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Why dooroos Why dooroos

Why dooroos. RTOS Requirement 2 A real-time operating system (RTOS) is an operating system (OS) intended to serve real-time application requests.operating

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Page 1: Why dooroos. RTOS Requirement 2 A real-time operating system (RTOS) is an operating system (OS) intended to serve real-time application requests.operating

Why dooroosWhy dooroos

Page 2: Why dooroos. RTOS Requirement 2 A real-time operating system (RTOS) is an operating system (OS) intended to serve real-time application requests.operating

RTOS Requirement

Page 3: Why dooroos. RTOS Requirement 2 A real-time operating system (RTOS) is an operating system (OS) intended to serve real-time application requests.operating

3

A real-time operating system (RTOS) is an operating system (OS) intended to serve real-time application requests.A key characteristic of a RTOS is the level of its consistency concerning the amount of time it takes to accept and complete an application's task; the variability is jitter.[1] A hard real-time operating system has less jitter than a soft real-time operating system. The chief design goal is not high throughput, but rather a guarantee of a soft or hard performance category. A RTOS that can usually or generally meet a deadline is a soft real-time OS, but if it can meet a deadline deterministically it is a hard real-time OS.A real-time OS has an advanced algorithm for scheduling. Scheduler flexibility enables a wider, computer-system orchestration of process priorities, but a real-time OS is more frequently dedicated to a narrow set of applications. Key factors in a real-time OS are minimal interrupt latency and minimal thread switching latency, but a real-time OS is valued more for how quickly or how predictably it can respond than for the amount of work it can perform in a given period of time.

RTOS ?

http://en.wikipedia.org/wiki/Real-time_operating_system

Page 4: Why dooroos. RTOS Requirement 2 A real-time operating system (RTOS) is an operating system (OS) intended to serve real-time application requests.operating

RTOS (Real-Time Operating System) 시스템의 응용프로그램이나 드라이버가 하드웨어나 사용자의 요청에 기대되는 시간 내에

응답을 보낼 수 있도록 작성된 운영체제이다 .

HardwarePorting

Operating System

원하는 기능을 하는 응용프로그램을

제작한다 .

•Operating System ?=> 시스템을 제작할 때 , 모든 프로그램을 직접 작성하지 않고 , 다양한 기능을 할 수 있는

표준 기능을 가지고 있는 일련의 프로그램을 운영체제라 한다 . 운영체제는 하드웨어를 직접 접근하지 않고 하드웨어 등을 제어하여 사용자가 원하는 기능을 할 수 있도록 한다 .

RTOS ?

Page 5: Why dooroos. RTOS Requirement 2 A real-time operating system (RTOS) is an operating system (OS) intended to serve real-time application requests.operating

펌웨어 환경

RTOS 환경

개발 비용 절감80 %

시스템 안정성 확보

하드웨어 제약 탈피

프로그램 재 사용성 증가

업그레이드 비용 절감45 ~ 65 %

다양한 기능구현

RTOS 도입효과

Page 6: Why dooroos. RTOS Requirement 2 A real-time operating system (RTOS) is an operating system (OS) intended to serve real-time application requests.operating

완벽한 호환성 제작된 응용프로그램 및 GUI 를 그대로 활용 다시 활용

최상의 성능 유지 시스템의 성능을 RTOS 에서 최상으로 관리 , 안정성 유지

관리 비용 절감 새로운 S/W 배포 및 기존 프로그램 Upgrade 시 어플리케이션만 교체로 인한 관리인력 및 비용 절감

A/S 비용 절감 디바이스 드라이버 사용으로 이상 장소 발견 용이

S/W 제작 비용 절감 표준 라이브러리 제공으로 프로그램 제작에 따른 비용 절감

효율적인 개발 관리 표준 플랫폼을 사용하여 여러 프로젝트 동시 개발 가능

RTOS 도입효과

Page 7: Why dooroos. RTOS Requirement 2 A real-time operating system (RTOS) is an operating system (OS) intended to serve real-time application requests.operating

dooroos history

Page 8: Why dooroos. RTOS Requirement 2 A real-time operating system (RTOS) is an operating system (OS) intended to serve real-time application requests.operating

app1app appapp

NANOKERNEL

TIMESERVER

SYSTEMSERVER

SYNCSERVER

DEVICESERVER

FILESYSTEMSERVER

WINDOWSERVER

NETWORKSERVER

NANO-KERNEL

MICRO-KERNEL

MACRO-KERNEL

dooroos.realtime Structure

DRV DRV

DRV

DRV DRVDLL

DLL DLL DLL

apps apps appsapps

Page 9: Why dooroos. RTOS Requirement 2 A real-time operating system (RTOS) is an operating system (OS) intended to serve real-time application requests.operating

H/W

HAL

USB

M/S

LCD

KB

D

Synchronization server

Time server

System server

Nano-kernel

DEV

ICE

SE

RV

ER

FILES

YSTEM

SE

RV

ER

WIN

DO

W

SE

RV

ER

GR

APH

ICLIB

RA

RY

(DLL)

FAT

12

/16

/32

RO

MR

AM

libra

ry(D

LL)

APPLICATION

JFTL (DRV)

FLASH

Sound

NETW

OR

KSE

RV

ER

NETW

OR

KPR

OTO

CO

LN

etD

rvs

LOA

DE

R S

ER

VER

UA

RT

Mix

er T

OU

CH

cpu core

DLL DLLDLL DLL DLL DLL

DLL

dooroos.realtime BlockDiagram

Page 10: Why dooroos. RTOS Requirement 2 A real-time operating system (RTOS) is an operating system (OS) intended to serve real-time application requests.operating

V.S

V.S

dooroos

Linux/android

Page 11: Why dooroos. RTOS Requirement 2 A real-time operating system (RTOS) is an operating system (OS) intended to serve real-time application requests.operating

OS Comparison

dooroos.realtime Linux Windows CE

structure module monolithic mixed

filesystem supported supported supported

IO system supported supported supported

windowing supported supported supported

networking supported supported supported

library Not enough enough enough

apps Not enough enoughenough

Memory(Min/

Recommended)

500KB/16MB16MB / 128MB

(64MB / 256MB : android)16MB / 128MB

royalty ~ 2,000 won(1.5$) Free / android () 16$

Page 12: Why dooroos. RTOS Requirement 2 A real-time operating system (RTOS) is an operating system (OS) intended to serve real-time application requests.operating

Why dooroosWhy dooroos