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Processing algorithm for low battery

A processing algorithm and low-battery technology, which is used in the measurement of electrical variables, current/voltage, and electricity. It can solve problems such as the inability to effectively improve median filtering, increase power consumption of equipment, and trigger low power, and increase standby time. Time, power consumption of the whole machine is reduced, and the effect of avoiding wake-up and power-on

Inactive Publication Date: 2021-07-30
SHENZHEN ELINK SMART CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the fluctuating battery voltage, low battery is triggered frequently, and the device wakes up frequently to increase power consumption
Even if various software filtering algorithms are used such as average filtering and median filtering, the problem still cannot be effectively improved

Method used

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  • Processing algorithm for low battery
  • Processing algorithm for low battery

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Embodiment Construction

[0016] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0017] see figure 1 , a low battery processing algorithm 1 of the present invention comprises the following steps,

[0018] S1: start; system initialization;

[0019] S2: ADC collects voltage; if the collected voltage value is greater than 3.3V, it is confirmed as a normal working state and enters sleep; if not, it is confirmed as a low battery state and enters sleep;

[0020] S3: Wake up; use ADC to collect voltage; if the collected voltage value is not greater than 3.3V, it will go to sleep again; if the collected voltage value is greater than 3.3V but not greater than 3.4V, it will be confirme...

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Abstract

The invention provides a processing algorithm for low battery, which comprises the following steps: S1, starting; and initializing the system; S2, acquiring a voltage by an ADC (analog to digital converter); if the value of the acquired voltage is greater than 3.3 V, determining that a battery is in a normal working state, and entering a dormancy state; and if not, determining that the battery is a low-power state, and entering a dormancy state; S3, waking up; acquiring a voltage by the ADC; if the value of the acquired voltage is not greater than 3.3 V, entering a dormancy state again; and if the value of the acquired voltage is greater than 3.3 V and not greater than 3.4 V, determining that the battery is in an intermediate state; and S4, if the voltage is larger than 3.4 V, acquiring a voltage by the ADC again. According to the specific processing mode, frequent wake-up and startup caused by voltage fluctuation are effectively avoided, the trigger frequency of low power is reduced, the power consumption of the whole machine is reduced, and the standby time of equipment is prolonged.

Description

[technical field] [0001] The invention relates to the technical field of low-battery power processing algorithms, in particular to a low-battery power processing algorithm with outstanding application effects. [Background technique] [0002] Products powered by lithium batteries often need to detect the battery power. Based on the consideration of cost reduction, most of them use the ADC built in the MCU to detect the voltage of the lithium battery and then convert it into power, instead of using an additional coulomb counter chip. [0003] Since the current of the device is in a state of dynamic change during the working process, the voltage at both ends of the battery will also fluctuate up and down, and the voltage of the device in the sleep and wake-up states is also different, especially when the battery is in a low-battery critical state. The voltage fluctuations are more frequent. [0004] A common low battery judgment algorithm is to set a threshold, such as 3.3V. Wh...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/3835G01R31/367G01R19/25
CPCG01R31/3835G01R31/367G01R19/2503
Inventor 柯浩伟杨文静郭俊峰
Owner SHENZHEN ELINK SMART CO LTD
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