Setup for Local Computer
Contents
Necessary Hardware
- RMP system compatible hardware
- Must have been purchased from Stanley Innovation an origional Segway RMP will not work.
- Computer with Ubuntu 14.04 LTS
- Should be powered by 12VDC so it can be run from the platform
- Minimum 8GB RAM (16 GB prefered)
- Preferably a reasonably fast SSD
- Preferably 2 Gigabit NICS
- You don't need 2 but it is better to have one dedicated to ROS and one to hardware)
- At least 4 USB 2.0 or higher ports
- Only if using IMU, GPS and joystick
- Atleast 1 USB 3.0 port
- Only if using PGR Flea3 USB3 camera
- Wireless router (preferably AC Dual-Band)
- We provide the WRT-AC1900 with our integrated systems
- Logitech F710 Joystick or equivalent
- Components for Setup
- Monitor
- Keyboard (and mouse probably)
- Internet Connection
- Power supply for PC
Install ROS Indigo on Robot Computer
Perform these install steps on the computer responsible for robot control.
1. Some assumptions about your Ubuntu Install
These instructions make the following assumptions about your Ubuntu 14.04LTS install. These are not hard and fast rules, however, the instructions assume these things. When asked during the install you should select the following:
username : sibot
computer name : SIBOT1
password : Welcome00
- The SSH client and server are installed.
- If not run the following commands:
sudo apt-get update sudo apt-get install openssh-client sudo apt-get install openssh-server
2. Setup your ROS sources.list
Setup your computer to accept software from packages.ros.org. ROS Indigo ONLY supports Saucy (13.10) and Trusty (14.04) for debian packages.
sudo sh -c 'echo "deb http://packages.ros.org/ros/ubuntu $(lsb_release -sc) main" > /etc/apt/sources.list.d/ros-latest.list'
3. Set up your ROS keys
sudo apt-key adv --keyserver hkp://pool.sks-keyservers.net --recv-key 421C365BD9FF1F717815A3895523BAEEB01FA116
4. ROS Installation
Make sure the Debian package is up to date:
sudo apt-get update sudo apt-get install ros-indigo-desktop-full
5. Initialize rosdep
sudo rosdep init rosdep update
6. Getting rosinstall
Rosinstall is a frequently used command-line tool in ROS that is distributed separately. It enables you to easily download many source trees for ROS packages with one command.
sudo apt-get install python-rosinstall
Install required packages
Connected to the internet run the following commands:
1. Install useful Linux utilities
These tools are useful for monitoring system processes, setting up networking, and setting up NTPD for the remote computer. They are not necessary but recommended.
sudo apt-get install iperf chrony htop bridge-utils
2. Install required ROS third party packages for segway_v3_robot
These are the packages that RMP V3 depends on:
sudo apt-get install ros-indigo-navigation ros-indigo-gmapping ros-indigo-robot-localization ros-indigo-yocs-cmd-vel-mux ros-indigo-joy ros-indigo-urg-node ros-indigo-lms1xx ros-indigo-pointgrey-camera-driver ros-indigo-cmake-modules ros-indigo-imu-tools daemontools openssh-server libpcap0.8-dev
3. Add yourself to the dialout group
This is necessary if you have serial, or serial-USB devices:
sudo adduser $USER dialout
Environment setup
Edit the local bash environment to add a few useful aliases:
gedit ~/.bashrc
Add the following lines to the end of the file each provides a few shortcuts:
source /opt/ros/indigo/setup.bash alias sws='source ./devel/setup.bash' alias clean_backups='find ./ -name '*~' | xargs rm' alias clean_pyc='find ./ -name '*.pyc' | xargs rm' alias clean_rosbuild='rm -rf build devel install' alias segstop='sudo service segway-core stop' alias segstart='sudo service segway-core start' alias segchk='sudo tail /var/log/upstart/segway-core.log -n 30'
Close your terminal and open a new one to make the changes effective
Setup Workspace
Create a work space in your home directory.
mkdir -p ~/segway_ws/src cd ~/segway_ws/src catkin_init_workspace cd .. catkin_make
Download and install ROS software packages
cd ~/segway_ws/src git clone https://github.com/StanleyInnovation/segway_v3.git git clone https://github.com/StanleyInnovation/segway_v3_robot.git git clone https://github.com/StanleyInnovation/segway_v3_desktop.git git clone https://github.com/StanleyInnovation/segway_v3_network.git cd .. catkin_make
Modify Sudo
This modification allows the user sibot to run start / stop service without entering a password.
sudo visudo
Paste this at the bottom of the file below the "#includedir"
sibot ALL=(ALL) NOPASSWD: /sbin/start segway-core, /sbin/stop segway-core
Save the file
[CTRL-X] [Y] [ENTER]
Setup chrony
- If you are going to be running ROS nodes on a remote computer it is a good idea to setup chrony to synchronize time between the machines
- The onboard robot PC should ideally run the server
- Specific directions for setting up chrony can be found online
Additional Steps
You should probably do these regardless, but these steps are really only required PGR Flea3 camera and onboard PC powered from RMP.
1. Open the grub configuration
sudo gedit /etc/default/grub
2. Add this line
Configures the system to not wait at startup if boot fails
# disable getting stuck in menu after fail GRUB_RECORDFAIL_TIMEOUT=0
3. Update the USB memory buffer to handle USB3
* Locate this line
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"
* Change it to this:
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash usbcore usbfs_memory_mb=1000"
4. Save and exit
5. Update Grub
From the terminal
sudo update-grub sudo modprobe usbcore usbfs_memory_mb=1000
6. Restart the computer
Joystick setup
Install this lightweight joystick tester and run it if you are planning on driving the system around.
sudo apt-get install jstest-gtk jstest-gtk
You should get a pop-up window with your joystick information. Go ahead and click on the correct one and verify that it works. Write down the /dev/input/jsX number and enter it in the configuration on the next screen.
Robot Customization
1. Edit the setup configuration
- To setup your robot configuration edit the 50.segway_config.sh file:
gedit ~/segway_ws/src/segway_v3_robot/segway_bringup/env-hooks/50.segway_config.sh
- Changing this file after you've complied will have no affect, see the note below.
- Review the config file carefully, it allows you to set all the variables needed to customize your platform
- By default it is setup for an RMP 210 V3 with no sensors
Make sure to set SEGWAY_POWERS_PC_ONBOARD appropriately
- Setting it true will make sure the PC shutdown before RMP power is removed
- Setting it false implies that the PC will be powered from something other than the RMP (like a laptop battery)
Make sure ROBOT_NETWORK is set to the physical port ROS will communicate to the outside world on
- The next section has details about the network configuration
- To change the platform to another model (available models RMP_210, RMP_220, RMP_440LE, RMP_440SE, RMP_OMNI)
Edit the variable SEGWAY_BASE_PLATFORM (This is the platform the RMP is based on)
Edit the variable SEGWAY_PLATFORM_NAME (This is the name of the custom robot)
SEGWAY_BASE_PLATFORM is generally the same as SEGWAY_PLATFORM_NAME; unless you create a custom platform or buy one from Stanley Innovation
Edit the variable export SEGWAY_HAS_ONBOARD_JOY=true so we can control the platform with a joystick.
- Using the input from the setup above modify these two lines to be correct:
- export SEGWAY_JOY_DEV=/dev/input/js0 (Could be js2 for virtual machines)
export SEGWAY_JOY_MAPPING=xbox360 (Also tested with extreme3D)
- Using the input from the setup above modify these two lines to be correct:
For all models except the 210 set SEGWAY_HAS_BSA to true
SEGWAY_RUNS_IN_BALANCE_MODE should only be set for the 220 if you want to run in Balance mode
- WARNING!! Do not run navigation in balance mode unless you fully understand the limitations and caveats of balance mode. It is probably best to contact Stanley Innovation and speak with engineering if you have any questions.
2. Compile from source
cd ~/segway_ws catkin_make
3. Future Changes
If you need to go back and change something in the configuration you have two choices. Either modify the destination file which is created during the catkin_make:
gedit ~/segway_ws/devel/etc/catkin/profile.d/50.segway_config.sh cd ~/segway_ws sws
OR
You can modify the file in "env-hooks" listed above and the run the following commands:
cd ~/segway_ws clean_rosbuild catkin_make sws
If your un-sure about the value of a particular variable a quick way to check is with the echo command like this:
echo $SEGWAY_JOY_DEV
Network Setup
You need to set the network up for the platform and the various Ethernet enabled sensors. This is an outline and is intended to be a guide.
NOTE: The ROBOT_NETWORK environment variable must match the port you use for #1 below. It is possible to create the network with 1 NIC and some modifications, however, The following directions will assume you have 2 NICs.
1. Network Overview
Default Settings Outside world <--> eth0 (10.66.172.4) <--> ROS <--> eth1 (10.66.171.4) <--> platform (10.66.171.5) port 8080
- You can set this IP static by editing /etc/network/interfaces:
sudo gedit /etc/network/interfaces
1.1. Set the IP of eth1 to the robot and sensor network
The default IP of the network interface that talks to the platform is 10.66.171.4
- Then add these lines assuming eth1 is connected to all the sensors using Ethernet and the platform
auto eth1 iface eth1 inet static address 10.66.171.4 netmask 255.255.255.0
1.2. Set the IP of eth0 to the ROS Network
- This is the interface that any remote machines will talk to
Add these lines for eth0 into the same still open /etc/network/interfaces
auto eth0 iface eth0 inet static address 10.66.172.4 netmask 255.255.255.0
- Note that if you want to be able to connect to the internet you need to set the connection up to bridge to your internal wireless network, we will not cover that here
1.3. Make sure you setup the networking for all the sensors
- Default sensor addresses are defined in 50.segway_config.sh see above
1.4. Save the file and exit
1.5. Restart the computer
sudo shutdown -r now
1.6. Check your settings
- Verify that all the settings took.
ifconfig
Test your setup
NOTE: Power the PC from an external power supply until you have finished testing
1. Manual Launch
- Ensure the Disable button is not depressed
- Power the RMP on with the silver button
- LED Ring should pulse blue
- The Power LED will blink green
- The status LED should blink yellow indicating the state
- In a new terminal
cd ~/segway_ws sws roslaunch segway_bringup stanley_innovation_system.launch
- You should hear 2 beeps when the configuration server is initialized and 2 more when the platform is ready to accept commands
- The launch is time staged so it takes ~15 seconds to complete
- If you are having issues communicating with the platform:
- Check the network configuration
- The wrong platform may be set in the configuration
- The platform may have the wrong embedded firmware
- The platform may not be on
- The kill switch is pressed
- There are errors on sensors
- The wrong ones maybe selected or they may not be setup correctly
Try using ping to ensure your network is setup correctly
2. Manual launch works, time to install the service
- Kill any ROS nodes that may be running and close all terminals
- Open a new terminal and install the upstart service
cd ~/segway_ws sws rosrun segway_bringup install_segway_core
3. Start the service and make sure it starts up fine
segstart
- To make sure everything starts fine you can repeatedly enter the following until the launch is finished
segchk
- You should hear 2 beeps when the configuration server is initialized and 2 more when the platform is ready to accept commands
- The launch is time staged so it takes ~15 seconds to complete
4. Save anything you might have open
5. Power off the RMP
- Press the silver power button
- You should hear the platform play the shutdown song
- The status LED will turn solid red
- The blue LED ring on the power button will pulse quickly
- The PC should enter shutdown if you have configured it to run on RMP power
- Wait for the system to turn off.
- All LED will turn off after 30 sec
6. Power the PC from the RMP
- Connect the PC power input to RMP power output if you are powering the onboard PC from the RMP
- Typically a DMM is helpful to ensure the proper voltage and polarity.
7. Power on the system
- Power the RMP on with the silver button
- LED Ring should pulse blue
- The Power LED will blink green
- The status LED should blink yellow indicating the state
- If the PC is powered by the RMP, everything should start up when the platform is powered on
- You should hear 2 beeps when the configuration server is initialized and 2 more when the platform is ready to accept commands
- The launch is time staged so it takes ~15 seconds to complete
- If the PC has its own power source, power it on after the embedded system comes up
If you want to stop the service and restart it, open a terminal:
segstop segstart
8. Test Visualization
- Close all the terminals and open a fresh one
- Start robot visualization:
cd ~/segway_ws sws roslaunch segway_viz view_robot.launch
- You should see your robot model come up and be able to see all the different sensors
9. Test reconfiguration GUI
- Open another terminal
sws rosrun rqt_reconfigure rqt_reconfigure
- Expand Segway and mouse over the options to get a description
- Make sure you read the manual and understand what parameters do before changing them
10. See data
Get familiar with RQT http://wiki.ros.org/rqt
- Open a new terminal
sws rqt
- If you are not familiar with RQT just click in the menu and select a few useful ones
Robots->Segway_RMP_V3
Visualization->RVIZ
Topics->Topic Monitor
Configuration->Dynamic Reconfigure
- Experiment, play around with it etc.
11. Drive the system around
- Press the 'B' button to enter tractor mode the platform will beep to confirm
- Hold the deadman switch (left trigger)
- You should now be able to drive the platform around.
- See the control mapping in the configuration files