嵌入式系统代写代做代考 Embedded Systems Reconfigurable computing

Reconfigurable computing

Small Embedded Systems

Unit 1.3
Embedded Systems Application Areas

Large Embedded Systems
Large embedded system
Example: medical scanner
Very high cost, complex, bulky system

https://gsy.bailiwickexpress.com/gsy/news/mobile-ct-scanner-helps-cut-waiting-times/?t=i#.Xas0J-hKiUk

Large Embedded Systems
Large embedded system
Example: medical scanner
Very high cost, complex, bulky system
Use an embedded single-board computer
Runs complex operating system

Simple Embedded System
Low cost systems
Few sensors
Simple user interface
Simple sequencing and control
Simple hardware
Very tight cost constraints

Adding Functionality to Simplicity
Internet-connected devices
Communicate to router via Wifi or mains signalling
Monitor and control from anywhere

https://techglimpse.com/crock-pot-smart-cooker-wemo-app-android-ios/

Smart Homes
Current products use mobile app to monitor/control
Heating, aircon, lighting, security, cooker …
Much current research is focussed on medical applications of smart technologies for out-patients
Example:
Cogwatch – EU funded consortium of universities, charities and companies
Use smart home and internet of things technologies for medical rehabilitation

The Cog Watch Project

Rehabilitation in the home for patients with cognitive impairment (e.g. stroke)
Everyday objects (e.g. kettles) have sensors to ensure that they are being used safely
Cameras monitor performance of everyday tasks to give feedback to patient and ensure safety

Smart Cities
Traffic centre aggregates data from sensors and cameras on roads and junctions
Adjusts timing of traffic lights to maximise traffic flow
https://www.crn.com.au/news/cisco-forms-iot-partnership-with-8-billion-infrastructure-firm-downer-497486?utm_source=twitter&utm_medium=social&utm_campaign=crn_autopost

Smart Cities
Car parking spaces sense whether they are occupied
Signal via Internet to display vacant parking spaces on drivers’ mobile devices

Sensor-Enabled On-Street Smart Parking Spaces are Expected to Exceed 1 Million by 2024, According to Navigant Research

Wearable Computers
Smart watches
Smart glasses
Fitness aids
Pulse rate, sleep depth, pace and route tracking

What is wearable computer: simple guide to the technology

https://www.fitbit.com/uk/shop/versa?color=petal

Wearables of the Future
Smart prosthetics
Protective systems for emergency services

https://www.firehouse.com/tech-comm/mobile-technology-accessories/article/21000640/wearable-technology-for-firefighters

Infra-red head-up-display

Wearables of the Future
Monitor medical outpatients’ condition so that they can return home from hospital
Health can be remotely monitored
Recall to hospital if necessary

https://www.todaysmedicaldevelopments.com/article/medical-wearable-technology/

Distributed Systems
Many small embedded systems:
Brakes
Steering
Throttle
communicate to form a complex whole

Drive-by-wire
Drive-by-wire
Historically cars used mechanical systems
shafts, pumps, hoses, coolers
to provide driver with direct physical control over
steering, throttle, brakes, …
Modern trend:
Use computers and electronics to sense driver actions
Transmit data to actuators on vehicle control systems

Drive-by-wire
Use computers and electronics to sense driver actions
Transmit data to actuators on vehicle control systems
Computer system may override/modify driver actions
e.g. pump brakes to avoid skid in icy conditions
http://www.autocarhire.com/travelblog/featured/infiniti-q50-to-introduce-first-steer-by-wire-technology/

Steering force sensors
Electronic clutch
Steering assist motors
Control modules

Autonomous Systems: Cars
Computer system monitors environment and has full control of steering, acceleration and braking
Proposed advantages:
Safety (machine can respond faster than human)
Better road capacity (safe stopping distance reduced)
Fuel economy and lower polluting emissions
Autonomous taxis do away with need for car parks
But, still huge worries about
Safety (computer can crash, in more ways than one)
Cybersecurity (great way to assassinate someone)
Privacy (the System knows where you are all the time)

Summary
Powerful devices with good communication capability are becoming cheap and readily available, leading to
Growth in “smart” devices
Growth in “connected” devices
Distributed systems can harvest data from a large range of devices to make good global decisions

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