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Multi-zone application development Automotive Linux Summit
Kevron Rees
Fall 2013
Agenda
- Zone defined
- Automotive Use-cases that require zones
- Automotive Message Broker (AMB)
- AMB Zones API
- Filling the Use-cases
- Security Concerns
Multi-zone application development Automotive Linux Summit Kevron - - PowerPoint PPT Presentation
Multi-zone application development Automotive Linux Summit Kevron - - PowerPoint PPT Presentation
Multi-zone application development Automotive Linux Summit Kevron Rees Fall 2013 Agenda Zone defined Automotive Use-cases that require zones Automotive Message Broker (AMB) AMB Zones API Filling the Use-cases
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Zones Defined
Zone is a specific location inside the vehicle.
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Zone Defined - ctnd
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Use Cases
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Use cases
- The same Seat Position Application running in each zone wants to
set Seat Position.
- Driver wants to use an Application to activate child lock for his
young child
- Driver wants to set the temperature for the front of the car in a 3+
zone vehicle.
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Automotive Message Broker Zones API
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Automotive Message Broker Zones API
AMB provides vehicle data to applications.
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AMB Zones API
- AMB organizes data into logical DBus paths:
/{source_id}/{zone_number}/DataObject
- AMB provides a “Manager” API to discover the different
DataObjects
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AMB - High level
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AMB - Manager
The manager interface allows applications to:
- Find sources for a specific vehicle data object (FindObject)
- Discover zones for a given vehicle data object
(ZonesForObjectName)
- Get a vehicle data object from a specific zone (FindObjectForZone)
- List all supported vehicle data objects (List)
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AMB - Manager
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Zones in AMB
- 6 Zone “masks”
- and a “nozone”
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Common Zone combinations
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DataObject example
/{source_id}/{zone_number}/DataObject
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Where are my zones?
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DataObject interface
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Use-cases fulfilled!
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Use cases
- The same Seat Position Application running in each zone wants to
set Seat Position.
- Driver wants to activate child lock for his young child.
- Driver wants to set the temperature for the front of the car in a 3+
zone vehicle.
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Use Case: The same Seat Position Application running in each zone wants to set Seat Position.
1.
Discover the current application zone {gap}.
2.
DBus API: manager.FindObjectForZone(“SeatPosition”, myZone)
3.
web api: var seatPosition = tizen.vehicle.get(“SeatPosition”, myZone)
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Use Case: Driver wants to activate child lock for his young child
1.
DBus API: manager.ZonesForObjectName(“ChildLock”)
2.
App Displays the zones to Driver.
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Use Case: Driver wants to activate child lock for his young child
1.
DBus API: manager.ZonesForObjectName(“ChildLock”)
2.
App Displays the zones to Driver.
3.
Driver selects a zone
4.
- bj = manager.FindObjectForZone(“ChildLock”, 10)
5.
Driver sets child lock to “true”.
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Use Case: Driver wants to set the temperature for the front of the car in a 3+ zone vehicle.
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Use Case: Driver wants to set the temperature for the front of the car in a 3+ zone vehicle.
1.
var zones = manager.ZonesForObject(“HVAC”)
2.
foreach(zone in zones) if(zone & Zone.Front) //set temp
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Security
- We don’t want apps in certain zones to access other zones:
Example:
- Child zone to set Driver zone’s seat position
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Security
Murphy policy manager
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