JPS6230392B2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a device that performs output control such as on/off according to a predetermined schedule and automates the heating and cooling of buildings and schools, time signals, etc. This invention relates to an improvement of a so-called weak programmer that can perform the output control.

A weekly programmer is generally equipped with a plurality of output terminals, and each of these output terminals is equipped with means for storing a predetermined program to perform output control for each day of the week and each time of the week.

Normally, a memory is used as this storage means, but an input device is also provided as a means for writing and rewriting the memory so that programs can be stored according to the operator's intentions.

Further, as the elements constituting this weak programmer, a day/time counter and a readout circuit for reading out and outputting the stored contents corresponding to the current day of the week/time are important.

A conceptual block diagram of a week programmer mainly composed of these elements is shown in Fig. 1, which includes a memory 1, an input key 2 as an input means, a day/time counter 3, a readout circuit 4, and other parts. A display circuit 5 and, although not shown, a control circuit for controlling these elements are generally added.

A week programmer with such a configuration executes the same program every week, but for example, on a holiday such as a holiday or substitute holiday, or on a specific day of the week, the program execution on Sunday or other In some cases, such as executing a special program, it may be necessary to execute a program for another day of the week other than the program corresponding to the day of the week, that is, to change the day of the week.

In such a case, conventionally, the program for the day of the week was changed, and when that day had passed, the procedure of writing the original program was repeated.

However, such an operation has the disadvantage that not only is it complicated to change and rewrite the program, but also that it is easy to write an incorrect program due to an operational error.

The main purpose of this invention is to execute programs on special days such as holidays and substitute holidays, in view of the fact that programs common to other days of the week are relatively often executed. By using the program as it is, it is possible to avoid the complexity of program changes and rewriting, and to provide a more preferable weak programmer from the viewpoint of preventing operational errors.

Embodiments of the present invention will be described in detail below with reference to the drawings.

FIG. 2 is a block diagram of a main part of a day of the week changing device for a week programmer according to an embodiment of the present invention, and FIG. 3 is a flowchart showing the operating procedure of the day of the week changing device.

In FIG. 2, the input keys include a day of the week key "AK" for specifying the day of the week on which the execution program is to be changed, a specific day of the week that has a program to be executed on the specified day of the week, and It consists of a specified day of the week key "WEEK" to enable, a specific day of the week key "W.CHG", and a day of the week change execution key "W.SET" to enable these key inputs.

IC1 and IC2 accept the input signal of the day key “AK”,
register depending on signals from other input keys.
An input controller that outputs to R ₁ or R ₂ ,
This register _R1 stores the specified day of the week, for example, the day of the week when a holiday or substitute holiday exists, and register _R2
When executing a program on another day of the week on this designated day of the week, stores the specific day of the week that is the other day of the week.

M is a memory that stores a program input in advance from an input key (not shown) as a schedule, so that a desired program can be read out as needed, for example, a RAM (RANDOM).
ACCESS MEMORY), etc. Also, AC
is an address counter that specifies the address of a desired area of this memory M and is used for writing and reading operations, and is configured to be able to count up by an adder ADD. The ADC is an address decoder that decodes the contents of the address counter AC, and directly specifies a desired address in the memory M.

_R0 is a register that holds the stored contents of the address of the memory M specified by the address counter AC, and part of this contents is stored in the output buffer RB, decoder DC1 and DC as described later.
2 to an output terminal (not shown).
In addition, decoder DC1 outputs the output terminal number,
Decoder DC2 outputs signals such as on/off pulses.

Next, TIM1 is a current time counter that stores the current day of the week and time, and TIM2 is another time counter whose day of the week is preset by the contents of register _R2 . This TIM2 is a time counter like TIM1, so of course it measures time. Since only the day of the week is preset in the contents of register _R2 , the time information other than the day of the week is exactly the same as TIM1.

Judgment circuits J ₁ and ₃ are these time counters TIM
1 and TIM2 and the day of the week and time stored in register R ₀ , the time counters TIM1, TIM2 and register R ₀ are
Further, a determination circuit _J4 for detecting the end of one day is connected to the current time counter TIM1.

Further, judgment circuits J ₂ and J _sp are also connected to registers R ₁ and R ₂ , respectively, and each register is a current time counter.
A match with TIM1 is determined, and the presence or absence of input to register _R2 is detected.

By the way, the day of the week changing device having such a configuration is controlled by micro-orders from a sequential controller SC that stores a certain procedure.

The flow shown in FIG. 3 shows a partial control procedure stored in this sequential controller SC.

This flow will be explained below with reference to FIG.

Note that this flow is explained in the second section to make it easier to understand.
It should be noted in advance that the operation procedure of only the day of the week changing device shown in the figure is shown, and the relationship with other procedures necessary for the operation of the week programmer is omitted.

Step n _{1 ( hereinafter} step n _x will be simply abbreviated as n It is assumed that the day of the week has not been entered and the process proceeds to n ₂ , and if it has been entered, it is assumed that the day of the week has been changed and the process proceeds to n ₃ .

The routines below n ₂ execute the program for the day of the week without changing the current day of the week, and the routines below n ₃ execute the program for the specific day set in register R ₂ when the current day of the week is changed. This is the routine to be executed. Then, execute the daily program in each routine,
When the execution is finished, it is linked to another control flow (not shown).

First, to explain the routine after n ₂ that proceeds when the day of the week has not changed, a micro order is generated at n ₂ , and the clock counter TIM1, which stores the current day of the week and time, and the day of the week and time contents of the currently specified address in memory M, are The determination circuits J ₁ and ₃ determine whether or not they match. If it doesn't match
Proceed as n ₂ → n ₄ , count up the address counter AC, and shift the specified address. Then, n ₂ → n ₄ → until they match, that is, until the program corresponding to the current day of the week and time is moved to register R ₀ .
It cycles through a loop of n ₂ ... and proceeds to n ₂ → n ₅ when a match is reached.

In n ₅ , the contents specifying the output terminal number and output status excluding the day of the week and time in register R ₀ are transferred to the output buffer RB, and in the next step n ₆ , decoders DC1 and DC2 are enabled and read out. Executing the program, that is, outputting either an on, off, or pulse signal to a predetermined output terminal.

Next, at _n7 , the determination circuit _J4 determines whether the day has ended or not. If the day has not ended, the process returns to _n2 , and if the day has ended, this flow ends. Therefore,
Routines with n ₂ and below execute programs on normal days of the week without changing the day of the week.

Next, we will explain the routine for n ₃ or less, that is, the routine when the day of the week changes. First, at n ₃ , a match is determined between the time counter TIM1 and the contents of register R ₁ , that is, register R ₁
Checks whether the specified day of the week for which the day of the week _should be changed and _the current day of the week, which is set in
Then proceed to execute the above-mentioned normal day of the week program. Therefore, when a change to the day of the week is specified and the current day of the week becomes the specified day of the week, the routine proceeds to routines from _n3 onwards.

At _n3 , the day of the week portion of another clock counter TIM2 provided separately from TIM1 is cleared, and at the next _n9 , a specific day of the week is preset. From this stage TIM1
and TIM2 start measuring time with only the day of the week different. Next, at n ₁₀ , the day of the week and time contents of register R ₀ are compared with the above clock counter TIM2, and until they match, n ₁₀ is repeated in the same way as in the circular loop of n ₂ → n ₄ → n ₂ →... described above. →n ₁₁ →n ₁₀ →…repeat, and when they match, that is, the clock counter
When the program corresponding to TIM2 is moved to register R ₀ , it progresses as n ₁₀ → n ₁₂ → n ₁₃ , and the above-mentioned
Execute the program read into register R ₀ in the same way as steps n ₅ and n ₆ . Note that J ₁ and _{J 3} compare TIM1 and register R ₀ when a micro order occurs, and compare TIM 2 and register R ₀ when a micro order occurs.

Then, at the next n ₁₄ , the judgment circuit J ₄ determines that 1
It is determined whether the day has ended or not, and if it has not ended, the process returns to _n10 and continues execution of the program for the particular day of the week. At the end of the day, this flow exits at n ₁₄ and is linked to another control flow in the same way as n ₇ .

In this way, when _n3 or less, the program for the specific day of the week set in register _R2 can be executed on the specified day of the week set in register _R1 .

Therefore, the day of the week can be changed without changing the contents of the memory M at all, and the day of the week change can be easily canceled by, for example, clearing the register _R2 .

Note that in the above embodiment, the specific day of the week is a day other than the specified day of the week, but this specific day of the week does not mean only a specific day of the week;
If a specific program is stored in memory M in advance, the specific date relative to that program,
It also includes. Therefore, if a program for a specific day is stored in memory M in advance in addition to a week's program, and this specific day is set on a specific day of the week, the program for that specific day will be executed on the specified day of the week. Become.

As described above in detail regarding the embodiments of this invention,
According to this invention, a program for a specific day can be executed on any day by an extremely simple operation without changing or rewriting the program in the memory.

Therefore, the weekly programmer to which the present invention is applied has excellent operational effects, especially when it is necessary to change the days of the week frequently.

[Brief explanation of the drawing]

FIG. 1 is a conceptual block diagram of a week programmer, and FIG. 2 is a block diagram of a main part of a day of the week changing device for a week programmer, which is an embodiment of the present invention.
FIG. 3 is a flowchart showing the operating procedure of the day of the week changing device. M...Memory, _R0 to _R2 ...Register, _J1 , ₃ ,
J ₂ , J ₄ , J _sp ...judgment circuit, TIM1, TIM2...time counter, SC...sequential controller.

Claims (1)

[Scope of Claims] 1. A week programmer that includes a clock counter that stores the current day of the week or time, and a memory that stores a schedule for each predetermined day of the week and time, and that performs a predetermined output according to the schedule, a specified day of the week setting means for specifying a day of the week on which a program for another day of the week is to be executed; a specific day of the week setting means for specifying the other day of the week; and a control means for reading out a program for a specific day of the week from the memory and executing it on a specified day of the week. A weekday changing device for a week programmer, comprising: