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Method and device for controlling infrared proximity sensor

An infrared proximity and sensor technology, applied in the field of communication, can solve problems such as abnormal measurement data of infrared proximity sensors and misoperation of mobile phones, and achieve the effect of avoiding abnormal measurement data of infrared sensors and saving power consumption

Inactive Publication Date: 2016-06-29
GUANGDONG OPPO MOBILE TELECOMM CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Embodiments of the present invention provide a method and device for controlling an infrared proximity sensor, which can solve the problem of mobile phone misoperation caused by abnormal measurement data of the infrared proximity sensor caused by ambient light

Method used

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  • Method and device for controlling infrared proximity sensor
  • Method and device for controlling infrared proximity sensor

Examples

Experimental program
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Effect test

Embodiment 1

[0069] refer to Figure 1c , Figure 1c

[0070] A schematic flowchart of a method for controlling an infrared proximity sensor provided by an embodiment of the present invention. Among them, in Figure 1c In the described embodiment, taking the mobile phone as the execution subject as an example, the specific process of the method may include the following steps:

[0071] S101, measuring the intensity of ambient infrared light;

[0072] For example, the infrared light intensity of the surrounding environment of the mobile phone is measured by the ambient infrared light intensity sensor of the mobile phone. The infrared light intensity can be the ambient infrared light intensity measured in the current measurement cycle, or the ambient infrared light intensity measured in multiple measurement cycles average strength.

[0073] S102. Judging whether the ambient infrared light intensity conforms to a preset rule, if so, execute step S103, and if not, return to step S101.

...

Embodiment 2

[0082] The difference between the present embodiment and the first embodiment is that the judging whether the intensity of the ambient infrared light complies with the preset rules includes:

[0083] judging whether the rate of change of the ambient infrared light intensity reaches a second threshold;

[0084] If the rate of change of the ambient infrared light intensity reaches a second threshold, it is determined that the ambient infrared light intensity complies with a preset rule.

[0085] Taking a mobile phone as an example, for example, the ambient infrared light intensity measured by the mobile phone at T1 is Q1, and the ambient infrared light intensity measured at T2 is Q2, then the absolute value of (Q2-Q1) / (T2-T1) is the above The rate of change of ambient infrared light intensity. Judging whether the rate of change of the ambient infrared light intensity reaches a preset rate of change of the ambient infrared light intensity, and if so, it can be determined that th...

Embodiment 3

[0087] The difference between the present embodiment and the first embodiment is that the judging whether the intensity of the ambient infrared light complies with the preset rules includes:

[0088] judging whether the ratio of the ambient infrared light intensity to the ambient light intensity reaches a third threshold;

[0089] If the ratio of the ambient infrared light intensity to the ambient light intensity reaches a third threshold, it is determined that the ambient infrared light intensity complies with a preset rule.

[0090] Taking a mobile phone as an example, for example, the ambient infrared light intensity measured by the mobile phone is Q, and the ambient light intensity measured by the mobile phone is P, then it is judged whether the ratio Q / P of the ambient infrared light intensity to the ambient light intensity reaches the preset If the ratio is reached, it can be determined that the ambient infrared light intensity complies with a preset rule. For other det...

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Abstract

The invention discloses a method and a device for controlling an infrared proximity sensor. The method comprises the steps of: measuring the intensity of ambient infrared light; judging whether the intensity of the ambient infrared light conforms to a preset rule; if so, controlling the infrared proximity sensor to get into a power conservation state. By implementing the embodiment of the invention, mal-operations of a mobile phone triggered by abnormal measurement data of an infrared sensor caused by infrared rays in ambient light can be avoided to a great degree.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to a method and device for controlling an infrared proximity sensor. Background technique [0002] With the rapid development of mobile terminal intelligence, the use of mobile terminals has become very popular, and infrared proximity sensors are almost a necessary component of every mobile terminal. The infrared proximity sensor judges the distance between the obstacle and the sensor by emitting infrared rays outward, and then measuring the intensity of the infrared rays reflected back when encountering obstacles. The mobile phone performs preset operations based on the distance information measured by the infrared proximity sensor, such as distance Turn off the display screen of the mobile phone when it is less than a certain threshold. However, in the actual use process, the infrared rays in the ambient light will affect the intensity of the reflected infrared rays measure...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F1/32H04M1/725H04M1/72448
CPCG06F1/3231G06F1/325H04M1/72448H04M1/72403Y02D30/70
Inventor 张强
Owner GUANGDONG OPPO MOBILE TELECOMM CORP LTD
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