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SAE J2735-Draft-Rev29 [issued: 12-11-08]
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296 -
This is an SAE Motor Vehicle Council draft document of the DSRC committee, subject to change.
Form Message Request
Request sent by a vehicle to form a team. No response is sent in the case of a lone vehicle forming a team.
DE_MessageType
o
Message Type
_Team Requestor Identifier
o
Requester ID
DF_DDateTime
o
Timestamp
DF_FullPositionVector
o
Position
o
Heading
DE _Speed
o
Target Speed of the team. Limited by the speed limit value received from the RSE broadcast
message.
DE _Team Identifier
o
Team ID
DF_Position3D
o
Destination (Optional)
5. RSE Broadcast Operations
Roadside should announce zone information regarding team-formation authorization. The following
characteristics are envisioned:
The roadside infrastructure broadcasts zone information, indicating the permissibility of team
formation.
The message must be received prior to vehicles entering the zone, which will provide approaching
teams suitable time to disband if required.
Periodically sent from an RSE indicating the availability of teaming operations.
When a team of vehicles approaches an unauthorized teaming zone, all vehicles within the team will
end teaming operations. This could be accomplished by terminating Status messages to team
members, or by sending a specific termination message. Vehicles will terminate teaming operations in
accordance with defined Exit procedures as defined in Section 3.3.
Levels of Authority (LOA)
o
The levels of authority define the role a participant maintains or possesses within the
cooperative vehicle system. In order to maintain team integrity, levels of authority must be
established within the team concept. Overall authority is reserved for the roadside
infrastructure. Teaming operations leadership resides with the Team Leader. All team
members must maintain direct communications with the Team Leader. If direct
communications are unattainable, the vehicle must leave the team.
Roadside – 0
Team Leader (optional) – 1
Team Member – 2