Pimping up Industry Devices with Rasperry Pi, Vert.x und Java 8

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Clement Miller
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1 Pimping up Industry Devices with Rasperry Pi, Vert.x und Java 8 Anatole Tresch Principal BASEL BERN BRUGG DÜSSELDORF FRANKFURT A.M. FREIBURG I.BR. GENEVA HAMBURG COPENHAGEN LAUSANNE MUNICH STUTTGART VIENNA ZURICH

Anatole Tresch Open Source Enthusiast Apache PPMC Member Consultant, Trainer, Software Architect for Java and Container Technologies Oracle Star Spec Lead More than 25 years of

2 Anatole Tresch Open Source Enthusiast Apache PPMC Member Consultant, Trainer, Software Architect for Java and Container Technologies Oracle Star Spec Lead More than 25 years of software development experience Contact: Blog: Slideshare: Twitter: atsticks

3 Agenda 1. Once upon a time 2. The Requirements 3. Insights Connection Endpoints The Protocol Data Event Handling Pandora s Box 4. Business Value and Future 3

4 Houston, we have a problem

5 How it all started A phone call A kick-off meeting Agile Setup An offer A prototype A successful demo

6 What? Give me some context

7 The Machines

8 The Management System Windows Application Can be connected to multiple machines Used for Monitoring Auditing & History Machine Configuration

9 Deployment View Cabling, Connector Issues Network Issues - Failures - Process failures - Outages - IP Config Lost or invalid - IP Setup Changes - Software Updates - Outages

10 What the Customer wanted (aka Requirements) 10

11 The Requirements for the Retrofit-Box (RFBox) Ensure Audit can be done in case of Network Failures Printer Failures The Box hereby should be transparent to the management system can be attached to different machines and interfaces runs with no outages is transparent to the machine

12 Solution

13 The system context

14 14 Insights

15 Connection Endpoints

16 Serial Communication RS485

17 The Binary Protocol - Structure STX (Start of TXT) RS 485: 0x02 in payload need to be masked by 0x00 IP: no 0x02 masking 5 <= LEN <= <= CMD <= <= DATA <= 250 CHK: CHK = 0x00 Repeat for all bytes: CHK << 1 CHK += Carry For IP: always 0x00

18 The Binary Protocol - Datatypes

19 The Binary Protocol Example (Status Response)

20 Detailed Example: Status Request

21 Machine Response - Examples STXLENNODECMDPAYLOADCHK Silence: STXLENNODECMDPAYLOADCHK Process start: e e e e Process data (1/second, cycle duration: minutes) 022e040f e b00007d f e040f e b00007b f e040f e b00007a f b 022e040f e b f b 022e040f e b e f2 022e040f e b e ea 022e040f e b e da 022e040f e b e d2 022e040f e b e ca 022e040f e b e c2 022e040f e b00006f d e040f e b00006e d a 022e040f e b00006d d Process end: e

22 RFBox Event Handling All Communications are handled also internally asynchronousl via the Vertx event bus. 22

23 Opening the Pandora s Box 23

24 24 RFBox Internal Components

25 25 RFBox Internal Components Level 1

26 Mini UPS, LEDs, Boxing Protection Coverage from Humidity and Heat Simple User Interface (Controllable LED Button) Unit of Shipment Connectivity to Power, RS 485 Buses, IP, Printer

27 RFBox Control Scripts LED Blinking Voltage Monitoring, Controlled Shutdown, Prevent Startup Button Action Handling Respawning of failed processes

28 RFBox Symbian Linux Read-Only System FS Automatic Application Process Startup SSH Server TCP/IP Stack

29 RFBox Configurator Authentication Configuration file import 18n file import RFBOX main process jar updates and restarts Based on Java 8 Will probably be replaced with rpm packaging/apt

30 RFBox Main Application Main RFBOX application Based on Java 8 Vertx.io

31 RFBox Application Components

32 Business Value & Future

33 Imagine

34 We have an installation base of thousands of machines world wide

35 Customers expect very fast reaction times

36 Customers expect quality services

37 So if you would know always

38 when machines failed,

39 when machines show deviations (=they will make troubles in the future),

40 how much the machines have been used and

41 whatever else the collected data may show

42 that would be nice, wouldn t it?

43 BUT

44 the best thing is

45 you know it before your customer does!

46 The IOT Gateway Project Global IOT Gateway

47 Summary

48 Summary All Started with a small fast prototype Building Industry Devices is hard and interdisciplinary Building Medical Devices is even harder Low Level programming with Java is fun If you have to deal with asynchronous events use a good library from scratch Vertx and Java 8 are awesome

Anatole Tresch Principal Consultant anatole.

49 Anatole Tresch Principal maketechsimple.wordpress.com

Apache Tamaya Configuring your Containers...

Apache Tamaya Configuring your Containers... BASEL BERN BRUGG DÜSSELDORF FRANKFURT A.M. FREIBURG I.BR. GENF HAMBURG KOPENHAGEN LAUSANNE MÜNCHEN STUTTGART WIEN ZÜRICH About Me Anatole Tresch Principal Consultant,