The health monitoring of a machine is an assessment wherein the significant change in performance parameters is observed and analyzed with an intention to predict the failure. In this context, many types of analyzers are available but the overall cost is very high and may not be affordable to all. Hence this research work presents a low-cost solution for the development of a novel machine health monitoring system that is reliable, accurate and easy to handle. An open-source platform Arduino Mega 2560 along with the ADXL335 accelerometer is integrated with MATLAB to store & display the acquired data. The program is designed to convert time domain response to frequency domain response using classic Fast Fourier Transform. The system exhibits time domain and frequency domain response to interpret the state of a machine component. The experimental assessment of the developed system with respect to the standard commercially available analyzer is carried out and showed equivalent competency. This system can be used as a monitoring tool in small scaleindustries & for laboratory work in engineering colleges.
A smart bracelet that can be used to track your exercising progress. Take advantage of real-time heart rate monitor, pedometer, calories burned counter and more to make exercising more effective.Xiaomi Mi Band 4Xiaomi Mi Band 4 is an intelligent bracelet meant to give you some insight into your body – it lets you understand how it behaves during exercising by monitoring your heart rate, for example. It’s invaluable data that can be used to make exercising more effective. Additionally, monitoring your progress may be the source of motivation and will encourage you to start exercising more frequently and regularly. Although it was made with people doing a lot of physical activity in mind, Xiaomi Mi Band 4 can be just as well used by those who simply want to monitor their health in real-time, so they could take proper measures sooner in case they find any alarming signals their body is sending.Clear AMOLED Touch DisplayIn Mi Band 4 you will find precise AMOLED touch display that makes it easier to navigate menus and switch between different modes in the band. The font used to present data is big and clear – there’s no need to squint to read all the interesting information during a workout. The interface is intuitive and easy to use, so you will be able to start using the bracelet effectively the moment you get it.Call Receiving and App NotificationsWith the smart bracelet, you can be in touch with the world even during a workout, thanks to the possibility of receiving calls and viewing app notifications directly via the band. Now you can focus entirely on exercising. Once someone wants to contact you, you won’t need to stop to take the phone out – just take a quick look at your wrist. Receive the call and speak using your earbuds or Bluetooth headphones. Isn’t that convenient?Anti-Idle FeatureThe band encourages active life. It does so by notifying you when you’ve been idle for too long. Sometimes it’s not that easy to find a moment to do some stretching, and it’s easy to forget about it, especially if you are an office worker. Thankfully with the band, you will be reminded to take a break and go for a walk from time to time, ensuring staying in good shape.Water Resistance – Up to 50 metersFear not the water, as the band is waterproof and can be submerged in water in up to 50 meters, meaning you can use it not only during jogging or cycling but also during swimming or doing water sports. The rain also won’t stop you from a daily dose of physical activity – you will be able to monitor your heart rate 24/7 even when the weather is bad.Xiaomi Mi Band 4 SpecsWeight: 22.1gWater Resistance Rating:5 ATMDisplay Type: AMOLEDScreen Size:0.95"Resolution: 120 x 240 RGBColour Depth:24bitScreen Brightness: Up to 400 nits (max brightness), brightness adjustableTouchscreen type: On-cell capacitive touchscreenScreen protection: 2.5D tempered glass with anti-fingerprint coatingButton: Single touch button (wake up, go back)Wrist strap type:Removable wrist strap (Mi Smart Band 4 is compatible with Mi Band 3 straps)Wristband width: 18mmWrist strap material: Thermoplastic polyurethaneAdjustable wrist strap length: 155-216mmRAM: 512KBROM: 16MBSensors:- 3- axis accelerometer + 3-axis gyroscope;- PPG heart rate sensor;- Capacitive proximity sensorWireless connectivity: BT5.0 BLEBattery: LiPo, 135mAhCharging Type: 2Pin Pogo PinCharging time: ≤ 2 hoursStandby time: Up to 20 dayMotor Type: RotorBody material: PolycarbonateApp: Mi FitSystem requirements: Android 4.4, iOS 9.0 or aboveKey featuresClear AMOLED touch display with call and notification receiving featuresReal-time heart rate monitor and anti-idle alarmWater resistance – up to 50 metersSleep tracking that helps to improve the quality of your sleepUp to 20 days of battery life
Yakumo is an exploration of the different technologies used in making a modern game, including graphics, physics simulation, 3D audio and content creation pipeline design. This book follows the processes involved in implementing a game which integrates all of these components, based on using OGRE 3D for graphics and Havok Physics for real-time physics simulation. This book also tackles common issues with such software, such as creating a camera that does not clip through surfaces, writing multithreaded code, and supporting reliable network communication. Implementation of an I/O library for iPhone OS devices is also described. This allows physical input to the game by taking advantage of the many sensors of the iPhone/iPod touch, including accelerometer and touch-screen input. In 2009 this book won the IBM Open Source Competition award (University of Limerick, Ireland). All technology produced during this project is released as open source software under the Apache License, Version 2.0 and is available online at http://daniel.ie/
This book is targeted for students of electronics and computer sciences. The first part of the book contains 15 original applications working on the PIC microcontroller, including: lighting diodes, communication with RS232 (bit-banging), interfacing to 7-segment and LCD displays, interfacing to matrix keypad 3 x 4, working with PWM module and others. This material can be used to cover one semester's teaching of microcontroller programming or similar classes. The volume contains schematic diagrams and source codes with detailed descriptions. All tests were prepared on the basis of the original documentation (data sheets, application notes). The next three chapters: The Stack, Tables and Table Instruction and Data Memory pertain to PIC18F1320. Software referred to is also presented in assembly language. Finally the application of the PIC24FJ microcontroller with the 240x128 LCD display, T6963C and with accelerometer sensor, written in C are described.
The health monitoring of a machine is an assessment wherein the significant change in performance parameters is observed and analyzed with an intention to predict the failure. In this context, many types of analyzers are available but the overall cost is very high and may not be affordable to all. Hence this research work presents a low-cost solution for the development of a novel machine health monitoring system that is reliable, accurate and easy to handle. An open-source platform Arduino Mega 2560 along with the ADXL335 accelerometer is integrated with MATLAB to store & display the acquired data. The program is designed to convert time domain response to frequency domain response using classic Fast Fourier Transform. The system exhibits time domain and frequency domain response to interpret the state of a machine component. The experimental assessment of the developed system with respect to the standard commercially available analyzer is carried out and showed equivalent competency. This system can be used as a monitoring tool in small scale industries & for laboratory work in engineering colleges.
Are you a programmer looking for a new challenge? Does the thought of building your very own iPhone app make your heart race and your pulse quicken? If so, Beginning iPhone 3 Development: Exploring the iPhone SDK is just the book for you. Updated and revised for iPhone SDK 3, many of the discussions in the original book have been clarified to make some of the more complex topics easier to understand. In addition, all of the projects have been rebuilt from scratch using the SDK 3 templates. Assuming only a minimal working knowledge of Objective-C, and written in a friendly, easy-to-follow style, this book offers a complete soup-to-nuts course in iPhone and iPod touch programming. The book starts with the basics, walking you through the process of downloading and installing Apple's free iPhone SDK, and then stepping you though the creation of your first simple iPhone application. From there, you'll learn to integrate all the interface elements iPhone users have come to know and love, such as buttons, switches, pickers, toolbars, and sliders. You'll master a variety of design patterns, from the simplest single view to complex hierarchical drill-downs. The confusing art of table building will be demystified, and you'll see how to save your data using the iPhone file system. You'll also learn how to save and retrieve your data using SQLite, iPhone's built-in database management system. In addition, you'll also learn about Core Data, an important persistence mechanism that has just been added with SDK 3. And there's much more! You'll learn to draw using Quartz 2D and OpenGL ES, add multitouch gestural support (pinches and swipes) to your applications, and work with the camera, photo library, accelerometer, and built-in GPS. You'll discover the fine points of application preferences and learn how to localize your apps for multiple languages. You can discover more about this book, download source code, and find support forums at the book's companion site, at www.iphonedevbook.com. - The iPhone 3 update to the best-selling and most recommended book for iPhone developers - Packed full of tricks, techniques, and enthusiasm for the new SDK from a developer perspective - The most complete, useful, and up-to-date guide to all things having to do with Apple's iPhone SDK What you’ll learn - Everything you need to know to develop your own best-selling iPhone apps - Best practices for optimizing your code and delivering great user experiences Who this book is for Anyone who wants to start developing for iPhone and iPod touch What's changed from the first edition of Beginning iPhone Development - All code samples have been updated to follow current Apple coding conventions - The autorotation code has been updated to use the new single-step fast autorotation instead of the original two-step method - A new section has been added introducing Core Data, covering basic principles and showing how to build a simple Core Data application - All the table view'related chapters have been updated to use table view cell styles. They've also been updated to use textLabel and detailTextLabel instead of the deprecated text property of the table view cell. - All known errata have been corrected - All projects have been rebuilt from scratch using the SDK 3.0 templates - Many concepts have been clarified based on feedback and supplemented with information we've learned from another year of using the SDK
In this practical reference, popular author Lewin Edwards shows how to develop robust, dependable real-time systems for robotics and other control applications, using open-source tools. It demonstrates efficient and low-cost embedded hardware and software design techniques, based on Linux as the development platform and operating system and the Atmel AVR as the primary microcontroller. The book provides comprehensive examples of sensor, actuator and control applications and circuits, along with source code for a number of projects. It walks the reader through the process of setting up the Linux-based controller, from creating a custom kernel to customizing the BIOS, to implementing graphical control interfaces. Including detailed design information on: ESBUS PC-host interface Host-module communications protocol A speed-controlled DC motor with tach feedback and thermal cut-off A stepper motor controller A two-axis attitude sensor using a MEMS accelerometer Infrared remote control in Linux using LIRC Machine vision using Video4Linux The Accompanying CD-ROM contains a wealth of design materials, including: Full schematics and source code for the projects described Ready-made disk images for the miniature Linux distribution uses as the basis for the PC-side software Distribution archives of source code for all GNU software used, along with application-specific patches where appropriate A free version of the schematic capture and PCB CAD software used Atmel AVR Studio * The first-ever book on using open source technology for robotics design! * Immensely valuable source code and design tools provided on the CD-ROM * Covers hot topicssuch as GPS navigation, 3-D sensing, and machine vision, all using a Linux platform!