Affordable Vision for cobots
Turn a USB camera into a vision sensor
Aruna Vision is a URCap that runs directly in the controller of the UR cobot; there’s no need for an external computer or controller. It is not for pick and place, but for everything else you can imagine.
Aruna Vision allows a USB camera to give object detection and comparison features to any UR. These two operations constitute the building blocks that can help your cobot to create checkpoints for:
- Presence or absence
- Unidentified elements
On the Robot or On the Side
You can place the camera mounted on the robot, or you can install it in a tripod or fixed to a structure. Whatever works for you, you can even place two cameras in different positions.
We had the arm, and now we have the eyes too
With Aruna Vision, you can give eyes to your UR; you can create programs that can use a checkpoint to validate if a condition is true or false.
Aruna Vision allows you to teach the robot by recording the specified object and differentiating it from the background; then you can use this information to validate the following:
- Is this the object I am looking for?
- Does it have the right size and shape?
- Is it in the right position?
- Is this located within my region of interest?
You can record what is a “good” image on a checkpoint and use that as a reference for the program for comparison. By using If..else statements in the program, you can extend it to multiple images and decisions. Some applications of this are:
- Check if a surface, table, or tray are clean from other objects before an action.
- Search for spots or errors in finishing processes.
- Validate if something is in the way of the robot’s path.
No calibration required
Easy to learn and execute with live feedback
Simple logic for the robot: “Is this what I’m supposed to see?”
It supports multiple checkpoints with separate cameras.
Use off-the-shelf hardware (compatible with more than 200 USB cameras models)
Mount the camera on the robot or on a fixed external mount or tripod.
Allows a threshold level of confidence, you can set the minimum percentage for pass or fail.
Allows defining a region of interest, to improve performance and narrow results.
You can error-proof your process for unknowns, especially when your cobot is interacting or working around people. You can give an extra level of awareness that requires no e-stop triggering, for example:
- Validate if the robot received the right tray
- Check if a surface is clean and ready to work
- Verify if a something or someone is in the way
- Wait until a human puts the desired object in the right place
- Check if the tray has object A or object B, and choose which part of the program to run automatically.
- Trigger a signal to the user when a tray, container, or table is empty and needs refilling.
- Notify if the wrong product is present.
When you capture different objects in Aruna Vision, then you can trigger various events based on the “very specific” characteristics of them. For example:
- Change the motion of the robot based on the type of product
- Classify products into different bins (Note: not bin picking)
- Look for cues in other devices to change actions in the robot.
Electronics’ hardware testing requires thousands of cycles to repeat over and over; cobots are ideal for this. By adding Aruna Vision to a testing process, you can make the robot react to LEDs on or off, messages in LCD displays, or even full touchscreen displays.
Aruna Vision can record a screen message or window and react accordingly; it doesn’t need to know how to read the content of the message, it knows how it looks and remembers; you assign a variable for when the camera captures that message and use an if..else statement to trigger different motions in your UR program.
Autonomous Dual Arm Screwdriver
Lab Viles Validation and Sorting
Automatic Sequence Selection
Aruna is able to detect a missing tray or an object who doesn't fits in the program.
Smart Hardware Testing
- USB camera compatible with UAB Video Class for Linux (UVC drivers)
- Color or grayscale camera
- PolyScope 3.7 or greater
- Compatible with CB series and E Series robots
Do you want to test Aruna Vision?
Frequently Asked Questions
Yes, if your camera is compatible with UVC drivers, it should work. Please check Compatibility.
It depends on the resolution and the series of the robot. But this application is not meant for high-speed machine vision.
Yes, we do not have a known limit of how many cameras you can use, right now you are limited to the USB ports in the controller, although in theory you can use a USB hub and add more. The only limitation is that the cameras can’t be accessed simultaneously; the robot’s controller can’t handle more than one camera at a time.
We recommend limiting the resolution in a CB series to Full HD 1920x1080 (2MP), in the newer e-Series the controller is much faster and can handle up to 4K video (8MP).
We recommend consistent illumination; Aruna Vision can handle slight light changes without a problem. Still, drastic changes in the light will give inconsistent results or will require tuning the confidence values to avoid false negatives.
No, you can compare one to another, but it is not a metrology device.
Yes, Aruna Vision supports both.
No, these libraries and software are huge with thousands of functions that are very technical. Aruna Vision is easy and straightforward. On the back, it runs complex algorithms like the ones in high-end machine vision software. Still, we invest a lot of time on automating hundreds of parameters to keep it accessible to everyone; this limits the scope and features. That way, you don’t need to be a machine vision expert to use it; Aruna Vision takes less than 30 minutes to learn and has a limited scope.
Auto-focus cameras are very flexible and can adapt to multiple situations. Still, they can give you unpredictable results when the camera can’t focus on the object and instead focuses on something else, or even worse, it can keep looking for something to focus on without being able to find a focus point.
Yes, Aruna Vision is compatible with Robotiq’s camera. But there is a limitation, you can’t run the pick and place features at the same time as Aruna Vision; Robotiq’s software keeps the camera connected and blocks other programs to use the camera once it starts. Aruna Vision only uses the camera when it is required and can switch between multiple cameras.
No, the functions are complimentary.
No, it can we mounted on a tripod, structure, or panel. Depending on your application, you will need to choose if you need a very rigid mount.
No, although Aruna Vision shares some of the features found in motion sensors like the ones from Keyence, it lacks the speed and redundancy required for safety standards. It can add a soft layer of protection, but nothing that replaces dedicated safety sensors.
Not at this time, but if users ask for this feature, we would be happy to implement it.
Aruna Vision Camera
If you need a tested professional USB camera with interchangeable lenses, rugged design, and dedicated mounting adapter for Universal Robots and camera tripods, choose Aruna Vision Camera: