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Parameter calibration method for range sensor and terminal

A distance sensor and parameter calibration technology, which is applied in the field of sensors, can solve problems such as distance sensor misjudgment, and achieve the effect of improving accuracy

Inactive Publication Date: 2017-09-29
SHENZHEN GIONEE COMM EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The embodiment of the present invention provides a parameter calibration method and terminal of a distance sensor, which can solve the problem in the prior art that when oil stains appear on the surface of the IR hole of the distance sensor, it is easy to cause misjudgment of the distance sensor

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  • Parameter calibration method for range sensor and terminal
  • Parameter calibration method for range sensor and terminal
  • Parameter calibration method for range sensor and terminal

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Embodiment Construction

[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0029] It should be understood that when used in this specification and the appended claims, the terms "comprising" and "comprises" indicate the presence of described features, integers, steps, operations, elements and / or components, but do not exclude one or Presence or addition of multiple other features, integers, steps, operations, elements, components and / or collections thereof.

[0030] It should also be understood that the terminology used ...

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Abstract

The embodiments of the invention disclose a parameter calibration method for a range sensor and a terminal. The method comprises the steps of: acquiring the current working state of the range sensor, wherein the working state comprises an approaching state or a leaving state; if the working state is an approaching state, acquiring a first original data value of the range sensor, wherein the first original data value expresses the reflected infrared strength value detected by the range sensor; detecting whether the first original data value is greater than a preset threshold, wherein the preset threshold is the sum of a preset base noise value, an approaching state judgment threshold and a preset oil stain value; and if the first original data value is greater than the preset threshold, calibrating the preset state judgment threshold. When oil stains are present on an IR hole surface, the approaching state judgment threshold and the leaving state judgment threshold can be calibrated, so that based on the threshold obtained by calibration under an oil stain environment, an object can be accurately judged to leave the range sensor, and the accuracy of range detection is improved.

Description

technical field [0001] The invention relates to the technical field of sensors, in particular to a parameter calibration method and a terminal of a distance sensor. Background technique [0002] The distance sensor is also called the displacement sensor. It detects the physical change of the object according to the internal preset components. By converting the change into a distance, the distance displacement from the distance sensor to the object can be measured. According to the different components used, distance sensors can be divided into optical displacement sensors, ultrasonic displacement sensors, infrared pulse sensors, etc. [0003] At present, the distance sensor used in the mobile phone is a sensor that uses infrared pulses to measure the distance. It is generally installed on both sides of the handset or in the groove of the handset to realize the intelligent control of the handset. Specifically, when the user is answering or making a call, the mobile phone is ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S11/12
CPCG01S11/12
Inventor 汤江华
Owner SHENZHEN GIONEE COMM EQUIP
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