KR20040073011A - Method for displaying battery remain time in portable electronic device - Google Patents

Abstract

PURPOSE: A method for displaying residual time of a battery in a portable electronic equipment is provided to detect and display more accurate residual time of a battery. CONSTITUTION: An optical disk is inserted into a portable optical disk unit(S10). A microcomputer discriminates a type of the optical disk(S11). If the optical disk is a DVD(Digital Versatile Disk), a current operating mode is set up as a high current mode and a look-up table corresponding to the high current mode is selected(S12,S13,S14). If the optical disk is a CD(Compact Disk), a current operating mode is set up as a low current mode and a look-up table corresponding to the low current mode is selected(S15,S16). It is judged whether a user requests to display residual time of a battery(S17). The microcomputer confirms battery voltage and current values for operating the measured voltage and current values(S18). The microcomputer controls an OSD(On Screen Display) generator for displaying the residual time of the battery corresponding to the operated voltage value(S19). The microcomputer discriminates a battery valid use time ending point for calculating a mean value of battery use time and the battery residual time(S20). The microcomputer updates the battery residual time set in the corresponding look-up table with the calculated mean value(S21).

Description

How to display remaining battery time in portable electronic devices {Method for displaying battery remain time in portable electronic device}

The present invention relates to a method for displaying battery remaining time in a portable electronic device for detecting and displaying a battery residual time indicating a usable time of a battery being used as a system power source in a portable electronic device such as a portable optical disk device. It is about.

Recently, various portable electronic devices using a limited battery power as a system power source have been developed and commercialized for convenience of portability. The portable electronic device, for example, a portable optical disk device, is shown in FIG. As described above, the optical pickup 11, the video disc play (VDP) system 12, the display 13, the microcomputer 14, the memory 15, the OSD generating unit 16, the voltage detecting unit 17, and The power supply unit 18 is configured to be included.

In addition, the portable optical disk device. The battery 19 is attached and used as a system power source. The microcomputer 14 operates and controls the VDP system according to a user's request, so that an optical disc, for example, a DVD or A series of reproducing operations for reading and reproducing data recorded on a CD or the like is performed.

On the other hand, in the power supply unit 18, the power of the battery 19 is applied as the supply power required for each constituent means, and the voltage detector 17 detects the voltage discharged from the battery 19 As shown in FIG. 2, when the battery discharge voltage is high, the battery remaining time is long, and when the battery discharge voltage is low, the battery remaining time is shortened.

Accordingly, the microcomputer 14 calculates a battery remaining time proportional to the voltage value by referring to the battery voltage value detected by the voltage detector 17, and also generates the OSD generator 16. By controlling the operation, and outputs the displayed battery remaining time, the user can predict the battery available time.

However, as shown in FIG. 2, the battery discharge voltage decreases rapidly at the cutoff point, and the battery usable time varies according to the characteristics of the battery. Thus, only the battery discharge voltage value is referred to. When the remaining battery time is detected and displayed, an incorrect battery remaining time is displayed.

Accordingly, the present invention was created to solve the above problems, and in a portable electronic device such as a portable optical disk device, a battery remaining time corresponding to a battery voltage and a current value, and a lookup table corresponding to a current operation mode are set. Remaining battery time in portable electronic devices for displaying accurate battery remaining time by updating and correcting the battery remaining time of the preset lookup table with reference to the detection and display, as well as the actually used battery time. Its purpose is to provide a labeling method.

1 illustrates a configuration of a general portable optical disk device.

2 is a graph illustrating battery discharge voltage and remaining time display in a general portable optical disk device.

3 illustrates a configuration of a portable optical disk apparatus to which a battery remaining time display method according to the present invention is applied.

4 is a graph illustrating discharge voltages of a low current mode and a high current mode divided by a battery remaining time display method according to the present invention;

5 is a flowchart illustrating a method of displaying a remaining battery time in a portable electronic device according to the present invention.

※ Explanation of code for main part of drawing

10: optical disc 11: optical pickup

12: VDP system 13: display

14: Micom 15: Memory

16: OSD generator 17: voltage detector

18: power supply unit 19: battery

20: current detector

Battery remaining time display method in a portable electronic device according to the present invention for achieving the above object, a step of determining the current operation mode, and measuring the battery voltage and current value respectively; And detecting and displaying the remaining battery time corresponding to the measured battery voltage and current values with reference to a look-up table corresponding to the current operation mode.

Hereinafter, with reference to the accompanying drawings, a preferred embodiment of the battery remaining time display method in a portable electronic device according to the present invention will be described in detail.

3 illustrates a configuration of a portable electronic apparatus to which the battery remaining time display method according to the present invention is applied. For example, an optical pickup 11, a VDP system 12, and a display 13 may be applied to a portable optical disk device. ), The microcomputer 14, the memory 15, the OSD generator 16, the voltage detector 17, and the power supply unit 18 may be included, and the current detector 20 may be further included. .

In addition, the portable optical disk device. The battery 19 is attached and used as a system power source. The memory 15 stores and manages a lookup table for each operation mode (Mode 1_LookUp Table and Mode 2_Look Up Table), and the lookup table is shown in FIG. 4. As shown, the low current mode and the high current mode may be stored separately.

On the other hand, in the low current mode look-up table (Mode 1_Look Up Table), for example, when the optical disk 10 inserted into the device is a CD, relatively long battery remaining times are set in a table form. In the high current mode look-up table (Mode 2_Look Up Table), for example, when the optical disc 10 inserted into the apparatus is a DVD, relatively short battery remaining times are recorded and set in a table form. .

The voltage detector 17 detects a voltage value discharged from the battery 19 and outputs the voltage to the microcomputer 14. The current detector 20 discharges the battery 19 from the battery 19. The current value is detected and output to the microcomputer 14, and the microcomputer 14 selects and refers to any detected lookup table corresponding to the detected battery voltage and current value and the current operation mode. A series of operations for displaying the remaining battery time is performed, which will be described in detail below.

5 is a flowchart illustrating a method of displaying a remaining battery time in a portable electronic device according to the present invention. For example, when the optical disk 10 is inserted and seated in the portable optical disk device (S10), the microcomputer In 14, the type of the optical disc is determined by referring to navigation information and the like read out from the optical disc (S11).

As a result of the determination, when the type of the optical disc is a DVD (DVD) requiring high current consumption (S12), the current operation mode is set to the high current mode (S13), and the lookup stored in the memory 15 is already stored. Among the tables, a lookup table corresponding to the high current mode (Mode 2_Look Up Table) is selectively loaded (S14).

On the other hand, if the type of the optical disc is a CD (CD), as a result of the determination, the current operation mode is set to the low current mode (S15), and the lookup table previously stored in the memory 15 is stored in the low current mode. The corresponding lookup table (Mode 1_Look Up Table) is selectively loaded (S16).

Thereafter, the microcomputer 14 performs a series of reproducing operations of reading and reproducing the data recorded on the optical disc 10 by operating the VDP system 12 according to a user's request. When the user requests to display the remaining battery time (S17), the microcomputer 14 checks the measured battery voltage and current values from the voltage detector 17 and the current detector 20, and then measures the measured values. A series of calculation processes are performed to multiply the current value by a predetermined weight, for example, a weight of '10% ', and add the value to the measured voltage value as a correction value (S18).

Then, the battery remaining time corresponding to the voltage value calculated by the above calculation process is detected by referring to the lookup table for each mode, and then the operation of the OSD generating unit 16 is controlled to display the output. For example, when the voltage value calculated through the calculation process is '15 V 'and the current operation mode is the high current mode corresponding to the DVD, the lookup table of the high current mode is shown. 2_Look Up Table), the battery remaining time is displayed as '30 minutes'.

On the other hand, when the voltage value calculated through the calculation process is '15 V 'and the current operation mode is the low current mode corresponding to the CD, the look-up table of the low current mode (Mode 1_Look Up Table) By referring to, the remaining battery time is displayed as '45 minutes'.

On the other hand, the microcomputer 14 performs the battery remaining time display operation as described above, and when the power of the battery bound in the device is just before the discharge, for example, the voltage of the battery to be used as the system power The time point less than the predetermined level may be determined as the end of the battery effective use time (S20), and the average value of the battery use time actually used up to that point and the remaining battery time stored in the corresponding lookup table are calculated.

In operation S21, a series of lookup table correction operations for correcting and updating the calculated average value with the remaining battery time set in the corresponding lookup table are performed.

Therefore, the remaining battery time corresponding to the battery voltage and current values is detected and displayed based on the lookup table for each operation mode, and the remaining battery time set in the lookup table is updated and corrected to a new value by learning. Accurate remaining time display is possible.

For reference, the present invention may be applied to various other portable electronic devices other than the portable optical disk device, and the lookup table may be divided into three or more lookup tables according to an operation mode.

Or more, preferred embodiments of the present invention described above, for the purpose of illustration, those skilled in the art, within the technical spirit and the technical scope of the present invention disclosed in the appended claims below, to further improve various other embodiments Changes, substitutions or additions will be possible.

The remaining battery time display method of the portable electronic device according to the present invention constructed and configured as described above, in the portable electronic device such as a portable optical disk device, after measuring the battery voltage and the current value, respectively, the measured battery voltage and current The remaining battery time corresponding to the value is detected and displayed by referring to the lookup table corresponding to the current operation mode, and the average value of the actual battery life used and the remaining battery time set in the lookup table is displayed. By updating and correcting the battery remaining time of the lookup table corresponding to the present invention, it is a very useful invention to be able to detect and display more accurate battery remaining time.

Claims (5)

Determining a current operation mode and measuring a battery voltage and a current value, respectively; And And displaying the remaining battery time corresponding to the measured battery voltage and current values by referring to a look-up table corresponding to the current operation mode. Way. The method of claim 1, The look-up table, the battery remaining time display method of the portable electronic device, characterized in that the battery remaining time is stored separately divided into a low current mode and a high current mode. The method of claim 2, The second step may include: a lower first step of adding a correction value corresponding to the battery current value to the measured battery voltage value; And In the portable electronic device, the battery remaining time corresponding to the sum of the battery voltage values is detected and displayed by selecting any one of the lookup tables among the lookup tables stored in the low current mode and the high current mode. How to display the remaining battery time. The method of claim 1, And updating and correcting the remaining battery time set in the look-up table immediately before the battery is completely discharged. The method of claim 3, wherein In the step 3, the average value of the battery life time actually used and the remaining battery time set in the look-up table are calculated, and then updated and corrected by the remaining battery time of the look-up table corresponding to the current operation mode. How to display the remaining battery time on the device.