JPS58217029A - Time controller - Google Patents

Abstract

PURPOSE:To eliminate the need to reset time and a timer during reactivation, by allowing an RAM stored with a time set value and a timer circuit wherein the time is set to operate by both of a commercial power source and batteries. CONSTITUTION:While the time and a time value are set for schedule operation, an arithmetic processing part 2 sends a signal to an output part 8 once the time of the timer circuit 11 coincides with the time set value to turn on or off the relay of a starting and stopping circuit 13, starting or stopping an external device 14. In this case, the RAM4 and timer circuit 11 can operate by the batteries, so they can be put in operation by the batteries after the commercial power source 15 is turned off. Consequently, the timer and time value are set easily through the RAM4, a key switch 10, and a display 121 and even when the commercial power source 15 is turned off and then on, it is not necessary to reset the timer and time value.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a time control device for a device for starting and stopping an external device at set times.

Conventionally, when an external device is operated on a schedule using a microcomputer device, the timing of the scheduled operation is processed by software. Therefore, after disconnecting the commercial power supply connected to this microcomputer device, it is necessary to reset the time and start/stop time (time value) of the external device, and it cannot be used continuously. Therefore, all circuits are connected to a battery support circuit.However, this circuit consumes a large amount of power and is therefore expensive.In addition, a digital switch is used for each digit to set the time setting value. However,
As the size increases, the cost also increases.

SUMMARY OF THE INVENTION An object of the present invention is to provide an inexpensive time control device that does not require resetting the time and time value when the device is restarted after cutting off the commercial power supply.

In order to achieve the above-mentioned object, the present invention provides a microcomputer device for controlling scheduled operation, in which a clock circuit for counting time and a key switch for inputting numerical values are connected to the input section of the microcomputer device, and a timer circuit for inputting numerical values is connected to the input section of the microcomputer device. A display that displays the time set value and a start/stop circuit that starts and stops external devices are connected, and the RAM in the microcomputer storage unit that stores the time set value and the clock circuit where the time is set are connected to the commercial power supply and battery. There is a time control device characterized in that it is operably connected to both.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

The drawing shows a microcomputer device equipped with an example of the device of the present invention. In the drawing, a microcomputer 1 includes a processing unit (CPU) 2, a ROM serving as a storage unit
3. R, AM4. Input section 5. Input/output section 6. High output 7.8
and a data bus 9. key switch 1
0 is connected to the input section 5. A clock circuit 11 for counting time is connected to the input/output section 6. The display 12 is connected to the output section 7. The start/stop circuit 13 is connected to the output section 7 . The external device 14 is connected to the start/stop circuit 13 . The commercial power supply 15 outputs, for example, 100V. The DC stabilizing circuit 16 converts the voltage from the commercial power supply 5 into DC and outputs it to a voltage Vcc' of, for example, about 5.5 cm. Power supply control 17 includes DC stabilization circuit 16 and battery 1
It is connected to 8. The output voltage 19 of the power supply control 17 is supplied to the RAM 4 and the clock circuit 11. The power supply control 17 receives the voltage Vcc from the DC stabilization circuit 16.
(5V) is 5■, the voltage V of DC stabilizing circuit 2
cc is output as the output voltage 19, and the voltage Vcc is 4
．． If it is less than 75 V, the voltage of battery 18 is set to output voltage 19
Output as . Further, the power supply control 17 outputs a signal 20i to the RAM 4 to stop its operation when the voltage Vcc from the DC stabilizing circuit 2 is 4.75 V or less.

To set the clock and time setting values, each time the minute or hour key switch 10 is pressed, the clock and time specified RAM 4 will be set.
Add 1 minute or hour to . In this case, the minutes are 6
The time is set to 0 at 0, and the time returns to 0 at 24. The display 12 displays the contents of the designated RAM 4.

To set the time to the clock circuit 11, when the time set flag is ON, the input/output section 6 is set to output and the RAM 4 is set.
Set the contents of. Further, to read the time from the clock circuit 11, when the time set flag is OFF, the input/output unit 6 is set to input, and the read time is set in the RAM 4.

Next, the operation of an example of the apparatus of the present invention described above will be explained.

As mentioned above, when the time and time value are set for scheduled operation, if the time of the clock circuit 11 and the time setting value match, the arithmetic processing section 2 sends a signal to the output section 8, Relay ON of start/stop circuit 13
Or turn it off. Accordingly, the external device 14 is started or stopped.

Further, since the RAM 4 and the clock circuit 11 can be operated with a battery, they can be operated with a battery after the commercial power source 15 is disconnected. Therefore, the power consumption for operating these devices can be reduced.

Furthermore, RAM 4, key switch 10 and display 12
Since the clock and time value can be easily set, there is no need to reset the clock and time value even when the commercial power supply 15 is restarted after being disconnected. Therefore, the external device 14 can be operated on an uninterrupted schedule.

Furthermore, in the present invention, by storing a specific code in the eRAM 4 when setting the clock or time value, it is possible to notify that the clock or time value has already been set when the commercial power supply 15 is restarted after being disconnected. can. This shows that the external device 14 may be operated on a scheduled basis immediately upon restart.

In addition, the key switch 10 for setting the time and time value is configured with three keys: minute, hour, and data set, and when two keys are pressed at the same time in combination of minute and data set and time and data set, , RAM4 adds +1 to the minute or hour.

This makes it possible to prevent erroneous operations. moreover,
If these keys are pressed continuously for a certain period of time, the number of times the keys are pressed can be reduced by configuring the RAM 4 to continuously add the minute or hour settings at a certain period.

As described above, according to the present invention, when setting time values for starting and stopping external devices in scheduled operation controlled by a microcomputer, it is not necessary to reset the clock and time values when restarting after power-off. ,
The number of components is small, and the cost of the device can be reduced.

[Brief explanation of the drawing]

The drawing is a configuration diagram showing a computer device equipped with an embodiment of the device of the present invention. 1... Microcomputer, 2... Arithmetic processing unit,
3... ROM14... RAM110... Key switch, 11... Clock circuit, 12... Display, 13...
... Start/stop circuit, 14... External device, 15... Commercial power supply, 17... Power supply control, 18... Battery.

Claims (1)

[Claims] 1. In a microcomputer device that controls scheduled operation, a clock circuit for counting time and a key switch for inputting numerical values are connected to the input section of the microcomputer device, and the output section has a clock circuit for counting time and a key switch for inputting numerical values. A display that displays values and a start/stop circuit that starts and stops external devices are connected, and the RAM in the microcomputer memory that stores time settings and the clock circuit that sets the time operate on both commercial power and batteries. A time control device characterized in that it is connected to these devices. 2. The RAM in the microcomputer storage section is characterized by storing a specific code when setting the clock and time values, and notifying that the clock and time values have been set when the computer is restarted after turning off the commercial power supply. A time control device according to claim 1. 3. The key switches for setting the time and time values are minute set, hour set, and data set. Two keys are pressed at the same time for the combination of minute set and data set, and time set and data set, respectively. 3. The time control device according to claim 1, wherein the time control device adds +1 to the minutes and hours in sexagesimal or 24-decimal notation when the time is changed. 4. The key switch is characterized in that when the combination of minute and hour setting keys is pressed continuously for a certain period of time, the minute and hour settings are continuously added at a certain period. Time control device as described in section.