Leakage current detection method and mobile terminal

A leakage current detection and mobile terminal technology, which is applied in the field of mobile communications, can solve problems such as the inability to detect leakage current, achieve the effects of easy detection or maintenance, and avoid abnormal power consumption

Active Publication Date: 2017-07-18
VIVO MOBILE COMM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The invention provides a leakage current detection method and a mobile terminal, the purpose of ...

Method used

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  • Leakage current detection method and mobile terminal
  • Leakage current detection method and mobile terminal
  • Leakage current detection method and mobile terminal

Examples

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no. 1 example

[0028] see figure 1 , the first embodiment of the present invention provides a leakage current detection method applied to a mobile terminal, including:

[0029] Step 101, when receiving the shutdown operation instruction, send a first control instruction to the fuel gauge of the mobile terminal, so that the fuel gauge collects the current value of the battery circuit of the mobile terminal in the shutdown state.

[0030] Wherein, the battery circuit is the circuit where the battery is located. Leakage current refers to the current generated by the leakage of internal devices of the mobile terminal. Normally, when the mobile terminal is turned off, the internal devices should have no current or a very small current, which is generally on the order of uA. If there is a large current, it will leak The current is high. After the mobile terminal is mechanically damaged or exposed to moisture, a part of a device fails, and leakage current may be generated, resulting in abnormal p...

no. 2 example

[0039] see figure 2 , the second embodiment of the present invention provides a leakage current detection method applied to a mobile terminal, including:

[0040] Step 201, when receiving a shutdown operation instruction, send a first control instruction to the fuel gauge of the mobile terminal, so that the fuel gauge collects the current value of the battery circuit of the mobile terminal in the shutdown state.

[0041] Wherein, when the mobile terminal is turned off, the current situation of the battery circuit cannot be automatically detected, and it is impossible to determine whether there is a leakage current; therefore, in the above steps of the embodiments of the present invention, when the mobile terminal receives the shutdown operation command, Sending a first control instruction to the fuel gauge, instructing the fuel gauge to collect the current value of the battery circuit after the mobile terminal is turned off.

[0042] Preferably, in the step of sending the fi...

no. 3 example

[0080] see Figure 4 , the third embodiment of the present invention provides a leakage current detection method applied to a mobile terminal, including:

[0081] Step 401, when it is detected that the mobile terminal enters the standby state and the display screen of the mobile terminal is turned off, acquire the standby current value when the mobile terminal is in the standby state.

[0082] Wherein, when the mobile terminal enters the standby state and the display screen is turned off, clean up the background running program of the mobile terminal, make the central processing unit of the mobile terminal enter the dormant state, and obtain the standby current value when the mobile terminal is in the standby state.

[0083] Step 402, when it is detected that the standby current value exceeds the preset standby current threshold, a first control command is sent to the fuel gauge, so that the fuel gauge collects the current of the battery circuit.

[0084] Under normal circums...

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Abstract

The invention provides a leakage current detection method and a mobile terminal. The method is applied to the mobile terminal. The method comprises the following steps of when a shutdown operation instruction is received, sending a first control instruction to a voltameter of the mobile terminal so that the voltameter collects a current value of a cell circuit of the mobile phone under a shutdown state; according to the current value collected by the voltameter, calculating a shutdown current value of the cell circuit; determining whether the shutdown current value is greater than a preset leakage current threshold; and when the shutdown current value is greater than the preset leakage current threshold, emitting a prompting message. In the invention, current collection under a shutdown state is realized; and a problem that the mobile terminal can not detect a leakage current under the shutdown state is solved.

Description

technical field [0001] The invention relates to the technical field of mobile communication, in particular to a leakage current detection method and a mobile terminal. Background technique [0002] The mobile terminal is usually provided with a fuel gauge module, and the fuel gauge module is usually provided with a sensor for reading the magnitude of the current passing through the battery, including the charging current and the discharging current. In the power-on state, the mobile terminal can read the current value through the fuel gauge module. However, in the power-off state, the mobile terminal cannot collect the current of the battery circuit, so it is impossible to know whether there is leakage current in the power-off state. Since the central processing unit (CPU) of the mobile terminal does not work, the current of the battery circuit cannot be obtained, so if there is leakage of the device on the battery circuit, the system cannot know it, which may cause abnormal...

Claims

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Application Information

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IPC IPC(8): G01R19/25
CPCG01R19/25
Inventor 陈光辉
Owner VIVO MOBILE COMM CO LTD
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