Power/failsafe LED

[blazerbotics]

but if you are powering the led off the RX supply then the RX may be off yet the link still be in. In THEORY nothing should happen, it should be in failsafe, but theres still the chance of a valve firing etc.

[andy_kane]

Very difficult to get rovs to scoop robots out of the pit.

This thread is going around in circles.

For the record the ruling for external lamps is now required.(FRA members and Events)1/1/04
The reason for having these lamps was to aid arena operatives to stand a chance of knowing when a robot is dead or alive when disarming in an arena, and not for roboteers themseves. Arena operators are extra careful when disarming robots when there is no light on.
A roboteer must has as always done, only rely on the link for safety disarming purposes.
It was envisaged that link in/ light on, link out light off, and should be powered off the main battery and not off the receiver battery.
It is very easy to wire up. As for colour I use green for go!

[ukrobotics]

Robots stuck in the pit are less of a hazzard as they cant move too far anyway. The ROV would ovbiously be for removing robots that are no longer working but are still on the arena floor, not in the pit.


Dominic

http://www.ukrobotics.comhttp://www.ukrobotics.com

[babeth]

And no matter how knowledgeable you are of your robot or professional training... always be wary. You may also not know every roboteers professional or experience status, do not rely on that anyway as we all make mistakes now and then, but also do not suppose firsthand that one is not knowing what one is doing. A difficult thing maybe.
I would advise caution at all times.
(Knowing very well that people will become complacent anyway but Ill think of wake-up calls...)

[geoff]

Thank you Andy,
I hope that covers it for everyone!
Very sound point there too, Babeth

[big_nipper]

Daniel counldnt have said it better my self.

Andy. I think people should read the FRA rules before commenting anymore so they dont keep making fools of themselves (Says just printing a new copy out).

Dominic, Think theyre safe in the pit. Next time theres 7 robots in jonnos pit (sheffield) well let you stick your hand in there and disarm them all, youll soon change your mind and as for being able to see them in direct sunlight you dont know what your on about take alook at ours, done right its easy to see (LEDs less than 50 pence and a couple of resistors). Even lights the floor up when upside down so you can still see them.

I think Ill put a link on every side of the robot that way anyone who comes near us will get disquilified .

Roger, you dont know Daniel then do you. If memory serves me right you had wooden barriers last year and no enclosed arena, only 4 or 5 robots turned up so as far as I know you have no where near the experiance in running events as roaming robots and are not in a position to insult people on the matter.

[maddox]

1 big thing that goes in favour of the Power On led.
All the machines and electrical equipment,that I know of has one way or another to indicate they are on

Anyone an amplifier, a car radio, TV and lots of other things?


Mark, I would call Roger Plants use of words gruff at least. Maybe the mans way.

[tim_jones]

I personally have no problem with LEDs, but feel that it ia absolutely essential that we achieve some degree od standardisation from the beginning.

This should cover the colours and locations of LEDs, for instance red for main power, green for Rx and yellow for failsafe all in a standard location maybe centre rear of the robot.

Surely the FRA could produce a simple stripboard schematic that we should be working to and list were each LED/lead should be connected. Without some serious uniformity of this standard it is likely to achieve very little and maybe throw in extra risk by creating complacency, yet with just a little more thought and careful regulation it could be a major aid to safety.

Regards

Tim Jones

[ukrobotics]

I was certainly not implying that robots are safe in the pit. But given the choice of removing the robots around the pit with an ROV before approaching the pitted robots has to be a safer way of doing it.

I actually thought that there were plans to make the RR pit open and close hydraulically like the RW one does, in which case that problem would not be an issue.


Anyway, it was only a suggestion


Dominic

http://www.ukrobotics.comhttp://www.ukrobotics.com