基于Android模拟P-Sensor的设计与实现  

Design and Implementation of Virtual P-Sensor Based on Android

作　　者：李红义 孔庆德 方伟[3] 吴双卿[3] 胡超[3] LI Hongyi;KONG Qingde;FANG Wei;WU Shuangqing;HU Chao(TCL CommunicationTechnology (Ningbo) Ltd., Ningbo 315100, China;TCL Communication Research Institute, Ningbo 315100, China;Ningbo Institute of Technologyy Zhejiang University, Ningbo 315100, China)

机构地区：[1]TCL移动通信科技(宁波)有限公司,宁波315100 [2]TCL通讯宁波研究院,宁波315100 [3]浙江大学宁波理工学院,宁波315100

出　　处：《集成技术》2019年第4期63-68,共6页Journal of Integration Technology

基　　金：浙江省自然科学基金项目(LQ17F030002);宁波市自然科学基金项目(2017A610108)

摘　　要：该文基于高通MSM8939平台,在不增加距离传感器(Proximity Sensor,P-Sensor)的前提下,提出了一种基于触摸屏的距离传感器模拟方法。该文首先介绍了电容触摸屏面板触点位置检测原理和数值计算方法,并给出模拟P-Sensor距离检测原理;然后,基于触摸屏模组和基带芯片的接口电路以及电源管理芯片,设计并实现了模拟P-Sensor的硬件电路;最后,采用UML(统一建模语言)序列图的设计方式,实现了基于服务端-客户端框架层中的模拟P-Sensor通道控制程序设计,并根据距离检测结果实现了屏幕的亮灭自动控制以达到节省功耗的目的。This paper proposed a solution to realize the virtual proximity sensor(P-Sensor) based on usual touch panel.The principle of the distance detection based on capacitance touch panel is introduced firstly.And the hardware system is developed according to the baseband and power management units.Using the UML(unified modeling language) sequence diagram,the control channel framework for the virtual P-Sensor is realized based on server-client system.With the distance detection results,the screen can be turn on or off automatically to save power consumption.

关 键 词：ANDROID 模拟P-Sensor Linux内核驱动 框架层 UML序列图 

分 类 号：TP249[自动化与计算机技术—检测技术与自动化装置]