JPS621237B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a coincident time detection device for electronic equipment such as a timer device.

In recent years, electronic computers, electronic clocks, and the like have been put into practical use that allow a date or time to be set and automatically perform a predetermined operation when the set time arrives.

The time setting method for electronic devices equipped with this type of timer function is to input the year, month, day, hour, minute, and (second), or to input only the hour, minute, and (second). (For some cases, it is not necessary to enter the seconds.)

However, in the former case, time data once set can be used only once forever in order to define all inputs. Furthermore, even when setting a different time on the same month and day of the same year, the user must input the year, month, and day each time, which is extremely troublesome.

On the other hand, in the latter case, once the time is set, a predetermined operation can be performed at the same time every day, but it is not possible to specify the year, month, and day. Furthermore, with this method, for example, if it is desired to perform a predetermined operation at the same minute every hour, it is necessary to input data for each hour.

The present invention has been made in view of the above points, and it is an object of the present invention to provide a time setting method that allows input operations to be performed only for necessary items, simplifies input operations, and allows time setting to be performed reliably. purpose.

An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 shows an example in which the present invention is implemented in a program start circuit that can automatically start a specified processing program at a set date and time in an information processing system. In FIG. 1, reference numeral 1 denotes a key input section, which includes a numeric keypad 2, function keys 3 including a day of the week key, and, for example, "year", "month", "day", "hour", "minute", and "second" for specifying the date and time. ”
keys, "P ₁ " to "P ₄ " keys for program specification,
It is provided with various setting keys 4 such as an "M" key for specifying morning and afternoon. In this case, for example, the morning is designated by operating the keys "1" and "M", and the afternoon is designated by operating the keys "2" and "M". The key input from the key input section 1 is sent to a key determination circuit 5, which will be described in detail later, to determine the operation key. This key determination circuit 5 has output lines 5a to 5.
c, the output line 5a outputs a selection signal when the program keys "P ₁ " to "P ₄ " are operated alone, and the output line 5b outputs a selection signal from the key input section 1
Outputs the date and time data input from the output line 5c, and outputs the program keys "P ₁ " to "P ₄ " when the program keys "P ₁ " to "P ₄ " are operated in combination with other keys. Outputs a selection signal for. In addition, in the date and time data sent from the key judgment circuit 5 to the selector 7 via the output line 5b, a key judgment circuit is included for items other than "minutes" and "seconds" that are not specified in the key input section 1. For example, an FF signal (all "1" signal) is written within the buffer 5. The selection signals outputted from the output lines 5a and 5c of the key determination circuit 5 are sent to selectors 6 and 7, respectively, and the data outputted from the output line 5b is inputted to the selector 7 and, for example, to an arithmetic circuit. etc. are sent to other circuits. The selector 6 outputs data from the program counter PC, which will be described later, to one of a plurality of output lines, for example, four output lines, in accordance with a selection signal from the key judgment circuit 5, and the output is sent to the start address memory 8. sent to. This start address memory 8 contains the start addresses of each program P ₁ to _{P 4} written in the RAM (random access memory) 9, such as "300", "500", "650",
Address "750" is written. The stored contents of the start address memory 8 are selected by the selector 10 and further sent to the program counter PC via the selector 11. The output of the program counter PC is sent to the RAM 9 as a program designated address and is also sent to the save register 13 via the AND circuit 12. The program start address held in this save register 13 is sent to the program counter via the selector 11.
Returned to PC. Write data and read data to and from the RAM 9 are exchanged with the control section 14. On the other hand, the selector 7 selects the data sent from the output line 5b of the key determination circuit 5 according to the selection signal from the output line 5c.
It is output to any of the output lines of the book, and the output is sent to the date and time memory 15. This date and time memory 15 is for storing the processing start date and time of the programs _P1 to _P4 , and stores, for example, "year" and "month" in the area corresponding to the start address memory 8, as shown in FIGS. 2a and 2b. ”, “Sun”, “Day”, “AM/PM”,
Date and time data such as "hour", "minute", "second", etc. are written. The storage contents of the date and time memory 15 are selected for each area by the selector 16, and the judgment circuit 17
At the same time, it is sent to the comparison circuit 19 via the gate 18. The selector 16 performs a selection operation in accordance with data sent from the clock circuit 20 via the shift register 21. The shift register 21 has a 4-bit configuration, for example, and the clock circuit 2
The 1 second signal inputted from 0 is shifted in accordance with the clock pulse CP from the clock circuit 20, and each bit output, that is, 4 bit data is given to the selector 16 as a selection signal. In addition, the output of the shift register 21 is sent to the selector 1 via a buffer 22.
0 as a selection signal. The above clock circuit 20
The system counts the reference signal output from the internal oscillation circuit to create data for seconds, minutes, hours, days, months, years, and days of the week, outputs date and time data from the output line 20a, and outputs the data through the gate 23. and sends it to the comparison circuit 19. The judgment circuit 17 includes a selector 16
The contents of the date and time memory 15 output through the gates 18 and 23 are judged, and when the FF signal is detected,
Give a closing command to. Furthermore, the clock circuit 20 outputs a 1 second signal from the output line 20b, which is input to the shift register 21 and also given to the comparison circuit 19 as a comparison command. The comparison circuit 19 compares the date and time data sent from the date and time memory 15 via the gate 18 with the date and time data sent from the clock circuit 20 via the gate 23 when the 1 second signal is input. , the control unit 1 sends a match signal when there is a match.
4 as an interrupt signal, and also provided to the buffer 22 as a read signal. When the control unit 14 receives an interrupt, it outputs “1” from the output line 14a.
A signal is output and input to the selector 11, AND circuit 12, and buffer 22. The contents held in this buffer 22 are read out by a signal from the control section 14 and sent to the selector 10 as a selection signal. When the control section 14 finishes accessing the RAM 9, it outputs an end signal from the output line 14b, and inputs it to the selector 11 as a selection signal and to the reset terminal R of the buffer 22.
Furthermore, during normal control operations other than program start control, the control section 14 outputs a "1" signal from the output line 14c and inputs it to the selector 11 as a selection signal.

Next, details of the key determination circuit 5 will be explained with reference to FIG. Reference numeral 31 denotes a key buffer that holds date and time data inputted from the key input section 1 for each item, and the data held in this key buffer 31 is sent to a gate circuit 32 and a judgment section 33.
This judgment section 33 judges the specified item from the function code in the key buffer 31 according to the control command from the control section 14, and gives a control command to the gate circuit 32 according to the judgment result, and also outputs the output line. A selection signal is output to selectors 6 and 7 via 5a and 5c. In addition to the input from the key buffer 31, the gate circuit 32 is given a 4-bit FF signal "1111" from the control section 14.
One input is selected according to a control signal from the determining section 33. The output of this gate circuit 32 is sent to a buffer 34 having the digit configuration shown in FIG. 2, where it is temporarily stored, and then sent to the date and time memory 15 via an output line 5b. However, the judgment unit 33
determines the function code input from the key input section 1, switches the input of the gate circuit 32 for the item not specified by the key input section 1, and writes an FF signal to the buffer 34. From key input section 1, input the necessary items such as "Year", "Month", "Day",
Since "day of the week", "AM/PM", "hour", "minute", and "second" are input in this order, by determining the function code in the key buffer 31, you can input unspecified input. Items can be detected. For example, if you want to specify 12:00:00 pm on June 1, 1979, enter "79" in key input section 1.
"Year""6""Month""1""Day""2""M""12"
Perform the "hour" key operation. First, when a key operation for "79" and "year" is performed in the key input unit 1, the data for "79" is stored in the key buffer 31. On the other hand, the judgment unit 33 detects the function code held in the key buffer 31, stores that the year data has been input, and sends a control signal to the gate circuit 32 to gate the year data "79" in the key buffer 31. Buffer 3 via circuit 32
4, and write it in the year storage digit, that is, the most significant digit, as shown in FIG. 2a. Thereafter, "month" data and "day" data are written into corresponding digits of the buffer 34 in the same manner. Then, the "M" code is input from the key input section 1 to the key buffer 31. When the judgment section 33 receives the "M" code from the key buffer 31, it detects from internal storage data that "day of the week" data has not been input until then, and switches the input selection of the gate circuit 32 to output the FF signal. Write to the day of the week storage digit in the buffer 34. Thereafter, the determining section 33 switches the gate 32 again to the key buffer 31 side, and writes the numerical code, for example "02" indicating the afternoon (PM) held in the key buffer 31, into the "AM/PM" digit in the buffer 34. Next, by inputting the data "12" and "hour" from the key input section 1, the hour data "12" is written into the hour memory digit of the buffer 34. After inputting the above date and time data, by operating any of the program designation keys "P ₁ " to "P ₄ " on the key input section 1, the date and time data held in the buffer 34 is changed to According to the program number determined by the determination section 33, the program is transferred to the date and time memory 15 via the selector 7. For example, if you want to specify 7:30 a.m. regardless of the date, key input section 1
, perform key operations for ``1'', ``M'', ``7'', ``hour'', ``30'', and ``minute''. In this case, the keys "1" and "M" indicating AM are first operated, so when the determining section 33 detects the "M" code, it switches the gate circuit 32 to the FF signal side, as shown in FIG. "Year", "Month", and "Month" for which no items are specified as shown in b.
Write the FF signal to each memory digit of "day" and "day of the week". Thereafter, the determining section 33 switches the gate circuit 32 to the key buffer side 31 and writes the numerical code "01" indicating the morning (AM) held in the key buffer 31 to the "AM/PM" digit in the buffer 34. Then, the hour data "07" and minute data "30" input from the key input section 1 are written into the hour memory digit and minute memory digit of the buffer 34, as shown in FIG. 2b. After inputting the above time data,
Program specification key “P ₁ ” of key input section 1 ~
It is transferred to the date and time memory 15 via the selector 7 according to the program number specified by "P ₄ ".

Next, the overall operation shown in FIG. 1 will be explained.
Programs P ₁ to _{P 4} whose processing operations are to be started at a specified date and time are written in the RAM 9 in advance. When writing the programs P ₁ to P ₄ , when the program designation keys "P ₁ " to "P ₄ " in the key input section 1 are operated, the contents of the program counter PC at that time are written to the start address memory 8. For example, when writing the program P ₁ , when the program designation key "P ₁ " of the key input section 1 is operated, a selection signal corresponding to the "P ₁ " key is output from the output line 5a of the key judgment circuit 5, and is sent to the selector 6. Sent. The selector 6 operates according to the selection signal from the key judgment circuit 5, and selects the program counter at that time.
The contents of the PC, that is, the start address "300" of the program P ₁ are written via the selector 6 into the area of the start address memory 8 corresponding to the program P ₁ . Similarly, other programs P ₂ to _{P 4}
By operating program keys "P ₂ " to "P ₄ " when writing to RAM 9, the start addresses "500", "650", and "750" for programs P ₂ to _{P 4} can be changed to RAM 8. is written to each program-compatible area. Further, the user inputs the date and time on which the programs P ₁ to _{P 4} are to be executed using the key input unit 1 . For example, if you want to specify program P ₁ at 12:00 pm on June 1, 1979, enter "1979", "year", "6", "month", "1", "day", "12" from key input section 1.
If you want to specify program P ₂ at 7:30 a.m. every day by pressing the "hour", "2", "M", and "P ₁ " keys, press "7", "hour", "30", "minute", and "1". ”, “M” and “P ₂ ” key operations. The key input data from the key input unit 1 is sent from the key determination circuit 5 to the date/time memory 15 via the selector 7 as described above, and written into the areas corresponding to the programs P ₁ and P ₂ . The clock circuit 20 is in constant clock operation and outputs a 1 second signal from the output line 20b. This 1 second signal is sent to the comparison circuit 19 as a comparison command, and is also sent to the shift register 21, and the clock circuit 20
The first bit of the shift register 21 is written in synchronization with the clock pulse CP from the clock pulse CP. The “1” signal written in this shift register 21 is
They are sequentially shifted in synchronization with the clock pulse CP. The selector 16 operates in accordance with the data shift of the shift register 21, selects and reads out the contents of the date and time memory 15 by region, and inputs the selected data to the judgment circuit 17 and gate 18. The judgment circuit 17 judges the input contents, and while data other than the FF signal is being read from the selector 16, the gates 18 and 2
3 and inputs the contents of the date and time memory 15 read out via the selector 16 to the comparison circuit 19, and inputs the date and time data at the current time read out from the clock circuit 20 via the gate 23 to the comparison circuit 1. . Comparison circuit 19 compares the date and time data read from date and time memory 15 with the date and time data input from clock circuit 20, and outputs a match signal when they match. For example, when comparing the date and time data for program P ₁ in the date and time memory 15 with the current date and time data, first from the date and time memory 15 "Year"
8-bit parallel data is read out and compared with the current date and time data in the comparator circuit 19. Next, the "month" data and the "day" data are sequentially compared. In this case, since the FF signal is read out for "day of the week", gates 18 and 23 are closed and no comparison is performed. In this way, the date and time data for the program _P1 set in the date and time memory 15 is compared with the current date and time data, and when all the data match, the comparison circuit 19 outputs a match signal. Furthermore, since only time data is set as the date and time data for program _P2 stored in the date memory 15, a match signal is output from the comparator circuit 19 at "7:30" regardless of the date. Ru. The match signal output from the comparator circuit 19 is input to the control section 14 as an interrupt signal, and is also input to the buffer 22 as a read signal. This read signal causes the contents of the shift register 21 to be transferred to the buffer 22. On the other hand, when the instruction being operated is completed and the control unit 14 becomes able to accept an interrupt, it accepts the interrupt from the comparator circuit 19 and outputs "1" from the output line 14b.
A signal is output and input to the buffer 22 as a read command. This read command causes the contents of the buffer 22 to be read to the selector 10, and the contents of the start address memory 8 corresponding to the area of the date and time memory 15 selected by the selector 16 at this time,
For example, the start address of program P ₁ is "300"
The address is selected by selector 10, selector 1
1. This selector 11
When a "1" signal is given from the output line 14 of 4a, data from the selector 10 is selected and loaded into the program counter PC. At this time, the data received in the program counter PC is passed through the AND circuit 12 to the save register 13.
Evacuate to. And the above program counter
RAM9 by address “300” loaded on PC
The start address of program P ₁ is specified, and processing for program P ₁ is executed. When the processing operation for the program P ₁ is completed, a termination signal is output from the output line 14b of the control section 14, the buffer 22 is reset, the operation of the selector 11 is changed, and the program is saved in the save register 13. The data is returned to the program counter PC via the selector 11. Thereafter, in the same manner, the date and time data stored in the date and time memory 15 and the current date and time data clocked by the clock circuit 20 are compared every second, and if they match, the start address of the program corresponding to the date and time data is compared. is read out from the start address memory 8, the program stored in the RAM 9 is read out, and its processing is executed.

Note that in the above embodiment, FF signals are written to items that have not been input among the date and time data setting items to exclude them from comparison with time data, but the invention is not limited to this.
For example, a flag bit may be provided corresponding to each item, and items for which this flag is not set may be excluded from comparison with clock data.

As described above, according to the present invention, it is only necessary to perform the input operation for necessary items among the setting items of date and time data, and the input operation can be simplified and the time can be set reliably. Further, if the year, month, and day are specified, the operation can be performed only once, and if only the day of the week and time or the time is specified without specifying the year, month, and day, the operation can be performed repeatedly at the specified time. The one-time operation and repeated operation described above do not require switching of a mode switch, and can be performed only by setting input information.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention; FIG. 1 is an overall circuit configuration diagram, FIGS. 2a and b are diagrams showing an example of setting an alarm time, and FIG. 3 is a key determination circuit in FIG. 2. FIG. 2 is a block diagram showing details. 1...Key input section, 5...Key judgment circuit, 8...
...Start address memory, 9...RAM, 15
...Date and time memory, 32...Gate circuit, 33...
Judgment department.

Claims (1)

[Scope of Claims] 1. A clock means 20 that obtains time information by counting reference signals, a set time storage means 15 having a time unit storage area for storing each time unit of the set time information, and the set time information. a key input means 1 consisting of a numerical data input key for inputting numerical data for each time unit, and a time unit designation key for specifying the time unit of the numerical data input with the numerical data input key; Therefore, determining means 33 determines the time unit in which the numerical data is not input.
and, based on the key input data by the key input means and the judgment result by the judgment means, the time unit in which the numerical data is input is stored in the corresponding time unit storage area, and the numerical data is inputted. A set control means 14, 32, 34 stores a predetermined code different from the set time information in the corresponding time unit storage area for the time unit that has not been set. Coincidence detection means for detecting coincidence by comparing data in the time unit storage area of the time storage means other than the time unit storage area storing the different predetermined code with the time information obtained by the time measuring means. 17, 18, 19, and 23. A coincidence time detection device for an electronic device, characterized in that it comprises: 17, 18, 19, and 23.