KR20080114332A - Clock for automatically correcting time error - Google Patents

Abstract

A watch automatically correcting time error is provided to receive time reset signals with the interval of 12 hours by using GPS and compare the time of the display watch and correct an error of a display watch with the interval of 12 hours automatically in case of generating the error so that exact time is maintained. A master clock portion(100) consisting of a divider(110), a master clock unit(120) and a master clock display unit(130) performs a clock function. A global positioning system portion(200) consists of a GPS antenna(210) and a GPS reset unit(220). A display watch(300) includes a photosensor and a proximity sensor. A secondary clock portion(400) consisting of a secondary clock unit(410) and a secondary clock display unit(420) performs a time clock motion. A motor control driving part(500) authorizes a motor driving output signal for timing control to the display watch in case that the time information of the master clock portion and the time information of the secondary clock portion are not same.

Description

Clock for automatically correcting time error {Clock for automatically correcting time error}

1 is a circuit block diagram of a clock for automatically correcting a time error according to the present invention;

2 is a minute hand and hour hand detection circuit diagram of the display clock according to the present invention,

3 is a schematic configuration diagram of sensing the minute and hour hands in the display clock according to the present invention.

<Description of the symbols for the main parts of the drawings>

100: mother clock 110: frequency divider

120: clock clock portion 130: clock display portion

200: GPS unit 210: GPS antenna

220: GPS reset unit 300: display clock

400: clock portion 410: clock clock portion

420: clock display unit 500: motor control drive unit

600: AC stabilization circuit portion 610: DC conversion portion

620: backup battery unit SS1: photosensor

SS2: Proximity Sensor

The present invention relates to a special clock (expression clock) such as a top clock, an exposure clock or an all-optical clock that can automatically correct the accumulated time error, and more particularly, using a GPS (satellite navigation device). Receiving a time reset signal at 12-hour intervals and automatically correcting the error of the display clock at 12 and 24 hour intervals at 12-hour intervals if an error occurs compared to the time of the current display clock. It is about a clock that automatically corrects a time error so that it always maintains an accurate time display.

Display clocks such as tower clocks, exposure clocks or all-optical clocks as well known are large clocks installed in a space where several people have a problem that damages various people using the clock when time errors occur.

In addition, if a time error actually occurs in the display clock, the task of correcting the work itself is cumbersome, but there has been a problem in that maintenance costs are separately required.

The present invention has been made under the above-described background, an object of the present invention is to receive a time reset signal at 12-hour intervals using a GPS (satellite navigation device), the present display clock (top clock, exposure clock, When the error occurs compared to the time of the all-optical clock, etc., the clock automatically corrects the error of the display clock at 12:24 hours at 12-hour intervals so that the time error is automatically corrected so that the correct time display is always maintained. Is to provide.

In order to achieve the above object, the present invention provides a divider for dividing a waveform oscillated through an oscillator, a clock clock unit clocked using a divided signal input through the divider, and an output of the clock clock unit. A mother clock unit configured to display a time by a mother clock unit to perform a clock function; GPS antenna for receiving time information from the satellite and a GPS reset unit for outputting a time reset signal to the mother clock clock at 12 and 24 hours at 12 hour intervals using time information input from the GPS antenna. GPS unit; The photo sensor and the proximity sensor provide the self clock reset signal to the self clock part at 12 and 24 hours, and the photo sensor is installed to detect the minute hand gear interlocking member interlocked with the minute hand drive gear inside the drive box. The proximity sensor may include an expression clock installed to detect an hour hand gear interlocking member interlocked with the hour hand driving gear inside the driving box; A clock clock unit which performs a time clock operation and is reset by a 12 hour and 24 hour reset signal provided at 12 hour intervals provided from the display clock and receives a 1 minute driving confirmation signal; A self-clock unit comprising a self-clock display unit for displaying the time by the output of the clock clock unit; And comparing the time information of the mother clock and the clock, and adjusting the time error generated at 12 and 24 hours at 12 hour intervals. It has a feature that includes a motor control driver for applying a.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a circuit block diagram of a clock for automatically correcting a time error according to the present invention.

As shown, the clock according to the present invention provides a reset signal using the time clock unit 100 and the time information received through the GPS at 12-hour intervals to the time clock unit 100. GPS clock 200, the display clock 300 to perform the clock function by driving the minute hand 301 and the hour hand 302 through the internal motor drive, and the current display clock 300 provided from the display clock 300 When the time information of the clock portion 400 displaying the time information and the time information of the mother clock portion 100 and the clock portion 400 does not match, and is generated at intervals of 12 hours (12 hours, 24 hours) It includes a motor control driver 500 for applying a time control motor drive output signal to the display clock 300 to correct the time error.

Reference numeral 600 denotes a stabilization circuit of the input power source AC, 610 denotes a DC converter, and 620 denotes a backup battery.

Here, the output of the AC stability circuit unit 600 is applied to the display clock 300 to supply power to the clock driving motor, the signal output through the DC converter 610 is applied to the dry unit power to each unit At the same time, the backup battery unit 620 is charged, and the clock is normally driven by the discharge of the backup battery unit 620 during a power failure.

Look at the configuration of the present invention in more detail.

First, the mother clock unit 100 clocks the clock using a frequency divider 110 for dividing a waveform oscillated through an oscillator (OSC) and a frequency divider signal input through the frequency divider 110. And a mother clock display unit 130 for displaying time by the output of the mother clock clock unit 120.

In addition, the mother watch unit 100 has a switch SW1 for fastening the time interval using the signal A generated from the divider 110 and a signal B generated from the divider 110. A switch SW2 for slowing down the time interval using the switch and a reset switch RESET for resetting the clock clock unit 120 are further included.

The GPS unit 200 uses the GPS antenna 210 to receive time information from the satellite, and the time clock input from the GPS antenna 210 at 12 hour intervals, that is, at 12 and 24 hours. GPS reset unit 220 for outputting a time reset signal to the clock unit 120.

The display clock 300 performs a clock function by the operation of a built-in clock circuit and a motor driving the same, which will be described with reference to FIG. 3.

The display clock 300 is fixed to the minute hand 301 and the hour hand 302 to the minute hand rotating shaft 303 and the hour hand rotating shaft 304 protruding toward the front of the clock drive box 310 therein, the drive box 310 ) The internal gear rotates to perform the clock function.

In addition, the display clock 300 provides the clock signal reset signal S1 to the clock portion 410 at 12 and 24 hours, which is close to the photosensor SS1 inside the driving box 310. To be provided by the sensor SS2.

That is, the photosensor (SS1) is installed to detect the minute hand gear interlocking member 307 interlocked with the minute hand drive gear 305 in the drive box 310, first, the minute hand gear interlocking member 307 is The disc consists of a 12 o'clock section of the watch.

As a result, only when the minute hand gear interlocking member 307 arrives at the 12 o'clock position, the light of the photosensor SS1 is transmitted, so that the photosensor SS1 performs a sensing operation (driving) and is detected only once every hour.

In addition, the proximity sensor (SS2) is installed to detect the hour hand gear interlocking member 308 interlocked with the hour hand driving gear 306 in the drive box 310, the hour hand gear linking member 308 also the disc The protrusion is formed on the outer circumferential surface of the 12 o'clock position of the watch.

As a result, the proximity sensor SS2 operates only when the hour hand gear interlocking member 308 arrives at the 12 o'clock position, so that the proximity sensor SS2 performs a sensing operation (switch ON) and detects only once every 12 hours. do.

The circuit configuration of the photosensor SS1 and the proximity sensor SS2 is shown in FIG. 2.

That is, one end of the proximity sensor SS2 is connected to the light emitting part of the photosensor SS1, a power supply Vcc is applied to the other end of the proximity sensor SS2, and a reset signal is output from the light receiving part output terminal of the photosensor SS1. S1 is generated so that the hour hand reaches 12 o'clock, the proximity sensor SS2 is turned on by the protrusion of the hour hand gear interlocking member 308, and the minute hand also reaches 12 o'clock, and the minute hand gear interlocking member 307 The reset signal S1 of the photosensor SS1 is generated only when the photosensor SS1 is turned on by the cutout.

The reset signal S1 is generated at 12 hours and 24 hours at 12-hour intervals. When the signal is input, the clock clock unit 410 is reset.

In addition, the display clock 300 provides a 1 minute confirmation sensor signal (S2) to the watch portion 400 through a photo sensor not shown.

Here, although the sensor for determining the position of the minute hand and the hour hand of the display clock 300 has been introduced through FIGS. 2 and 3, the configuration for determining the position of the minute hand and the hour hand can be variously designed.

The clock unit 400 performs a time clock operation and is reset by a 12 hour and 24 hour reset signal S1 provided at 12 hour intervals provided from the display clock 300, and confirms driving for 1 minute. The clock clock unit 410 receives a signal S2 and the clock display unit 420 displays the time by the output of the clock clock unit 410.

In addition, the clock 400 has a switch (SW3) to fest the time interval using the signal (A) generated from the frequency divider 110 (fest) and the signal (B) generated from the frequency divider 110 It further includes a switch (SW4) for slowing down the time interval using ().

The motor driving control unit 500 is an output control means for forcibly driving a drive motor built in the display clock 300 to physically correct the time clock. Compare the time information output from the time information and the time information output from the clock clock unit 410, if the time of the clock clock unit 410 does not coincide with the time of the mother clock clock unit 120 time The display clock 300 drive motor output for error correction.

That is, the motor control driving unit 500 may check the time information provided through the mother clock unit 100 at intervals of 12 hours at 11:59:58 seconds and 23:59:58 seconds, two seconds before 12 o'clock. Detects and compares the time information provided in 400). At this time, if the time coincides with each other, no output is performed, but if an error occurs in each other's time, the motor drive corrects the time of the display clock 300 to 12 o'clock or 24 o'clock according to the 12 o'clock or 24 o'clock. Will do the output. As a result, the error correction is performed and completed two seconds before the 12 o'clock or 24 o'clock hour.

The operation of the present invention configured as described above will be described.

First, when power is applied to the clock device, the display clock 300 performs the clock function by driving the built-in motor.

In addition, the mother clock unit 120 of the mother clock unit 100 is clocked through the divider 110 to perform a clock function and at the same time the current time is displayed on the display unit 130.

And the satellite time information received through the GPS antenna 210 of the GPS unit 200 is transmitted to the GPS reset unit 220, the GPS reset unit 220 is 12 hours every 12 hours, 24 hours The reset signal is inputted to the mother clock unit 120 at a right time.

Therefore, at 12 o'clock and 24 o'clock, the time clock part 120 is reset, and performs the clock function again. Thus, the time clock part 100 always displays the correct time according to the satellite time information.

On the other hand, the display clock 300 outputs a 12-hour, 24-hour reset signal (S1) to the clock clock unit 410 through the built-in photosensor (SS1) and proximity sensor (SS2), the clock clock unit 410 is reset at 12 o'clock and 24 o'clock, thereby accurately displaying and clocking the current time of the display clock 300.

In such a state, the motor drive control unit 500 records the time information provided through the mother-watch unit 100 at 12:59 hours at 11:59:58 seconds and 23:59:58 seconds, two seconds before 12 o'clock. Detect and compare the time information provided from the self-watch unit 400.

At this time, if the time output from the clock clock unit 410 is different from the time output from the clock clock unit 120, time error correction at 12 o'clock and 24 o'clock, which is 2 seconds from the time point at which the time is detected and compared. In order to perform the drive motor output to the display clock 300.

Therefore, the time clock correction operation of the display clock 300 is performed to correct the time at the same time as the mother clock unit 100.

As described above, the present invention receives a time reset signal at 12-hour intervals using a GPS (satellite navigation device), and compares the time with a current display clock (top clock, exposure clock, all-optical clock, etc.). When an error occurs, it automatically corrects the error of the display clock at 12 hours and 24 hours at 12-hour intervals, thereby maintaining an accurate time display at all times.

Claims (3)

A divider 110 for dividing an oscillator oscillated through an oscillator OSC, a clock clock unit 120 clocked by using a divided signal input through the divider 110, and the clock clock A main clock unit 100 configured to display a time by the output of the unit 120 to perform a clock function; Using the GPS antenna 210 to receive time information from the satellite and the time information input from the GPS antenna 210, the time clock clock unit 120 receives time signals at 12 and 24 hour intervals at 12 hour intervals. A GPS unit 200 including a GPS reset unit 220 for outputting a set signal; By the photosensor (SS1) and proximity sensor (SS2) to provide a self-clock reset signal (S1) to the watch portion 410 at 12 o'clock, 24 o'clock, the photosensor (SS1) is a drive box 310 It is installed to detect the minute hand gear interlock member 307 interlocked with the minute hand drive gear 305 therein, the proximity sensor (SS2) is hour hand interlocked with the hour hand drive gear 306 in the drive box 310 An expression clock 300 installed to detect the gear interlocking member 308; Performs a time clock operation and is reset by the 12 hour and 24 hour reset signals S1 provided at 12 hour intervals provided from the display clock 300 and receives a 1 minute driving confirmation signal S2. A clock part 400 including a clock part 410 and a clock part 420 which displays time by an output of the clock part 410; And When the time information of the mother and child part 100 and the self-timer part 400 are not matched and matched, time is displayed in the display clock 300 to correct a time error generated at 12 and 24 hour intervals at 12 hour intervals. Clock for automatically correcting the time error, characterized in that it comprises a motor control drive unit 500 for applying a motor drive output signal for adjustment. The method of claim 1, The display clock 300 has one end of the proximity sensor SS2 connected to the light emitting portion of the photosensor SS1, a power supply Vcc is applied to the other end of the proximity sensor SS2, and the photo sensor SS1 A clock for automatically correcting a time error, characterized in that configured to generate a reset signal (S1) at the output end of the light receiver. The method of claim 1, The motor driving control unit 500 compares the time information output from the clock clock unit 120 with the time information output from the clock clock unit 410, and compares the time of the clock clock unit 410 with each other. If the time does not coincide with the time of the clock clock unit 120, the output of the display clock 300 drive motor for time error correction is performed, but the time information provided through the clock (100) at intervals of 12 hours, 12 The time information provided from the clock 400 is detected and compared at 11:59:58 seconds and 23:59:58 seconds two seconds before the hour, and when the error occurs at each other's time, the 12 o'clock or 24 Clock for automatically correcting the time error, characterized in that for performing the motor drive output for correcting the time of the display time 300 to 12 or 24 hours according to the time.

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