JPS61164170A - Detecting and displaying system of remaining usable time of battery - Google Patents

Abstract

PURPOSE:To easily confirm the remaining usable time of battery by detecting the voltage of battery being used in a device and selecting the corresponding pattern from the stored battery patterns. CONSTITUTION:A battery voltage detecting part 1 detects the voltages of battery at the times when the device is in waiting and the device is transmitting, and compares voltages at the times of waiting and transmitting, and outputs the voltage difference and the voltage at the time of transmission. A battery pattern storing part 2 stores several kinds of pattern of discharge characteristic at the times of waiting and transmitting according to the extent of variance. And a pattern identification part 3 refers the output of the detection part 1 to the discharge characteristics of battery stored in the storing part 2, and identifies and selects one corresponding pattern. Then remaining usable time display part 4 calculates and display the remaining time from the usable limit voltage of the device from the discharge characteristic pattern selected by the identification part 3 and voltage at the time of transmission.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to voltage detection of a battery for a portable mobile device, and more particularly to a time display method based on battery consumption.

2. Description of the Related Art Conventionally, this type of battery consumption detection method has been such that the battery consumption is detected by voltage, and the battery status is displayed on a meter or the like using a voltage corresponding to the consumption.

Problems to be Solved by the Invention However, the conventional battery consumption detection method described above has the following problems:
Since battery consumption is detected by voltage and displayed on a meter, etc., it is possible to judge whether the battery condition is usable at the time of use, but if it is usable, how much time is left to use it. It has the disadvantage of not being clear.

The present invention has been made in view of the above-mentioned conventional circumstances.
SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a novel detection and display method that eliminates the above-mentioned drawbacks of the conventional technology and allows easy recognition of remaining battery usage time.

Means for Solving the Problems In order to achieve the above object, the battery remaining usage time detection and display method according to the present invention includes a battery voltage detection section that detects battery voltage, and information patterned on battery characteristics. It is configured to include a battery pattern storage section for storing, a pattern identification section for identifying battery patterns, and a remaining usage time display section for calculating and displaying the remaining usage time.

EMBODIMENT OF THE INVENTION Next, a preferred embodiment of the present invention will be specifically explained with reference to the drawings.

FIG. 1 is a block diagram showing an example of the present invention. FIG. 1 shows an example of a pottery according to the present invention.

It is composed of a battery voltage detection section 1, a battery pattern storage section 2, a pattern identification section 3, and a remaining usage time display section 4.

The battery voltage detection unit 1 detects the battery voltage when the device is on standby and when transmitting data.

It has a function that compares the voltage at the time of transmission and outputs the difference voltage and the voltage at the time of transmission. The battery pattern storage unit 2 has a function of storing the discharge characteristics of the battery used during standby and transmission in several patterns depending on the degree of variation. The pattern identification section 3 reads the difference voltage between standby and transmission output from the battery voltage detection section 1 and the voltage during transmission, and compares them with the battery discharge characteristics stored in the battery pattern storage section 2. , and identify which battery pattern it corresponds to.

It has the ability to select one pattern. The remaining usage time display unit 4 has a function of calculating and displaying the remaining usage time from the battery discharge characteristic pattern selected by the pattern identification unit 3 based on the usage limit voltage of the device and the voltage at the time of transmission.

Next, the function and operation of the present invention will be explained. FIG. 2 is a diagram showing the discharge characteristics of the battery stored in the pattern storage section 2. As shown in FIG. Since there are variations in the characteristics depending on the condition of the battery 5, check the characteristics in advance and change from Pl to Pn (
n is any integer)! , and are stored in the battery pattern storage section 2 in several types of patterns. FIG. 3 is a diagram illustrating the operation of the battery voltage detection section 1. In FIG. Promote battery discharge characteristics during standby.

Assuming that the battery discharge characteristic during transmission is PT, the battery voltage during standby at a certain time txVc is Vn, and the voltage during transmission is 7, the battery voltage detection section obtains information of 7 and (VB - VT)miV. Output as . FIG. 4 shows the patterns P1 to Pn(n) shown in FIG.
is an arbitrary integer), and the remaining usage time is calculated from the discharge characteristics of the pattern Px.

VRIISIT is the operating limit voltage of the device, tnytswt
indicates the operating limit time, and the battery voltage Vy and battery discharge characteristic pattern h during transmission at b'X are determined! ll, the time to use the remaining power in that state rebellion is ('RB
8m+T −tX).

According to the one-shot BAK as described in detail of the invention, the battery voltage detection section 1
, battery pattern storage section 2. By configuring the pattern identification section 3 and the remaining usage time display section 4), the voltage of the battery used in the device is detected, a stored battery pattern is selected, and an arbitrary pattern is selected from the pattern. This provides the effect of easily displaying the remaining usage time at a given point in time.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing one embodiment of the present invention. 1...Battery voltage detection unit, 2...Battery pattern FIG. 2 is a discharge characteristic pattern diagram of the battery pattern storage unit according to the present invention. FIG. 3 is an explanatory diagram of the voltage detection operation of the battery voltage detection section according to the present invention. FIG. 4 is an explanatory diagram of the time calculation operation of the remaining usage time display section according to the present invention.

Claims (1)

[Claims] A battery voltage detection unit that detects the battery voltage of the battery used in the device during standby and transmission, and information that is patterned into several types by checking in advance the dispersion of discharge characteristics of the batteries used, including new and old batteries. a battery pattern storage section for storing;
a pattern identification section that compares the information sent from the battery voltage detection section with the information in the battery pattern storage section and identifies which battery pattern corresponds to the pattern; and a pattern identification section that calculates the remaining usage time from the selected battery pattern. 1. A method for detecting and displaying remaining battery usage time, comprising: a remaining usage time display section for displaying remaining battery usage time.