JPH05197455A - Battery consumption display device - Google Patents

Abstract

PURPOSE:To communicate an exact alarm without any oversight to a computer user by alarming the consumption of a battery at a display screen. CONSTITUTION:When a power supply voltage is decreased to be less than a normal value by a power consumption, a power monitoring device 5 communicates the consumption of a battery to a central processing unit 2 by setting a communication signal line 9 to be 1. The central processing unit 2 reads the value of the communication signal line 9, and when the value is 1, the central processing unit 2 repeats a display signal line 8 to be 1 and 0 in almost one second interval. As a result, a display device 3 repeats the black and white reversal of a screen while the present display is being operated. Thus, a user can exactly recognize the consumption of the battery.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention, in an electronic computer mainly composed of a power supply battery, monitors the consumption of the power supply battery and informs the battery consumption in advance by a display device in order to prevent system down due to battery consumption. The present invention relates to improvement of a battery consumption display device.

[0002]

2. Description of the Related Art Conventionally, in an electronic computer that operates using a power supply battery, an LED lamp for normal operation display is provided near the power supply switch or at a position easy for an operator to see, and the voltage is lowered to a certain value by a voltage detection circuit. Then, the user is informed of battery consumption by blinking the LED lamp.

FIG. 5 shows a conventional technique. Reference numeral 11 is an input device, 12 is a central processing unit, 13 is a display device, 14 is a power supply, 15 is a power supply monitoring device, 16 is an LED, and 17 is a switch for inverting the display of the display device in black and white. The display device 13 has a display control input line 18 for inverting the display in black and white. When the input signal is 0, the display color is black and the background color is white, and when the input signal is 1, the display color is white and the background color is black. .. The input of this input line 18 can be switched by the switch 17, and the display color
The base color can be selected.

The power source 14 is a battery, and when power is consumed by using a computer, the battery eventually runs out and power cannot be supplied. To monitor this, the power supply monitoring device 15 is connected to the power supply battery 14, and the power supply battery 1
When the battery 4 is about to run out of battery, the LED 16 connected to the power supply monitoring device blinks to instruct the computer user to supply power from another power supply (such as household AC power supply) and charge the battery. There is.

[0005]

When the power supply battery is exhausted while the computer is being used and the computer is near the unusable state, LE is required.
In the method of blinking D, the computer user always
Attention needs to be paid to the ED. However, this hinders the computer user from concentrating his / her mind on the computer use itself, and as a result, there is a strong possibility that the efficiency of the work is reduced. On the other hand, if you do not notice the blinking of the LED by focusing your attention on the use of the computer, it is likely that you will suddenly encounter a stopped state of the computer due to exhaustion of the power supply battery while using the computer. In the worst case, input until then. All data etc. will be lost. In any case, it is desperate to seriously affect the usability of the computer.

The present invention has been made in consideration of the above circumstances, and it is intended to display a battery consumption warning in an easy-to-understand manner and prevent a system down caused by an operator's human error.

[0007]

DISCLOSURE OF THE INVENTION The present invention provides a display device capable of reversing the display color and the background color of an arbitrary character in an electronic computer operated by a power supply battery, and the character signal and the inversion signal. And a power supply battery that supplies power to each part of the electronic computer, and a power supply monitoring device that detects the degree of consumption of the power supply battery. When the power supply battery is exhausted, the output signal of the power supply monitoring device is provided. Is supplied to the central processing unit, and an inverted signal is sent to the display device.

[0008]

Therefore, the computer user normally operates the computer while looking at the display screen of the display device. Therefore, by issuing the battery consumption warning on the display screen, it is possible to notify the computer user of a certain warning that is not overlooked.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail based on the embodiments shown in the drawings. The present invention is not limited to this.

A system diagram of the present invention is shown in FIG. 1 is an input device, 2 is a central processing unit, 3 is a display device, 4 is a power source,
5 is a power supply monitoring device, 6 is an LED, 7 is a switch for inverting the display of the display device in black and white, 8 is an input line for display control, 9 is a notification signal line for notifying the central processing unit of the exhaustion of the power supply battery Reference numeral 10 denotes a ROM (read-only memory) that stores a program for the central processing unit to perform processing when the power battery is exhausted, and 11 denotes a signal line for the central processing unit to read the setting of the switch 7. The power supply monitoring device 5 is configured to change the state of the notification signal line 9 from 0 to 1 at the same time as making the LED 6 blink when a situation in which the LED 6 should blink (consumption of the power supply battery 4) occurs. Further, the central processing unit sets the switch 7 to the signal line 1
The value is read from 1, and the setting is normally set as it is to the display control input line 8.

FIG. 2 is a flow chart of processing of the power supply monitoring device 5. The power supply monitoring device constantly monitors the voltage of the power supply battery 4 (S1), and when the power supply voltage drops below a predetermined value due to power consumption (S2), the notification signal line 9 is set to 1 to the central processing unit. Notify the battery consumption, and then start blinking the LED connected to the power supply monitoring device (S4 to S
7). When the power supply voltage is equal to or higher than the predetermined value, the notification signal line is set to 0 (S8), and the LED remains off.

FIG. 3 is a flow chart relating to a warning process of the power supply battery exhaustion of the central processing unit 2. The central processing unit 2 reads the value of the notification signal line 9 (S9), and when the value is 1, that is, when the power supply battery is exhausted and it is likely to hinder the use of the computer (S10), The display control signal line is repeatedly set to 1 and 0 at intervals of 1 second (S11 to S1).
4) (As a result, the display device repeats the black-and-white reverse display while the current display is being performed (see FIG. 4). If the value of the notification signal line is 0, nothing is done. Since the processing of (1) is executed by the time division processing by the timer interruption, the original processing for the computer user is also executed at the same time.

Further, according to the present invention, when the user ignores the above warning, the power supply voltage is further monitored, and when the voltage further decreases, the timer is started at the same time as lighting, and a certain period of time is started. If the blinking interval is controlled to be shorter each time it elapses, the user may be concerned about the system going down, which is more effective.

[0014]

The computer user normally operates the computer while looking at the display screen of the display device. Therefore, by issuing the battery consumption warning on the display screen, it is possible to notify the computer user of a certain warning that is not overlooked. Further, since the computer user does not need to pay attention to anything other than the screen display while using the computer, it is possible to concentrate on using the computer. Furthermore, even if the screen is reversed in black and white, the displayed contents (characters, graphics, etc.) itself do not change,
It does not hinder the necessary computer operation at that time, such as the saving of urgent data.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of a battery consumption display device of the present invention.

FIG. 2 is a flowchart of the power supply monitoring device.

FIG. 3 is a flow chart for exhausting the power supply battery in the central processing unit.

FIG. 4 is an explanatory diagram showing a screen inversion state.

FIG. 5 is a block diagram showing a configuration of a conventional battery consumption display device.

[Explanation of symbols]

 1 Input Device 2 Central Processing Unit 3 Display Device 4 Power Supply 5 Power Supply Monitoring Device 6 LED 7 White / Black Inversion Switch 8 Display Control Input Line 9 Notification Signal Line 10 ROM 11 Signal Line

Claims (2)

[Claims] 1. A display device for displaying an arbitrary character and reversing the display color and the background color in an electronic computer operated by a power supply battery, and a central processing unit for transmitting the character signal and the inversion signal. And a power supply battery for supplying power to each part of the computer, and a power supply monitoring device for detecting the degree of consumption of the power supply battery. When the power supply battery is exhausted, the output signal of the power supply monitoring device is supplied to the central processing unit. A battery depleting device characterized in that an inverted signal is sent to the display device. 2. The reversal display is made to blink by displaying the reversal signal successively repeatedly, and the interval of the reversal signal is controlled to be shorter with the detection of further consumption of the power supply battery or with the passage of time. The battery consumption display device according to claim 1, wherein: