Battery status detection method and network device using the same
AssigneeSercomm Corporation
InventorChien-Yu Chang
Life of this patent
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Abstract
The present invention provides a battery status detection method, which includes the following steps: iteratively executing the following steps: obtaining a current voltage value and a previous voltage value of a battery; calculating a difference between the current voltage value and the previous voltage value; adjusting a low battery state indicator according to the difference; and determining whether to output a low battery warning signal according to the low battery state indicator.
Claims14
A battery status detection method for a network device to detect whether a battery enters a low battery state, comprising:
- iteratively executing the following steps:
- obtaining a current voltage value and a previous voltage value of the battery by a voltage sensor;
- calculating a difference between the current voltage value and the previous voltage value by a determination logic circuit;
- adjusting a value of a low battery state indicator based on a first adjustment scheme when the difference is greater than or equal to a first threshold by the determination logic circuit;
- and
- determining whether to control a transmitting circuit to output a low battery warning signal according to the low battery state indicator by the determination logic circuit, wherein when the value of the low battery state indicator crosses a second threshold, the low battery warning signal is output.
A battery status detection method for a network device to detect whether a battery enters a low battery state, comprising:
- obtaining a current voltage value and a previous voltage value of the battery by a voltage sensor;
- determining whether a difference between the current voltage value and the previous voltage value is greater than or equal to a first threshold by a determination logic circuit;
- adjusting a value of a low battery state indicator based on a first adjustment scheme when the difference is greater than or equal to the first threshold by the determination logic circuit;
- and
- outputting a low battery warning signal by a transmitting circuit when the value of the low battery state indicator crosses a second threshold.
A network device for battery status detection, comprising:
- a voltage sensor, configured to detect voltage of a battery to obtain a current voltage value and a previous voltage value of the battery;
- a transmitting circuit;
- and
- a determination logic circuit, configured to determine whether a difference between the current voltage value and the previous voltage value is greater than or equal to a first threshold, adjust a value of a low battery state indicator based on a first adjustment scheme when the difference is greater than or equal to the first threshold, and control the transmitting circuit to output a low battery warning signal when the value of the low battery state indicator crosses a second threshold.
Dependencies are inferred from the claim text.