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Full Discussion: Could USB ever take over PCI
Special Forums Hardware Could USB ever take over PCI Post 302867223 by Corona688 on Wednesday 23rd of October 2013 04:38:50 PM
Old 10-23-2013
Another thing to keep in mind -- every time they make an interface faster or better, it either needs more expensive cables, or shorter cables. This is because, the faster the signal, the more it reduces with distance. Look what increasing the speed of Ethernet did to its maximum lengths:

Code:
Interface   Speed       Max-length
  10base5    10  Mbit   500 meters on coax
  10baseT    10  Mbit   185 meters on two pairs
 100baseT    100 Mbit   100 meters on two pairs
1000baseT   1000 MBit  	100 meters on FOUR pairs with error-correction

They're trying to make Thunderbolt via viber optic popular, which can avoid this to a degree.
 

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robot-pmaptest(1)					      General Commands Manual						 robot-pmaptest(1)

NAME
robot-pmaptest - occupancy grid map creation tool SYNOPSIS
robot-pmaptest [options] <logfilename> DESCRIPTION
robot-pmaptest is utility demonstrates the basic functionality of the pmap library and serves a handy mapping utility in its own right. Given a Player logfile containing odometry and laser data, robot-pmaptest will produce an occupancy grid map of the environment. OPTIONS
-g disable the GUI (run in console mode only). --range_max range maximum effective range for the laser in meter (default: range saved in logfile). --position_index index index of odometry device in logfile (defualt: 0). --laser_index index index of laser device in logfile (default: 0). --num_samples number number of samples in particle filter (default: 200). --resample_interval number number of scans between resampling steps. --resample_sigma width width of resampling gaussian. --num_cycles number number of optimization cycles in the fine phase (default: 100). --robot_x position initial position of the robot on the x-axis. --robot_y position initial position of the robot on the y-axis. --robot_rot rotation initial rotation of the robot in degrees. --grid_width width width of the grid in meters (default: 64.0). --grid_height height height of the grid in meters (default: 48.0). --grid_scale scale scale of the grid in meters per cell (default: 0.10). --laser_x position position of the laser scanner on the robot. --laser_rot rotation rotation of the laser scanner on the robot in degrees. --robot_hostname hostname the hostname of the robot to verify in the logfile. --robot_hostname hostname the hostname of the robot to verify in the logfile. --skip time amount of time to skip between log entries. --range_resresolution resolution of the laser (only used inlodo, not lodo2 which is currentlyused). --action_model_xx factor believe factors in the change of the robot's pose. --action_model_rx factor believe factors in the change of the robot's pose. --action_model_rr factor believe factors in the change of the robot's pose. AUTHOR
Player was written by Brian Gerkey <gerkey@users.sourceforge.net> and contributors. This manual page was written by Daniel Hess for the Debian Project. SEE ALSO
The HTML documentation in /usr/share/doc/player/html of the robot-player-doc package. robot-playervcr(1) Player May 2009 robot-pmaptest(1)
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