Since its beginning, the Performance Advisory Council aims to promote engagement between various experts from around the world, to create relevant, value-added content sharing between members. For Neotys, to strengthen our position as a thought leader in load & performance testing. During this event, 12 participants convened in Chamonix (France) exploring several topics on the minds of today’s performance tester such as DevOps, Shift Left/Right, Test Automation, Blockchain and Artificial Intelligence.

1. Connected cars to the Net,
IoTs on the roads
Bruno Audoux

2. Connecting cars to the Net, IOTs on
the roads

3. Remember my friendClyde
• In 2017, Clyde was working in a
giant warehouse
• In 2018, Clyde was working on the perfect
autonomous scripting methodology

4. Today, Clyde wants to connect his car
• Now, Clyde would like to connect his car to his smartphone, but not only

5. But what is it possible to do with this connection ?
• The Motor companies have many ideas about what it could do with a
connected device in a car

6. Let’sgo simple, choose 3 major activities
• Remote control my car with my smartphone
• GPS navigation
• FOTA

7. New challenge : connecting thousand of cars
• Now motor companies will have to challenge new technologies inboard
• But connecting thousand of cars means supporting billions of transactions
• They need method and tools to test this new world activity before building
the cars
• Clyde will show you how to do !

8. The Motor Company Program
• In this new world, MCP is the new CLOUD program from the motor
company to connect, manage, follow the cars

9. GPS & NAVIGATION
• Let’s start simple with a GPS request
• Simple HTTPS/JSON request
• MCP as a PROXY (SaaP)
Maps Services

10. How to bench navigation: Init
• My car initializes connexion with GPS service through MCP Token Server
Payload {Service,
latitude;
longitude,
Radius shape,
radius size,
nb session request}
INIT session
Token
server
Proxy URL:TOKEN
Maps Services
Give Token
Services type :
- Fuel price
- Weather
- Traffic density
- Security Area

11. How to bench navigation: GPS messages
• What does a simple GPS request look like ?
POST
https://PROXY.MCP.com:8888/GetMessages?
sessionID=f73172566 HTTP/1.1
User-Agent:
Jetty/9.3.7.v20160115NeotysEdition.41
Current-Car-Position: lat=48.85589;lon=2.29808
Content-Type: application/tts+json
Content-Length: 478
{ "getMessages": {
"current":{
"@lat":"48.85589",
"@lon":"2.29808"}
HTTP/1.1 200 OK
Date: Sat, 02 Feb 2019 09:06:10 GMT
Server: Apache-Coyote/1.1
Cache-Control: no-cache
Content-Type: application/tpeg+binary
Content-Length: 30931
xÌtl
ƒà¼ë á
ámTom TPEGTomT
ƒà½�v
Binary / Map

12. How to bench navigation: Init
• My car ask for service map every 2 mins
Payload {latitude;
longitude,
token}
GET Message
Proxy
Server
Binary Map
Maps ServicesGET Message
Binary Map

13. How to bench navigation: Volume
• How many cars ?  10 000 ? 50 000 ? 1 million ?
• How many request ?  1000 / s ? More ?
• Response time allowed ?  05s ? 1s ? 5s ?
• All the services in the same script
• Forks and loops to simulate GPS activity

14. REMOTECONTROL MY CAR
• REMOTE Client Portal
Remote activities :
- Horn and light
- Lock / Unlock
- Start engine and warm car

15. How to bench remotecontrol
Client Portal
Messaging
Queue
Connexion initiate by Car only
Message Pop and Push in a messaging
queue
Neoload simulate user AND car
activity in the same script with
2 technologies and 2 kinds of
connexions protocoles

16. FOTA
• What is FOTA  Firmware Over The Air
• Is the capacity to update à firmware or GPS MAP on a remote device
• Common for Smartphone but new for car devices

17. FOTA practicle
• FOTA is a complex alchemy between, Car parts characteristics, Firmware
compatibility, campaign management and firmware update in the car
FOTA Portal
Car
Caracteristics
DATABASE
Firmware
Database
FOTA SERVER

18. How to Bench Fota
• FOTA inboard client talk with OMA protocol !!!
• OMA DM is complex and not include in Neoload
• I create a client simulator on Linux with complex parameters and security
• Best idea : Neoload launch a script that launch FOTA client simulator
• Let’s see how it works !

19. FOTA: How to bench ?
FOTA Portal
Firmware
Database
FOTA SERVER
Start a
campaign
API / JSON
OMA DM
LINUX
CLIENT
SIMULATOR

20. FOTA: Technical complexity
• Start campaign  API/REST(JSON)
• Start car simulator  Linux .sh command
• Get FOTA download time in FOTA server  API/REST(JSON)
• Kill car simulator  Linux (kill -9) command

21. SECURITY
• What about security ?
• Only SSL certificat communication
Client certificat
Server certificat

22. CertificatManagement
• Creating certificate for every car
simulated is long, complex and not
so easy to understand
• it needs sometimes special skills in
PKI and certificates format to
understand how to create and
manipulate certificates between
Servers, applications and Neoload.

23. And Neoload is a tool for …
Injection Monitoring
Scheduler Emulator

24. Conclusion
• Bench with 25 000 VU is difficult
• Bench with certificates is complex
• Bench with Linux scripts and Pid management could be hazardous
• Bench with API/REST is blindness
• But bench with all of them is soo strong
• Next step  automatization 

25. Questions?