchronization of a clock, in particular to a method for quickly completing the time synchronization work when the clock starts the time synchronization function.

The wireless clock (Radio Clock, R/C) can receive the standard time transmitted by the time transmitting station to perform time synchronization. The wireless clock has power-on, forced time synchronization and timing synchronization functions. Function. Power-on time synchronization is a time synchronization function activated when the power supply is installed; forced time synchronization is a time synchronization function activated by the user; regular time synchronization is a time synchronization function that is automatically activated at a specific point in time. Figure 1 shows the working principle of the current wireless clock synchronization. The receiving circuit 12 receives the time information transmitted by the transmitting station through the antenna 11 and decodes it and sends it to the processor 13 for processing. The processor 13 is responsible for controlling the operation of the overall time synchronization function. When the time synchronization function is started on the clock wirelessly, the processor 13 controls the motor to return the hour, minute and second hands to zero (12) the positioning point of zero minutes and zero seconds. Whether the hour, minute, and second hands return to the positioning point generally uses the photoelectric element 16 as a judging mechanism, and the photoelectric element 16 judging mechanism is the positioning identification point 17 set by the hour (minute, second) hand gear to judge the hour (minute) , second) whether the pin gear 18 has reached the anchor point. When the photoelectric element 16 recognizes the positioning identification point 17 of the hour (minute, second) hand gear 18, it means that the corresponding hour (minute, second) has returned to the zero positioning point (see FIG. 2). For the hour, minute and second hand rotation of the mechanical wireless clock, if a rotor is used to drive the second hand gear, the second hand gear drives the minute hand gear through the reduction gear, and the minute hand gear drives the hour hand gear through the reduction gear. It will take a long time to return the hour, minute and second hands to the anchor point. For example, assuming that the time synchronization function is activated at one o'clock, when the photoelectric element recognizes the position identification point of the hour hand gear, the corresponding second hand must circle 660 times to sense the position identification point of the hour hand. In order to solve the time-consuming problem of returning the second hand to the positioning point, the mechanical wireless clock often uses two sets of motors to drive the second and minute hand gears respectively (please refer to Figure 1), the motor 14 drives the second hand gear, and the other motor 15 drives the second hand gear. The hour and minute hand gears make the second hand gear independent of the minute and hour hand gears without interlocking relationship. Please cooperate with that shown in Figure 2, the minute gear 19 drives the hour gear 18 via the reduction gear (not shown), and the hour gear is provided with a positioning identification point 17. When the photoelectric element 16 senses the positioning identification point 17, the corresponding The hour and minute hands return to the positioning point (that is, the 12 o'clock position). Similarly, the second hand gear is also provided with a positioning identification point, so that another photoelectric element correspondingly arranged can judge whether it has returned to the positioning point. In this way, assuming that the time synchronization function is started at 1:00:00, the second hand gear makes a circle to allow the photoelectric element to sense its positioning identification point, so that the second hand stops at the zero (12) position. But when the positioning identification point 17 of the hour hand allows the photoelectric element 16 to sense, its minute hand gear 19 still has to go around eleven circles to sense, so that the hour and minute hands stop at zero (12), although compared to the aforementioned Although the power-on and forced time synchronization methods have greatly saved the positioning time of the hour, minute and second hands, it still takes a considerable amount of time.

The purpose of the present invention is to provide a wireless time synchronization method for clocks that can quickly complete the positioning action of the hour, minute and second hands.

The technical solution to solve the object of the present invention is as follows: the wireless timing method for clock timing is characterized in that it uses a photoelectric element to sense the positioning identification points of the hour, minute, and second hand gears, and starts the timing as the clock. function, to judge whether the hour, minute, and second hands are in position, and at the same time use the hour hand gear to set multiple sets of positioning identification points with different widths, so that the photoelectric element can know the corresponding positioning identification points when sensing these positioning identification points of different widths. What is the time, so as to quickly complete the positioning and timing method of the hour, minute, and second hands.

Compared with the prior art, the present invention has the function of quickly completing the positioning and time setting of the hour, minute and second hands, which can greatly save the time for time setting.

The present invention is described in detail below by means of drawings and examples.

Fig. 1 is a pivot diagram of the working principle of the positioning mechanism of the existing wireless clock time synchronization.

FIG. 2 is a schematic diagram of an existing wireless clock using photoelectric elements to detect whether the gears of the hour, minute, and second have returned to the positioning point.

3A is a schematic diagram of the mechanical structure of the wireless clock of the present invention; FIG. 3B is a schematic diagram of the wireless clock of the present invention using a photoelectric element to sense the hour, minute and second gears.

FIG. 4 is a schematic diagram of a method for wirelessly sensing the hour, minute, and second gears of the clock through a photoelectric element according to the present invention.

Referring to FIG. 3A , it is a schematic diagram of the mechanical structure of the wireless pair clock of the present invention. Comprising hour, minute and second hand gears 31, 32, 33, it utilizes two sets of motors 34, 35 to drive the second and minute hand gears respectively. The motor 34 drives the second hand gear, the motor 35 drives the minute hand gear, and the minute hand gear drives the hour hand gear 31 via the reduction gear 37 .

It can be clearly seen from the schematic diagram of FIG. 3B that the wireless clock of the present invention utilizes a photoelectric element 38 to sense the positioning identification points 311, 321, and 331 of the hour, minute, and second hand gears, which are used to judge the hour, minute, and second hands when the time synchronization function is activated. Whether the gear is homed to the anchor point. In order to shorten the time for the hour, minute, and second hands to return to the positioning point, the present invention utilizes the hour hand gear 31 to set multiple sets (take 3 sets as an example) of equal positioning identification points 311, 312, 313 (see FIG. 4 ), when the photoelectric element 38 senses the positioning identification point 311, its corresponding hour hand is at the 12 o'clock position; when the photoelectric element senses the positioning identification point 312, its corresponding hour hand is at the 4 o'clock position; when the photoelectric element senses the When positioning the identification point 313, its corresponding hour hand is at the 8 o'clock position. By using the different widths of the three groups of positioning identification points 311, 312, and 313, the photoelectric element can know which time point it is when sensing one of the positioning identification points. For example, assume that the photoelectric element 38 includes a receiver. The photoelectric element 38 is used to emit light to the receiver. If the receiver receives the light path emitted by the photoelectric element 38, it will maintain a potential (assumed to be a high potential). When the optical path of the photoelectric element 38 is put into the receiver, the photoelectric element turns to a low potential. In this way, it can be known when the current sensing location identification point is based on different sensing times (light-shielding time) In this way, the wireless clock of the present invention allows the minute hand gear to circle around at most to complete the positioning of the hour, minute, and second hands, thereby greatly shortening the positioning time course. For example, if the time-setting function is activated at one o’clock, the photoelectric element starts to act. At this moment, the processor starts to detect whether the positioning identification points of the hour, minute, and second gears are sensed by the photoelectric element. If not, the second hand starts to rotate. The second wheel circles once (assuming that the second hand starts from the 12 o'clock position) and its positioning identification point can be sensed by the photoelectric element. At this time, the processor stops the motor operation, and the second hand stops at the zero (12) position. As for the hour and minute hands When the minute hand gear circles three times, the positioning identification point 312 of the hour hand gear is sensed by the photoelectric element, and its processor stops the motor operation, so that the minute hand stops at zero (12), and the hour hand stops at 4 o’clock. Afterwards, when the processor waits for the received time point message to be zero, it immediately starts the motor to synchronize the second hand with the reference time. During this time, the processor controls the motor to point the hour and minute hands to the time point received by the processor. The hour and minute points of the message, and complete the work of time synchronization, and then the hour, minute, and second hands operate normally like ordinary clocks. Thereby, when the present invention wirelessly activates the time synchronization function for the clock, the hour and minute hands can move to the positioning point at most to let the minute hand gear move four times (if the start time is 12, 8 or 4 o'clock), compared with the existing wireless For the clock, the time for time synchronization can be greatly saved.

FIG. 4 is a schematic diagram of a method for wirelessly sensing the hour, minute, and second gears of the clock through a photoelectric element according to the present invention. As can be clearly seen from this figure, when the present invention utilizes a photoelectric element to do the time-setting work of the hour, minute, and second hand gears, the mode of sensing the hour and minute-second gears one by one is adopted, that is, the second gear 33 is rotated first. A certain distance (that is, walk for a few seconds) to give way to the sensing position of the photoelectric element 38 (please cooperate with the picture shown), at this time the hour and minute hand motor starts to drive the minute hand gear 32, and the photoelectric element 38 begins to sense the hour and minute gears 31, 32 As for determining when the hour and minute gears return to the position, the photoelectric element will first sense the position identification point 311 (312/313) of the hour hand gear, and at the same time know the corresponding position by the difference in sensing time Whatever the time is, then the position recognition point 321 of the minute hand gear 32 will be sensed. When the position identification 321 of the minute hand gear 32 is sensed, the positioning of the hour and minute hand gears is completed.

For the wireless clock of the present invention, a photoelectric element is used to judge whether the hour, minute, and second hand gears have been positioned. At the same time, the hour hand gear is used to set multiple sets of positioning identification points to quickly complete the positioning work. When the time synchronization function is activated, then its The steps of the time synchronization program include: A. Start to activate the photoelectric element to sense the positioning identification point; B. Determine whether there is a positioning identification point sensed by the photoelectric element; C. If the positioning identification point is sensed in step B, the hour, minute, and second And the second hand motor continues to run; D. When the photoelectric element does not sense the positioning identification, stop the hour and minute hand motor immediately, and the second hand motor continues to run; E. Determine whether the photoelectric element has sensed the positioning identification point of the second hand gear. ; F. If step E detects the position identification of the second hand gear, then the second hand gear will walk another distance to give way to the sensing position of the photoelectric element, and then stop the second hand motor to complete the positioning of the second hand; G. When the positioning of the second hand is completed , that is, the minute hand motor runs when starting; H, the photoelectric element begins to judge the positioning identification point of the hour hand gear, and distinguishes it as the positioning identification point of the hour; I, when the determination of the positioning identification point of the hour hand gear is completed, the photoelectric element continues Judging whether the positioning identification point of the minute hand gear is sensed; J. When the photoelectric element senses the positioning identification point of the minute hand gear, that is, the minute hand motor runs when it stops, and the positioning of the hour and minute hands is completed at this time, and then the wireless clock is based on the captured The hour, minute, and second hand controls are adjusted to the position of the time point information, and continue to do the timing work.

To sum up, it should be known that the present invention has practicability, novelty and creativity, and the present invention has not been published in any publications, and it should comply with the provisions of the patent law.

However, what is described above is only a preferred embodiment of the present invention, and should not limit the implementation scope of the present invention. That is to say, all equivalent changes and modifications made within the patent scope of the present invention should fall within the scope covered by the patent of the present invention.

Claims (1)

1, a kind of being applicable to by the Radio time-setting clock setting means regularly of two groups of motors with the mechanical activation clock that drives the timely minute gear of second hand respectively, it is characterized in that it is when utilizing a photovalve with sensing, divide, the positioning identification point of second hand wheel, as this clock start to the time during function, during with judgement, divide, whether second hand returns to the location, be used in hour hand gear simultaneously the positioning identification points of organizing different in width are set more, to allow photovalve when the positioning identification point of these different in width of sensing, learn why person's time point of time corresponding, thereby when being finished fast, divide, the method of the location work of second hand, this Radio time-setting clock start to the time during function, its to the time program comprise the following step: A, begin to start photovalve sensing positioning identification point; B, judgement have or not positioning identification to be sensed by photovalve; C, if step B sense the positioning identification point, minute hand and second hand motor remain in operation in the time of then; D, when photovalve does not sense positioning identification point, stop the Hour Minute Second motor running at once, and the second hand motor remains in operation; E, judge whether photovalve senses the positioning identification point of second hand wheel; F, if step e senses the positioning identification of second hand wheel, then the second hand wheel distance of walking is again abdicated the sense position of photovalve and is promptly stopped the second hand motor running; G, finish second hand when location, minute hand motor running when promptly starting when step F; H, photovalve begin to judge the positioning identification point of hour hand gear, and distinguish its why positioning identification point of person's time point; I, when the judgement of the positioning identification point of finishing hour hand gear, this photovalve continues to judge and has or not the positioning identification point that senses minute gear; J, sense the positioning identification point of minute gear when photovalve, minute hand motor running when promptly stopping, when promptly finishing hereat, minute, second pin location, then this Radio time-setting clock is according to the time point message that is captured, with the time, the minute, second pin is controlled to the position of this anchor point, and continues to do timework.

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