SoftSystem srl
THE 3D vision systems can interface with multiple devices, in particular with most types of robotThey are also able to communicate signals so that the robot executes the instruction indicated by the camera, after having carried out the desired control.
There three-dimensional vision It stems from a completely natural idea, drawing inspiration from one of the most important organs in our body: the eye. We humans have the ability to see our surroundings with two eyes, both capable of perceiving depth thanks to their separate positions and their own angles. Thanks to the processing performed in the brain, we are able to gather all possible information.
3D vision systems can be integrated with multiple cameras or one or more laser displacement sensors (Profilometers).
There 3D vision multicamera, in robot guidance, provides information on the orientation of the details to be displayed.
In contrast, 3D profilometric sensor applications typically include surface inspection and volume measurement, providing 3D results with a single camera. The object or camera must be moved (even across a conveyor belt) to scan the entire product.
The industrial system can calibrate and guide the robot using 3D systems or 2D cameras. An example of an application is the ability to pick a specific component from a pallet and introduce it into the production line or at the end of the line to pick up individual products and proceed with packaging.
3D profilometers are laser sensors capable of scanning the object underneath. Specifically, thanks to a special laser blade, they can capture every line of the blade scanning the product. For the profilometer to work, it must either be in motion (perhaps thanks to a robotic arm carrying it), or, if the sensor is fixed, the object to be scanned must be set in motion beneath it, for example, using a conveyor belt.
The 3D vision system detects and guides movement to avoid any obstructions during picking. The process is divided into two macro-phases:
This type of technology has opportunities in various industrial sectors, including:
There stereoscopic vision It's a technology that offers rapid image recording over a wide acquisition area. This method typically uses two cameras. As with human eyes, the two cameras are staggered to capture the image from two different perspectives.
The software It takes into account the camera positions, compares corresponding points in the two acquired images, identifies the differences and generates a 3D point cloud.
The vision system 3D is able to calibrate and guide the robot through the use of a laser scanner. One application example is the possibility of installing a specific component inside a car. The vision system detects and coordinates the movement to avoid any obstructions when entering the vehicle. The process is divided into 3 phases:
• Analysis of the car's position through some reference points, and calculation of the space required for the robot to pass..
• IEntry into the vehicle of the robot arm integrated with the vision system, and evaluation of the installation site.
• Pick and Place of the component.
One of the advantages of stereoscopic vision is that it captures a 3D image in a single shot, unlike profilometers, which require a scan of the object to be imaged. This system therefore has shorter processing times but cannot achieve the level of detail of 3D laser systems.
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