CN2171129Y - Digital stopwatch with memory and frenquency measuring function - Google Patents

Abstract

The utility model relates to a digital stopwatch with memory and frequency measuring function. The rear face of a liquid display screen 7 is contacted with a printed circuit board assembly 5, the assembly 5 is provided with a special large scale integrated circuit 51, the ROM of the special large scale integrated circuit 51 is solidified with a software program specially programmed, and the software program controls the operation of a CPU in the 51 and makes the liquid display screen 7 present character display in three rows through a liquid crystal display driver in the 51. The digital stopwatch comprises five modes: A, normal timing mode; B, alarm time mode, two set times can be simultaneously displayed and memorized; C, stopwatch timing mode, the timing time in each ring and multi-ring cumulative time can be displayed and memorized; D, timer inverse timing mode; E, paddling frequency measuring or industrial rated measuring mode. Compared with prior art, the utility model has the advantage of complete function and has the unique frequency measuring function, and the prior memory and data can be observed when in operation.

Description

Digital stopwatch with memory and frenquency measuring function

The utility model relates to the electronic digit time set, particularly relates to the liquid crystal display stopwatch with memory and frequency measurement function.

The various stopwatches of prior art, the temporal information that shows when often normally not walking or show is incomplete.When being used for the manual time-keeping state, then can not dynamically read the data of having stored, thereby use very not convenient.

The purpose of this utility model is to avoid above-mentioned the deficiencies in the prior art part and a kind of have more extensive timing, memory and frequency measurement function is provided, and reads liquid crystal display stopwatch very easily.

The purpose of this utility model can reach by following measure: make a kind of digital stopwatch with memory and frequency measurement function, comprise housing and sticking table mirror thereon; The display surface of LCDs is close to table mirror inner face, the back side of display screen is by printed circuit-board assembly, special-purpose large scale integrated circuit is arranged on the assembly, be solidified with the software program of special establishment in the read only memory ROM in the circuit, it is controlling central processing unit CPU operation in the circuit, and makes LCDs present three composing symbol demonstrations by LCD driver in the circuit; Pin SEGO～SEG39, the COMO～COM3 of integrated circuit are connected to display screen, pin R10(BZ) is connected to transistor base control piezoelectric crystal acoustical generator sounding through a resistance, it is luminous that pin R11 is connected to another transistor base control pilot lamp through a resistance, and pin OSC1, OSC2 connect quartz crystal; The demonstration of display screen, look different the order, various combination of operation each side button and face button and various modes is arranged:

Pattern when A. normally walking, time and what day symbol of setting up type show, another row is month and date, also have row's demonstration sign morning and afternoon and the time, minute, second;

B. the temporal mode that ring to make a noise shows simultaneously and remembers two setting-up times, then rings and makes a noise; Wherein a row shows that first sounds makes a noise the time, and another row shows that second sounds makes a noise time, again one arrange when demonstration is current to be walked morning and afternoon sign and the time, minute, second;

C. manual time-keeping pattern, one composing symbol shows that previous (being that each the comes and goes during swimming) accumulated time of respectively enclosing added the timing time of current circle, another row shows the timing time of current circle, shows the ordinal number of which circle simultaneously, and the total time after a row shows the timing mode startup is arranged again;

D. timer countdown pattern, the symbol of setting up type shows the countdown number of times, another row's display setting time the time, minute, second, have again that a row shows when the countdown operation was remaining at that time, minute, second;

E. strike frequency measurement or industry quota quantitative model, one set up type symbol show strike for three times or during the timing of quota operation, minute, second and a few percent second, another row shows 8 hours and strikes or the quota number of operations have a row to show that per minute is struck or the quota number of operations again.

The drawing of accompanying drawing is described as follows:

Fig. 1 is the decomposition texture synoptic diagram of the utility model digital stopwatch;

Fig. 2 is the internal logic block diagram of used large scale integrated circuit 51 on the printed circuit-board assembly 5 of the utility model digital stopwatch;

Fig. 3 is the aerial lug figure of used large scale integrated circuit 51 on the printed circuit-board assembly 5;

Fig. 4 is that the character of LCDs 7 state when normally walking of the utility model digital stopwatch shows;

Fig. 5 is that LCDs 7 shows at the character that rings the temporal mode that makes a noise;

Fig. 6 is that LCDs 7 shows at the character of manual time-keeping pattern;

Fig. 7 is that LCDs 7 shows at the character of timer countdown pattern;

Fig. 8 is that LCDs 7 shows at the character of strike frequency measurement or industry quota quantitative model;

Fig. 9-1 is to Fig. 9-the 10th, the process flow diagram of the used software program of the utility model digital stopwatch.

Be described in further detail below in conjunction with the most preferred embodiment shown in the accompanying drawing: digital stopwatch of the present utility model is controlled with microprocessor, thereby has memory and frequency measurement function.As shown in Figure 1, this digital stopwatch comprises housing 13 and sticking table mirror 10 thereon; The display surface of LCDs 7 is close to table mirror 10 inner faces, and the back side of display screen 7 is by printed circuit-board assembly 5.On Fig. 1, described digital stopwatch also comprise housing assembling screw 1, lower casing 2, battery anode slice 3, battery 4, conductive adhesive tape 6, side button 8, side button handle 9, table mirror 10, face button 11, face button handle 12, rope 14 and sling 15.The used large scale integrated circuit 51 of the utility model digital stopwatch is arranged on the printed circuit-board assembly 5, include microprocessor, storer etc. in it, see the internal logic block diagram of this integrated circuit of Fig. 2.Be solidified with the software program of special establishment among the ROM in the circuit 51, it is controlling 51 interior CPU operations, and makes LCDs 7 be three composing symbol demonstrations by 51 interior LCD driver.Fig. 3 is this integrated circuit aerial lug figure.Pin SEGO～SEG39, the COMO～COM3 of circuit 51 are connected to display screen 7, pin R10(BZ) is connected to transistor base control piezoelectric crystal acoustical generator sounding through a resistance, it is luminous that pin R11 is connected to another transistor base control pilot lamp through a resistance, and pin OSC1, OSC2 connect quartz crystal.Large scale integrated circuit 51 is that semi-conductor chip manufacturing plant aims at the manual time-keeping device and manufactures and designs, and can buy on market, no longer superfluous here chatting.

Fig. 9-1 provides the process flow diagram of the used whole softwares of the utility model digital stopwatch to 9-10.The operation of described stopwatch in these software controls, makes it to have not available memory function of common stopwatch and frequency measurement function.The operation of described stopwatch is looked the different order, various combination of operation each side button (S1, S2) and face button (S3, S4) and five kinds of patterns is arranged:

At first be pattern when normally walking, 12 hours systems or 24 hours systems show optional, comprise that three symbols of setting up type show, see Fig. 4.Time and what day its first row show, the latter uses english abbreviation always and represents.Second row shows month and date, if the 3rd row's demonstration sign A M morning and afternoon or PM(select 12 hours systems), with timely, minute, second.

Next is the temporal mode that ring to make a noise, and shows simultaneously and remembers two setting-up times, then rings and makes a noise.Comprise that also three composing symbols show, see Fig. 5.Wherein the row of going up shows that first sound makes a noise the time, has sign A 1; Middle row shows that second sound makes a noise the time, has sign A 2; If when following row shows current walk morning and afternoon sign A M or PM(select 12 hours systems), with timely, minute, second.Every day, locking twice, and ringing makes a noise continues 20 seconds.When locking works, corresponding A1 or A2 flicker, or all glimmer.Also can cancel the sound of having set and make a noise, need only ring the temporal mode that makes a noise by side button 8(Fig. 1) (being designated as S1) cancellation A2 locking, or by opposite side button (being designated as S2) cancellation A1 locking.

The manual time-keeping of being pattern is arranged again, be used for the sports events timing, show and remember every circle (during swimming be each come and go) timing time and multi-turn accumulated time.Comprise that three composing symbols show, see Fig. 6.Wherein the row's of going up demonstration was before respectively enclosed the timing time that accumulated time adds current circle, and sign SPLiT is arranged; Middle row shows the timing time of current circle, the ordinal number of while show label LAP and which circle, for example { 2 }; Time and sign CHRONO when following row shows total after timing mode starts.Initial value three row's demonstrations are zero.Press the S1 button once, following row CHRONO picks up counting, and presses the S2 button once, on arrange SPLiT and middle row LAP and show the first lap timing time; Press the S2 button more once, on arrange SPLiT and middle row LAP and show the second circle timing time, repeat button by S2, continue to show the 3rd, 4 ... up to the 19th circle timing time.In row LAP represent timing time to every circle, on arrange SPLIT represent N(N=1,2 ..., 19) and the former multi-turn accumulated time of circle.Press the S1 button more once, described stopwatch stops timing, by left side button 11(Fig. 1) (being designated as S4), enter and read to store remember condition, the number of turns and the average lap time of display screen 7 displayed record, and sign A V is arranged.By right side button (being designated as S3) once, the averaging time of the number of turns of displayed record and last three circles, show label is L3--AV.Press the S3 button more once, then show the ordinal sum timing time of that circle of best result, show label is b-LAP.Also can press the S4 button earlier and press the S3 button again, show the time of memory, thereby have so-called function of dynamically reading to store memory, this arranges CHRONO at present still in timing.

Then also have timer countdown pattern, show and the memory setting-up time, show countdown process and number of times, see Fig. 7.Press the S3 button to the timer pattern, initial value is zero entirely.Press S4, S2, S1 button successively, set the countdown time, in the display screen 7 row and arrange down display setting time all the time, minute, second.Begin countdown by the S1 button, 7 times rows of display screen show when the countdown operation was remaining at that time, minute, second.Wait countdown to zero, ring 15 seconds of making a noise, row's numeral increases by 1 on the display 7, shows the countdown number of times, and sign TR is arranged.

Be strike frequency measurement or industry quota quantitative model at last.Begin by the S1 button, strike for three times or the quota EO stops timing by the S1 button again.See Fig. 8, display screen 7 times row show strike for these three times or during the timing of quota operation, minute, second and a few percent second.Row shows according to striking for three times or quota is operated and struck or the quota number of operations its port markers " 8 " expression 8 hours in 8 hours that required time calculates in the display screen 7.The going up row and show it is of display screen 7 according to striking for three times or quota is operated the per minute that required time calculates and struck or the quota number of operations, wherein "-" represents radix point, " b3 " is the frequency measurement sign of striking, it is meaningless that " E " represents that then this row shows, for example the timing time of three times or quota operation was above 30 minutes.

Compare with prior art, the advantage of the utility model digital stopwatch is: use the software program of special-purpose large scale integrated circuit and special establishment, make it multiple functional. It is not only made stopwatch and uses, but also as normal timing, also can dynamically read the data of having stored, and in frequency measurement or the industry measurement pattern of striking, and can automatically calculate strike number of times or the quota number of operations of per minute and 8 hours, very is convenient.

Claims (2)

1, has the memory and the digital stopwatch of frequency measurement function, comprise housing (13) and glue thereon table mirror (10); The display surface of LCDs (7) is close to table mirror (10) inner face, and there is special-purpose large scale integrated circuit (51) at the back side of display screen (7) by printed circuit-board assembly (5) on the assembly (5); Described digital stopwatch is characterised in that: be solidified with the software program of special establishment among the ROM in the integrated circuit (51), it is controlling (51) interior CPU operation, and makes LCDs (7) present three composing symbol demonstrations by (51) interior LCD driver; Pin SEGO～SEG39, the COMO～COM3 of integrated circuit (51) is connected to display screen (7), pin R10 (BZ) is connected to transistor base control piezoelectric crystal acoustical generator sounding through a resistance, it is luminous that pin R11 is connected to another transistor base control pilot lamp through a resistance, and pin OSC1, OSC2 connect quartz crystal; The demonstration of display screen (7), look the different order, various combination of operation each side button (S1, S2) and face button (S3, S4) and various modes is arranged:

Pattern when A. normally walking, time and what day symbol of setting up type show, another row is month and date, also have a row show sign morning and afternoon (if selecting make in 12 hours) and the time, minute, second;

B. the temporal mode that ring to make a noise shows simultaneously and remembers two setting-up times, then rings and makes a noise; Wherein a row shows that first sounds makes a noise the time, and sign A 1 is arranged, and another row shows that second sounds makes a noise time, and sign A 2 is arranged, have again one arrange when demonstration is current to be walked morning and afternoon sign and the time, minute, second;

C. manual time-keeping pattern, one composing symbol shows that previous (being that each the comes and goes during swimming) accumulated time of respectively enclosing added the timing time of current circle, sign SPLIT is arranged, another row shows the timing time of current circle, the ordinal number of while show label LAP and which circle, for example { 2} has the total time after row's demonstration timing mode starts again and sign CRONO is arranged;

D. timer countdown pattern, the symbol of setting up type shows the countdown number of times, and sign TR is arranged, another row's display setting time the time, minute, second, have again that a row shows when the countdown operation was remaining at that time, minute, second;

E. strike frequency measurement or industry quota quantitative model, one set up type symbol show strike for three times or during the timing of quota operation, minute, second and a few percent second, another row shows 8 hours and strikes or the quota number of operations, its port markers " 8 " expression 8 hours, there is a row to show that per minute is struck or the quota number of operations again, wherein "-" represents radix point, and " b3 " is the frequency measurement sign of striking, and it is meaningless that " E " represents that then this row shows.

2, according to the described digital stopwatch of claim 1 with memory and frequency measurement function, it is characterized in that: described C. manual time-keeping pattern, after it stops timing, read to store remember condition if enter, the number of turns and the average lap time of display screen (7) displayed record, and sign A V is arranged; If the averaging time of the number of turns of displayed record and last three circles, then show label is L3-AV; If show the ordinal sum timing time of that circle of best result, show label is exactly b-LAP; In the situation of dynamically reading to store memory, display screen (7) has that row of sign CRONO to continue timing and shows.

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