JPS581756B2 - program timer - Google Patents

Description

[Detailed description of the invention] The present invention relates to a program timer.

Program timers, including audio timers, that allow the operating times of a large number of outputs to be individually set are becoming popular.

Among conventional program timers, there are products that only display the current time, and as the number of programs increases, there are products that have the function of displaying the current time and the on-time period of each output with a bar display. is also being considered.

In the case of a timer with the latter bar display function, when setting the program time for each output, the time is digitally displayed by pressing the numeric key, and a display corresponding to the digitally expressed time appears in the bar display area. It seems that the usability will be further improved.

In the case of a Noh play that is programmed multiple times, it is possible to easily compare it with the preset time period, and it is possible to convert fragmentary digital expressions into a continuous bar display area time axis. The point is that it is much easier to understand if you replace it with something else and confirm it.

Therefore, the present invention attempts to provide the above-mentioned convenience by indicating the set time as a dot on the bar display time axis of the corresponding output when setting the program for each output.

First, FIG. 1 shows a program timer that has the function of displaying the on-time period as a bar for each output.

1 is the outer body of the program timer, 2 is a display section including a current time display section 3, an on-time period bar display section 4 in which each output is set, a numeric key, and a clear key section 5;
6 is a rotary switch section for selecting various function modes.

Next, FIG. 5 shows the appearance of the program timer of the present invention.

7 is a dot indicating the newly added number time in each output setting.

In this figure, A1 has already been set, and the program content is displayed on the bar display time axis of output A.

The rotary switch for selecting various function modes indicates A2, indicating that the second program on time for output A is being set.

Since the entered value is 13:30, a dot is shown at the 13:30 position on the bar display time axis of A along with the digital display.

This makes it easy to compare the content of A1 that has already been set, and at the same time
The setting position during the 4-hour cycle can be seen at a glance.

Furthermore, by blinking this dot, it is possible to further inform the user that the contents of the numbers set at each setting position appear on the bar display time axis 7, in addition to indicating the rotary switch position. I think that the.

Referring to FIG. 2, a system configuration diagram of the present invention will be explained.

Reference numerals 200(1) and 200(2) in FIG. 2 are microcomputers, and the functions and data processing processes of the microcomputers will first be explained with reference to FIG.

The first function is a logic operation function, which includes a logic operation unit (ALU) 201 and an accumulator (ACC).
) 202, temporary register (TEMP) 203, program status flag (PS) 204, carry flag 205, zero flag 206. This is achieved by the two's complement (T/C) 207 and the 4-bit A bus and B bus for data transfer.

The ALU 201 is a logical operation unit, which performs logical product, logical sum,
Exclusive OR and addition can be executed.

The T/C 207 calculates the two's complement of the data transferred to the ALU 201, so the ALU 20
1 can perform subtraction.

PS204, CF205, and ZF206 are 1-bit flip-flops that are used to store the system state.

PS208 is a flag that is set and reset by a command, and CF205 and ZF206 are flags that are set and reset by instructions, and CF205 and ZF206 are
The ZF 206 is set and reset depending on whether the calculation result is zero or not, and is used for various determinations in program execution.

ACC202 and TEMP203 are 4-bit registers, which are used to temporarily store ALU input data, operation results, and the like.

The second function is a data storage function.

This function is performed by RAM 209, X register 210, and Y register 211, which are variable memories.

The address of RAM 209 is X and Y register 210,
211, the contents of the RAM 209 can be transferred to the ACC 202 or the like.

The third function is a program storage and execution function that stores and executes programs.

This function includes fixed memory ROM210, program counter PC204, and subroutine stack STACK.
211, is executed by the stack pointer SP212.

The ROM 210 stores a program to be executed by the system written in 8-bit instruction words, and the PC 204 configured with a pinary counter is stored in the ROM.
Specify the address of 210.

Therefore, as the PC 204 counts up, the program stored in the ROM 210 is executed word by word.

STACK 211 stores the contents of PC 204 in order to specify the address to return from the subroutine when executing the subroutine of the program.

SP is used to specify the first address to return to when executing a subroutine at two levels.

The fourth function is an instruction decoding function.

This function is performed by instruction register T-R213,
Instruction programmable logic array I-
Executed by PLA 214.

The IR 213 is an 8-bit register used to latch the 8-bit instruction word transferred from the ROM 210 while the instruction is executed.

The I-PLA 214 has the function of converting the 8-bit instruction word transferred from the ROM 210 into a control signal. Therefore, the 8-bit instruction word written in the ROM 210 by the I-PLA 214 sequentially becomes various control signals and is used by others. Each functional unit (for example, ALU, ACC, RAM...
etc.), and μ-P operates based on the program stored in the ROM 210.

The fifth function is a counter function.

The counter 215 is an 8-bit pinary counter,
With the flip-flop E/DFF216 for the counter,
Set/reset.

When the counter 215 is enabled to count by the E/DFF 216, it counts up the pulse input from the S1 input terminal, and when it counts up to the most significant bit (MSB), the set flag SF217 is set.

Therefore, the command from the ROM 210 causes the E/DFF to
The number of pulses from the S1 input can be counted by setting and resetting 216 and checking whether SF 217 is set.

Further, the contents of the counter 215 can be divided into upper 4 bits and lower 4 bits and transferred directly to the ACC 202 or the like.

The sixth is an input/output function.

The input terminals are 4-bit parallel input terminals A0 to A3 and B0.
There are 4-bit parallel input terminals ~B3.

These two sets of parallel inputs A0 to A3 and B0 to B3 can be selectively transferred to the ACC 202 or the like via the B bus 219 by a multiplexer MPX218.

These A0 to A3 and B0 to B3 inputs are used for inputting data.

Other input terminals include Sφ and S1 input terminals.

This input terminal is convenient for counting pulse signals and performing interrupt operations independently of the μ-P clock.

A comparator C220 determines whether the Sφ input is high or low.

The S1 input is inputted to the counter 215 by the gate G221, or directly passed through the synchronization circuit S222 to the SF2 input.
17, is compared by comparator C223, and S
This is a terminal that can be used in the same way as the φ input.

Whether or not to enter the S1 person counter 215 can be selected by inputting to the CS terminal.

The RST input terminal is used for the purpose of preventing malfunction by stopping the program stored in the ROM210 at the start (address 0) until the μ-P power supply is established, such as when the power is turned on for the first time. be able to.

At this time, all output terminals become L0.

The OSC input terminal is a terminal to which a capacitor and a resistor are connected in order to determine the oscillation frequency of the built-in oscillator 224.

The operation of μ-P is executed using the oscillation frequency of this oscillator as a clock, and the operating speed (processing speed) of this μ-P is determined.

Further, Vss and VDD are power supply terminals.

Next, there are three types of output terminals.

The first output terminal is a D output terminal consisting of D0 to D7.

RAM209 or Ace202 data and PS20
8 is latched by the latch 205 and transferred to the programmable logic array PLA 2 2 6 as 5-bit data, the data (5 bits) is transferred to D0 to D.
It is output as a parallel 8-bit output to the 8 output terminals of 7.

Therefore, these output terminals D0 to D7 are suitable for display on a 7-segment display tube.

The second output terminal is the E output terminal consisting of E0 to E3, and the AC
4-bit data can be output in parallel from the C202 or ROM210.

227 is a latch.

The third output is a C output terminal consisting of C0 to C11,
These C outputs can each be set or reset independently.

That is, when you specify which C output to set using the Y register 211 and issue an output command, the decoder 228
The corresponding C output terminal is latched by the latch 229 and output.

Therefore, various loads can be controlled with this C output terminal.

Note that 230, 231, and 232 are multiplexers, and 233 is a comparator.

The functions and data processing process of μ-P shown in FIG. 8 have been outlined above, and the present invention
An example using P is shown.

The embodiment shown in FIG. 2 is a control device constructed using the μ-P200 as described above.

8 in FIG. 2 is a reference time pulse generator, which may be a commercial power source, for example.

Reference numeral 9 indicates various mode selection signals from the rotary switch 6 in FIG. 1, and 10 indicates signals from the numeric key and clear key.

11 and 12 correspond to outputs A and B, respectively.

Reference numeral 13 denotes a time indicator, which is composed of a fluorescent display tube, LED, and the like.

The microcomputer 200(1) controls the above-mentioned various inputs and outputs, and also transmits a program time signal to the bar display output control microcomputer 200(2).

17 is a dot and bar display element (LED here)
15 and 16 indicate a group of selectors and drivers.

This system configuration consists of 200 (1) that inputs setting signals from rotary switches and numeric keys to control outputs A-B and the time display, and a bar display of the on time using an LED. It can be seen that this is made up of 200(2) which controls the dot display of the set time.

Next, a specific circuit of the dot and bar display section of the present invention will be explained with reference to FIG.

18 is the output Cφ of the microcomputer 200 (2)
This is a ring counter whose output goes high in the order of 1 → 2 →... → 6 → 1... in synchronization with .

In this embodiment, the minimum unit of time for bar display is divided into 15 minutes, and in order to correspond to each minimum unit, LEDa1, a2,
a3, . . . a96, b1, b2, . . . b96 are provided.

A1 to a96 are bar representations of output A, and b1 to b96 are output B.

Furthermore, due to the number of outputs of the microcomputer 200 (2), the 96 LED groups indicating 24 hours are divided into 6 blocks of 16 outputs each, a1 to a16 and b1 to b.
16 corresponds to ring counter output 1, a17 to a32
and b17 to b32 correspond to ring counter output 2, and each of the 6 blocks is set to ring counter output 1.
- Corresponds to 6.

The 16 outputs of C1, C2,...C11, Dφ,..., D4 are:
It is a signal for controlling each LED of each of the blocks, and i1
, i2, . . . i96 have input signals from the ring counter and signals for controlling each LED.

The outputs of D5 and D6 are for A/B selection, and are 20.24
is an inverter buffer, 21 and 25 are base resistances of transistors 23 and 27, respectively, and 22 and 26 are resistances for improving switching characteristics.

19 indicates Batufa.

The circuit operation in FIG. 3 will be explained using an example.

If the program for output A is to turn on at 0:05 and turn off at 1:10, when ring counter output 1 is high, set C1 to C5 high and D5 high. , the outputs of the NAND gates i1 to i5 are low, the transistor 23 is conductive, and the LEDs a1, a2, a3, a4
, a5, and the light is turned on.

This is LEDa where 0:05 is divided into 15 minute units.
1, and 1:10 corresponds to the position of LEDa5, so LEDa2, a located halfway from a1 to a5
3, a4 is also turned on.

This display creates a continuous bar display of LEDs, allowing the program contents to be recognized at a glance.

The operation is similar for other program time periods, and in synchronization with the output of the ring counter 18 that shifts sequentially, the corresponding outputs C1 to D4 are output, and D5 and D6 are made high alternately, thereby controlling A and B. It is also possible to display each bar.

The reference control pulse Cφ is the output 1 of the ring counter 18.
The time it takes to make ~6 high twice, that is, the time it takes to start from blocks a1 to a16 and reach blocks b81 to b96, must be output to a time that does not cause flickering to the human eye. Of course.

Here, in the case of A2 ON setting mode, for example, if the set value is 13:30, when ring counter output 4 is high and D5 is high, by setting data output C6 high, 15:30 is set. The dot at the 13:30 position lights up at minute intervals.

Next, FIG. 4 shows a timing chart of the operation shown in FIG. 3 described above.

The reference control pulse Cφ is output at intervals of t0, and at the falling edge of each pulse, the outputs 1 to 1 of the ring counter 18 are output.
6 gradually becomes high level.

t1, t2, t3, t4... are each output 1, 2, 3, 4,
. . is the time when the LED is high, and the corresponding LED lighting signals C1 to D4 are output within this time.

In this diagram, the blocks are divided into A, B, C, Engineering, etc., respectively.

In this figure, it can be seen that D5 is high and the output A is displayed as a bar.

FIG. 6 shows another embodiment.

This is obtained by adding a dot according to the present invention to the current time remaining in the bar display area as a pointer during each output setting.

As a result, the current time, which disappears on the digital display, appears on the bar display time axis even when setting each output, so it is easy to compare when setting the set time, and it also shows how many hours from the current time it is. You can easily decide whether to turn it on or off later.

32 in the figure is a pointer for displaying the current time.

FIG. 7 is an example of the circuit configuration of the pointer, dot, and bar display section shown in FIG. 6.

Newly added LEDs for pointer display of P1 to P96, inverter buffer 28, transistor 31, resistors 29 and 30, and microcomputer 2
The output of 00(2) also indicates that D5 indicates a pointer, and D6, D
7 is a bar display instruction for A and B, respectively.

As described above, according to the configuration of the present invention, the contents of the numbers set at each setting are shown on the bar display time axis of each output, making it easier to compare with the preset time period as described above. It is thought that the ease of setting will increase as the digital representation is replaced with a continuous time axis.

[Brief explanation of drawings]

FIG. 1 is an external view of a program timer having a bar display function, FIG. 2 is a system block diagram of an embodiment of the program timer of the present invention, and FIG. 3 is a circuit diagram of the dot display and bar display section of the present invention. Figure 4 is a timing chart of the same program timer, Figure 5 is an external view of the program timer of the present invention, Figure 6 is an external view of another embodiment, and Figure 7 is a circuit diagram of the dot and bar display section of Figure 6. , FIG. 8 is an architectural block diagram of the microcomputer. 3...Current time display section, 4...On time zone bar display section, 5...Number key, clear key part, 7...Output setting A dot inside indicates the time.

Claims (1)

[Claims] 1. On and off operations can be programmed at least once for each output, and together with a digital display of the current time, the on time from the programmed on time to the off time corresponding to the on time is displayed. , 24 times a day with a constant width band for each output.
The timer has a bar display area in the time axis direction where each time is displayed, and when setting the program for each output, the set time is shown as a dot on the bar display time axis of the corresponding output. 2. The program timer according to claim 1, characterized in that the dots blink at a certain constant period.