Lowe-electric-quantity shutdown method

A low-battery, low-power-consumption technology, which is applied in measuring devices, data processing power supplies, measuring flow/mass flow, etc., can solve problems such as short service life, battery damage, battery aging, etc., and achieve the effect of prolonging service life

Inactive Publication Date: 2013-03-27

KUNDA COMP TECHKUSN +1

6 Cites 4 Cited by

AI-Extracted Technical Summary

Problems solved by technology

[0005] 2. Failure to discharge the remaining power in the battery before recharging, resulting in the aging of the battery and the short service ...

Abstract

The invention provides a low-electric-quantity shutdown method. The shutdown operation is carried out according to using states of an electronic device. The using states of the electronic device include a high-power-consumption using state and a low power-consumption using state. The low-electric-quantity shutdown method comprises the following steps of detecting whether battery electric quantity is lower than a preset charging threshold value or not; judging whether the electronic device is in the high-power-consumption using state or not when the battery electric quantity is lower than the preset charging threshold value; and delaying shutdown when the electronic device is in the high-power-consumption using state. When the current electric quantity of a battery is lower than the preset charging threshold value and the electronic device is in the high-power-consumption using state, the shutdown is delayed, accordingly long stand-by time of the battery can be kept, and the service life of the battery can be prolonged.

Application Domain

Volume/mass flow measurementPower supply for data processing

Technology Topic

Electrical batteryEngineering +3

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Examples

Experimental program(1)

Example Embodiment

[0022] See figure 1 As shown, the low-power shutdown method of the present invention can perform shutdown operations according to the use state of the electronic device, where the use state of the electronic device includes a high-power use state and a low-power use state, and the high-power use state can be navigation, DVB-T also has movie playback, etc. The low power consumption state can be stop navigation, turn off DVB-T and stop playing movies, etc. The low power shutdown method includes the following steps:

[0023] Step 10: Detect whether the battery power is lower than the preset charging threshold; the preset charging threshold can be set as needed, for example, the preset charging threshold can be set to 10% of the maximum battery power; when the battery power is lower than When the charging threshold is preset, go to step 20; otherwise, go to step 10;

[0024] Step 20: Determine whether the electronic device is in a high power consumption state;

[0025] In this embodiment, the specific method for judging whether the electronic device is in a high power consumption state is to identify the value of Battery_critial_low_Delay_action. Different values represent different use states. When the value of Battery_critial_low_Delay_action is 1, the electronic device is in a high power consumption state. When the value of Battery_critial_low_Delay_action is 0, the electronic device is in a low power consumption state. The Battery_critial_low_Delay_action can be checked by the user. In the checked state, the value of Battery_critial_low_Delay_action is 1, and in the unchecked state, the value of Battery_critial_low_Delay_action is 0.

[0026] When the electronic device is in a high power consumption state, perform step 30; otherwise, perform step 40;

[0027] Step 30: Delay shutdown;

[0028] Step 40: Control the GPIO of the CPU to switch the charging circuit as a path, and execute the shutdown action;

[0029] Step 50: Charge the battery and when the battery is charged to 100%, control the GPIO of the CPU to switch the charging circuit to open.

[0030] See figure 2 As shown, the specific process of step 30 is as follows:

[0031] Step 31: Perform the first delay operation; for example, a delay of 5 minutes, where the delay time can be set according to the power consumption, and is not limited to 5 minutes;

[0032] Step 32: Determine again whether the electronic device is in a high power consumption state; if it is determined that the electronic device is in a high power consumption state again, perform step 33; if it is determined that the electronic device is in a low power consumption state again, perform step 34;

[0033] Step 33: Perform a second delay operation; for example, a delay of 5 minutes; in this embodiment, it performs a second delay operation, but the number of times to perform the delay operation can be set according to the power consumption, or it can be 1 time, 2 times, 3 times...not limited to two times;

[0034] Step 34: Control the GPIO of the CPU to switch the charging circuit as a path, and perform a shutdown action;

[0035] The present invention delays shutdown when the current battery power is lower than the preset charging threshold and the electronic device is in a high power consumption state, that is, when the electronic device ends the high power consumption state during the delayed shutdown process, the battery power rises to When it is not lower than the preset charging threshold, the shutdown operation is no longer performed, so that the battery can maintain a longer standby time. In addition, the battery is charged by the charger after shutdown. When the battery is charged to 100%, the GPIO of the CPU is controlled to switch the charging circuit to open, that is, when the current battery power is not lower than the preset charging threshold, the charging is refused. Thereby extending the service life of the battery.

[0036] The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited to this. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention. It should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.

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Lowe-electric-quantity shutdown method

A low-battery, low-power-consumption technology, which is applied in measuring devices, data processing power supplies, measuring flow/mass flow, etc., can solve problems such as short service life, battery damage, battery aging, etc., and achieve the effect of prolonging service life

AI-Extracted Technical Summary

Problems solved by technology

Abstract

Image

Examples

Example Embodiment

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Description & Claims & Application Information

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