CN1044645C

CN1044645C - Preset percentage counting clock and watch

Info

Publication number: CN1044645C
Application number: CN 95107928
Authority: CN
Inventors: 王坤
Original assignee: Individual
Current assignee: Individual
Priority date: 1994-11-18
Filing date: 1995-08-09
Publication date: 1999-08-11
Anticipated expiration: 2015-08-09
Also published as: CN1121195A

Abstract

The present invention relates to a presetting percentage statistic clock which comprises a shell body, a chip and a press key. The present invention is characterized in that an oscillator generating oscillation signals outputs specific clock pulses through a frequency dividing circuit; a presetting subtractive counter carries out subtraction counting to the clock pulses according to time number preset by a dial switch; the output pulses of the presetting subtractive counter are sent to a display device for being displayed; one circle of scales of a dial plate is provided with 100 grids; each grid reading number of a pointer is 1/100 second, 1/100 minute or 1/100 hour of preset time N.The percentage statistic clock of the present invention can also be used as general timing clocks, counting down clocks, stopwatches, etc.

Description

But the percentage counting clock and watch of preset time

The present invention relates to clock field, but relate in particular to a kind of percentage counting clock and watch of being added up the preset time of timing the time spent in the timing range.

After clock and watch inventions, just people's timing has had the hour as foundation, if the time of wondering how long have, just must deduct the initial moment constantly with ending, in reality, in case when this two moment of front and back were not whole hours, the length of time thickened at once.Therefore, get used to during people's setting-up time setting by the whole hour.On the other hand, along with the development of society, aspect things such as various abilities such as operating rate, people, incident process are all being weighed with the time.And utilize with the time and to be tending towards more and more thinner.People to the needs that distribute the time make directly pick the time period more and more reality that is to say that the distribution of timing statistics and operating position more and more come into one's own.As everyone knows, number percent is one of familiar, the most the most frequently used statistical method of people.But seldom be used in the timing field, such as a job that limits two hours, usually nobody notices that 36 minutes time spent is 30% of whole timing, and so-called " having spent for 80% time " referred to 1 hour 36 minutes, this is because present clock and watch can not provide this layer information, and wonder must be through calculating.But in the modern society, the practice of limiting time and occasion have been ubiquitous, and people always wish to understand full detail, and consider have a kind of clock and watch that can show above-mentioned temporal information at any time for this reason.

But the purpose of this invention is to provide a kind of percentage counting clock and watch that can in acquisition setting-up time section, carry out the preset time of percentage counting to the number percent situation of change of time spent.

But according to the percentage counting clock and watch of preset time of the present invention, comprise housing, button, with the oscillator that is connected successively, frequency dividing circuit, drive system and display device, it is characterized in that: described oscillator produces at least a oscillator signal; Described frequency dividing circuit after receiving the outputting oscillation signal of described oscillator, produces specific clock pulse signal; Also has a down counter that can preset, count N according to the time that plucking number sign switch preset, described specific clock pulse signal from described frequency dividing circuit output is carried out the subtraction counting, and count pulse of centesimal time output of N with every interval preset time; Described display device is shown described output pulse of presetting down counter.

More particularly, but the percentage counting clock and watch of preset time of the present invention is to make display device all only rotate a circle in the time period of setting arbitrarily.Being carved with on the demonstration plate of 100 evenly divideds of 1-100 numeral or the dial plate at periphery simultaneously and beating 100 times, just shown the number percent statistical value of interior time spent of this setting-up time like this, is countdown if read excess time.For this reason, produce at least a oscillator signal by quartzy high frequency oscillator, produce specific time clock by frequency dividing circuit, the cycle can be more than one of 1/100 second, 1/100 minute or 1/100 hour.This time clock is exported to next stage can preset number (time), as N minute, just every pulse of output in N/100 minute, and makes 100 pulses of output in N minute.This pulse can directly be given liquid crystal indicator and be shown.The clock and watch treatment circuit is exported in perhaps such pulse, and output signal drives the clock and watch stepper motor again, is that the transmission of 50: 1 gear train makes pointer rotate by the speed of N/100 minute lattice at last by reduction gear ratio.The time that pointer rotates on the dial plate that 100 lattices such as grade are arranged is N minute, also can be N second or N hour.In addition, a two-stage counting feedback circuit can also be arranged behind the down counter that can preset, to the cycle is the step-by-step counting of N/100 (second, branch, time), when counting 100 pulses, this down counter is quit work, at this moment, referring to that clock is finished one-period also is parked in after (turning around) on the terminal point as starting point.

According to technique scheme of the present invention, what clock and watch showed is the statistical value of the number percent of a kind of time, and for example predetermined the answering of operation was finished in 30 minutes, at this moment preset and turned around in 30 minutes, if finished in 15 minutes, the time spent has only been walked half-turn so, and promptly only having used 50% of the schedule time is 150%.These clock and watch are read excess time, can be used as countdown.In addition, also have as ordinary clock and watch or stopwatch.

Fig. 1 is a timepiece circuit block diagram of the present invention.

Fig. 2 is the concrete circuit diagram of the embodiment of clock and watch of the present invention.

Fig. 3 is the gear train synoptic diagram in the timepiece display apparatus of the present invention.

Fig. 4 is the typical dial plate in the timepiece display apparatus of the present invention.

Below in conjunction with accompanying drawing, describe embodiments of the invention in detail.

Fig. 1 is a schematic block circuit diagram of the present invention.Circuit comprises that an oscillator (I 1) produces at least a oscillator signal in this block diagram; A frequency dividing circuit (I 2) produces specific clock pulse signal after receiving the output signal of oscillator; One can be preset down counter (II); The number that is preset according to the BCD toggle switch i.e. the time, carries out the subtraction counting to the time clock of coming self frequency-dividing circuit output, and the result exports a pulse with one of percentage of scheduled time at interval; Preset the output pulse of down counter (II) and can directly be sent to display device, for example the clock and watch liquid crystal indicator is shown.On the other hand, also the output pulse of presetting down counter (II) can be delivered to clock and watch treatment circuit (III), its output burst pulse is given drive system model, drives dial indicator display device again.Meanwhile, percentage counting clock and watch of the present invention also is provided with a counting feedback circuit (IV), preset the pulse of down counter (II) output with its record, when preset time arrives, output pulse signal makes and presets down counter (II) and quit work, and at this moment pointer is finished also to stop at behind the circle and then shown 00 as liquid crystal indicator on the terminal point of starting point.

Fig. 2 is the concrete circuit diagram of the embodiment of clock and watch of the present invention.Dotted line among the figure (I) institute frame partly is oscillator and frequency dividing circuit figure.C ₁, C ₂And C ₃Be respectively that frequency is the quartz vibrator of 52428800hz, 872815hz and 145836hz, pass through K switch ₁, K ₂And K ₃Be connected with 19 grades of following frequency dividing circuits.The pin Q5 output terminal of the integrated circuit 4024 of frequency dividing circuit can obtain 1/100 second, 1/100 minute, 1/100 hour time pulse respectively.The part of dotted line (II) institute frame is a kind of down counter that presets.4522 pairs of above-mentioned time pulses of this down counter that can preset carry out the subtraction counting.K switch ₄Be connected between frequency dividing circuit output terminal Q5 and the down counter input end CKL, as the clock and watch main switch.Have for every grade 4522 and put several BCD toggle switchs.The output terminal " 0 " that end PE connects together and receives lowest order 4522 is counted in putting of each grade 4522.When counter is kept to " 0 " entirely at every turn, when exporting a high level, make PE=" 1 ", realize putting automatically number, so just cycle count of counter.Above the pulse of said down counter output can directly deliver to LCD and shown, and the circuit of dotted line (III) institute frame comprises IC4528,4027,4011, the 4049th, for the treatment circuit of similar pointer quartz clock, by two monostalbe triggers 4528, form burst pulse, again through the 4027 and 4011 time change circuit that constitute, again it is become the drive signal that alternately produces high level at ends A and B, drive the clock and watch stepper motor.It by reduction gear ratio 50: 1 gear train to stepping motor rotor, wherein

label

1,2,3 and 4 is gears, mark 5 and 6 be respectively the rotor of stepper motor and pointer as shown in Figure 3, drive pointer and rotate with N/100 second, N/100 minute or N/100 hour lattice.

In addition, pass through K switch ₅, 4017 pairs 4522 pulses of exporting of two-stage of the counting feedback circuit of dotted line (IV) institute frame are counted.The 2nd grade 4017 output terminal is received the cpe end of lowest order 4522, has only after two-stage 4017 count down to 100 pulses, just can export a pulse and give cpe end, and when CPE=" 1 ", counter 4522 stops counting.This moment, after indicator is covered and is stopped behind 100 lattice also on the terminal point as starting point.In addition, work as K switch ₅During disconnection, 4017 do not work, 4522 continuous counters then, and promptly pointer is the continuous timing of a circle with preset time.If this moment, this is timing easily in conjunction with dial plate is carried out the N five equilibrium.Fig. 4 is a kind of dial plate that typically carries out 100 evenly divideds.If preset time is made as 180 minutes (3 hours), dial plate has scale in third-class office, and so, what indicator turned around 1/3rd is 1 hour, and turning around is 3 hours, changes for 8 weeks in one day, equally can timing.There is the scale too can timing similarly at the quartern, six five equilibriums, eight equal parts place.In addition, if pointer reverses, what then read from dial plate is excess time, promptly is countdown.

Claims

1, but a kind of percentage counting clock and watch of preset time comprises housing, button, with the oscillator that is connected successively, frequency dividing circuit, drive system and display device, it is characterized in that:

Described oscillator produces at least a oscillator signal;

Described frequency dividing circuit after receiving the outputting oscillation signal of described oscillator, produces specific clock pulse signal;

Also has a down counter that can preset, count N according to the time that plucking number sign switch preset, described specific clock pulse signal from described frequency dividing circuit output is carried out the subtraction counting, and count pulse of centesimal time output of N with every interval preset time;

Described display device is shown described output pulse of presetting down counter.

2, according to the percentage counting clock and watch of claim 1, it is characterized in that: also have a said counting feedback circuit that presets down counter output pulse of record, when preset time arrived, output pulse signal quit work the said down counter that presets.

3, according to the percentage counting clock and watch of claim 1 or 2, it is characterized in that: the cycle of said specific clock pulse signal is more than one in 1/100 second, 1/100 minute or 1/100 hour.

4, according to the percentage counting clock and watch of claim 1 or 2, it is characterized in that: said display device is a LCD.

5, according to the percentage counting clock and watch of claim 1 or 2, it is characterized in that: saidly preset down counter output pulse and send into the clock and watch treatment circuit, produce the output burst pulse and deliver to drive system, drive said display device by drive system and show the moment of being added up.

6, according to the percentage counting clock and watch of claim 5, it is characterized in that: said drive system is the gear train that is driven by the clock and watch motor, and its reduction gear ratio is 50: 1.

7, according to the percentage counting clock and watch of claim 5, it is characterized in that: dial scale one circle of said display device is the dial indicator display device of 100 lattices.

8, according to the percentage counting clock and watch of claim 6, it is characterized in that: dial scale one circle of said display device is the dial indicator display device of 100 lattices.