JPH0776792B2 - Electronic timer - Google Patents

Description

TECHNICAL FIELD The present invention relates to an electronic timer using an electronic circuit such as a microcomputer.

2. Description of the Related Art Conventionally, as a programmable timer of this type, a program channel corresponding to each timer operation time has at least one set of an ON operation for generating an output to the outside and an OFF operation for preventing the generation of the output. There is one that can be set with. As a method of clearing a program corresponding to one timer operation with such an electronic timer, for example, a method of providing a clear key and returning the setting of each timer operation time to the initial state has been adopted. Therefore, it is necessary to know the procedure other than the operation of setting the timer operation time, and it is necessary to provide the clear key. Further, there is a problem that the on-operation time and the off-operation time of the 1-timer operation have to be cleared separately and the operation becomes complicated.

[Object of the Invention] The present invention has been made in view of the above problems, and an object of the present invention is to set cancellation of a timer operation in the same operation process as setting of a normal timer operation time, which is excellent in operability and The purpose is to provide an electronic timer that does not require a special key.

DISCLOSURE OF THE INVENTION The present invention provides a timer arithmetic control circuit in which at least an ON operation for outputting to the outside and an OFF operation for stopping the generation of the output are set as a set and each timer operation time can be set in a corresponding program channel. In an electronic timer equipped with, in the update loop, set the timing to display a mark indicating that the program is cleared in addition to the time value that is cyclically updated and displayed on the display by operating the time feed switch when setting the timer operation time. And a determination means for detecting the operation of the switch for confirming the setting of the timer operation time when the mark is displayed and clearing the program of the timer operation time already set in the program channel. It is provided in the timer arithmetic control circuit.

The present invention will be described below with reference to examples.

First Embodiment FIG. 1 is a circuit block showing a schematic configuration of a 24-hour type of the present embodiment. In this embodiment, a clock function for clocking and a time (day, hour, minute, second) for performing a timer operation are stored. A memory and a signal processing function that captures a key input for performing timer setting, current time setting, output switching, etc., and generates display data for displaying the current time, timer information, etc. on the liquid crystal display unit 2, for example. In addition, an output function for generating an output signal, and as a master clock, generates a sync pulse every hour on the hour, or if there is an input to the sync pulse from the outside within ± 5 seconds with respect to each hour, the current time is corrected. A timer arithmetic control circuit 1 having, for example, a one-chip microcomputer having a parent / child clock function for performing automatic adjustment at times is a main configuration. The timer arithmetic control circuit 1 is supplied with power from a power supply unit 3, and has a key switch unit 8 including an output changeover switch 4 including a momentary contact type push button switch, a select switch 5, a set switch 6, and a mode switch 7. A function setting switch section 9 for setting the functions to be described later is connected to the input port, the liquid crystal display section 2 is connected to the port for outputting display data, and the output signal is relayed (not shown). Connect the external output unit 10 that converts to a dual-system output of a non-voltage contact output and a so-called pulse signal output for driving a remote control breaker to another port, and input a synchronization pulse for the master / slave clock. A synchronous input / output unit 11 for outputting is connected to a port that also serves as an input / output. FIG. 2 shows an overall perspective view of the embodiment, in which the above-mentioned respective circuit parts are housed.
Is formed in the same shape as an off-the-shelf breaker, and can be installed side by side with a normal breaker in a panel such as a switchboard or control panel.
A non-voltage output terminal 14, a pulse signal output terminal 15 and a synchronous pulse input / output terminal 16 are provided, and the function setting switch 9 is exposed to a recess 17 provided on the side surface due to the mounting space. Further, a liquid crystal display section 2 and switches 4 to 7 of a key switch section 8 are arranged on the upper part. Here, the mode switch 7 does not receive the select switch 5 and the set switch 6, and every time the lock mode for displaying the current time, the program mode for setting the operation time of the timer, and the set mode for setting the current time are pressed. Is a switch that can be sequentially and cyclically switched, and the select switch 5 is effective in a mode other than the lock mode, and is a switch for sequentially and cyclically switching setting points such as hour, minute, second, and day when setting or changing. Is. The set switch 6 is effective in a mode other than the lock mode, and is a switch for selecting a setting element at the above-mentioned setting location, and it is incremented or forwarded each time it is pressed. Further, in the case of selecting a numerical value, the numerical value can be fast-forwarded by pressing and holding it for 1 second or longer. The output changeover switch 4 is a switch that is effective only in the lock mode and is set to the "automatic" mode in which the output state is a timer output according to the timer setting, or it is continuously turned on regardless of the set timer operation time. Alternatively, it is for selecting the “ON” mode or the “OFF” mode in which it is continuously turned off.

The function setting switch unit 9 is a switch 9a for selecting whether the timer output output from the external output unit 10 is a non-voltage output "timer" or a pulse signal output "pulse", and a master clock function or a slave clock function is selected. Switch 9b, and a 4-bit switch 9c that can set the time to delay the rise of the ON signal of the timer output when the slave clock is selected.

Thus, first, when setting the present time in this embodiment, the mode switch 7 is set to the set mode. At this time, minutes and seconds are displayed on the liquid crystal display unit 2. In this set mode, the select switch 5 is pressed and the second value is set to zero by the set switch 6. Next, use the select switch 5 to switch to the hour and minute display, and then set the switch 6
To set the hour value. When the select switch 5 is further pressed, the minute setting state is set, and the minute value is set by the set switch 6. When the select switch 5 is further pressed, the day of the week is displayed. In this state, the day of the week is set by the set switch 6, and the setting of the current time is completed.
Of course, if you only need to correct the necessary parts, select switch 5
You can also press to skip. Since these setting statuses are displayed to the user by turning on and off the display of the liquid crystal display unit 2, it is possible to easily set the current time by performing the above operation while watching this display.

Next, the case of setting the timer operating time will be described. First, of the function setting switches 9, the switch 9a is used to select either "timer" for non-voltage output or "pulse" for pulse signal output. This selection situation is shown in FIG. 5 as "ON OFF" display area 2a or "pulse" of the liquid crystal display unit 2.
It is displayed in the display part 2b. Then, the mode switch 7 is used to set the program mode and select the program channel. First, when the program mode is selected, the "program" display portion 2d is turned on and the mode is displayed. And the first program channel "1"
When is set, as shown in FIG. 3 (a) or FIG. 4 (a), the corresponding number on the channel display part 2c is displayed blinking, and if the output setting is “timer”, “ON OFF” "ON" of the display part 2a is turned on to indicate that the timer operation time setting is in the ON operation time mode. Then, when the select switch 5 is pressed in this state, the selection switch shown in FIG.
As shown in FIG. 3B, the "hour" portion of the "program" display portion 2d, the channel display portion 2c, and the time display portion 2e blinks. Every time the set switch 6 is pressed, the displayed numerical value of the "hour" part is sequentially updated from 0 to 23, and when the set switch 6 is further pressed, the display mark is changed to "cc", which indicates that the program is cleared. When the set switch 6 is further pressed, the value returns to 0 and is sequentially updated from the beginning. In this way, when the select switch 5 is pressed at the timing when the desired "hour" is displayed, that "hour" is displayed.
Is written in the built-in memory 1c of the timer arithmetic control circuit 1 as the data of the operation time of the program channel "1". At the same time, as shown in FIG. 3 (c) or FIG. 4 (c), the blinking display of the time display portion 2e shifts from "hour" to "minute". Then, by pressing the set switch 6 as in the case of setting the "hour", the "minute" is set. The displayed numerical value at this time is sequentially updated from 0 to 59.
After that, it returns to 0. When the "minute" setting is completed and the select switch 5 is pressed, the operation proceeds to the operation time setting mode of the next program channel "2", and the third
As shown in Fig. 4 (d) and Fig. 4 (d), the number "2" is blinking on the channel display portion 2c and "ON OF
"OFF" of the "F" display portion 2a is turned on. In the same manner, the timer operating time is sequentially set up to the program channel "8". FIG. 3 (e) or FIG. 4 (e) shows "minute" in the operation time setting mode of the program channel "8".
Shows the display state when is set. When the output is set in the "timer", the ON operation time is automatically set in the odd channel and the OFF operation time is automatically set in the subsequent even channel. When the output is set to "pulse", the rising time of the pulse signal output is set for each channel. When the output is set to "Pulse", if you select the mode in which the character "Pulse" on the "Pulse" display part 2b is displayed by blinking in the program mode with the mode switch 7, the second display part 2e blinks and this state The pulse length can be set with the set switch 6 and the select switch 5.

Now, when the output setting switch 4 composed of a push button switch is operated in the state where the program setting is completed and the mode is returned to the lock mode, the output is in the "automatic" mode corresponding to the timer setting, or the "ON" of continuous OFF or continuous ON. Alternatively, it can be switched to the “off” mode.

By the way, in the electronic timer of the present invention, in the above-mentioned timer operation time setting mode, a cancel setting for canceling the timer operation of a predetermined channel can be performed. It should be noted that the cancellation here means to clear the program corresponding to the 1-timer operation, and in the following description, clearing the program corresponding to the 1-timer operation will be referred to as cancellation. The operation of the cancel function will be described in detail with reference to the flowchart of FIG. 6 and the functional circuit block diagram of FIG.

First, the timer arithmetic control circuit 1 judges by the mode judgment means 1a as shown in FIG. 6 (a) whether or not it is in the program mode for setting the timer operation time by operating the mode switch 7 under the control of the signal processing function. If the program mode is set, the routine proceeds to the timer operation time setting routine of FIG. 6 (b). It is assumed that "timer" is selected in advance by the function setting switch 9. Now, the user decides whether to set or cancel the timer operation for each program channel, and the display of the "hour" display part of the time display part 2e is canceled as shown in FIG. The display is updated by operating the set switch 6 until the mark “cc” is displayed, and the cancel operation is completed by operating the select switch 5 at the timing when the display becomes “cc”. That is, when the select switch 5 is pressed while the display is "cc", the cancel determination means 1b in the timer arithmetic control circuit 1 detects this operation and the set timer operation of the program channel stored in the memory 1c. The time is cleared and the timer operation is canceled. If the output mode is "timer",
If the set operation time of either one of the set of ON operation time and the set channel of OFF operation time of one set of timer operations is channeled, the cancellation determination means 1b automatically operates the operation time of the paired channel. Is also canceled to simplify the canceling operation. Of course, if the output mode is "pulse", it is necessary to perform the cancel operation for each program channel to be canceled.

[Effects of the Invention] As described above, according to the present invention, at least an ON operation for outputting to the outside and an OFF operation for stopping the generation of the output can be set as a set in each program channel corresponding to each timer operation time. Timing to display a mark indicating that the program is cleared in addition to the numerical value that is cyclically updated and displayed on the display by operating the time feed switch when setting the timer operating time in the electronic timer equipped with the timer arithmetic control circuit Is provided in the update loop, and when the switch for confirming the setting of the timer operating time is operated when the mark is displayed, this operation is detected and the program of the timer operating time already set in the relevant program channel is cleared. Since the judgment means for controlling is provided in the timer arithmetic control circuit, normal timer operation is possible. In the process of setting the time, a setting that resets the operation timer time to the initial state, that is, a setting that clears the program (completely erases the program) can be incorporated. Therefore, the operation of clearing the program is a normal timer operation. It can be performed by the same operation as the time setting operation, and it does not require a special operation procedure to clear the program and can be easily performed. Moreover, if the program is cleared in the process of setting the timer operation time in this way, a special switch for clearing the program, such as a clear key, is not required, and the number of operation keys or switches can be reduced.

[Brief description of drawings]

FIG. 1 is an overall schematic circuit block diagram of an embodiment of the present invention.
FIG. 2 is an external perspective view of the same as above, FIGS. 3 and 4 are operation explanatory diagrams of the same as above, FIG. 5 is a front view of the liquid crystal display part of the same as above with a partial omission, and FIG. FIG. 7 is a functional circuit block diagram of the main part of the same as above, and FIG. 8 is a program cancel operation explanatory diagram of the same as above. 1 is a timer operation control circuit, 1a is a mode determining means, 1b is a cancel determining means, 2
Is a liquid crystal display unit, 7 is a mode switch, and 8 is a key switch unit.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Satoshi Inoue 1 Hishie, Higashi-Osaka City, Osaka Prefecture Asahi National Lighting Co., Ltd. (56) References JP-A-50-70062 (JP, A)

Claims (3)

[Claims] 1. An ON operation for outputting at least externally,
In an electronic timer having a timer operation control circuit in which each timer operation time can be set in a corresponding program channel as a set with an OFF operation for preventing the generation of the output, a switch for time feed at the time of setting the timer operation time. In addition to the timing to display a mark indicating that the program is cleared in addition to the time value that is cyclically updated and displayed on the update section,
When the switch for confirming the setting of the timer operation time is operated while the mark is displayed, the operation means is provided with a judging means for detecting this operation and clearing the program of the timer operation time already set in the program channel. An electronic timer characterized by being provided in the. 2. Even if the determination means sets a clear setting in a program channel having either one of an on-operation time and an off-operation time in one timer operation, the other one of the pair is paired with the clear-set program channel. The electronic timer according to claim 1, wherein it is determined that the program of the program channel for which the timer operation time is set is cleared. 3. The electronic timer according to claim 1, wherein when the set timer operation time is reached, the timer operation time at which the output is generated for a fixed time is set for each program channel.