by ex-Gooserider » 23 Jan 2024, 03:23
There was mention earlier about chair manufacturers (really the control system manufacturers, P&G in the case of R-net) protecting their CAN-bus signals... This is VERY true, and one of the biggest reasons why folks here have been talking about using voltage swing for input, either with an Omni box or by emulating the actual joystick and replacing it by plugging in to the joystick pod in place of it...
Emulating the actual signals between the different modules is a very difficult problem in reverse engineering the proprietary manufacturer signal system. Lots of folks have been trying to do that, but far as I know, nobody really has had much luck doing it...
In terms of the idea of having an 'obstacle avoidance' system like Luci is not bad as a failsafe, depending on who your test subjects are... We have had many folks (Burgerman included) that have done radio control systems for their chairs... One of the things we try hard to emphasize is that an RC chair should only be used by individual with the mental and physical ability to at least hit an E-stop if things go wrong... I suspect that any sort of muscle / brain control system would be far less reliable than a radio, so that caution would apply even more, and it probably would not be bad to have a Luci type system as a further backup....
ex-Gooserider
T-5, ASIA-B
Jazzy 1100
Jazzy Select 6
Quickie Q-7
Invacare Mariner
Want to make / get a better chair, ideally one that stands.