FIELD One embodiment of the invention relates to a closed loop thermal control process in a portable electronic device having several embedded temperature sensors. Other embodiments are also described. BACKGROUND Most electronic products in use today…

关键词:Zone.Cooling.Governor.Step Wise.Fair Share.trip等等. Linux Thermal的目的是控制系统运行过程中采样点温度,避免温度过高造成器件损坏,确保芯片长期稳定工作. 整个Thermal框架可以分为四部分: Thermal Driver负责将获取温度设备,注册成struct thermal_zone_device,比如Temp Sensor.NTC等. Thermal Governor则负责如何控制温度,注册成struct thermal_…

图表 1 Thermal框架 随着SoC性能的快速提升,功耗也极大提高,带来的负面影响是SoC的温度提高很快,甚至有可能造成物理损坏.同时功耗浪费也降低了电池寿命. 从上图可知,Thermal框架可以分为Thermal Core.Thermal Governor.Thermal Cooling.Thermal Driver以及Thermal Device Tree五大部分. Thermal Core作为User Space和Kernel的接口,同时也是Thermal框架的中枢.Thermal D…

本文转载自:https://blog.csdn.net/zhouhuacai/article/details/78172267 版权声明:本文为博主原创文章,未经博主允许不得转载.    https://blog.csdn.net/zhouhuacai/article/details/78172267thermal子系统概述thermal子系统是内核提供的温控管理框架,一套软件温度解决方案,配合ic内部温度传感器,对ic温度进行管控,保证系统稳定性. thermal系统多用于对ic内部的重点发热…

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to wager gaming machines. More specifically, it relates to thermal management within a gaming machine. 2. Description of the Related Art With energy prices rising, ga…

BACKGROUND The field of invention relates to the computer sciences, generally, and, more specifically, to the thermal management of components other than a processing core. Computing systems have traditionally been designed with a bus (such as a "fro…

作者信息 作者: 彭东林 邮箱:pengdonglin137@163.com QQ:405728433 平台简介 开发板:tiny4412ADK + S700 + 4GB Flash 要移植的内核版本:Linux-4.4.0 (支持device tree) u-boot版本:友善之臂自带的 U-Boot 2010.12 (为支持uImage启动,做了少许改动) busybox版本:busybox 1.25 交叉编译工具链: arm-none-linux-gnueabi-gcc (gcc vers…

作者信息 作者: 彭东林 邮箱:pengdonglin137@163.com QQ:405728433 平台简介 开发板:tiny4412ADK + S700 + 4GB Flash 要移植的内核版本:Linux-4.4.0 (支持device tree) u-boot版本:友善之臂自带的 U-Boot 2010.12 (为支持uImage启动,做了少许改动) busybox版本:busybox 1.25 交叉编译工具链: arm-none-linux-gnueabi-gcc (gcc vers…

IPA(Intelligent Power Allocator)模型的核心是利用PID控制器,Thermal Zone的温度作为输入,可分配功耗值作为输出,调节Allocator的频率和电压值. 由Power Management一般开发模型可知,包括模型建立,模型实现,验证. 1 IPA模型 PID控制器在Sustainable Power基础上,根据当前温度和Control Temp之间的差值,来调节可分配功耗值的大小,进而调节Cooling设备的状态,也即调整OPP(Voltage和Fre…

A network authentication method is to be implemented using a network authentication device and a user end for authenticating the user end. The network authentication method includes the steps of: configuring the network authentication device to store…