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Battery electric quantity statistics method and device

A statistical method and technology of battery power, which can be used in measuring devices, measuring electrical variables, measuring electricity, etc., and can solve problems such as inaccurate battery power statistics.

Pending Publication Date: 2021-04-30
XIAN CHINASTAR M&C
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0003] The invention provides a battery power statistics method and device, which solves the technical problem of inaccurate battery power statistics in the prior art, and achieves the technical effect of combining output current and temperature to calculate battery power and improving the accuracy of battery power statistics

Method used

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  • Battery electric quantity statistics method and device
  • Battery electric quantity statistics method and device

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Embodiment 1

[0024] The embodiment of the present invention provides a battery power statistics method, please refer to the attached Figure 1-2 , the method includes:

[0025] Step S100: obtaining the output current of the battery;

[0026] Step S200: Obtain the working temperature of the battery;

[0027] Specifically, the device is connected to the battery, and the battery only provides electrical energy for the normal operation of the device. When the device is working, the output current of the battery and the ambient temperature when the battery is working are detected, wherein the working temperature is the ambient temperature when the battery is working.

[0028] Step S300: Obtain the total capacity of the battery according to the output current and the operating temperature;

[0029] Wherein, step S300 includes:

[0030] Step S310: Obtain the correspondence between the total capacity and the output current at different temperatures;

[0031] Step S320: Obtain the total capaci...

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Abstract

The invention discloses a battery electric quantity statistics method. The method comprises the steps of obtaining an output current of a battery, obtaining the working temperature of the battery, obtaining the total capacity of the battery according to the output current and the working temperature, obtaining the effective capacity of the battery according to the total capacity, obtaining a power consumption behavior of the device, and obtaining the residual electric quantity of the battery according to the effective capacity and the power consumption behavior. The technical problem of inaccurate battery electric quantity statistics in the prior art is solved, and the technical effects of calculating the battery electric quantity in combination with the output current and the temperature and improving the accuracy of battery electric quantity statistics are achieved.

Description

technical field [0001] The invention relates to the technical field of storage batteries, in particular to a battery power statistics method and device. Background technique [0002] For a device powered by a battery, the power of the battery is directly related to whether the device can operate normally and for how long it can operate normally. The existing battery power statistics scheme only calculates and judges the battery power based on the battery voltage. Since the battery power has a great relationship with the discharge current, after continuous high-current operation, the battery voltage will be pulled down, resulting in a falsely low battery voltage. When the discharge current is very small (it can reach about 5uA when the device is in sleep mode), the battery voltage will be falsely high, resulting in inaccurate battery voltage collection and inaccurate power calculation. Contents of the invention [0003] The invention provides a method and device for counti...

Claims

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Application Information

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IPC IPC(8): G01R31/396
CPCG01R31/396
Inventor 刘强罗超
Owner XIAN CHINASTAR M&C
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