BackUp

Invokes the BackUp ROS 2 action server, which causes the robot to back up by a specific displacement. It performs an linear translation by a given distance. This is used in nav2 Behavior Trees as a recovery behavior. The nav2_behaviors_ module implements the BackUp action server.

Input Ports

backup_dist

Type

Default

double

-0.15

Description

Total distance to backup (m).

backup_speed

Type

Default

double

0.025

Description

Backup speed (m/s).

time_allowance

Type

Default

double

10.0

Description

Time to envoke behavior for, if exceeds considers it a stuck condition or failure case (seconds).

server_name

Type

Default

string

N/A

Description

Action server name.

server_timeout

Type

Default

double

10

Description

Action server timeout (ms).

Example

<BackUp backup_dist="-0.2" backup_speed="0.05" server_name="backup_server" server_timeout="10"/>