JPS621236B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a program timer that generates a predetermined output at a preset time, so that the predetermined output appears at a predetermined time each week on a prespecified day of the week and on other days of the week. The purpose is to

Generally, a program timer is known that is configured to specify one day of the week and output a predetermined output at a certain time on that day. However, recently, many companies and government offices have adopted a two-day work week, so the program timer described above is not necessarily sufficient considering the actual living conditions.

In view of such problems, the present invention provides a first time (for example, 8 a.m.) set in advance every Saturday and Sunday, and a first time set in advance (e.g., 8 a.m.) every Saturday and Sunday, and a preset time at 5 a.m. from Monday to Friday.
The purpose of the present invention is to provide an excellent programmable timer that generates a predetermined output at a second time (for example, 7 a.m.) that is different from a preset first time.

DESCRIPTION OF THE PREFERRED EMBODIMENTS The program timer of the present invention will be described below with reference to drawings of one embodiment. FIG. 1 is a block diagram of one embodiment of the program timer of the present invention. In the figure, 1 is a reference signal generation source consisting of a crystal oscillator or a commercial power supply, etc., and 2 is a block diagram of a reference signal generation source 1 that generates a signal for 1 second. A frequency divider that divides the frequency into periodic time pulses; 3 is a counter for hours, minutes, and seconds that counts the 1-second period time pulses obtained by the frequency divider 2; 4 is a counter for hours, minutes, and seconds obtained by the counter 3; 5 is a switching circuit whose input is the output of each of counters 3 and 4; 6 is an input to each of counters 3 and 4 via switching circuit 5; A display drive circuit 7 is driven by the output of the display drive circuit 6.
A liquid crystal display, a fluorescent display tube _, and _other digital displays are driven by the output of A time setting circuit driven by operating S ₃ , S ₄ , hour switch S ₅ , minute switch S ₆ , etc.;
Reference numerals 9 and 10 indicate a day of the week memory and an hour/minute memory for respectively storing the day of the week, hour, and minute set by the time setting circuit 8. Reference numeral 11 compares the output of the day of the week counter 4 with the output of the day of the week memory 9, and compares the output of the day of the week counter 4 with the output of the day of the week memory 9. a day-of-the-week comparison circuit that generates a predetermined output when they match; 12 is an hour-minute comparison circuit that compares the output of the hour-minute-second counter 3 with the output of the hour-minute memory 10 and generates a predetermined output when the two match; 13 is an AND circuit which receives the output of the day of the week comparison circuit 11 and the output of the hour/minute comparison circuit 12; 14 is a control signal generation circuit driven by the output of the AND circuit 13; and 15 is an AND circuit of the control signal generation circuit 14. an AND circuit whose inputs are the output and the output of the hour minute second counter 3;
Reference numeral 16 denotes a counter for setting a control signal stop time for regulating the connection time of the control signal driven by the output of the AND circuit 15 and appearing at the output terminal of the control signal generating circuit 14.

The signal obtained by the time setting circuit 8 is configured to be applied to the hour/minute/second counter 3, the day of the week counter 4, and the switching circuit 5, and the outputs of the day of the week memory 9 and the hour/minute memory 10 are switched, respectively. The signal is configured to be applied to the circuit 5. The portion surrounded by a chain line in FIG. 1 is an integrated circuit.

In the above embodiment, the output of the reference signal generation source 1 is frequency-divided by the frequency divider 2 and converted into a time pulse with a period of 1 second. Time pulses having a period of one second are counted by an hour, minute, and second counter 3, and one pulse every 24 hours obtained by the hour, minute, and second counter 3 is counted by a day of the week counter 4. The outputs of these counters 3 and 4 are applied to a display drive circuit 6 via a switching circuit 5, respectively. Therefore, the display 7 displays the day of the week, hour, and minute counted by the counters 3 and 4, respectively.

Now, the first timer/clock selector switch S ₃
is input to the timer side terminal a, the switching circuit 5 is driven by the output of the time setting circuit 8, and the display 7 displays the day of the week and hours and minutes stored in the day of the week memory 9 and the hour and minute memory 10. become. In this state, the date switch S ₂ and the hour switch
When S ₅ and minute advance switch S ₆ are operated, the day of the week and hours and minutes stored in the day of the week memory 9 and the hour and minute memory 10 change sequentially, and this is displayed on the display 7. Therefore, in this state, while looking at the display 7, press the date switch _S3 and the hour switch.
S ₅ , operate minute advance switch S ₆ to select the first day of the week,
The hour and minute (for example, 9:30 a.m. on Saturday) are stored in the day of the week memory 9 and the hour and minute memory 10. and the second day of the week, hour and minute (for example, 9 a.m. on Sunday).
30 minutes), momentarily turn on the date memory switch _S1 , and similarly turn on the date memory switch S with the first timer/clock changeover switch _S3 connected to the timer side terminal a. _2. Operate the hour switch _S5 and the minute switch _S6 . By operating in this way, the second day of the week, hour and minute are similarly stored in the day of the week memory 9 and the hour and minute memory 10.

If you want to set all days other than the first and second days to different times, turn on the day memory switch _S1 momentarily again, and set the second timer/clock changeover switch _S4 to the timer side terminal a. put it in,
In this state, operate the date switch S ₂ , hour switch S ₅ , and minute switch S ₆ . and,
In this case, days of the week other than the first day of the week (for example, from Sunday to Friday other than Saturday) are stored in the day of the week memory 9.
and store the desired time (for example, 6:30 a.m.) in the hour and minute memory 10. Then, momentarily turn on the date memory switch S ₁ again, and
With the timer/clock selector switch _S4 connected to the timer side terminal a, the date switch _S2 ,
Operate the hour switch S ₅ and the minute switch S ₆ to store the day of the week other than the second day of the week (for example, from Monday to Saturday other than Sunday) in the day memory 9, and store the same number in the hour and minute memory 10 as before. Memorize the time (for example, 6:30 a.m.).

In this way, day of the week memory 9, hour and minute memory 10
When the desired day of the week and time are stored in the respective memory cells, when the stored day of the week and time are reached, predetermined outputs appear from the first and second comparison circuits 11 and 12, so that the output from the AND circuit 13 is The control signal circuit 14 operates to generate a predetermined output. When an output appears from the control signal generation circuit 14, the output of the hour minute second counter 3 is applied to the counter 16 through the AND circuit 15, and the counter 16 counts a predetermined time.
Stop the operation of step 4. In other words, if the time is set to 9:30 a.m. on Saturday and Sunday, and 6:30 a.m. on other days of the week as described above, the time set by the counter 16 at this time on this day of the week. A predetermined output will appear from the control signal generation circuit 14 for a predetermined time.

FIG. 2 shows the main parts of the program timer shown in FIG. 1 in more detail. In FIG. 2, the day of the week counter 4 is a hexadecimal counter that counts from Sunday to Saturday, and has a 3-bit output terminal. The period from Sunday to Saturday is shown in Figure 3.
Three bits D ₁ , D ₂ , and D ₃ correspond to each other, and another bit D ₄ in Figure 3 determines whether to operate on the specified day of the week or on a day other than the specified day. That's what I do.

Now, assuming that the output of one terminal Q of the flip-flop FF ₁ constituting the time setting circuit 8 is a high level (hereinafter referred to as 1) and the output of the other terminal is a low level (hereinafter referred to as 0), the AND circuit g ₁ is open, and the AND circuit g ₂ will close. Therefore, when the date switch _S2 is operated in this state, the output obtained by the date switch _S2 is applied to the first memory section 9a constituting the day of the week memory 9 through the AND circuit _g1 . Therefore, a desired day of the week can be stored in the first memory section 9a.

When the date memo switch _S1 is turned on momentarily, the operation of the flip-flop _FF1 constituting the time setting circuit 8 is reversed, the output of one terminal Q becomes 0, the output of the other terminal becomes 1, and the AND circuit _g1 is activated. is closed, and the AND circuit g ₂ is opened. Therefore, when the date switch _S2 is operated in this state, the output of the date switch _S2 is applied to the second memory section _9b constituting the day of the week memory 9 through the AND circuit g2. A desired day of the week can now be stored in the second memory section 9b.

By the way, _the memory sections 9a and 9b each consist of 4 bits D ₁ , _{D 2} , D ₃ , and D _{4 .}
The bits represent the days of the week: Sunday, Monday, Tuesday, Wednesday, Thursday, Friday, and Saturday, and the _D4 bits specify the days of the week represented by the _D1 , _D2 , and _D3 bits, or the _D1 , D ₂ , and D ₃ indicate whether to specify a day of the week other than the day represented by the bits. For example, (D ₄ , D ₃ ,
If D ₂ , D ₁ ) = (0, 1, 1, 0), it is Friday,
If (D ₄ , D ₃ , D ₂ , D ₁ ) = (1, 1, 0, 0), then the day of the week other than Wednesday, i.e. Sunday, Monday, Tuesday, Thursday, Friday,
It is structured to represent the five days of Saturday.

Each bit D ₁ , D ₂ , D ₃ of memory parts 9a, 9b
The output of is compared with the output of the day of the week counter 4 by the first and second comparators 11a and 11b constituting the comparator circuit 11, and if they match, an output of 1 appears at the output terminal, which is connected to the AND circuit _g3. , g ₃ ′. In this case, when the output of D ₄ of the memory sections 9a and 9b is 0, it is inverted by the inverters g ₇ and g ₇ ', and the output of 1 is sent to the other input terminal of the AND circuits g ₃ and g ₃ '. is applied to Therefore, outputs of 1 appear from AND circuits g ₃ and g ₃ ', and are applied to AND circuit 13 via OR circuits g ₅ and g ₅ ' and OR circuit g ₈ , respectively. If the output of the time and minute comparison circuit 12 is 1, the output of the AND circuit 13 is 1, and the control signal generation circuit 1
4 is driven.

Each bit D ₁ , D ₂ , D ₃ of memory parts 9a, 9b
If the output of
The outputs of 1a and 11b are 0, so they are inverted by inverters g ₆ and g ₆ ', and outputs of 1 are applied to AND circuits g ₄ and g ₄ '. and,
At this time, if the output of d ₄ of the memory sections 9a and 9b is 1, an output of 1 appears from the AND circuits g ₄ and g ₄ ', and this is sent to the AND circuit via the OR circuits g ₅ and g ₅ ' and the OR circuit g ₈ . 13. Therefore,
If the output of the time and minute comparison circuit 12 is 1, an output of 1 appears from the AND circuit 13, and the control signal generation circuit 14
is driven.

That is, when the output of _d4 of the memory sections 9a and 9b is 0, that is, when the day of the week represented by each bit of _D1 , _D2 , and _D3 is specified, the output of the comparator sections 11a and 11b is 0. An output of 1 appears in the AND circuit 13 only when the output is 1, that is, the day of the week specified by the memory sections 9a and 9b matches the day of the week in the day of the week counter 4, and the output of the hour and minute comparison circuit 12 is 1.
When this happens, the control signal generation circuit 14 is activated. When the output of _d4 of the memory sections 9a and 9b is 1, that is, when a day of the week other than the day represented by each bit of _D1 , _D2 , and _D3 is specified, the output of the comparison sections 11a and 11b is is 0, that is, an output of 1 appears in the AND circuit 13 only when the day of the week represented by D ₁ , D ₂ , D ₃ of the memory sections 9a, 9b and the day of the week of the day of the week counter 4 do not match.
When the output of the time/minute comparison circuit 12 becomes 1, the control signal generation circuit 14 is activated. Therefore, the third
According to the embodiment shown in the figure, desired control signals can be obtained on a specific day of the week or on all days of the week other than the specific day. And memory sections 9a, 9
By adding a plurality of comparison units 11a and 11b, the number of specific days of the week that can be specified can be increased from the 1st to the 2nd or even the 3rd.

As is clear from the above embodiments, the program timer of the present invention has a simple configuration and can be used to set predetermined times at the same or different designated times on pre-designated days of the week and other days of the week based on undesired days of the week. For example, if the control signal is used as a signal to drive an alarm, the alarm will be driven only on Sundays or on Sundays and Saturdays later than on other days of the week. It is also possible to do so, and it can be effectively utilized in accordance with the user's actual living situation, and is extremely advantageous in practice.

[Brief explanation of the drawing]

Fig. 1 is a block diagram of an embodiment of the program timer of the present invention, Fig. 2 is a block diagram showing the main parts of the embodiment in more detail, and Fig. 3 is the output of the memory section used in the embodiment. FIG. 1... Reference signal generation source, 2... Frequency divider, 3...
Hour minute second counter, 4... Day counter, 5...
...Switching circuit, 6...Display drive circuit, 7...Digital display, 8...Time setting circuit, 9...Day of the week memory, 10...Hour and minute memory, 11...Day of the week comparison circuit, 12...Hour minute comparison circuit, 13...AND circuit, 14...control signal generation circuit, 15...AND circuit, 16...counter for setting control signal stop time.

Claims (1)

[Claims] 1. Means for obtaining a 1-second cycle time pulse as a reference signal from a reference signal generation source, means for counting the day of the week, hours and minutes by counting this time pulse, and storing in advance days of the week other than desired and undesired days. means for storing desired hours and minutes in advance; and means for generating a predetermined control signal when the stored days of the week, hours and minutes and the days of the week and hours and minutes obtained by counting the time pulses match or do not match. and the means for storing the day of the week includes means for storing a code for determining whether to generate the control signal on the stored day of the week or on any other day of the week other than the stored day of the week. A program timer configured to output the predetermined control signal at a designated time on a desired day of the week or on a non-desired day of the week.