Team 2013 Weekly Presentation #1 9/29/2019 - 10/05/2019 Weekly - - PowerPoint PPT Presentation

Team 2013 Weekly Presentation #1

9/29/2019 - 10/05/2019

Weekly Progress

• Submitted Problem Statement on September 30th
• Beginning research on IoT testing/verification (in general terms)

The Problem

• Many IoT devices - need one way to test

them

• Focus on HVAC
• System composed of

○ Machine - sensors push data to cloud through a gateway ○ Cloud - stores/analyzes data ○ Interface - usually mobile/web app to monitor data and/or control machine (actuators) Carrier Wi-Fi thermostat

Simple IoT Architecture

Types of HVAC Systems

• Heat Pump
• Rooftop Unit
• Water Source Heat Pump
• Packaged HVAC
• Split System HVAC
• Ductless System

Heat Pump

Technologies Used in IoT

• RFID - uses radio frequency
• NFC - mostly used in mobile devices
• Bluetooth - close range wireless comm
• Z-Wave - low power RF tech. Mainly used for

home automation (lamp controlling, etc.)

• Wi-Fi - most common in IoT
• 2G/3G/4G/5G
• Others

RFID

IOT Management

• Device Management
• Being able to adopt a standardized device management protocol/services will enable

better device security, interoperability, and power/processing capabilities.

• Device Connectivity and Management
• For IOT there are many options in terms of communication and connectivity.
• Each communication protocol has varying ranges in terms of power consumption,

bandwidth and latency, and security. All of which needs to be considered when choosing a suitable protocol for a particular IOT application.

Goals of IoT Verification/Testing

• Performance - speed of data transfer
• Scalability/Reliability - how scalable and reliable is the system
• Cost/time reduction
• Automation - testing process should do most of the work
• Compatibility - process should apply to many different devices

Types of IoT Testing

• Usability: How useful is the device? Can it provide the necessary data?
• Compatibility: Many devices, different hardware/software
• Reliability and scalability: Simulations to ensure reliability and scalability of
• device. Can we add more devices to the system?
• Data integrity: Lots of data, needs to be verified
• Security: Many users accessing lots of data, need authentication (passwords,

encryption, etc.)

• Performance: Speed of acquiring/transferring data

Gray Box Testing

• Probably used in this project
• Develop test cases for a system that is only partially understood

○ Might know how the systems interact with each other, but not sure how each system works ○ Info, documentation, source code are limited

Challenges to Consider

• Complexity of hardware-network-software mesh
• Device interaction in real time

○ security, backward compatibility, upgrade issues

• Real-time data testing
• Many different UIs
• Network availability/strength/etc

What to do next

• Figure out:

○ Technologies that Carrier uses for IoT ○ How these systems interact with each other ○ What tools can be provided

• Ask for a model
• Find out which verification goals we should focus on
• Define a reference IoT architecture (focus on HVAC)
• Get answers to questions in problem statement
• Ultimately, find out what exactly needs to be delivered

References

1. https://www.guru99.com/iot-testing-challenges-tools.html 2. https://www.softwaretestinghelp.com/internet-of-things-iot-testing/ 3. https://www.buildings.com/news/industry-news/articleid/21020/title/drive-hvac- efficiency-with-internet-of-things-functionality 4. https://www.propmodo.com/how-iot-is-taking-over-the-hvac-industry/ 5. http://twentyonecelsius.com.au/blog/everything-you-need-to-know-about-hvac- systems/