I’m new to this so please be gentle.
I am developing my first robot , it must have a payload of 500 kg more or less and It must
run at 0.2 m/s ((0.7 km/hour) .
Thanks coleman,
You have reason, and I have chosen other motors with more torque and less rpm from another seller because I need also integrated encoder .
About the controller, I have seen on roboteq web a new controller sd2130 ,it seems me perfect and cheapest option against the older ax1500.
About the wheels, I am looking on manufacturers of industrial wheels, and I guess they have this kind of wheels.
And finally I am looking for the best combination of sensors and sbc or microcontroller in order to guide the bot through rs-232. If you have some opinion
on this , I would known it.
Thanks for all
Regards
JuanManuelGarcia
Thanks coleman,
this robot must be able to follow a path with their encoders and a giroscope sensor .For calibrate it self and set up an origin , it has a induction sensor to detec a metal plate on the floor.
In principle I won’t to implement advance calculations or vision processing, I only want a controller or a sbc with enought power to guide the bot and the easiest programming without use property licenses,like microsoft robotics study or similar.
it sounds well, but which arduino from your shop be able to connect through rs 232 at 115200 bit/s . I need this to control motors with sdc2130 from roboteq.
Excuseme,I am sorry I did not remember say you that I also want add ultrasonic and giroscope sensor to this robot . Is this too much for a microcontroller? Pherhaps with this options I must take a sbc like roboard or diligent?
Welcome to the RobotShop Forum. A 500Kg robot is massive - a gas powered golf cart weights about 250Kg, so you would be moving the weight of two golf carts plus the weight of the robot itself. You would be looking at a platform such as this:
This has a payload capacity of about 900Kg, but there are no onboard batteries which would reduce that payload capacity significantly. Most robots in that weight category use gas powered motors or hydraulics.
Two P60 gearboxes with motors would not be enough to move your robot; we would instead suggest at least four geared down double CIM motors (two CIM motors entering one gearbox. The higher the gear ratio the better. Note that you need even more power to climb an incline.
To power these beasts you would need several high current motor controllers such as those from RoboteQ. We currently do not carry 10" diameter wheels - you should instead be looking at normal (small) vehicle wheels. Lead acid batteries would weight it down significantly, but would ensure you have the capacity and current the robot would need. Lighter weight batteries such as NiMH or even LiPo would cost much more. Ensure you use wire with a low gauge number (thick to allow for high current).
Many single board computers and microcontrollers have RS-232 capabilities and can easily connect to sensors. You’ll need to provide additional details as to what you are looking for. What are you planning to do with the robot?
The requirements you provided can be done by almost any microcontroller with at least 5 digital inputs (two for each encoder and one for the magnetic sensor) and several outputs to control the motors. A single board computer seems a bit overkill for such a simple application, unless there are other sensors you want to connect or advanced calculations (vision processing for example) you want to implement.
