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A flashlight control method and device

A control method and flash technology, applied in the field of communication, can solve problems such as damage and excessive temperature of flash when used for a long time, and achieve the effect of avoiding damage and reducing temperature

Active Publication Date: 2020-07-03
VIVO MOBILE COMM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The embodiment of the present invention provides a flashlight control method to solve the problem that the temperature of the flashlight exceeds the standard or is damaged for a long time

Method used

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  • A flashlight control method and device
  • A flashlight control method and device
  • A flashlight control method and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A flashlight control method provided by an embodiment of the present invention is introduced in detail.

[0022] refer to figure 1 , showing a flow chart of a method for controlling a flashlight in an embodiment of the present invention, applied to a mobile terminal, the method comprising:

[0023] Step 101 , judging whether the first pre-flash temperature and / or the first pre-flash voltage of the flashlight in the pre-flash stage of this shooting meet a preset condition.

[0024] In this embodiment, the flash light is divided into two stages, including a pre-flash stage and a main flash stage. The last shooting and this shooting were carried out continuously, and the temperature of the flash gradually increased after a long period of use. Therefore, in this shooting, the first pre-flash temperature and / or the first pre-flash voltage of the flash in the pre-flash stage were detected, according to this The first pre-flash temperature and / or the first pre-flash voltage ...

Embodiment 2

[0029] refer to figure 2 , shows a flow chart of a flashlight control method in another embodiment of the present invention.

[0030] Step 201, detecting the second pre-flash temperature and the second pre-flash voltage of the flashlight in the pre-flash stage of the last shooting.

[0031] In this embodiment, the second pre-flash voltage and the second pre-flash temperature in the pre-flash stage of the last shooting are detected. Specifically, detecting the pre-flash temperature may be detected by a thermal sensor; or after detecting the pre-flash voltage of the flash lamp, the pre-flash temperature corresponding to the pre-flash voltage may be searched. Preferably, the mobile terminal is provided with a heat-sensitive device for detecting the ambient temperature, and the second pre-flash temperature of the last shooting flash in the pre-flash stage can be detected through the following steps:

[0032] Step 1, detecting the voltage of the thermosensitive device.

[0033]...

Embodiment 3

[0060] A flashlight control device provided by an embodiment of the present invention is introduced in detail, which can realize the details of the flashlight control method in Embodiment 1 to Embodiment 2, and achieve the same effect.

[0061] refer to image 3 , shows a block diagram of a flash control device in an embodiment of the present invention, which is applied to a mobile terminal, and is characterized in that the device includes a preset condition judging module 301 and a flash control module 302:

[0062] A preset condition judging module 301, configured to judge whether the first pre-flash temperature and / or the first pre-flash voltage of the flashlight in the pre-flash stage of this shooting meet the preset conditions;

[0063] The flashlight control module 302 is configured to turn off the flashlight when the preset condition is satisfied, or, in the main flash stage of this shooting, drive the flashlight with a first driving current, the first driving current i...

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Abstract

The invention provides a flashlight control method and device. The method includes: judging whether the first pre-flash temperature and / or the first pre-flash voltage of the flash in the pre-flash phase of this shooting meet a preset condition; when the preset condition is met, turn off the flash, or, In the main flashing stage of this shooting, the flashlight is driven with a first driving current, and the first driving current is smaller than the second driving current of the flashlight in the main flashing stage of the last shooting. Through the embodiment of the present invention, if the temperature of the flash lamp exceeds the standard when it is used for a long time, the driving current of the flash lamp is reduced or the flash lamp is turned off, thereby achieving the purpose of reducing the temperature of the flash lamp and avoiding damage to the flash lamp due to excessive temperature.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a flashlight control method and device. Background technique [0002] It has become a standard configuration for mobile terminals to be equipped with front and rear cameras, and the rear cameras are equipped with at least one LED (Light-Emitting Diode, light-emitting diode) flashlight, and more and more front cameras are also equipped with LED flashlights for self-portrait supplementary light. The current of the flash lamp of the mobile terminal is fixed, or the current of the flash lamp increases as the ambient light becomes darker, and the temperature of the flash lamp will exceed the standard when used for a long time, which will damage the flash lamp body. Contents of the invention [0003] An embodiment of the present invention provides a method for controlling a flashlight to solve the problem that the temperature of the flashlight exceeds a standard or is ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04M1/725H04N5/235
CPCH04M1/72448H04N23/74
Inventor 尹建华
Owner VIVO MOBILE COMM CO LTD