JP2609946B2 - Power control device - Google Patents

Description

The present invention relates to a power supply control device that controls on / off of a power supply in an electronic device having a timer function and a numeric key switch.

(B) Conventional technology As an electronic apparatus, there is an electronic apparatus having a built-in timer means, such as an audio apparatus disclosed in Japanese Utility Model Application Laid-Open No. 61-191617. Such an electronic device includes timer means having a clock function, and sets an absolute time to activate an on-timer function for automatically turning on the power and an off-timer function for automatically turning off the power, or A timer means that does not have a clock function, and sets the time for activating the on-timer function and the off-timer function based on the relative time from the time at which the time setting operation was performed, thereby turning off the power supply for the set time or after the set time. It can be turned on automatically and / or turned off automatically.

On the other hand, some electronic devices include a numeric key switch such as a ten key provided corresponding to each numerical value from 0 to 9. For example, in a synthesizer type tuner device, a numeric key switch is provided,
The reception frequency can be directly set by the numeric key switch, the numeric key switch is also used as a preset switch, and the reception frequency stored in advance corresponding to each of the numeric key switches is set to the numeric key switch. There is one that can be called by operating.

(C) Problems to be Solved by the Invention By the way, recent electronic devices are configured to be controlled by a microcomputer, and input management of operation switches for operating functions provided in the electronic device is performed by the microcomputer. I have. For this reason, when an electronic device is multifunctional, such as a receiver device in which the above-described tuner device is incorporated in an audio amplifier device having various functions, the number of input / output ports of a microcomputer for controlling the functions tends to be insufficient. . In addition, if such multi-function electronic equipment is provided with the above-described on-timer function and off-timer function, switches to be used when using these functions, switches for switching those functions, and those functions are required. A large number of switches, such as a switch for setting time, must be added, and a shortage of input ports of the microcomputer becomes a problem. In this case, it is conceivable that the switch is also used. However, simply using the switch also complicates the operability and causes a problem that the operability is deteriorated.

(D) Means for Solving the Problems The present invention is a power supply control device made in view of the above points, and includes a timer means for measuring time, a timer switch for operating the timer means, and a numeric keypad. Input detection means for detecting whether the timer switch has been continuously operated for a predetermined time or more while detecting an input state of the switch; and an operation state of the timer switch detected by the input detection means. A timer setting means for setting a time to be measured by the timer means in accordance with the above, and a power supply is turned on when it is detected by the input detection means that the time when the timer switch is continuously operated reaches a predetermined time. The control is set to the on-timer mode, and the timer switch is continuously operated by the input detection means. Power control means set to an off-timer mode for performing power-off control when it is detected that the performed time does not reach a predetermined time, when the timer switch is continuously operated for a predetermined time or more. The timer setting means sets the time measured by the timer means in response to the operation of the numeric key switch, and the power supply control means controls the power to be turned on. Is not operated continuously for a predetermined time or more, the time set by the timer means is sequentially switched and set by the timer setting means according to the number of times the timer switch is operated, and the power supply control is performed. Control to turn off the power is performed by means.

(E) Operation The present invention provides an electronic device having a timer function and a numeric key switch, wherein the on-timer function and the off-timer function are switched according to the continuous operation time of the timer switch. When the operation time reaches a predetermined time, the on-timer function is activated, and the time of the on-timer function is set by a numeric key switch, and when the continuous operation time of the timer switch does not reach the predetermined time, the operation is turned off. The timer function is activated, and the time of the off timer function is set by sequentially changing the preset time in accordance with the number of times of operation of the timer switch, so that the on timer function and the off timer function can be performed by a single switch. Can be activated selectively, and the timer function Is obtained by preventing the operation of complicated the number of switches engaged Suffice minimized.

(F) Embodiment FIG. 1 is a block diagram showing an embodiment in which a power supply device according to the present invention is used for a receiver device. In the figure,
(1) a power supply circuit for generating an operating voltage to be supplied to each circuit in the device, (2) power supply control means for controlling on / off of the power supply circuit (1), and (3) an operation state of the device. A display for displaying, (4) a display driving means for driving the display (3), (5) a timer means for measuring time, and (6) a time for decoding the time measured by the timer means (5). Display control means for controlling the display drive means (4);
(7) a PLL circuit for generating a local oscillation frequency of the tuner section; (8) a crystal oscillator for generating a reference clock for the PLL circuit (7) and supplying an operation clock to the timer means (5); 9) The timer means (5)
Timer switch for activating (10) is 1 to 10
Numeric key switches provided corresponding to the respective numerical values up to (11), a direct-in switch operated when the receiving frequency by the tuner unit is directly set by the numeric key switch (10), and (12) Input detection means for detecting the input state of the timer switch (9), the numeric key switch (10) and the direct-in switch (11), and (13) the timer switch (12) detected by the input detection means (12) 9) a timer setting means for setting a time to be measured by the timer means (5) according to the operation state; (14) a numeric key switch (10) detected by the input detection means (12); Set reception frequency data for determining the local oscillation frequency created by the PLL circuit (7) according to the operation state of the in-switch (11). Data setting means, (15)
Is connected to the receiver device shown in FIG. 1, and supplies a stop signal for stopping an audio source device (not shown) such as a CD player and a tape deck, which is controlled centrally by the device, to the power control means (2). Is a stop signal generating means that is generated in accordance with the operation state of.

The portion surrounded by a broken line in FIG. 1 indicates a portion configured by a microcomputer. The microcomputer and the crystal oscillator (8) are configured so that an operating voltage is applied from another auxiliary power supply (not shown) when the power supply circuit (1) is turned off.

Next, the operation of FIG. 1 will be described with reference to the flowchart shown in FIG.

To set the timer mode for operating the on-timer function and the off-timer function, first, the timer switch (9) is operated. The operation state of the timer switch (9) is detected by the input detecting means (12). If the continuous operation time of the timer switch (9) is longer than 3 seconds (step), the power supply is automatically turned on after the set time. Is turned on (step). on the other hand,
If the continuous operation time of the timer switch (9) is within 3 seconds (step), the power supply is automatically turned off after a set time, and the power supply is turned off automatically. For example, the maximum time until the power supply is turned off is 90 minutes. Is set (step).

In the on-timer mode, all digits of the frequency display section for displaying the reception frequency of the display unit (3) become "0", blink, and recognize that the on-timer mode has been entered. ) Enters a time setting state for setting how many hours later the power is turned on (step). In the on-timer mode, the operation state of the timer switch (9) is monitored in steps, and when the operation of the timer switch (9) is detected again by the input detecting means (12), the timer mode is released. (Step).

In the time setting state described above, use the numeric key switch (1
0) completes the time setting, and the timer setting means (13)
When the time measured by the timer means (5) is set to the power-on time (step), the power supply circuit (1) is turned off by the power control means (2) and the timer means (5) is set. ) Is performed (step). When the set time is measured by the timer means (5), the power supply control means (2)
As a result, the power supply circuit (1) is turned on (step), and the power supply is turned on according to the set time.

The timer means (5) is set with numerical data according to the set time, and counts down the numerical data every time the reference clock generated from the crystal oscillator (8) is counted. When it becomes "0", the set time is measured.

On the other hand, when the continuous operation time of the timer switch (9) is within 3 seconds and the timer enters the off timer mode, the initial setting of the off timer is performed (step), and “90” is displayed on the off timer display section of the display (3). Lights up, indicating that the off timer has been set after 90 minutes. Then, the input detection means (12) detects whether or not the timer switch (9) is operated again within three seconds (step,
as well as). If the timer switch (9) is operated during that time, the continuous operation time of the timer switch (9) will be 3 hours.
The set time of the off timer is reduced depending on whether it is within seconds or more than 3 seconds, or the mode shifts to the on timer mode (step). If the continuous operation time of the timer switch (9) is within 3 seconds, the set time of the off timer is reduced (step). The degree of the decrease is determined every time the operation of the timer switch (9) is performed once. Decrease by 10 minutes. After that, return to the step again, and within 3 seconds a new timer switch (9)
Is operated again. If the operation of the timer switch (9) is not performed even after the lapse of 3 seconds, it is considered that the time setting of the after-timer is completed, and it is determined whether the set time of the off-timer is "0". Detect (step). Then, if the set time of the off timer is "0", the timer mode is canceled (step).

By the way, as described above, the set time is reduced by 10 minutes at a maximum of 90 minutes by the number of times of operation of the timer switch (9) within 3 seconds. 0 ".

On the other hand, if the set time of the off timer is other than “0”, measurement of the set time of the off timer is started (step). Incidentally, the measurement of the set time of the off timer is also performed by the timer means (5) in the same manner as in the case of the on timer.

The set time is measured by the timer means (5), and when the off-timer time is reached, a stop signal for stopping the audio source device is generated from the stop generation means (15) (step), and the audio in the operating state is generated. The source device is brought into the stop state. Then, the power supply circuit (1) is turned off by the power supply control means (2) (step), and the power supply is turned off according to the set time.

In the above-described embodiment, the setting time of the off timer is set to be set at intervals of 10 minutes with 90 minutes as a maximum. However, the present invention is not limited to this, and the maximum setting time is not limited to this. Of course, the time to be decreased may be changed, and conversely, the set time of the off timer may be increased by a predetermined time from “0”.

Further, in the above-described embodiment, the on-timer function is operated based on the relative time from the operation time of the time setting. However, the on-timer function may be operated based on the absolute time using timer means having a clock function. I can do it.

(G) Effects of the Invention As described above, the present invention switches the on-timer function and the off-timer function in accordance with whether or not the time during which the timer switch is continuously operated has reached a predetermined time. The same timer switch can be operated even when either the on-timer function or the off-timer function is operated, and the operability can be improved. When activating the on-timer function, the time is set by numerical values using the numeric key switch, and when activating the off-timer function, the time is set by the number of times the timer switch is operated. The on-timer time for turning on the power using the on-timer function is set in detail according to the start time and wake-up time of the program It is often used in situations where time setting accuracy is not required, such as when going to bed or when ending the program according to the length of the program. Setting the off timer time when using the off timer function Can be performed by operating only the timer switch following the operation of the timer switch when the off timer function is operated, and the operability of setting the time of the off timer can be improved.

[Brief description of the drawings]

FIG. 1 is a block diagram showing one embodiment of the present invention, and FIG. 2 is a flowchart provided for explaining the operation of the present invention. Description of main figure numbers (1) Power supply circuit (2) Power supply control means (3)
... Display, (5) ... Timer means, (7) ... PLL
Circuit (8) Crystal oscillator (9) Timer switch (10) Numeric key switch (11) Direct in switch (12) Input detection means (13)
... Timer setting means, (14) ... Data setting means, (1
5) Stop signal generation means.

Claims (1)

(57) [Claims] 1. An electronic device having a number key switch and an on-timer function for turning on a power supply and an off-timer function for turning off a power supply, a timer means for measuring time, and an on-timer function and an off-timer function are operated. A timer switch that is operated at the time of inputting, and an input detection that detects an input state of the numeric key switch and the timer switch and detects whether the timer switch is continuously operated for a predetermined time or more. Means, and when the input detection means detects that the time when the timer switch has been continuously operated has reached a predetermined time, the time inputted by the numeric key switch is taken as the time measured by the timer means. The timer is set by the input detection means. When it is detected that the time that the switch has been continuously operated does not reach the predetermined time, the time set by changing the timer switch by a predetermined unit time for each operation according to the number of times of operation of the timer switch is set to the time. A timer setting means for setting the time measured by the timer means; and an on-timer for activating an on-timer function when it is detected by the input detection means that the time when the timer switch is continuously operated reaches a predetermined time. A power source that is set to a timer mode and that is set to an off-timer mode that activates an off-timer function when the time that the timer switch has been continuously operated is not reached a predetermined time by the input detection means. Control means, when operating the on-timer function, by using the numeric key switch to numerically Performs during setting, the power supply control apparatus being characterized in that the manner perform time set by the operation count of the timer switch when operating the off timer function.