JPS62151908A - Document editing processing device - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a document editing processing device, and particularly to a document editing processing device of a type that operates using a battery as a power source.

[Conventional technology]

In handheld word processors and desktop calculators that use batteries as a power source, when the batteries are exhausted and their remaining capacity is reduced, the power supply voltage drop becomes excessive during heavy loads, causing malfunctions. Particularly, devices with a built-in printer or floppy disk device have a high load current during these operations, so there is a high chance of malfunction in the print processing mode or floppy disk access processing mode.

For this reason, it has been proposed to detect and alert the user when the battery voltage drops to a level that would cause a malfunction during printing processing (for example, Japanese Patent Laid-Open Publication No. 57-10824).

[Problem that the invention seeks to solve]

When such a warning is issued, the user replaces the battery and reuses it, but document editing processing devices have a light-load processing mode that does not use a printer or floppy disk device, and such light-load processing In this processing mode, it was uneconomical to replace available batteries.

Therefore, an object of the present invention is to propose a document editing processing device that can effectively use batteries.

[Means for solving problems]

The present invention provides a central processing unit, a program memory for storing a data processing program executed by the central processing unit, a work memory, a keyboard for inputting one document data and a processing mode command, and a Document editing processing by the data processing program according to input from the keyboard, comprising a liquid crystal display, a printer, a RAM pack, and/or a floppy disk device that are driven according to execution of a data processing program, and a battery that supplies power to these; In a document editing processing device that executes a processing mode, a print processing mode, a RAM pack and/or a floppy disk device access processing mode, a battery voltage detection unit and a battery voltage reference value necessary for executing the processing mode are set in each processing mode. The battery voltage reference value output from the reference voltage setting means corresponding to the commanded processing mode is compared with the battery voltage obtained from the battery voltage detection section. executable/infeasible determination processing means for determining whether or not a commanded processing mode is executable; and an executable display that indicates that the commanded processing mode cannot be executed based on the determination result and also displays an executable processing mode. A processing means is provided.

[Effect]

According to the above configuration, the execution possibility determination processing means is
Compare the battery voltage reference value required to execute the commanded processing mode with the current battery voltage to determine whether or not the processing mode can be executed, and if execution is impossible. The executable/unexecutable display processing means indicates that the process is not executable, and also displays the process mode that is executable at the battery voltage at the remaining battery capacity. Therefore, the user can command execution in the executable processing mode.

As an example of this document editing processing device, when the print processing mode cannot be executed, a display is displayed indicating that the document editing processing mode and the RAM pack access processing mode can be executed.

When both a RAM pack and a floppy disk device are provided, the first processing mode that becomes inoperable is the floppy disk device access processing mode, but in this case, the document editing processing mode, RAM pack access processing mode, and print The processing mode is displayed as executable.

〔Example〕

FIG. 2 is an overall block diagram of the document editing processing device according to the present invention, in which a main control circuit 100. A RAM pack (memory package with a backup battery, RA, and M internally) 200 as an external storage device, a floppy disc device (hereinafter referred to as FDD) 300, a cassette file (cassette tape recorder) 400, a printer 500, a liquid crystal display 600, and a keyboard 700, and a power supply device 800 which mainly includes batteries and supplies power to them.

The main control circuit 100 includes a central processing unit (hereinafter referred to as CPU) 101 which is a program storage type calculation unit;
A program memory 102 that stores a data processing program executed by the CPU10I so that the device functions as a document editing processing device after power is turned on; and a document editing processing work memory 103 that stores input document data. , a character generator 104 that stores data of characters and symbols expressed in a dot matrix using character codes as indexes, and the RAM pack 200.
RAM pack controller 105 mediates access to
, a floppy disk controller 1-roller (hereinafter referred to as FDC-6) 106 that mediates access to the FDD 300, a cassette file controller 107 that mediates access to the cassette file 400, and a printer controller that mediates access to the printer 500. 108, a display controller 1-roller 109 that mediates the driving of the liquid crystal display 600, a keyboard controller 110 that mediates data exchange with the keyboard 700, and a power supply voltage detection unit 111 that digitizes a power supply voltage level signal and provides it to the CPU10I. These are connected to the CPU 10 via a bus 12.

FIG. 3 is a block diagram of a power supply device 800, which includes a battery 801 and a DC converter that converts the terminal voltage VB of the battery 801 into drive voltages Vl, 1 to V L 6 required by load elements and outputs the drive voltages Vl, 1 to V L 6.
- A DC converter 802 and a voltage level signal generating section 804 that detects the voltage VB of the battery 801 and supplies a power supply voltage level signal to the voltage detecting section 111 via a signal line 803. Note that V L t is the drive voltage of the main control circuit 100, Vt, 2 is the drive voltage of the RAM pack 200, V L
, s is the drive voltage of the printer 500, VL4 is the FDD3
00 (7) Drive voltage, Vl, 5 is cassette file 4
00 driving voltage.

Figure 4 shows the discharge characteristics of the battery 801, and the vertical axis Va is the battery 801.
The terminal voltage of , and the horizontal axis t shows the discharge time. As is clear from the figure, the terminal voltage Va of the battery 801 decreases as it is consumed and its remaining capacity decreases.

Further, FIG. 5 shows a load characteristic showing the voltage drop amount ΔVa in which the terminal voltage Va of the battery 801 drops due to the load current when each load element connected to the power supply device 800 is in an operating state according to each processing mode. It is. The battery 801 has an internal resistance R, and the terminal voltage VB is the value obtained by subtracting the voltage drop across the internal resistance R due to the load current I+ from the electromotive force EB (VB = Ea It, R). The more the driving processing mode is executed, the more the battery 801 is consumed and the electromotive force decreases, or the internal resistance R
The larger the amount of drop ΔVB is, the larger the amount of drop ΔVB is.

Even if the DC-DC converter 802 has an output voltage stabilization control function, there is a limit to its control range, and therefore, in order to reliably execute the processing mode, there is a limit to the reduction in the terminal voltage VB of the battery 80. . The lower limit value of the terminal voltage VB required to reliably execute each commanded processing mode depends on the discharge characteristics of the battery 801, the load characteristics, the stabilization control ability of the DC-DC converter 802, and the load element (processing mode). Based on the relationship, it can be calculated in advance in correspondence with each processing mode.

The calculation results are tabulated as battery voltage reference values corresponding to each processing mode, as shown in Figure 6.
Battery voltage reference value area 102 of program memory 102
It is stored in binary number in a.

Incidentally, VBI is the battery voltage reference value necessary for executing the document editing processing mode in which the main control circuit 100 operates to perform input processing, editing processing, and display processing, and VB2 is the RAM pack access processing for accessing the RAM pack 200. VB8 is the battery voltage reference value necessary to execute the print processing mode that drives the printer 500, and VB4 is the battery voltage reference value necessary to execute the FDD access processing mode that accesses the FDD 300. The necessary battery voltage reference value, V B I5, is the battery voltage reference value necessary to execute the cassette file access processing mode that accesses the cassette file 400, and Vat>
The relationship is vBsVBII > VBx > VBI. However, this magnitude relationship changes depending on the voltage fluctuation tolerance of the load element driven in each processing mode.

FIG. 7 shows a data processing program 900 by the CPU I0I in the document editing processing device as described above. The document editing processing program 910 executes input processing of key operation data from the keyboard 700, document editing processing, and display processing. Command mode execution possibility determination processing program 92
0 indicates that the processing mode commanded from the keyboard 700 during the execution process of the document editing processing program 910 is
RAM pack access processing mode for accessing the RAM pack 200 or FDD for accessing the FDD 300
A processing mode that is started when corresponding to the access processing mode, the cassette file access processing mode that accesses the cassette file 400, or the print processing mode that drives the printer 500, and the terminal voltage VB of the battery 801 at that time is commanded. It is determined whether the voltage is equal to or higher than the voltage reference value sufficient to execute the processing mode, and if the voltage is equal to or higher than the reference value, the program 930, 9 for the corresponding processing mode is executed.
Branch to execution of 40°950.960. If it is less than the reference value, it is displayed on the display 600 that the processing mode cannot be executed, and a processing mode that is executable at the terminal voltage VB is displayed on the display 600.
00 and returns to the document editing processing program 910.

The details of this command mode execution possibility determination processing program 920 are shown in FIG. In this processing program, first, in processing step 921, the terminal voltage V of the battery 801 at that time is
B from the power supply voltage detection unit 111 to the current power supply voltage level VBO
Import as. In processing step 922, battery voltage reference values VB1 to VBII corresponding to the commanded processing mode (for example, VB4 if FDD access processing mode is commanded) are determined.
is read from the memory area 102a. Processing step 92
3, the current power supply voltage level Vao and the battery voltage reference value VB4
If Vao≧VB4, the process moves to step 924 and executes the program 950 for the instructed FDD access processing mode.

However, if V 80 < VR4, the commanded processing mode cannot be reliably executed.

Proceeding to processing step 925, the display 600 displays characters or symbols to indicate that the processing mode cannot be executed. In processing step 926, the memory area 102a is read again and referenced, and the current power supply voltage level V
An executable processing mode having a battery voltage reference value equal to or lower than BO is extracted, and the process moves to processing step 927 to display this executable processing mode in characters or symbols on the display 600. In processing step 928, the document editing processing program Return to 910. Incidentally, it is displayed that the executable processing modes in this example are document editing processing mode, R, AM pack access processing mode, print processing mode, and cassette file access processing mode, so the user can For storage, it is possible to specify the RAM pack 200 or cassette file 400 and execute the process of storing it.

As is clear from FIG. 5, in this document editing processing device, the load current is large during FDD access processing and print processing, and the battery voltage VB fluctuates greatly, whereas during document editing processing and RAM pack access processing, The load current is extremely small and the variation in battery voltage VB is also considerably small. Therefore, even if the battery 801 is exhausted and it becomes impossible to execute the FDD access processing mode or the print processing mode, document creation and editing processing using the RAM pack 200 as an external storage device can be executed satisfactorily thereafter. It can be seen that the battery 801 can be effectively consumed.

Note that in this example of the document editing processing device, in order to store document data, the remaining battery capacity of the RAM pack 200 is required to be able to execute at least the access processing mode. It is preferable to determine whether it is executable and display the result.

〔Effect of the invention〕

As described above, according to the present invention, a reference value of battery voltage necessary for reliably executing a plurality of processing modes that can be executed by the document editing processing device is stored for each processing mode. Then, in response to the processing mode commanded from the keyboard, it is determined whether the battery voltage at that time is equal to or higher than the battery voltage reference value required to execute the processing mode, and if it is not possible to execute the processing mode, the In addition to displaying this, other processing modes that can be executed with the battery voltage are also displayed, making it possible to prevent the device from malfunctioning due to a voltage drop due to insufficient remaining battery capacity, and to Since the processing mode can be executed according to the remaining battery capacity, the battery can be used effectively.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention, and FIG. 1 is a flowchart of a command mode execution determination process, FIG. 2 is an overall block diagram of a document editing processing device, FIG. 3 is a block diagram of a power supply device, and FIG. 5 is a battery discharge characteristic diagram, FIG. 5 is a battery voltage fluctuation characteristic diagram for processing modes, FIG. 6 is a battery voltage reference value area of the program memory, and FIG. 7 is a block diagram of a data processing program. 101...Central processing unit, 102...Program memory, 102a...Battery voltage reference value area of program memory, 111...Power supply voltage detection unit, 200...
...Printer, 300...Protuppy disk device,
500... Printer, 600... Liquid crystal display, 700... Keyboard, 800... Power supply device, 8
01...Battery, 920...Command mode execution possibility determination processing program, 923...Command mode execution possibility determination processing, 925...Command mode execution impossibility display device, 927
...Executable processing mode display processing.

Claims (1)

[Claims] 1. A central processing unit, a program memory for storing a data processing program to be executed by the central processing unit, a work memory, a keyboard for inputting document data and processing mode commands, and a computer for executing the data processing program by the central processing unit. A liquid crystal display, a printer, a RAM pack, and/or a floppy disk device are driven according to execution, and a battery supplies power to these, and the document editing process is performed by the data processing program according to input from the keyboard. In a document editing processing device that executes a processing mode, a print processing mode, a RAM pack and/or a floppy disk device access processing mode, a battery voltage detection unit and a battery voltage reference value necessary for executing the processing mode are processed. Compare the magnitude of the battery voltage obtained from the battery voltage detection section with the reference voltage setting means stored in correspondence with the mode, the battery voltage reference value outputted from the reference voltage setting means corresponding to the commanded processing mode, and an executable/infeasible determination processing means for determining whether or not a commanded processing mode is executable; and an executable/infeasible processing means for displaying that the commanded processing mode is not executable and displaying an executable processing mode based on the determination result. 1. A document editing processing device comprising: display processing means.